June 2011
Potential causes of organic carbon normalized partition coefficient (KOC) variability for organic compounds: A review
Even though the most widely-used sorption model is the organic carbon normalized partition coefficient (KOC) partitioning model and this model provides a good approximation of sorption properties in many cases, it is unreasonable to expect such a simple model to accurately describe a process as complex as sorption of organic pollutants to soil. The one main shortcomings of the KOC model is; it...
June 2011
An overview on the use of geosynthetics in pavement structures
Pavement structures commonly fall into two main categories, namely, flexible and rigid pavements. Such structures just as other structures are susceptible to different types of distresses. In order to minimize the deterioration of pavements, geosynthetic reinforcement is one of the techniques adopted to improve their performance. As a result, employment of different geosynthetics to pavement structures is reported by...
June 2011
Psychology and counseling responsibilities for continuous assessment in Malaysian school system
Continuous assessment with its guidance-oriented characteristics in students teaching and learning is integral in determining the quality of students’ performance, and professional responsibility for technical input is ideal. Mass failure at all levels of Malaysian education appears to be the most credible claim for failing standards in education and this suggests significant inadequacies in the management of...
June 2011
Evidenced-based practice in the management of malnutrition in an elderly patient: Case report
Various medical fields are increasingly depending on evidence-based practice supported by scientific findings in the delivery of practices and services to their clients, and different health professionals are also advocating the integration of scientific-based evidence into day-to-day service provision. It is believed that evidence-based practice ensures that the best interventions are available and utilized in...
June 2011
Comparative study on earth pressure distribution behind retaining walls subjected to line loads
In this paper, the earth pressure distribution generated behind a 20 m high retaining wall was estimated by the finite element method and compared with that obtained from classical earth pressure theories. Soil behavior was assumed to be elasto-plastic with Mohr-Coulomb failure criterion. The concrete retaining wall was represented by linear elastic model. Two-dimensional plane-strain finite element computer program...
June 2011
Analytical solutions to Brajinskii’s equations for nuclear fusion plasma by using inertial confinement fusion (ICF) method
Brajinskii's equations are the fundamental relations governing the behavior of the plasma produced during a fusion reaction, especially inertial confinement fusion (ICF) plasma. These equations contain six partial differential coupled together. In this paper, we have tried to give analytical solutions to these equations using a one dimensional method. Laplace transform technique is the main tool to do that with an...
June 2011
The effect of discussion supported geographical research trips on academic achievement
A geographical research trip was organised for the aim of determining the effects of discussion supported geographical research trips on students’ academic achievements. A total of 44 geograhpy student teachers participated in this study which was done with a quasi-experimental model. A knowledge test about the tour region and its’ close environment was applied to the participants before the trip. However,...
June 2011
A study on the influence of transverse shear and rotary inertia on the dynamic stability of cylindrical shells made from functionally graded material
In this paper, dynamic stability analysis of functionally graded cylindrical shells subjected to combined static and periodic axial forces is presented, considering the effect of transverse shear and rotary inertia. Material properties of functionally graded cylindrical shells are considered as temperature dependent and graded in the thickness direction according to a power-law distribution in terms of the volume...
June 2011
Effect of unspent and spent diesel fuel on two agricultural crop plants: Arachis hypogea and Zea mays
The effect of five levels (1, 2, 3, 4 and 5%) of spent and unspent diesel fuel on two agricultural crop plants – Zea mays and Arachis hypogaea was investigated. Significant differences (p < 0.05) were observed between lower percentage levels and higher percentage levels of diesel fuel contamination. From the spent diesel fuel contamination- 4 and 5% levels of contamination had 40% seed...
June 2011
Investigation of the effects of different deflocculants on the viscosity of slips
Various parameters like the solid concentration of the slip, chemical and mineralogical composition, particle size and distribution and shape, density of slip, type and content of electrolyte, temperature and pH, affect the rheological parameters of slip. In this study, the effect of various electrolytes on SöÄŸüt and Konya clays have been assessed. Slips were prepared by adding various amounts of the...
June 2011
Evaluation of gastroprotective effects of Strobianthes crispus leaf extract on ethanol-induced gastric mucosal injury in rats
The anti-ulcerogenic activity of Strobianthes crispus leaf extract was evaluated against ethanol-induced mucosal injury in rats. Five groups of Sprague Dawley rats were pre-treated respectively with: vehicle, distilled water (ulcer control), omeprazole (20 mg kg-1, reference control), 250 mg/kg, 500 mg/kg and 1000 mg/kg S. crispusleaf extracts (experimental groups), 60 min prior to oral...
June 2011
Assignment of mechanical properties of basalt-LDPE composite materials using experimental and computer aided simulation methods
In this study, an experimental study and a computer aided simulation (CAE) have been performed to predict some mechanical properties of basalt filled low density polyethylene (LDPE) composite materials. This study uncovered that the basalt addition in the LDPE matrix affected the mechanical properties of the composite. In addition, the computer aided study results showed a consistency with the experimental study. These...
June 2011
Influence of water characteristics on partial nitrification in a sequencing batch reactor
Due to the potential benefits on energy/cost savings from partial nitrification, this studycarried a series of laboratory tests to study the combined influence from water temperature, organic carbon and dissolved oxygen (DO) on partial nitrification. The purpose of this study was to obtain a general direction to operate activated sludge systems for partial nitrification under changing environment...
June 2011
Economical analysis and energy use efficiency in alfalfa production systems in Iran
Energy use efficiency is one of the key indicators for developing more sustainable agricultural practices. For this purpose energy use in the production of alfalfa was studied in Kermanshah province, western Iran in summer 2010 by analysis of energy flow in this crop. Data was collected using questionnaires and face to face interviews with 63 farmers. Total inputs and outputs of alfalfa systems were calculated and...
June 2011
Investigation on the drying kinetics of sliced and whole rosehips at different moisture contents under microwave treatment
Microwave drying kinetics of rosehips (Rosa Canina L.) harvested at different moisture contents was investigated. The experiments were conducted for both sliced and whole rosehips at different microwave power outputs (90 to 800 W) in a modified microwave drying set-up. Rosehips with initial moisture contents of 0.44 to 0.80 (g water/g dry matter) were dried to moisture content lower than 0.1 (g water/g dry matter). The...
June 2011
A novel intelligent predictor for low-rate global positioning system (GPS) system
Global positioning system (GPS) is the most common instrument utilized for navigational purpose. Unfortunately these satellite signals may get lost due to signal blockage. On the other hand, inertial navigation systems (INSs) can address this problem and overcome the non-availability of GPS signals for a short period of time due to the inherent sensors errors. In such case, INSs can benefit from aiding such as GPS. The...
June 2011
Effects of polysaccharides from Pseudostellaria heterophylla on exercise endurance capacity and oxidative stress in forced swimming rats
The present study aimed to examine the effects of polysaccharides fromPseudostellaria heterophylla (PPH) on exercise endurance capacity and oxidative stress in forced swimming rats. Forty male Wistar rats were divided into four groups:a control group and three PPH treated groups. The rats of control group received 2 mlphysiological saline...
June 2011
Optimal location of thyristor controlled series capacitor (TCSC) for loss reduction in transmission lines with genetic algorithm
With the increasing growth of population and development of industries, huge amount of sums are spent to increase the production of electricity and installation of new units. In this paper, a new method has been presented which reduces the aforementioned costs and prevents the losses in national capitals and fuel sources. This method finds the optimal location of Thyristor controlled series capacitor (TCSC) in...
June 2011
Minimize network congestions in single-row networks
Single-row routing is a technique for routing pair of nodes arranged in a single-row axis or set of nets. The nets make up the wire without crossing each other in the printed circuit board design which is drawn from left to right. The main objective in single-row routing is to achieve the optimal results of minimum congestion arising from the number of horizontal tracks in the network. Optimal results for a single layer...
June 2011
Engineering graphics applied to the study of old methods of olive oil production
This original research paper undertakes a graphic engineering study of old pressing and milling systems which have been used in the production of olive oil over the last centuries, from a graphical and historical point of view, in the main areas of production, Mediterranean countries. The research is based on information found in historical documents, and has been completed by fieldwork carried out in Jaen, Cordoba and...
June 2011
Management and prognosis of HIV infected patients with postoperative sepsis
To investigate the management and prognosis of HIV infected patients with postoperative sepsis, the clinical data of 126 HIV-infected patients aged 20 to 74 years including 114 males and 12 females were retrospectively analyzed. Patients were divided into 3 groups according to the pre-operative level of CD4+ cells: Group A (n = 73), <200 cells/μl; Group B (n = 36): 200...
June 2011
An example of tick-Crimean Congo hemorrhagic fever (CCHF) in Eflani district, Karabuk, Turkey
Ticks are the ectoparasites that threatening animal and human health. Their effects on human health have started to attract attention, especially after the 1980s. Ticks can be seen in many parts of the world. Ticks are active during certain periods; many tick species are active between spring and autumn months. Tick bites may not be noticed immediately; when it is noticed, it should be immediately removed. While the...
June 2011
Culture dimensions in software development industry: The effects of mentoring
Software development is a human centric and sociotechnical activity and like all human activities is influenced by cultural factors. However, software engineering is being further affected because of the globalization in software development. As a result, cultural diversity is influencing software development and its outcomes. The software engineering industry, a very intensive industry regarding human capital, is...
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