نتایج جستجو برای: solidstate chemistry

تعداد نتایج: 108786  

2011
Mark J. Fernée

Artificial atoms are a cornerstone of emerging technologies that promise to make practical use of the laws of quantum mechanics. In principle, artificial atoms should behave like real atoms but be compatible with a solidstate environment. As such, they could serve as solidstate quantum bits (qubits) ideally suited to interfacing with photonic qubits. They could store, manipulate, and retrieve q...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مواد 1385

محلول های جامد zro2-sno2-tio2 ترکیبات مهمی برای کاربردهای مشدد های دی الکتریک هستند. از این میان ترکیب (zr0.8sn0.2)tio4 به عنوان ماده ای با خواص بسیار مناسب شناخته شده است اما سینتر پذیری ضعیف آن منجر به عدم امکان متراکم سازی آن در دماهای پایین می شود. در پژوهش حاضر رفتار اکسید مس به عنوان افزودنی موثر بر سینتر پذیری این ترکیب بررسی شد. استفاده از واکنش حالت جامد اکسید های اولیه و اکسید مس در م...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1390

increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...

2016
Bin Wang Jinzhang Liu Francesca Mirri S Yong J R Owen M J Tudor S P Beeby

This paper presents the design, fabrication and characterization of a flexible solidstate electrical double layer supercapacitor fabricated in a single fabric layer. The proposed supercapacitors were based on fabric electrodes fabricated with low cost carbon materials via a spray coating technique. The single layer solid state supercapacitors achieved a specific capacitances of 40.5 F.g, area c...

2011
Y. Zhou A. Hu

A review is provided of the recent advances and challenges in nanojoining, as compared to microjoining and even regular joining processes. Nanojoining examples are given and analyzed in various joining categories such as solidstate bonding, soldering/brazing and fusion welding. Proposed strategies for nanoassembly and nanojoining, e.g., selforganization and inkjet printing, are also highlighted.

2005
Eric R. Fossum

This paper proposes the use of subdiffraction-limit (SDL) pixels in a new solidstate imaging paradigm – the emulation of the silver halide emulsion film process. The SDL pixels can be used in a binary mode to create a gigapixel digital film sensor (DFS). It is hoped that this paper may inspire revealing research into the potential of this paradigm shift.

2000
M. Akemoto A. Suzuki H. Itoh

In order to improve the efficiency(usable RF to total pulse) of a klystron modulator, a system using a solidstate compensation circuit has been developed. This system remarkably improves a flat-top and flatness of the output waveform of the modulator by means of waveform synthesis. This paper presents the design and specifications of the compensation circuit and the results of a preliminary tes...

Journal: : 2023

Friction stir spot welding (FSSW) is a relatively new process that may have significant advantages compared to the fusion processes as follows joining of conventionally non-fusion weldable alloys, reduced distortion and improved mechanical properties alloys joints due pure solidstate metals. In this paper, three-dimensional model based on finite element analysis used study thermal history in sp...

2010
Keith Parker

Laser welding with CO2, fiber and various types of solidstate lasers is a well established process currently utilized in a wide range of industries and applications. However, recent technological developments in high power diode laser technology have expanded the capabilities of laser welding, as well as changed its cost characteristics. As a result, diode lasers are poised to replace tradition...

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