Materials Literature
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Flexible personal armour systems are used everyday by police forces, military personnel, paramedics, and others in their line of duty. The introduction of high-performance polymer-based fibres and yarns has paved the way for the design of lightweight, yet strong body armours that can defeat a wide range of threats. Ho…
Conjugated block copolymers have been used to disperse and functionalize pristine carbon nanotubes (CNTs). Upon a simple sonication, the conjugated polymer block such as polythiophenes can form strong π-π interactions with CNT walls, while the non-conjugated polymer block provides the de-bundled CNTs with a good solub…
Four cardenolides were obtained from the latex of Antiaris toxicaria(Pers.) Lesch.On the basis of spectral data,they were identified as strophanthojavoside(1),convallatoxin(2),strophalloside(3),and glucostrophanthidin(4).Compound 4 was isolated from Antiaris toxicaria for the first time.Compounds 1~4 showed significan…
Actuators based on shape memory alloys are today developed to be used only in special applications. Therefore solutions cannot be transferred to other tasks. The focussing has important disadvantages. Firstly the effort and costs reach a high level and secondly the development of complex SMA-actuators turns out to be…
In general, textiles are perceived as soft materials and structures and textile fibres can be organised into fabrics of different complexities to form new materials and structures. Textiles are widely used in many applications, ranging from clothing to advanced technical applications such as textile composites for the…
The serine hydrolase superfamily is one of the largest known enzyme families comprising approximately 1% of the predicted protein product in human genome. This family of enzymes contains a catalytic triad that is mainly consists of serine, aspartic acid/glutamic acid and histidine residues in their active sites. It ha…
The feasibility of using of wood and old corrugated container (OCC) fibers on the surface layers of particleboards was investigated. The kind of applied furnish at surface layers, the moisture and adhesive content were considered as variables and their effects on hardness and roughness of manufactured particleboards w…
The environmental impact of flooring materials is the aggregate of impacts of raw material properties and composition across all stages of the product life cycle including extraction, manufacturing, packaging and transportation, use and disposal. In this analysis, linoleum, vinyl composition tile (VCT), nylon carpet t…
The aim of this paper is to compare the experimental performances of a new hybrid flux switching synchronous machine built with two types of lamination materials (3% silicon iron steel M330-50 and NO-20). This machine uses the flux switching principle where all the active parts are located on the stator (armature wind…
rosslinked poly(acrylic acid)s were prepared using two types of crosslinker by precipitation polymerization method in a binary organic solvent. N,N’-methylenebisacrylamide (MBA) and polyethylene glycol dimethacrylate (PEGDMA-330) were used as low-molecular weight and long-chain crosslinkers, respectively. The effect o…
China Advanced Research Reactor (CARR), which will be critical in China Institute of Atomic Energy (CIAE) in 2010, is a multipurpose, high neutron flux and tank-type (inverse neutron trap) reactor with compact core. Its nominal reactor power is 60MW and the maximum thermal neutron flux is about 8.0×1014n/cm2·s in heav…
Carbon substrates have a wide variety of applications, many of which are enabled by appropriate surface modifications. In particular, the use of carbon-based substrates for biological devices can be quite advantageous due to their relative inertness and biocompatibility. Moreover, graphitic carbon can take many forms…
Flashover of power transmission lines due to polluted insulators is a major problem in coastal and industrial areas. This paper deals with the analysis of leakage current characteristics of power transmission line insulator in order to develop a better diagnostic tool to identify the surface condition of insulators. I…
This paper discusses thin film technology based on barium titanate (BaTiO3)-epoxy polymer nanocomposites. In particular, we highlight recent developments on high capacitance, large area, thin film passives and their integration in System in a Package (SiP). A variety of nanocomposite thin films ranging from 2 microns…
The estimation of forging die wear and cost are both important issues.Die wear accounts for a large portion (almost 70%) of die failures.This leads to increased costs to replace the die, through downtime and the cost of the die itself.Through finite element method (FEM), forging processes can be simulated and the die…
Ternary Sn-3.5Ag-xFe solders with varying amount of Fe; 0.1, 0.5, 1.0, and 2.0 wt. % were reacted with Cu UBM which was electroplated using SPS additive and characteristics of Kirkendall void formation at the solder joints were investigated. Results indicate that the propensity to form Kirkendall voids at the solder j…
This paper presents a physically-based, control-oriented Diesel particulate filter (DPF) model for the purposes of NO and NO2 concentration estimations in Diesel engine aftertreatment systems. The presence of NO2 in exhaust gas plays an important role in selective catalytic reduction (SCR) NOx reduction efficiency. Ho…
Economical manufacturing of electroplated copper pillars requires maximizing the deposition rate while achieving the coplanarity, flatness, and morphology required by the overall packaging process. Various aspects of the deposition are influenced by the resist pattern and the deposition rate. Experimental comparison o…
有碳的不同层次的试验性的镍底单身者水晶 superalloys 的微观结构是 studied.The 结果与增加碳增加显示了那， liquidus 温度显然减少了，当演员组微观结构在在在这些合金形成的 carbides.The 碳化物的卷部分的最容易溶解的结构和增加是的/'的数量展出了减少最显得连续的手迹类型 MC 碳化物在 interdendritic regi 的树枝状的网络
An experimental study on the bevelling of quartz crystal blanks is presented in this paper. Based on the analysis of bevelling mechanism, the concept of critical gap height is introduced for evaluating the material removal in bevelling. The influences of seven process factors: blank quantity, powder/blank ratio, powde…