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大直径浮选柱的应用

国外金属矿山 1992年第3期17卷 56-59页

作者： d.J.默多克 H.e.威斯洛基尔张光烈加拿大联合矿冶公司工程服务公司浮选柱技术分部

大型浮选柱装置是浮选回路的设计者和使用者目前经常研究的问题。这些大型浮选柱的可靠性已达到能够有把握选择的程度。已经发现,大型浮选柱在费用方面优于较小的设备,是值得考虑的。展望未来,今后的几年里,浮选柱尺寸的上限终究以多大... 详细信息

大型浮选柱装置是浮选回路的设计者和使用者目前经常研究的问题。这些大型浮选柱的可靠性已达到能够有把握选择的程度。已经发现,大型浮选柱在费用方面优于较小的设备,是值得考虑的。展望未来,今后的几年里,浮选柱尺寸的上限终究以多大为宜,将是令人关心的问题。

关键词：浮选柱大直径选矿

深部巩膜切除术联合铬制缝合材料作为胶原植入物的植入术:一项先导研究的中期疗效观察

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世界核心医学期刊文摘（眼科学分册） 2005年第9期1卷 32-33页

作者： Wevill M.T. Meyer d. Van Aswegen e. 杨建刚 Aston Academy of Life Sciences Aston University Birmingham B4 7ET United Kingdom

Aims: A pilot study of the safety and.e.ficacy of d.e. sclerectomy with a chromic suture implant (dSCI) for open angle glaucoma. Methods: This prospective trial involved 23 eyes of 16 consecutive patients with uncontrolled open angle glaucoma. The dSCI procedure involved radial suturing of a 2mm piece of 1/0 chromic suture as an implant. Intraocular pressure (IOP) measurements and.e.e examinations were performed preoperatively and regularly postoperatively for up to 66 months. Results: The mean follow-up period was 36.3 (Sd 19.9)-months. The mean preoperative IOPwas 26.3 (Sd 8.5)mmHg. Themean postoperative IOPwas 14.1 (Sd 2.8)mmHg atmonth 12, and 16.5 (Sd 2.3)mmHg at 36 months. Complete success rate, defined as an IOPlower than 21mmHg without medication was 77%of eyes at 36 months. Qualified success rate, defined as an IOPl ower than 21mmHg with medication, was 100%at 36 months. Paired t-test andWilcoxon test analysis of preoperative vs postoperative IOPat 36 months indicated a significant reduction in IOP, Intraoperative complications included rupture of the trabecular meshwork in seven eyes. exclusion of these patients from the results analysis revealed a mean follow-up of 37.1 months (Sd 9), preoperative mean IOPwas 25.9mmHg (Sd 4.1), 12-month mean IOPwas 13.4mmHg (Sd 2.8), and 36-month mean IOP16.6mmHg (Sd 2.1). early postoperative complications included hyphaema in two eyes and dislocation of implant in one eye. One eye developed a central retinal vein occlusion and cataract progression occurred in one eye. The mean postoperative duration of use of topical dexamethasone was 5.4 months (Sd 2). Conclusions: dSCI using a chromic suture implant provides good control of IOPat medium-term follow-upwith fewpostoperative complications. Prolonged use of postoperative anti-inflammatory medication was necessary.

关键词：巩膜切除术胶原植入物中期疗效缝合材料平均眼压术前眼压开角型青光眼术后眼压控制铬制羊肠线眼科检查

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肥胖与新发房颤危险之间的关系

世界核心医学期刊文摘（心脏病学分册） 2005年第4期1卷 20-21页

作者： Parise H. Levy d. e. J. Benjamin 王亭忠 Framingham Heart Study 73 Mount Wayte Ave Framingham MA 01702-5827 United States Dr.

Context: Obesity is associated with atrial enlargement and ventricular diastol ic dysfunction, both known predictors of atrial fibrillation(AF). However, it is unclear whether obesity is a risk factor for AF. Objective: To examine the asso ciation between body mass index(BMI) and the risk of developing AF. design, Sett ing, and Participants: Prospective, communitybased observational cohort in Fra mingham, Mass. We stud.e. 5282 participants(mean age, 57[Sd, 13] years; 2898 wom en[55%]) without baseline AF(electrocardiographic AF or arterial flutter). Body mass index(calculated as weight in kilograms divided by square of height in met ers) was evaluated as both a continuous and a categorical variable(normal define d as erweight, 25.0 to d obese, ≥30.0). In addition to adju sting for clinical confounders by multivariable techniques, we also examined mod.e.s including echocardiographic left atrial diameter to examine whether the infl uence of obesity was mediated by changes in left atrial dimensions. Main Outcome Measure: Association between BMI or BMI category and risk of developing newon set AF. Results: during a mean followup of 13.7 years, 526 participants(234 wo men) developed AF. Age adjusted incidence rates for AF increased across the 3 BM I categories in men(9.7, 10.7, and 14.3 per 1000 personyears) and women(5.1, 8 .6, and 9.9 per 1000 personyears). In multivariable models adjusted for cardio vascular risk factors and interim myocardial infarction or heart failure, a 4%i ncrease in AF risk per 1-unit increase in BMI was observed in men(95%confidenc e interval[CI], 1%-7%; P=.02) and in women(95%CI, 1%-7%; P=.009). Adjuste d hazard ratios for AF associated with obesity were 1.52(95%CI, 1.09-2.13; P=. 02) and 1.46(95%CI, 1.03-2.07; P=.03) for men and women, respectively, compare d with individuals with normal BMI. After adjustment for echocardiographic left atrial diameter in addition to clinical risk factors, BMI was no longer associat ed

关键词：舒张功能不全房扑左房扩大临床危险因素连续变量队列研究马萨诸塞州血管危险因素多变量模型混杂因素

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酶在油气田生产中的新用途

石油石化节能 2000年第3期 15-16+45页

作者： R.e.harris I.d.Mckay 孙应力聂淑兰莫非吉林石油集团公司采油工艺研究院

目前 ,利用酶可以在油气井的井眼或者地层中产生某些化学剂 ,进行增产、增注、控水 (堵水、调剖 )或者防砂。利用酶控制化学剂的形成 ,可以使化学剂在地层内均衡分布 ,而且具有极好的层段覆盖率。

关键词：酶油气田酸化控水防砂

慢性肝病对绝经后妇女骨密度和骨代谢指标的影响

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世界核心医学期刊文摘（妇产科学分册） 2006年第3期2卷 25-26页

作者： Uretmen S. Gol M. Cimrin d. Irmak e. 柳蕴 dokuz eylul University Faculty of Medicine Department of Obstetrics and Gynecology Inciralti Izmir Turkey

Objectives: Patients with chronic liver disease (CLd) have an increased prevalence of osteoporosis. However, there is limited information about the effects of end-stage liver disease on bone metabolism and bone mineral density values in postmenopausal women. The aim of this study was to investigate the effects of chronic liver disease on bone mineral density (BMd) and bone metabolism markers in postmenopausal women. Methods: We stud.e. BMd by using dual-energy X-ray absorptiometry (deXA), biochemical markers of bone turnover and calcium-parathyroid hormone (PTH)-Vitamin d axis in 22 postmenopausal women with CLd. Control group consisted of randomly recruited 30 healthy postmenopausal women. Results: Based on WHO criteria, the prevalence of osteoporosis was significantly higher in patients with CLd (72 versus 33%) compared to healthy postmenopausal women. Bone loss was more significant at the lumbar spine than femur in the study group. Urinary excretion of bone resorption marker deoxypyridinoline was increased significantly in patients with CLd. There were no significant differences in bone formation markers (osteocalcin and bone alkaline phosphatase) between the groups. Conclusions: CLd increases the prevalence of osteoporosis in postmenopausal women, particularly in the lumbar spine. Increased bone resorption seems to be the main reason for osteoporosis in these patients. We suggest that treatment strategies should be improved in these women to protect them from subsequent fractures.

关键词：慢性肝病骨代谢指标骨密度骨质疏松发病率吸收测量法骨转换甲状旁腺激素骨吸收双能骨钙素

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现代家用电冰箱和冻结箱(五)

制冷技术 1990年第1期10卷 21-24,8页

作者： ANd.e. d.ALTHOUS B.S.(M.e.) MA. 冯华众

37.立式冻结箱一籍体和电路(Whirlopool公司) 立式冻结箱箱体的布置和单门电冰箱相似,参考图46。门上往往装锁的。人工除霜机组的蒸发器一般是箱内搁架的一部份。无霜系统使用一个装在隔板后面的蒸发器。一个风扇将空气循环,通过蒸发器... 详细信息

37.立式冻结箱一籍体和电路(Whirlopool公司) 立式冻结箱箱体的布置和单门电冰箱相似,参考图46。门上往往装锁的。人工除霜机组的蒸发器一般是箱内搁架的一部份。无霜系统使用一个装在隔板后面的蒸发器。一个风扇将空气循环,通过蒸发器后再通过食品部份。过滤器和干燥器是合并的,见图46。通电时,

关键词：电冰箱冻结箱家用电器

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美国商标和服务标志法律初探

法学评论 1994年第6期12卷 67-73页

作者：小劳伦斯 e.埃文斯刘卫翔

商标和服务标志是法律的一个狭窄领域,它常常被忽视并被公众的错误理解所困扰。本文以简明、实用的方法,试图澄清错误的理解,并回答律师及公民提出的问题。一、商标的普通神话人们普遍认为,在县里官员面前提出“假定的名字”或“d/b/a”

关键词：商标注册服务标志使用申请表示属性描述性商品商标侵权案件零售服务联邦商标法修正案

Parameters estimation of an electric Fan Using ANN

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Journal of Intelligent Learning Systems and Applications 2010年第1期2卷 43-48页

作者： Himanshu Vijay d. K. Chaturvedi 不详

electric Fans are very commonly used in the industries, domestic applications and in tunnels for cooling and ventila-tion purposes. Fan parameters estimation is an important task as far as the reliable operation of a fan system is con-cerned. Basically, a fan is mainly consisting of a single phase induction motor and therefore fan system parameters are essentially the electrical parameters e.g. resistances, reactances and some load parameters (fan blades).These parame-ters often change under varying operating conditions and the knowled.e.of these parameters is necessary to have opti-mum and.e.ficient operation of the system. Therefore, fan system parameters are required to be estimated. Further, fan system parameters estimation is required to ensure the smooth system operation and to avoid any malfunctioning of the system during abnormal working conditions. In this paper, Artificial Neural Networks (ANN) approach has been used for parameter estimation of a fan system. The simulated and.e.perimental results are compared.

关键词： Artificial Neural Networks Fan System Mathematical Modeling Parameters estimation

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儿童中不良事件和可预防的不良事件

世界核心医学期刊文摘（儿科学分册） 2006年第6期2卷 43-44页

作者： Woods d. Thomas e. Holl J. 王一飞 Institute for Health Services Research and Policy Stud.e. Feinberg School of Medicine Northwestern University 339 E Chicago Ave Chicago IL 60611 United States Dr.

Context. Patient safety has been recognized as an important problem in health care. However, knowled.e.about ad.e.se events and preventable ad.e.se events in child.e. is relatively limited. Objective. To describe the incidence and types of ad.e.se events and preventable ad.e.se events in child.e.. design. Analysis of pediatric hospitalizations in the Colorado and Utah Medical Practice Study, which involved a retrospective, 2-level (nurse and physician) medical record review of a populationbased, representative sample of all pediatric hospital discharges. Main Measures. Ad.e.se events were defined as an injury caused by medical management rather than disease processes that resulted in either prolonged hospitalization or disability at discharge. A preventable ad.e.se event was defined as an avoidable ad.e.se event based on currently available knowled.e.and accepted practices. Patients. 3719 discharged hospital patients, 0-20 years old, and 7528 nonelderly (21-65 years old) discharged adult patients in Colorado and Utah. Setting. All hospitals in Colorado and Utah. Results. Ad.e.se events occurred in 1%of pediatric hospitalizations in Colorado and Utah; 0.6%were preventable. Preventable ad.e.se events rates were 0.53%in neonates and infants (0-0.99 years), 0.22%in child.e. 1-12 years of age, and 0.95%in adolescents 13-20 years of age, compared with a rate of 1.50%in nonelderly adults. Of preventable ad.e.se event types, birth related (32.2%) and diagnostic related (30.4%) events were the most common and were significantly more common than surgically related preventable ad.e.se events (3.5%). Conclusions. These data suggest that ～70 000 child.e. hospitalized in the United States experience an ad.e.se event each year; 60%of these events may be preventable. The epidemiology of ad.e.se events and preventable ad.e.se events in child.e. is different than in adults. To reduce the ad.e.se events that occur in hospitalized child.e., research should focus on adolescent hospitali

关键词：儿童医院预防成年患者出院病例住院情况犹他州医疗健康医疗活动医疗记录医疗措施