Materials Literature
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合成了一个新的镉配合物[CdCl2（C3H4N2）]n（C3H4N2=吡唑）,并对其进行了元素分析、IR、TG、PL和单晶X射线的结构表征。配合物晶体属单斜晶系,空间群为C 2/c,晶胞参数为a=1.832 3（4）nm,b=0.386 54（8）nm,c=1.396 4（3）nm,β=95.60（3）°。V=0.984 3（3）nm3,Z=4,Mr=319.46,Dc=2.156 g.cm-3,μ=2.718 mm-1,F（000）=616,最终R=0.021 7,wR=0.050 6。镉（II）原子分别与两个不同吡唑分子中的氮原子和四个氯原子配位,且形成了六配位的八面体配位构型。该配合物晶体在分子间氢键的作用下,在bc平面建构…
Ten substituted dispiro-1,2,4-trioxolane derivatives were synthesised and screened for antifungal activity in vitro against Rhizoctonia bataticola (Taub) Butler and Sclerotium rolfsii (Sacc.). Dispiro[cyclohexane-1,3’[1,2,4]trioxolane-5’,2-tricyclo [3.3.1.13,7] decan]-4-yl)-N-(3-fluorobenzyl) acetamide (9b) showed max…
We investigate the effects of the hydrogen dilution in the hydrogenated amorphous silicon (a-Si:H) film deposition process with SiH4 on the properties of the a-Si:H films. Crystallization of the a-Si:H to several tens nanometer-sized crystal state is observed by increase of hydrogen dilution ratio(R=[H2]/[SiH4]) using…
The analysis of the current state of the pyrolysis of organic substances. A description of the developed plants for the production of charcoal, which has several technological areas that provide a high quality charcoal, to provide technology security and to achieve maximum efficiency.
用溶胶凝胶法制备了Ca0.075Sr0.925Bi4Ti4O15(简称CSBTi)铁电陶瓷样品,研究了烧结温度对CSBTi铁电陶瓷性能的影响。结果表明:1180℃温度下烧结的CSBTi铁电陶瓷样品的铁电性能得到明显改善,剩余极化强度2Pr为19.4μC/cm2,矫顽场强度Ec为72.5kV/cm;压电常数为d33=9.8pC/N;居里温度TC=543℃,随着测试频率的增加,室温下相对介电常数er的峰值逐渐下降,而对应的居里温度TC则随之上升,表现出弛豫铁电体的特征。
In this work, polymerization of polycaprolactone with dibutyltin dilaurate catalyst is studied. Dibutyltin dilaurate is proposed as a suitable catalyst for polymerization of polycaprolactone. Then, the efficiencies of tin(II)2-ethyl hexanoate and dibutyltin dilaurate catalysts are compared. Moreover, The effects of va…
Colloque avec actes et comité de lecture. Internationale.
ABSTRACT ：The various types of PBA/PMMA composite latexes were prepared by 2.1 ㎛ PBA seeded batch and seeded semi-continuous dispersion polymerization. The morphology of the PBA/PMMA composite latexes by seeded batch processwas found to be closely dependant on the weight ratios of methanol/water in polymerization medi…
Heavy metal pollution in aqueous medium is a problem of global concern. The discharge of industrial effluents with low concentration of metals, yet promising technology should be emphasized in the problem. Consequently, a new chelating ligands containing hydroxamic acid and amidoxime functional groups was synthesized…
In this paper, the variation of the optical band gap of ZnO films in different oxygen ambient has been investigated by dint of photoluminescence (PL) emission mode. The pure ZnO films were grown on the polished silicon (100) wafers and quartz glass by using an R.F magnetron sputtering system in a series of O2/Ar ratio…
利用极化曲线和失重法, 研究了H2S、Cl-、温度等因素对Cr13钢在饱和CO2介质中腐蚀行为的影响。试验表明, 在50 ℃、Cl-浓度为50 g/L时, 随溶液中H2S含量增加, Cr13钢自腐蚀电流密度增大, 钢的腐蚀速率上升, 腐蚀受阴极浓差极化控制。50 ℃, H2S浓度为0.06 mol/L时, 当Cl-浓度低于50 g/L时, 随着Cl-浓度增加, Cr13钢腐蚀速率上升;当Cl-浓度高于50 g/L时, 随Cl-浓度增加, Cr13钢的腐蚀速率下降。在H2S浓度为0.06 mol/L, Cl-浓度为50 g/L时, 随温度升高, Cr13钢腐蚀速率增加。
The electron-vibrational model for the organic dimer proposed in this paper allows to take into account not only the electron correlation (the organic charge transfer complexes are strongly correlated systems) through the dimerized Hubbard model, but also the internal structure of the dimer and each of its monomers by…
Описаны завершенные работы по внедрению на РУП «МТЗ» технологии химико-термической обработки деталей в вакууме с закалкой в среде инертного газа на установке «ModulTherm 7/1» фирмы «ALD Vacuum Technologies GmbH» (Германия).
Schottky diodes usually exhibit non-ideal characteristics. The departure from an ideal junction may result from a thick interfacial layer between the semiconductor and metal, or the presence of series resistance from the bulk semiconductor below the depletion region and back side Ohmic contact resistance. In the prese…
The uptake and biological impact of serum-treated titanium dioxide (TiO2) nanoparticles towards A549 and H1299 human lung cells lines are investigated herein. TiO2 nanoparticles were incubated with 100% fetal bovine serum (FBS) for a 24 h period. Following the serum treatment, TiO2 aggregate stability was improved in…
This article is considered with the question of alternative forms of the maximum reduced stress plasticity condition. For the considered plasticity condition the analog of Levi's equation was deduced
This article presents substantiation of the choice of wheelset traction drive for railway traction rolling stock. Based on the analysis of design features of individual and common wheelset traction drive the analysis of research works and comparison of their technical and economic efficiency is done. Application domai…
Relatório de projecto no âmbito de Bolsa Universidade de Lisboa/Fundação Amadeu Dias (2010/2011). Universidade de Lisboa. Faculdade de Farmácia
Due to its potential for high efficiency PV cells CIGS technology is becoming increasingly important. We report about the development of special, fine grain rotatable target materials for this application and will show data for In, CuGa, and CuInGa tubes on sputtering rates and possible power density obtained in our i…
ПЕРСПЕКТИВЫ НАНОСТРУКТУРИРОВАННЫХ МАТЕРИАЛОВ И МЕТОД СОЗДАНИЯ НАНОКЛАСТЕРНОГО КОМПОЗИТАДокт. техн.