提高中碳锰铁精炼电炉炉龄的实践

通过对精炼电炉炉体改造和出铁口材质、砖型的更新，解决了在中碳锰铁生产过程中炉眼易损问题，提高了炉龄，降低了生产成本。     

湿法停炉保护优点多 建议采用YZ—101防腐阻垢剂作为湿法炉保护剂

介绍了湿法炉保护的作用原理,YZ—101防腐阻垢剂的使用方法、注意事项以及使用后所带来的经济效益。     

微型液压钻的应用

介绍国外在特殊场所采用的先进钻孔技术的微型液压钻。它具有可手控的永久磁性基座、独特的刀具结构、有效的火花控制和极大的便携性,适用于特殊环境下的钻孔作业。     

对国企人才资源管理的几点思考

人力资源管理中的人才资源管理是现代企业面临的一个重大挑战。国企中的人才资源管理需要不断进行观念创新，正确认识人才的流动，人才的识别选拔、人才的能上能下、人才的文化物质需求、人才的培育评价、人才的使用储备。     

Measured equation of invariance with linear tensor relation for three-dimensional scattering problems

The postulate of a linear tensor relation in the measured equation of invariance (MEI) is proposed for three-dimensional (3D) problems. As a result, all three components of the field vector to be solved are coupled in the MEI. Combined with the finite difference method, the present method is applied to the analysis of scattering by 3D conducting objects and results in a significant improvement in the accuracy of numerical results as compared to those obtained with an uncoupled linear relation.     

粘接技术在油罐堵漏中的应用

介绍了粘接技术的种类、原理及其技术要领，并引用实例说明了该技术的优点。粘接堵漏技术将成为油罐渗漏维修的一种重要方法。     

管道完整性管理标准及其支持体系

通过对美国管道完整性管理标准ASME B31.8S和API 1160内容的论述，总结了管道完整性管理标准的3个特点：①管道完整性管理标准是一种过程标准；②管道完整性管理标准提供了一种管道运行管理的模式和理念，反映了当前管道安全管理从单一安全目标发展到优化、增效、提高综合经济效益的多目标趋向；③完整性管理是以管道安全为目标的系统管理体系,管道完整性管理标准是一种体系规范。从管道完整性管理系统的角度，列举了美国管道完整性管理的主要支持性标准、规范和法律文件。最后对国内管道完整性管理研究提出了建议。     

负载Pd的分子筛催化剂上烷烃的异构化反应

采用吡啶吸附红外光谱和氨程序升温脱附法对负载Pd的几种分子筛催化剂(Pd/,βPd/ZSM-22,Pd/SAPO-11)的表面酸性进行了测定,并以正十二烷为模型化合物,在连续流动固定床微型反应器上考察了这几种分子筛催化剂的异构化反应性能。实验结果表明,Pd/β催化剂的酸量大且具有强酸中心;Pd/SAPO-11和Pd/ZSM-22催化剂的酸强度分布类似,但前者的酸量较小,后者的酸量适中。在正十二烷的转化率为65%左右时,对于单、双甲基C12异构体的选择性,Pd/ZSM-22催化剂与Pd/SAPO-11催化剂相近,高于Pd/β催化剂,而催化活性的高低顺序为:Pd/β>Pd/ZSM-22>Pd/SAPO-11,说明Pd/ZSM-22催化剂比较适合于大分子烷烃的异构化反应。在100mL中试装置上,以大庆减四线糠醛精制油为原料,对实验结果进行了验证。     

Palogue油田复合油藏动态响应及特征描述

以简单的复合油藏模型理论和方法为基础,以Palogue油田的实际测试井为例,介绍了复合油藏模型的试井动态识别与模型拟合,及与地质静态资料相结合的油藏综合描述过程.该描述方法将会对实际试井解释和油藏综合描述工作有所借鉴和帮助.     

Theory of Switched RF Resonators

Transient characteristics of switched resonators have been studied. The resonators exhibit controllable impedance and energy storage behaviors during an alternating charging and discharging process. It is discovered that these unique characteristics of switched resonators can lead to novel RF envelope signal processing functions. The paper discusses the basic theory of switched resonators and the designing methodology of relevant RF signal processing applications. Two applications are presented as examples. The first example is a variable, reflective attenuator which uses the controllable impedance of the switched resonators to achieve different attenuation/reflection levels. In the second example, a simple, compact and efficient RF pulse compression technique based on the switched resonator concept is introduced. It utilizes the charging/discharging characteristics of the circuit resonator by varying the resonator's Q-factor. The approach compresses the duration of the modulated pulse without changing the phase characteristics of the RF carrier. The pulse compression technique can also be implemented with other type of resonators including distributed resonators, as demonstrated through the experiments