Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The paper describes a convenient and facile methodology for the synthesis of 2,5-diphenylthiophene derivatives.The environmentally friendly synthetic approach is supported by a one-pot tandem reaction process.All of the target products was confirmed by 1 H NMR, 13 C NMR and HRMS.On this basis, UV and fluorescence prop…
With constant development and prosperity of social economy, China's industrial domain has achieved great development, so has the chemical industry. During the specific process of chemical product manufacturing, corrosion of chemical equipment is a common phenomenon. How to effectively prevent corrosion is a significan…
این تحقیق به منظور شناسایی، تعیین درصد آلودگی، تراکم جمعیت و ترسیم نقشه پراکنش نماتود سیستی غلات بر اساس درونیابی با سامانه اطلاعات جغرافیایی (GIS)، همچنین بررسی ارتباط عوامل آب و هوایی با تراکم جمعیت و پراکنش گونه غالب در مزارع گندم استان اصفهان انجام شده است. مجموعا 280 نمونه خاک و ریشه از 140 مزرعه گندم شهرستانها…
Electromagnetic Metamaterial (EMM), which cannot be found in nature and possesses the novel electromagnetic properties of negative refraction, reversals of both Doppler shift and Cherenkov radiation, is a kind of artificial composed material. In order to solve the problem of long delay and high packet loss rate, the p…
It was mentioned in Section 1.1 that all nuclear reactors generate “decay heat” even after “shutdown.” In order to remove this decay heat, the reactors are equipped with safety systems or Emergency Core Cooling Systems (ECCS). Determination of this decay heat as a ratio of the reactor power after shutdown to the initi…
Reactor criticality condition and fuel conversion capability are depending on the fuel arrangement schemes, reactor core geometry and fuel burnup process as well as the effect of different fuel cycle and fuel composition. Criticality condition of reactor core and breeding ratio capability have been investigated in thi…
The porous carbon materials were prepared by the following processes of evaporation induction self-assembly (EISA), thermal polymerization process and calcination step at high temperature with the nano-zinc oxide as a hard template and phenol resin as carbon source. The as-prepared porous carbon materials were charact…
Solid polymer Blend Electrolyte System based on Na-salt has been investigated. In the present work we have incorporated sodium triflate (according to weight percentage) in synthesized PEO/PAM polymer blend system. FTIR, DSC and SEM studies have been carried out to understand polymer blend interactions, crystalline pro…
Safety analysis of 300MWt helium gas cooled long-life fast reactors has been performed.The analysis of unprotected loss of flow(ULOF) and unprotected rod run-out transient overpower (UTOP) are discussed.Some simulations for 300 MWt He gas cooled fast reactors has been performed and the results show that the reactor ca…
Pump-Probe XAFS（X-ray absorption fine structure） using SACLA（XFEL） has been applied to the investigations of the dynamic structure and electronic state change of WO3 photocatalyst in the photoabsorption process. We found that the ultrafast electron transfer followed by the structure changes. We describe our trial to i…
Представлены результаты экспериментальных исследований спектров диффузного отражения в инфракрасном диапазоне от 4000 до 50 cm-1) микропорошков Ni1-xZnxFe2O4-ферритов с различным содержанием Ni и Zn. Установлена зависимость интенсивности ИК-спектров этих ферритов от изменения концентраций катионов Fe2+ и Fe3+ в разных…
This dissertation compiles work on sol-gel syntheses of multiferroic materials and applications thereof. Multiferroics, or materials that simultaneously exhibit multiple order parameters such as ferromagnetism, ferroelectricity, or ferroelasticity, may be fabricated by solution processing techniques. Specifically, the…
The dense and oriented BaTi2O5 (BT2) in a single phase was successfully obtained by an arc melting process on a water-cooled copper plate using BaCO3 and TiO2 as starting materials and B2O3 as an additive. XRD pattern of BT2 showed a preferred orientation of (020). The microstructure of BT2 was examined to show a need…
ZnO seed layers have been deposited on ITO substrates by pulsed laser deposition (PLD) at different substrate temperatures. The crystalline structure, morphology of ZnO nanowires were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). The effects of differen…
Приведены результаты исследований характеристик CuBr-лазера, работающего в режиме сдвоенных импульсов накачки с частотой повторения импульсов генерации 50 Hz. Рассмотрены возможности повышения эффективности лазера за счет выбора оптимальных напряжений диссоциирующего и возбуждающего импульсов и их временной задержки.…
In advanced and conventional reactors natural circulation plays an important role in cooling of core. This dissertation is based on modeling of a test facility using RELAP5/MOD 4.0. Test facility (TF) comprises of heating core, riser, helical coil heat exchanger, and shell and tube heat exchanger and down comer these…
Исследованы структура, морфология поверхности и оптические свойства электроосажденных в импульсном режиме наноструктурированных массивов ZnO, а также осажденных из коллоидных растворов наночастиц Ag и нанокомпозитов ZnO/Ag на их основе. По результатам исследований вольт-амперных и вольт-фарадных характеристик проведен…
This paper analyzed the mechanism of dilatation and high water retention of the independently researched new cementing material. It was proved by the experiment of dilatation and water retention behavior that the maximum water-solid ratio of this new material are 3:1 and the maximum volume dilatation rate of the backf…
Additional file 1: Table S1. EC10 and EC50 values, corresponding 95% Confidence Intervals, Hill slope and R2 of AgNP and AgNO3 concentration-response curves.
細孔径が1–3 nm程度の多孔質ガラス表面にトリチオカルボネート型の連鎖移動剤を導入して，可逆的付加–開裂連鎖移動(RAFT)型ラジカル重合によるgrafting from法でポリ(N-イソプロピルアクリルアミド)(PNIPAM)のグラフトを行った．PNIPAMは水中で32°C付近に下限臨界溶液温度(LCST)を示す．PNIPAMはLCSTより低い温度で水和して広がったコンホメーションになるため，細孔が塞がれる．LCST以上で脱水和してPNIPAM鎖は収縮するため，細孔が開く．したがってLCSTより低温で細孔バルブの閉鎖により，低分子化合物の膜透過は抑制されるが，LCSTより高温で細孔バルブが開くために，低分子化合物は膜を透過する…