نتایج جستجو برای: plasma conversion

تعداد نتایج: 463241  

Journal: :Antimicrobial agents and chemotherapy 2013
Shalini Yapa Jian Li Christopher J H Porter Roger L Nation Kashyap Patel Michelle P McIntosh

Colistin methanesulfonate (CMS), the inactive prodrug of colistin, is administered by inhalation for the management of respiratory infections. However, limited pharmacokinetic data are available for CMS and colistin following pulmonary delivery. This study investigates the pharmacokinetics of CMS and colistin following intravenous (i.v.) and intratracheal (i.t.) administration in rats and deter...

2001
A. K. Ram A. Bers C. N. Lashmore-Davies

it has been shown that, in overdense plasmas of the type encountered in spherical tori, electron Bernstein waves can be excited in a plasma by mode conversion of either an externally launched X mode or an O mode. The electron Bernstein waves are strongly absorbed by electrons in the region where the wave frequency matches the Doppler broadened electron cyclotron resonance frequency or its harmo...

2007
M. Magureanu N. B. Mandache V. I. Parvulescu A. Renken

The decomposition of trichloroethylene (TCE) by non-thermal plasma was investigated in a dielectric barrier discharge (DBD) reactor with a copper rod inner electrode and compared with a plasma-catalytic reactor. The particularity of the plasma-catalytic reactor is the inner electrode made of sintered metal fibers (SMF) coated by transition metal oxides. In order to optimize the geometry of the ...

Journal: :Neuro-degenerative diseases 2009
Michael C Irizarry Rema Raman Michael A Schwarzschild Lida M Becerra Ronald G Thomas Ronald C Peterson Alberto Ascherio Paul S Aisen

BACKGROUND Impaired antioxidant defenses are implicated in neurodegenerative disease. The plasma levels of urate, a water-soluble antioxidant, are reduced in Alzheimer's disease (AD). OBJECTIVE We aimed to test the hypotheses that high plasma urate at baseline is associated with: (1) a reduced rate of conversion from mild cognitive impairment (MCI) to AD and (2) a lower rate of cognitive decl...

Journal: :The Journal of clinical investigation 1967
R Horton S D Frasier

The plasma concentration, production rate, and conversion ratio of androstenedione and testosterone were studied in seven children with congenital adrenal hyperplasia (CAH) of the 21-hydroxylase type. Plasma androstenedione and testosterone measured by double isotope derivative assay and estimated blood production rates were manyfold increased in the untreated state, markedly suppressed with gl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...

Journal: :Energies 2022

Global warming, along with increasing global energy demands, has led to the need for a sustainable and low-carbon-based economy. In addition renewable technologies, such as biomass, solar, hydro, wind, another possible strategy mitigate climate change is capture/conversion recycling of CO2. recent years, many methods both CO2 capture (mainly adsorption, absorption, membrane) conversion (many el...

دوستی, محمود, رضایی, شهلا, صالحی‌پور, مسعود, نفیسی, شهریار, ورداسبی جویباری, صفورا, گلستانی, ابوالفضل, گلمحمدی, تقی,

Background: Thymidine phosphorylase (TP) catalyses the conversion of thymidine into thymine. Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an autosomal recessive disease which is caused by mutations in the nuclear gene encoding TP, bringing about severe impairment of TP-enzyme specific activity and accumulation of thymidine in plasma. The clinical manifestations of MNGIE are ...

Journal: : 2023

For the first time, experiments were carried out on decomposition of carbon dioxide in a plasma torch maintained by continuous focused gyrotron radiation with frequency 263 GHz an argon flow at atmospheric pressure. It is shown that, despite decrease electron density factor 5, when 3% added to plasma-forming gas, it possible achieve its degree conversion 22% due nonequilibrium nature maintainin...

Journal: :Journal of CO2 utilization 2022

Anthropogenic greenhouse gas emissions have caused changes to the Earth’s climate, resulting in catastrophic weather events that are becoming more frequent and intense. Developing carbon-neutral processes for CO2 conversion powered by renewable energy is one way of attaining a circular economy, as waste converted new carbon-containing product, without also being created by-product during proces...

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