粘土耐火度公式的理论根源探究

对粘土耐火度公式的理论根源和存在的问题进行了探讨，认为Ｋ２Ｏ－Ａｌ２Ｏ３－ＳｉＯ２三元相是推导此粘土耐火度公式的理论依据。虽然用它来计算粘土耐火度既简单又方便，但是由于粘土中各种氧化物杂质对其耐火度影响程度的不同，导致其计算结果与真实值之间存在一定的误差，往往呈偏高趋势。     

4—氨基—三氮唑树脂的合成与表征

本文以4－氨基－三氮唑为功能基采用三种不同的大孔树脂为骨架，合成了对金、钯、铂等贵金属离子有选择吸附性能的螫合树脂PTZ、PCTZ、PSTZ，并进行了表征．     

立达清梳联短绒问题的研究

测试分析了立达清梳联生条短绒率偏高的主要原因及影响因素，通过工艺试验，优选了Ｃ４型梳棉机给棉刺辊部分的工艺参数．     

3Cr2W8V钢热应力疲劳探讨

本文研究了热处理温度和循环温度对3Cr2W8V钢热疲劳抗力的影响,探讨了热疲劳抗力与常规力学性质之间的联系.     

论变式句在科技英语中的信息功能

以话语信息传递和语言交际功能理论为依据，通过遴选科技英语相关例证作为分析语料，从英语的科技文体视角探析了变式句在信息推进过程中的强调、平衡、衔接、话题导入、情景设定、渐次加强和焦点对比等功能，强调了谙熟这些信息功能对于提高科技英语的阅读、写作和翻译水平的重要性。     

电磁力场下初生富铁相在Al—Si熔体中的运动速度

采用物理模拟方法确定了Re=1-10的阻力系数经验公式，经理论分析建立了在电磁力场作用下Al-Si熔体中初生富铁相的运动方程，得出初生富铁相的运动速度随着电磁力（f)和初生富铁相的粒径的增加而增加，在电磁力场下，初生富铁相的运动速度与重力沉降速度比（ζ）随f增加而增加，当f=0.2MN/m2时，ζ=7-10.ζ     

High Oil-absorptive Composites Prepared from Non-woven Fiber and Sponges with 4-tert- buty1styrene-EPDM-divinylbenzene Graft Polymer

4-tert-butylstyrene-EPDM-divinylbenzene graft terpolymer (PBED) was prepared by graft cross-polymerization in toluene using BPO as an initiator. The gel-PBED and solPBED were isolated from extraction of tetrahydrofuran (THF), and then they were identified by IR spectroscopy. The maximum oil-absorptivity of gel-PBED produced from the optinum reaction conditions was 8 420% but its swelling rate was very low. The highest oil-absorptivity of photocrosslinked sol-PBED film was 5 800%. Although its oil absorbency was not as high as gel-PBED' s, swelling rate was higher than that of gelPBED and was suitable for commercial purpose. After swelling in oil, neither gel PBED nor photocrosslinked sol-PBED film having high oil-absorptivity had sufficient mechanical strength to be taken out of oil wholly. As is known, composite technique is one of the useful methods for reinforcing them. Fibers, sponges and non-woven cloths were used as reinforcers or supporters in this work. Oil-absorptivities and swelling kinetics were evaluated by method ASTM (F726 - 81 ) and an experimental equation. The mechanical properties and the morphologies of some composites were measured by tensile tester and SEM , respectively.     

Studies of Photorefractive Crystals of Double-Doped Ce,Fe:LiNbO3

In this paper, photorefractive crystals of Ce, Fe:LiNbO3 are systematically studied. The crystals have been grown by Czochralski method. The samples with different doping concentrations and oxidation/reduction treatments have been fabricated. Their photorefractive properties were experimentally investigated by using two-beam coupling. The results show that the photorefractive efficiency depends on the dopant concentration, oxidation/reduction treatment, and light wavelength. The doping mechanism is also discussed here.     

国内外知识抽取系统解析

介绍了目前最流行的知识抽取方法,分析比较了Amilcare、TEXTRUNNER、Pythor、MnM、Text2Onto、SELKAS等知识抽取系统。     

“多元智能理论”在背越式跳高教学中的实验研究

在我国,体育院校的背越式跳高教学是田径普修课的主要内容之一,对于背越式跳高的教学方法研究很多,而运用多元智能理论于背越式跳高教学的却尚未见到,为此,本文正是把多元智能理论应用到田径普修课背越式跳高教学的实践当中,通过教学实验证实：背越式跳高教学中应用＂多元智能理论＂,能够改变传统教学中的很多不足,能有效提高教学质量.