搜索结果: 1-15 共查到“理学 Reactivity”相关记录30条 . 查询时间(0.078 秒)
Effect of discontinuities in Kohn-Sham-based chemical reactivity theory
Effect of discontinuities Kohn-Sham-based chemical reactivity theory Fukui function
2012/2/29
We provide a new derivation of a formula for the Fukui function of density-functional chemical reactivity theory which incorporates the discontinuities in the Kohn-Sham reference system. Orbital relax...
Hierarchy of local chemical reactivity indices originated from a local energy
Hierarchy local chemical reactivity local energy chemical hardness
2011/8/11
Abstract: The traditional way of defining a local measure of chemical hardness has several drawbacks, which undermine the applicability of that local hardness concept. We propose a new approach to thi...
Hydroxyl radical reactivity at the air-ice interface
Hydroxyl radical reactivity air-ice interface
2010/2/1
Hydroxyl radicals are important oxidants in the atmosphere and in natural waters. They are also expected to be important in snow and ice, but their reactivity has not been widely studied in frozen aqu...
双(1-甲基咪唑-2-基)甲酮、双(1-甲基咪唑-2-基)甲烷及双(1-甲基咪唑-2-基)乙烯与第六族羰基金属化合物的反应研究（Reactivity of (Mim)2C=O, (Mim)2CH2 and (Mim)2C=CH2 (Mim=1-Methylimidazole-2-yl) with Group 6 Metal Carbonyl Complexes）
1-甲基咪唑 晶体结构 第六族羰基金属化合物
2010/8/18
本文研究了羰基钼(钨)与双(1-甲基咪唑-2-基)甲酮和双(1-甲基咪唑-2-基)甲烷以及双(1-甲基咪唑-2-基)乙烯的反应，获得了6个双齿螯合的双(1-甲基咪唑-2-基)甲酮，双(1-甲基咪唑-2-基)甲烷和双(1-甲基咪唑-2-基)乙烯四羰基金属衍生物，以及1个单齿配位的双(1-甲基咪唑-2-基)乙烯五羰基钨化合物。它们的结构通过红外，核磁以及X-射线单晶衍射分析得到确证。所有这些新化合物的...
Toward a general parameterization of N2O5 reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride
N2O5 reactivity aqueous particles particle liquid water nitrate chloride
2009/11/19
The heterogeneous reaction of N2O5 on mixed organic-inorganic aerosol particles was investigated using an entrained aerosol flow tube coupled to a custom-built chemical ionization mass spectrometer. L...
A flow-tube based laser-induced fluorescence instrument to measure OH reactivity in the troposphere
flow-tube based laser-induced fluorescence instrument OH reactivity troposphere
2010/2/8
A field instrument utilising the artificial generation of OH radicals in a sliding injector flow-tube reactor with detection by laser-induced fluorescence spectroscopy has been developed to measure th...
An experimental technique for the direct measurement of N2O5 reactivity on ambient particles
experimental technique direct measurement N2O5 reactivity ambient particles
2010/2/8
An experimental approach for the direct measurement of trace gas reactivity on ambient aerosol particles has been developed. The method utilizes a newly designed entrained aerosol flow reactor coupled...
Airborne measurement of OH reactivity during INTEX-B
Airborne measurement OH reactivity INTEX-B
2009/3/12
The measurement of OH reactivity, the inverse of the OH lifetime, provides a powerful tool to investigate atmospheric photochemistry. A new airborne OH reactivity instrument was designed and deployed ...
DRIFTS and Knudsen cell study of the heterogeneous reactivity of SO2 and NO2 on mineral dust
DRIFTS Knudsen cell study heterogeneous reactivity SO2 NO2 mineral dust
2009/3/11
The heterogeneous oxidation of SO2 by NO2 on mineral dust was studied using Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) and a Knudsen cell. This made it possible to characteri...
The weekend effect within and downwind of Sacramento – Part 1: Observations of ozone, nitrogen oxides, and VOC reactivity
Sacramento ozone nitrogen oxides VOC reactivity
2008/12/23
Day-of-week patterns in human activities can be used to examine the ways in which differences in primary emissions result in changes in the rates of photochemical reactions, and the production of seco...
Ozone production and hydrocarbon reactivity in Hong Kong, Southern China
Ozone production hydrocarbon reactivity Hong Kong Southern China
2008/11/28
Data obtained in Hong Kong during the Hong Kong and the Pearl River Delta (PRD) Pilot Air Monitoring Study in autumn 2002 are analyzed to unravel the relationship between ground-level ozone (O3), poll...
The Comparative Reactivity Method – a new tool to measure total OH Reactivity in ambient air
OH Reactivity ambient air
2008/11/5
Hydroxyl (OH) radicals play a vital role in maintaining the oxidizing capacity of the atmosphere. To understand variations in OH radicals both source and sink terms must be understood. Currently the o...
VOC reactivity in central California: comparing an air quality model to ground-based measurements
VOC reactivity central California air quality model ground-based measurements
2008/10/27
Volatile organic compound (VOC) reactivity in central California is examined using a photochemical air quality model (the Community Multiscale Air Quality model; CMAQ) and ground-based measurements to...
The Relation between Limestone Properties and Quicklime Reactivity
Relation Limestone Properties Quicklime Reactivity
2012/3/28
Within the scope of a research project supported by the German Federation of Industrial Cooperative Research Associations "Otto von Guericke" (AiF) the influence of limestone properties on the reactiv...
Delayed Reactivity Quicklime in sludge treatment: an original lime application for the conditioning and hygienisation of urban waste water sludge
Delayed Reactivity Quicklime sludge treatment original lime application conditioning hygienisation urban waste water sludge
2012/3/28
Delayed Reactivity Quicklime in sludge treatment: an original lime application for the conditioning and hygienisation of urban waste water sludge.