基于Delphi的文本数据文件的处理

介绍了IP话费查询系统，针对系统的文本数据文件导入数据库模块和基于用户名的话费查询模块的关键技术作了详细的分析。同时着重介绍了一种采用Delphi开发软件将话单文本文件导入数据库的方法，实验结果表明此方法易于系统管理人员的操作，也使得系统具有较高的灵活性和可靠性。     

网格技术在广播电视中的应用

网格是继Internet和Web技术之后的第三个信息技术浪潮。简述了网格的定义、特点和基本体系结构 ,并且分析了网格技术在广播电视中的应用     

光电双基区晶体管(PDUBAT)的器件模型

本文在考虑了晶体管的小注入效应和大注入效应以及基区宽变效应等因素后,首次用近似和简化的数学表示式和相应的等效电路,描述了光电双基区晶体管(PDUBAT)负阻形成的机理并使负阻区和谷值区的理论计算和实验结果一致性很好.     

Peanut and Walnut Rancidity: Effects of Oxygen Concentration and Relative Humidity

Accelerated tests for oxidative rancidity of blanched peanuts, blanched dry-roasted peanuts, blanched oil-roasted peanuts and shelled Persian walnuts were performed at high and low oxygen content at controlled intermediate and low relative humidities. The results confirmed and quantified the importance of oxygen content, relative humidity and roasting process in the oxidative rancidity of peanuts and walnuts. There is a potential to extend shelf-life of roasted peanuts and walnuts by edible coatings with low oxygen permeability or nitrogen-flushing with oxygen barrier packaging. Static headspace chromatography was useful to monitor oxidative rancidity in walnuts and roasted peanuts.     

RELAXATION BEHAVIOR AND THE APPLICATION OF INTEGRAL CONSTITUTIVE EQUATIONS TO WHEAT DOUGH

The small amplitude rheological properties of doughs of different compositions were measured using a dynamic rheometer. In the first study, the effect of water, flour, and added gluten on the dynamic properties was investigated. Frequency sweep was carried out in the range of 0. 1 to 100 s⁻¹ at an applied strain of 0. 1%. Storage (G') and loss (G") moduli for each composition were recorded. The storage modulus versus frequency plots were a series of parallel curves indicating that the moisture-to-flour ratio was the most important parameter. The loss modulus versus frequency plot showed a falling-off after a frequency of 40 s⁻¹. A plot of tan δ versus frequency indicated a more elastic dough at shorter time     

生成长寿命放射性核的（n，γ）截面测量

生成长寿命放射性核的（ｎ，γ）截面测量夏宜君，龙先灌，王春浩，杨志华，罗小兵杨经福，刘漫天，彭秀峰，何福庆（四川大学原子核科学技术研究所，成都，６１００６４）卢涵林（中国原子能科学研究院，北京，１０２４１３）低放射性水平作为聚变堆发展的重要目标，对聚...     

同步辐射晶体单色器晶体热应变的模拟与实验结果的比较

报道了同步辐射装置光束线关键部件之一的晶体单色器晶体热应变的ANSYS有限元模拟结果,并与实验结果进行了比对,模拟结果在实验误差范围(约士15%)内与实验数据符合,证明了模拟结果的可靠性.     

大型建筑施工设备防碰撞预警程序的开发研究

文章结合建筑施工设备防碰撞预警的现实需要,以施工设备的定位、数据的采集及施工设备的运动预判为基础,对施工设备预警程序的开发做了一定的研究.     

Effect of tensile stress on microstructure evolution of Al-Cu-Mg-Ag alloys

The effect of tensile stress on thermal microstructure evolution of Ω phase in an AI-Cu-Mg-Ag alloy with high Cu/Mg ratio and higher Ag content was investigated by transmission electron microcopy （TEM） .The samples were aged at 200 ℃ for 1 h （T6 condition）, then thermal exposed at 250 ℃ for 100 h with and without a tensile stress （130 MPa）, respectively. The results indicate that Ω precipitates uniformly disperse in the matrix as a major precipitate after artificially aging at 200℃ for 1 h （T6 condition）. Exposed at 250℃ for 100 h without stress, Ωprecipitates dissolve dramatically. Whereas, during stress exposure they coarsen unexpectedly rather than dissolve into matrix. It can be deduced that the stress retards the redissolution of Ω phase.     

泌阳凹陷北坡油气富集规律与二次勘探潜力分析

泌阳凹陷北部斜坡带是油气大规模运移的指向地区,受鼻状构造、断层和砂体的影响,该带以复杂断鼻断块、断层-岩性和断层-不整合油气藏为主.在划分泌阳凹陷北部斜坡带油藏类型和分析其分布特征的基础上,建立了北部斜坡的成藏模式,分为3类:汇集式运聚成藏模式;沿断层运聚成藏模式;斜坡自生自储式成藏模式.总结了北部斜坡油气富集规律,即是油气富集于继承性的沉积-构造斜坡的鼻状隆起区,斜坡内带和凹陷中心则是形成低位扇岩性油气藏和断层-岩性油气藏的有利地区.根据以上分析,该区带二次油气勘探存在3大领域,有望探明一定规模的石油地质储量,对油田的增产上储有重要的意义.