identification of biased environmental data
HAZARDOUS AIR POLLUTANT HANDBOOK: Measurements, Properties, and Fate in Ambient Air - Part 1 pps
Ngày tải lên :
11/08/2014, 09:21
... Board of the Journal of Environmental Forensics He recently served on the National Academy of Sciences/National Research Council Panel on Atmospheric Effects of Aviation Dr Spicer is a member of ... current database of information on the measured ambient concentrations of HAPs in urban areas of the U.S., and our current understanding of the atmospheric transformation products and lifetimes of ... Section 112(b) of 188 HAPs, consisting of both individual chemicals and groups of chemical substances Table 1.1 provides the current list of the 188 HAPs along with explanatory notes, as of December...
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HAZARDOUS AIR POLLUTANT HANDBOOK: Measurements, Properties, and Fate in Ambient Air - Part 2 pps
Ngày tải lên :
11/08/2014, 09:21
... obscure emissions of HAPs to the atmosphere Table 2.1 also summarizes the properties reviewed for the various volatility classes of HAPs and the number of HAPs in each class Nineteen of the HAPs are ... table includes some of the data from Table 2.2, © 2002 by CRC Press LLC TABLE 2.1 Summary of HAP Categories with Defined Vapor Pressure Ranges, Relevant Properties, and Number of HAPs in Each Category ... because both groups of compounds are distributed over the entire polarizability range Because of the collection and analysis problems known to arise as a result of the water solubility of certain VOCs,...
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HAZARDOUS AIR POLLUTANT HANDBOOK: Measurements, Properties, and Fate in Ambient Air - Part 3 ppt
Ngày tải lên :
11/08/2014, 09:21
... molecular weight of the species.) Clearly, detection of very low concentrations is a prime requirement of any ambient method Chapter also shows that, for many of the HAPs, ambient data are nonexistent ... insufficient documentation of the ambient HAPs capabilities of long-path methods to merit inclusion of such methods in this database However, the potential for rapid determination of multiple HAPs is ... development of software to facilitate mass isolation has made commercial ion trap instruments capable of true MS/MS analysis Issues of cost and instrumental complexity limit the application of direct...
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HAZARDOUS AIR POLLUTANT HANDBOOK: Measurements, Properties, and Fate in Ambient Air - Part 4 pot
Ngày tải lên :
11/08/2014, 09:21
... Ambient data were compiled for the sum of these eight POM compounds The second stage of this survey of ambient HAP concentrations relied upon a recently assembled database of ambient monitoring data. 8 ... 38 out of carcinogenic PAHs measured (not dibenzo (a,h)-anthracene) Range of seasonal means is shown out of Range of seasonal means is shown out of Data from two cities pooled; winter data only ... molecular weight of the HAP in question The Year column in Table 4.1 indicates the period of data collection for each data source Note that, in some cases, the number of locations and number of samples...
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HAZARDOUS AIR POLLUTANT HANDBOOK: Measurements, Properties, and Fate in Ambient Air - Part 5 (end) docx
Ngày tải lên :
11/08/2014, 09:21
... lifetime of each HAP and the major processes affecting the lifetime The focus of this chapter is a summary of information on the products of HAP transformations and the persistence of HAPs in ... for 94 of the HAPs, for many of these compounds, the list of products is probably incomplete The transformation products listed in Table 5.1 cover a wide range of chemical compositions Many of the ... depending on the rigor of the experimental study For example, few studies have reported mass balances to document the completeness of the list of products This lack of product data represents a serious...
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Characterization and UV disinfection of tropical bacteria in ambient air
Ngày tải lên :
03/10/2015, 20:32
... knowledge of bacterial taxonomy Most of these commercially available methods are designed for clinical specimens, and not result in identification of many environmental isolates Identification of bacteria ... of E coli at UV-A intensity of 4.28 mW/cm2 82 Figure 4.24 Survival rates of E coli at UV-A intensity of 6.28 mW/cm2 82 Figure 4.25 The effect of UV-A intensity on disinfection rate constant of ... Conditioning UV-C wavelength of light is between 200 and 290 x List of Figures LIST OF FIGURES Page Figure 2.1 Formation of thymine dimers in bacteria cells 30 Figure 2.2 The schematic of TiO2 UV photo-excitation...
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NANOCOMPOSITES WITH UNIQUE PROPERTIES AND APPLICATIONS IN MEDICINE AND INDUSTRY ppsx
Ngày tải lên :
29/06/2014, 13:20
... Prediction of the Residual Behaviour of Impacted Composite Curved Panels Fig Scheme of the multi-scale methodology Finally the third step of the method is the prediction of the residual behaviour of ... vibrations of composite plates and detailed analysis of methods of joining Cf/C and Cf/SiC to metals are presented Applications of new materials: Studies are presented on the development of new ceramic ... at the scale of the microstructure, in order to estimate the residual response of the small-scale structure The second step of this methodology is the evaluation of the performance of the numerical...
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Fatigue and Fracture in an Aircraft Engine Pylon pdf
Ngày tải lên :
08/08/2014, 13:20
... (2) During failure of the inboard mid-spar connection the male lugs of the wing fitting moved outward from the throat of the lugs on the pylon fitting On the other hand, failure of the outboard ... shows a schematic of the outboard mid-spar connection with a cross-section of the intact fuse pin, and also the as-recovered fuse pin remnant, still in one of the male lugs of the wing fitting ... involved The NLR's investigation of the mid-spar components of the #3 engine pylon-to-wing connections proved to be an essential part of determining the cause of the accident and how it happened...
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Báo cáo y học: "TLR4 signalling in pulmonary stromal cells is critical for inflammation and immunity in the airways" pdf
Ngày tải lên :
12/08/2014, 14:20
... to the epithelium of the terminal bronchioles and alveoli After inhalation of LPS, nuclear translocation of NF-B was evident in bronchiolar epithelium of nontransgenic but not of transgenic mice ... high levels of LPS, the stromal recognition of LPS by TLR4 led to a robust Th2 response, indicating that in the presence of higher concentrations of LPS, stromal cell expression of TLR4 is sufficient ... authors of over 100 papers dealing with the use of mouse models to study the pathogenesis of asthma and cancer related immunosuppression The interest of their research group is on the role of antigen...
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Báo cáo y học: " First report of an HIV-1 triple recombinant of subtypes B, C and F in Buenos Aires, Argentina" potx
Ngày tải lên :
13/08/2014, 09:20
... laboratory work and wrote the manuscript with the help of LME MS did the follow up of the cohort of MSM CB helps in the data analysis and in the editing of the manuscript RM designed and coordinated the ... be construed as official, or as reflecting true views of the Department of the Army or the Department of Defense, or other organizations listed References 10 11 12 HIV Sequence Database Web Site: ... and phylogenetic confirmation of the HIV-1 triple recombinant of subtypes B, C and F Subtype structure and phylogenetic confirmation of the HIV-1 triple recombinant of subtypes B, C and F A) Bootscan...
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QCVN 06 : 2009BTNMT National technical regulation on hazardous substances in ambient air
Ngày tải lên :
18/05/2016, 15:06
... the arithmetic average of the values measured over a period of consecutive hours 1.2.3 24-hour average means the arithmetic average of the values measured over a period of (a day) 1.2.4 Annual ... average: means the arithmetic average of the average value of 24 hours measured over a period of one year TECHNICAL RETUTATION Maximum allowable concentration of harmful substances in ambient air ... 1.2 Interpretation of terms In this Regulation, the terms below are construed as follows: 1.2.1 An hour average: means the arithmetic average of the values measured in a period of one hour for the...
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ĐÁNH GIÁ sự hòa TRỘN GIỮA KHÍ và dầu TRONG hỗn hợp bôi TRƠN ổ TRỤC CHÍNH máy CÔNG cụ CNC TRONG ỐNG hòa TRỘN EVALUATION OF MIXTURE BETWEEN AIR AND OIL IN OIL – AIR LUBRICATION MIXTURE OF CNC MACHINE TOOL’S SPINDLE BEARING IN MIXTURE PIPE
Ngày tải lên :
08/06/2016, 12:57
... thermal behavior of a rolling element upon using oil–air mist lubrication," Journal of Materials Processing Technology 127 (2002) 191–198, 2002 [6] H M Shuyun Jiang, "Investigation of the High Speed ... Journal of Tribology, Vols 133 / 021101-1, 2011 [7] Yeau - Red Jeng, Pay Yau Huang, "Temperature rise of hybrid ceramic and steel ball bearings with oil - mist lubrication," Journal of Tribology, ... toán lựa chọn mô hình VOF (bài toán nhiều pha) hình 5, Sau lựa chọn thông số đầu vào cho dòng khí dầu giải thiết mục 4.2 Hình Lựa chọn loại toán Hình Lựa chọn mô hình VOF 746 Kỷ yếu hội nghị...
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A CFD study of hygro-thermal stresses distribution in tubular-shaped ambient air-breathing PEM micro fuel cell during regular cell operation
Ngày tải lên :
05/09/2013, 14:58
... dehumidification of the membrane may occur, resulting in deterioration of protonic conductivity In the extreme case of complete drying, local burnout of the membrane can result Figure shows profiles for ... relate the level of over- and undersaturation as well as the amount of liquid water present to the amount of water undergoing phase change In the present work, the procedure of Berning and Djilali ... performance of the fuel cell Thus, one of the greater challenges in the design of passive fuel cells is how to provide enough oxygen for the electrochemical reaction on the entire active surface One of...
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A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
Ngày tải lên :
05/09/2013, 14:58
... the magnitude of phase change inside the GDL, expressions are required to relate the level of over- and undersaturation as well as the amount of liquid water present to the amount of water undergoing ... independent of the grid size A computational quadratic finer mesh consisting of a total of 92305 nodes and 501867 meshes ware found to provide sufficient spatial resolution (Figure 2) The coupled set of ... self-humidifying effects of passive fuel cells are balanced by the transfer of heat and water to the ambient Optimal performance of air-breathing cells is therefore a complex function of ambient and load...
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