Journal of Naval Sciences and Engineering

18

Authors: H.Kemal ŞENYILMAZ, Gökhan CEYLAN, Veysel ALANKAYA, Alper KURULTAY

Light-weighted armor plates as being a discrete application of composite materials, are usually designed by finite elements programs such as ANSYSAUTODYN, and proven by real fire tests before procurement. In this study, effect of material model choose to the numerical results is presented. Considering the material data as an important function of the analysis, a standard material model is selected and AISI 4340 steel is used for all analyses. Besides the material deformation and crater dimensions on the impact area, heat as appearing of thermal energy and yield stress dissipation on the completed analyses, is presented to the readers.

24

Authors: Dr.Kerim GOZTEPE, Recep KILIC, Dr.Alper KAYAALP

With the increase of mobile devices and the implementation of the concept of “internet of things”, human beings began to live entirely in a cyberworld besides physical world. This unexpected expansion of cyberspace has caused a vulnerability to all kinds of cyber-attacks. Today, the number of attackers and correspondingly the number of attacks are increasing, but the attackers’ knowledge levels are diminishing. This inverse ratio in cyber threats force organizations and states to take more comprehensive security measures. Developed countries have begun to accept cyber space as a fifth operational domain after land, sea, air and space. The study reveals that designing cyber security agency for Turkey is a crucial issue in terms of cyber defense in depth for an effective homeland cyber security. In this paper, we suggest eight layered “defense in depth architecture” that is proposed “cyber security agency organization” for Turkey. We believe this structure provide more effective real-time information sharing between governmental organizations also.

26

Authors: Güzide Öncü E. PEKTAŞ

In the new century, the value and perception of the enterprises have changed due to the changes in consumers’ demands and needs. By virtue of this evolution, the enterprises have begun to attach importance to the value-satisfaction-royalty connection in the new contemporary merchandising concept. The retailers must promote their customers with this connection model and ensure creating satisfaction while meeting their needs. Regarding the marketing activities which enterprises follow in their changing retailing and store management, one of the most important factors that influence the customers’ buying behavior is the store atmosphere and pop advertising activities. In the literature section of this this study, store properties and pop advertising activities are analyzed; and in the application section, the impact of store atmosphere and pop advertising activities on buying behavior of consumers are analyzed with supermarket application in Istanbul.