Catálogo de libros: Química

2929 Catálogo de libros: Química

Matemáticas y ciencia / Química
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  • Optimisation of a rare earth extraction method
    Montassar Romdhani
    Our present work deals with the optimization of a solid-liquid extraction method of rare earths (cerium, lanthanum, neodymium and yttrium) present in Tunisian phosphogypsum by mechanical agitation, in which we studied the effect of parameters (extraction solvent, contact time, extraction temperature, mass-volume ratio (between phosphogypsum and solvent) and agitation speed) rel...
    Disponible

    56,21 €

  • MODERN SUSTAIN TECH IN TOTAL SYNTHESIS BIOACTIVE NATURAL ..
    Bhubaneswar Mandal / BHUBANESWAR MANDAL SASADHAR MAJHI / Sasadhar Majhi
    Modern Sustainable Techniques in Total Synthesis of Bioactive Natural Products comprises five parts for green tools, such as ultrasonic waves, microwave heating, visible-light photochemistry, organic electrochemistry, and flow chemistry, along with 72 chapters for each bioactive molecule of natural origin. Each chapter explores the natural source, structure, systematic name, st...
    Disponible

    202,90 €

  • Synthesis of gas sensitive materials for semiconductor sensors
    Jergashboj Abdurahmanov / Rizamat Begmatov
    The monograph presents the results of synthesis of porous silica gas-sensitive materials for semiconductor hydrogen sulfide sensors. As a result of studying the activity and selectivity of individual and binary oxides in the oxidation of combustible gases the composition of the catalyst for the gas-sensitive element of the hydrogen sulfide sensor is selected. The selected catal...
    Disponible

    80,49 €

  • Carbon Emissions Change the Ocean Chemistry
    Pourya Zarshenas
    The rising concentration of carbon dioxide in the atmosphere is driving up ocean surface temperatures and causing ocean acidification. Although warming and acidification are different phenomena, they interact to the detriment of marine ecosystems. These changes to the ocean aren’t occurring at the same rates everywhere: there are significant differences across gradients of temp...
    Disponible

    84,48 €

  • Application of some Carbonaceous Materials
    Abhik Chatterjee / Kinkar Biswas
    From last two decades, the use of various carbonaceous materials attract immense attention in the field of material science and organic synthesis. The diverse use of carbon allotrope and its functionalized materials is also noteworthy. In this book, we discuss about the physical and chemical properties of some carbon rich materials. The use of graphene and G-based materials is ...
    Disponible

    96,15 €

  • How Dancing Really Stops the Clock
    MD FACP Robert L Buckingham
    This book is about the theoretical mechanics of how capillary and endothelial cells stay healthy or alternatively what causes them to get sick and die. When their infrastructures begin to lose gravitas from the loss of dance step rhythm counterbalance, the processes that evoke chronic interstitial space inflammation escalate. When this occurs, the end organ cell loses functiona...
    Disponible

    41,72 €

  • How Dancing Really Stops the Clock
    MD FACP Robert L Buckingham
    This book is about the theoretical mechanics of how capillary and endothelial cells stay healthy or alternatively what causes them to get sick and die. When their infrastructures begin to lose gravitas from the loss of dance step rhythm counterbalance, the processes that evoke chronic interstitial space inflammation escalate. When this occurs, the end organ cell loses functiona...
    Disponible

    50,09 €

  • TMPC
    Mohamed Cissouma
    The maritime transport of chemicals requires great care in its entire process. The products transported are varied and numerous, and each product has a certain type of physico-chemical characteristics, so their handling is complex and difficult. The objective of this work is to contribute to a better management of risks on board chemical tankers. We have therefore opted for the...
    Disponible

    88,02 €

  • New amino acids
    Haythem Abda
    4-hydroxyisoleucine, isolated from Fenugreek, a legume from the Mediterranean and Asia, could help regulate blood glucose levels. In several animal studies, this substance stimulated insulin production and improved the body’s sensitivity to this hormone. This amino acid, which is rare in nature and does not exist in humans or animals, has a different mechanism of action than th...
    Disponible

    56,21 €

  • Heterocyclic Corrosion Inhibitors
    Abdellah ELYOUSSFI
    This study investigates the use of new heterocyclic compounds, specifically Imidazole derivatives, as corrosion inhibitors for steel in acidic media. The objective is to establish correlations between molecular structure and corrosion inhibition based on the substituent effect in each series of molecules. The study employs various techniques, including gravimetry, electrochemic...
    Disponible

    60,38 €

  • Corrosion of Calciferous Animals in Ocean Water
    Rajesh Kumar Singh
    The main theme of this book is to explore the information of corrosion and corrosion protection of calciferous in ocean in front world communities to develop corrosive medium by discharge of various types wastes through different sources. The corrosive medium is generated by industrious, fertilizer, agriculture, bio-wastes, effluents, pollutants and particulates. The other fact...
    Disponible

    105,32 €

  • Pre-oxidation and carbon activation of lignin
    Fatima Sahban
    The work presented in this book deals with the physico-chemical and thermo-mechanical aspects accompanying the reactions involved in the preparation of activated carbon from lignin by the physical method. Although the physical method only involves carbonisation and gasification, oxidation of lignin carbonisates at low temperatures has been shown to be useful prior to gasificati...
    Disponible

    30,09 €

  • Food safety
    Jéssica Bitencourt
    Considering that for a food to be of quality it must be free of contaminating microorganisms. In order to avoid foodborne diseases (STDs), the National Health Surveillance Agency (ANVISA) has a regulation that establishes standards to be met by all establishments related to food. Thus, the present book aimed to investigate the hygienic-sanitary conditions of the kitchens of the...
    Disponible

    56,21 €

  • Lead, Cadmium and Arsenic contamination levels
    Ngadi Nsandji Ruffin
    In Kinshasa, market gardening is observed along roadways with intense motorized traffic. The objective of this study is to evaluate their level of contamination in toxic metallic trace elements in order to deduce the safe cultivation distance (useful zone). The results obtained reveal that:- Notwithstanding, the combined effects of rainfall, runoff and watering, it is attested ...
    Disponible

    86,70 €

  • Environmental Chemistry
    Shilpi Shrivastava
    Environmental Chemistry is concerned with the behaviour of chemicals (natural or man-made) in air, water, soils and sediments. It is an interdisciplinary field at the cross roads of important scientific subjects centred around advanced analytical chemistry. It requires knowledge of fundamental principles of many subject areas, including organic chemistry, soil science, biochemi...
    Disponible

    61,57 €

  • Text book of materials characterization techniques and investigation
    Dr. A. Ruban Kumar / Dr. Maruthi N. / Dr. Nandan K. R.
    The main objective of this book is to provide the students with the opportunity to understand the practical and theoretical aspects of the by variying structural properties how electrical and magnetic properties will change. This book targets mainly on multifunctional property materials are being attracted due to its wide variety of applications in various fields of technology....
    Disponible

    61,88 €

  • Synthetic chemistry & heterocyclic systems
    Bhausaheb Karale / Ranjana Jadhav
    The book on Synthetic Chemistry & Heterocyclic System: The Relation with Sub-Title ’Synthesis and Biological Screening of some Halogenated Heterocyclic Compounds’ is primarily intended to boost the attention of researchers in heterocyclic chemistry. The easy methods of synthesis of various heterocyclic compounds will help the researchers to develop the advances in their methodo...
    Disponible

    120,56 €

  • Application of copper nanoparticles to dye retention
    Hassen Agougui / Mahjoub Jabli
    This work presents the synthesis of copper oxide nanoparticles by an ecological method in order to evaluate their performance in the retention of the cationic dye methylene blue by adsorption. The formation of copper oxide nanoparticles was confirmed by different physico-chemical techniques such as powder X-ray diffraction, IR absorption spectroscopy and scanning electron micro...
    Disponible

    61,69 €

  • Oil plants
    Paola MWANAMOKI MBOKOSO
    Oil plants are extremely important for mankind. They are of interest for local food and offer possibilities for processing into products needed for modern life. Soybean oil has long been the world’s most important vegetable fat.Pentaclethra macrophylla benth is an oleaginous plant from the forests of the DR Congo, which the F.A.O. recommends for its development. Its seeds, whic...
    Disponible

    61,57 €

  • Evaluation of Corrosion Inhibitors for Industrial Materials
    Ranganatha S
    Corrosion inhibitors are the chemically active molecules which on adsorption protect the thin films or substrate materials from corrosion. The corrosion protection efficiency of the molecules adsorbed, can be studied by adopting several experimental procedures. Conventionally followed and most reliable technique is weight loss method. The instrumental techniques include, Potent...
    Disponible

    61,44 €

  • Effect of coagulation and flocculation process
    Paula C L Santa Cruz / Ronald F Rodriguez Espinoza / Yrwin F Azabache Liza
    Coagulation and flocculation are the basis of water treatment, for the separation of solid-liquid mixtures, as well as a means to reduce turbidity, and in the present investigation, the effect of the applied speed and dose of aluminum sulfate Al2 (SO4)3, as well as that exerted by the ferric chloride FeCl3-flocculant, was evaluated. To obtain the experimental data, a 'Jar Test'...
    Disponible

    86,77 €

  • Studies on the Synthesis and Catalytic Activity
    Jithendra Kumara K. S.
    The publication with the title 'studies on synthesis and catalytic activity of transition metal Nanocomposite' has a lot of information that you can study it. You can get a lot of benefits after reading this book. This specific book exist new know-how the information that exists in this book represents the condition of the world right now. That is important to you to learn how ...
    Disponible

    130,87 €

  • Metal Phosphides For High Performance Electrochemcial Supercapacitors
    Ranganatha S
    The development in human life style and society implicating depletion of natural resources which are non-renewable because of drastic demand in energy. There are many simultaneous consequences like increased global temperature, pollution w.r,t. air, water and others. Adding to this, improved living standards of ours demands immediate requirement for efficient devices for electr...
    Disponible

    61,44 €

  • ELECTRONIC DEVICES (WCR) and SPIKE PROTEIN derivates ADR
    Giulio Tarro / Khaled Edbey / Mauro Luisetto
    Aim of this work is to observe some epidemiological pattern related heart pathology like pericarditis and myocarditis in last decades and the toxicological effect played by various WRC wireless communication radiations as described by scientific literature.All this related the class age distribution of some Rare ADR by various covid-19 vaccine like Pericarditis and myocarditis ...
    Disponible

    87,12 €

  • Focus On Middle School Chemistry Student Textbook-3rd Edition (hardcover)
    Rebecca W. Mar Keller Ph.D.
    The Focus On Middle School Chemistry Student Textbook, 3rd Edition introduces young students to the scientific discipline of chemistry. Students will learn about the history of chemistry, tools used in chemistry labs, atoms, the periodic table, molecules, chemical bonding, different types of chemical reactions, acids and bases, pH, acid-base neutralization, nutritional chemistr...
    Disponible

    72,92 €

  • METAL HALIDE PEROVSKITES
    JIN ZHONG ZHANG / Qi Pang / Zhiguo Xia / ZHIGUO XIA & QI PANG JIN ZHONG ZHANG
    Metal halide perovskites are the hottest materials currently.This unique compendium covers systematically the fundamental aspects of synthesis, properties, and applications of metal halide perovskites that exhibit unique properties and useful functionalities.Written for beginners and practitioners, this useful reference text provides a good balance between fundamental concepts/...
    Disponible

    121,43 €

  • Aporphinoid Alkaloids of Rare Plants
    Arzikul Panjiev / Olimjon Panjiev / Rikhsivoy Ziyayev
    This monograph is dedicated to the study of the chemistry of aporphinoid alkaloids isolated from Liriodendron, Magnolia and Ziziphus plants which were acclimatized in the conditions of Uzbekistan and the results of scientific research which were studied on field of chemistry by the investigator-author for years are presented and they are summarized. In the pamphlet, the author ...
    Disponible

    79,25 €

  • Studio biologico e fisico-chimico delle piante tradizionali
    Jhon Carlos Castaño O. / Paula Andrea Trujillo Aranzazu
    Dal punto di vista scientifico, è necessario stabilire una relazione tra la medicina tradizionale e le attività chimiche, biologiche e terapeutiche delle piante medicinali presenti nelle regioni del nostro Paese, la Colombia. L’obiettivo di questa ricerca è stato quello di valutare l’attività antimicrobica, antineoplastica e citotossica degli oli essenziali di alcune piante del...
    Disponible

    55,10 €

  • Biological and physico-chemical study of traditional plants
    Jhon Carlos Castaño O. / Paula Andrea Trujillo Aranzazu
    From the scientific point of view, there is a need to establish a relationship between traditional medicine and the chemical, biological and therapeutic activities of medicinal plants found in the regions of our country Colombia. The objective of this research was to evaluate the antimicrobial, antineoplastic and cytotoxic activity of the essential oils of some plants from the ...
    Disponible

    55,10 €

  • Synthesis and Catalytic applications of Pd and Cu NHCs
    Vasu Govardhana Reddy Peddiahgari / Venkata Krishna Reddy Motakatla
    Catalytic processes are highly essential for the sustainable development of organic mimics and thus symbolize the more economical impact. Therefore, study of these methodologies is of immense interest. To develop new chemistry, there is very much need of designing and synthesizing unexisting catalysts with various substituents for effective methodologies. As discussed above, me...
    Disponible

    114,20 €


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