微波合成阿司匹林的工艺研究

本论文采用微波方法合成阿司匹林，用无水碳酸钠作催化剂量，研究了微波在有机合成中的应用及其他加热原理。利用了交互的正交试验方法，在反应物配比、微波功率，辐射时间和催化剂用量这四个因素中寻找出最佳合成工艺条件，从而提高了阿司匹林的产率，实现了有效地利用微波技术促进有机合成反应。     

Exploration of Linked Anomalies in Sensor Data for Suspicious Behavior Detection

We present a visual analytics system to understand the operation data of a company, GAStech, from IEEE VAST Challenge 2016. The data include proximity data recording the locations and movements of employees, and heating, ventilation, and air conditioning (HVAC) data recording the environmental conditions in the building. Analyzing the data to detect the suspicious behaviors of some disgruntled employees is of special interest. Our system provides coordinated multiple views to visualize the proximity data and the HVAC data over time. Visual hints and comparisons are designed for users to identify abnormal patterns and compare them. Furthermore, the system automatically detects and correlates the anomalies in the data. We provide use cases to demonstrate the effectiveness of our system.     

涤纶切片的结晶性能及其对POY结构均匀性的影响

采用ＤＳＣ等方法研究了几种涤纶切片的等速降温结晶性能，提出了用熔融结晶峰的半高宽／峰高的比值、过冷度和结晶度来定量表征的方法，并结合纺丝过程讨论了其对ＰＯＹ成形时结构均匀性的影响。结晶性能差的切片，易得到结构均匀的ＰＯＹ。     

软土地基油罐底板变形分析

分析了造成油罐底板变形的原因、形式及其危害，结合工程实例，提出了减少油罐底板不均匀变形的措施。     

蒸发器结晶垢螺旋纽带自动清洗技术研究

概要地叙述了蒸发器结晶垢的螺旋纽带自动清洗技术的结构原理,直接利用蒸发溶液的循环流动能带动加热管内的螺旋纽带旋转清洗。根据结晶动力学原理,对碳钢管Φ25×2.5×1820内Na2SO4、KCIO3的冷却过饱和溶液的结晶盐垢进行流体动力学模拟试验研究。结果表明,能够满足一般生产蒸发器的自动清洗要求,达到长期连续生产的目的,并且设备成本费用低,具有显著的技术经济优势,可以在制糖、制盐、烧碱、化工、食品、制药等工业生产部门广泛应用。     

单组分聚脲材料在寒冷地区某大坝溢流面防护中的应用

水利水电工程泄洪建筑物表面经常遭受高速含沙水流或携带推移质的冲刷,经过一段时间的运行,往往会出现不同程度的磨损及气蚀破坏,采用性能优越的水工混凝土抗冲耐磨材料修复和防护尤为重要。本文通过单组分聚脲材料性能试验揭示了材料的特点,介绍了其在新疆某大坝溢流面防护中的应用情况,其处理技术对类似工程具有良好的借鉴意义。     

考虑纤维波动[＋φ／-φ]缠绕角管件的轴向弹性模量计算方法

本文在计算[ φ/-φ]缠绕角管件的轴向弹性模量时,通过引入纤维波动程度参数来计入纤维波动的影响,理论计算结果与层板理论计算结果相比更接近实验结果,说明本文提出的算法,可在一定程度上计入纤维波动的影响。     

Desulfurization of commercial fuels by π-complexation: Monolayer CuCl/γ-Al2O3

Monolayer CuCl/γ-Al₂O₃ sorbent was studied for desulfurization of a commercial jet fuel (364.3 ppmw S) and a commercial diesel (140 ppmw S). The sorbent was prepared by means of spontaneous monolayer dispersion methods. Deep desulfurization (sulfur levels of <1 ppmw) was accomplished with this sorbent using a fixed-bed adsorber. The CuCl/γ-Al₂O₃ sorbent was capable of removing 6.4 and 11.2 mg of sulfur per gram for jet fuel at breakthrough (at <1 ppmw S) and saturation, respectively. The same sorbent was capable of removing 0.94 and 1.8 mg of sulfur per gram for BP diesel at breakthrough and saturation, respectively. The difference in sulfur capacities for jet fuel and diesel was apparently caused by the difference in concentrations of strongly binding compounds, such as nitrogen heterocycles, heavy (polynuclear) aromatics and fuel additives. In comparison with CuCl/γ-Al₂O₃, Cu(I)Y zeolite has higher sulfur capacities but is less stable and can be easily oxidized to Cu(II)Y by fuel additives (such as oxygenates) and moisture and consequently loses π-complexation ability. However, all these cuprous π-complexation sorbents selectively adsorb thiophenic compounds over aromatics and olefins (as predicted by the high separation factors), which resulted in the observed desulfurization capability. A feasibility study is shown for efficient regeneration of CuCl/γ-Al₂O₃ using ultrasound at ambient temperature. Possible problems associated with desulfurization using π-complexation sorbents for commercial fuels are discussed.     

Sex pheromone biology and behavior of the cowpea weevilCallosobruchus maculatus (Coleoptera: Bruchidae)

Female cowpea weevils,Callosobruchus maculatus (F.), emitted a pheromone which excited males. Pheromone release began soon after emergence and continued for one week. Synchronization of pheromone release with calling behavior was demonstrated. Mating reduced pheromone release but not male response. Pheromone obtained by aeration collection was utilized for determining a quantitative dose-response relationship.Mention of a commercial product does not constitute an endorsement by the USDA.Visiting scholar on leave from Shanghai Institute of Entomology, PRC.     

输血后丙型肝炎病毒NS4区抗体的动态变化及其诊断意义

利用重组NS4抗原及合成肽5－11抗原分别检测5例输血后丙型肝炎患者的系列血清136份，并与HCV总抗体及HCVRNA检测结果比较，发现抗NS4抗体的动态变化虽然有两种模式，但在多数情况下为一种模式，即抗体阳转后很少转阴，并且其动态变化基本与总抗体相似。同时发现2例病人抗NS4抗体阳转时间早于总抗体，因此，推测HCV检测试剂中增加NS4抗原可能对提高HCV诊断试剂的灵敏度有一定意义。