نتایج جستجو برای: situ techniques

تعداد نتایج: 751975  

Journal: :Fire Safety Journal 2021

The performance of commercial intumescent coatings is assessed by industrial norms and standards with clearly defined experimental conditions. In contrast, academic research on much more diverse there are no clear guidelines how such should be characterised. Some researchers transfer the conditions in to laboratory-scale setups while others rely cone calorimeters or Bunsen burners. This might n...

Journal: :Frontiers in Materials 2023

Over the past few decades, in situ transmission electron microscopy (TEM) has emerged as a powerful experimental technique for materials design and characterization. It offers unparalleled dynamic details of deformation under mechanical stimuli, providing fundamental insights into their failure mechanisms various materials. In this review, we summarize recent advances on TEM characterization te...

Journal: :Inorganics (Basel) 2023

Functional layered double hydroxide (LDH) usually contains different cationic substitutes to increase the activity of oxygen evolution reaction (OER). The intrinsic OER LDH materials is connected with chemical composition and dispersion metal cations substitutions in matrix phase. potential induced phase transitions, particular hydroxide-to-oxyhydroxide are a predisposition for high can be foll...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم اجتماعی و اقتصادی 1390

بررسی تطبیقی بازده حاصل از کاربرد تحلیل های تکنیکال و روش خرید و نگهداری در بورس اوراق بهادار تهران چکیده در این پژوهش بازدهی حاصل از روش های تجزیه و تحلیل تکنیکی و روش خرید و نگهداری در فرض قابل پیش بینی بودن قیمت ها و عدم وجود شکل ضعیف فرضیه بازار کارا که توسط فاما در سال 791 مطرح گردیده است ، فعالیت میکند . در این مطالعه چهار روش از پر کاربردترین و معتبر ترین روش های تحلیل تکنیکی مورد بر...

Journal: :Space: science & technology 2023

Along with the rapid development of space technology, extraterrestrial exploration has gradually tended to further-distanced and longer-termed planet exploration. As first step an attempt for humans build a perpetual base, building lunar base by in situ resource utilization (ISRU) will drastically reduce reliance supplies from Earth. Lunar resources including mineral resources, water/ice volati...

Journal: :international journal of nanoscience and nanotechnology 2015
m.g. hosseini e. shahryari r. najjar i. ahadzadeh

the supercapacitive behavior of polyaniline/mno2-carbon black (pani/mno2-cb), mno2-cb nanocompositesand cb was studied. mno2-cb made by the in situ direct coating method to deposit mno2 onto cb; then pani coating was coated on it. morphology of the nanocomposite was studied by x-ray diffraction (xrd), fourier transform infrared (ft-ir) spectroscopy and scanning electron microscopy (sem). the el...

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