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Power hardware in the loop validation of fault ride through of VSC hVDC connected offshore wind power plants

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Journal of Modern Power Systems and Clean Energy 2014年第1期2卷 23-29页

作者： Ranjan ShARMA Qiuwei WU Seung Tae ChA Kim h.jensen Tonny W.RASMUSSEN JacobØSTEGAARD Siemens Wind Power A/S Borupvej 167330 BranderDenmark Centre for Electric Power and Energy Department of Electrical EngineeringTechnical University of DenmarkElektrovej 3252800 Kongens LyngbyDenmark

This paper presents the power hardware in the loop(PhIL)validation of a feed forward DC voltage control scheme for the fault ride through(FRT)of voltage source converter(VSC)high voltage DC(hVDC)connected offshore wind power plants(WPPs).In the proposed FRT scheme,the WPP collector network AC voltage is actively controlled by considering both the DC voltage error and the AC current from the WPP AC collector system which ensures fast and robust FRT of the VSC hVDC connected offshore *** PhIL tests were carried out in order to verify the efficacy of the proposed feed forward DC voltage control scheme for enhancing the FRT capability of the VSC hVDC connected *** PhIL test results have demonstrated the proper control coordination between the offshore WPP and the WPP side VSC and the efficient FRT of the VSC hVDC connected WPPs.

关键词： Fault ride through high voltage DC(hVDC) Offshore wind power plant Power hardware in the loop(PhIL) Voltage source converter(VSC)

Rewiring host–microbe interactions and barrier function during gastrointestinal inflammation

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Gastroenterology Report 2022年第1期10卷 3-17页

作者： Sune K.jensen Simone I.Pærregaar Emma P.Brandum Astrid S.Jørgensen Gertrud M.hjortø Benjamin A.h.jensen Department of Biomedical Sciences Faculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark

Organismal survival depends on a well-balanced immune system and maintenance of host–microbe *** finetuned relationship between the gut microbiota and host immunity is constantly challenged by opportunistic bacteria testing the integrity of gastrointestinal(GI)barrier *** dysfunction reduces immunological tolerance towards otherwise innocuous microbes;it is a process that may instigate chronic ***,sustained inflammation further diminishes barrier function,enabling bacterial translocation to extra-intestinal *** translocated,these bacteria stimulate systemic inflammation,thereby compromising organ *** genetic risk alleles associate with barrier dysfunction,environmental stressors are key triggers of GI inflammation and associated breakdown in immune tolerance towards resident gut *** dietary components dictate substrate availability,they also orchestrate microbiota composition and function,including migratory and pro-inflammatory potential,thus holding the capacity to fuel both GI and extra-intestinal ***,Western diet consumption may weaken barrier defenses via curbed Paneth cell function and diminished host-defense peptide *** review focuses on intervenable niches of host–microbe interactions and mucosal immunity with the ambition to provide a framework of plausible strategies to improve barrier function and regain tolerance in the inflamed mucosa via nutritional intervention.

关键词： host-defense peptides mucosal barrier defects IBD nutritional immunology bacterial translocation

Lesson Learnt from the 2004 Tsunami:The Effect of Well Cleaning on Groundwater Quality in Coastal Aquifers in Sri Lanka

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地学前缘 2009年第S1期16卷 18-19页

作者： Meththika Vithanage K.G.Villholth K.Mahatantila P.Engesgaard K.h.jensen Department of Geography and Geology University of Copenhagen Geological Survey of Denmark and Greenland Department of Material Science Interdisciplinary Faculty of Science and EngineeringShimane University

On December 26,2004,the Indian Ocean tsunami waves hit Sri Lanka resulting in the devastation of the coastal aquifers from saltwater *** an attempt to speed up the cleaning process of the contaminated water in wells,large-scale and intensive campaigns went into cleaning and rehabilitating wells through pumping out saline water(physical cleansing). however,it was unclear whether these attempts improved the well-water quality,especially in terms of salinity due to density driven flow and solute transport *** in water quality of a sand aquifer on the east coast of Sri Lanka owing to the December 26,2004 tsunami and

关键词： groundwater quality coastal aquifers Sri Lanka Tsunami

SPS措施对中国蜂蜜出口欧盟的影响——基于面板数据的实证分析

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国际贸易问题 2014年第1期373卷 83-91页

作者：宋海英 jensen h.helen 浙江外国语学院国际工商管理学院美国爱荷华州立大学经济系

近年来,中国蜂蜜对欧盟的出口呈现数量持续增长、金额逐年扩大、单价不断上涨的良好态势,但蕴藏着市场集中度高、年度波动剧烈、贸易稳定性差等潜在风险。并且,欧盟市场对中国蜂蜜出口越来越重要,但欧盟对中国蜂蜜的需求并不紧迫。在此... 详细信息

近年来,中国蜂蜜对欧盟的出口呈现数量持续增长、金额逐年扩大、单价不断上涨的良好态势,但蕴藏着市场集中度高、年度波动剧烈、贸易稳定性差等潜在风险。并且,欧盟市场对中国蜂蜜出口越来越重要,但欧盟对中国蜂蜜的需求并不紧迫。在此背景下,借鉴处理零贸易和异方差的方法模拟引力方程,运用面板数据实证检验SPS措施对中国蜂蜜出口欧盟的影响。结果发现,欧盟发起的SPS措施在短期内显著地阻碍了中国蜂蜜的出口,但远期的影响显著为正。因此,需积极重视并认真评议SPS通报,并在理性看待其贸易效应的基础上,建立联动机制,协同应对SPS措施。

关键词： SPS措施蜂蜜欧盟引力方程

Adjuvant chemotherapy for intrahepatic cholangiocarcinoma: approaching clinical practice consensus?

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hepatobiliary Surgery and Nutrition 2020年第5期9卷 577-586,I0001页

作者： Ariella M.Altman Scott Kizy Schelomo Marmor Jane Y.C.hui Todd M.Tuttle Eric h.jensen Jason W.Denbo Department of Surgery University of MinnesotaMinneapolisMNUSA Department of Gastrointestinal Oncology H.Lee Moffitt Cancer CenterTampaFLUSA

Background:Intrahepatic cholangiocarcinoma(ICC)is rare with limited evidence-based *** retrospective study evaluates the use of chemotherapy in patients with resected ***:The Surveillance Epidemiology and End Results(SEER)program database was used to identify patients with resected *** were stratified by date of diagnosis(2000-2004,2005-2009,2010-2014),T,and N *** logistic regression models identified predictors of chemotherapy ***-Meier and Cox proportional hazard models were used to identify survival ***:One thousand and two hundred twenty-three patients met inclusion *** utilization increased over time(33%to 41%,P≤0.05).Chemotherapy use increased in lymph node(LN)positive patients[32%to 60%in 2010-2014;(P≤0.05)and T3/T4 disease(40%to 60%in 2010-2014;P≤0.01)],but not in patients with LN negative or T1/T2 *** positivity was associated with utilization of chemotherapy in 2005-2009 and *** survival increased from 32 to 41 months(P≤0.05).In LN positive patients,chemotherapy was associated with a decreased hazard ratio of death(P≤0.05)and T3/T4 disease was associated with an increased hazard ratio of death(P≤0.05).Conclusions:Adjuvant chemotherapy use in ICC has *** LN positive or patients with T3/T4 tumors are receiving chemotherapy,which may explain the improvement in overall survival.

关键词： Cholangiocarcinoma adjuvant chemotherapy survival lymph node(LN) surgical procedures

Reversible solid-oxide cells for clean and sustainable energy

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Clean Energy 2019年第3期3卷 175-201页

作者： M.B.Mogensen M.Chen h.L.Frandsen C.Graves J.B.hansen K.V.hansen A.hauch T.Jacobsen S.h.jensen T.L.Skafte X.Sun Department of Energy Conversion and Storage Technical University of Denmark(DTU)Frederiksborgvej 399DK-4000 RoskildeDenmark haldor Topsøe Haldor Topsøes Allé1DK-2800 Lyngby Department of Chemistry Technical University of DenmarkDK-2800 Kgs.LyngbyDenmark DynElectro ApS DK-4621 GadstrupDenmark

This review gives first a brief view of the potential availability of sustainable *** is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the *** to the intermittency of these sources,effective and inexpensive energy-conversion and storage technology is *** for the possible electrolysis application of reversible solid-oxide cells(RSOCs),including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is *** electrochemistry and chemistry of h_(2)O,CO_(2),h_(2),CO,Cnhm(hydrocarbons)and Nh3,including thermodynamics and cell performance,are *** mechanical strength of popular cell supports is outlined,and newly found stronger materials are *** cell-degradation mechanisms,including the effect of common impurities in gases and materials(such as S and Si),plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the *** of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are ***,a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched.

关键词： electrolysis fuel cells solid-oxide cells power-to-fuel electrochemical syngas

Systemic therapy without radiation may be appropriate as neoadjuvant therapy for localized pancreas cancer

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hepatobiliary Surgery and Nutrition 2020年第3期9卷 296-303页

作者： Scott Kizy Ariella M.Altman Keith M.Wirth Schelomo Marmor Jane Y.C.hui Todd M.Tuttle Emil Lou Khalid Amin Jason W.Denbo Eric h.jensen Division of Surgical Oncology Department of SurgeryUniversity of MinnesotaMinneapolisMNUSA Division of hematology and Oncology Department of Internal MedicineUniversity of MinnesotaMinneapolisMNUSA Department of Laboratory Medicine and Pathology University of MinnesotaMinneapolisMNUSA

Background:The utility of neoadjuvant treatment for resectable pancreas cancer is yet to be determined,but has commonly included *** evaluated outcomes in patients with radiographically resectable pancreatic adenocarcinoma treated with neoadjuvant chemotherapy without ***:A retrospective review of patients in our institutional pancreatic cancer registry was performed,which identified 36 patients who received neoadjuvant chemotherapy alone for resectable pancreatic adenocarcinoma between 2012 and ***:Median age at diagnosis was 66.3 *** regimens included gemcitabine(n=17),gemcitabine/nab-paclitaxel(n=8),or 5-FU/leucovorin/irinotecan/oxaliplatin(FOLFIRINOX)(n=11).Surgical resection was performed in 69%of patients(n=25),with an R0 resection rate of 92%(n=23 patients).During chemotherapy,distant disease became apparent in 19%of patients(n=7),while no patients had evidence of local *** rates were similar between chemotherapy regimens(single agent=59%,multiple agent=79%).Median overall survival for all patients who received neoadjuvant chemotherapy was 30.3 and 34.4 months for those who underwent surgical *** was no difference in median survival for patients treated with gemcitabine(31.3 months)or multi-agent chemotherapy(29.7 months).Conclusions:A short course of neoadjuvant chemotherapy without chemoradiation may improve patient selection prior to surgical resection for pancreas ***,local disease progression did not limit surgical resection in this small series.

关键词： Pancreatic adenocarcinoma chemotherapy survival neoadjuvant chemotherapy resection

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猪对饲粮营养需要量研究的最新进展

养猪 1988年第1期 34-39页

作者：程伟 A. h. jensen

最佳的养猪生产率所需饲粮营养素水平受以下几种因素的影响:遗传组成,管理和房舍建筑,饲料加工处理,营养素的生物学效价和营养素间的平衡。遗传瘦肉型猪较脂肪型猪需要较高的饲粮氨基酸浓度;泌乳量高的多产母猪与产仔数少、泌乳量低的... 详细信息

最佳的养猪生产率所需饲粮营养素水平受以下几种因素的影响:遗传组成,管理和房舍建筑,饲料加工处理,营养素的生物学效价和营养素间的平衡。遗传瘦肉型猪较脂肪型猪需要较高的饲粮氨基酸浓度;泌乳量高的多产母猪与产仔数少、泌乳量低的母猪相比,前者需要能量较高的饲粮。

关键词：饲粮大豆粉粗蛋白质公猪赖氨酸粗蛋白二氨基己酸小母猪大豆饼粉

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结构动力反应的变异性

世界地震工程 1993年第3期9卷 57-63页

作者： h. jensen W. D. Iwan 魏星

一、引言为得到结构的动力性能模型,必须估计诸如结构周期、阻尼系数、质量分布等模型参数。由于在对几何形状、边界条件、材料本构特性等模型化时做了大量的假设,因此,即使是由最细致的模型参数估计方法所求得的参数,也含有相当的不确... 详细信息

一、引言为得到结构的动力性能模型,必须估计诸如结构周期、阻尼系数、质量分布等模型参数。由于在对几何形状、边界条件、材料本构特性等模型化时做了大量的假设,因此,即使是由最细致的模型参数估计方法所求得的参数,也含有相当的不确定因素。许多分析中的另一个不确定因素的来源,是对外部荷载的规定,事实上,实际问题中所遇到的许多外部荷载都具有随机的特性。当考虑动荷载时,具有不确定性参数的结构体系的反应通常用模拟法或摄动法确定。模拟法是很有效的方法,但一般说来。

关键词：结构力学动力反应变异性