Today, thermoplastic polyurethane materials are widely used in many different
applications. There are many types of thermoplastic polyurethanes which offers
different mechanical and chemical properties according to application area. In
addition to the existing properties, thermoplastic polyurethane materials mixed with
various additives to obtain specific, targeted thermoplastic polyurethane materials in
order to impart different properties to the material for application.
In this study, materials of the sealing elements are approached which is one of the
most important parts of the hyd ...Daha fazlası
As the technology develops, the development in vehicle safety becomes an area,
which takes the attraction of the researchers who are working in automotive industry.
Although systems like air bag system, lane departure warning system (LDWS) and
tire pressure monitoring system (TPMS) improve the safety of the vehicle, main
studies, in which advanced technology is used mostly focus on the brake system
including anti-lock braking system (ABS), traction control system (TCS), electronic
stability control (ESC), advanced emergency braking system (AEBS), adaptive
cruise control (ACC). Thus, det ...Daha fazlası
Medical imaging provides images of structures of the body that is not visible to
human eye. It is a basic need that determines the irregularities, abnormalities, parts
with different densities, spaces and foreign objects that is not supposed to be in the
body. It has major importance for fast and correct diagnose. Imaging is frequently
used for periodic scans for early diagnostic and follow up scans of treated patients.
No matter how important it is, accessibility of the imaging devices especially digital
imaging systems that provides real time images is extremely limited. There are very ...Daha fazlası
The use of internet and social media has increasing with the developing new
technologies and large number of people have actively using of the internet. At the
same time the development of mobile technologies and the widespread usage of the
mobile devices that can be shown as the reason for that. In this way, social media has
become a virtual environment in which people interact with each other.
Some of social media platforms such as Twitter have become very popular and most
of people share some information about themselves on these platforms. They also
share their ideas, thoughts, live ...Daha fazlası
Laminate composites can be used quite naturally in automotive, marine, aviation and
other engineering branches. Determination of buckling load capacity under in-plane composite
loads of composite plates is very important for the design of composite structures. In this thesis,
Differential Evolution (DE) and Simulated Annealing (SA) are utilized for optimal stacking
sequence of a laminated composite plate, which is simply supported on four edges and is
subjected to biaxial in-plane compressive loads. The optimization problem parameters are
defined as
(i) Objective function: critical buck ...Daha fazlası
Garment and textile production industry is one of the main sectors of our country.
This sector is a major driving force in our developing economy. According to 2014
data, Turkey is the third country on textile export among the European countries.
Besides, Turkey is the world's sixth largest garment exporter. With such a huge
production power, in Turkey’s textile sector, waste and/or residual textile materials
are composed depends on the large scale production, as in most of the other
production sectors. Such waste materials in textile industry are the left materials from
production stag ...Daha fazlası
In this study, clay based brick with micro pores was developed for thermal insulation
in the building materials. Turkey produces about 70% of the world hazelnut
production. The aim of this thesis is to reduce the thermal conductivity coefficient by
adding organic waste (hazelnut shell) into clay mixture to form porosity during firing
of clay bricks. Moreover, it is to maintain the similar mechanical properties by
adding inorganic waste (red mud) into clay mixture. The development of a highly
porous bricks with applicable mechanical strength will contribute to save energy in
the building ...Daha fazlası
Humankind have an interest to obtain marine meteorological data for decades, therefore, constant and mobile meteorological stations have been used for the correct measurements. These meteorological data include wind speed and direction, sea surface and air temperature and cloud cover. Ship-mounted anemometers have been used for meteorological observations, obtaining the wind speed data and climate change analysis. Wind data are especially gathered and reported by Voluntary Observing Ships (VOS). World Meteorological Organization (WMO) created the VOS program to ensure reporting of the wind dat ...Daha fazlası
PEDOT:PSS is with its acidic property solves the indium atoms from ITO and indium atoms diffuses in active layer in an organic solar cell. This event causes an decreasing in solar cell efficiency. In the same strategy, SAM molecules can be used as hole injection layer. On the other hand MoO3 can be used as anode buffer layer. In this thesis it is wanted to make SAM molecules have to not absorb visible range of solar spectrum for the efficient harvesting of solar energy by donor molecule. Otherwise the HOMO level of SAM molecule have to be between work function of ITO and HOMO level of donor mo ...Daha fazlası
The compounds bonded with functional groups in textile materials carry the economical support material property. The complex and/or organic compounds with the desired properties can be immobilized into the textile materials by using the reactivity of hydroxyl groups of cellulose and the NH2 groups in wool. Most of commercially purchased silver salts show a rapid release of silver in water because of their ionic structure. For this reason, they exhibit high antibacterial activity but the short-term. N-heterocyclic carbene (NHC) complexes have the long-term antibacterial effects by releasing the ...Daha fazlası
Organic light emitting diodes (OLEDs) is a multi-disciplinary research area. Due to the possibility of being produced in different designs and low costs, studies on the research and development of energy efficient structures have increased. These expectations have increased so much that research on new types of molecules and device designs is increasing with the expectation that OLEDs will be more efficient than all available light sources and that almost 100% of the energy used can be converted to light. Transition metal complexes, especially Iridium(III) complexes, which make them phosphores ...Daha fazlası
In recent years, laminated composites are fairly utilized in marine, automotive, aerospace, military and other engineering applications because of their high specific modulus (ratio between the young modulus and the density) and high specific strength (ratio between strength and density). In addition to these features, fiber reinforced composites have inherent tailorability such as fiber orientation and stacking sequence and provide great possibilities to designers against isotropic materials. Determination of the fundamental frequency performance of laminated composite plate is crucial for th ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.