نتایج جستجو برای: r50

تعداد نتایج: 179  

2009
David E. Rosenberg

The galactic correlations of dynamic mass and luminosity, luminosity and color, R50 and R90, MHI and R50, and now surface brightness and R50, means that galactic structure must be controlled by a single parameter. A shell at origin can supply the supermassive black holes to form galaxies in a concerted pattern, updated.

2012

A total of 192 Hyplus rabbits (male and female ratio 1:1) of weaning age 35 d were randomly divided into three experimental groups (n=64 each), group 1 was fed ad libitum (control), group 2 (R50) was restricted from 42 to 49 d of age (50 g/d/rabbit), and group 3 (R65) was restricted from 42 to 49 d of age (65 g/d/rabbit). After the restriction time, all the groups were back to ad libitum feedin...

2003
P. K. MALLICK

The hole stress concentration effects on the tensile strength of SMC-R50 sheet moulding compound composites were studied with consideration being given to both centric and eccentric hole locations. It is shown that the tensile strength of the R50 material is improved by applying a transverse normal pressure around the hole boundary. A few preliminary experiments indicate that the fatigue life o...

2017
Neha P. Amin Adrian Nalichowski Shauna Campbell Jal Hyder Robyn Spink Andre A. Konski Michael Dominello

PURPOSE We observed that many of our helical therapy lung stereotactic body radiation therapy plans did not meet the Radiation Therapy Oncology Group (RTOG) recommended R50% (volume of 50% of the prescription dose/planning target volume), which characterizes the steepness of dose fall off. We hypothesized that despite not meeting R50%, helical therapy lung stereotactic body radiation therapy pl...

Journal: :Theoretical and Applied Climatology 2021

Episodes of heat stress constrain crop production and will be aggravated in the near future according to short medium-term climate scenarios. Global increase cloudiness has also been observed, decreasing incident solar radiation. This work was aimed quantify probability occurrence cloudiness, alone or combined, during typical post-flowering period wheat canola Southern Cone South America. Exten...

2007
STAFFAN ANDERSSON MARIA PRAGER

1. Ornamental carotenoid coloration is commonly based on several different pigments with different nutritional and metabolic constraints. The identification and quantification of carotenoid pigments is therefore crucial to the understanding of signal content and signal evolution. 2. In male widowbirds ( Euplectes spp.), the striking yellow and red carotenoid colours have been measured by reflec...

Journal: :Physics in medicine and biology 2008
K Zink J Wulff

Current dosimetry protocols (AAPM, IAEA, DIN) recommend the use of parallel-plate ionization chambers for the measurement of absorbed dose-to-water in clinical electron beams. For well-guarded plane-parallel chambers, it is assumed that the perturbation correction pQ is unity for all electron energies. In this study, we present detailed Monte Carlo simulations with the EGSnrc code for the widel...

Journal: :Journal of the Meteorological Society of Japan 2022

Knowledge about tropical cyclone (TC) size is essential for disaster prevention and mitigation strategies, but due to the limitations of observations, TC data from open ocean are scarce. In this paper, several models developed identify parameters, including radius maximum wind (RMW) radii 34 (R34), 50 (R50), 64 (R64) knot winds, using various machine learning algorithms based on infrared channe...

2008
K Zink J Wulff

Current dosimetry protocols (AAPM, IAEA, DIN) recommend the use of parallel-plate ionization chambers for the measurement of absorbed dose-towater in clinical electron beams. For well-guarded plane-parallel chambers, it is assumed that the perturbation correction pQ is unity for all electron energies. In this study, we present detailed Monte Carlo simulations with the EGSnrc code for the widely...

Journal: :Acta cirurgica brasileira 2015
Matheus Fécchio Pinotti Adriana Hepner Dijon Henrique Salomé Campos Leopoldo Muniz Silva Antonio Carlos Cicogna Eliana Marisa Ganem

PURPOSE To study racemic bupivacaine, non-racemic bupivacaine and ropivacaine on myocardial contractility. METHODS Isolated Wistar papillary muscles were submitted to 50 and 100 mM racemic bupivacaine (B50 and B100), non-racemic bupivacaine (NR50 and NR100) and ropivacaine (R50 and R100) intoxication. Isometric contraction data were obtained in basal condition (0.2 Hz), after increasing the f...

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