梨树断陷西丁家地区沙河子组—营城组沉积体系及演化过程研究

根据岩心、测录井、地震以及分析化验资料,运用沉积学原理和方法,对西丁家地区沙河子组—营城组时期沉积相和沉积体系进行综合研究。研究表明该区域在早白垩世主要发育湖泊、辫状河三角洲相等四大类沉积相及其亚相和微相。结合研究区＂西断东超＂型箕状断陷的构造演化特征,在沉积相认识的基础上组合出两大类沉积体系：从沙河子组沉积期至营城组沉积期,北部斜坡带由扇三角洲—水下扇沉积体系演化为辫状河三角洲—湖泊沉积体系;西部断阶带主要发育扇三角洲—水下扇沉积体系。     

浅谈如何做好井队职工一人一事思想政治工作

一人一事的思想政治工作既是党的思想政治工作的传家宝,也是解决群众问题的金钥匙。做好企业的一人一事思想政治工作就是要为职工群众解难帮困、化解矛盾,调动他们的工作热情。要做职工的思想政治工作,主要三个方面入手:一是要准确掌握队伍思想状况;二是要拿准职工思想脉搏;三是要运用行之有效的工作方法。     

On learning and development, Piagetian style: I. A reply to Lefebvre-Pinard.

Examines the equilibration theory of Piaget (learning vs development, stage transitions) to make more explicit the methodological foundations of B. Inhelder et al (1974). In this connection, the "problem-solving" learning method used by these authors is analyzed by means of the new concept of "learning loops." Similarly, the successful equilibration learning method used by M. Lefebvre and A. Pinard (1974) is analyzed and shown to involve executive facilitation and chunking (coordination) of 2 crucial schemes. A process-structural model of conservation acquisition previously developed by the present author, and its empirical tests by R. Case (1975) and by G. M. Parkinson (1975), are used to illustrate and to empirically support the process-structural differences theoretically found between these 2 equilibration methods. (54 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Development of a Reconfigurable Platform for Manufacturing Equipment Control

In modern manufacturing equipment control area,controller is required to deliver higher computing capability for adopting advanced algorithms to meet speed and accuracy requirements,and reconfigurabilities for changing or(and)adding features or functions.This paper presents a methodology in design and implementation of a high performance and reconfigurable platform for manufacturing equipment control.This methodology is in virtue of system on a programmable chip(SoPC)technolo- gy but replacing the on-chip processor by an external high performance,floating-point digital signal processor(DSP).The appli- cation of the DSP is designed as a multi-threaded framework,which has more flexibilities than a traditional single-loop one.Fur- thermore,the field programmable gate array(FPGA)system can be reconfigured easily and quickly to meet a new requirement by dragging and dropping pre-built components in a SoPC building environment.As a result,the controller platform is more recon- figurable in terms of algorithms and functions.This platform is implemented in a 3-axis milling machine control and the result indicates that the design and implementation presented in this paper is feasible.     

一次同余方程组的一种矩阵解法

同余方程组是数论中一个极为有用的课题。文中考虑的是具有一个未知数而具有不同的模的一次同余方程组。一般可以用中国剩余定理或者递推算法等方法给出一次同余方程组的解法。利用矩阵的初等变换和矩阵的Sm ith标准形给出了求解一次同余方程组的一种矩阵解法。     

基于P89LPC935便携式智能电疗仪的设计

在医疗器械领域里,电疗器械有了较大的发展,但目前电疗治疗仪的一些不足之处使其很难得到推广使用。本论文介绍了目前电疗治疗仪现状与不足,据此研制了一种新型便携式智能电疗仪。该电疗仪采用电疗的机理,选用Philips公司的低功耗的P89LPC935单片机为控制核心,具有键盘扫描、数据显示和频率强度不断变化脉冲波形输出等功能。通过便携式智能电疗治疗仪的设计,探索出一条研制便携式智能医疗器械的思路,为开发其它理疗器械提供设计参考。     

日立300MW机组围带裂纹的分析及处理方法

针对湖北鄂州发电有限责任公司的2台300MW机组18级围带的进汽侧自铆钉头处开始的贯穿性裂纹进行分析和讨论,找出裂纹产生的原因,并提出处理措施.实施后机组顺利投运.     

γ-ray self-absorption of cylindrical fissile material

The self-absorption of γ-ray emitted from cylindrical fissile materials, such as ^235U and ^239Pu. does not possess spherical symmetry. The analytical formulae of self-absorption for y-ray throughout the cylinder have been obtained. The intensity of γ-ray is a function of y-ray outgoing directions and cylindrical configorations, accordingly one can acquire the information about geometrical configuration of cylindrical fissile materials through multi-location measurements. Further more. the method is given in this article, The result can be applied to the fissile material safeguard, such as nuclear monitoring and verifying.     

表征PAN纤维和炭纤维微细结构的HRTEM样品制备方法

为用高分辨透射电子显微术(HRTEM)表征聚丙烯腈(PAN)纤维和炭纤维的微细结构，从纤维性能出发，探讨研碎、离子束减薄和超薄生物切片三种制备方法及其工艺步骤，结合实验结果，对比了三种制备方法的原理、优缺点，提出了制备方法的适用范围和选择原则，并推断适于表征预氧化纤维微细结构的样品制备方法。与生物样品的制备方法类似，把超薄生物切片法引入到纤维材料HRTEM样品制备领域，为系统研究炭纤维微细结构的演变提供了线索。     

锻造零件缺陷分析

介绍了四种典型锻造缺陷案例并进行了详尽的追述，主要从锻造过程中金属流动和冶金缺陷的重新分布的角度对锻造缺陷产生原因作了比较全面的解析，提出了解决这些问题比较成熟的经验和方法。