1.

Record Nr.

UNINA9910449844003321

Autore

Adamy David

Titolo

EW 102 : a second course in electronic warfare / / David L. Adamy

Pubbl/distr/stampa

Boston : , : Artech House, , ©2004

[Piscataqay, New Jersey] : , : IEEE Xplore, , [2003]

ISBN

1-5231-1715-X

1-58053-687-5

Descrizione fisica

1 online resource (290 p.)

Collana

Artech House radar library

Disciplina

623.043

Soggetti

Electronics in military engineering

Information warfare

Electronic books.

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 (p. 259-262) and index.

Nota di contenuto

Table of contents; Preface xv; 1 Introduction 1; 1.1 Generalities About EW 3; 1.2 Information Warfare 5; 1.3 How to Understand Electronic Warfare 6; 2 Threats 9; 2.1 Some Definitions 9; 2.2 Frequency Ranges 13; 2.3 Threat Guidance Approaches 15; 2.4 Scan Characteristics of Threat Radars 17; 2.5 Modulation Characteristics of Threat Radars 22; 2.6 Communication Signal Threats 26; 3 Radar Characteristics 33; 3.1 The Radar Function 33; 3.2 Radar Range Equation 36; 3.3 Detection Range Versus Detectability Range 42; 3.4 Radar Modulation 48; 3.5 Pulse Modulation 48.

3.6 CW and Pulse Doppler Radars 543.7 Moving Target Indicator Radars 58; 3.8 Synthetic Aperture Radars 63; 3.9 Low Probability of Intercept Radars 67; 4 Infrared and Electro-Optical Considerations in Electronic Warfare 77; 4.1 The Electromagnetic Spectrum 77; 4.2 IR Guided Missiles 82; 4.3 IR Line Scanners 87; 4.4 Infrared Imagery 90; 4.5 Night-Vision Devices 94; 4.6 Laser Target Designation 98; 4.7 Infrared Countermeasures 101; 5 EW.

Sommario/riassunto

Annotation Serving as a continuation of the bestselling book EW 101: A First Course in Electronic Warfare, this new volume is a second installment of popular tutorials featured in the Journal of Electronic Defense. Without delving into complex mathematics, this book gives



engineers, defense contractors, managers, and government procurers a basic working knowledge of the technologies deployed in today's electronic warfare (EW) systems. Organized into chapters with new introductory and supplementary material from the author, this unique book includes tutorials on radar characteristics, infrared and electro-optical systems, signal jamming, spectrum spreading, satellite communications, and emitter location systems. A thorough and challenging problem set for each class of EW technology covered in the book, complete with solutions, helps readers to evaluate EW systems and their applications.

2.

Record Nr.

UNINA9910142478603321

Autore

Whitehead Anne

Titolo

Meta-analysis of controlled clinical trials [[electronic resource] /] / Anne Whitehead

Pubbl/distr/stampa

Chichester ; ; Hoboken, NJ, : John Wiley & Sons, c2002

ISBN

1-280-27001-2

9786610270019

0-470-36526-9

0-470-85419-7

0-470-85420-0

Descrizione fisica

1 online resource (353 p.)

Collana

Statistics in practice

Disciplina

610/.7/27

615.19

Soggetti

Clinical trials - Statistical methods

Meta-analysis

Electronic books.

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 (p. 321-328) and index.

Nota di contenuto

Meta-Analysis of Controlled Clinical Trials; Statistics in Practice; Contents; Preface; 1 Introduction; 1.1 The role of meta-analysis; 1.2 Retrospective and prospective meta-analyses; 1.3 Fixed effects versus random effects; 1.4 Individual patient data versus summary statistics;



1.5 Multicentre trials and meta-analysis; 1.6 The structure of this book; 2 Protocol development; 2.1 Introduction; 2.2 Background; 2.3 Objectives; 2.4 Outcome measures and baseline information; 2.5 Sources of data; 2.6 Study selection; 2.7 Data extraction; 2.8 Statistical analysis; 2.8.1 Analysis population

2.8.2 Missing data at the subject level 2.8.3 Analysis of individual trials; 2.8.4 Meta-analysis model; 2.8.5 Estimation and hypothesis testing; 2.8.6 Testing for heterogeneity; 2.8.7 Exploration of heterogeneity; 2.9 Sensitivity analyses; 2.10 Presentation of results; 3 Estimating the treatment difference in an individual trial; 3.1 Introduction; 3.2 Binary data; 3.2.1 Example: Stroke in hypertensive patients; 3.2.2 Measurement of treatment difference; 3.3 Survival data; 3.3.1 Example: Mortality following myocardial infarction; 3.3.2 Measurement of treatment difference

3.4 Interval-censored survival data 3.4.1 Example: Ulcer recurrence; 3.4.2 Measurement of treatment difference; 3.5 Ordinal data; 3.5.1 Example: Global impression of change in Alzheimer's disease; 3.5.2 Measurement of treatment difference; 3.6 Normally distributed data; 3.6.1 Example: Recovery time after anaesthesia; 3.6.2 Measurement of treatment difference; 4 Combining estimates of a treatment difference across trials; 4.1 Introduction; 4.2 A general fixed effects parametric approach; 4.2.1 A fixed effects meta-analysis model

4.2.2 Estimation and hypothesis testing of the treatment difference 4.2.3 Testing for heterogeneity across studies; 4.2.4 Obtaining the statistics via weighted least-squares regression; 4.2.5 Example: Stroke in hypertensive patients; 4.2.6 Example: Mortality following myocardial infarction; 4.2.7 Example: Ulcer recurrence; 4.2.8 Example: Global impression of change in Alzheimer's disease; 4.2.9 Example: Recovery time after anaesthesia; 4.3 A general random effects parametric approach; 4.3.1 A random effects meta-analysis model

4.3.2 Estimation and hypothesis testing of the treatment difference 4.3.3 Estimation of t(2) using the method of moments; 4.3.4 Obtaining the statistics via weighted least-squares regression; 4.3.5 Example: Mortality following myocardial infarction; 4.3.6 Example: Global impression of change in Alzheimer's disease; 4.3.7 Example: Recovery time after anaesthesia; 4.3.8 A likelihood approach to the estimation of t(2); 4.3.9 Allowing for the estimation of t(2); 5 Meta-analysis using individual patient data; 5.1 Introduction; 5.2 Fixed effects models for normally distributed data

5.2.1 A fixed effects meta-analysis model

Sommario/riassunto

Over the last twenty years there has been a dramatic upsurge in the application of meta-analysis to medical research. This has mainly been due to greater emphasis on evidence-based medicine and the need for reliable summaries of the vast and expanding volume of clinical research. At the same time there have been great strides in the development and refinement of the associated statistical methodology. This book describes the planning, conduct and reporting of a meta-analysis as applied to a series of randomized controlled clinical trials.* The various approaches are presented within a gene



3.

Record Nr.

UNINA9910154912203321

Autore

Felix Rebecca <1984->

Titolo

Mini wearables / / by Rebecca Felix

Pubbl/distr/stampa

Minneapolis : , : Lerner Publications, , [2017]

©2017

ISBN

1-5124-3843-X

1-5124-2813-2

Descrizione fisica

1 online resource (32 pages) : illustrations

Collana

Mini makers

Disciplina

745.594/2

Soggetti

Miniature craft

Costume jewelry

Dress accessories

Handicraft

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Before you get started! -- Wee wearables -- Itty-bitty beast clips -- Baby bow tie -- Petite pom-pom bracelet -- Neat little nest necklace -- Tiny tile bracelet -- Mini flower bun band -- Tiny top hat -- Bitty book keychain.

Sommario/riassunto

"Readers can express their style in a big way through accessorizing with tiny wearables in this miniature fashion how-to guide."--