试论我国解放后炼铁技术路线

本文简要回顾建国以来我国炼铁技术路线的演变过程，并展望２１世纪的前景。     

“十一五”我国石油替代和再生能源部分产品发展分析

能源多元化对保障国家能源安全,紧跟世界能源发展趋势,及时转变能源发展战略的意义重大。分类讨论替代燃料,分析其发展态势和需要的支撑条件。     

Rescheduling policies for large-scale task allocation of autonomous straddle carriers under uncertainty at automated container terminals

This paper investigates replanning strategies for container-transportation task allocation of autonomous Straddle Carriers (SC) at automated container terminals. The strategies address the problem of large-scale scheduling in the context of uncertainty (especially uncertainty associated with unexpected events such as the arrival of a new task). Two rescheduling policies–Rescheduling New arrival Jobs (RNJ) policy and Rescheduling Combination of new and unexecuted Jobs (RCJ) policy–are presented and compared for long-term Autonomous SC Scheduling (ASCS) under the uncertainty of new job arrival. The long-term performance of the two rescheduling policies is evaluated using a multi-objective cost function (i.e., the sum of the costs of SC travelling, SC waiting, and delay of finishing high-priority jobs). This evaluation is conducted based on two different ASCS solving algorithms–an exact algorithm (i.e., branch-and-bound with column generation (BBCG) algorithm) and an approximate algorithm (i.e., auction algorithm)–to get the schedule of each short-term planning for the policy. Based on the map of an actual fully-automated container terminal, simulation and comparative results demonstrate the quality advantage of the RCJ policy compared with the RNJ policy for task allocation of autonomous straddle carriers under uncertainty. Long-term testing results also show that although the auction algorithm is much more efficient than the BBCG algorithm for practical applications, it is not effective enough, even when employed by the superior RCJ policy, to achieve high-quality scheduling of autonomous SCs at the container terminals.     

人身意外伤害保险中介代理互联网销售系统的设计与实现

介绍了中国人寿保险股份有限公司湖南省分公司人身意外伤害保险中介代理互联网销售系统的设计与实现。该系统实现了人身意外伤害保险中介代理实时出单,以及与公司短险业务处理系统、单证管理系统的实时对接,具有较强的可扩展性和实用性。     

努力提高化工技术装备国产化水平

介绍“七五”“八五”期间，化工技术装备国产化取得的进展和经验，阐述今后提高化工国产化的新思路和新目标，以及政策和举措。     

我国利用天然气发展分布式能源技术的探讨

介绍了分布式能源技术的基本概念和主要特点。结合我国的天然气利用状况提出了分布式能源技术推广应用的差别化政策和相关建议。     

Optimal temperature policies for catalytic transport reactors under periodic operation

The influence of inlet gas concentration cycling on the optimal temperature policy of catalytic transport reactors is studied theoretically. The model considered is based on plug flow of gas and catalyst particles with negligible interand intra-particle diffusional resistances and concentration dependent deactivation kinetics. To utilise the concentration of the reactant and the activity of the deactivating catalyst fully a proper temperature sequence along the reactor is needed. Thus, a general optimal temperature policy using the continuous minimum principle is derived for the reactor under periodic operation. The model equations are solved analytically for gas concentration, activity and temperature profiles. Resonance behaviour (maximum in conversion with pulse width) is obtained using the optimal temperature policy for certain sets of parameters. The effects of activation energy groups, reaction and deactivation constant groups and inlet temperature on the optimal temperature policy under periodic operation are evaluated. In all cases an improvement in conversion with the optimal temperature policy under periodic operation over that with an isothermal policy under periodic operation is obtained. A suboptimal policy, comprising constant temperature over different reactor sections, which is useful for implementation purposes is also discussed.     

“十一五”时期能源供求形势、生物质能源发展及相关政策

介绍我国能源生产、消费形势,阐明发展生物质能源的客观要求,解释生物质能源产业发展政策。     

全球催化剂工业动向

介绍了在全球范围内催化剂工业的现状,包括市场需求及经营形势。由于美国及其他国家环保法规日趋严格迫使炼油工业采用清洁燃料催化剂,导致炼油催化剂需求量上升,聚烯烃催化剂工业获得较大发展,炼油催化剂技术推陈出新。特种化学品产品催化剂和精细化工领域的催化剂工业将面临挑战。     

受端电网区域无功自动控制调控策略研究

要确保受端电压的稳定性,就要保证有足够的无功补偿。静态无功补偿可以有效降低网损,并提供稳定的无功功率。但在电网系统变得越来越复杂的情况下,静态无功补偿已经很难满足需求,这时,动态无功补偿作为一种更为有效的无功补偿方式应运而生了。