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 long-term results of implant retained restorations with casted and milled frames were compared in clinical and experimental settings. Electrochemical features of milled and casted titanium by contact with titanium implant were assessed. The biocompatibility of milled and casted titanium was studied in mesenchymal…
Diplomski rad pod nazivom "Tehnološka svojstva temeljnih radioničkih premaza" sastoji se od teorijskog i eksperimentalnog dijela. U teorijskom dijelu sažeto su obrađene tehnologije zaštite od korozije čeličnih konstrukcija s posebnim osvrtom na zaštitu od korozije premazima. Prva faza u zaštiti od korozije je nanošenj…
Alternating copolymers, poly[9-(2-octyl-dodecyl)-9H-carbazole-alt-4,7-di-thiophen-2-yl-benzo[1,2,5]thiadiazole] (PCD20TBT) and poly[9,10-bis-(2-octyl-dodecyloxy)-phenanthrene-alt-4,7-di-thiophen-2-yl-benzo[1,2,5]thiadiazole] (PN40TBT), were synthesized by the Suzuki coupling reaction. The copolymers were soluble in co…
In recent years there has been an increasing interest in the automotive industry in applying adhesive bonding in structural components of vehicles. Toughened, high performance adhesives can provide exceptional strength while producing lighter structures and, therefore, improve vehicle safety and efficiency. When adhes…
Central nervous system pathologies are often characterized by the loss of cell populations. A promising therapy now being developed consists in using bioactive materials, associating grafted cells to biopolymers which provide a scaffold for the in vitro building of new tissues, to be implanted in vivo. In the present…
Heart failure accounts for over 5 million cases in the U.S. A major onset of this is myocardial infarction, which causes the myocardium to loose cardiomyocytes and transform into a scar tissue.Given that the adult infarcted cardiac tissue has a limited ability to regenerate, alternative methods to restore the damaged…
Diplomski rad podijeljen je na teoretski i eksperimentalni dio. U teoretskom dijelu opisan je razvoj i značaj nehrđajućih čelika. Na površini nehrđajućih čelika stvara se tanki pasivni film koji ima mogućnost samoobnavljanja ukoliko se čelik nađe u oksidirajućim medijima. Navedeni su najčešći lokalni korozijski oblici…
在Cu-Mn-Ni体系中添加微量元素,制备了合金配置成分为34Cu-16Mn-44Ni-4B-2Si的合金,介绍了制备此钎焊料的设计和制备方法。XRD,DSC分析表明,合金在在550℃左右有一个放热峰,合金粘接强度达到386MPa左右,约为母材强度的60%。
Sweating, which is the excretion of oil on the surface of a solid product containing several kinds of pigments in oil and is also solidified with wax, is a unique phenomenon often observed on the surface of cover make-up or lipstick. The cause of sweating is an imbalanced formula. Many studies have been conducted to d…
Diatomite, a type of biogenic mineral, is sourced from deposition and accumulation of diatom shell. Diatom shells are mainly composed of amorphous hydrated silica, which is categorized as non-crystalline opal-A according to the mineralogical classification. Diatomite has a characteristic macro/mesoporous structure and…
Purpose: The aim of this study was to assess left ventricular function, myocardial oedema, late gadolinium enhancement, papillary muscle involvement and microvascular obstruction in acute and reperfused Non-ST elevated myocardial infarction (NSTEMI) and to investigate changes of cardiac magnetic resonance imaging (CMR…
A series of new branched block copolymers was synthesized and investigated, and their physico� chemical and surface properties were determined. It was shown that all of the prepared block copolymers demonstrate welldefined surface activity dependent on the ratio of hydrophilic and lipophilic fragments of macromolecule…
采用SEM、TEM和化学相分析等手段研究了一种新型Ni-Cr-Mo高强耐蚀合金中碳化物的热稳定性，结果表明：标准热处理态下的新合金由大小不均匀的等轴晶组成，其中的碳化物主要为聚集分布的颗粒状MosC6在600℃时效时，Mo6C相的形态、尺寸和数量均无明显变化，这表明它在该温度下具有较好的热稳定性。但在650℃时效时，随着时效时间的延长，Mo6C相的形态将逐渐由颗粒状向片状转变，当时效时间超过500h后，它将逐渐溶解，与此同时条状的Cr2-C6相将在合金晶界逐渐析出。这表明Mo6C相在该温度下是不稳定的，故新合金的使用温度应低于650℃。
在50L玻璃搅拌反应釜中，以硫酸为催化剂、均三甲苯和中间体的二氯甲烷溶液作为原料，在低温下进行抗氧剂YS-1330的中试试验。抗氧剂YS-1330中试合成体系的搅拌放大试验采用非几何相似放大一整体流速法，并综合考虑分散悬浮性能和能耗的影响，以上反应体系中，最终选择了45。三折叶涡轮，搅拌速率为4～5级。同时，分析了加料方式、反应釜形状对液一液分散性能的影响。并分别进行了1L反应釜40倍、30倍和25．5倍的中试放大试验。试验结果表明，搅拌速率选择4～5级，反应的分离收率都在80％以上，具有较好的重复性。试验中，对反应釜温度进行监控．每隔5min记录一次，发现在整个原料滴加过程中反应在持续放热，在反应开始的15min内放热最为剧烈，…
Electrical discharge plasma created in a multi-channel porous ceramic membrane-supported catalyst was applied to the decomposition of a volatile organic compound (VOC). For the purpose of improving the oxidation capability, the ceramic membrane used as a low-pressure drop catalyst support was loaded with zinc oxide ph…
Both acute and chronic myocardial infraction can lead to necrosis of functional myocardial cells as well as impaired cardiac-pump function. The cardiac patches generated from cardiomyocytes and extracellular matrix scaffold by tissue engineering can be used to repair the impaired function. Cardiac extracellular matrix…
Experimental evidence proves that polymer-stabilized blue phase liquid crystal is not perfectly optically isotropic. The optical rotatory power (ORP) of double twist cylinders causes the polarization axis of the transmitted light to rotate a small angle, and leaks through the crossed polarizers. Rotating the analyzer…
The inhibition effect of propanoyl(1Z)-N-(2-hydoxyphenyl)-2-oxopropane hydrazonoate (PHOH) and Propanoyl(1E)-N-(2-acetylphenyl)-2-oxopropane hydrazonoate (PAOH) on the corrosion of 6061 Al alloy/SiCp composite in 0.5 M hydrochloric acid solution at 30°C has been investigated using potentiostatic polarization technique…
Hydrogen is a green energy carrier. Chemical looping reforming of biomass and its derivatives is a promising way for hydrogen production. However, the removal of carbon dioxide is costly and inefficient with the traditional chemical absorption methods. The objective of this article is to find a new material with low e…
The influence of internal stress and joint strength(shear, tensile) according to the deposition conditions was investigated by the Polyimide substrate and ZnO thin film. Deposition thickness and temperature affect the internal stress and the internal stress was minimum at the 60nm and of the deposition conditions. Ten…