高架桥梁应变检测分析仪的研制

为了精确测量高架桥梁的应变量,用一种以新型金属应变片作为敏感元件,用Cygnal F020单片机作为智能测控部件,研制出桥梁应变检测分析仪.该仪器小型轻便,操作界面友好,检测精确可达0.01.既可单机使用,本机显示和打印测量结果;又可通过USB接口与笔记本电脑(PC机)配合使用,显示、打印和分析测量结果.     

A2O-MBR工艺处理校园污水的生产性试验研究

采用A20-MBR系统处理校园污水,考察该工艺对各类污染物的去除效果及其关键影响因素。研究结果表明：A。O—MBR工艺在稳定运行条件下各项出水水质优良,但由于受碳源限制,出水TP浓度不能稳定达标。水温对A20-MBR系统去除COD。和NH3一N的效果影响较小,而对TN去除效果的影响较为显著;低水温条件下维持系统污泥质量浓度在6g／L以上可获得较高的NH3-N及TN去除率;为保障处理效果和降低运行成本,低水温条件下（9~12oc）,应提高DO的质量浓度至1．0mg／L左右。     

重型工件烘干干燥设备分析与改进

进行了铸铁工件喷涂后烘干固化设备的温度曲线分析,指出了保温设备中热风循环系统中设计不合理的地方。     

A chiral mononuclear DyIII complex with field-induced single molecule magnet behavior

A chiral mononuclear Dy^III complex, formulated [Dy(PNO)₆(H₂O)₂]Cl₃ (1) (PNO = pyridine-N-oxide), has been prepared by using an achiral ligand through spontaneous resolution. Structure analyses show that complex 1 consists of a Dy^III mononuclear unit and such units interact with each other by hydrogen bonds to form helical chains along a axis. The crystals of 1 are optically active and opposite Cotton effects can be observed in the circular dichroism (CD) spectra. Magnetic studies reveal that complex 1 exhibits field-induced single molecule magnet behavior with an energy barrier of 49 K.     

The rapid selecting of precursor ions and product ions of thirty-four kinds of pesticide for content determination by GC–EI/MS/MS

Pesticide residues caused great threat to human body health, and all countries protected the health of human body by specifying its upper limit. However, pesticide residues were generally very low, similar to trace analysis and as low as millionth or less, the content determination of pesticide residues was a troublesome problem. With the application and promotion of tandem mass spectrometry, it was able to do trace analysis. GC–EI/MS/MS was a common method for the determination of pesticide residues. The multiple reaction monitoring (MRM) mode was the most common quantitative method used in GC–EI/MS/MS. It has the characteristics of high sensitivity, good reproducibility, high accuracy, strong anti-interference and high ion flux. Multiple-twin precursor ions, product ions and collision energy of thirty-four pesticides were provided for MRM. It could play an important role in developing MRM method for the quantifying of 34 kinds of pesticide. Meanwhile, the development of MRM method for the quantifying of other compounds could also refer to this paper.     

铁系复合高分子絮凝剂在废水处理中的研究

复合高分子絮凝剂是近年来人们关注的新型、高效水和废水处理药剂.本文就近年来国内外铁系复合高分子絮凝剂的研究进展进行了综述,分析了其存在的主要特点,提出了今后研究工作的建议.     

湖北远安磷矿成分分析及磷富集实验

以市售湖北特大磷矿区内远安县荷花镇品位较低的磷矿为样本,分析了该磷矿石的成分,得出该磷矿石中各主要成分的质量分数为:P<,2>O<,5> 24.04%,CaO 49.17%,Fe<,2>O<,3> 1.49%,Al<,2>O<,3> 1.95%,MgO 3.22%,SiO<,2> 7.32%.基于此数据,本文采用了稀硫...     

X-5型大孔树脂精制原花色素的动态研究

通过对X-5型大孔树脂精制原花色素的动态吸附研究,得出其漏出曲线为Q=-41.78C2＋64.14C-12.10,最佳吸附速率为床层体积/h,最佳解吸速率为2床层体积/h,并考查了X-5树脂洗脱剂的用量。     

《煤化工产品分析技术》课程教学改革尝试与思考

《煤化工产品分析技术》是高职高专类应用化工技术（煤化工方向）专业开设的一门重要的专业必修课。针对原有煤化工产品分析技术教学情况中存在的问题,从基于工作过程的角度对该课程实施教学改革,有效地提高了该门课程的教学效果。     

立体连续传质塔板板上清液层高度实验研究

对立体连续传质塔板( LLC - Tray)的板上清液层高度进行了测量.结果表明:LLC -Tray板上清液层高度随液体流量的增加而增加,随堰高的增加而增大,气速对清液层高度的影响很小.