نتایج جستجو برای: hf limit

تعداد نتایج: 210549  

2017
C. Boulet A. Rosenberg

2014 As a sequel to a previous theoretical study of pressure induced lineshifts in the spectra of diatomic molecules pressurized by polar gases, some new experimental results became recently available and are reported in this paper. They concern the shifts in the HF(0-2) band due to HCl, and the HCl(0-1) and HCl(0-2) bands due to HF, for which predictions have been previously published. In the ...

2017
J. Arellano-Padilla M. Sumner C. Gerada

This paper evaluates the capability of saliency tracking to assess the health condition of permanent magnet synchronous motor (PMSM) drives operating under nonstationary conditions. The evaluated scheme is based on saliency tracking methods, which are associated to the accurate sensorless control of AC drives without zero speed limitations. In this work two representative saliency tracking arch...

Journal: :Journal of chromatographic science 2014
Xiaotian Liu Shumei Liang Jie Pan Yugao Guo Huiru Luo Qingsong Zhao Shan Guan

In high-throughput ultrasonication enhanced hollow-fiber liquid-phase microextraction (H-U-HF-LPME), ultrasonication was introduced into HF-LPME to enhance the mass transfer rate of the analytes in the two immiscible liquid phases, which resulted in a very short time for extraction equilibrium and a high-throughput analysis. Several parameters were investigated and optimized (such as extraction...

Hydraulic fracturing (HF), as a stimulation technique in petroleum engineering, has made possible the oil production from reservoirs with very low permeability. The combination of horizontal drilling and multiple HF with various perforation angles has been widely used to stimulate oil reservoirs for economical productions. Despite the wide use of HF, there are still ambiguous aspects that requi...

Background: Heart failure (HF) has become one of the most prevalent cardiovascular problems worldwide. Considering the beneficial effects of probiotics on human health, we aimed to investigate the anti-inflammatory effect of oral administration of Lactobacillus paracasei in HF induced by isoproterenol. Methods: Forty Wistar male rats weighing 80g on average were randomly assigned to five grou...

Journal: :international journal of nano dimension 0
s. amirtharajan nanoscience research lab, department of physics, vhnsn college (autonomous), virudhunagar, 626 001, india. p. jeyaprakash nanoscience research lab, department of physics, vhnsn college (autonomous), virudhunagar, 626 001, india. j. natarajan nanoscience research lab, department of physics, vhnsn college (autonomous), virudhunagar, 626 001, india. p. natarajan nanoscience research lab, department of physics, vhnsn college (autonomous), virudhunagar, 626 001, india.

porous silicon (ps) samples have been prepared by electrochemical anodization of p-type silicon wafer by varying hf concentrations in the electrolytic solution. the structural, surface morphological, optical and surface composition analysis of the prepared samples were done by x-ray diffraction (xrd), scanning electron microscopy (sem), photoluminescence (pl) and fourier transform infrared (fti...

2017
Andrew W. Hibbert François Billaut Matthew C. Varley Remco C. J. Polman

Introduction: Exercise performance is reproducible in experienced athletes; however, less trained participants exhibit greater variability in performance and pacing. To reduce variability, it is common practice to complete a familiarization prior to experimental testing. However, there are no clear guidelines for familiarizing novice participants to a cycling time-trial (TT), and research findi...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2010
M L Margiocco M Borgarelli T I Musch D M Hirai K S Hageman R J Fels A A Garcia M J Kenney

Sympathetic nerve discharge (SND) responses to hyperthermia are attenuated in aged rats without heart failure (HF) and in young HF (Y(HF)) rats, demonstrating that individually aging and HF alter SND regulation. However, the combined effects of aging and HF on SND regulation to heat stress are unknown, despite the high prevalence of HF in aged individuals. We hypothesized that SND responses to ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید