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Abstract: Two important factors,the loss of the catalyst components and the change of the catalyst particle diameter,which lead to the decay of the catalyst for amination of fatty alcohols,were studied.The dimension analytic method is applied successfully
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文摘:对引起脂肪醇胺化用催化剂失活的重要因素——组分流失及粒径变化进行了研究，运用因次分析方法将催化剂的重复使用次数、组分流失及粒径等因素进行了关联，并取得了成功。 |
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Abstract: Two intelligent magnetic particle inspection systems for bearingrollers and rings were introduced including their principles, constructions and technical key points, in which optical imaging, digital image processing and PLC control techniques w
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文摘:介绍一种在传统磁粉探伤基础上，应用光学成象、数字图象处理、PLC控制技术实现的轴承滚子和套圈两套智能化磁粉自动探伤系统的原理、组成、关键技术以及达到的技术水平。 |
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Abstract: Ultraviolet-curing paints have been widely used in industries.
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文摘:紫外光固化涂料应用广泛。 |
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Abstract: Under given conditions, structual evolution and metamorphic process of organic matter control generation, enrichment and preservation of coalbed methane.
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文摘:在一定条件下，构造演化和有机质热演化史，控制着煤层气的生成、富集和保存特征。 |
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Abstract: Under the base of investigation and research on natural radioactive nuclein in coal of Yili area,combining with the distributing characteristic and law of radioactive nuclein in coal of area and residents' customer of using coal in Yili area,the
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文摘:在对伊犁地区煤中天然放射性核素调查研究的基础上，结合伊犁地区煤中放射性核素分布的特点、规律以及伊犁地区居民的用煤习惯，有的放矢的提出了减量化、资源化、无害化以及全过程管理原则的防治措施，为伊犁地区的经济发展，煤炭资源的合理开发和利用，防止因煤炭的开采利用而造成的污染，建设性的提出了切实可行的方案和途径。 |
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Abstract: Under the condition of using the polydimethylsiloxane as adhesive, a new ignitio n composition and its column preparation are studied; analyses and tests have be en made to the effect of powder performance and quality,and thus the key technol og
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文摘:研究了以聚二甲基硅氧烷为粘合剂和可燃剂的新型点火药配方及其药柱的制备工艺；对影响药剂性能、质量的因素进行了分析试验，解决了成形工艺中的技术关键。 |
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Abstract: Under the laser irradiation,the characteristics of the metal ion in the deposition processes are described in the paper.
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文摘:介绍在镀液中，在激光光束作用下，金属离子沉积过程的一些特点，并对其原因进行了简单的探讨。 |
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Abstract: Under the matrix loss function, the necessary and sufficient conditions of linear admissible estimates of nonestimatible parameter functions for a general linear model are obtained.
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文摘:一般线性模型可估函数的可容许估计问题已有详细的讨论。对一般线性模型在矩阵损失下，得到了不可估函数的线性估计为可容许估计的充要条件。 |
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Abstract: Unsaturated polyester with low shrinkage composied of anti-shrinking agent,thermoplastics,dispersion-stabilizer,a kind of graft copolymer made from styrene and saturated polyester,shaped like a comb for its molecular structure and UPR in certain
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文摘:研究了当用热塑性树脂作为不饱和聚酯树脂低收缩剂时，合成了以苯乙烯为主链，聚酯为枝链的梳状接枝共聚物，作低收缩剂的分散稳定剂，配合相应组成的不饱和聚酯树脂得到了具有低收缩特性的不饱和聚酯组成物。 |
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Abstract: Upgrading supplement level with the supply chain integration as the core is the trend of food distribution industry of 21st century.
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摘要：21世纪食品流通业发展的态势是：以供应链集成为中心、以提升补货物流水平为重点。 |
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Abstract: Using NOAA/AVHRR data observed at Urumqi,Fukang,Altai,Balikun monitoring station during 1992～1994,the annual variation characterisitics was studied and the differences of grass yield and AVHRR vegetation indices were compared.The grass yield and
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文摘:采用1992～1994年牧草产量资料、NOAA/AVHRR资料分析了北疆主要天然草地牧草产量与卫星植被指数的变化特征，结果表明牧草产量和卫星植被指数都存在周年变化，用卫星植被指数可以较好地反映牧草产量的年际变化和不同类型天然草地的牧草产量差异，但对草甸草地和草原草地的监测效果比对荒漠草地监测效果好，利用实测资料建立了新疆北部主要天然草地牧草产量遥感监测模型。 |
