搜索结果: 1-15 共查到“理学 Substances”相关记录29条 . 查询时间(0.08 秒)
Precarious Matters/Prekare Stoffe.The History of Dangerous and Endangered Substances in the 19th and 20th Centuries
Precarious Matters Prekare Stoffe Dangerous Endangered Substances
2015/3/26
Precarious Matters/Prekare Stoffe.The History of Dangerous and Endangered Substances in the 19th and 20th Centuries.
Long-range transportation and deposition of chemical substances over the Northern Japan Alps mountainous area
mountain snow chemical components cross-border pollution acid snow anthropogenic contaminants
2017/4/11
The chemical compositions in the snow layers of vertical snow samples collected from six sites in the central mountainous
area, Japan, during early spring 2004 were analyzed to investigate the long-r...
Comparative study on humic substances isolated in thermal groundwaters from deep aquifers below 700 m
Pannonian Basin thermal water geothermal energy deep aquifer aquatic humic substances
2017/4/11
Main objectives of this study were to investigate whether humic substances (HS) exist in hot groundwater from deep
basinal aquifers waters and to provide basic knowledge on humic (HA) and fulvic acid...
Characterization of Humic Acid-like Substances Extracted from Atmospheric Falling Dust Using Py-GC-MS
Atmospheric falling dust Humic acid-like substances Py-GC-MS Source
2016/3/28
Humic acid-like substances (HALS) are heterogeneous macromolecules having a range of physicochemical properties and
exhibiting different reactivities in environmental systems. However, to study the H...
Quantifying the contributions to stratospheric ozone changes from ozone depleting substances and greenhouse gases
stratospheric ozone ozone depleting substances greenhouse gases
2010/9/21
A state-of-the-art chemistry climate model coupled to a three-dimensional ocean model is used to produce three experiments, all seamlessly covering the period 1950–2100, forced by different combinatio...
Humic-like substances in fresh emissions of rice straw burning and in ambient aerosols in the Pearl River Delta Region, China
Humic-like substances rice straw burning ambient aerosols the Pearl River Delta Region
2010/8/16
HUmic-LIke Substances (HULIS) are an abundant unresolved mixture of organic compounds present in atmospheric samples. Biomass burning (BB) has been recognized as an important primary source of HULIS, ...
Effects of Protease-resistant Antimicrobial Substances Produced by Lactic Acid Bacteria on Rumen Methanogenesis
Methane Production Lactic Acid Bacteria In vitro Fermentation
2016/5/4
Effects of protease-resistant antimicrobial substances (PRA) produced by Lactobacillus plantarum and Leuconostoc citreum on rumen methanogenesis were examined using the in vitro continuous methane qua...
Evidence for geochemical control of iron by humic substances in seawater
geochemical control iron by humic substances in seawater
2014/4/17
A new method, based on the direct detection of iron-humic substance (HS) species by cathodic stripping voltammetry (CSV), is used to determine the iron binding capacity and complex stability of fulvic...
Hypolimnetic oxygen consumption by sediment-based reduced substances in former eutrophic lakes
Hypolimnetic oxygen consumption sediment-based reduced substances former eutrophic lakes
2014/4/16
We quantified the areal hypolimnetic mineralization rate (AHM; total areal hypolimnetic oxygen depletion including the formation of reduced substances) in two formerly eutrophic lakes based on 20 yr o...
The municipal solid waste landfill as a source of ozone-depleting substances in the United States and United Kingdom
municipal solid waste landfill ozone-depleting substances United States United Kingdom
2010/2/21
This study provides observation-based national estimates of CFC-11, CFC-12, CFC-113, and 1,1,1-trichloroethane emissions for the United States (US) and United Kingdom (UK) from municipal solid waste (...
Chirality and the origin of atmospheric humic-like substances
Chirality atmospheric humic-like substances origin
2010/2/21
Aerosol water extracts and atmospheric humic-like substances (HULIS) obtained from PM2.5-fraction aerosol samples collected in a rural/continental background environment and in an urban environment in...
Analysis of Risedronate and Related Substances by Ion-Pair Reversed-Phase High-Performance Liquid Chromatography with Evaporative Light-Scattering Detection
Analysis Ion-Pair Reversed-Phase High-Performance Liquid Chromatography Light-Scattering Detection
2010/9/17
A simple method has been developed for the analysis of risedronate and related substances by ion-pair reversed-phase high-performance liquid chromatography (RPLC) with evaporative light-scattering det...
Capillary Electrophoretic Determination of Selected Phenolic Compounds in Humic Substances of Well Waters and Fertilizers
Phenolic Compounds Humic Substances Waters
2010/9/20
Humic substances (HS) from well waters, fertilizers, and synthetic phenolic polymers were characterized by elemental and UV-VIS spectroscopic analyses. Capillary zone electrophoresis (CZE) with UV ab...
Modeling the transport of very short-lived substances into the tropical upper troposphere and lower stratosphere
very short-lived substances tropical upper troposphere lower stratosphere
2009/12/31
The transport of very short-lived substances into the tropical upper troposphere and lower stratosphere is investigated by a three-dimensional chemical transport model using archived convective updraf...
Mass Balance of Dissolved Inorganic Substances in Three Representative Basins in Sweden
ass Balance Dissolved Inorganic Substances Three Representative Basins
2009/10/28
During the International Hydrological Decade six representative basins were
operated in Sweden. One of these represented an extensive raised bog area,
Komosse, southwest of Lake Vattern. Another bas...