MARSS影像获取技术中感光胶片和CCD的结合

本文介绍了在微型航空遥感系统中，用CCD摄像完成电视指令制导，用感光胶片获取高质航摄图像的成功结合。     

Prediction via Neural Networks of the Residual Hydrogen Peroxide used in Photo‐Fenton Processes for Effluent Treatment

This communication proposes the use of neural networks in the prediction of residual concentrations of hydrogen peroxide from the treatment of effluents through Advanced Oxidative Processes (AOP's), in particular, the photo‐Fenton process. To verify the efficiency of the oxidative process, the Chemical Oxygen Demand (COD) parameter, the values of which may be modified by the presence of oxidizing agents such as residual hydrogen peroxide, is frequently taken in account. The analysis of the H₂O₂ interference was performed by spectrophotometry at 450 nm wavelength, via the monitoring of the reaction of ammonia with metavanadate. The results of the hydrogen peroxide residual concentration were modeled via a feedforward neural network, with the correlation coefficients between actual and predicted values above 0.96, indicating good prediction capacity.     

高光泽耐水型喷墨打印相纸的研究

通过实验得出,以实验室自制的抗水剂进行底涂,面涂选用纳米级气相二氧化硅作颜料,能显著提高喷墨打印纸的性能,尤其能提高其光泽度和耐水性.     

彩色显像管制造中“黑点”的分析及对策

本文简要说明了在彩色显像管中“黑点”形成的原理,重点介绍了“黑点”的种类,特征以及判断的方法和对策     

体验式特色生鲜农产品营销模式——“山水食客”

体验式营销提供的不只是让顾客感受产品和服务,更是给顾客一种感觉,一种情绪上、体力上、智力上甚至精神上的体验。每个人都有圈子,既是产品的受用者,又是传播者,这就是社会化传播——口碑营销。将农产品引入到这个圈子里,利用电商这一手段来扩大市场,可以将生鲜农产品市场的雪球越滚越大。     

先进摄影系统（APS）问世

美国柯达公司与日本几家公司经历十余年共同努力，推出一种全新的摄影系统，它是影像科技探索中的划时代突破，为人们带来的是更多方便与乐趣。     

Studies on optical and electrical properties of SILAR-deposited CuO thin films

CuO thin films prepared by SILAR technique using aqueous solutions of various pH values and their characterization are presented in this report. The pH dependence on structural, morphological, optical and electrical properties of the prepared films is studied. Thickness of films is found to vary in between 0.52 and 0.82 µm. Microstructural parameters such as crystallite size, strain and dislocation density of the film have been evaluated. The crystallographic behaviour of the film has shown that all the coated thin films are in monoclinic structure with (002) preferred orientation. The size of the crystallites is found to increase with the pH values. Surface morphological behaviour of the films prepared using different pH values are analysed. Optical properties of the films were analysed from absorption and transmittance studies of CuO thin films. Band gap energy values of CuO thin films have been found to decrease from 2.12 to 1.91 eV with increasing pH values of the solution. The thin film formed at a solution pH 11 has shown least resistivity and high carrier concentration. The I-V characteristics of n-Si/p-CuO heterojunction under 200-watts halogen lamp illumination show open-circuit voltage of ~ 0.37 V and short-circuit current of ~1.02 × 10^?6 A.     

不同氧气浓度下光引发剂对UV油墨体系固化速率的影响

氧阻聚作用是影响UV油墨体系固化反应的重要因素.本实验针对氧气浓度对UV油墨体系固化速率的影响,设计制作了可以改变氧气浓度的UV固化装置,制备了一系列UV油墨样品,探讨了不同氧气浓度下光引发剂种类及其含量对体系固化速率的影响.结果表明:在测试范围内,UV油墨体系的双键转化率与氧气浓度有很大关系.在氧气浓度较低时,双键转化率较高;随着氧气浓度的增加,双键转化率呈明显下降趋势.以体系ITX/EHA为例进行研究,当光引发剂ITX含量在1％～10％之间变化时,光引发剂的含量越高,双键转化率越大,固化速率越高.     

纳米TiO2溶胶的制备及其对丝绸织物整理研究

研究了以TiCl4 为前驱体,沉淀法制备纳米TiO2溶胶,采用单因素法分析了胶解时加入硝酸量,胶解温度和时间对TiO2溶胶光催化性能的影响,得出胶解优化工艺为加入硝酸14.4mL(1.6mol/L),在70℃水浴中胶解48h.并利用X衍射对试样进行了表征,显示该TiO2:为锐钛矿型,粒径约为15nm.同时紫外光催化亚甲基兰实验结果表明,经5h紫外光照,亚甲基兰的降解率达到97.3%.此外,研究了将该溶胶应用于丝绸织物抗紫外、抗泛黄整理,结果显示,整理后丝绸的紫外透过率明显降低,抗紫外性能良好.在经紫外照射2h后,整理后的织物白度降低1.5%,比空白样的白度降低少0.6%,强力损失约为5%,比空白样的强力损失小约4%.     

Ultra‐Fast Continuous‐Flow Photo Degradation of Organic Peroxide Explosives for Their Efficient Conversion into Hydrogen Peroxide and Possible Application

Fast, quantitative, and efficient direct photo degradation of organic peroxide explosives (HMTD, MEKP, TATP) using characteristic continuous‐flow UV radiation was investigated in aqueous solutions and achieved in less than 30 s.