八钢物资采购管理信息系统的开发和应用

介绍了八钢WZMIS系统开发的必要性和开发、应用的效果。八钢WZMIS系统的开发提升了八钢物资采购的管理水平和经济效益。     

八钢成功开发Φ14mm圆钢三线切分轧制技术

2011年3月14日,八钢棒材机组成功开发Φ14mmHPB235圆钢三线切分轧制技术,使八钢成为国内首家成功开发圆钢三线切分轧制技术的钢厂。八钢于1999年成功开发了Φ12mmHPB235圆钢两线切分轧制工艺,之后经过巩固和不断地试验、改进,在Φ10mm、Φ14mm HPB235圆钢上成功应用并实现规模化生产,至今采用两线切分工艺轧制圆钢一直是八钢的独有技术。     

行业资讯

八钢风电用钢畅销新疆及甘肃北部地区八钢开发的风电用钢已基本覆盖新疆及甘肃北部地区,产品深受用户欢迎。风电用钢主要用于制造风力发电设备部件——塔筒的中厚板产品。     

八钢公司主要铁矿山成矿模式探讨

八钢公司2005年以来通过开展资源工作,在新疆天山、昆仑-阿尔金、环塔里木主要铁矿成矿区域进行了铁矿地质找矿和矿山开发建设。这些铁矿由于受到区域成矿作用的控制和构造影响,八钢公司各铁矿山成矿模式也均有不同,通过分析梳理,对八钢主要铁矿山的成矿模式进行简述。     

八钢第四届青年学术年会获奖论文

一等奖进一步提高八钢高炉喷煤比的有效措施张群　李涛八钢溅渣护炉工艺的实践应用刘江伟　肖明光　雷洪八钢 2 #高炉料车扩容改造刘建中　冯海斌八钢生活区深井供水自动控制系统简述蔡滔　王君玲采用均匀送风治理造球室环境王宁二等奖改善八钢焦炭质量的途径探讨邱健　汪霈霖用褐铁矿作烧结铺底料的研究臧疆文　张群　张则岗等ＨＲＢ335钢筋的内控成分范围的研究及确定刘奉家　戴天山八钢 (ＬＳ)拉丝钢的试制与开发刘江伟　张春辉高质量、高生产率的现代化高速线材生产线技术应 用周忠华新疆线材制品现状及发展前景张镭　周兰新小型棒材切…     

西北地区风电用钢特点及八钢开发风电钢实践

西北地区是我国风能资源蕴藏最丰富的地区,文章分析了西北地区用风电钢的性能要求及质量控制要求。介绍了八钢公司开发风电钢的技术难点、产品规格拓展状况及发展方向。     

灰成分对焦炭热性能的影响及结果预报

通过八钢新区6m焦炉投产以来半年多的生产实践,积累了大量不同生产配煤条件下的煤、焦试验数据,采用回归分析的方法获得了八钢现有煤源条件下,焦炭灰成分中主要成分对焦炭热性能影响的次序,初步建立了焦炭灰成分对焦炭热性能影响的预报模型,为八钢公司今后煤资源开发和生产配煤提供参考。     

改善25钢带状组织的工艺优化措施

针对八钢成功开发的25钢批量生产以后,出现产品性能波动较大的问题,通过分析产品性能情况,识别出主要问题是带状组织引起的延伸率下降,经过对亚共析钢带状组织的形成过程的分析研究,结合八钢的工艺设备现状,重点在炼钢连铸工艺、合金成分Ti的添加和冷轧退火工艺方面进行了优化,25钢的产品性能得到较好的控制。     

新疆铁矿业开发探讨

新疆是我国资源大省 (区 ) ,矿业开发在西部大开发中有着特殊地位 ,铁矿业开发是矿业开发的一部分。就八钢的发展需求 ,提出了新疆铁矿业开发思路。     

关于八钢设备状态监测诊断系统建设的探讨

随着八钢整体生产规模的不断发展,生产设备逐步大型化、现代化,为实现公司主管部门对现场关键大型设备运行状态的信息收集和集中管理,需要应用设备状态监测和故障诊断技术,建立八钢关键重点设备以受控点状态检测数据为基础的二级监测诊断网络系统,并将设备状态信息集成到八钢即将开发的设备管理信息系统,实现设备状态信息共享,为保障设备功能、精度、可靠性提供有力的支撑。     

Role of ultrasonography in the early diagnosis of ovarian cancer

BACKGROUND: Malign ovarian carcinomas are the main cause of death from gynaecological cancer. In fact, only in 30% of cases is it diagnosed at an early stage. In our study the possibility of an early diagnosis of the ovarian malignant neoplasia was evaluated. METHODS: One hundred and thirty-nine women with adnexal swelling were subjected to pelvic echography. The sample was selected during routine gynaecological checkups. RESULTS: All the cases showing a mass diameter exceeding 25 mm were classified as positive. Echotomography showed 129 cases of positive ovarian mass with an accurate diagnosis in 92.27%. Integrating the results of echography with those of radioimmunoassay an early diagnosis of ovarian cancer was achieved in 92.53 of the cases. CONCLUSIONS: A routine pelvic examination associated with pelvic echotomography represent an effective protocol for the diagnosis of ovarian cancer at an early stage.     

Early gastric cancer mimicking advanced gastric cancer

The clinicopathological features of 37 early gastric cancers mimicking advanced gastric cancer were reviewed retrospectively, and were compared with 596 other early gastric cancers and 126 mp gastric cancers, defined as gastric cancer invading the muscularis propria of the stomach. A greater tumour size (P < 0.005), submucosal invasion (P < 0.005), lymph node and lymph vessel invasion (P < 0.005) and vascular invasion (P < 0.025) were found more frequently in early gastric cancers mimicking advanced gastric cancers than in other early gastric cancers. There were no significant differences in the clinicopathological findings between early gastric cancers mimicking advanced gastric cancers and mp gastric cancers. Patients with early gastric cancers mimicking advanced gastric cancers showed a lower survival rate than patients with other early gastric cancers, but a higher survival than those with mp gastric cancers. The macroscopic appearance of an advanced gastric cancer was an indicator of massive submucosal invasion and lymph node metastasis in early gastric cancer. As early gastric cancers mimicking advanced gastric cancers showed similar clinicopathological findings to mp gastric cancers, these cancers should be treated as mp gastric cancers.     

Early intervention and prevention in schizophrenia--experiences from a study in Stavanger, Norway

The paper gives an overview of current literature and research that makes the foundation and rationale for early intervention in functional psychosis, i.e. schizophrenia. The duration of untreated psychosis (DUP) and its practical implications are demonstrated. An outline of the prerequisites of the psychiatric services and the societal preconditions for effective early intervention strategies is given. The development of working clinical treatment programmes within the county of Rogaland, Norway, is described, as well as strategies towards enhancing the knowledge of serious psychiatric disorders among the population and thus making the foundation for effective and early help-seeking. The different resistance factors in relation to early intervention are introduced. Preliminary results of an early intervention is presented, indicating that it is possible to shorten DUP (from 114 to 20 weeks), and showing that DUP is the single most important predictor for poor prognosis.     

Randomised study of risk of fetal loss related to early amniocentesis versus chorionic villus sampling

BACKGROUND: Several cohort studies have shown the feasibility of early amniocentesis (between 11 and 13 weeks of gestation) as an alternative to chorionic villus sampling (CVS) for karyotyping, but the only completed randomised study of fetal safety showed a significant fetal-loss risk related to first-trimester amniocentesis. We assessed fetal safety in early amniocentesis and CVS. METHODS: We assessed early amniocentesis at 11-13 weeks gestational age compared with the fetal risk associated with CVS at 10-12 weeks. 1160 pregnant women were randomly assigned one procedure (581 early amniocentesis, 579 CVS) after a baseline ultrasound examination at 10 weeks' gestation and were followed up until birth. Total fetal loss and neonatal morbidity were the primary outcome measures. Sampling success and pregnancy complications were secondary outcomes. We used a filter to increase the cell yield in the early amniotic-fluid samples. CVS was transabdominal. FINDINGS: We found a significantly increased occurrence of talipes equinovarus in the early amniocentesis group (p < 0.01), the risk of which was associated with sampling at the earliest gestational ages and with temporary leakage of amniotic fluid after sampling. Therefore, the trial was stopped early, which reduced the power of the safety study. 4.8% (27) of fetuses in the CVS group and 5.4% (30) in the early amniocentesis group were lost after randomisation (p = 0.66). More detailed survival analysis did not show any significant differences in fetal loss rates. Leakage of amniotic fluid after sampling occurred significantly more frequently after early amniocentesis than after CVS (p < 0.001), but we found no other major differences in pregnancy complications. Significantly more CVS than early amniocentesis procedures were repeated or failed to produce a karyotype (p < 0.01). INTERPRETATION: Even though the numbers were small, we found an association between early amniocentesis and talipes equinovarus. We believe this association to be true, since it supports a trend in a similar randomised study. Our results show that early amniocentesis, when done with the filter technique, is associated with an abortion risk similar to CVS, although the limited size of our study population reduced the strength of this conclusion.     

Disability disclosure effects on employment interview ratings of applicants with nonvisible disabilities.

Objective: To investigate the effects of timing of verbal disclosure of a disability on employment interview ratings of applicants with nonvisible disabilities. Study Design: Participants (56 college students) viewed 2 videotaped employment interviews: 1 involving an applicant who disclosed a nonvisible disability (transverse myelitis), either early or late in the interview, and 1 with an applicant who did not disclose a disability. Outcome Measures: Qualifications/hiring, liking, and comfort with disability disclosure scales. Results: Applicants with nonvisible disabilities who chose to disclosure their disability were rated as more qualified and likeable when disclosing early in an interview. Conclusion: Individuals who wish to disclose an externally caused nonvisible disability (similar to transverse myelitis) should consider doing so early in an interview rather than at the end. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Glycocoding as an information management system in embryonic development

The past 5 years have seen a burgeoning in the amount of data emerging from laboratories studying the early stages of embryogenesis. Much of this data implicates various aspects of glycobiology in the initiation and regulation of these processes. The level of analytical detail coming from these investigations has surpassed our ability to fully understand its overall significance within the context of the interactive/dynamic developmental process. This review proposes a pause in this seemingly endless quest for more detail so that we may take stock of our goals and objectives. The proposed goals include a mechanistic understanding of the process(es) involved in information managed at various 'transition points' during early embryogenesis, and an understanding of the mechanism(s) by which the spatial/temporal regulation of early development are managed. The 'transitions' which occur during cell to cell cluster, cell cluster to early organ architecture, and early organ architecture to functional organ development are fundamental and mirror the evolutionary process of biological information management. All of these 'transitions' involve increasing complexity, the development of hierarchies of information management systems (integrated bidirectionally), and spatial/temporal regulation which relies on historical events to map future structure and function. This review focuses on a relatively small number of studies which highlight these aspects of early development. A mechanism which involves glycocoding, an extension of the Roseman Hypothesis, and its direct use as an information management system is proposed and some supporting experimental evidence is presented. This extension of an existing hypothesis is related to several recent investigations, and is designed to broaden the experimental design of future studies so that these important process issues can be addressed.     

Monitoring aortic root effluent during retrograde cardioplegia delivery

Early signs of brain infarction can be detected by modern CCT technology even within the first 6 h after stroke. Little is known about the prognostic significance of early infarction signs in CCT. We prospectively evaluated clinical and CCT findings of 95 consecutive patients with an acute ischemia in the territory of the middle cerebral artery. All patients were admitted to our stroke unit within 6 h after stroke. In 55 patients CCT was performed within 3 h, and in 40 cases between 3 and 6 h. In all patients the clinical findings were assessed by the Scandinavian Stroke Scale (SSS). The disability due to stroke was evaluated after 4 weeks by use of the modified Rankin Scale. We could demonstrate the following early signs of cerebral infarction: focal hypodensity (23.2%), obscuration of basal ganglia (12.6%), focal brain swelling (22.1%), hyperdense middle cerebral artery sign (HMCA; 11.5%). In 3 patients early edema led to ventricular compression, in 1 patient to midline shift. The occurrence of early infarction signs did not depend on the etiology of ischemia but was significantly associated with a severe neurological deficit at admission and an unfavourable disability status 4 weeks after stroke. Focal brain swelling and HMCA were often followed by extensive infarction lesions on the follow-up CCT. In conclusion, early signs of hemispheric brain infarction visible on CCT scans performed within 6 h after stroke are correlated with severe stroke and an unfavourable functional outcome. However, a substantial part of our patients had a benign course of the disease in spite of early CCT pathology. Decisions on therapy in individual patients therefore should not depend on early CCT findings exclusively.     

Scanning the horizon for emerging health technologies. Conclusions from a European Workshop

To share the existing, albeit limited, experience among nations and to explore the feasibility of international collaboration on the identification and early evaluation of health care technologies, an workshop was arranged in September 1997. Twenty-seven policy makers and researchers from twelve countries attended the meeting and concluded that: the policy environment in most European countries is characterized by insufficient data on safety, effectiveness, and cost-effectiveness of health care innovations; that an early warning system is perceived as an essential mechanism for facilitating communication among policy makers, technology experts, and health professionals; and that collaboration on early warning activities might be even more useful than traditional collaboration in health technology assessment.     

25 years of aortic valve replacement using mechanical valves. Risk factors for early and late mortality

This study describes the changes that have taken place in patient characteristics in 25 years of aortic valve replacement using mechanical valves, and looks for risk factors for early and late mortality. During this period, 1449 mechanical valves were implanted. Overall early mortality (< 30 days) was 5.3% and for aortic valve replacement without concomitant procedures 3.9%. Overall survival rates at 5, 10 and 15 years were 80%, 63% and 49%, respectively. Despite an increased proportion of higher risk patients (older age, more reoperations, more concomitant coronary bypass surgery) survival rates improved throughout the study period. Early mortality was related to an early year of operation, urgency, reoperation and concomitant surgery to the tricuspid valve or ascending aorta. Late mortality was higher for patients of older age, with an early year of operation, male gender, concomitant coronary bypass surgery, mitral valve surgery or replacement of the ascending aorta. Aortic regurgitation did not have a major influence on early nor late mortality. The improvement in early and late mortality in more recent years was largely the result of the introduction of cardioplegia. A changing, non-proportional effect was observed for several risk factors during the follow-up period. This study illustrates the changes and improvements in medical care that have taken place in patients requiring aortic valve replacement.     

Anti-malignin antibody evaluation: a possible challenge for cancer management

The major problem in the management of cancer is the difficulty of an early diagnosis. Clinical signs and symptoms generally appear late in the course of the disease. The availability of a non-invasive test which detects a blood molecule closely associated with the malignant transformation of the cells could be of help in the early detection of cancer. Malignin is a 10 kDa polypeptide located in the cytoplasmic and outer membranes of all malignant cells. Anti-malignin antibodies (AMAs) are IgM immunoglobulins spontaneously produced by the host against the oncoprotein malignin when neoplastic transformation occurs; since AMAs are IgM, they can represent an "early" transformation indicator useful for the early detection of cancer. Elevated AMA serum concentrations, measured by means of TARGET@ reagent, have been demonstrated in patients with a wide spectrum of non-terminal active cancers, regardless of the anatomical site and histotype of the tumor. The AMA test showed a sensitivity and specificity of 95% on first determination and > 99% on repeated determinations, and has been reported to be a promising diagnostic tool for the early detection of cancer, as well as for monitoring of the response to treatment and possibly for screening of an asymptomatic population.