瞬态机械阻抗法在丹东地区桩基检测中的应用

介绍瞬态机械阻抗法测桩的基本原理和工程中的测试实例     

Blind Equalization Algorithm for Different Eigenvalue Spread Channels

Wireless Personal Communications - The performance of blind equalization algorithm is closely related to the characteristics of the channel. Eigenvalue spread of the channel can reflect the...     

杭州第四系沉积土的动力特性研究

第四纪以来,杭州市气候变化剧烈,海水面升降频繁,加上新构造运动的影响,使得杭州市沉积土成因类型繁多,厚度变化大。同时古苕溪、古钱塘江多次改道,冲刷切割,也使得地层相变多而复杂。为了研究杭州市第四系沉积土的动力特性,通过对该区域土样进行动三轴试验,从而得到工程场地土的动应力-应变骨干曲线以及动强度值变化曲线,并得到对杭州市及周边村镇的抗震减灾规划具有重要意义的结论,这也将会对杭州市高速公路与高速铁路的建设产生显著的影响。     

Joint resource allocation and interference management in the D2D uplink underlaying cellular networks

This paper investigates the problem of joint interference management and resource allocation in device-to-device (D2D) uplink underlaying cellular networks. To improve the D2D system sum throughput, an overlapping coalition formation game (OCFG) is proposed to achieve resource allocation. In the game, a novel initialization in term of the priority sequence is proposed to rapidly form the initial coalitions. During the coalition formation, the merging and splitting sequences are adopted to guide the order that D2D users merge in or split from the coalition. Here the splitting sequences are formed according to cross-tier interference strength and the merging sequence is based on matching theory. Besides, a power control scheme is formulated to optimize the power allocation. The performance of the proposed algorithm is analyzed and verified through simulations.

     

新形势下国家安全观的演变与中国国家安全观的重构

全球化导致国际安全形势发生深刻变化，安全环境更加复杂，安全威胁更加多样，安全的性质和特点也有所变化。在此背景下，人们对国家安全产生了新的认识和理解。中国根据形势的变化重新构建了国家安全观念以维护本国及地区乃至世界的安全与稳定。     

影响熔加法搪瓷黄色釉中镉溶出量的因素

影响熔加法搪瓷黄色釉中镉溶出量的因素张国武，陶瑛，王承遇，谷秀梅，车英华，孔繁利（大连轻工业学院１１６００１）（大连搪瓷工业总厂１１６０２１）ＴｈｅＦａｃｔｏｒｓＩｎｆｌｕｅｎｃｉｎｇｏｎＣａｄｍｉｕｍＲｅｌｅａｓｅｆｒｏｍＹｅｌｌｏｗＥｎａｍｅｌＧ...     

斜井井筒涌水量数学模型及计算的研究

根据达尔西地下水渗透定律，建立了不同含水层斜井井筒涌水量的数学模型并推导出其理论计算公式。     

Lotus Domino Web编程技巧

介绍了一种Lotus Domino在Web上的编程技巧，使用非常简单的办法生成了一个在Web上没有的新组件：组合框．     

基于MWorks与Simulink的联合仿真

针对多领域统一建模和仿真问题,介绍模型耦合、求解器耦合和进程耦合等3种联合仿真途径,从模型的数学原理和软件架构方面研究多领域建模仿真平台MWorks与MATLAB/Simulink之间基于模型耦合的联合仿真,并基于Simulink的S-function和MWorks的COM实现两个建模仿真软件之间的联合仿真.多领域模型实例证明该联合仿真软件有效,可拓展Simulink的应用范围.     

A novel ammonia sensor based on high density, small diameter polypyrrole nanowire arrays

A novel sensor based on the PPy nanowire arrays with high density, small diameter (about 50 nm) presented a significantly high surface-to-volume ratio. Conducting polypyrrole (PPy) nanowire arrays were synthesized by electropolymerization in the anodic aluminum oxide (AAO) template which was fabricated by two-step anodizing process. Then, two sides of the PPys/AAO were pasted by Si substrates and the AAO template was etched by HF acid. At last, the gold wires were attached on Si substrates, and the sensor came into being. The sensor was sensitive to ammonia at room temperature and showed relatively high response in low concentration and comparatively short response and recovery time.