نتایج جستجو برای: layers thickness

تعداد نتایج: 203824  

F. Abdi S. Mohammadi*

In the presented work, sulfur concrete and rubber were used for producing functionally graded materials (FGM). The physical and mechanical properties of sulfur concrete and rubber were changed continuously across the thickness. On one side, there was just rubber and, on the other, there was pure sulfur; the properties of each substance were moved to reach another. This kind of material was cons...

2014
Marwa Karim Roberto Martini Hariharsudan Sivaramakrishnan Radhakrishnan Kris van Nieuwenhuysen Valerie Depauw Wedgan Ramadan Ivan Gordon Jef Poortmans

UNLABELLED Sintered porous silicon is a well-known seed for homo-epitaxy that enables fabricating transferrable monocrystalline foils. The crystalline quality of these foils depends on the surface roughness and the strain of this porous seed, which should both be minimized. In order to provide guidelines for an optimum foil growth, we present a systematic investigation of the impact of the thic...

جنیدی جعفری, احمد, خوانین, علی, زراوشانی, ویدا, صفری واریانی, علی,

Introduction: Nowadays, demand for protection against radar radiation using electromagnetic shielding is on the rise.  Double-layer or multilayer shielding were devised in order to improve the single layer electromagnetic shielding properties. In this study, we tried to prepare a new double-layers electromagnetic shield and investigate the effect of structural factors such as thickness, similar...

Journal: :Nanotechnology 2014
Hongfei Liu K K Ansah Antwi Jifeng Ying Soojin Chua Dongzhi Chi

We report on the effects of substrate, starting material, and temperature on the growth of MoS(2) atomic layers by thermal vapor sulfurization in a tube-furnace system. With Mo as the starting material, atomic layers of MoS(2) flakes are obtained on sapphire substrates while a bell-shaped MoS(2) layer, sandwiched by amorphous SiO(2), is obtained on native-SiO(2)/Si substrates under the same sul...

2010
Stefanie Scholtyssek Rameshwar Adhikari Volker Seydewitz Goerg Hannes Michler Eric Baer Anne Hiltner

Nanostructured polymers and ultra-thin polymer layers are used more and more in technical applications like nanotechnology and microelectronics. Therefore, it is really important to understand the size-scale dependent properties as bulk polymers become thinner and more two-dimensional. Here the morphology as well as the macroscopic and the microscopic deformation behaviour of multilayered films...

2012
Zhiqiang Liang Qifeng Zhang Orawan Wiranwetchayan Chundong Li Guozhong Cao

The infl uences of morphology and thickness of zinc oxide (ZnO) buffer layers on the performance of inverted polymer solar cells are investigated. ZnO buffer layers with different morphology and thickness varying from several nanometers to ≈ 55 nm are fabricated by adjusting the concentration of the precursor sol. The ZnO buffer layers with nearly same surface quality but with thickness varying...

Journal: :Okajimas folia anatomica Japonica 2011
Kurito Yasuda Mamoru Uemura Fumihiko Suwa

SUMMARY We studied morphological changes at the maxillary first molar in a model rat for type 2 spontaneous diabetes mellitus (DM), the Goto-Kazizaki (GK) rat, vs. the normal 8-week-old Wistar rat. Serial frontal sections of the gingiva of the maxilla with the bone were prepared from the rats. Image analyses, performed on light micrographs of the hematoxylin-eosin stained specimens, allowed com...

2013
Andrea M. Schild Tina Ristau Julia Fricke Antje Neugebauer Bernd Kirchhof Srinivas R. Sadda Sandra Liakopoulos

PURPOSE To specify thickness values of various retinal layers on macular spectral domain Optical Coherence Tomography (SDOCT) scans in patients with autosomal dominant optic atrophy (ADOA) compared to healthy controls. METHODS SDOCT volume scans of 7 patients with ADOA (OPA-1 mutation) and 14 healthy controls were quantitatively analyzed using manual grading software. Mean thickness values fo...

A. Darvizeh M. Darvizeh, R. Ansari, R. Rajabieh Fard

In the present work, FGM shells integrated with magnetostrictive layers acting as distributed sensors and actuators are modeled to control vibration attenuation of FGM shells with simply supported boundaryconditions. To achieve a mechanism for actively control of the oscillation amplitude of the integrated structure, a negative velocity proportional feedback control law is implemented in the st...

2014
Ching-Hwa Ho

The exploitation of potential functions in material is crucial in materials research. In this study, we demonstrate a III-VI chalcogenide, polycrystalline γ-In2Se3, which simultaneously possesses the capabilities of thickness-dependent optical gaps and wide-energy-range absorption existed in the polycrystalline layers of γ-In2Se3. Transmission electron microscopy and Raman measurement show a lo...

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