RESEARCH ON THE STRUCTURE AND THE PROPERTY OF THE HYGROSCOPIC AND PERMEABLE FABRIC FOR SPORTSWEAR

Two structure models for knitting fabric are set up according to the wet-heat transmission principle of the fabric. Four kinds of knitted fabrics for sportswear are designed and produced. The wet-heat property of these fabrics is researched.     

三参数的Stirling数和Lah数

从多项式函数［ａｔ＋ｂ↓ｄ］ｎ引入三类新数，给出了这三类新数的递归关系，计数式，恒等式，生成函数和相关性等性质以及同古典的Ｓｔｉｒｌｉｎｇ数和Ｌａｈ数的紧密联系     

东荣矿区井壁受力及破坏原因

利用钢弦式传感器,实测东荣矿区冻结压力的大小及变化规律,结果表明冻结压力随时间而增长.在此基础上,分析了井壁破坏的原因,如实际冻结压力偏大,负摩擦力的不利影响等,提出了防止井壁破坏的措施.     

钒系催化剂表面结构及活性微区模型的研究

运用ＸＲＳ，ＩＲ和ＬＲＳ等手段，对萘氧化制苯酐钒系催化剂的表面组成和结构的联合分析结果表明：催化剂表面各元素以Ｖ：Ｋ：Ｓ：Ｏ＝１：２：２：１０的比例存在；催化剂以Ｖ２Ｏ５为基本骨架，形成了ＶＯ（ＳＯ４）＾２－及Ｓ２Ｏ７＾２－的配位形式，组成了［Ｋ２ＶＯ３ＳＯ４ＳＯ３］ｎ型的表面活性微区。     

一类线性周期系统的稳定性准则

考虑一类含小参数的线性周期系统利用Ｐｏｉｎｃａｒｅ映射给出零解稳定性的判别方法。     

基于人工神经网络的励磁调节、快控汽门和电阻掣动的协调控制

采用人工神经网络控制器解决了快速励磁、电阻掣动和快速汽门控制三种不同类型的控制措施之间的协调问题。算例表明可以靠人工神经网络励磁控制使远端发电机静稳极限达到机端电压恒定的线路功率极限，再靠快速励磁、电阻掣动和快速汽门控制三者的协调控制使发电机在瞬时故障和永久故障下的暂稳极限都接近事故前的静稳极限。从而可使远端火电厂的稳定问题得到理想的解决     

ΔP 积分作为暂稳控制切机启动判据的研究

提出了不平衡功率（ΔＰ）积分作为暂态稳定控制切机启动判据的方法。结合对黑龙江东部网暂态稳定性的分析，给出了ΔＰ积分启动判据的原理和特性。ΔＰ积分表征了故障后机组的加速程度，能够反映故障对系统冲击的大小。它具有反映短路故障远近以及短路故障严重程度的能力。ΔＰ积分值大小与系统稳定情况相关联，与离线暂态稳定计算结合可以制定出功能完善的对策表，做到细化切机对策、缩短切机出口时间、扩大稳定保护范围、简化对策表等。ΔＰ积分策略已经通过了数字仿真，并已应用在黑龙江东部网区域稳定控制系统中     

非标准设备驱动程序与微机DOS的接口

阐述了一种与ＤＯＳ接口的非标准设备驱动程序的编程方法，它增加了非标准设备驱动程序的适用性．     

Two classes of metabolites fromTheonella swinhoei are localized in distinct populations of bacterial symbionts

The marine spongeTheonella swinhoei (lithistid Family Theonellidae, Order Astrophorida) has yielded many important, bioactive natural products, most of which share structural features with bacterial natural products. The presence of microbial symbionts inT. swinhoei has been reported, and it was originally suggested that the cytotoxic macrolide swinholide A and many of the bioactive cyclic peptides fromT. swinhoei were all produced by symbiotic cyanobacteria. By transmission electron microscopy, we found four distinct cell populations to be consistently present inT. swinhoei: eukaryotic sponge cells, unicellular heterotrophic bacteria, unicellular cyanobacteria and filamentous heterotrophic bacteria. Purification and chemical analyses of each cell type showed the macrolide swinholide A to be limited to the mixed population of unicellular heterotrophic bacteria, and an anti-fungal cyclic peptide occurred only in the filamentous heterotrophic bacteria. Contrary to prior speculation, no major metabolites were located in the cyanobacteria or sponge cells.     

用LC并联谐振回路作为天线发送振幅键控信号的研究

用ＬＣ并联谐振回路作为天线发送振幅键控调制信号时，会出现较大的波形失真。文章较详细地分析了失真的原因，并对采取的克服措施进行了介绍。