Electrophoretic Display of surface modified TiO<Subscript>2</Subscript> driven by Poly (3,4-ethylenedioxythiophene) Electrode

Summary Electrophoretic display system was fabricated to investigate the effectiveness of transparent polymer electrode using Poly (3,4-ethylenedioxythiophene) (PEDOT). The electrophoretic TiO₂ nanoparticles were coated to modify the surface. As a transparent polymer electrode, 3,4-ethylenedioxythiophene (EDOT) was in-situ polymerized into PEDOT. When the reducing agent (N-dimethylacetamide, DMAc) was added, surface resistivity of PEDOT was dominantly reduced. With the DMAc addition of 40 wt % to the monomer content, surface resistivity was as low as 100 Ω/□, and transmittance was almost 80% in visible ray region.     

Tensile properties,morphology, and biodegradability of blends of starch with various thermoplastics

In the present study, blends of starch with different thermoplastics were prepared by a melt blending technique. The tensile properties and morphology of the blends were measured. It was found that with increasing starch content in starch/ionomer blends, the tensile strength and modulus increase. But for starch/low‐density polyethylene (LDPE) and starch/aliphatic polyester (APES) blends, tensile strength and modulus decrease with increasing the starch loading. Elongation at break values of all the blend systems decrease with increasing starch loading. The scanning electron micrographs (SEM) support the findings of tensile properties. Better homogeneity is observed in starch/ionomer systems compared with that in starch/APES and starch/LDPE systems. Up to 50% starch content, the starch/ionomer blends appear as a single phase. The extent of phase interactions of starch/APES system lies in between the starch/LDPE and starch/ionomer systems. From the biodegradability studies of the blends it was found that, although the pure LDPE and ionomer are not biodegradable, the starch/LDPE and starch/ionomer blends are biodegradable with an appreciable rate. The rate of biodegradation of the starch/APES is very high as both the components are biodegradable. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2907–2915, 2002     

酒店热水与空调系统联合供应解决方案探讨

本文介绍酒店热水与空调系统联合供应的几个优化方案,涉及到太阳能和热泵技术的应用原理与系统,应用中充分考虑两者的结合,选择最优的方案,做到最大限度地节能。     

分户热计量采暖系统的特性

本文根据分户热计量采暖系统中散热器的热工特性,定性分析热水流量等参数对散热器散热量可调性的影响,推荐适合于分户热计量系统的采暖系统形式和热水流量等参数,同时提出了消除采暖系统水力失调的重要性,供设计人员参考。     

HIPS/EVOH高阻隔复合材料的加工工艺

本文介绍了高阻隔EVOH树脂的性能特点和应用情况。探讨了开发硬包装用EVOH复合材料的必要性。结合实际开发经验,介绍了HIPS/EVOH复合材料的成型设备和加工工艺,分析了影响复合材料性能的关键问题和解决方案。     

食品安全的现状分析

通过近几年对市场随机抽查的结果汇总分析,分析目前的食品安全状况、产生问题的主要原因和特点。提出尽快完善统一全面的食品安全标准、在食品生产企业中进一步推广建立食品安全管理体系、运用风险性分析框架管理食品安全,建立和完善的食品安全风险评估评价体系和建立食品安全信息监测、通报和发布的网络体系的建议。     

全彩LED显示屏用非对称节能型LAMP器件的设计

全彩LED显示屏通常是仰视的应用环境,上视角范围内的亮度没有被有效利用。本论文提出了一种将LAMP器件上视角范围内的亮度,向下视角范围转移的设计方法。通过设计得到透镜型面数据,制作透镜模具,封装成成品灯珠并进行测试,非对称LAMP器件上视角20°,下视角40°。下视角增大后,在同等条件下,非对称器件与常规器件相比,下视角可视范围内亮度提升了30%。同时,配光的一致性也获得了明显提升,降低了色偏差。由于上视角减小,也减少了上视角范围内的亮度造成的光污染。     

加强人工成本管理、提升企业管理能力

燃气销售企业是劳动密集型的企业,近年来随着员工收入的增加和福利水平的提高,人工成本也逐渐成为企业的第一大成本。本文结合燃气销售企业人工成本管理的现状及分析,从人工成本管理的基本要求、加强人力资源管理、完善员工收入分配和用工总量控制等方面提出了一些应对措施,以便企业更好地加强人工成本管理,提升企业的管理能力。     

Inducing malolactic fermentation in Chardonnay musts and wines using different strains of Oenococcus oeni

Malolactic fermentations (MLF) were induced in a commercially prepared Washington State Chardonnay must to evaluate the influence of timing of inoculation and pre-culture conditions of Oenococcus oeni strains MCW, EQ-54, and WS-8. The must (pH 3.62, 21.5°Brix) was divided into lots and inoculated with Saccharomyces cerevisiae strain CY3079. Strains of O. oeni were pre-cultured by growing in diluted juice or by re-hydration of freeze-dried strains. Bacteria were inoculated into the musts before (Day 0) or after completion of the alcoholic fermentation (Day 22). Yeast populations exceeded 10⁷cfu/mL in all fermentations that proceeded to dryness. However, the viability of most strains of O. oeni quickly declined after inoculation regardless of the timing of inoculation or the strain used. MLF was induced in the wines inoculated with strains EQ-54 and WS-8 but not with MCW, and the rate depended on the time of inoculation. The method used to prepare bacterial starter cultures had no apparent influence on the completion of MLF. Values for volatile acidity were slightly higher (P< 0.05) in wines inoculated with O. oeni before alcoholic fermentation compared with those inoculated after alcoholic fermentation.