CAE技术在模具设计过程中的并行应用

介绍CAE技术在模具设计并行工程中应用的基本思路、设计流程和主要特点，并应用Moldflow软件对空气取水机门盖进行CAE分析，以说明CAE技术的并行应用过程。实践证明，CAE技术的并行应用可以提高模具设计质量、缩短模具设计时间，为设计人员提供有效的技术支持，最大限度地发挥CAE的技术优势。     

几种常用的助磨剂、黏结剂在荧光分析制样中的使用探讨

以前我公司在制备荧光分析样片时使用三乙醇胺（TEA）作助磨剂和黏结剂，从2006年4月起，我公司生产水泥所用的混合材发生了变化，原来常用的沸石暂停使用，改为以粉煤灰为主要的混合材配合一定量的石灰石。为此原来的制样方法已不再适用：样片强度低、开裂掉块，分析时严重威胁到设备的安全；减少TEA的加入量时糊磨现象十分严重。鉴于以上情况，我们决定重新进行助磨剂、黏结剂试验，对常用的TEA、硬脂酸、液体石蜡和甲基纤维素（MC）分别进行了试验。     

Electrode–Ceramic Inter-Diffusion of Ba(Ti,Zr)O3-Based Y5V MLCCs with Ni Electrodes

The Ba(Ti,Zr)O₃-based multilayer ceramic capacitors (MLCCs) with Ni electrodes, which meet the Electronic Industry Association Y5V standard (from −30° to 85°C, at a temperature capacitance coefficient between −82% and 22%), have been studied in view of the electrode-ceramic inter-diffusion by several microstructual techniques (scanning electron microscopy/transmission electron microscopy/high-resolution transmission electron microscopy (HRTEM)) with an energy-dispersive X-ray spectrometer (EDS). The EDS analysis shows that the elements' inter-diffusion took place along the metal–dielectric interface and the migration of Ni toward the dielectric layers dominated this process. The incorporation of Ni did not transform the crystal structure but introduced lattice distortions, which were characterized by HRTEM, X-ray diffraction, and EDS. The degree of Ni diffusion in the sample with the thinner dielectric layer was more severe. It was concluded from the results that the Ni diffusion is related to the formation of oxygen vacancies after the annealing process, which should be a noticeable factor in the degradation behavior and reliability of base metal electrode MLCCs. The factors influencing the inter-diffusion are also discussed.     

Synthesis, characterization of bimetallic Sn-Zn-MCM41 and its catalytic performance in the hydroxylation of phenol

A series of Sn-Zn modified-MCM41 has been synthesized by direct hydrothermal method and characterized using ICP, XRD, TG/DTA, FT-IR, HRTEM and N_2-adsorption techniques. Catalytic performances of the obtained materials were evaluated in the hydroxylation of phenol with H₂O₂. Results indicated that all the samples exhibited typical hexagonal arrangement of mesoporous structure with high surface area and the heteroatoms were probably incorporated into the framework of MCM41. Catalytic tests revealed that the bimetallic incorporated materials were effective catalysts in the hydroxylation of phenol. The conversion of phenol could be reach to 56.8% for the catalysts with Sn: Zn: Si = 2.69: 4.57: 100 (molar ratio) under the optimized reaction conditions. Moreover, the materials containing Sn and Zn exhibited higher catalytic activity than monometallic Sn and Zn modified MCM41.     

FCS-DCS两种控制系统比较

当前现场总线控制系统(FCS)是控制领域中的热点,是在集散控制系统(DCS)的基础上产生的,二者是继承和发展的关系。DCS已走过了近30年的历程,广泛应用于化工、石油、电力、水泥等工业过程,基本上满足了大、中、小控制工程的需求。传统的DCS系统由各种工作站通过     

热塑性淀粉加工过程的控制参数及塑化程度的表征方法

在介绍热塑性淀粉塑料加工原理的基础上,提出特殊机械能可以作为描述热塑性淀粉塑化过程的控制参数;并对表征热塑性淀粉塑化程度的各种方法进行了总结和评述。     

基于能量优化的LEACH路由协议改进

针对LEACH路由算法中簇头选举随机性和簇头与基站直接通信导致能量消耗过快且不平衡的特点,提出新的改进算法,以达到降低能耗目的。在改进算法中,簇头剩余能量高于网络平均能量。根据簇头节点与基站的相对位置划分不同区域,簇头节点发送数据采用多跳方式,避免簇头节点能量消耗过快,达到平衡网络能量消耗的目的。仿真表明,通过改进簇头选举条件和采用多跳路由的方式,即使在数据通信量增加的情况下,依然能够延长网络通信时间。     

净化黄磷尾气合成甲酸甲酯研究

用净化黄磷尾气为原料与甲醇液相合成甲酸甲酯 ,并对影响一氧化碳及甲醇转化率、甲酸甲酯时空收率等的因素进行了研究。研究结果表明 ,随着主催化剂浓度或反应压力的增大 ,一氧化碳转化率及甲醇转化率均提高 ;助剂的加入可以大大提高甲酸甲酯时空收率和延长催化剂的寿命。优化的反应条件为 :主催化剂 (甲醇钠 )浓度 0 .4mol L ;助催化剂吡啶浓度 1.74mol L ;温度 80℃ ;时间 160min ;压力 4MPa。在此条件下 ,黄磷尾气中一氧化碳及甲醇转化率可分别达到 95 .5 %和 43%。     

加氢催化剂的器外再生

介绍了国内外再生技术的发展状况，对比器内和器外再生技术的优缺点以及催化剂活性恢复率的差异，说明器外再生技术是催化剂再生的发展方向。     

Discourse cues to deception in the case of multiple receivers

Behavioral cues to deception are instrumental in detecting deception. As one of the primary sources of deception behavior, text has been analyzed at the level of sub-sentence or message but not the discourse of interaction. Additionally, empirical studies on cues to deception in the case of multiple receivers remain nonexistent. To fill these voids, we propose a discourse framework and six hypotheses about deception behaviors in a multi-receiver environment. The deception behaviors are operationalized by discourse features based on an analysis of real-world data. The results of statistical analysis validate the efficacy of discourse features in discriminating deceivers from truth-tellers.