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Desorption of polycyclic aromatic hydrocarbons from aged and unaged charcoals with and without modification of humic acids
Desorption Charcoal PAHs Aging
2013/12/12
Desorption of pyrene and phenanthrene, from two charcoals and humic acid preloaded charcoals werestudied. Desorption occurred obviously in two fractions, with rapid and slow desorption rate constantra...
Evaluating Toxicity of Extracted Destruxin from Metarhizium Anisopliae Against Citrus Leafminer, Phyllocnistis citrella
Destruxin Metarhizium anisopliae citrus leafminer Phyllocnistis citrella microbial agent
2010/12/22
Problem statement: The fungus, Metarhizium anisopliae (Metschnikoff) Sorokin produces some cyclic peptide toxins, destruxins, which exhibit a variety of insecticidal actions. Citrus leafminer, Phylloc...
Representative Particle Size of Sediment in Storm Sewer Inlets
Bimodal and unimodal mode robust estimator sieve analysis
2010/12/22
Problem statement: The aim of this study was examine the representative particle size of noncohesive sediment samples collected from different storm sewer inlets in residential catchments within Kuwai...
Na/Ca variability in coral skeletons
coral skeleton Na/Ca ratio Mg/Ca ratio Sr/Ca ratio S/Ca ratio marine aragonite
2017/8/9
In aragonitic coral skeletons, the Na/Ca molar ratio is clearly higher than any other minor- or trace-element/Ca molar ratio (i.e., Na/Ca > Sr/Ca ≥ S/Ca ≥ F/Ca ≈ Mg/Ca). However, little attention has ...
Study on the Effect of Allylisothiocyanate Formulations on Three Lepidopterous Insect Larvae, the Diamond Back Moth, Plutella xylostella (L.), the Small Cabbage White Butterfly, Pieris rapae (L.) and Tobacco Cut Worm, Spodoptera litura Fabr
Allylisothiocyanate fumigant activity spray application bioassay cruciferous insect larvae
2010/12/22
It was concluded that the AITC oil showed promise findings and may be a good alternative to old fumigant “phosphine”. The others were found efficient on the spray application bioassays but the mixture...
Diurnal and Seasonal Air Ion Variability at Rural Station Ramanandnagar (17°2N, 74°E), India
Gerdien condenser Transpiration Vegetation Temperature inversion Radio-active aerosol
2016/3/29
High-energy radiations, such as alpha and beta particles or gamma radiation, ionize air molecules into pairs of positive
ions and free electrons. The diurnal and seasonal variations of these air ions...
A Wide-Range Particle Spectrometer for Aerosol Measurement from 0.010 μm to 10 μm
Aerosol spectrometer Differential mobility analyzer Condensation particle counter Laser particle spectrometer
2016/3/29
The Wide-range Particle Spectrometer (WPS™) is a recently introduced commercial instrument with the unique
capability to measure size distributions of aerosols from 0.01 to 10 μm in diameter. T...
Chemical Characterization and Source Apportionment of Submicron (PM1) Aerosol in Kanpur Region, India
PM1 Source apportionment PCA UNMIX Anions Elements
2016/3/29
PM1 (particles having aerodynamic diameter < 1.0 μm) concentrations were measured at a sampling site inside the Indian
Institute of Technology (IIT) Kanpur campus for 11 months from July, 2008–May, 2...
Exposure to Particulate Matter in Vehicle Cabins of Private Cars
PM10 PM2.5 PM1 Ultrafine particles In-vehicle exposure
2016/3/29
A growing number of studies indicate the significance of short-term exposures to airborne particulate matter, such as
those occurring in a vehicle cabin. In this study, PM10, PM2.5, PM1 concentration...
Emissions of Polychlorinated Dibenzo-p-dioxin and Polychlorinated Dibenzofuran from Motorcycles
PCDD/F Motorcycle Lubricant
2016/3/29
This study presents the first investigation of polychlorinated dibenzo-p-dioxin and polychlorinated dibenzofuran
(PCDD/F) emission from (six 2-stroke and six 4-stroke engine) motorcycles using chassi...
Green Methodologies to Test Hydrocarbon Reservoirs
Unconventional well testing injection testing wireline formation testing surface emissions
2010/12/21
Problem statement: The definition and the economic viability of the best development strategy of a hydrocarbon reservoir mainly depend on the quantity and type of fluids and on the well productivity. ...
采用富集因子法评价了浙江慈溪地区不同成土时间表层土壤元素Hg的污染程度。结果表明,该地区成土过程中土壤重金属元素Hg污染程度一直增加,其中:成土前200年元素Hg污染程度缓慢增加,随后急剧上升,近1 000年时污染程度最高;表层土壤元素Hg质量是自然积累和人为污染叠加的结果,近1 000年表层土壤元素Hg人为污染量最多,约占Hg其总质量的83%。
磷-胺-醛树脂型阻燃剂处理落叶松的热分析及其动力学
Broido方程 落叶松 热分析
2009/11/10
将落叶松用一系列磷-胺-醛树脂型阻燃剂进行阻燃处理,所得阻燃落叶松采用热分析、锥形量热研究其热解行为,用氧指数、剩炭率、热释放速率、总热释放量等参数表征它的阻燃性能,并用Broido方程计算落叶松的动力学参数. 结果发现,阻燃落叶松氧指数、剩炭率增加,热释放速率、总热释放量降低,表明经阻燃剂处理的落叶松燃烧性降低. 落叶松经阻燃剂处理后,热解活化能降低很多,表明阻燃剂对落叶松热解具有催化作用,其主...
生物过滤塔降解含乙苯废气动力学模型
生物过滤塔 含乙苯废气 动力学模型
2009/11/10
以陶粒作为生物过滤床的填料净化含乙苯废气. 通过对乙苯降解过程的分析,在稳态条件下建立了生物膜内Dx微元上的物质平衡方程. 并通过适当假设条件,将模型进行简化求解,得出了零级反应方程及一级反应方程. 用实验数据对方程进行了拟合,结果表明,生物过滤塔对乙苯的生物降解过程为零级反应扩散限制过程. 以葡萄球菌(Staphylococcus)为乙苯降解菌,停留时间大于28.3 s、气体流量小于1 m3/h...