基于伪随机码生成器的数字产品加密研究

阐述了随机序列在数字产品产权保护措施中的作用,并对随机序列生成器底层逻辑进行了研究;对线性同余发生器存在的缺陷进行了改进,设计了一种新的随机序列发生器,对改进前后发生器进行参数检验、均匀性检验等随机性进行测试,结果表明,改进后的随机序列发生器有较好的随机性和独立性.     

基于模糊关系与模糊推理的教师年终考核

分析了模糊关系、模糊关系合成和模糊推理,为便于讨论模糊关系的合成,定义了模糊关系主和从的概念;基于模糊推理的综合评价,将模糊集合看成是模糊关系,将模糊蕴含关系作为模糊单因素评价矩阵并输入模糊推理;最后,通过教师年终考核实例,提出了利用不同职称相对隶属度求得模糊蕴含矩阵的方法.该方法为模糊综合评价的应用提供了参考.     

钙,锌对玉米幼苗吸收镉,铅的影响

本试验以玉米幼苗为材料，研究了在溶液培养条件下，Ｃａ．Ｚｎ对玉米幼苗吸收Ｃｄ、Ｐｂ的影响及其特点。当在０～５０ｍｇ／Ｌ及０～３０ｍｇ／Ｌ范围内逐步增大Ｃｄ和Ｐｂ的浓度时，玉米幼苗对Ｃｄ、Ｐｂ的啄收随之增大。向上述体系中加入Ｃａ或Ｚｎ后，玉米幼苗对Ｃｄ、Ｐｂ的吸收减弱，其中Ｃａ的作用更为明显。从结果还可以看出，Ｃａ和Ｚｎ对玉米幼苗Ｃｄ、Ｐｂ的吸收和运输的抑制作用，并不随着Ｃｄ、Ｐｂ浓度在一定范围内的增大而减弱。     

A new research on auto compatible default theory

Ｅｘｔｅｎｓｉｏｎｉｓｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｃｏｎｃｅｐｔｉｎｄｅｆａｕｌｔｌｏｇｉｃ．Ｒｅｉｔｅｒｈａｄｍａｄｅｓｏｍｅｒｅｓｅａｒｃｈｏｎｔｈｅｓｐｅｃｉａｌｋｉｎｄｏｆｄｅｆａｕｌｔｌｏｇｉｃ,ｔｈａｔｉｓｎｏｒｍａｌｄｅｆａｕｌｔｌ...     

一类双单叶非-Bazilevi■函数类的Fekete-Szeg?不等式

引入了一类双单叶非-Bazilevi■解析函数族,利用分析的技巧研究了其Fekete-Szeg?不等式.     

The ninth-mode sectorial oscillation of acoustically levitated drops

We report on the ninth-mode sectorial oscillation of acoustically levitated drops excited by actively modulating sound pressure. A numerical computation based on the level set method was performed to model drop shape evolution by solving an incompressible two-phase flow problem. The calculated shapes of the oscillating drop are in good agreement with experimental observations. The relationship between the oscillation frequency and parameters describing the flattened drops is studied both experimentally and numerically. The frequency of the ninth-mode sectorial oscillation decreases with increasing equatorial radius and can be well-described by a modified Rayleigh equation.     

BAP31 is frequently overexpressed in patients with primary colorectal cancer and correlates with better prognosis

We previously showed that B cell receptor associated protein 31(BAP31) was significantly upregulated in colorectal cancer compared with normal mucosa epithelia. However, its expression pattern and pathological role in colorectal cancer are not clearly understood. In this study, we investigated whether the expression of BAP31 was associated with the clinicopathological parameters of colorectal cancer. The expression pattern of BAP31 was detected by immunohistochemistry on a tissue microarray in both primary ...     

Thermodynamics of the long range assembly of safranine T on molecular surfaces of nucleic acids

Ｔｈｅｓｔｕｄｙｏｆｔｈｅｓｕｐｒａｍｏｌｅｃｕｌａｒｒｅｃｏｇｎｉｔｉｏｎｏｆｏｒｇａｎｉｃｄｙｅｓｗｉｔｈｂｉｏｌｏｇｉｃａｌｍａｃｒｏｍｏｌｅｃｕｌｅｓｈａｓｂｅｃｏｍｅａｎｉｎｃｒｅａｓｉｎｇｌｙｉｎｔｅｒｅｓｔｅｄｒｅｓｅａｒｃｈｆｉｅｌｄ...     

城市道路坡度和车速对机动车排放的影响

为了分析城市道路坡度变化对机动车排放的影响,基于车载排放测试平台获取实际道路排放数据,并通过比功率反推完善数据。分析了在4个坡度区间的城市道路下,轻型车3种排放污染物(CO、HC、NOX)在不同速度区间的排放特性。研究结果表明:当车速处于20～50 km/h时,每升高一个坡度区间,3种污染物的质量排放率分别提升约22. 8%、23. 6%、24. 4%。在坡度一定的路面上,当车速处于20～40 km/h时,3种污染物处于高排放状态,其质量排放率比低排放状态分别提升约64. 3%、80. 0%、95. 0%。