The injection of solutions into the skin by compressed air devices so that only the solution pierces the skin.
Introduction of substances into the body using a needle and syringe.
A chronobiologic disorder resulting from rapid travel across a number of time zones, characterized by insomnia or hypersomnolence, fatigue, behavioral symptoms, headaches, and gastrointestinal disturbances. (From Cooper, Sleep, 1994, pp593-8)
Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from about one to three times predicted anatomic dead space. Used to treat respiratory failure and maintain ventilation under severe circumstances.
Injections made into a vein for therapeutic or experimental purposes.
Forceful administration into a muscle of liquid medication, nutrient, or other fluid through a hollow needle piercing the muscle and any tissue covering it.
Injections introduced directly into localized lesions.
Forceful administration under the skin of liquid medication, nutrient, or other fluid through a hollow needle piercing the skin.
Methods of delivering drugs into a joint space.
Forceful administration into the peritoneal cavity of liquid medication, nutrient, or other fluid through a hollow needle piercing the abdominal wall.
A refined petroleum fraction used as a fuel as well as a solvent.
The forcing into the skin of liquid medication, nutrient, or other fluid through a hollow needle, piercing the top skin layer.
The injection of drugs, most often analgesics, into the spinal canal without puncturing the dura mater.
Injections into the cerebral ventricles.
Elements of limited time intervals, contributing to particular results or situations.
Delivery of drugs into an artery.
The administration of substances into the VITREOUS BODY of the eye with a hypodermic syringe.
Introduction of therapeutic agents into the spinal region using a needle and syringe.
A weight-carrying structure for navigation of the air that is supported either by its own buoyancy or by the dynamic action of the air against its surfaces. (Webster, 1973)
The administration of substances into the eye with a hypodermic syringe.
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
Design, development, manufacture, and operation of heavier-than-air AIRCRAFT.
Instruments used for injecting or withdrawing fluids. (Stedman, 25th ed)
Experimental transplantation of neoplasms in laboratory animals for research purposes.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
Ionized gases, consisting of free electrons and ionized atoms or molecules which collectively behave differently than gas, solid, or liquid. Plasma gases are used in biomedical fields in surface modification; biological decontamination; dentistry (e.g., PLASMA ARC DENTAL CURING LIGHTS); and in other treatments (e.g., ARGON PLASMA COAGULATION).
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Complex petroleum hydrocarbons consisting mainly of residues from crude oil distillation. These liquid products include heating oils, stove oils, and furnace oils and are burned to generate energy.
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
A rare form of supraventricular tachycardia caused by automatic, not reentrant, conduction initiated from sites at the atrioventricular junction, but not the ATRIOVENTRICULAR NODE. It usually occurs during myocardial infarction, after heart surgery, or in digitalis intoxication with a HEART RATE ranging from 140 to 250 beats per minute.
The relationship between the dose of an administered drug and the response of the organism to the drug.
The injection of very small amounts of fluid, often with the aid of a microscope and microsyringes.
Accumulation of a drug or chemical substance in various organs (including those not relevant to its pharmacologic or therapeutic action). This distribution depends on the blood flow or perfusion rate of the organ, the ability of the drug to penetrate organ membranes, tissue specificity, protein binding. The distribution is usually expressed as tissue to plasma ratios.
The analysis of a chemical substance by inserting a sample into a carrier stream of reagent using a sample injection valve that propels the sample downstream where mixing occurs in a coiled tube, then passes into a flow-through detector and a recorder or other data handling device.
Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses.
An activity in which the body is propelled through water by specific movement of the arms and/or the legs. Swimming as propulsion through water by the movement of limbs, tail, or fins of animals is often studied as a form of PHYSICAL EXERTION or endurance.
Backflow of blood from the LEFT VENTRICLE into the LEFT ATRIUM due to imperfect closure of the MITRAL VALVE. This can lead to mitral valve regurgitation.
A superorder of CEPHALOPODS comprised of squid, cuttlefish, and their relatives. Their distinguishing feature is the modification of their fourth pair of arms into tentacles, resulting in 10 limbs.
Sharp instruments used for puncturing or suturing.
Abuse, overuse, or misuse of a substance by its injection into a vein.
Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.
An assisted fertilization technique consisting of the microinjection of a single viable sperm into an extracted ovum. It is used principally to overcome low sperm count, low sperm motility, inability of sperm to penetrate the egg, or other conditions related to male infertility (INFERTILITY, MALE).
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A tubular organ of VOICE production. It is located in the anterior neck, superior to the TRACHEA and inferior to the tongue and HYOID BONE.
Antibodies produced by a single clone of cells.
An encapsulated lymphatic organ through which venous blood filters.
Transplantation between animals of different species.
A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.
Methods of creating machines and devices.
DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition.
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations, or by parent x offspring matings carried out with certain restrictions. All animals within an inbred strain trace back to a common ancestor in the twentieth generation.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
Techniques and strategies which include the use of coding sequences and other conventional or radical means to transform or modify cells for the purpose of treating or reversing disease conditions.
Drugs that block nerve conduction when applied locally to nerve tissue in appropriate concentrations. They act on any part of the nervous system and on every type of nerve fiber. In contact with a nerve trunk, these anesthetics can cause both sensory and motor paralysis in the innervated area. Their action is completely reversible. (From Gilman AG, et. al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed) Nearly all local anesthetics act by reducing the tendency of voltage-dependent sodium channels to activate.
The transparent, semigelatinous substance that fills the cavity behind the CRYSTALLINE LENS of the EYE and in front of the RETINA. It is contained in a thin hyaloid membrane and forms about four fifths of the optic globe.
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.
An esterified form of TRIAMCINOLONE. It is an anti-inflammatory glucocorticoid used topically in the treatment of various skin disorders. Intralesional, intramuscular, and intra-articular injections are also administered under certain conditions.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
Backflow of blood from the RIGHT VENTRICLE into the RIGHT ATRIUM due to imperfect closure of the TRICUSPID VALVE.
Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.
The vocal apparatus of the larynx, situated in the middle section of the larynx. Glottis consists of the VOCAL FOLDS and an opening (rima glottidis) between the folds.
A glucocorticoid given, as the free alcohol or in esterified form, orally, intramuscularly, by local injection, by inhalation, or applied topically in the management of various disorders in which corticosteroids are indicated. (From Martindale, The Extra Pharmacopoeia, 30th ed, p739)
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
A cell line derived from cultured tumor cells.
The motion of fluids, especially noncompressible liquids, under the influence of internal and external forces.
Drugs used for their actions on skeletal muscle. Included are agents that act directly on skeletal muscle, those that alter neuromuscular transmission (NEUROMUSCULAR BLOCKING AGENTS), and drugs that act centrally as skeletal muscle relaxants (MUSCLE RELAXANTS, CENTRAL). Drugs used in the treatment of movement disorders are ANTI-DYSKINESIA AGENTS.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.
Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes.
A serotype of botulinum toxins that has specificity for cleavage of SYNAPTOSOMAL-ASSOCIATED PROTEIN 25.
That branch of medicine dealing with the studies and effects of flight through the atmosphere or in space upon the human body and with the prevention or cure of physiological or psychological malfunctions arising from these effects. (from NASA Thesaurus)
The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.
Experimentally induced neoplasms of CONNECTIVE TISSUE in animals to provide a model for studying human SARCOMA.
The introduction of functional (usually cloned) GENES into cells. A variety of techniques and naturally occurring processes are used for the gene transfer such as cell hybridization, LIPOSOMES or microcell-mediated gene transfer, ELECTROPORATION, chromosome-mediated gene transfer, TRANSFECTION, and GENETIC TRANSDUCTION. Gene transfer may result in genetically transformed cells and individual organisms.
A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
Proteins prepared by recombinant DNA technology.
A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE.
Lymphocytes responsible for cell-mediated immunity. Two types have been identified - cytotoxic (T-LYMPHOCYTES, CYTOTOXIC) and helper T-lymphocytes (T-LYMPHOCYTES, HELPER-INDUCER). They are formed when lymphocytes circulate through the THYMUS GLAND and differentiate to thymocytes. When exposed to an antigen, they divide rapidly and produce large numbers of new T cells sensitized to that antigen.
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
Established cell cultures that have the potential to propagate indefinitely.
The valve between the left atrium and left ventricle of the heart.
The motion of air currents.
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
Apparatus, devices, or supplies intended for one-time or temporary use.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
Developmental or acquired stricture or narrowing of the LARYNX. Symptoms of respiratory difficulty depend on the degree of laryngeal narrowing.
Large aggregates of CELESTIAL STARS; COSMIC DUST; and gas. (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed)
Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants.
Scales, questionnaires, tests, and other methods used to assess pain severity and duration in patients or experimental animals to aid in diagnosis, therapy, and physiological studies.
In vivo methods of screening investigative anticancer drugs, biologic response modifiers or radiotherapies. Human tumor tissue or cells are transplanted into mice or rats followed by tumor treatment regimens. A variety of outcomes are monitored to assess antitumor effectiveness.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
Compounds that are used in medicine as sources of radiation for radiotherapy and for diagnostic purposes. They have numerous uses in research and industry. (Martindale, The Extra Pharmacopoeia, 30th ed, p1161)
Mice homozygous for the mutant autosomal recessive gene "scid" which is located on the centromeric end of chromosome 16. These mice lack mature, functional lymphocytes and are thus highly susceptible to lethal opportunistic infections if not chronically treated with antibiotics. The lack of B- and T-cell immunity resembles severe combined immunodeficiency (SCID) syndrome in human infants. SCID mice are useful as animal models since they are receptive to implantation of a human immune system producing SCID-human (SCID-hu) hematochimeric mice.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
Relating to the size of solids.
A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues.
An unpleasant sensation induced by noxious stimuli which are detected by NERVE ENDINGS of NOCICEPTIVE NEURONS.
Substances used to allow enhanced visualization of tissues.
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.
The various ways of administering a drug or other chemical to a site in a patient or animal from where the chemical is absorbed into the blood and delivered to the target tissue.
The rate dynamics in chemical or physical systems.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Usage of a single needle among two or more people for injecting drugs. Needle sharing is a high-risk behavior for contracting infectious disease.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely.
The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.
Insulin derivatives and preparations that are designed to induce a rapid HYPOGLYCEMIC EFFECT.
A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS) or both (ATADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases.
The observable response an animal makes to any situation.
The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.
The production of ANTIBODIES by proliferating and differentiated B-LYMPHOCYTES under stimulation by ANTIGENS.
The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.
Unstable isotopes of indium that decay or disintegrate emitting radiation. In atoms with atomic weights 106-112, 113m, 114, and 116-124 are radioactive indium isotopes.
Substances that inhibit or prevent the proliferation of NEOPLASMS.
Experimentally induced mammary neoplasms in animals to provide a model for studying human BREAST NEOPLASMS.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).
The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.
Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.
Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS.
The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Artificial, single or multilaminar vesicles (made from lecithins or other lipids) that are used for the delivery of a variety of biological molecules or molecular complexes to cells, for example, drug delivery and gene transfer. They are also used to study membranes and membrane proteins.
A representation, generally small in scale, to show the structure, construction, or appearance of something. (From Random House Unabridged Dictionary, 2d ed)
Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.
Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site.
The physical state of supporting an applied load. This often refers to the weight-bearing bones or joints that support the body's weight, especially those in the spine, hip, knee, and foot.
Finely divided solid matter with particle sizes smaller than a micrometeorite, thus with diameters much smaller than a millimeter, moving in interplanetary space. (NASA Thesaurus, 1994)
Lipid-containing polysaccharides which are endotoxins and important group-specific antigens. They are often derived from the cell wall of gram-negative bacteria and induce immunoglobulin secretion. The lipopolysaccharide molecule consists of three parts: LIPID A, core polysaccharide, and O-specific chains (O ANTIGENS). When derived from Escherichia coli, lipopolysaccharides serve as polyclonal B-cell mitogens commonly used in laboratory immunology. (From Dorland, 28th ed)
Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Techniques where DNA is delivered directly into organelles at high speed using projectiles coated with nucleic acid, shot from a helium-powered gun (gene gun). One of these techniques involves immunization by DNA VACCINES, which delivers DNA-coated gold beads to the epidermis.
Refers to animals in the period of time just after birth.
The flow of BLOOD through or around an organ or region of the body.
The making of a radiograph of an object or tissue by recording on a photographic plate the radiation emitted by radioactive material within the object. (Dorland, 27th ed)
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Drugs used in the treatment of movement disorders. Most of these act centrally on dopaminergic or cholinergic systems. Among the most important clinically are those used for the treatment of Parkinson disease (ANTIPARKINSON AGENTS) and those for the tardive dyskinesias.
An acute, highly contagious, often fatal infectious disease caused by an orthopoxvirus characterized by a biphasic febrile course and distinctive progressive skin eruptions. Vaccination has succeeded in eradicating smallpox worldwide. (Dorland, 28th ed)
Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A sarcoma derived from deep fibrous tissue, characterized by bundles of immature proliferating fibroblasts with variable collagen formation, which tends to invade locally and metastasize by the bloodstream. (Stedman, 25th ed)
The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.
Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).
The measurement of an organ in volume, mass, or heaviness.
Biological systems as affected by time. Aging, biological rhythms, and cyclic phenomena are included. Statistical, computer-aided mathematical procedures are used to describe, in mathematical terminology, various biological functions over time.
A transplantable carcinoma of the rat that originally appeared spontaneously in the mammary gland of a pregnant albino rat, and which now resembles a carcinoma in young transplants and a sarcoma in older transplants. (Stedman, 25th ed)
Forms to which substances are incorporated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.
A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
A mental disorder characterized by chronic fatigue and concomitant physiologic symptoms.
The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
Tumors or cancer of the COLON.
One of the mechanisms by which CELL DEATH occurs (compare with NECROSIS and AUTOPHAGOCYTOSIS). Apoptosis is the mechanism responsible for the physiological deletion of cells and appears to be intrinsically programmed. It is characterized by distinctive morphologic changes in the nucleus and cytoplasm, chromatin cleavage at regularly spaced sites, and the endonucleolytic cleavage of genomic DNA; (DNA FRAGMENTATION); at internucleosomal sites. This mode of cell death serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.
The plan and delineation of prostheses in general or a specific prosthesis.
Non-human animals, selected because of specific characteristics, for use in experimental research, teaching, or testing.
A class of compounds of the type R-M, where a C atom is joined directly to any other element except H, C, N, O, F, Cl, Br, I, or At. (Grant & Hackh's Chemical Dictionary, 5th ed)
Identification of proteins or peptides that have been electrophoretically separated by blot transferring from the electrophoresis gel to strips of nitrocellulose paper, followed by labeling with antibody probes.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake.
Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.
An antigen solution emulsified in mineral oil. The complete form is made up of killed, dried mycobacteria, usually M. tuberculosis, suspended in the oil phase. It is effective in stimulating cell-mediated immunity (IMMUNITY, CELLULAR) and potentiates the production of certain IMMUNOGLOBULINS in some animals. The incomplete form does not contain mycobacteria.
Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.
People who take drugs for a non-therapeutic or non-medical effect. The drugs may be legal or illegal, but their use often results in adverse medical, legal, or social consequences for the users.
A mixture of isomeric tritolyl phosphates. Used in the sterilization of certain surgical instruments and in many industrial processes.
The failure by the observer to measure or identify a phenomenon accurately, which results in an error. Sources for this may be due to the observer's missing an abnormality, or to faulty technique resulting in incorrect test measurement, or to misinterpretation of the data. Two varieties are inter-observer variation (the amount observers vary from one another when reporting on the same material) and intra-observer variation (the amount one observer varies between observations when reporting more than once on the same material).
Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).
The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS.
Organs and other anatomical structures of non-human vertebrate and invertebrate animals.
The 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta- and 17-beta-position. Estradiol-17-beta is the most potent form of mammalian estrogenic steroids.
Backflow of blood from the PULMONARY ARTERY into the RIGHT VENTRICLE due to imperfect closure of the PULMONARY VALVE.
A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity.
The uptake of naked or purified DNA by CELLS, usually meaning the process as it occurs in eukaryotic cells. It is analogous to bacterial transformation (TRANSFORMATION, BACTERIAL) and both are routinely employed in GENE TRANSFER TECHNIQUES.
A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.
They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system.
Substances that reduce or suppress INFLAMMATION.
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.
An increased sensation of pain or discomfort produced by mimimally noxious stimuli due to damage to soft tissue containing NOCICEPTORS or injury to a peripheral nerve.
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.
Soon after the war, the manufacture of fuel injection pumps, jets and roller bearings for freight vehicle transport was ... Also during the war Germany built factories in Czechoslovakia to make the Messerschmitt Me 262 jet fighter. The factories ...
The engine has five main bearings. Power was 87 hp (65 kW). Bore x Stroke: 73 mm × 77 mm (2.87 in × 3.03 in) 1969.12-1971.09 ... Those with the later, cleaner yet, "MCA-Jet" system were called G32B. Later, the G32B also came in a fuel injected, ... An updated version with central-point electronic fuel injection was installed in Mirages and Lancers from 1986 on. A version ... The engine has five main bearings, a cross flow head and a single down draught carburetor. Firing order is 1-3-4-2. The GSR ...
Selection of water injection engine ratings (Lift Wet/Short Lift Wet) results in an increase in the engine speed and jet pipe ... The Pegasus was also the first turbofan engine to have the initial compressor fan, the zero stage, ahead of the front bearing. ... Water for the injection system is contained in a tank located between the bifurcated section of the rear (hot) exhaust duct. ... The engine is not only able to power a jet aircraft forward, but also to direct thrust downwards via swivelling nozzles. ...
The A20NFT engine in Opel Astra K TCR car had swapped the original direct fuel injection into multi-point fuel injection. In ... The LSJ shares many of its components with the LK9 such as: piston cooling jets, oil cooler, pistons, connecting rods, ... The engine features a five-bearing forged steel crankshaft, strengthened connecting rods, redesigned pistons, piston oil ... Direct injection reduces emissions by 25%, while continuous cam phasing eliminates the need for an EGR system. Maximum engine ...
"428 Cobra Jet vs. 428 Super Cobra Jet , Mustang 428 Cobra Jet Registry". Retrieved 2014-02-28. "1969 Mercury ... Testing of the 406, with its higher power levels, led to cross-bolted mains - that is, main bearing caps that were secured not ... It used factory-supplied tunnel port heads, a mechanical fuel injection system mounted on a crossram intake manifold, and a ... Cobra-Jet and Super Cobra-Jet - Bore 4.13 in (104.9 mm) X Stroke 3.98 in (101.1 mm); Valvetrain: OHV 2 valves per cylinder, ...
The aluminum cylinder block features pressed-in iron liners, cross-bolted main bearing caps and houses a lightweight forged ... Other features include direct fuel injection camshaft phasing, variable displacement/start-stop cylinder deactivation, and ... variable-pressure oiling system with piston-cooling oil jets. All versions were to come equipped with the Ford 10L90 10-speed ...
A new fuel injection system was introduced for the 2002 year, which worked like a carburetor by employing a CV carburetor slide ... Mechanically, the carburetors were re-jetted in an effort to improve throttle response, especially in the low end, all the way ... The gearbox received a taller first gear, a hollow chrome moly shift shaft with an additional bearing and a completely ...
The reason that the car was stopped and the driver was out was that he was looking for the fuel-injection pump's drive belt, ... Prior to the race the two cars were not running well, so time was spent re-jetting the carburetors. Immediately after this one ... During practice the car developed an oil leak which prompted the team to replace all of the engine's main bearings. On race day ... The engine that he would use for this was a Ford Kent 116E equipped with fuel injection from Tecalemit-Jackson, for whom ...
They have forms like cones and jets. The fumaroles are reported to make "jet"-like noises and temperatures range from 83.2-265 ... The Domo Tinto eruption may have been triggered by the injection of basaltic andesite into two magma chambers containing ... In 1985 and 1987 yellow (sulfur-bearing) steam clouds were reported, reaching heights of 500 metres (1,600 ft) above the summit ...
The oil injection to the bottom end bearings (both main and rod big ends) was retained as a single branched line. A longer ... there were minor mechanical changes made to the carburetor jets, oil injection pump and cylinder port timing in an effort by ... The oil injection system was substantially changed with two separate sets of injection lines, unlike the earlier models with ...
... jet boats (Hamilton jet) and even river barges. The Essex V6 was fitted to a wide variety of cars, both from Ford and from ... In lieu of fuel injection, the carburettor was run inside a pressurized box atop the engine, and the turbocharger itself was ... the Essex V6 also has a very heavy yet sturdy four-main bearing crossplane crankshaft with large 63.52 mm (2.501 in) main ... Late in its production life it was fitted with Lucas controlled electronic fuel injection designed by SAMCOR (South African ...
... see Gasoline Direct Injection). Diesel engines have always used fuel injection system because the timing of the injection ... and greater pressure on bearings which in turn required pressure-lubrication for crank bearings and connecting-rod journals. ... Duct jet engines use the same basic system, but eschew the piston engine, and replace it with a burner instead. In liquid ... Large jet engines and gas turbines are started with a compressed air motor that is geared to one of the engine's driveshafts. ...
The carbon-bearing gases were made with carbon-14 (14C), a heavy, radioactive isotope of carbon. If there were photosynthetic ... This was not true of the Martian soil; on Mars, the second and third nutrient injections did not produce any further release of ... Webster G, Hoover R, Marlaire R, Frias G (2010-09-03). "Missing Piece Inspires New Look at Mars Puzzle". NASA Jet Propulsion ... both initial injections came back positive. Sterilization control tests were subsequently carried out by heating various soil ...
... then to multi-point fuel injection (MPI), using sequential multi-port fuel injection (SMPI) today. It is now used in the 750 ... One year later, a turbocharged variety of the StarJet was introduced under the name "T-Jet", and a MultiAir (adding electro- ... Mechanically, they are simple inline-four engines with five main bearings crankshaft and overhead cam heads. Since 1985, it has ... The FIRE was originally a carburetor engine, and later progressed to single-point injection (SPI), ...
The original reverse-flow cylinder head was replaced by a crossflow design, a new two-barrel carburetor called "Vara-Jet" was ... Other additions for 1985 included roller lifters, improved bearings, and a new crankshaft. Several significant changes were ... Dunne, Jim (February 1982). "Are carburetors kaput? Coming: throttle-body injection". Popular Science. New York: Times Mirror ... 3-5 To maximize durability the engine block was made of cast iron with five main bearings, rather than the relatively fragile ...
Same as the 0-360-E1A6D but with an AiResearch TA402 turbocharger, 8.0:1 compression ratio pistons, piston cooling oil jets and ... Same as the HO-360-C1A but with PAC RSA-5AD1 fuel injection system LHIO-360-C1A 205 hp (153 kW) at 2900 rpm, Minimum fuel grade ... Same as the A2G except that it has a stiffer crankshaft and solid main bearing journals. O-360-A4J 180 hp (134 kW) at 2700 rpm ... Same as the B1B but has different magnetos and a stiffer crankshaft and solid main bearing journals. IO-360-C1A 200 hp (149 kW ...
has a bearings factory in Newark-on-Trent, its European HQ. Illuma Lighting makes industrial lighting next to the railway in ... The first jet aircraft flew from RAF Cranwell in May 1941. During the Second World War, Derby was an important strategic ... Invicta Plastics (injection moulding) is on Scudamore Road. Newall Measurement Systems (electronic sensors) is in South Wigston ... Several rivers in the region gave their name to early Rolls-Royce jet engines, namely the Nene, the Welland, and the Soar. ...
Chevron is the name for sawtooth cutouts that are sometimes applied to the exhaust nozzles of jet engines to reduce the jet ... Fuel injection is regulated by a Hydromechanical Unit (HMU), built by Honeywell. The HMU regulates the amount of fuel delivered ... bearings, oiling systems) could be merged to the main fueling system running on aviation fuel. As design evolved HPC design ... Farnsworth, Clyde (1973). "GE, French To Make Jet Engine". St. Petersburg Times, 23 June 1973, p. 11-A. GE-SNECMA Jet Engine ...
The Jet Propulsion Laboratory (JPL) lost contact with Spirit after last hearing from the rover on March 22, 2010, and continued ... such as iron-bearing carbonates. Characterize the mineralogy and textures of rocks and soils to determine the processes that ... needing the extra energy for Trans-Mars injection. The launch vehicles were integrated onto pads right next to each other, with ... The mission is managed for NASA by the Jet Propulsion Laboratory, which designed, built, and is operating the rovers. On ...
Unusually for a two-stroke engine the gears and outer crankshaft bearings are lubricated by a separate crankshaft driven ... This was achieved by restricting the internal diameter of the exhaust pipes and changes to the carburettor jetting. These ... Lubrication is by direct injection into the inlet manifolds using Yamaha's 'Autolube' pump system. Normally controlled in other ... the restrictor plates in the exhaust to create the same diameter hole as the exhaust pipes had as standard and the re-jetting ...
Some newer compressor technologies use magnetic bearings or air bearings and require no lubrication, for example the Danfoss ... Diaphragm pump Axial-flow compressor of a jet engine Liquid ring Roots blower In order to lubricate the moving parts of the ... However the use of liquid injection for additional cooling can generally overcome this issue in most hermetic motor compressors ... Unfortunately, chlorine- and fluorine-bearing refrigerants reach the upper atmosphere when they escape. In the stratosphere, ...
It is based on the fifth generation LT engine and includes the same features such as direct injection, piston cooling jets, ... The 229 cu in (3.8 L) used the same 2.45-inch (62.2 mm) main bearing and 2.1-inch (53.3 mm) rod bearing diameters as the 200 cu ... This system allowed for a multi-point fuel injection, using one injector. The fuel injection was a batch fire system and used a ... The biggest change to the LU3 and LG3 was the fuel-injection system. These engines used a multipoint fuel-injection system, ...
This uses the injection of gas into the fluid stream which reduces the fluid density and lowers the bottom hole pressure. As ... They include; jet pumping involving a hydraulic pump and nozzle that transfers fluid momentum directly to the producing fluid ... The life-cycle cost of these systems is similar to other types of artificial lift when appropriately designed, bearing in mind ... The gas can be injected at a single point below the fluid or may be supplemented by multipoint injection. An intermitter at the ...
Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis D7650 - 13 Test ... Test Method for Bearing/Bypass Interaction Response of Polymer Matrix Composite Laminates Using 2-Fastener Specimens D7249/ ... Jet Fuel Resistant Types, for Portland Cement Concrete Pavements D7119/D7119M - 13a Guide for Sampling Spray Polyurethane Foam ... Direct-Injection, Spark-Ignition, Four-Cylinder Engine D8280 - 20a Test Method for Determination of the Blooming of Brominated ...
In 1988 a new block and an improved design of bearing and bearing cap was fitted which solved these issues. The engine's higher ... The direct-injection system meant that only machining of the injector sockets was needed to allow the fitment of spark plugs. ... harder-to-change element type and the fitting of under-piston oil jets. In the mid-1980s Land Rover was part of the Land Rover ... Fuel injection equipment was from CAV, and the engine used Ricardo's Comet swirl chambers, but with Rover-developed dimples to ...
Along the axis of the spacecraft and protruding from the end of the lower cone was a 11 kg (24 lb) solid propellant injection ... The failure was suspected to be due to a turbopump bearing that came loose, causing the liquid oxygen pump to stop. The abrupt ... Jet Propulsion Laboratory, NASA. Archived from the original on 2009-01-31. Retrieved 2009-02-17. Wade, Mark (2008). "Pioneer 0- ...
Near the end of the war, Grumman was given a penicillin injection to combat pneumonia, resulting in a severe reaction that ... Grumman's first venture into jet aircraft, the F9F Panther, became operational in 1949, although the company's most significant ... still bearing his original signature design element, the retractable undercarriage that had been created in 1932. Beginning ... Gulfstream III and Gulfstream IV series of executive turboprop and jet transport. Although his role as chairman became reduced ...
... mid-main jet, main jet) for precise fuel metering throughout the rev range. In 2001 the GS500 was given new bodywork and a 20- ... Pulsed secondary air injection was used to reduce emissions. In addition to dropping the 'E' designation for the GS500, all ... 2 shim-adjusted valves per cylinder and a roller-bearing crankshaft. The GS500E motorcycle appeared in 1979, powered by a ... Starting in 1998 (GS500EW) French models were fitted with Mikuni BSR 34mm carburetors with a three-circuit design (pilot jet, ...
... auxiliary jet streams. Fluid-based jet deflection using secondary fluidic injection. Additional type Nozzles whose upstream ... "F-35B Lightning II Three-Bearing Swivel Nozzle - Code One Magazine". "Variable Vectoring Nozzle For Jet ... AAD uses jet vanes QRSAM uses jet vanes MPATGM uses jet vanes Barak 8 uses jet vanes A-Darter uses jet vanes ASRAAM uses jet ... uses jet vanes HQ-9 uses jet vanes PL-10 (ASR) uses jet vanes MICA (missile) uses jet vanes PARS 3 LR uses jet vanes Aster ...
Gasoline direct injection Gas turbine Heat pump Homogeneous Charge Compression Ignition Hybrid vehicle Indirect injection Jet ... All big end bearings are lubricated this way. A single main bearing may provide oil for 0, 1 or 2 big end bearings. A similar ... SI engines can use a carburetor or fuel injection as port injection or direct injection. Most SI engines have a single spark ... All CI engines use fuel injection, usually direct injection but some engines instead use indirect injection. ...
A test flight has been performed by a Czech jet aircraft completely powered on biodiesel.[29] Other recent jet flights using ... In another study it was found that there is a short injection delay when injecting biodiesel. This injection delay was ... Millettia pinnata, also known as the Pongam Oiltree or Pongamia, is a leguminous, oilseed-bearing tree that has been identified ... "Effect of injection parameters on the combustion and emission characteristics in a common-rail direct injection diesel engine ...
Oxygenate blending adds oxygen-bearing compounds such as MTBE, ETBE, ethanol and biobutanol. The presence of these oxygenates ... In the 1950s oil refineries started to focus on high octane fuels, and then detergents were added to gasoline to clean the jets ... The presence of these degradation products in the fuel tank or fuel lines plus a carburetor or fuel injection components makes ... is dyed to identify its octane rating and to distinguish it from kerosene-based jet fuel, which is clear.[81] In Canada, the ...
... is similar in appearance to the mineraloid jet and is sometimes used as a jet imitation. ... as well as pulverised coal injection (PCI) and direct injection into blast furnaces. They can also be used in water ... Locally called the Coal Region, the deposit contains 480 square miles of coal bearing rock which originally held 22.8 billion ...
305 cu in (5.0 L) throttle body injection V8. 305 cu in (5.0 L) tuned port injection V8. 350 cu in (5.7 L) tuned port injection ... The SD-455 consisted of a strengthened cylinder block that included four-bolt main bearings and added material in various ... When asked about the compromises for the production SD455 engine, McCully responded, "Compression, camshaft, jetting, and ... 305 cu in (5.0 L) throttle body injection V8. 305 cu in (5.0 L) tuned port injection V8. 350 cu in (5.7 L) tuned port injection ...
Oxygenate blending adds oxygen-bearing compounds such as MTBE, ETBE, TAME, TAEE, ethanol and biobutanol. The presence of these ... The development of jet engines burning kerosene-based fuels during WW II for aircraft produced a superior performing propulsion ... The presence of these degradation products in the fuel tank or fuel lines plus a carburetor or fuel injection components makes ... In the 1950s oil refineries started to focus on high octane fuels, and then detergents were added to gasoline to clean the jets ...
1.4 T-Jet MultiAir. I4 1,368 83.5 140 100 140 n/a 230 170 1750 9.2 202 126 2010- ... Bosch injection pump, turbo intercooler 90 (66; 89) at 4,200 rpm 186 (137) at 2,500 rpm ... to support turbocharging it also adopted tri-metallic crankpin and main bearings, sodium-filled valves, bronze valve guides and ... 1.4 T-Jet 16V. I4 1,368 83.5 150 110 150 5500 206 152 2250 8.7 210 130 2008-2010 ...
The crankpin was second in line to the main bearing in oil flow and pressure, with oil having to flow through the main bearing ... 1,960 hp (1,460 kW); 2,345 hp (1,749 kW) with water-methanol injection on take-off: used on Avro Shackleton.[24]. *Griffon 61 ... After helping design the two-stage, two-speed supercharger for the Merlin Lovesey went on to help develop the Rolls-Royce jet ... The forked rod carries a nickel-steel bearing block which accommodates steel-backed lead-bronze-alloy bearing shells. The " ...
Many gas-bearing formations also contain water, which will flow up the wellbore to the surface along with the gas, in both ... The advantages of liquid methane as a jet engine fuel are that it has more specific energy than the standard kerosene mixes do ... Conservation, re-injection, or flaring of natural gas associated with oil is primarily dependent on proximity to markets ( ... Depending on the current market price for jet fuel and LNG, fuel for an LNG-powered aircraft could cost 5,000 rubles (US$100) ...
Organizing the construction and launch of the tanker rockets bearing the new fuel is the responsibility of the propellant ... The boil off from only a few days of delay may not allow sufficient fuel for higher orbit injection, potentially resulting in a ...
Those convicted of capital crimes after March 31, 1998 are always executed by lethal injection; those convicted on or before ... and is hub to passenger airline Delta Air Lines and headquarters of its Delta Private Jets. The airport is one of DHL Aviation' ... her legacy being celebrated at the annual music festival bearing her name. ...
They also deform less under load meaning they have less contact with the bearing retainer walls and can roll faster. In very ... Ceramic forming techniques include throwing, slipcasting, tape casting, freeze-casting, injection moulding, dry pressing, ... jet engine turbine blades, and missile nose cones. Its products are often made from materials other than clay, chosen for their ... An example would be a ceramic bearing coating over a titanium frame used for an aircraft. Recently the field has come to ...
This noise can be reduced somewhat by flame trenches with roofs, by water injection around the jet and by deflecting the jet at ... essentially consists of a steam rocket on a bearing. It was created almost two millennia before the Industrial Revolution but ... effective jet velocity when Pa = Pe A. e. {\displaystyle A_{e}}. = flow area at nozzle exit plane (or the plane where the jet ... Jet damping an effect of the exhaust jet of a rocket that tends to slow a vehicle's rotation speed ...
The crawler also had to pause occasionally so mud could be removed from its treads and bearings. Technicians then quickly ... jets and communications with the ground. The crew also deactivated the Wing Leading Edge System (WLES), stowed the Ku-band ... in depth testing of the external tank with X-ray revealed voids in the foam which might have formed during the injection ...
VIM-VAR steels become bearings for jet engines, rotor shafts for military helicopters, flap actuators for fighter jets, gears ... is mainly done through wall-mounted injection units that combine the oxygen-fuel burners and the oxygen or carbon injection ... a flap actuator on a military jet, or a bearing in a jet engine. ... mounts or fasteners for jet engines, jet tail hooks and other ... Supersonic nozzles enable oxygen jets to penetrate foaming slag and reach the liquid bath. ...
The Development Of Jet And Turbine Aero Engines 4th edition, Bill Gunston 2006, ISBN 0 7509 4477 3, p.217 ... In oil field re-injection of high pressure natural gas to improve oil recovery.[23]. ... These occurrences can damage the rotor seals, rotor bearings, the compressor driver and cycle operation. Most turbomachines are ... Figure 4.2 - Jet engine cross section showing the centrifugal compressor and other parts. ...
For load-bearing applications, CNT powders are mixed with polymers or precursor resins to increase stiffness, strength and ... The degree of lung inflammation caused by injection of well-dispersed SWNTs was insignificant compared with asbestos and with ... Carbon nanotubes can be dissolved in superacids such as fluorosulfuric acid and drawn into fibers in dry jet-wet spinning.[49] ... injection, ingestion and skin contact. CNT forests immobilized in a polymer did not show elevated inflammatory response in rats ...
In some cases, their electricity-insulating properties may also be valuable in bearings. Two drawbacks to ceramic bearings are ... injection molding, dry pressing, and other variations. Details of these processes are described in the two books listed below.[ ... coatings of jet engine turbine blades. *ceramic disk brake. *missile nose cones ... Ceramics can be used in place of steel for ball bearings. Their higher hardness means they are much less susceptible to wear ...
"Jet Propulsion Laboratory. Retrieved August 24, 2008.. *^ a b c Burton, Dan (July 1994). "What will be the effect of the ... Oxygen-bearing molecules such as sulfur dioxide were not detected, to the surprise of astronomers.[23] ... This was thought to be due to synchrotron radiation, caused by the injection of relativistic electrons-electrons with ... "Jet Propulsion Laboratory. Retrieved August 26, 2008.. *^ Noll, K.S.; McGrath, MA; Trafton, LM; Atreya, SK; Caldwell, JJ; ...
Jet Reaction afterburning turbojet Other jet engine motorcycle prototypes exist, but never have been commercialized. Rocket ... Fuel injection and computer engine management systems are now normal on middle range and larger motorcycles and are ... Parallel twins usually have only two main bearings. V-twin In a V-twin engine the cylinders form a "V" around the crankshaft. A ...
A test flight has been performed by a Czech jet aircraft completely powered on biodiesel.[30] Other recent jet flights using ... In another study it was found that there is a short injection delay when injecting biodiesel. This injection delay was ... Millettia pinnata, also known as the Pongam Oiltree or Pongamia, is a leguminous, oilseed-bearing tree that has been identified ... Roy, Murari Mohon (2009). "Effect of Fuel Injection Timing and Injection Pressure on Combustion and Odorous Emissions in DI ...
... main bearings Forged steel 6.625 in (168.3 mm) rods (Ram Air V style) 12:1 compression Mechanical Port Fuel Injection Large- ... Rochester Quadra-jet carburetor with specific jetting. The 1971 455 HO was rated at 335 hp (250 kW) @ 4,800 rpm and 480 lb⋅ft ( ... Factory heavy-duty high-pressure oil pump and eight-quart sump, four-bolt main bearing caps with Moraine aluminum bearings, and ... Like previous generations of Ram Airs, it used Pontiac's special cast-iron "headers". It had 2-bolt main bearing caps in 1969, ...
Police Boats Turkish Type 80 Class Coast Guard Boat Unmanned Naval Vehicle Unmanned Marine Vehicle Water Jet RHIB (JP 24 Jet) ... Bearing Housing, Steering Column for Tanks and Armoured Vehicles Hub And Drum Assembly for Tanks and Armoured Vehicles Ignition ... Seat for Tanks and Armoured Vehicles Pipe Post Pipe Prop Pitman Arms Planet Gear Plastic Injection Parts For Defence Industry ... JETS) Joint Task Force Tactical and Operational Simulation System (MGKMOS) Laser Based Combat Training System Laser ...
General Motors began investigating the use of fuel injection on the Turbo-Air engine on 11 August 1962. A mechanical injection ... To prevent the engine from running too lean a metering rod and jet were selected that supplied an over-rich mixture when at ... The assembled crankcase provides for four main bearings. There are four cylinder head studs per cylinder, for a total of twelve ... come equipped with Air Injection Reactors (AIR). The system includes an air-injection pump and tubes, two mixture control ...
"EFDA-JET". EFDA. 2009. Archived from the original on 23 July 2009. Retrieved 29 May 2009. "Tore Supra". CEA. Archived from the ... neutral beam injections and vacuum pumping. Remote handling is made necessary by the radioactive interior of the reactor ... experimental blanket modules will be used to test breeding tritium for fuel from lithium-bearing ceramic pebbles contained ... This compares to the current fusion record achieved by JET's when it injected 24MW of heating energy to create a fusion energy ...
On July 27, 2002, a Sukhoi Su-27 fighter jet crashed at an air show in Ukraine, killing 77 and injuring 543, making it the ... T-shirts bearing the name of emo music groups and long side-swept bangs, often covering one or both eyes. The Scene subculture ... a Botox injection, consisting of a small dose of Botulinum toxin, can be used to prevent development of wrinkles by paralyzing ... On September 29, 2006, Gol Transportes Aéreos Flight 1907 collided with a new Embraer Legacy 600 business jet over the ...
pp.53-4. Taylor, Douglas R. Boxkite to Jet: The Remarkable Career of Frank B. Halford. Rolls-Royce Heritage Trust. 1999. ISBN 1 ... In 1948 it introduced the Blackburn Cirrus Bombardier with fuel injection and a higher compression ratio, giving increased ... and a new five-bearing crankshaft and cast crankcase were designed. Developing 60 horsepower (45 kW) in normal flight it became ... Blackburn Cirrus Bombardier (1948). Fuel injection. List from Lumsden except where noted. The list includes trial installations ...
The 400 is the only engine that uses a 2.65 in (67.3 mm) main bearing journal and a 2.1 in (53.3 mm) rod bearing journal. The ... The L83 added "Cross-Fire" fuel injection (twin throttle-body fuel injection). Years: 1985-1992 The new 1985 L98 350 added ... It used a Rochester "4MV" Quadra-Jet 4-barrel carburetor and a L48 camshaft. In 1971, power decreased to 270 hp (201 kW) (gross ... throttle-body injection) fuel injection. 1996 - The cylinder heads were redesigned, using improved ports and combustion ...
we mainly supplier all kinds of second hand plastic injection moulding machines,brand of taiwan,hongkong,japan,china,etc.with ... Pulse-Jet Bag Filter Dust Coll. More Products Tradehub Gallery. Thrust Ball Bearings. ... we mainly supplier all kinds of second hand plastic injection moulding machines,brand of taiwan,hongkong,japan,china,etc.with ...
Jetting or bad crank seal? GSjimmy replied to standbyguy13s topic in Motorcycle Jetting & Fuel Injection ... Its seals, time to tear it down and do the bearings & seals on the crank. Check the other internals while your there just to ... Then jetting will also be very close. Are you thinking of the Big Bore kit? I just assembled the long block on my XR95 last ... Runner volume also comes into play in regard to jetting. I think you would be miles ahead using an XR/XL 125 carb. Same ...
Plastic Injection Components Product, Taiwan , Plastic Injection Components Product, Hong Kong, India, Indonesia, Japan, Korea ... Plastic Injection Components, Trade Asia - The e-Marketplace for Buyers and Suppliers, Asian Manufacturer & Supplier, China ... 7 Ton Single Center Bearing.... * Stamping Hardware.... * Head of Water Jet.... * Transition Teeth... ... Plastic Injection Components Manufacturers & , Plastic Injection Components Suppliers. Worldwide. China. Hong Kong. India. ...
Jet pump hold-down beams/wedges have been identified as an in-core source of cobalt at some plants. Unfortunately, Unit 1 was ... not able to change the wedges to non-cobalt-bearing material.. *Iron injection may have been useful to assist with "sticking" ... Replaced Stellite Surfaces. A total of 78 valves were replaced with non-Stellite trim or non-cobalt-bearing hardfacing. The HIT ... Clearly, one of the best methods for reducing the source term for radioactive cobalt is to reduce cobalt-bearing materials. The ...
Engine is brand new everything... every bearing, new crank rebuilt, wiseco piston 66.4mm carb hoses are new and in good shape ...
Reed Valves and Petals Carburetor Accessories Jets Fuel System Air Filters Tuning Air Filter Foam and Air Boxes Injection ... Spare Parts Spark Plugs Cooling System Cables Gaskets Bearings and Oil Seals Nuts and Bolts Pumps Other Spare Parts Starter ... Spare Parts Spark Plugs Cooling System Cables Gaskets Bearings and Oil Seals Nuts and Bolts Pumps Other Spare Parts Starter ... Spare Parts Spark Plugs Cooling System Cables Gaskets Bearings and Oil Seals Nuts and Bolts Pumps Other Spare Parts Ignition ...
RPI Jet Hot Coated Headers​. Snow Performance Water / Methanol Injection System.​. 10.1:1 Low Compression 5.1L Engine Build / ... The consensus view seems to suggest BE rod bearings + ARP headbolts when replaceing OEM. Are BE rod bearings a permanent ... Snow Performance Water / Methanol Injection System.​. 10.1:1 Low Compression 5.1L Engine Build / Mahle Custom Pistons / ... Snow Performance Water / Methanol Injection System.​. 10.1:1 Low Compression 5.1L Engine Build / Mahle Custom Pistons / ...
RPI Jet Hot Coated Headers​. Snow Performance Water / Methanol Injection System.​. 10.1:1 Low Compression 5.1L Engine Build / ... Mahle Custom Pistons / Carrillo Rods / Custom Fuel System / Custom Rod Bearings.​. KW V3 Coilovers​ ...
Soon after the war, the manufacture of fuel injection pumps, jets and roller bearings for freight vehicle transport was ... Also during the war Germany built factories in Czechoslovakia to make the Messerschmitt Me 262 jet fighter. The factories ...
... news items about AST Bearings, and companies related to AST Bearings from the buyers guide ... Articles from Power Transmission Engineering related to AST Bearings, ... oil-jet lubrication is more uniform than single-point injection. ... 141 Sleeve Bearings or Tilting Pad Bearings - Ask the Expert ( ... News Items About AST Bearings. 1 AST Bearings Introduces New Tapered Roller Bearing Line (April 29, 2006). AST Bearings ...
Using Pilot Diesel Injection in a Natural Gas Fueled HCCI Engine. 2002-10-21 ... The computational domain includes the positive displacement gear pump, the pressure regulation valve, bearings, piston pins, ... piston cooling jets, the oil cooler, the oil filter etc… The motion of the regulation valve was predicted by strongly coupling ... Tracer Fuel Injection Studies on Exhaust Port Hydrocarbon Oxidation. 1998-10-19 ...
Patented by SKF in the 1940s, the SKF Oil injection method facilitates mounting and dismounting of gears and bearings. When ... SKF SEAL JET DD - Machined Seals. Vehicle aftermarket. Distributor category *. All categories. SKF Authorized Distributor. SKF ... SKF Oil Injection Method Modify components and equipment for even easier mounting. ... Bearings, Units, and Housings. Lubrication Systems. Power Transmission. Power Transmission Seals - CR Seals. Services ( ...
... is carried in a single roller-bearing and isdescribed as having an elastic-toothed coupling to the main drive shaft.The jet- ... Water-methanol injection and after-burning are provided for in the design. Fuel is fed by a high-pressure gear-type pump ... It has been suggested that a jet-assisted glider such as this might well prove useful for training fighter pilots, its handling ... example of which with jet unit mounted on its back is a feature of the Paris Salon. On full power it is esti- mated that the ...
Since the bearing results are essential for the pre-layout of the cranktrain, the conclusion on the bearing safety should be ... The strategy consisted of port fuel injection of gasoline and direct injection of the same gasoline doped with a small volume ... and five current synthetic Fischer-Tropsch diesel and jet fuels. The synthetic diesel and jet fuels showed reasonable ... In the frame of this study a prediction methodology, based on a HD bearing approach, for bearing reliability of inline-4 ...
Jet Drives. Personal watercraft (PWC) and other boats with jet drives need to be winterized, too. Because there are so many ... Any water present in the gear case, for example, will sit on steel shafts and bearings over the winter, coating them with rust. ... With the engine running, inject fogging oil through the carburetors or electronic fuel injection (EFI) system air intakes in ... Residual acids and moisture left in the crankcase over the winter can pit bearings and other vital engine parts, so it is ...
1. Preparation of CAR-T Cells and Injection into Tumor-Bearing Mice. The purpose of this study was to evaluate the efficacy of ... A transfer vector, such as the pCDH-EF1-MCS vector, can be used with a suitable promoter such as the JeT promoter or the EF1 ... Furthermore, constructs bearing the N6 co-stimulatory domain matched or exceeded the activity of a CAR T construct with the 4- ... In all vectors, CAR expression was driven by the JeT promoter. Each CAR donor template was flanked by 5′ and 3′ homology arms, ...
Water Diesel Emulsion With High Injection Press 1276. VVT-I 1272. WATER JET TECHNOLOGY AS ADVANCED MANUFACTURING PROCESS 1279. ... Air Bearing Next Generation Bearings 98. Alternate Fuel Cells for Automobiles 115.A Noise & Emission Controller 147. Antiroll ... Latest in hitech petrol fuel injection GDI (Gasoline direct Injection) 670. Macromolecular Hydrodynamics 700. Low Cost ... Different Types Of Injection Systems And Emission 354. D-M-A-I-C MODEL IN SIX SIGMA 367. Design. Dendritic Solidification Using ...
CHAPTER FOURTEEN / JET DRIVES. Maintenance / Water pump / Jet drive / Bearing housing / Intake housing liner / Specifications. ... CHAPTER ELEVEN / OIL INJECTION SYSTEMS. Accumix oil injection / OMC variable ratio oiling (VRO) system / Specifications. ... Evinrude/Johnson 65 Jet (1991-1994) Evinrude/Johnson 70 HP (1991-1994) Evinrude/Johnson 80 Jet (1991-1994) Evinrude/Johnson 85 ... 65 jet, 80 Jet, 1.6 Sea Drive and 85-115 hp (90º V4 cross flow models) / 2.0 Sea Drive, 120 and 140 hp (90º V4 loop charge ...
Secondary Injection TVC. Secondary injection TVC is accomplished by injecting fluid (liquid or gas) into the main exhaust ... Fluid Bearing Load Carrying System. The fluid bearing separates fixed sections from movable sections of the nozzle. ... Devices used in this method include jet vanes, jetavators, and jet tabs. ... Jet Tab. Insertion of the tab creates increased pressure within the exit cone. The diverted force acts to vector the exhaust ...
Secondary Injection TVC. Secondary injection TVC is accomplished by injecting fluid (liquid or gas) into the main exhaust ... Fluid Bearing Load Carrying System. The fluid bearing separates fixed sections from movable sections of the nozzle. ... Devices used in this method include jet vanes, jetavators, and jet tabs. ... Jet Tab. Insertion of the tab creates increased pressure within the exit cone. The diverted force acts to vector the exhaust ...
Platelet Rich Plasma and Amniotic Injections. Platelet-rich plasma and amniotic injections are used to bring the patients own ... The beauty of the procedure is that the water jet is not strong enough to break up the good fascia but strong enough to break ... Weight-bearing lower extremity CTs: state of the art diagnostic test available at UFAI - October 12, 2020 ... The Tenjet system releases a high-power water jet into the region of the plantar fascia scar tissue and damage. The system is ...
Seals - SKF SEAL JET DD. Services (Consultancy, Maintenance). Vehicle aftermarket. Distributor category *. All categories. SKF ... Bearings, Units, and Housings. Condition monitoring. Electric Motor specialist. Linear motion. Lubrication Solutions. ... Oil injection systems SKF Coupling Systems develops, produces and sells products and solutions based on the oil injection ... The oil injection method is well known today, and has been in use for more than seventy years. It is used for all kinds of ...
In addition the paper gives mathematical models for oil flows through piston cooling jets and plain journal bearings - fully ... a four cylinder high speed direct injection (HSDI) diesel engine for passenger car applications. The paper gives design methods ... oil flow through bearings in the cylinder head and cylinder block and piston cooling jets as well as calculating parasitic ... grooved, partially grooved and plain bearings with a single oil hole feed. Methods presented can be used to design lubrication ...
Injection system. The EcoDiesel V-6 features Fiats MultiJet II common-rail fuel-injection system with 29,000-psi (2,000-bar) ... The engines aluminum cylinder heads are heat-treated and feature individual bearing caps that help reduce friction and NVH. ... These pistons, which benefit from cooling oil jets, reduce reciprocating mass inside the engine for enhanced efficiency and ... Most likely, it is the hardware of the injection system that limits the maximum pressure. Even if you can "program" a higher ...
... particularly to a box-raft pressure-bearing type foundation underpinning and construction reinforcing method for tunnels across ... Number in the figure: 1 is high-pressure rotary jet grouting pile, 2 gravity barricades, and 3 is H shaped steel, 4 is interior ... little tooth mouth connects.The bilateral symmetry injection after having beaten one section, is done at steel sheet pile 12 ... Box-raft pressure-bearing type foundation underpinning and construction reinforcing method for tunnel across pile foundation of ...
Injection device US6309371B1 (en) 1998-07-27. 2001-10-30. Medi-Jet Corporation. Injection-assisting probe for medical injector ... This is preferably in the form of a cantilever spring formed as part of the sliding sleeve and bearing on a surface of the ... Pre-filled medical jet injection device seal WO2007088112A1 (en) * 2006-01-31. 2007-08-09. Novo Nordisk A/S. Seal for a ... Medi-Jet Corporation. Injection-assisting probe for medical injector assembly US7108675B2 (en) 1998-07-27. 2006-09-19. Antares ...
Mechanical Engineer Machinery, Engineer, Jet Engines, Metal Failure Analysis, Pumps, Machine Safety, Plant Operations, Bearings ... Injection Molding Engineer, Moulding, Plastic Products, All Processes, Medical Instrumentation, Medical Devices,Plastic ... Bearings, Shaft Failure, Motor Shaft Misalignment, Coupling Failure, Motor Foundations, Vibration, Motor Maintenance, ASD VFD ...
Fuel delivery: direct injection and electronic throttle control direct high-pressure fuel injection. Compression ratio: 11.2:1 ... Pistons with jet-spray cooling. -Rotocast 356T aluminum cylinder head. -Sodium-filled exhaust valves. -Dual Overhead Camshaft ... Cast iron bearing cap inserts in an aluminum bedplate. -Integrated sound cover on the intake manifold. -Structural engine ... Direct injection with cam-driven high-pressure fuel pump. -Two-stage variable-displacement oil pump. -Air-to-air intercooling ...
A system is provided that is useful for a hypodermic jet injection of medication without piercing the skin with a needle. The ... of the injection device, thus forcing the piston 230 towards the back end of the channel until the pistons bearing flange 232 ... hypodermic jet injector Abstract. A system is provided that is useful for a hypodermic jet injection of medication without ... However, due to the dynamics of jet injection in which the ampule is subjected to very high pressures during the injection ...
  • Last time on the carb I sprayed carb cleaner through the carb jets & all passages. (
  • With fuel injection the car meters the exshausts and adjusts the injecters, with a carb you'd need to rejet for each mixture. (
  • An updated version with central-point electronic fuel injection was installed in Mirages and Lancers from 1986 on. (
  • Electronic Fuel Injection (EFI): Computer-controlled, electronic fuel injection system automatically adjusts fuel flow and ignition timing for quick throttle response, maximum acceleration, and improved fuel efficiency. (
  • The penetration of dirt into the pressure roller bearing is optimally prevented by a well thought-out construction of lip seals and dust caps. (
  • In addition the paper gives mathematical models for oil flows through piston cooling jets and plain journal bearings - fully grooved, partially grooved and plain bearings with a single oil hole feed. (
  • Methods presented can be used to design lubrication systems for optimum and practical specification of oil pump size, pressure relief valves, by-pass filtration, gallery sizes, oil flow through bearings in the cylinder head and cylinder block and piston cooling jets as well as calculating parasitic losses in the engine due to hydrodynamic pumping. (
  • All ECOTEC blocks are cast with passages for piston-cooling jets and an oil cooler for high-output turbocharged applications. (
  • Soon after the war, the manufacture of fuel injection pumps, jets and roller bearings for freight vehicle transport was implemented in Avia. (
  • however, if you already own a 2017 TC125 and have spent time and money working on your suspension and jetting, the added cost of stepping up to the new bike would be better spent on new pistons and rings for your old bike. (
  • At its core, the 2018 Husqvarna is the 2017 TC125 without the horrible jetting. (
  • Lubrication plays a vital role in the performance and life of rolling element bearings, yet its significance is often underestimated. (
  • Through the years, fatigue surfaceâ "originated failures, resulting from reduced lubrication or contamination, have been incorporated into the estimation of the bearing life by applying a penalty to the overall equivalent stress of the rolling contact. (
  • Methods for the design and analysis of engine lubrication systems have been developed and illustrated in a case study - a four cylinder high speed direct injection (HSDI) diesel engine for passenger car applications. (
  • The purpose of bearing lubrication is to prevent direct metallic contact between the rolling elements, raceway and cages. (
  • The lubrication method for bearings can be divided into grease lubrication and oil lubrication. (
  • A water lubrication type bearing material contains 12 wt. (
  • Abrasive Water Jet 33. (
  • The abrasive water jet (AWJ) cutting method has been used widely for the cutting and processing of materials because of its cool, damage-free, and precise cutting technique. (
  • Clearly, one of the best methods for reducing the source term for radioactive cobalt is to reduce cobalt-bearing materials. (
  • The strategy consisted of port fuel injection of gasoline and direct injection of the same gasoline doped with a small volume percent addition of DTBP. (
  • The single fuel results with DTBP were compared to previous high-thermal efficiency, low-emissions results with port injection of gasoline and direct injections of diesel. (
  • The design of the intake manifold eliminates the need for variable-length intake runners and consideration has been made for conversion to gasoline direct-injection. (
  • 10.1:1 Low Compression 5.1L Engine Build / Mahle Custom Pistons / Carrillo Rods / Custom Fuel System / Custom Rod Bearings. (
  • These pistons, which benefit from cooling oil jets, reduce reciprocating mass inside the engine for enhanced efficiency and performance feel. (
  • Bearing friction models, the Guzzomi models from University of Western Australia calculating crank train friction to optimise all the possible attributes that can be controlled, phasing, throttle, injection timings, ignition, air fuel ratio/burn rate, combustion mode. (
  • Yamaha Engine Management System (Y.E.M.S.): An integrated, computerized management system that controls and adjusts such functions as ignition timing, fuel injection mapping, engine diagnostics and off-throttle steering. (
  • The conversion engine will need to be fitted with Dual Carburetors, or a Fuel injection system that uses twin throttle bodies with hex bar linkage. (
  • This study examined the effects of daily intermittent whole-body vibration and weight bearing during hindlimb suspension on capillary number and muscle atrophy in rat skeletal muscles. (
  • Sixty male Wistar rats were randomly divided into four groups: control (CONT), hindlimb suspension (HS), HS + weight bearing (WB), and HS + whole-body vibration (VIB) (n = 15 each). (
  • Our results suggest that weight bearing with or without vibration is effective for disuse-derived disturbance by preventing muscle atrophy, and whole-body vibration exercise has an additional benefit of maintaining microcirculation of skeletal muscle. (
  • In HS + WB group, suspension was interrupted for 20 min/day, allowing weight bearing. (
  • Treating weak saturated soil foundation by drainage powder jetting pile foundation can not only increase the bearing capacity of the foundation but also accelerate the drainage and consolidation process of the foundation. (
  • It adopts reasonable boundary conditions and foundation seepage conditions and the method of pile-soil composite modulus and obtains the expression of the average excess pore water pressure of the composite foundation of the instantaneous loading of the drainage powder jetting pile under the simplified model. (
  • For the purpose of meeting the bearing capacity and deformation requirements during the construction and use period of the project, the combined composite foundation treatment technology (the combined treatment technology of vertical drainage body and cement soil mixing pile) has been widely used [ 3 - 5 ]. (
  • There are still many shortcomings in terms of theoretical calculation although this new combined composite foundation treatment technology can satisfy the requirements of foundation bearing capacity and accelerate the consolidation process of foundation soil. (
  • contacting said molecules with xanthanase enzyme complex produced by a soil bacterium bearing the ATCC No. 55941 under conditions such that at least a portion of said molecules are degraded. (
  • A system is provided that is useful for a hypodermic jet injection of medication without piercing the skin with a needle. (
  • Using a special no-needle 'freezing' technique called jet injection, the doctor numbs the area. (
  • The anaesthetic (freezing) technique causes less discomfort because a needle is not necessary and the numbing effect with jet injection is more profound. (
  • Based on research by Professor Ian Hunter, the startup Portal Instruments will collaborate with Takeda Pharmaceuticals to produce a smart, needle-free drug injection device. (
  • Snow Performance Water / Methanol Injection System. (
  • The EcoDiesel V-6 features Fiat's MultiJet II common-rail fuel-injection system with 29,000-psi (2,000-bar) of line pressure. (
  • Those with the later, cleaner yet, "MCA-Jet" system were called G32B. (
  • Arborjet's FSeries micro-infusion system is the most advanced injection method ever developed. (
  • This is the first ever 120 PSI injection system. (
  • Arborjet's most versatile injection system. (
  • These jets are zero-mass-flux and are synthesized from the working fluid in the flow system in which they are embedded. (
  • Although there is no net mass injection, the jets provide for momentum transfer into the flow system to be controlled. (
  • The turbine is carried in a single roller-bearing and isdescribed as having an elastic-toothed coupling to the main drive shaft.The jet-nozz!e area is variable, the inner cone moving under automatic control to take full advantage of the attainablethrust under varying conditions. (
  • The main benefit is that the treatment is fairly simple and does not involve injection or internal treatment. (
  • The jets have been cleaned - putting a 118 main in doesn't really change the behavior much. (
  • The engine has five main bearings. (
  • The engine has five main bearings, a cross flow head and a single down draught carburetor. (
  • Introduction and General Notes Principles The sub-base layer is often the main load-bearing layer of a pavement. (
  • The main mixture control is the jet inside the by-pass container, the #4 By-Pass Valve. (
  • Extra-thick main bearings resist the differential thermal expansion of the nodular iron crank and aluminum block. (
  • High-pressure water jets are classified into two main types: pure water jets and abrasive water jets (AWJ). (
  • The forged crank is held in place by six-bolt main bearings, four down and two at right angles on the sides of the block-like a proper race engine. (
  • Primary air is fed through the burners while secondary airjets from concentric rings of slits placed a few inches beyond the burners continue the mixing and combustion process.There are two starting jets and two igniter plugs. (
  • High-dispersion nozzles and a new servo-valve enable fuel-injection events that occur with greater precision up to eight times per cylinder cycle for clean, smooth combustion. (
  • Being an Australian I was happy to find that the evolution of HAJI now called TJI was perfect, combined with the high compression ratio one can use Homogenuous Ultra Lean combustion at full load, a mild intensified mode using internal egr for the mid range and JACI, Jet Assisted CI for the low load as the dynamic compression ratio from phasing caused this anyway. (
  • They are adapted to a variety of reservoir pressure conditions and of oil types, including heavy oil produced by sequential "huff and puff" steam injection. (
  • The heaters are shaped such that they can conform to all or part of an object, e.g., an injection mold. (
  • The engine's aluminum cylinder heads are heat-treated and feature individual bearing caps that help reduce friction and NVH. (
  • Alternatives include pentosan polysulphate injections and glycosaminoglycan (GAG) joint supplements. (
  • Macromolecular drugs can be delivered with painless, patient-friendly alternatives to injections. (
  • This article focuses on some key developments in the field of drug delivery, especially those that deal with the development of painless, patient-friendly alternatives to injections for the delivery of macromolecules (Figure 1). (
  • Fruit-bearing trees have been planted, and hiking/snowshoeing trails have been blazed on a neighboring 40-acre parcel of forested land. (
  • In addition to the fuel filter, a safety screen is also incorporated into each of the individual injection nozzles to catch any stray particles of dirt. (
  • Features one-thumb switch operation, precise dose measuring & air-powered injection in a rugged aluminum body weighing less than 2 pounds. (
  • In either case, when these fans are supported by hydrodynamic bearings, it is the oil film thickness developed from the bearing-shaft interaction that limits the minimum speed that can be maintained without causing premature wear and bearing failure. (
  • This will make it possible to find new and creative solutions in the shaft line and to take advantage of the time-saving SKF oil injection technology in areas where it previously has been impossible. (
  • Use of the OK coupling in shaft connections exploits the potential of oil injection technology. (
  • If your beetle is a 1968-70 you will only need 3 later model pieces (release bearing, clutch cross shaft, and a release bearing guide, all of which we sell in a kit just for this) to bolt the TIV engine to your current gearbox. (
  • Patented by SKF in the 1940s, the SKF Oil injection method facilitates mounting and dismounting of gears and bearings. (
  • SKF Coupling Systems develops, produces and sells products and solutions based on the oil injection method. (
  • Our business concept is to develop, produce and sell products based on the SKF oil injection method. (
  • The history of the SKF Coupling Systems dates from the early 1940s when SKF´s chief designer, Erland Bratt, invented the SKF oil injection method in 1942. (
  • The oil injection method is well known today, and has been in use for more than seventy years. (
  • Operations that one tool hours or even days have been reduced to a few rapidly performed steps using the SKF oil injection method for mounting, dismounting and joining heavy components. (
  • In 1970, the water jet method began to be used in industry to machine materials in non-traditional machining operations. (
  • The injector includes a spring actuated piston which provides a force to move the ampule assembly plunger and thereby force liquid medication to leave the chamber at such velocity that it can be hypodermically injected at an injection site. (
  • Jet Grouting has three traditional systems which differ by application and desired physical characteristics of the soilcrete. (
  • Ari Glezer of the Georgia Institute of Technology described his novel approach to the manipulation and control of shear flows using fluidic technology based on synthetic jets. (
  • These attributes enable synthetic-jet control systems to effect significant global modification of embedding flows on scales one to two orders of magnitude larger than the characteristic length scale of the jets. (
  • A lubricant that is designed for specific operating conditions will provide a load bearing wear protective film. (
  • For example, the ball to raceway conformity, the radial play, and the number of balls all impact the ability of a ball bearing to support loads under a variety of conditions. (
  • Subjects covered are synchronizing multiple carburetor setups, jetting for different conditions and introduction to fuel injection. (
  • Do not hesitate to use other jet sizes when conditions warrant. (
  • The engine is under single-lever control, speed and gas temperature being maintained at theiroptimum values by control of fuel supply and jet-nozzle area. (
  • Residual acids and moisture left in the crankcase over the winter can pit bearings and other vital engine parts, so it is important to change the oil just before laying up the boat. (
  • Small engine mechanics repair and service power equipment ranging from jet skis to chainsaws. (
  • The GP1300R hull is reinforced at critical load bearing areas for durability and strength. (
  • To increase the power and cutting efficiency of water jets, Siores et al. (
  • To receive price quotation for your special plastic injection mould products, please send your sketch, drawing, specifications or samples for reference. (
  • At first glance, ball bearings are relatively simple mechanisms. (
  • Various cutting models using water jet and AWJ cutting mechanisms have been developed. (
  • 21 studied the effects of increasing the pressure of water jets to ultra-high levels, while others 22,23,24,25,26,27 investigated improving the quality of the cut surfaces. (
  • Potential applications of fluidic technology based on synthetic jets include jet mixing and thrust management, and modification of aerodynamic surfaces. (
  • During the past three decades there has been an evolution in the advancement and use of highly engineered plastics in bearing applications. (
  • 16 made a technical and economical evaluation of water jet cutting applications. (
  • This is especially true if you opt for our deluxe kit with all new TI cooling parts and our water-jet cut sheet aluminum airsealing kit. (
  • Having been commonly used in engineering, the plum blossom pile layout scheme is based on the foundation axisymmetric consolidation model (the powder jetting pile is the model center and the drainage board is located at the outer boundary of the model). (
  • Often the treatment requires shoe modifications to a stiffer and stronger sole, added arch support or custom orthotics, gentle stretching and anti-inflammatory treatments such as physical therapy or cortisone injection therapy. (
  • With the help of the easy to use prodcuts included in the QUIK-jet Kit, professionally applied Arborjet injection treatments are a breeze. (
  • The process consists of the direct pressure injection of a liquefied grout (usually containing microfine cement) into voids, cracks, fractures, cavities, or even between a bearing media and a structure, foundation or bearing walls. (
  • Hagan 5 investigated the cuttability of rocks using high-pressure water jets and reported that water pressure had the greatest impact on the level of surface damage to the rock, although traverse speed was found to also alter the magnitude of the surface damage. (
  • This example shows where injection of light material into a prior dark vein suggests high fluid pressure. (
  • In this course the student will learn how to do basic maintenance and adjustments to accessories such as blade sharpening, mower deck adjustment, cable adjustment, safety switch operation, and belt pulley and bearing replacement. (
  • For this, the injection strategy is the most direct mean of controlling the heat release profile and fuel air mixture. (
  • DEACON INJECTION GUN #1700 is an injection gun with a floating piston design and foot operated trigger at pump (100 PSI, 10 CFM Air). (
  • we mainly supplier all kinds of second hand plastic injection moulding machines,brand of taiwan,hongkong,japan,china,etc.with tonage of 50-1000t,we can offer best price with very good condition of machines year of 1995-2010. (
  • As a professional plastic injection mould supplier. (
  • We can offer customized plastic injection components like LCD TV shelf, light guide plate, stamper outer casing, electric tool outer casing, digital video outer(DV) casing, color and 2-color plastic injection mould. (
  • Head of Water Jet. (
  • Water-methanol injection and after-burning are provided for in the design. (
  • Aquamist (Water injection) questions and answers here. (
  • I always thought there was some kinda pattern in the jet that made the water mist better? (
  • The history of water jets extends back to the discovery of the erosional effect of water streams in nature. (
  • As mentioned by Summers 1 , the first attempts to use water jets for cutting were carried out in California, USA, in 1852 to abrade gold-bearing rock. (
  • The basic difference between these two types is the addition of an abrasive medium in AWJ to increase the cutting ability of the water jet. (
  • Water jet cutting studies were focused first on coal cutting in the mining industry, and then researchers started to investigate the use of continuous and discontinuous water jets in the cutting of rocks. (
  • and Chermensky 4 focused on rock breakage rather than rock cutting by pulsed water jets, which was an improved use of water jets. (
  • The addition of an abrasive agent made the water jets more powerful. (
  • The use of abrasive-containing water jets for the drilling, cutting and excavating of rocks has been investigated by a number of researchers. (
  • 15 studied water jet cutting of black granite and suggested a fuzzy-based approach for process parameter selection. (
  • Compact and simple to install, the sintered aerator pad provides a jet of compressed gas into the bridged product, locally fluidising the product, encouraging it to flow. (
  • In addition, near the surface from which it is generated, interaction of a synthetic jet with an embedding flow results in formation of closed recirculation regimes, with an apparent modification of the surface shape. (
  • It's innovative design combines simplicity & power providing a lightweight, easy-to-use injection tool that maximizes productivity & reduces labor time. (
  • OEMs often overlook a simple solution that can have a positive, long-term impact on profitability for themselves and their customers, i.e. â " the elimination of bearing lubricant. (
  • Our range extends from the simple H-Series bin discharge version, through to the easy clean hygienic K-Series with its injection-moulded diaphragm. (