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1. |
Record Nr. |
UNISALENTO991002222369707536 |
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Autore |
Kodrikas, Panagiotes |
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Titolo |
Ephemerides : 1787-1797 / Panagiotes Kodrikas ; ekdotes Alkes Angelou ; prologos K.Th. Demara |
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Pubbl/distr/stampa |
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Athena : [Bibliopoleion tes Estias], 1963 |
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Descrizione fisica |
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19, 273 p., [1] c. di tav. : 1 ritr. ; 25 cm |
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Collana |
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Homilos meletes tou hellenikou diaphotismou. Nea hellenika keimena |
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Altri autori (Persone) |
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Alkes, Angelos |
Demaras, Konstantinos Theseos |
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Disciplina |
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Soggetti |
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Grecia - Storia - Sec. 18 |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNICASPUV0108071 |
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Autore |
Rebold Benton, Janetta |
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Titolo |
The medieval menagerie : animals in the art of the middle ages / Janetta Rebold Benton |
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Pubbl/distr/stampa |
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New York ; London ; Paris, : Abbeville press, c1992 |
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ISBN |
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Descrizione fisica |
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191 p. : ill. color ; 21 cm |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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3. |
Record Nr. |
UNINA9910807279503321 |
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Autore |
Costard François |
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Titolo |
Electromagnetic compatibility in power electronics / / François Costa, Cyrille Gautier, Eric Labouré, Bertrand Revol |
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Pubbl/distr/stampa |
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London, England ; ; Hoboken, New Jersey : , : ISTE Ltd : , : John Wiley & Sons, , 2014 |
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©2014 |
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ISBN |
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1-118-86318-6 |
1-118-86307-0 |
1-118-86309-7 |
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Descrizione fisica |
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1 online resource (290 p.) |
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Collana |
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Disciplina |
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Soggetti |
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lectromagnetic compatibility |
Power electronics |
Electromagnetic noise |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Cover; Title Page; Contents; Chapter 1. Phenomena of Perturbation in Electrical Systems; 1.1. Electromagnetic perturbations in energy systems; 1.1.1. Introduction; 1.2. Power grid harmonics; 1.2.1 Presentation; 1.2.2. Characterization of the quality of electrical energy; 1.2.3. Relevant standards for harmonic emissions; 1.2.4. Classification of appliances; 1.2.5. The limits of harmonic currents; 1.2.6. Examples of observations of harmonic currents; 1.2.7. Fluorescent lighting scenario |
1.2.8. Practical scenario of the improvement of the total harmonic distortion generated by a variable-frequency drive 1.2.9. Converter with sinusoidal absorption; 1.3. Common-mode and differential-mode conducted perturbations; 1.3.1. Common mode and differential mode; 1.3.2. Crosstalk; 1.4. Measuring electromagnetic perturbations; 1.4.1. The line impedance stabilization network; 1.4.2. Current sensors; 1.4.3. Antennae; 1.4.4. Spectrum analyzer; 1.5. The standards; 1.6. Bibliography; Chapter 2. Fundamental Principles; 2.1. Sources of noise: the switching cell and its control |
2.1.1. Origin of conducted and radiated perturbations in static converters 2.2. Modeling; 2.2.1. Simple model of the switching cell; 2.2.2. More complex model of the switching cell; 2.3. Characterization of coupling functions and parasitic elements; 2.3.1. Passive components and differential-mode effects; 2.3.2. Invisible parasitic elements and common-mode effects; 2.3.3. Parasitic effects contributing to undesirable couplings; 2.4. Electromagnetic compatibility study of a practical scenario: the Buck chopper; 2.4.1. Description of the case study |
2.4.2. Influence of the design parameters of the converter 2.4.3. Influence of technological parameters and control; 2.4.4. Other sources of switching noise; 2.4.5. Other switching modes: soft switching, advantages and constraints; 2.5. EMC study of an insulated DC-DC fly back power supply; 2.5.1. Description of the device; 2.5.2. Creation of the circuit model; 2.5.3. Analysis of switchings in the structure; 2.5.4. Electric simulation of the complete structure; 2.6. Corrected exercise number 1: conducted perturbations of a step-up chopper; 2.7. Answers with comments; 2.8. Bibliography |
Chapter 3. EMC of Complex Electrical Energy Conversion Systems: Electromagnetic Actuators3.1. How to define a complex system?; 3.2. Qualitative study; 3.2.1. Description of the conversion chain; 3.2.2. Reminder of the standards; 3.2.3. Propagation methods; 3.3. Modeling in frequency domain; 3.3.1. Linearization of the switching cell; 3.3.2. Modeling of the perturbation sources; 3.4. Frequency-based representation of an inverter; 3.4.1. Equivalent common-mode source - simplified diagram; 3.4.2. Differential-mode influence; 3.4.3. Proposed frequency-based diagram |
3.5. Modeling of the cables and motors |
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Sommario/riassunto |
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Scientists largely attribute the recent deterioration of the electromagnetic environment to power electronics. This realization has spurred the study of methodical approaches to electromagnetic compatibility designs as explored in this text. The book addresses major challenges, such as handling numerous parameters vital to predicting electro magnetic effects and achieving compliance with line-harmonics norms, while proposing potential solutions. |
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4. |
Record Nr. |
UNINA9910483630703321 |
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Autore |
Kallenborn Roland |
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Titolo |
Chiral Environmental Pollutants : Analytical Methods, Environmental Implications and Toxicology / / by Roland Kallenborn, Heinrich Hühnerfuss, Hassan Y. Aboul-Enein, Imran Ali |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2021 |
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ISBN |
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Edizione |
[2nd ed. 2021.] |
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Descrizione fisica |
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1 online resource (XVI, 323 p. 57 illus., 19 illus. in color.) |
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Disciplina |
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Soggetti |
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Environmental chemistry |
Separation (Technology) |
Pollution |
Food science |
Pharmacology |
Environmental Chemistry |
Separation Science |
Food Science |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Introduction -- Criteria for the selection of a proper enantiomer selective analytical method -- Enantiomer selective high- and ultra-high performance liquid chromatography -- Enantiomer selective electrophoresis and electrochromatography -- Enantiomer selective high-resolution gas chromatography (esHRGC) -- Other methods for the elucidation of molecular structures and mechanistic details of enantiomers -- Quality control and evaluation criteria for enantiomer selective separation methods in environmental sciences -- Enantiomer specific fate and behaviour of chiral contaminants -- Source Characterization and Contamination -- Chirality in environmental toxicity and fate assessments -- Perspectives. |
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Sommario/riassunto |
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Now in its updated second edition, this book describes emerging chiral environmental pollutants and their importance in environmental and human toxicology, as well as enantiomer selective separation and |
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analytical methods. Compared to the first edition from 2001, the book has been completely restructured and a wealth of new material has been added to account for new developments. The book reports on the modern enantiomer selective separation methods, including enantio-selective chromatography techniques, which have even been successfully tested in space during the ESA Rossetta mission. The authors clearly outline why the topic of chiral environmental pollutants has become even more important: many new chiral compounds have been released in recent years (e.g. as new pharmaceuticals or agrochemicals), and traces of these compounds can now be found in the environment. The authors explain that (and how) chirality can be a very important feature for the bioactivityof anthropogenic pollutants. In this book, readers find an introduction to the topic, including all important aspects, from the introduction of new enantiomer selective analytical methods, and of emerging chiral environmental pollutants, to aspects on environmental and human toxicology and exposure, risk assessment, and aspects on climate change as well as other new aspects on chirality in the environment. The book is thus a must-read for everybody working in the field of chiral environmental pollutants, but it is also beneficial for teaching purposes in specialized post-graduate courses in advanced analytical chemistry, pharmaceutical analytics, or environmental chemistry. |
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