نتایج جستجو برای: ستونهای pec

تعداد نتایج: 2068  

Journal: :Physical chemistry chemical physics : PCCP 2015
Divya Bohra Wilson A Smith

Photoelectrochemical (PEC) water splitting offers a clean pathway to renewable and sustainable energy in the near future. The key to improving the efficiency of PEC devices is the ability to find materials with suitable optoelectronic properties, and identifying, then overcoming their limitations. In this paper, we explore the photoelectrochemical performance of CuWO4 photoanodes for solar wate...

2012
Yanqing Cong Hyun S. Park Hoang X. Dang Fu-Ren F. Fan Allen J. Bard Buddie Mullins

Tantalum cobalt nitride photocatalysts were prepared using a simple drop coating method on a Ta foil substrate followed by thermal ammonia treatment, and their photoelectrochemical (PEC) properties for water oxidation under visible light were studied. The resulting Ta0.9Co0.1Nx films showed a photocurrent of ca. 1.5 mA/cm (12 times higher than that of Ta3N5) under 100 mW/cm visible light irradi...

Journal: :International journal of biological macromolecules 2018
Mahmoud H Abu Elella Riham R Mohamed Marwa M Abdel-Aziz Magdy W Sabaa

The present study is imported to solve two critical problems we face in our daily life which are microbial pollution and colon cancer. One pot green synthesis of a water soluble polyelectrolyte complex (PEC) between cationic polysaccharide as N,N,N-trimethyl chitosan chloride (TMC) and anionic polymer as poly (acrylic acid) (PAA) in presence of silver nanoparticles to yield (TMC/PAA/Ag) nanocom...

2017
Quan-Bao Ma Jan P. Hofmann Anton Litke Emiel J.M. Hensen

Cuprous oxide (Cu2O) films were grown by electrodeposition in aqueous solutions of varying pH. The effect of bath pH on morphology, structural, and photoelectrochemical (PEC) properties of Cu2O films was investigated. XRD showed that all prepared films were polycrystalline Cu2O, without formation of competing phases such as CuO and Cu. The film grown in the solution with a pH of 8 is made up of...

2017
Thomas J.G. Chase Joshua Luck Lauren S. Harris Gareth Bashir

A 68-year-old male nursing home resident presented following dislodgement of a percutaneous endoscopic colostomy (PEC) tube originally sited to prevent recurrent sigmoid volvulus. Computed tomography demonstrated tube migration into the lumen of the recto-sigmoid junction, where it remained for 12 days before passing spontaneously. During this period, the patient remained asymptomatic; the resi...

Journal: :international journal of environmental research 2013
o. veses r. mosteo m.p. ormad j.l. ovelleiro

pollution deriving from trace elements (cd, cu, ni, pb, zn, hg, as and cr) in sediment samples(collected in 2009), belonging to rivers located in catalonia and the basque country (spain), was assessedaccording to sediment quality guidelines. sediment samples were ranked in terms of a pollution index thattakes into account the presence of multiple pollutants such as trace elements. while only ab...

Journal: :Endoscopy International Open 2016

Journal: :Revista Estudos Feministas 2021

Resumo: O trabalho doméstico remunerado passou por diversas mudanças legais, simbólicas e culturais na última década. Destaca-se a aprovação da Lei Complementar nº 150/2015, conhecida como “PEC das Domésticas”. objetivo deste artigo é analisar quais as consequências dessa nova legislação o que ela tem impactado nas desigualdades que, historicamente, marcam essa categoria profissional. A análise...

Journal: :Archivio italiano di urologia, andrologia : organo ufficiale [di] Societa italiana di ecografia urologica e nefrologica 2014
Giulia Sbrollini Alessandro Conti Andrea Benedetto Galosi Vito Lacetera Rodolfo Montironi Lorenzo Montesi Giovanni Muzzonigro

INTRODUCTION We describe a rare tumor arising from the prostate gland: Perivascular Epithelioid Cells tumor (PEC-ome). A 54-years old was treated for acute urinary retention with alpha-blockers at presentation due to benign prostate enlargement (65 cc) with asymmetric middle lobe and regular PSA (0.92 ng/ml). After 5 months, patient developed a second acute urinary retention episode and nodules...

2016
David Vehlow Romy Schmidt Annett Gebert Maximilian Siebert Katrin Susanne Lips Martin Müller

An improved interfacial drug delivery system (DDS) based on polyelectrolyte complex (PEC) coatings with controlled drug loading and improved release performance was elaborated. The cationic homopolypeptide poly(l-lysine) (PLL) was complexed with a mixture of two cellulose sulfates (CS) of low and high degree of substitution, so that the CS and PLL solution have around equal molar charged units....

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