Seawater: The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.Aortic Valve: The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.Mitral Valve: The valve between the left atrium and left ventricle of the heart.Heart Valve Diseases: Pathological conditions involving any of the various HEART VALVES and the associated structures (PAPILLARY MUSCLES and CHORDAE TENDINEAE).Aortic Valve Stenosis: A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.Pulmonary Valve: A valve situated at the entrance to the pulmonary trunk from the right ventricle.Tricuspid Valve: The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.Aortic Valve Insufficiency: 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).Mitral Valve Insufficiency: 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.Mitral Valve Prolapse: Abnormal protrusion or billowing of one or both of the leaflets of MITRAL VALVE into the LEFT ATRIUM during SYSTOLE. This allows the backflow of blood into left atrium leading to MITRAL VALVE INSUFFICIENCY; SYSTOLIC MURMURS; or CARDIAC ARRHYTHMIA.Venous Valves: Flaps within the VEINS that allow the blood to flow only in one direction. They are usually in the medium size veins that carry blood to the heart against gravity.Mitral Valve Stenosis: Narrowing of the passage through the MITRAL VALVE due to FIBROSIS, and CALCINOSIS in the leaflets and chordal areas. This elevates the left atrial pressure which, in turn, raises pulmonary venous and capillary pressure leading to bouts of DYSPNEA and TACHYCARDIA during physical exertion. RHEUMATIC FEVER is its primary cause.Gills: Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.Bioprosthesis: Prosthesis, usually heart valve, composed of biological material and whose durability depends upon the stability of the material after pretreatment, rather than regeneration by host cell ingrowth. Durability is achieved 1, mechanically by the interposition of a cloth, usually polytetrafluoroethylene, between the host and the graft, and 2, chemically by stabilization of the tissue by intermolecular linking, usually with glutaraldehyde, after removal of antigenic components, or the use of reconstituted and restructured biopolymers.Water Microbiology: The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.Tricuspid Valve Insufficiency: Backflow of blood from the RIGHT VENTRICLE into the RIGHT ATRIUM due to imperfect closure of the TRICUSPID VALVE.Mitral Valve Annuloplasty: A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annulus of the MITRAL VALVE. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.Ostreidae: A family of marine mollusks in the class BIVALVIA, commonly known as oysters. They have a rough irregular shell closed by a single adductor muscle.Cardiac Valve Annuloplasty: A type of heart valve surgery that involves the repair, replacement, or reconstruction of the annuli of HEART VALVES. It includes shortening the circumference of the annulus to improve valve closing capacity and reinforcing the annulus as a step in more complex valve repairs.Fresh Water: Water containing no significant amounts of salts, such as water from RIVERS and LAKES.Marine Biology: The study of the origin, structure, development, growth, function, genetics, and reproduction of organisms which inhabit the OCEANS AND SEAS.Pulmonary Valve Stenosis: The pathologic narrowing of the orifice of the PULMONARY VALVE. This lesion restricts blood outflow from the RIGHT VENTRICLE to the PULMONARY ARTERY. When the trileaflet valve is fused into an imperforate membrane, the blockage is complete.Endocarditis, Bacterial: Inflammation of the ENDOCARDIUM caused by BACTERIA that entered the bloodstream. The strains of bacteria vary with predisposing factors, such as CONGENITAL HEART DEFECTS; HEART VALVE DISEASES; HEART VALVE PROSTHESIS IMPLANTATION; or intravenous drug use.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.Endocarditis: Inflammation of the inner lining of the heart (ENDOCARDIUM), the continuous membrane lining the four chambers and HEART VALVES. It is often caused by microorganisms including bacteria, viruses, fungi, and rickettsiae. Left untreated, endocarditis can damage heart valves and become life-threatening.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Salinity: Degree of saltiness, which is largely the OSMOLAR CONCENTRATION of SODIUM CHLORIDE plus any other SALTS present. It is an ecological factor of considerable importance, influencing the types of organisms that live in an ENVIRONMENT.Vibrio: A genus of VIBRIONACEAE, made up of short, slightly curved, motile, gram-negative rods. Various species produce cholera and other gastrointestinal disorders as well as abortion in sheep and cattle.Oceans and Seas: A great expanse of continuous bodies of salt water which together cover more than 70 percent of the earth's surface. Seas may be partially or entirely enclosed by land, and are smaller than the five oceans (Atlantic, Pacific, Indian, Arctic, and Antarctic).Acclimatization: Adaptation to a new environment or to a change in the old.Gammaproteobacteria: A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.Base Composition: The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.Prosthesis Design: The plan and delineation of prostheses in general or a specific prosthesis.Bivalvia: A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.Rhodobacteraceae: A family in the order Rhodobacterales, class ALPHAPROTEOBACTERIA.Fundulidae: Family of small, surface-dwelling fish that inhabit fresh and brackish waters, and coastal marine areas.Cardiac Catheterization: Procedures in which placement of CARDIAC CATHETERS is performed for therapeutic or diagnostic procedures.Flavobacteriaceae: A family of bacteria in the order Sphingobacteriales, class Sphingobacteria. They are gram-negative rods, mostly saprophytic in terrestrial and aquatic habitats.Anthozoa: A class in the phylum CNIDARIA, comprised mostly of corals and anemones. All members occur only as polyps; the medusa stage is completely absent.Chordae Tendineae: The tendinous cords that connect each cusp of the two atrioventricular HEART VALVES to appropriate PAPILLARY MUSCLES in the HEART VENTRICLES, preventing the valves from reversing themselves when the ventricles contract.Echocardiography, Transesophageal: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.AnguillaPacific OceanCalcium Carbonate: Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement.DNA, Bacterial: Deoxyribonucleic acid that makes up the genetic material of bacteria.Calcinosis: Pathologic deposition of calcium salts in tissues.Eels: Common name for an order (Anguilliformes) of voracious, elongate, snakelike teleost fishes.Water-Electrolyte Balance: The balance of fluid in the BODY FLUID COMPARTMENTS; total BODY WATER; BLOOD VOLUME; EXTRACELLULAR SPACE; INTRACELLULAR SPACE, maintained by processes in the body that regulate the intake and excretion of WATER and ELECTROLYTES, particularly SODIUM and POTASSIUM.Alphaproteobacteria: A class in the phylum PROTEOBACTERIA comprised mostly of two major phenotypes: purple non-sulfur bacteria and aerobic bacteriochlorophyll-containing bacteria.Sequence Analysis, DNA: A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.Sodium Chloride: A ubiquitous sodium salt that is commonly used to season food.Ileocecal Valve: The valve, at the junction of the CECUM with the COLON, that guards the opening where the ILEUM enters the LARGE INTESTINE.Salmo salar: A commercially important species of SALMON in the family SALMONIDAE, order SALMONIFORMES, which occurs in the North Atlantic.Aquaculture: Cultivation of natural faunal resources of water. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Fish Diseases: Diseases of freshwater, marine, hatchery or aquarium fish. This term includes diseases of both teleosts (true fish) and elasmobranchs (sharks, rays and skates).Heterotrophic Processes: The processes by which organisms utilize organic substances as their nutrient sources. Contrasts with AUTOTROPHIC PROCESSES which make use of simple inorganic substances as the nutrient supply source. Heterotrophs can be either chemoheterotrophs (or chemoorganotrophs) which also require organic substances such as glucose for their primary metabolic energy requirements, or photoheterotrophs (or photoorganotrophs) which derive their primary energy requirements from light. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; heterotrophy; chemotrophy; or PHOTOTROPHY) to utilize different sources to meet their nutrients and energy requirements.Antarctic Regions: The continent lying around the South Pole and the southern waters of the Atlantic, Pacific, and Indian Oceans. It includes the Falkland Islands Dependencies. (From Webster's New Geographical Dictionary, 1988, p55)Tilapia: A freshwater fish used as an experimental organism and for food. This genus of the family Cichlidae (CICHLIDS) inhabits Central and South America (one species extends north into Texas), West Indies, Africa, Madagascar, Syria, and coastal India.Treatment Outcome: 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.Mediterranean SeaMolecular Sequence Data: 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.Plankton: Community of tiny aquatic PLANTS and ANIMALS, and photosynthetic BACTERIA, that are either free-floating or suspended in the water, with little or no power of locomotion. They are divided into PHYTOPLANKTON and ZOOPLANKTON.Bacterial Typing Techniques: Procedures for identifying types and strains of bacteria. The most frequently employed typing systems are BACTERIOPHAGE TYPING and SEROTYPING as well as bacteriocin typing and biotyping.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Fatty Acids: Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed)Cardiac Surgical Procedures: Surgery performed on the heart.Shellfish: Aquatic invertebrates belonging to the phylum MOLLUSCA or the subphylum CRUSTACEA, and used as food.Genes, rRNA: Genes, found in both prokaryotes and eukaryotes, which are transcribed to produce the RNA which is incorporated into RIBOSOMES. Prokaryotic rRNA genes are usually found in OPERONS dispersed throughout the GENOME, whereas eukaryotic rRNA genes are clustered, multicistronic transcriptional units.Bacteria: One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.Geologic Sediments: A mass of organic or inorganic solid fragmented material, or the solid fragment itself, that comes from the weathering of rock and is carried by, suspended in, or dropped by air, water, or ice. It refers also to a mass that is accumulated by any other natural agent and that forms in layers on the earth's surface, such as sand, gravel, silt, mud, fill, or loess. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1689)Temperature: The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.Aortic Valve Prolapse: The downward displacement of the cuspal or pointed end of the trileaflet AORTIC VALVE causing misalignment of the cusps. Severe valve distortion can cause leakage and allow the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to aortic regurgitation.Water Pollution, Chemical: Adverse effect upon bodies of water (LAKES; RIVERS; seas; groundwater etc.) caused by CHEMICAL WATER POLLUTANTS.Water Pollution: Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)Dinoflagellida: Flagellate EUKARYOTES, found mainly in the oceans. They are characterized by the presence of transverse and longitudinal flagella which propel the organisms in a rotating manner through the water. Dinoflagellida were formerly members of the class Phytomastigophorea under the old five kingdom paradigm.Catheterization: Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.Prosthesis Failure: Malfunction of implantation shunts, valves, etc., and prosthesis loosening, migration, and breaking.Crassostrea: A genus of oysters in the family OSTREIDAE, class BIVALVIA.Echocardiography, Doppler: 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.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.Vibrio parahaemolyticus: A species of bacteria found in the marine environment, sea foods, and the feces of patients with acute enteritis.Reoperation: A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.Echocardiography, Doppler, Color: Echocardiography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image.Aerobiosis: Life or metabolic reactions occurring in an environment containing oxygen.Korea: Former kingdom, located on Korea Peninsula between Sea of Japan and Yellow Sea on east coast of Asia. In 1948, the kingdom ceased and two independent countries were formed, divided by the 38th parallel.Pigments, Biological: Any normal or abnormal coloring matter in PLANTS; ANIMALS or micro-organisms.Echocardiography, Three-Dimensional: Echocardiography amplified by the addition of depth to the conventional two-dimensional ECHOCARDIOGRAPHY visualizing only the length and width of the heart. Three-dimensional ultrasound imaging was first described in 1961 but its application to echocardiography did not take place until 1974. (Mayo Clin Proc 1993;68:221-40)Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Decapodiformes: 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.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Coral Reefs: Marine ridges composed of living CORALS, coral skeletons, calcareous algae, and other organisms, mixed with minerals and organic matter. They are found most commonly in tropical waters and support other animal and plant life.Postoperative Complications: Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.Alteromonadaceae: A family of marine, gram-negative PROTEOBACTERIA including the genera ALTEROMONAS; Colwellia; Idiomarina; MARINOBACTER; MORITELLA; PSEUDOALTEROMONAS; and SHEWANELLA.Petroleum: Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants.Hydrogen-Ion Concentration: The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Vibrio Infections: Infections with bacteria of the genus VIBRIO.Biofouling: Process by which unwanted microbial, plant or animal materials or organisms accumulate on man-made surfaces.Phonocardiography: Graphic registration of the heart sounds picked up as vibrations and transformed by a piezoelectric crystal microphone into a varying electrical output according to the stresses imposed by the sound waves. The electrical output is amplified by a stethograph amplifier and recorded by a device incorporated into the electrocardiograph or by a multichannel recording machine.Bays: An area of water mostly surrounded by land, usually smaller than a gulf, and affording access to the sea.Brachyura: An infraorder of chiefly marine, largely carnivorous CRUSTACEA, in the order DECAPODA, including the genera Cancer, Uca, and Callinectes.Fish Proteins: Proteins obtained from species of fish (FISHES).Eukaryota: One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.Water Pollutants, Chemical: Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.Follow-Up Studies: Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.Carbonates: Salts or ions of the theoretical carbonic acid, containing the radical CO2(3-). Carbonates are readily decomposed by acids. The carbonates of the alkali metals are water-soluble; all others are insoluble. (From Grant & Hackh's Chemical Dictionary, 5th ed)Water Pollutants, Radioactive: Pollutants, present in water or bodies of water, which exhibit radioactivity.Vibrio vulnificus: A species of halophilic bacteria in the genus VIBRIO, which lives in warm SEAWATER. It can cause infections in those who eat raw contaminated seafood or have open wounds exposed to seawater.Flounder: Common name for two families of FLATFISHES belonging to the order Pleuronectiformes: left-eye flounders (Bothidae) and right-eye flounders (Pleuronectidae). The latter is more commonly used in research.Quinones: Hydrocarbon rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups.Tenacibaculum: A genus of gram-negative, rod-shaped bacteria in the family FLAVOBACTERIACEAE. Tenacibaculum adheres to surfaces of marine organisms and is pathogenic to fish.Porifera: The phylum of sponges which are sessile, suspension-feeding, multicellular animals that utilize flagellated cells called choanocytes to circulate water. Most are hermaphroditic. They are probably an early evolutionary side branch that gave rise to no other group of animals. Except for about 150 freshwater species, sponges are marine animals. They are a source of ALKALOIDS; STEROLS; and other complex molecules useful in medicine and biological research.SvalbardSewage: Refuse liquid or waste matter carried off by sewers.Bacteroidetes: A phylum of bacteria comprised of three classes: Bacteroides, Flavobacteria, and Sphingobacteria.Pseudoalteromonas: A genus of GRAM-NEGATIVE AEROBIC BACTERIA of marine origin. Many species were formerly classified under ALTEROMONAS.Mollusca: A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.Filtration: A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Colony Count, Microbial: Enumeration by direct count of viable, isolated bacterial, archaeal, or fungal CELLS or SPORES capable of growth on solid CULTURE MEDIA. The method is used routinely by environmental microbiologists for quantifying organisms in AIR; FOOD; and WATER; by clinicians for measuring patients' microbial load; and in antimicrobial drug testing.Mytilus: A genus of marine mussels in the family MYTILIDAE, class BIVALVIA. The species MYTILUS EDULIS is the highly edible common mussel.Suture Techniques: Techniques for securing together the edges of a wound, with loops of thread or similar materials (SUTURES).Phytoplankton: Free-floating minute organisms that are photosynthetic. The term is non-taxonomic and refers to a lifestyle (energy utilization and motility), rather than a particular type of organism. Most, but not all, are unicellular algae. Important groups include DIATOMS; DINOFLAGELLATES; CYANOBACTERIA; CHLOROPHYTA; HAPTOPHYTA; CRYPTOMONADS; and silicoflagellates.Sulfonium Compounds: Sulfur compounds in which the sulfur atom is attached to three organic radicals and an electronegative element or radical.Vitamin K 2: A group of substances similar to VITAMIN K 1 which contains a ring of 2-methyl-1,4-naphthoquinione and an isoprenoid side chain of varying number of isoprene units. In vitamin K 2, each isoprene unit contains a double bond. They are produced by bacteria including the normal intestinal flora.Calcification, Physiologic: Process by which organic tissue becomes hardened by the physiologic deposit of calcium salts.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Geological Phenomena: The inanimate matter of Earth, the structures and properties of this matter, and the processes that affect it.Salmon: Fish of the genera ONCORHYNCHUS and Salmo in the family SALMONIDAE. They are anadromous game fish, frequenting the coastal waters of both the North Atlantic and Pacific. They are known for their gameness as a sport fish and for the quality of their flesh as a table fish. (Webster, 3d ed).Endocardial Cushions: A fetal heart structure that is the bulging areas in the cardiac septum between the HEART ATRIA and the HEART VENTRICLES. During development, growth and fusion of endocardial cushions at midline forms the two atrioventricular canals, the sites for future TRICUSPID VALVE and BICUSPID VALVE.Bryozoa: A phylum of small sessile aquatic animals living as small tufted colonies. Some appear like hydroids or corals, but their internal structure is more advanced. Most bryozoans are matlike, forming thin encrustations on rocks, shells, or kelp. (Storer & Stebbins, General Zoology, 6th ed, p443)Cluster Analysis: A set of statistical methods used to group variables or observations into strongly inter-related subgroups. In epidemiology, it may be used to analyze a closely grouped series of events or cases of disease or other health-related phenomenon with well-defined distribution patterns in relation to time or place or both.Killifishes: Small oviparous fishes in the family Cyprinodontidae, usually striped or barred black. They are much used in mosquito control.Heart Auscultation: Act of listening for sounds within the heart.Balloon Valvuloplasty: Widening of a stenosed HEART VALVE by the insertion of a balloon CATHETER into the valve and inflation of the balloon.Larva: Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.Aquatic Organisms: Organisms that live in water.Aortic Aneurysm: An abnormal balloon- or sac-like dilatation in the wall of AORTA.Species Specificity: The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.Protozoan Infections, Animal: Infections with unicellular organisms formerly members of the subkingdom Protozoa. The infections may be experimental or veterinary.Sodium-Potassium-Exchanging ATPase: An enzyme that catalyzes the active transport system of sodium and potassium ions across the cell wall. Sodium and potassium ions are closely coupled with membrane ATPase which undergoes phosphorylation and dephosphorylation, thereby providing energy for transport of these ions against concentration gradients.Flatfishes: Common name for the order Pleuronectiformes. A very distinctive group in that during development they become asymmetrical, i.e., one eye migrates to lie adjacent to the other. They swim on the eyeless side. FLOUNDER, sole, and turbot, along with several others, are included in this order.Amphipoda: An order of mostly marine CRUSTACEA containing more than 5500 species in over 100 families. Like ISOPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Isopoda, they possess thoracic gills and their bodies are laterally compressed.Cytophaga: A genus of gram-negative gliding bacteria found in SOIL; HUMUS; and FRESHWATER and marine habitats.Salt-Tolerance: The ability of organisms to sense and adapt to high concentrations of salt in their growth environment.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Culture Media: Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.Heart Septal Defects, Ventricular: Developmental abnormalities in any portion of the VENTRICULAR SEPTUM resulting in abnormal communications between the two lower chambers of the heart. Classification of ventricular septal defects is based on location of the communication, such as perimembranous, inlet, outlet (infundibular), central muscular, marginal muscular, or apical muscular defect.Sea Urchins: Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.Water Pollutants: Substances or organisms which pollute the water or bodies of water. Use for water pollutants in general or those for which there is no specific heading.Heart Ventricles: The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.Severity of Illness Index: Levels within a diagnostic group which are established by various measurement criteria applied to the seriousness of a patient's disorder.Oceanography: The science that deals with the ocean and its phenomena. (Webster, 3d ed)Adaptation, Physiological: The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.Trout: Various fish of the family SALMONIDAE, usually smaller than salmon. They are mostly restricted to cool clear freshwater. Some are anadromous. They are highly regarded for their handsome colors, rich well-flavored flesh, and gameness as an angling fish. The genera Salvelinus, Salmo, and ONCORHYNCHUS have been introduced virtually throughout the world.Arctic Regions: The Arctic Ocean and the lands in it and adjacent to it. It includes Point Barrow, Alaska, most of the Franklin District in Canada, two thirds of Greenland, Svalbard, Franz Josef Land, Lapland, Novaya Zemlya, and Northern Siberia. (Webster's New Geographical Dictionary, 1988, p66)Models, Cardiovascular: 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.Polychaeta: A class of marine annelids including sandworms, tube worms, clamworms, and fire worms. It includes also the genus Myxicola infundibulum.Diatoms: The common name for the phylum of microscopic unicellular STRAMENOPILES. Most are aquatic, being found in fresh, brackish, and salt water. Diatoms are noted for the symmetry and sculpturing of their siliceous cell walls. They account for 40% of PHYTOPLANKTON, but not all diatoms are planktonic.Spectrophotometry, Atomic: Spectrophotometric techniques by which the absorption or emmision spectra of radiation from atoms are produced and analyzed.Prosthesis-Related Infections: Infections resulting from the implantation of prosthetic devices. The infections may be acquired from intraoperative contamination (early) or hematogenously acquired from other sites (late).Thromboembolism: Obstruction of a blood vessel (embolism) by a blood clot (THROMBUS) in the blood stream.Pericardium: A conical fibro-serous sac surrounding the HEART and the roots of the great vessels (AORTA; VENAE CAVAE; PULMONARY ARTERY). Pericardium consists of two sacs: the outer fibrous pericardium and the inner serous pericardium. The latter consists of an outer parietal layer facing the fibrous pericardium, and an inner visceral layer (epicardium) resting next to the heart, and a pericardial cavity between these two layers.Chlorides: Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.RNA, Bacterial: Ribonucleic acid in bacteria having regulatory and catalytic roles as well as involvement in protein synthesis.Republic of Korea: The capital is Seoul. The country, established September 9, 1948, is located on the southern part of the Korean Peninsula. Its northern border is shared with the Democratic People's Republic of Korea.Hydrothermal Vents: Hot springs on the ocean floor. They are commonly found near volcanically active places such as mid-oceanic ridges.Hepatopancreas: A primitive form of digestive gland found in marine ARTHROPODS, that contains cells similar to those found in the mammalian liver (HEPATOCYTES), and the PANCREAS.Atlantic OceanLocomotion: Movement or the ability to move from one place or another. It can refer to humans, vertebrate or invertebrate animals, and microorganisms.Indian Ocean: A body of water covering approximately one-fifth of the total ocean area of the earth, extending amidst Africa in the west, Australia in the east, Asia in the north, and Antarctica in the south. Including the Red Sea and the Persian Gulf, it constitutes the third largest ocean after the ATLANTIC OCEAN and the PACIFIC OCEAN. (New Encyclopaedia Britannica Micropaedia, 15th ed, 1990, p289)Cardiopulmonary Bypass: Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs.Heart Neoplasms: Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.Animal Shells: The hard rigid covering of animals including MOLLUSCS; TURTLES; INSECTS; and crustaceans.Rhodophyta: Plants of the division Rhodophyta, commonly known as red algae, in which the red pigment (PHYCOERYTHRIN) predominates. However, if this pigment is destroyed, the algae can appear purple, brown, green, or yellow. Two important substances found in the cell walls of red algae are AGAR and CARRAGEENAN. Some rhodophyta are notable SEAWEED (macroalgae).Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Tricuspid Valve Prolapse: Abnormal protrusion of one or more of the leaflets of TRICUSPID VALVE into the RIGHT ATRIUM during SYSTOLE. This allows the backflow of blood into right atrium leading to TRICUSPID VALVE INSUFFICIENCY; SYSTOLIC MURMURS. Its most common cause is not primary valve abnormality but rather the dilation of the RIGHT VENTRICLE and the tricuspid annulus.Serratia: A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the natural environment (soil, water, and plant surfaces) or as an opportunistic human pathogen.Water Movements: The flow of water in enviromental bodies of water such as rivers, oceans, water supplies, aquariums, etc. It includes currents, tides, and waves.Arbacia: A genus of SEA URCHINS in the family Arbaciidae. They have only one spheridium (stalked body) per ambulacral area (contains tube feet); most sea urchins have several spheridia per area.Ventricular Outflow Obstruction: Occlusion of the outflow tract in either the LEFT VENTRICLE or the RIGHT VENTRICLE of the heart. This may result from CONGENITAL HEART DEFECTS, predisposing heart diseases, complications of surgery, or HEART NEOPLASMS.JapanAlteromonas: A genus of gram-negative, straight or curved rods which are motile by means of a single, polar flagellum. Members of this genus are found in coastal waters and the open ocean. (From Bergey's Manual of Determinative Bacteriology, 9th ed)HydrocarbonsMicroscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Crustacea: A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).
For example, two seawater inlet valves were provided to each sponson. Righting of Costa Concordia, 16-17 September 2013 (bow-on ... The hull continued to rotate, pulled down by the weight of seawater added to the sponsons. The strand jacks and cables went ... At about the halfway-to-vertical position the sponsons were filled with seawater, and Costa Concordia completed its roll to ...
Relief valves are installed in each tube to prevent overpressure. Repairs to holes or rips up to six inches in length can be ... Hatches are sealable to prevent rain and seawater from entering the life rafts. Survival equipment includes: manual reverse ...
... snorkels were equipped with automatic valves to prevent seawater from being sucked into the diesels, but when these valves ... "head valve" open against the pull of a powerful spring. Seawater washing over the mast shorts out exposed electrodes on top, ... This vents the compressed air and allows the head valve to slam shut. When the electrodes are again clear of the water, the ... circuit is re-energized and the valve reopens.[citation needed] Autolycus (submarine detector) Notes Keegan, John (1989). The ...
Most manufactures also utilize an E.P.R.V. (Evaporator pressure regulating valve.) Sea water flake ice machine can make ice ... The timer then closes the valve and lets the ice freeze for about 30 minutes. Then, the timer turns on a low-power electric ... The sump will typically use a float valve to fill as needed during production. Flake machines have a tendency to form an ice ... Here, the high-pressure vapor is condensed into high-pressure liquid, and drained out through the throttle valve to become low- ...
The margins of the valves have a characteristic zig-zag pattern. The surfaces of both valves have many small, low, and rounded ... These molluscs are stationary epifaunal suspension feeders, as they feed filtering sea water to extract the nutrients. This ...
... operating and maintaining desalinization plants used to make fresh water from sea water; repairing or replacing valves, pumps, ...
The margins of the valves have a characteristic zig-zag pattern. The lower valve shows finger-like outgrowths, by which the ... These molluscs are stationary, epifaunal, suspension feeders, as they feed by filtering sea water to extract the nutrients. ... Lopha species have thick, strongly ribbed shells with unequal valves. ...
The drain valves required repair before diving. At 1052 two crew entered the tower to perform repairs. The upper hatch was ... During a watch change at 0300 sea water entered the conning tower. The lower hatch prevented the water from entering the sub; ... When the lower hatch was opened, the submarine was rocked by a large wave, throwing roughly 500 gallons of sea water into ...
The valve surface appears smooth in the stereomicroscope at magnifications of 20 to 60 x. In the scanning electron microscope, ... It is abundantly found in ditches and ponds near the sea shore, where freshwater slightly mingles with sea water. It is known ...
After the craft capsized, the open snorkel valve let still more sea water enter the capsule. When the helicopter crew finally ... Vibrations had loosened a pin in the snorkel valve and allowed the valve to open. Ham was safe in his own couch spacesuit and ... This malfunction was traced later to the air inlet snorkel valve. ... latched onto and picked up Ham's spacecraft at 18:52 UTC., they estimated there was about 800 pounds (360 kg) of sea water ...
The lower valve, with which the animal rests on the bottom, is very convex and light-colored, while the upper valve is flat and ... These scallops eat planktonic organisms and other floating food particles, which they obtain by filtering sea water with their ... The inside of the valves is porcelain-like smooth. The mollusc has at the edge of the mantle many short tentacles, between ... Pecten jacobaeus can reach a length of about 120-140 millimetres (4.7-5.5 in). The two valves have different shapes. ...
... 's corrosion resistance makes it ideal in applications such as piping systems, pump shafts, seawater valves, trolling wire ... Like Monel 400, alloy R-405 is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. ... In stagnant or slow-moving sea water, fouling may occur followed by pitting, but this pitting slows down after a fairly rapid ... Monel is used as the material for valve pistons or rotors in some higher quality musical instruments such as trumpets, tubas ...
Exhaust valves are opened by a two-stage exhaust valve actuator which is activated by oil delivered from an electronically ... From the turbocharger, air is sent to be cooled through a sea water cooler then stored in a scavenge air receiver. This air is ... By controlling these valves electronically, the combustion process is fully controlled by the Engine Control System. The frame ... Fuel injection controls the speed in which the engine will be operating at, while the exhaust valves control the exit of ...
This feed water is sea water pumped into the boat and desalinated. The desalinated water is then fed to the steam generators. ... The steam passes through several driers and onto the main steam stop valve (port and starboard) as super heated dry steam. The ...
US 977562, Sloan, William, "Valve", issued December 6, 1910 Seawater flushing to be extended to more Hong Kong toilets next ... To flush the toilet, the user pushes a lever, which lifts the flush valve from the valve seat. The valve then floats clear of ... The valve closet has a valve or flap at the exit of the bowl with a water-tight seal to retain a pool of water in the pan. When ... The float is usually shaped like a ball, so the mechanism is called a ball-valve or a ballcock. Cock is a term for valve; see, ...
The group's flagship, Theodore Roosevelt, was delayed by a faulty seawater intake valve and did not get underway until 11 March ...
... seawater continued to flood into the submarine until the valves were secured. After the problem was communicated to the surface ... A vent valve was found that had not been tightly shut, and more water had seeped into the aft battery compartment. All lithium ... Thus, that line was filled with seawater to a depth equivalent to the pressure in the boat, and did not allow air flow. All ... When the connection was opened aboard Pacocha, high-pressure seawater came from the line since it had not yet been blown dry. ...
The lower tanks are connected to these ballast tanks by non-return valves. When a lower tank is damaged, the incoming sea water ...
The flame shell resembles a scallop with a bright orange fringe of tentacle-like filaments emerging from between the valve of ... Holes in the reef allow fresh seawater to flow through, preventing stagnation. These reefs support a diverse marine ecosystem. ...
A valve opened and closed, holding the device at a depth of about 30 m (98 ft). The device lasted 20 to 25 minutes. The Royal ... When mixed with seawater, the calcium hydride produced large quantities of hydrogen which bubbled out of the container, ...
... gave Glitra's crew time to disembark into lifeboats before sinking the ship by opening valves to flood holds with seawater. The ...
Since the density of seawater is greater than that of oil, water comes into the tanks instead of oil escaping out, and rather ... The lower tanks are connected to these ballast tanks by non-return valves. The United States Coast Guard does not allow this ... the incoming sea water pushes the oil in the damaged tank up into the ballast tank. Because of the hydrostatic pressure, there ...
... he ensured the seawater valves were lined up, allowing pumping out to commence. Once the valves were aligned, he remained in ... Due to high winds and 10-to-11-foot (3.0 to 3.4 m) swells in the ocean, approximately 70 to 85 tons of seawater entered the ...
The clams are kept in these systems until they reach a valve length of 5 mm, at which point they are ready to be planted. Four ... The tubes also serve to retain seawater at low tide, which prevents dehydration of the clams. After one to two growing seasons ... The clams are placed in milk crates and maintained in polyethylene fish totes supplied with flowing seawater (10-12 °C) for ... Tertiary nursery systems are made of large outdoor tanks or totes which have the same sand substrate and flowing seawater. ...
... isolation valves, electrical switchgear and seawater pumps. The upgrades increased the net electrical output by 20 MWto 880 MW ... In April 2014 a turbine steam condenser of unit 1 had a small seawater leak, at a rate of two litres per hour. According to the ...
Instead, a simple valve at the upper end of the foot helps to control water pressure in the tube feet, along with contraction ... Although the contents of the water vascular system are essentially sea water, apart from coelomocytes, the fluid also contains ... rather than sea water. The madreporite is present, but lies within the body cavity, just below the pharynx. The stone canal is ...
Choose quality sea water butterfly valves products from large database of sea water butterfly valves manufacturers and ... sea water butterfly valves product listings on SeekPart.com - ... valve butterfly valve valves butterfly valves sea water valves ... butterfly valves and gate valves ball valves butterfly valves sea water pumps sea water pipes cummins sea water pump Sea water ... Home , Valves & Fittings , Other Valves , sea water butterfly valves. Related Searches: sea water butterfly valves ...
Freshwater and Seawater Service - 403-27 Pneumatically Operated Remote Control Valve - Freshwater and Seawater Service ... Pneumatic Deluge Valves - 403-27 Pneumatically Operated Remote Control Valve - ... 403-27 Pneumatic Remote Control Valve - Freshwater & Seawater. [403-27] The Cla-Val 403-27 Remote Control Valve is used where " ... a small auxiliary valve installed on the main valve cover, which in turn opens or closes the main valve. Only the small amount ...
Remote Control Valve for Seawater Service - 134-61 Fire Deluge Solenoid & Remote Control Valve for Seawater Service ... electric deluge valves for fire protection applications. Contact us today for additional information. - 134-61 Fire Deluge ... The Cla-Val Model 134-61 Seawater Service Solenoid Control Valve is an on-off control valve which either opens or closes upon ... 134-61 Fire Deluge Solenoid & Remote Control Valve for Seawater Service. [134-61] ...
Mexican designer Marco Antonio Barba Sánchez has won a James Dyson Award for inventing a seawater purifier, for people without ... which contains the filling cap and air pressure valve, are two separate parts. ... Bermuda is a pop-up seawater purifier that uses light to remove salt. Share:. ... It is made for use in emergencies where drinking water is hard to come by but seawater, and the sunlight needed to distil it, ...
Stainless Steel Needle Valve. 316 stainless steel needle valve allows for control of the waste water. ... Seawater Membranes. Filmtec seawater membrane delivers quality high product water with highest rejection rates. Average 2-3 ... Youre reviewing: Sea Water Desalination 2200 GPD Reverse Osmosis System. How do you rate this product? *. 1 star. 2 stars. 3 ... 2nd Stage Sea Water Membrane. MEM-SW-700. MEM-SW-700. MEM-SW-700. MEM-SW-700. Recommend to change. Every 2-3 Years. Every 2-3 ...
Seawater System Valves (continued) Figure 1-3 Label Identification Type: Callout Location and Valve Function 1/4-in gate valve ... strainer chest to strainer and isolates strainer 2-in gate valve SW38 Void 4 port - On input STRAINER TO GENERA- side of ... Allows cooling cooling line flow to generator 2 and isolates strainer 2-in globe valve SW41 Void 4 starboard - On GENERATOR 2 ... Allows generator cooling line cooling flow from generator and isolates generator from overboard discharge 2-in gate valve SW44 ...
Naibang Valve is professional in supplying high-end and fashion sea water service wafer double disc check valve. We have ... Sea Water Service Wafer Double Disc Check Valve. Check valves are unidirectional and usually installed in high pressure ... Hot Tags: sea water service wafer double disc check valve China, manufacturer, quality, cheap, product ... Check valves are unidirectional and usually installed in high pressure pipelines for preventing fluid flowing back in well ...
Valves Sea water filters are corrosion resistant. 4th November 2010 12:00 am 15th December 2015 2:48 pm ... Sea water filters are corrosion resistant. 4th November 2010 12:00 am 15th December 2015 2:48 pm ...
... also known as duckbill valve, non-return valve and one-way valve, normally allows fluid to flow through it in only one ... Henan Lanphan analyzed the advantages of duckbill valve applied in seawater drainage project. ... Duckbill valve applied in seawater drainage project to prevent seawater and sediment form intrusion. The density of seawater ... Rubber check valve, also known as duckbill valve, non-return valve and one-way valve, normally allows fluid to flow through it ...
Select 2018 high quality Aluminium Bronze Valve products in best price from certified Chinese Valve manufacturers, Ball Valve ... Didtek Board C95800 Aluminum Bronze Gate Valve Used in Sea Water FOB Price: US $ 100-1500 / Piece. Min. Order: 1 Piece ... Valve Price Ball Valve Price Butterfly Valve Price Brass Valve Price Wcb Butterfly Valve Factory Lug Butterfly Valve Factory ... Bronze Gate Valve Bronze Ball Valve Wafer Butterfly Valve Lug Type Butterfly Valve Swing Check Valve Bronze Butterfly Valve ...
f) Seawater valves. · Make repair of all bottom- and side valves, according to list.. DNV-GL inspection. g) Seawater pipes:. · ... Install new seawater filters for auxilary.. d) Fuel oil system:. · Install new system for monitoring fuel consumption and ... Install tanks and pipe lines (DN50) from existing seawater system to seachest. Pipe line from tank go into seachest and ends ... Standard maintence on compressors, motors, condences, valve and more equipment in system.. · Renew pipes from separator to ...
The valve allows sea water to enter the tank. For fuel tanks, the purpose was cleaning the tanks. On water tanks, the Kingston ... When opened from the ships interior, the Kingston valve allows sea water to enter the tank. The mechanism is named after its ... A Kingston valve is a type of valve fitted in the bottom of a ships plating that connects the sea to the ships piping and ... One Kingston valve serves a pair, but each tank has a vent riser, with air connections and stop valves in the vent riser. The ...
Air Operated 1/2 Inch Stainless Steel Explosion Proof Submersible Antiabrasive Sea Water Pump ... Wenzhou Kasin Valve Pipe Fitting Co., Ltd. US $16.55-1000 / Set 50 Sets (Min. Order) ... 75Kw 100 meter head stainless steel deep well sea water submersible pump price ... Tags: Stainless Steel Deep Well Sea Water Pump , Water Submersible Pump Price , Submersible Water Pump Price ...
We manufacture water regulating valves r410a refrigerant valve, pressure actuator valves, condenser regulator valve, r410a va ... List of Metrex Valves 800.266.4027 Metrex Valve heat exchange water regulating valves for Commercial, Marine, & Nuclear HVAC. ... Metrex Valve Corp.. 505 South Vermont Ave., Glendora,. CA 91741 USA. Phone: 800.266.4027, 626.335.4027. Fax: 626.335.1514. ... List of Metrex Valves. Metrex Matrix. SIZE. 3/8. 1/2. 3/4. 1. 1-1/4. 1-1/2. 2. 2-1/2. 3. 4. 6. 8. ...
... thus realizing the multi-efficiency utilization of seawater. The composite solar seawater desalting device does not require an ... thus finishing the seawater desalting process. When being condensed, the steam generates latent heat that is used for ... paraboloid light-concentration heat collector so that film falling and film evaporating are carried out on the seawater and the ... The utility model discloses a composite solar seawater desalting device. The device body consists of a water storage tank, a ...
For example, two seawater inlet valves were provided to each sponson. Righting of Costa Concordia, 16-17 September 2013 (bow-on ... The hull continued to rotate, pulled down by the weight of seawater added to the sponsons. The strand jacks and cables went ... At about the halfway-to-vertical position the sponsons were filled with seawater, and Costa Concordia completed its roll to ...
2 Fit a flexible hose at the drain valve and place its open end into a container full of seawater equipped with a central ... at the end of filtration, close the valve and rinse for 10 to 15 minutes the rotifers with filtered sterilized seawater at the ... Ideally, seawater should be free from pathogens and pollutants. With this aim in mind, seawater is treated to remove suspended ... but also provides a reservoir of seawater to tackle unpredictable problems in seawater supply, such as a damaged main pump ...
valves. Seawater temperature can interfere with production, as can fluctuations in engine load. For this reason, the evaporator ... Seawater greenhouse (view), Artificial seawater (view), 2006 Mumbai sweet seawater incident (view), Minjur Seawater ... SingSpring Seawater Desalination Plant, Singapore Seawater Desalination Plant, Tianjin City, China Seawater Desalination Plant ... Crop tolerance to seawater (view), Southern Seawater Desalination Plant (view) searching for Seawater 315 found (4038 total). ...
Sea water cooling pump (electric driven). *Temperature control valve. Exhaust System. *Silencer (with or without spark arrester ...
Sea water cooling pump (electric driven). *Steam / thermal oil cooling water preheater. *Temperature control valve ...
Reducing valves of one type or another are found, for example, in firemain, seawater, and other systems. A reducing valve can ... and ball valves. Plug valves and needle valves may also be considered stop valves. GLOBE VALVES.- Globe valves are probably the ... valves, however, function either as stop valves or as check valves-depending on the position of the valve stem. These valves ... Some ball valves contain a swing check located within the ball to give the valve a check valve feature. Ball valves are ...
Sea water intake valves. *Docks. *Cleaning tanker compartments. *Cleaning bilge. *General Barge/ Tug cleaning ... Cleans all piping, valves, floor gratings, walls and machine structures of chemical residues. ...
Ball valves are normally found in the following systems aboard ship: seawater, sanitary, trim and drain, air, hydraulic, and ... Plug valves and needle valves may also be considered stop valves.. GLOBE VALVES.- Globe valves are probably the most common ... Besides the basic types of valves, many special valves, which cannot really be classified as either stop valves or check valves ... When the valve is wide open, the gate is fully drawn up into the valve, leaving an opening for flow through the valve the same ...
... part of the seawater is directly sprayed on the surface of the plastic pellet to form a seawater film with a large contact area ... the tops of the humidifying towers are provided with the seawater spray heads; part of feed seawater and humid high-temperature ... the seawater film is subjected to heat and humidity exchange with air flowing from bottom to top to form saturated humid air ... seawater spray heads, a draught fan, a plastic pellet, a stainless steel disc, a condenser and a water pump, wherein the ...
Choose quality water valve CE products from large database of water valve CE manufacturers and suppliers at SeekPart.com. ... water valve CE product listings on SeekPart.com - ... Details: CE Sea Water Butterfly Valve Luoyang Jinerjian Trading ... gas valve ce fire valve ce safety valve ce stainless ce fire valve brass relief valve ce ce valve valve ul ce valve brass check ... water release valve water piston valve water valve steam valve ce safety valve ce fire extinguisher valve safety valve ...
  • Rubber check valve is widely applied in water drainage project and pump station, Henan Lanphan analyzed the advantages of duckbill valve applied in seawater drainage project. (lanphan.com)
  • Wenzhou Ronda Pump Valve Co., Ltd. (alibaba.com)
  • It provides relay outputs for the Watermaker high pressure pump, inlet valve, membrane flush process, and optional relays for permeate divert or remote alarm and an auxiliary output. (ampac1.com)
  • The strainer is connected via the supplied pipe and fittings and needs to be installed in between the SeaProp 60 sea water inlet valve and the engine sea water cooling pump. (betamarine.co.uk)
  • The pump casing is made of seawater resistant aluminium and the impeller of stainless steel. (nauticexpo.com)
  • 8. Apparatus as claimed in claim 4 and having hydraulic means including a spool valve arranged for operating said controlled valve means and wherein means responsive to the pressure rise in the output of said pump means at each end of each stroke of said pistons or diaphragms are arranged to effect operation of the spool valve to thereby operate said controlled valve means. (google.com.au)
  • Stopping water completely The housing of a general service seawater pump is badly corroded. (free-marine.com)
  • But the valve servicing this pump cannot be closed properly. (free-marine.com)
  • a phase separator and reservoir connected to said conductivity sensor and said metering valve and the input of said pump for evolving and eliminating hydrogen from the electrolyte electrochemical reaction. (google.co.uk)
  • Disposable valves may be found in common household items including mini-pump dispensers and aerosol cans . (wikipedia.org)
  • Self-priming electric pumps with helical PTFE gears and integrated check valve. (nauticexpo.com)
  • On March 17, seawater was sprayed by helicopters and by concrete pumps on reactor unit 3 and spent fuel containment. (pnas.org)
  • KSB pumps, valves and systems are used with great success all over the world. (ksb.com)
  • KSB pumps, valves and systems stand for technical progress and meet all recognised standards. (ksb.com)
  • KSB is the brand with the greatest technical expertise in pumps and valves. (ksb.com)
  • With the loss of power at reactor 3, and with its valves and pumps damaged by the tsunami, emergency workers were pumping in seawater mixed with boron - which disrupts nuclear chain reactions - to cool the rods. (bbc.co.uk)
  • A gate valve 20 connects the conduit 13 to the intake port 15. (patentgenius.com)
  • A common use of the term valve refers to the poppet valves found in the vast majority of modern internal combustion engines such as those in most fossil fuel powered vehicles which are used to control the intake of the fuel-air mixture and allow exhaust gas venting. (wikipedia.org)
  • More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator . (wikipedia.org)
  • An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements. (wikipedia.org)
  • activity as measured on March 28 is in accord with neutrons escaping the reactor core and being absorbed by the coolant seawater 35 Cl to produce 35 S by a ( n , p ) reaction. (pnas.org)
  • levels also climb temporarily when technicians open valves to vent steam from the damaged cores in order to allow fresh seawater coolant to be pumped in, prompting teams to retreat before venting is carried out. (theregister.co.uk)
  • The resilient seat is under compression when it is mounted in the valve body, thus making a seal around the periphery of the disk and both upper and lower points where the stem passes through the seat. (tpub.com)
  • A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries ) by opening, closing, or partially obstructing various passageways. (wikipedia.org)
  • Additional key characteristics include a robust design, compact dimensions and numerous versions, including a seawater resistant design. (bitzer.de)
  • Gate valves used in steam systems have flexible gates. (scribd.com)
  • When steam lines are heated, they will expand, causing some distortion of valve bodies. (scribd.com)
  • In case of equipment that must be monitored and inspected, all relevant laws and regulations, such as the Industrial Code, the The VAG DUOJET Automatic Air Valve must be transported and Accident Prevention Regulations, the Ordinance of Steam Boilers stored in a secure transport position. (scribd.com)
  • The steam generated due to overheating was released through the relief valve into the atmosphere to avoid explosive hydrogen buildup within the reactor vessel. (pnas.org)
  • Because both on- and off-site power to the plant was disabled, seawater mixed with boric acid (to reduce the neutron flux in the core and thus slow down the nuclear reaction) was continuously pumped into the reactor vessels of units 1, 2, and 3 from March 13 to March 26, 2011 ( http://www.iaea.org ). (pnas.org)
  • A consequence is that salts and minerals present in seawater become radioactive by reaction with thermal neutrons emitted from the reactor. (pnas.org)
  • Seawater cooling of the three damaged reactor cores (Nos 1, 2 and 3) at the site continues. (theregister.co.uk)
  • Gate valves are not suitable for throttling purposes since the control of flow would be difficult due to valve design and since the flow of fluid slapping against a partially open gate can cause extensive damage to the valve. (scribd.com)
  • Everyone dealing with the assembly, disassembly, operation, be packed in stable packaging material suitable for the maintenance and repair of the valves must have read and under- size of the valve. (scribd.com)
  • Larval clownfish reared in control seawater (pH 8.15) discriminated between a range of cues that could help them locate reef habitat and suitable settlement sites. (pnas.org)
  • Gate valves are used when a straight-line flow of fluid and minimum restriction is desired. (scribd.com)
  • Gate valves are so named because the part that either stops or allows flow through the valve acts somewhat like the opening or closing of a gate and is called, appropriately, the gate. (scribd.com)
  • Except as specifically authorized, gate valves should not be used for throttling. (scribd.com)
  • Gate valves are classified as either RISINGSTEM or NONRISING-STEM valves. (scribd.com)
  • When using this valve, the generally acknowledged rules of tech- DN Nominal diameter of the valve nology have to be observed (e.g. international standards, etc. (scribd.com)
  • Valve costs range from simple inexpensive disposable valves to specialized valves which cost thousands of US dollars per inch of the diameter of the valve. (wikipedia.org)
  • Upside down gate valve On board ship, Mabuk the Cadet Marine Engineer Officer has to face challenging situations and problems. (free-marine.com)
  • Solution for dismantling upside down gate valve Have you tried to find an industrial solution for Mabuk, the cadet marine engineer? (free-marine.com)