نتایج جستجو برای: digital x

تعداد نتایج: 916179  

Journal: :Japanese Journal of Radiological Technology 1992

Journal: :Research, Society and Development 2022

This study aimed at the assessment and monitoring of digital image quality parameters resulting from use portable X-ray equipment in clinical examinations. A multicentric was conducted for images produced using NOMAD® with DIGORA® ™ Optime UV computed radiography (CR) system. The evaluated terms high- low-contrast spatial resolution, contrast noise ratio (CNR), signal-to-noise (SNR). samples co...

2002
BENGT HEMDAL INGVAR ANDERSSON ANNE THILANDER GERT BENGTSSON WOLFRAM LEITZ NILS BJURSTAM OLOF JARLMAN Bengt Hemdal Ingvar Andersson Anne Thilander Gert Bengtsson Wolfram Leitz Nils Bjurstam Olof Jarlman Sören Mattsson

SUMMARY: Purpose: The recent technical developments in digital as well as screen-film X-ray mammography have been reviewed in order to evaluate their clinical potential and to analyse possible lines for future development. Material and methods: The scientific literature has been reviewed, conferences covered and contacts with colleagues developed. Companies in the field have been inquired and i...

2017
Xin Zhang Lei Wang Xiaoyi Jiang Changming Zhu

Digital Earth is an integrated approach building scientific infrastructure. The ocean data is a typical big data, which can be seen from the data volume, velocity, variety, and value perspectives. The Digital Earth systems provide a threedimensional visualization and integration platform for ocean big data, which include ocean management data, in situ observation data, remote sensing observatio...

2006
Stuart Haber Pandurang Kamat

We present a content integrity service for long-lived digital documents, especially for objects stored in long-term digital archives. The goal of the service is to demonstrate that information in the archive is authentic and has not been unintentionally or maliciously altered, even after its bit representation in the archive has undergone one or more transformations. We describe our design for ...

Journal: :Japanese Journal of Radiological Technology 1995

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