نتایج جستجو برای: pi 253541 8

تعداد نتایج: 694758  

Journal: :Respiratory care 2003
Yuji Fujino Akinori Uchiyama Takashi Mashimo Masaji Nishimura

INTRODUCTION Automatic tube compensation (ATC), a new ventilation mode that compensates for the work of breathing imposed by endotracheal tube resistance, recently became commercially available. METHODS We conducted a laboratory study with a lung model and a Nellcor Puritan Bennett 840 ventilator to compare ATC and pressure-support ventilation (PSV). A bellows-in-a-box lung model simulated sp...

Journal: :Annals of Global Analysis and Geometry 2021

Abstract We show that the homogeneous and 2-lobe Delaunay tori in 3-sphere provide only isothermic constrained Willmore 3-space with energy below $$8\pi $$ 8 π . In particular, every torus non-rectangular conformal class is non-degenerated.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی 1390

موضوع پایداری در میکروشبکه ها همچون سیستم های قدرت سنّتی، مولفه مهمی برای مدیریت انرژی و برنامه ریزی می باشد. پایداری ولتاژ و فرکانس از مهمترین مواردی است که اخیراً در زمینه میکروشبکه ها مطالعه شده است. هدف از انجام این پایان نامه، طراحی و مدلسازی عناصر و کنترلرها و ارائه روش های جدیدی برای کنترل ولتاژ در یک میکروشبکه هیبرید ac/dc و در شرایط وقوع اغتشاشات مختلف می باشد. همچنین توانایی این روش ها ...

Journal: :Physical review letters 2009
P Naik J Rademacker D M Asner K W Edwards J Reed A N Robichaud G Tatishvili R A Briere H Vogel P U E Onyisi J L Rosner J P Alexander D G Cassel J E Duboscq R Ehrlich L Fields R S Galik L Gibbons R Gray S W Gray D L Hartill B K Heltsley D Hertz J M Hunt J Kandaswamy D L Kreinick V E Kuznetsov J Ledoux H Mahlke-Krüger D Mohapatra J R Patterson D Peterson D Riley A Ryd A J Sadoff X Shi S Stroiney W M Sun T Wilksen S B Athar J Yelton P Rubin S Mehrabyan N Lowrey M Selen E J White J Wiss R E Mitchell M R Shepherd D Besson T K Pedlar D Cronin-Hennessy K Y Gao J Hietala Y Kubota T Klein R Poling A W Scott P Zweber S Dobbs Z Metreveli K K Seth B J Y Tan A Tomaradze J Libby L Martin A Powell G Wilkinson H Mendez J Y Ge D H Miller V Pavlunin B Sanghi I P J Shipsey B Xin G S Adams D Hu B Moziak J Napolitano Q He J Insler H Muramatsu C S Park E H Thorndike F Yang M Artuso S Blusk S Khalil J Li R Mountain K Randrianarivony N Sultana T Skwarnicki S Stone J C Wang L M Zhang G Bonvicini D Cinabro M Dubrovin A Lincoln K M Ecklund

Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this re...

Journal: :Physical review 2021

We show how in the standard electroweak model three $SU(2)_L$ Nambu monopoles, each carrying electromagnetic (EM) and Z- magnetic fluxes, can merge (through Z-strings) with a single $U(1)_Y$ Dirac monopole to yield composite that only carries EM flux. Compatibility quantization condition requires this carry six quanta ($12 \pi /e$) of charge, independent mixing angle $\theta_w$. The is not regu...

Journal: :Dalton transactions 2009
Elvin A Alemán Carol D Shreiner Cheruvallil S Rajesh Timothy Smith Shana A Garrison David A Modarelli

The synthesis and photophysical characterization of two different series of electron donor-acceptor dyads containing Ru(II) and Os(II) bis-terpyridines (M(tpy)(2)(2+)) were prepared and studied in order to compare the oft-studied Ru(tpy)(2)(2+) chromophore with the less studied Os(tpy)(2)(2+) chromophore. The first series of dyads incorporates a benzoquinone (BQ) group as the electron acceptor,...

Journal: :The Journal of clinical investigation 1983
C G Cochrane R Spragg S D Revak

Evidence is presented indicating that oxidants are generated in lungs of patients with the adult respiratory distress syndrome (ARDS). The evidence was derived from observations that alpha-1-PI, recovered in bronchoalveolar lavage (BAL) fluid, had been inactivated by oxidation, presumably oxidation of the methionyl residue in the reaction site of the molecule. This was indicated by findings tha...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید