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164篇 您的检索式:作者名="John Todd"
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1Simultaneous removal of ammonia and N-nitrosamine precursors from high ammonia water by zeolite and powdered activated carbon显示文摘When adding sufficient chlorine to achieve breakpoint chlorination to source water containing high concentration of ammonia during drinking water treatment, high concentrations of disinfection by-products(DBPs) may form. If N-nitrosamine precursors are present, highly toxic N-nitrosamines, primarily N-nitrosodimethylamine(NDMA), may also form. Removing their precursors before disinfection should be a more effective way to minimize these DBPs formation. In this study, zeolites and activated carbon were examined for ammonia and N-nitrosamine precursor removal when incorporated into drinking water treatment processes.The test results indicate that Mordenite zeolite can remove ammonia and five of seven N-nitrosamine precursors efficiently by single step adsorption test. The practical applicability was evaluated by simulation of typical drinking water treatment processes using six-gang stirring system. The Mordenite zeolite was applied at the steps of lime softening, alum coagulation, and alum coagulation with powdered activated carbon(PAC) sorption. While the lime softening process resulted in poor zeolite performance, alum coagulation did not impact ammonia and N-nitrosamine precursor removal. During alum coagulation, more than67% ammonia and 70%–100% N-nitrosamine precursors were removed by Mordenite zeolite(except 3-(dimethylaminomethyl)indole(DMAI) and 4-dimethylaminoantipyrine(DMAP)). PAC effectively removed DMAI and DMAP when added during alum coagulation. A combination of the zeolite and PAC selected efficiently removed ammonia and all tested seven N-nitrosamine precursors(dimethylamine(DMA), ethylmethylamine(EMA), diethylamine(DEA), dipropylamine(DPA), trimethylamine(TMA), DMAP, and DMAI) during the alum coagulation process.Runmiao Xue Ariel Donovan Haiting Zhang Yinfa Ma Craig Adams John Yang Bin Hua Enos Inniss Todd Eichholz Honglan Shi 2018Journal of Environmental Sciences2018,30,2:7
2Bowel preparation with split-dose polyethylene glycol before colonoscopy: a meta-analysis of randomized controlled trials显示文摘Todd W. Kilgore Abdillahi A. Abdinoor Nicholas M. Szary Samuel W. Schowengerdt Jamie B. Yust Abhishek Choudhary Michelle L. Matteson Srinivas R. Puli John B. Marshall Matthew L. Bechtold 2011Gastrointestinal Endoscopy2011,,6:6
3美国结直肠外科医师协会2019版肠道准备在择期结直肠手术中的应用临床实践指南显示文摘美国结直肠外科医师协会(The American Society of Colon and Rectal Surgeons,ASCRS)于2019年1月公布了最新的肠道准备在择期结直肠手术中的应用临床实践指南。该指南是由国际知名结直肠外科专家组成的临床实践指南委员会修订,对肠道准备的一些争议进行了汇总和分析。John Migaly,M.D. Andrea C.Bafford,M.D. Todd D.Francone,M.D.,M.P.H. Wolfgang B.Gaertner,M.D.,M.Sc. Cagla Eskicioglu,M.D.,M.Sc.,F.R.C.S.C. Liliana Bordeianou,M.D.,M.P.H. Daniel L.Feingold,M.D. Scott R.Steele,M.D.,M.B.A. 刘孟承 王恺京 杜涛 傅传刚 2019结直肠肛门外科2019,25,4:6
4Quality indicators for colonoscopy显示文摘Douglas K. Rex John L. Petrini Todd H. Baron Amitabh Chak Jonathan Cohen Stephen E. Deal Brenda Hoffman Brian C. Jacobson Klaus Mergener Bret T. Petersen Michael A. Safdi Douglas O. Faigel Irving M. Pike 2006Gastrointestinal Endoscopy2006,,4:4
5A lexicon for endoscopic adverse events: report of an ASGE workshop显示文摘Peter B. Cotton Glenn M. Eisen Lars Aabakken Todd H. Baron Matt M. Hutter Brian C. Jacobson Klaus Mergener Albert Nemcek Bret T. Petersen John L. Petrini Irving M. Pike Linda Rabeneck Joseph Romagnuolo John J. Vargo 2010Gastrointestinal Endoscopy2010,,3:3
6Model for end-stage liver disease (MELD) and allocation of donor livers显示文摘Russell Wiesner Erick Edwards Richard Freeman Ann Harper Ray Kim Patrick Kamath Walter Kremers John Lake Todd Howard Robert M. Merion Robert A. Wolfe Ruud Krom 2003Gastroenterology2003,,1:2
7Quality indicators for colonoscopy显示文摘Douglas K. Rex John L. Petrini Todd H. Baron Amitabh Chak Jonathan Cohen Stephen E. Deal Brenda Hoffman Brian C. Jacobson Klaus Mergener Bret T. Petersen Michael A. Safdi Douglas O. Faigel Irving M. Pike 2006Gastrointestinal Endoscopy2006,,4:2
8A detailed study of metallic glass formation in copper-hafnium-titanium alloys显示文摘Recently we have reported a number of bulk glass forming compositions in the CuHf-Ti system,with the critical thickness for complete glass formation,dc,ranging from 2 mm to 4 mm.In order to improve the glass forming ability (GFA) getting even larger dc,the prevailing approach is to use complex multicomponent systems.This strategy has been investigated by us for the Cu-Hf-Ti bulk glass forming alloy Cu55Hf25Ti20 using >1 at.pct additions of B,Y,Nb,Ta,Al,Mn,Si or V but with no significant improvement in the GFA.Clearly,it is necessary,in order to utilise the full potential of the base ternary system,to identify the best glass-forming compositions as a basis for extending the search into multi-dimensional compositional space.Thus,CuxHfyTiz alloys,where x=(40-70) at.pct,y=(5-30) at.pct,and z=(10-36) at.pct,were prepared by melt spinning andcopper mould suction-casting.The composition dependence of the GFA for the Cu-Hf-Ti alloys,as measured by dc for rod and ribbon samples,is reported over the composition range given above.Ignacio A.Figueroa Sandro Baez-Pimiento John D.Plummer Omar Novelo-Peralta Hywell A.Davies Iain Todd 2012Acta Metallurgica Sinica(English Letters)2012,25,6:2
9Is There a Role for Endoscopic Therapy as a Definitive Treatment for Post-Laparoscopic Bile Duct Injuries?显示文摘Javairiah Fatima Joshua G. Barton Travis E. Grotz Zhimin Geng William S. Harmsen Marianne Huebner Todd H. Baron Michael L. Kendrick John H. Donohue Florencia G. Que David M. Nagorney Michael B. Farnell 2010Journal of the American College of Surgeons2010,,4:2
10A randomized trial comparing uncovered and partially covered self-expandable metal stents in the palliation of distal malignant biliary obstruction显示文摘Jennifer J. Telford David L. Carr-Locke Todd H. Baron John M. Poneros Brenna C. Bounds Peter B. Kelsey Robert H. Schapiro Christopher S. Huang David R. Lichtenstein Brian C. Jacobson John R. Saltzman Christopher C. Thompson David G. Forcione Christopher J 2010Gastrointestinal Endoscopy2010,,:2
112009 Canadian Cardiovascular Society/Canadian guidelines for the diagnosis and treatment of dyslipidemia and prevention of cardiovascular disease in the adult – 2009 recommendations显示文摘Jacques Genest Ruth McPherson Jiri Frohlich Todd Anderson Norm Campbell André Carpentier Patrick Couture Robert Dufour George Fodor Gordon A. Francis Steven Grover Milan Gupta Robert A. Hegele David C. Lau Lawrence Leiter Gary F. Lewis Eva Lonn G.B. John 2009Canadian Journal of Cardiology2009,,10:2
12Guidelines for the ultrasound assessment of endothelial-dependent flow-mediated vasodilation of the brachial artery显示文摘Mary C Corretti Todd J Anderson Emelia J Benjamin David Celermajer Francois Charbonneau Mark A Creager John Deanfield Helmut Drexler Marie Gerhard-Herman David Herrington Patrick Vallance Joseph Vita Robert Vogel 2002Journal of the American College of Cardiology2002,,:2
13A lexicon for endoscopic adverse events: report of an ASGE workshop显示文摘Peter B. Cotton Glenn M. Eisen Lars Aabakken Todd H. Baron Matt M. Hutter Brian C. Jacobson Klaus Mergener Albert Nemcek Bret T. Petersen John L. Petrini Irving M. Pike Linda Rabeneck Joseph Romagnuolo John J. Vargo 2010Gastrointestinal Endoscopy2010,,3:2
14A 300-MS/s 14-bit Digital-to-Analog Converter in Logic CMOS显示文摘John Hyde Todd Hμmes Chris Diorio 2003IEEE Journal of Solid-State Circuits2003,38,5:1
15A pilot study of vitamin E versus vitamin E and pioglitazone for the treatment of nonalcoholic steatohepatitis显示文摘Arun J. Sanyal Pouneh S. Mofrad Melissa J. Contos Carol Sargeant Velimir A. Luketic Richard K. Sterling R. Todd Stravitz Mitchell L. Shiffman John Clore Alan S. Mills 2004Clinical Gastroenterology and Hepatology2004,,12:1
16Injury of the Posterior Ligamentous Complex of the Thoracolumbar Spine: A Prospective Evaluation of the Diagnostic Accuracy of Magnetic Resonance Imaging显示文摘Alexander R. Vaccaro Jeffrey A. Rihn Davor Saravanja David G. Anderson Alan S. Hilibrand Todd J. Albert Michael G. Fehlings William Morrison Adam E. Flanders John C. France Paul Arnold Paul A. Anderson Brian Friel David Malfair John Street Brian Kwon Scot 2009Spine2009,,23:1
17Gene expression of collagen type Ⅱ and Ⅸ correlates with uhrastructural event in early OA: new applications of the rabbit meniscectomy model 显示文摘Todd P Andrew M John M 1997J Rheumatol1997,24,:1
18Initiation of Allopurinol at First Medical Contact for Acute Attacks of Gout: A Randomized Clinical Trial显示文摘Thomas H. Taylor John N. Mecchella Robin J. Larson Kevin D. Kerin Todd A. MacKenzie 2012The American Journal of Medicine2012,,11:1
19SmartArc-Based Volumetric Modulated Arc Therapy for Oropharyngeal Cancer: A Dosimetric Comparison With Both Intensity-Modulated Radiation Therapy and Helical Tomotherapy显示文摘Stefania Clemente BinBin Wu Giuseppe Sanguineti Vincenzo Fusco Francesco Ricchetti John Wong Todd McNutt 2011International Journal of Radiation Oncology, Biology, Physics2011,,:1
20The Role of Tissue Factor Pathway Inhibitor in Tumor Growth and Metastasis显示文摘Ali Amirkhosravi Todd Meyer Mildred Amaya Monica Davila Shaker Mousa Theresa Robson John Francis 2007Semin Thromb Hemost2007,,07:1
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