نتایج جستجو برای: step photo

تعداد نتایج: 292797  

2017
Tianchi Xu Lifen Zhang Zhenping Cheng Xiulin Zhu

Step-growth radical copolymerization between a,u-diiodoperfluoroalkanes (A) and a,u-unconjugated dienes (B) proceeds efficiently through a photo-induced Step Transfer-Addition & Radical-Termination (START) strategy in aqueous/organic biphasic system. The addition of water in our polymerization strategy enhanced the overall polymerization efficiency and inhibited the function loss (C–I) signific...

Journal: :international journal of environmental research 0

nano-cus powders were synthesized with chemical solution method. xrd and sem and spectrophotometry were used for characterization of the cus powders. xrd analysis indicated that tetragonal cus was the main phase with particle size of 16.2nm and little cu2s phase was present. scanning electron microscopy (sem) analysis revealed that powder was plate like and had very little aspect ratio in morph...

F Atyabi R Dinarvand SH Moghadam Z Kouchakzadeh

Nifedipine (NIF), a 1,4-dihydropyridine calcium channel antagonist, undergoes photo-degradation to dehydro-nifedipine (DNIF) upon exposure to ultraviolet (UV) light and to the nitroso analogue of dehydro-nifedipine (NDNIF) when exposed to sunlight or some kinds of artificial lights. NIF photo-degradation products do not contribute to clinical activity, thus prevention of photo-degradation of NI...

Ali Reza Mahjoub Alimorad Rashidi, Mahshad Alaei,

Tungsten trioxide nanoparticles with two different sizes (average particle sizes about 50 and 80 nm) were prepared by the spray pyrolysis method. Photo degradation of Congo Red (azo dye) showed that photo catalytic property of the as-prepared WO3 nanoparticles with average size about 80 nm is higher than the sample with average size about 50 nm. Photo degradation of Rhodamine B (...

Hamid Reza Guodarzi, Mohammad Agha Mohammadi Mohsen Mousavi1

Amyloid-β (Aβ) self-assembly into cross-β amyloidfibrils is implicated in a causative role in Alzheimer’s disease pathology.Uncertainties persist regarding the mechanisms of amyloid self assembly and the role of metastable prefibrillar aggregates. Aβ fibrilsfeature a sheet-turn-sheet motif in the constituent β-strands; as such, turn nucleation has been proposed as a rate-limiting step in the se...

Journal: :Arts and Design Studies 2022

By this research, the author conducted detailed and reflected of process photo-elicitation as a step to access respondents figure out theirs voices selected word visual. The subject research is photographer from Solo, Central Java, named Pandji Vasco Da Gama. With his serial photos, titled “Republik Kresek”. described in detail using interview upon Pandji’s experiences with qualitative method. ...

ژورنال: مجله دندانپزشکی 2014
رضوی, الهام سادات عمادیان , فخار, حوریه باشی‌زاده ,

  Background and Aims Bone density is frequently used in medical diagnosis and research. The current methods for determining bone density are expensive and not easily available in dental clinics. The aim of this study was to design and evaluate the accuracy of a digital method for hard tissue densitometry which could be applied on personal computers.   Materials and Methods: An aluminum step we...

Journal: :مجله علوم پزشکی رازی 0
واهان مرادیانس دانشگاه علوم پزشکی ایران مهشید طالبی طاهر دانشگاه علوم پزشکی ایران سیامک خالقی دانشگاه علوم پزشکی ایران

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F Atyabi R Dinarvand SH Moghadam Z Kouchakzadeh

Nifedipine (NIF), a 1,4-dihydropyridine calcium channel antagonist, undergoes photo-degradation to dehydro-nifedipine (DNIF) upon exposure to ultraviolet (UV) light and to the nitroso analogue of dehydro-nifedipine (NDNIF) when exposed to sunlight or some kinds of artificial lights. NIF photo-degradation products do not contribute to clinical activity, thus prevention of photo-degradation of NI...

Hamid Reza Guodarzi, Mohammad Agha Mohammadi Mohsen Mousavi1

Amyloid-β (Aβ) self-assembly into cross-β amyloidfibrils is implicated in a causative role in Alzheimer’s disease pathology.Uncertainties persist regarding the mechanisms of amyloid self assembly and the role of metastable prefibrillar aggregates. Aβ fibrilsfeature a sheet-turn-sheet motif in the constituent β-strands; as such, turn nucleation has been proposed as a rate-limiting step in the se...

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