Technological Educational Institute of Western Macedonia

About: Technological Educational Institute of Western Macedonia is a based out in . It is known for research contribution in the topics: Catalysis & Symplectic geometry. The organization has 291 authors who have published 522 publications receiving 7682 citations. The organization is also known as: TEI of West Macedonia & TEI of Western Macedonia.

Personal Characteristics and Organizational Culture of Greek Banking Employees

Abstract: The purpose of the study is to examine the Greek bank employees’ attitudes about the present organizational culture of the bank where they work and about their desired organizational cultures after 5 years. The sample consisted of 252 (51.7 %) males and 235 (48.3 %) females of different bank organizations. The results of the present study suggest that bank employees think present organizational culture as controlling while at the same time they would prefer more clan and adaptive types of culture in the organization. Also, ANOVA has shown that in terms of the attitudes about the present organizational culture only the variable of years of general experience as bank employees affect their attitudes, with employees with 1–10 years of experience grading the present culture as more hierarchical and less adaptive and participative. As far as desired organizational cultures are concerned men and women state different preferences, administrators would like it to be more hierarchical and new employees would like it more to promote participation and adaptation to the external environment and less orientated to the market.

Locational performance analysis of distributed photovoltaic systems

Abstract: Big Data impose new research challenges in power system industry. Volume and variety of Big Data are crucial parameters for the validation of data processing techniques. Due to the rapid augmentation of Photovoltaics (PVs) installations in many countries the volume of the collected on-site data continually increases. The scope of the present paper is to provide an analysis on an amount of PV power data for the purpose of decreasing the need for continuous measurements and therefore, lowering the volume of the exploitable Big Data in PV sites. Data collected from 10 PV installations in Norther Greece are used as a case study. The correlation between each installation is calculated exhibiting high values in geographically nearby areas. Thus, metering and storing of data can be reduced to sporadic and seasonal measurements and in selected installations. Profiling can be used as well in order to reduce the needs for measurements, by taking as a benchmark the most appropriate installation out of geographically close ones. The profiles can be updated once a month by taking into account temperature variation, PV overall apparatus efficiency and other factors.

Exploring Insurance Fraud and Tourists’ Misbehaviour

Abstract: Fraud affects every type of insurance, whether it is life or non-life insurance. According to Insurance Europe publications, insurance fraud includes providing untruthful or incomplete information in applications for insurance compensation, submitting a claim for a loss based on misleading or untruthful circumstances, including exaggerating a genuine claim; and otherwise being misleading or untruthful in dealings with an insurer, with the intention of gaining a benefit under the insurance contract. Insurance fraud may be committed by the policyholder or by a third party claiming against an insurance policy. It can range from opportunistic claims, through claims for phantom passengers and fictitious injuries in road accidents, to highly organized crime rings. Fraudulent claims and the cost of investigating suspected frauds lead to higher premiums for honest customers. Investigating fraud also has an impact on insurers’ ability to deal with genuine claims quickly. Some resorts in Greece, such as Faliraki and Kavos, have developed a reputation as been places where tourists, mostly British, are often raped from drunken tourists or even from locals. Someone could claim that those are destinations where alcohol and violence can have very negative effects. However, there is also the case of insurance fraud. This research is going to take a deep look not only on the existing theory on insurance fraud, but also on cases which have been on media. Indeed, there is a series of cases where tourists have made claims for been rapped? However, the investigation made from the insurance firms has concluded that no rape has occurred; in most cases the tourists just aimed at the refund given from the insurance company for the case of a rape. Our literature review and secondary research, suggests that there are indeed many cases of this kind of fraud. However, during the past years the insurance firms are on alert and able to reveal many cases of insurance fraud; which has in turn also reduced the cases of persons asking claims from the insurance firms for rapes. Actually, the dramatic fall on the claims from tourists, who claim that they have been raped, is an indication that the increased level of inspections made from the insurance companies have been effective against fraudulent insurance claims.

Economic Bases of International Mechanisms on Climate Change

Abstract: Neither the UN Framework Convention on Climate Change nor the Kyoto Protocol nor other international agreements aiming at the establishment of legal and economic — and also sustainable — world development mechanisms seeking to achieve a harmony between economic growth and preservation of the environment have led to any reduction in annual increases of anthropogenic greenhouse gas emissions. This is due, to a considerable extent, to the initially non-complete principles of evaluation regarding the different responsibilities of countries in connection with atmosphere pollution. The aforementioned principles are based on total emissions volumes. However, what might be seen as more justified in any estimation of permissible pollution levels is, within potential international trading of volume quotas for the rights to carbon dioxide emissions, an account of the intensity of pollution per square kilometer of surface area and the absorption potential of forests and other green plantations present in every country.

Prediction of surface roughness in turning using orthogonal matrix experiment and neural networks

Abstract: A neural network modeling approach is presented for the prediction of surface texture parameters during turning of a copper alloy (GC-CuSn12). Test specimens in the form of near-to-net-shape bars and a titanium nitride coated cemented carbide (T30) cutting tool were used. The independent variables considered were the cutting speed, feed rate, cutting depth and tool nose radius. The corresponding surface texture parameters that have been studied are the Ra, Rq, and Rt. A feed forward back propagation neural network was developed using experimental data which were conducted on a CNC lathe according to the principles of Taguchi design of experiments method. It was found that NN approach can be applied in an easy way on designed experiments and predictions can be achieved, fast and quite accurate. The developed NN is constrained by the experimental region in which the designed experiment is conducted. Thus, it is very important to select parameters’ levels as well as the limits of the experimental region and the structure of the orthogonal experiment. This methodology could be easily applied to different materials and initial conditions for optimization of other manufacturing processes.