1.

Record Nr.

UNINA9910554238403321

Autore

Christie-Miller Ian

Titolo

Revealing Watermarks : How to Enhance the Security of Hand-Made Paper Items and Reveal Hidden Data

Pubbl/distr/stampa

Boston, MA : , : Academic Studies Press, , 2021

©2021

ISBN

1-64469-626-6

1-64469-625-8

Descrizione fisica

1 online resource (90 pages)

Classificazione

AM 33100

Disciplina

676.28027

Soggetti

Handmade paper - Europe - History - 16th century

Image processing - Digital techniques

Paper - Analysis - Data processing

Watermarks - Europe - Identification

Technology & Engineering / Imaging Systems

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

Frontmatter -- Contents -- Acknowledgements -- Introduction -- First Part -- Second Part -- Third Part -- Fourth Part -- Fifth Part -- Downloads -- Bibliography -- Index

Sommario/riassunto

Digital imaging andprocessing are shown to open new methods of paper research. Early Balticprinted books are the examples in Revealing Watermarks, which alsodescribes how to enhance security, by creating and archiving a digital'fingerprint'. Thus thefts are deterred and stolen items can be uniquelyidentified for return.



2.

Record Nr.

UNINA9910696935703321

Autore

Salem J. A (Jonathan A.), <1960->

Titolo

Failure analysis of sapphire refractive secondary concentrators / / Jonathan A. Salem, George D. Quinn

Pubbl/distr/stampa

Cleveland, Ohio : , : National Aeronautics and Space Administration, Glenn Research Center, , [2009]

Descrizione fisica

1 online resource (38 pages) : illustrations

Collana

NASA TM- ; ; 2009-215802

Altri autori (Persone)

QuinnG. D (George D.)

Soggetti

Sapphire

Thermal stresses

Failure analysis

Twinning

Fractures (materials)

Concentrators

Tensile stress

Temperature gradients

Fractography

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from title screen (viewed on July 29, 2010).

"December 2009."

Nota di bibliografia

Includes bibliographical references (pages 32-33).