Konya Journal of Engineering Sciences最新文献_第3页

ANALYSIS OF SPATIAL AND TEMPORAL VARIABILITY OF AEROSOL OPTICAL DEPTH OVER KARABUK USING MODIS 利用模型分析卡拉布克上空气溶胶光学深度的时空变异性

Konya Journal of Engineering Sciences Pub Date : 2023-09-24 DOI: 10.36306/konjes.1333625

Duygu Arikan, Ferruh Yildiz

{"title":"ANALYSIS OF SPATIAL AND TEMPORAL VARIABILITY OF AEROSOL OPTICAL DEPTH OVER KARABUK USING MODIS","authors":"Duygu Arikan, Ferruh Yildiz","doi":"10.36306/konjes.1333625","DOIUrl":"https://doi.org/10.36306/konjes.1333625","url":null,"abstract":"The concept of aerosol refers to the combination of microscopic solid or liquid particles present in the atmosphere along with a mixture of gases. These particles are suspended in the air at different sizes and are evaluated based on their ability to scatter or absorb light, which is quantified through a measurement known as aerosol optical depth. These particles' quantities are determined using specialized devices, commonly referred to as \"aerosol optical depth meters\" or \"optical thickness meters.\" Additionally, through remote sensing technology, aerosol optical depth can also be measured via satellites. In this study, aerosol optical depth has been examined temporally and spatially in the Karabük province for 2022. For this aim, data from National Air Quality Monitoring Stations (NAQMS) situated nationwide was employed, along with MODIS satellite images. Data from five stations in Karabük province, namely Kardemir1, Kardemir2, Tören Alanı, 75.yıl, and Safranbolu, were used for temporal analysis, while satellite imagery was used for spatial analysis. The relationship between aerosol optical depths derived from MODIS satellite data using green and blue band information and station data was investigated. As a result, a 99% positive correlation was found between the two bands obtained from the MODIS satellite, and a significant correlation was observed between ground-based particulate matter 2.5(PM2.5) and particulate matter 10 (PM10) data. Data from the Tören Alanı station, which had a higher amount of data (357 days) compared to other stations, was used to determine this correlation. It was found that there was an 86.35% positive correlation among particulate matters. A moderate correlation was also identified between ground-based data and aerosol optical depth obtained from satellite imagery.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139336760","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

DETERMINING THE OPTIMUM PARKING ANGLES FOR VARIOUS RECTANGULAR-SHAPED PARKING AREAS: A PARTICLE SWARM OPTIMIZATION-BASED MODEL 确定各种矩形停车区域的最佳停车角度：基于粒子群优化的模型

Konya Journal of Engineering Sciences Pub Date : 2023-09-21 DOI: 10.36306/konjes.1293799

Ziya Çakici, A. T. Şensoy

{"title":"DETERMINING THE OPTIMUM PARKING ANGLES FOR VARIOUS RECTANGULAR-SHAPED PARKING AREAS: A PARTICLE SWARM OPTIMIZATION-BASED MODEL","authors":"Ziya Çakici, A. T. Şensoy","doi":"10.36306/konjes.1293799","DOIUrl":"https://doi.org/10.36306/konjes.1293799","url":null,"abstract":"Reducing financial costs as much as possible through the effective and efficient use of parking areas is an important issue for sustainable urban planning. This can be achieved by optimizing the placement of angles of parking-lots. In this study, to determine the optimum parking angles for rectangular-shaped parking areas, a Particle Swarm Optimization-based model that aims to maximize the capacity of parking areas is developed. In the scope of the study, firstly, 324 parking area scenarios which have different dimensions from each other are created for testing the effectiveness of the model developed. Each scenario is separately analyzed by considering the optimization-based model and fixed-parking angles (0o, 30o, 45o, 60o and 90o) used in parking area planning. In the last step, parking area capacities obtained by applying different parking angles for each scenario and the total parking capacities for all scenarios are compared in detail. Results show that the capacities of parking areas can be increased up to approximately 50% with the model created. Besides, in contrast to existing literature, the findings of this study have proven that the optimum parking angle directly depends on the topology of the land. The model developed can be applied to all rectangular-shaped parking areas to achieve better urban planning.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139337992","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

A COMPARATIVE STUDY OF RELEASE KINETICS BEHAVIOR MODELS AND SHELF LIFE ASSESSMENT OF BACITRACIN ZINC-LOADED PLA COMPOSITES 杆菌肽锌负载 pla 复合材料释放动力学行为模型和保质期评估的比较研究

Konya Journal of Engineering Sciences Pub Date : 2023-09-13 DOI: 10.36306/konjes.1328688

A. Özarslan, Fatih Ciftci

{"title":"A COMPARATIVE STUDY OF RELEASE KINETICS BEHAVIOR MODELS AND SHELF LIFE ASSESSMENT OF BACITRACIN ZINC-LOADED PLA COMPOSITES","authors":"A. Özarslan, Fatih Ciftci","doi":"10.36306/konjes.1328688","DOIUrl":"https://doi.org/10.36306/konjes.1328688","url":null,"abstract":"Mathematical modeling aims to simplify the complex process of drug release and to gain knowledge about the release mechanisms specific to a given material system. Consequently, a mathematical model focuses primarily on one or two important factors. Drug release aims to maximize the bioactivity of both naturally derived and synthetically derived macromolecules, thus increasing their clinical applicability and improving the overall quality of life. This study focused on fabricating PLA composites with different weight percentages of Bacitracin Zinc (0.5, 1.0, and 2.0) and evaluating their potential as a drug delivery system. To understand the release mechanism of Bacitracin Zinc from the PLA composites, we developed a Franz diffusion kinetic model and a mathematical model for cumulative release kinetics. The Franz diffusion model was utilized to analyze the release behavior of the PLA/Bacitracin Zinc composite structure. The results indicated a sustained release rate, following a Zero Order release kinetics pattern. Furthermore, the shelf life of the composite structure was determined to be 125 days. Python programming was employed to model the release behavior and estimate the shelf life of Bacitracin Zinc (0.5, 1.0, and 2.0) incorporated into the PLA matrix to compare different weight percentages' behavior and shelf life.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139340312","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

EFFECT OF LOW-VELOCITY IMPACT DAMAGE ON THE ELECTROMAGNETIC INTERFERENCE SHIELDING EFFECTIVENESS OF CFRP COMPOSITES 低速冲击损伤对 CFRP 复合材料电磁干扰屏蔽效果的影响

Konya Journal of Engineering Sciences Pub Date : 2023-08-13 DOI: 10.36306/konjes.1302313

Ferhat Yıldırım

{"title":"EFFECT OF LOW-VELOCITY IMPACT DAMAGE ON THE ELECTROMAGNETIC INTERFERENCE SHIELDING EFFECTIVENESS OF CFRP COMPOSITES","authors":"Ferhat Yıldırım","doi":"10.36306/konjes.1302313","DOIUrl":"https://doi.org/10.36306/konjes.1302313","url":null,"abstract":"Carbon fiber reinforced polymer (CFRP) composites are widely used engineering materials in aerospace technologies. These electrically conductive carbon-based materials, due to the lightness advantages, are preferred as shields against electromagnetic radiation, especially in aircraft and satellites. However, the performance losses caused by damage because of flying object collision such as bird, hail, or projectile contain significant uncertainty. Herein, the CFRP composite material was structurally damaged by low velocity impact test set-up at various energy levels between 2.5 to 10 joules, and then its electromagnetic interference (EMI) shielding performance was investigated. In addition, the electrical properties of the material were also examined, and the occurred damage status was evaluated by microscopy studies. Intrinsically, the increase in impact energy increases the grade of damage on body of the material. This results in a drastic decrease in electrical conductivity and EMI performance. In experiments, where 5 joule energy is detected as a threshold level, it has been observed that irreparable damage occurs at energy levels above this value.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350787","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

IMPROVEMENT OF HIGH PLASTICITY CLAY BY USING FILTER SLUDGE 利用过滤污泥改良高塑性粘土

Konya Journal of Engineering Sciences Pub Date : 2023-08-13 DOI: 10.36306/konjes.1311189

İlyas Özkan, Y. Yenginar

{"title":"IMPROVEMENT OF HIGH PLASTICITY CLAY BY USING FILTER SLUDGE","authors":"İlyas Özkan, Y. Yenginar","doi":"10.36306/konjes.1311189","DOIUrl":"https://doi.org/10.36306/konjes.1311189","url":null,"abstract":"Filter sludge (FS) is a waste material that occurs during sugar production in the sugar industry, and since it is not used anywhere, it creates a problem due to storage costs and environmental damage. In the present study, high plasticity clay was stabilized with a filter sludge which has never been used for soil stabilization in field cases. The changes in the geotechnical properties of a high plasticity clay (CH) with the additive of filter sludge (FS) were investigated. The amount of FS mixed into CH soil is 3-6-9-12-15% by dry weight of the soil. Changes in geotechnical properties such as consistency limits, compaction parameters, strength, swelling potential, CBR value of improved soils were determined. The plastic limit and optimum water content increase as the FS content added to the soil increases; liquid limit, plasticity index, and maximum dry density decrease. Improved soil strength increases as the curing time and FS amount increase, and the highest strength was obtained with 15% of FS. At the optimum additive ratio, the unconfined compressive strength increases by 33%. The swelling percentage of CH clay decreases from 42.5% to 20%. According to the wet CBR test results, the bearing capacity of the improved soil increased from %1.1 to %4.4. As a result of this study, it was seen that the FS waste material improved the geotechnical properties of the soil.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350780","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

DEMOGRAFİK ÖZELLİKLERİN ÇEVRİMİÇİ MARKET ALIŞVERİŞİ KULLANIMINA ETKİSİNİN MAKİNE ÖĞRENMESİ YÖNTEMLERİ İLE TAHMİNİ 用机器学习方法预测人口特征对网上购物使用率的影响

Konya Journal of Engineering Sciences Pub Date : 2023-08-07 DOI: 10.36306/konjes.1142886

Burak Bahçivan, Atınç Yilmaz

{"title":"DEMOGRAFİK ÖZELLİKLERİN ÇEVRİMİÇİ MARKET ALIŞVERİŞİ KULLANIMINA ETKİSİNİN MAKİNE ÖĞRENMESİ YÖNTEMLERİ İLE TAHMİNİ","authors":"Burak Bahçivan, Atınç Yilmaz","doi":"10.36306/konjes.1142886","DOIUrl":"https://doi.org/10.36306/konjes.1142886","url":null,"abstract":"Çevrimiçi market alışverişi hizmeti sağlayan firmaların ürün satışlarını arttırmak ve yeni müşteriler elde etmek amacıyla hayata geçirdikleri birçok kampanyanın başarıya ulaşamadığı görülmektedir. Çevrimiçi alışverişte ürün satışlarının artmasını ve kampanyaların başarılı olmasını amaçlayarak, çevrimiçi market üzerinden alışveriş yapan 394 kullanıcıya ait çeşitli veriler anket aracılığı ile toplanmıştır. Çalışmada, sık kullanılan makine öğrenmesi algoritmaları ile modelleme yapılarak çevrimiçi market kullanıcılarının kişisel bakım kategorisinden alışveriş yapma eğilimlerinin öngörülmesini sağlayan bir model ortaya konulmuştur. Karar Ağaçları, K-En Yakın Komşu, Gradyan Arttırılmış Ağaçlar, Rastgele Orman ve Lojistik Regresyon yöntemleri modelleme için kullanılmıştır. Son olarak da ortaya çıkan eğri altında kalan alan (EAKA-AUC), geri çağırma (recall), f1-skor (f1-score) değerleri üzerinden yöntemlerin performans karşılaştırılması yapılmıştır. Çalışma sonucunda en yüksek performans 0.928 doğruluk oranı ve 0.92 AUC değerleri ile rastgele orman yöntemi ile elde edilirken; Gradyan Arttırılmış Ağaçlar yöntemi uygulanan model ise 0.704 doğruluk oranı ve 0.70 AUC değeri ile en düşük performansa ulaşmıştır. Çalışmada elde edilen bulgulara göre, özellikleri \"43-47 yaş altı, günlük internet kullanımı fazla, kapıda kredi kartı ile ödeme tercihi yapmayan\" kullanıcıların kişisel bakım kategorisinden alışveriş yapmayı tercih ettikleri analiz edilmiştir. Elde edilen sonuçlar incelendiğinde, şirketlerin çalışmada ortaya konan model ile hedef müşteri kitlelerini daha iyi belirlemelerine olanak sağlanacağı ve bu sayede yapılan gereksiz yatırımların önüne geçilebileceği öngörülmektedir.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139351525","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

DÖNER DARBELİ DELİK DELME PERFORMANS ANALİZİ ve UYGUN UÇ SEÇİMİ: KAYSERİ HİMMETDEDE OCAĞI ÖRNEĞİ 旋挖钻性能分析和适当的钻头选择：开塞利赫梅特德采石场案例

Konya Journal of Engineering Sciences Pub Date : 2023-08-06 DOI: 10.36306/konjes.1185508

Mehmet Osmanoğlu

引用次数: 0

STATISTICAL METHOD FOR ESTIMATING SELECTED GEOTECHNICAL PROPERTIES OF QUATERNARY SEDIMENT 估算第四纪沉积物选定岩土特性的统计方法

Konya Journal of Engineering Sciences Pub Date : 2023-08-06 DOI: 10.36306/konjes.891806

Abbas J. Al-Taie

{"title":"STATISTICAL METHOD FOR ESTIMATING SELECTED GEOTECHNICAL PROPERTIES OF QUATERNARY SEDIMENT","authors":"Abbas J. Al-Taie","doi":"10.36306/konjes.891806","DOIUrl":"https://doi.org/10.36306/konjes.891806","url":null,"abstract":"Quaternary sediments have characteristics that distinguish them from older soils. In engineering practice, these sediments are of particular interest to engineering geologists and geotechnical engineers because many engineering constructions have to be founded on, or in, them. This paper describes a method for rapidly estimating selected geotechnical properties of some Quaternary soil from the Mesopotamian Plain using statistical correlation equations. The paper explored an expedient statistical method to estimate some geotechnical properties (including total and dry unit weights, void ratio, porosity, Atterberg limits, and compression index) rapidly without running time-consuming and expensive laboratory tests. It was found that the selected properties showed a relatively moderate to high correlation with independent properties. Both the unit weight and void ratio depicted a high correlation with initial water content. while a moderate correlation existed between compression index and initial water content. Also, the plasticity index has a strong correlation with liquid limit values. The results of this study accord an additional usage as facultative engineering tools for geotechnical engineers to utilize for any preliminary engineering design.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139351575","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

FABRICATION OF TERNARY SILICA-CALCIUM-MAGNESIUM AEROGELS: EFFECT OF FEEDING RATE AND MOLAR RATIO ON PROPERTIES 三元硅钙镁气凝胶的制备：进料速度和摩尔比对性能的影响

Konya Journal of Engineering Sciences Pub Date : 2023-08-01 DOI: 10.36306/konjes.1260218

Burcu Karakuzu Ikizler, Pınar Terzioğlu, Tülay Merve TEMEL SOYLU, S. Yücel

{"title":"FABRICATION OF TERNARY SILICA-CALCIUM-MAGNESIUM AEROGELS: EFFECT OF FEEDING RATE AND MOLAR RATIO ON PROPERTIES","authors":"Burcu Karakuzu Ikizler, Pınar Terzioğlu, Tülay Merve TEMEL SOYLU, S. Yücel","doi":"10.36306/konjes.1260218","DOIUrl":"https://doi.org/10.36306/konjes.1260218","url":null,"abstract":"The silica-calcium-magnesium ternary aerogels were prepared by a solvent exchange method and a subsequent ambient pressure drying process. The effect of process parameters such as feeding rate (9-70 mL.min-1) and molar ratio (Si/(Ca:Mg) = 1:1 - 3:1) on the material characteristics including density, elemental content, surface area, pore size, pore volume, and morphology of powders were investigated. Aerogels were characterized by Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma optical emission spectroscopy (ICP-OES), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), Barrett–Joiner–Halenda (BJH) and tapping density analysis. It was found that the molar ratio of Si/(Ca:Mg) could remarkably affect the surface area and density of aerogels, while the feeding rate had slight effect. The resultant aerogels exhibited high specific surface areas. The results showed that the aerogel has a Si/(Ca:3Mg) molar composition obtained with 9 mL.min-1 had the highest surface area (524 m2.g−1). The increase of Ca to Mg molar ratio caused a decrease in the surface area and density of samples. The resultant aerogels are promising candidates as adsorbents to remove various contaminants.","PeriodicalId":17899,"journal":{"name":"Konya Journal of Engineering Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139352768","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

DEVELOPMENT of Cu MATRIX COMPOSITE CONTACTORS REINFORCED by NICKEL COATED SiC 镍涂层碳化硅加固铜基复合接触器的开发

Konya Journal of Engineering Sciences Pub Date : 2023-07-30 DOI: 10.36306/konjes.1255596

Cemalettin Arvas, İ. Altinsoy, T. Yener, G. Efe

引用次数: 0