善教与善政:西魏崛起变强的根本原因

西魏崛起、变强的根本原因在于它在大统十三年前就开始的善教和善政.善教即是构筑"民心工程".首先,营造西魏正统地位,以凝聚人心.其次,通过教化,确立关陇集团的核心价值观,指导和激励集团乃至全社会成员团结一致,共谋"强国富民".善政,指以"王道"为中心原则的国家政治和行政.其主要表现是:组织结构设计的合理性;组织成员的"亲族化"和"同乡化",最高执政者领导的有效性,行政权力的亲和性、柔和性,国家法则政令的便时性.善教和善政使西魏得以弥补种种先天的不足,从而促其崛起,变弱为强.     

Variable selection and collinearity processing for multivariate data via row-elastic-net regularization

AStA Advances in Statistical Analysis - Multivariate data is collected in many fields, such as chemometrics, econometrics, financial engineering and genetics. In multivariate data,...     

Lease or financial lease? Deterministic strategies for on-line financial lease problem with the second-hand transaction

Journal of Combinatorial Optimization - The residual value of the equipment is an important and inevitable issue for any decision-making process of equipment leasing. In this paper, we present an...     

Best routes selection in multimodal networks using multi-objective genetic algorithm

In this study, we propose a bi-level multi-objective Taguchi genetic algorithm for a multimodal routing problem with time windows. The mathematic model is constructed, which is featured by two optimal objectives, multiple available transportation manners and different demanded delivery times. After thoroughly analyzing the characteristics of the formulated model, a corresponding bi-level multi-objective Taguchi genetic algorithm is designed to find the Pareto-optimal front. At the upper level, a genetic multi-objective algorithm simultaneously searches the Pareto-optimal front and provides the most feasible routing path choices for the lower level. After generalizing the matrices of costs and time in a multimodal transportation network, the \(k\) -shortest path algorithm is applied to providing some potential feasible paths. A multi-objective genetic algorithm is proposed at the lower level to determine the local optimal combination of transportation manners for these potential feasible paths. To make the genetic algorithm more robust, sounder and faster, the Taguchi (orthogonal) experimental design method is adopted in generating the initial population and the crossover operator. The case study shows that the proposed algorithm can effectively find the Pareto-optimal front solutions and offer series of transportation routes with best combinations of transportation manners. The shipper can easily select the required shipping schemes with specified demands.     

铝刻蚀液磷酸浓度变化及TRIZ解决方案

铝刻蚀液由硝酸、醋酸、磷酸混合组成,各酸液浓度变化会对刻蚀产生影响.量产过程中,设备对硝酸和醋酸进行单酸补给,保持其浓度稳定.但磷酸不补给,其浓度会逐渐下降.该文结合铝刻蚀产线,研究了单酸补给开启与关闭情况下磷酸浓度对刻蚀程度的影响;然后结合TRIZ,对量产条件下磷酸浓度下降现象进行分析,并输出解决方案.实验结果表明:单酸补给关闭,硝酸、醋酸逐渐消耗,刻蚀能力降低;当单酸补给开启,硝酸和醋酸浓度稳定,磷酸浓度逐渐下降,刻蚀能力也降低,这是因为补给的硝酸、醋酸含有水,水稀释磷酸造成其浓度下降.刻蚀能力下降会导致金属残留,进而造成良率损伤.结合TRIZ方案,可以通过加大刻蚀区间排气、调整刻蚀出口空气帘流速、根据药液使用时间调整刻蚀产品类型等措施来规避磷酸浓度下降对刻蚀造成的影响.此项研究,为产品良率提升提供参考.     

唐朝至清朝东北地区人口迁移

移民构成了历史上东北地区人口增长的主体,东北地区人口迁移包括数次战争对人口的掠夺、华北地区逃荒的灾民、到东北地区开垦荒地以谋求生计的关内农民、跟随统治阶级移居东北地区的家仆等。总的看来,历史上东北地区的人口迁移以被迫迁移和强制性迁移为主,较为明显地体现了人口迁移中的距离因素的影响作用。并且人口迁移的意愿、规模等与东北地区丰富的自然资源直接相关。     

生物安全实验室活毒废水处理工艺研究

目的在借鉴吸收国外生物安全实验室（BSL）活毒废水处理工艺技术的基础上,结合我国国情,研究开发节能、环保、安全型成套处理技术工艺和设备,实现关键技术和产品国产化。方法处理系统采用序批式工艺,通过高温高压方式消毒灭菌。结果该处理工艺的技术指标：灭菌温度100～150℃（可调）,加热时间≤30rain,灭菌时间30—120min（可调）;处理后排放指标：活微生物为0,温度≤40℃,pH=6～9。结论该处理工艺整体设计简便灵活,符合BSL设计越简单越安全的理念,适合我国国情,可用于生物安全三级、四级实验室（BSL一3,-4）活毒废水处理。     

“80后”农民工择偶模式研究

本文通过对528份有效调查问卷的统计分析得知:80后农民工由于特殊的成长环境和成长经历,他们在择偶上出现了年龄偏早化、择偶观念逆传统化、婚期选择集中化等趋势。针对这种变化,笔者认为构建科学合理的择偶模式势在必行,政府、家庭、社会和个人应各尽其责,协调合作,帮助他们树立正确的人生观、价值观和择偶观,更好地促进社会主义新农村的建设。