Fusarium:Molecular Diversity and Intrinsic Drug Resistance

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Energy absorption capability of thin-walled aluminium tubes under crash loading

This paper investigates the interaction of design factors such as tube thickness, tube length, and tube cross-sectional aspect ratio, along with friction and impacting mass on crashworthiness parameters such as specific energy absorption contact time, peak force and crush distance. The impact velocity is assumed to be constant at 15 m/s. The focus is on rectangular aluminium tubes and the analysis was carried out by using a validated finite element model. The analysis shows that the factors are not independent of each other and there is some degree of interaction between them. It was found that the trigger mechanism is a very important design factor to be included in the design of thin-walled tubes for energy absorption applications. The effect of the friction coefficient was found to be insignificant and finally, based on the interactions, it can be concluded that the most effective design would be a larger tube with small wall thickness, and a larger aspect ratio to avoid buckling.Universiti Tenaga Nasional, Malaysi

Improvements of programing methods for finding reference lines on X-ray images

The paper gives an overview of the algorithms developed to obtain reference lines and angles on X-ray images. These geometrical characteristics are used in the medical analysis of human joints. We propose the algorithm’s modifications based on the analysis of numerous X-ray images.These modifications allowed obtaining a great increase in calculation speed and the improvement of final results quality given by the corresponding application. They also lead to a significant reduction of manual tuning of the program, arising only in the rare cases when the properties of given images differ significantly from the mean ones.The authors are grateful to the experts from Iraq – Al-Abayechi Sinan Adnan (Medicine Iraqi Board of Orthopedic Surgery) and Bassam Faleh Hassan (Medicine Arabic Board of Diagnostic Radiology) who attracted the attention to this investigation. They provided us with X-ray materials, gave important advice connected with the implementation and discussed the obtained results

Novel approach of simplification detected contours on X-ray medical images

This paper gives description of a method for simplifying the number of points representing detected contours of the bones on digital X-ray images. Such simplification permits simplify way for correction the location of these points in the cases, if the analyzed image has poor quality, and to reduces the time of analysis it to get the reference lines and angles for diagnosis purposes of the area under investigation

Organizational and technological solutions for controlling concrete structures projects in the dry hot weather in Iraq

Iraq has suffered from a long period of neglect in projects due to the circumstances it has experienced, and there is a great need to construct infrastructure and development projects. The weather in Iraq is characterized by an increasing rise in temperatures, with summer temperatures reaching 50°C and relative humidity around 24%. The summer season extends for 5 months, and this requires procedures and precautions in projects that include concrete structures in hot climates that represented by high temperatures and low humidity. Such weather would affect the properties of fresh and hardened concrete, as the rapid evaporation of water from the mix causes different damages to the concrete, the appearance of shrinkage cracks, as well as a lack of workability. It also affects the strength of the concrete and its durability at later ages. Also, there are other problems in such projects related to poor quality and increased costs and time required to implement construction projects. Therefore, problems related to hot climates were studied through literature review in this regard. A questionnaire was also conducted to show the real problems that these projects suffer from, and problems were found that go beyond providing the above precautions that must be available in hot weather. Rather, it requires an increase in allocations, and there are problems related to the need for planning, as well as the necessary administrative, technical and legislative measures to improve performance