Study of Titanium Dioxide Based Dilute Magnetic Semiconductors

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Publisher : ProQuest
ISBN 13 : 9780549821618
Total Pages : pages
Book Rating : 4.8/5 (216 download)

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Book Synopsis Study of Titanium Dioxide Based Dilute Magnetic Semiconductors by : Bakhtyar Ali

Download or read book Study of Titanium Dioxide Based Dilute Magnetic Semiconductors written by Bakhtyar Ali and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dilute magnetic semiconductors (DMSs) with high Curie temperature are highly desirable in spintronics applications. Transition metal doped oxides such as cobalt (Co), chromium (Cr), copper (Cu) doped TiO 2, ZnO, and SnO 2 are being studied for the last few years. Among other DMSs Co x Ti (1-x) O 2 anatase and rutile has been observed to have high T c (~400K). It is transparent in the visible and near infrared regions with a sizable band gap and appreciable conductivity. Therefore, it is believed to be very useful candidate for the fabrication of magnetic semiconductor devices. It has been shown that the achievement of magnetic percolation effect in DMSs is strongly linked to the nature of dopant and synthesis procedure which eventually leads to defects in the material. In this thesis we report the study of Co doped TiO 2 thin films and Cu:Co codoped TiO 2 nanopowders. Thin films of Co doped TiO 2 on silicon and quartz substrates are synthesized by pulsed laser deposition (PLD). Various oxygen partial pressures (P O2), ranging from 6.6 mPa to 53 Pa, are used to vary the oxygen content in the samples. Crystal structure and transport/ magnetic properties of Co x Ti 1-x O 2 (0.01 = x= 0.06) thin films are found to have a strong dependence on oxygen stoichiometry. X-ray diffraction (XRD) data reveal the presence of mixed phase material containing both anatase and rutile. However, the stability of each phase depends on the P O2 present in the chamber during the growth of the films. X-ray Photoelectron Spectroscopy (XPS) shows that Co is substituted in TiO 2 and is in the 2+ oxidation state. There is an enhancement in electrical conductivity and magnetization resulting from off stoichiometric (deficient) oxygen. The resistivity data fit well with the simple thermal activation model, giving activation energy values of 20 to 140 meV. In the second part we have studied the role of Cu codoping and oxygen vacancies in enhancing/stabilizing room temperature ferromagnetic interactions in Co doped TiO 2 nanopowder (cobalt being 5%, well bellow the cation percolation limit for TiO 2). Analyses of the XRD, TEM and XPS data reveal the cobalt incorporation into the lattice structure with no sign of phase segregations. The as-prepared paramagnetic Co-TiO 2 powder is rendered ferromagnetic by controlling the point defects (oxygen vacancies) in the sample. Interestingly, Cu codoping enhances the magnetization by an order of magnitude in the reduced Co doped TiO 2 . We believe that impurity band exchange mechanism is a plausible model in our Co-TiO 2 sample. The implication of the effect of Cu doping in Co doped sample is also discussed. We have also shown that the enhancement of ferromagnetism with additional doping in Co doped TiO 2 is a reversible effect.

Semiconductors, Metal Oxides, and Composites: Metallization and Electrodeposition of Thin Films and Nanostructures

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Publisher : The Electrochemical Society
ISBN 13 : 156677800X
Total Pages : 234 pages
Book Rating : 4.5/5 (667 download)

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Book Synopsis Semiconductors, Metal Oxides, and Composites: Metallization and Electrodeposition of Thin Films and Nanostructures by : G. Oskam

Download or read book Semiconductors, Metal Oxides, and Composites: Metallization and Electrodeposition of Thin Films and Nanostructures written by G. Oskam and published by The Electrochemical Society. This book was released on 2010-02 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium provided a forum for current work on the electrodeposition and characterization of functional coatings and nanostructures. Central issues include the control of size and architecture and the ample choices and demands of substrate and deposited materials. The focus materials of this symposium were semiconductors, oxides and composites with e.g. ceramic nanoparticles or nanotubes.

TiO2 Nanoparticles

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Publisher : John Wiley & Sons
ISBN 13 : 3527347240
Total Pages : 252 pages
Book Rating : 4.5/5 (273 download)

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Book Synopsis TiO2 Nanoparticles by : Aiguo Wu

Download or read book TiO2 Nanoparticles written by Aiguo Wu and published by John Wiley & Sons. This book was released on 2020-06-02 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique book that summarizes the properties, toxicology, and biomedical applications of TiO2-based nanoparticles Nanotechnology is becoming increasingly important for products used in our daily lives. Nanometer-sized titanium dioxide (TiO2) are widely used in industry for different purposes, such as painting, sunscreen, printing, cosmetics, biomedicine, and so on. This book summarizes the advances of TiO2 based nanobiotechnology and nanomedicine, covering materials properties, toxicological research, and biomedical application, such as antibacter, biosensing, and cancer theranostics. It uniquely integrates the TiO2 applications from physical properties, toxicology to various biomedical applications, and includes black TiO2 based cancer theranostics. Beginning with a comprehensive introduction to the properties and applications of nanoparticles, TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine offers chapters on: Toxicity of TiO2 Nanoparticles; Antibacterial Applications of TiO2 Nanoparticles; Surface Enhanced Raman Spectrum of TiO2 Nanoparticle for Biosensing (TiO2 Nanoparticle Served as SERS Sensing Substrate); TiO2 as Inorganic Photosensitizer for Photodynamic Therapy; Cancer Theranostics of Black TiO2 Nanoparticles; and Neurodegenerative Disease Diagnostics and Therapy of TiO2-Based Nanoparticles. This title: Blends the physical properties, toxicology of TiO2 nanoparticles to the many biomedical applications Includes black TiO2 based cancer theranostics in its coverage Appeals to a broad audience of researchers in academia and industry working on nanomaterials-based biosensing, drug delivery, nanomedicine TiO2 Nanoparticles: Applications in Nanobiotechnology, Theranostics and Nanomedicine is an ideal book for medicinal chemists, analytical chemists, biochemists, materials scientists, toxicologists, and those in the pharmaceutical industry.

Emerging Research in Science and Engineering Based on Advanced Experimental and Computational Strategies

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Publisher : Springer Nature
ISBN 13 : 3030314030
Total Pages : 528 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Emerging Research in Science and Engineering Based on Advanced Experimental and Computational Strategies by : Felipe de Almeida La Porta

Download or read book Emerging Research in Science and Engineering Based on Advanced Experimental and Computational Strategies written by Felipe de Almeida La Porta and published by Springer Nature. This book was released on 2020-01-02 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors discuss some of the main challenges and new opportunities in science and engineering research, which involve combining computational and experimental approaches as a promising strategy for arriving at new insights into composition–structure–property relations, even at the nanoscale. From a practical standpoint, the authors show that significant improvements in the material/biomolecular foresight by design, including a fundamental understanding of their physical and chemical properties, are vital and will undoubtedly help us to reach a new technological level in the future.

Updates on Titanium Dioxide

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Publisher : BoD – Books on Demand
ISBN 13 : 1803556722
Total Pages : 260 pages
Book Rating : 4.8/5 (35 download)

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Book Synopsis Updates on Titanium Dioxide by : Bochra Bejaoui

Download or read book Updates on Titanium Dioxide written by Bochra Bejaoui and published by BoD – Books on Demand. This book was released on 2023-08-30 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium dioxide (TiO2) has received a lot of attention due to its inexpensive cost, benign nature, and great photocatalytic potential. TiO2 has numerous applications, including in photocatalysts, Li-ion batteries, solar cells, and medical research. However, its performance is unsatisfactory due to a variety of issues, including a wide band gap (3.01 to 3.2 eV) and quick electron–hole pair recombination (1012 to 1011 s). Many efforts have been made to improve the qualities of TiO2, such as structural and dopant changes, which expand its applications. This book focuses on the properties of TiO2-modified nanoparticles, including their synthesis, alterations, and applications.

Defect-Induced Magnetism in Oxide Semiconductors

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Publisher : Elsevier
ISBN 13 : 0323909086
Total Pages : 738 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Defect-Induced Magnetism in Oxide Semiconductors by : Parmod Kumar

Download or read book Defect-Induced Magnetism in Oxide Semiconductors written by Parmod Kumar and published by Elsevier. This book was released on 2023-05-26 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defect-Induced Magnetism in Oxide Semiconductors provides an overview of the latest advances in defect engineering to create new magnetic materials and enable new technological applications. First, the book introduces the mechanisms, behavior, and theory of magnetism in oxide semiconductors and reviews the methods of inducing magnetism in these materials. Then, strategies such as pulsed laser deposition and RF sputtering to grow oxide nanostructured materials with induced magnetism are discussed. This is followed by a review of the most relevant postdeposition methods to induce magnetism in oxide semiconductors including annealing, ion irradiation, and ion implantation. Examples of defect-induced magnetism in oxide semiconductors are provided along with selected applications. This book is a suitable reference for academic researchers and practitioners and for people engaged in research and development in the disciplines of materials science and engineering. - Reviews the magnetic, electrical, dielectric and optical properties of oxide semiconductors with defect-induced magnetism - Discusses growth and post-deposition strategies to grow oxide nanostructured materials such as oxide thin films with defect-induced magnetism - Provides examples of materials with defect-induced magnetism such as zinc oxide, cerium dioxide, hafnium dioxide, and more

Pulsed Laser Deposition of Thin Films

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Publisher : John Wiley & Sons
ISBN 13 : 0470052112
Total Pages : 754 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Pulsed Laser Deposition of Thin Films by : Robert Eason

Download or read book Pulsed Laser Deposition of Thin Films written by Robert Eason and published by John Wiley & Sons. This book was released on 2007-12-14 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by major contributors to the field, this text summarizes current or newly emerging pulsed laser deposition application areas. It spans the field of optical devices, electronic materials, sensors and actuators, biomaterials, and organic polymers. Every scientist, technologist and development engineer who has a need to grow and pattern, to apply and use thin film materials will regard this book as a must-have resource.

Dissertation Abstracts International

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Publisher :
ISBN 13 :
Total Pages : 780 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Titanium Dioxide

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Publisher : BoD – Books on Demand
ISBN 13 : 1789233267
Total Pages : 520 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis Titanium Dioxide by : Dongfang Yang

Download or read book Titanium Dioxide written by Dongfang Yang and published by BoD – Books on Demand. This book was released on 2018-06-27 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium dioxide is currently being used in many industrial products. It provides unique photocatalytic properties for water splitting and purification, bacterial inactivation, and organics degradation. It has also been widely used as the photoanode for dye-sensitized solar cells and coatings for self-cleaning surfaces, biomedical implants, and nanomedicine. This book covers various aspects of titanium dioxide nanomaterials including their unique one-dimensional, two-dimensional, mesoporous, and hierarchical nanostructures and their synthetic methods such as sol-gel, hydrothermal, anodic oxidation, and electrophoretic deposition, as well as its key applications in environmental and energy sectors. Through these 24 chapters written by experts from the international scientific community, readers will have access to a comprehensive overview of the recent research and development findings on the titanium dioxide nanomaterials.

Functional Metal Oxides

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Publisher : John Wiley & Sons
ISBN 13 : 3527654887
Total Pages : 478 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Functional Metal Oxides by : Satishchandra Balkrishna Ogale

Download or read book Functional Metal Oxides written by Satishchandra Balkrishna Ogale and published by John Wiley & Sons. This book was released on 2013-11-08 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional oxides are used both as insulators and metallic conductors in key applications across all industrial sectors. This makes them attractive candidates in modern technology ? they make solar cells cheaper, computers more efficient and medical instrumentation more sensitive. Based on recent research, experts in the field describe novel materials, their properties and applications for energy systems, semiconductors, electronics, catalysts and thin films. This monograph is divided into 6 parts which allows the reader to find their topic of interest quickly and efficiently. * Magnetic Oxides * Dopants, Defects and Ferromagnetism in Metal Oxides * Ferroelectrics * Multiferroics * Interfaces and Magnetism * Devices and Applications This book is a valuable asset to materials scientists, solid state chemists, solid state physicists, as well as engineers in the electric and automotive industries.

Comprehensive Nanoscience and Technology

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Publisher : Academic Press
ISBN 13 : 0123743966
Total Pages : 2785 pages
Book Rating : 4.1/5 (237 download)

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Book Synopsis Comprehensive Nanoscience and Technology by :

Download or read book Comprehensive Nanoscience and Technology written by and published by Academic Press. This book was released on 2010-10-29 with total page 2785 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Introduction: Nanotechnology and its underpinning sciences are progressing with unprecedented rapidity. With technical advances in a variety of nanoscale fabrication and manipulation technologies, the whole topical area is maturing into a vibrant field that is generating new scientific research and a burgeoning range of commercial applications, with an annual market already at the trillion dollar threshold. The means of fabricating and controlling matter on the nanoscale afford striking and unprecedented opportunities to exploit a variety of exotic phenomena such as quantum, nanophotonic and nanoelectromechanical effects. Moreover, researchers are elucidating new perspectives on the electronic and optical properties of matter because of the way that nanoscale materials bridge the disparate theories describing molecules and bulk matter. Surface phenomena also gain a greatly increased significance; even the well-known link between chemical reactivity and surface-to-volume ratio becomes a major determinant of physical properties, when it operates over nanoscale dimensions. Against this background, this comprehensive work is designed to address the need for a dynamic, authoritative and readily accessible source of information, capturing the full breadth of the subject. Its six volumes, covering a broad spectrum of disciplines including material sciences, chemistry, physics and life sciences, have been written and edited by an outstanding team of international experts. Addressing an extensive, cross-disciplinary audience, each chapter aims to cover key developments in a scholarly, readable and critical style, providing an indispensible first point of entry to the literature for scientists and technologists from interdisciplinary fields. The work focuses on the major classes of nanomaterials in terms of their synthesis, structure and applications, reviewing nanomaterials and their respective technologies in well-structured and comprehensive articles with extensive cross-references. It has been a constant surprise and delight to have found, amongst the rapidly escalating number who work in nanoscience and technology, so many highly esteemed authors willing to contribute. Sharing our anticipation of a major addition to the literature, they have also captured the excitement of the field itself in each carefully crafted chapter. Along with our painstaking and meticulous volume editors, full credit for the success of this enterprise must go to these individuals, together with our thanks for (largely) adhering to the given deadlines. Lastly, we record our sincere thanks and appreciation for the skills and professionalism of the numerous Elsevier staff who have been involved in this project, notably Fiona Geraghty, Megan Palmer and Greg Harris, and especially Donna De Weerd-Wilson who has steered it through from its inception. We have greatly enjoyed working with them all, as we have with each other.

APS Science

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Publisher :
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis APS Science by : Advanced Photon Source (Research facility)

Download or read book APS Science written by Advanced Photon Source (Research facility) and published by . This book was released on 2004 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metal Oxide Nanoparticles in Organic Solvents

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Publisher : Springer Science & Business Media
ISBN 13 : 1848826710
Total Pages : 223 pages
Book Rating : 4.8/5 (488 download)

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Book Synopsis Metal Oxide Nanoparticles in Organic Solvents by : Markus Niederberger

Download or read book Metal Oxide Nanoparticles in Organic Solvents written by Markus Niederberger and published by Springer Science & Business Media. This book was released on 2009-09-17 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Nanoparticles in Organic Solvents discusses recent advances in the chemistry involved for the controlled synthesis and assembly of metal oxide nanoparticles, the characterizations required by such nanoobjects, and their size and shape depending properties. In the last few years, a valuable alternative to the well-known aqueous sol-gel processes was developed in the form of nonaqueous solution routes. Metal Oxide Nanoparticles in Organic Solvents reviews and compares surfactant- and solvent-controlled routes, as well as providing an overview of techniques for the characterization of metal oxide nanoparticles, crystallization pathways, the physical properties of metal oxide nanoparticles, their applications in diverse fields of technology, and their assembly into larger nano- and mesostructures. Researchers and postgraduates in the fields of nanomaterials and sol-gel chemistry will appreciate this book’s informative approach to chemical formation mechanisms in relation to metal oxides.

Oxide Semiconductors for Solar Energy Conversion

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Publisher : CRC Press
ISBN 13 : 1439848467
Total Pages : 419 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Oxide Semiconductors for Solar Energy Conversion by : Janusz Nowotny

Download or read book Oxide Semiconductors for Solar Energy Conversion written by Janusz Nowotny and published by CRC Press. This book was released on 2016-04-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oxide semiconductors, including titanium dioxide (TiO2), are increasingly being considered as replacements for silicon in the development of the next generation of solar cells. Oxide Semiconductors for Solar Energy Conversion: Titanium Dioxide presents the basic properties of binary metal oxide semiconductors and the performance-related properties

NMR of Quadrupolar Nuclei in Solid Materials

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Publisher : John Wiley & Sons
ISBN 13 : 0470973986
Total Pages : 564 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis NMR of Quadrupolar Nuclei in Solid Materials by : Roderick E. Wasylishen

Download or read book NMR of Quadrupolar Nuclei in Solid Materials written by Roderick E. Wasylishen and published by John Wiley & Sons. This book was released on 2012-08-07 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The content of this volume has been added to eMagRes (formerly Encyclopedia of Magnetic Resonance) - the ultimate online resource for NMR and MRI. Over the past 20 years technical developments in superconducting magnet technology and instrumentation have increased the potential of NMR spectroscopy so that it is now possible to study a wide range of solid materials. In addition, one can probe the nuclear environments of many other additional atoms that possess the property of spin. In particular, it is possible to carry out NMR experiments on isotopes that have nuclear spin greater that ½ (i.e. quadrupolar nuclei). Since more that two-thirds of all NMR active isotopes are quadrupolar nuclei, applications of NMR spectroscopy with quadrupolar nuclei are increasing rapidly. The purpose of this handbook is to provide under a single cover the fundamental principles, techniques and applications of quadrupolar NMR as it pertains to solid materials. Each chapter has been prepared by an expert who has made significant contributions to out understanding and appreciation of the importance of NMR studies of quadrupolar nuclei in solids. The text is divided into three sections: The first provides the reader with the background necessary to appreciate the challenges in acquiring and interpreting NMR spectra of quadrupolar neclei in solids. The second presents cutting-edge techniques and methodology for employing these techniques to investigate quadrupolar nuclei in solids. The final section explores applications of solid-state NMR studies of solids ranging from investigations of dynamics, characterizations of biological samples, organic and inorganic materials, porous materials, glasses, catalysts, semiconductors and high-temperature superconductors. About EMR Handbooks / eMagRes Handbooks The Encyclopedia of Magnetic Resonance (up to 2012) and eMagRes (from 2013 onward) publish a wide range of online articles on all aspects of magnetic resonance in physics, chemistry, biology and medicine. The existence of this large number of articles, written by experts in various fields, is enabling the publication of a series of EMR Handbooks / eMagRes Handbooks on specific areas of NMR and MRI. The chapters of each of these handbooks will comprise a carefully chosen selection of articles from eMagRes. In consultation with the eMagRes Editorial Board, the EMR Handbooks / eMagRes Handbooks are coherently planned in advance by specially-selected Editors, and new articles are written (together with updates of some already existing articles) to give appropriate complete coverage. The handbooks are intended to be of value and interest to research students, postdoctoral fellows and other researchers learning about the scientific area in question and undertaking relevant experiments, whether in academia or industry. Have the content of this Handbook and the complete content of eMagRes at your fingertips! Visit: www.wileyonlinelibrary.com/ref/eMagRes View other eMagRes publications here

Innovative Processing and Manufacturing of Advanced Ceramics and Composites II

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Publisher : John Wiley & Sons
ISBN 13 : 1118771508
Total Pages : 212 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Innovative Processing and Manufacturing of Advanced Ceramics and Composites II by : Tatsuki Ohji

Download or read book Innovative Processing and Manufacturing of Advanced Ceramics and Composites II written by Tatsuki Ohji and published by John Wiley & Sons. This book was released on 2014-02-03 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains collection of papers from the below symposia held during the 10th Pacific Rim Conference on Ceramic and Glass Technology (PacRim10), June 2-7, 2013, in Coronado, California 2012: Novel, Green, and Strategic Processing and Manufacturing Technologies Polymer Derived Ceramics and Composites Advanced Powder Processing and Manufacturing Technologies Synthesis and Processing of Materials Using Electric Fields/Currents

Modern Age Environmental Problems and their Remediation

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Publisher : Springer
ISBN 13 : 3319645013
Total Pages : 244 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Modern Age Environmental Problems and their Remediation by : Mohammad Oves

Download or read book Modern Age Environmental Problems and their Remediation written by Mohammad Oves and published by Springer. This book was released on 2017-10-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a novel picture in current advances in research of theoretical and practical frameworks of environmental problems and solutions taken from the latest empirical research findings. The book deals with basic concepts and principles of process, modern biochemical and molecular approaches, genomics and metagenomics, proteomics, remediation strategies of various hazardous pollutants, microbial carbon sequestration and remediation, phytoremediation, bioleaching, biosorption, upscaling of systems, and considers the merit and demerits based on the current literature related to environmental problems and solutions. The book is aimed at professionals, researchers, academicians, and students who would like to improve their understanding of the strategic role of environment protection and advanced applied technologies at different levels. It will be useful for the experienced engineer or scientist working in the field.