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ENSTİTÜLERİzmir Katip Çelebi Üniversitesi Kurum Koleksiyonu
Erişime Açık

Investigation of concrete barriers with recycled rubber, steel slag and roof tile

Kurar, Ali

The purpose of aggregating rubber is to increase concrete’s flexibility, elasticity, and capacity to absorb energy. In some application of concrete, it is desired that concrete should have low unit weight, high toughness and impact resistance. Although concrete is the most commonly used construction material, it does not always fulfill these requirements. In order to improve elastic properties of concrete and recycle the waste materials, new applications have been realized recently. One of these applications is the utilization of discarded tires in order to use together with aggregate. ...Daha fazlası

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Group effect in axially loaded chemical anchors embedded in low strength concrete

Arslan, Tolga

The use of chemical anchors for the connection of existing structural elements with the new elements during strengthening of existing structures is quite a preferred method. Since in our country, chemical anchors are being widely used for repair and strengthening works, there should be a standard of design and application on this topic. Up to now, research done on the topic of chemical anchors, are mostly carried out on concrete blocks of compressive strength 20 MPa and higher. Since parameters such as distance from the edges, embedment depth and group effect were mostly ignored, the re ...Daha fazlası

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Expert system design by using artificial intelligence techniques for the diagnosis of liver disorders

Mülayim, Naciye

Nowadays, Expert System (ES)s are used widely in many areas to solve real world problems. Artificial Intelligence (AI) techniques are used to obtain timely and accurately decision about solution of daily problems in ESs designing because AI can mimic behaviours and thought system of people. Especially in medical area, there are many researches and applications using ESs based on various AI techniques to obtain diagnosis for any diseases. The liver is a vital internal organ for a human body and it has many functions, which are associated with the other organs. Although the liver can renew itse ...Daha fazlası

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Developing a new uterine manipulator ( Transvaginal uterus amputation device ) for total laparoscopic hysterectomies in gynecological surgeries = Jinekolojik operasyonlarda total laparoskopik histerektomi operasyonları için yeni bir uterus manipulatörü ( Tarnsvajinal uterus ampütasyon cihazı ) geliştirilmesi

Dikici, Serkan

DEVELOPING A NEW UTERINE MANIPULATOR (TRANSVAGINAL UTERUS AMPUTATION DEVICE) FOR TOTAL LAPAROSCOPIC HYSTERECTOMIES IN GYNECOLOGICAL SURGERIES SUMMARY Hysterectomy, that is removal of uterus, is one of the most common major operations in gynecologic surgeries. Laparoscopy technique is preferred in hysterectomy because of its advantages such as lower intra-operative blood loss, decreased surrounding tissue/organ damage, less operating time, lower postoperative infection and frequency of fever, shorter duration of hospitalization and post-operative returning time to normal activity. Firstly u ...Daha fazlası

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Fuzzy logic modelling of sediment transport in annulus

Müftüoğlu, Tevfik Denizhan

The understanding of sediment transport with fluid in pipes is one of the important issues in hydraulics engineering. If the fluid velocity is lower than a critical value, a stationary cuttings bed develops, which may cause excessive head loss. In this study, a Fuzzy Logic (FL) model is developed to estimate stationary cuttings bed thickness inside the annulus. Experimental data is collected from literature in order to train proposed models. Results showed that the cuttings bed thickness could be estimated using the developed model with a reasonable accuracy when compared with the experimental ...Daha fazlası

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Using alcohol as a carrier producing polyanionic cellulose (PAC) polymer from solid textile waste

Karakuş, Hüseyin

Cellulose is the most abundant organic polymer on earth. It is naturally regenerated by forests and cotton plantations with a speed of 10 billion metric tons per year regularly. Not only its natural reproduction makes it ecologically beneficial but also its biological degradability makes cellulose an ‘eco-friendly material’. Applications of cellulose is limited due to its insolubility in water. Contrarily, its water-soluble derivatives, especially cellulose ethers, are found in nearly all the products we are using in our daily life. Although cellulose is the main raw material for producing ce ...Daha fazlası

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