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106篇 您的检索式:作者名="BEARD A P"
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1Through-needle all-optical ultrasound imaging in vivo: a preclinical swine study显示文摘High-frequency ultrasound imaging can provide exquisite visualizations of tissue to guide minimally invasive procedures.Here,we demonstrate that an all-optical ultrasound transducer,through which light guided by optical fibers is used to generate and receive ultrasound,is suitable for real-time invasive medical imaging in vivo.Broad-bandwidth ultrasound generation was achieved through the photoacoustic excitation of a multiwalled carbon nanotube-polydimethylsiloxane composite coating on the distal end of a 300-μm multi-mode optical fiber by a pulsed laser.The interrogation of a high-finesse Fabry–Pérot cavity on a single-mode optical fiber by a wavelength-tunable continuous-wave laser was applied for ultrasound reception.This transducer was integrated within a custom inner transseptal needle(diameter 1.08 mm;length 78 cm)that included a metallic septum to acoustically isolate the two optical fibers.The use of this needle within the beating heart of a pig provided unprecedented realtime views(50 Hz scan rate)of cardiac tissue(depth:2.5 cm;axial resolution:64μm)and revealed the critical anatomical structures required to safely perform a transseptal crossing:the right and left atrial walls,the right atrial appendage,and the limbus fossae ovalis.This new paradigm will allow ultrasound imaging to be integrated into a broad range of minimally invasive devices in different clinical contexts.Malcolm C Finlay Charles A Mosse Richard J Colchester Sacha Noimark Edward Z Zhang Sebastien Ourselin Paul C Beard Richard J Schilling Ivan P Parkin Ioannis Papakonstantinou Adrien E Desjardins 2017Light(Science & Applications)2017,6,1:6
2Comparison of Fixed Film Reactors with a Modeled Sludge Blanket Reactor显示文摘Bachmann A Beard V L McCarty P L 1983Fixed Film Biological Processes for Wastewater Treatment1983,,:1
3Nitric oxide regula- tion of gonadotrophin seeretion in prepubertal heifers显示文摘Honaramooz A Cook S J Beard A P et ol 1999J Neu- roendoerinol1999,11,9:1
4Comparison of fixed film reactors with a modified sludge blanket reactor显示文摘Bachmann A Beard V L Mc Carty P L 1983Pollut Technol Rev1983,10,:1
5The influence of tunnel geometry and ventilation on the heat release rate of fire 显示文摘Carvel R O Beard A N Jowitt P W 2004Fire Technology2004,40,1:1
6A nurse -coordinated educational initiative addressing primary care professionals' attitudes to and problem - solving in depression in older people - A pilot study 显示文摘Livingston G Yard P Beard A 2000International Journal of Geriatric Psychiatry2000,15,:1
7A multidisciplinary field hospital as a substitute for medical hospital care in the aftermath of an earthquake: the experience of the Israeli Defense Forces Field Hospital in Duzce ,Turkey, 1999 显示文摘Bar Dayan Y Leiba A Beard P 2005Prehosp Disaster Med2005,20,2:1
8Ovarian function in ewes at the onset of the breeding season 显示文摘Artlewski P M Beard A P Rawling N C 1999Anim-Reprod-Sci1999,57,2:1
9Comparison of fixed film reactors with a modified sludge blanket reactor显示文摘Bachmann A Beard V L Mc Carty P L 1983Pollut Technol Rev1983,10,:1
10Nonlinear dynamics of flashover in compartment fires显示文摘BISHOP S R HOLBORN P G BEARD A N 1993Fire Safety Journal1993,21,1:1
11Reproductive and endocrine function in rams exposed to the organoehlorine pesticides lindane and pentachlorophenol from coneeption显示文摘Beard A P Bartlewski P M Chandolia R K 1999Reprod Fertil1999,115,2:1
12Performance characteristicsof the anaerobic baffled reactor显示文摘Bachmann A Beard V L McCarty P L 1985Wat Res1985,19,1:1
13Performance characteristics of the anaerobic baffled reactor 显示文摘Bachmann A Beard V L McCarty P L 1985Water Research1985,19,1:1
14Kinetic and equilibrium Fe isotope fractionation between aqueous Fe(Ⅱ) and Fe(Ⅲ)显示文摘Welch S A Beard B L Johnson C M Brateman P S 2003Geochim Cosmochim Acta2003,67,22:1
15Performance characteristics of the anaerobic baffled reactor显示文摘 Beard V L McCarty P L 1985Warter Res1985,19,1:1
16Ovarian antral follicular dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolifica- cy 显示文摘BARTLEWSKI P M BEARD A P COOK S J 1999J Reprod Fertil1999,115,1:1
17The influence of longitudinal ventilation systems on fires in tunnels 显示文摘Carvel R O Beard A N Jowitt P W 2001Tunnelling and Underground Space Technology2001,16,1:1
18Performance characteristics of the anaerobic baffled reactor显示文摘Bachmann A Beard V L McCarty P L 1985Wat Res1985,19,1:1
19Multiple exciton gcncration in colloidal silicon nanocrystals显示文摘Beard M C Knutsen K P Yu P Luther J M Song Q Metzger W K Ellingson R J Nozik A J 0,,08:1
20Large animal models for foamy virus vector gene therapy 显示文摘Trobridge GO Hom P A Beard BC 2012Viruses2012,4,12:1
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