نتایج جستجو برای: d square analysis

تعداد نتایج: 3373084  

2015
Sudipta Kanungo Binghai Yan Patrick Merz Claudia Felser Martin Jansen Rudolf Hoppe

Local environments and valence electron counts primarily determine the electronic states and physical properties of transition metal complexes. For example, square-planar surroundings found in transition oxometalates such as curprates are usually associated with the d or d electron configuration. In this work, we address an exotic square-planar mono-oxoanion [IrO4] as observed in Na4IrO4 with I...

2007
Yue-Sheng Li Giovanna Raso Zheng-Yuan Zhao Yong-Kang He Magda K. Ellis Donald P. McManus

Construction of the Three Gorges Dam across the Yangtze River will substantially change the ecology of the Dongting Lake in southern China. In addition, the Chinese Central and Hunan Provinces' governmental authorities have instigated a Return Land to Lake Program that will extend the Dongting Lake surface area from the current 2,681 km2 to 4,350 km2. The previous construction of embankments an...

2015
Changchun Huang Hao Yang Yunmei Li Jun Zou YiMing Zhang Xia Chen Yin Mi Mingli Zhang

Humans have had a significant impact on the terrestrial pedosphere through activities such as agriculture and urbanization. The effects of human activities on land use and the related environmental changes were investigated through point and areal studies surrounding Meiliang Bay, which is an open area of extreme eutrophication in Taihu Lake, China. This study used remote sensing and environmen...

2008
Ronghua Ma Hongtao Duan Xiaohong Gu Shouxuan Zhang

We have measured the water quality and bio-optical parameters of 94 samples from Taihu Lake in situ and/or in the lab between June 10-18, 2007. A transparencyassisted decision tree was developed to more accurately divide the aquatic vegetation zone into a floating vegetation-dominated zone and a submerged vegetation-dominated zone, whose respective present biomass retrieval models were easily d...

Journal: :Public health nutrition 2014
Andrea C Nabak Rachael Erin Johnson Nicholas S Keuler Karen E Hansen

OBJECTIVE Our objective was to determine whether a questionnaire can identify individuals with vitamin D insufficiency (VDI). DESIGN Women completed the Vitamin D & Sun (VIDSUN) questionnaire and we measured their serum 25-hydrocyvitamin D (25(OH)D) levels. We assessed the sensitivity and specificity of the questionnaire to identify VDI (25(OH)D level <50 nmol/l). SETTING Clinical Research ...

2002
Tomas Vitvar Douglas A. Burns Gregory B. Lawrence Jeffrey J. McDonnell David M. Wolock

A method for estimation of mean baseflow residence time in watersheds from hydrograph runoff recession characteristics was developed. Runoff recession characteristics were computed for the period 1993–96 in the 2 km2 Winnisook watershed, Catskill Mountains, southeastern New York, and were used to derive mean values of subsurface hydraulic conductivity and the storage coefficient. These values w...

This paper investigates the enrollment behavior of the students of Sylhet International University (SIU), a private university in Bangladesh. The researcher conducted reliability test, descriptive analysis, and chi-square tests and identified a number of key findings as to the enrollment behavior of students through collecting data from a sample of 584 students of SIU. The research shows that t...

1991
S. Bhargava Chandrashekar Adiga D. D. Somashekara

where df{n) denotes the number of divisors of n, d = i (mod 4). In literature there are several proofs of (1) and (2). For instance, M. D. Hirschhorn [7; 8] proved (1) and (2) using Jacobi's triple product identity. S. Bhargava & Chandrashekar Adiga [4] have proved (1) and (2) as a consequence of Ramanujan's ^ summation formula [10]. Recently R. Askey [2] has proved (1) and also derived a formu...

Journal: :Journal of Computational Chemistry 2001
Marcos R. Betancourt Jeffrey Skolnick

Current ab initio structure-prediction methods are sometimes able to generate families of folds, one of which is native, but are unable to single out the native one due to imperfections in the folding potentials and an inability to conduct thorough explorations of the conformational space. To address this issue, here we describe a method for the detection of statistically significant folds from...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید