نتایج جستجو برای: آلکیل تریمتوکسیاکتادسیلسیلان tmos

تعداد نتایج: 912  

2016
Li Xu Caixia Ke Ying Huang Yunjun Yan David D. Boehr

Lipase from Aspergillus niger was “doubly immobilized” with SiO2 nanoparticles in sol-gel powders prepared via the base-catalyzed polymerization of tetramethoxysilane (TMOS) and methyltreimethoxysilane (MTMS). The hydrolytic activity of the immobilized lipase was measured using the p-nitrophenyl palmitate hydrolysis method. The results showed that the optimum preparation conditions for the gels...

2014
Jian-Xin Zhu Xiao-Dong Wen J. T. Haraldsen Mi He C. Panagopoulos Elbert E. M. Chia

Transition metal oxides (TMOs) exhibit many emergent phenomena ranging from high-temperature superconductivity and giant magnetoresistance to magnetism and ferroelectricity. In addition, when TMOs are interfaced with each other, new functionalities can arise, which are absent in individual components. Here, we report results from first-principles calculations on the magnetism at the BiFeO3/YBa2...

پی­پیرازین های نامتقارن به­ طور گسترده در ساختار داروهای آنتی سایکوتیک یافت می­ شوند. ازآن­جا که آلکیل یا آریل دار کردن گزینشی پی­پیرازین­ ها به ­آسانی انجام نمی­ شود، استفاده از واکنش آریل ­دار کردن 1,4-diaza-icyclo[2.2.2]octan با استفاده از واکنش جفت شدن متقاطع کربن ـ نیتروژن، مسیر مناسبی برای تهیه این ترکیب ­های هدف به­ شمار می ­آید. در این پژوهش، مسیر تازه ­ای برای تهیه مشتق­ های پی­پیر...

Journal: :Nature Communications 2021

Abstract Transition metal oxides (TMOs) are promising electrochromic (EC) materials for applications such as smart windows and displays, yet the challenge still exists to achieve good flexibility, high coloration efficiency fast response simultaneously. MXenes (e.g. Ti 3 C 2 T x ) their derived TMOs 2D TiO candidates high-performance flexible EC devices because of nature possibility assembling ...

Journal: :Comput. Graph. Forum 2017
Gabriel Eilertsen Rafal Mantiuk Jonas Unger

Tone-mapping constitutes a key component within the field of high dynamic range (HDR) imaging. Its importance is manifested in the vast amount of tone-mapping methods that can be found in the literature, which are the result of an active development in the area for more than two decades. Although these can accommodate most requirements for display of HDR images, new challenges arose with the ad...

Journal: :Applied and environmental microbiology 2008
Roi Feingersch Janna Shainsky Thomas K Wood Ayelet Fishman

Enantiopure sulfoxides are valuable asymmetric starting materials and are important chiral auxiliaries in organic synthesis. Toluene monooxygenases (TMOs) have been shown previously to catalyze regioselective hydroxylation of substituted benzenes and phenols. Here we show that TMOs are also capable of performing enantioselective oxidation reactions of aromatic sulfides. Mutagenesis of position ...

2003
Chang-Sun Shin Su-Chong Joo Young-Sik Jeong

We designed the TMO-based Object Group(TMOOG) model with various services for supporting distributed real-time applications, and analyzed whether these given service strategies can be adopted and worked to this model well. In this paper, we are interested in the object group model that can be defined as a single logical view system for providing replication transparency and supporting real-time...

Journal: :Frontiers in Energy Research 2023

The energy storage mechanism and manufacturing equipment of sodium-ion batteries (SIBs) lithium-ion (LIBs) are similar. However, SIBs offer several advantages, such as low cost, abundant resources, environmental friendliness, high safety. Consequently, they have garnered significant attention. poised to be potential replacements for LIBs represent ideal candidates in the field large-scale stora...

ژورنال: :شیمی و مهندسی شیمی ایران 0
عظیم ضیایی حلیمه جانی تهران، دانشگاه خوارزمی، دانشکده شیمی پریچهر آقابزرگ نانوا تهران، دانشگاه خوارزمی، دانشکده شیمی یزدانبخش لطفی نوسود تهران، دانشگاه خوارزمی، دانشکده شیمی بهزاد خلیلی رشت، دانشگاه گیلان، بخش شیمی

در این پژوهش روشی آسان و کارآمد برای تهیه 4-آریلیدین-2-آلکیل تیو-h4-تیازول-5-اون ها، همانند گوگرددار آزلاکتون ها، با واکنش تراکمی یک آلدهید با یک آمینواسید بر پایه دی تیوکاربامات، معرفی شده است. همچنین بیس ]2-(آلکیل تیو)-تیوآزلاکتون[ با استفاده از ترفتالدهید تهیه شده است. بازده های خوب تا عالی برای فراورده ها، روش کار آسان و تهیه مولکول های پیچیده با استفاده از مواد اولیه ساده مهم ترین برتر ی ه...

Journal: :ACS applied electronic materials 2021

Among many transition-metal oxides (TMOs), strontium cobalt oxide (SrCoOx) is a promising active material for advanced memory devices due to the versatile valence state of ions. Several SrCoOx-based electrochemical have been proposed, but solid-state protonation from SrCoO2.5 HxSrCoO2.5 (x = 1, 1.5, and 2) at room temperature has not demonstrated thus far absence an appropriate solid electrolyt...

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