نتایج جستجو برای: double coating
تعداد نتایج: 277176 فیلتر نتایج به سال:
Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of antirelaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades and has been demonstrated to allow an atom to experience up to 10 000 collisions with the walls of its container without depolarizing, but the detail...
We designed a study for photodynamic therapy (PDT) using chitosan coated Mg-Al layered double hydroxide (LDH) nanoparticles as the delivery system. A Food and Drug Administration (FDA) approved near-infrared (NIR) fluorescent dye, indocyanine green (ICG) with photoactive properties was intercalated into amine modified LDH interlayers by ion-exchange. The efficient positively charged polymer (ch...
The potential barrier model considering an additional current that can lead to the high-gradient breakdowns in accelerating structures is proposed. An oscillatory resonance feature of field emission from a double-layer metal system with nanoscale coating shown. double was used for calculations density value. presence resonant properties nanometric revealed. increasing more than 5 times (for con...
We present a comparative study of several non-covalent approaches to disperse, debundle and non-covalently functionalize double-walled carbon nanotubes (DWNTs). We investigated the ability of bovine serum albumin (BSA), phospholipids grafted onto amine-terminated polyethylene glycol (PL-PEG(2000)-NH(2)), as well as a combination thereof, to coat purified DWNTs. Topographical imaging with the at...
let be a banach algebra. let be linear mappings on . first we demonstrate a theorem concerning the continuity of double derivations; especially that all of -double derivations are continuous on semi-simple banach algebras, in certain case. afterwards we define a new vocabulary called “-higher double derivation” and present a relation between this subject and derivations and finally give some ...
The DNA binding and ATPase activities of RecF protein are modulated by RecR protein. Stoichiometric amounts of RecF protein bind to double-stranded (ds) DNA (about 1 RecF monomer/4-6 base pairs) in the presence of adenosine 5'-O-(3-thio)triphosphate (ATP gamma S), forming a homogeneous protein coating on the DNA. Little or no cooperativity is evident in the binding process. In the presence of A...
در پایان نامه حاضر با در نظر گرفتن واکنش 238u+16o، پتانسیل برهمکنش بین دو یون سنگین کروی و تغییر شکل یافته با استفاده از مدل double-folding محاسبه شده است. در محاسبه پتانسیل double-folding از برهمکنش نوکلئون-نوکلئون m3y از نوع paris استفاده شده است. وابستگی پتانسیل برهمکنش ، سطح مقطع همجوشی و توزیع سد همجوشی به شکل و جهت گیری های مختلف هسته هدف بررسی شده است. برای تطابق بهتر با داده های تجربی ،...
CrN, AlN, TiN layer were prepared as diffusion barriers between the K417 substrate and Ni+CrAlYSiN nano composite coatings via vacuum arc evaporation. Oxidation kinetics microstructure evaluation of these coating systems at 1000 °C after 100 h studied. Results show that AlN showed good thermodynamic stability, effectively inhibited interdiffusion substrate, improved oxidation resistance coating...
We report a novel graded refractive index antireflection coating for III/V quadruple solar cells based on bottom-up grown tapered GaP nanowires. We have calculated the photocurrent density of an InGaP-GaAs-InGaAsPInGaAs solar cell with a MgF2/ZnS double layer antireflection coating and with a graded refractive index coating. The photocurrent density can be increased by 5.9 % when the solar cell...
The conformation of a three-dimensional polymeric coating (copoly(DMA-NAS-MAPS)) and immobilization and hybridization of DNA strands on the polymer coated surface are investigated. A conformational change, specifically the swelling of the surface adsorbed polymer upon hydration, is quantified in conjunction with the application of this polymer coating for DNA microarray applications. Fluorescen...
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