科创中国

研究面向纺织服装行业的物联网及云制造技术应用模式.阐述了物联网与云制造技术的概念及其之间的关系.以某纺织企业为例,分析了物联网技术在纺织服装产品制造过程中的应用方法,提出了基于物联网的纺织服装行业云制造技术应用模式.认为:云制造技术在纺织服装行业的应用应从简单做起,更高层次的"即插即用"云制造技术模式的应用,需要在更加完善的信息化基础之上进一步探索和研究.

为统筹城乡发展,北京农业定位为都市型现代农业.目前,北京产业要素呈现双向流动,产业互促融合已成为北京农业发展的新特征.通过探讨北京涉农产业融合的典型案例,分析促进涉农产业融合面临的问题,提出科技促进涉农产业融合的理念和对策措施.

Cyber physical systems(CPS)recently emerge as a new technology which can provide promising approaches to demand side management(DSM),an important capability in industrial power systems.Meanwhile,the manufacturing center is a typical industrial power subsystem with dozens of high energy consumption devices which have complex physical dynamics.DSM,integrated with CPS,is an effective methodology for solving energy optimization problems in manufacturing center.This paper presents a prediction-based manufacturing center self-adaptive energy optimization method for demand side management in cyber physical systems.To gain prior knowledge of DSM operating results,a sparse Bayesian learning based componential forecasting method is introduced to predict24-hour electric load levels for specific industrial areas in China.From this data,a pricing strategy is designed based on short-term load forecasting results.To minimize total energy costs while guaranteeing manufacturing center service quality,an adaptive demand side energy optimization algorithm is presented.The proposed scheme is tested in a machining center energy optimization experiment.An AMI sensing system is then used to measure the demand side energy consumption of the manufacturing center.Based on the data collected from the sensing system,the load prediction-based energy optimization scheme is implemented.By employing both the PSO and the CPSO method,the problem of DSM in the manufacturing center is solved.The results of the experiment show the self-adaptive CPSO energy optimization method enhances optimization by 5%compared with the traditional PSO optimization method.

基于SEM模型的产品创新能力影响路径分析表明,由地区经济发展情况、科技意识、发展方式转变、成果转化、信息化水平等组成的科技与产业基础对区域产品创新能力形成较高的影响,而这种影响主要通过两个途径显现,一是直接影响,即为产品创新提供坚实的物质基础和产业能力基础;二是间接影响,即由于科技与产业基础雄厚,因此能够创造更好的科研条件,更加便于形成专利等科研成果,而科研条件的提高又能够吸引更多人才,进而人才的聚集有利于产品创新能力的提升.

Three dimensional(3D)displacements,which can be translated further into 3D strain,are key parameters for design,manufacturing and quality control.Using different optical setups,phase-shift methods,and algorithms,several different 3D electronic speckle pattern interferometry(ESPI)systems for displacement and strain measurements have been achieved and commercialized.This paper provides a review of the recent developments in ESPI systems for 3D displacement and strain measurement.After an overview of the fundamentals of ESPI theory,temporal phase-shift,and spatial phase-shift techniques,3D deformation measurements by the temporal phase-shift ESPI system,which is suited well for static measurement,and by the spatial phase-shift ESPI system,which is particularly useful for dynamic measurement,are discussed.For each method,the basic theory,a brief derivation and different optical layouts are presented.The state of art application,potential and limitation of the ESPI systems are shown and demonstrated.

根据冀北士石山区永定河流域多年来水土保持综合治理的模式和经验,在介绍和总结水土保持生态修复实用技术的基础上,分析了该区域水土保持生态修复中存在的主要问题,结合区域水土保持治理情况,对永定河流域水土保持生态修复技术与研究提出建议.

注塑模设计过程中,冷却水道布局的好坏,关系到塑件的成型质量和成型周期.以某深腔塑件为例,阐述了CAE技术在注塑模冷却水道优化设计中的应用方法和意义.

基于节能减排的目的,对中央空调控制系统实施改造.首先分析了中央空调系统的运行现状,阐述了中央空调系统的构成和变频节能原理,继而采用PLC和变频控制相结合的温差法控制方案对原有系统进行改造,给出了设计方案,进行了变频器的参数设置,并进行了节能分析.最后指出了中央空调采用变频调速控制具有较好的实用价值和发展前景.