Air Ionization: The dissociation of molecules in the air into positive and negative ions under the influence of an electric field.Air: The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.Radiometry: The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.Film Dosimetry: Use of a device (film badge) for measuring exposure of individuals to radiation. It is usually made of metal, plastic, or paper and loaded with one or more pieces of x-ray film.Particle Accelerators: Devices which accelerate electrically charged atomic or subatomic particles, such as electrons, protons or ions, to high velocities so they have high kinetic energy.Scintillation Counting: Detection and counting of scintillations produced in a fluorescent material by ionizing radiation.Radiotherapy, High-Energy: Radiotherapy using high-energy (megavolt or higher) ionizing radiation. Types of radiation include gamma rays, produced by a radioisotope within a teletherapy unit; x-rays, electrons, protons, alpha particles (helium ions) and heavy charged ions, produced by particle acceleration; and neutrons and pi-mesons (pions), produced as secondary particles following bombardment of a target with a primary particle.Dictionaries, MedicalFlame Ionization: Pyrolysis of organic compounds at the temperature of a hydrogen-air flame to produce ionic intermediates which can be collected and the resulting ion current measured by gas chromatography.Chromatography, Gas: Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.Oils, Volatile: Oils which evaporate readily. The volatile oils occur in aromatic plants, to which they give odor and other characteristics. Most volatile oils consist of a mixture of two or more TERPENES or of a mixture of an eleoptene (the more volatile constituent of a volatile oil) with a stearopten (the more solid constituent). The synonym essential oils refers to the essence of a plant, as its perfume or scent, and not to its indispensability.Confined Spaces: A space which has limited openings for entry and exit combined with unfavorable natural ventilation such as CAVES, refrigerators, deep tunnels, pipelines, sewers, silos, tanks, vats, mines, deep trenches or pits, vaults, manholes, chimneys, etc.Gas Chromatography-Mass Spectrometry: A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.Gases: The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)Ozone: The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).Xanthine: A purine base found in most body tissues and fluids, certain plants, and some urinary calculi. It is an intermediate in the degradation of adenosine monophosphate to uric acid, being formed by oxidation of hypoxanthine. The methylated xanthine compounds caffeine, theobromine, and theophylline and their derivatives are used in medicine for their bronchodilator effects. (Dorland, 28th ed)Oxidants, Photochemical: Compounds that accept electrons in an oxidation-reduction reaction. The reaction is induced by or accelerated by exposure to electromagnetic radiation in the spectrum of visible or ultraviolet light.Pentosyltransferases: Enzymes of the transferase class that catalyze the transfer of a pentose group from one compound to another.Air Pollutants: Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.Leishmania donovani: A parasitic hemoflagellate of the subgenus Leishmania leishmania that infects man and animals and causes visceral leishmaniasis (LEISHMANIASIS, VISCERAL). The sandfly genera Phlebotomus and Lutzomyia are the vectors.Noble Gases: Elements that constitute group 18 (formerly the zero group) of the periodic table. They are gases that generally do not react chemically.Physics: The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Spectrometry, Mass, Electrospray Ionization: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.Krypton: A noble gas that is found in the atmosphere. It has the atomic symbol Kr, atomic number 36, atomic weight 83.80, and has been used in electric bulbs.Xenon: A noble gas with the atomic symbol Xe, atomic number 54, and atomic weight 131.30. It is found in the earth's atmosphere and has been used as an anesthetic.Electrons: Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS.Electron Transport: The process by which ELECTRONS are transported from a reduced substrate to molecular OXYGEN. (From Bennington, Saunders Dictionary and Encyclopedia of Laboratory Medicine and Technology, 1984, p270)Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Clinical Trials as Topic: Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.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.Antineoplastic Combined Chemotherapy Protocols: The use of two or more chemicals simultaneously or sequentially in the drug therapy of neoplasms. The drugs need not be in the same dosage form.Salvage Therapy: A therapeutic approach, involving chemotherapy, radiation therapy, or surgery, after initial regimens have failed to lead to improvement in a patient's condition. Salvage therapy is most often used for neoplastic diseases.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.MedlinePlus: NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.Quality Control: A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)Perceptual Distortion: Lack of correspondence between the way a stimulus is commonly perceived and the way an individual perceives it under given conditions.Otoacoustic Emissions, Spontaneous: Self-generated faint acoustic signals from the inner ear (COCHLEA) without external stimulation. These faint signals can be recorded in the EAR CANAL and are indications of active OUTER AUDITORY HAIR CELLS. Spontaneous otoacoustic emissions are found in all classes of land vertebrates.Animal Testing Alternatives: Procedures, such as TISSUE CULTURE TECHNIQUES; mathematical models; etc., when used or advocated for use in place of the use of animals in research or diagnostic laboratories.Equipment Safety: Freedom of equipment from actual or potential hazards.United States Food and Drug Administration: An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.Device Approval: Process that is gone through in order for a device to receive approval by a government regulatory agency. This includes any required preclinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance. It is not restricted to FDA.Health Educators: Professionals who plan, organize and direct health education programs for the individual, groups and the community.Healthy People Programs: Healthy People Programs are a set of health objectives to be used by governments, communities, professional organizations, and others to help develop programs to improve health. It builds on initiatives pursued over the past two decades beginning with the 1979 Surgeon General's Report, Healthy People, Healthy People 2000: National Health Promotion and Disease Prevention Objectives, and Healthy People 2010. These established national health objectives and served as the basis for the development of state and community plans. These are administered by the Office of Disease Prevention and Health Promotion (ODPHP). Similar programs are conducted by other national governments.Health Promotion: Encouraging consumer behaviors most likely to optimize health potentials (physical and psychosocial) through health information, preventive programs, and access to medical care.Health Behavior: Behaviors expressed by individuals to protect, maintain or promote their health status. For example, proper diet, and appropriate exercise are activities perceived to influence health status. Life style is closely associated with health behavior and factors influencing life style are socioeconomic, educational, and cultural.Science: The study of natural phenomena by observation, measurement, and experimentation.Life Style: Typical way of life or manner of living characteristic of an individual or group. (From APA, Thesaurus of Psychological Index Terms, 8th ed)Water Purification: Any of several processes in which undesirable impurities in water are removed or neutralized; for example, chlorination, filtration, primary treatment, ion exchange, and distillation. It includes treatment of WASTE WATER to provide potable and hygienic water in a controlled or closed environment as well as provision of public drinking water supplies.Household Articles: Various material objects and items in the home. It includes temporary or permanent machinery and appliances. It does not include furniture or interior furnishings (FURNITURE see INTERIOR DESIGN AND FURNISHINGS; INTERIOR FURNISHINGS see INTERIOR DESIGN AND FURNISHINGS).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)Air Conditioning: The maintenance of certain aspects of the environment within a defined space to facilitate the function of that space; aspects controlled include air temperature and motion, radiant heat level, moisture, and concentration of pollutants such as dust, microorganisms, and gases. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)China: A country spanning from central Asia to the Pacific Ocean.Rumen: The first stomach of ruminants. It lies on the left side of the body, occupying the whole of the left side of the abdomen and even stretching across the median plane of the body to the right side. It is capacious, divided into an upper and a lower sac, each of which has a blind sac at its posterior extremity. The rumen is lined by mucous membrane containing no digestive glands, but mucus-secreting glands are present in large numbers. Coarse, partially chewed food is stored and churned in the rumen until the animal finds circumstances convenient for rumination. When this occurs, little balls of food are regurgitated through the esophagus into the mouth, and are subjected to a second more thorough mastication, swallowed, and passed on into other parts of the compound stomach. (From Black's Veterinary Dictionary, 17th ed)
Factors influencing the analytical performance of an atmospheric sampling glow discharge ionization source as revealed via ionization dynamics modeling. (1/24)
A kinetic model is developed for the dynamic events occurring within an atmospheric sampling glow discharge that affect its performance as an ion source for analytical mass spectrometry. The differential equations incorporate secondary electron generation and thermalization, reagent and analyte ion formation via electron capture and ion-molecule reactions, ion loss via recombination processes, diffusion, and ion-molecule reactions with matrix components, and the sampling and pumping parameters of the source. Because the ion source has a flow-through configuration, the number densities of selected species can be estimated by applying the steady-state assumption. However, understanding of its operation is aided by knowledge of the dynamic behavior, so numerical methods are applied to examine the time dependence of those species as well. As in other plasma ionization sources, the ionization efficiency is essentially determined by the ratio of the relevant ion formation and recombination rates. Although thermal electron and positive reagent ion number densities are comparable, the electron capture/ion-molecule reaction rate coefficient ratio is normally quite large and the ion-electron recombination rate coefficient is about an order of magnitude greater than that for ion-ion recombination. Consequently, the efficiency for negative analyte ion formation via electron capture is generally superior to that for positive analyte ion generation via ion-molecule reaction. However, the efficiency for positive analyte ion formation should be equal to or better than that for negative analyte ions when both ionization processes occur via ion-molecule reaction processes (with comparable rate coefficients), since the negative reagent ion density is considerably less than that for positive reagent ions. Furthermore, the particularly high number densities of thermal electrons and reagent ions leads to a large dynamic range of linear response for the source. Simulation results also suggest that analyte ion number densities might be enhanced by modification of the standard physical and operating parameters of the source. (+info)Millisecond pulsed radio frequency glow discharge time of flight mass spectrometry: temporal and spatial variations in molecular energetics. (2/24)
The internal energy distributions, P(epsilon), of a millisecond pulsed radio frequency glow discharge plasma were investigated using tungsten hexcarbonyl W(CO)(6) as a "thermometer molecule". Vapor of the probe molecule, W(CO)(6), was introduced into the plasma and subjected to various ionization and excitation processes therein. The resultant molecular and fragment ions were monitored using a Time-of-Flight mass spectrometer. Ion abundance data were utilized in combination with the known energetics of W(CO)(6) to construct the P(epsilon) plots. The P(epsilon) of W(CO)(6) exhibited strong temporal dependence over the pulse cycle: Distinct internal energy distributions were found at the discharge breakdown period (prepeak), the steady state period (plateau), and the post-pulse period (afterpeak). Spatial variation in P(epsilon) was also observed, especially during the plateau regime. The observations suggest that this pulsed glow discharge affords excellent energy tunability that can be used to perform selective ionization and fragmentation for molecular, structural, and elemental information. Parametric studies were performed to evaluate the effects of discharge pressure and operating power on P(epsilon). These studies also provided insight into the correlation of the observed P(epsilon)s with the fundamental ionization and excitation mechanisms in the plasma. The temporal and spatial variations in P(epsilon) were hence attributed to changes in the dominant energy transfer processes at specific times in specific regions of the plasma. These data will be useful in future efforts to optimize the analytical performance of this source for chemical speciation. (+info)Comparison of electrospray ionization, atmospheric pressure chemical ionization, and atmospheric pressure photoionization for the analysis of dinitropyrene and aminonitropyrene LC-MS/MS. (3/24)
The only relevant source for human exposure to dinitropyrenes is diesel engine emissions. Due to this specificity, dinitropyrenes may be used as biomarkers for monitoring human exposure to diesel engine emissions. Only few analytical methods have been described for the quantitation of dinitropyrenes and their metabolites, aminonitropyrenes, and diaminopyrenes. Therefore, for dinitropyrenes, aminonitropyrenes, and diaminopyrenes were selected as model compounds for the development of a sensitive HPLC-MS/MS method (high performance liquid chromatography coupled to triple quadrupole mass spectrometry) was to quantify polyaromatic amines and nitroarenes in biological matrices was developed optimal methods by comparing electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI), and atmospheric pressure photoionization (APPI) sources. Dinitropyrene was not effectively ionized and diaminopyrene yielded mainly [M(.)](+) ions by electrospray ionization. With APCI and APPI, precursor ions of diaminopyrene and aminonitropyrene were [M + H](+) and [M(.)](-) for dinitropyrene. Precursor ions with [M - 30(.)](-) for dinitropyrene and [M - 30 + H](+) for aminonitropyrene were observed. Reversed and normal phase HPLC-MS/MS with ESI, APCI and APPI were optimized separately with respect to unequivocal analyte identification and sensitivity. Normal phase HPLC coupled to APPI-MS/MS gave the highest precision and sensitivity for aminonitropyrene (6%/0.2 pg on column) and dinitropyrene (9%/0.5 pg on column). The limit of detection in spiked rat plasma was 5 pg/100 microL for aminonitropyrene (accuracy 82%) and 10 pg/100 microL for dinitropyrene (accuracy 105%). In plasma of rats treated with dinitropyrene by oral administration, no detectable levels of dinitropyrene but higher aminonitropyrene levels compared with intratracheal instillation were observed. These findings clearly demonstrate that dinitropyrene was absorbed after oral and intratracheal application and that a reduction of nitro groups occurs to a high extent in the reductive environment of the intestine. To our knowledge, this is the first time that aminonitropyrene was observed in plasma after intratracheal or oral administration directly demonstrating the reductive metabolism of dinitropyrene in vivo. (+info)Studies on the effects of ionization on bacterial aerosols in a burns and plastic surgery unit. (4/24)
The effect of the ionization of the air on the decay of bacterial aerosols was studied in a Burns and Plastic Surgery Unit. Ions were generated by free corona needles. The air content of bacteria measured by settle plates was found to be smaller during the ionization period than during the controls period. The number of individual phage typed Staph. aureus strains was especially found to be lower during ionization. The opposite potential increased the disappearance of bacteria from the air. The size of skin particles carrying bacteria is not optimum, but the results obtained show that the ionization may have applications in controlling airborne infection. (+info)Reduced flavin: NMR investigation of N5-H exchange mechanism, estimation of ionisation constants and assessment of properties as biological catalyst. (5/24)
BACKGROUND: The flavin in its FMN and FAD forms is a versatile cofactor that is involved in catalysis of most disparate types of biological reactions. These include redox reactions such as dehydrogenations, activation of dioxygen, electron transfer, bioluminescence, blue light reception, photobiochemistry (as in photolyases), redox signaling etc. Recently, hitherto unrecognized types of biological reactions have been uncovered that do not involve redox shuffles, and might involve the reduced form of the flavin as a catalyst. The present work addresses properties of reduced flavin relevant in this context. RESULTS: N(5)-H exchange reactions of the flavin reduced form and its pH dependence were studied using the 15N-NMR-signals of 15N-enriched, reduced flavin in the pH range from 5 to 12. The chemical shifts of the N(3) and N(5) resonances are not affected to a relevant extent in this pH range. This contrasts with the multiplicity of the N(5)-resonance, which strongly depends on pH. It is a doublet between pH 8.45 and 10.25 that coalesces into a singlet at lower and higher pH values. From the line width of the 15N(5) signal the pH-dependent rate of hydrogen exchange was deduced. The multiplicity of the 15N(5) signal and the proton exchange rates are little dependent on the buffer system used. CONCLUSION: The exchange rates allow an estimation of the pKa value of N(5)-H deprotonation in reduced flavin to be >or= 20. This value imposes specific constraints for mechanisms of flavoprotein catalysis based on this process. On the other hand the pK asymptotically equal to 4 for N(5)-H protonation (to form N(5)+-H2) would be consistent with a role of N(5)-H as a base. (+info)Hospital-acquired legionnaires disease in a university hospital: impact of the copper-silver ionization system. (6/24)
We evaluated the impact of the copper-silver ionization system in a hospital where hyperendemic nosocomial legionellosis and was present and all previous disinfection measures had failed. After implementation of the copper-silver ionization system, environmental colonization with Legionella species decreased significantly, and the incidence of nosocomial legionellosis decreased dramatically, from 2.45 to 0.18 cases per 1000 patient discharges. (+info)Bactericidal action of positive and negative ions in air. (7/24)
BACKGROUND: In recent years there has been renewed interest in the use of air ionisers to control of the spread of airborne infection. One characteristic of air ions which has been widely reported is their apparent biocidal action. However, whilst the body of evidence suggests a biocidal effect in the presence of air ions the physical and biological mechanisms involved remain unclear. In particular, it is not clear which of several possible mechanisms of electrical origin (i.e. the action of the ions, the production of ozone, or the action of the electric field) are responsible for cell death. A study was therefore undertaken to clarify this issue and to determine the physical mechanisms associated with microbial cell death. RESULTS: In the study seven bacterial species (Staphylococcus aureus, Mycobacterium parafortuitum, Pseudomonas aeruginosa, Acinetobacter baumanii, Burkholderia cenocepacia, Bacillus subtilis and Serratia marcescens) were exposed to both positive and negative ions in the presence of air. In order to distinguish between effects arising from: (i) the action of the air ions; (ii) the action of the electric field, and (iii) the action of ozone, two interventions were made. The first intervention involved placing a thin mica sheet between the ionisation source and the bacteria, directly over the agar plates. This intervention, while leaving the electric field unaltered, prevented the air ions from reaching the microbial samples. In addition, the mica plate prevented ozone produced from reaching the bacteria. The second intervention involved placing an earthed wire mesh directly above the agar plates. This prevented both the electric field and the air ions from impacting on the bacteria, while allowing any ozone present to reach the agar plate. With the exception of Mycobacterium parafortuitum, the principal cause of cell death amongst the bacteria studied was exposure to ozone, with electroporation playing a secondary role. However in the case of Mycobacterium parafortuitum, electroporation resulting from exposure to the electric field appears to have been the principal cause of cell inactivation. CONCLUSION: The results of the study suggest that the bactericidal action attributed to negative air ions by previous researchers may have been overestimated. (+info)The detection of airborne transmission of tuberculosis from HIV-infected patients, using an in vivo air sampling model. (8/24)
BACKGROUND: Nosocomial transmission of tuberculosis remains an important public health problem. We created an in vivo air sampling model to study airborne transmission of tuberculosis from patients coinfected with human immunodeficiency virus (HIV) and to evaluate environmental control measures. METHODS: An animal facility was built above a mechanically ventilated HIV-tuberculosis ward in Lima, Peru. A mean of 92 guinea pigs were continuously exposed to all ward exhaust air for 16 months. Animals had tuberculin skin tests performed at monthly intervals, and those with positive reactions were removed for autopsy and culture for tuberculosis. RESULTS: Over 505 consecutive days, there were 118 ward admissions by 97 patients with pulmonary tuberculosis, with a median duration of hospitalization of 11 days. All patients were infected with HIV and constituted a heterogeneous group with both new and existing diagnoses of tuberculosis. There was a wide variation in monthly rates of guinea pigs developing positive tuberculin test results (0%-53%). Of 292 animals exposed to ward air, 159 developed positive tuberculin skin test results, of which 129 had laboratory confirmation of tuberculosis. The HIV-positive patients with pulmonary tuberculosis produced a mean of 8.2 infectious quanta per hour, compared with 1.25 for HIV-negative patients with tuberculosis in similar studies from the 1950s. The mean monthly patient infectiousness varied greatly, from production of 0-44 infectious quanta per hour, as did the theoretical risk for a health care worker to acquire tuberculosis by breathing ward air. CONCLUSIONS: HIV-positive patients with tuberculosis varied greatly in their infectiousness, and some were highly infectious. Use of environmental control strategies for nosocomial tuberculosis is therefore a priority, especially in areas with a high prevalence of both tuberculosis and HIV infection. (+info)
Two years experience with quality assurance protocol for patient related Rapid Arc treatment plan verification using a two...
Environmental Control Measures | Children's Education Materials
Air Ionization | Harvard Catalyst Profiles | Harvard Catalyst
Do 'corona discharge' devices alleviate asthma? - The Straight Dope
Environmental Control Measures
Fukushima Emergency what can we do?: Climate Risks from Nuclear Power. Radioactive Krypton 85: Atmospheric-Electrical and Air...
Air ioniser - Wikipedia
http://www.j.sinap.ac.cn/hjs/EN/10.11889/j.0253-3219.2017.hjs.40.080102
Patente US5957133 - Oral appliance with negative air supply for reducing sleep apnea and snoring - Google Patentes
US5957133A - Oral appliance with negative air supply for reducing sleep apnea and snoring
- Google Patents
Used Negative Air Machine | Facility | BioSurplus
Patent US4508606 - Process for treating polymer surfaces to reduce their friction resistance ... - Google Patents
In vitro Untersuchung der Fibroblastenadhäsion und -proliferation an oberflächenmodifizierten Titanwerkstoffen
In vitro Untersuchung der Fibroblastenadhäsion und -proliferation an oberflächenmodifizierten Titanwerkstoffen
Amino acid-functionalized hydroxyapatite | Journal of The Royal Society Interface
Positive Air Pressure Devices Market Size By 2027 | ResMed Inc.,
Abstract. Glow discharges are used in a large number of applications, and it is one of the most - PDF Free Download
Plan Verification and Fairness Act of 2017 (H.R. 706) - GovTrack.us
Glow Discharge Mass Spectrometry | GDMS | EAG Laboratories
Global Glow Discharge Spectrometer Sales Market Share, Analysis, Trends 2021 By Acute Market Reports
Dual USB Mini Car Air Purifier with Negative Ion Ionizer
Bacterial resistance to antibiotics : bioMérieux, antibiotic resistance testing
Air-borne infections. II. Detection methods of air-borne bacteria
Gas Chromatography with Soft Ionization Mass Spectrometry for the Characterization of Natural Products | Chromatography Online
LOC DEVICE FOR ELECTROCHEMILUMINESCENT DETECTION OF TARGET NUCLEIC ACID SEQUENCES USING HYBRIDIZATION CHAMBER ARRAY AND...
LOC DEVICE FOR ELECTROCHEMILUMINESCENT DETECTION OF TARGET NUCLEIC ACID SEQUENCES USING HYBRIDIZATION CHAMBER ARRAY AND...
Sleep Archivi - Pagina 2 di 3 - Panorama 4° Piano
What Are The Affects of Cold Air on Exercising, Muscles and Lung Capacity | HubPages
Electron Kinetics and Applications of Glow Discharges (NATO by Uwe Kortshagen, Lev D. Tsendin - Carlos Bezerra Library
Photography of Plasma and Glow Discharge - Fusor Forums
Fusor Forums • Photography of Plasma and Glow Discharge
The effect of power balance on the heating mode transition in micro-dielectric barrier helium glow discharges
Datasets - data.bris
MEDLINE - Resultado p gina 1
UKEAP: National Ammonia Monitoring Network - Defra, UK
Corporate Fellows | ORNL
UNF - College of Arts & Sciences - facgrants
Railings on the
Subject: 'riparian forests' - PubAg Search Results
Treat the 2nd Generation BTM Larvae in Toronto NOW - ONnurserycrops BlogONnurserycrops Blog
Patente US7718067 - Septic system remediation method and apparatus - Google Patentes
The Asthma Center Education and Research Fund | Disease Information | Pulmonary Diseases related to Hypersensitivity
DIY Ionizer Clears The Air On A Budget | Hackaday
DIY Ionizer Clears The Air On A Budget | Hackaday
Cleaner European air on Environmental XPRT
The Analysis of Polycyclic Aromatic Hydrocarbons (PAHs) by LC/MS/MS Using ,,, an Atmospheric Pressure Photoionization...
Journal Highlight: A comparison of electrospray ionization, atmospheric pressure chemical ionization, and atmospheric pressure...
Development of LC/MS/MS Methods for Cocktail Dosed Caco-2 Samples Using Atmospheric Pressure Photoionization and Electrospray...
Mass Spec Analytical - Atmospheric Pressure Chemical Ionisation (APCI)
The effects of continuous positive air pressure treatment on anxiety and depression levels in apnea patients
Patent US4262631 - Thin film deposition apparatus using an RF glow discharge - Google Patents
Gas chromatographic electron capture negative ionization mass spectrometric (GC/ECNI/MS) determination of unique fluorinated...
A study of the glow discharge characteristics of contact electrodes at atmospheric pressure in air (Journal Article) | SciTech...
Computer simulations of crater profiles in glow discharge optical emission spectrometry: comparison with experiments and...
Atmospheric-pressure chemical ionization - Wikipedia
National Tree Seed Centre | Natural Resources Canada
Direct Characterization of Porphyrins in Petroleum from Natural Seeps - MagLab
Paper published by TPU scientists cited in Materials Today with impact factor exceeding 21
/ TPU
Relative sub-shell photoionization cross-sections of nickel metal determined by hard X-ray high kinetic energy photoemission
Rapid detection of nicotine from breath using desorption ionisation on porous silicon | Nature Index
Free-air ionization chamber legal definition of free-air ionization chamber
Acid-base equilibria in aqueous solutions of 2-aminopurine radical cations generated by two-photon photoionization<...
A glow discharge time-of-flight mass spectrometry (GD-TOFMS) study of the 'hydrogen effect' using copper, iron and titanium...
Depth Profiling Analysis by Plasma Profiling Time of Flight Mass Spectrometry - HORIBA
Ammonia - Anis Allagui, Ph.D
Science - data.bris
Search Results
Home - Automotive, Personal, Household Air Quality Products Guaranteed FREE WORLDWIDE SHIPPING
THE MECHANISM OF AERIAL DISINFECTION BY GLYCOLS AND OTHER CHEMICAL AGENTS | JEM
Asbestos Abatement Services - Water Damage Ottawa
Department of Endoscopy | Hiroshima University
Gardens in Tuscany, Italy
Design and performance of a high-flux electrospray ionization source for ion soft landing - Analyst (RSC Publishing)
Ozone Generator Machine Home Air Purifier Smoke Air Ioniser Cleaner 5,000 mg/hr - Shopping.com
Bosiank III cyst 50/50 - Kidney Cancer Group - Discussion Forum - Kidney cancer - Macmillan's Online Community
H2 Health Alkaline Water Ioniser Lubricates Joints And Muscles | Hydrogen Spa machine | Hydrogen Water Machines | Hydrogenated...
Portable Photoionization News on Environmental XPRT
HR Del Remnant Anatomy Using Two-Dimensional Spectral Data and Three-Dimensional Photoionization Shell Models - NASA/ADS
Clearing the air on health effects of living near dairies | Kewaunee Cares
Effect of H2O content in air on the carburizing behavior of charcoal gas | SpringerLink
Access Exclusive: Howie Mandel Clears The Air On Heart Attack Rumors - NBC10 Philadelphia
Method for Benzene in Air on 6890N | Agilent Community
Clearing the Air on Elevator Sterilization - Elevator World, Inc.
Ynetnews News - Obama, Clinton to give joint TV interview to air on Sunday
Probability, Mathematical Statistics, and Stochastic Processes | CAUSEweb
Kaempferol-3-O-glucoside Mass Spectrum
2'-Hydroxygenistein C-glucoside malonylated Mass Spectrum
Electric vs Glow
NASA Confesses to Dosing Americans with Air-borne Lithium & Other Chemicals | Stillness in the Storm
OSA | Determination of Ionization Efficiencies of Excited Atoms in a Flame by Laser-Enhanced Ionization Spectrometry
Ionization alternative
US4266999A - Catheter for long-term emplacement
- Google Patents
Earthing therapy
Dawn simulation
History of the periodic table
MEMS magnetic field sensor
Barium - Simple English Wikipedia, the free encyclopedia
வேதியியலுக்கான நோபல் பரிசு பெற்றவர்கள் - தமிழ் விக்கிப்பீடியா
Microelectromechanical systems
List of plasma physics articles
Air Ionization | Harvard Catalyst Profiles | Harvard Catalyst
Do 'corona discharge' devices alleviate asthma? - The Straight Dope
Dual USB Mini Car Air Purifier with Negative Ion Ionizer
The effect of negative air ionization on the thymus glands of laboratory rats | SpringerLink
Microplasma Ionization of Volatile Organics for Improving Air/Water Monitoring Systems On-Board the International Space Station...
Air ionization-Effective technology to address odours? - HVAC/R engineering - Eng-Tips
Free-air ionization chamber legal definition of free-air ionization chamber
REDUCTION OF DUST EXPOSURE BY NEGATIVE AIR IONISATION
Forced Indoor Air Ionization - Halosense - Salt Therapy at Home
Upper-Room Ultraviolet Light and Negative Air Ionization to Prevent Tuberculosis Transmission - White Rose Research Online
Portable Gas Detection | PID & Ozone Monitors - Air-Met Scientific | MicroFID II Flame Ionisation Detector - Air-Met Scientific
The ionizations constant of a very weak acid, HA is | bartleby
Maximum ionization of free elements | Physics Forums - The Fusion of Science and Community
How Lightning Works | HowStuffWorks
Chemical Monitoring Instrumentation
Search - SAE International
NIOSHTIC-2 Publications Search - 20042656 - Effect of calibration environment on the performance of direct-reading organic...
What is the maximum temperature that the ionization tube can be subjected to? | Plasma Air
Global Sterilization Technologies Market to 2026: Market Accounted for $8.06 Billion in 2017 and is Expected to Reach $14.93...
Electrical Wiring Faults Fire Hazards
Dust Air Purifiers, Dust Air Purifiers Suppliers and Manufacturers at Alibaba.com
EMC Promulgated Test Methods | Air Emission Measurement Center (EMC) | US EPA
The science of quality air, the art of healthy living presentation …
China Mfresh YL-100E Plug in High Concentrate Ionization Air Purifier - China Air Purifier, Air Cleaner with Ionizwer
Patent US7285155 - Air conditioner device with enhanced ion output production features - Google Patents
Flame IonizatiPurifierChambersDesorptionAbstractGasesDetectorsChamberPhotoelectricParticlePurifiersDetectorIonsVacuumElectrosprayAirborneConcentrationAnionParticles in the airElectrically chargedElectronAerosolsWinter DepressionMoleculesAmbient airParticulatePollutants in the airElectrostaticSourceEfficiencyQualityProducesSystemMonitorsAtmosphericEmissionStatistically significantDetectableDischargeChromatographyMassSmokeContaminationCleanerProcessesKermaDustRadioactiveConcentrationsContaminants presentElectrodesNegative
Flame Ionizati6
- The intrinsically safe, portable MicroFID II Flame Ionization Detector (FID) is designed for HAZMAT detection, confined space entry and soil gas monitoring. (airmet.com.au)
- For Capillary dedicated Flame Ionization Detector (FID). (fishersci.com)
- Prior to sampling, the monitors were calibrated per the manufacturer's instructions using methane for the TVA flame ionization detector (FID) and isobutylene for the photoionization detector (PID), whereas the SapphIRe instruments were zeroed and the instrument's manufacturer-supplied library was used. (cdc.gov)
- Samples are desorbed with toluene and analyzed by GC using a flame ionization detector (FID). (osha.gov)
- The instrument in the center is a GC/FID (gas chromatograph/flame ionization detector) system. (in.gov)
- Gas chromatography with a flame ionization detector (GC-FID) was used to determine the air concentration. (nih.gov)
Purifier12
- Air Purifier, Air Cleaner with Ionizwer, Ionizer Purifier manufacturer / supplier in China, offering Mfresh YL-100E Plug in High Concentrate Ionization Air Purifier, High Concentration Anionic Air Purifier (100C), Mfresh 2014 Hot Selling 6334e HEPA Filter Air Purifier//Negative Ion Air Purifier for Home/Office Use and so on. (made-in-china.com)
- The negative ions, produced by the ioniser , attach to these particles and form larger particles that can be trapped more easily by an air purifier filter or attracted to surfaces within the room and consequently being taken out of the air. (healthy-house.co.uk)
- The Ela AP282 UV HEPA Air Purifier timer function means you can set your air purifier going and simply forget about it and carry on with your everyday tasks. (healthy-house.co.uk)
- The Fellowes AeraMax DX55 uses the high efficiency True HEPA filter in the air purifier will remove 99.97% of particles down to 0.3 microns. (healthy-house.co.uk)
- To take the concern out of maintenance, the AeraMax DX55 air purifier includes a filter change indicator to help you maintain optimal performance. (healthy-house.co.uk)
- The Healthy House ® offers the range of Fellowes ® Replacement Filters to help you maintain your AeraMax DX55 air purifier. (healthy-house.co.uk)
- The AeraMax DX55 Air Purifier will easily filter the air in your room size up to 30m 2 at 3 air changes per hour on the high setting. (healthy-house.co.uk)
- This gives you peace of mind without having to manually alter the AeraMax DX55 Air Purifier settings. (healthy-house.co.uk)
- An air purifier is provided for purifying air in rooms of a home, office, or other commercial establishment. (google.com)
- 0 /24 T-z f l gi/ nvvslvrolr JOHNJ.HALLORA/V 68 22 v ATTORNEVS AIR PURIFIER Air contamination is generally broken down into two separate and distinct areas. (google.com)
- CLEAiR is an air purifier that keeps you updated about the air quality at home. (yankodesign.com)
- This Austin Air A250 Healthmate Plus Junior Air Purifier cleaner specifically designed for those who are chemically sensitive. (appliancesconnection.com)
Chambers4
- Two of the air-kerma standard chambers used in the comparison are parallel-plate free-air ionization chambers and the third standard is a variable volume cylindrical chamber. (thefreedictionary.com)
- The theoretical aspects of dosimetry are given in the comprehensive chapter on cavity theory, followed by the description of primary measurement standards, ionization chambers, chemical dosimeters and solid state detectors. (wiley.com)
- It describes options and how to calibrate plane parallel ionization chambers, against air kerma or absorbed dose to water standards at cobalt-60 gamma ray energies. (iaea.org)
- ISDs principally differ in number and design of the measurement and reference chambers necessary for measuring the ionisation current and in the electronic evaluation system used. (bfs.de)
Desorption10
- Eckerskorn C, Strupat K, Karas M, Hillenkamp F, Lottspeich F. Mass spectrometric analysis of blotted proteins after gel electrophoretic separation by matrix-assisted laser desorption/ionization. (harvard.edu)
- ESI is different from other atmospheric pressure ionization processes (e.g. matrix-assisted laser desorption/ionization (MALDI)) since it may produce multiple-charged ions, effectively extending the mass range of the analyser to accommodate the kDa-MDa orders of magnitude observed in proteins and their associated polypeptide fragments. (wikipedia.org)
- In this study, we developed an in situ metabolomics method based on ambient mass spectrometry imaging using air flow-assisted desorption electrospray ionization (AFADESI), which can spatially explore the alteration of global metabolites in tissues with high sensitivity. (nature.com)
- Matrix-assisted laser desorption ionization (MALDI) MSI allows direct analysis of the spatial distribution of proteins in tissue specimens, enabling the discovery of diagnostic and prognostic markers of cancer 20 , 21 . (nature.com)
- Desorption electrospray ionization (DESI) MSI, one of the earliest ambient MSI methods, has been applied to the classification of tumors and can provide valuable prognostic information such as tumor subtype and grade, mainly in terms of the lipid profile 22 , 23 . (nature.com)
- Imaging mass spectrometry by matrix-assisted laser desorption/ionization (MALDI-IMS) and stress-strain measurements were used. (hindawi.com)
- Surface analysis using a new plasma assisted desorption ionisation source for mass spectrometry in ambient air. (npl.co.uk)
- The authors report on a modified micro plasma assisted desorption/ionisation (PADI) device which creates plasma through the breakdown of ambient air rather than utilising an independent noble gas flow. (npl.co.uk)
- Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) is suitable for high-throughput and rapid diagnostics at low costs and can be considered an alternative for conventional biochemical and molecular identification systems in a conventional microbiological laboratory. (asm.org)
- Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been used to analyze many different biological molecules. (asm.org)
Abstract1
- Attorney Agent or Flrmpamck Barren John A. Michnowicz, Santa Clara, both of Calif. ABSTRACT Assignee: newletbpackard Company, Palo This is an ion-producing source having a distinct Alto Calm chemical ionization configuration and a distinct electron impact configuration. (google.com)
Gases5
- As the vapors or gases rise, the temperatures in the surrounding air drop lower and lower. (howstuffworks.com)
- Gas-phase air filters remove gases and odors by using a material called a sorbent, such as activated carbon, which adsorbs the pollutants. (epa.gov)
- Gases and odours are analysed manually using handheld detectors and by panels of volunteers asked to smell samples of air. (eurekalert.org)
- The new device has four sensors which analyse the composition of gases in the air. (eurekalert.org)
- Next, the air passes through an absorbent filter to remove gases. (fishersci.com)
Detectors9
- Ionisation smoke detectors (ISD) are smoke detectors using radioactive substances , in most cases americium-241 with activities between 15 and 40 kilobecquerels. (bfs.de)
- Levels of methane gas are currently monitored using Flame Ionisation Detectors. (eurekalert.org)
- There are many brands of smoke detector on the market, but they all fall under two basic types- ionization chamber smoke detectors and photoelectric smoke detectors . (hometips.com)
- Ionization detectors use a radioactive source that produces electrically charged molecules (ions). (hometips.com)
- Ionization detectors are better at detecting the smaller amounts of smoke produced by fast, flaming fires. (hometips.com)
- Duct detectors are installed through the wall of a duct in order to sense whether smoke is present in the air-circulation system. (ecmag.com)
- Ionization-type detectors are best at sensing smoke that contains small, submicron, invisible particles, which generally are found in smoke close to a flaming fire. (ecmag.com)
- The detectors should be carefully set up for the average normal conditions existing at their location in the heating, ventilating and air conditioning (HVAC) system. (ecmag.com)
- Duct detectors only can sense smoke when it is being circulated through the forced air-circulation system, but there are times when the fans may not be running. (ecmag.com)
Chamber17
- The free-air ionization chamber that has been dedicated for the measurement of air-kerma for electronic brachytherapy is the Lamperti FAC . (thefreedictionary.com)
- Aitken, An Analysis of the Free-Air Ionization Chamber for Extended Sources of Radiation, Phys. (thefreedictionary.com)
- The instrument most nearly suitable for exposure measurements of radiation from iodine-125 is the Ritz free-air ionization chamber (FAC). (thefreedictionary.com)
- In this source, a hollow chamber including an ion source and a source of sample molecules receives a hollow, slidable cylindrical member having a chemical ionization chamber within it. (google.com)
- Orifices in the chamber and the cylindrical member connect the chemical ionization source chamber to the electron source and to the sample molecule source when the cylindrical member is pulled to one position. (google.com)
- When the cylindrical member is pulled to another position, the slidable cylindrical member and the inside walls of the chamber define the ionization region to which the electron source and the sample molecule source are directly connected. (google.com)
- In this source, a hollow i 1 Flledi g- 9 1973 chamber including an ion source and a source of sam- APPL No: 391,721 ple molecules receives a hollow, slidable cylindrical member having a chemical ionization chamber within it. (google.com)
- 250/427 connect the chemical ionization source chamber to [51 1 Int. Cl. (google.com)
- When the cylindrical member is pulled to another pol Referemes Cied sition, the slidable cylindrical member and the inside UNITED STATES PATENTS walls of the chamber define the ionization region to 3.115591 12/1963 Brunnee a. 250/423 WhiCh the electron mum and the Sample molecule 3355.587 11/1967 j k n 25 7 source are directly connected. (google.com)
- Haldane chamber an air-tight chamber in which animals are confined for metabolic studies. (thefreedictionary.com)
- In this study, ozone emission and particle removal rates of four wearable ionization air cleaners (namely, AC1 through AC4) were evaluated inside a 0.46 m3 stainless steel chamber. (cdc.gov)
- According to TG-59, an ionization chamber reading is corrected to compensate for the temperature and pressure dependence of which of the following? (theabr.org)
- Measurements of the gamma ray exposure rate were made with a pressurized ionization chamber. (cdc.gov)
- Inside of the ionization smoke detector is an ionization chamber, a power source, and a source of ionizing radiation. (bartleby.com)
- An ionization chamber consists of two plates that have a voltage arcing across them and an ionizing radiation source that is usually americium. (bartleby.com)
- One of the plates inside of the ionization chamber is positively charged and the other has a negative charge. (bartleby.com)
- The electronics built into the smoke detector can sense these electrical currents, so when a fire occurs and smoke enters the ionization chamber, the electrical current is disrupted the alarm is then set off. (bartleby.com)
Photoelectric3
- Top-rated smoke and carbon monoxide detector uses both ionization and photoelectric technologies, and it features voice commands to let you know what's wrong. (hometips.com)
- Two main detecting technologies exist: ionization and photoelectric. (ecmag.com)
- For these reasons, photoelectric detection technology has advantages over ionization detection technology in air duct system applications. (ecmag.com)
Particle1
- The unit is set for the normal background particle level and then triggers when the air particles reach a preset threshold level. (ecmag.com)
Purifiers5
- The Healthy House ® recommends their air purifiers based on a minimum of 3 air changes per hour. (healthy-house.co.uk)
- Air purifiers have increased in popularity. (healthcentral.com)
- Active air purifiers use ionization to clean the air. (healthcentral.com)
- The best known names in commercially available air purifiers those made by Levoit Technologies, Bionaire , Guardian industries , Hamilton Beach , and Houselog . (healthcentral.com)
- Like all Austin Air Purifiers, the Allergy Machine Jr. has been independently tested for filtration effectiveness by third-party and U.S. government labs. (appliancesconnection.com)
Detector4
- The more unique contribution of this research lies in the innovative discharge ionization detector. (cdc.gov)
- A stand-alone detector typically is integrated into an air-handling device, such as a rooftop exhaust fan, by a manufacturer, who then sells it to a mechanical contractor as a complete unit, whereas a fire alarm system typically is sold to an electrical contractor. (ecmag.com)
- Jaegers smoke alarm system was considered an ionization smoke detector. (bartleby.com)
- The Ionization smoke detector detects smoke by sensing smoke particles. (bartleby.com)
Ions5
- An older RCT conducted by the same authors also found air ionization effective for SAD at 2.7x106 ions/cm3. (wikipedia.org)
- The dissociation of molecules in the air into positive and negative ions under the influence of an electric field. (harvard.edu)
- Electrospray ionization (ESI) is a technique used in mass spectrometry to produce ions using an electrospray in which a high voltage is applied to a liquid to create an aerosol. (wikipedia.org)
- Ion generators, or ionizers, disperse charged ions into the air, similar to the electronic air cleaners but without a collector. (epa.gov)
- Travelling fast and far the positive holes cause a range of follow-on reactions when they arrive at the Earth's surface, where they cause air ionization, injecting massive amounts of primarily positive air ions into the lower atmosphere. (mdpi.com)
Vacuum1
- They can be either small stand-alone devices or in the case of more sophisticated offerings, incorporated into heat, vacuum and air conditioning (HVAC) units in larger homes and other large dwellings and work spaces. (healthcentral.com)
Electrospray7
- Mass spectrometry using ESI is called electrospray ionization mass spectrometry (ESI-MS) or, less commonly, electrospray mass spectrometry (ES-MS). ESI is a so-called 'soft ionization' technique, since there is very little fragmentation. (wikipedia.org)
- The electrospray ionization technique was first reported by Masamichi Yamashita and John Fenn in 1984. (wikipedia.org)
- The development of electrospray ionization for the analysis of biological macromolecules was rewarded with the attribution of the Nobel Prize in Chemistry to John Bennett Fenn in 2002. (wikipedia.org)
- The first use of electrospray ionization with mass spectrometry was reported by Malcolm Dole in 1968. (wikipedia.org)
- John Bennett Fenn was awarded the 2002 Nobel Prize in Chemistry for the development of electrospray ionization mass spectrometry in the late 1980s. (wikipedia.org)
- Because the ion formation involves extensive solvent evaporation (also termed desolvation), the typical solvents for electrospray ionization are prepared by mixing water with volatile organic compounds (e.g. methanol acetonitrile). (wikipedia.org)
- The secondary electrospray ionization mass spectrometry (SESI-MS) technique is a highly sensitive promising technique for the analyses of complex mixtures of trace gaseous analytes in air and breath, achieving limits of detection in the pmol/mol range. (cas.cz)
Airborne5
- We evaluated the efficacy of upper-room ultraviolet (UV) lights and negative air ionization for preventing airborne TB transmission using a guinea pig air-sampling model to measure the TB infectiousness of ward air. (whiterose.ac.uk)
- Conclusions Upper-room UV lights and negative air ionization each prevented most airborne TB transmission detectable by guinea pig air sampling. (whiterose.ac.uk)
- 6. Airborne transmission depends on people tolaunch viruses into the air. (slideshare.net)
- The first area concerns itself with particulate contamination of the air and consists of particles of airborne lint, fly ash, dust, pollen, fungus spores, bacteria, and minute liquid aerosols. (google.com)
- This measure is known as the PM2.5 count which refers to the small airborne particles in areas with heavy air pollution. (healthcentral.com)
Concentration5
- Acceptable Indoor Air Concentration. (cdc.gov)
- For example, the concentration of smoke particles can be reduced by clean air from nearby returns in other rooms. (ecmag.com)
- If the GC/FID detects a high concentration of pollutants in the sample the chemists can dilute the sample (add extra clean air) so it doesn't damage the GC/MS. After the sample is analyzed they then multiply the results by the dilution factor (based on the amount of air added) to determine the actual concentration in the original sample. (in.gov)
- 2NO2 + Mo 3 NO + MoO3 Possible interference: N-containing compounds higher measured NO2 NO - NO2 - NOx EM - FT- IR Spectrometry www.k2bw.com/images/chem.gif Can you design an instrument that can measure the concentration of both NO and NO2 in the air? (slideserve.com)
- There was linear dependence (r = 0.76) between the summary concentration of naphthols in urine and the naphthalene concentration in air. (nih.gov)
Anion1
- While the cation ionization seems straightforward I'm more concerned about the anion ionization. (physicsforums.com)
Particles in the air2
- The minimum true HEPA standard requires the filter to capture 99.97% of the 0.3 micron particles in the air passing through the filter. (healthy-house.co.uk)
- Extremely effective at removing particles in the air including dust, pollens, and smoke elements. (appliancesconnection.com)
Electrically charged1
- When the air heats up the electricity climes due to air which is electrically charged usually around 5000-20,000 volts but Jacob ladders can occur with 500,000 to 1 million volts at the transmission line, etc too. (instructables.com)
Electron5
- This is an ion-producing source having a distinct chemical ionization configuration and a distinct electron impact configuration. (google.com)
- By moving the cylindrical member, the ionization source can be changed from a chemical ionization source to an electron impact source. (google.com)
- Tieman 250/427 from a chemical ionization source to an electron im- MLlIlSOI'l pact ource 3.582.645 6/197l Brunnee et al. (google.com)
- The term ionization means that an electron is knocked off of an atom, thus creating a free electron. (bartleby.com)
- An ionization event normally produces a positive atomic ion and an electron. (bionity.com)
Aerosols2
- If fire aerosols enter the ISD through its vents, the size of the ionisation current changes. (bfs.de)
- Compressed air passes through a condensate separator and coalescing filter to remove aerosols and fine dust particles. (fishersci.com)
Winter Depression1
- There is some limited evidence to support the effectiveness of acupuncture, light therapy (for non-seasonal depression), massage therapy, negative air ionisation (for winter depression), relaxation therapy, S -adenosylmethionine, folate and yoga breathing exercises. (mja.com.au)
Molecules1
- The second area concerns itself with gaseous contaminates such as carbon monoxide, sulfur dioxide, etc. which are in solution with the air molecules. (google.com)
Ambient air3
- Three MIRAN SapphIRe portable ambient air analyzers (SAP) and three Century portable toxic vapor analyzers (TVAs) were evaluated. (cdc.gov)
- Air Quality Monitoring Network Air Quality Monitoring What's the use of ambient air quality monitoring data? (slideserve.com)
- National Ambient Air Quality Standards Why different durations? (slideserve.com)
Particulate7
- HEPA is an acronym for "High Efficiency Particulate Air" or "High Efficiency Particulate Arrestance. (healthy-house.co.uk)
- The particulate matter continually floating around the air in your home is made up of substances like dust, metals, smoke, liquid droplets, chemicals and pollen. (mercola.com)
- High efficiency particulate air (HEPA) filters are in this category. (epa.gov)
- One of the ways to reduce this burden is through the use of High Efficiency Particulate Air (HEPA) filtering machines. (healthcentral.com)
- Fine particulate matter is defined as particles floating in the air that measure 2.5 microns which means they are small enough to be inhaled and reach the small airways. (healthcentral.com)
- With the High Efficiency Particulate Air (HEPA) filter, the goal is to remove particles as small as 2.5 microns thereby lowering the indoor PM2.5 count. (healthcentral.com)
- Lastly, air glides through 30 square feet of true medical-grade HEPA (High Efficiency Particulate Air) material where it is scrubbed free of harmful bacteria and viruses as well as smaller pollen, mold, pet dander, dust, and ragweed particles. (appliancesconnection.com)
Pollutants in the air2
- With the highest volume of customers and flights in the country, our terminals at LAX were often saturated with unwanted jet fumes, odors and other pollutants in the air. (plasma-air.com)
- In the past 20 years, the instrumentation used for the sampling and analysis of air toxics has become much more sophisticated and much more accurate at measuring the levels of pollutants in the air. (in.gov)
Electrostatic2
- Electrostatic filters tend to remove all particulates from an air flow - very effectively. (eng-tips.com)
- Electronic air cleaners such as electrostatic precipitators use a process called electrostatic attraction to trap charged particles. (epa.gov)
Source8
- The next logical step in the design of a combined air/water analyzer is the miniaturization of the plasma ion source itself by using a microplasma system, with the goal of reducing overall instrument size, required gas flow rates, and electrical power consumption. (springer.com)
- These species also act to provide a source of protons to facilitate the ionization process. (wikipedia.org)
- c. a voltage source coupled to the emitter and collector electrodes to produce a flow of air from the emitter electrode to the collector electrode, the voltage source configured to automatically produce a first flow of air during a start up period and a second flow of air after the start up period, wherein the first flow is greater than the second flow. (google.com.au)
- Ambient- and indoor-air sampling indicated that there was no environmental source of contamination. (cdc.gov)
- the ionization source can be changed 3.553. (google.com)
- Those allergens are tracked back inside and spread all around your home, including in the air, creating a major source of recurring irritation for your pet's itchy skin . (mercola.com)
- REHVA guidance targets common non-residential buildings and in this case, outdoor air is NOT a contamination source. (rehva.eu)
- NFPA 72, section A.5-16.4.2, states, "In almost every fire scenario in an air handling system, the point of detection will be some distance from the fire source, therefore, the smoke will be cooler and more visible because of the growth of sub-micron particles into larger particles due to agglomeration and recombination. (ecmag.com)
Efficiency3
- Air is filtered by a mechanical filter, then odors are removed from the air, and the air is exposed to germicidal lamps for killing bacteria, then the air passes through a high efficiency electrostatically. (google.com)
- Air quality contractors in Monterey County and San Benito County address a large variety of home air quality problems, but these problems fall into three basic categories: comfort, health, and energy efficiency. (diamondcertified.org)
- A high efficiency air filtration method and apparatus utilizes a fibrous filter medium that is polarized by a high potential difference which exists between two electrodes. (google.com.ar)
Quality20
- Evaluating and mapping of spatial air ion quality patterns in a residential garden using a geostatistic method. (harvard.edu)
- Current in-flight air monitoring systems provide the necessary information to accurately assess air quality in the International Space Station (ISS), but the information available regarding water quality is still limited. (springer.com)
- These on-board technologies, however, lack specificity or only focus on a narrow class of analytes, and are not implemented in a fashion that enables simultaneous air and water quality assessment. (springer.com)
- I'm pursuing several air quality issues at the same time and you might have seen my other thread on kitchen exhaust systems. (eng-tips.com)
- Hong Kong, September 21, 2011) - CHI Residences is to become Hong Kong's first Serviced Apartment brand to provide superior indoor air quality that meets and exceeds World Health Organisation Standards (WHO) as adopted by the Hong Kong government through the introduction of Oxyvital air purification technology. (environmental-expert.com)
- 2. What is IAQ ?Indoor Air Quality as defined by OSHA Malaysia,OSHA Singapore and ASHRAE standard 62-1989. (slideshare.net)
- So quality air is always related to fresh air. (slideshare.net)
- 2.Q: How do we know the air quality9 A:Indicator's color changing shows the air quality in the room. (alibaba.com)
- Many dogs and cats these days have environmental allergies , including dust mite allergies, that can be triggered or made worse by poor air quality inside the home. (mercola.com)
- Few things can impact your health and comfort more than your indoor air quality system. (diamondcertified.org)
- Because most people spend more time at home than in any other single location, it is important to ensure that your indoor air quality and climate control system is serving your needs every day. (diamondcertified.org)
- Add to this that air quality is not visibly detectable, and most ductwork and climate control systems are hidden, and you'll find that the process of achieving satisfactory indoor air quality is complex and mysterious to most consumers. (diamondcertified.org)
- Fortunately, a qualified Monterey County or San Benito County indoor air quality contractor can assess the special needs of your home and offer an array of modifications or installations to ensure that the air in your home is as clean and comfortable as possible. (diamondcertified.org)
- If your current air quality system does not satisfy you in all these areas, you need not suffer through sub-par home air quality, and in the case of a toxic home environment, it may be downright dangerous to neglect the problem. (diamondcertified.org)
- The most common service that air quality contractors provide is improving the comfort of a home environment. (diamondcertified.org)
- It's hard to put a price tag on the comfort and well being afforded by such air quality upgrades. (diamondcertified.org)
- Fortunately, if your home has uneven heating or cooling, a licensed air quality contractor in Monterey County or San Benito County can test and locate any duct leaks using an Infiltrometer. (diamondcertified.org)
- The two year small study offered data after researchers monitored air quality for 12 weeks in the homes of patients who had respiratory problems and compared it to outdoor air quality. (healthcentral.com)
- Seminar room for analysing air quality and thermal comfort. (chalmers.se)
- Many different types of studies can be carried out here into energy use, control, thermal comfort and air quality. (chalmers.se)
Produces1
- An electric voltage applied within the ISD produces an ionisation current. (bfs.de)
System13
- Painting and drying of car bodies produce gaseous pollutants that have to be removed from the air depending on the paint system and statutory requirements. (environmental-expert.com)
- Once we installed the Plasma Air system, all of those problems went away. (plasma-air.com)
- Some air cleaning devices are designed to be installed in the ductwork of a home's central heating, ventilating and air-conditioning (HVAC) system to clean the air in the whole house. (epa.gov)
- If your current heating or air conditioning system does not deliver the comfort you desire, you need not resign yourself to a subpar home environment. (diamondcertified.org)
- The Department of Energy states that a typical duct system loses 25-40% of the furnace, heat pump, or air conditioning unit's energy output. (diamondcertified.org)
- Air ionization monitor system. (ebscohost.com)
- Because they sample large volumes of air from different areas of the building, their placement in the system must be planned carefully. (ecmag.com)
- In a video posted on Sunday, Senior Pastor Luke Barnett and Chief Operations Officer Brendon Zastrow announce happily that the church has installed a new air-purification system that kills 99.9 percent of the coronavirus. (phoenixnewtimes.com)
- The system achieves this bit of magic with air "ionization," a word that the pair mangle as they try to pronounce it. (phoenixnewtimes.com)
- How much air a system can process in a set time would play a role. (phoenixnewtimes.com)
- Clean Air EXP's website states that its home system takes a few hours to purify the air: "Most homes see a 90% reduction of particulates and contaminants within 4 hours, and 99.8% reduction in 6 hours or less. (phoenixnewtimes.com)
- A larger, commercial system can purify more air than a home unit, presumably. (phoenixnewtimes.com)
- Also, saying attendees would be "safe and protected" when they come to the rally overstates the ability of any air-purifying system to prevent transmission by infected people in a crowd. (phoenixnewtimes.com)
Monitors1
- There are so many different types of monitors to detect different things in the air of homes, whether it be gas or smoke, in order to be protected numerous monitors are needed. (bartleby.com)
Atmospheric3
- However, ambient ionization methods employing atmospheric plasmas typically require relatively high operation voltages and power, thus limiting their applicability in combination with fieldable mass spectrometers. (springer.com)
- The air-liquid (a-l) interfacial chemistry of glyoxal is of great interest in atmospheric chemistry. (nature.com)
- Secondary organic aerosol (SOA) formation occurring at the air-liquid (a-l) interface is important in atmospheric chemistry and its impact on global climate modeling. (nature.com)
Emission1
- Air purification and emission reduction have taken their place at the heart of the Entsorga-Enteco show in Cologne (27-30 October 2009), alongside waste and water management. (environmental-expert.com)
Statistically significant3
- A reduction of dust levels by 13% from negative air ionisation was found and the difference was statistically significant. (aaem.pl)
- Respirable dust levels measured in one building declined by 20% during ionisation, but this difference was not statistically significant. (aaem.pl)
- The correlation coefficients between the naphthol concentrations in urine and the breathing-zone air concentrations of naphthalene were statistically significant, varying in the range of 0.64--0.75 for 1-naphthol and 0.70--0.82 for 2-naphthol. (nih.gov)
Detectable1
- The presence of hydrocarbons is detectable by burning the sampled gas in an air-hydrogen flame. (eurekalert.org)
Discharge1
- The tubes should not be subjected to temperatures exceeding 140º F. The supply air discharge of most gas and oil-fired furnaces can exceed 140º F, while hot water coils or electrical reheat coils typically don't exceed 110º F. (plasma-air.com)
Chromatography1
- Naphthalene homologues in air and their metabolites in urine samples were identified by gas chromatography-mass spectrometry. (nih.gov)
Mass2
- Continuous negative air ionization, over two generations, was found to result in depletion of thymus mass when compared with control values. (springer.com)
- Ambient plasma ionization mass spectrometry (MS) is finding effective use as part of the analytical methodologies being tested for next-generation space module environmental analysis. (springer.com)
Smoke1
- Smoke drifted from underneath the roof, causing my dog to sniff the air and look around, quite confused. (bartleby.com)
Contamination1
- Diarrhea* 5 feet+ 160+ feet *As a result of toilet water aerosolization, air contamination in toilets need to be effectively sterilized and contained. (slideshare.net)
Cleaner2
- What Types of Pollutants Can an Air Cleaner Remove? (epa.gov)
- The Austin Air A250 cleaner is the best choice for you and your family. (appliancesconnection.com)
Processes2
- Dürr Environmental and Energy Systems optimizes exhaust air purification for the automotive industry and perfectly coordinates it with the latest drying and painting processes. (environmental-expert.com)
- The little circles show where ionization processes occur. (bionity.com)
Kerma1
Dust1
- During stage 1, air passes through a cotton permafilt pre-filter, which captures particles easily seen by the naked eye, such as large dust and pet dander particles. (appliancesconnection.com)
Radioactive1
- Results of on-site sampling performed by the NRC, ORNL, and a DOE contractor found significant levels of radioactive materials in the groundwater, soils, and air. (cdc.gov)
Concentrations3
- The ionizations constant of a very weak acid, HA is 4.0 × 10 − 9 .Calculate the equilibrium concentrations of H 3 O + , A ‒ and HA in a 0.040M solution of the acid. (bartleby.com)
- Concentrations of naphthalene and naphthols in breathing-zone air during a workshift and 1-naphthol and 2-naphthol in urine collected after the workshift were determined for 102 male workers. (nih.gov)
- The time-weighted average concentrations of naphthalene and naphthols in the breathing-zone air showed that the exposure level of the workers was rather low. (nih.gov)
Contaminants present1
- As well as a manual mode, with electronic AeraSmart sensors, the Fellowes AeraMax DX55 has auto mode allows the unit to regulate its speed according to the actual amount of particles and gaseous contaminants present in the air. (healthy-house.co.uk)
Electrodes1
- According to the European Norm DIN EN ISO 2560, there are a total of eight different types of coated stick electrodes for arc welding of unalloyed steels and fine-grained steel. (voestalpine.com)
Negative3
- Negative air ionization therapy is the use of air ionizers as an experimental non-pharmaceutical treatment for seasonal affective disorder (SAD) and mild depression. (wikipedia.org)
- The effect of negative air ionisation was studied in three Norwegian poultry confinement buildings with compact cages for laying hens on different farms. (aaem.pl)
- On UV-off days, ward air passed in parallel through a control animal enclosure and a similar enclosure containing negative ionizers. (whiterose.ac.uk)
