含过期火药粉状工业炸药的研究

文章概要论述了一种新型民用炸药－含过期火药粉状工业炸药在配方、制造工艺等方面所进行的实验研究。结果表明，该炸药性能良好、制造技术安全可靠，值得推广。     

用过期“双迫”发射药改制射钉枪药的研究

文章分析了将过期“双迫”药改制成射钉枪药的可行性．实验表明,改制可采用球形药工艺,制品能满足射钉枪的使用要求．     

Trading Off Cache Capacity for Low-Voltage Operation

Two proposed techniques let microprocessors operate at low voltages despite high memory-cell failure rates. They identify and disable defective portions of the cache at two granularities: individual words or pairs of bits. Both techniques use the entire cache during high-voltage operation while sacrificing cache capacity during low-voltage operation to reduce the minimum voltage below 500 mV.     

Developing artificial neural networks for safety critical systems

There are many performance based techniques that aim to improve the safety of neural networks for safety critical applications. However, many of these approaches provide inadequate forms of safety assurance required for certification. As a result, neural networks are typically restricted to advisory roles in safety-related applications. Neural networks have the ability to operate in unpredictable and changing environments. It is therefore desirable to certify them for highly-dependable roles in safety critical systems. This paper outlines the safety criteria which are safety requirements for the behaviour of neural networks. If enforced, the criteria can contribute to justifying the safety of ANN functional properties. Characteristics of potential neural network models are also outlined and are based upon representing knowledge in interpretable and understandable forms. The paper also presents a safety lifecycle for artificial neural networks. This lifecycle focuses on managing behaviour represented by neural networks and contributes to providing acceptable forms of safety assurance.     

Synthesis of needle-like aragonite from limestone in the presence of magnesium chloride

Needle-like aragonite was synthesized with a reversible solution reaction from limestone without calcinations. Scan Electron Microscope (SEM) and X-ray Diffraction (XRD) were used to characterize the morphology and the crystal structure of aragonite. The synthesis of aragonite whisker involves two steps. At first GCC (Ground Calcium Carbonate) was dissolved in an aqueous solution of magnesium chloride with reflux and air flush. Then CO₂ was bubbled into the suspension at a low temperature to produce aragonite whisker. An in-house designed reactor and acid–base titration analysis were used to measure the remaining GCC content in the reaction mixture. A kinetics equation of GCC dissolution was developed, which showed a first-order kinetic feature to magnesium chloride concentration. A reaction rate constant of 0.04234 h^?1 was obtained. The dissolution rate of GCC in magnesium chloride is much higher than that in the magnesium sulfate solution. Some aragonite whiskers with a length of ca. 20 μm and an aspect ratio of 8–12 can be synthesized.     

利用废旧双基药制备工业浆状炸药的研究

以双芳－３为对象研究了废旧双基发射药制备工业浆状炸药的配方及其性能，提出了利用废旧双基药的合理途径。     

金属表面活性剂相转移制表面覆盖式纳米催化剂──影响粒子大小因素的研究

制备了具有不同组成及结构的表面覆盖式催化剂，研究了制备条件、载体物质的溶解度、灼烧升温速度及表面活性剂用量对粒子大小的影响，研究结果表明：表面活性剂对胶体粒子的保护能力因其金属元素的种类而变．制备表面覆盖式纳米粒子的特殊条件对产物粒子的大小并无不利影响，载体粒子的溶解度越大，产物粒子也越大，最佳时灼烧升温速度为2℃／min，金属表面活性剂的最佳用量是其在总的金属元素中的摩尔分数为0．25。     

一种低爆速炸药在地震勘探中的应用

针对表层含沙量高的地区地震波传播速度低的特点，研究了一种密度大、体积小、能量较高的低爆速炸药。探讨了低爆速炸药的震源机理，介绍了低爆速炸药的制造方法和性能，并在下扬子地区(表层含沙量高)进行了炸药性能试验。试验结果表明，低爆速炸药较之中、高爆速炸药及常规炸药与围岩有更好的匹配和耦合关系，因而使地震记录的信噪比、分辨率都得到了提高。     

纳米硼酸盐的摩擦学特性初探

本文对利用二氧化碳超临界干燥法制备出的纳米硼酸镧、纳米硼酸铈、纳米硼酸镍及纳米硼酸铜四各粒子,进行了常规的摩擦学性能评定,并与市售的商品ＺＤＤＰ进行了对比,表明其性能差异不大。在自选设计的特殊摩擦试验中,ＺＤＤＰ却与四种纳米硼酸盐表现出了极大的差异,证明了纳米粒子独特的摩擦学特性。     

制造低温感火药的一种工艺方法

通过实验研究,提出了一种制备低温感包覆药的新工艺。中止燃烧实验和弹道计算结果表明：利用该工艺和传统的辊筒包覆工艺所制备的包覆药,具有明显的低温感效果,且用新工艺制得的产品质量更均一,是一种值得推广的工艺方法。