Development of an ultrasonic NDE&T tool for yield detection in steel structures

Nondestructive Evaluation and Testing (NDE&T) is a commonly used and rapidly growing field that offers successful solutions for health assessment of structures. NDE&T methods have gained increasing attention in the last few decades especially with the contribution of the advancements in computer and instrumentation technologies. The applications of numerous NDE&T methods in civil engineering mostly focus on material characterization and defect detection. Techniques for nondestructively identifying the stress state in materials, on the other hand, mostly rely on the Theory of Acoustoelasticity. However, the sensitivity and the accuracy of acoustoelasticity are affected by several factors such as the microstructure of the material, temperature conditions, and the type, propagation and polarization directions of the signals used. This dissertation presents the results of an experimental study that investigates the changes in the characteristics of ultrasonic signals due to the applied stresses. Using a specially built testing system, ultrasonic signals were acquired from four different groups of steel specimens subjected to uniaxial tension below and above the yield stress of the material. The experimental database was first analyzed in terms of the acoustoelastic theory. Then, well known Digital Signal Processing (DSP) methods were used to calculate a total of seven time and frequency domain characteristics of the first three echoes of the acquired signals. The investigated time domain parameters were the peak positive amplitudes and the signal energies of the echoes, while the peak amplitude of the Fast Fourier and Chirp-Z Transforms, peak and peak-to-peak amplitudes and the root mean square of the Wavelet coefficients were used for the spectral analyses. Even though the acoustoelastic effects can be very small for certain measurement cases and they can be influenced by several other factors, clear distinctions between prior to and post yielding were observed for all investigated time and frequency domain parameters. The results were further analyzed with statistical methods and Receiver Operating Characteristics (ROC) curves in order to investigate the potential of the presented study for being used as a nondestructive testing tool for yield detection in steel structures

Investigation of Appearance Anxiety and the Gender Role in Women's Sports Except for Social Gender Norms

The Bem Sex-Role Inventory (BSRI), conducted by Hart et al. (2008) and adapted to Turkish by Dogan as Social Appearance Anxiety Scale (SAAS) (Dogan, 2010) was used in our study. In the analysis of the data, t-test and ANOVA test were used. As a result; There was a significant difference between female athletes' hormone use variable and appearance anxiety and gender role (p <0.05). It was determined that female athletes using hormone had appearance anxiety. A significant difference was found between maternal educational status and appearance anxiety and gender role. A significant difference was found between the paternal education status variable and the masculine gender role. A significant negative correlation was found between the age variable and appearance anxiety of female athletes. There was a positive relationship between appearance anxiety and masculine gender role. When the gender role values increase the values of appearance anxiety increase. It is recommended that special contact with women athletes who go beyond the social gender norms should be established according to expert opinions and all actors such as sports managers, trainer, sportsman, referee, physical education teacher etc. should be informed. In order to increase the proportion of women engaged in sports in the society, to support the girls who are new to the sports and not to create false opinions about the sportswomen, it is recommended to put forward the role models suitable for the female athlete profile

The Relationship Between Self-Efficacy and Perfectionist Self-Presentation Among Adolescents

In this study, it was examined whether the adolescents had a correlation with self-efficacy and perfectionist self-presentation levels. It is also examined whether the self-efficacy and perfectionist self-presentation levels of adolescents as a sub-goal are predicted by gender. The study was conducted with 512 students studying in the secondary school in Istanbul. The Personal Information Form developed by the participant researcher, the General Self-efficacy Scale, and the Perceived Self-Presentation Scale for Children and Adolescents adapted by Akın and Akın (2012) were applied. As a result of the correlation analysis, r value was found 0.114 and it was found that the adolescents had a weak positive relationship between self-efficacy and perfectionist self presentation levels (p0.05)

A Description of Growth performAnces of norDuz KiDs AnD milK YielD of norDuz GoAt

Abstract BINGOL, M., I. DASKIRAN and A. YILMAZ, 2014. A description of growth performances of Norduz kids and milk yield of Norduz goat. Bulg. J. Agric. Sci., In this research, growth performance of Norduz kids and milk yield of Norduz goats, a native gene resource in Turkey, were defined. The animals studied were brought from natural habitats to the animal research farm of Agricultural Faculty, Yuzuncu Yil University. Descriptive statistics for average birth, weaning, 30 th day, 60 th day, 90 th day, 120 th day, 150 th day and 180 th day weights of Norduz kids were found to be 2.98±0.07 , 13.37± 0. 44 , 6.70±0.20, 10.88±0.34, 14.44±0.44, 17.92±0.48, 21.15±0.55 , and 23.09±0.65 kg respectively. Least squares means of single kids and twin kids of Norduz were found to be 3.12±0.06 and 2.57±0.07 kg respectively. Least squares means of single male, single female, twin male and twin female kids of Norduz were found to be 3.23±0.08, 3.01±0.09, 2.81±0.09 and 2.33±0.10 kg respectively. Least squares means of lactation length and lactation milk yield were 226.4±7.23 day and 347.2 ± 40.06 kg respectively. Descriptive statistics of the growth of all kids revealed that in the time interval from birth to day 90 of age , birth to day 180 of age , birth to weaning (84 th day ) and weaning to day 180 of age daily weight gain were 0.193± 0.005 , 0.145±0.004 , 0.129±0.005 and 0.323± 0.043 kg , respectively

Serum cytokines levels of patients with juvenile rheumatoid arthritis

WOS: 000167172300283

A birth cohort study in the southeast part of Turkey evaluating wheezing phenotypes

World Allergy and Asthma Congress of the European-Academy-of-Allergy-and-Clinical-Immunology and World-Allergy-Organization -- JUN 22-26, 2013 -- Milan, ITALYWOS: 000325142905111…European Acad Allergy & Clin Immunol, World Allergy Or

Effects of vacuum packaging on the quality of frozen cooked doner kebab

Doner kebab is a traditional Turkish dish, recognized worldwide. It is an important fast-food meal sold by its local name in many countries. Dner kebab is consumed as a fresh dish and should be served immediately after cooking. Raw dner kebab can be stored by freezing, but there is not enough knowledge about the storage of cooked dner kebab. This study was conducted to investigate the effect of vacuum packaging on the meat quality of frozen cooked dner kebab. Packaged dner kebabs were stored at -18 +/- 1 degrees C for up to 12 months and examined monthly for microbiological (total aerobe mesophilic bacteria and Pseudomonas spp.), physicochemical (pH, moisture, fat, TBARS, and instrumental color L-star, a(star), b(star), and Delta E-star), and sensorial characteristics during the storage period. As a result, the quality and shelf-life of vacuum-packaged and frozen cooked dner kebabs were preserved throughout the storage period of 12 months. Microbial growth in dner meat was delayed due to the lack of O-2 in the package, which prevented the increase of lipid oxidation and improved the consumer acceptance for up to 9 months. However, loss of color and leakage of fat during long storage may adversely affect consumer preferences

The Utility of Next-Generation Sequencing for Primary Immunodeficiency Disorders: Experience from a Clinical Diagnostic Laboratory

Introduction. Primary immune deficiency disorders (PIDs) are a group of diseases with profound defects in immune cells. The traditional diagnostics have evolved from clinical evaluation, flow cytometry, western blotting, and Sanger sequencing to focusing on small groups of genes. However, this is not sufficient to confirm the suspicion of certain PIDs. Our innovative approach to diagnostics outlines the algorithm for PIDs and the clinical utility of immunophenotyping with a custom-designed multigene panel. Materials and Methods. We have designed a diagnostic algorithm based on flow cytometry studies to classify the patients; then the selected multigene panel was sequenced. In silico analysis for mutations was carried out using SIFT, Polyphen-2, and MutationTaster. Results and Discussion. The causative mutation was identified in 46% of PIDs. Based on these results, this new algorithm including immune phenotyping and NGS for PIDs was suggested for the clinical use. Conclusions. This study provides a thorough validation of diagnostic algorithm and indicates that still the traditional methods can be used to collect significant information related to design of most current diagnostics. The benefits of such testing are for diagnosis and prevention including the prenatal and preimplantation diagnosis, prognosis, treatment, and research