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Chinese Journal of Mechanical Engineering 2002年第4期15卷 314-318页

作者： Cai Zhongyi Li Mingzhe Cui Xiangji roll Forging Institute, Jilin University, Changchun 130025, China roll Forging Institute Jilin University Changchun 130025

A new numerical method to predict the initial blank geometry from the desiredobjective shape of parts is presented. Based on the conditions that the deformations in materialare most evenly distributed and that the volume remains constant, a positive definite functional forblank design is constructed. The functional is minimized by an iterative scheme of finite element,and then the optimal initial configuration is obtained. The method is easy and expedient to use. Theresults of numerical simulation of forming process and multi-point forming experiments for sheetmetal demonstrate that good precision is achieved by the proposed method.

关键词： sheet metal blank design finite element

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Mechanized Tunneling in Soft Soils： Choice of Excavation Mode and Application of Soil-Conditioning Additives in Glacial Deposits

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Engineering 2017年第6期3卷 863-870页

作者： roll Zumsteg Lars Langmaack Gruner AG Basel 4020 Switzerland Normet International Ltd. Hunenberg 6331 Switzerland

The history of the formation of the alpine region is affected by the activities of the glaciers, which have a strong influence on underground works in this area. Mechanized tunneling must adapt to the presence of sound and altered rock, as well as to inhomogeneous soil layers that range from permeable gravel to soft clay sediments along the same tunnel. This article focuses on past experiences with tunnel-boring machines （TBMs） in Switzerland, and specifically on the aspects of soil conditioning during a passage through inhomogeneous soft soils. Most tunnels in the past were drilled using the slurry mode （SM）, in which the application of different additives was mainly limited to difficult zones of high permeability and stoppages for tool change and modification. For drillings with the less common earth pressure balanced mode （EPBM）, continuous foam conditioning and the additional use of polymer and bentonite have proven to be successful. The use of conditioning additives led to new challenges during separation of the slurries （for SM） and disposal of the excavated soil （for EPBM）. If the disposal of chemically treated soft soil mate- rial from the earth pressure balanced （EPB） drive in a manner that is compliant with environmental legislation is considered early on in the design and evaluation of the excavation mode, the EPBM can be beneficial for tunnels bored in glacial deposits.

关键词： Soil conditioning Earth pressure balanced shield Slurry shield Mechanized tunneling

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STANDARDIZED *** ACUPUNCTURE FOR CHRONIC LOW BACK PAIN — A RANDOMIZED CONTrollED TRIAL

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Journal of Integrative Medicine 2014年第3期 224-225页

作者： Daniel Pach Xiaoli Yang-Strobel Rainer Lüdtke Lüdtke Stephanie roll Katja Icke Benno Brinkhaus Claudia M.Witt Institute for Social Medicine Epidemiology and Health EconomicsCharité-Universittsmedizin Berlin Karl and Veronica Carstens Foundation 3. Center for Integrative Medicine University of Maryland School of Medicine

Background: Chinese medical diagnoses and treatment recommendations for specific patients with chronic low back pain vary widely across practitioners.A comparison of individualized treatment with a thoughtfully developed standardized approach is useful to determine which, if either, is ***: We aimed to compare the effectiveness of standardized and individualized acupuncture treatment in patients with chronic low back ***: We performed a single-centre randomized controlled single-blind trial in a general medical practice in Germany run by a Chinese born medical doctor trained in Western and Chinese medicine.150 outpatients with chronic low back pain were randomly allocated to two groups(78 standardized acupuncture and 72 individualized acupuncture).Patients received either standardized acupuncture or individualized *** encompassed between 10 to 15 treatments based on individual symptoms with two treatments per *** main outcome measure was the area under the curve(AUC), summarizing eight weeks of daily rated pain severity measured with a visual analogue scale(0 mm=no pain, 100 mm=worst imaginable pain).Results: No significant differences between groups were observed for the AUC(individualized acupuncture mean:1768.7 [95% CI, 1460.4; 2077.1]; standardized acupuncture 1482.9 [1177.2; 1788.7]; group difference, 285.8 [-33.9; 605.5] P=0.080).Conclusion: In this single-centre trial individualized acupuncture was not superior to standardized acupuncture for patients suffering from chronic *** a next step a multi-centre non-inferiority study should be performed to investigate whether standardized acupuncture treatment for chronic low back pain might be applicable in a broader usual care setting.

关键词： AUC STANDARDIZED VS.INDIVIDUALIZED ACUPUNCTURE FOR CHRONIC LOW BACK PAIN A RANDOMIZED CONTrollED TRIAL

Impact of pain on health-related quality of life in patients with inflammatory bowel disease

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World Journal of Gastroenterology 2010年第25期16卷 3168-3177页

作者： Anja Schirbel Anne Reichert Stephanie roll Daniel C Baumgart Carsten Büning Bianca Wittig Bertram Wiedenmann Axel Dignass Andreas Sturm Division of Gastroenterology and Hepatology Department of Medicine Charité-Campus Virchow Clinic Universittsmedizin Berlin 13353 Berlin Germany Institute for Social Medicine Epidemiology and Health Economics Campus Mitte Charité-Universittsmedizin Berlin 10117 Berlin Germany Division of Gastroenterology Hepatology and Endocrinology Campus Mitte Charité-Universittsmedizin Berlin 10117 Berlin Germany Division of Gastroenterology Infectiology and Rheumatology Department of Medicine Charité-Campus Benjamin Franklin Universittsmedizin Berlin 12203 Berlin Germany Department of Medicine I Markus-Hospital Wilhelm-Epstein-Str. 4. 60431 Frankfurt/Main Germany

AIM: To evaluate intensity, localization and cofactors of pain in Crohn’s disease and ulcerative colitis patients in connection with health-related quality of life (HRQOL) and disease activity. METHODS: We reviewed and analyzed the responses of 334 patients to a specifically designed questionnairebased on the short inflammatory bowel disease questionnaire (SIBDQ) and the German pain questionnaire. Pain intensity, HRQOL, Crohn’s disease activity index (CDAI) and colitis activity index (CAI) were correlated and verified on a visual analog scale (VAS). RESULTS: 87.9% of patients reported pain. Females and males reported comparable pain intensities and HRQOL. Surgery reduced pain in both genders (P = 0.023), whereas HRQOL only improved in females. Interestingly, patients on analgesics reported more pain (P = 0.003) and lower HRQOL (P = 0.039) than patients not on analgesics. A significant correlation was found in UC patients between pain intensity and HRQOL (P = 0.023) and CAI (P = 0.027), and in CD patients between HRQOL and CDAI (P = 0.0001), but not between pain intensity and CDAI (P = 0.35). No correlation was found between patients with low CDAI scores and pain intensity. CONCLUSION: Most IBD patients suffer from pain and have decreased HRQOL. Our study reinforces the need for effective individualized pain therapy in IBD patients.

关键词： Disease activity index Health-related quality of life Inflammatory bowel disease Pain

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铸造半钢轧辊的研制

钢铁 1984年第5期19卷 29-36页

作者：王贵明王璞琪孙铎基钢铁研究总院北京轧辊厂

型钢和线材轧机的粗轧和中间机架的轧辊采用含C 1.3～1.5％;Si 0.2～0.6％;Mn 0.7～1.0％;Ni 0.8～1.2％;Cr 0.8～1.2％;Mo 0.4～0.6％和P、S≤0.035％的半钢制造。成分中加入稀土元素细化了碳化物,改善了韧性。轧辊在金属型中铸造,并经... 详细信息

型钢和线材轧机的粗轧和中间机架的轧辊采用含C 1.3～1.5％;Si 0.2～0.6％;Mn 0.7～1.0％;Ni 0.8～1.2％;Cr 0.8～1.2％;Mo 0.4～0.6％和P、S≤0.035％的半钢制造。成分中加入稀土元素细化了碳化物,改善了韧性。轧辊在金属型中铸造,并经1050～1100℃扩散退火,800～820℃球化退火,900℃以上正火和600～650℃回火。热处理后轧辊强度大于65kgf/mm~2,硬度HS41～45。这种半钢轧辊的使用寿命比70Mn2铸钢轧辊提高1～9倍。每年在每一机架上可节约轧辊费用3×10~4(?)。

关键词：轧辊粗轧碳化物碳化合物中间机架半钢

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高铬铸钢离心轧辊断裂原因分析

特种铸造及有色合金 2006年第7期26卷 449-451页

作者：秦英方毛卫民北京科技大学

针对某公司热带连轧机R2粗轧高铬钢离心球芯复合工作辊出现的辊身断裂事故,通过对高铬钢离心球芯复合轧辊的特性分析、断口形貌分析、断口外层和芯部组织金相分析、外层不稳定相残余奥氏体含量的测定、轧辊在使用过程中的热应力计算等... 详细信息

针对某公司热带连轧机R2粗轧高铬钢离心球芯复合工作辊出现的辊身断裂事故,通过对高铬钢离心球芯复合轧辊的特性分析、断口形貌分析、断口外层和芯部组织金相分析、外层不稳定相残余奥氏体含量的测定、轧辊在使用过程中的热应力计算等系列工作,得出造成辊身断裂的主要原因是:轧辊使用过程中,烫辊时间不够,致使轧辊外层与芯部温差过大,导致热应力断裂。避免热应力断裂的主要措施是根据辊温情况合理烫辊。

关键词：高铬铸钢离心轧辊断裂热应力

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油气层的平均渗透率标定

油气田开发工程译丛 1992年第2期 2-6,7页

作者： roll.,JB 刘顺生

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真实向上，表现未满——谈新《荣誉勋章》

大众软件 2010年第23期 97-98页

作者： roll 浙江

我所扮演的游骑兵下士亚当斯架着一挺M249向对面塔利班的0sh—K机枪阵地拼命的倾泻着子弹，掩护我们的军士长慢慢摸向阵地前沿，并且丢出标示投弹位置的红色烟幕弹。

关键词：《荣誉勋章》塔利班亚当斯烟幕弹阵地标示

Acupuncture in diabetic peripheral neuropathy-neurological outcomes of the randomized acupuncture in diabetic peripheral neuropathy trial

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World Journal of Diabetes 2023年第12期14卷 1813-1823页

作者： Sebastian Hoerder Isabel Valentina Habermann Katrin Hahn Gesa Meyer-Hamme Miriam Ortiz Weronika Grabowska Stephanie roll Stefan N.Willich Sven Schroeder Benno Brinkhaus Joanna Dietzel Institute of Social Medicine Epidemiology and Health EconomicsCharitéUniversitätsmedizinBerlin 10117Germany Department of Neurology CharitéUniversitätsmedizinCharitéplatz 1Berlin 10117Germany HanseMerkur Center of Traditional Chinese Medicine at University Hospital Eppendorff Martinistr 52Hamburg 20246Germany

BACKGROUND Diabetic peripheral neuropathy(DPN)is a common complication of diabetes mellitus and can lead to serious *** strategies for pain control are available but there are few approaches that influence neurological deficits such as *** To investigate the effectiveness of acupuncture on improving neurological deficits in patients suffering from type 2 *** The acupuncture in DPN(ACUDPN)study was a two-armed,randomized,controlled,parallel group,open,multicenter clinical *** were randomized in a 1:1 ratio into two groups:The acupuncture group received 12 acupuncture treatments over 8 wk,and the control group was on a waiting list during the first 16 wk,before it received the same treatment as the other *** groups received routine *** parameters were evaluated after 8,16 and 24 wk and included neurological scores,such as an 11-point numeric rating scale(NRS)11 for hypesthesia,neuropathic pain symptom inventory(NPSI),neuropathy deficit score(NDS),neuropathy symptom score(NSS);nerve conduction studies(NCS)were assessed with a handheld point-of-care ***-two participants were *** NRS for numbness showed a difference of 2.3(P<0.001)in favor of theacupuncture group,the effect persisted until week 16 with a difference of 2.2(P<0.001)between groups and 1.8points at week 24 compared to *** NPSI was improved in the acupuncture group by 12.6 points(P<0.001)at week 8,the NSS score at week 8 with a difference of 1.3(P<0.001);the NDS and the TNSc score improvedfor the acupuncture group in week 8,with a difference of 2.0 points(P<0.001)compared to the control *** were persistent in week 16 with a difference of 1.8 points(P<0.05).The NCS showed no *** both groups only minor side effects were *** Study results suggest that acupuncture may be beneficial in type 2 diabetic DPN and seems to lead to a reductionin neurological *** serious a

关键词： Diabetic peripheral neuropathy Numbness Nerve conduction study Acupuncture