基于黑板推理与分层规划的模糊工艺决策模型

基于工艺过程分层规划的原理，将复杂的加工工艺排序分层次进行求解，应用面向对象的技术构造了工艺决策过程的分层结构和支持CAPP系统决策过程的黑板推理模型、知识源模型和控制黑板控制模型。根据领域黑板装裁的零件特征信息与工艺决策信息，通过模糊综合匹配，优选出各层次子任务的工艺决策规则、数据和函数对各层子任务进行求解即得当前零件的工艺设计结果。     

面向需求的勾花网自动卷网机创新设计

针对产品创新设计时，逻辑关系抽象，确定子功能的过程较为复杂，提出基于CAI技术与TRIZ理论的产品概念创新设计方法。根据语义相近原则将收集的产品设计需求分类为几个子需求群，通过Goldfire软件检索得到子需求群的一级子功能；基于一级子功能的工作原理进行功能元定义和分解，根据功能元设计其功能载体，使用专利库和TRIZ理论完成产品机构的设计，并进行专利侵权判定。最后通过勾花网自动卷网机验证了此方法的可行性。     

CSCD中设计任务并行性的控制

提出协同设计中设计任务并行性控制的一种具体描述方法，通过设计任务时序关系的分析采用矩阵和数组实现设计任务并行性的控制。     

压铸模数字设计中的虚拟装配策略研究

虚拟装配是实际装配过程在计算机上的实现。通过实例探讨了虚拟装配方案规划问题，介绍了一种基于子装配的装配结构模块化虚拟装配策略，并运用这一策略对阀盖压铸模进行了虚拟装配；改进了现有虚拟装配方式，提出了同步虚拟装配策略并给出了实现方法。作为数字设计的组成部分，同步虚拟装配简化了虚拟装配的工作过程，为面向装配的数字设计提供了手段，对于分析、评价和完善设计对象，确保实际制造一次成功有重要意义。     

产品协同设计过程冲突预消解研究

产品设计过程冲突是不可避免的,冲突消解可以分为两个阶段,即冲突预消解和冲突检测消解.合理地进行设计任务分解与规划,将从根源上消除可能出现的过程冲突,实现冲突预消解.基于CCM_A(Cooperating Correlative Map Base on Activity)过程建模新方法,确定冲突预消解的图示表达;根据产品协同设计特点,建立相应的任务分解规划层次模型,确定了产品协同设计任务分解与规划约束规则,确定了协同设计任务的层次分解与规划方法与步骤;以设计信息协同为基础,提出设计任务间协同度的概念,并对其进行定义和量化表达;提出基于协同度的大粒度耦合任务集撕裂规划方法,并进行实例应用.     

复制式同步协同设计系统的并发控制研究

复制式同步协同设计系统采用平等站点结构，具有高并发特点，为了避免并发冲突，系统采用合理子序列选取法来调整设计者操作序列，放弃冲突操作的方法以达到并发意图一致性，进行快速冲突检测和消解。系统给出了并发冲突的具体判别方法和判断流程图，并发冲突处理具体步骤和处理流程图，设计了并发控制框架，并在此基础上实现了一个复制式的同步协同设计原型系统？     

埋地钢管牺牲阳极保护计算机辅助设计与实现

依据牺牲阳极法保护原理，参照已有的案例经验及牺牲阳极法阴极保护相关的计算公式，借助Visual BasicNET语言强大的功能，对埋地钢管的牺牲阳极保护进行计算机辅助设计.本文介绍了该辅助设计系统的设计思想，设计方案，各子模块的实现过程及对系统的特点进行了阐述.     

RGB-D图像引导的机器人操作任务模仿学习

当前机械臂抓取的模仿学习方法存在示教智能层次较低、忽略中间逻辑关系等问题，面向典型机器人定序抓取任务，提出一种RGB-D图像引导下基于HMM的机器人模仿学习方法。通过Kinect相机采集的RGB-D图像获得示教数据，基于HMM建立方块堆叠任务的离散数学模型，学习每一个子任务的环境特征状态识别和机械臂动作预测，通过完成一系列子任务最终完成堆叠任务。在仿真环境验证了方法的可行性和泛化能力，方块定序抓取任务平均环境特征识别准确率达到了98.5%。     

开放式数控系统任务管理的研究与设计

同一类型的任务在不同的运行状态和模式下有不同的处理方式和要求。以开放式数控系统为研究对象,在其体系结构的基础上,针对开放式数控系统任务管理模块需要处理的任务类型以及要求的不同,采用任务规划和任务执行两个子模块的设计方式,给出了一种开放式数控平台上构建任务管理模块的方案,并详细介绍其中的关键实现技术。目前阶段得出的结果表明该设计方式能实现对任务的有效管理,保证数控系统的高效、稳定运行。     

模具异地并行设计中的成员管理及任务组织机制

介绍了基于Internet的模具异地并行设计系统中的成员管理及任务组织分配的设计原理及方法，并结合具体开发的相关软件系统，阐述了软件实现方法。     

Effects of Post-weld Heat Treatment on Microstructure,Mechanical Properties and the Role of Weld Reinforcement in 2219 Aluminum Alloy TIG-Welded Joints

In as-welded state, each region of 2219 aluminum alloy TIG-welded joint shows diff erent microstructure and microhardness due to the diff erent welding heat cycles and the resulting evolution of second phases. After the post-weld heat treatment, both the amount and the size of the eutectic structure or θ phases decreased. Correspondingly, both the Cu content in α-Al matrix and the microhardness increased to a similar level in each region of the joint, and the tensile strength of the entire joint was greatly improved. Post-weld heat treatment played the role of solid solution strengthening and aging strengthening. After the post-weld heat treatment, the weld performance became similar to other regions, but weld reinforcements lost their reinforcing eff ect on the weld and their existence was more of an adverse eff ect. The joint without weld reinforcements after the post-weld heat treatment had the optimal tensile properties, and the specimens randomly crack in the weld zone.     

The First Phase of the SRIF Industrialized Base in ＂West Area＂ Has Been Put into Operation

After nearly two years＇ tense construction, the first phase of industrialized base of Shenyang Research Institute of Foundry （SRIF）, located at the Tiexi Casting and Forging Industrial Park in the west of Tiexi District, has now been completed and formally put into operation.     

THERMODYNAMICS STUDY ON THE DECOMPOSITION OF CHROMITE WITH KOH

Institute of Process Engineering, Chinese Academy of Sciences, China, has proposed a method for oxidative leaching of chromite with potassium hydroxide. Understanding the mechanism of chromite decomposition, especially in the potassium hydroxide fusion, is important for the optimization of the operating parameters of the oxidative leaching process. A traditional thermodynamic method is proposed and the thermal decomposition and the reaction decomposition during the oxidative leaching of chromite with KOH and oxygen is discussed, which suggests that chromite is mainly destroyed by reactions with KOH and oxygen. Meanwhile, equilibrium of the main reactions of the above process was calculated at different temperatures and oxygen partial pressures. The stable zones of productions, namely, K2CrO4 and Fe2O3, increase with the decrease of temperature, which indicates that higher temperature is not beneficial to thermodynamic reactions. In addition, a comparison of the general alkali methods is carried out, and it is concluded that the KOH leaching process is thermodynamically superior to the conventional chromate production process.     

INFLUENCE OF HEAT TREATMENT ON DAMPING BEHAVIOUR OF THE MAGNESIUM WROUGHT ALLOY AZ61

The effect of isochronal heat treatments for 1h on variation of damping, hardness and microstructural change of the magnesium wrought alloy AZ61 was investigated. Damping and hardness behaviour could be attributed to the evolution of precipitation process. The influence of precipitation on damping behaviour was explained in the framework of the dislocation string model of Granato and Lücke.     

Theoretical Analysis for the Motion and Temperature of Melt Droplets in Spray Degassing Process

The motion of melt droplets in spray degassing process was analyzed theoretically. The height of the treatment tank in spray degassing process could be determined by the results of theoretical calculation of motion of melt droplets. To know whether the melt droplets would solidify during spraying process, the balance temperature of melt droplets was also theoretically analyzed. Then proof experiments for theoretical results about temperature of melt droplets were carried. In comparison, the experimental results were nearly similar to the calculation results.     

Growth Kinetics of Single Inclusion Particle in Molten Melts

On the basis of the single-particle framework, a new theory on inclusion growth in metallurgical melts is developed to study the kinetics of inclusion growth on account of reaction and collision. The studies show that the early growth of inclusion depends on reaction growth and Brawnian motion collision, and where the former is decisive, the late growth depends on turbulence collision and Stokes＇ collision, and where the former is dominant; collision growth is very quick during the smelting process, lessened in the refining process, but nearly negligible in the continuous casting process.     

An Easy Way to Quantify the Adhesion Energy of Nanostructured Cu/X(X=Cr,Ta,Mo,Nb,Zr) Multilayer Films Adherent to Polyimide Substrates

An approach based on film buckling under simple uniaxial tensile testing was utilized in this paper to quantitatively estimate the interfacial energy of the nanostructured multilayer films(NMFs) adherent to flexible substrates. The interfacial energies of polyimide-supported NMFs are determined to be *5.0 J/m2 for Cu/Cr, *4.1 J/m2 for Cu/Ta,*2.8 J/m2 for Cu/Mo, *1.1 J/m2 for Cu/Nb, and *1.2 J/m2 for Cu/Zr NMFs. Furthermore, a linear relationship between the adhesion energy and the interfacial shear strength is clearly demonstrated for the Cu-based NMFs, which is highly indicative of the applicability and reliability of the modified models.     

High-Speed Friction Stir Welding of SiC_p/Al–Mg–Si–Cu Composite

A 17 vol% SiCp/Al–Mg–Si–Cu composite plate with a thickness of 3 mm was successfully friction stir welded(FSWed) at a very high welding speed of 2000 mm/min for the first time. Microstructural observation indicated that the coarsening of the precipitates was greatly inhibited in the heat-affected zone of the FSW joint at high welding speed, due to the significantly reduced peak temperature and duration at high temperature. Therefore, prominent enhancement of the hardness was achieved at the lowest hardness zone of the FSW joint at this high welding speed, which was similar to that of the nugget zone. Furthermore, the ultimate tensile strength of the joint was as high as 369 MPa, which was much higher than that obtained at low welding speed of 100 mm/min(298 MPa). This study provides an effective method to weld aluminum matrix composite with superior quality and high welding efficiency.     

新型的治疗阿尔茨海默氏症药物(1-二甲基磷酰基-2,2,2-三氯)-乙基-1-醇烟酸醋对体外神经细胞的作用

目的: 观察本实验室合成的一种治疗阿尔茨海默氏症(AD)的药物(1-二甲基磷酰基-2, 2, 2 -三氯)-乙基^-1-醇烟酸醋(NMF),对体外培养的皮层神经细胞活性的影响以及对海人藻酸(KA)所致的神经损伤的保护作用。方法: 采用体外培养皮层神经元的方法,解剖分离 15 d胚胎小鼠皮层神经细胞, 接种于 96孔板,48 h 后加药并培养 72 h,以 MIT 法 观察 NMF 对小鼠皮层神经细胞活性的影响;同时将接种于 24 孔板的细胞预先给予 NMF,d 3 时加或不加KA处理后,以台盼蓝染色鉴别并计数死、活细胞,可得出细胞的存活率。结果: NMF 明显促进胎鼠皮层神经元活性,其中 NMF1、0. 1、10nmol·L^-1促进神经元活性增殖率分别高达 34.7%、37.4%、36. 7%, NMF 明显促进正常胎鼠皮层神经元存活卒,与对照组比较,10nmol·L^-1 NMF 对皮层神经元的存活率分别提高 39.3%、73.5%。 NMF能显著 对抗 KA 所致的神经元损伤,与 KA 损伤组相比, NMF0.1、10、10nmol·L^-1对损伤皮层神经元的保护率分别为 77.30%、80.10%、84.15%。结论: NMF 明 显促进胎鼠皮层神经元的洁性、提高正常皮层神经元,的存活卒,并能有效地保护KA所致的神经元损伤,提示 NMF 是一种很有潜力的治疗 AD 的药物。     

A STUDY OF TEMPERATURE-DEPENDENT VALENCE BOND STRUCTURE OF TITANIUM

On the basis of energy and shape method for the determination of the valence bond (VB) structures of crystal, the valence bond structure of titanium is redetermined at room temperature and calculated in the whole temperature range of 0-1943K. The outer shell electronic distribution of Ti is e_c~(2.9907) · (s_c~(0.4980) d_c~(2.4927)) ef1.0093 in crystal. The temperature dependences of the VB structures of hcp and bcc phases are the same. The VB structures of hcp and bcc phases monotonically increase or decrease with the increase in temperature, but show discontinuous changes at the phase-transformation temperature 1155K.