微机排版校对中易出现的差错及对策

从多方面分析了排版校对过程中容易产生的差错，并从编辑应具备的计算机素养、排版软件所具有的功能及校对技巧出发，提出了如何防止这类差错发生的具体措施．     

论数学中的公理化方法

本文介绍了公理化方法的发展历程,并就公理化方法所表现的形式及存在的优劣性进行了比 较研究。     

大枣保花保果复合剂的应用效果

分析了大枣产量低、落花落果严重的原因，介绍了大枣保花、保果复合剂的作用机理及施用方法，并阐述了该复合剂的应用效果和社会经济效益。     

Molecular cloning and expression of interleukin Ibeta (IL-1β) from red seabream (Pagrus major)

The interleukin 1β (IL-1β) cDNA was cloned from the red seabream (Pagrus major) by homology cloning strategy. A cDNA fragment was amplified by PCR using two degenerated primers, which were designed according to the conserved regions of other known IL-1β sequences, and elongated by 3' ends and 5' ends RACE PCR to get the full length coding sequence of red seabream IL-1β (RS IL-1β). The sequence contained 1252 nucleotides that included a 5' untranslated region (UTR) of 84bp, a 3' UTR of 410 bp and an open reading frame (ORF) of 759 nucleotides which could be translated into a putative peptide of 253 amino acids with molecular weight of 28.6 kD and putative isoelectric point pI of 5.29. The deduced peptide contained two potential N-glycosylation sites and an identifiable IL1 family signature, but lacked the signal peptide and the clear ICE cut site, which were common in other nonmammalian IL-1β genes. The RS IL-1β had the highest homology with piscine IL-1β according to phylogenetic tree analysis.     

脑膜瘤的CT、MRI表现与病理对照研究

目的：探讨脑膜瘤的CT、MRI表现与病理分型之间的关系．方法：收集经CT、MRI诊断和手术病理证实的脑膜瘤185例，CT和MRI检查均采用增强前后常规扫描，病理为手术巨检和切片光镜下所见．结果：典型脑膜瘤多为过渡型或纤维母细胞型脑膜瘤，密度(信号)均匀，明显均匀强化，15％～20％伴有钙化，无或轻度瘤周水肿．不典型脑膜瘤以合胞体和血管母细胞瘤型脑膜瘤为主，密度(信号)不均匀，无或不均匀强化，瘤周水肿较重．恶性脑膜瘤为混杂密度(信号)肿块，强化不均匀，形状不规则，瘤周水肿明显，伴有骨质破坏．结论：CT、MRI平扫 增强是诊断脑膜瘤的最主要方法，准确率为95％，在一定程度上可提示脑膜瘤的病理学分型，为术前选择手术方案及判定预后提供信息．     

Development of Full Automatic External Welding Machine for Annular Welds of Pipeline

To meet the demands of rapid development of pipeline constructions in China, a complete set of full automatic external welding machine for annular welds of pipeline and welding procedure have been developed thereof. The system has been applied in the “West-East Pipeline Project” and its performance is proven. With this welding machine the welding parameters can be either preset before or adjusted in real time during the welding process, which avoids the blemishes of same type domestic and international products. Thus it is best propitious to in-situ construction conditions and workers‘ technical level in China. In this article the development of mechanical and control systems of this product is introduced and typical welding procedure parameters are provided.     

关于艺术设计中基础课程设置的思考

目前,我国的设计教育基础课程的设置仍存在很大的问题.基础课程的设置,应该成为艺术设计学科建设的焦点和重点.艺术设计基础课程,应把重点放在意识的培养与技术的训练上.根据我国现有设计专业的特点,应该设置理论基础课和专业基础课两类艺术设计基础课程.     

制备介孔复合环境材料的酸洗刻蚀工艺

探索了一种制备介孔复合环境材料的方法--破坏式造孔与有机复合相结合,使最终产品可大量吸附污染水体中的各种污染物并具有一定的杀菌功能.该方法通过酸洗刻蚀,达到了去除原材料中的杂质和刻蚀孔径的目的,所制备的中间产品24h吸湿率为原材料的2倍,染料吸附量为原材料的1.6倍.     

神经激素对蝗虫配子发生的影响

激素对昆虫的配子发生有很大作用,就昆虫激素、包括保幼激素、蜕皮激素以及昆虫脑肽等 对昆虫特别是蝗虫配子影响作了介绍.     

TCP拥塞控制分析模型

介绍了研究传输控制协议 (TCP)拥塞控制问题的各种分析模型 ,指出了研究TCP拥塞控制的主要目标 .对当前国内外的研究动态给予了讨论 ,并对当前现有模型根据其流量范围和使用的分析工具进行了分类概括 .最后概要地阐述了在端到端和在网络中进行拥塞控制的相互关系