磁性氧化铁牺牲阳极FC的研制

论述了磁性氧化铁牺牲阳极生产的必要性、工艺技术条件 (压块压力、烧结温度、烧结时间 )及产品性能等。该阳极的化学成分为 90 %mol (以Fe2 O3 表示 )的Fe3 O4和 10 %molMe1O混合物 ,粒度 <16 μm。研制出的磁性氧化铁牺牲阳极样品结构致密 ,电阻率小 (0 .0 0 7Ω·cm) ,在 2 0 %HCl溶液中腐蚀失重率为 0 .72 % h。结果表明 :采用粉末冶金法生产此种磁性氧化铁牺牲阳极可以做到工艺顺利、牺牲阳极的结构致密、电阻率小、抗腐蚀性能良好。其中以 11# 牺牲阳极的性能为最好。其工艺条件为成型压力 1 2t cm2 ,烧结温度 110 0℃ ,烧结时间 5h。     

二级厌氧—SBR工艺处理酱油生产废水

酱油工业废水组分复杂，常含有多种有机物质，色度深，难于降解，且水质水量波动较大。文章介绍了采用二级套氧－SBR工艺，先在厌氧反应池内加入弹性立体填料，后接SBR反映器处理酱油生产废水，以及废水处理的设计特点、工程特点和处理效果。运行结果表明，吨水投资费用为0．29万元，吨水运行成本0．4元，且处理效果较稳定，出水可以满足国家排放标准。     

脂肪肝超声图像的定量分析

脂肪肝定量分析是对脂肪肝诊断的一种客观方法，可减少定性分析中人为因素所带来的偏差。对多例B超图像提取特征参数，并进行肝肾对比，从而在统计意义上分析正常肝与脂肪肝的参数差异性。     

人工环境中短蛸的繁殖行为和胚胎发生

通过一系列的模拟、对比、筛选试验，研究了短蛸在人工环境中的繁殖行为和胚胎发生，并与其在自然环境中的行为作比较，在人工环境中短蛸可以进行正常的繁殖行为，卵子正常发育的首要制约条件是携氧水的流动。产卵的合适温度范围15～22℃，卵子孵化适宜温度18～28℃。     

一种指纹门禁系统

介绍了指纹识别的基本原理 ,给出了指纹门禁系统的硬件组成、系统主要功能和软件实现方法。     

变频调速在恒压供水系统中的节能效果分析

通过介绍恒压供水系统原理，分析其节能效果在理论和实践上的可行性，为给排水及市政部门提供参考。     

基于重用的新产品开发研究

基于软件重用的思想和模型 ,提出基于重用的新产品开发过程模型 ,并对实现该模型的关键技术 ,即现有设计的结构化表示、设计检索和设计解的修改等进行了讨论 .在此基础上研究了面向重用的设计 .依据软件平台的概念 ,提出基于产品平台重用和关键部件重用的新产品开发方法 .给出不同企业新产品开发的重用策略 ,即平台重用和部件重用复合驱动策略、平台重用驱动策略、部件重用驱动策略和单一产品设计策略     

Abnormal expression of centrosome protein (centrin) in spermatozoa of male human infertility

To study the relations between male infertility and centrosome protein (centrin) and the functions of centrin in spermatogenesis, the matured spermatozoa of 10 normal male people and 18 male infertility patients were stained by immunofluorescence labeling antibody against centrin. The results showed that two fluorescence signal dots appeared in the normal male spermatozoa and were located at the base of flagellum. They are proximal centriole and distal centriole. However, in some spermatozoa of the male infertility, centrin protein was located abnormally at the base of flagellum and its staining signals were spread, the normal proximal and distal centrioles were confused and could not be recognized separately. These results suggest that abnormality of centrosome protein may be related to male infertility. This discovery may be used as a marker of abnormal sperm and male infertility.     

Study of transmembrane La3+ movement in rat ventricular myocytes by the patch-clamp technique

We have studied transmembrane La3+ movement in rat ventricular myocytes for the first time by using the whole-cell patch-clamp recording mode. La3+ (0.01-5.0 mmol/L) could not bring out inward currents through the L-type calcium channel in rat ventricular myocytes, while it could enter the cells by the same way carried by 1μmol/L ionomycin. When the outward Na+ concentration gradient is formed, La3+ can enter the cells via Na-Ca exchange, and the exchange currentsincrease with the increase of external La3+ concentrations. But compared with Na-Ca exchange currents in the same concentration, the former is only 14%-38% of the latter. The patch-clamp experiment indicates that La3+ normally can not enter ventricular myocytes through L-type calcium channel, but it can enter the cells via Na-Ca exchange.     

基于进化算法的拟可行方向法及其收敛性

在传统优化算法中嵌入一拟步骤 ,改善了算法的收敛性质 ;并用进化算法计算拟步骤 ,提高了算法的全局搜索能力 ,又不改变原算法的收敛性 .且研究了参数变化对算法的影响 ,并对算法进行了数值实现