Konya Journal of Engineering Sciences最新文献_第8页

HAVACILIKTAKİ VİDEO VERİ YOLU STANDARDININ AKILLI TAŞITLAR İÇİN KULLANIM OLASILIĞI ÜZERİNE BİR İNCELEME

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1205746

Aslıhan Pamuk, Ufuk Sakarya

{"title":"HAVACILIKTAKİ VİDEO VERİ YOLU STANDARDININ AKILLI TAŞITLAR İÇİN KULLANIM OLASILIĞI ÜZERİNE BİR İNCELEME","authors":"Aslıhan Pamuk, Ufuk Sakarya","doi":"10.36306/konjes.1205746","DOIUrl":"https://doi.org/10.36306/konjes.1205746","url":null,"abstract":"Gerçek zamanlı sistemlerdeki en önemli sorunlardan birisi algılayıcılardan toplanan verinin yeterli hızda komuta ve kontrol sistemine taşınamamasıdır. Bu işlem de veri yolları vasıtası ile olmaktadır. Bu makalede sayısal haberleşme içerisinde havacılıkta kullanılan video veri yolu standardının kara ulaşımındaki akıllı taşıtlar için kullanım olasılığı üzerine bir incelemede bulunulmaktadır. Bu inceleme yapılırken sadece teknik anlamda bir incelemede bulunulmaktadır. Bu makaledeki ana motivasyon; kara ulaşımında akıllı taşıt sistemleri geliştiren kişilerin, havacılık alanındaki gelişmelerden haberdar edilerek farkındalık oluşturulmasıdır. Bir ulaşım alanındaki ulaşım araçlarının yetenekleri yeri geldiğinde diğer bir ulaşım alanındaki araçlara esin kaynağı olabilmektedir. Havacılık alanında çoklu algılayıcıların kullanımı ve bunların gerçek zamanda iletilmesi üzerine çok uzun zamandır çalışmalar yer almaktadır. Özellikle hız konusu ortaya konduğunda hava araçlarının hız gereksinimlerinden doğan iletişimin de hızlı olması gereklilikleri bu alanda birçok çalışmanın yapılmasına neden olmuştur. Bu makalede, havacılıkta kullanılan video veri yolu standardı teknik anlamda genel hatları ile tanıtıldıktan sonra otomotivde olası kullanımı üzerine yorumlar sunulmaktadır. Gelecekte akıllı taşıtlar için sensör ve kameraların artması ile birlikte veri iletim hızının isterlerinin daha da artması durumu oluşabilir. Otonom araçlarda aynı havacılıktaki gibi sensörlerden ve kameralardan gelen bilginin hem hızlı hem de güvenilir bir şekilde iletilmesi çok önemlidir. Havacılıktaki video veri yolunun sahip olduğu özelliklerin otomotiv sektörünün ihtiyaçları özelinde incelenmesinin geleceğin akıllı taşıtlarının veri yolları tasarımında önemli olabileceği öngörülmektedir.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79268232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Investigation on the Effects of Temperature Change on Aggregate Characteristics in Perlite Expansion - A New Approach 温度变化对珍珠岩膨胀中团聚体特性影响的研究——一种新方法

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1088530

L. Gündüz, Şevket Onur Kalkan

{"title":"An Investigation on the Effects of Temperature Change on Aggregate Characteristics in Perlite Expansion - A New Approach","authors":"L. Gündüz, Şevket Onur Kalkan","doi":"10.36306/konjes.1088530","DOIUrl":"https://doi.org/10.36306/konjes.1088530","url":null,"abstract":"In this study, the changes in the expanded aggregate forms formed after the expansion process of raw perlite at different temperature values in an equivalent time were analyzed and the factors affecting the structural characteristics of the expanded perlite were examined. Especially after expansion process, a new approach has been examined to represent strength, fragility, and crumbling phenomenon of the perlite aggregate. In the study, raw perlite in 125-250 µm, 250-500 µm and 500-750 µm size ranges was used and the expansion temperatures were 200, 360, 410, 480, 530, 560, 590, 610, 640, 660, 690, 730, 760, 830, 900 and 1040 ˚C, respectively. According to the results, it was determined that as expansion temperature of the raw perlite increased, bulk density of the expanded perlite decreased, and grain size increased. It was observed that as the maximum grain size increased, the collapse (deformation) values increased when interacted with water due to the difference in the changing matrix structure of expanded perlite. Compressive strength and workability decreased with increase in the collapse rate of the expanded perlite aggregate in cementitious mortars. Although workability and strength of the mortars produced with perlite aggregate expanded at high temperature decreased with the effect of collapse, it was determined that the thermal performance of the mortar produced with this type of aggregate improved.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90847386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

BİYOKÜTLEDEN GÖZENEKLİ KARBONLU MALZEME ÜRETİMİ: BİYOKÜTLE TİPİ VE SICAKLIĞIN FİZİKOKİMYASAL ÖZELLİKLERE ETKİSİ

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1205637

Aynur Aşma, Elif Yaman, Sinan Temel

{"title":"BİYOKÜTLEDEN GÖZENEKLİ KARBONLU MALZEME ÜRETİMİ: BİYOKÜTLE TİPİ VE SICAKLIĞIN FİZİKOKİMYASAL ÖZELLİKLERE ETKİSİ","authors":"Aynur Aşma, Elif Yaman, Sinan Temel","doi":"10.36306/konjes.1205637","DOIUrl":"https://doi.org/10.36306/konjes.1205637","url":null,"abstract":"Bu çalışmada, yenilenebilir bir kaynak olan 2 farklı biyokütlenin (karaçam ağacı talaşı ve meşe ağacı talaşı) detaylı karakterizasyonu, bu biyokütlelerden farklı sıcaklıklarda (400, 500 ve 700 °C) karbonizasyon yöntemi ile karbonlu malzeme üretilmesi ve üretilen bu malzemelerin karakterizasyonu gerçekleştirilmiştir. Çalışmanın amacı, biyokütle tipinin ve karbonizasyon sıcaklığının elde edilen karbonlu malzemenin fizikokimyasal özellikleri üzerine etkisinin belirlenmesidir. Bu sebeple biyokütle örnekleri seçilirken, birinin sert odun (hard wood) diğerinin yumuşak odun (soft wood) olmasına dikkat edilmiştir. Biyokütle ve elde edilen örneklerin ön analizleri gerçekleştirilmiştir. Elementel analiz, Fourier dönüşümlü kızılötesi spektrometresi (FT-IR) ve Taramalı elektron mikroskobu (SEM) teknikleri kullanılarak karakterizasyon çalışmaları tamamlanmıştır. Elde edilen sonuçlara göre, karbonizasyon sonucu elde edilen karbonlu malzemenin fizikokimyasal özelliklerinin hammadde tipi ve reaksiyon koşullarına bağlı olduğu belirlenmiştir.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89341680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COMPARATIVE PERFORMANCE ANALYSIS OF A FEED-FORWARD NEURAL NETWORK-BASED MPPT FOR RAPIDLY CHANGING CLIMATIC CONDITIONS 快速变化气候条件下基于前馈神经网络的MPPT性能比较分析

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1179030

Fuad Alhaj Omar

{"title":"COMPARATIVE PERFORMANCE ANALYSIS OF A FEED-FORWARD NEURAL NETWORK-BASED MPPT FOR RAPIDLY CHANGING CLIMATIC CONDITIONS","authors":"Fuad Alhaj Omar","doi":"10.36306/konjes.1179030","DOIUrl":"https://doi.org/10.36306/konjes.1179030","url":null,"abstract":"Rapid and abrupt changes in climatic conditions present a challenge to classical MPPT techniques as they drift from the MPP, resulting in loss of power. This paper presents a new MPPT technique based on a feed-forward artificial neural network (FFANN) and a direct control technique. In the proposed approach, FFAAN estimates the optimum value of the PV output voltage V_MPP, while the direct control technique achieves an optimal adjustment of the duty cycle making the operating point at MPP. To evaluate the performance of the proposed technique, the accurate electrical model of the system parts was built and simulated in MATLAB/Simulink environment. The simulation results are collected under rapidly changing climatic conditions. Simulation results show that the proposed MPPT technique achieves higher performance in terms of tracking efficiency and convergence speed compared to both the IC-based MPPT and FL-based MPPT systems. The results show that the proposed technique accurately estimates V_MPP, achieving a tracking efficiency of 99.9%, while the tracking efficiency is 94% when using FL-based MPPT and 91.5% when using IC-based MPPT. This demonstrates that the proposed technique exhibits superior performance under rapidly changing climatic conditions and increases energy production efficiency compared to classical techniques.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77410478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ACCURACY ASSESSMENT TOWARD MERGING OF TERRESTRIAL LASER SCANNER POINT DATA AND UNMANNED AERIAL SYSTEM POINT DATA 地面激光扫描器点数据与无人机系统点数据融合的精度评估

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1150611

L. Karasaka, H. B. Makineci, Kasım Erdal

{"title":"ACCURACY ASSESSMENT TOWARD MERGING OF TERRESTRIAL LASER SCANNER POINT DATA AND UNMANNED AERIAL SYSTEM POINT DATA","authors":"L. Karasaka, H. B. Makineci, Kasım Erdal","doi":"10.36306/konjes.1150611","DOIUrl":"https://doi.org/10.36306/konjes.1150611","url":null,"abstract":"Terrestrial Laser Scanning (TLS) techniques are widely preferred for 3D models of small and large objects, buildings, and historical and cultural heritages. However, sometimes relying on a single method for 3D modelling an object/structure is insufficient to arrive at a solution or meet expectations. For example, Unmanned Aerial Systems (UAS) provide perspective for building roofs, while terrestrial laser scanners provide general information about building facades. In this research, several facades of a selected building could not be modelled using terrestrial laser scanning, and UAS was used to complete the missing data for 3D modelling. The transformation matrix, a linear function, is created to merge different data types. In the transformation matrix, the scale was found to be 1:1.012. The accuracy analysis of the produced 3D model was also made by comparing the spatial measurements taken from different building facades and the differences in the measurement values obtained from the 3D model and calculating statistically. According to the accuracy analysis results, the Root Mean Square Error (RMSE) value is approximately 3 cm. The results of the accuracy research, which are within the 95% confidence interval with the three-sigma rule, are approximately 2 cm as RMSE. As a result of the study, it was determined that the data obtained from UAV photogrammetry and the data obtained by the TLS technique could be combined, and the integrated 3D model obtained can be used more efficiently.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75060179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

PREDICTION OF CERVICAL DISC HERNIATION DISEASE UTILIZING TRAPEZIUS sEMG SIGNALS WITH MACHINE LEARNING TECHNIQUES BASED ON FREQUENCY DOMAIN FEATURE EXTRACTION 基于频域特征提取的机器学习技术，利用斜方肌表面肌电信号预测颈椎间盘突出症

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1185629

Burak Yilmaz, Güzin Özmen, H. Ekmekçi

{"title":"PREDICTION OF CERVICAL DISC HERNIATION DISEASE UTILIZING TRAPEZIUS sEMG SIGNALS WITH MACHINE LEARNING TECHNIQUES BASED ON FREQUENCY DOMAIN FEATURE EXTRACTION","authors":"Burak Yilmaz, Güzin Özmen, H. Ekmekçi","doi":"10.36306/konjes.1185629","DOIUrl":"https://doi.org/10.36306/konjes.1185629","url":null,"abstract":"Cervical disk herniation (CDH) is a disease that affects the quality of life of many people due to the neck pain it causes. The aim of this study was to develop an automatic prediction system to aid in diagnosis by evaluating the change in the surface electrical activity of the trapezius muscle in SDH disease in order to find an answer to the question: 'Can the surface electromyogram (sEMG) recorded from the trapezius muscle be an effective indicator for the diagnosis of SDH disease?'. To this end, a dataset will be created using preprocessing and feature extraction methods from sEMG signals from CDH patients and healthy individuals. In the first step, the Savitsky-Golay filter is used to denoise the sEMG signals and the dominant frequency signals between 20 and 150 Hz are included in the study using the Butterworth filter design. Twenty PSD-based features in the frequency domain were then obtained from the signals to which we applied the Burg method. Eleven of the most significant features based on the information gain, gain ratio, and Gini values are selected to be submitted to the classifiers. 80% of all new feature areas are used for classification and the rest for prediction. The best classification accuracy of 91.6% was obtained with the Tree classifier using 10-fold cross-validation for classification. In addition, neural networks and CN2 rule inducer provided 87.5% classification accuracy for prediction using 20% of the remaining data that the classifiers had not seen before. The experimental results demonstrate that the trapezius muscle has different surface electrical activity in CDH patients and healthy subjects and that the frequency domain characteristics of this activity are important for disease prediction.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73664439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ANFIS-BASED REAL-TIME POWER ESTIMATION FOR WIND TURBINES 基于anfiss的风电机组实时功率估计

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1200149

Göksel Gökkus

{"title":"ANFIS-BASED REAL-TIME POWER ESTIMATION FOR WIND TURBINES","authors":"Göksel Gökkus","doi":"10.36306/konjes.1200149","DOIUrl":"https://doi.org/10.36306/konjes.1200149","url":null,"abstract":"In this study, it is aimed to make real-time power estimation for the V44-600 model wind turbine of Vestas company. The scope of the study is aimed to perform ANFIS-based power estimation for the V44-600 VESTAS wind turbine, which is intensely used in the wind industry, by using the wind speed and air density data of the city of Nevşehir. For this purpose, an Adaptive Network Based Fuzzy Inference System (ANFIS) trained on V44-600 wind turbine data was used. For the training and testing steps of ANFIS, wind speed, air density, and output power of the wind turbine are used as input-output parameters. As a result of the simulations and training, the percent relative error value in the widest range where the prediction value deviates from the true value is 11.86%. This value was higher than expected due to the scarcity of the data used in the ANFIS training (144) and the repetitive values in the output power. Similarly, the lowest efficiency value is 89.4%. Despite all this, it has been observed that ANFIS gives good results if the data used in the testing process is within the scope of the data used in the training. Moreover, the developed model when supported with 32-bit hardware can make real-time power estimation for a real wind turbine. The main motivation for this study; is develop a model that can predict the output power for the Vestas V44-600 model based on wind speed and air density data. In addition, it is to produce the Fuzzy Interface System (FIS) file that enables the developed model to run on embedded systems.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77868808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION OF THE USE OF CALCIUM CARBONATE AS NANOPARTICLES IN NUCLEAR REACTORS 碳酸钙纳米颗粒在核反应堆中的应用研究

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1139083

S. Uzun, Yasin Genç, A. Acır

引用次数: 0

KOMŞU İZOLE SAÇILMA SAYISININ ALGORİTMASI

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1101410

Mehmet A. Tosun, Ersin Aslan, Emin Borandag

引用次数: 0

KÖPRÜ AYAK TİPİ VE VEREVLİĞİNİN SU YÜZÜ PROFİLLERİ ÜZERİNDEKİ ETKİSİNİN DENEYSEL VE SAYISAL OLARAK ARAŞTIRILMASI

Konya Journal of Engineering Sciences Pub Date : 2023-03-01 DOI: 10.36306/konjes.1171227

K. S. Erduran, Uğur Ünal, Ahmet Şakir Dokuz, Mustafa Çağrı Nas

{"title":"KÖPRÜ AYAK TİPİ VE VEREVLİĞİNİN SU YÜZÜ PROFİLLERİ ÜZERİNDEKİ ETKİSİNİN DENEYSEL VE SAYISAL OLARAK ARAŞTIRILMASI","authors":"K. S. Erduran, Uğur Ünal, Ahmet Şakir Dokuz, Mustafa Çağrı Nas","doi":"10.36306/konjes.1171227","DOIUrl":"https://doi.org/10.36306/konjes.1171227","url":null,"abstract":"Köprülerin yapısal güvenliği açısından oldukça önemli olan köprü ayaklarının tasarımının, hidrolik açıdan da analizi gerekmektedir. Köprü ayakları, akım alanını daraltarak köprü membaında kabarmalara ve beraberinde taşkınlara neden olabilmektedir. Dolayısıyla farklı akım koşullarında köprü ayaklarının etkisi altında oluşan su yüzü profillerinin ve kabarma miktarlarının deneysel ve sayısal çalışmalar ışığı altında en doğru şekilde belirlenmesi köprü hidrolik tasarımının önemli bir bölümünü oluşturmaktadır. Bu çalışmada, farklı enkesitlerdeki köprü ayaklarının ve verevlik açısının köprü etrafında oluşan su yüzü profili ve köprü membaındaki kabarma miktarı üzerindeki etkileri deneysel ve sayısal olarak araştırılmıştır. Deneysel çalışmalar Niğde Ömer Halisdemir Üniversitesi Mühendislik Fakültesi İnşaat Mühendisliği Bölümü Hidrolik Laboratuvarında bulunan ve boyutları 10x0.309x0.45 m olan deneysel kanal üzerinde yürütülmüştür. Yapılan deneysel çalışmalarda 4 farklı köprü ayağı tipi (kare, dairesel, kenarları yuvarlatılmış ve memba yüzü keskin kenarlı) ve 4 farklı verevlik açısı (00, 150, 300 ve 450) kullanılarak kanalda akım ölçümleri yapılmış ve ayrıca her bir deneye ait video kayıtları alınarak elde edilen görüntüler görüntü işleme tekniği yardımıyla sayısal verilere dönüştürülmüştür. Deneysel çalışmaların yanı sıra HEC-RAS yazılımı ve direk adım metodu kullanılarak sayısal modelleme çalışmaları da yapılmış, su yüzü profilleri ve kabarma miktarları karşılaştırma amaçlı elde edilmiştir. Elde olunan sayısal sonuçlar karşılaştırılmış, benzer problemlerde HEC-RAS yazılımın kullanılabilirliği ile görüntü işleme tekniğinin uygulanabilirliği ile ilgili çıkarımlara yer verilmiştir.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81259148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0