October 2012
Is there no urban forestry in the developing world?
Urban forestry and greening offer a multitude of benefits to the inhabitants of towns and cities. However, the nature and magnitude of these frequently depend upon the context. Yet, at first glance, the developing world context around urban forestry debates seems to be poorly represented in the international peer-reviewed literature. This is examined in this paper, followed by a brief outline of ten key research areas...
October 2012
A survey on formation of virtual cellular manufacturing systems (VCMSs) and related issues
In an environment with fluctuating demand and unpredictable parts mix compositions, the efficiency of cellular systems necessitates the use of virtual cells. Virtual cellular manufacturing systems (VCMSs) are based on a highly flexible manufacturing concept designed to improve the performance of classical cellular manufacturing systems (CMSs) and job shop manufacturing environment by creating virtual grouping the...
October 2012
Possibilities of using preservatives in environmentally friendly furniture industry
Impregnation of the wooden equipment used as furniture, decoration and building materials, outdoor effects and some kinds of air situations as a result of varnishing is studied in this work. Especially, the changes in the wooden material, varnish and impregnation material, used massively in furniture are studied according to seasons (spring, summer, autumn, winter) and months (3, 6, 9 and 12). According to the...
October 2012
Atrazine transport and distribution in field soils and comparison of the predictions made by leaching estimation and chemistry model-pesticide (LEACHP) model
Affluent use of herbicide such as Atrazine especially in corn farms must be supplemented with water and soil resources. This research was conducted in a pilot farm of Chamran University, Faculty of Water Science Engineering, Ahvaz, Iran. This research investigated transmission of the dynamic use of atrazine in various depths of soil in growth period and after growth period. Also, atrazine transmission potentiality and...
October 2012
Simulation of bleaching of soda pulp from Hesperaloe funifera by polynomial and neural fuzzy models
Influence of variables [soda, (0.5 to 3.0%), hydrogen peroxide (1.0 to 10.0%) and time (1 to 5 h)] in the bleaching of soda pulp of Hesperaloe funifera, on the properties of bleached pulps, was studied. Polynomial and neural fuzzy models had reproduced the results of Kappa number, brightness and viscosity of the pulps with errors less than 10 and 15%, respectively. By simulating the bleaching process of...
October 2012
Imaging fractures in a massive limestone with ground penetrating radar, Haymana, Turkey
This study was conducted by utilizing ground-penetrating radar (GPR) to determine the subsurface conditions of the Mollaresul High Plateau located in Haymana, Ankara, Turkey. The site is thought to be managed as a marble quarry. The GPR reflection profiling method was used because it could be applied rapidly and non-invasively without causing any damage to the surveyed area. Approximately N-S directed measurements...
October 2012
Effective factors for improving the personnel’s attitudes towards patient safety
Emphasizing on the patient safety improvement has led to extensive tendencies towards measuring safety culture and improving it in the medical centers. So, a research was conducted in Shahid Modarres Hospital to measure safety culture before and after education and to determine the affecting factors. A population of 236 employees was defined, including top managers, middle managers and personnel. They were given the...
October 2012
A study of the factors affecting construction time in Western Australia
Delays are major problems that face the Western Australia’s construction industry. Delays can lead to many negative effects such as cost overruns, and is of high concern to those who are involved in the construction industry. This study was set to identify the major causes of delays in the Western Australian construction industry, by means of a literature review and a questionnaire survey. A total of 48 delay...
October 2012
Hydrolysis degradation of polycarbonate under microwave irradiation by using design of experiment software
Depolymerization of polycarbonate (PC) is one of the important issues in environment especially in industry field. In this project degradation of PC is done by employing the hydrolysis method using microwave irradiation. PC degradation was carried out under constant amount of tetrahydrofuran (THF) as co-solvent and by using various amount of water (H2O) as main solvent and different concentration of sodium hydroxide...
October 2012
Internal model control - proportional integral derivative controller tuning for first order plus time delayed unstable systems using bacterial foraging algorithm
This paper proposes a bacterial foraging optimization (BFO) algorithm based approach to tune the parameters of IMC-PID controller for a class of first order plus time delayed (FOPTD) unstable systems with various ‘θ/τ’ ratios. Initially, the proportional controller based system identification procedure is attempted to convert the higher order unstable process model into an equivalent FOPTD unstable...
October 2012
Optimal location of facts devices for solving multi-objective optimal power flow (OPF) using improved shuffled leaping frog algorithm
Renewable energy is the demand of the future and wind energy plays a very pivotal role in it but the main disadvantage with wind energy is that its efficiency is very low and the main reason for this is the demand for reactive power. If the power network is not able to satisfy the wind farm reactive power requirement, the overall energy losses in the distribution networks would be increased. Hence minimization of...
October 2012
Analysis of leaching kinetics of tincal in phosphoric acid solutions in high temperatures
The aim of the study is to propose an alternative process to boric acid generation by researching the dissolution kinetic of tincal in phosphoric acid solutions in high temperature, and to root the procuring of Na2HPO4 that is used commonly as byproduct in industry during the process. Reaction temperature, particle size, stirring speed, acid concentration and solid/liquid ratio were selected as parameters of...
October 2012
Mineral chemistry of K-feldspar megacrystals and petrochemistry of the Keban syenitic intrusive, ElaziÄŸ, Eastern Turkey
The Keban syenitic intrusive is composed of porphyric syenite, monzonitic-syenite and monzonite. These rocks were emplaced in a shallow level and display a phaneritic texture with euhedral K-feldspar megacrystals (Kfms) with simple twinning and growth structures. These Kfms contain mafic and felsic inclusions. The fact that the inclusions are usually placed along the longer axis of the K-feldspar crystals and their...
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