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Bulunan: 511 Adet 0.001 sn
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Erişime Açık

Fuzzy Logic Control System with Helicopter Takeoff and Landing

ALLAHVERDİ, Novruz | HACIMURTAZAOĞLU, Murat

In this study, fuzzy expert system is designed for the provision of helicopter takeoffs and landings by fuzzy logic. For this purpose, a model helicopter and the test platform have been created that helicopter movements can be tested. The vertical motion control on the axis defined by the fuzzy logic control system is provided for the helicopter with the generated test platform with four degrees of freedom. Fuzzy logic controller was designed with Arduino 2560 control board and Visual Studio 2010 C Sharp program for controlling helicopter model and analysis of motion control was made. Real-tim ...Daha fazlası

Konferans Bildirisi 2016 6 Görüntülenme
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Gabion Tipi Dayanma Duvarlarının Harmoni Arama Algoritması İle Optimizasyonu

URAY, Esra | ÇARBAŞ, Serdar | ERHAN, İbrahimHakkı | TAN, Özcan

Bu çalışmada, gabion dayanma duvarın optimum tasarımı harmoni arama algoritması kullanılarak yapılmıştır. Harmoni arama algoritması müzik icrasında en iyi harmoniyi bulma prensibine dayanan sezgisel optimizasyon yöntemidir. Gabion dayanma duvarı, standart boyutlarda üretilen gabion sepetlerle inşa edilir. Duvar tasarımında gabion sepet boyutlarının standart yerine değişken olarak alınması ile stabilite koşullarını sağlayan daha ekonomik dayanma duvarı elde etmek mümkündür. Bu çalışmanın matematik modelinde, dayanma duvar temel genişliği, sepet genişliği azaltma mesafesi ve gabion sıra sayısı t ...Daha fazlası

Konferans Bildirisi 2016 Zemin Mekaniği ve Geoteknik Mühendisliği 16. Ulusal Kongresi 7 Görüntülenme
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The Function Analysis and its Application to Determination of Fuzzy Subsets for Model Helicopter Fuzzy Control

ALLAHVERDİ, Novruz | HACIMURTAZAOĞLU, Murat

In this study, an analysis of the function that determines the sub-clusters of the fuzzy controller for model helicopter control is performed. For this purpose, a model helicopter and a test platform were established in which the results of the function analysis can be seen and the application results will be examined. Arduino control card is used for model control. Analysis results are analyzed on computer using c # program. The computer connection with the model is carried out via the Usb port. Input parameters for control are obtained from the sensors on the model. The output values are cal ...Daha fazlası

Konferans Bildirisi 2017 5 Görüntülenme
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Determination of Optimum Pinch Point Temperature Difference Depending on Heat Source Temperature and Organic Fluid with Genetic Algorithm

ATA, Sadık | KAHRAMAN, Ali | ŞAHİN, Remzi

In this study, the effect of evaporator pinch point temperature difference (∆TPP,e) value in Organic Rankine Cycle (ORC) on system performance was determined. Under different applications of ORC, optimum ∆TPP,e value has been determined in ORC systems designed with different heat source temperatures. By changing the ∆TPP,e value, the heat input provided to the system, the mass flow of organic fluid, the evaporation pressure and the enthalpy drop in the turbine are affected. In thermodynamic optimization, the objective function is determined as turbine power maximization. Genetic algorithm opti ...Daha fazlası

Makale 2022 Academic Platform Journal of Engineering and Smart Systems (APJESS) 7 Görüntülenme
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Measurement of D-meson production versus multiplicity in p–Pb collisions at √sNN = 5.02 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

Abstract: The measurement of prompt D-meson production as a function of multiplic- ity in p–Pb collisions at √sNN = 5.02TeV with the ALICE detector at the LHC is re- ported. D0, D+ and D∗+ mesons are reconstructed via their hadronic decay channels in the centre-of-mass rapidity range −0.96 < ycms < 0.04 and transverse momentum interval 1 < pT < 24 GeV/c. The multiplicity dependence of D-meson production is examined by either comparing yields in p–Pb collisions in different event classes, selected based on the multiplicity of produced particles or zero-degree energy, with those in pp collisions ...Daha fazlası

Diğer 2016 7 Görüntülenme
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Water level change of lakes and sinkholes in Central Turkey under anthropogenic effects

DEMİR, Vahdettin | ÜLKE KESKİN, Aslı

Determining water level changes in lakes is significant for sustainable water supply planning, flood control, water resource management, and economic development with ecosystem sustainability. Trend analysis is a commonly used tool for detecting changes in hydrologic time series of quantities such as lake level, precipitation and temperature. Trend analysis of meteorological variables is very important for assessing the long-term changes in lake levels. This study examines long-term changes in the lakes in the Central Anatolia region of Turkey. Kızören and Timraş sinkhole lakes and Lakes Tuz a ...Daha fazlası

Makale 2020 Theoretical and Applied Climatology 3 Görüntülenme
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Bifilms And Hot Tearing Of Al-Si Alloys

ÇETİN, Remzi | ULUDAĞ, Muhammet | DIŞPINAR, Derya

Hot tearing is one of the most interesting defects that can be found during casting of aluminium alloys. The definition of this defects has some uncertainties such as “it does not always appear under apparently identical conditions” or “the defect is highly specific to certain alloys”. There are several works in the literature on the modelling and analytical approaches. However, the experimental findings have not been satisfactory. In this work, A356, A380 and A413 alloys were cast in two different moulds to investigate the hot tearing tendency with regard to the melt quality. It was found tha ...Daha fazlası

Konferans Bildirisi 2016 Shape Cutlng: 6th lntenudlmud Symposiam, Springer Link 6 Görüntülenme
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Farklı Dolgu Duvarların Betonarme Bir Yapının Sismik Yük Davranışına Etkisinin İncelenmesi

SOYDOĞAN, Hasan Furkan | SANCIOĞLU, Sadrettin | CAN, Hüsnü

Dolgu duvarlar, betonarme çerçevelerin arasına mimari projeye uygun olarak yerleştirilen elemanlardır. Taşıyıcı özelliği olmadığından, yapılarda zati ağırlık olarak kesit hesaplarında dikkat edilse de yatay yüklere karşı etkisi ihmal edilmektedir. Bu çalışmada, x- yönünde 7, y- yönünde 3 açıklığa sahip 10 katlı betonarme bir yapıda dolgu malzemesi olarak kullanılan boşluklu fabrika tuğlasının ve gazbeton bloğun, yapının sismik yük davranışına etkisi irdelenmiştir. Çalışmada, 9 farklı dolgu duvar düzeni modellenmiştir. Yapıdaki kolon ve kirişlerin kesitleri yürürlükte olan Betonarme Yapıların T ...Daha fazlası

Konferans Bildirisi 2021 1st International Conference on Applied Engineering and Natural Sciences 4 Görüntülenme
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Drought and Flood Analyses of Samsun City

DEMİR, Vahdettin | BİLGE, Hümeyra | SEVİMLİ, Mehmet Faik

The aim of this study is to analyze the flood and drought based on precipitation and streamflow data gathered from Samsun City, the most developed province of the Black Sea Region. Flood and drought analysis are important for the water resources management and important for anticipating the natural disasters that may occur in Samsun. The study has been carried out in two parts. In the first part, streamflow data, covering the period from 1964 to 2015, provided by the Current Observation Station, which is the most powerful parameter causing flood, was investigated for flood analysis by Mann-Ken ...Daha fazlası

Konferans Bildirisi 2017 International Conference on Civil and Environmental Engineering 5 Görüntülenme
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Measuring K0S K± interactions using pp collisions at √s = 7 TeV

KARASU UYSAL, Ayben | ALICE Collaboration

We present the first measurements of femtoscopic correlations between the K0 and K± particles in pp √S collisions at s = 7 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for K0SK− are found to be equal within the experimental uncertainties to those for K0K+. Results of the present study are compared with those S√ from identical-kaon femtoscopic studies also performed with pp collisions at s = 7 TeV by ALICE a ...Daha fazlası

Makale 2018 6 Görüntülenme
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Static analysis of laminated composite beams based on higher-order shear deformation theory by using mixed-type finite element method

ÖZÜTOK, Atilla | MADENCİ, Emrah

In this paper, mixed finite element (MFEM) equations which are based on a functional are obtained by using the Gâteaux differential (GD) for laminated composite beams. Higher-order shear deformation theory (HOBT) including non-linear distribution of shear stress through thickness of laminated beam is presented. Differential field equations of composite beams are derived from virtual displacement principle. These equations were trans- formed into the operator form and using the mathematical advantages of the proposed the variational method, a functional with geometric and dynamic boundary condi ...Daha fazlası

Makale 2017 International Journal of Mechanical Sciences 3 Görüntülenme
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Numerical modeling of Samsun Mert River floods

ÜLKE, Aslı | BEDEN, Neslihan | DEMİR, Vahdettin | MENEK, Necati

Floods are considered one of the most important natural disasters after earthquakes in Turkey. As a result, there is currently great public interest in this issue and it is necessary to intensify research activities in order to understand natural disasters better and to reinforce risk management. The effect of climate change on meteorological events causes an increase in extreme events such as excessive precipitation in some regions. An extreme natural event becomes a disaster when it has a large impact on human settlements and activities. Study area Samsun city is placed in the north of Turke ...Daha fazlası

Makale 2017 European Water 4 Görüntülenme
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