APPLICAT ON OF HOR ZONTAL SP RAL CENTR FUGE N COK NG PLANT WASTEWATER PROCESS NG

阐述了卧式螺旋离心机污泥脱水的流程及原理,介绍了卧式螺旋离心机在焦化废水处理中的具体应用.通过对影响卧式螺旋离心机运行效果的关键因素加药量、转速、差数等进行优化,污泥含水率由97％下降至70％,取得了良好的效果.     

纤维束滤料在给水滤池中的建模与实验研究

重力式纤维束滤池与均粒滤池的对比性平行生产试验表明,纤维束滤池处理效果理想,其滤料使用周期长、截污能力强、滤速高,生产效益显著。同时通过大量实验,对重力式纤维束滤池的除浊结果进行了公式拟合,并通过测试证明其误差0.5%。利用该数学模型可以对除浊结果进行很好的预测与分析。     

Synthesis and photovoltaic property of poly(3-octylthiophene)/titanium dioxide/ferric oxide composite

Titanium dioxide and ferric oxide were prepared by the supercritical fluid drying (SCFD) method. A conducting polymer composite, poly(3-octylthiophene)/titanium dioxide/ferric oxide (POT/TiO₂/Fe₂O₃) was first synthesized by chemical method. Transmission electron microscope (TEM) and scanning electron microscope (SEM) depicted the morphology of the samples, defining that TiO₂ and Fe₂O₃ were successfully coated by poly(3-octylthiophene) molecules. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (IR) showed the chemical interaction between poly(3-octylthiophene) and inorganic compounds in the composite. Cyclic voltammetry (CV) curves showed that the forbidden band gap of the POT/TiO₂/Fe₂O₃ composite is 0.691 eV, realizing the complementary advantages of n and p semiconductor. UV–vis spectra (UV) and fluorescence spectra (PL) showed that its optical performance is far superior to poly(3-octyl thiophene), titanium dioxide and ferric oxide separately. Solar cell was sensitized by POT/TiO₂/Fe₂O₃. A solar-to-electric energy conversion efficiency of 0.499% was attained with the system.     

Vibrational spectra of functionalized fullerenes containing amide

The set of three new hydrogen bonding functionalized fullerenes containing amide (PCB-t-BA, PCB-n-BA, and MPCB-t-BA) was investigated using the infrared absorption and Raman scattering spectroscopies. Additionally, the quantum chemical calculations of the equilibrium geometry and normal mode vibrations of the molecules were performed. Role of hydrogen bonds (HB) in the investigated samples was under our particular attention. Bifurcated HB was suggested.     

东莞理工学校人行通道涵承载力试验分析

介绍东莞理工学校人行通道涵静动载试验过程,借助MidasCivil专用有限元计算软件对该通道涵进行仿真分析,将试验实测值与理论计算值进行比较,据此评定该通道涵的承载性能。     

青岛市体育中心游泳跳水馆防水技术

介绍了青岛市体育中心游泳跳水馆的防水设计方案和施工工艺.从工程质量来看,所采用的美国雷帝(LATICRETE)防水系统效果优异,达到了预期的要求.     

梭形线圈制动绕线架的改进

简要介绍了一种适用于中小型高压电机定子梭形线圈绕制的制动绕线架,它在生产过程中起了减少铜扁线绝缘损伤的作用,并能提高生产效率.     

高职高专"数字电子技术"课程教学改革初探

从五个方面阐述了"数字电子技术"课程教学改革的思路,指出了当前"数字电子技术"课程教学中存在的一些问题,并提出了相应的解决方法.     

High-efficiency red electroluminescence from europium complex containing a neutral dipyrido(3,2-a:2′,3′-c)phenazine ligand in PLEDs

In order to obtain high-efficiency monochromatic red emission in polymer light-emitting devices, a tris(dibenzoylmethanato)(dipyrido(3,2-a:2′,3′-c)phenazine) europium [Eu(DBM)₃(DPPZ)] doped single-emissive-layer devices were fabricated using a blend of poly(9,9-dioctyl-fluorence) and 2-tert-butyl-phenyl-5-biphenyl-1,3,4-oxadiazole as a host matrix by solution process. Significantly improved electro-luminescent properties with sharp red emission at 611.5 nm were displayed in the Eu(DBM)₃(DPPZ)-doped devices at dopant concentrations from 1 to 8 wt.%. The highest luminance up to 1783 cd/m² at 2 wt.% dopant concentration, as well as the maximum external quantum efficiency of 2.5% and current efficiency of 3.8 cd/A were obtained at 1 wt.% dopant concentration.