检索结果-南通市图书馆

国际医学放射学杂志 2024年第05期 619-620页

作者： M.T.Hagar M.Soschynski R.Saffar M.F.Molina-Fuentes J.Weiss a.rau 苗彦许振华

目的与有创冠状动脉造影（ICA）对照，评价超高分辨光子计数CT血管成像（UHR PCD-CTA）检测冠状动脉支架通畅性的准确度。方法前瞻性纳入2022年8月—2023

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

高效节能纺织品后处理

国际纺织导报 2015年第10期43卷 46-48页

作者： A.Dinkelmann V.von Arnim T.Stegmaier G.Gresser a.rau M.Hoppe H.Walter A.Wagner 孙立邓肯道夫纺织技术与工艺研究所(ITV) Ahlbrandt系统公司 J.G.Knopf's Sohn公司

邓肯道夫纺织技术与工艺研究所(ITV)的科学家提出将电晕预处理和表面高效整理剂喷涂应用相结合,以极大地减少纺织品后整理能源的消耗。该法已经由纺织整理机械工程及纺织助剂生产商的合作得以验证。除了ITV,Ahlbrandt系统机械工程公司和... 详细信息

邓肯道夫纺织技术与工艺研究所(ITV)的科学家提出将电晕预处理和表面高效整理剂喷涂应用相结合,以极大地减少纺织品后整理能源的消耗。该法已经由纺织整理机械工程及纺织助剂生产商的合作得以验证。除了ITV,Ahlbrandt系统机械工程公司和Knopf's Sohn后整理公司在该项目中也起到了关键作用。项目的管理机构在德国的卡尔斯鲁厄。

关键词：电晕预处理喷涂能源

维普期刊数据库

超高分辨光子计数CT检测高危人群冠状动脉疾病的准确性

在线全文

学校读者我要写书评

暂无评论

国际医学放射学杂志 2023年第4期 485-485页

作者： M.T.Hagar M.Soschynski R.Saffar a.rau J.Taron J.Weiss 邓熹杨

摘要最近推出的光子计数CT可能会改善对冠心病高危病人的无创性评估。目的以有创冠状动脉造影（ICA）为参考标准，确定超高分辨率（UHR）冠状动脉CT血管成像

关键词：

通过深度学习分割可以精准描绘多系统萎缩的壳核结构

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2023年第6期 754-754页

作者： a.rau N.Schr?ter M.Rijntjes F.Bamberg W.H.Jost M.Zaitsev 徐浩洋

摘要目的在神经退行性疾病中，对萎缩结构进行精确分割仍然是一项挑战。对比现有分割算法，该研究在多系统萎缩（MSA）、帕金森病（PD）和健康对照组（HC）中确定了深

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

半导体工业生产中的人因工程风险与挑战

工业工程与管理 2024年第2期29卷 1-9页

作者：杨敏倩饶培伦清华大学工业工程系北京100084

半导体生产过程具有工艺复杂、自动化程度高、操作精度高等特点。从事该生产过程的工人面临许多生理与心理方面的风险。从人因工程的角度出发,首先,结合产线中工人的工作内容,提炼了半导体生产过程中面临的核心人因工程风险;其次,从生... 详细信息

半导体生产过程具有工艺复杂、自动化程度高、操作精度高等特点。从事该生产过程的工人面临许多生理与心理方面的风险。从人因工程的角度出发,首先,结合产线中工人的工作内容,提炼了半导体生产过程中面临的核心人因工程风险;其次,从生理、认知、组织三方面将这些风险进行分类,并从相关文献中总结造成这些风险的工作任务因素、机器和系统因素、环境因素,从而提出了半导体工业生产中的人因工程风险与挑战及其影响因素模型;然后,分别对三类风险及影响因素进行了详细的文献综述分析;最终,提出了若干聚焦于国内半导体生产行业的人因工程研究方向建议,包括工作姿势培训方法、工人身体心理健康状况评估、工作地与产线布局设计、人机交互设计等,以促进我国半导体行业发展。

关键词：半导体产业人因工程工业工程管理

维普期刊数据库

零工工作者的算法感知因素及其影响——以外卖骑手为例

在线全文

学校读者我要写书评

暂无评论

工业工程与管理 2024年第4期29卷 1-10页

作者：李彦怡袁天一饶培伦清华大学工业工程系

本文以外卖骑手为代表，探索零工工作者的算法感知因素及其对工作满意度和未来工作意愿的影响。首先，在田野调查和文献调研的基础上，设计了问卷并通过实地走访和滚雪球方式发放了458份问卷，回收了313份有效数据；其次，采用因子分析... 详细信息

本文以外卖骑手为代表，探索零工工作者的算法感知因素及其对工作满意度和未来工作意愿的影响。首先，在田野调查和文献调研的基础上，设计了问卷并通过实地走访和滚雪球方式发放了458份问卷，回收了313份有效数据；其次，采用因子分析，总结出8个不同维度的算法感知因素，建立了外卖骑手的算法感知模型；最后，使用回归分析探索了人口学特征及算法感知因素对工作满意度和工作意愿的影响。结果显示，性别、户籍、算法监控、算法透明度、准入门槛等因素均会对工作满意度及工作意愿产生影响。外卖等零工众包平台在设计算法时，除了考虑效率，还应当考虑工作者对算法的感知，关注骑手的经验与感受，实现行业的积极可持续发展。

关键词：零工外卖外卖骑手算法感知

维普期刊数据库

A Novel Contactless Method for Characterization of Semiconductors：Surface Electron Bean Induced Voltage in Scanning Electron Microscopy

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2002年第9期19卷 1329-1332页

作者：朱世秋 E.I.rau 等 NationalLaboratoryforSuperlatticesandMicrostructures InstituteofSemiconductorsChineseAcademyofSciencesBeijing100083 DepartmentofPhysics MoscowStateUniversityMoscow119899Russia

We present a novel contactless and nondestructive method called the surface electron beam induced voltage (SEBIV) method for characterizing semiconductor materials and devices. The SEBIV method is based on the detection of the surface potential induced by electron beams of scanning electron microscopy (SEM). The core part of the SEBIV detection set-up is a circular metal detector placed above the sample surface. The capacitance between the circular detector and whole surface of the sample is estimated to be about 0.64pf. It is large enough for the detection of the induced surface potential. The irradiation mode of electron beam (e-beam) influences the signal generation. When the e-beam irradiates on the surface of semiconductors continuously, a differential signal is obtained. The real distribution of surface potentials can be obtained when a pulsed e-beam with a fixed frequency is used for irradiation and a lock-in amplifier is employed for detection. The polarity of induced potential depends on the structure of potential barriers and surface states of samples. The contrast of SEBIV images in SEM changes with irradiation time and e-beam intensity.

关键词： Scanning electron microscopy

Severe acute pancreatitis: Clinical course and management

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 2007年第38期13卷 5043-5051页

作者： Hans G Beger Bettina M rau Department of General Surgery Department of Viszeralsurgery University of Ulm (1982-2001) Donau-Klinikum Neu-Ulm Germany Department of General Viszeral Vascular and Pediatric Surgery Universit?tsklinikum des Saarlandes Homburg/ Saar Germany

Severe acute pancreatitis (SAP) develops in about 25% of patients with acute pancreatitis (AP). Severity of AP is linked to the presence of systemic organ dysfunctions and/or necrotizing pancreatitis pathomorphologically. Risk factors determining independently the outcome of SAP are early multi-organ failure, infection of necrosis and extended necrosis (> 50%). Up to one third of patients with necrotizing pancreatitis develop in the late course infection of necroses. Morbidity of SAP is biphasic, in the first week strongly related to early and persistence of organ or multi-organ dysfunction. Clinical sepsis caused by infected necrosis leading to multi-organ failure syndrome (MOFS) occurs in the later course after the first week. To predict sepsis, MOFS or deaths in the first 48-72 h, the highest predictive accuracy has been objectified for procalcitonin and IL-8; the Sepsis- Related Organ Failure Assessment (SOFA)-score predicts the outcome in the first 48 h, and provides a daily assessment of treatment response with a high positive predictive value. Contrast-enhanced CT provides the highest diagnostic accuracy for necrotizing pancreatitis when performed after the first week of disease. Patients who suffer early organ dysfunctions or at risk of developing a severe disease require early intensive care treatment. Early vigorous intravenous fluid replacement is of foremost importance. The goal is to decrease the hematocrit or restore normal cardiocirculatory functions. Antibiotic prophylaxis has not been shown as an effective preventive treatment. Early enteral feeding is based on a high level of evidence, resulting in a reduction of local and systemic infection. Patients suffering infected necrosis causing clinical sepsis, pancreatic abscess or surgical acute abdomen are candidates for early intervention. Hospital mortality of SAP after interventional or surgical debridement has decreased in high volume centers to below 20%.

关键词： Severe acute pancreatitis Multiorgan failure syndrome Infected necrosis Fluid replacement Enteral feeding Surgical and interventional debridement

Screening for nonalcoholic fatty liver disease-when,who and how?

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 2021年第35期27卷 5803-5821页

作者： Christoph G Dietrich Monika.rau Andreas Geier Department of Internal Medicine Bethlehem Health CenterStolberg 52222Germany Department of Internal Medicine II University Hospital WürzburgWürzburg 97080Germany Department of Medicine II University Hospital WürzburgWürzburg 97080Germany

Nonalcoholic fatty liver disease(NAFLD)is becoming a frequent liver disease,especially in patients with metabolic syndrome and especially in Western *** of NAFLD comprise progressive fibrosis,cirrhosis and hepatocellular *** also represents an independent risk factor for cardiovascular disease,extrahepatic neoplasia and other organ damage,such as renal *** the epidemiological importance of the disease,new developments in specific treatment of the disease and the wide availability of noninvasive techniques in estimating steatosis and fibrosis,NAFLD should be subject to screening programs,at least in countries with a high prevalence of the *** review discusses prerequisites for screening,cost-effectiveness,current guideline recommendations,suitability of techniques for screening and propositions for the following questions:Who should be screened?Who should perform screening?How should screening be performed?It is time for a screening program in patients at risk for NAFLD.

关键词： Screening Nonalcoholic fatty liver disease Diabetes Liver fibrosis Cirrhosis

Factors influencing the drug release from calcium phosphate cements

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bioactive Materials 2022年第1期7卷 341-363页

作者： Marco Fosca Julietta V.rau Vuk Uskokovi Istituto di Struttura della Materia Consiglio Nazionale delle Ricerche(ISM-CNR)Via del Fosso del Cavaliere 10000133RomeItaly I.M.Sechenov First Moscow State Medical University Institute of PharmacyDepartment of AnalyticalPhysical and Colloid ChemistryTrubetskaya 8build.2119991MoscowRussia Advanced Materials and Nanobiotechnology Laboratory TardigradeNano LLCIrvineCA 92604United States

Thanks to their biocompatibility,biodegradability,injectability and self-setting properties,calcium phosphate cements(CPCs)have been the most economical and effective biomaterials of choice for use as bone void *** have also been extensively used as drug delivery carriers owing to their ability to provide for a steady release of various organic molecules aiding the regeneration of defective bone,including primarily antibiotics and growth *** review provides a systematic compilation of studies that reported on the controlled release of drugs from CPCs in the last 25 *** chemical,compositional and microstructural characteristics of these systems through which the control of the release rates and mechanisms could be achieved have been *** doing so,the effects of(i)the chemistry of the matrix,(ii)porosity,(iii)additives,(iv)drug types,(v)drug concentrations,(vi)drug loading methods and(vii)release media have been distinguished and discussed *** specificities of in vivo release of drugs from CPCs have been reviewed,*** the kinetic and mechanistic correlations between the CPC properties and the drug release is a prerequisite for the design of bone void fillers with drug release profiles precisely tailored to the application area and the clinical *** goal of this review has been to shed light on these fundamental correlations.

关键词： Calcium phosphate cements Drug release Release rate Antibiotics release Bone fillers