نتایج جستجو برای: t shaped structure

تعداد نتایج: 2240977  

2009
Dorothée Petit Huang T. Zeng Emma Lewis Liam O’Brien Russell P. Cowburn

The interaction mechanism between transverse domain walls TDWs in Permalloy nanowires and artificially patterned traps is studied using high-sensitivity spatially resolved magneto-optical Kerr effect measurements and numerical simulations. T-shaped trap geometries are considered, where a DW traveling in the horizontal arm is pinned by the vertical arm. Pinning strengths as well as potential ene...

2008
G. Goldoni F. Rossi E. Molinari A. Fasolino

We present a theoretical investigation of the electronic and optical properties of V-and T-shaped quantum wires. Valence band mixing as well as realistic sample geometries are fully included through an accurate and efficient approach that is described here in detail. We investigate the resulting valence band structure, which shows some significant peculiarities, such as an anomalously large spi...

عبدلی, اسماعیل, هراتی‌زاده, حمید,

Thermal variation of PL peak energy of undoped nitride semiconductor quantum well shows a successive red-blue-red shifted emission (S-shaped behavior). This behavior has been attributed to the localization of excitons at the energy minima induced by the potential fluctuations in the quantum well structure and/or interface roughness. The S-shaped behavior of PL peak position, the thermal variati...

Nanostructured zinc oxide (ZnO) materials have received considerable interest from scientists due to their remarkable performance in electronics, optics and photonics. ZnO nanoparticles were synthesized by co-precipitation method. ZnO nanoparticles were synthesized using Zn(NO3)3 and K2CO3 precursors. The structure of the obtained product was confirmed by the powder X-ray diffraction (XRD) anal...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Moh Lan Yap Thomas Klose Fumio Arisaka Jeffrey A Speir David Veesler Andrei Fokine Michael G Rossmann

Bacteriophage T4 consists of a head for protecting its genome and a sheathed tail for inserting its genome into a host. The tail terminates with a multiprotein baseplate that changes its conformation from a "high-energy" dome-shaped to a "low-energy" star-shaped structure during infection. Although these two structures represent different minima in the total energy landscape of the baseplate as...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده ادبیات و علوم انسانی 1392

in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...

Mexiletine as the first choice drug in myotonia treatment is a chiral sodium channel blocker clinically used in its racemic form. The phenolic structure of this drug, prompted us to design its novel calix[4]arene-based cluster in a chalice-shaped structure. Therefore, the present study reports the synthesis and in-vitro anti-myotonic activity of the chalice-shaped cluster of mexiletine...

2012
Prakul Rakesh Harkesh B. Singh Ray J. Butcher

The crystal structure of the title compound, C(9)H(12)ClNTe, contains isolated mol-ecules with no close Te⋯Cl inter-molecular contacts and has the same composition as a previously published structure [Engman et al. (2004 ▶). Phospho-rus Sulfur Silicon Relat. Elem.179, 285-292]. However, in this case, the compound has crystallized in a centrosymmetric space group, unlike the previously published...

2008
Hong Liang Li

In the title complex, {[Ag(2)(CF(3)O(3)S)(2)(C(30)H(20)N(6))]·C(6)H(6)}(n), the two independent Ag(I) ions are each coordinated by two N atoms and one O atom in a 'T-shaped' geometry. In the crystal structure, 1,2-bis-[(3-cyano-benzyl-idene)hydrazono]-1,2-diphenyl-ethane ligands act as bridging ligands and each coordinates to four Ag(I) ions, resulting in a one-dimensional chain structure. The ...

2014
Xue Cao Kai-Yu Zhao Li-Li Yang Lin Li

A new defected ground structure (DGS) with tunable working frequency and reconfigurable bandwidth is proposed in this paper. The prototype combines the conventional DGS with T-shaped patch featuring narrow bandwidth and two such units located symmetrically featuring wide bandwidth. The proposed structure is designed, simulated and measured. By embedding two reversely-set PIN diodes and four var...

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