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疯狂英语（阅读版） 2015年第2期 4-8页

作者： John powers Mac

我更喜欢称本尼迪克特·康伯巴奇为“卷福”，因为这里面代表了影迷对他以及这个角色的喜爱，而这个角色也必定是他演艺生涯的一个重要注脚。你看他那种略带神经质的表演会禁不住疑问：他本人是这样的吗？如果不是，为什么能把这个角色... 详细信息

我更喜欢称本尼迪克特·康伯巴奇为“卷福”，因为这里面代表了影迷对他以及这个角色的喜爱，而这个角色也必定是他演艺生涯的一个重要注脚。你看他那种略带神经质的表演会禁不住疑问：他本人是这样的吗？如果不是，为什么能把这个角色演绎得如此惟妙惟肖？

关键词：迪克奥斯卡演艺生涯神经质

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黄鸟

用梭状锈菌接种后火矩松半同胞子代的抗病反应

2018年

作者： (美)凯文·鲍尔斯(Kevin powers)

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湖北林业科技 1990年第2期19卷 42-44页

作者： E.G.Kuhlman H.R.powers Jr 徐鸿玺

在佐冶亚州美国林务局林业委员会的种子园中对156株自由授粉的火矩松子代用梭状柱锈菌(Cronartium quercuum ***)接种。9个月后,156个家系的现瘤率范围为2-97%。以0. 70发病比值为指标划分敏感与抗病家系,统计学检验结果表明,感病家系... 详细信息

在佐冶亚州美国林务局林业委员会的种子园中对156株自由授粉的火矩松子代用梭状柱锈菌(Cronartium quercuum ***)接种。9个月后,156个家系的现瘤率范围为2-97%。以0. 70发病比值为指标划分敏感与抗病家系,统计学检验结果表明,感病家系的现瘤率较其他116个家系显著为高。0. 70发病比值较对抗病及敏感家系的卡方独立性杆验更为保守。为确定抗性反应的相对频率,对抗病及敏感家系对侵染的反应进行了比较。发现许多抗病家系不出现茎部症状,这是抗病反应的最普通的表现。抗病的2318,10-5及42R 的第三子代有50%以上的个体具有这种反应。针叶斑点是侵染的早期症状,但在第3及6个月时具有针叶斑点苗木的频率与9个月时产生锈瘤的频率不相关。一些第三子代在接种后的3,6,9个月仅出现茎部斑点而不形成肿瘤作为一种抗性反应。某些抗病家系在6个月时呈现茎部斑点,但在9个月时便不复存在。试验还测定了90个家系中出现短、中、长三类肿瘤的比例,分别为10,29,及62%,家系之间肿瘤的长度差异显著。某些抗病家系苗的肿瘤较敏感家系的长,而某些抗病家系子代的短型瘤为平均值的两倍。

关键词：火矩松梭状锈菌接种抗病反应

Gain in polycrystalline Nd-doped alumina: leveraging length scales to create a new class of high-energy, short pulse, tunable laser materials

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Light(Science & Applications) 2018年第1期7卷 783-794页

作者： Elias H.Penilla Luis F.Devia-Cruz matthew A.Duarte Corey L.Hardin Yasuhiro Kodera Javier E.Garay Advanced Materials Processing and Synthesis(AMPS)Laboratory UC San DiegoLa JollaCA 92093USA Materials Science&Engineering and Mechanical&Aerospace Engineering University of CaliforniaSan DiegoLa JollaCA 92093USA

Traditionally accepted design paradigms dictate that only optically isotropic(cubic)crystal structures with high equilibrium solubilities of optically active ions are suitable for polycrystalline laser gain *** restriction of symmetry is due to light scattering caused by randomly oriented anisotropic crystals,whereas the solubility problem arises from the need for sufficient active dopants in the *** criteria limit material choices and exclude materials that have superior thermo-mechanical properties than state-of-the-art laser ***(Al_(2)O_(3))is an ideal example;it has a higher fracture strength and thermal conductivity than today’s gain materials,which could lead to revolutionary laser ***,alumina has uniaxial optical proprieties,and the solubility of rare earths(REs)is two-to-three orders of magnitude lower than the dopant concentrations in typical RE-based gain *** present new strategies to overcome these obstacles and demonstrate gain in a RE-doped alumina(Nd:Al_(2)O_(3))for the first *** key insight relies on tailoring the crystallite size to other important length scales—the wavelength of light and interatomic dopant distances,which minimize optical losses and allow successful Nd *** result is a laser gain medium with a thermo-mechanical figure of merit of R_(s)~19,500 Wm^(−1) a 24-fold and 19,500-fold improvements over the high-energy-laser leaders Nd:YAG(R_(s)~800Wm^(−1))and Nd:Glass(R_(s)~1Wm^(−1)),***,the emission bandwidth of Nd:Al_(2)O_(3) is broad:~13 *** successful demonstration of gain and high bandwidth in a medium with superior R_(s) can lead to the development of lasers with previously unobtainable highpeak powers,short pulses,tunability,and high-duty cycles.

关键词： dopant tunable high

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流感、肺炎、破伤风等疫苗接种效果如何?

实用老年医学 1988年第4期 188-190页

作者： powers DC 汤爱民

与老年患者打交道的医务人员应当记住“预防优于治愈10倍”。老年人群许多传染病的发病率和疾病的严重程度均增加,因此,预防为主的卫生战略,包括健康保持和疾病特异性的疫苗接种在降低老年人患病率和死亡率方面有着巨大的潜力。流感疫... 详细信息

与老年患者打交道的医务人员应当记住“预防优于治愈10倍”。老年人群许多传染病的发病率和疾病的严重程度均增加,因此,预防为主的卫生战略,包括健康保持和疾病特异性的疫苗接种在降低老年人患病率和死亡率方面有着巨大的潜力。流感疫苗流感仍属最重要但尚未控制的人类病毒性疾病之一。对A型流感所做的大量流行病学研究结果表明病死率和严重并发症随年龄增长而增加,在患有慢性消耗性疾病或生活在集体环境中的老年人中最

关键词：疫苗接种肺炎球菌感染破伤风锁口风梭状芽孢杆菌感染流感流行性感冒

Habitat protection for sensitive species: Balancing species requirements and human constraints using bioindicators as examples

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Natural Science 2013年第5期5卷 50-62页

作者： Joanna Burger Michael Gochfeld Charles W. powers Lawrence Niles Robert Zappalorti Jeremy Feinberg James Clarke Conserve Wildlife Foundation of New Jersey Greenwich NJ USA Consortium for Risk Evaluation with Stakeholder Participation Vanderbilt University Nashville TN USA Department of Civil and Environmental Engineering Vanderbilt University Nashville TN USA Division of Life Sciences Rutgers University Piscataway NJ USA Ecology and Evolution Graduate Program Rutgers University New Brunswick NJ USA Division of Life Sciences Rutgers University Piscataway NJ USA Environmental and Occupational Health Sciences Institute Rutgers University Piscataway NJ USA Consortium for Risk Evaluation with Stakeholder Participation Vanderbilt University Nashville TN USA Environmental and Occupational Health Sciences Institute Rutgers University Piscataway NJ USA Consortium for Risk Evaluation with Stakeholder Participation Vanderbilt University Nashville TN USA Environmental and Occupational Medicine UMDNJ-Robert Wood Johnson Medical School Piscataway NJ USA Herpetological Associates Inc. Jackson NJ USA

Vertebrates have particular habitat needs as a function of life cycle and reproductive stage. This paper uses four species as examples to illustrate a paradigm of environmental assessment that includes physical, biological, toxicological and human dimensions. Species used include Chinook salmon (Oncorhynchus tshawytscha), northern leopard frog (Rana pipiens), northern pine snake (Pituophis m. melanoleucus), and red knot (Calidris canutus rufa, a sandpiper). The life cycles of these species include reliance on habitats that are aquatic, terrestrial, aerial, or combinations of these. Two species (frog, snake) are sedentary and two (salmon, sandpiper) are long-distance migrants. While some measurement endpoints are similar for all species (reproductive success, longevity, contaminant loads), others vary depending upon life cycle and habitat. Salmon have a restricted breeding habitat requiring coarse sand, moderate current, and high oxygen levels for adequate egg incubation. Leopard frogs require still water of appropriate temperature for development of eggs. Pine snakes require sand compaction sufficient to sustain a nest burrow without collapsing, and full sun penetration to the sand to allow their eggs in underground nests to incubate and hatch. Red knots migrate to high Arctic tundra, but incubate their own eggs, so temperature is less of a constraint, but feedinging habitat is. These habitat differences suggest the measurement endpoints that are essential to assess habitat suitability and to manage habitats to achieve stable and sustainable populations. Habitat use and population stability have implications for human activities for some, but not all species. Salmon are important economically, recreationally, and as part of Native American culture and diet. Red knots are of interest to people mainly because of their long, intercontinental migrations and declining populations. Other measurement endpoints for these four species illustrate the differences and similarit

关键词： Assessment Environmental Monitoring Bioindicators Habitat vulnerabilities Salmon Frog Snake Bird

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新天地“镜廊”装置

城市环境设计 2017年第6期 134-141页

作者： Seth powers Benoit Florencon 秦云 UNStudio

由UNStudio与中国新天地合作,"镜廊"装置的设计从概念上探索了陈列装置在上海的角色:发生在城市居住者与城市景观之间的文化反馈的共生关系。一个由走道延伸出的拱廊,作为通向新天地时尚购物广场的入口,该装置以一个单一的建筑形态完成... 详细信息

由UNStudio与中国新天地合作,"镜廊"装置的设计从概念上探索了陈列装置在上海的角色:发生在城市居住者与城市景观之间的文化反馈的共生关系。一个由走道延伸出的拱廊,作为通向新天地时尚购物广场的入口,该装置以一个单一的建筑形态完成了"墙-屋面-墙"的过渡。它不仅引导着行人的移动轨迹,还将这些动作反射在其表面上,令行人的倒影在装置上旋转和倒置。同时,反射的行人也在环境中的三种"界面"之间移动:零售

关键词：城市景观零售店

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从“打雷姐”看网络炒作

疯狂英语（初中天地） 2012年第7期 7-9页

作者： Ann powers 思苇

一边是负面新闻和业界诟病，一边是不断飙升的下裁量和人气度——歌坛新秀拉娜．德雷的成名过程就像一个神奇的怪圈，越骂越红，越红越骂，让人不由联想到国内娱乐圈的类似个案。以下这篇访谈以中立的态度探讨“打雷姐”现象，并延伸到... 详细信息

一边是负面新闻和业界诟病，一边是不断飙升的下裁量和人气度——歌坛新秀拉娜．德雷的成名过程就像一个神奇的怪圈，越骂越红，越红越骂，让人不由联想到国内娱乐圈的类似个案。以下这篇访谈以中立的态度探讨“打雷姐”现象，并延伸到网络红人与炒作等问题，深入浅出，颇有见地哦!

关键词：网络红人炒作负面新闻娱乐圈

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克服说外语的恐惧

中学生英语 2020年第27期 4-5页

作者： Brian powers 景一(编译) 不详

很多学生都害怕把外语大声说出来,为什么?是害怕犯错吗?或者是害怕尴尬的沉默?不管是什么原因,大多数外语学习者都有这样的尴尬和恐惧。那么我们能做些什么来减少这种情况呢?

关键词：犯错恐惧外语尴尬害怕

Efficient AUV Path Planning in Time-Variant Underwater Environment Using Differential Evolution Algorithm

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Journal of Marine Science and Application 2018年第4期17卷 585-591页

作者： S.Mahmoud Zadeh D.M.W powers A.M.Yazdani K.Sammut A.Atyabi School of Computer Science Engineering and Mathematics Flinders University Tonsley Centre for Maritime Engineering Control and Imaging Flinders University Seattle Children's Research Institute University of Washington

Robust and efficient AUV path planning is a key element for persistence AUV maneuvering in variable underwater environments. To develop such a path planning system, in this study, differential evolution(DE) algorithm is employed. The performance of the DE-based planner in generating time-efficient paths to direct the AUV from its initial conditions to the target of interest is investigated within a complexed 3D underwater environment incorporated with turbulent current vector fields, coastal area,islands, and static/dynamic obstacles. The results of simulations indicate the inherent efficiency of the DE-based path planner as it is capable of extracting feasible areas of a real map to determine the allowed spaces for the vehicle deployment while coping undesired current disturbances, exploiting desirable currents, and avoiding collision boundaries in directing the vehicle to its destination. The results are implementable for a realistic scenario and on-board real AUV as the DE planner satisfies all vehicular and environmental constraints while minimizing the travel time/distance, in a computationally efficient manner.

关键词： Path planning Differential evolution Autonomous underwater vehicles Evolutionary algorithms Obstacle avoidance