搜索结果: 16-30 共查到“理学 Index”相关记录207条 . 查询时间(0.494 秒)
High refractive index substrates for fluorescence microscopy of biological interfaces with high z contrast
Oxides Niobium Silicon Dioxide Xanthenes Lipid Bilayers Phosphatidylcholines Phosphatidylethanolamines Fluorescent Dyes Microscopy, Fluorescence Image Enhancement
2016/5/23
Total internal reflection fluorescence microscopy is widely used to confine the excitation of a complex fluorescent sample very close to the material on which it is supported. By working with high ref...
On the Refractive Index Correction In Luminescence Spectroscopy
Refractive Index Correction Luminescence Spectroscopy
2016/5/20
On the Refractive Index Correction In Luminescence Spectroscopy.
Influence of Quaternary Benzophenantridine and Protopine Alkaloids on Growth Performance, Dietary Energy, Carcass Traits, Visceral Mass, and Rumen Health in Finishing Ewes under Conditions of Severe Temperature-humidity Index
Heat Stress High-energy Diets Feed Efficiency Small Ruminants Ruminal Epithelial
2016/5/20
Twenty Pelibuey×Katahdin ewes (35±2.3 kg) were used to determine the effects of the consumption of standardized plant extract containing a mixture of quaternary benzophenanthridine alkaloids and proto...
Effect of Two Doses of Different Zinc Sources (Inorganic vs. Chelated form) on the Epithelial Proliferative Activity and the Apoptotic Index of Intestinal Mucosa of Early-weaned Pigs Orally Challenged with E. coli K88
Weaning Pig Zinc Oxide Small Intestine Apoptosis Mitosis
2016/5/4
The effect of two doses of different sources of zinc, inorganic (zinc oxide) or chelated (zinc glutamate chelate), on morphology and turn-over of the small intestine was assessed in early-weaned pigs ...
2015年12月17日，《自然》（Nature）出版集团发布了《2015年自然指数中国特刊》（Nature index 2015 China），基于自然指数的数据库，分析了从2012年1月1日至2014年12月31日期间的科研文章的作者单位信息，采用了加权分数式计量（Weighted Fractional Count, WFC）方法，对中国的200个顶级研究机构进行排名。
Association of body mass index and survival in pediatric leukemia: a meta-analysis
obesity pediatric leukemia relapse survival nutritional status
2018/11/28
Background: Obesity is a worldwide epidemic in children and adolescents. Adult cohort studies have reported an association between higher body mass index (BMI) and increased leukemia-related mortality...
On the derivation of an hourly local index to define the normal ionosphere
reference ionosphere ionospheric disturbance ionospheric indices
2015/9/30
In this paper an hourly local ionospheric index f n F 2 is proposed to define the normal level of the undisturbed
ionosphere. For the determination of this index a model is developed where the normal...
BOWEN’S ENTROPY-CONJUGACY CONJECTURE IS TRUE UP TO FINITE INDEX
BOWEN’S ENTROPY CONJUGACY CONJECTURE FINITE INDEX
2015/9/29
For a topological dynamical system (X, f), consisting of a continuous map f : X → X, and a (not necessarily compact) set Z ⊂ X, Bowen [2] defined a dimension-like version of entropy,hX(f, Z). In...
The experimental set-valued index of refraction of dielectric and anelastic media
dielectric anelastic splitting index of refraction
2015/9/28
The dielectric parameter, in the generalised Debye form, of all studied substances (Cole and Cole, 1941) contains a rational power of the imaginary frequency which implies that the index of refraction...
The analysis of the Standardized Precipitation Index in the Mediterranean area:large-scale patterns
Climate variability drought monitoring
2015/9/28
Problems related to the identification and monitoring of drought are investigated. In particular, drought conditions in Italy are examined using the Standardized Precipitation Index (SPI) on different...
The analysis of the Standardized Precipitation Index in the Mediterranean area:regional patterns
Rainfall observatory drought climate variability
2015/9/28
In the present paper we propose a method to assess regional drought by using rain-gauge observations. In particular, we analyse the rainfall on the Marche region. We diagnose drought by means of the S...
Retrieving leaf area index from multi-angular airborne data
LAI inversion POLDER HyMap multi-angular
2015/9/7
This work is aimed to demonstrate the feasibility of a methodology for retrieving bio-geophysical variables whilst at the same time fully accounting for additional information on directional anisotrop...
K-type geomagnetic index nowcast with data quality control
geomagnetic activity index real-time computing nowcast system
2015/8/27
A nowcast system for operational estimation of a proxy K-type geomagnetic index is presented. The system is based on a fully automated computer procedure for real-time digital magnetogram data acquisi...
Impact Factor, Citation Index, H-Index: are researchers still free to choose where and how to publish their results?
Impact factor Bibliometrics Citations Evaluation Ethics
2015/8/26
Over the last decade, the demand to evaluate the impact of any given research study, the credentials of a researcher, and the influence that any single research unit or agency has on the world of rese...
Location of Fraction-Saturated Areas in Watershed Using Empirically Calculated Topographical Index
VSA Water balance critical values shallow soils Shivalik region of India India
2015/8/14
In engineering practice, simple methods are important for predicting runoff from watersheds particularly for flood forecasting and water balance calculations. In the present study, it is illustrated t...