酒钢高炉铜冷却壁使用效果及维护实践

对酒钢1号、2号和7号高炉铜冷却壁的使用效果及维护情况进行了总结。自投产以来,1号、2号高炉均未出现铜冷却壁破损现象,而7号高炉在使用2年半后就出现铜冷却壁大面积破损现象,这与7号高炉铜冷却壁设计过长、原燃料条件较差、中心加焦操作制度有关。认为在高炉运行期间,形成稳定的煤气流分布及抑制边沿气流的操作制度,对铜冷却壁的使用效果及寿命至关重要。     

天铁高炉镶砖冷却壁的破损分析及预防措施

天津铁厂5座高炉炉腹、炉腰都采用了镶砖冷却壁,其中1、2、4号高炉冷却壁的破损较为严重。通过对冷却壁破损原因的分析,提出了若干预防破损的措施,如改进冷却壁材质和结构、改进安装方法、改善高炉操作与维护等。     

水钢1号高炉局部冷却壁破损后的操作实践

对水钢1号高炉第三代炉龄中期局部冷却壁破损后的操作实践进行了总结。1号高炉局部冷却壁破损后，通过合理的调剂及操作获得较好的技术经济指标。     

首钢3号高炉炉体冷却制度的初步研究

介绍了首钢3号高炉炉体冷却制度的现状及冷却壁破损情况,并从炉体传热的理论出发,分析了冷却壁破损的原因及高炉操作对炉体冷却制度的影响,提出了炉体冷却制度的优化建议。     

延长高炉冷却壁寿命的措施

介绍了高炉冷却壁破损的几种情况，并探讨了延长冷却壁寿命的措施，指出改善冷却水水质，选择好的冷却壁材质，改进结构设计，完善高炉操作是行之有效的方法。     

冷却壁破损与水管结垢研究

高炉冷却壁进入晚期工作临界点后有一个快速破损期，为水管结后热阻增大所致，文中讨论了水管水垢瘤的生成机理和结垢对高炉操作的影响，以及冷却壁宏观破损过程的成因。     

广钢4号高炉冷却壁破损原因及维护措施

对广钢4号高炉冷却壁的破损状况及主要原因进行分析,采取在冷却壁上安装微型冷却器、加强高炉操作水平和水质管理的措施后,冷却壁得到了有效的维护.     

提高冷却壁使用寿命——兼论改进武钢1～4号高炉冷却壁

根据以往冷却壁存在的锒砖脱落，本体开裂，水管断裂漏水，固定螺栓拉断等问题，借助冷却壁破损调查经验，分析其破损原因，提出延长高炉冷却壁使用寿命的途径，探讨了冷却壁材质，结构，制造工艺，冷却强度和操作维护等方面的改进技术。     

韶钢1号高炉延长冷却壁寿命的措施

针对韶钢1号高炉冷却壁破损原因,采取了调整风口、加大冷却强度、优化上下部操作制度和稳定热制度等措施,稳定了渣皮和炉况,遏制住了冷却壁频繁破损的势头,冷却壁工作状态良好,炉况顺行。     

梅钢2号高炉炉腹冷却壁管根损坏的原因

从高炉冷却水、冷却壁本体、高炉操作等三个方面对梅钢2号高炉炉腹五、六段冷却壁管根破损的原因进行了分析,并制定了相应的技术措施,以消除或减少其对高炉的影响.     

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.     

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.     

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.     

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.