多功能物理演示实验室的构建

本文结合东华理工大学物理演示实验室的建设实践,分析了物理演示实验室的教学辅助、科普教育和创新实践等教育功能,并提出了建设多功能物理演示实验室的思路。     

金属基仿生超滑表面制造及其应用

金属是人类社会赖以生存和发展的重要物质基础,是构成现代文明社会的支撑材料,增加金属材料的特殊性能,拓宽金属材料的应用范围,已经成为自然科学交叉研究的热点。受自然界启发,研究人员通过探究猪笼草口缘区的超滑行为,在微/纳米结构基底中注入低表面能润滑液,形成固液复合涂层,设计并制备出具有特殊润湿性的仿生超滑表面,显现出优异的自愈、防冰、防污、耐腐蚀、抗生物黏附、自清洁等性能。该方法为金属基体上设计构建仿生超滑表面,并实现其表面多功能性,进而为其在海洋防污、生物医疗、航空航天、制冷、工业生产等领域实现更广泛的应用提供了可能。本文从仿生超滑表面的设计原理、制备工艺、金属基体仿生超滑表面的应用以及未来发展趋势和挑战四个方面对金属基体仿生超滑表面的研究进展进行了综述。     

岸边集装箱起重机多功能液压系统控制软件的改进

针对岸边集装箱起重机原多功能液压系统的控制软件在满足装卸生产要求上存在的问题，根据实际装卸要求，在分析原多功能液压系统工作原理的基础上，重新确定了控制系统的技术要求，编制了相应的控制程序，经改进，系统队使用时，对位置不准的集装箱平均吊运时间由８．６ｍｉｎ减少到３．０ｍｉｎ，提高平均装卸效率３０％。     

A selection of convex-compact-valued multi-functions with remarkable properties: the steiner selection

This paper shows how the Steiner selection has very nice properties in view of differentiability, measurability, and integrability of multi-functions.     

多重机制杂质吸附萃取净化-快速液相色谱-串联质谱法测定鱼组织中11种同化激素

建立了准确、灵敏的鱼组织中11种同化激素(勃地酮、雄烯二酮、诺龙、美雄酮、甲睾酮、睾酮、醋酸睾酮、群勃龙、丙酸睾酮、康力龙、氟甲睾酮)的多重机制杂质吸附萃取净化-快速液相色谱-串联质谱的分析方法。鱼组织均质样品经甲醇提取后,在上清液中加入一定量的C18固体吸附剂、中性氧化铝吸附剂和氨基功能化纳米吸附剂实现快速净化。采用Shim-Pack XR-ODSII色谱柱(100 mm×2.0 mm, 2.2 μm)分离,以乙腈(含0.1%甲酸)和水(含0.1%甲酸)为流动相进行梯度洗脱,电喷雾正离子多反应监测(MRM)模式下检测,外标法定量。结果表明,11种目标化合物在线性范围内具有良好的线性关系,相关系数大于0.999,其在鱼组织中的检出限(S/N＞3)为0.03～0.4 μg/kg,定量限(S/N＞10)为0.1～1.5 μg/kg,平均回收率为80.9%～98.1%,相对标准偏差(RSD)为5.2%～11.5%。该方法简便、快速、准确,可用于鱼组织中同化激素的定性、定量监测。     

Periodic solutions for a class of differential inclusions in general Banach spaces

Let X be a real Banach space, an m-accretive operator and a multi-function which is 2π-periodic with respect to its first argument, has nonempty, closed, convex and weakly compact values and is strongly-weakly upper semicontinuous. In this paper we prove the existence of at least one solution for the problem

     

新型多功能集成光学耐压保护窗口

针对特殊环境下光学系统的需求，设计了一种具有三层结构的新型光学耐压保护窗口，其外层为石英玻璃，内层为开有小孔的化学钢化K9玻璃，中间为夹有电阻丝的PVB（聚乙烯醇缩丁醛）胶层，电阻丝通过内层玻璃上的小孔引出。通过强度仿真优化得出了内层玻璃最佳开孔位置和孔直径，设计了这种三层结构的保护窗口的工艺流程，并对具有三层结构的保护窗口进行了性能测试和验证。结果表明，这种新型耐压窗口集成了透光、耐压、抗冲击、加热、表面快速脱水等功能。     

Prevention of carcinogenesis and cancer metastasis by bovine lactoferrin

Increasing attention is being paid to chemopreventive agents for individuals at high risk of cancer. We have concentrated on bovine lactoferrin (bLF), an 80 kDa iron-binding glycoprotein known to have anti-microbial and immunoprotective effects. Lactoferrin is particularly abundant in colostrum, and is also present in tears, saliva and seminal and uterine secretions. However, only little is known regarding its influence on carcinogenesis. We have shown preventive effects of bLF and its fragment peptide, lactoferricin (bLFcin), consisting of a 25 amino acid sequence without iron binding capacity, on chemically-induced colon carcinogenesis in the rat and transplanted carcinoma cell metastasis in the mouse. The mechanisms are wide-spectrum, including elevation of caspase-1 and IL-18 in the small intestine, enhancement of the cell killing activity of cytotoxic T and natural killer (NK) cells, and anti-inflammatory and anti-angiogenic effects. It also inhibits the induction of liver CYP1A2, a carcinogen activating enzyme, and induces apoptosis in the colon epithelium of carcinogen treated rats. Thus, bLF possesses multi-functional potential to suppress carcinogenesis and is a good candidate for practical application in humans.