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Axial force measurement for esophageal function testing

World Journal of Gastroenterology 2009年第2期15卷 139-143页

作者： Flemming h Gravesen Peter Funch-jensen hans Gregersen Asbjφrn Mohr Drewes Mech-Sense Department of Gastroenterology Aalborg Hospital Aalborg Denmark Center for Sensory-Motor Interaction (SMI) Department of Health Science and Technology Aalborg University DK-9000 Aalborg Denmark Department of Surgical Gastroenterology L rhus University Hospital rhus Denmark

The esophagus serves to transport food and fluid from the pharynx to the stomach. Manometry has been the "golden standard" for the diagnosis of esophageal motility diseases for many decades. hence, esophageal function is normally evaluated by means of manometry even though it reflects the squeeze force (force in radial direction) whereas the bolus moves along the length of esophagus in a distal direction. Force measurements in the longitudinal (axial) direction provide a more direct measure of esophageal transport function. The technique used to record axial force has developed from external force transducers over in-vivo strain gauges of various sizes to electrical impedance based measurements. The amplitude and duration of the axial force has been shown to be as reliable as manometry. Normal, as well as abnormal, manometric recordings occur with normal bolus transit, which have been documented using imaging modalities such as radiography and scintigraphy. This inconsistency using manometry has also been documented by axial force recordings. This underlines the lack of information when diagnostics are based on manometry alone. Increasing the volume of a bag mounted on a probe with combined axial force and manometry recordings showed that axial force amplitude increased by 130% in contrast to an increase of 30% using manometry. Using axial force in combination with manometry provides a more complete picture of esophageal motility, and the current paper outlines the advantages of using this method.

关键词： Axial force Traction force Manometry Motility Peristalsis Esophageal function

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职业性手部湿疹患者人群的生活质量和抑郁症

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世界核心医学期刊文摘（皮肤病学分册） 2006年第5期2卷 47-47页

作者： Cvetkovski R.S. Zachariae R. jensen h. 罗素菊 haderslevgade 38 4.th 1671 Copenhagen V. Denmark Dr.

Occupational hand eczema (OhE) is the most frequently recognized occupational disease in Denmark, and despite governmental attempts to reduce exposure to harmful occupational allergens, the number of new cases has remained almost unchanged since the mid-1990s. Some studies have indicated that OhE has considerable impact on quality of life (QoL) and may lead to depression. The aims of the study were to determine risk factors for low QoL, the frequency and severity of depression among OhE patients and changes in QoL and depression after 12 months of follow up. The study population, 758 patients, comprised all new recognized cases from the Danish National Board of Industrial Injuries Registry between October 2001 and November 2002. All patients received a questionnaire to determine impairment of QoL and depressive symptoms. A similar follow-up questionnaire was posted after 1 year. The response rate was 82% at baseline and 91% at follow up. The mean Dermatology Life Quality Index total scorewas 5.5 for all patients and 7.8 for severe OhE cases. Severe OhE cases and lower socioeconomic statuswere independently associated with low QoL. The prevalence of moderate-to-severe depression was 9% . Only minor changes in QoL and depressive symptomswere found after 12 months of follow up.

关键词：手部湿疹郁症生活质量过敏源有害性新发患者新发病例数丹麦国社会经济地位应答率

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酿酒酵母的衍生物对断奶仔猪腹泻的影响

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饲料博览 2014年第2期24卷 52-52页

作者： jensen K h Damgaard B M Andresen L O JΦrgensen E Carstensen L

试验旨在探讨在断奶仔猪的教槽料或母猪日粮中添加啤酒酵母所产的酵母衍生物（YD）对仔猪断奶后腹泻（PWD）和生长性能的影响。30头母猪及其仔猪随机分为3个处理组，分别为PSP组（断奶前l周在母猪日粮中添加YD1．5g·kg^-1仔猪2周龄开... 详细信息

试验旨在探讨在断奶仔猪的教槽料或母猪日粮中添加啤酒酵母所产的酵母衍生物（YD）对仔猪断奶后腹泻（PWD）和生长性能的影响。30头母猪及其仔猪随机分为3个处理组，分别为PSP组（断奶前l周在母猪日粮中添加YD1．5g·kg^-1仔猪2周龄开始向其教槽料中添加YD3和2g·kg^-1直到断奶后2周和5周结束）、PP组（仔猪教槽料中添加YD3和***^-1）和C组（对照组，不添加YD）。在断奶后（4周龄）1～3d，对各组仔猪进行大肠杆菌侵染试验（对照组采用plaeebo对照试剂），测定各组仔猪的生长性能。对仔猪进行粪便一致性评分（FCS）发现，其受断奶、YD处理以及大肠杆菌处理之间的相互作用。对照组仔猪的FCS值低于大肠杆菌处理组和PSP、PP处理组仔猪。在断奶后2-6d，与对照组相比，PSP和P1）处理组仔猪出现腹泻的风险较低（FCS〉3，P=0．014，P=0．001），placebo和大肠杆菌处理的PP组的仔猪也取得了相同的结果（P=0．010，P=0．038），而PSP处理组的仔猪仅与大肠杆菌处理的对照组仔猪之间存在差异（P=0．030），大肠杆菌处理的PP组仔猪粪便中的溶血性大肠杆菌显著低于对照组（尸=0．026）。placebo处理的PP组仔猪首次出现腹泻的时间较PSP和对照组显著推迟（P=0．048andP=0．017）。YD对仔猪和母猪的特异性抗体滴定度无显著影响。在断奶后的3周，PP组的仔猪腹泻发生的几率低于PSP组和对照组（P=0．078）。各组间仔猪的平均日增重无显著差异，但PSP组仔猪在断奶后0-5周的肉料比（G：F）极显著提高（P〈0．01）。总之，在仔猪断奶前2周和断奶后的教槽料中添加YD可降低4周龄断奶仔猪惠仔猪腹泻的可能性向母猪日粮中添加YD也可能会降低大肠杆菌的致病性，但是与对照组相比会增加肉料比。，

关键词：酿酒醇母衍生物断奶仔猪腹泻

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多模态MR大脑铁沉积成像在注意缺失型多动症病人中的运用:能否作为一种精神兴奋剂疗效的无创性生物标记?

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国际医学放射学杂志 2014年第5期 486-486页

作者： V.Adisetiyo J.h.jensen A.Tabesh R.L.Deardorff E.Fieremans A.Di Martino 林园凯 Center for Biomedical Imaging Medical University of South Carolina68 President StBioengineering Building2nd FloorCharlestonSC 29452

摘要目的全面评估注意缺失型多动症病人(ADhD)和健康对照的大脑铁沉积水平,同时考虑精神兴奋剂用药史。材料与方法该前瞻性研究通过审查委员会批准,并得到每

关键词：多动症多动综合征神经系统疾病脑铁沉积 ADhD 病人无创性缺失型 MR

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Multifunction Zno/carbon hybrid nanofiber mats for organic dyes treatment via photocatalysis with enhanced solar-driven evaporation

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Frontiers of Materials Science 2022年第4期16卷 93-104页

作者： Wenxin WANG Yang ChEN Ning WANG Zhiqiang DU Martin jensen Zihan AN Xianfeng LI State Key Laboratory of Separation Membranes and Membrane Processes Tianjin Municipal Key Lab of Advanced Energy Storage Material and DevicesSchool of Material Science and EngineeringTiangong UniversityTianjin 300387China Department of Chemistry and Bioscience Aalborg UniversityDK-9220 AalborgDenmark The Institute of Seawater Desalination and Multipurpose Utilization(MNR) Tianjin 300192China

ZnO-based photocatalytic materials have received widespread attention due to their usefulness than other photocatalytic materials in organic dye wastewater ***,its photocatalytic efficiency and surface stability limit further *** paper uses a one-step carbonization method to prepare multifunctional ZnO/carbon hybrid nanofiber *** carbonization creates aπ-conjugated carbonaceous structure of the mats,which prolongs the electron recovery time of ZnO nanoparticles to yield improved photocatalytic ***,the carbonization reduces the fiber diameter of the carbon hybrid nanofiber mats,which quadruples the specific surface area to yield enhanced adsorption and photocatalytic *** the same time,the prepared nanofiber mats can increase the evaporation rate of water under solar irradiation to a level of 1.46 kg·m^(-2)·h^(-1)with an efficiency of 91.9%.Thus,the nanofiber mats allow the facile incorporation of photocatalysts to clean contaminated water through adsorption,photodegradation,and interfacial heat-assisted distillation mechanisms.

关键词： hybrid nanofiber mats zinc oxide photocatalysis solar-driven evaporation

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采用波纹管测试水泥基材料早期自收缩方法

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硅酸盐学报 2009年第1期37卷 39-45页

作者：田倩 jensen Ole Mejlhede 丹麦科技大学江苏省建筑科学研究院有限公司南京210008

用特制的波纹管模具,可以在塑性阶段以水平方向测长度的方式将体积应变转换为长度应变来测量,不仅能实现自浇注成型开始对水泥基材料自收缩的连续监测,而且可以有效避免重力、温度变化以及模具约束对于测试结果的影响。介绍了波纹管测... 详细信息

用特制的波纹管模具,可以在塑性阶段以水平方向测长度的方式将体积应变转换为长度应变来测量,不仅能实现自浇注成型开始对水泥基材料自收缩的连续监测,而且可以有效避免重力、温度变化以及模具约束对于测试结果的影响。介绍了波纹管测长度的原理,研究了波纹管的材质、尺寸和内部空气对于测试结果的影响。结果表明:测试结果受到波纹管材质、尺寸和成型引入空气的影响;随着波纹管内试件的刚度不断增加,其影响程度也随之减小,到终凝10 h后这种影响可以忽略不计。

关键词：混凝土自收缩波纹管测试方法

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Clinical outcome after surgery on schwannomas in the extremities

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World Journal of Orthopedics 2021年第10期12卷 760-767页

作者： Andreas Saine Granlund Michala Skovlund Sørensen Claus Lindkær jensen Birthe højlund Bech Michael Mørk Petersen Musculoskeletal Tumor Section Department of Orthopedic SurgeryCopenhagen University HospitalRigshospitaletCopenhagen 2100Denmark Department of Orthopedic Surgery Copenhagen University HospitalCopenhagen 2200Denmark Musculoskeletal Tumor Section Department of Orthopedic SurgeryUniversity of CopenhagenCopenhagen 2100Denmark Department of Radiology RigshospitaletUniversity of CopenhagenCopenhagen 2100Denmark

BACKGROUND Schwannoma is a benign,encapsulated and slowly growing tumor originating from Schwann cells and is rarely seen in the peripheral nerve *** symptoms are soreness,radiating pain and sensory loss combined with a soft tissue *** To evaluate pre-and postoperative symptoms in patients operated for schwannomas in the extremities and investigate the rate of malignant *** In this single center retrospective study design,all patients who had surgery for a benign schwannoma in the extremities from May 1997 to January 2018 were *** location of the tumor in the extremities was divided into five groups;forearm,arm,shoulder,thigh and leg including *** locations of the tumor in the nerves were also categorized as either;proximal,distal,minor or major *** the pre-and postoperative clinical evaluation,symptoms were classified as paresthesia,local pain,radiating pain,swelling,impairment of mobility/strength and asymptomatic tumors that were found incidentally(with magnetic resonance imaging).The patients were evaluated after surgery using the following categories:Asymptomatic or symptomatic patients(radiating and/or local pain)and those with *** follow up period was from the time of surgery until last examination of the particular *** logistic regression analysis was performed to identify independent prognostic factors for postoperative significant symptoms at *** We identified 858 cases from the institutional pathology *** excluded cases with duplicate diagnoses(n=407),pathology not including schwannomas(n=157),lesions involving the torso,spine and neck(n=150)leaving 144 patients for further *** this group 99 patients underwent surgery and there were five complications recorded:2 infections(treated with antibiotics)and 3 nerve palsies(2 involving the radial nerve and one involving the median nerve)that recovered *** the end of follow-up,1.4

关键词： Schwannoma Extremities Surgery Removal Symptoms Outcome

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Generation of time-varying orbital angular momentum beams with space-time-coding digital metasurface

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Advanced Photonics 2023年第3期5卷 92-100页

作者： Jingxin Zhang Peixing Li Ray C.C.Cheung Alex M.h.Wong jensen Li The hong Kong University of Science and Technology Department of PhysicsHong KongChina City University of hong Kong Department of Electrical EngineeringHong KongChina City University of hong Kong State Key Laboratory of Terahertz and Millimeter WavesHong KongChina

The recently proposed extreme-ultraviolet beams with time-varying orbital angular momentum(OAM)realized by high-harmonic generation provide extraordinary tools for quantum excitation control and particle ***,such an approach is not easily scalable to other frequency *** design a space-time-coding digital metasurface operating in the microwave regime to experimentally generate time-varying OAM *** to the flexible programmability of the metasurface,a higher-order twist in the envelope wavefront structure of time-varying OAM beams can be further designed as an additional degree of *** time-varying OAM field patterns are dynamically mapped by developing a two-probe measurement *** approach in combining the programmability of space-time-coding digital metasurfaces and the two-probe measurement technique provides a versatile platform for generating and observing time-varying OAM and other spatiotemporal excitations in *** proposed time-varying OAM beams have application potentials in particle manipulation,time-division multiplexing,and information encryption.

关键词： time-varying orbital angular momentum digital-coding metasurfaces wavefront structure

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柔性直流输电并网风电厂的低电压穿越能力改进(英文)

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电力系统自动化 2015年第3期39卷 14-22页

作者： Ranjan ShARMA Qiuwei WU Seung Tae ChA Kim hφj jensen Tony Wederberg RASMUSSEN Jacob ΦSTERGAARD Siemens Wind Power A/S Center for Electric Power and Energy Department of Electrical EngineeringTechnical University

To achieve active control of the AC voltage magnitude of wind power plant(WPP)collector network and improve the fault ride-through(FRT)capability,an FRT scheme based on feed forward DC voltage control is presented for voltage source converter-high voltage direct current(VSC-hVDC)connected offshore *** steady state operation,an open loop AC voltage control is implemented at the WPP-side VSC of the hVDC system so that any possible control interactions between WPP-side VSC and VSC of wind turbine are *** during any grid fault,a dynamic AC voltage reference is made according to both the DC voltage error and AC active current from the WPP collector system,thus ensuring fast and robust FRT of the VSC-hVDC-connected offshore *** the unbalanced fault condition in the host power system,the resulting oscillatory DC voltage is directly used in the VSC AC voltage controller at the WPP side so that the WPP collector system voltage also reflects the unbalance in the main *** domain simulations are performed to verify the efficacy of the FRT scheme based on the proposed feed forward DC voltage *** results show satisfactory FRT responses of the VSC-hVDC-connected offshore WPP under balanced and unbalanced faults in the host power system,as is shown under a serious fault in the WPP collector network.

关键词：电网故障连接海上能力直流输电系统电压控制器不平衡故障电厂

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Magnesium borohydride Mg(Bh_(4))_(2) for energy applications:A review

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Journal of Materials Science & Technology 2023年第30期161卷 170-179页

作者： Xiao Li Yigang Yan Torben R.jensen Yaroslav Filinchuk Iurii Dovgaliuk Dmitry Chernyshov Liqing he Yongtao Li hai-Wen Li hefei General Machinery Research Institute Hefei 230031China Institute of New Energy and Low-Carbon Technology Sichuan UniversityChengdu 610207China Department of Chemistry and Interdisciplinary Nanoscience Center Aarhus UniversityLangelandsgade 140Aarhus C 8000Denmark Institute of Condensed Matter and Nanosciences UniversitéCatholique de LouvainPlace L.Pasteur 1B-1348Louvain-la-NeuveBelgium Institut des Matériaux Poreux de Paris UMR 8004 CNRSEcole Normale SupérieureEcole Supérieure de Physique et de Chimie Industrielles de ParisPSL UniversitéParis 75005France Swiss-Norwegian Beamlines at the European Synchrotron Radiation Facility 71 Avenue des MartyrsGrenoble 38000France School of Materials Science and Engineering Anhui University of TechnologyMaanshan 243002China

Mg(Bh_(4))_(2) with several polymorphs,known as a high capacity(14.9 wt.%)hydrogen storage material,has become more intriguing due to the recently found new functions of gas physisorption and ionic *** we review the state-of-the-art on the energy related functions of Mg(Bh_(4))_(2).Mg(Bh_(4))_(2) tends to form the stable intermediate[B_(12)h_(12)]^(2−) when the dehydrogenation temperature is above 400℃,the strong B-B bonding of which makes the rehydrogenation condition very *** contrast,lower borane intermediate[B_(3)h_(8)]2−facilitates the rehydrogenation even at a mild condition of 100℃,suggesting the possibility of reversible hydrogen storage in Mg(Bh_(4))_(2).The porous polymorphγ-Mg(Bh_(4))_(2) shows attrac-tive gas adsorption properties in view of its unique hydridic surface and pore shape,and potentially can be applied in hydrogen adsorption and Kr/Xe selectivity.A new diffraction-based adsorption methodology was developed to characterize adsorption thermodynamics and kinetics ofγ-Mg(Bh_(4))_(2),providing a novel idea for the characterization of crystalline porous ***,the potential of Mg(Bh_(4))_(2) as an electrolyte is discussed in the last ***(Bh_(4))_(2)·ThF/DME acts as a liquid electrolyte in Mg-batteries,while anion substituted or neutral molecule derivatives of Mg(Bh_(4))_(2) can act as solid-state electrolyte.

关键词： hydride hydrogen storage Gas adsorption hydrogen adsorption Electrolyte

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