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。
Polyhydroxyalkanoates ( PHAs ) can be synthesized from numbers of bacteria and is characterized as biodegradable polymer with similar property to those petrochemical plastics. PHAs contain a variety of polymer properties based on the carbon chain length of the combination of functional groups. It is formed under the s…
The reactions of dichloroethylalane with selected alcohols and phenols afforded a series of six new crystalline aliminum(III) chloride-alkoxides which were structurally characterized by the single crystal X-ray diffraction analysis. The prepared molecules display, depending on the steric properties of employed substit…
usando tecnicas de impedancia, reflexi´ ´on ´optica, XRD, DSC y de microscopia de fuerza porpiezorrespuesta. La dependencia de la capacitancia con la temperatura en ambos materiales muestra un cambio abrupto a la temperaturaque corresponde a la transici´on ferroel ´ectrico-parael ´ectrico y la dependencia tipo Curie-We…
This study is carried out in a semi-integrated firm manufacturing low carbon flat steel. A new annealing furnace was engaged. This furnace performs flat steel annealing process which is one of the manufacturing processes of the firm. Nevertheless, the firm is faced with adhesion problem affecting product quality drama…
通过采用超重力下燃烧合成制备TiC-TiB2细晶陶瓷,研究了陶瓷凝固组织与晶体生长特征,探讨了陶瓷显微组织与断裂行为、增韧机制的关系。XRD、FESEM与EDS分析表明,TiC-TiB2复合陶瓷基体主要由大量细小的TiB2片晶及分布其周围的形状不规则的TiC相构成,TiB2片晶的形成是因其小平面晶体生长特性所致,而不规则TiC的晶体形貌则是因非小平面晶体生长特性及高的生长速率所造成的。陶瓷相对密度、硬度（HV）、弯曲强度及断裂韧度分别为98.6%、21.8GPa、650MPa、12.5MPa·m1/2,并且陶瓷增韧是小尺寸TiB2片晶的裂纹偏转、裂纹桥接、片晶拔出及摩擦互锁原位增韧机制协同作用的结果。
PL(HGSURWRQ±HOHFWURQFRQGXFWLQJSHURYVNLWHZDVV\QWKHVL)HGE\�OLTXLGFLWUDWHPHWKRGDQGWKHFRU� responding membrane was prepared by pressing followed by sintering. The hydrogen permeability of BaCe 0.9 Yb 0.1 O ���/ was studied as a function of temperature and hydrogen partial pressure (PH 2 ) gradi- ent. Using 100% dry hydrog…
X-irradiated cyanoacetylurea CNCH₂CONHCONH₂ and x-irradiated dicyandiaraide NCNC(NH₂)₂ single crystals were studied,by Electron Spin Resonance. Two radical species were formed when cyanoacetylurea, CNCH₂CONHCONH₂, was irradiated with x-rays. One was a π-electron radical, CNCHCONHCONH₂, and the other a σ-electron radic…
The morphological characterization is presented with some physical and chemical results of two Fersialitic soil profiles studied in the former Havana province. In such profiles, it was proved that the vertic properties are shown in horizon B, due to the presence of 5-10 cm prismatic blocks covered with slickensides. T…
The micro structure of CFZ desulfurizer after desulfurization and regeneration in multi-cycle has been characterized by means of transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectrometry (XPS). The variation of the multi-cycle desulfurization and regeneration structure of des…
One of effort, to obtain maximum cocoon production by feeding silkworms with mulberry leaves are sufficiant. Fertilizing by using organic fertilizer was one of effort to improve mulberry productivity. Organic fertilizer used in this research was animal manure, liquid organic fertilizer and compost. Measurement of para…
We are in the process of developing a two-step synthesis of imino stilbenes as potential molecular switches, which are important in biology, electronics and other applications especially at nanoscopic scale. While both imines and stilbenes are well known, we have not uncovered any prior research and documentation on o…
The influence of PANI additions on methanol sensing properties of ZnO thin films at room temperature had been investigated. Commercial polyaniline powder (PANI) was mixed into 3 mL ZnO solution in five different weight percentages namely 1.25, 2.50, 3.75, 5.00 and 6.25% to obtain ZnO/PANI composite solutions. These so…
In this report, the feasibility of new types of novel shape memory hybrids (SMH) and materials were investigated. This is a more extensive research based on the silicone based thermo-responsive shape memory hybrid that was first investigated by Mr. Yap Soon Ann in his URECA project. \nIn this project, new SMH such as…
In this work, we investigate the structural and electronic properties of 1 1, 1 3 and 3 1 GaN/RuN superlattices in Sodium Cloride structure with (001) orientation, using first-principles calculations within Density Functional Theory framework (DFT). We have employed the Full Potential Linearized Augmented Plane Waves…
Samples of AISI 304 stainless steel alloy were treated via nitrogen high temperature plasma immersion ion implantation (PIII) in two different experimental conditions: at 480°C and 650°C. The modified surfaces properties were analyzed by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Atomic Force Micr…
The proliferation in technology has seen engineering applications reaching micro and nano scales. Understanding the boundary conditions describing the fluid flows is highly important since it has been proven that the controversial no-slip condition does not hold at these scales. There are numerous factors identified t…
As técnicas de captura e de armazenamento de carbono são de extrema importância para a redução das emissões desse gás de efeito estufa para a atmosfera. As CCS (Carbon Capture and Storage) utilizam mecanismos físico-químicos para separar esse poluente e outras técnicas de compressão para armazenar geologicamente o dió…
The main aim of this research was to develop a nanorod based biosensor for biomedical applications. In this project I use zinc oxide nanorods as the bio-material for biosensor. I fabricated these nanorods using a solution-based technique. Initially I coated a zinc oxide seed layer as the base. This seed layer was then…
目的:获得快速检测发酵液中10-DAB含量的方法。方法:以产10-DAB内生真菌的发酵液为材料,比较TLC的三种展开系统:丙酮-石油醚、正己烷-氯仿-乙酸乙酯-甲醇-三乙胺和环己烷-乙酸乙酯,及成分的不同比例关系对10-DAB展开效果的影响,再以HPLC进行检测验证。结果:先浓缩发酵液,再以丙酮:石油醚=4:1作为展开剂,乙醇:浓硫酸=9:1为显色剂,最小检测限为0.3μg。结论:该检测方法快速准确,为培育和改良产10-DAB菌种以及发酵生产10-DAB奠定基础。
VII 7.11 Schematic view of azobenzene-containing minority segments of a diblock copolymer with molecules of a molecular glass ...... 7.12 TEM picture of a blend of diblock copolymer 18 and molecular glass 7m ..........