八钢B高炉成功开炉实践

八钢B高炉2500m3成功开炉及快速达产为八钢后期大型高炉开炉及高炉操作提供了宝贵经验更为八钢快速发展奠定了基础。B高炉全部采用国产设备、最新工艺,通过制定及执行科学合理的开炉方案,加上开炉点火后合理的操作制度有效控制高炉冶炼进程,使高炉各项指标在较短的时间达到设计水平,为实现高炉高产、优质、低耗、长寿及环保打下了坚实基础。     

八钢B高炉成功开炉实践

八钢B高炉2500m<'3>成功开炉及快速达产为八钢后期大型高炉开炉及高炉操作提供了宝贵经验更为八钢快速发展奠定了基础.B高炉全部采用国产设备、最新工艺,通过制定及执行科学合理的开炉方案,加上开炉点火后合理的操作制度有效控制高炉冶炼进程,使高炉各项指标在较短的时间达到设计水平,为实现高炉高产、优质、低耗、长寿及环保打下...     

干法除尘高炉煤气腐蚀探讨及综合防治技术在大型高炉上的应用

针对冶金行业高炉煤气净化采用全干法除尘工艺后引起的高炉煤气管道及设备腐蚀问题,探讨了腐蚀产生的原因,分析了高炉煤气中酸性和腐蚀成分的来源及影响,并总结和比较了目前常用的防腐对策。文章进一步阐述了高炉煤气腐蚀综合防治技术在大型高炉上的应用情况,为高炉煤气腐蚀的治理和全干法布袋除尘技术在特大型高炉上的推广提供了有益参考。     

太钢1650m^3高炉操作优化实践

结合太钢1650m^2高炉实际，对原燃料管理、高炉技术及高炉操作采取了一系列措施，使高炉保持了长期稳定顺行。     

高炉炉体寿命分析

分析了目前国内外高炉寿命的情况，并从冷却设备的结构及合理冷却、炉体的耐火材料、高炉炉壳、高炉长寿操作软硬件技术研究及高炉监测技术等五个方面提出今后为延长高炉寿命而应努力的方向。     

220t／h煤粉锅炉掺烧高炉煤气技术的开发与应用

为减少高炉煤气放散,节能降耗、改善环境,就煤粉锅炉掺烧高炉煤气技术,介绍了高炉煤气及相应系统的设计、试验及锅炉掺烧高炉煤气的运行情况。     

河北冶金工业利用高炉煤气发电现状与对策

介绍了河北省高炉煤气放散及利用现状，高炉煤气发电带来的巨大经济效益及良好的社会效益，提出了推广高炉煤气发电的实施意见。     

罗得罗基高炉监控系统概述

芬兰罗得罗基公司拉海钢铁厂有两座有效容积为893立方米的高炉,1号高炉在1985年完成了改造,2号高炉在1986年进行了改造。改造后两座高炉在现代水平上有了很大的提高,特别是采用了罗得罗基高炉监控系统,同时更新了过程计算机和电气设备,增加了一定数量的测量点。本文介绍了办得罗基高炉监控系统的总体设计思想、采用罗得罗基监控系统实现高炉过程控制的目的及效果、高炉监控系统相关仪表设备及测量点、基础自动化以及高炉监控系统等。     

攀钢4号高炉炉体蚀损及修补

攀钢4号高炉已连续生产12年、高炉炉体蚀损较严重，2001年7月对高炉实施了空料线全内衬喷补。本文介绍了高炉此次高炉炉体蚀损调查及修补情况。     

鞍钢2580 m3高炉风口下沉原因分析及改进措施

对鞍钢7号高炉风口下沉原因进行了分析,制定了制止风口下沉的具体措施,如改变煤枪角度和装料制度及风口增加顶丝装置,实现了高炉送风系统正常运行,确保了高炉风口长寿及工作稳定,为高炉进一步节能降耗创造了条件。     

Benzimidazole resistance in cyathostomes in horses in the Ukraine

The efficacy of treatment with cambendazole was tested in 1-year-old horses on a farm in Dubrovka, Ukraine. Thirty-five horses were treated. Their egg output was compared on the day of treatment and 14 days later with that of 33 untreated horses. Before treatment the mean number of eggs g-1 faeces was 614 in the controls and 766 in horses that had been treated. After 14 days the mean egg output in the controls was 580 and in the treated horses 369. This means a reduction of 54.5%. Only cyathostome larvae could be cultured from faeces collected after treatment. It can be concluded that benzimidazole resistance in cyathostomes is present in the Ukraine.     

重庆高校推进产学研合作的案例分析

以重庆大学、重庆邮电大学和重庆理工大学为例,剖析重庆高校推进产学研合作的基本模式,已经取得的突出成绩,分析总结其基本经验.从完善政策法规体系、强化经济调控、建立组织机构、加强中介建设及开展国际产学研合作等方面,提出了深入推进重庆高校产学研合作的对策建议.     

Apoptosis in experimental myocardial infarction in situ and in the perfused heart in vitro

We report the appearance of apoptotic cells in experimental myocardial infarction (rabbit heart) in in situ and in vitro preparations. Apoptosis was recognized by intravital staining with Hoechst 33342 (Ho342), by nick-end labeling (TUNEL) and by DNA laddering. A steady rise in the relative number of apoptotic cardiomyocytes (apoptotic index) was noted in in situ preparations. Apoptosis was first noted 6 h after the onset of ischemia with its highest value occurring after 72 h. Apoptotic nuclei were absent in remote areas of the left and right ventricles. Apoptotic nuclei within the infarcted area showed diminished intensity of Ho342 fluorescence. Three days after ischemia, a border zone adjacent to the infarcted area consisting of apoptotic macrophages was recognized. A novel finding was the appearance of apoptotic cardiomyocytes in the isolated perfused ischemic heart. Occurring as early as 50 min after the onset of ischemia, a high apoptotic index was present adjacent to the ligature placed around the coronary artery. This observation provides the opportunity to selectively examine factors leading to apoptosis in the ischemic heart under controlled experimental conditions.     

Fractures in childhood in Khartoum

A prospective study of fractures in 231 children received at Khartoum North Teaching Hospital(KNTH) was carried out for a period of six months. The incidence of child fracture rated as one per day, then it increased from the age of 5 years onwards in boys and between 6 and 8 years in girls. Most injuries were sustained during the day time, especially between late afternoon and sunset. 82% of injured children presented to a medical facility, while 18% were taken to native healers first. Non-road traffic accidents accounted for 84% of the fractures mainly due to sports, domestic injuries and falls; whereas road traffic accidents were 16% and occurred mainly in pedestrians. Forty three percent of the fractures needed only first aid and splintage while 42% needed closed reduction. Thirty one percent of all patients were treated as inpatients. The long bones were affected in 91% of all fractures, the commonest site being the distal end of the forearm (26%), followed by supracondylar fracture of the humerus (15.6%). In the upper limb, left-sided fractures predominated. The epiphyseal injuries were 3.5% of all fractures, mainly at the distal radial epiphysis. Boys were commonly affected between 13-15 years of age. Open fractures constituted 9.8% of the series and were mainly due to traffic accidents in town dwellers, the most vulnerable bones were those of the leg and foot. Pathological fractures accounted for 2.2% and were due to bone cysts and osteogenesis imperfecta. The problem of child safety and the preventive measures need to be more stressed.     

Botulism in Poland in 1996

A model is presented in which ion translocation through the F0 part of the ATP synthase drives the rotation of the ring of c subunits (rotor) versus the a subunit (stator). The coupling ion binding sites on the rotor are accessible from the cytoplasm of a bacterial cell except for the c subunit at the interface to the stator. Here, the binding site is accessible from the periplasm through a channel formed by subunit a. In the ATP synthesis mode, a coupling ion is anticipated to pass through the stator channel into the binding site of the adjacent rotor subunit, following the electrical potential. Occupation of this site triggers, probably by electrostatic forces, the rotation of the ring. This makes the binding site accessible to the cytoplasm, where the coupling ion dissociates. Simultaneously, this rotation moves again an empty rotor subunit into the contact site with the stator, where its binding site becomes loaded and rotation continues.     

Problems in falling in love

Certain patients enter psychoanalysis because of their inability to love another person. Often they report a repetitive erotic pursuit of desired partners, without being able to experience or maintain loving feelings. Kernberg has understood such difficulties as representing effects of early narcissistic disappointments and/or of difficulties in resolving oedipal conflicts. In this paper, Lacanian concepts of the mirror phase and symbolic love are employed to develop these issues. Sexualization of problems in mirroring may be fused with oedipal conflicts in some cases. An extended vignette is presented to illustrate the technical and theoretical issues.