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In the industry, proper packaging and transportation of the products is at least as important as its production. Therefore, knowing the effects of vibration-induced forces on the product, which is the most effective force on the products in road transport, plays an important role in product and packaging design. For this purpose, this study has been carried out to develop a stationary test equipment concept that can be positioned in enterprises, which will enable the effects of the forces arising from road vibrations to be observed on the product, contrary to previous studies for driver and passenger comfort. In order to generate vibrations in the z-axis (parallel to gravity) direction, a drum system is preferred. In addition, the mathematically obtained functions were verified with CAE methods. [ABSTRACT FROM AUTHOR]

The visual quantification of the internal structures of heterogenous geomaterials enables the researchers a new perspective for the evaluation of the mechanical behaviors. Several methods are available for the non-destructive visualization of the internal structures. However, these methods are mostly expensive and inaccessible for many researchers. On the other hand, although destructive, another method to achieve the internal structures is the cutting and slicing method. In this method, it is not possible to make sufficient number of samplings for a detailed three-dimensional visualization. A better methodology superior to slicing is needed to make detailed evaluations based on internal structures. In this respect, a cost-effective methodology for detailed three-dimensional visualization of a selected geomaterial was proposed in this study by using Böhme abrasion test apparatus and MATLAB technical programming language. The constituent structures of the geomaterial are segmented and visualized separately. All visual data and MATLAB codes were made available for the interested researchers. [ABSTRACT FROM AUTHOR]

Objective: This study investigated whether one of the two viability tests is superior to the other in cases with asthenozoospermia (reduced sperm motility) in which the rate of immotile spermatozoa exceeded 50%. Materials and Methods: A total of 21 male patients who visited the IVF (in vitro fertilization) unit of the Department of Obstetrics and Gynecology of Dokuz Eylül University Medical Faculty were included in the study. Semen samples were subjected to both macroscopic and microscopic examinations. Makler counting chamber was used for the sperm motility and concentration analyses. All semen samples were subjected to eosin viability test and HOS (hypo-osmolar swelling) test. The result of the eosin test was accepted as normal in the case of presence of 75% or more unstainable spermatozoa in a semen sample. The result of the HOS test was accepted as normal if swelling behavior were observed in more than 60% of the spermatozoa tails in a semen sample. Results: Both tests yielded normal results in 10 cases, while the test results were found to be abnormal in 4 of the cases. In 7 cases, the HOS test yielded abnormal results, while the results of the eosin test were found to be normal. The binomial (sign test) statistical evaluation revealed that the two tests have no superiority over one another (p>0.05). Discussion: The fact that the HOS test as a viability test yielded very similar results when compared to the eosin test demonstrates the significance of the HOS test in the sense that it is economic. [ABSTRACT FROM AUTHOR]