切分轧制技术的发展及应用

说明了切分轧制的技术特点,意义以及切分轧制的各种方法及其适应范围,综述了切分轧制技术的发展历史及国内外开发和推广应用切分轧制新技术的情况。     

初轧机上的切分轧制

介绍了国内外板坯在初轧机上的切分轧制技术及工艺发展状况,对攀钢在初轧机上的利用切分轧制技术及其存在的问题提出了建议。     

三线切分时影响棒材张开角的几个因素

为稳定小规格带肋钢筋的三线切分轧制 ,对涉及棒材张开角的切分孔孔型诸角度进行了分析 ,通过对轧件受力状态的讨论 ,提出了诸因素与棒材张开角之间的解析式 ,指出满足三线切分稳定轧制时的棒材张开角应为 2°～ 3°,相应的孔型切分角为 30°左右 ,孔型外侧壁倾角应在 4 5°～ 5 0°之间 ,咬入角可控制在 7°～ 8°之间等。     

浅析沙钢棒材分轧制技术

介绍了我国棒材切分轧制技术的应用及发展状况,并重点分析了江苏沙钢集团棒材切轧制的成功实践和未来的发展方向。     

棒材三线切分轧制技术的创新与应用

棒材轧抽的三切分技术，是当今棒材轧机最为先进的技术之一，虽然近几年来不断有文献报道但能成功地应用于大生产，而且各项技术指标日趋稳定，国内外并没有几家。唐钢棒材厂根据生产实践的摸索，总结出一整 套经验，１９９８年该技术通过河北省经贸委组织的鉴定，现已有多家企业正在洽谈转让事宜。     

圆钢切分轧制的孔型设计

基于金属塑性变形基本理论,以圆钢双线切分为基本实体模型,结合生产实践,对切分位置、切分方式的选择和切分孔型系统的设计参数进行了分析,并建立了预切分轧件和切分轧件的面积计算模型.     

切分轧制在围盘轧制生产线中的探索及运用

对于围盘轧制生产线，通过分析设备能力，解决好具体技术细节，加强切分工艺的技术知识培训，对暴露出的问题进行相应的剖析和改进、完善，借助于连轧切分轧制、老复二重双线轧制等成熟的技术，同样也能稳定运用切分轧制生产工艺，达到增产、节能、降低成本的目的。     

建筑设计创作中的"形"与"式"

"形式"属于哲学范畴的概念,与"内容"相对.建筑的"形"是点、线、面的统一,建筑设计创作中琦"式"是规律、法则、手法.本文对这两个方面作了一些探讨,以期对建筑创作中的形式有所认识和把握.     

"Non-condensed" and "condensed" chromain in transitional cell carcinoma of the human urinary bladder

The area and content of "non-condensed" and "condensed" chromatin in smeared Feulgen-stained malignant urothelial cells were determined by means of scanning-cytophotometry. The results were compared with those from similar measurements of benign human transitional epithelial cells. There was no difference between the relative area and content of "non-condensed" and "condensed" chromatin in cancer nuclei and normal urothelial nuclei as far as nuclei of the same size and ploidy class were considered. Within the same ploidy class the relative area and content of "non-condensed" chromatin increased with increasing nuclear size. As increased nuclear size within the same ploidy class is typical for most cancer cells, cancer specimens therefore contained relatively more "non-condensed" chromatin than normal urothelium. Analogously the relative values of "condensed" chromatin decreased in cancer specimens. Only in high-polyploid cancer cells, which occurred more frequently in undifferentiated tumours, a slight decrease of the relative area and content of "non-condensed" chromatin was observed as compared with well differentiated diploid tumour cells. It was in polyploid tumours that the absolute area and content of "condensed" chromatin was increased as compared with diploid normal urothelium. This means that the changes in "non-condensed" and "condensed" chromatin were primarily dependent on nuclear size and total chromatin content and were not found to be a characteristic of cancer nuclei as compared with control nuclei of the same size and ploidy. These findings differ from the results of biochemical analyses of heterochromatin both in cells during carcinogenesis and also in cancer cells, but are in agreement with qualitative and quantitative morphological studies of smeared cancer nuclei.     

Being "Clinical"--Positively.

This column provides comments on David Lynn's letter in the May "American Psychologist" (1956). Most clinicians will agree heartily with Lynn's opinion that caution should be exercised in communicating "clinical" impressions to others. Irresponsible or "wild" interpretation is usually harmful and rarely harmless, in any setting. One gets the impression that Lynn feels that being "clinical" usually involves communication of one's inferences to others and that such inferences are predominantly negative and destructive. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Survivors" and "victims": long-term HIV positive individuals and the ethos of self-empowerment

Recent research on contemporary processes of self-construction has suggested that the concepts of "self", "health", "morality" and "responsibility" have become inextricably interconnected, to the extent that the "pursuit of health has become the pursuit of moral personhood" [R. Crawford (1994) The boundaries of the self and the unhealthy other: reflections on health, culture and AIDS, Social Science & Medicine 38(10), 1347-1365]. What happens then when a person becomes "diseased"? Are they doomed to the stagnant mire of "illness" and "immorality", to the role of undesirable "other"? What if the disease is HIV infection? Is it the case of HIV = AIDS = DEATH = "OTHER" par excellence? This paper addresses these issues by examining the constructions of "self" and "other" used by HIV positive individuals themselves. By reference to a specific group of people living with long-term HIV positive diagnoses, it demonstrates how unhealthy HIV infected "others", as perceived by "healthy" members of society, create their own conceptions of "self" and "other" which microcosmically mirror typical processes of identity construction. The content, function and potential advantages and disadvantages of these processes are highlighted.     

双线电渣炉电极“冻结”机理及“防冻”研究

对双线电渣炉自耗电极“冻结”现象做了生产观察、实验,分析了“冻结”机理,找出了主要影响因素,提出“理想状态”重熔和“准理想状态”重熔措施,彻底克服了电极“冻结”问题,经两年多生产证明措施切实可行。     

"Lingue di seripi", "serpents' tongues" and "glossopetrae". Highlights from the history of popular "cult" medicine in early modern times

In the 16th, 17th and 18th century "Glossopetrae", popularly known as "Lingue di Serpi", found on the Mediterranean island of Malta, were extensively used for medical purposes as antidotes. These fossil teeth, including specimens of the "Carcharodon Megalodon" (an extinct variant of the great white shark), were ground to powder or used as amulet pendants and "credence" and exported to pharmacies and shops in various cities of Europe. In antiquity, authors like Plinius or Solinus, excluding any religious connotations, had regarded "Glossopetrae" as objects "fallen from heaven on dark moonless nights". However, from the beginning of the 16th century the miraculous antidotic power of the specimens found at Malta was very strongly connected with the Pauline cult there. This cult owed ist origin to the excerpt of the shipwreck of the Apostle of the Gentiles on this island, as recorded in the New Testament. As in so many cases found in medieval and early modern medicine and pharmacy, the renown, collection, distribution and use of the antidote "Glossopetrae" or "Lingue di Serpi" was never limited to its real chemical and pharmaceutical properties. In the period of enlightenment and secular thinking mythic medicine as "Glossopetrae" had lost ist "magical" power. Consequently, with beginning of the late 18th century also the Maltese "Glossopetrae" featured in literature merely as exotic objects of curiosity or symbols of an age bound to medical superstition.     

保护"接地"和"接零"应用中几个应注意问题

介绍了保护“接地”和保护“接零”的适用场合、特性及注意问题,并分析了其错误原因。     

"Psychotherapy's" Autonomy.

Comments on the article by A. Astin (see record 1962-03183-001) which examined the functional autonomy of psychotherapy. The current author was left with the vague suspicion that Astin had martialed a good deal of scholarly evidence to prove a point that needs no proof. Psychotherapy is autonomous and serious students of it are giving a good deal of thought, time, and energy to a consideration of its functional properties. Certainly many of the "practitioners" are as unhappy as Astin over the uncertainties involved, but fortunately, unlike Astin they have not washed their hands of the "bothersome business" of outcome or process. The first issue that needs attention is his opening sentence. Unfortunately, here he gives no reference to indicate how long we have been about the business of attempting to formulate rigorously any test hypotheses about the therapy relationship within that situation itself and in the laboratory as well. The second and final point the current author makes is that it is unnecessary to answer Astin's article point by point. It would be more fruitful to look at the term "psychotherapy" and see in what way he may not have attended to what is perhaps the most important part of the problem he raises. That is, what does it mean to condemn "psychotherapy" when there are so many meanings attached to it, all applied by men of general good will who do intend to "provide a service to troubled people." (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Workshop "Radio-oncology and the Law"

From 25 to 27 Sept 1997, a workshop was organized at the Essen Medical School (Universit?tsklinikum Essen), at which radiooncologists and jurists from universities and courts as well as lawyers contributed their views on mutual problems. The following topics were discussed by papers and in round table meetings: "Requirements on the patient's information", "definition of therapeutic guidelines-limits of clinical research and standard treatments", "treatment documentation", "liability of the physician for treatment faults" and "technical standard and preserve of quality". The consensual guidelines to the topics "patient's information", "therapeutic guidelines" and "liability" are presented here.     

Management of "localized" oral cancer

We have outlined the clinical manifestations of "localized" malignant lesions of the intraoral cavity, their clinical behavior after intraoral excision, and their control rate employing intraoral excision as primary therapy. We must keep in mind that these small "localized" cancers are potential "killers" and the five year mortality from disease in our series was 25 per cent. This mortality may decrease with (1) more careful selection when patients are included in the "localized" lesion group and (2) earlier use of composite procedures in questionable cases.