采用无偏振片反射式LCD及超低功耗驱动技术制造移动显示器件

我们通过对材料和制备条件的精细化处理,生产出一种在低刷新频率下无闪烁和图像迟滞现象的反射式显示器。该显示器的功耗非常低,且可在宽温度范围内工作,是未来移动显示器件的潜力平台。     

A life-cycle analysis on thin-film CdS/CdTe PV modules

Authors have evaluated the life cycle of a thin-film CdS/CdTe PV module to estimate the energy payback time (EPT) and the life-cycle CO₂ emissions of a residential rooftop PV system using the CdS/CdTe PV modules. The primary energy requirement for producing 1 m² of the CdS/CdTe PV module was similar to a-Si PV module at annual production scale of 100 MW. EPT was calculated at 1.7–1.1 yr, which was much shorter than the lifetime of the PV system and similar to that of a-Si PV modules. The life-cycle CO₂ emissions were also estimated at 14–9 g-C/kWh, which was less than that of electricity generated by utility companies.     

由天然水制备饮用水的设备

该设备包括膜分离装置，其设计安装至水源底部，空气吹风机、泵和槽。该设备最好安装太阳能电池，用于泵和吹风机的运转。在原水供给膜分离设备时无需电力供应。     

Cationic starch derivatives as dynamic coating additives for analysis of amino acids and peptides using poly(methyl methacrylate) microfluidic devices

Plastic microchips are very promising analytical devices because they are less fragile and are suitable for mass production. However, due to their hydrophobicity, the surface strongly interacts with nonpolar analytes or species containing hydrophobic domains, resulting in significant uncontrolled adsorption on channel walls. This paper describes the poly(methyl methacrylate) surface treatment by dynamic coating additives that considerably decreases adsorption of analytes to channel walls. Among the additives studied, quaternary ammonium starch derivatives suppressed the adsorption of fluorescently labeled amino acids and peptides most effectively. The effect was valid over the wide pH range from 2.5 to 8.0. Using a 10 mM phosphate buffer (pH 7.0) with 3% (w/v) quaternary ammonium starch as the running buffer, Asp and Glu, respectively, migrated at 54.6 and 57.6 s with efficiencies of 380 000 and 370 000 plates/m. In addition, this cationic starch derivative was found to possess good solubility and low viscosity.     

Diffusion coefficient of the protein in various crystallization solutions: The key to growing high-quality crystals in space

The diffusion coefficients of lysozyme and alpha-amylase were measured in the various polyethylene glycol (PEG) solutions. Obtained diffusion coefficients were studied with the viscosity coefficient of the solution. It was found that the diffusion process of the protein was suppressed with a factor of v^γ, where ν is a relative viscosity coefficient of the PEG solution. The value of γ is ?0.64 at PEG1500 for both proteins. The value increased to ?0.48 at PEG8000 for lysozyme, while decreased to ?0.72 for alpha-amylase. The equation of an approximate diffusion coefficient at certain PEG molecular weight and concentration was roughly obtained.     

AB5-type Hydrogen Storage Alloy Modified with Ti/Zr Used as Anodic Materials in Borohydride Fuel Cell

1. IntroductionFuel cells are attractive alternative energy conversiondevices due to their higher efficiency and low pollution.Some fuel cells such as the proton exchange membranefuel cell (PEMFC), the alkaline fuel cell (AFC), and thephosphoric acid fuel cell (PAFC) require gaseous hydro-gen as the fuel. Establishing an available hydrogen stor-age system for these fuel cells is a key to satisfy the re-quirement of practical application. Though researchersin the world developed all kinds …     

Back-scattering study of heavy-ion distribution in semiconductors

The three-dimensional distribution of ⁸⁴Kr ions implanted into a Si substrate with 180 keV energy to a dose of 2 × 10¹⁶ ions/cm² has been measured by a back-scattering technique with 1.5 MeV ⁴He⁺. The distribution was observed as a distorted curve due to the influence of the ⁸⁴Kr ions on the specific energy loss of the ⁴He⁺. By considering the correction of the distortion, it is shown that the experimental results are in good agreement with theoretical predictions, and it is concluded that in quantitative discussions on the profile of impurity atoms in heavily doped material the influence of the impurity atoms on the specific energy loss cannot be neglected.