http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Taner Yilmaz (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
Impact spectrum of flood hazard on seismic vulnerability of bridges
Yilmaz, Taner,Banerjee, Swagata Techno-Press 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.66 No.4
Multiple hazards (multihazard) conditions may cause significant risk to structures that are originally designed for individual hazard scenarios. Such a multihazard condition arises when an earthquake strikes to a bridge pre-exposed to scour at foundations due to flood events. This study estimates the impact spectrum of flood-induced scour on seismic vulnerability of bridges. Characteristic river-crossing highway bridges are formed based on the information obtained from bridge inventories. These bridges are analyzed under earthquake-only and the abovementioned multihazard conditions, and bridge fragility curves are developed at component and system levels. Research outcome shows that bridges having pile shafts as foundation elements are protected from any additional seismic vulnerability due to the presence of scour. However, occurrence of floods can increase seismic fragility of bridges at lower damage states due to the adverse impact of scour on bridge components at superstructure level. These findings facilitate bridge design under the stated multihazard condition.
-
Impact spectrum of flood hazard on seismic vulnerability of bridges
Taner Yilmaz,Swagata Banerjee 국제구조공학회 2018 Structural Engineering and Mechanics, An Int'l Jou Vol.66 No.4
Multiple hazards (multihazard) conditions may cause significant risk to structures that are originally designed for individual hazard scenarios. Such a multihazard condition arises when an earthquake strikes to a bridge pre-exposed to scour at foundations due to flood events. This study estimates the impact spectrum of flood-induced scour on seismic vulnerability of bridges. Characteristic river-crossing highway bridges are formed based on the information obtained from bridge inventories. These bridges are analyzed under earthquake-only and the abovementioned multihazard conditions, and bridge fragility curves are developed at component and system levels. Research outcome shows that bridges having pile shafts as foundation elements are protected from any additional seismic vulnerability due to the presence of scour. However, occurrence of floods can increase seismic fragility of bridges at lower damage states due to the adverse impact of scour on bridge components at superstructure level. These findings facilitate bridge design under the stated multihazard condition.
-
Taner Alatas,Mesude Yilmaz,Necati Kuloglu,Mehmet Cakiroglu,Tacettin Geckil 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.7
In this study, modified bitumens were prepared by mixing two types of Styrene-Butadiene-Styrene (SBS-D and SBS-M) and Ethylene-Vinyl-Acetate (EVA) with B 160/220 base bitumen 3% by weight. The short- and long-term aging processes were applied to base and modified binders with rolling thin film oven test and pressure aging vessel, respectively. Dynamic Shear Rheometer (DSR) test conducted at different temperatures and frequencies showed that while the shear complex modulus (G*) of unaged, short- and long-term aged binders reduced, the phase angle (δ) of those increased. The shear complex modulus values increased and the phase angle values decreased by the effect of aging and increase in frequency. The G*/sinδ values increased with the addition of modifiers to the base bitumen. Comparison of modifiers demonstrated that the effective modifier type shows variety according to frequency, temperature and aging conditions.
-
A Retrospective Multicenter Evaluation of Cutaneous Melanomas in Turkey
Gamsizkan, Mehmet,Yilmaz, Ismail,Buyukbabani, Nesimi,Demirkesen, Cuyan,Demiriz, Murat,Cetin, Emel Dikicioglu,Ince, Umit,Akalin, Taner,Demirkan, Nese Calli,Lebe, Banu,Erdem, Ozlem,Gokoz, Ozay,Sakiz, Da Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.23
Background: We defined melanoma distribution in a large series of Turkish patients and evaluated the prognostic parameters of melanomas. Materials and Methods: A total of 1574 patients' data was retrospectively collected at 18 centers in Turkey. Demographic characteristics were questioned and noted. Prognostic parametres were evaluated based on sentinel lymph node involvement. Results: Mean age was 56.7 (4-99) years. While 844 (53.6%) cases were male, 730 (46.4%) cases were female. One thousand four hundred forty-seven (92%) cases were invasive melanoma and 127 (8%) cases were in-situ melanoma. The most common histopathological form was the superficial spreading melanoma (SSM) which was found in 549 patients (37.9%). It was followed by nodular melanoma in 379 (26.2%), acral lentiginous melanoma (ALM) in 191 (13.2%) and lentigo maligna melanoma in 132 (9.1%), respectively. On univariate analysis, lymphovascular invasion (p<0.001), tumor thickness (p<0.001), histopathological subtype (p<0.001), Clark level (p=0.001), ulceration (p<0.001), ${\geq}6/mm^2$ mitosis (p=0.005), satellite formation (p=0.001) and gender (p=0.03) were found to be associated with sentinel lymph node positivity. Regression was associated with sentinel lymph node negativity (p=0.017). According to multivariate analysis, lymphovascular invasion and tumor thickness were significant independent predictive factors of SLN positivity. Patient age, tumor localization, precursor lesions, lymphocytic infiltration and neurotropism were not related with sentinel lymph node involvement. Conclusions: In this retrospective analysis, it was found that the prevalence of SSM is at a lower rate while the prevalence of ALM is at a higher rate when compared to western countries. According to Breslow index; most of the melanoma lesions' thickness were greater than 2 mm, corresponding Clark IV. Vascular invasion and tumor thickness are the most important factors for sentinel lymph node involvement.
-
Nevin Gamze Karsli,Okan Gul,Taner Yilmaz 한국섬유공학회 2022 Fibers and polymers Vol.23 No.4
This study aims to investigate the effect of graphene nanoplatelet (GNP) and terpolymer addition on themechanical, adhesive wear and thermal properties of carbon fiber (CF) reinforced poly(phenylene sulphide) (PPS) matrixcomposites. In the composites the CF content was fixed at 10 wt.% and the terpolymer content at 2 wt.%, while the GNPcontent was changed to 0.1, 0.3 and 0.5 wt.%. Physical properties of composites were evaluated by using tensile test,adhesive wear test, differential scanning calorimeter analysis and scanning electron microscopy analysis. As a result, it wasconcluded that the simultaneously addition of both 0.5 wt.% GNP and 2 wt.% terpolymer to CF reinforced compositesimproved the mechanical and tribological properties of composites. Thus, a solution has been developed to increase theefficiency of use of high performance composite materials produced for use in areas requiring good mechanical andtribological performance such as the aerospace and automotive industries.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
