February 2012
The impact of physical and socio-cultural factors on structuring vernacular dwellings in Eastern Black Sea Region
People live in their physical and social environments and they ought to arrange their relations via physical and social environments surrounding them to meet sheltering need, which is their essential requirement. When, especially, traditional residential architecture that represents historical and cultural backgrounds of societies is examined, the critical importance of human-environment relation is...
February 2012
EPC Class-1 Generation-2 radio frequency Identification (RFID)-based Malaysian University Communities
Radio frequency identification (RFID) technology has been recently adopted as an automated data management system in many areas, especially in supply chain management systems. However, research and studies on EPC Class-1 Generation-2 (Gen 2) RFID technology-based university communities are relatively few. Ultra high frequency (UHF) RFID technology has outperformed the barcode technology and high frequency...
February 2012
New programmable BiCMOS fuzzifier
It is clear that fuzzy logic is more compatible with analog circuit implementation compare to its digital mate. On the other hand being programmable is very important in various industrial implementations. Because of that this paper introduces a new method for implementing Membership function in fuzzy logic controllers. And a new high-speed analog fuzzification circuit was introduced for implementing this...
February 2012
Tool-chip temperature simulation on high pressure jet assisted machining of Ti6Al-V4
In this paper a numerical solution to predict cutting temperature in high pressure jet assisted turning of Ti6Al-V4 is presented. Temperature distribution is solved using finite difference method. Chip and tool temperatures are calculated under different cutting conditions such as variable cutting speed, feed and high pressure jet assisted cooling conditions. Chatter free stable cutting condition has been...
February 2012
Modeling of machining parameters of Ti-6Al-4V for electric discharge machining: A neural network approach
This paper presents the artificial intelligence model to predict the optimal machining parameters for Ti-6Al-4V through electrical discharge machining (EDM) using copper as an electrode and positive polarity of the electrode. The objective of this paper is to investigate the peak current, servo voltage, pulse on- and pulse off-time in EDM effects on material removal rate (MRR), tool wear rate (TWR)...
February 2012
Cycle analysis of in-cylinder heat transfer characteristics for hydrogen fueled engine
The overall heat transfer process within the in-cylinder for port injection hydrogen fueled internal combustion engine (H2ICE) was investigated. One-dimensional gas dynamics was used to describe the flow and heat transfer in the components of the engine model. The engine model was simulated with a variable injection timing, engine speed and equivalence ratio (φ). Simulation was executed for 60 deg ATDC...
February 2012
Assessment of groundwater quality in the rural areas of the North West Province, South Africa
The aim of this study is to assess the quality of the groundwater currently supplied to the rural communities of the North West Province. Groundwater samples collected from 100 boreholes in these rural areas were subjected to culture-based methods using selective media for the isolation of faecal and total coliform bacteria. Molecular analysis targeting 16S rRNA gene, and the restriction...
February 2012
Participation in breast cancer prevention: Assessing women’s knowledge and their participation in mammography in Tehran, Iran
A survey was carried out from July through October, 2009 to study the knowledge and women’s participation in mammography. A total of 400 women in urban areas of Tehran, Iran were randomly selected in this study. Although, the general knowledge of women was fairly good, they did not participate in mammography in the last 2 years. However, the mean score of the knowledge of women who were adherent to...
February 2012
Improving efficiency of inverse constitutive analysis of reinforced concrete flexural members
Adequate modeling of reinforced concrete (RC) cracking and, particularly post-cracking behavior, as one of the major sources of nonlinearity is an important and difficult task of deformation analysis. In smeared crack approach dealing with average cracking and strains, post-cracking effects can be modeled by stress-strain tension-stiffening relationships. Most of them were derived using test data of tension...
February 2012
Planning for fast DBT in distributed virtual execution environment
Virtualization via dynamic binary translation is essentially an emulator. The main advantage is that the CPU of the guest does not have to be the same as the CPU of the host. Although, dynamic binary translators (DBT) are gaining popularity and offering a promising future in the modern virtual executive environments, the requirements of DBTs’ processing and memory resources have...
February 2012
Friction stir spot welding parameters for polypropylene sheets
The friction stir spot welding (FSSW) method has four welding parameters: the welding tool rotational speed, tool plunge rate, tool plunge depth, the dwell time and tool retract delay. The effects of these welding parameters on joint formation and weld strength of polypropylene friction stir spot of welds were investigated. The effects of welding parameters on welding joint formation were determined by...
February 2012
Influence of different surface treatments on computer-aided design and manufacturing (CAD-CAM) zirconia frameworks
To evaluate the effect of grinding and sandblasting on the microstructure and flexural strength of partially sintered yttria stabilized tetragonal zirconia polycrystals (Y-TZP) ceramic, 60 bars from each material were randomly divided into four groups of fifteen. For each group, a different surface treatment was applied: grinding, sandblasting and grinding + sandblasting, and a control...
February 2012
Minimizing the loss probability in GI/M/3/0 queueing system with ordered entry
This study analyzed the queueing model with finite capacity, heterogeneous servers and ordered entry using the method of semi-Markov process. In this system, the customer, who arrives in the system, enters the server with the lowest index among the free servers. If all servers are busy, he leaves the system without receiving any service. Such customers are termed ‘lost customers’. The...
February 2012
Length-weight and length-length relationships of Aphanius dispar dispar (Rüppell, 1829) in Dalaki river, Bushehr, in south of Iran
Length-weight and length-length relationships were derived for Aphanius dispar dispar in Dalaki river (in south of Iran). Sampling was done between January to August of 2011 using scoop net. The b value in the length-weight relationship did not differ significantly between males and females (t-test, P>0.05) and this value was significantly higher than 3 (P<0.05). The relationship between total and...
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