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Abstract: A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end,
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文摘:研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线. |
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Abstract: A new non-contact measurement system of the ammunition energy is discussed,which can be used to measure the performance parameters of all kinds of ammunition chemical battery in non-contact means.As infra-red optical medium is applied to send si
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文摘:论述一种弹载能源非接触测量系统，适用于各型弹载化学电池性能参数的非接触测量，该系统采用红外光介质从电磁场中传递信号，克服了传统测量方法精度低和“交直流界线”及其导致的“多系数”等问题，大大提高了弹载能源性能参数非接触测量的准确度。 |
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Abstract: A new process of drop-feed gas carburizing with enhanced pressure and mass flow has been described.
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文摘:用高炉压、大剂量煤油滴注进行气体渗碳，所形成的渗碳气氛碳势可达2.0%～2.6%，工件表面无碳黑沉积。 |
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Abstract: A new process of modified treatment of diesel engine link was investigatea in this paper. It made the link get adaptable microstructure and hardness without microcrack.
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文摘:提出了一套柴油机连杆调质处理的新工艺，使连杆在没有显微裂纹的情况下得到合适的显微组织和硬度。 |
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Abstract: A new simulating method is established for the calcul ation of the hardness profile of high-carbon-concentration deep-carburization , on the basis of analyzing this process and taking into account the influence o f carbide solution and dissoluti
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文摘:在对高浓度深层渗碳的特点进行分析的基础上,考虑到碳化物的析出与溶解、温度及碳浓度对扩散行为的影响,气氛环境对相界面碳传递过程的影响,淬火烈度对渗碳层冷却效果的影响,提出了一种新的模拟高浓度深层渗碳渗层硬度分布的方法。 |
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Abstract: A new transit operation system has been raised in this paper based on using non-real time information.
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文摘:文章提出了发展基于准实时信息的公交调度优化系统的设想，并进行了相应的设计。 |
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Abstract: A new tubingless oil production unit is developed in the light of the shortcomings of the commonly-used tubingless oil production unit.
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文摘:国内常用的无油管采油装置在使用过程中易造成泵砂埋或泵下移，影响正常作业。 |
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Abstract: A new type cold frame is intruduced.The deformation of unsymmetry section steel after cooling is mainly eliminated by reversely curring it on line,ensuring the achievement of automation of meticulous repair.At the same time the disposing princip
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文摘:介绍了一种新型冷床，通过在线对非对称型钢进行反向弯曲，基本上消除了非对称型钢冷却后的变形，保证了精整工序自动化的实现.同时,提出了偏心轮驱动的冷床驱动轴上平衡重的配置原则.此方法可降低传动轴上所受的扭矩，减少了电动机的功率. |
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Abstract: A new type of production line for bluing has been introduced in this paper,which obtains such advantages as energy saving,water saving,freedom from pollution and automatic production process and is a green surface treating equipment as well.Ther
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文摘:本文介绍了一种新型发蓝生产线，具有节能，节水，无污染，生产过程自动化等优点，是一种绿色表面处理设备，已在国内链条行业得到了推广应用。 |
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Abstract: A new variable structure model reference adaptive control (VS-MRAC) scheme is proposed in this paper.By transforming a relative degree one system into a first-order-like differential equation,it is shown that the SPR (Strictly Positive Real)assu
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文摘:提出了一种可具有非严格正实参考模型的变结构鲁棒自适应控制方案，可去除变结构模型参考自适应控制中普遍要求参考模型为严格正实或当相对阶大于1时参考模型经补偿后为严格正实的假设.在此基础上提出的变结构控制律可保证跟踪误差在相对阶为1时于有限时间内收敛到零，而当相对阶大于1时则可使跟踪误差收敛到一个残差集内. |
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Abstract: A new-type hydraulic pusher is designed in order to improve the automation of tram operation in coal mine, which rises the reliability and efficiency of the original cage pusher.
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文摘:为了提高副井提升井口、井底车场操车自动化程度,设计了一种新型液压推车机,提高了推车机的安全性和工作效率. |
