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1. |
Record Nr. |
UNISA990002014360203316 |
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Autore |
MAFFEI, Giorgio |
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Titolo |
Riviste d'arte d'avanguardia : esoeditoria negli anni Sessanta e Settanta in Italia / Giorgio Maffei, Patrizio Peterlini ; con la collaborazione di Marco Bazzini |
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Pubbl/distr/stampa |
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Milano : Sylvestre Bonnard, copyr. 2005 |
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ISBN |
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Descrizione fisica |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Arte - Italia - 1960-1980 - Periodici |
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Collocazione |
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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. |
UNISOBSOB008545 |
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Titolo |
Interectative English : Corso completo di lingua inglese |
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Pubbl/distr/stampa |
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Novara : Istituto Geografico De Agostino, 2000 |
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Descrizione fisica |
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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. |
UNINA9910700152803321 |
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Autore |
Ockerman Darwin J |
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Titolo |
Simulation of streamflow and suspended-sediment concentrations and loads in the lower Nueces River watershed, downstream for Lake Corpus Christi to the Nueces Estuary, south Texas, 1958-2008 [[electronic resource] /] / by Darwin J. Ockerman and Franklin T. Heitmuller; in cooperation with the U.S. Army Corps of Engineers, Fort Worth District ... [and others] |
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Pubbl/distr/stampa |
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Reston, Va. : , : U.S. Dept. of the Interior, U.S. Geological Survey, , [2010, i.e. 2011] |
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Descrizione fisica |
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1 online resource (vi, 50 pages) : illustrations (some color), color maps |
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Collana |
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Scientific investigations report ; ; 2010-5194 |
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Altri autori (Persone) |
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Soggetti |
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Streamflow - Texas - Nueces River Watershed - Computer simulation |
Suspended sediments - Texas - Nueces River Watershed - Computer simulation |
Nueces River Watershed (Tex.) |
Nueces River Estuary (Tex.) |
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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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Title from title screen (viewed Apr. 28, 2011). |
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Nota di bibliografia |
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Includes bibliographical references (pages 40-43). |
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4. |
Record Nr. |
UNINA9910829968503321 |
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Autore |
Rood Dean |
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Titolo |
The troubleshooting and maintenance guide for gas chromatographers [[electronic resource] /] / Dean Rood |
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Pubbl/distr/stampa |
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Weinheim, : Wiley-VCH |
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[Chichester, : John Wiley, distributor], c2007 |
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ISBN |
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1-281-08790-4 |
9786611087906 |
3-527-61130-4 |
3-527-61131-2 |
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Edizione |
[4th ed.] |
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Descrizione fisica |
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1 online resource (347 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Gas chromatography |
Gas chromatography - Instruments - Maintenance and repair |
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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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Previous ed. publshed: Weinheim ; New York : Wiley-VCH, c1999, under title: A practical guide to the care, maintenance, and troubleshooting of capillary gas chromatographic systems. |
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Nota di bibliografia |
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Includes bibliographical references (p. 317) and index. |
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Nota di contenuto |
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The Troubleshootingand Maintenance Guide for Gas Chromatographers; Preface; Contents; Intentions and Introduction; 1 Introduction to Capillary Gas Chromatography; 1.1 What Is Gas Chromatography?; 1.2 What Types of Compounds Are Suitable for GC Analysis?; 1.3 The Basic Parts of a Gas Chromatograph; 1.3.1 Gas Supply and Flow Controllers; 1.3.2 Injector; 1.3.3 Capillary Column and Oven; 1.3.4 Detector; 1.3.5 Data System; 1.4 The Chromatogram; 1.5 The Mechanism of Compound Separation; 1.5.1 A Simple Description of the Chromatographic Process |
1.5.2 A Detailed Description of the Chromatographic Process1.6 Factors Affecting Separation; 1.6.1 Stationary Phase; 1.6.2 Compound Structure; 1.6.3 Column Temperature; 2 Basic Definitions and Equations; 2.1 Why Bother?; 2.2 Peak Shapes; 2.2.1 Peak Width (W); 2.2.2 Peak Symmetry; 2.3 Retention; 2.3.1 Retention Time (t(r)); 2.3.2 Adjusted Retention Time (t( ́)(r)); 2.3.3 Retention Factor (k); 2.3.4 |
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Retention Index (I); 2.4 Phase Ratio (β); 2.5 Distribution Constant (K(C)); 2.5.1 K(C) and Column Dimensions; 2.5.2 K(C) and Column Temperature; 2.6 Column Efficiency |
2.6.1 Number of Theoretical Plates (N)2.6.2 Height Equivalent to a Theoretical Plate (H); 2.6.3 Effective Theoretical Plates (N(eff)) and Effective Plate Heights (H(eff)); 2.6.4 Precautions When Using Theoretical Plates; 2.7 Utilization of Theoretical Efficiency (UTE%); 2.8 Separation Factor (α); 2.9 Resolution (R); 2.10 Trennzahl (TZ); 2.11 Column Capacity; 3 Capillary GC Columns: Tubing; 3.1 Fused Silica Capillary Columns; 3.2 Fused Silica Tubing; 3.3 Outer Coating; 3.4 Other Tubing Materials; 3.5 Polyimide Fused Silica Tubing Bending Stress; 4 Capillary GC Columns: Stationary Phases |
4.1 Stationary Phases4.2 Types of Stationary Phases; 4.2.1 Polysiloxanes or Silicones; 4.2.2 Arylene-Modified Polysiloxanes; 4.2.3 Polyethylene Glycols; 4.2.4 Porous Layer Stationary Phases; 4.3 Characteristics of Stationary Phases; 4.3.1 Bonded and Cross-linked Stationary Phases; 4.3.2 Stationary Phase Polarity; 4.3.3 Stationary Phase Selectivity; 4.4 Stationary Phase Interactions; 4.4.1 Dispersion Interaction; 4.4.2 Dipole Interaction; 4.4.3 Hydrogen Bonding Interaction; 4.4.4 When There are Multiple Interactions; 4.5 Stationary Phase Equivalencies; 4.6 Column Temperature Limits |
4.7 Column Bleed4.7.1 What is Column Bleed?; 4.7.2 Measuring Column Bleed; 4.7.3 Sensitivity Considerations; 4.7.4 Detector Considerations; 4.7.5 Minimizing Column Bleed; 4.8 Selecting Stationary Phases; 5 Capillary GC Columns: Dimensions; 5.1 Introduction; 5.2 Column Length; 5.2.1 Column Length and Efficiency/Resolution; 5.2.2 Column Length and Retention; 5.2.3 Column Length and Pressure; 5.2.4 Column Length and Bleed; 5.2.5 Column Length and Cost; 5.2.6 Selecting Column Length; 5.3 Column Diameter; 5.3.1 Column Diameter and Efficiency/Resolution; 5.3.2 Column Diameter and Retention |
5.3.3 Column Diameter and Pressure |
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Sommario/riassunto |
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This fourth edition of the classic guide for every user of gas chromatographic instrumentation is now updated to include such new topics as fast GC using narrow, short columns, electronic pressure control, and basic aspects of quantitative gas chromatography. The author shares his many years of experience in technical support for gas chromatography users, addressing the most common problems, questions and misconceptions in capillary gas chromatography. He structures and presents the material in a concise and practical manner, suitable even for the most inexperienced user without any detail |
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5. |
Record Nr. |
UNINA9910494152703321 |
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Autore |
Plato |
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Titolo |
Dialoghi. Eutifrone, Apologia di Socrate, Critone, Fedone, Assioco, Jone, Menone, Alcibiade, Convito, Parmenide, Timeo, Fedro / Platone ; nella versione di Francesco Acri ; a cura di Carlo Carena ; con saggio introduttivo di Piero Treves |
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Pubbl/distr/stampa |
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Descrizione fisica |
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XLVI, 594 p. : ill. ; 22 cm |
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Collana |
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Locazione |
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Collocazione |
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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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