The aim of the research is to determine whether the subjective well-being of individuals who are working in the banking sector differ according to some demographic variables (working bank type, sex, age, marital status, working time) in the workplace. The research is a field investigation which is used survey technique. Data which is obtained from public and private sector banking employees in Burdur province were analyzed with a statistical program which is appropriate to aim. In the research, frequency analyses, normal distribution test, reliability analysis related to scales were used as well as independent sampling t-test which is for comparison of quantitative continuous data between two independent groups in order to identify whether employees’ subjective well-being positions differ or not, according to some demographic variables. As a result of analyses, it was not found significant discrepancy between subjective well-being positions and demographic factors like type of bank, sexuality, marital status and working time whereas significance difference was found between age factor and subjective well-being.

Today, the works that improve ergonomics and human comfort in the furniture sector are consistently increasing. In addition to this, improving the current situation of the mechanism systems, which are used in the widely produced seating and bed groups, is gaining momentum every day. The design of the mechanisms that provide the desired function is considered within the kinematic synthesis of the mechanisms. The kinematic synthesis of mechanisms is examined in three main categories as function, trajectory and motion synthesis. It is expected that while following the desired trajectory the configuration of the mechanical systems, throughout their movement as well as their area-volume usage will be optimum. Thanks to the mechanisms that provide these requirements, quality of the machine, tools, etc. will increase. In this study, in order to improve the opening and closing systems used in the furniture sector, a mechanism system has been designed and virtual prototypes have been realized in order to ensure optimum use of area and volume during the movement of these parts.

Clustering is one of the most useful tasks in data mining process for discovering groups and identifying interesting distributions and patterns in the underlying data. Cluster analysis seeks to partition given data set into groups based on specified features so that the data points within a group are more similar to each other than the points in different groups. Clustering can be performed in hard or fuzzy mode. One of the important conditions in order to reach accurate results in clustering analysis is to determine the initial parameters. In many studies, researchers do not have prior information about the number of clusters. Clustering algorithms in general need the number of clusters as a prior, which is mostly hard for domain expert to estimate. In this work, in order to overcome this problem, cluster validity indices in literature were reviewed and these indices were used in genetic data set. The result was simply analyzed and according to the analysis, validity indices do not always discover the optimal number of clusters.

This study pertains to the numerical investigation of the influence of V-nozzle turbulators on thermal performance in a circular tube under uniform heat flux condition. The convergingdiverging nozzles as a venturi structure were located in the test tube in order to generate turbulance/reverseflow. The computations were carried out by consideration of various pitch ratios, PR = 2, 4, and 6 for Reynolds numbers between 5000 and 32000, using air as a working fluid. The variation of Nusselt number (Nu) and friction factor (f) versus Reynolds number (Re) were introduced for the obtained numerical results. The plain tube results were compared with the works available in literature for confirmation of the used numerical method. The rates of increase in Nusselt number over the smooth tube were presented as 159- 218 %, 144-201 % and 132-185 % in this study for PR=2, 4 and 6, respectively. In addition, heat transfer coefficient ratio values for V-nozzle turbulators with PR=2, 4 and 6 were around 1.77, 1.61, and 1.50, respectively. Consequently, the results demonstrated that the usage of Vnozzles at smaller pitch ratio yielded an increase in heat transfer rate and pressure loss.

Mammography is a widespread imaging technique to early detect breast cancer. It can detect micro scale calcium deposits (microcalcification) known as early signs of breast cancer. The detection of microcalcifications on mammograms, computer-aided diagnosis (CAD) systems is commonly used. The first step of CAD system is cleaning noises on mammography images. In order to clean or decrease noise on images, several filters are used. The purpose of this study is denoising mammogram images that include microcalcification with different filters and comparing of filter results. For this, firstly 50 mammogram images are obtained from Digital Database for Screening Mammography (DDSM). Microcalcification located areas which stated in their data file on mammograms are cropped at 512x512 pixels. Each image matrices are filtered by median and moving average filter in spatial domain as well as high pass and low pass filter in frequency domain. The filtered images are compared by mean square error (MSE) and peak signal-noise ratio (PSNR) after frequency domain filters contrast adjustment. As a result the optimal filter will be determined for cleaning mammograms without an effect on single or clustered microcalcification.

Public institutions are responsible for ensuring competition, equal treatment, and efficient use of resources in public investments while using resources. Public institutions and organizations select their suppliers for any goods, service, and construction works through tender (other than the exceptions in the law), and choose those suppliers according to economical and financial qualifications, and also professional and technical qualifications. The most important criterion among the qualification criteria requested in tenders is the work experience document, and work experience documents are divided into four including work completion, work status, work inspection, and work management documents. Work inspection and work management documents are prepared for architects or engineers working within the scope of the work. Work experience document is obligatory in all construction work tenders, and principles and procedures with regard to work experience document are regulated in Public Procurement Law No 4734 and sub-regulations.

In this study, the effect of Short-time Mean and Variance Normalization (STMVN), Shorttime Cepstral Mean and Scale Normalization (STMSN), Min-Max Normalization, Z-Score Normalization and Standard Deviation Normalization techniques on the classification performance was investigated in determining speakers’ gender. In the study, voice records which belongs to 192 male and 192 female speakers from TIMIT data set were used as data set. Features were extracted from Mel Frequency Cepstral Coefficients (MFCC) technique by using voice records and extracted features’ dimension was reduced to Principal Component Analysis (PCA), then normalized with different techniques. Support Vector Machine (SVM) was used as classifier. As a result of study, it was observed that, the highest accuracy in speakers’ gender estimation is obtained as 98.18% from features which were normalized with Standard Deviation Normalization technique and other normalization techniques were reduced accuracy.