Results 61 to 70 of about 4,982 (101)

طراحی و ساخت جليقه خنک‌کننده از مواد تغيير فاز دهنده و ارزيابی کارايی آن در کاهش استرين گرمايی تحت شرايط آزمايشگاهی [PDF]

open access: yes, 2015
مقدمه: پارافين و آب مواد تغيير فاز شناخته شده‌ای برای کاربرد در جليقه‌های خنک‌کننده هستند. هدف از انجام اين مطالعه طراحی و ساخت جليقه خنک‌کننده با استفاده از ترکيبات پارافين تجاری و يخ و سپس تعيين تأثير آن‌ها بر روی پارامترهای استرين گرمايی تحت شرايط آب
دهقان, حبيب الله   +1 more
core  

A closer look at the Emergence, Persistence and Disappearance of Emerging Diseases, Epidemics and Pandemics and the destiny of COVID-19 [PDF]

open access: yes, 2020
Humans have been long exposed to various infectious agents and have struggled or avoided encountering these factors based on their knowledge, awareness and experience at different times, in order to keep and promote their health.
hatami, Hossein
core   +3 more sources

Evaluation of rapid purification of high concentrations of 2, 4-Dinitrophenol in wastewater using catalytic ozonation with carboneus nanocomposite [PDF]

open access: yes, 2016
Background and purpose: 2, 4-dinitrophenol (DNP) are carcinogenic and non-biodegradable pollutants that exist at high concentration in wastewater of chemical industries.
Asgharnia, H.   +3 more
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The Relationship between Organizational Justice Perception and Self- efficacy in Staff of a Selected Educational Hospital: a case study [PDF]

open access: yes, 2017
Background & Objectives: Hospitals are one of the important components in a health care system and have significant role in health of humans. Organizational justice shows the perception of fairness and equality in the workplace by staff and affects their
Ahmadi, Zahra   +4 more
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Training transfer for sustainable agricultural intensification in Tanzania: critical considerations for scaling - up [PDF]

open access: yes, 2018
Sustainable Intensification (SI) in agriculture is fronted as a promising approach to increase agricultural production in Sub-Saharan Africa countries. Technologies that can lead to realization of the SI goal are available but one of the key challenges ...
Bekunda, Mateete A.   +4 more
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ارزیابی رابطه کشاورزی پایدار و توسعه پایدار روستایی (مطالعه موردی: نواحی روستایی شهرستان فسا) [PDF]

open access: yesPizhūhish/hā-yi Rūstāyī, 2016
کشاورزی نقش اساسی و تعیین‌کننده‌ای در سرنوشت جامعه روستایی ایران دارد و نمی‌توان انتظار داشت بدون داشتن راه‌حلی استوار و منطقی برای کشاورزی به توسعه روستایی رسید. هدف تحقیق حاضر ارزیابی رابطه کشاورزی پایدار و توسعه پایدار روستایی در نواحی روستایی شهرستان
سید هدایت الله نوری   +2 more
doaj  

Review on Inteins: Structures, Function, Mechanisms and Their Application in Biotechnology [PDF]

open access: yes, 2016
زمینه و هدف: اینتئین‌ ها عناصر ژنتیکی هستند که نقشی شبیه اینترون ها را از خود نشان می‌دهند. با این تفاوت که علاوه بر رونویسی ترجمه هم می‌شوند.
Heydari, Mohammad Foad.   +5 more
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Optimization of removal of COD and color from baker’s yeast wastewater by Fenton oxidation [PDF]

open access: yes, 2014
Background and Objectives: Bakery’s yeast industry wastewater contains various pollutants and is generally characterized with high chemical oxygen demand (COD), dark color, high-nitrogen and sulfate and non-biodegradable organic pollutants.
Ahmadi, Mohammad Ali.   +2 more
core  

The evaluation of the quality of beta-carotene derived from Azolla filiculoides in the Anzali Wetland using the alkaline hydrolysis method in summer [PDF]

open access: yes, 2017
The present project was aimed at determining the content, quality, and purity of β-carotene extracted from Azolla filiculoides in the Anzali Wetland, comparing it with synthetic β- carotene, and measuring its economic value.
Khanipour, A.A.   +2 more
core  

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