Réactivité de l'ozone à l'interface gaz/solide

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Author :
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (49 download)

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Book Synopsis Réactivité de l'ozone à l'interface gaz/solide by : Jamshid Behin

Download or read book Réactivité de l'ozone à l'interface gaz/solide written by Jamshid Behin and published by . This book was released on 1998 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA REACTIVITE DE L'OZONE SUR LES DIFFERENTS SOLIDES ORGANIQUES ET MINERAUX EST ETUDIEE AFIN DE PROPOSER UN NOUVEAU REACTEUR GAZ-SOLIDE EFFICACE POUR LE BLANCHIMENT CONTINU DE LA PATE A PAPIER A HAUTE CONSISTANCE (33%). LA DECOMPOSITION DE L'OZONE EST MESUREE EN PRESENCE DE DIFFERENTS GARNISSAGES NON CATALYTIQUES COMME SABLE ET LAINE DE VERRE DANS UN REACTEUR A LIT FIXE. UNE CINETIQUE DE PREMIER ORDRE EST CONFIRMEE POUR LA REACTION DE DECOMPOSITION DE L'OZONE. LA DECOMPOSITION THERMIQUE HOMOGENE ET LA DECOMPOSITION NON-CATALYTIQUE HETEROGENE DE L'OZONE SONT NEGLIGEABLES PAR RAPPORT AU TRANSFERT DE L'OZONE EN PHASE GAZEUSE. L'OZONATION DE FIBRES CELLULOSIQUES SECHES ET HYDRATEES, PATE RESINEUX DE PROCEDES KRAFT (ECRUE ET BLANCHIE PAR UN STADE D'OXYGENE) EST ANALYSEE DANS UN REACTEUR SEMI-FERME, SANS AVOIR RECOURS A DES PROTECTEURS DE LA CELLULOSE. LES RESULTATS MONTRENT QU'UNE PREACIDIFICATION AVANT OZONATION EST NECESSAIRE. LE PH EST ABAISSE ENTRE 2 ET 3 A L'AIDE D'ACIDE ACETIQUE. CE GENRE DE PRETRAITEMENT AMELIORE LA REACTIVITE ET L'EFFICACITE DE L'OZONE SUR LA PATE ET PERMET D'ECONOMISER UNE QUANTITE NON NEGLIGEABLE D'OZONE (ENTRE 0,5% ET 0,7% PAR RAPPORT A LA MATIERE SECHE). IL LAISSE EGALEMENT SUPPOSER UNE MEILLEURE SELECTIVITE DANS L'ATTAQUE DE L'OZONE SUR LA LIGNINE RESIDUELLE DE LA PATE. L'ENSEMBLE DE CES RESULTATS A PERMIT LA CONCEPTION D'UN REACTEUR D'OZONATION VERTICAL A CONTRE-COURANT ADAPTE AU BLANCHIMENT CONTINU DE PATE A PAPIER A HAUTE CONSISTANCE. DANS CE TYPE DE REACTEUR, LA REACTIVITE DE L'OZONE EST TRES ELEVEE ET PERMET LA CONSOMMATION TOTALE DE L'OZONE.

ICREEC 2019

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Publisher : Springer Nature
ISBN 13 : 9811554447
Total Pages : 659 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis ICREEC 2019 by : Ahmed Belasri

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Advances in Solid State Fermentation

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Publisher : Springer Science & Business Media
ISBN 13 : 9401706611
Total Pages : 641 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Advances in Solid State Fermentation by : S. Roussos

Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.

Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire?

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Publisher : Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? by : Canada. Department of Fisheries and Oceans

Download or read book Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? written by Canada. Department of Fisheries and Oceans and published by Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir. This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.

Dictionary of Building and Civil Engineering

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Publisher : Taylor & Francis
ISBN 13 : 9780419199106
Total Pages : 472 pages
Book Rating : 4.1/5 (991 download)

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Book Synopsis Dictionary of Building and Civil Engineering by : Don Montague

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Chemical Reaction Engineering and Reactor Technology

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Publisher : CRC Press
ISBN 13 : 1420092693
Total Pages : 638 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Chemical Reaction Engineering and Reactor Technology by : Tapio O. Salmi

Download or read book Chemical Reaction Engineering and Reactor Technology written by Tapio O. Salmi and published by CRC Press. This book was released on 2011-07-01 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of the chemical reactor is crucial for the industrial conversion of raw materials into products and numerous factors must be considered when selecting an appropriate and efficient chemical reactor. Chemical Reaction Engineering and Reactor Technology defines the qualitative aspects that affect the selection of an industrial chemical reactor and couples various reactor models to case-specific kinetic expressions for chemical processes. Offering a systematic development of the chemical reaction engineering concept, this volume explores: Essential stoichiometric, kinetic, and thermodynamic terms needed in the analysis of chemical reactors Homogeneous and heterogeneous reactors Residence time distributions and non-ideal flow conditions in industrial reactors Solutions of algebraic and ordinary differential equation systems Gas- and liquid-phase diffusion coefficients and gas-film coefficients Correlations for gas-liquid systems Solubilities of gases in liquids Guidelines for laboratory reactors and the estimation of kinetic parameters The authors pay special attention to the exact formulations and derivations of mass energy balances and their numerical solutions. Richly illustrated and containing exercises and solutions covering a number of processes, from oil refining to the development of specialty and fine chemicals, the text provides a clear understanding of chemical reactor analysis and design.

El Niño

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Publisher : UNESCO
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis El Niño by : Bruno Voituriez

Download or read book El Niño written by Bruno Voituriez and published by UNESCO. This book was released on 2000 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: El Nino, caprice of the heavens, scapegoat for every calamity? The general public cannot really understand what is behind the El Nino phenomenon. The book offers a tour of the Earth's climate to understand one of its normal but extreme components.

A Frequency Dictionary of French

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Publisher : Routledge
ISBN 13 : 1135973504
Total Pages : 974 pages
Book Rating : 4.1/5 (359 download)

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Book Synopsis A Frequency Dictionary of French by : Deryle Lonsdale

Download or read book A Frequency Dictionary of French written by Deryle Lonsdale and published by Routledge. This book was released on 2009-03-25 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Frequency Dictionary of French is an invaluable tool for all learners of French, providing a list of the 5000 most frequently used words in the language. Based on a 23-million-word corpus of French which includes written and spoken material both from France and overseas, this dictionary provides the user with detailed information for each of the 5000 entries, including English equivalents, a sample sentence, its English translation, usage statistics, and an indication of register variation. Users can access the top 5000 words either through the main frequency listing or through an alphabetical index. Throughout the frequency listing there are thematically-organized lists of the top words from a variety of key topics such as sports, weather, clothing, and family terms. An engaging and highly useful resource, the Frequency Dictionary of French will enable students of all levels to get the most out of their study of French vocabulary. Former CD content is now available to access at www.routledge.com/9780415775311 as support material. Designed for use by corpus and computational linguists it provides the full text in a format that researchers can process and turn into suitable lists for their own research work. Deryle Lonsdale is Associate Professor in the Linguistics and English Language Department at Brigham Young University (Provo, Utah). Yvon Le Bras is Associate Professor of French and Department Chair of the French and Italian Department at Brigham Young University (Provo, Utah).

Organic Solid-State Lasers

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Publisher : Springer
ISBN 13 : 3642367054
Total Pages : 179 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Organic Solid-State Lasers by : Sébastien Forget

Download or read book Organic Solid-State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.

Understanding C4 Evolution and Function

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Author :
Publisher : Frontiers Media SA
ISBN 13 : 2889718646
Total Pages : 185 pages
Book Rating : 4.8/5 (897 download)

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Book Synopsis Understanding C4 Evolution and Function by : Sarah Covshoff

Download or read book Understanding C4 Evolution and Function written by Sarah Covshoff and published by Frontiers Media SA. This book was released on 2021-12-28 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials

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Publisher : Springer
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials by : B. Catoire

Download or read book Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials written by B. Catoire and published by Springer. This book was released on 1992-02-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publication partially sponsored by MRT (French Ministry of Research and Technology."

Arctic Shipping

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Publisher : Routledge
ISBN 13 : 1351037447
Total Pages : 217 pages
Book Rating : 4.3/5 (51 download)

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Book Synopsis Arctic Shipping by : Frédéric Lasserre

Download or read book Arctic Shipping written by Frédéric Lasserre and published by Routledge. This book was released on 2019-09-05 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book considers both the present state of Arctic shipping and possible future trends with reference to the various sectors of maritime transportation: cruise tourism, container traffic and bulk shipping. Ports are analysed as tools that support the strategies of coastal states to foster the development of resource extraction, enhance the attractiveness of Arctic shipping lanes and enable the control of maritime activities through coast guard deployment. The aim of this book is to draw a picture of the trends of Arctic shipping. How is traffic evolving in Canada’s Arctic, or along the Northern Sea Route? Are there significant differences between bulk and container shipping segments when considering the Arctic market? How are the ports and the hinterland developing and what are the strategies behind those? How is the legal framework shaping the evolution of maritime transportation? The contributors to this book consider all of these questions, and more, as they map out the prospects for Arctic shipping and analyse in detail the development of Arctic shipping as a result of multi-variable interactions. This book will be key reading for industry professionals and post-graduate students alike.

Chemical Reaction Engineering and Reactor Technology, Second Edition

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Publisher : CRC Press
ISBN 13 : 1351778099
Total Pages : 628 pages
Book Rating : 4.3/5 (517 download)

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Book Synopsis Chemical Reaction Engineering and Reactor Technology, Second Edition by : Tapio O. Salmi

Download or read book Chemical Reaction Engineering and Reactor Technology, Second Edition written by Tapio O. Salmi and published by CRC Press. This book was released on 2019-07-11 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of the chemical reactor is crucial for the industrial conversion of raw materials into products and numerous factors must be considered when selecting an appropriate and efficient chemical reactor. Chemical Reaction Engineering and Reactor Technology defines the qualitative aspects that affect the selection of an industrial chemical reactor and couples various reactor models to case-specific kinetic expressions for chemical processes. Thoroughly revised and updated, this much-anticipated Second Edition addresses the rapid academic and industrial development of chemical reaction engineering. Offering a systematic development of the chemical reaction engineering concept, this volume explores: essential stoichiometric, kinetic, and thermodynamic terms needed in the analysis of chemical reactors homogeneous and heterogeneous reactors reactor optimization aspects residence time distributions and non-ideal flow conditions in industrial reactors solutions of algebraic and ordinary differential equation systems gas- and liquid-phase diffusion coefficients and gas-film coefficients correlations for gas-liquid systems solubilities of gases in liquids guidelines for laboratory reactors and the estimation of kinetic parameters The authors pay special attention to the exact formulations and derivations of mass energy balances and their numerical solutions. Richly illustrated and containing exercises and solutions covering a number of processes, from oil refining to the development of specialty and fine chemicals, the text provides a clear understanding of chemical reactor analysis and design.

Polymer Derived Ceramics

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Author :
Publisher : DEStech Publications, Inc
ISBN 13 : 1605950009
Total Pages : 490 pages
Book Rating : 4.6/5 (59 download)

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Book Synopsis Polymer Derived Ceramics by : Paolo Colombo

Download or read book Polymer Derived Ceramics written by Paolo Colombo and published by DEStech Publications, Inc. This book was released on 2010 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the foundations of the science of polymer derived ceramics, enriched with many descriptions of applications. Written by a team of selected researchers, the text is a systematic, comprehensive introduction to all phases of polymer derived ceramics from synthesis strategies through properties measurement, and applications. New material is given on the nanolevel structure of PDCs, and it is shown how nano-sized modifications can alter and improve the properties of polymer derived ceramics, including high chemical durability, oxidation resistance, luminescence, and piezo-resistivity. Groundbreaking work is also described on novel precursors such as stoichiometric SiC, BN, and SiBCN ceramics. In terms of technology, this volume explains how PDCs are fabricated and how these novel materials are used in membranes, filters, MEMS, fibers, and micro-components. This book covers: synthesis, structure, properties and applications; strategies for characterizing and synthesizing PDCs; and, original research on pre-ceramic PDC precursors.

Algal Biofuels

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Publisher : Springer
ISBN 13 : 331951010X
Total Pages : 468 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Algal Biofuels by : Sanjay Kumar Gupta

Download or read book Algal Biofuels written by Sanjay Kumar Gupta and published by Springer. This book was released on 2017-02-26 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume focuses on comprehensive state-of-the-art information about the practical aspects of cultivation, harvesting, biomass processing and biofuel production from algae. Chapters cover topics such as synthetic ecological engineering approaches towards sustainable production of biofuel feedstock, and algal biofuel production processes using wastewater. Readers will also discover more about the role of biotechnological engineering in improving ecophysiology, biomass and lipid yields. Particular attention is given to opportunities of commercialization of algal biofuels that provides a realistic assessment of various techno-economical aspects of pilot scale algal biofuel production. The authors also explore the pre-treatment of biomass, catalytic conversion of algal lipids and hydrothermal liquefaction with the biorefinery approach in detail. In a nut shell, this volume will provide a wealth of information based on a realistic evaluation of contemporary developments in algal biofuel research with an emphasis on pilot scale studies. Researchers studying and working in the areas of environmental science, biotechnology, genetic engineering and biochemistry will find this work instructive and informative.

Deactivation and Regeneration of Zeolite Catalysts

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Author :
Publisher : World Scientific
ISBN 13 : 1848166370
Total Pages : 359 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Deactivation and Regeneration of Zeolite Catalysts by : M. Guisnet

Download or read book Deactivation and Regeneration of Zeolite Catalysts written by M. Guisnet and published by World Scientific. This book was released on 2011 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: In chemical processes, the progressive deactivation of solid catalysts is a major economic concern and mastering their stability has become as essential as controlling their activity and selectivity. For these reasons, there is a strong motivation to understand the mechanisms leading to any loss in activity and/or selectivity and to find out the efficient preventive measures and regenerative solutions that open the way towards cheaper and cleaner processes. This book covers in a comprehensive way both the fundamental and applied aspects of solid catalyst deactivation and encompasses the state-of-the-art in the field of reactions catalyzed by zeolites. This particular choice is justified by the widespread use of molecular sieves in refining, petrochemicals and organic chemicals synthesis processes, by the large variety in the nature of their active sites (acid, base, acid-base, redox, bifunctional) and especially by their peculiar features, in terms of crystallinity, structural order and textural properties, which make them ideal models for heterogeneous catalysis. The aim of this book is to be a critical review in the field of zeolite deactivation and regeneration, by collecting a series of contributions by experts in the field which describe the factors, explain the techniques to study the causes and suggest methods to prevent (or limit) catalyst deactivation. At the same time, an anthology of commercial processes and exemplar cases provides the reader with theoretical insights and practical hints on the deactivation mechanisms and draws attention to the key role played by the loss of activity on process design and industrial practice.

FUNDAMENTALS OF HEAT AND MASS TRANSFER

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Author :
Publisher : PHI Learning Pvt. Ltd.
ISBN 13 : 8120340310
Total Pages : 506 pages
Book Rating : 4.1/5 (23 download)

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Book Synopsis FUNDAMENTALS OF HEAT AND MASS TRANSFER by : B. K. VENKANNA

Download or read book FUNDAMENTALS OF HEAT AND MASS TRANSFER written by B. K. VENKANNA and published by PHI Learning Pvt. Ltd.. This book was released on 2010-01-01 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This comprehensive text on the basics of heat and mass transfer provides a well-balanced treatment of theory and mathematical and empirical methods used for solving a variety of engineering problems. The book helps students develop an intuitive and practical under-standing of the processes by emphasizing the underlying physical phenomena involved. Focusing on the requirement to clearly explain the essential fundamentals and impart the art of problem-solving, the text is written to meet the needs of undergraduate students in mechanical engineering, production engineering, industrial engineering, auto-mobile engineering, aeronautical engineering, chemical engineering, and biotechnology.