نتایج جستجو برای: co

تعداد نتایج: 333020  

2012
A S Murie W D Birrell P A R Hillyard D J D Roche See R S Howard M Chisholm G Manners G C Cameron B D Clark Ireland D Law

D I S C U S S I O N of the economic situation of Northern Ireland has been dominated by persistently high rates of unemployment. Since 1936 these rates have been higher than in any other region o f the United Kingdom. Since the war unemployment rates have not fallen below 5 per cent, local area rates have been as high as 20 per cent and long-term unemployment has accounted for over 50 per cent ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1394

در این کار پژوهشی هیدروکسید دوگانه لا یه ای کبالت –آهن ) co/fe ( به وسیله روش جدید و ساده الکتروشیمیایی روی الکترود کربن شیشه ای سنتز شد. رفتار الکترو شیمیایی co/fe-ldh ترسیب شده روی الکترود کربن شیشه ای درون 1 مولار سود مورد بررسی قرارگرفت. علاوه براین فیلم تهیه شده بوسیله پراش پرتو / محلول 1 x ( xrd (، الگوی) sem ،) والگوی) edx ( بررسی شد. الکترود کربن شیشه ای اصلاح شده با co/fe-ldh برای ا...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1389

در این تحقیق کاتالیست80%co/20%ni/90%la2o3/1%cs به روش تلقیح خشک تهیه شد.سینتیک این کاتالیست در یک میکرو راکتور بستر ثابت بررسی شد.شرایط آزمایشگاهی مختلفی استفاده شد که عبارتند از: دمای 503/15-543/15 کلوین، فشار راکتور2-14 بار، نسبت های خوراک ورودی h2/co = 1-3 و سرعت فضایی .3600 h-1سرعت مصرف co توسط توسط نرم افزار پلی مث محاسبه شد. 34 مدل برای سنتز فیشر-تروپش ارائه شد که با داده های آزمایشگاهی ف...

Journal: :journal of nanostructures 2014
m. farahmandjou f. soflaee

iron oxide (fe2o3) is widely used as a catalyst, pigment and gas sensitive material.  in this article, α-fe2o3 nano-rods were first synthesized via a simple chemical method using iron(iii) nitrate 9- hydrate (fe(no3)3.9h2o) as precursor. xrd pattern showed that the iron oxide nanoparticles exhibited alpha-fe2o3 (hematite) structure in nanocrystals. the single-phase α- fe2o3 nano-rods were prepa...

Journal: :progress in biological sciences 2012
mahnaz aghdasi samaneh fatahi hamid reza sadeghipour

to explore the function of light-harvesting complex protein (lhcp) in arabidopsis growth and development, the leclere and bartel seed collection was screened. in this collection randomly cloned cdnas are expressed under the camv35s promoter. a pale green line has been identified and characterized in more details. analysis of the inserted cdna in the pale green line showed it encodes lhcb1 prote...

Journal: :international journal of health policy and management 2016
jo rycroft-malone christopher r. burton tracey bucknal ian d. graham alison m. hutchinson

over time there has been a shift, at least in the rhetoric, from a pipeline conceptualisation of knowledge implementation, to one that recognises the potential of more collaboration, co-productive approaches to knowledge production and use. in this editorial, which is grounded in our research and collective experience, we highlight both the potential and challenge with collaboration and co-prod...

Journal: :environmental health engineering and management 0
ali asghar najafpoor health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran ahmad hosseinzadeh health sciences research center, department of environmental health engineering, school of health, mashhad university of medical sciences, mashhad, iran somaye allahyari [email protected] allah bakhsh javid department of environmental health engineering, school of health, tehran university of medical sciences, tehran, iran habibollah esmaily health sciences research center, department of biostatistics, school of health, mashhad university of medical sciences, mashhad, iran

background: in large cities, the share of vehicles in air pollutants emissions is nearly 70% that is mainly due to use of fossil fuels. environmental simulation has many advantages such as accuracy and speed of modeling. present study was conducted to create a model of air pollution [carbon monoxide (co) and nitrogen oxides (nox)] from vehicles in fifty following years, in mashhad. methods: acc...

Journal: :journal of membrane science and research 0
mathurkumar shambhubhai bhakhar gujarat technological university, ahmedabad bina r sengupta the maharaja sayajirao university of baroda, vadodara ranjan a sengupta the maharaja sayajirao university of baroda, vadodara

extraction of nickel and its co-extraction with copper from ammoniacal media into emulsion liquid membrane systems (elms) was investigated using lix 84i as the carrier. measurement of the solute stripped in the internal phase of emulsion opened a new dimension in the study of the elm extraction processes. the effect of operating parameters such as feed ph, initial feed concentration, and treat ...

Journal: :international journal of nano dimension 0
razieh habibpour department of chemical technologies, iranian research organization for science and technology, p.o. box 3353-5111, tehran, i. r. iran eslam kashi department of chemical technologies, iranian research organization for science and technology, p.o. box 3353-5111, tehran, i. r. iran raheleh vaziri department of chemistry, payame noor university, p. o. box 19395-3697, tehran , i. r. iran

first-principle calculations were carried out to investigate the adsorption of co over cun nanoclusters. the structural, spectroscopic and electronic properties like optimized geometries, homo (highest occupied molecular orbital) and lumo (lowest unoccupied molecular orbital) energy levels, binding energy, adsorption energy, vibrational frequency and density of states (doss) of the pure cun nan...

Journal: :international journal of occupational hygiene 0
mahmoud mohammadyan associated professor, health sciences research center, faculty of health, mazandaran university of medical sciences, sari, iran behzad heibati health sciences research center, faculty of health, mazandaran university of medical sciences, sari, iran maryam mostafaee department of environmental pollution, school of environment and energy, science and research branch, islamic azad university, tehran, iran narges ghorbani department of biostatistics, faculty of health, mazandaran university of medical sciences, sari, iran asadollah moradi doost department of occupational health engineering, faculty of health, mazandaran university of medical sciences, sari, iran mehran shesh baradaran department of environmental engineering, school of environment and energy, science and research branch, islamic azad university, tehran, iran

carbon monoxide (co) poisoning is one of the most common causes of death in iran. the present study investigated the indoor and outdoor co concentrations at hospitals under the supervision of mazandaran university of medical sciences in sari, iran.indoor and outdoor measured co were conducted over a period of one month during the 2012 winter season in 4 hospital kitchens using a direct measurem...

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