نتایج جستجو برای: pulsed ac electrodeposition
تعداد نتایج: 73951 فیلتر نتایج به سال:
Two experiments examine speed-up in argument pairs of various propositional forms. In the first experiment, participants were presented with pairs of conditional arguments. Some of these pairs had a form of a valid Modus Ponens (MP) inference, whereas other pairs had a form of a fallacy of Affirming the Consequent (AC). In both argument pairs, presentation of the prime led to a significant spee...
←X 1 g + 0,0 two-photon transition near 202 nm. For this purpose, the fourth harmonic of an injection-seeded titanium:sapphire pulsed oscillator is employed in a Doppler-free REMPI-detection scheme on a molecular beam of hydrogen. A frequency comb laser is used to perform the absolute frequency calibration on the continuous-wave CW laser that injection-seeds the oscillator. Chirp-induced freque...
Matrix converter is a single-stage converter which directly connects a three-phase voltage source to a three-phase load without dc-link components. Therefore, any harmonic distortion and imbalance in input voltage directly reflect to the output of the converter. Recently, many researchers have made an effort to cope with this problem. In this paper, under distorted input voltage conditions, beh...
در صنعت از منابع تغذیه ی مختلفی برای سیستم های لایه نشانی استفاده می شود. انتخاب منبع تغذیه ی مطلوب با توجه به شرایط لایه نشانی صورت می گیرد. منابع تغذیه ی مورد استفاده شامل منبع تغذیه ی dc ، ac ، rf و pulsed-dc می باشند. در این پروژه یک منبع تغذیه ی پالسی جریان مستقیم برای سیستم های لایه نشانی طراحی و ساخته شد. این منبع تغذیه با توان 5کیلووات و ولتاژ متغیر تا 700 ولت و فرکانس متغیر تا 10 کیلوه...
The effect of microstructure on the efficiency shielding or shunting magnetic flux by permalloy shields was investigated in present work. For this purpose, FeNi coatings with different grain structures were obtained using stationary and pulsed electrodeposition. coatings’ composition, crystal structure, surface microstructure, domain studied. It has been shown that 0.2–0.6 µm grains have a diso...
In the present study, a nanocrystalline Ni-Fe matrix with reinforced TiO2 nanoparticles as functional nanocomposite material was fabricated by pulsed current electroforming in UV-LIGA (lithography, electroplating, and molding). The influences of on deposition were also investigated using scanning electron microscopy, transmission vitro cytotoxicity assay. It found that 5 wt.% showed smooth surf...
Collagen is expected to work as a bonding agent of soft and hard tissues to solid materials. In this study, the electrodeposition of collagen to a titanium (Ti) surface under various conditions, i.e., the pH of the collagen solution, potential, and electrodeposition time, was performed to understand the optimal electrodeposition conditions for the immobilization of collagen to Ti. The effects o...
Low intensity beams are generated with a 18 MeV Sband electron linear accelerator at Osaka Prefecture University. The minimum charge of electrons in a pulsed beam is about several aC. Study has been made to establish the methods for measuring the intensity and the spatial profile of the beam at electron charges of a beam in aC to pC regions. In pC region a beam monitor using a charge-sensitive ...
n-Si/Cd and n-Si/Pb Schottky junctions have been prepared by electrodeposition of Cd or Pb from acidic aqueous solutions onto H-terminated and CH3-terminated n-type Si 111 surfaces. For both nondegenerately nand degenerately n+doped H–Si 111 electrodes, Cd and Pb were readily electroplated and oxidatively stripped, consistent with a small barrier height b at the Si/solution and the Si/metal jun...
In this work, Ni nano structures with different surface morphology have been electrodeposited from the Waths bath using direct current (DC) and pulsed reverse current (PRC) techniques in the presence of three types of surfactants. CTAB, SDS, and Triton x-100 have been used as cathionic, anionic and nonionic surfactants respectively. The surfactants concentration have been selected at below, equ...
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