نتایج جستجو برای: surface properties

تعداد نتایج: 1428668  

M, Omid M, Soltani R, Alimardani

Physical properties of fruits and vegetables are the subject of many researches because of its importance in designing of agricultural machinery. Banana fruit is one of important fruit. In this study some physical properties of banana fruit (Cavendish variety) were determined. Properties which were measured included weight of whole fruit peel and pulp weight, dimensions, surface area and projec...

Journal: :Journal of Geophysical Research 1969

Journal: :Journal of Colloid and Interface Science 1997

Journal: :international journal of nano dimension 0
elahe naderi department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran mahmoud mirzaei department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran lotfollah saghaie department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran ghadamali khodarahmi department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran oguz gulseren department of physics, faculty of science, bilkent university, ankara, turkey

density functional theory (dft) based calculations have been performed to examine the relaxations of tautomers of 4–hydroxy–6–methylpyridin–2(1h)–one (mpo), as a representative of pyridinone derivatives, at the fullerene (c60) surfaces. optimized molecular properties including energies, dipole moments and atomic scale quadrupole coupling constants (cq) have been evaluated to investigate the str...

Journal: :مرتع و آبخیزداری 0
محسن پادیاب دانشجوی دکتری آبخیزداری دانشکدة منابع طبیعی، دانشگاه تهران سادات فیض نیا استاد دانشکده منابع طبیعی دانشگاه تهران حسن احمدی استاد گروه آبخیزداری، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران اردشیر شفیعی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان کهکیلویه و بویراحمد

small precipitation with temporal and spatial variation of rainfall is the main responsible factors on flood occurrence in arid and semi arid regions. floods in their regions usually contain high concentration of sediments which when they are deposited on the surface of lands, they change the properties of soils of the area. in this research, the effect of floodwater spreading on physic-chemica...

Journal: :international journal of nano dimension 0
milad fardi nanotechnology research center, research institute of petroleum industry (ripi), west blvd. azadi sport complex, po box 14665-137, tehran, iran.سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (research institute of petroleum industry) sedigheh sadegh hassani nanotechnology research center, research institute of petroleum industry (ripi), west blvd. azadi sport complex, po box 14665-137, tehran, iran.سازمان اصلی تایید شده: پژوهشگاه صنعت نفت (research institute of petroleum industry)

scanning impedance microscopy (sim) is one of the novel scanning probe microscopy (spm) techniques, which has been developed to taking image from sample surface, providing quantitative information with high lateral resolution on the interface capacitance, and investigating the local capacitance–voltage (c–v) behavior of the interface and ac transport properties. the sim is an ordinary afm equip...

Journal: :journal of nanostructures 2014
o. rahmani m. h. noroozi moghaddam

piezoelectric nanobeams having circular, rectangular and hexagonal cross-sections are synthesized and used in various nano structures; however, piezoelectric nanobeams with hexagonal cross-sections have not been studied in detail. in particular, the physical mechanisms of the surface effect and the role of surface stress, surface elasticity and surface piezoelectricity have not been discussed t...

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

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1393

in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1383

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