October 2011
Comparison of damping characteristics of polymer-stell and polymer-al composite structure
Composite structure of polymer-steel is generally used as vibration damping at industrial applications. This structure is usually three layers as steel-polymer-steel. This study presents an alternative test model besides a real model of vibration damping. The test model is a polymer-Al composite structure and the real model is a polymer-stell composite structure. F = 1000 N harmonic load is applied on...
October 2011
Extraction of chlorinated aromatic hydrocarbons using supercritical fluid
This study aims to examine a variety of interrelated parameters including pressure, temperature and velocity of fluid using Supercritical Fluid Extraction (SFE) of chlorinated aromatic hydrocarbons. The optimum parameters for the supercritical fluid extraction of chlorinated aromatic hydrocarbons were determined and compared with the ‘soxhlet’ extraction. The results revealed that the optimal...
October 2011
Investigation of using natural zeolite in brake pad
October 2011
Euphorbia tirucalli L. (Euphorbiaceae) – The miracle tree: Current status of available knowledge
Euphorbia tirucalli is one of the most important tree Euphorbias known worldwide for its many uses. Endemic to tropical Africa where it often grows wild, it is usually planted for boundary demarcation but also as a live fence around compounds, shrines and kraals due to its ability to withstand extreme aridity and possession of low herbivore pressure. E. tirucalli has white latex which is...
October 2011
Fruit drying process: Analysis, modeling and simulation
The current work presents an investigation on fruit drying system. The effect of the operating parameters on the quality of products and the efficiency of the system is studied. The method is based on a new model which was developed to study the fruit drying system performance considering equilibrium moisture content of fruit, humidity of dryer atmosphere, temperature of dryer atmosphere and air flow. The...
October 2011
Recursive identification of Hammerstein ARMAX model with general discontinuous nonlinearity
This paper deals with the recursive parameter identification of the Hammerstein ARMAX (HARMAX) model with General model of discontinuous and asymmetric Nonlinearity (GNL) containing hysteresis, saturation, preload and dead-zone. This model contains different parameters the choice of which may generate several different nonlinearities. The linear and nonlinear structures are known, the linear block parameters...
October 2011
Case study of landslide in the Karviná region using resistivity tomography measurements
The paper deals with the slide of Doubrava Vrchovec that occurs in district of Karviná in Doubrava Village. The slope deformation in this area was reactivated by mining effects and by precipitation. The studied area is the Ostrava-Karviná coalfield, situated in the Northeast of the Czech Republic. Objective area is situated in efficient distance of mining activity of both mining fields. Great...
October 2011
Hatching performance and yolk sac absorption of Abant trout (Salmo abanticus, T., 1954)
Salmo abanticus is a native to Lake Abant and it is known to be endemic to Turkey. The purpose of this study was to determine hatching performance, body and yolk weight at hatching, the growth rate during the yolk absorption and yolk conversion efficiency of Abant trout (S. abanticus, T., 1954) larvae, and the relationships between length, total wet weight, dry yolk body weights of alevins and...
October 2011
Security measures for VoIP application: A state of the art review
Voice over internet protocol (VoIP) is being widely used, while the integration of voice and data provide several opportunities. Lower cost and more flexibility are the main advantages of the VoIP which derived the attention of the enterprises to it. Unfortunately in the other extreme, some security issues may come across with the extensive use of VoIP. The purpose of this review paper is to encourage...
October 2011
Development of the 3-phase 4-wire voltage sag generator
This paper presents development of 3-phase 4-wire voltage sag generator. Voltage sag generator is based on 3-phase 4-wire inverter in order to handle the neutral current caused by the unbalance and non-linear load. The controller used for this voltage sag generator is a low-cost dsPIC microcontroller. The 3 kVA voltage sag generator has been implemented. The paper also describes software to simulate and create...
October 2011
An economic distant fetal electrocardiogram monitoring system
Fetal electrocardiogram (FECG) signal contains potentially precise information that could assist clinicians in making more appropriate and timely decisions during pregnancy period and labour. Fetal condition may change abruptly during the pregnancy period. Therefore, continuous FECG monitoring will ease the fetal well-being. This paper describes an implementation of an economical real time distant...
October 2011
Screening of genomic DNA and analysis of heavy metals to identify mutations in the genes of Ciona intestinalis (Linnaeus, 1767) collected from the Mediterranean Sea - Alexandria, Egypt
Ascidians are particularly vulnerable to hazardous accumulation of heavy metals in the marine ecosystem. Specimen of Ciona intestinalis were collected from three localities of the Mediterranean Sea of Alexandria in July 2009. Animals were dissected and frozen at -20°C. RAPD–PCR analysis showed natural differences or polymorphism among individuals of Ciona intestinalis, so...
October 2011
Investigating the effect of iron and zinc enriched vermicompost on growth and nutritional status of peach trees
Micronutrients deficiency especially iron and zinc in orchard trees is a common problem of calcareous soils. Application of mineral sources of these elements has no performance in alkaline soils. Because of high cost, consumption of synthetic chelats is limited in the country. To determine the effect of compost and iron and zinc enriched vermicomposts on iron and zinc nutritional status of peach tress, an...
October 2011
Effect of tetrandrine on the expression of leptin (LP) and vascular endothelial growth factor (VEGF) in corneal neovascularization of rats
To investigate the effect of tetrandrine (Tet) on the expression of leptin (LP) and vascular endothelial growth factor (VEGF) in corneal neovascularization (CNV). CNV model was made by alkaline burning. The expressions of LP and VEGF in CNV before and after using Tet were detected slit lamp biomicroscopy, photography and immunohistochemical staining. Immunohistochemistry showed LP was observed in the...
October 2011
Impact of leukocytapheresis on the coagulation and lung injury in the endotoxemia dogs
To explore the role of leucocyte in the coagulation and fibrinolysis system in endotoxin-induced lung injury, the impact of peripheral leukocytapheresis (LCAP) on the coagulation and fibrinolysis system, and the lung injury in the endotoxemia dogs were observed. Endotoxemia was introduced in dogs with lipopolysaccharidea (LPS, 2 mg/kg). A total of 30 dogs were randomly assigned into LPS group (dogs were...
October 2011
Spotting pattern features in the brown trout (Salmo trutta macrostigma, T., 1954) population
This study aimed to define spotting pattern features useful to discriminate wild from stocked brown trout (Salmo trutta macrostigma T., 1954) in Turkey. 136 trout captured from Munzur Stream in Tunceli, Turkey. Captured fish were measured 20.49±6.31 cm, as a standard length. It characterized the number of red spots, above and below the lateral line, the number of black spots on operculum and the number...
October 2011
Schiff base liquid crystals with terminal iodo group: Synthesis and thermotropic properties
A new homologous series of Schiff base esters comprising a terminal iodo substituent was studied. The iodo substituent contributes to the molecular polarizability, thus, affecting intermolecular interactions, hence, resulting in smectic polymorphism. The mesomorphic properties were studied using differential scanning calorimeter (DSC) and polarizing optical microscope (POM). Whilst the lower...
October 2011
Arthroscopic reconstruction of anterior cruciate ligament with the remnant-preserving technique
The purpose of this paper was to investigate the results of arthroscopic of anterior cruciate ligament (ACL) reconstruction with the remnant-preserving technique and evaluate its clinical significance. A total of ACL injuries in 147 patients confirmed by arthroscopy, including partial disruption of ACL in 45 cases, complete disruption of ACL in 66 cases and laxity of ligament in 36 cases were included in this...
October 2011
Determining seam profile tracking of very narrow butt welding on sheet metal
In this study, a welding manipulator has been designed in order to perform the butt-welding operation automatically of cylindrical sheet metals used in natural gas and heating systems. After the design procedure, the elements related to welding manipulator desired, has been defined and the test apparatuses was manufactured. In order to obtain profile of surface that will be welded on sheet metal, 2D laser...
October 2011
Design of a hybrid type-2 fuzzy logic/proportional-integral controller for single-phase three-wire inverter system
This paper presents the design of a hybrid type-2 fuzzy logic (T2FL) / proportional-integral (PI) controller proposed to solve harmonic and balancing problems in the output voltage of a single-phase three-wire inverter system. The inverter system consists of a converter circuit with three legs and an auxiliary LC filter, and a voltage-based feedback control algorithm including a differential-mode and...
October 2011
A replacement series evaluation of competition between rice (Oryza sativa L.) and rice barnyardgrass (Echinochloa oryzicola Vasing)
To evaluate the competitive ability of two rice cultivars with rice barnyardgrass (ECPH), a pot experiment was carried out in a replacement series study. Treatments were arranged as a factorial with two cultivars (Hashemi, and Deylamani) and five rice: rice barnyardgrass mixture proportions (8:0, 6:2, 4:4, 2:6 and 0:8). The experiment was conducted as a randomized complete block design with three...
October 2011
Design of a multi-level fuzzy linear regression model for forecasting: A case study of Iran
Linear regression has been widely used for many years to forecast various socio-economic variables in marketing, management, sales, energy and so on. Demand and price are commonly estimated by means of regression models. However, where there is high uncertainty in the model, fuzzy regressions are applied. In this paper, a fuzzy-based approach is applied for transport energy demand forecasting using...
October 2011
A new evolutionary algorithm based on data sharing concept for solving optimization problems
In recent decades, evolutionary algorithms, as a powerful optimization tool, have been used in various areas of studies and applications. Some special features of these methods including vast ranges of applications, ease of use and their ability to yield results close to the real optimal solutions make them successful and popular. In optimization algorithms, despite lots of attentions paid to humans and other...
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