检索结果-南通市图书馆

MR Angiography and Dynamic Flow Evaluation of the Portal Venous System

ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress

作者： L Kirwan C Brophy RP Collins J Connolly J A finn A Helgadottir A Lscher C Porqeuddu MT Sebastia Eugene Lawler Graduate School of Computing Waterford Institute of TechnologyIreland. UCD School of Mathematical Sciences Ecological and Environmental Modelling Group University College DublinDublin 4Ireland.

＜正＞Introduction Increased emphasis on the multifunctionality of European agriculture has called for a re-investigation of the use of mixtures in productive *** research suggests that increased species diversity in species-poor intensive grassland systems may potentially provide multiple *** present results from the COST 852 multisite Agrodiversity Grassland Experiment,where we test a number of basic questions in agronomic diversity-function *** was hypothesised that（1） mixtures can outperform monocultures both in terms of productivity and weed suppression（2） the diversity benefits will be persistent through time（3） the diversity benefits will be consistent across a wide geographical scale.

关键词： diversity-function evenness persistence of diversity effects

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

MR Angiography and Dynamic Flow Evaluation of the Portal Ven...

中国企业国际直接投资模式选择的影响因素——对跨国并购与合资新建的实证分析

作者： Robert R. Edelman Klaus U. Wentz Heinrich P. Mattle J.Paul finn Colin McArdle

We studied the value of MR angiographic techniques in imaging the portal venous system. Projection angiograms were created by postprocessing a series of two-dimen-sional, flow-compensated gradient-echo images. Plow velocity was determined by a bolus-tracking method with radiofrequency tagging and multiple data readout periods. Each image was acquired during a breath-hold. MR angiography was applied to six normal

关键词：

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

山西财经大学学报 2008年第10期30卷 24-33页

作者：阎大颖南开大学经济学院天津300071

运用制度因素和组织学习的经典理论,根据制度约束和国际经验,就中国企业如何选择跨国并购和合资新建两种国际直接投资模式提出一系列假设,并通过对2000年以来中国企业实施跨国并购和合资新建的样本进行Logistic回归分析,对假设进行了验... 详细信息

运用制度因素和组织学习的经典理论,根据制度约束和国际经验,就中国企业如何选择跨国并购和合资新建两种国际直接投资模式提出一系列假设,并通过对2000年以来中国企业实施跨国并购和合资新建的样本进行Logistic回归分析,对假设进行了验证,得出了中国企业面临的制度约束越强,FDI时越倾向于合资,而企业的国际经验越丰富,FDI时越倾向于并购的结论。同时,还揭示出一系列在制度转型和加速国际化背景下,影响企业选择并购和合资的宏微观层面的特定因素。

关键词：国际直接投资进入模式跨国并购制度约束

维普期刊数据库

A NOISE ROBUST MULTILINGUAL REFERENCE RECOGNISER BASED ON SPEECHdaT（Ⅱ）

在线全文

学校读者我要写书评

暂无评论

A NOISE ROBUST MULTILINGUAL REFERENCE RECOGNISER BASED ON SP...

6～(th) International Conference on Spoken Language Processing

作者： B■rge Lindberg finn Tore Johansen Narada Warakagoda Gunnar Lehtinen Zdravko Kar■ Andrej ■gank Kjell Elenius Giampiero Salvi Center for PersonKommunikation （CPK） Aalborg Denmark Telenor R＆D Kjeller Norway Telenor R＆D Kjeller Norway Swiss Federal Institute of Technology （ETH） Zurich Switzerland University of Maribor Slovenia University of Maribor Slovenia Kungliga Tekniska Hgskolan （KTH） Stockholm Sweden Kungliga Tekniska Hgskolan （KTH） Stockholm Sweden

＜正＞ An important aspect of noise robustness of automatic speech recognisers （ASR） is the proper handling of non-speech acoustic events. The present paper describes further improvements of an already existing reference recogniser towards achieving such kind of robustness. The reference recogniser applied is the COST249 Speechdat reference recogniser, which is a fully automatic, language-independent training procedure for building a phonetic recogniser （http://www. telenor. no/fou/prosjekter/taletek/refrec）. The reference recogniser relies on the HTK toolkit and a Speechdat（Ⅱ） compatible database, and is designed to serve as a refer- ence system in multilingual speech recognition research. The pa- per describes version 0.96 of the reference recogniser which take into account labelled non-speech acoustic events during training and provides robustness against these during testing. Results are presented on small and medium vocabulary recognition for six languages.

关键词：

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

企业创新网络的进化机制分析

科学学研究 2006年第5期24卷 780-786页

作者：王大洲中国科学院研究生院工程与社会研究中心北京100049

结合相关企业案例,基于相关理论进展,初步分析我国企业创新网络进化的初始条件、总体趋向、动力机制、学习机制以及进化过程中的陷阱。在此基础上,尝试性地提出企业创新网络进化的一般模式。并就我国企业创新网络的发展提出几点建设性... 详细信息

结合相关企业案例,基于相关理论进展,初步分析我国企业创新网络进化的初始条件、总体趋向、动力机制、学习机制以及进化过程中的陷阱。在此基础上,尝试性地提出企业创新网络进化的一般模式。并就我国企业创新网络的发展提出几点建设性意见。

关键词：企业创新网络进化机制中国

维普期刊数据库

Natural History, Outcomes and Antibiotic Treatment for Ventilator-Associated Tracheobronchitis in Critical Ill Patients

在线全文

学校读者我要写书评

暂无评论

Modern Research in Inflammation 2016年第1期5卷 1-11页

作者： Yuxiu Lei Jana Hudcova Jawad Rashid Akmal Sarwar Wendy Gillespie Carol finn Marie Goggin Mohamed B. Omran Edward Boroda Donald E. Craven Pulmonary and Critical Care Medicine Lahey Hospital and Medical Center Burlington MA USA Center for Infectious Diseases and Prevention Lahey Clinic Hospital and Medical Center Burlington MA USA Surgical & Medical Critical Care Lahey Hospital and Medical Center Burlington MA USA Tufts University School of Medicine Boston MA USA Lab Medicine—Microbiology Lahey Hospital and Medical Center Burlington MA USA Respiratory Care Lahey Hospital and Medical Center Burlington MA USA

We assessed incidence and outcomes of patients with ventilator-associated respiratory infections (VARI) due to tracheobronchitis (VAT) and pneumonia (VAP), including length of intensive care unit (ICU) stay and ventilator days. We also examined pathogens, rate of progression from VAT to VAP, and impact of antibiotic therapy for VAT. data analysis included 234 patients, 100 patients (43%) had at least moderate (+++) bacterial growth in their semi-quantitative endotracheal aspirate (SQ-ETA) cultures. VAT and VAP were each diagnosed in 34 (15%) patients. Staphylococcus aureus was the most common pathogen isolated and had the highest rate of progression from VAT to VAP. Seven (21%) of the 34 patients were diagnosed with VAT that later progressed to VAP in averaged 3 days. Patients diagnosed with VAT had significantly more ventilator days (9 vs 6, p p days (22 vs 17, p days, longer length of ICU and hospital stay. The time window from VAT to VAP allowed physicians to identify the pathogens and sensitivity profile needed to treat VAT with appropriate antibiotics. data from well-designed studies were needed to assess the impact of early, appropriate antibiotic therapy for VAT, the choice of antibiotics, as well as the duration and route of administration.

关键词： Ventilator-Associated Tracheobronchitis (VAT) and Pneumonia (VAP) Bacterial Pathogens Semi-Quantitative Endotracheal Aspirate (SQ-ETA) Cultures Antibiotic Therapy

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

社基监测

人与生物圈 2016年第1期 148-150页

作者： Henry P.Huntington finn da.ielsen 先义杰

过去数十年来,自然资源的监测已经不再仅仅是科学家的事,社区也会共同参与进来。这种伙伴关系往往被称为＂以社区为基础的监测或观察＂,即＂社基监测＂,其覆盖面丰富而复杂,形式正日益完善,发展势头方兴未艾,在决策和资源管理方面的影... 详细信息

过去数十年来,自然资源的监测已经不再仅仅是科学家的事,社区也会共同参与进来。这种伙伴关系往往被称为＂以社区为基础的监测或观察＂,即＂社基监测＂,其覆盖面丰富而复杂,形式正日益完善,发展势头方兴未艾,在决策和资源管理方面的影响力正越来越大。

关键词：生物多样性伙伴关系资源管理气候变化冰间湖政府间合作 Arctic 外来物种迁徙路线生态知识

维普期刊数据库

Clinical features and determinants of VO_(2peak) in de novo heart transplant recipients

在线全文

学校读者我要写书评

暂无评论

World Journal of Transplantation 2018年第5期8卷 188-197页

作者： Katrine Rolid Arne K Andreassen Marianne Yardley Elisabeth Bj?rkelund Kristjan Karason Julia P Wigh Christian H dall finn Gustafsson Lars Gullestad Kari Nytr?en Department of Cardiology Oslo University Hospital the Norwegian Health Association Faculty of Medicine University of Oslo KG Jebsen Center for Cardiac Research and Center for Heart Failure Research University of Oslo Department of Cardiology Sahlgrenska University Hospital Department of Physical Therapy Sahlgrenska University Hospital Department of Cardiology Bispebjerg University Hospital Department of Cardiology Rigshospitalet University Hospital

AIM To study exercise capacity and determinants of early peak oxygen consumption(VO_(2peak)) in a cohort of de novo heart transplant(HTx) recipients. METHODS To determine possible central(chronotropic responses, cardiopulmonary and hemodynamic function) and peripheral factors(muscular exercise capacity and body composition) predictive of VO_(2peak), a number of different measurements and tests were performed, as follows: Cardiopulmonary exercise testing(CPET) was performed mean 11 wk after surgery in 81 HTx recipients > 18 years and was measured with breath by breath gas exchange on a treadmill or bicycle ergometer. Metabolic/respiratory measures include VO_(2peak) and VE/VCO2 slope. Additional measures included muscle strength testing, bioelectrical impedance analysis, echocardiography, blood sampling and health-related quality of life. Based on the VO_(2peak)(mL/kg per minute) median value, the study population was divided into two groups defined as a low-capacity group and a high-capacity group. Potential predictors were analyzed using multiple regression analysis with VO_(2peak)(L/min) as the dependent *** The mean ± standard deviation(SD) age of the total study population was 49 ± 13 years, and 73% were men. This de novo HTx cohort demonstrated a median VO_(2peak) level of 19.4 mL/kg per min at 11 ± 1.8 wk postHTx. As compared with the high-capacity group, the low-capacity group exercised for a shorter time, had lower maximal ventilation, O_2 pulse, peak heart rate and heart rate reserve, while the VE/VCO_2 slope was higher. The low-capacity group had less muscle strength and muscular exercise capacity in comparison with the highcapacity group. In order of importance, O_2 pulse, heart rate reserve, muscular exercise capacity, body mass index, gender and age accounted for 84% of the variance in VO_(2peak)(L/min). There were no minor or major serious adverse events during the CPET. CONCLUSION Although there is great individual variance among de novo

关键词： Cardiopulmonary exercise testing Early VO2peak De novo heart transplant Health related quality of life Muscle strength

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基础物理的现代化

大庆师范学院学报 1995年第4期 35-40页

作者： Marcelo Alonso ,Edward.J.finn ,张宪忠,付永发克山师专物理系克山师专物理系

本世纪初,普通物理或基础物理被认为很完善,并根据传统和历史上的经验分为力学、热力学、声学(波)、光学、电磁学等五个学科,而且这些学科似乎是相互独立的。直到六十年代,基础物理的分类一直是这样,其中有微小的调整。六十年以后,人们... 详细信息

本世纪初,普通物理或基础物理被认为很完善,并根据传统和历史上的经验分为力学、热力学、声学(波)、光学、电磁学等五个学科,而且这些学科似乎是相互独立的。直到六十年代,基础物理的分类一直是这样,其中有微小的调整。六十年以后,人们才认识到应将头半个世纪中理论和实验的具有深远意义的革命性的进展统一到基础物理中去。因此,一些被称为“现代物理”的新思想被谨慎地加到了基础物理中。在有充分时间的前提下,提一提

关键词：基础物理现代物理概念热力学经典物理思维形式基本粒子玻尔原子

Clarifying sub-genomic positions of QTLs for flowering habit and fruit quality in U.S. strawberry (Fragaria×ananassa) breeding populations using pedigree-based QTL analysis

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2017年第1期4卷 85-93页

作者： Sujeet Verma Jason D Zurn Natalia Salinas Megan M Mathey Beatrice Denoyes James F Hancock Chad E finn Nahla V Bassil Vance M Whitaker IFAS/Department of Horticulture University of FloridaGulf Coast Research and Education Center14625 CR 672Wimauma33598FLUSA USda-ARS National Clonal Germplasm Repository 33447 Peoria RoadCorvallis97333ORUSA Department of Horticulture Oregon State University4017 Agriculture and Life Sciences BuildingCorvallis97331ORUSA Department of Horticulture UMR 1332 Biologie du Fruit et PathologieINRAUniv.BordeauxVillenave d’OrnonF-33140France Michigan State University East Lansing48824MIUSA USda-ARS HCRU3420 NW Orchard AvenueCorvallis97330ORUSA

The cultivated strawberry(Fragaria×ananassa)is consumed worldwide for its flavor and nutritional *** analysis of commercially important traits in strawberry are important for the development of breeding methods and tools for this *** several quantitative trait loci(QTL)have been previously detected for fruit quality and flowering traits using low-density genetic maps,clarity on the sub-genomic locations of these QTLs was *** discoveries in allo-octoploid strawberry genomics led to the development of the IStraw90 single-nucleotide polymorphism(SNP)array,enabling high-density genetic maps and finer resolution QTL *** this study,breeder-specified traits were evaluated in the Eastern(Michigan)and Western(Oregon)United States for a common set of breeding populations during 2 *** QTLs were validated for soluble solids content(SSC),fruit weight(FWT),pH and titratable acidity(TA)using a pedigree-based QTL analysis *** fruit quality,a QTL for SSC on linkage group(LG)6A,a QTL for FWT on LG 2BII,a QTL for pH on LG 4CII and two QTLs for TA on LGs 2A and 5B were *** addition,a large-effect QTL for flowering was detected at the distal end of LG 4A,coinciding with the FaPFRU *** haplotype analysis in the FaPFRU region indicated that the homozygous recessive genotype was highly predictive of seasonal *** probes in the FaPFRU region may help facilitate marker-assisted selection for this trait.

关键词： breeding straw Fragaria