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Browsing Mühendislik Fakültesi Bildiri/Sunu Koleksiyonu by Issue Date

Now showing items 1-20 of 91

Numerical prediction of leakage flow and windage heating for various labyrinth seal geometries

Öztürk, Harun Kemal (BEGELL HOUSE, INC, 1999)

The labyrinth seals are one of the most important components of a gas turbine engine as a sealing element. In this paper, a computational study has been carried out for the various labyrinth seal geometries. One of the aim ...
Investigation of current pattern and dispersion of the organic pollutants in urban-reservoirs

Karahan, Halil; Baykan, N. Orhan (WITPress, 2000)

In this study, the current pattern and dispersion of the organic pollutants in the "Tahtali Dam" under construction is investigated. The Dam is located in the Aegean Region of Turkey, near to the City of Izmir, the third ...
Mathematical model aided investigation of hydrodynamic properties of Ulubat lake

Karahan, Halil (2001)

Ulubat is a fresh water lake formed in a tectonic subsidence site located at the east-west direction to the south of Marmara Sea. The length of the lake at the east-west direction is 23-24 km and its width is about 12 km. ...
Numerical modelling of shallow water using an iterative solution algorithm

Karahan, Halil (2001)

The knowledge of the current patterns and surface elevations of lakes and reservoirs is an essential need for a number of engineering problems such as water quality, flooding, sediment transport and coastal erosion. ...
An iterative method for the solution of dispersion equation in shallow water

Karahan, Halil (2001)

In order to keep the pollution levels below permissible limits and also to forecast the final concentrations to be reached, current patterns and dispersion characteristics are required for water quality problems in lakes ...
Tribological studies of DLC films contaning different amount of silicon coated by reactive ion plating

Özmen, Yılmaz; Tanaka, A; Sumiya, T (SPRINGER, 2001)

In order to synthesize DLC film on WC-Co alloy, C6H6 and (CH3)(6)Si2O mixture was used by employing ion-plating apparatus. The Si content in DLC film was varied arranging the mixture ratio of both gases. The film thickness ...
The impacts of sedimentation caused in Izmir Bay by Gediz River on circulation and water quality

Karahan, Halil (2002)

Izmir Bay is a natural water environment on the west coast of Turkey opening to the Aegean Sea. The largest settlement in the bay area is Izmir. The bay has an "L" type geometry and consists of three parts: the outer, ...
Cost effects of different calculation methods on water distribution

Koc, Abdullah Cem (SPRINGER, 2003)
Nerve Implants

Yıldız Varan, Nilüfer (Elsevier Ltd, 2005)

Synthetic materials have been used in the medical field for surgical grafts due to lack of insufficient organic graft prosthesis. In the first years of their development, properties of an ideal graft were defined. "An ideal ...
A new state space representation method for adaptive log domain systems

Arslanalp, Remzi.; Tola, Abdullah Tahsin. (2006)

In this paper, a new method for the state space representation of a system is proposed, which is based on the companion form technique. It is very important to have almost equal coefficients of state space equations since ...
By using darlington topology improvement of in-band gain for the log domain filters

Arslanalp, Remzi.; Tola, Abdullah T. (2006)

By using Darlington topology, an alternative circuit is proposed to overcome the in-band gain problem for the log domain circuits. This idea is applied to a third order elliptic filter synthesized in the log domain. ...
Asymmetric dual-mode microstrip filters with adjustable transmission zero

Görür, A.; Karpuz, Ceyhun.; Eryılmaz, Gökhan Murat. (2007)

A new type of dual-mode resonator that produces asymmetrical frequency responses is proposed. The effect of nonorthogonal input/output feed lines located along a straight line on filter response is investigated for the ...
Evaluation of product design concepts using grey-fuzzy information axiom

Akay, D.; Kulak, Osman. (2007)

Evaluation of product design concepts is an important and critical problem, considering incomplete and imprecise information in the early stages of product design process. In order to solve this problem, grey theory, fuzzy ...
High-order current-mode low-pass, high-pass and band-pass filter responses employing CCCIIs

Minaei, S.; Yüce, Erkan. (2007)

In this paper, a current-mode circuit for realizing high-order low-pass (LP) and high-pass (HP) filter responses is presented. The proposed circuit uses dual output second-generation current controlled conveyors (DO-CCCII) ...
Compact dual-band bandpass filters using dual-mode resonators

Görür, A.; Karpuz, Ceyhun. (2007)

To reduce the size of microstrip dual-band bandpass filters (DBBPFs) by keeping excellent performance, a novel DBBPF configuration is proposed. The novel DBBPFs include two dual-mode resonators based on square loop structure ...
Dual-mode dual-band microstrip filters

Karpuz, Ceyhun.; Görür, Adnan. (2009)

A compact dual-band microstrip bandpass filter is proposed using dual-mode resonators. Two microstrip loop resonators, one within the other, are employed to obtain dual-mode dual-band filter responses. Each loop resonator ...
Design of microstrip bandstop filter with adjustable wide passband using folded open-circuited stub resonators

Görür, A.; Karpuz, Ceyhun.; Güntürkün, E.; Urhan, Mehmet.; Görür, A.K. (2009)

This paper presents a new class of microstrip bandstop resonator filters. The folded open-circuited stub resonator located into microstrip loop structure is investigated using full-wave electromagnetic simulations. The ...
Controlling the experimental three-tank system via support vector machines

İplikçi, Serdar. (2009)

In this study, the previously proposed Support Vector Machines Based Generalized Predictive Control (SVM-Based GPC) method [1] has been applied in controlling the experimental three-tank system. The SVM regression algorithms ...
Bandstop Filter Using Slow-wave CPW Resonator with Defected Ground Structure

Gorur, A; Karpuz, Ceyhun; Akgun, O (ELECTROMAGNETICS ACAD, 2009)

A novel slow-wave CPW resonator with defected ground structures (DGSs) in rectangular spacing-like shapes is investigated. This structure has an extremely compact size. Simulations and experimental results have verified ...
Approximate analysis of load-dependent generally distributed queuing networks with low service time variability

Ekren, B.Y.; Heragu, Sunderesh S. (2010)

In this paper, we present an approximate method for solution of load-dependent, closed queuing networks having general service time distributions with low variability. The proposed technique is an extension of Marie's ...

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