Simultaneous determination of dissolved organic carbon and phosphorus in waters using flame ionization and photometric detectors

An apparatus with flame ionization and photometric detectors was assembled for the simultaneous determination of dissolved organic carbon (DOC) and phosphorus (DP) in waters. The optimum operating conditions were described. The long-term precision (relative standard deviation) is 5.8% for DOC and 5.2% for DP. The detection limits are 0.09 μg ml⁻¹ for DOC and 0.03 μg ml⁻¹ for DP. The responses for various DOC and DP compounds agreed almost with those obtained by combustion-infrared and persulfate digestion-colorimetric methods, respectively. DOC and DP in several water samples were determined by this method and other methods, and the results obtained by those methods were discussed.     

基于平板显示产业的检测专利发展现状研究

平板显示产业(FPD)是电子信息产业的支柱,属于战略性基础产业。其发展水平是一个国家的科技实力和国际竞争力的重要体现。检测环节贯穿于整个平板显示制造的全过程,其重要作用不言而喻。而检测专利的布局也是研究企业发展以及当前产业发展现状的重要因素之一。本文以平板显示产业的检测专利为突破口,全面分析顶级参与者、专利情况、研发地点以及相互依赖关系等关键要素,并得出相关结论。研究平板显示检测的专利具有重要意义。     

一次进样分析氩气中碳、硫化物和质量数丰度值与比值

建立了一次进样分析氩气中的碳、硫化物信号和质量数丰度值与比值的方法,并可获知单位氩气内不同质量数的分子、原子分布20,Ar≈3.28%;36 Ar≈0.17%;37 Ar≈0.09%;40 Ar≈62.6%;41 Ar≈33.84%;42 Ar≈0.02%。     

基于韦伯定律的平板显示动态非线性变换算法

为了解决当环境亮度较暗时平板显示器(FPD)表现低灰度图像信息不够细腻的问题,提出了基于韦伯定律的动态非线性变换算法,构建了基于韦伯定律的动态非线性变换算法模型,给出了算法的实现步骤.把该算法应用在分辨率为640*480的LED显示屏上,在亮度为30nit的实验室中设置了一组实验,用来验证该算法.实验结果表明,当环境亮...     

一种LTPS面板厂建厂设计提案构想介绍

从工艺需求、成本、工期与污染控制的角度出发,检视目前面板厂建厂的设计概念后,提出另外一种LTPS建厂设计的提案构想,以为业界参考。     

Laser‐induced full body cleavage of flat‐panel‐display glass

Abstract— Of the two types of thermal‐stress processes for glass, i.e., surface scribing and full body cleavage, the latter is not presently applied in commercial manufacturing due to the technical difficulties, notwithstanding its various advantages. These difficulties, which were pointed out by Kondratenko and were refered to as size effect, consist of a reduced processing speed in a large glass plate and the positional inaccuracy when cleaving close to edges of a glass plate. The result of the investigation aimed to solve these problems, which can pave the way to the commercial application of full body cleavage in the manufacturing of flat‐panel‐display (FPD) devices, is reported.     

彩色等离子体显示技术最新动态

介绍了彩色等离子体显示的现状,讨论了市场和应用前景以及技术发展趋势。     

气相色谱法测定植物油中的苯线磷

植物油中苯线磷用丙酮提取,经液-液分配,用火焰光度检测器（FPD）检测,根据色谱峰的保留时间定性,外标法定量。     

全球彩电厂家的新一轮战略调整及其影响

本文分析了由于以中国为首的发展中国家CRT及CRT彩电产业稳定成长,中国大陆生产的CRT彩电大规模进入欧美市场,使日本企业在当地市场的竞争中溃不成军.很多日本电视厂家认为,日本企业只有用LCD、PDP等平板电视才能夺回被中国厂家抢去的欧美彩电市场.所以NEC、三菱电机、日立等日本传统CRT企业在日本本土和海外的CRT生产基地相继关闭,并纷纷成为FPD彩电的生产或研制基地;不仅LCD、PDP屏,包括其技术和设备正在不断地移往全球发达国家和市场.日本彩电厂商的战略大转移正在对全球电视机产业产生显著的影响.