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        • KCI등재SCOPUS

          Spatial Analysis of Two-Wheeled Vehicles Traffic Crashes: Osmaniye in Turkey

          Guler,Yalcin,H.Sebnem,Duzgun 대한토목학회 2015 KSCE JOURNAL OF CIVIL ENGINEERING Vol.19 No.7

          To achieve a sustainable traffic management and sustainable transportation planning in urban areas one of the tools that can be used effectively is Geographic Information Systems. In Turkey Transportation Department under Civil Engineering deals with roads and railways which are open to public such as inner city and outer city traffic arrangements with General Directorate of Security. This paper aims to analyze road traffic accident distribution according to the vehicle types involved in the accidents for urban areas in sample of Osmaniye, Turkey. While chi-square test is used for non-spatial analysis kernel density, nearest neighbor distances and Kfunction analysis are applied to determine the existence of clustering and hotspots. The network statistics are executed through SANET (Spatial Analysis on a NETwork) V4.1 that runs on ArcMap 10 and for better visualization and understanding the analysis 3D analysis are generated in ArcScene 10. It is realized that the accidents involving two-wheeled vehicles have a high percentage in all accidents. Also the possible reasons to use two-wheeled vehicles at a high rate in the city center are searched by Location Quotient Technique. The importance of this study is to use GIS as a management system for accident analysis with statistical analysis methods.

        • SCIESCOPUSKCI등재

          The Effect of Dietary Black Cumin Seeds (Nigella Sativa L.) on the Performance of Broilers

          Guler,,Talat,Dalkilic,,B.,Ertas,,O.N.,Ciftci,,M. Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.3

          Three hundred and sixty sexed 3-day-old broiler chicks were divided randomly into six treatment groups (control, antibiotic and black cumin at four levels) of 60 birds each. Black cumin seeds at 0.5%, 1%, 2% or 3% and avilamycin at 10 mg/kgt were added to the basal diet and their effects determined on feed intake, daily live weight gain, feed conversion ratio and carcass characteristics. There were no significant differences in daily feed intake at 21 and 42 days (p>0.05). Average daily gain was significantly different between the treatments. The birds fed the diet containing 1% black cumin seeds and antibiotic were the highest average daily gain, followed by those the other treatment diets and negative control (p<0.05). From 1 to 42 days of age, feed conversion ratios were improved significantly by supplementation with 1% black cumin seeds and with antibiotic (p<0.05) by approximately 5% compared to the control group. Similarly, the highest cold carcass, thigh, breast, wing, neck and liver weights were observed in the 1% black cumin and antibiotic groups (p<0.05). Accordingly, 1% supplementation of black cumin seeds to diets could be considered as an alternative natural growth promoter for poultry instead of antibiotics.

        • KCI등재SCOPUS

          Axial behavior of FRP-wrapped circular ultra-high performance concrete specimens

          Guler,,Soner Techno-Press 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.50 No.6

          Ultra-High Performance Concrete (UHPC) is an innovative new material that, in comparison to conventional concretes, has high compressive strength and excellent ductility properties achieved through the addition of randomly dispersed short fibers to the concrete mix. This study presents the results of an experimental investigation on the behavior of axially loaded UHPC short circular columns wrapped with Carbon-FRP (CFRP), Glass-FRP (GFRP), and Aramid-FRP (AFRP) sheets. Six plain and 36 different types of FRP-wrapped UHPC columns with a diameter of 100 mm and a length of 200 mm were tested under monotonic axial compression. To predict the ultimate strength of the FRP-wrapped UHPC columns, a simple confinement model is presented and compared with four selected confinement models from the literature that have been developed for low and normal strength concrete columns. The results show that the FRP sheets can significantly enhance the ultimate strength and strain capacity of the UHPC columns. The average greatest increase in the ultimate strength and strain for the CFRP- and GFRP-wrapped UHPC columns was 48% and 128%, respectively, compared to that of their unconfined counterparts. All the selected confinement models overestimated the ultimate strength of the FRP-wrapped UHPC columns.

        • SCIESCOPUSKCI등재

          Flexural behaviour of square UHPC-filled hollow steel section beams

          Guler,,Soner,Copur,,Alperen,Aydogan,,Metin Techno-Press 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.43 No.2

          This paper presents an experimental investigation of the flexural behavior of square hollow steel section (HSS) beams subjected to pure bending. Totally six unfilled and nine ultra high performance concrete (UHPC)-filled HSS beams were tested under four-point bending until failure. The effects of the steel tube thickness, the yield strength of the steel tube and the strength of concrete on moment capacity, curvature, and ductility of UHPC-filled HSS beams were examined. The performance indices named relative ductility index (RDI) and strength increasing factor (SIF) were investigated with regard to different height-to-thickness ratio of the specimens. The flexural strengths obtained from the tests were compared with the values predicted by Eurocode 4, AISC-LRFD and CIDECT design codes. The results showed that the increase in the moment capacity and the corresponding curvature is much greater for thinner HSS beams than thicker ones. Eurocode 4 and AISC-LRFD predict the ultimate moment capacity of the all UHPC-filled HSS beams conservatively.

        • SCOPUSSCIEKCI등재

          Effects of orthodontic force on root surface damage caused by contact with temporary anchorage devices and on the repair process

          Guler,,Ozge,Celik,Malkoc,,Siddik The Korean Association Of Orthodontists 2019 대한치과교정학회지 Vol.49 No.2

          Objective: This study aimed to evaluate the effects of force loading on root damage caused by contact with temporary anchorage devices (TADs) during orthodontic treatment and to examine the repair process 4, 8, and 12 weeks after TAD contact by micro-computed tomography (CT). Methods: We enrolled 42 volunteers who required bilateral upper first premolar extractions. The experimental study design was as follows. For both first premolars, cantilever springs were placed, and then TADs were immediately inserted between the premolars of all volunteers. According to the removal order of the appliances, the participants were divided into the TAD group (Group T: n = 21, only TAD removal) and the spring group (Group S: n = 21, only spring removal). A splitmouth design was adopted in both groups as follows. For each volunteer, the left premolars were extracted 4, 8, or 12 weeks after TAD-root contact. The right premolars were extracted immediately after contact in both groups (Groups T-C and S-C) and used as positive controls. Resorption volumes and numbers of craters were determined by micro-CT. Results: The numbers of resorption craters were higher in Group T than in Group S at 8 and 12 weeks (p < 0.01). Crater volumes were higher in Group T than in Group S at 4 and 12 weeks (p < 0.01, both). Conclusions: Root injury was not completely repaired 12 weeks after root-TAD contact, even when the TADs were removed in cases of continuous force application.

        • SCIESCOPUSKCI등재

          Response of a rectangular plate-column system on a tensionless Winkler foundation subjected to static and dynamic loads

          Guler,,K.,Celep,,Z. Techno-Press 2005 Structural Engineering and Mechanics, An Int'l Jou Vol.21 No.6

          The response of a plate-column system having five-degree-of-freedom supported by an elastic foundation and subjected to static lateral load, harmonic ground motion and earthquake motion is studied. Two Winkler foundation models are assumed: a conventional model which supports compression and tension and a tensionless model which supports compression only. The governing equations of the problem are obtained, solved numerically and the results are presented in figures to demonstrate the behavior of the system for various values of the system parameters comparatively for the conventional and the tensionless Winkler foundation models.

        • KCI등재SCOPUS

          Axial behavior of FRP-wrapped circular ultra-high performance concrete specimens

          Soner,Guler 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.50 No.6

          Ultra-High Performance Concrete (UHPC) is an innovative new material that, in comparison to conventional concretes, has high compressive strength and excellent ductility properties achieved through the addition of randomly dispersed short fibers to the concrete mix. This study presents the results of an experimental investigation on the behavior of axially loaded UHPC short circular columns wrapped with Carbon-FRP (CFRP), Glass-FRP (GFRP), and Aramid-FRP (AFRP) sheets. Six plain and 36 different types of FRP-wrapped UHPC columns with a diameter of 100 mm and a length of 200 mm were tested under monotonic axial compression. To predict the ultimate strength of the FRP-wrapped UHPC columns, a simple confinement model is presented and compared with four selected confinement models from the literature that have been developed for low and normal strength concrete columns. The results show that the FRP sheets can significantly enhance the ultimate strength and strain capacity of the UHPC columns. The average greatest increase in the ultimate strength and strain for the CFRP- and GFRP-wrapped UHPC columns was 48% and 128%, respectively, compared to that of their unconfined counterparts. All the selected confinement models overestimated the ultimate strength of the FRP-wrapped UHPC columns.

        • KCI등재후보SCOPUS

          The Effect of Dietary Black Cumin Seeds (Nigella Sativa L.) on the Performance of Broilers

          T.,Guler,B.,Dalkılı?,O.,N.,Ertas,M.,?ift?i 아세아·태평양축산학회 2006 Animal Bioscience Vol.19 No.3

          Three hundred and sixty sexed 3-day-old broiler chicks were divided randomly into six treatment groups (control, antibiotic and black cumin at four levels) of 60 birds each. Black cumin seeds at 0.5%, 1%, 2% or 3% and avilamycin at 10 mg/kgt were added to the basal diet and their effects determined on feed intake, daily live weight gain, feed conversion ratio and carcass characteristics. There were no significant differences in daily feed intake at 21 and 42 days (p>0.05). Average daily gain was significantly different between the treatments. The birds fed the diet containing 1% black cumin seeds and antibiotic were the highest average daily gain, followed by those the other treatment diets and negative control (p<0.05). From 1 to 42 days of age, feed conversion ratios were improved significantly by supplementation with 1% black cumin seeds and with antibiotic (p<0.05) by approximately 5% compared to the control group. Similarly, the highest cold carcass, thigh, breast, wing, neck and liver weights were observed in the 1% black cumin and antibiotic groups (p<0.05). Accordingly, 1% supplementation of black cumin seeds to diets could be considered as an alternative natural growth promoter for poultry instead of antibiotics.

        • Slide Session : OS-ONC-07 ; Oncology : Violence Among Cancer Patients in Eastern Turkey

          ( Hanim Guler Sahin ), ( Gulnihal Guvendi ), ( Huseyin Avni Sahin ), ( Dilek Kusaslan ), ( Erkan Dogan ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

          Background: Health-care providers generally remain unaware of violence In Turkey and there are limited numbers of studies focuses on violence and there is no data regarding violence among cancer patients in Eastern Turkey. The aim of this study was to estimate the prevalence of violence and to investigate its related factors in Eastern Turkey. Methods: This cross-sectional descriptive study was performed in medical school of Yuzuncu Yil University, in Turkey. All patients who attended the medical oncology clinics were included in the study. The patients were interviewed face to face by a physician in complete privacy. Data were evaluated by using SPSS computer software version 21. Results: Between May and June 2014, all cancer patients attending the major tertiary hospital were included in this descriptive study. Of the 100 participants 61 (61%) were women 39 (39%) were men. 61 (%61) of the respondents were not able to read and write. 62 patients (62 %) were aware of his/her disease and 59 (96.7 %) of them had learned the disease from a physician. Main supporters were the daughters/son (41%) and couples (38%) during the illness. Although 16% were threatened to be abandon, 79% were afraid of being abandon. 45% of the patients thought that they were neglected. Only female patients stated physical violence and before the illness rate was 18% (100% by the male partner) and it decreased to 8% (87.5% by the partner and 12.5 % by the son) after the illness. Conclusions: Even though violence rate among cancer patients decreased during the illness period it is still a serious public health problem. Health-care providers should increase their awareness to protect the cancer patients from violence. Education and improvements in economic autonomy and society`s attitudes may also reduce violence towards cancer patients.

        • KCI등재SCOPUS

          Flexural behaviour of square UHPC-filled hollow steel section beams

          Soner,Guler,Alperen,Çopur,Metin,Aydogan 국제구조공학회 2012 Structural Engineering and Mechanics, An Int'l Jou Vol.43 No.2

          This paper presents an experimental investigation of the flexural behavior of square hollow steel section (HSS) beams subjected to pure bending. Totally six unfilled and nine ultra high performance concrete (UHPC)-filled HSS beams were tested under four-point bending until failure. The effects of the steel tube thickness, the yield strength of the steel tube and the strength of concrete on moment capacity, curvature, and ductility of UHPC-filled HSS beams were examined. The performance indices named relative ductility index (RDI) and strength increasing factor (SIF) were investigated with regard to different height-to-thickness ratio of the specimens. The flexural strengths obtained from the tests were compared with the values predicted by Eurocode 4, AISC-LRFD and CIDECT design codes. The results showed that the increase in the moment capacity and the corresponding curvature is much greater for thinner HSS beams than thicker ones. Eurocode 4 and AISC-LRFD predict the ultimate moment capacity of the all UHPC-filled HSS beams conservatively.

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