搜索结果: 1-15 共查到“理学 trend”相关记录47条 . 查询时间(0.15 秒)
中国农业大学功能核酸研究团队在Angew. Chem. Int. Ed.、TrAC-Trend Anal. Chem.期刊连续提出功能核酸领域两个重要概念（图）
中国农业大学 功能核酸 重要概念 核酸金属化 核酸沉积
2019/12/16
近日，中国农业大学食品科学与营养工程学院/北京食品营养与人类健康高精尖创新中心功能核酸研究团队在化学领域顶级期刊《Angewandte Chemie-International Edition》（2018-2019年IF 12.257）和《TrAC-Trends in Analytical Chemistry》（2018-2019年IF 8.428）上在线发表了两篇综述文章论述“功能核酸裁剪”和“...
Analyzing vegetation dynamic trend on the Mongolian Plateau based on the Hurst exponent and influencing factors from 1982-2013
remote sensing GIMMS NDVI3g vegetation dynamic trend Hurst exponent residual trend analysis Mongolian Plateau
2018/4/9
This study analyzed the spatial and temporal variations in the Normalized Difference Vegetation Index (NDVI) on the Mongolian Plateau from 1982-2013 using Global Inventory Modeling and Mapping Studies...
Numerical simulation of groundwater and early warnings from the simulated dynamic evolution trend in the plain area of Shenyang, Liaoning Province (P.R. China)
roundwater table Groundwater exploitation
2018/3/23
Groundwater level is the most direct factor reflecting whether groundwater is in a virtuous cycle. It is the most important benchmark for deciding whether a balance can be struck between groundwater d...
A Simple Model of Unbounded Evolutionary Versatility as a Largest-Scale Trend in Organismal Evolution
Largest-Scale Trend Organismal Evolution
2015/7/31
The idea that there are any large-scale trends in the evolution of biological organisms is
highly controversial. It is commonly believed, for example, that there is a large-scale trend in
evolution ...
Persistent Organic Pollutants (POPs),Polycyclic Aromatic Hydrocarbons (PAHs),and Plastics:Examples of the Status, Trend,and Cycling of Organic Chemicals of Environmental Concern in the Ocean
Persistent Organic Pollutants (POPs) Polycyclic Aromatic Hydrocarbons (PAHs) Plastics:Examples of the Status Trend Cycling Organic Chemicals Environmental Concern in the Ocean
2015/7/17
Four decades of research have provided a reasonable understanding of the outline of the biogeochemical cycles of persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) in coa...
Analysis of historical trend of carotenoid concentrations in sediment cores from Lake Shinji, Japan
eutrophic oligohaline lake ecosystem phytoplankton carotenoids sediment
2017/4/11
The historical trend of the concentrations of carotenoids originating from phytoplankton in sediment cores collected at
two sites in Lake Shinji, a eutrophic oligohaline lake was investigated to clar...
Newtonian limit and trend to equilibrium for the relativistic Fokker-Planck equation
Relativistic Fokker-Planck equation Newtonian limit Trend to equilibrium
2011/9/21
Abstract: The relativistic Fokker-Planck equation, in which the speed of light $c$ appears as a parameter, is considered. It is shown that in the limit $c\to\infty$ its solutions converge in $L^1$ to ...
中法合作高能宇宙线和宇宙中微子探测望远镜TREND投入运行
中国 法国 合作 高能宇宙线 宇宙 微子探测望远镜TREND 运行
2011/2/15
作为目前国内工作在最低频率（频率50－200MHz）的大型射电望远镜阵列，21CMA利用其独特的技术优势和地理位置，在主攻首要科学目标“宇宙第一缕曙光探测”的同时，探索在低频射电波段观测宇宙射线继而捕获宇宙τ中微子的可能性，近期建成了国内首个低频射电高能宇宙射线和中微子探测望远镜TREND（Tianshan Radio Experiment for Neutrino Detection）。TREN...
Solar radiation trend across China in recent decades: a revisit with quality-controlled data
Solar radiation China recent decades quality-controlled data
2011/1/19
Solar radiation is one of the most important factors affecting climate and environment, and its long-term variation is of much concern in climate change studies. In the light of the limited number of ...
Trend and characteristics of atmospheric emissions of Hg, As, and Se from coal combustion in China, 1980–2007
atmospheric Hg As Se coal combustion
2010/12/28
Emissions of hazardous trace elements in China are of great concern because of their negative impacts on local air quality as well as on regional environmental health and ecosystem risks. In this pape...
A decadal regional and global trend analysis of the aerosol optical depth using a data-assimilation grade over-water MODIS and Level 2 MISR aerosol products
the aerosol optical depth a data-assimilation grade over-water MODIS Level 2 MISR aerosol products
2010/11/30
Using the ten-year (2000–2009) Data-Assimilation (DA) quality Terra MODIS and MISR aerosol products, as well as 7 years of Aqua MODIS, we studied both regional and global aerosol trends over oceans. T...
Spectroscopic Studies of Solar Corona VI: Trend in Line-width Variation of Coronal Emission Lines with Height Independent of the Structure of Coronal Loops
Sun corona coronal structures emission line widt techniques spectroscopy
2010/9/16
We have obtained spectroscopic observations in coronal emission lines by choosing two lines simultaneously, one [Fe x] 6374Å and the other [Fe xi] 7892Å or [Fe xiii] 10747Å or [Fe xi...
Multi-annual changes of NOx emissions in megacity regions: nonlinear trend analysis of satellite measurement based estimates
NOx emissions megacity regions nonlinear trend analysis satellite measurement
2010/9/21
Hazardous impact of air pollutant emissions from megacities on atmospheric composition on regional and global scales is currently an important issue in atmospheric research. However, the quantificatio...
HFC-23 (CHF3) emission trend response to HCFC-22 (CHClF2) production and recent HFC-23 emission abatement measures
HFC-23 (CHF3) emission trend HCFC-22 (CHClF2) production recent HFC-23 emission abatement measures
2010/9/1
We present observations of lower-tropospheric mole fractions of HFC-23 measured by "Medusa" GC/MSD instruments from ambient air sampled in situ at the Advanced Global Atmospheric Gases Experiment (AGA...
Trend analysis of the wave storminess: the wave direction
Trend analysis of the wave storminess the wave direction
2010/9/10
In this paper changes in the wave pattern of the Catalan coast are analyzed in terms of wave storminess and wave direction based on series of 44 years of hindcast wave data. The analysis is performed ...