نتایج جستجو برای: 2 pcm

تعداد نتایج: 2528372  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مکانیک 1391

کمبود منابع مصرف انرژی و افزایش مصرف انرژی، همواره یکی از نگرانی های پیش روی جوامع امروزی می باشد. از آنجا که بخش مهمی از انرژی مصرفی، در ساختمان ها مصرف می شود، تاکنون تلاش های زیادی برای یافتن راه های کاهش مصرف انرژی در ساختمان ها انجام شده است. یکی از موضوعات مورد بررسی در این زمینه، تاثیر کاربرد مواد تغییر فاز دهنده (pcm) در کاهش مصرف انرژی ساختمان است. در تحقیق حاضر مطالعه جامع و دقیقی د...

2015
Jennifer H. Richens Teresa P. Barros Eliana P. Lucas Nina Peel David Miguel Susano Pinto Alan Wainman Jordan W. Raff

Centrosomes comprise a pair of centrioles surrounded by a matrix of pericentriolar material (PCM). In vertebrate cells, Pericentrin plays an important part in mitotic PCM assembly, but the Drosophila Pericentrin-like protein (PLP) appears to have a more minor role in mitotic fly cells. Here we investigate the function of PLP during the rapid mitotic cycles of the earlyDrosophila embryo. Unexpec...

2015
Hasan Yusufoglu Gamal A. Soliman Rehab F. Abdel-Rahman

Present study was aimed to investigate in vitro antioxidant and hepatoprotective activities of the ethanolic extracts of Astragalus subrobustus (A. subrobustus) and Astragalus woronowii (A. woronowii) on PCM induced liver damage in rats. The antioxidant activities of both extracts were assayed and their activities were compared to standard antioxidants, ascorbic acid and pyrogallol. Liver injur...

Journal: :Cancer research 1982
R F O'Dea G Pons J A Hansen B L Mirkin

Protein carboxy-O-methyltransferase (PCM) activity was determined in subcellular fractions prepared from C-1300 neuroblastoma tumors following transplantation and growth in male A/J mice. Fractions were obtained by differential centrifugation, and PCM activity was determined in all fractions in the presence (+gel) and absence (-gel) of an exogenous substrate, gelatin. Sixty % of the PCM activit...

2016
Svetlana Ushak M. Judith Cruz Luisa F. Cabeza Mario Grágeda

The literature shows that inorganic phase change materials (PCM) have been very seldom microencapsulated, so this study aims to contribute to filling this research gap. Bischofite, a by-product from the non-metallic industry identified as having good potential to be used as inorganic PCM, was microencapsulated by means of a fluidized bed method with acrylic as polymer and chloroform as solvent,...

Amir Baniassadi Baniassadi Behrang Sajadi

Energy crisis, global warming and other environmental issues are what motivate researchers to find new strategies to reduce energy consumption in buildings. Recently, using phase change materials (PCM) in the building’s envelopes has drawn significant attention as an energy-saving method, which helps in increasing the building’s thermal capacity. In the present research, the effects of the main...

PCM

Journal: :Revista Interface Tecnológica 2020

Journal: :iranian red crescent medical journal 0
mojgan naeimi rad development center of clinical research, rouhani hospital, babol university of medical sciences, babol, ir iran mahmood monadi assistant of internal diseases, specialist of pulmonary diseases, babol university of medical sciences, babol, ir iran; assistant of internal diseases, specialist of pulmonary diseases, babol university of medical sciences, babol, ir iran. tel: +98-9111141678, fax: +98-111-32209636 mahmood sadeghi infectious diseases department, infectious diseases research center, babol university of medical sciences, babol, ir iran reza khaleghnejad radiologist, babol university of medical sciences, babol, ir iran hosein narimani resident of internal diseases, babol university of medical sciences, babol, ir iran

conclusions pcm has not been reported in iran until now, but it should be considered as a differential diagnosis when risk factors or symptoms of pcm are detected. case presentation a 72-year-old man had a four-year history of dyspnea, dry cough, and weakness and a recent weight loss of more than 10 kg. first, he was treated with glucocorticoid, but he did not continue this treatment. core need...

Journal: :energy equipment and systems 0
mehrdad shirinbakhsh mechanical engineering department, k.n. toosi university of technology tehran, tehran, iran nima mirkhani school of mechanical engineering, college of engineering, university of tehran, tehran, iran behrang sajadi school of mechanical engineering, college of engineering, university of tehran, tehran, iran

many researchers have investigated how to increase the overall efficiency of solar-driven thermal systems. several key parameters, such as collector efficiency and storage tank characteristics, may impose some constraints on the annual solar fraction (asf) of such systems. in this paper, the behaviour of integrating the phase change material (pcm) in sdhw systems is modelled and optimized numer...

2015
Susana Serrano Camila Barreneche Antonia Navarro Laia Haurie A. Inés Fernandez Luisa F. Cabeza

Gypsum has two important states (fresh and hardened states), and the addition of phase change materials (PCM) can vary the properties of the material. Many authors have extensively studied properties in the hardened state; however, the variation of fresh state properties due to the addition of Micronal® DS 5001 X PCM into gypsum has been the object of few investigations. Properties in fresh sta...

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