نتایج جستجو برای: rfw

تعداد نتایج: 46  

2008
V Polyakova S Miyagawa Z Szalay J Risteli S Kostin

UNLABELLED Atrial fibrillation (AF) is the most frequent clinical arrhythmia. Atrial fibrosis is an important factor in initiating and maintaining AF. However, the collagen turnover and its regulation in AF has not been completely elucidated. We tested the hypothesis that the extracellular matrix changes are more severe in patients with permanent AF in comparison with those in patients in sinus...

2012
Susan L. Epstein Rebecca J. Passonneau Tiziana Ligorio Joshua B. Gordon

Spoken dialogue is increasingly central to systems that assist people. As the tasks that people and machines speak about together become more complex, however, users’ dissatisfaction with those systems is an important concern. This paper presents a novel approach to learning for spoken dialogue systems. It describes embedded wizardry, a methodology for learning from skilled people, and applies ...

A. Akbari, G. Jelodar, P. Parvaeei, S. Nazifi,

Background: Radio frequency wave (RFW) generated by mobile phones and wireless communication systems has been reported to cause adverse effects on reproductive function, vision and hematological parameters, possibly through oxidative stress. The aim of this study was to evaluate the effect of RFW generated bybase transceiver station BTS on oxidative stress in testis, eye and erythrocyte, and th...

Journal: :IOP conference series 2021

Abstract Molybdenum-99 ( 99 Mo) is a parent radioisotope of Technetium-99m 99m Tc) widely used in nuclear diagnostics. The production this by PT. INUKI generated radioactive fission waste (RFW) that theoretically contains 239 Pu and 235 U, posing proliferation risk. This paper discusses the determination radionuclides inventory RFW proposed strategy for its management. was calculated using ORIG...

F. Namazi, F. Soleimani, G.A. Jelodar, M. Azimzadeh,

Background: Exposure to electromagnetic radiation may impair memory. This study was conducted to evaluate the effect of radiofrequency wave (hereafter referred to as RFW) on passive avoidance learning and memory in healthy males and females. Materials and Methods: Ten adult male and ten female Sprague-Dawley rats (230±20 gr) were randomly divided into four groups including two control groups (o...

Journal: :British heart journal 1980
A Rynkiewicz E Semetkowska-Jurkiewicz B Wyrzykowski

Systolic and diastolic time intervals were used to examine left ventricular performance in 22 young diabetic men (mean age 25 years) with no apparent clinical heart disease. Pre-ejection period index (PEPI), left ventricular ejection time index (LVETI), electromechanical systole index (QS2I), PEP to LVET ratio, the a wave percentage amplitude of the apexcardiogram (a/H5 ratio), the rapid fillin...

Journal: :Journal of Fundamental and Applied Sciences 2021

The presence of organic matter in agricultural soils is an important factor assessing the conditions soils. BRF and Manure are energy inputs that can improve soil. objective our work to study influence contribution Rameal Fragmented Wood (RFW) cattle manure absence earthworms Octodrilus complanatus on germination rate (%) durum wheat (Tritucum durum) Hedba 3 variety. station located a semi-arid...

Journal: :Journal of manufacturing and materials processing 2022

Due to the different properties of materials, fusion welding dissimilar metals may be difficult. Structural irregularities form as a result various phase transformations during welding. Solid-state welding, opposed occurs below melting temperature. As and solidification phenomena that happen in solid-state is expected reduce potential for transformation. This paper describes use rotary friction...

2005

With the RFW metric ds = dt − R(t)d~x, the scale factor grows exponentially R(t) = R(0)e. We now switch to the conformally flat metric ds = R(η)(dη − d~x). Therefore, dt = R(η)dη, or equivalently, dη = ±R(t)−1dt = ±R(0)−1e−Htdt. Note that η is nothing but the size of the particle horizon, namely the comoving distance for which the light could propagate since the initial time. This differential ...

Journal: :Acta Metallurgica Slovaca 2023

The primary goal of this study is to implement the Rotary Friction Welding (RFW) process join similar Ti6Al4V welds. experimental procedure involves deliberate manipulation input parameters, including rotational speed, friction pressure, and time, through utilization Taguchi's L9 orthogonal array methodology. This approach facilitated using MINITAB software generate a visual representation resp...

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