نتایج جستجو برای: tendril density

تعداد نتایج: 410305  

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...

Journal: :Materials research express 2023

Abstract Nano-tendril bundles (NTBs) were formed on tungsten via helium (He) plasma exposure with various additional impurity gases, such as neon (Ne), nitrogen (N 2 ), and argon (Ar). The sizes of the NTBs showed different distributions gases. field emission property gases was measured. field-emission significantly affected by morphology NTBs, especially tips fibers. In Ne- Ar-seeded cases, sh...

Journal: :Journal of Islamic Architecture 2023

Due to a lack of secure identity following the new developments in Muslim Royal Town high-tech modernization twentieth century, craft maker created any motif with an unknown purpose. As result, original character location will be tarnished, and image vanish. This paper aims identify qualitative responses plant elements reinforcing Kuala Kangsar, conducted semi-structured interview participants ...

Journal: :Plant physiology 2004
Myriam Calonje Pilar Cubas José M Martínez-Zapater María José Carmona

To study the early steps of flower initiation and development in grapevine (Vitis vinifera), we have isolated two MADS-box genes, VFUL-L and VAP1, the putative FUL-like and AP1 grapevine orthologs, and analyzed their expression patterns during vegetative and reproductive development. Both genes are expressed in lateral meristems that, in grapevine, can give rise to either inflorescences or tend...

Journal: :Liquid Crystals 2023

Sessile droplets of a ferroelectric nematic liquid crystalline material were exposed to surface electric fields produced by pyroelectric and photogalvanic (photovoltaic) effects in X-cut iron-doped lithium niobate crystals. The resulting dynamic processes monitored polarisation optical (video)microscopy (POM). During heating/cooling cycles, at first, the change their shape from spherical extend...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Journal: :Optical Materials Express 2022

We investigated the effect of a photovoltaic field generated on surface iron-doped lithium niobate crystals sessile droplets ferroelectric nematic liquid crystalline and standard material present this surface. When such an assembly is illuminated with laser beam, wide range dynamic phenomena are initiated. Droplets located outside spot dragged in direction area, while inside region tend to brid...

Journal: :به نژادی نهال و بذر 0
علی عبادی a. ebadi university college of agriculture and natural resources, university of tehran, karaj, iran.، پردیس کشاورزی و منابعطبیعی دانشگاه تهران، کرج امیر جمال محمود a. jamal mahmood مسعود میرمعصومی m. mirmasoomi منصور امیدی m. omidi

to produce embryogenic callus and somatic embryos, tendril explants were collected and cultured in ms medium supplemented with various concentrations of hormones. after one month most of explants produced callus. the highest percent of embryogenic callus obtained in ms medium supplemented with 4.5 µm bap and 1µm 2,4-d. production of somatic embryos was depended on genotype and medium. yaghouti ...

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