紫外分光光度法测定环境水中的硝酸盐氮

本基于硝酸盐氮在201．2nm处有强烈吸收，且干扰少，在PH=8碱条件下，建立了用紫外分光光度法直接测定水样中的硝酸盐氮的方法。硝酸盐氮在0～7．0mg／L范围内遵守比尔定律．加标回收率为99．1％～100．1％，检出限0．1000mg／L。可用于自来水，湖水中硝酸盐氮的测定，结果满意．     

长序狼尾草种子萌发生理的研究

用ＢＴＢ法测得长序狼尾草种子生活力为７２．０８％；在所测时期内盆栽试验的发芽率在７％－４３％之间：种子无休眠期或休眠期很短：种子属喜暗种子：发芽率与播种至初始萌发的日均温具有正相关性；并初步探讨了生活力与发芽率不相符合的原因。     

排球基本技术实施学导式程序教学法的研究

选定了排球基本技术这一部分作为学导式程序教学法的研究内容.通过教学实验证实了学导式程序教学法在排球基本技术教法中实施的有效性和可行性.实验研究表明:它有助于提高教学质量,有效地调动学生学习积极性,培养自学能力,发展学生智力.     

非线性振子系统对外界作用的热力学响应

将介质视为非线性振子系统，应用对刘维方程的微扰展开方法和定态微扰方法，得到了有快速电子穿过系统导致的密度矩阵的改变，为进一步计算相关热力学量提供了基础。     

新型铕β-二酮类化合物的合成及其发光性能的研究

利用乙酰吡咯、乙酰呋喃与三氟乙酸乙酯反应分别制取了两种新的β-二酮类化合物：吡咯甲酰三氟丙酮和呋喃甲酰三氟丙酮,利用红外光谱和质谱对其结构进行了表征。并与稀土金属铕配位制得了两种新的发红光的金属配合物,同时与经典的噻吩甲酰三氟丙酮铕（Eu（TTA）3）进行了荧光比较,探讨了不同配合物对荧光强度的影响。     

几乎基次亚紧空间的无限乘积

为了更好地研究次亚紧空间及其他拓扑空间的覆盖性质,在与几乎基亚紧空间结合后定义了几乎基次亚紧空间,研究了它的遗传性,并获得结果:(1)几乎基次亚紧空间的闭子空间是几乎基次亚紧的;(2)如果X=∏α∈ΛXα是︱Λ︱-仿紧空间,则X是几乎基次亚紧空间当且仅当F∈[Λ]<ω,︱Λ︱是几乎基次亚紧的。     

Silk Fibroin-modified Poly（butadiene） urethane Films and Their Effects on Fibroblast Viability

Surface-modified poly（butadiene）urethane （PBTU） films with silk fibroin （SF） were prepared by simple chemical method under the normal temperature. The physical properties and biological behaviour of the SF-modified PBTU film were evaluated. The results showed that the SF-modified PBTU films kept the tenacity and pliability very well, and could overcome rigid and brittle weaks of silk fibroin films. The morphology of SF in the PBTU film was dendritic aggregations, and the water-contact angle measurement indicated that the surface hydrophilicity of modified films was apparently enhanced. The biocompatibility of PBTU films was improved due to the change of surface components. The degree of platelet adhesion and the cell viability of rat embryo dermal fibroblasts seeded on PBTU films, SF films, and SF-modified PBTU films were measured by counting platelets before and after they contacted the films and MTT assay, respectively. The results indicated that platelet adhesion resistance and cell viability on the modified film were greatly superior to those on the PBTU film and the compound interface had good stability in the air.     

Some ferrocene derivatives of acylhydrazones

The title organometallic compounds were synthesized by the condensation of formyl and acetyl ferrocene with cyanoacetyl, propionyl, butyryl,o-furoyl,o-thiofuroyl andm-pyridinecarboxy hydrazine in anhydrous ethanol under reflux. The IR,¹H NMR, MS, and Mössbauer spectra for these compounds were recorded and are discussed.     

酒东盆地营尔凹陷古湖泊水介质研究

在我国西部相当数量的中新生界盆地中，发育半咸水－咸水的沉积，水介质条件决定了这类盆地中碳酸盐储层的形成、发育和分布．因此，对于这类湖盆古水介质的恢复，具有十分重要的现实意义．以酒东盆地营尔凹陷为例，利用稳定同位素、微量金属元素和生物标志化合物参数等方法，综合分析了中生界湖盆的古水介质条件．根据中生界地层古水介质相对盐度和岩性等特征，把古湖盆分为正常湖泊和咸化湖泊两种类型．通过各种方法的综合分析可以看出，整个营尔凹陷南、北部的中生代的沉积水介质是比较一致的，基本上为微咸水到半咸的水介质条件，其中偶夹淡水河流相沉积．以下白恶统中沟组沉积水介质盐度最大，这一层段也是碳酸盐岩最为发育的层段，是碳酸盐岩储层勘探的有利目标．