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Phase-Matching and Parametric Conversion for the Mid-Infrared in As2S3Waveguides

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Optics and Photonics Journal 2012年第4期2卷 260-264页

作者： Qi Chen Xin Wang Christi madsen Department of Electrical & Computer Engineering Texas A&M University College Station Texas USA

We illustrate two As2S3 waveguide designs for four-wave mixing, which can generate 3.03 μm mid-infrared light from a 1.55 μm near-infrared signal source and a 2.05 μm pump source. Through simulations, we verify that four-wave mixing phase-matching efficiencies up to 100% can be achieved using dispersion engineering to maintain the dispersion at 2.05 μm near to zero. The best conversion efficiency is –10 dB. When the waveguide length is 1 cm, the parametric conversion bandwidth is 1525 nm. We also evaluated the shift of 100% phase-matching efficiency wavelengths based upon fabrication tolerances.

关键词： As2S3 Mid-Infrared Phase-Matching Four-Wave Mixing

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淡水螺的生物学防制方法

国外医学（寄生虫病分册） 1991年第2期18卷 65-67页

作者： H. madsen 向选东

由于新药和新的诊断技术的出现,控制血吸虫病的重点已从控制螺类转到治疗患者。然而,化疗并不能防止再感染,仍须降低螺的密度。已证明用灭螺药杀螺无效、昂贵,且对环境造成不良影响。迄今,人们对血吸虫中间宿主的天敌与寄生物知之甚少,... 详细信息

由于新药和新的诊断技术的出现,控制血吸虫病的重点已从控制螺类转到治疗患者。然而,化疗并不能防止再感染,仍须降低螺的密度。已证明用灭螺药杀螺无效、昂贵,且对环境造成不良影响。迄今,人们对血吸虫中间宿主的天敌与寄生物知之甚少,而它们可能成为螺的生物防制工具。目前。

关键词：淡水螺生物防制血吸虫中间宿主

The Influence of Biocomposite Processing and Composition on Natural Fiber Length, Dispersion and Orientation

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材料科学与工程（中英文A版） 2011年第2X期1卷 190-198页

作者： Peltola Heidi madsen Bo Joffe Roberts Naittinen Kalle Vtt Technical Research Centre of Finland 33101 Tampere Finland Technical University of Denmark Riso National Laboratory for Sustainable Energy Materials Research Division Roskilde DK-4000 Denmark Department of Applied Physics and Mechanical Engineering Luleh University of Technology Luleh SE-97187 Sweden

Pollen Assemblage Features of Modern Water Samples from the Shiyang River Drainage, Arid Region of China

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Acta Botanica Sinica 2002年第3期44卷 367-372页

作者：朱艳陈发虎程波张家武 David B.madsen 兰州大学西部环境教育部重点实验室西北师范大学地理与环境科学学院兰州730070 兰州大学干旱农业国家重点实验室兰州730000 Uath Geological Survey SaltLake CityUath 84114USA

Pollen analysis of 30 modem water samples from the Shivang River, an internal river system located between the Tengger and Badain Jaran deserts, Northwest China was carried out to examine the river's capacity to carry pollen and spores, and to assess the contribution of the water-borne pollen to pollen assemblages in lake sediments at the end of the river system. Results indicate the pollen assemblages in water samples consist of both local and upland pollen. Percentages of upland pollen reach 30% - 60%, and pollen assemblages in water samples do not indicate the nature of local vegetation at the sampling sites. Fluvial currents have the capacity to transport large quantities of pollen long distances, and the contribution of this fluvial transported pollen is relatively high, For example, percentages of Picea Dietr. pollen in water samples at sampling sites 130 km and 145 km away from Picea forests reach 16.5% and 7.7%, respectively. Fluvial pollen transport occurs primarily during flood periods, and pollen concentrations from the flood samples are 17.1 - 12.5 times those from normal fluvial flow. Reservoirs affect pollen transportation since pollen is deposited at reservoir inlets and pollen concentrations are much reduced at reservoir outlets. Human activity can thus change natural features of pollen transportation and deposition. The main factors influencing pollen concentrations and assemblages are sampling time, sampling location, and rainfall intensity.

关键词： pollen analysis modern river water Shiyang River arid region of China

Engineering drawing & design / 4th ed.

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A Strategy for Development of Realistic Mathematical Models of Whole-Body Metabolism

2007年

作者： madsen David A.

来源：畅想之星图书光盘版（南... 评论

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Open Journal of Applied Sciences 2012年第1期2卷 11-27页

作者： Mads F. madsen Sune Dano Bjorn Quistorff Department of Biomedical Sciences University of Copenhagen Copenhagen Denmark

When realistic mathematical models of whole body metabolism eventually become available, they are likely to add entirely new dimensions to the understanding of the integrated physiological function of the organism, in particular the mechanisms governing the regulation of transitions between different physiological states, like fed-fasted, exercise-rest and normal-diseased. So far the strategy for whole body modelling has primarily been a bottom-up approach where the central problem is an apparently insurmountable barrier of complexity involved in defining and optimising the huge number of parameters. Here we follow a top-down strategy and present a complete mathematical framework for realistic whole body model development. The approach proposed is modular and hierarchical and whole body metabolism is taken as the top level. Next are the organs, where the sum of the contributions from the individual organs must equal the top level metabolism. This hierarchy can be extended to lower levels of organisation, i.e. clusters of cells, individual cells, organelle and individual pathways. Exploiting this hierarchy, metabolism at each level forms an absolute constraint on the contributions from lower level. Importantly, these constraints can in many ways be defined experimentally through mass balance and flux data. Furthermore, the constrained approach allows the lower level models to be developed independently and subsequently adapted to the whole body model. The paper describes the process of whole body modelling in practical terms, centred on a mathematical framework, devised to allow whole-body models of any complexity to be developed. Furthermore, an example of sub-model incorporation in the whole-body framework is illustrated by adapting an existing erythrocyte model to the whole body constraints. Finally, we illustrate the operation of the system by including two sets of whole-body data from humans, reflecting two different physiological states.

关键词： Whole Body Metabolic Modelling Organ Interaction Mathematical Modelling

Analysis of As2S3-Ti: LiNbO3Taper Couplers Using Supermode Theory

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Optics and Photonics Journal 2012年第4期2卷 344-351页

作者： Xin Xia Yifeng Zhou Christi K. madsen Department of Electrical and Computer Engineering Texas A&M University College Station USA

In this work, we develop a simulation method based on supermode theory and transfer matrix formalism, and then apply it to the analysis and design of taper couplers for vertically integrated As2S3 and Ti: LiNbO3 hybrid waveguides. Test structures based on taper couplers are fabricated and characterized. The experimental results confirm the validity of the modeling method, which in turn, is used to analyze the fabricated couplers.

关键词： Optical Waveguides Couplers Coupled Mode Analysis

变废为宝:“蓝色循环”海洋塑料废物管理新策略

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Science Bulletin 2024年第8期69卷 993-996页

作者：余灏轩 Izni Zahidi Chow Ming Fai 梁东方 DagØivind madsen Department of Civil Engineering School of EngineeringMonash University MalaysiaBandar Sunway 47500Malaysia Monash Climate-Resilient Infrastructure Research Hub(M-CRInfra) School of EngineeringMonash University MalaysiaBandar Sunway 47500Malaysia Department of Engineering University of CambridgeCambridge CB21PZUK Davis School of Business Colorado Mesa UniversityGrand Junction 81501-3122USA

The"Blue Circle"vision,initiated by Zhejiang Province in China,represents a groundbreaking advancement in addressing marine plastic *** more than just an innovative concept,it embodies a future-forward approach to managing marine plastic waste,revealing the untapped potential in what was previously considered mere *** initiative,marrying scientific innovation with advanced technology,has been rightfully acknowledged with the prestigious2023 United Nations"Champions of the Earth"award,recognizing its innovative strategy in environmental stewardship(https://***/a/202310/31/***).

关键词： breaking debris initiated

Quality of Chest Compressions Differs over Time between Advanced and Basic Life Support

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International Journal of Clinical Medicine 2015年第12期6卷 944-953页

作者： Par Lindblad Annika Astrom Victoren Christer Axelsson Bjarne madsen Hardig Department of Emergency Varnamo County HospitalRegion Jonkopings lanSweden School of Health Sciences University of BorasBorasSweden Physio-Control Sverige/Jolife AB Ideon Science ParkLundSweden

Purpose: According to guideline recommendations, chest compressions (CC) during cardiopulmonary resuscitation (CPR) should be performed at a rate of 100 - 120 per minute, with a CC fraction (CCF) of ≥80%. The aim of this work is to explore whether CC quality differs between advanced life support (ALS) and basic life support (BLS) performed by two rescuers. Method: Cardiopulmonary resuscitation was performed by two ambulance personnel in ten ALS and ten BLS manikin scenarios. Data from these scenarios were then compared with data on ten ALS cases from the clinical setting, all with non-shockable rhythms. Data from the first two 5-minute periods of CC were evaluated from impedance data (LIFEPAK 12 defibrillator monitors) using a modified Laerdal Skillmaster manikin. Quality parameters compared were: number of CC pauses (CCPs), total time of CC (%), number of CC given and CC rate/min. Results: During the first 5 minutes, the BLS manikin scenarios had the highest number of CCPs, 15 (14 - 16), compared with the ALS manikin scenario, 14 (13 - 15), and the clinical ALS cases, 12 (10 - 15). The BLS scenario also had the highest CCFs, 81% (77% - 85%), and number of CC, 450 (435 - 495), compared with the ALS manikin scenario, 75% (64% - 81%) and 400 (365 - 444) respectively, and the clinical ALS cases, 63% (50% - 74%) and 408 (306 - 489). The median rate of CC/min in the BLS scenario was 115 (110 - 120) compared with the ALS manikin scenario, 110 (106 - 115), and the clinical ALS cases, 130 (118 - 146). During the second 5-minute period, the BLS scenario had the highest number of CCPs, 16 (15 - 17), compared with 15 (14 - 16) for the ALS manikin scenario and 11 (11 - 12) for the clinical ALS cases. The CCF in the BLS setting was 79% (75% - 83%), and the number of CC 455 (430 - 480), compared with the ALS manikin scenario, 79% (74% - 84%) and 435 (395 - 480) respectively, and the clinical ALS cases, 71% (57% - 77%) and 388 (321 - 469) respectively. The median CC rate was 118 (

关键词： Cardiac Arrest External Chest Compression Cardiac Resuscitation Advanced Life Support Basic Life Support