检索结果-南通市图书馆

Liver segment 2+3 living donation in liver transplantation for colorectal liver metastases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2020年第3期9卷 382-384页

作者： svein Dueland Pal-Dag Line Department of Oncology Oslo University HospitalOsloNorway Department of Transplantation Medicine Oslo University HospitalOsloNorway and Institute of Clinical MedicineUniversity of OsloNorway

Liver transplantation(LT)was offered to some colorectal cancer(CRC)patients with liver only metastases in the 1990s,however the treatment option was discontinued due to poor overall survival(OS)of 43%at 2 years posttr... 详细信息

关键词： colorectal metastases Liver

Gastric emptying measured by ultrasonography

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 Gastroenterology 1999年第2期5卷 5-6页

作者： Odd Helge Gilja, Trygve Hausken, svein degaard and Arnold Berstad

Ａｎｕｍｂｅｒｏｆｄｉｆｆｅｒｅｎｔｍｅｔｈｏｄｓｈａｖｅｂｅｅｎｕｓｅｄｔｏｅｓｔｉｍａｔｅｇａｓｔｒｉｃｅｍｐｔｙｉｎｇｉｎｈｕｍａｎｓ，ａｎｄａｌｈａｖｅｔｈｅｉｒａｄｖａｎｔａｇｅｓａｎｄｄｉｓａｄｖａｎｔａ... 详细信息

Ａｎｕｍｂｅｒｏｆｄｉｆｆｅｒｅｎｔｍｅｔｈｏｄｓｈａｖｅｂｅｅｎｕｓｅｄｔｏｅｓｔｉｍａｔｅｇａｓｔｒｉｃｅｍｐｔｙｉｎｇｉｎｈｕｍａｎｓ，ａｎｄａｌｈａｖｅｔｈｅｉｒａｄｖａｎｔａｇｅｓａｎｄｄｉｓａｄｖａｎｔａｇｅｓ．Ｔｈｅｍｅｔｈｏｄｏｆｃｈ...

关键词： gastric emptying stomach/ultrasonography stomach/pathophysiology

Sonography of the small intestine

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 Gastroenterology 2009年第11期15卷 1319-1330页

作者： Kim Nylund svein Фdegaard Trygve Hausken Geir Folvik Gülen Arslan Lied Ivan Viola Helwig Hauser Odd-Helge Gilja National Centre for Ultrasound in Gastroenterology Department of Medicine Haukeland University Hospital 5021 Bergen Norway Odd-Helge Gilja Institute of Medicine University of Bergen 5021 Bergen Norway Department of Medicine Haukeland University Hospital 5021 Bergen Norway Institute of Informatics University of Bergen 5008 Bergen Norway

In the last two decades, there has been substantial development in the diagnostic possibilities for examining the small intestine. Compared with computerized tomography, magnetic resonance imaging, capsule endoscopy and double-balloon endoscopy, ultrasonography has the advantage of being cheap, portable, flexible and user-and patient-friendly, while at the same time providing the clinician with image data of high temporal and spatial resolution. The method has limitations with penetration in obesity and with intestinal air impairing image quality. The flexibility ultrasonography offers the examiner also implies that a systematic approach during scanning is needed. This paper reviews the basic scanning techniques and new modalities such as contrast-enhanced ultrasound, elastography, strain rate imaging, hydrosonography, allergosonography, endoscopic sonography and nutritional imaging, and the literature on disease-specific findings in the small intestine. Some of these methods have shown clinical benefit, while others are under research and development to establish their role in the diagnostic repertoire. However, along with improved overall image quality of new ultrasound scanners, these methodshave enabled more anatomical and physiological changes in the small intestine to be observed. Accordingly, ultrasound of the small intestine is an attractive clinical tool to study patients with a range of diseases.

关键词：超声检查小肠计算机断层扫描检查诊断图像质量磁共振成像空间分辨率应变率成像

Simplified Approximate Expressions for the Boundary Layer Flow in Cylindrical Sections in Plankton Nets and Trawls

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Marine Science 2012年第2期2卷 66-69页

作者： svein Helge Gjosund SINTEF Fisheries and Aquaculture TrondheimNorway

Trawls and plankton nets are basically made up of conical and cylindrical net sections. In conical sections the flow will pass through the inclined net wall with a noticeable angle of attack, and then the flow, filtration and drag can be suitably modelled e.g. by a pressure drop approach [1]. In cylindrical and other non-tapered net sections, such as foreparts and extension pieces in trawls and plankton nets, the flow is directed along the net wall and is best considered in terms of a boundary layer. Boundary layer theory and turbulence models can be used to describe such flow, but this requires extensive numerical modelling and computational effort. Simplified approximate formulas providing a qualitative description of the flow with some quantitative accuracy are therefore also useful. This work presents simplified parametric expressions for boundary layer flow in cylindrical net sections, including the boundary layer thickness and growth rate along the net, the filtration velocity out of the net wall, the decrease in mass flux through the net due to the growing boundary layer, and the effect of twine thickness, flow (towing) velocity and the dimensions of the net. These expressions may be useful for assessing the existence and extension of a boundary layer, for appropriate scaling of boundary layer effects in model tests, for proper placement of velocity measurement probes, for assessing the influence on filtration and clogging of plankton net sections, and more.

关键词： Plankton Nets Trawls Non-Tapered Sections Flow Boundary Layer Filtration Drag

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

北欧国家的环境和自然资源统计

中国统计 2005年第2期20卷 53-54页

作者： svein Homstvedt 胡卫挪威统计局环境统计处国家统计局办公室

在和挪威统计局四年合作的过程中,我们和挪威同事建立了非常深厚的友谊,时至今日我们仍经常有业务上的交流。这篇文章对于我们系统内刚刚起步的环境统计来说,可能会有些帮助和启示,故将其翻译成中文,并经原作者同意后登出。

关键词：北欧环境统计自然资源统计

高温及CUI环境下富锌硅酸盐涂层的韧性和防腐蚀性能研究（英文）

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

高温及CUI环境下富锌硅酸盐涂层的韧性和防腐蚀性能研究（英文）

第4届中国耐高温防腐和防火技术研讨会

作者： svein Jacob Kaspersen Jotun A/S

无机硅酸锌已长期应用于CUI防护领域,但由于CUI工况恶劣,暴露出一些问题,从而对涂层产生不利影响。本研究采用目测法、盐雾老化法、附着力测试法等方法对富锌硅酸乙酯类涂层进行CUI失效分析,结果表明,在硅酸锌涂层上再涂覆一道有机硅面... 详细信息

无机硅酸锌已长期应用于CUI防护领域,但由于CUI工况恶劣,暴露出一些问题,从而对涂层产生不利影响。本研究采用目测法、盐雾老化法、附着力测试法等方法对富锌硅酸乙酯类涂层进行CUI失效分析,结果表明,在硅酸锌涂层上再涂覆一道有机硅面漆能提高涂层体系的防腐蚀性能。另外,对传统硅酸锌涂层进行配方设计优化,能延长其服役期。

关键词：硅酸锌失效分析防腐蚀性能 CUI

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

基材和温度对耐高温涂料性能的影响

涂层与防护 2022年第9期43卷 61-62页

作者：本刊编辑部 svein Jacob Kaspersen Anders Skilbred Henriette Eggen 不详佐敦公司

0引言耐高温涂料广泛应用于各行各业,且适用于不同的工况条件及不同的基材。其中,耐高温涂料主要用途之一是防止大气腐蚀和保温层下腐蚀(CUI)。此外,当用于不锈钢领域时,耐高温涂料还能降低氯化物应力腐蚀开裂(CSCC)和氧化。耐高温涂料... 详细信息

0引言耐高温涂料广泛应用于各行各业,且适用于不同的工况条件及不同的基材。其中,耐高温涂料主要用途之一是防止大气腐蚀和保温层下腐蚀(CUI)。此外,当用于不锈钢领域时,耐高温涂料还能降低氯化物应力腐蚀开裂(CSCC)和氧化。耐高温涂料的性能在很大程度上取决于受热时间、腐蚀环境以及基材的热膨胀和氧化过程。不同的基材受热时会有不同的反应。基材和涂料热膨胀的差异可能导致涂层开裂、脱落。

关键词：耐高温涂料氯化物应力腐蚀开裂氧化过程热膨胀受热时间大气腐蚀腐蚀环境基材

To Die at Home or to End Life in an Institution

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

Open Journal of Nursing 2015年第6期5卷 538-547页

作者： Liv Wergeland Sorbye Simen A.Steindal svein Lyngroth Institute of Nursing and Health Diakonhjemmet University CollegeOsloNorway Palliative Care Unit Department of OncologyOslo University HospitalOsloNorway Agenda Kaupang Evaluation&AssessmentB■rumNorway

In the Western world, 60%-80% of all deaths occur in an institution. This study aimed to determine the main causes for the low proportion of deaths at home in Norway. A retrospective cohort study was conducted in six Norwegian municipalities. The study employed official statistics and structured interviews with key staff individuals (spring 2012). We included 41 individuals that received palliative home care;21 died at home. The rate of deaths at home may be increased by an acceptance of death and confidence that home is a good, safe place to die. This study showed how challenging it was for the family and health personnel to be a fellow Pellegrino in the last steps of life. However, when physical distress is under control, and when a dying patient and his significant other genuinely wish for death at home, it is necessary to control physical distress. Greater holistic well-being may then be achieved at home than in the hospital.

关键词： Home Care Services Attitude towards Death Retrospective Cohort Studyomponent

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

主动脉瓣口血流速度空间分布形成机理研究

中国超声医学杂志 1999年第12期15卷 3-5页

作者：周玉清,svein Faerestrand,张青萍,乐桂蓉武汉市同济医科大学附属同济医院超声科 Dept.HeartDisease HaukelandHospital UniversityofBergen Norway 武汉市同济医科大学附属同济医院超声科武汉市同济医科大学附属同济医院超声科

目的：通过动物试验探讨主动脉瓣口血流速度空间分布的形成机理。方法：研究对象包括１０只猪，在全麻下实施开胸手术暴露心脏，并获得左室流出道长轴切面，使其长轴平行于超声声束方向。研究内容包括：１）利用彩色多普勒血流... 详细信息

目的：通过动物试验探讨主动脉瓣口血流速度空间分布的形成机理。方法：研究对象包括１０只猪，在全麻下实施开胸手术暴露心脏，并获得左室流出道长轴切面，使其长轴平行于超声声束方向。研究内容包括：１）利用彩色多普勒血流成像测量主动脉瓣口血流速度空间分布扭曲程度；２）观察左室流出道中轴线两侧彩色血流的对称性，判断血流会聚状态；３）根据二维图像测量室间隔角度。然后观察在整个射血期内上述三个指标的动态变化。结果：主动脉瓣口血流速度空间分布状态随左室流出道内血流会聚方式变化而变化。在射血早期，左室流出道内血流会聚方式最不对称，大部分血流沿室间隔及左室前壁流向主动脉瓣口。相应地，主动脉瓣口血流速度分布的扭曲程度最大，且最大流速紧靠室间隔及左室前壁。射血中、晚期，左室流出道内血流逐渐变为呈中轴对称性地进入主动脉瓣口，此时主动脉瓣口血流速度分布变为平坦对称。然而，从左室射血早期到中、晚期，室间隔角度却逐渐增大。结论：左室流出道内的血流会聚方式是决定主动脉瓣口血流速度空间分布的最重要因素。

关键词：血流速度分布彩色多普勒血流图主动脉瓣口左室流出道