软计算在污水处理过程控制中的应用

阐明了软计算技术在污水处理过程中应用的必要性、可行性及对行业所带来的社会效益和理论意义,着重分析了其在污水处理过程中的应用情况,简要探讨了软计算技术今后应深入研究的问题和方向,指出将软计算算法和智能控制策略结合起来有利于提高模型预测精度,提高过程控制系统动态响应能力。     

地空导弹部队集火射击模型

集火射击是地空导弹部队战术单位组织火力运用的一种重要方法,但是目前其组织实施主要依靠手工操作,比较复杂、耗时.对集火射击组织实施过程进行了深入分析,针对集火目标与火力单元的确定、集火射击诸元计算问题,建立了相关数学模型,实现了集火射击的自动化处理.通过在具体实例中的应用表明,该模型可信度高、实用性强,并且易于实现.     

新型冠状病毒肺炎疫情全球爆发期间民众群体心理研究【专题】

本文从认知过程、情绪过程和意志过程这三种心理过程的角度对2020年初席卷全球的新冠肺炎疫情期间的民众群体心理进行数据收集与初步分析,并在此基础上提出疫情期间民众群体心理的管理建议与对策,具体包括：引导对于新冠肺炎疫情的正确群体认知、调节新冠肺炎疫情引起的消极群体情绪和控制可能引发次生危机的社会意志与行为倾向三个方面。     

Experimental study on the detonation process of a pulse detonation engine with ionized seeds

An experimental platform of a pulse detonation engine (PDE) was established to study the effect of different K₂CO₃ ionized seed mass contents on the detonation process. The pressure and ion concentration were detected in the detonation process of the PDE with different contents of ionized seeds. The initiation process of the PDE at different ignition frequencies was studied. The results show that the gas conductivity in the detonation process increased by adding ionized seeds to the PDE tube, and the conductivity increased with the increase in ionized seed mass content. With the increase in ionized seed mass content, the range of the conductivity decreased. The PDE was successfully ignited and formed a stable detonation wave at ignition frequencies of 5 Hz and 10 Hz, and the peak pressure of the stable detonation with the ignition frequency of 5 Hz was 17% higher than that with an ignition frequency of 10 Hz. The detonation wave intensity was weakened and degenerated to a shock wave that propagated in the tube without the fuel filled at the ignition frequency of 20 Hz.     

多轮次打击情况下的跑道失效率计算

对机场跑道进行多轮次打击时,每轮打击之后对跑道失效率的计算可掌握是否达到预期打击目的,为下一轮打击提供决策依据.以马尔科夫链为理论依据对多轮次打击情况下的跑道失效率进行计算,只需计算出跑道失效率的一步转移概率矩阵,即可求出任意多次打击后跑道的失效率,避免了采用常规方法时的多层迭代计算,降低了多次打击计算的难度.实例证明,该方法具有运算速度快、精度高的特点,可用于多轮次打击情况下的跑道失效率计算问题.     

论消防部队基本建设跟踪审计过程控制

针对基本建设审计特点,提出逐步从规范基本建设审核审批程序入手,进行基建建设前期、施工中及结算、决算跟踪审计,发挥审计监督的机制性作用,达到基本建设活动全过程运作规范、有序、监督有效。     

建筑装修石材干挂施工工艺火灾危险性分析及对策

我国内装修工程石材干挂工艺从设计到施工均未考虑进行防火设计,加之施工过程中存在很多不规范现象,致使该工艺存在很大的火灾危险性。分析了该工艺的火灾危险性,提出了相应的对策,供消防设计审核人员、装修工程设计及施工人员参考。     

一种基于辅助交互的手抓握动作生成方法

针对沉浸式、非沉浸式和混合式虚拟维修系统中,维修动作交互过程繁琐、实现效果不佳的问题,提出一种高效的辅助交互方法,首先基于现有的维修动作规则和用户对维修任务的理解,建立了用户辅助信息接口和系统反馈辅助信息接口,前者由用户提供抓取目标、抓取手形和抓握点等辅助信息加速交互过程,系统通过后者反馈辅助信息帮助用户进一步决策,然后应用增广矩阵方法对经典逆向运动学算法进行扩展并生成具体的维修动作,最后应用该方法实现了装备车辆轮胎更换任务中维修动作的生成,维修动作交互过程的鲁棒性和效率得到显著提高。     

基于GAHP的模糊综合评判法在潜艇 作战方案评估中的应用

潜艇作战方案评估是辅助对潜指挥员决策的重要方法,而评估的科学性对决策的有效性影响很大.利用多人层次分析法(GAHP)和模糊综合评判相结合的方法,对潜艇作战方案进行评估,评估的结果可信度高,有利于对潜指挥员的正确决策.最后,通过实例证明了方法的有效性.     

Nonperiodic preventive maintenance for repairable systems

As a complex system with multiple components usually deteriorates with age, preventive maintenance (PM) is often performed to keep the system functioning in a good state to prolong its effective age. In this study, a nonhomogeneous Poisson process with a power law failure intensity is used to describe the deterioration of a repairable system, and the optimal nonperiodic PM schedule can be determined to minimize the expected total cost per unit time. However, since the determination of such optimal PM policies may involve numerous uncertainties, which typically make the analyses difficult to perform because of the scarcity of data, a Bayesian decision model, which utilizes all available information effectively, is also proposed for determining the optimal PM strategies. A numerical example with a real failure data set is used to illustrate the effectiveness of the proposed approach. The results show that the optimal schedules derived by Bayesian approach are relatively more conservative than that for non‐Bayesian approach because of the uncertainty of the intensity function, and if the intensity function are updated using the collected data set, which indicates more severe deterioration than the prior belief, replacing the entire system instead of frequent PM activities before serious deterioration is suggested. © 2010 Wiley Periodicals, Inc. Naval Research Logistics, 2010