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。
Muralidhar, Abhiram; Tree, Douglas R.; Dorfman, Kevin D.. (2014). Data from: Backfolding of wormlike chains confined in nanochannels. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/171763.
The silicone-epoxy resins which combine the advantages of silicone resins and epoxy resins, are very promising in LED(light-emitting-diodes) package. In this article, the synthesis, curing,performance and development trend of the silicone-epoxy resins for LED package were reviewed.
Based on steel slag as an active admixture for concrete industry,C30 concrete was prepared with waste utilization of steel slag powder and slag powder,which were produced by Yunnan Kunming Steel Industry Development Co.. Mixed concrete and steel slag powder flowability and slump loss of concrete were studied. Slag pow…
Thermoelectric( TE) materials,which are designed to convert waste heat into electric energy,play an important role in reducing our dependence on fossil fuels. TE materials have been applied to biothermal batteries to power heart pacemakers, optoelectronics coupled with solid-state TE cooling,and deep-space exploration…
Ambient self-crosslinking epoxy esters with different degree of esterification were prepared through the partial or whole esterification of epoxy resin with unsaturated fatty acid. The influence of the amount of catalyst and the temperature on the esterification reaction was discussed. The esterification reaction time…
This paper summarizes the theoretical calculation method of equivalent electromagnetic parameters of the composite medium absorbing materials,which contains absorbing agent and adhesive,and evaluates the applicable condition of theoretical calculation method through the discussion of the relationship between composite…
In this paper, discuss boundary value problems coordinate systems like spherical coordinate systems, Cartesian coordinate system, generalization and convension of system, unique coordinate system.Existence and uniqueness of solution, expontial smoothing for models.Periodic boundary problems requires the unit cell to b…
目的：探讨八角中莽草酸对人肝癌细胞HepG-2细胞增殖及其核因子-κB（NF—κB）p65蛋白表达的影响。方法：用不同浓度的莽草酸处理HepG-2细胞，MTT法测定莽草酸对HepG-2细胞的生长抑制率；倒置显微镜下观察莽草酸作用HepG-2细胞后的形态学变化；采用hoechest33342荧光染色观察莽草酸作用于人肝癌HepG-2细胞48h后细胞凋亡形态变化。Westernblot试验观察莽草酸对人肝癌HepG-2细胞NF-κB（p65）蛋白表达的影响。结果：MTT实验结果表明，莽草酸对人肝癌HepG-2细胞的生长抑制作用呈现时间依赖性和剂量依赖性；倒置显微镜下观察细胞形态可以发现，经莽草酸处理48h后的各组细胞中，可观察到随着药…
Flower-like ZnO micro/nanostructures formed by the aggregation of nanorods were synthesized through hydrothermal method at low temperature using Zn(Ac) 2 and NaOH as starting materials.Products were characterized and analyzed by X-ray diffraction(XRD),scanning electron microscopy(SEM)and photoluminescence spectroscopy…
为解决增透膜在太阳能工业应用中易开裂、透过率低、提拉速度低的缺点，该文以正硅酸乙酯（TEOS）、甲基三甲氧基硅烷（MTMS）和N，N-二甲基甲酰胺（DMF）为前驱体，在酸催化体系中通过选择合适的原料配比以及对体系溶胶-凝胶过程的控制，使TEOS、MTMS、DMF的水解产物发生共缩聚反应，进而制备出改性的SiO2溶胶，并采用提拉镀膜法直接获得了同时具有良好透过率和高速提拉下不易开裂的SiO2光学膜，克服了增透膜提拉速度低的缺点，并采用老化实验等手段研究了增透膜的抗老化性。结果表明，DMF的引入不仅可提高提拉速度，还可有效增加膜层的增透性能和抗老化性能。
W-Mo-Cr-Al2O3 composties were prepared using sub-micron W, Mo, Al2O3 and micron Cr powders by hot-pressing at 1 600 ℃. The microstructure of the composites were investigated by X-ray diffraction(XRD), scanning electron microscopy(SEM) and energy dispersive spectrometer(EDS), besides, the mechnical properties and fract…
Using silk fibroin as raw material and 1,1,1,3,3,3-hexafluoro-2-propanol as solvent,the solution-enhanced dispersion by supercritical fluid(SEDS) process was used to prepare silk fibroin nanoparticles. The influences of pressure,solution concentration,solution velocity and CO2 velocity on particle size and particle si…
Firstly, this paper introduces the characteristics of the outer decoration curtain wall project and the key points of closing audit, then analyzes the common problems of closing audit of the curtain wall decoration project and an instance, and finally puts forward the announcements.
一直致力为不同应用行业提供橡塑科技解决方案的「CHINAPLAS国际橡塑展」主办单位雅式展览服务有限公司与上海塑料行业协会于11月17日在上海举行「CHINAPLAS 2015国际橡塑展-新技术交流会」。交流会为100多位来自当地的包装及汽车企业代表预告明年「CHINAPLAS 2015国际橡塑展」展出的最新科研技术,活动邀请了展商阿博格机械（上海）有限公司、威猛巴顿菲尔机械设备（上海）有限公司、三菱化学（中国）商贸有限公司应邀作为发言嘉宾。
A high energy density asymmetric supercapacitor (Vanadium dioxide/ graphen/Nickle (VGN)// Carbon nanotube) was fabricated in this research.Graphene and vanadium dioxide (VO 2 ) were used as the supporting and active materials, respectively, to build the positive electrode of the asymmetric capacitor.Graphene was grown…
Abstract. This work, carried out at the DICI of Pisa University, in collaboration with ENEA Brasimone R.C., deals with the analysis and a preliminary discussion of the experimental tests performed in the Integral Circulation Experiment (ICE) configuration of the Circulation Eutectic (CIRCE) facility aiming to investig…
An accident that the shaft in high pressure was broken was occurred. Examination and analysis of chemical composition, fracture micro morphology, microstructure and fracture corrosion energy spectrum were carried out for this broken shaft. It was shown that the main cause of the rupture is that there is sulfur and chl…
柠檬酸三丁酯（TBC）是绿色环保无毒的增塑剂,其传统合成工艺采用浓硫酸作催化剂,设备腐蚀、三废问题严重,开发高效、绿色的替代催化剂是当前研究的重点。本文采用共沉淀-浸渍法向S2O8^2-/ZrO2-Al2O3催化剂中引入适量的La元素,制备出具有较高催化活性和稳定性的固体超强酸催化剂;以柠檬酸三丁酯的合成为探针反应评价催化剂的活性,并通过红外光谱、X射线衍射、NH3程序升温脱附,吡啶红外光谱等表征方法考察了La的添加对催化剂结构和性能的影响,结果表明：La的加入能够阻止催化剂中过硫酸根的分解,增强S和O之间的相互作用;少量的La不仅能增加催化剂的比表面积、酸强度和酸量,且能提高催化剂的活性和稳定性,当La的加载量为1%时,制得的催…
The effects of dosage of attapulgite on mooney viscosity,curing behavior and physical mechanical properties of ethylene propylene diene terpolymer were studied. Results showed that in the experimental range,with the increasing of attapulgite dosage,the mooney viscosity increased gradually,scorch time shortened,and cur…
Boron, B, has many interesting electronic and structural properties, which makes it an ideal material for technical and industrial needs. The different binary materials that have been in focus in the present thesis, do all include B; metal diborides (MB2), cubic boron nitride (c-BN) forming an interface with diamond,…