Fabrication Of Porous Gallium Nitride By Photoelectrochemical Etching Method Penerbit Usm

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Fabrication Of Porous Gallium Nitride By Photoelectrochemical Etching Method Penerbit Usm

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Author : Cheah Sook Fong
language : en
Publisher: Penerbit USM
Release Date : 2017

Fabrication Of Porous Gallium Nitride By Photoelectrochemical Etching Method Penerbit Usm written by Cheah Sook Fong and has been published by Penerbit USM this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Science categories.

Photoelectrochemical (PEC) etching is a simple and inexpensive wet etching approach that is widely used to fabricate porous gallium nitride (GaN) thin films. However, many fundamental issues on the etching mechanism and the optical response of the fabricated porous structure still remain unclear. In this book, PEC etched porous GaN thin films with a variety of morphologies such as circular, hexagonal, leaf like-, and honeycomb-like patterns were described in detail. The effects of semiconductor types, etching voltage and etching duration on the surface morphology and the optical response of the fabricated porous structure were discussed. Attenuated total reflection method which is very sensitive to the surface layer of the porous GaN was applied to extract the carrier concentration, porosity, and layer thicknesses or the porous layer. Through this book, a better understanding of the PEC etching of the porous GaN can be obtained.

Elementary Estimating For Building Works Penerbit Usm

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Author : Mastura Jaafar
language : en
Publisher: Penerbit USM
Release Date :

Elementary Estimating For Building Works Penerbit Usm written by Mastura Jaafar and has been published by Penerbit USM this book supported file pdf, txt, epub, kindle and other format this book has been release on with Architecture categories.

Accurately forecasting the building works is vital to the survival of any business or organization. Building consists of many elements that need to be properly priced. Building estimation is useful for owner and consultant to determine the project scope; while for contractor it is normally used for bidding or tendering process. This book provides a simple guideline in doing elementary estimation of building works. It consists of 12 chapters giving example calculations of various building elements covering from excavation and earthwork until rainwater disposal system. Besides students in the construction environment, this book is also relevant for practitioners in the construction related industries such as building contractors, subcontractors, consultants or clients and also individual who are looking for knowledge related to building costing. Globalization era in higher education system and a great demand on construction related programmes in Malaysia has contributed to the publication of this book. Thus, this book is purposely written in English for the benefit of local and international students. Universiti Sains Malaysia, Penerbit Universiti Sains Malaysia

Molecular Docking And Molecular Dynamics

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Author : Amalia Stefaniu
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-12-18

Molecular Docking And Molecular Dynamics written by Amalia Stefaniu and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-18 with Medical categories.

This book clearly explains the principles of in silico tools of molecular docking and molecular dynamics. It provides examples of algorithms and procedures proposed by different software programs for visualizing and identifying potential interactions in complexes of biochemical interest. The book is structured in six chapters, each of which discusses different molecular simulation methodologies and provides concrete examples of complexes interactions. In each chapter authors give an overview of the treated subject, a description of the methodologies used, and a discussion of the results. The authors describe computational ways to achieve a rational design of bioactive compounds with various therapeutic applications, including antitumoral agents, antitubercular drugs, nonsteroidal anti-inflammatory drugs, and radiopharmaceuticals.

Energy Efficient Building Design

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Author : Ana-Maria Dabija
language : en
Publisher: Springer Nature
Release Date : 2020-04-11

Energy Efficient Building Design written by Ana-Maria Dabija and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-11 with Architecture categories.

This book is the result of recent research that deals with the built environment and innovative materials, carried out by specialists working in universities and centers of research in different professional fields ─ architecture, engineering, physics ─ and in an area that that spans from the Mediterranean Sea to the Persian Gulf, and from South Eastern Europe to the Middle East. This book takes the necessity of re-shaping the concept of building design in order to transform buildings from large scale energy consumers to energy savers and producers into consideration. The book is organized in two parts: theory and case studies. For the theoretical part, we chose from the wide range of sources that provide energy efficient materials and systems the two that seem to be endless: the sun and vegetation. Their use in building products represents a tool for specialists in the architectural design concept. The case-studies presented analyze different architectural programs, in different climates, from new buildings to rehabilitation approaches and from residential architecture to hospitals and sports arenas; each case emphasizes the interdisciplinarity of the building design activity in order to help readers gain a better understanding of the complex approach needed for energy efficient building design

International Conference On Functional Materials And Metallurgy Icofm 2014

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Author : Farhana Diyanan
language : en
Publisher:
Release Date : 2015-07

International Conference On Functional Materials And Metallurgy Icofm 2014 written by Farhana Diyanan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07 with Materials categories.

Selected, peer reviewed papers from the International Conference on Functional Materials and Metallurgy (ICoFM 2014), September 17-18, 2014, Pulau Pinang, Malaysia

Morphological And Optical Properties Of Porous Gallium Nitride Gan Fabricated By Photoelectrochemical Process

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Author : Sook Fong Cheah
language : en
Publisher:
Release Date : 2015

Morphological And Optical Properties Of Porous Gallium Nitride Gan Fabricated By Photoelectrochemical Process written by Sook Fong Cheah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Gallium nitride categories.

Fabrication And Characterization Of Gallium Nitride Based Heterojunctions Etched By Photoelectrochemical Wet Etching

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Author : Jie Gao
language : en
Publisher:
Release Date : 2006

Fabrication And Characterization Of Gallium Nitride Based Heterojunctions Etched By Photoelectrochemical Wet Etching written by Jie Gao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Etching categories.

Photoelectrochemical Etching Of Gan For High Quality Optical Devices

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Author : Adele C. Tamboli
language : en
Publisher:
Release Date : 2009

Photoelectrochemical Etching Of Gan For High Quality Optical Devices written by Adele C. Tamboli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Gallium nitride has become an important semiconductor material for a variety of device applications, including light emitting diodes (LEDs), lasers, and transistors. One of the main challenges in GaN device fabrication is the chemical stability of GaN which leads to a lack of wet etching techniques. Instead, dry etching is used almost exclusively, leading to ion damage and poor selectivity between different layers. In this dissertation, we discuss photoelectrochemical (PEC) etching, a photoassisted wet etch technique that can be used to etch GaN and its alloys. We develop new aspects of this technique to extend its applicability to a larger variety of devices and use the technique to fabricate a few optical devices, including microdisk lasers.

Sol Gel Spin Coating Growth Of Gallium Nitride Thin Films A Simple Safe And Cheap Approach Penerbit Usm

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Author : Fong Chee Yong
language : en
Publisher: Penerbit USM
Release Date : 2019

Sol Gel Spin Coating Growth Of Gallium Nitride Thin Films A Simple Safe And Cheap Approach Penerbit Usm written by Fong Chee Yong and has been published by Penerbit USM this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.

Wide direct band gap gallium nitride (GaN) semiconductor has received significant attention as an ideal material for various applications in the optoelectronic devices. One major use of GaN is the development of energy-efficient solid state light-emitting diodes. Currently, most commercially available GaN semiconductor are produced through advanced deposition techniques which involve sophisticated technologies and are relatively expensive and complicated to setup. As an alternative, the sol-gel spin coating method, which is relatively simpler, cheaper, safer, and more scalable was proposed. In this book, the process route and recipe for producing highly c-oriented crystalline GaN thin films via the sol-gel spin coating approach were described in detail. Some insights into the factors affecting the surface morphology as well as structural and optical properties of the deposited films were presented. Eventually, this book could inspire further studies into the development of low-cost GaN thin films.

Gallium Nitride Sensor Devices Fabrication Techniques And Characterisation

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Author :
language : en
Publisher:
Release Date : 2011

Gallium Nitride Sensor Devices Fabrication Techniques And Characterisation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.