服装裁剪路径优化与仿真系统的开发研究

为提高服装自动裁剪系统的裁剪效率、减少错误而进行了开发。分析了当前服装自动裁剪系统使用中存在的问题,设计了样片的数据结构、针对样片的排序问题设计了优化算法,并说明了对称片起刀点的设置方法。系统经工厂生产试用,达到了减少空行程、提高裁剪效率、降低成本的目的。     

铁路集装箱空箱调运最优化方案研究

在分析铁路集装箱空箱调运存在问题的基础上，运用线性双层规划理论，以运输成本最小和托运人满意度最大为目标，建立铁路集装箱空箱调运最优化模型，并通过实例检验模型的优化效果，以降低运营成本、提高集装箱使用效率。     

几种细化教学的实践与尝试

细化教学是指在教学过程中,把教学内容或学生人数科学、合理地分成最小的学习单元,从而高效、高质量地完成教学目标。教学过程最优化的主要标准,是完成教学任务的效率和质量,以及师生在完成这些任务时所花费的时间和精力。文章根据细化教学实践,论证了其完成教学任务的效率、质量、时间和精力正好符合最优化的标准。     

企业生态位优化的理论基础及路径选择

随着市场竞争的日渐激烈,越来越多的企业认识到企业竞争优势的持续保持,既离不开企业生态位的合理构建,更需要企业生态位的能动优化。企业需要在一定的理论基础上进行生态位优化,并且要科学选择企业生态位优化的策略途径,只有这样,才能提高企业生态位优化的预期管理绩效,切实推进企业的健康生存和持续发展。     

微型货车车身开裂改进设计

对微型货车结构开裂的原因进行分析后发现,造成问题的原因主要是车身连接结构设计不合理,其次是局部应力集中和工艺的缺陷。据此,文章提出了结构改进措施。实车应变测试结果表明,改进措施是有效的。     

基于价值工程的装饰工程方案优化方法

本文重点研究基于价值工程的装饰工程方案优化方法,提出根据消费者需求确定功能重要性系数的方法,并建立装饰工程成本核算体系,根据功能评价值及功能现实成本来分析功能与成本的匹配度,以此确定优化方案。     

INCORPORATING RISK AND AMBIGUITY AVERSION INTO A HYBRID MODEL OF DEFAULT

It is well known that purely structural models of default cannot explain short‐term credit spreads, while purely intensity‐based models lead to completely unpredictable default events. Here we introduce a hybrid model of default, in which a firm enters a “distressed” state once its nontradable credit worthiness index hits a critical level. The distressed firm then defaults upon the next arrival of a Poisson process. To value defaultable bonds and credit default swaps (CDSs), we introduce the concept of robust indifference pricing. This paradigm incorporates both risk aversion and model uncertainty. In robust indifference pricing, the optimization problem is modified to include optimizing over a set of candidate measures, in addition to optimizing over trading strategies, subject to a measure dependent penalty. Using our model and valuation framework, we derive analytical solutions for bond yields and CDS spreads, and find that while ambiguity aversion plays a similar role to risk aversion, it also has distinct effects. In particular, ambiguity aversion allows for significant short‐term spreads.     

资源型城市经济转型模式及优化研究

资源型城市的转型以其在国家经济中的重要地位和实践操作中的复杂程度一直被学术界作为重要课题来研究，其中一个方向聚焦在经济转型模式上。经济转型的基础和核心是产业转型，在转型模式的内涵、分类、影响因素和评价指标等方面得到了充分体现。转型模式的优化可通过强化循环经济在产业转型中的作用、加大R＆D和人力资本投资力度、充分发挥政府的作用和重视非正式制度建设等途径来实现。     

Regionalizing National Commodity-by-Industry Accounts

Exended input–output (IO) models are increasingly prominent in regional economic analysis. Social accounting matrices and associated multiplier decompositions, IO econometric model hybrids and computable general equilibrium models are finding greater acceptance in contexts in which simple IO models once dominated. Although the extended regional models build primarily on the foundation of regional, interindustry accounting frameworks, the data from which these regional accounts are drawn are most commonly in the form of a national commodity-by-industry account. Despite this longstanding fact, the IO table adaptation literature has focused almost solely on methods of adapting national interindustry accounts to regional economies. This paper presents a method designed specifically to regionalize commodity-by-industry accounts, in the context of the US reporting system. The focus on commodity-by-industry data demands a confrontation with several important issues that otherwise might go unattended. Using a particular system and its accompanying classification scheme ensures a comprehensive and consistent regionalization method.     

优化安徽企业自主创新环境研究

营造适合企业自主创新的基础环境对提高企业自主创新能力至关重要。应从企业创新体制、创新人才建设、创新研发机制方面，优化企业自主创新内部环境；从财政政策、税收政策、金融政策、创新服务平台建设、知识产权保护方面，优化企业自主创新外部环境。