Operation with 1 MA plasma current in EAST

Discharge with a plasma current of 1 MA at a line-averaged density of 1.8×1019m-3 was realized in EAST, a fully superconducting tokamak. The key issues to achieve the discharge with 1 MA plasma current include both early shaping and LHCD assistance during start-up phase to extend the voltage margin of PF coils for easier plasma control, an optimization of the control methodology for PF coils to avoid over-current fault and a very good wall condition. A better wall condition was achieved mainly by extensive Lithium coating. Both stationary H-mode and diverted plasma discharge of 100 s were also obtained.     

办公建筑自然采光优化策略研究

对现有办公建筑光环境进行现场实际测量,对测量结果进行数据分析,提出设置反射装置、整合导光系统、日光偏转系统等一系列合理的光环境改进措施,更好地为节能、低碳、环保做贡献,为办公建筑的光环境设计提供参考。     

核电站抗震支撑螺栓应力腐蚀开裂倾向研究与预防措施

初步分析了核电站抗震支撑螺栓应力腐蚀开裂的机理,并提出了核电站抗震支撑螺栓应对应力腐蚀开裂的预防措施.抗震支撑螺栓的应力腐蚀开裂主要是由于螺栓本身受力及特定的化学介质共同作用下,经过一定时间后所产生的脆断现象.通过抗震支撑螺栓应力腐蚀开裂机理的初步分析,希望为核电站进一步对抗震支撑螺栓定期的检查与管理提供有效的帮助,保证了核电站设备安全、稳定的运行.     

考虑纵向加速度的三自由度车辆单轨非线性模型的建立与分析

线性二自由度车辆单轨模型是最早和最经典的车辆模型,也是车辆系统动力学的基础。本文在此基础上提出了考虑汽车质心纵向速度、侧向速度和横摆角速度的三自由度车辆单轨非线性模型,建模时充分考虑了侧偏角和侧向力的非线性特性。通过Matlab/Simulink仿真结果,验证了三自由度模型的准确性;并通过对纵向初速度和驱动力矩的影响分析,说明了三自由度车辆单轨模型具有更高的适用性。     

金银花乳酸菌饮料加工工艺研究

[目的]研究具有营养保健功能的金银花乳酸菌饮料的加工工艺和配方,旨在为该饮料的工业化生产提供技术参考。[方法]通过正交试验确定了金银花乳酸菌饮料的最佳配方;同时选用耐酸CMC-Na、黄原胶和果胶3种稳定剂进行复配,采用正交试验,以沉淀率为指标,确定3种稳定剂的最佳添加量配比。[结果]金银花乳酸菌饮料最佳配方:酸乳35%、金银花汁15%、蔗糖5%、阿斯巴甜0.025%,此时饮料的口感及综合品质最佳;采用复合稳定剂可大大提高金银花乳酸菌饮料的稳定效果,当耐酸CMC-Na、黄原胶、果胶的添加量分别为0.1%、0.1%、0.15%时,饮料的稳定性最好。[结论]通过以上试验研究,可得到具有独特风味的高质量的金银花乳酸菌饮料。     

Creation and photoelectric properties of Ox/p-InAs heterostructures

For the first time, heterostructures represented by the contact of a thin film of indium-arsenide intrinsic oxide Ox with an InAs wafer are obtained by the surface thermal interaction of indium arsenide with the normal Earth air atmosphere. The first I?CV characteristics and spectral dependences of the photosensetivity of Ox/p-InAs heterostructures are investigated. For the first time, the rectification is revealed for these heterostructures, and the spectral dependences of the photosensivity are analyzed. A conclusion concerning the possibility of using the new technology for fabricating broadband optical Ox/p-InAs-based photodetectors is advanced.     

Paraffin treatment of garlic for long-term preservation

The optimal conditions have been developed for garlic preservation by its treatment with a mixture of food paraffin and monoglyceride in the ratio of 95:5 at 80 degrees C, followed by the storage at 0-1 degrees C, and relative humidity 65-75%. When garlic is treated with plasticized paraffin, the main hydrocarbon components of paraffin - n-alkanes C20-C31 are accumulated in its pulp. Monocyclic aromatic hydrocarbons are practically absent in food paraffin and paraffined garlic. The quantitative parameters of the paraffined garlic characterizing high technological and economic effectiveness of the method, as well as insignificant increase in the p-alkanes content (1%) in the daily ration for humans, that contains paraffined garlic, have permitted the authors to recommend this method of garlic storage for using under industrial conditions, the technological regulations should be strictly kept to.     

丙烯基类单体-壳聚糖共聚物水凝胶的辐射制备及性能研究

以壳聚糖、丙烯酰胺（AM）和二甲基二烯丙基氯化铵（DMDACC）为原料,N,N-亚甲基双丙烯酰胺（MBA）为交联剂,经^60Co γ-射线辐照,制备了丙烯基类单体一壳聚糖共聚物水凝胶,并研究了MBA的用量对丙烯基类单体一壳聚糖共聚物水凝胶吸水性能和保水性能的影响。结果表明,在吸收剂量为2kGy的条件下,MBA用量较低时,随着MBA用量的提高,水凝胶的平衡吸水率反而下降;而MBA用量较高时,水凝胶的平衡吸水率受MBA用量的影响较小;凝胶吸水率随着溶胀时间的延长而增加;水凝胶在溶胀初期的溶胀动力学可用non-Fickian扩散定律来描述：随着交联剂MBA用量的逐渐增加,水凝胶的初始失水率逐渐增大,而最大失水率逐渐下降。     

基于拓扑优化的水下航行器壳体设计

为了能够有效地降低水下航行器耐压壳体的重量,以耐压壳体的概念设计为研究内容,使用ANSYS二次开发语言,对壳体进行了基于渐进结构法的拓扑优化方案,并对各方案作以比较,最终形成了拓扑优化后的耐压壳体设计方案。优化结果表明,其结构型式十分新颖,值得深入地探讨。     

辐射硫化和增容剂对氯丁／聚丙烯酸钠遇水膨胀橡胶性能的影响

采用γ射线辐射硫化技术制备了氯丁/聚丙烯酸钠遇水膨胀橡胶,考察了在一定吸收剂量时增容剂对膨胀橡胶的力学性能、膨胀性能和质量损失率的影响,以及吸收剂量对质量损失率的影响.结果表明,增容剂有利于提高力学和膨胀性能,降低质量损失率,吸收剂量提高有利于质量损失率的降低.