岩石爆破的逾渗模型

本文在分析几种典型的岩石爆破损伤模型的基础上，发现岩石爆破损伤演化具有明显的逾渗效应。采用逾渗来描述岩石爆破损伤断裂这一动态过程是可行的，并提出了进一步可能的研究途径。     

PVC／NBR（HNBR）／HDPE共混体系相容性研究（Ⅲ）共混体系动态力学行为和结晶行为研究

用ＤＭＡ和ＤＳＣ研究了ＮＢＲ和氢化ＮＢＲ对ＰＶＣ／ＨＤＰＥ共混体系的增容作用。由于增容剂在相界面与ＰＶＣ和ＨＤＰＥ所产生的作用改变了界面分子的作用形式，使体系中ＰＶＣ和ＨＤＰＥ相的内耗峰内移。而ＤＳＣ的结果表明，增容剂降低了体系中结晶相ＨＤＰＥ的熔点，说明增容剂增加了ＰＶＣ／ＨＤＰＥ的相容性。     

聚碳硅烷的分子量分布与可纺性研究

阐述了聚碳烷的合成及其分子量分布，讨论了高低分子含量对聚碳硅烷熔点及可纺性的影响，而且提出了分子量分布的控制标准与方法。     

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本文结合实际资料,对内蒙古赤峰热水镇温泉天然气的地球化学特征进行了分析和研究。结果表明:上述天然气由多种成因气体组合而成。其中He属壳源放射性成因,CO_2属有机成因,CH_4属无机合成,N_2属大气成因。     

单片机仿真器EMV—51的工作原理及其使用中问题的解决方法

介绍了单片机仿真器的工作原理，提出了在实际使用中所遇到的一些问题，并给出了解决这些问题的办法。     

Study of Desorption and Adsorption During Grain Aeration

One requirement in designing and operating and operating system is to minimize the moisture change in stored grain. Moisture transfer during the aeration process is generally believed to be caused by the partial pressure difference between water in grain and water in air (P₃-P₄). A mathematical model was developed for rough rice, which predicts the partial pressure difference under various grain and ambient conditions. Observations of moisture change over 10 aeration tests confirmed the good correlation between sorption phenomena and partial pressure differences. Studies indicated that air relative humidity, air temperature, grain temperature and grain moisture are significant factors influencing the partial pressure differences and, thus, affecting     

综合应用地震属性、测井数据反演储层参数

本文研究了样点地震属性的特征提取，利用BP神经网络建立测井声波时差和地震属性的非线性映射关系。采用距离加权平均对研究区所有井的反演结果进行外推。为了提高分辨率和计算结果的准确性，详细分析、研究了适合于地震信号分解和重构的小波，以及测井声波时差和地震波阻抗与层界面的关系。最后，对反演的声波时差资料进行界面影响校正，进而计算出较符合实际情况的孔隙率参数。经已知井和新钻井验证，计算结果和实际情况相一致，效果令人满意。     

固体火箭发动机喷管用烧蚀隔热材料研究进展

介绍了固体火箭发动机喷管用烧蚀隔热材料的研究进展，喷管受热分析，指出了先进复合材料的发展趋势，提出碳／酚醛复合材料在制造低成本的发动机喷管中仍有重大使用价值。     

有机发光器件平板显示及彩色象元实现方案

有机发光器件（OLED）具有固体平板化的优点，用OLED制做平板显示器不仅重量轻和功耗低，而且能实现低成本的彩色大屏幕显示。本文从有机发光器件的原理出发，阐述了有机发光器件平板显示器的三色象元的一些实现方案和目前的发展状况，并对它们的基本结构及技术特点进行了比较。     

Cellular mechanisms for developmental toxicity of chlorpyrifos: targeting the adenylyl cyclase signaling cascade

Developmental neurotoxicity caused by chlorpyrifos exposure is generally thought to target cholinesterase but chlorpyrifos may also act on cellular intermediates, such as adenylyl cyclase, that serve global functions in the coordination of cell development. In the current study, neonatal rats were exposed to apparently subtoxic doses of chlorpyrifos (no weight loss, no mortality) either on Postnatal Days 1-4 or on Postnatal Days 11-14, and the effects on components of the adenylyl cyclase cascade were evaluated in brain regions that are enriched (forebrain) or sparse (cerebellum) in cholinergic innervation, as well as in a nonneural tissue (heart). In all three, chlorpyrifos evoked deficits in multiple components of the adenylyl cyclase cascade: expression and activity of adenylyl cyclase itself, functioning of G-proteins that link neurotransmitter and hormone receptors to cyclase activity, and expression of neurotransmitter receptors that act through this cascade. Disruption of signaling function was not restricted to transduction of cholinergic signals but rather extended to adrenergic signals as well. In most cases, the adverse effects were not evident during the immediate period of chlorpyrifos administration, but appeared after a delay of several days. These results suggest that chlorpyrifos can affect cell development by altering the activity and reactivity of the adenylyl cyclase signaling cascade, a major control point for trophic regulation of cell differentiation. The effects are not restricted to cholinergic targets, nor even to the central nervous system. Hence, disruption of cell development by chlorpyrifos is likely to be more widespread than previously thought.