Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 137, listelenen: 101-120
-
The effect of heat-treated boron derivative waste at 600 degrees C on the mechanical and microstructural properties of cement mortar
(Elsevier Sci LTD, 2017)Turkey holds 73% of the world's boron deposits. 25.3% of the total deposits are tincal ore and located in Eskisehir Kirka region. During the production of 1 million tons of borax pentahydrate (Na2O center dot 2B(2)O(3)center ... -
Monthly streamflow forecasting using continuous wavelet and multi-gene genetic programming combination
(Elsevier Science BV, 2018)Streamflow is an essential component of the hydrologic cycle in the regional and global scale and the main source of fresh water supply. It is highly associated with natural disasters, such as droughts and floods. Therefore, ... -
Leaching of trace metals from high carbon fly ash stabilized highway base layers
(Elsevier Science BV, 2012)Fly ash produced by power plants in the United States occasionally contains significant amounts of unburned carbon due to the use of low nitrogen-oxide and sulphur-oxide burners in recent years. This ash cannot be reused ... -
Long-term spatiotemporal trend analysis of precipitation and temperature over Turkey
(Wiley, 2018)Monthly precipitation and temperature data for Turkey were obtained from the Climate Research Unit Time Series (CRU TS V3.23) dataset (1901-2014) and analysed. The records of 81 grids, each located in a province, were ... -
Streamflow Forecasting Using Four Wavelet Transformation Combinations Approaches with Data-Driven Models: A Comparative Study
(Springer, 2018)This study investigates the use of wavelet transformation (WT) as preprocessing tool in data-driven models (DDMs) for forecasting streamflow 7days ahead. WT used are Continuous wavelet transformation (CWT), discrete wavelet ... -
Forecasting Daily Streamflow for Basins with Different Physical Characteristics through Data-Driven Methods
(Springer, 2018)Modelling streamflow is essential for activities, such as flood control, drought mitigation, and water resources utilization and management. Artificial neural network (ANN), adaptive neuro-fuzzy inference system (ANFIS), ... -
Utilization of sepiolite materials as a bottom liner material in solid waste landfills
(Pergamon-Elsevier Science LTD, 2014)Landfill bottom liners are generally constructed with natural clay soils due to their high strength and low hydraulic conductivity characteristics. However, in recent years it is increasingly difficult to find locally ... -
Sepiolite as an alternative liner material in municipal solid waste landfills
(Asce-Amer Soc Civil Engineers, 2008)Compacted clay has traditionally been used as a lining material in municipal solid waste landfills. However, natural clays may not always provide good contaminant sorption properties. One alternative material that is ... -
Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression
(Elsevier Sci LTD, 2014)In this study, compressive strength, modulus of elasticity and steel tensile coupon tests are performed to determine material properties. Sixteen hollow cold formed steel tubes and 48 concrete filled steel tube specimens ... -
Drainage and Mechanical Behavior of Highway Base Materials
(Asce-Amer Soc Civil Engineers, 2014)The mechanical and drainage properties of graded aggregate base (GAB) materials used in mechanistic pavement design are the level one inputs. Several highway agencies need an evaluation of the stiffness and drainage ... -
Determination of elasticity modulus of low strength concrete and its effect on the risk assessment results by DSVB
(Gazi University, Fac Engineering Architecture, 2017)Turkey is frequently exposed to destructive earthquakes causing loss of lives and property. There are many factors that affect the seismic vulnerability of existing buildings. Poor concrete quality is a major and widespread ... -
Effects of Compaction Method and Aggregate Properties on Mechanical Behavior of Granular Base Layer
(Turkish Chamber Civil Engineers, 2013)The aggregate properties and their compaction degrees are the two most important factors that have significant effects on the design of granular highway base layers. The effects of impact compaction and vibratory compaction ... -
Instantaneous turbulent forces and impulse on a rough bed: Implications for initiation of bed material movement
(Amer Geophysical Union, 2013)The overall objective of this study is to identify the physical mechanisms responsible for the entrainment of an exposed particle subject to rapidly fluctuating hydrodynamic forces in the case of channel flow with a fully ... -
Accounting for the role of turbulent flow on particle dislodgement via a coupled quadrant analysis of velocity and pressure sequences
(Elsevier Sci LTD, 2017)Recent studies have demonstrated the importance of duration, in addition to magnitude, of energetic turbulent events on particle dislodgement under threshold of motion conditions. It is therefore proposed here that the use ... -
CFD simulations of self-compacting concrete with discrete phase modeling
(Elsevier Sci LTD, 2018)Self-compacting concrete (SCC), is a special type of concrete with high compaction ability in the form-work with its own weight and compacted without any vibration. The main important advantage of SCC is the stability of ... -
Investigation of wind loads on the Osmangazi Bridge with numerical modeling
(Pamukkale University, 2018)Wind loads are crucial dynamic load for various structures. It is a unique engineering problem particularly because it requires the combined expertise of transportation, structure and fluid mechanics engineers. With the ... -
Instantaneous pressure measurements on a spherical grain under threshold flow conditions
(Cambridge University Press, 2014)The aim of this investigation was to experimentally examine the surface pressures and resulting forces on an individual sediment grain whose size is comparable to the scales of the turbulent channel flow in an effort to ... -
Reassessment of the flood damage at a river diversion hydropower plant site: lessons learned from a case study
(Springer, 2017)Despite the accumulated vast theoretical and practical knowledge on the flood-related topics, the lack of precautions taken against the natural disasters keeps causing fatality and property damage. In this study, a recent ... -
Examination of changes in the Turkish hydropower development, regulation, and planning
(SAGE Publications LTD, 2016)Hydropower has a critical role in supplying the energy demand and sustaining the economic and industrial growth in Turkey. Over the past decade, several policy changes have been made to improve the contribution of hydropower ... -
Change in maximum isolator displacements due to change in orientation of scaled near field ground motion records
(Gazi University, Fac Engineering Architecture, 2018)In this study, the change in maximum isolator displacements (MIDs) of a seismically isolated structure is studied as a function of ground motion orientation. The isolator units of the analyzed structure is composed of lead ...
