نتایج جستجو برای: na) and ?
تعداد نتایج: 17028955 فیلتر نتایج به سال:
in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
dft calculations were used to investigate adsorptionof f-, cl-, li+ and na+ ions on the exterior surface of mg12o12 nanocage in the gas phase and water media. the most favorite position for adsorption of the studied anions and cations are atop of mg and o atoms of mg12o12, respectively. the strongest interaction is obtained when fluoride is located atop of mg atom with the adsorption energy of...
the study area is located in the central iranian tectono-magmatic zone, which is known for its world-class ioa-type iron ore deposits. the advanced space borne thermal emission and reflection radiometer (aster) and landsat enhanced thematic mapper plus (etm+) image-processing techniques, were used in satellite imagery through conventional and also modern processing methods including band ratios...
in wheat na+ exclusion and k+/na+ have shown to be associated with salinity tolerance, therefore in order to identify qtls with additive effect for na+ and k+ concentration traits in roots and shoots of wheat, 319 bread wheat recombinant inbred lines (ril f7), derived from a cross between roshan cultivar (salt tolerant) and falat cultivar (salt sensitive), along with their parents and 2 checks...
Sciortino, Christopher M., and Michael F. Romero. Cation and voltage dependence of rat kidney electrogenic Na-HCO3 2 cotransporter, rkNBC, expressed in oocytes. Am. J. Physiol. 277 (Renal Physiol. 46): F611–F623, 1999.— Recently, we reported the cloning and expression of the rat renal electrogenic Na-HCO3 2 cotransporter (rkNBC) in Xenopus oocytes [M. F. Romero, P. Fong, U. V. Berger, M. A. Hed...
Center of Nanophase Materials Sciences, Oa Tennessee 37831, USA. E-mail: [email protected] Chemical Sciences Division, Oak Ridge Na 37831, USA. E-mail: [email protected] EU-FEI Nano-Pico Center, Southeast Univer School of Chemistry and Biochemistry, G Georgia 30332, USA Department of NanoEngineering, University CA 92093, USA † Electronic supplementary informa 10.1039/c7ta05877b ‡ These authors cont...
dermoid cyst is a tumor arises due to embryogenesis impairment. it accounts for less than 0.3 percent of all intracranial masses. a 35 years old man presented with a tonic clonic seizure without any significant past history of seizure. physical examination and imaging propounded epidermoid cyst as diagnosis. the patient had a craniotomy and cyst was totally removed. operative findings and histo...
vacuolar h+-translocation pyrophosphatase (v-ppase) and na+/h+ antiporter (v-na+/h+) are important transporters in plant cells and have essential roles against abiotic stresses. in this study, the effects of salt stress were surveyed on the transcription of v-ppase pump and na+/h+ antiporter genes at early times of nacl treatment in roots of halophytic grass leptochloa fusca through the real ti...
the types of scion-rootstock compound and level of salinity affect on growth characteristics and concentration of nutrition elements of almond leaves and roots. in order to evaluate the effect of salinity stress on vegetative traits and concentration of nutrition elements of leaves and roots almond genotypes, a experiment was carried out with two factors; cultivar in four levels including ‘shah...
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