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电子产品世界 2004年第4B期11卷 63-64页

作者： sean Clark Michael j. Rauth Fairchild Semiconductor Fairchild Semiconductor

很多电子系统继续向更低的电压信号水平转移.这个发展潮流背后的动力是对减少功耗的需求.更快的整流速度和降低信号噪声等方面的进步既方便了设计者,也向他们提出了新的挑战.

关键词：过压容限双轨转换器信号电平转换双电源器件

Early infant male circumcision:Systematic review,risk-benefit analysis,and progress in policy

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世界临床儿科杂志 2017年第1期6卷 89-102页

作者： Brian j Morris sean E Kennedy Alex D Wodak Adrian Mindel David Golovsky Leslie Schrieber Eugenie R Lumbers David j Handelsman john B Ziegler School of Medical Sciences and Bosch Institute University of Sydney School of Women’s and Children’s Health University of New South Wales St Vincent’s Hospital and Kirby Institute for Infection and Immunity in Society University of New South Wales IVF Australia Department of Medicine Sydney Medical SchoolRoyal North Shore Hospital School of Biomedical Sciences and Pharmacy Mothers and Babies Research CentreHunter Medical Research InstituteUniversity of Newcastle Department of Medicine and ANZAC Research Institute Concord Hospital Department of Immunology and Infectious Diseases Sydney Children’s Hospital

AIM To determine whether recent evidence-based United States polices on male circumcision(MC) apply to comparable Anglophone countries,Australia and New *** Articles in 2005 through 2015 were retrieved from PubM ed using the keyword "circumcision" together with 36 relevant subtopics.A further PubM ed search was performed for articles published in *** of the EMBASE and Cochrane databases did not yield additional citable *** were assessed for quality and those rated 2+ and above according to the Scottish Intercollegiate Grading System were studied *** most relevant andrepresentative of the topic were *** were examined to retrieve further key *** controlled trials,recent high quality systematic reviews or meta-analyses(level 1++ or 1+ evidence) were prioritized for inclusion.A risk-benefit analysis of articles rated for quality was *** efficiency and reliability,recent randomized controlled trials,metaanalyses,high quality systematic reviews and large welldesigned studies were used if *** searches were conducted for other relevant information,including policies and Australian data on claims under Medicare for *** Evidence-based policy statements by the American Academy of Pediatrics(AAP) and the Centers for Disease Control and Prevention(CDC) support infant and later age male circumcision(MC) as a desirable public health *** systematic review of relevant literature over the past decade yielded 140 journal articles that met our inclusion ***,these showed that early infant MC confers immediate and lifelong benefits by protecting against urinary tract infections having potential adverse long-term renal effects,phimosis that causes difficult and painful erections and "ballooning" during urination,inflammatory skin conditions,inferior penile hygiene,candidiasis,various sexually transmissible infections in both sexes,genital ulcers,and penil

关键词： Male circumcision Evidence-based policy Infants Adults Urinary tract infections Adverse events Sexually transmitted infections Genital cancers Riskbenefit analysis Cost-benefit

泰国Khao Yai国家公园豹猫的道路生态学(英文)

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动物学报 2007年第2期53卷 373-377页

作者： sean C. AUSTIN Michael E. TEWES Lon I. GRASSMAN jr Nova j. SILVY Feline Research Program Caesar Kleberg Wildlife Research Institute MSC 218700 University Blvd. Texas A&M University-Kingsville Kingsville TX 78363 USA Department of Wildlife and Fisheries Sciences 210 Nagle Hall Texas A&M University College Station TX 77843 USA

为了解道路对豹猫(Prionailurus bengalensis)空间生态和时间生态的影响,使用无线电追踪技术对6只雌性个体和4只雄性个体进行了为期1-18个月的监测。道路上的车辆主要在白天出现,似乎不影响豹猫的位置或活动,即便在周末或假期车辆增加时... 详细信息

为了解道路对豹猫(Prionailurus bengalensis)空间生态和时间生态的影响,使用无线电追踪技术对6只雌性个体和4只雄性个体进行了为期1-18个月的监测。道路上的车辆主要在白天出现,似乎不影响豹猫的位置或活动,即便在周末或假期车辆增加时,情形也是如此。需要更多的研究来确定本文报道的结果是否代表了该物种的整体情况,或者仅仅特定于Kao Yai国家公园。

关键词：豹猫道路生态学泰国

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运用器官和组织培养繁殖边缘桉

热带林业 1986年第4期 71-76页

作者： I.j.bennett j·A·McComd 万汉彬

本文讨论了边缘桉实生苗生产无性系的试管培养繁殖(亦称微型繁殖——译者注)方法,从熟态株茎节段外植体也能产生枝培养物,但是茎节段外植体污染频率很高。熟态株若运用花药花丝培养可以培养不受污染的愈伤组织,这类愈伤组织能够形成枝... 详细信息

本文讨论了边缘桉实生苗生产无性系的试管培养繁殖(亦称微型繁殖——译者注)方法,从熟态株茎节段外植体也能产生枝培养物,但是茎节段外植体污染频率很高。熟态株若运用花药花丝培养可以培养不受污染的愈伤组织,这类愈伤组织能够形成枝培养物。无论熟态株的茎节段的,还是花药花丝的愈伤组织,其枝培养物的生根率均低于实生苗外植体愈伤组织的生根率。株间花药花丝愈伤组织的出枝力及生根力有很大不同。

关键词：愈伤组织花丝节段培养物创伤组织外植体愈伤组织诱导花药试管培养生根率生物指标实生苗子叶柄茎节再生植株器官

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用粗颗粒制品的热膨胀系数表征石油焦的质量

炭素技术 1990年第6期9卷 16-17页

作者： M.j.Spoon j.A.bennett 刘大为

引言多年来,石墨和针状焦生产厂家一直靠测量小挤压品热膨胀系数(CTE)的方法来确认针状焦的质量,这种挤压品用焦“粉”特殊加工而成,其最大粒度为0.425mm,而低于0.075mm占重量的45～65％,在最近几年中,由于针状焦质量的改善和热膨胀系... 详细信息

引言多年来,石墨和针状焦生产厂家一直靠测量小挤压品热膨胀系数(CTE)的方法来确认针状焦的质量,这种挤压品用焦“粉”特殊加工而成,其最大粒度为0.425mm,而低于0.075mm占重量的45～65％,在最近几年中,由于针状焦质量的改善和热膨胀系数的降低,这种标准粉子的热膨胀系数试验的灵敏程度不够了。依我们的经验,该试验似乎不再与大规格的工业电极热膨胀系数有密切关系。我们研究出一种新的热膨胀系数试验方法,该方法用直径3/4英寸标准挤压机,制品配方中包括粒度达6.7mm的粗颗粒。对这种粗颗粒制品所进行的CTE的测量结果与大规格电极有密切关系。并且这种新试验方法速度怏。

关键词：石油焦粗颗粒制品热膨胀系数

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慕尼黑

慕尼黑

Nonlinear optical performance of few-layer molybdenum diselenide as a slow-saturable absorber

作者： j.W.·惠勒-贝内特(j.W. Wneeler-bennett)

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Photonics Research 2018年第7期6卷 674-680页

作者： GAOZHONG WANG GUANGXING LIANG AIDAN A.BAKER-MURRAY KANGPENG WANG jING jING WANG XIAOYAN ZHANG DANIEL bennett jING-TING LUO jUN WANG PING FAN WERNER j.BLAU Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Energy Shenzhen University School of Physics and the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) Trinity College Dublin Key Laboratory of Materials for High-Power Laser Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences

Two-dimensional transition metal dichalcogenides are considered promising materials for next-generation photonics and nano-optical devices. Although many previous reports have shown saturable absorption of molybdenum diselenide(Mo Se2), these nonlinear optical(NLO) properties of Mo Se2 were measured in separate works and under different conditions with their hot-carrier relaxations. Here, we conducted a series of coherent studies on the NLO properties of few-layer Mo Se2 via open-aperture Z-scan and degenerate pump-probe techniques. These measurements were taken to test the materials' capabilities as a slow-saturable absorber. A slowabsorber model was employed to analyze the NLO measurements, and the results show that the NLO modulation depth was modeled to be 7.4% and 15.1% for the linear absorption coefficients of 5.22 cm-1 and 6.51 cm-1,respectively. The corresponding saturated intensities were modeled to be 39.37 MW∕cm2 and 234.75 MW∕cm2,respectively. The excitation carrier recovery time of few-layer Mo Se2 was measured by degenerate pump-probe techniques to be ～220 ps. These nonlinear optical performances make it a promising slow-saturable absorber for passive mode locking in femtosecond lasers.

关键词：金属双卤纳米技术发展现状通讯技术

Differential Cross Sections and Collision-Induced Rotational Alignment in Inelastic Scattering of NO(X)by Xe

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Chinese journal of Chemical Physics 2020年第2期33卷 217-233,I0003,J0001-J0017页

作者： Mark Brouard Helen Chadwick sean DSGordon Cornelia GHeid Balazs Hornung Bethan Nichols jacek Klos Pablo Gjambrina Fjavier Aoiz The Department of Chemistry University of OxfordThe Chemistry Research Laboratory12 Mans-field RoadOxford OX13TAUK Department of Chemistry and Biochemistry University of MarylandCollege ParkMaryland 20742USA Departamento de Química Física Facultad de Ciencias QuímicasUniversity of SalamancaSala-mancaSpain Departamento de Química Física Facultad de QuímicaUniversidad Complutense28040 MadridSpain

Fully A-doublet resolved differential cross sections and collision-induced rotational alignment moments have been measured for the NO(X)-Xe collision system at a collision energy of 519 cm^-*** experiments combine initial quantum state selection,employing a hexapole inhomogeneous electric field,with quantum state resolved detection,using(1+1')resonantly enhanced multiphoton ionization and velocity map ion *** differential cross sections and polarization dependent differential cross sections are shown to agree well with quantum mechanical scattering calculations performed on ab initio potential energy surfaces[*** et ***.137,014312(2012)].By comparison with quasi-classical trajectory calculations,quantum mechanical scattering calculations on a hard-shell potential,and kinematic apse model calculations,the effects of the attractive part of the potential on the measured differential cross sections and collision-induced rotational alignment moments are assessed.

关键词： Chemical Physics Reaction dynamics Inelastic scattering

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一种用于波长测量的数字式干涉仪

宇航计测技术 1982年第2期 64-68页

作者： S.j.bennett P.Gill 呼庆功

本文介绍了一种用来测量激光波长的简单的条纹计数式干涉仪,给出了几种激光谱线波长的测定值.它们是氦—氖、氩和氪激光谱线,由饱和吸收的碘蒸气所稳定,不准确性为2×10-8（可信度99%）。

关键词：干涉仪条纹计数激光波长滑架光束立方体测量仪器粒子束正方体波长测量数字计数器

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不同偏振态飞秒激光在PMMA上的成丝现象

激光与光电子学进展 2017年第12期54卷 495-501页

作者：翟中生郭钊汪于涛吕清花陈列娄德元杨奇彪 Peter bennett 刘顿湖北工业大学机械工程学院湖北武汉430068 湖北工业大学理学院湖北武汉430068

随着飞秒激光技术的不断成熟和聚甲基丙烯酸甲酯(PMMA)的大量应用,对PMMA光学性能的研究逐渐成为研究热点。飞秒激光在透明材料加工过程中会出现成丝现象,分析了自聚焦和丝状物的产生原理。偏振态是激光光束的重要特征之一,利用空间光... 详细信息

随着飞秒激光技术的不断成熟和聚甲基丙烯酸甲酯(PMMA)的大量应用,对PMMA光学性能的研究逐渐成为研究热点。飞秒激光在透明材料加工过程中会出现成丝现象,分析了自聚焦和丝状物的产生原理。偏振态是激光光束的重要特征之一,利用空间光调制器、1/2波片和1/4波片组合可实现对线偏振光、圆偏振光、径向偏振光和角向偏振光的控制。利用产生的1μj偏振光在PMMA上刻线,对比分析不同偏振光的成丝长短和成丝起始位置。实验结果表明:线偏振光和圆偏振光的成丝长度较短,其中线偏振光的成丝位置距离入射面最近;径向偏振光和角向偏振光的成丝长度较长,且成丝位置距离入射面最远。

关键词：超快光学聚甲基丙烯酸甲酯自聚焦偏振态飞秒成丝