1.

Record Nr.

UNINA9910818920903321

Autore

Dorsch Manuel

Titolo

Detailed modeling of si engines in fuel consumption simulations for functional analysis. / / Manuel Dorsch

Pubbl/distr/stampa

Berlin, Germany : , : Logos Verlag Berlin GmbH, , [2016]

ISBN

3-8325-9509-0

Descrizione fisica

1 online resource (159 pages)

Disciplina

515.7246

Soggetti

Numerical range

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

PublicationDate: 20160630

Sommario/riassunto

Long description: The aim of this thesis is to establish a coupled modeling approach to simulate fuel consumption and in-cylinder gas emissions of a passenger car in various driving cycles (NEDC, RDE, WLTP). Combining models of the engine control unit and the mechanical vehicle powertrain with a crank-angle based combustion engine simulation opens up the possibility to support the development and calibration of future engines, demonstrated here for a turbo-charged spark ignited engine with direct injection and a fully-variable valvetrain. Thermodynamic processes are implemented within a 1D gas exchange model which allows to consider not only steady-state but also transient engine operation.   The coupled system is extended by calculations of engine-out emissions considering the formation of nitrogen oxide (NOx), carbon monoxide (CO), and hydrocarbons (HC). Furthermore, tailpipe emissions are determined in an additional simulation model. The successful validation of this complex coupling technique is presented with exemplary results from all stages of the validation process. Finally, the advantage of this simulation methodology is shown by several application examples demonstrating the attained capabilities.



2.

Record Nr.

UNINA9910896352103321

Titolo

Logos : die Fachzeitschrift für Logopädie und Sprachtherapie

Pubbl/distr/stampa

Stuttgart : , : G. Fischer

Descrizione fisica

1 online resource

Disciplina

616.85/5/005

Soggetti

Communicative disorders

Communicative disorders in children

Communication Disorders

Periodical

Periodicals.

Lingua di pubblicazione

Tedesco

Formato

Materiale a stampa

Livello bibliografico

Periodico

Note generali

Title from cover.



3.

Record Nr.

UNINA9911019153103321

Titolo

Modern biocatalysis : stereoselective and environmentally friendly reactions / / edited by Wolf-Dieter Fessner and Thorleif Anthonsen

Pubbl/distr/stampa

Weinheim, : Wiley-VCH, c2009

ISBN

9786612025471

9781282025479

1282025473

9783527623839

3527623833

9783527623846

3527623841

Descrizione fisica

1 online resource (401 p.)

Classificazione

58.30

35.17

Altri autori (Persone)

FessnerW.-D (Wolf-Dieter)

AnthonsenThorleif

Disciplina

660.634

Soggetti

Enzymes - Biotechnology

Catalysis

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Modern Biocatalysis; Contents; Preface; List of Contributors; 1: Fluorescence Assays for Biotransformations; 1.1 Introduction; 1.2 Alcohol Dehydrogenases (ADHs) and Aldolases; 1.2.1 Chiral Fluorogenic ADH Substrates; 1.2.2 Fluorogenic Aldolase Probes; 1.2.3 Transaldolases and Transketolases; 1.2.4 Enolase Probe; 1.3 Lipases and Esterases; 1.3.1 Assays on Solid Support; 1.3.2 The Clips-O Substrates with Periodate; 1.3.3 Esters of Fluorogenic Cyanohydrins and Hydroxyketones; 1.3.4 Fluorogenic Acyloxymethyl Ethers; 1.3.5 FRET-Lipase Probes; 1.4 Other Hydrolases; 1.4.1 Epoxide Hydrolases

1.4.2 Amidases and Proteases1.4.3 Phosphatases; 1.5 Baeyer-Villigerases; 1.6 Conclusion; Acknowledgment; References; 2: Immobilization as a Tool for Improving Enzymes; 2.1 Introduction; 2.2 Adsorption/Electrostatic Interactions; 2.2.1 Van der Waals Interactions; 2.2.2 Hydrogen Bonds; 2.2.3 Ionic Interactions; 2.3 Encapsulation; 2.4



Covalent Binding/Cross-linking; 2.5 Conclusion; Acknowledgments; References; 3: Continuous-flow Microchannel Reactors with Surface-immobilized Biocatalysts; 3.1 Introduction

3.2 Biocatalytic Synthesis Using Microreaction Technology with Free and Immobilized Enzymes3.3 Novel Microfluidic Immobilized Enzyme Reactors; 3.3.1 Microreactor Design; 3.3.2 Enzyme Immobilization; 3.4 Enzymatic Hydrolysis of Lactose; 3.4.1 Catalytic Effectiveness of Immobilized CelB; 3.4.2 Continuous Conversion of Lactose; 3.5 Biocatalytic Process Intensification Using Microreaction Technology; 3.6 Conclusions and Outlook; Acknowledgements; References; 4: Activity and Stability of Proteases in Hydrophilic Solvents; 4.1 Introduction

4.2 Activity and Selectivity of Proteases in Synthesis of Carbohydrate Fatty Acid Esters4.3 Enzyme Stability and Conformation; 4.4 Solvent Engineering; 4.5 Conclusion; References; 5: Importance of Enzyme Formulation for the Activity and Enantioselectivity of Lipases in Organic Solvents; 5.1 Introduction; 5.2 Lipase Formulations and their Activity and Enantioselectivity in Neat Organic Solvent; 5.3 Why do Additives Affect the Activity and Enantioselectivity of Lipases in Organic Solvent?; 5.4 Conclusions; References

6: Direct Esterification with Dry Mycelia of Molds: a (Stereo)selective, Mild and Efficient Method for Obtaining Structurally Diverse Esters6.1 Mycelia and Biotransformations in Organic Media; 6.2 Screening and Microbiological Aspects; 6.3 Production of Acetates; 6.4 Stereoselective Esterifications of Racemic Alcohols; 6.5 Stereoselective Esterifications of Racemic Carboxylic Acids; 6.6 Partition Phenomena and Equilibrium of Esterification Reactions; 6.7 Conclusions; References; 7: Factors Affecting Enantioselectivity: Allosteric Effects; 7.1 How to Provide Enantiopure Compounds

7.1.1 Kinetic Resolution of Racemic Mixtures Catalyzed by Enzymes

Sommario/riassunto

This reference covers the wide and rapidly growing field of biocatalysis. It combines complementary expertise from such areas as microbiology, enzymology, molecular biology structural biology and organic chemistry, thus highlighting the interdisciplinary nature of the subject.With its special focus on progress and new developments towards environmentally beneficial reactions with high levels of selectivity for the production of key compound classes, this book will enlighten both chemists and biologists as to the advances and opportunities existing in enzyme catalysis.