精密铜带圆盘纵剪机

通过对精密铜带圆盘剪切机的工作原理和工艺过程进行研究，对引进的美国剪切机进行了技术改造，设计制作了新的装置，实现了软态铜带的剪切。     

张家口市煤气管网防腐调研

通过对煤气管道调查,掌握了管道机体腐蚀状况并查明原因,提出了加强管道防腐蚀的建议.     

长江中上游地区土壤人渗速率的空间分异研究

利用双套环法对长江中上游水土流失严重区的50个县（市）进行原他测试，对其典型土壤的稳渗速率及其影响因素进行了分析研究。结果表明：土壤稳渗速率在长江中上游地区呈现规律性的地域分异，四川盆地以及毕节地区是稳渗速率高值区，陕南和陇南地区、三峡库区以及丹江口库区足稳渗速率一般区，金沙江下游地区以及湘东赣南红壤丘陵区是稳渗速率低值区；上壤稳渗速率随土类发生有规律变化，黄壤系列土类最大，然后是石灰土、紫色土，红壤系列土类稳渗速率最小；土壤稳渗速率与质量密度呈负相关关系，与孔隙度、大于0．25mm风干土水稳性团粒含量、有机质含量以及粉／粘呈正相关关系。     

Anthony D. Wagner: Award for Distinguished Scientific Early Career Contributions to Psychology.

Presents the citation for Anthony D. Wagner, who received the Award for Distinguished Scientific Early Career Contributions to Psychology (cognition and human learning) "for outstanding and innovative research on the neural basis of memory and executive control." A brief profile and a selected bibliography accompany the citation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Accurate higher-order analytical approximate solutions to nonconservative nonlinear oscillators and application to van der Pol damped oscillators

In general, this paper deals with general nonlinear oscillations of a nonconservative and single degree-of-freedom system with odd nonlinearity and, in particular, it presents accurate higher-order analytical approximate solutions to van der Pol damped nonlinear oscillators having odd nonlinearity and the Rayleigh equation. By combining the linearization of the governing equation with harmonic balancing and the method of averaging, we establish accurate analytical approximate solutions for the general weakly damped nonlinear systems. Unlike the classical harmonic balance method, simple linear algebraic equations instead of nonlinear algebraic equations are obtained upon linearization prior to harmonic balancing. The combination of these two methods results in very accurate transient response of the periodic solution. In addition and for the first time, this paper also presents a method for deducing fourth-, fifth- and higher-order linearized governing equations from the lower-order equations without the requirement of formulating the problem from the first principle. Three examples including the van der Pol damped nonlinear oscillator are presented to illustrate the excellent agreement with approximate solution using the exact frequency.     

Strain waves in colliding bars having nonparallel faces

The paper reports the experimental investigation data for the effect that nonparallel faces of bars under impact exert on the parameters of longitudinal and bending strain waves generated in the bars. The changes in stress magnitudes in the bar under impact with growing angle of the impact faces offset are described. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 73–78, November–December, 2006.     

运用古地磁方法测定油气成藏时限——以桩海地区下古生界潜山油气藏为例

运用古地磁厘定油气成藏时限是一种新的岩石地球物理方法。对采于桩海地区下古生界的6块岩心样品进行了系统交变退磁实验,分离出2个正极性分量:A分量(10～30mT)是现代地磁场的重磁化;B分量(30～60mT)是新生代烃类流体与下古生界碳酸岩储层相互作用的结果,对应的古地磁极位置为288.95oE、73.58oN。参考华北地块新生代古地磁极移曲线,推定本区下古生界古潜山油气藏的成藏时限为晚第三纪中新世早期(14～18Ma)。这种新方法在中、新生代油气藏成藏时限研究中具有一定的应用前景。     

Efficient and accurate waveguide mode computation using BI‐RME and Lanczos methods

In this paper, a special purpose algorithm for solving large eigenvalue problems based on the Lanczos method is successfully applied to an engineering problem: the electromagnetic analysis and design of passive waveguide devices. For dealing with such complex problems, the boundary integral‐resonant mode expansion (BI‐RME) technique has been recently proposed. This technique solves integral equations (IEs) through the well‐known method of moments (MoM), thus leading to structured eigenvalue problems. These problems frequently become very large when solving complex arbitrary geometries with high accuracy. In such cases, the eigenvalue problem cannot be efficiently solved with standard methods by means of personal computers, essentially due to CPU time and memory allocation requirements. In this paper, we propose an alternative technique, based on the Lanczos method, for the fast and accurate solution of large BI‐RME generalized eigenvalue problems. The novel theoretical aspects of this approach, as well as the impacton the original BI‐RME formulation, are described. Comparative benchmarks are also successfully presented for the full‐wave analysis and design of real passive microwave devices. Copyright © 2005 John Wiley Sons, Ltd.     

Sicherer und wirtschaftlicher Betrieb von Kraftwerken – Ergebnis der Forschung im Bereich Werkstoffe,Auslegung und Instandhaltung

Safe and Economic Operation of Power Plants – Research Results in the Field of Materials, Design and Maintenance Components of power plants which undergo high temperatures are subjected to complex loading situations. The requirements on the used materials result from the special operation conditions of the plants and have to be adjusted to the steadily growing requirements on higher efficiency of the complete power plant as well as to those of safe and economic operation. The expenses for control and downtimes are directly connected with economic efficiency and availability. However, in case of new procedures or components it is not possible to revert to the existing know‐how. Different failure mechanisms than known before can occur. The same goes for the load situation. Therefore the knowledge base has to be extended to in‐advance or even parallely running scientific examinations that life assessment and maintenance strategies can be applied which guarantee the operational reliability and the efficiency of the plant. The main emphasis of these F&E works has to be put on condition monitoring based on actual operational data, the standard materials’ and component’s behaviour (deformation, damage and failure behaviour) in connection with design of components and the related material laws. In the framework of applied AVIF projects, following problems are handled:. – qualification of materials by determinating parameters related to practise. – optimal design of components by making available material laws and numerical tools. – economic manufacturing of components by qualifying processing methods such as welding. – The results can be transferred to concepts for safe and economic operation of power plants, especially for newly introduced materials for which there is no operational experience available.