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1.
罗文渊 《特钢技术》2000,8(3):64-68
阐述我国特钢行业的发展状况及市场竞争策略,做到深化改革,科学管理,练好内功,挖掘内潜,积极开拓国内外市场,以大型名牌的特钢集团屹立世界特钢市场中。  相似文献   

2.
汪雨生 《炼钢》1989,5(3):29-33
本文就我国特钢连铸的现状及国外特钢连铸的情况,阐述了我国发展特钢连铸的意义,同时分析了我国发展特钢连铸的可能性,对我国发展特钢连铸提出了一些建设性的意见,以供发展特钢连铸的工厂参考。  相似文献   

3.
胡名洋 《钢铁》2006,41(12):7-9
随着中国钢铁工业进入由大向强转变,我国特钢行业在“十一五”期间也全面进入新一轮调整期,特钢行业发展与特钢技术提升紧密相关。论述了特钢市场、特钢行业发展及特钢技术提升的近况。  相似文献   

4.
“十一五”期间我国特钢行业的关注点是:着重特钢发展质量、着眼提升创新能力。 按照国家经济又好又快的发展思路,在我国钢铁工业由大向强转变的大势下,我国特钢行业发展呈现三个层面特点:一是国内特钢市场需求潜力大、特钢产品升值空间大,特钢市场需求向高技术含量、高附加值方向发展;二是特钢行业正在加快技术升级,产品升级,提高产业集中度;三是特钢企业努力提高技术创新能力、产品创新能力和发展质量水平,增强核心竞争力。  相似文献   

5.
《特殊钢》2008,29(6)
为适应当前国内特钢企业的技术进步,提高特钢产品质量、强化节能减排意识,实现特钢企业相互学习、相互促进、共同发展的目标。中国金属学会特钢冶炼学术委员会于2008年7月28日至31日,在西宁特钢召开了“2008年特钢冶炼学术委员会暨特钢学术交流会”。全国40余家特钢企业及相关科研院所负责人共70余位代表参加了会议。在各方面的共同努力下,本次会议取得了圆满成功,代表们对会议的组织、筹备、会议宗旨以及西宁特钢的热情接待给予了高度评价。  相似文献   

6.
11月21日上午,中国特钢企业协会八届三次会员大会在太钢隆重召开。中国钢铁工业协会、特钢企业协会领导,40余家特钢企业协会会员单位代表参加了会议。与会代表就特钢企业精诚合作、齐心协力,共同应对挑战、渡过难关达成共识。  相似文献   

7.
《铁合金》2005,36(5):15-15
9月27日,是原大连钢厂始建100周年的纪念日,也是东北特钢集团成立一周年的纪念日,东北特钢集团举行了隆重的庆祝大会。东北特钢集团董事长、党委书记赵明远透露了三年内东北特钢跻身于世界特殊钢行业前5名的目标。  相似文献   

8.
根据国内汽车以及钢铁行业的发展趋势,系统分析了汽车行业对特殊钢产品的市场需求,着重介绍了汽车用特钢特别是优质钢材所需的品种种类、钢种牌号以及发展方向.预测今后几年内汽车用特钢各品种的需求情况.分析表明,近年来,汽车用特钢的产业格局及市场需求发生了很大的改变,具有广阔的市场前景;各大钢铁企业也迎合特钢的生产改善其产品结构;高强度结构钢和非调质钢作为汽车用特钢主要的发展方向逐渐受到更多的关注.  相似文献   

9.
介绍了江苏沙钢集团淮钢特钢有限公司转炉特钢大棒材生产线的产品方案、生产工艺特点及技术装备水平,近几年淮钢大棒材生产线生产优特钢的工艺实践。  相似文献   

10.
特钢蓄热式加热炉的设计与应用   总被引:2,自引:0,他引:2  
针对特钢加热工艺的特殊性,介绍了蓄热式燃烧技术在特钢加热炉上的设计与应用。  相似文献   

11.
12.
Two studies investigated the role of expressive vocal behavior (specifically, speech rate and loudness) in fear and anxiety and in sadness and depression. In the 1st study, participants spoke about personally experienced fear and anxiety-arousing and neutral events using 3 different voice styles: fast and loud, normal, and slow and soft. In the 2nd study, participants spoke about personally experienced sad or depressing and neutral events using the same 3 voice styles. In both studies, the participants' highest levels of subjective affective and cardiovascular (CV) arousal occurred when they spoke about the emotional events in a mood-congruent voice style: fast and loud in the case of fear and anxiety, and slow and soft in the case of sadness or depression. Mood-incongruent voice styles canceled the heightened levels of CV arousal normally associated with these negative emotions. The voice-style manipulation had no significant effect on the participants' levels of CV arousal during the neutral discussions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

13.
Despite the use of multimodal therapy, higher-grade glioma is still uniformly fatal in the adult population. There is a considerable difference between the length of survival in each given patient, even within the same tumor type and malignancy grade group, suggesting that there are factors that might differentially influence outcome. To identify such factors, 107 patients with anaplastic or malignant glioma were retrospectively investigated. Clinical parameters and paraclinical data on the p53, mdm2, and EGFR genes at the DNA or protein level were evaluated by univariate analysis and Cox proportional hazards regression modeling. Kaplan-Meier survival estimation demonstrated that immunohistochemical positivity for mdm2 protein in patients with anaplastic astrocytoma or with glioblastoma multiforme was associated with a shorter survival time (p = 0.02). P53 gene mutations and immunopositivity for the epidermal growth factor receptor (EGFR) protein were not significantly related to poor prognosis. The Cox proportional hazards model revealed immunohistochemical positivity for p53, mdm2, or for both of them, the presence of postoperative irradiation, and the extent of surgical resection of tumor to be variables significantly associated with prolonged survival. EGFR overexpression, age over 60 years, and Karnofsky performance score below 40 points did not significantly shorten survival time. In conclusion, the present study identified immunohistochemically detected mdm2-protein overexpression as a statistically significant negative prognostic parameter in patients bearing anaplastic or malignant glioma. Association analysis of variables revealed a possible correlation between mdm2 and p53, which is also consistent with the biological interaction mode of both proteins in vivo.  相似文献   

14.
BACKGROUND: As aging research increasingly reflects an effort to dissociate true time-driven changes from those that can be improved, sexuality in later life remains largely unexplored. Several problems are evident. There is a lack of normative data, a lack of a conceptual framework relating to the biology, psychology, and sociology of sex, and an attitudinal resistance that obscures the entire topic. METHODS: We conducted a three-part instructional series on major topics involved with sexuality and aging. We surveyed our group of attendees (n 158, average age 68 for males, 65 for females) before and after the series. RESULTS: A remarkably robust sex life was evidenced by both the men and the women, even until advanced old age. Yet, a substantially decreased involvement was reported from 10 years earlier. Despite current activities, people of both sexes wished they were participating even more than they currently were. Impotency was identified as the major negative feature for the men; relationship problems were for the women. A questionnaire 6 months after the series reported improved sexual attitudes, but no change in sexual activities from the earlier survey. CONCLUSION: Sexuality is a major quality-of-life issue which persists into old age. Our study showed that the usual sexual practices reported by our group were not considered by them to be ideal. The intervention of this instructional series provided improved sexual attitudes but not performance. Additional studies are encouraged.  相似文献   

15.
Spondylolysis and spondylolisthesis occur predominantly in the lower lumbar spine. Besides congenital defects such as predisposition of spondylolysis the correlation between competitive sports activities and an increased incidence of spondylolysis is proved. In early stages, complete healing can be achieved by conservative treatment (abstinence from sports activities for 3 months, orthesis). Persistence of pain, neurologic symptoms and progression of vertebral slipping are indications for operative treatment (reconstruction of the isthmus, dorso-ventral spondylodesis). The exercise tolerance depends on the extent of instability, progression of vertebral slipping and clinical symptoms. The limits of exercise tolerance vary among the individual athletes and require the decision of the physician. Backstroke swimming, abdominal and back muscle strengthening exercises, and types of sport involving smooth movements are advisable. Sports education in school is possible without restriction in patients with stable spondylolysis and in those with spondylolisthesis without unfavourable concomitant factors.  相似文献   

16.
OBJECTIVE: To test the validity of Benjamin Franklin's maxim "early to bed and early to rise makes a man healthy, wealthy, and wise." DESIGN: Cross sectional analysis of sleeping patterns in a nationally representative group of elderly people, and longitudinal investigation of mortality. SETTING: Eight areas in Britain (five in England, two in Scotland, and one in Wales). SUBJECTS: 1229 men and women aged 65 and over who in 1973-4 had taken part in a survey funded by the Department of Health and Social Security and for whom data on sleeping patterns, health, socioeconomic circumstances, and cognitive function had been recorded. MAIN OUTCOME MEASURES: Self reported income, access to a car, standard of accommodation, performance on a test of cognitive function, state of health and mortality during 23 years of follow up. RESULTS: 356 people (29%) were defined as larks (to bed before 11 pm and up before 8 am) and 318 (26%) were defined as owls (to bed at or after 11 pm and up at or after 8 am). There was no indication that larks were richer than those with other sleeping patterns. On the contrary, owls had the largest mean income and were more likely to have access to a car. There was also no evidence that larks were superior to those with other sleeping patterns with regard to their cognitive performance or their state of health. Both larks and owls had a slightly reduced risk of death compared with the rest of the study sample, but this was accounted for by the fact that they spent less time in bed at night. In the study sample as a whole, longer periods of time in bed were associated with increased mortality. After adjustment for age, sex, the presence of illness, and other risk factors, people who spent 12 or more hours in bed had a relative risk of death of 1.7 (1.2 to 2.5) compared with those who were in bed for 9 hours. The lowest risk occurred in people who spent 8 hours in bed (adjusted relative risk 0.8; 0.7 to 1.0). CONCLUSION: These findings do not support Franklin's claim. A "late to bed and late to rise" lifestyle does not seem to lead to socioeconomic, cognitive, or health disadvantage, but a longer time spent in bed may be associated with increased mortality.  相似文献   

17.
Mechanical allodynia (MA) following hand injury is a well-documented clinical problem. The purpose of this pilot study was to examine the relationship between hand MA and the upper limb tension test (ULTT). The ULTT mechanically stresses the neural structures from the C5/6/7 neural foramina to the median nerve distally. This study examined 29 subjects with unilateral hand MA before and after a 2-week neural self-mobilization programme. There was a significant difference between the subjects' affected and unaffected sides when tested using the ULTT, both in reproduction of symptoms and in reduced range of motion of the ULTT. Following the self-mobilization program, there was an improvement in the range of the ULTT, and subjects reported a reduction in their symptoms. Complete recovery was not obtained in all cases. The results of this study suggest that the ULTT is a useful tool both in assessment and treatment of subjects with hand MA.  相似文献   

18.
根据深云立交桥梁的检测结果,对该桥目前的整体状况、工作状态,及其使用情况做出综合评价,对桥的病害原因进行了分析,并提出合理的加固方案。  相似文献   

19.
众所周知,国际单位制物质的量采用摩尔(mol)表示,近几年出版的给排水专业书籍,为了与国际单位制接轨,逐渐将摩尔的使用频率不断提高,被给排水技术人员广泛应用的新版给排水设计手册,将表示物质浓度的单位“当量/升”或“毫克当量/升”.改为mol/l或mmol/l,虽然编者对其基本单元定义作了说明,但在实际运用上仍会出现误解,  相似文献   

20.
劳伦斯小说《儿子与情人》一个鲜明的语言特色就是标准英语和当地方言频繁的语码转换。莫瑞尔用方言来对抗妻子,而妻子坚持用标准英语,偶尔也用方言来讽刺、挖苦丈夫。语码转换反映了劳伦斯男女二元对立的哲学思想。  相似文献   

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