Pub Date : 2018-06-26DOI: 10.7212/ZKUFBD.V8I1.1054
Recep Benzer
Bu calisma, Kutahya ili sinirlarinda bulunan yeralti ve yuzeysel sularindaki nitrat duzeylerini yapay sinir aglari yaklasimi ile belirlemek amaciyla yapilmistir. Calismada incelenen yeralti ve yuzeysel su numunelerindeki nitrat duzeyleri ve ortalama degerleri sirasiyla; 0.01-190.63 mg l -1 , 0.01-10.20 mg l -1 , 16.09 mg l -1 , 2.51 mg l -1 olarak belirlenmistir. Bu calisma, Avrupa Birligi tarafindan uygulanan Nitrat Direktifi kapsaminda, Kutahya Il Tarim Mudurlugu’nun 2012 ve 2013 yillarina ait yeralti (23 istasyon) ve yuzey (10 istasyon) sulari olcumleri kullanilarak yapilmistir. Kutahya iline ait yeralti ve yuzeysel sularindaki nitrat seviyelerinin Insani Tuketim Amacli Sular Hakkinda Yonetmeligine uygun oldugu tespit edilmistir. Ancak nitrat verilerindeki bazi degerlerin ulusal ve uluslararasi limit degerlerinden yuksek oldugu gozlenmistir. Bu calisma, gelecek yillardaki nitrat duzeylerinin daha uzun sureli olarak takibinin geleneksel yontemin yaninda yapay sinir aglari yaklasimi ile de degerlendirilmek suretiyle tahmin edilmesi ve bu konuda gerekli tedbirlerin alinmasi acisindan onemlidir.
{"title":"Yeraltısuyu ve Yüzey Sularının Nitrat Kirliliği Tahmini: Kütahya Örneği","authors":"Recep Benzer","doi":"10.7212/ZKUFBD.V8I1.1054","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.1054","url":null,"abstract":"Bu calisma, Kutahya ili sinirlarinda bulunan yeralti ve yuzeysel sularindaki nitrat duzeylerini yapay sinir aglari yaklasimi ile belirlemek amaciyla yapilmistir. Calismada incelenen yeralti ve yuzeysel su numunelerindeki nitrat duzeyleri ve ortalama degerleri sirasiyla; 0.01-190.63 mg l -1 , 0.01-10.20 mg l -1 , 16.09 mg l -1 , 2.51 mg l -1 olarak belirlenmistir. Bu calisma, Avrupa Birligi tarafindan uygulanan Nitrat Direktifi kapsaminda, Kutahya Il Tarim Mudurlugu’nun 2012 ve 2013 yillarina ait yeralti (23 istasyon) ve yuzey (10 istasyon) sulari olcumleri kullanilarak yapilmistir. Kutahya iline ait yeralti ve yuzeysel sularindaki nitrat seviyelerinin Insani Tuketim Amacli Sular Hakkinda Yonetmeligine uygun oldugu tespit edilmistir. Ancak nitrat verilerindeki bazi degerlerin ulusal ve uluslararasi limit degerlerinden yuksek oldugu gozlenmistir. Bu calisma, gelecek yillardaki nitrat duzeylerinin daha uzun sureli olarak takibinin geleneksel yontemin yaninda yapay sinir aglari yaklasimi ile de degerlendirilmek suretiyle tahmin edilmesi ve bu konuda gerekli tedbirlerin alinmasi acisindan onemlidir.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88224630","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}
Gunumuzde kablosuz aglarin kullaniminin hizla artmasi ile birlikte gunluk hayatta hemen hemen her alanda kablosuz cihazlar hayatimizin degismez bir parcasi haline gelmistir. Hizla artan teknolojik gelismeler ile beraber guvenlik uzerine gelistirilen cozumler devamli yenilenmek ve yeni cozumlerinde uretilmesi zorunlulugunu dogurmaktadir. Mevcut sistemlerde ag guvenligi icin verilerin ve paketlerin iletilmesi icin bircok protokol kullanilmaktadir. Bunlardan en onemlileri IPSec (Internet Protokol Security), WEP (Wireless Equivalent Privacy), WPA (Wireless Proteced Access), RSN (Robust Security Network), ESP (Encapsulated Security Payload), AHP (Authentication Header) protokolleridir. Bunlarin yaninda guvenlik duzeyini artirmak icin guvenlik duvari, IKE (Internet Key Exchange) gibi farkli yontemlerde kullanilmaktadir. Bunlara ek olarak VPN (Virtual Private Network)’de internet uzerinden aglara kontrollu olarak IP tuneli ile baglanmayi saglamaktadir. Butun bu yontemler hala kablosuz aglarda tam guvenligi saglamamaktadir. Bu calismada cesitli kablosuz aglar icin gelistirilen ve cok katmanli olarak adlandirdigimiz sistemler incelenmis ve guvenligin uc temel unsuru olan coklu protokollerin, guvenlik duvari ve VPN’nin ayni anda kablosuz aglara uygulanmasi ile kablosuz aglarda guvenligin nasil arttigi ve bu uc faktorle beraber veri iletiminde ortalama alinan veri trafikleri performanslarinin nasil etkilendigi ortaya konmustur.
{"title":"Kablosuz ağlarda çok katmanlı güvenlik ve performansa etkisi","authors":"Hacı Bayram Karakurt, Cemal Koçak, I. Dogru","doi":"10.7212/ZKUFBD.V8I1.905","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.905","url":null,"abstract":"Gunumuzde kablosuz aglarin kullaniminin hizla artmasi ile birlikte gunluk hayatta hemen hemen her alanda kablosuz cihazlar hayatimizin degismez bir parcasi haline gelmistir. Hizla artan teknolojik gelismeler ile beraber guvenlik uzerine gelistirilen cozumler devamli yenilenmek ve yeni cozumlerinde uretilmesi zorunlulugunu dogurmaktadir. Mevcut sistemlerde ag guvenligi icin verilerin ve paketlerin iletilmesi icin bircok protokol kullanilmaktadir. Bunlardan en onemlileri IPSec (Internet Protokol Security), WEP (Wireless Equivalent Privacy), WPA (Wireless Proteced Access), RSN (Robust Security Network), ESP (Encapsulated Security Payload), AHP (Authentication Header) protokolleridir. Bunlarin yaninda guvenlik duzeyini artirmak icin guvenlik duvari, IKE (Internet Key Exchange) gibi farkli yontemlerde kullanilmaktadir. Bunlara ek olarak VPN (Virtual Private Network)’de internet uzerinden aglara kontrollu olarak IP tuneli ile baglanmayi saglamaktadir. Butun bu yontemler hala kablosuz aglarda tam guvenligi saglamamaktadir. Bu calismada cesitli kablosuz aglar icin gelistirilen ve cok katmanli olarak adlandirdigimiz sistemler incelenmis ve guvenligin uc temel unsuru olan coklu protokollerin, guvenlik duvari ve VPN’nin ayni anda kablosuz aglara uygulanmasi ile kablosuz aglarda guvenligin nasil arttigi ve bu uc faktorle beraber veri iletiminde ortalama alinan veri trafikleri performanslarinin nasil etkilendigi ortaya konmustur.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88349080","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}
Pub Date : 2018-06-26DOI: 10.7212/ZKUFBD.V8I1.1013
E. Biçer
In this paper we consider one dimensional wave equation of the form We study the stability of the considered equation in Hyers- Ulam sense. Our technique depends on Laplace transform method.
{"title":"Hyers-Ulam stability for the wave equation","authors":"E. Biçer","doi":"10.7212/ZKUFBD.V8I1.1013","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.1013","url":null,"abstract":"In this paper we consider one dimensional wave equation of the form We study the stability of the considered equation in Hyers- Ulam sense. Our technique depends on Laplace transform method.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80051848","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}
At low temperature applications and large cooling capacities, ammonium refrigerant used widely and these type refrigeration applications have electrical energy consuming by using vapour compression cycle. This causes increasing cooling cost, consuming more fossil fuel and to create environment problem. The vapour compression-absorption two stage refrigeration cycle is alternative to solve this overcoming problems. In this study, a thermodynamic analysis of the vapour compression-absorption two stage refrigeration (novel cycle) was performed. While NH 3 -H 2 O was used as fluid pair in the absorption section, NH 3 was used in the vapour compression section. It was presented that electrical energy consumption in the novel cycle is 60% lower than classical one stage vapour compression refrigeration cycle and 24% lower than single effect vapour compression-absorption cascade refrigeration cycle. The thermodynamics analysis was performed for different condenser and generator temperatures. The result shows that COP of the novel cycle increases by increasing the generator temperature, while it decreases by increasing the condenser temperatures. The exergetic efficiency of the system decreases on increasing the generator and condenser temperatures. The novel cycle provide by using inexpensive alternative heat energy sources like solar energy, geothermal energy and waste heat at low temperatures.
{"title":"Thermodynamic Analysis of Vapour Compression- Absorption Two Stage Refrigeration Cycle","authors":"C. Cimşit","doi":"10.7212/ZKUFBD.V8I1.999","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.999","url":null,"abstract":"At low temperature applications and large cooling capacities, ammonium refrigerant used widely and these type refrigeration applications have electrical energy consuming by using vapour compression cycle. This causes increasing cooling cost, consuming more fossil fuel and to create environment problem. The vapour compression-absorption two stage refrigeration cycle is alternative to solve this overcoming problems. In this study, a thermodynamic analysis of the vapour compression-absorption two stage refrigeration (novel cycle) was performed. While NH 3 -H 2 O was used as fluid pair in the absorption section, NH 3 was used in the vapour compression section. It was presented that electrical energy consumption in the novel cycle is 60% lower than classical one stage vapour compression refrigeration cycle and 24% lower than single effect vapour compression-absorption cascade refrigeration cycle. The thermodynamics analysis was performed for different condenser and generator temperatures. The result shows that COP of the novel cycle increases by increasing the generator temperature, while it decreases by increasing the condenser temperatures. The exergetic efficiency of the system decreases on increasing the generator and condenser temperatures. The novel cycle provide by using inexpensive alternative heat energy sources like solar energy, geothermal energy and waste heat at low temperatures.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77498635","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}
Pub Date : 2018-06-26DOI: 10.7212/ZKUFBD.V8I1.1088
Şenol Şen, A. Yilmaz, Ömer Geban
Bu calismanin amaci, lise ogrencilerinin elektrokimya konusundaki kavramsal anlamalarini belirlemek amaciyla uc asamali bir kavram testi gelistirmek, guvenirlik ve gecerlik calismalarini yapmaktir. Calismaya 268 lise ogrencisi katilmistir. Ogrencilerin, yaslari 16-20 arasinda degismektedir. Calismada uc asamadan olusan 29 soruluk bir test kullanilmistir. Kapsam ve gorunus gecerligi icin uzman gorunusu alinmistir. Madde analizlerini yapmak icin testin toplam puanlarina gore alt %27 ve ust %27'lik gruplar belirlenmistir. Yapilan madde analizleri sonucunda madde gucluk indeksleri ve madde ayiricilik indeksleri tespit edilmistir. Yapilan bu calismalar sonucunda 10 soru testten cikarilmistir. Testin bu son hali icin tekrar uzman gorusu alinmistir. Ayrica kapsam gecerligi icin hatali pozitif ve hatali negatif degerleri de hesaplanmistir. Daha sonra yapi gecerligi icin istatistiksel analizler yapilmis ve 19 soruluk testin ilk asamasi icin guvenirlik katsayisi .833; birinci ve ikinci asamasi icin .803, her uc asamasi icin; .810 olarak bulunmustur. Emin olma duzeyinin (sadece ucuncu asama) guvenirlik katsayisi ise .753 olarak hesaplanmistir. Calisma sonunda Elektrokimya Kavram Testinin guvenilir ve gecerli bir test oldugu kabul edilmistir.
{"title":"Üç Aşamalı Elektrokimya Kavram Testinin Geliştirilmesi","authors":"Şenol Şen, A. Yilmaz, Ömer Geban","doi":"10.7212/ZKUFBD.V8I1.1088","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.1088","url":null,"abstract":"Bu calismanin amaci, lise ogrencilerinin elektrokimya konusundaki kavramsal anlamalarini belirlemek amaciyla uc asamali bir kavram testi gelistirmek, guvenirlik ve gecerlik calismalarini yapmaktir. Calismaya 268 lise ogrencisi katilmistir. Ogrencilerin, yaslari 16-20 arasinda degismektedir. Calismada uc asamadan olusan 29 soruluk bir test kullanilmistir. Kapsam ve gorunus gecerligi icin uzman gorunusu alinmistir. Madde analizlerini yapmak icin testin toplam puanlarina gore alt %27 ve ust %27'lik gruplar belirlenmistir. Yapilan madde analizleri sonucunda madde gucluk indeksleri ve madde ayiricilik indeksleri tespit edilmistir. Yapilan bu calismalar sonucunda 10 soru testten cikarilmistir. Testin bu son hali icin tekrar uzman gorusu alinmistir. Ayrica kapsam gecerligi icin hatali pozitif ve hatali negatif degerleri de hesaplanmistir. Daha sonra yapi gecerligi icin istatistiksel analizler yapilmis ve 19 soruluk testin ilk asamasi icin guvenirlik katsayisi .833; birinci ve ikinci asamasi icin .803, her uc asamasi icin; .810 olarak bulunmustur. Emin olma duzeyinin (sadece ucuncu asama) guvenirlik katsayisi ise .753 olarak hesaplanmistir. Calisma sonunda Elektrokimya Kavram Testinin guvenilir ve gecerli bir test oldugu kabul edilmistir.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"126 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80054311","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}
Pub Date : 2018-06-26DOI: 10.7212/ZKUFBD.V8I1.1067
Emrah Polatlı
In this paper, we introduce quadrapell quaternions. We give some combinatorial properties of these quaternions. In addition, we apply the binomial transform to these quaternions and derive some algebraic properties.
{"title":"On Certain Properties of Quadrapell Quaternions","authors":"Emrah Polatlı","doi":"10.7212/ZKUFBD.V8I1.1067","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.1067","url":null,"abstract":"In this paper, we introduce quadrapell quaternions. We give some combinatorial properties of these quaternions. In addition, we apply the binomial transform to these quaternions and derive some algebraic properties.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84702561","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}
Bu calismada biyobozunur bir yeni Ag@Soyayagi nanokompozite polimeri sentezlenerek elektronik uygulamasi arastirildi. Soya yagi gumus nanoparcaciklari (Ag NPs) ortaminda, oda sicakliginda atmosferik oksijene maruz birakilarak oto-okside edildi. Nanokompozitin optik ozellikleri UV-VIS ve floresans spektrometresi ile belirlendi. Elde edilen Ag@Soya yagi nanokompoziti kullanilarak bir Ag/Ag@Soyayagi/ p -Si metal-aratabaka-yariiletken (MAY) Schottky diyodu yapildi. Bu diyodun karakterizasyonu Akim-Gerilim ( I - V ) olcumleri ile yapildi ve MAY Schottky diyodun dogrultucu davranis gosterdigi gozlendi. Yari-logaritmik I - V grafiginde farkli egimlere sahip iki ayri lineer bolge gozlendi. Bu davranis parallel iki diyot ile modellendi ve MAY yapinin idealite faktoru, bariyer yuksekligi, seri direnci ve sont direnci hesaplandi.
{"title":"Yeni bir biyobozunur Ag-Soya yağı nanokompozit polimerin elektronik uygulaması","authors":"Necati Başman","doi":"10.7212/ZKUFBD.V8I1.747","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.747","url":null,"abstract":"Bu calismada biyobozunur bir yeni Ag@Soyayagi nanokompozite polimeri sentezlenerek elektronik uygulamasi arastirildi. Soya yagi gumus nanoparcaciklari (Ag NPs) ortaminda, oda sicakliginda atmosferik oksijene maruz birakilarak oto-okside edildi. Nanokompozitin optik ozellikleri UV-VIS ve floresans spektrometresi ile belirlendi. Elde edilen Ag@Soya yagi nanokompoziti kullanilarak bir Ag/Ag@Soyayagi/ p -Si metal-aratabaka-yariiletken (MAY) Schottky diyodu yapildi. Bu diyodun karakterizasyonu Akim-Gerilim ( I - V ) olcumleri ile yapildi ve MAY Schottky diyodun dogrultucu davranis gosterdigi gozlendi. Yari-logaritmik I - V grafiginde farkli egimlere sahip iki ayri lineer bolge gozlendi. Bu davranis parallel iki diyot ile modellendi ve MAY yapinin idealite faktoru, bariyer yuksekligi, seri direnci ve sont direnci hesaplandi.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85811378","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}
Pub Date : 2018-06-26DOI: 10.7212/ZKUFBD.V8I1.1029
M. Düz
In this paper, The Fourier transforms studied for special solution of ordinary differential equations. These equations of which right side is in the form , where is a polnomial from m.th degree, are nonhomogeneous constant coeffients.. With this method we can solve all the equations that can be solved by the method of undeterminated coefficients.That is, this method is an alternative to the undetermined coefficients method.
{"title":"An Application Of Fourier Transform","authors":"M. Düz","doi":"10.7212/ZKUFBD.V8I1.1029","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.1029","url":null,"abstract":"In this paper, The Fourier transforms studied for special solution of ordinary differential equations. These equations of which right side is in the form , where is a polnomial from m.th degree, are nonhomogeneous constant coeffients.. With this method we can solve all the equations that can be solved by the method of undeterminated coefficients.That is, this method is an alternative to the undetermined coefficients method.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75452927","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}
Asansorlerde kullanilan celik tel halatlar, zaman icerisinde isletme kosullarina bagli olarak farkli hasar turlerine, farkli derecelerde maruz kalirlar. Bu calismada, hasar gormus halat numunelerinin eksenel kaldirma kapasitelerindeki degisimler incelenmistir. Asansor halatlarini servis disina birakma kriterleri goz onune alinarak, laboratuvar ortaminda halat numunelerine 3 farkli hasar verilmistir. Halat numunelerine cekme testleri yapilarak, halatlarin cekme mukavemetlerindeki dusus miktarlari tespit edilmistir. Bu calismada, asansor sistemleri icin de uygun olan 6x19 Standart bagimsiz tel halat ozlu tel halat kullanilmistir. Elde edilen veriler, asansorler icin halat secimi, halatlarin periyodik bakimi ve gerekirse halatlari servis disi birakma gibi konularda yardimci olacak deneysel sonuclara dayali bir kaynak olusturmustur. Incelenen halat icin en kritik hasar tipi, 16 saat suresince korozyona maruz kalma olarak tespit edilmistir.
{"title":"Farklı Hasarlara Maruz Bırakılan 6x19 Standart Çelik Tel Halatın Mekanik Özelliklerindeki Değişimlerin Deneysel İncelenmesi","authors":"Yusuf Aytaç Onur, O. Aycan","doi":"10.7212/ZKUFBD.V8I1.948","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.948","url":null,"abstract":"Asansorlerde kullanilan celik tel halatlar, zaman icerisinde isletme kosullarina bagli olarak farkli hasar turlerine, farkli derecelerde maruz kalirlar. Bu calismada, hasar gormus halat numunelerinin eksenel kaldirma kapasitelerindeki degisimler incelenmistir. Asansor halatlarini servis disina birakma kriterleri goz onune alinarak, laboratuvar ortaminda halat numunelerine 3 farkli hasar verilmistir. Halat numunelerine cekme testleri yapilarak, halatlarin cekme mukavemetlerindeki dusus miktarlari tespit edilmistir. Bu calismada, asansor sistemleri icin de uygun olan 6x19 Standart bagimsiz tel halat ozlu tel halat kullanilmistir. Elde edilen veriler, asansorler icin halat secimi, halatlarin periyodik bakimi ve gerekirse halatlari servis disi birakma gibi konularda yardimci olacak deneysel sonuclara dayali bir kaynak olusturmustur. Incelenen halat icin en kritik hasar tipi, 16 saat suresince korozyona maruz kalma olarak tespit edilmistir.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80795947","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}
The work presented in this study aimed to investigate the influence of axial loads applied on shotcrete panels. The experimental work is composed of strengthening of four bare reinforced concrete (RC) frames with shotcrete panels. In two of them, the panels are fully integrated to the frames and in the rest; the panels are connected only to the beams. At one of the specimens from each group, the beams are cambered before the construction of RC panels. After the cure of the concrete of the panel, the beams are released to create axial loads on the panels. The specimens are tested under lateral reversed cycling loads. From the results it has been observed that the axial load applied on the panel can cause increase on the lateral load carrying capacity and energy dissipation of the system at the fully integrated panel specimen. No significant effect of the axial load is observed at the partially integrated infilled frame.
{"title":"Effect of Axial Load on Thin Shotcrete Panels","authors":"P. Teymür, S. Pala, E. Yüksel","doi":"10.7212/ZKUFBD.V8I1.697","DOIUrl":"https://doi.org/10.7212/ZKUFBD.V8I1.697","url":null,"abstract":"The work presented in this study aimed to investigate the influence of axial loads applied on shotcrete panels. The experimental work is composed of strengthening of four bare reinforced concrete (RC) frames with shotcrete panels. In two of them, the panels are fully integrated to the frames and in the rest; the panels are connected only to the beams. At one of the specimens from each group, the beams are cambered before the construction of RC panels. After the cure of the concrete of the panel, the beams are released to create axial loads on the panels. The specimens are tested under lateral reversed cycling loads. From the results it has been observed that the axial load applied on the panel can cause increase on the lateral load carrying capacity and energy dissipation of the system at the fully integrated panel specimen. No significant effect of the axial load is observed at the partially integrated infilled frame.","PeriodicalId":17742,"journal":{"name":"Karaelmas Science and Engineering Journal","volume":"186 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85431715","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}
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