西安地区黄土地层含水空间研究

通过对西安东郊和长安县黄土剖面野外考察、裂隙观察、统计测量、孔隙度测定和颗粒分析，系统地研究了黄土地层含水空间，进而发现了密集风化裂隙含水空间的新类型，提出了粒间孔隙不是沉积形成的，而是土壤化的产物。揭示了黄土含水空间具有波动变化规律，这种变化是受古环境变化控制的。研究表明，冷干时期成壤作用弱，含水空间发育好；温湿时期成壤作用强，含水空间发育弱。黄土孔隙度与粉砂含量成正相关关系，与粘粒含量成负相关关系。     

贵州一些土壤中稀土元素的分布特征

本文采用仪器中子活化分析法测定贵州一些土壤中的稀土元素含量，据此研究其分布的影响。结果表明：尽管土壤及其母质类型不同，但是其稀土元素分布还大体上保护母质中的分布模式特征。在风化和成土过程中，存在特殊稀土的活化分异现象。     

硅盐电池快速充电的试验与研究

根据电池快速充电的原理，对硅盐电池进行充电试验，提出适用于该电池5段恒流快速充电和定压补充充电的充电方案，并在各种控制参量的基础上，给出了实现这种充电过程的控制方法。     

论庐山之山谷地形

庐山为一年轻之块垒孤山，其山谷上游宽平呈Ｕ字形，系由寒冻风化和流水相互交替作用所成，下游陡峭的Ｖ字形巨深峡谷则主要是新构造运动的块断上升及流水沿断裂和节理强烈下切的结果．     

新型硅酸酯阻燃剂的制备及其性能

以三溴苯氧基氯丙醇、四氯化硅为主要原料合成新型硅、氯、溴三元素协同高效阻燃剂硅酸四(三溴苯氧基氯丙基)酯.探讨了反应温度、时间对产率的影响,得到最适宜的工艺条件:四氯化硅与三溴苯氧基氯丙醇物质的量比为1∶4,120℃反应6h,产率达97.6%.FTIR、1 H NMR的表征结果表明产品与目标产物结构一致,极限氧指数的测试结果表明产品的阻燃性能优良.     

The development of silicate matrix phosphors with broad excitation band for phosphor-convered white LED

This paper briefly reviews the recent progress in alkaline earth silicate host luminescent materials with broad excitation band for phosphor-convered white LED. Among them, the Sr-rich binary phases （Sr, Ba, Ca, Mg）2SiO4：Eu^2＋ and （Sr, Ba, Ca, Mg）3SiO5：Eu^2＋ are excellent phosphors for blue LED chip white LED. They have very broad excitation bands and exhibit strong absorption of blue radiation in the range of 450-480 nm. And they exhibit green and yellow-orange emission under the InGaN blue LED chip radiation, respectively. The luminous efficiency of InGaN-based （Sr, Ba, Ca, Mg）=SiO4： Eu^2＋ and （Sr, Ba, Ca, Mg）3SiO5：Eu^2＋ is about 70-80 lm/W, about 95 %-105% that of the InGaN-based YAG ：Ce, while the correlated color temperature is between 4600--11000 K. Trinary alkaline earth silicate host luminescent materials MO（M=Sr, Ca, Ba）-Mg（Zn）O-SiO2 show strong absorption of deep blue/near-ultraviolet radiation in the range of 370-440 nm. They can convert the deep blue/near-ultraviolet radiation into blue, green, and red emissions to generate white light. The realization of high-performance white-light LEDs by this approach presents excellent chromaticity and high color rendering index, and the application disadvantages caused by the mixture of various matrixes can be avoided. Moreover, the application prospects and the trends of research and development of alkaline earth silicate phosphors are also discussed.     

Effect of Al~(3+) on Tobermorite Crystallinity

The difference betWeen the systems of CaO-Sio,-H,o and CaO - S iO, -Al(oH), -H,o, was studie d,esPecially the effect ofAl3' on the crystallinity oftobermorite was focussed. As a result, in the system ofCaO-Sio,-H,o, tobermorite formed early, howeveY, with reaction tdrie forward, tobermorite was replaced byxonotlite. So far as CaO-SiO,-Al(OH),-H,O was concemed, hydrothermal reaction was carried out under thesaJne condition as CaO-Sio,-H,o to study the morphological changes oftobermorite crystals. It was found thatAls+ accelerated the crystal growth oftobermorite to some extent and was in favor ofplaty crystals. Moreovef,with the Al3+ contCllt increasing in the staning matCrial, the morphology of tobermoritC did not change mag-niflcentiy but platy crystals became more and more eminent. As soon as the Al,O, content was over 15.6%,synthetic mineral greatly changed in strUctUre and tUmed into hibschite different from l. l nm tobermorite. Ob-viously xonotlite was not aPt to form in the presence of Al3+.     

焦炭粉冷固成型用粘结剂的研制

探讨了聚丙烯酰胺、葡萄糖、高岭土、AlCl3、腐植酸钠、水溶性苯酚—甲醛树脂和自制的水溶性树脂A (简称为树脂A)等对水玻璃改性的影响。结果表明 ,树脂A使焦炭粉冷固成型的球团的生球和干球强度明显提高。并确定了其较佳配方 :水与水玻璃的重量比为 4∶6 ,其总用量为 1 6 % (占干焦炭粉的重量百分比 ) ;树脂A用量为 0 2 4 % (占干焦炭粉的重量百分比 )。在此较佳条件下 ,所制球团的生球和干球强度 ,与用未改性水玻璃 (其中水与水玻璃的重量比为 3∶7,其总用量为 1 6 %(占干焦炭粉的重量百分比 )所制球团的生球和干球强度 ,几乎相等 ,但前者球团的耐水性以及耐热性有明显提高     

硅酸盐细菌JF88菌株磷转化作用的研究

作者分离到硅酸盐细菌ＪＦ８８菌株，经鉴定为邻单胞菌属（Ｐｌｅｓｉｏｍｏｎａｓ），经２８℃１１０ＲＰＭ培养１４４ｈ后，用 ７５２０型分光光度计比色，测得磷转化强度是磷细菌ＭＢ１的１５．７９倍，用直接计数法测得ＪＦ８８菌 株的生长超过ＭＢ１菌株。该菌株在阿须贝无氮培养基上生长良好，具有良好的应用前景。     

煤矸石硅酸盐炉渣混凝土制品生产工艺

介绍了用煤矸石硅酸盐炉渣生产混凝土制品的两种方法,针对煤矸石硅酸盐混凝土中的钢筋锈蚀问题,提出了应注意的事项。