August 2011
Route entropy based capacity reliability assessment and application in multi-objective satisfactory optimization of logistics network
Capacity reliability assessment and application are emerging active area in transportation science. This paper built assessment model of capacity reliability of road network from the perspective of route entropy by referring to relevant concepts and methods applied in water distribution system. Route entropy represents the uncertainty of route selection of macro traffic flow in a road network. The probability space and...
August 2011
Finite-time stability analysis for linear time-varying singular impulsive systems
This paper considers the finite-time stability of linear time-varying singular impulsive systems. A lemma which states an important inequality was first established. Then some sufficient conditions for the systems to be finite-time stable were derived. The proposed results remove some restrictions of the existing methods and thus can be applied to more general systems. Finally, a numerical example was presented to...
August 2011
Aesthetics aspects of Japanese Bridges
Science and technology, which for ages, were symbols of human greatness and were thought to lead mankind to welfare and happiness, has come to invoke anxiety and fear. The human race is losing belief in technological civilization and no longer approves the forces that created it. Increasingly, science and technology are seen as useful only when they operate within appropriate social limits. This particularly concerns...
August 2011
Security improvement of credit card online purchasing system
The paper aims to improve the security of the credit card online purchasing with taking into account the time and cost issues. Since the current online purchasing system using credit card has security drawbacks, a security improvement is suggested in this work by implementing a model which integrates the current authentication system of credit card with the fingerprint authentication. Moreover, it complements with a...
August 2011
Agricultural awareness for prospectıve teachers
Personal decision making, participation in civic and cultural affairs, and economic productivity are the end goals of education in different disciplines at the individual level. If knowledge and understanding of agriculturally-related scientific and technologically-based concepts are included in the processes required for personal decision-making, participation in civic and cultural affairs, and economic productivity,...
August 2011
Evaluation of the current condition of packaging wastes throughout Istanbul
Environmental problems that have been faced recently are differentiated in terms of their source and progress. Household wastes have increased in amount and variety due to improvements in life standards and technological issues. Disposal of wastes before they damage the environment especially concerns the environment and public health as well as the economy. Priority in waste management is regarded as prevention,...
August 2011
Health-related quality of life outcome evaluation for intensity-modulated radiotherapy versus helical tomotherapy using EORTC QLQ-C30 and EORTC QLQ-HN35 core questionnaires for nasopharyngeal carcinomas
This study compared the health-related quality of life (HRQoL) outcomes for patients with nasopharyngeal carcinoma (NPC) treated by step-and-shoot intensity-modulated radiotherapy (SaS-IMRT) versus helical tomotherapy (HT). Data from one-forty-two NPC patients consecutively treated at the same institute between March 2006 and December 2009 were collected and analysed. They received either SaS-IMRT (case number = 62) or...
August 2011
Investigation of carbonic anhydrase levels under exercise and hyperthermic stress in rats given L-carnitine
L- carnitine is a co-factor of the enzymatic system involved in long chain fatty acid transport across the mitochondrial membrane. L-carnitine also modulates the metabolism of coenzyme-A (CoA). The functions of L-carnitine in skeletal muscle are critical to sustaining normal bioenergetics during exercise. Therefore, it is not surprising that the use of supplementary carnitine to improve physical performance has become...
August 2011
Artificial neural networks for mechanical strength prediction of lightweight mortar
In this paper, the practical results of mechanical strength of different lightweight mortars made with 0, 5,10, 15, 20, 25, 30, 35, 40, 45, 50,55, 60, 65, 70, 75, 80, 85, 90, 95 and 100% of scoria instead of sand and 0.55 water-cement ratio and 350 kg/m3 cement content have been used to generate artificial neural networks (ANNs). Totally, 52 feed-forward back-propagation neural networks (FFBNN) with different...
August 2011
Development of interaction test suite generation strategy with input-output mapping supports
Software testing relates to the process of finding errors/defects and/or ensuring that a particular software of interest meets its specification. One of the key activities within software testing is on the test case design. Over the years, many test case design strategies have been developed in the literature including that of boundary values, equivalence partitioning, decision tables, robustness consideration as well...
August 2011
Laser inspection of rubber profiles
In the rubber industry, especially in the tire branch, inspection of shape and dimensions of freshly extruded rubber profiles which are components of a final product is an important problem. Accuracy of shape and dimensions of these profiles largely defines the quality of final product. Reviewed in this paper are existing solutions and inspection technologies which are in use for this type of problem. Proposed in this...
August 2011
Thermal stress analysis of functionally graded rotating discs
The present study deals with stress analysis on functionally graded rotating annular discs subjected to temperature distributions parabolically decreasing with radius. Authors used infinitesimal deformation theory of elasticity and for graded parameters power law functions in the solution procedure. With the increasing temperature, the tangential stress component decreased at the inner surface whereas increased at the...
August 2011
An experimental study on shear reinforcement in RC beams using CFRP-bars
Fibre reinforced polymer (FRP) as an alternative to steel in reinforced concrete (RC) beams has become increasingly popular. The merits of FRP include high strength to weight ratio and corrosion resistance, and its advantages cannot be ignored in civil engineering. Consequently, FRP has attracted considerable interest from researchers. In this research, the effects of using CFRP bars as shear...
August 2011
Optimization of surface roughness in turning alloy steel by using Taguchi method
The surface quality of the machined parts is one of the most important product quality characteristics and one of the most frequent customer requirements. In this study the Taguchi robust parameter design for modeling and optimization of surface roughness in dry single-point turning of cold rolled alloy steel 42CrMo4/AISI 4140 using TiN-coated tungsten carbide inserts was presented. Three cutting parameters, the cutting...
August 2011
First term interior design studio as a process of teaching, learning and expressing
The first year at university can be defined as an adaptation period for the students. In this period, students try to get familiar with their professions, in addition to the physical and social environment. Within the scope of ‘architectural design studios’, students are included in a new learning process in which they deal with a number of concepts, which are the bases of profession with participatory...
August 2011
Optimal preventive maintenance of refuse collection vehicles using probabilistic and computational intelligence approach
In recent years, reliability, availability, maintainability and cost concepts have been widely applied as a tool for maintenance planning. This paper presents novel optimal preventive maintenance strategy for refuse collection vehicles (RCV), based on probabilistic and computational intelligence approach and suitable for companies with diverse vehicle fleets’ structure, making direct application of...
August 2011
Impacts of random scrap rate on production system in supply chain environment with a specific shipping policy
This paper examines impacts of random scrap rate on production system in supply chain environment with a specific n+1 distribution policy. The purpose of introducing such a specific shipping policy is to cut down inventory holding costs for both producer and customer in vendor-buyer supply chain environment. Mathematical modeling along with Hessian matrix equations is used to simultaneously determine the optimal...
August 2011
Modeling and non-functional analysis of service-oriented architectures using AADL
Nowadays, service-oriented architectures (SoA) are increasingly used to develop dynamic enterprise systems. Due to the increasing need for high quality services, it is desirable to consider different qualitative aspects in this architecture (for example security, availability, reliability, fault tolerance, etc.). As architecture analysis and design language (AADL) can be used in the analysis of partially defined...
August 2011
Comparative bactericidal activity of various soaps against gram-positive and gram-negative bacteria
The aim of this study was to check bactericidal activity of eight market soaps from different manufacturers against gram-positive and gram-negative bacteria. Minimum inhibitory concentration disinfectants were determined by broth dilution method. Minimum bactericidal concentration (MBC) of soaps was determined by agar method. Phenol was used as control to compare its activity with soaps. In the list of soaps, along with...
August 2011
Engendering earthquake response spectra for Dhaka region usable in dynamic analysis of structures
Structures are subjected to time varying-forces due to earthquakes which in turn produce time-dependent displacements and stresses within the structures. From a design stance, only the maximum values of displacement and stress are of interest. For survival, the structure must withstand the peak value whenever that may occur. Therefore, knowing the peak values is of utmost important and this information is made available...
August 2011
Effects of preserved and unpreserved timolol maleate on the surface of the corneal epithelium of albino rabbits
Timolol maleate, ophthalmic solution, is frequently prescribed for glaucoma, although the use of this drop is likely to interfere with wound healing in the immediate corneal surgeries. The purpose of this study is to evaluate the toxicity of commercially prepared topical timolol maleate 0.005 and 0.05% and its preservative benzalkonium chloride (BAC) 0.0004 and 0.001%. And have also shown its preservative free effect on...
August 2011
Demarcation of prospective groundwater recharge zones in hard rock area from Southern India
In semi-arid regions, particularly in hard rock areas (Southern India), shallow aquifers are a major source of potable groundwater. These aquifers are indiscriminately exploited to meet the growing demand of water for domestic, irrigation as well as industrial uses. In order to achieve sustainable development, it is essential not only to delineate the groundwater potential zones but also suitable augmentation schemes...
August 2011
Batch and column study of haloacetic acids adsorption onto granular activated carbon
The granular activated carbon (GAC) was used as an adsorbent for its ability to remove haloacetic acids (HAAs) from drinking water by batch and column experiments. Various thermodynamic parameters such as ∆Gº, ∆Hº and ∆Sº have been calculated. The thermodynamics of HAAs onto GAC system indicates spontaneous and exothermic nature of the process. The ability of GAC to adsorb HAAs in a fixed bed column...
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