{"title":"JEOLOJİ MÜHENDİSLİĞİ GÜNCEL ÇALIŞMA ALANLARI","authors":"Hüseyin Sendi̇r, Didem Yasi̇n, Volkan Karabacak","doi":"10.31796/ogummf.1399848","DOIUrl":"https://doi.org/10.31796/ogummf.1399848","url":null,"abstract":"Eskişehir Osmangazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi özel sayısı kapsamında Cumhuriyetimizin kuruluşunun 100. Yıl Dönümü nedeni ile hazırlanan bu derleme makalesinde, Jeoloji Mühendisliği’nin geçmişten günümüze gelişimi, çalışma alanları ve geleceği ile ilgili bilgiler derlenmiştir.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"32 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139185712","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}
{"title":"YAPI ELEMANLARININ YENİDEN KULLANIMI VE ENVANTER KISITLI YAPISAL OPTİMİZASYON","authors":"Soner Sezer, Hakan Özbaşaran, Murat Hi̇çyilmaz","doi":"10.31796/ogummf.1280445","DOIUrl":"https://doi.org/10.31796/ogummf.1280445","url":null,"abstract":"İnşaat sektörü çevresel etkiler ve atık oluşumu bakımından en büyük paydaşlardan birisidir. Karar verici kuruluşların çevresel etkileri azaltmak amacıyla baskılarını günden güne arttırdığı bilinmektedir. Bu amaç doğrultusunda, bir döngüsel ekonomi stratejisi olan yeniden kullanımın yapısal sistemlere uygulanması değerli bir çözüm olarak ortaya çıkmıştır. Bu literatür incelemesinde, son yıllarda yapı elemanlarının yeniden kullanımına olan ilginin artması ile gündeme gelen envanter kısıtlı yapısal optimizasyon (EKYO) alanındaki çalışmaların incelenmesi amaçlanmıştır. EKYO yönteminden yapısal elemanların yeniden kullanımı ile elde edilen kazanımı maksimize etmesi beklenmektedir. EKYO yönteminin daha geniş bir perspektifte tartışılabilmesi için öncelikle yapısal elemanlarının yeniden kullanımı, inşaat sektörünün çevresel etkileri ve döngüsel ekonomi modeli, yapı elemanlarının yeniden kullanımının önündeki engeller ve sunulan çözümler, literatürde sunulan uygulama incelemeleri ve vaka çalışmaları özetlenmiştir. Ardından bu incelemenin ana konusu olan envanter kısıtlı yapısal optimizasyona dair literatürdeki çalışmaların geniş incelemeleri sunulmuştur.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"46 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139185412","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}
{"title":"A BRIEF OVERVIEW TO SOLID WASTE TREATMENT & RECENT PRACTICE OF TURKEY","authors":"H. Kurama","doi":"10.31796/ogummf.1374306","DOIUrl":"https://doi.org/10.31796/ogummf.1374306","url":null,"abstract":"High rates of energy and goods consumption, combined with increasing population growth and high living standards, lead to the ever-increasing production of solid waste. The amount of solid waste generated today has reached a level that poses serious threats to the environment and the sustainable management of the country's economies. Although action plans are being prepared and implemented by countries, unions and institutions for the environmentally friendly and sustainable management of solid waste, it is seen that the threat still exists for the near future. The aim of this compilation study, in which global and country-based statistics are briefly presented, is to raise awareness of the increasing threat.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139274062","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}
{"title":"YÜKSEK KATLI BİNALAR İÇİN YAPIM TEKNOLOJİLERİNİN DEĞERLENDİRİLMESİ VE KARŞILAŞTIRILMASI1","authors":"Maral Fakhari̇, Hasan Ünver","doi":"10.31796/ogummf.1324093","DOIUrl":"https://doi.org/10.31796/ogummf.1324093","url":null,"abstract":"The development of human societies in different countries around the world is increasing dramatically. High-rise buildings are being constructed as a response to the challenges of limited and expensive urban land, and they are crucial for urbanization. Today, besides serving as structures for economic growth in cities, high-rise buildings remain symbolic of prestige and power for countries and companies. These buildings entail immense architectural and engineering complexity, necessitating a comprehensive planning approach for their design and construction. With the availability of numerous alternative solutions for various aspects of building design and construction systems, there is a need for an evaluation framework that is comprehensive, transparent in decision-making, and reliable and practical in its application. This paper after looking at the historical processes of high-rise buildings and the concept of high-rise buildings according to the CTBUH (Council on Tall Buildings and Urban Habitat) evaluates the high-rise building’s structural systems, materials, and construction technology and methods on an international scale.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282521","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}
Sultan BÜTÜN ŞENGEL, Nilay Tunca, Hatice Deveci̇, Harun Baş, Vural Bütün
{"title":"Akıllı malzemeler ve ileri biyomedikal uygulamaları: HNT ve HNT-polimer kompozitler","authors":"Sultan BÜTÜN ŞENGEL, Nilay Tunca, Hatice Deveci̇, Harun Baş, Vural Bütün","doi":"10.31796/ogummf.1204094","DOIUrl":"https://doi.org/10.31796/ogummf.1204094","url":null,"abstract":"Halloysite nanotubes (HNTs) are natural aluminosilicate clay minerals with the formula of Al2Si2O5(OH)4 nH2O. HNTs, which can be obtained naturally as well as synthetically, occur in layered, spherical, flat and other forms. HNTs with an outer diameter of 50 nm and a length ranging from 500 to 1000 nm have a hollow and nanotube-shaped structure. It has natural deposits in Brazil, Turkey, New Zealand, China, the United States, Korea, Japan, and France, and it is a low-cost material that can be obtained through ore purification. Thanks to their high surface area, large pore volume, rheological properties, high interactions, and high binding capacities with biopolymers, HNTs are used in a wide range of areas. For example, HNTs have become a frequently used material in environmental applications such as wastewater treatment and removal of organic contaminants and dyes. It is also used in the production of nanoelectronics and nanocomposites, catalytic studies, flame retardants in make-up materials, forensic sciences and biomedical fields. The specific properties of HNT used in the biomedical field lead to numerous applications. In this review, it is aimed to present the advantages of HNTs for use in drug delivery systems, immune therapy, anti-infection applications, cancer therapy, bioimaging, biosensing applications, tissue engineering applications, implants and hygiene-cosmetics materials.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"161 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139349656","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}
Ertuğrul İşlek, Hüseyin Boğaç Poyraz, İsmail Özer
{"title":"ALEV SPREY PİROLİZİ İLE İÇİ BOŞ Al2O3 KÜRECİKLERİN SENTEZLENMESİNDE BAŞLANGIÇ KİMYASALI OLARAK KULLANILAN EMÜLSİYONLARIN MORFOLOJİ ÜZERİNE ETKİLERİ","authors":"Ertuğrul İşlek, Hüseyin Boğaç Poyraz, İsmail Özer","doi":"10.31796/ogummf.1272408","DOIUrl":"https://doi.org/10.31796/ogummf.1272408","url":null,"abstract":"Bu çalışmada, Alev Sprey Pirolizi (ASP) metodunun içi boş Al2O3 küreciklerin sentezinde kullanılabilirliği incelenmiştir. Nihai partikül sentezini sağlayacak başlangıç kimyasalı reaktöre emülsiyon formunda beslenmiştir. Emülsiyonlar, alüminyum nitrat sulu çözeltilerinin, hacimce %9,4 ile %18,8 arasında değişen konsantrasyonlarda yüzey etken madde (PEG-30 dipolihidroksistearat) içeren ksilen sisteminde dağıtılması ile elde edilmiştir. Nitrat çözeltisi/ksilen oranı 1:2 – 1:4 aralığında değiştirilmiş ve çalışılan her oranda artan PEG-30 miktarının dağılan faz boyutunu azalttığı ve emülsiyon kararlığını arttırdığı gözlenmiştir. Hazırlanan emülsiyonlar sabit yanma koşullarında reaktöre beslenmiştir. Partiküllerin fiziksel ve kimyasal analizleri taramalı elektron mikroskobu ile yapılmıştır. Analizlerde, kullanılan her bir sistem için, dolu partiküller ile birlikte içi boş küreciklerin bir arada bulunduğu heterojen bir yapı gözlenmiştir. Emülsiyonlardaki normal dağılıma göre daha geniş ve bimodal dağılıma sahip partiküller, emülsiyon üniform yapısının reaktörde korunamadığını ve/veya oluşan farklı yanma koşullarının damlacıktan-partiküle ve gazdan-partiküle olmak üzere iki farklı mekanizmaya sebep olduğunu göstermiştir. Bütünlüğünü koruyan içi boş partiküllerin belirli boyutun altında oluşabildiği, iri boş partiküllerin ise deforme oldukları gözlenmiştir.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"23 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139355544","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}
{"title":"ESTIMATING THE NOISE-INDUCED HEARING LOSSES UNDER FUZZY ENVIRONMENT","authors":"Mert Mutlu","doi":"10.31796/ogummf.1296740","DOIUrl":"https://doi.org/10.31796/ogummf.1296740","url":null,"abstract":"Noise causes many negative effects both in our daily life and working life, reduces our quality of life, and affects our mental health directly or indirectly. The most common consequence of noise exposure is especially permanent hearing loss called noise-induced hearing loss (NIHL). NIHL is very prevalent in almost every stage of the mining industry. Therefore, the assessment of noise levels of mining operations and the estimation of NIHLs of employees is an important issue to prevent and minimize them. This study is aimed to the modeling of NIHL prediction at a quarry located in Aksaray, Turkey. Initially, noise levels were measured with a sound level meter for employees working in different positions for the quarry, and daily exposure levels (Lex,8h) were determined. Audiometry tests were also performed on all employees and NIHLs were evaluated and determined by an audiometrist. According to the results, 5 employees had NIHL in this enterprise. A fuzzy inference system (FIS)-based NIHL estimating model implemented on fuzzy logic using the Sugeno inference mechanism was developed. The model predicts NIHLs for given occupation, age, experience, and Lex,8h parameters. To determine the accurate prediction ability of the model, field noise measurements and audiometry test results data were used. The obtained results indicated that the model has accurate a prediction ability with a 94% success rate. This study proposes a method with high predictive ability using fuzzy sets theory, and will be a guide for the top management in considering the damage effects of noise in enterprises.","PeriodicalId":502977,"journal":{"name":"Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139355848","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}