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A new inclination-based method to evaluate the global geomagnetic configuration and axial dipole moment

Earth and Planetary Physics 2022年第4期6卷 359-365页

作者： KaiHua Xu Fei He Yong Wei Ross N.mitchell Si Chen YuQi Wang ZhaoJin Rong Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China School of Earth and Environment University of LeedsLeedsLS29JTUK

The strength and configuration of the geomagnetic field control the average shape of the *** pure dipole assumption and the virtual dipole moment(VDM),determined by individual records,have been widely adopted to evaluate the strength of the geomagnetic field in geological ***,such an assumption might not be valid during geomagnetic transitions,such as reversals and *** traditional spherical harmonic modeling of the geomagnetic field could be difficult to implement because accurate global records are ***,we report that an empirical relationship exists between the ratio of the VDM to the true axial dipole moment(VDM/ADM)and the ratio of the power of the axial dipole to that of the non-axial dipole(AD/NAD)based on a new method utilizing globally distributed inclination *** root mean square global deviation of inclination(RMSΔI)to the standard inclination distribution of the AD was fitted to the AD/NAD with a cubic polynomial by utilizing a large number of geodynamo *** with geomagnetic field models showed that the AD/NAD derived from the RMSΔI agreed well with that calculated by using the Gauss coefficients,and the estimated ADM was consistent with the true ***,the application of volcanic records during the Laschamp excursion showed the VDM might overestimate the ADM by a factor of *** new method will be useful in future studies that characterize the configuration of the geomagnetic field and the strength of the axial dipole.

关键词： axial dipole magnetic inclination virtual dipole moment

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Coupling virio-and bacterioplankton populations with environmental variable changes in the Bohai Sea

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Acta Oceanologica Sinica 2020年第6期39卷 72-83页

作者： Caixia Wang Lin Wu Yibo Wang James S.Paterson James G.mitchell Xiaoke Hu Key Laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Ocean School Yantai UniversityYantai 264003China College of Science and Engineering Flinders UniversityAdelaideSA 5001Australia

Uncovering the role of environmental factors and finding critical factors which harbor significant fractions in governing microbial communities remain key questions in coastal marine *** detect the interactions between environmental factors and distributions of virio-and bacterioplankton in trophic coastal areas,we used flow cytometry to investigate the abundance of virio-and bacterioplankton covering 31 stations in the Bohai Sea of *** results suggested that the average abundance of total virus(TV)in winter(~2.29×108 particles/mL)was slightly lower than in summer(~3.83×108 particles/mL).The mean total bacterial abundance(TB)was much lower in winter(~2.54×107 particles/mL)than in summer(~5.43×107 particles/mL).Correlation analysis via redundancy analysis(RDA)and network analysis among virioplankton,bacterioplankton and environmental factors revealed that the abundances of viral and bacterial subpopulations depend on environmental *** winter,only temperature significantly influenced the abundances of virio-and *** summer,in addition to temperature,both salinity and nutrient(SiO2)had a remarkable impact on the distribution of virioand *** results showed a clear seasonal and trophic pattern throughout the whole water system,which revealed that temperature and eutrophication may play crucial roles in microbial distribution pattern.

关键词： virioplankton bacterioplankton flow cytometry network Bohai Sea

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体验少儿英语

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2011年

作者： H. Q. mitchell总

本学习包共包括：学生用书、亲子游戏书、单词卡、指偶卡、故事书、互动教学光盘、Audio CD。其中学生用书包括四个单元两个复习课。每单元又分为五课内容。采用唱儿歌、讲故事、听力游戏、贴纸以及系列手工活动调动多元智能开发。

ISBN: (纸本)9787040312232;9787040333299

关键词：英语课

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Robotically-harvested,thoracoscopically-tunneled transdiaphragmatic omental pedicle flap for obliteration of radiated empyema cavity

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Plastic and Aesthetic Research 2023年第1期10卷 752-757页

作者： Brianne mitchell Yasmina Samaha Taryne Imai Miguel Burch Philip Brazio Department of Surgery Cedars-Sinai Medical CenterLos AngelesCA 90048USA

Intra-thoracic defects continue to pose a challenge for the reconstructive *** soft tissue coverage and obliteration of dead space can be particularly challenging when complicated by infection or previous *** cases may require a less conventional method of *** describe a case in which vacuumassisted closure followed by pedicled omental flap transposition was successfully used to reconstruct a complicated intra-thoracic wound following pneumonectomy,radiation therapy,and recurrent wound dehiscences secondary to chronic infection.

关键词： Greater omental flap pneumonectomy radiation empyema thoracic defect robotic reconstructive surgery

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中国劳动力市场:绩效及其挑战

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世界经济文汇 2004年第1期 4-23页

作者： Ray brooks 陶然国际货币基金组织(IMF) 中国科学院农业政策研究中心

在过去 2 0年中 ,伴随着城镇私营部门重要地位的不断彰显与国有企业规模的缩减 ,中国已经形成了一个市场化程度日渐提高的劳动力市场。尽管改革进程亦行亦渐 ,在农村和国有企业中依旧存在着大量的剩余劳动力。在未来的几年当中 ,中国劳... 详细信息

在过去 2 0年中 ,伴随着城镇私营部门重要地位的不断彰显与国有企业规模的缩减 ,中国已经形成了一个市场化程度日渐提高的劳动力市场。尽管改革进程亦行亦渐 ,在农村和国有企业中依旧存在着大量的剩余劳动力。在未来的几年当中 ,中国劳动力市场所面对的首要挑战就是如何在应对入世冲击的同时 ,将剩余劳动力转移到有质量的岗位中去。据本文估计 ,如果中国的GDP年均增长率保持在 7%的水平而就业弹性为 0 .5 ,则接下来的 3至 4年内 ,城镇失业率将翻一番 ,达到 10 %左右。当然 ,强劲的经济增长有助于缓解这一压力。尤其值得重视的是 ,私营部门和近年来提供了众多就业岗位的劳动力密集型服务业的蓬勃发展极大促进了就业。因此 ,政府的政策实施重点应当包括鼓励私营部门发展、打破阻碍劳动力流动的壁垒、提升劳动者技能、改进职业介绍服务以及加强社会安全网等方面。

关键词：劳动力市场中国剩余劳动力就业弹性失业率就业岗位改革绩效评价

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新型氯乙烯非均相聚合动力学和成粒机理

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高校化学工程学报 2002年第6期16卷 632-637页

作者：包永忠翁志学黄志明 B.W.brooks 浙江大学化学工程与生物工程学系高分子工程研究所浙江杭州310027 Loughborough大学化工系

对以正丁烷(But)为反应介质的新型氯乙烯(VC)非均相聚合动力学和成粒机理进行了研究,根据VC-But二元体系气液平衡方程,由聚合过程气相压力或组成变化计算VC聚合转化率。VC非均相聚合的诱导期不明显,自动加速现象一般发生在聚合前、中期... 详细信息

对以正丁烷(But)为反应介质的新型氯乙烯(VC)非均相聚合动力学和成粒机理进行了研究,根据VC-But二元体系气液平衡方程,由聚合过程气相压力或组成变化计算VC聚合转化率。VC非均相聚合的诱导期不明显,自动加速现象一般发生在聚合前、中期,后期聚合速率较小。新型VC非均相聚合PVC树脂的体均粒径与悬浮PVC树脂相当,数均粒径较小。PVC颗粒由基本不熔结的初级粒子组成,颗粒内部初级粒子分布密度小,粒径大,孔隙率高; 而在颗粒表层初级粒子分布密度高,粒径小,孔隙率低; 树脂的增塑剂吸收率远大于悬浮PVC树脂。根据PVC树脂的颗粒特性和PVC与VC/But混合液的溶解度参数差异,推断聚合成粒机理为:PVC分子链在很低转化率时就从聚合介质中沉析出来并聚集形成微区、初级粒子和颗粒; 后期成粒过程包括颗粒内部初级粒子的增长和向表层的离心聚集、颗粒对新形成的大分子链及其初级聚集体的捕捉等。

关键词：聚氯乙烯正丁烷颗粒特性氯乙烯非均相聚合动力学成粒机理

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Beyond Ideological Conflict： Political Incorporation of Buddhist Youth in the Early PRC

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Frontiers of History in China 2012年第4期7卷 551-581页

作者： J. brooks Jessup Department of History University of Minnesota Morris Minnesota 56267 USA

This essay explores the impact of governance on the Chinese religious landscape during the early years of the People＇s Republic of China （PRC） through a case study of the Young Buddhist Association （YBA） of Shanghai. Despite the official atheist ideology of the Chinese Communist Party, during this era of New Democracy the YBA experienced Communist governance in practice as a process of political incorporation rather than coercive eradication. As its Buddhist youth movement not only survived the Communist takeover in 1949 but gained momentum well into the 1950s, the YBA was propelled to the forefront of the Buddhist community in Shanghai and became the most active and influential grassroots Buddhist organization in the early PRC. The case of the YBA demonstrates that incorporation into the new political order of the 1950s had transformative effects on the spatial construction, identity formation, and social dynamics of religious communities that cannot be reduced to steps toward their eventual elimination during the Cultural Revolution.

关键词： religion PRC Buddhism Shanghai New Democracy youth,corporatism

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Digit ratio links prenatal hormone exposure with adult lung function

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Asian Journal of Andrology 2014年第3期16卷 499-499页

作者： Denise brooks McQuade Department of Biology Skidmore College Saratoga Springs NY USA.

In a recent publication appearing in the Asian Journal of Andrology, a team of researchers investigated the relationship of early hormone exposure to adult lung function. In the publication, ＇Second to fourth digit ratio： a predictor of adult lung function＇, Park et al.,＇ described known sexual dimorphisms in lung function and a role for sex hormones in the development and regulation of lung function： the predominantly-male hormone, testosterone, enhances airway inflammation and the predominantly female hormone, estrogen, promotes lung development and protects against inflammation. Increasingly over the last decade and a half, digit ratio （the ratio of the lengths of the index to ring fingers） has served as a convenient biomarker for prenatal steroid exposure, and is thought to depend on exposure to testosterone relative to estrogen during development.

关键词： prenatal hormone publication Andrology

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Grandma Hita

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语言教育 1999年第8期 22-26页

作者： Cynthia brooks 谢琼

When I was nine years old the thought of death petrifiedme.I could not stand the prospect of anyone close to me beingtaken away,nor could I face the eternal emptiness that Ifeared was *** very word sent me into *** evening,about a year after the birth of my sister,myfather announced that my mom’s mother ,Grandma Hita,wasmoving in with us.(I called her Grandma Hita because she al-

关键词： Grandma Hita

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Marsh persistence under sea-level rise is controlled by multiple,geologically variable stressors

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Ecosystem Health and Sustainability 2017年第10期3卷 22-38页

作者： M.mitchell J.Herman D.M.Bilkovic C.Hershner Virginia Institute of Marine Science College of William&MaryGloucester PointVAUSA

Introduction:Marshes contribute to habitat and water quality in estuaries and coastal *** importance to continued ecosystem functioning has led to concerns about their ***:Concurrent with sea-level rise,marshes are eroding and appear to be disappearing through ponding in their interior;in addition,in many places,they are being replaced with shoreline stabilization *** examined the changes in marsh extent over the past 40 years within a subestuary of Chesapeake Bay,the largest estuary in the United States,to better understand the effects of sea-level rise and human pressure on marsh ***:Approximately 30 years ago,an inventory of York River estuary marshes documented the historic extent of *** were resurveyed in 2010 to examine shifts in tidal marsh extent and *** change varied spatially along the estuary,with watershed changes between a 32%loss and an 11%gain in marsh *** of marsh was apparent in high energy sections of the estuary while there was marsh gain in the upper/riverine section of the estuary and where forested hummocks on marsh islands have become *** showed little change in the small tributary creeks,except in the creeks dominated by fringing marshes and high shoreline ***:Differential resilience to sea-level rise and spatial variations in erosion,sediment supply,and human development have resulted in spatially variable changes in specific marsh extents and are predicted to lead to a redistribution of marshes along the estuarine gradient,with consequences for their unique communities.

关键词： Chesapeake Bay climate change coastal resilience marsh change salt marsh sea-level rise tidal wetlands

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