摘要：The research on scroll profiles theory at present mainly is aiming at the single profile and its amelioration or parameter optimization,not aiming at the natural characteristic of the profiles equation of scroll profiles ***,the intrinsic differential equation bearing on arc-length and tangent direction angle was *** the inherent differential equation and general functional theory,the conversion ideas between the expression of intrinsic differential equation and the expression in Cartesian coordinate was studied,and the condition of involutes characteristic was *** detailed analysis of four typical scroll profiles was *** to the four typical scroll profiles and based on the method of Taylor series,the unified formation of general functional integration scroll profiles was established,which perfected general theory of scroll profiles *** envelope method to seek conjugation engagement profiles was *** unified general functional equation of scroll profiles represented the admissible function scrolls and the conjugation engagement characteristic of which was *** engagement condition of conjugation scroll profiles and the expression in Cartesian coordinate of conjugation scroll profiles of general functional integration scroll profiles were ***,the restriction of inherent characteristics of single scroll profiles model is broken *** modeling and machine tool path simulation can bridge the gap between design and manufacture which is essential for the design and manufacture of scroll *** this method a perfect solid model can be achieved,which leads to an optimal design in terms of quality,delivery time and *** presentation of unified formation of general functional integration scroll profiles represents foundation factor of instinct characteristics of scroll profiles,which widens the design method of scroll compressor for automobile air conditioning.

摘要：The similarity computations for fuzzy membership function pairs were carried *** number related knowledge was introduced,and conventional similarity was compared with distance based similarity *** usefulness of the proposed similarity measure was *** results show that the proposed similarity measure could be applied to ordinary fuzzy membership functions,though it was not easy to *** conventional results on the calculation of similarity for fuzzy membership pair,fuzzy membership-crisp pair and crisp-crisp pair were carried *** proposed distance based similarity measure represented rational performance with the heuristic point of ***,troublesome in fuzzy number based similarity measure for abnormal universe of discourse case was ***,the similarity measure computation for various membership function pairs was discussed with other conventional results.

摘要：由于塑性失稳导致的应力-应变测量曲线中塑性变形信息的缺失,使得微晶本构行为仍然很神秘.此外,应力-应变测量曲线在不同控制模式下的测量结果变化很大,而本构行为不应受测量方法的影响.此外,由于微观力学测试系统的非线性动力学行为尚不清楚,微晶真实本构行为的探究一直是一个挑战.本文在位移控制和负载控制下对单晶铝微柱进行了详细的实验和分析.为了解释实验结果,文章基于微观力学测试原理开发了一个聚合参数物理模型,该模型可直接将微观力学测试系统的非线性动力学与微晶的本构行为联系起来.这表明应力-应变测量曲线的某些阶段由控制算法产生,与本构行为无关.通过求解微观力学测试系统的非线性动力学,从平衡态开始的强塑性不稳定性(大应变爆发)归因于微晶的应变软化阶段.文章还进行参数研究以减少塑性失稳对测量响应的影响.本研究为开发各种本构模型和设计可靠的微观力学试验提供了重要的见解.

摘要：In order to achieve uniform mixing between spray droplets and crossflow, cold-model experiment of a hollow-cone water spray in an air crossflow is investigated via a numerical simulation. The simulation cases are designed by using the orthogonal design method. The Eulerian-Lagrangian formulation is employed for modeling the droplets-crossflow two-phase flow while the realizable k-ε turbulence model is used to describe the turbulence. A new index, mixedness quality, is proposed to assess the overall mixing of the droplets in the crossflow. The simulation results demonstrate that the counter-rotating vortex pair (CVP) imposes a more significant impact on the spatial distribution than on the size distribution of the droplets. Pairs of CVP with smaller scales are preferable for achieving a better mixing. The influencing factors are listed in the following order in terms of the degree of their impact from the greatest to the least: the Sauter diameter of the initial droplets, the mixing tube diameter, the spray angle, the velocity of the inlet crossflow, and the vertical velocity of the initial droplets. A moderate droplet diameter, a smaller tube diameter, a moderate spray angle, a greater crossflow velocity and a moderate vertical velocity of the droplet are favorable for achieving a higher mixedness quality of the jet spray in a confined crossflow.

摘要：利用纳米尺度结构单元堆积成具有丰富物理性能的一维(1D)组装体,是材料设计的研究前沿.然而,弱磁场诱导1D阵列的制备及其磁性能机制的揭示仍然具有挑战性.本文采用强度不同的组装场(0/1/3/5/30/50 mT),在二甘醇-空气界面上制备了由无序四氧化三铁纳米立方体组成的低维组装体.随着组装场从0增长到50 mT,环形组装体先变为细长多孔网状,再逐步变为细丝阵列,其中细丝阵列的合成条件为组装场≥3 mT且施加组装场时间t>14 min.通过调控组装场强度可得到自旋玻璃特性和静(动)各向异性~2(3).在弱组装场下磁偶极和无序排列易磁化轴之间相互作用导致自旋玻璃特性,进一步增大组装场将加强磁偶极作用和易磁化轴排列,导致自旋玻璃特性消失和强各向异性.本研究不仅提出了一种制备自旋玻璃和可控各向异性组装体的策略,还为理解低维组装磁相互作用提供了新思路.

摘要：Three "double-cable" conjugated polymers with thienopyrroledione-based backbone and perylene bisimide as side units were designed as electron acceptor for polymer-polymer solar cells. The polymers show broad absorption spectra and low-lying frontier energy levels due to both aromatic backbone and side units. The new double-cable polymers can be used as electron acceptor to combine with several electron donors, in which power conversion efficiencies above 3% could be achieved.

摘要：The collocations of lexical item are able to create a certain semantic atmosphere in the context,which will infect the lexical item and thus give it a certain semantic *** on the literature corpus,this paper takes the French degree adverb“très”as the object of *** description and interpretation,qualitative and quantitative analysis,the research uses linguistic analysis software as well as semantic prosody theory to analyze its semantic *** study found that“très”possesses mixed semantic prosody.

摘要：The design of exhaust hood is a typical high dimensional,expensive computational and black box ***-Point Search based Efficient Global Optimization(MSEGO)is proposed to solve this *** is used for the aerodynamic performance optimization of a low exhaust hood with non-axisymmetric outer flow *** optimization,the static pressure coefficient of the exhaust hood increases by 284.54%,and the aerodynamic performance analysis explains the reason of the ***,the analysis of variance(ANOVA)as the data mining technique is used to extract information of design space and analyze the influence of variables on the *** aerodynamic performance analysis and data mining,it indicates that non-axisymmetric outer flow guider and the width of outer hood has a significant effect on the aerodynamic ***,design lessons are derived and accumulated for the optimization of similar designs.

摘要：Scaffolds play a crucial role in tissue engineering. Biodegradable polymers with great processing flexibility are the predominant scaffolding materials. Synthetic biodegradable polymers with well-defined structure and without immunological concerns associated with naturally derived polymers are widely used in tissue engineering. The synthetic biodegradable polymers that are widely used in tissue engineering, including polyesters, polyanhydrides, polyphosphazenes, polyurethane, and poly(glycerol sebacate) are summarized in this article. New developments in conducting polymers, photoresponsive polymers, amino-acid-based polymers, enzymatically degradable polymers, and peptide-activated polymers are also discussed. In addition to chemical functionalization, the scaffold designs that mimic the nano and micro features of the extracellular matrix(ECM) are presented as well, and composite and nanocomposite scaffolds are also reviewed.

摘要：In order to fulfill the requirements of mobile computing and big data environments, we design a mobile campus portal (MCP) providing mobile information services for users in both browser/ server and client/server modes. We present the topological structure of MCP, system infra-  structure, application architecture and the data management (such as data integration, data format translation, data security control and so on) of our mobile campus portal in this paper. After online running in the past two years, our MCP has received good feedbacks from mobile users. In the future, we will focus on the research of data-mining technologies in our big data environment.