For the daily QA of the energy scanning delivery, quick and easy range verification system is required. In this work, we have developed range verification system using scintillator and CCD (charge-coupled device) camera. From the comparison of the several methods, edge detection method is best for range detection. Accuracy of range detection for the system is within the 0.2 mm. Reproducibility ...

Conventions: [DT] Dependency table; WU task colours (check, examine, other), EAL4 highlighted in case of multiple components in family. Abbreviations: beh. (behaviour), enf. (enforcing), ext. (extended), IF (interface), impl (implementation), interf. (interfering), mod. (module), pen (penetration), pot. (potential), req (requirement), s/e (supporting/enforcing), subs. (subsystem), sup. (support...

Background: Due to their difficult working conditions, physicians are prone to injuries and musculoskeletal disorders affecting different parts of the body. This study aimed to investigate the prevalence of musculoskeletal disorders among physicians at Mortaz hospital in Yazd, Iran (2020) Materials and Methods: The present study is a cross-sectional descriptive study conducted on 50 physicians...

This paper describes an adaptive-chosen-ciphertext attack on the Cipher Feedback (CFB) mode of encryption as used in OpenPGP. In most circumstances it will allow an attacker to determine 16 bits of any block of plaintext with about 2 oracle queries for the initial setup work and 2 oracle queries for each block. Standard CFB mode encryption does not appear to be affected by this attack. It appli...

We describe a simple method for determining anchoring energies from the measured optical response of liquid crystal cells. The method is quick and easy to use and can therefore be used to check a range of possible treatments, or for process control in an industrial environment .

the musculoskeletal disorders cover a large percent of occupational diseases; therefore, in order to protect workers from such disorders, there is a need to evaluate workers positions at work in different industries. in a major furniture manufacture located in tehran, 500 workers were examined. these workers were divided into fourteen working groups, including production lines of water-heater, ...