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固相萃取(SPE)和衍生化条件对GC/MS及LC/MS/MS法检测莱克多巴胺灵敏度的影响

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固相萃取(SPE)和衍生化条件对GC/MS及LC/MS/MS法检测莱克多巴胺灵...

2010年中国农业工程学会农产品加工及贮藏工程分会学术年会暨华南地区农产品加工产学研研讨会

作者：刘晓云何小维王国洪 Christine moore Cynthia Counter 杨连生 michael Vincent James Soares 华南理工大学轻工与食品学院广州万孚生物技术有限公司

本试验探讨了影响GC/MS以及LC/MS/MS检测灵敏度的影响因素。对GC/MS法的固相萃取(SPE)和衍生化条件进行优化,测试了SPE、加热时间、温度、溶液及碱基化等因素。同时测试这些条件对LC/MC/MC法的灵敏度。结果表明,碱基化为影响GC/MS法灵... 详细信息

本试验探讨了影响GC/MS以及LC/MS/MS检测灵敏度的影响因素。对GC/MS法的固相萃取(SPE)和衍生化条件进行优化,测试了SPE、加热时间、温度、溶液及碱基化等因素。同时测试这些条件对LC/MC/MC法的灵敏度。结果表明,碱基化为影响GC/MS法灵敏度的主要因素,能提高灵敏度,对衍生化条件也有影响。通过对样本进行固相萃取,碱基化处理,GC/MS法的灵敏度为0.5ng/ml,LC/MC/MC法的为0.25ng/ml。采用这种更灵敏的方法,尿液中莱克多巴胺的测试窗口期可由2d提高到6d。经过优化的GC/MS法及LC/MS/MS方法灵敏度更高,适合猪尿中莱克多巴胺的检测。

关键词：莱克多巴胺 SPE 衍生化 GC/MS LC/MS/MS 灵敏度

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金融经纪行大战，美林胜出

商业周刊（中文版） 2010年第10期 44-45页

作者：迈克尔·穆尔（michael J．moore）戴维·米尔登伯格（David Mildenberg）马欣（译）

摩根士丹利公司顾问较多，盈利较少美邦公司合并之举“恐怕未达到预期效果”金融危机撼动了美国经纪业。2009年，美国银行（Bank of America）收购经纪业巨头美林资产管理集团（Merrill Lynch）。同年，摩根士丹利公司（Morgan Stanley... 详细信息

摩根士丹利公司顾问较多，盈利较少美邦公司合并之举“恐怕未达到预期效果”金融危机撼动了美国经纪业。2009年，美国银行（Bank of America）收购经纪业巨头美林资产管理集团（Merrill Lynch）。同年，摩根士丹利公司（Morgan Stanley）在与花旗集团（Citigroup）麾下的美邦公司（Smith Barney）的合资公司中取得控股权，由此以客户资产而论从全美第五跃居第一。在华尔街一对对竞争愈演愈烈的对手中，美林和摩根士丹利-美邦也较量起来。

关键词：金融危机经纪业美林摩根士丹利公司美国银行花旗集团 2009年公司合并

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未来十年银行业将增长缓慢

商业周刊（中文版） 2010年第12期 59-60页

作者：道恩·科派奇（Dawn Kopecki）迈克尔·摩尔（michael J.moore）曹亚非（译）

银行可能正面临着自大萧条以来最缓慢的成长期。彭博社的数据屁示．自2009年创造了破纪录的收入后，美国最大的6家银行今年第三季度的合并净收入同比平均下降了8％．因为它们的各项业务都出现了全面下滑，从高盛（Goldman Sachs）的证... 详细信息

银行可能正面临着自大萧条以来最缓慢的成长期。彭博社的数据屁示．自2009年创造了破纪录的收入后，美国最大的6家银行今年第三季度的合并净收入同比平均下降了8％．因为它们的各项业务都出现了全面下滑，从高盛（Goldman Sachs）的证券交易到美国银行（Bank of America）的房屋贷款，无一幸免。

关键词：银行业增长缓慢美国银行 2009年证券交易房屋贷款净收入成长期

The fabrication of ideal diamond disk(IDD)by casting diamond film on silicon wafer

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金刚石与磨料磨具工程 2008年第S1期28卷 130-133,142页

作者： Chen Ying-Tung Sung James C. Kan Ming-Chi Chang Hsiao-Kuo Sung michael Department of Mechatronic Energy and Aerospace EngineeringNational Defense University KINIK Company 64Chung-San Rd.Ying-KuoTaipei Hsien 239Taiwan National Taiwan University National Taipei University of Technology KINIK Company 64Chung-San Rd.Ying-Kuo National Cheng-Kung University Advanced Diamond Solutions Inc.351 King Street Suite 813San FranciscoCA 94158USA

With the relentless densification of interconnected circuitry dictated by moore’ s Law,the CMP manufacture of such delicate wafers requires the significant reduction of polishing pressure of integrated circuits,not only globally,but also locally on every tip of the pad *** diamond disks used for dressing the polyurethane pads cannot produce asperities to achieve such uniformity.A new design of diamond disk was fabricated by casting diamond film on a silicon wafer that contains patterned etching pits. This silicon mold was subsequently removed by dissolution in a hydroxide *** diamond film followed the profile of the etching pits on silicon to form pyramids of identical in size and *** variation of their tip heights was in microns of single digit that was about one order of magnitude smaller than conventional diamond disks for CMP ***,the diamond film contained no metal that might contaminate the circuits on polished wafer during a CMP *** continuous diamond film could resist any corrosive attack by slurry of acid or ***,in-situ dressing during CMP is possible that may improve wafer uniformity and production *** ideal diamond disk(IDD) is designed for the future manufacture of advanced semiconductor chips with node sizes of 32 nm or smaller.

关键词： CMP pad conditioner diamond film CVD moore’s Law 32 nm node

Stencil Printing 008004/0201 Aperture Components

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Stencil Printing 008004/0201 Aperture Components

High-performance multilayer WSe2 field-effect transistors with carrier type control

2020中国高端SMT学术会议

作者： Edward C.Nauss michael Butler

This paper will focus on the application requirements of solder printing small aperture designs, concentrating on 008004（inch）/0201（metric） size components, and the results of a design of experiment printing these challenging apertures. As moore’s law continues to be applied to component miniaturization, the next installment of reduced packaging has arrived in the form of the 008004/0201 for resistors and capacitors. Component size roughly the size of a grain of sand presents specific challenges to the solder printing process. To address these challenges, each aspect of the printing process will need be examined. This includes essential machine requirements, including correct squeegee blades, tooling support, and calibrations, to meet the demanding specifications. The correct match and design of materials will be addressed, focusing on the stencil and substrate design along with solder paste and cleaning solvent requirements. A design of experiment will be reviewed that applies the machine and materials discussed, including the printer and Solder Paste Inspection（SPI） setup and the specific machine parameters used. The results of these DOE’s will then be closely examined.

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Nano Research 2018年第2期11卷 722-730页

作者： Pudasaini, Pushpa Raj Oyedele, Akinola Zhang, Cheng Stanford, michael G. Cross, Nicholas Wong, Anthony T. Hoffman, Anna N. Xiao, Kai Duscher, Gerd Mandrus, David G. Ward, Thomas Z. Rack, Philip D. Department of Materials Science and Engineering University of Tennessee Knoxville USA Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge USA Bredesen Center for Interdisciplinary Research and Graduate Education University of Tennessee Knoxville USA Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge USA

In this stud high-performance multilayer WSe2 field-effect transistor （FET） devices with carrier type control are demonstrated via thickness modulation and a remote oxygen plasma surface treatment. Carrier type control in multilayer WSe2 FET devices with Cr/Au contacts is initially demonstrated by modulating the WSe2 thickness. The carrier type evolves with increasing WSe2 channel thickness, being p-type, ambipolar, and n-type at thicknesses 〈 3, - 4, and 〉 5 nm, respectively. The thickness-dependent carrier type is attributed to changes in the bandgap of WSe2 as a function of the thickness and the carrier band offsets relative to the metal contacts. Furthermore, we present a strong hole carrier doping effect via remote oxygen plasma treatment. It non-degenerately converts n-type characteristics into p-type and enhances field-effect hole mobility by three orders of magnitude. This work demonstrates progress towards the realization of high-performance multilayer WSe2 FETs with carrier type control, potentially extendable to other transition metal dichalcogenides, for future electronic and oDtoelectronic alpplications.

关键词： transition metaldichalcogenide field-effect transistors carrier control plasma treatment carrier mobility

Handbook of Stem Cells

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丛书名： v. 1

2004年

作者： Robert Lanza John Gearhart Brigid Hogan Douglas Melton Roger Pedersen James Thomson michael West

ISBN: (数字)9780080533735

ISBN: (纸本)9780124366435

New discoveries in the field of stem cell research have frequently appeared in the news and in scientific literature. Research in this area promises to lead to new therapies for cancer, heart disease, diabetes, and a wide variety of other diseases. This two-volume reference integrates this exciting area of biology, combining the prerequisites for a general understanding of adult and embryonic stem cells, the tools, methods, and experimental protocols needed to study and characterize stem cells and progenitor populations, as well as a presentation by the world's experts of what is currently known about each specific organ system. The editors of the Handbook of Stem Cells include: Robert Lanza, Helen Blau, John Gearhart, Brigid Hogan, Douglas Melton, Malcolm moore, Roger Pedersen, E. Donnall Thomas, James Thomson, Catherine Verfaillie, Irving Weissman, and michael West. The Editorial Board includes: W. French Anderson, Peter Andrews, Anthony Atala, Jose Cibelli, Giulio Cossu, Robert Edwards, Martin Evans, Elaine Fuchs, Margaret Fuller, Fred Gage, Richard Gardner, Margaret Goodell, Ronald Green, William Haseltine, Joseph Itskovitz-Eldor, Rudolf Jaenisch, Ihor Lemischka, Dame Anne McLaren, Richard Mulligan, Stuart Orkin, Martin Pera, Benjamin Reubinoff, Janet Rossant, Hans Scholer, Austin Smith, Evan Snyder, Davor Solter, Alan Trounson, and Leonard Zon. This comprehensive set should be a much-needed addition to the library of students and researchers alike.

关键词： Stem cells.

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911是苦肉计？

科学（中文版） 2005年第7期 20-21页

作者： michael Shermer 魏小巍

法国知名左翼活动家Thierry Meyssan写的那本关于911阴谋的著作,成了2002年的畅销书.我可从没想到,这种"耸人听闻的伎俩"居然也会在美国找到言路.前不久我还在一场公开讲座上遭到了michael moore--一位半吊子制片人--的围追堵截,他拉住... 详细信息

法国知名左翼活动家Thierry Meyssan写的那本关于911阴谋的著作,成了2002年的畅销书.我可从没想到,这种"耸人听闻的伎俩"居然也会在美国找到言路.前不久我还在一场公开讲座上遭到了michael moore--一位半吊子制片人--的围追堵截,他拉住我,不歇气地宣称什么911是一起布什、切尼、拉姆斯菲尔德和中央情报局协同制造的事件,这是他们实行全球统治和建立世界新秩序计划的组成部分;他们的目标是让G.O.D.(黄金,石油,药品)负担经费开支,再从某个珍珠港开始发动--正像对世贸中心和五角大楼的袭击那样,以便为战争提供口实.他解释说,这里有详细的证据,同时塞给我一张满是网站名称的假美钞(上面用9-11换掉1,用布什照片挤掉华盛顿的).

关键词： 911 michael 2002年协同制造组成部分五角大楼世贸中心肉珍珠

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华盛顿改革中摇摆

商业周刊（中文版） 2010年第1期 24-25页

作者：西奥·弗朗西斯（Theo Francis）艾莉森·维克辛（Alison Vekshin）本·莱文森（Ben Levisohn）迈克尔·穆尔（michael J．moore）马克·斯科特（Mark Scotr）吴亚锋（译）

老练的投资者在买进卖f出前，郜要考虑一堆因素。现在又要增加一个：新的监管。“每次我们研判一项投资时，都要问自己：美闽或外围政府的监管机构将会如何看待这项投资？”对冲基金Sabretooth Capital Management的董事长克雷格·佩里... 详细信息

老练的投资者在买进卖f出前，郜要考虑一堆因素。现在又要增加一个：新的监管。“每次我们研判一项投资时，都要问自己：美闽或外围政府的监管机构将会如何看待这项投资？”对冲基金Sabretooth Capital Management的董事长克雷格·佩里（Craig Perry）表示。Sabretooth总部位于纽约，资产规模1．5亿美元。

关键词：华盛顿 Capital 摇摆改革监管机构投资者对冲基金资产规模