OBJECTIVE To compare the slot-scan digital radiography (SSDR) of the lower extremity region and the computed radiography (CR) method with respect to the image quality and radiation exposure. MATERIALS AND METHODS We enrolled 54 patients who underwent both the SSDR and CR of the lower extremities. The study evaluated and statistically compared the image quality of four features (outer cortex, ...

We analyze simple, one-dimensional models of thermal systems with long ducts in which there is a delay due to the time it takes the fluid to travel along the duct. A general solution of the dynamic problem of a single duct with time-dependent inlet and ambient temperatures is obtained, and several special cases are described in detail. Of particular interest is the periodic case in which the in...

In the sequel, we tackle a real-world problem: forming examination boards for the university-entrance exams at the autonomous region of Asturias (Spain). We formulate the problem, propose a heuristic GRASP-like method to solve it and show some experimental results to support our proposal.

In this paper combined Brayton–Rankine cycle was mathematically simulated. In the Matlab program package an adequate numerical procedure has been developed to determine the maximum thermal efficiency of the combined cycle limited by the temperature of exhaust gases at the entrance of the gas turbine and the temperature of the condensation of water vapour in the steam condenser. Furthermore, add...

We analyze heat transfer characteristics of steady electroosmotic flows with an arbitrary pressure gradient in two-dimensional straight microchannels considering the effects of Joule heating in electroosmotic pumping. Both the temperature distribution and local Nusselt number are mathematically derived in this study. The thermal analysis takes into consideration of the interaction among advecti...

Recently, high-resolution multislice CT images have been used in the diagnosis of hepatic cancer. In the conventional method of detecting hepatic cancer on the basis of three-dimensional images, it is difficult to detect cancers with a three-dimensional structure. This paper proposes a method of detection of liver cancer on the basis of three-dimensional hepatic blood vessel regions which are e...

Firearm-related injuries are a major problem worldwide, in forensic medicine practice. and unusual presentation of bullet trajectory can create surgical or medico-legal diagnostic problems. A 23-year-old man suffered two gunshot wounds, was taken to emergency department immediately after the incident. Physical examination revealed two entrance gunshot wounds on the left lumbar region under the ...