نتایج جستجو برای: si2
تعداد نتایج: 290 فیلتر نتایج به سال:
به منظور بررسی رابطه عملکرد گندم با ویژگیهای خاک، از جمله شوری و ph، پژوهشی در سال 90-91 در مزرعه نمونه ارتش استان گلستان انجام شد. در گام نخست، 101 نمونه از نیمرخ خاک مزرعه تهیه و انواع روشهای درونیابی زمینآمار (کریجینگ) با استفاده از شاخصههای آماری میزان دقت روشهای مختلف درونیابی در نرمافزارarcgis نسخه 9.3 تعیین شد. بدین منظور جهت درونیابی از روشهای کریجینگ معمولی (ok)، کریجینگ عمو...
This study aimed to investigate the kinetics of dietary GSH in gastrointestinal tract and effect on intestinal redox status weaned piglets. Forty-eight piglets with an average age 26 days body weight 7.7 kg were used this study. The divided into three treatment groups including control group a basal diet (CON) two supplemented 0.1% (LGSH) 1.0% (HGSH), respectively. did not contain any GSH. expe...
Atomic-resolution electron microscopy reveals that pillarlike silicon double columns exist in the hardening nanoprecipitates of AlMgSi alloys, which vary in structure and composition. Upon annealing, the Si2 pillars provide the skeleton for the nanoparticles to evolve in composition, structure, and morphology. We show that they begin as tiny nuclei with a composition close to Mg2Si2Al7 and a mi...
Notes for a talk in Stanford’s Arithmetic Dynamics Seminar, Apr. 29, 2014. This talk is an introduction to the theory of heights on projective varieties over local and global fields. I will also say something about canonical heights for a dynamical system, and a local-global formula for these. This material is from Chapters 1-2 of the book by Bombieri and Gubler on heights [BG]; also Silverman’...
NHC-stabilized 2-hydrophosphasilenes are obtained from 1,2-dihydro-2-chlorophosphasilanes as Si(iv) precursors by a NHC-assisted 1,2-elimination of HCl. The NHC-exchange of these compounds is demonstrated as a proof of donor acceptor bonding between NHC and the silicon centre of the "Si[double bond, length as m-dash]P" moiety. We have also explored the possibility of similar exchanges in NHC-st...
SI1: Sample characterization by HPLC and CW-EPR spectroscopy. Figure S1: (a) Anion exchange traces of purified single-stranded double-C T -labeled RNAs. (b) Spin concentration calibration curve. (c) RNA labelling efficiency. SI2: Examination of orientation selection. Figure S2: Highand low-power Q-band DEER on [13,28] RNA duplex. Figure S3: High-power Q-band DEER on different RNA samples. Figur...
We report the existence of two simple perfect square-cylinders of order 20 shown in Figs. 1 and 2. Dissected cylinders are associated with graphs which we call cyl-nets. A cyl-net is obtained from a dissected cylinder in the following way. The two rims of the cylinder are associated with two vertices which are called “source” and “sink,” respectively. Each horizontal line is associated with a v...
The interaction of many particles can lead to spectacular new phases of matter whose properties and collective excitations bear little resemblance to the individual particles and interactions. Understanding how the macroscopic state transforms from one phase to another provides key insights into the underlying physics. In this thesis, we study two poorly understood states: the Hidden Order (HO)...
The crop intercepted photosynthetically active radiation (PAR) and radiation use efficiency (RUE) vary markedly in different intercropping systems. The HHLA (horizontally homogeneous leaf area) and ERCRT (extended row crop radiation transmission) models have been established to calculate the intercepted PAR for intercrops. However, there is still a lack of study on the intercepted PAR and RUE u...
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