Solid3000在机械制图中的运用浅见

针对现阶段职业院校的生源质量比较低,为了达到办学目标,在教学方法和教学手段上突破传统的限制,利用计算机软件进行辅助教学。     

Solid Edge变量表在零件系列设计中的应用

文章分析了SolidEdge的变量表技术在甩油环系列设计中应用,并给出了详实图例。     

以MCP为基底的CSI光电阴极的研究

紫外辐射一般较弱,在大气中传输衰减较厉害,提高光电阴极量子效率是紫外探测技术的关键。通过对不同基底上光电阴极的分析和实验,得出以MCP为基底的光电阴极在发射模式为反射式时,量子效率高﹑制作工艺简单。并确定了CsI光电阴极厚度与MCP的规格参数的关系。     

Review: Perspectives on the metallic interconnects for solid oxide fuel cells

The various stages and progress in the development of interconnect materials for solid oxide fuel cells (SOFCs) over the last two decades are reviewed. The criteria for the application of materials as interconnects are highlighted. Interconnects based on lanthanum chromite ceramics demonstrate many inherent drawbacks and therefore are only useful for SOFCs operating around 1000℃. The advance in the research of anode-supported flat SOFCs facilitates the replacement of ceramic interconnects with metallic ones due to their significantly lowered working temperature. Besides, interconnects made of metals or alloys offer many advantages as compared to their ceramic counterpart. The oxidation response and thermal expansion behaviors of various prospective metallic interconnects are examined and evaluated. The minimization of contact resistance to achieve desired and reliable stack performance during their projected lifetime still remains a highly challenging issue with metallic interconnects. Inexpensive coati     

Science Letters:Effects of polyurethane matrices on fungal tannase and gallic acid production under solid state culture

The influence of the physical structure of polyurethane matrix as a support in a solid state culture in tannase production and gallic acid accumulation by Aspergillus niger Aa-20 was evaluated. Three different polyurethane matrices were used as the support: continuous, semi-discontinuous and discontinuous. The highest tannase production at 2479.59 U/L during the first 12 h of culture was obtained using the discontinuous matrix. The gallic acid was accumulated at 7.64 g/L at the discontinuous matrix. The results show that the discontinuous matrix of polyurethane is better for tannase production and gallic acid accumulation in a solid state culture bioprocess than the continuous and semi-discontinuous matrices.     

Iterative learning control of SOFC based on ARX identification model

This paper presents an application of iterative learning control (ILC) technique to the voltage control of solid oxide fuel cell (SOFC) stack. To meet the demands of the control system design, an autoregressive model with exogenous input (ARX) is established. Firstly, by regulating the variation of the hydrogen flow rate proportional to that of the current, the fuel utilization of the SOFC is kept within its admissible range. Then, based on the ARX model, three kinds of ILC controllers, i.e. P-, PI- and PD-type are designed to keep the voltage at a desired level. Simulation results demonstrate the potential of the ARX model applied to the control of the SOFC, and prove the excellence of the ILC controllers for the voltage control of the SOFC.     

蛋白质、酶在室温离子液体中的电化学研究

叙述了蛋白质、酶等生物大分子在室温离子液体中的基本性质，重点介绍了它们在室温离子液体中的电化学研究进展。     

全固态电视发射机的电磁兼容改进设计

电磁兼容技术主要研究的是如何使在同一电磁环境下工作的各种电气电子系统、分系统、设备和元器件都能正常工作，互不干扰，达到兼容状态。章就全固态电视发射机系统设计中可以采取的干扰抑制技术，重点探讨了系统的电磁兼容性。     

固相间接血吸附试验检测结核抗体的应用研究

用固相间接血吸附试验(SPIHA)检测结核抗体,经7组不同标本测定结果显示特异性高,而且比酶联免疫吸附试验(ELISA)敏感、简便、经济。IgM特异性抗体检测对结脑有较大诊断价值。     

两种光色性化合物的固相合成

通过室温固相反应制备了双硫腙金属配合物(锌、汞)。介绍了合成和光色性的教室演示方法;讨论了该类化合物的光色性机理。