某工业厂房楼板裂缝的鉴定和加固处理

某工业厂房现浇混凝土楼面由于混凝土抗压强度偏低和负弯距钢筋下移，造成了抗弯承载力不足，出现了大量裂缝。考虑到楼面有后浇层，采取了板底碳纤维加固措施。     

建筑屋面防水设计研究

针对建筑屋面防水设计存在的问题，从设计原则、设计的内容、设计的程序及依据进行系统的研究，结合工程实例，对设计的重要性、应解决的问题进行论述，提出提高设计质量的一些对策。     

铜,铅,精矿中金,银分析取制样方法研究成果的应用

介绍了铜，铅精矿中金，银分析取制样方法研究的成果，其中金，银品质波动分类，在企业应用上，有着明显的经济效益和一定的社会效益。     

Distribution of implanted ions in seeds and roots of mung bean

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｏｎｉｒａｄｉａｔｉｏｎａｓａｎｅｗｍｕｔａｇｅｎｉｃｓｏｕｒｃｅｈａｓｂｅｅｎ，ｆｏｒｒｅｃｅｎｔｙｅａｒｓ，ａｐｐｌｉｅｄｔｏｔｈｅｍｕｔａｇｅｎｉｃｂｒｅｅｄｉｎｇｏｆｒｉｃｅ，ｃｏｔｏｎ，ｂａｒｌｅｙ，ｒａｙ，ｍａ...     

邯钢自动化技术的进步

介绍了邯钢在生产、经营及管理方面实现自动化的概况。     

关于钢铁工业短流程

介绍了与降低钢铁产品能耗有密切相关的钢铁工业短流程，具体内容包括它的含意，类别及其组成单元技术的可靠性。     

用液态下铸法生产外沸内镇钢工艺的研究

本文系统介绍了武钢第一炼钢厂利用引进的溶铝、喷射设备,成功地开发出外沸内镇钢下注工艺,几年来在提高成坯率、扩大品种和设备国产化诸方面进行了多种工作并解剖了钢锭,目前该钢种已用于镀锌、镀锡板的生产,在用于汽车部件、旋开盖和易拉罐等试验中,已取得良好效果。     

硫酸铁催化合成乙酸乙酯工艺研究

以硫酸铁为催化剂，合成乙酸乙酯，探讨影响酯化反应的各种因素，在最佳反应条件催化剂占物料总量6．5％，酸醇比为1：1．5，反应时间为30min时，乙酸的转化率可达98．1％，精酯收率达93．5％。     

Effect of tea phenolics on iron uptake from different fortificants by Caco-2 cells

The in vitro effects of tea phenolics on Fe uptake from different fortificants (FeSO₄, FeCl₃, FeEDTA) by Caco-2 cells were compared. Cell cultures were exposed to catechin, tannic acid, green or black tea solutions, added within Fe-containing solution, or used to pre-treat cell cultures before Fe-exposure. Cell ferritin formation was used as a measure of Fe uptake. Reverse phase chromatography was used to identify specific phenolics in tea solutions, and the Fe-binding catechol and galloyl groups were determined spectrophotometrically. The results showed a positive effect of catechin on Fe uptake only from dissociable Fe sources, and a marked inhibitory effect of tannic acid regardless of the Fe source. Tea phenolics exhibit similar inhibitory patterns on Fe uptake from FeCl₃ and FeEDTA solutions; however, the Fe uptake from FeSO₄ solutions was significantly less affected. These data improve the understanding of interactions by which tea phenolics affect Fe uptake at the intestinal level.     

Improvement of the film thickness by modification of the hydroxymethylbenzene SAM with tetraethoxysilane and octanediol for protection of iron from corrosion in 0.5 M NaCl

For enhancing the protective efficiency, P of a film prepared by modification of a p-hydroxymethylbenzene HOC₆H₄ (HOMB) self-assembled monolayer (SAM) adsorbed on iron by the formation of a covalent bond, an increase in the film thickness, d was attempted. The HOMB SAM was modified with tetraethoxysilane (C₂H₅O)₄Si (TES), 1,8-octanediol HO(CH₂)₈OH (C₈DO), 1,2-bis(triethoxysilyl)ethane (C₂H₅O)₃Si(CH₂)₂Si(OC₂H₅)₃ (BTESE) and alkyltriethoxysilane C_nH_2n+1Si(OC₂H₅)₃ (C_nTES, n = 8 or 18). The P value of the film was determined by polarization measurement of a covered iron electrode in an aerated 0.5 M NaCl solution after immersion in the solution for 1.5–72 h of the immersion time, t. High values of P, more than 82% were obtained for the films of HOMB SAM modified with TES, C₈DO and C_nTES and with TES, C₈DO, BTESE and C_nTES in the range of t up to 72 h. The highest value was 93.2%, for the film of HOMB SAM modified with TES, C₈DO, BTESE and C₁₈TES, of which d was 4.7 nm. The film of HOMB SAM modified with TES, C₈DO and C₈TES was characterized by contact angle measurement, X-ray photoelectron spectroscopy and FTIR reflection spectroscopy.