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波罗的海鱼类生殖失调:FiRe项目概要

人类环境杂志 1999年第1期28卷 2-8页

作者： Bengt-ErikBengtsson Cathy Hill ke Bergman ingvar brandt Nils Johansson Carin Magnhagen Anders Sdergren Jan Thulin 傅国斌斯德哥尔摩大学斯德哥尔摩大学动物学斯德哥尔摩大学环境化学系乌普萨拉大学毒理学乌普萨拉大学动物学瑞典农业大学隆德大学水生态毒理学国家渔业协会海洋研究所

瑞典波罗的海鱼类生殖失调项目(简称FiRe项目)的主要研究内容为M74综合症,这种综合症能引起从波罗的海游到江河产卵的大西洋鲑(salmo salar)鱼苗的大量死亡。为期4年的研究项目结束之际,M74综合症的病因还是一个未知数,但其病症已经详... 详细信息

瑞典波罗的海鱼类生殖失调项目(简称FiRe项目)的主要研究内容为M74综合症,这种综合症能引起从波罗的海游到江河产卵的大西洋鲑(salmo salar)鱼苗的大量死亡。为期4年的研究项目结束之际,M74综合症的病因还是一个未知数,但其病症已经详细描述,且发现硫胺素(维生素B_1)可以治疗患病的鱼苗。M74综合症与北美五大湖鲑科鱼的早期死亡综合症(EMS)有极其相似之处。M74和EMS综合症都表现为鱼苗和鱼仔群与食物的硫胺素缺乏有关。诸多因素可能与M74有关,例如,波罗的海鲑鱼的食物、被捕食鱼体内硫胺素或硫胺酶(thiaminase)的含量(硫胺素酶为一种降解硫胺素的酶)、波罗的海中食物链的生态变化、污染物等。为数不多自然产卵的野生波罗的海鲑正在面临灭绝的危险,因为没有一个可行的办法来弥补其硫胺素从而避免M74和波罗的海渔业受到的大量捕捞的压力。波罗的海鳟(***)亦存在着相似的生殖失调问题,虽然其频率比鲑鱼要轻一些。M74综合症对波罗的海鳕(Gadus morhua)无太大影响。鳕鱼生殖失调主要与深水产卵场的贫氧和对大型鳕鱼的过度捕捞有关。

关键词：鲑鱼生殖失调 FiRe项目鱼病 M74综合症

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靛蓝在虹鳟鱼体内定位分布的放射自显影研究

天津科技 2015年第9期42卷 83-86,90页

作者：高锴何若竹檀翠玲罗彦鹤闫佩 Maria E.Jonsson ingvar brandt 周启星天津市环境保护科学研究院天津300191 南开大学环境科学与工程学院天津300071 瑞典乌普萨拉大学进化生物学中心环境毒理学系瑞典se75236

摘要：以虹鳟鱼为实验鱼类，通过水浴实验，以CYP1诱导剂（PCB126）为研究对象，分析了靛蓝在鱼全身代谢的动力学情况。通过放射自显影方法并利用放射性^14C-标记的靛蓝（18nM）进行水浴暴露实验，结果表明：实验开始20min后靛蓝消化于... 详细信息

摘要：以虹鳟鱼为实验鱼类，通过水浴实验，以CYP1诱导剂（PCB126）为研究对象，分析了靛蓝在鱼全身代谢的动力学情况。通过放射自显影方法并利用放射性^14C-标记的靛蓝（18nM）进行水浴暴露实验，结果表明：实验开始20min后靛蓝消化于胆液中；在随后的实验中（暴露3—24h），在胆汁的排泄途径中发现高浓度的标记物。在鱼鳃中也存在高浓度的标记物；换水后，其放射性浓度逐渐降低。同时观察到嗅觉器官中有选择性的标记，肾脏和肝脏中吸收的放射性物质浓度低于鳃。比较暴露于二甲基亚砜（DMSO）和CYP1诱导物PCB126的鱼。其^14C-靛蓝总体布局模式相似。CYP1抑制剂玫瑰树碱可以阻拦^14C-靛蓝在鱼鳃中的积蓄。

关键词：靛蓝放射自显影虹鳟鱼

Moisture Absorption, Mass Loss and Evaporative Resistance of Clothing in Transient Condition

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Journal of Donghua University(English Edition) 2006年第5期23卷 54-58页

作者： Chuansi Gao ingvar Holmr The Thermal Environment Laboratory Division of Ergonomics Department of Design Sciences Faculty of Engineering Lund University Box 118 22100 Lund Sweden

The water vapour resistance of clothing ensembles is not as commonly determined as dry thermal insulation. The measurement techniques are more complicated and the measurement values differ among laboratories. Due to complicated moisture transfer process through clothing ensemble, the moisture absorbed and evaporated varies in transient and steady state phases depending on properties, thickness of clothing, and environmental conditions. The purpose of this study was to measure moisture gain inside hygroscopic underwear, and hydrophobic and permeable outer wear as a function of time, to investigate mass loss from ＂skin＂ as well as from the manikin, to quantify evaporative heat loss and total heat loss from the manikin, and to determine water vaponr resistance of clothing. Manikin Tore was used by wearing wet ＂skin＂ to simulate sweating condition. Moisture content in the inner garment gain shows an exponential relation against time. Moisture in the outer permeable layer shows little gain. On the contrary, mass loss directly from the wet skin decreases exponentially. The mass loss from the manikin is relatively stable throughout three test phases. The evaporative heat loss is about 2/3 of the total heat loss from the sweating manikin. While measuring the evaporative resistance of clothing ensembles with hygroscopic inner garment and permeable outer garment, unlike to measure ensembles with impermeable outer layer, one hour measurement time is enough to get relatively stable results. The variation between the 1^rt hour and the 3^nd hour is less than 5%. The length of transient period and measurement time is dependent on the permeability, thickness of clothing ensembles and environmental conditions.

关键词： moisture absorption mass loss evaporative resistance transient condition clothing ensemble.

PRINCIPLES OF HUMAN PAIN NEUROIMAGING WITH PET

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神经解剖学杂志 2001年第B7期17卷 53-55页

作者： Martin ingvar Cognitive Neurophysiology Karolinska Hospital 171 76 Stockholm MD PhD

The central mechanisms for pain processing are slowly being unraveled by a multitude of studies. Functional neuroimaging (FNI) is one methodology that has been of help in this. The nature of the step from the sensory registration of a painful event to how the experience is represented is still largely unknown. From a consciousness perspective it is a fundamental difference between representing the linear process of

关键词：人体疼痛急性慢性 PET 神经成像拍摄原则

Effects of Carbon Content and Solidification Rate on the Thermal Conductivity of Grey Cast Iron

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Tsinghua Science and Technology 2008年第2期13卷 170-176页

作者： Daniel Holmgren Attila Diószegi ingvar L. Svensson Department of Mechanical Engineering and Component Technology Jnkping University

The thermal conductivity/diffusivity of pearlitic grey irons with various carbon contents was investigated by the laser flash method. The materials were cast in controlled thermal environments producing three dissimilar cooling rates. The cooling rates together with the carbon content largely influence the thermal conductivity of grey iron. Linear relationships exist between the thermal conductivity and the carbon content, the carbon equivalent, and the fraction of the former primary solidified austenite transformed into pearlite. The results show that the optimal thermal transport properties are obtained at medium cooling rates. Equations are given for the thermal conductivity of pearlite, solidified as pre-eutectic austenite, and the eutectic of grey iron. The thermal conductivity of pearlitic grey iron is modelled at both room temperature and elevated temperatures with good accuracy.

关键词： grey iron thermal conductivity thermal diffusivity carbon content carbon equivalent color etching graphite morphology eutectic cell size

Comparison of Testing Clothing Thermal Resistance on 2 Thermal Manikins

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Journal of Donghua University(English Edition) 2003年第1期20卷 115-119页

作者：谌玉红姜志华吴志孝 ingvar Holmer Kalev Kuklane The Quartermaster Research Institute of the General Logistics Department (ORI) Beijing 100088 The National Institute for Working Life (NIWL) Sweden

The paper compares clothing thermal resistance of the same ensemble tested by different thermal manikins in different laboratories. It also examines the consistence of the two groups of total thermal resistance by Paired-Sample T Test method, which proves that there is no remarkable difference in testing results under the same experiment method and requirement. It is of great significance in promoting the application of thermal manikin testing technology and academic exchange among different institutes.

关键词： thermal manikin thermal resistance comparison

Absorption of light in InP nanowire arrays

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Nano Research 2014年第6期7卷 816-823页

作者： Nicklas Anttu Alireza Abrand Damir Asoli Magnus Heurlin ingvar Aberg Lars Samuelson Magnus Borgstrom Division of Solid State Physics and the Nanometer Structure Consortium at Lund University (nmC@LU) Lund University Box 118 Lund 22100 Sweden Sol Voltaics AB Ideon Science Park Scheelevagen 17 Lund 22370 Sweden

An understanding of the absorption of light is essential for efficient photovoltaic and photodetection applications with III-V nanowire arrays. Here, we correlate experiments with modeling and verify experimentally the predicted absorption of light in InP nanowire arrays for varying nanowire diameter and length. We find that 2,000 nm long nanowires in a pitch of 400 nm can absorb 94% of the incident light with energy above the band gap and, as a consequence, light which in a simple ray-optics description would be travelling between the nanowires can be efficiently absorbed by the nanowires. Our measurements demonstrate that the absorption for long nanowires is limited by insertion reflection losses when light is coupled from the air top-region into the array. These reflection losses can be reduced by introducing a smaller diameter to the nanowire-part closest to the air top-region. For nanowire arrays with such a nanowire morphology modulation, we find that the absorptance increases monotonously with increasing diameter of the rest of the nanowire.

关键词： indium phosphide semiconductor nanowire absorption of light

Effects of carbon content and solidification rate on thermal conductivity of grey cast iron

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China Foundry 2007年第3期4卷 210-214页

作者： Daniel Holmgren Attila Diószegi ingvar L.Svensson Jnkping University Dept. of Mechanical Engineering/Component TechnologyJnkpingSE-551 11Sweden

The thermal conductivity or diffusivity of pearlitic grey irons with various carbon contents is investigated by the laser flash method. The materials are cast in controlled thermal environments and produced in three dissimilar cooling rates. The cooling rate together with the carbon content largely influence the thermal conductivity of grey iron. Linear relationships exist between the thermal conductivity and the carbon content,the carbon equivalent and the fraction of former primary solidified austenite transformed into pearlite. The work shows that optimal thermal transport properties are obtained at medium cooling rates. Equations describing the thermal conductivity of pearlite,solidified as pre-eutectic austenite,and the eutectic of grey iron are derived. The thermal conductivity of pearlitic grey iron is modeled at both room temperature and elevated temperature with good accuracy.

关键词： grey iron thermal conductivity thermal diffusivity carbon content carbon equivalent colour etching graphite morphology eutectic cell size primary austenite cooling rate

纳米碳纤维负载钯催化剂在Heck反应中的应用——载体相互作用的影响(英文)

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催化学报 2008年第11期29卷 1145-1151页

作者：朱俊赵铁均 ingvar KVANDE 陈德周兴贵袁渭康华东理工大学化学工程联合国家重点实验室上海200237 挪威科技大学化学工程系挪威特隆赫姆7491

使用多元醇还原法制备了均匀分散的钯纳米颗粒.将钯纳米颗粒负载于板式、鱼骨式和管式纳米碳纤维,得到稳定、可重复使用的非均相催化剂.实验结果表明,钯纳米胶粒同载体之间的电位差对钯在载体上的负载量、粒子大小以及Heck反应中钯的溶... 详细信息

使用多元醇还原法制备了均匀分散的钯纳米颗粒.将钯纳米颗粒负载于板式、鱼骨式和管式纳米碳纤维,得到稳定、可重复使用的非均相催化剂.实验结果表明,钯纳米胶粒同载体之间的电位差对钯在载体上的负载量、粒子大小以及Heck反应中钯的溶失量有很大的影响.在制备过程中,增加钯纳米胶粒同纳米碳纤维表面的电位差能够大大降低钯在Heck反应中的流失.催化剂的反应活性随钯粒子的增大而降低.

关键词：纳米碳纤维钯等电点 Heck反应非均相催化剂