检索结果-南通市图书馆

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

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

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

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

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Methods of protection and application of carotenoids in foods-A bibliographic review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Bioscience 2022年第4期48卷 43-52页

作者： Tailise Beatriz roll Zimmer Carla Rosane Barboza Mendonça Rui Carlos Zambiazi Department of Food Science and Technology Federal University of PelotasCap˜ao do Le˜ao Campus96010900PelotasRSBrazil Center of Chemical Pharmaceutical and Food SciencesFederal University of PelotasCap˜ao do Le˜ao Campus96010-900PelotasRSBrazil

The main novelty of the work was to carry out a full review of scientific data on recent techniques for the protection and application of carotenoids in food matrices,especially focused on the use of *** are pigments derived from plants and microorganisms that play a very important role in biological *** have many health benefits that attract the interest of researchers and consumers;however,they are chemically unstable,which restricts their application in food and pharmaceutical *** related to encapsulations and emulsions can be used to protect carotenoids and maintain their original characteristics during processing,storage and digestion,as well as improving their physicochemical properties and increasing the positive effects of their *** are several techniques that can be used for this purpose;however,this study aimed to inform in a brief and compact way the existing *** was found that studies on delivery systems for the use of carotenoids in foods are quite recent,with an emphasis on their application in *** need for more research is highlighted,expanding their application in different food matrices.

关键词： Nanotechnologies Pigments Conservation Health Fortification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际远距离教育的现状与发展趋势

开放教育研究 1997年第3期3卷 9-10页

作者： Trindade roll 国际远距离教育协会主席秘书长

国际远距离教育协会（ICDE）是世界性的远距离教育组织,是附属于联合国教科文组织的非政府机构,目前有120多个国家和地区加入了该组织。1997年4月8日,ICDE主席Armando Trindade博士（萄萄牙）和秘书长Raid roll博士（挪威）在上海电视... 详细信息

国际远距离教育协会（ICDE）是世界性的远距离教育组织,是附属于联合国教科文组织的非政府机构,目前有120多个国家和地区加入了该组织。1997年4月8日,ICDE主席Armando Trindade博士（萄萄牙）和秘书长Raid roll博士（挪威）在上海电视大学就国际远距离教育的现状和发展趋势做了报告,现将有关内容摘要如下,以飨读者。

关键词：远距离教育现状与发展开放教育双重模式学习材料传统大学全球计算机网络开放大学混合模式系统传统方式

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

品牌＋文化最佳制胜组合

质量与市场 2014年第6期 72-74页

作者： Martin roll

对一家寻求扩展海外市场的公司来说，全球化的最大意义之一是，如何平衡标准化与定制化。从品牌的角度来看，这个问题显得更为重要。当世界上一些最大的品牌在尝试拓展海外市场时，他们总是禁不住要在新市场重复经过验证的一些成功模式... 详细信息

对一家寻求扩展海外市场的公司来说，全球化的最大意义之一是，如何平衡标准化与定制化。从品牌的角度来看，这个问题显得更为重要。当世界上一些最大的品牌在尝试拓展海外市场时，他们总是禁不住要在新市场重复经过验证的一些成功模式，事实上，这是被很多公司遵循的套路。这种套路的假设是，正是因为知名品牌的可靠性、持续性，消费者才对其格外渴望。

关键词：知名品牌文化海外市场成功模式全球化定制化标准化新市场