نتایج جستجو برای: zinc efficiency

تعداد نتایج: 458916  

2015
Arun Khalkar Kwang-Soo Lim Seong-Man Yu Dong-Wook Shin Tae-Sik Oh Ji-Beom Yoo

We report herein Cu 2 ZnSnS 4 (CZTS) thin film solar cells with 6.75% conversion efficiency, without an antireflection coating. The CZTS precursors have been prepared by cosputtering using three different targets onMo-coated substrates: copper (Cu), tin sulfide (SnS), and zinc (Zn). The postsulfurization was carried out at different pressures in a H 2 S/N 2 environment at 550C for one hour. A c...

2014
Robert L Z Hoye Bruno Ehrler Marcus L Böhm David Muñoz-Rojas Rashid M Altamimi Ahmed Y Alyamani Yana Vaynzof Aditya Sadhanala Giorgio Ercolano Neil C Greenham Richard H Friend Judith L MacManus-Driscoll Kevin P Musselman

Colloidal quantum dot solar cells (CQDSCs) are attracting growing attention owing to significant improvements in efficiency. However, even the best depleted-heterojunction CQDSCs currently display open-circuit voltages (VOCs) at least 0.5 V below the voltage corresponding to the bandgap. We find that the tail of states in the conduction band of the metal oxide layer can limit the achievable dev...

Journal: :The Journal of nutrition 2000
E Mocchegiani M Muzzioli

The relevance of zinc in resistance to infections by virus, fungi and bacteria is recognized because of its pivotal role in the efficiency of the entire immune system, in particular in conferring biological activity to a thymic hormone called thymulin, which has differentiation properties on T-cell lines. In infection with human immunodeficiency virus (HIV), the zinc-bound form of thymulin (act...

Abouee Mehrizi, Ehsan, Ghorbanpour, Reza , Yazdani Charati, Jamshid , Zazouli, Mohammad Ali,

Background and purpose: One of the main problems of pollution of aquatic environments is hardly biodegradable chemicals with high toxicity such as antibiotics. If they are not removed from the wastewater, particularly the hospital wastewater, many health and environmental hazards are created. Therefore, appropriate management and treatment of this type of wastewater is highly necessary. This re...

Ahmadreza Sajadi Sasan Talebi,

In this study, for the first time, the heat transfer and the pressure drop of zinc oxide nanoparticles in alternating elliptical axis (AEA) tube have been investigated experimentally. The zinc oxide nanoparticles were at volumetric concentrations 1% and 2%. The base fluid was heat transfer oil and the experiments were conducted at constant wall temperature. Also, the study was done in Reynolds ...

Journal: :تحقیقات آب و خاک ایران 0
فرشته ولیزاده فرد دانشجوی سابق کارشناسی ارشد، گروه علوم خاک دانشگاه تبریز عادل ریجانی تبار استادیار گروه علوم خاک دانشگاه تبریز نصرت اله نجفی دانشیار گروه علوم خاک دانشگاه تبریز شاهین اوستان دانشیار گروه علوم خاک دانشگاه تبریز

cadmium is one of the most toxic pollutants in the surface soil layer the accumulation of which in soils as well as in crops is of increasing concern. in addition, zinc is a micronutrient in rice nutrition which is in interaction with cd. a pot experiment was carried out to study the effects of zinc and cadmium on rice growth and as well on concentrations of zn, cd, fe and mn in soil. a factori...

2009
Harish Kumar Vishal Saini Dheeraj Kumar

The cooling water chemistry has changed steadily over the past decade. Use of high performance antiscalants, corrosion inhibitors, polymer for better dispersion, total prevention of microbial deposits by using powerful biocides and biodispersants, pH boosters and advanced hardness stabilizers is the current practice. But addition of so many different chemicals to the cooling water system (CWS) ...

2016
Xia-Yun Jiang Fei Hou Xiao-Dan Shen Xue-Di Du Hai-Li Xu Shu-Ming Zou

Active Hobo/Activator/Tam3 (hAT) transposable elements are rarely found in vertebrates. Previously, goldfish Tgf2 was found to be an autonomously active vertebrate transposon that is efficient at gene-transfer in teleost fish. However, little is known about Tgf2 functional domains required for transposition. To explore this, we first predicted in silico a zinc finger domain in the N-terminus of...

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