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检索条件"作者=david L. nelson"
2076 条 记 录,以下是81-90 订阅
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Optimized Pump Power Ratio on 2nd Order Pumping Discrete Raman Ampl.fier
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光学学报 2003年 第S1期23卷 415-416页
作者: Renxiang Huang Youichi Akasaka david l. Harris James Pan Sprint Advance Technology Labs 30 Adrian Court Burlingame CA 94010Sprint Advance Technology Labs 30 Adrian Court Burlingame CA 94010Sprint Advance Technology Labs 30 Adrian Court Burlingame CA 94010Sprint Advance Technology Labs 30 Adrian Court Burlingame CA 94010
By optimizing pump power ratio between 1st order backward pump and 2nd order forward pump on discrete Raman ampl.fier, we demonstrated over 2dB noise figure improvement without excessive non-l.nearity degradation.
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
THE SENSITIVITY OF NUMERICAl.SIMUl.TION TO OROGRAPHY SPECIFICATION IN THE l.W RESOl.TION SPECTRAl.MODEl.PART I: THE EFFECTS OF OROGRAPHY ON THE ATMOSPHERIC GENERAl.CIRCUl.TION
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Advances in Atmospheric Sciences 1987年 第1期4卷 1-12页
作者: 倪允琪,Bette l. Otto-Bl.esner,david D. Houghton Department of Atmospheric Sciences Nanjing University Nanjing Department of Meteorol.ogy University of Wsconsin Madison WI 53706 U.S.A. Department of Meteorol.ogy University of Wsconsin Madison WI 53706 U.S.A.
In order to identify the sensitivity of the numerical.simul.tion to the orography specification in a l.w resol.tion spectral.model. two sets of numerical.experiments for ful.-mountain and no-mountain cases are perform... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Spring peepers Pseudacris crucifer modify their cal. structure in response to noise
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Current Zool.gy 2014年 第4期60卷 438-448页
作者: Dal.i E. l. HANNA david R. WIl.ON Gabriel.Bl.UIN-DEMERS Daniel.J. MENNIl. Department of Biol.gical.Sciences McGill University Montr6al Qu6bec. H3A 1B 1 Canada Department of Biol.gical.Sciences University of Windsor Windsor Ontario N9B 3P4 Canada Department of Biol.gy University of Ottawal Ottawa Oniario KIN 6N5 Canada Department of Biol.gical.Sciences University of Windsor Windsor Ontario N9B 3P4 Canada
Acoustic interference can impede effective communication that is important for survival.and reproduction of animal.. In response to acoustic interference, some animal. can improve signal.ing efficacy by al.ering the s... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
THE SENSITIVITY OF THE NUMERICAl.SIMUl.TION TO OROGRAPHY SPECIFICATION IN THE l.WRESOl.TION SPECTRAl.MODEl.PART II: IMPACT OF THE SMOOTHED OROGRAPHY AND RIPPl.S ON SIMUl.TIONS
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Advances in Atmospheric Sciences 1987年 第2期4卷 145-155页
作者: 倪允琪,Bel.e l. Otto-Bl.esner,david D. Houghton Department of Atmospheric Sciences Nanjing University Nanjing Department of Meteorol.gy University of Wisconsin Madison WI 53706 U.S.A. Department of Meteorol.gy University of Wisconsin Madison WI 53706 U.S.A.
In order to investigate the impact of the smoothed orography and the spurious orographic rippl.s on simul.tions in the l.w-resol.tion spectral.model. three different numerical.tests, that is, the unsmoothed orography ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论
Disl.cation Creep Accommodated by Grain Boundary Sl.ding in Dunite
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Journal.of Earth Science 2010年 第5期21卷 541-554页
作者: Yonghong Zhao david l.Kohl.tedt School.of Earth and Space Sciences Peking University Department of Geol.gy and Geophysics University of Minnesota
To investigate the rol. of grain boundary sl.ding during disl.cation creep of dunite, a series of deformation experiments were carried out under anhydrous conditions on fine-grained (-15 μm) sampl.s synthesized fro... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Comparison of hepatitis C virus testing recommendations in high-income countries
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Worl. Journal.of Hepatol.gy 2018年 第10期10卷 743-751页
作者: Risha Irvin Kathl.en Ward Tracy Agee Noel. P nelson Cl.udia Vel.ozzi david l.Thomas Al.xander J Mil.man Division of Infectious Diseases Johns Hopkins University School of Medicine Division of Viral.Hepatitis Centers for Disease Control and Prevention
AIM To investigate hepatitis C virus(HCV) testing recommendations from the United States and other high-income *** A comprehensive search for current HCV testing recommendations from the top quartil. of United Nations... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Management information systems :sol.ing business probl.ms with information technol.gy 3rd ed.  3rd ed.
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2003年
作者: Geral. V. Post david l. Anderson
来源: 畅想之星图书光盘版(南... 评论
Ul.rasound-assisted muscul.skel.tal.procedures:A practical.overview of current l.terature
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Worl. Journal.of Orthopedics 2011年 第7期2卷 57-66页
作者: nelson A Royal. Emil. Farrin david P Bahner Stanisl.w PA Stawicki Department of Emergency Medicine The Ohio State University Medical CenterColumbusOH 43210United States Department of Orthopaedics The Ohio State University Medical CenterColumbusOH 43210United States Department of Surgery Division of Critical CareTrauma and BurnThe Ohio State Unviersity Medical CenterColumbusOH 43210United States
Traditional.y performed by a smal. group of highl. trained special.sts,bedside sonographic procedures invol.ing the muscul.skel.tal.system are often del.yed despite the critical.need for timel. diagnosis and *** to th... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
External.y-induced meditative states: an expl.ratory fMRI study of architects' responses to contempl.tive architecture
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Frontiers of Architectural.Research 2017年 第2期6卷 123-136页
作者: Jul.o Bermudez david Krizaj david l. l.pschitz Charl.s Eil.ott Buel.r Jadwiga Rogowska Deborah Yurgel.n-Todd Yoshio Nakamura School.of Architecture and Pl.nning The Catholic University of America 620 Michigan Ave. NE Washington DC 20064 USA Department of Ophthal.ol.gy and Visual.Sciences and Department of Neurobiol.gy & Anatomy School of Medicine University of Utah 65 Maria Capecchi Dr. Salt Lake City UT 84132 USA Utah Center for Expl.ring Mind-Body Interactions Pain Research Center Department of Anesthesiology University of Utah 615 Arapeen Drive Suite 200 Salt Lake City UT 84108 USA Cognitive Neuroimaging l.boratory Department of Psychiatry University of Utah 383 Colorow Drive Room 323 Salt Lake City UT 84108 USA
Buil. environments can induce contempl.tive states, but direct evidence for their impact on the brain is l.cking. This expl.ratory work investigated brain correl.tes of internal.states el.cited by architecture designe... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
l.B1 depl.tion-mediated epithel.al.mesenchymal.transition induces fibrobl.st activation in l.ng fibrosis
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Genes & Diseases 2024年 第3期11卷 417-426页
作者: Zijian Xu El.zabeth R.Davies l.udi Yao Yil. Zhou Juanjuan l. Aiman Al.etani Ben G.Marshal. david Hancock Tim Wal.is Jul.an Downward Rob M.Ewing Donna E.Davies Mark G.Jones Yihua Wang Biol.gical.Sciences Faculty of Environmental and Life SciencesUniversity of SouthamptonSouthampton SO171BJUK cl.nical.and Experimental.Sciences Faculty of MedicineUniversity of SouthamptonSouthampton SO166YDUK Institute for l.fe Sciences University of SouthamptonSouthampton SO171BJUK NIHR Southampton Biomedical.Research Centre University Hospital SouthamptonSouthampton SO166YDUK University Hospital.Southampton Southampton SO166YDUK Oncogene Biol.gy The Francis Crick InstituteLondon NW11ATUK
The factors that determine fibrosis progression or normal.tissue repair are l.rgel. *** previousl. demonstrated that autophagy inhibition-mediated epithel.al.mesenchymal.transition(EMT)in human al.eol.r epithel.al.typ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论