Yayın tarihi için Makale Koleksiyonu listeleme
Toplam kayıt 137, listelenen: 21-40
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The effect of non divergence-free velocity fields on field scale ground water solute transport
(Springer, 2006)Solute plume subjected to field scale hydraulic conductivity heterogeneity shows a large dispersion/macrodispersion, which is the manifestation of existing fields scale heterogeneity on the solute plume. On the other hand, ... -
Ground water contaminant transport by nondivergence-free, unsteady and nonstationary velocity fields
(Elsevier Science BV, 2006)Pore flow velocity is assumed to be a nondivergence-free, unsteady, and non-stationary random function of space and time for ground water contaminant transport in a heterogeneous medium. The laboratory-scale stochastic ... -
E-bidding proposal preparation system for construction projects
(Pergamon-Elsevier Science LTD, 2006)The bidding process is one of the most important phases in the construction industry. The major objective of construction companies is to expand business volume by successful bidding on various projects. For this reason, ... -
An investigation of waste foundry sand in asphalt concrete mixtures
(SAGE Publications LTD, 2006)A laboratory study regarding the reuse of waste foundry sand in asphalt concrete production by replacing a certain portion of aggregate with WFS was undertaken. The results showed that replacement of 10% aggregates with ... -
Least-squares finite element method for the advection-diffusion equation
(Elsevier Science Inc, 2006)The space-time least-squares finite element methods are constructed for the advection-diffusion equation by using both linear shape functions and quadratic B-spline shape functions. Two test problems are studied to demonstrate ... -
Commentary on comparison of MODIS snow cover and albedo products with ground observations over the mountainous terrain of Turkey
(Copernicus Publications, 2007)The MODerate-resolution Imaging Spectroradiometer (MODIS) snow cover product was evaluated by Parajka and Blosch (2006) over the territory of Austria. The spatial and temporal variability of the MODIS snow product classes ... -
Mapping field surface soil moisture for hydrological modeling
(Springer, 2007)Soil moisture is a major control variable on hydrological processes both at the storm event scale and in the long term. The aggregate effect on the mean water balance over an area can be quantified successfully using ... -
Effects of elevated temperatures on properties of concrete
(Elsevier Sci LTD, 2007)Concrete material in structures is likely exposed to high temperatures during fire. The relative properties of concrete after such an exposure are of great importance in terms of the serviceability of buildings. This paper ... -
Web-based quality control of ready mixed concrete
(Pergamon-Elsevier Science LTD, 2007)The ready mixed concrete industry is an important part of today's construction business environment. This industry provides the required quality of concrete used in construction works. The production of this concrete has ... -
Impact of cyclic wetting-drying on swelling behavior of lime-stabilized soil
(Pergamon-Elsevier Science LTD, 2007)In this study, the impact of cyclic wetting and drying on swelling behavior of lime-stabilized clayey soils has been investigated. Swelling potential and swelling pressure tests have been carried out on soil mixtures with ... -
Electricity production opportunities from multipurpose dams (case study)
(Pergamon-Elsevier Science LTD, 2007)The hydropower is the leading source of renewable energy. It provides more than 97% of all electricity generated by renewable sources. The main advantage of hydro systems is elimination of the cost of fuel. Hydropower on ... -
The current status and future opportunities of hydroelectricity
(Taylor & Francis Inc, 2007)This study presents the status of and prospects for the current state of small hydropower technologies used to produce electricity and assesses their future prospects. The hydropower currently provides about 20% of the ... -
Some factors influencing effect of core diameter on measured concrete compressive strength
(Amer Concrete Inst, 2007)Various concrete mixtures were produced using crushed limestone and river gravels with four different maximum sizes of 10, 15, 22, and 30 mm (0.39, 0.59, 0.87, and 1.18 in.). The 28-day cube strength of concrete mixtures ... -
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 ... -
Capturing knowledge in construction projects: Knowledge platform for contractors
(Asce-Amer Soc Civil Engineers, 2008)Managing knowledge effectively is critical to the survival and advance of a company, especially in project-based industries such as construction. However, capturing knowledge in construction projects is a tedious task, as ... -
Mechanical evaluation of asphalt-aggregate mixtures prepared with fly ash as a filler replacement
(Natl Research Council Canada-N R C Research Press, 2008)The objective of this study is to investigate the effect of fly ash as a filler replacement on the mechanical properties of asphalt-aggregate mixtures. Utilization of fly ash, which is the by-product of coal-fired power ... -
The effect of polypropylene fibers on asphalt performance
(Pergamon-Elsevier Science LTD, 2008)Polypropylene fibers are extensively used in civil engineering applications for many years. These fibers are used in concrete as a three-dimensional secondary reinforcement. Due to adhesion between polypropylene fibers and ... -
On the cumulant expansion up scaling of ground water contaminant transport equation with nonequilibrium sorption
(Springer, 2008)The laboratory-scale ground water transport equation with nonequilibrium sorption reaction subjected to unsteady, nondivergence-free, and nonstationary velocity fields is up-scaled to the field-scale by using the ... -
Improving sub-contractor selection process in construction projects: Web-based sub-contractor evaluation system (WEBSES)
(Elsevier Science BV, 2008)One of the most important phases in the construction industry (CI) is the bidding process. During the bidding process, selecting the most appropriate sub-contractors (SCs) for the relevant sub-works is highly critical for ... -
Assessing concrete strength by means of small diameter cores
(Elsevier Sci LTD, 2008)Estimation of concrete strength may be gained from compression tests conducted on cores having a diameter considerably smaller than the recommended one of 100 mm. This paper examines the results of tests applied on the 69 ...