浅谈暖通空调工程中制冷系统管道设计及施工技术措施

暖通空调工程中的制冷管道是将制冷压缩机、冷凝器、节流阀和蒸发器等设备及阀门、仪表等连接成一个封闭循环的制冷系统,使制冷剂不间断循环流动,起到制冷作用。     

复杂产品系统研发团队的交互记忆系统与团队效能关系研究

本文采用实证研究,针对复杂产品系统的研发团队,从团队成员所具有的心理资本出发,探索团队成员心理资本对团队成员交互记忆系统的形成及发展的影响,进而得出其对团队效能的影响。从而为复杂产品系统中研发团队的建设提供建议,进而提升团队效能。     

航材供应链管理研究

传统的航材保障中的信息共享和信息技术水平较低,供应链的思想和技术是解决这一问题的途径。航材供应链对传统的航材保障进行一定的业务重组、信息化改造,提高了信息流管理的及时性、准确性,降低了航材经费。利用数据仓库和数据挖掘技术将航材供应链管理信息系统升级为基于数据仓库的决策支持系统,可以满足当前航材预测、辅助决策的需要。     

农村合作金融组织的发展及对其草根性的规制

当前在我国农村信用社发生异化、农村合作基金会被取缔后,农民专业合作社的蓬勃发展促使农村资金互助社这种新型农村合作金融组织得到了快速的发展,但由于农村合作金融组织天然的草根性特点,使得其在拥有社员基础广、社员互信度高、管理成本低等优势的同时,不可避免地也存在着合作组织松散化、资产弱、合作凝聚力不强的问题。文章在分析国外成熟的草根性规制经验的基础上,提出了规制我国农村合作金融组织草根劣势的“正反向规制模式”,以期达到维系和激发我国农村合作金融组织强大活力的目的。     

复杂产品系统的技术创新及其风险分析

随着复杂产品系统在当今的经济社会中扮演着越来越重要的角色,其创新过程也就成为技术创新研究领域的一大热点。探讨了复杂产品系统的定义、内涵,总结了复杂产品系统的特征,概括了复杂产品系统创新的关键风险因素,并分析了复杂产品系统的技术创新过程,最后得出了进行创新风险管理的途径。     

我国引进技术消化吸收与青少年成长教育类比分析及建议

消化吸收是我国技术引进后实现良性循环的重要环节,但目前一直存在效果不佳的问题。为了充分发挥技术引进的后发优势,通过应用相似系统理论,从我国青少年成长过程期间可能遇到的问题及预防措施来类比我国技术引进消化吸收工作中存在的不足,并给出相应的建议措施。     

我国生态工业园区的建设、发展与完善——基于烟台开发区生态工业园区发展状况的调查分析

本文通过对烟台开发区生态工业园区发展现状与建设经验的调查分析,指出树立科学发展观,发展循环经济,建立促进循环经济发展的法律法规体系和科学的评价指标体系,有利于推动我国生态工业园区的发展与完善,对指导和发展我国生态工业园区有特别重要的意义。     

滨州市社会养老服务体系完善研究

滨州市人口老龄化形势非常严峻,为积极应对人口老龄化带来的压力和挑战,滨州市不断推进社会养老服务体系建设,在推行敬老院“一院两制”管理模式、发展社区村办独立型老年公寓、建立政府购买居家养老服务制度、推行“爱心时间银行”储蓄卡制度等方面取得了成功探索。为进一步推进滨州市社会养老服务体系建设,提出了鼓励社会力量兴办养老事业、加快完善养老服务机构建设、建立虚拟养老院、推行居家养老有偿服务等建议。     

An evolutionary complex systems perspective on urban health

Deliberations about how to govern complex problems of urban health and wellbeing sustainably have often been implicitly biased by ideas such as being ‘human-scale’ or ‘people-centered.’ With increasing urban populations and increasing urban system interconnectivity, many cities have transformed into city regions or clusters, and the external effects of urban growth are carried mainly by the marginalized and the environment putting urban health increasingly at risk. Here we address the question of why human societies have not been better at collectively adapting to the challenges of urbanization and global environmental change? We build a theoretical framework of multi-level selection, complex systems evolution, and governance, following which we then present ‘human-scale’ and ‘people-centered’ ideas of urban development as expressions of two types of socio-political organization with different degrees of self-organization. We found several reasons for which the maladies of current urban development emerged and the seeming inability to resolve them. First, urban systems became increasingly interconnected and evolved into ultrasocial superorganisms, displaying preference to sustain themselves as a whole rather than their subordinates. Second, the difference in scaling effects between the biological and the social network contributed to the mismatch between rapid urban growth and slow adaptation. Furthermore, institutions of decreased variety reinforce themselves and become dominant, creating a positive feedback mechanism and promoting invasive and exploitative exponential growth, but they also reduce the creativity and resilience of urban systems. We also found that both the “human-scale” and the “people-centered” approaches acknowledge the exponential growth and decreasing variety in urban systems, and advocate for correcting the mismatches. To incorporate people's needs and values for long-term, truly sustainable urban health governance, we recommend combining the self-organizing, evolutionary feature of “human-scale” and the coordinative, political feature of “people-centeredness.”     

Optimal investment with vintage capital: Equilibrium distributions

The paper concerns the study of equilibrium points, or steady states, of economic systems arising in modeling optimal investment with vintage capital, namely, systems where all key variables (capitals, investments, prices) are indexed not only by time but also by age. Capital accumulation is hence described as a partial differential equation (briefly, PDE), and equilibrium points are in fact equilibrium distributions in the variable of ages. A general method is developed to compute and study equilibrium points of a wide range of infinite dimensional, infinite horizon, optimal control problems. We apply the method to optimal investment with vintage capital, for a variety of data, deriving existence and uniqueness of equilibrium distribution, as well as analytic formulas for optimal controls and trajectories in the long run. The examples suggest that the same method can be applied to other economic problems displaying heterogeneity. This shows how effective the theoretical machinery of optimal control in infinite dimension is in computing explicitly equilibrium distributions. To this extent, the results of this work constitute a first crucial step towards a thorough understanding of the behavior of optimal paths in the long run.