Advanced Materials Research Vols. 463-464

Abstract: International increasing of petroleum and living cost and population, environmental problems, diminishingly fossil sources and world trend to energy technology respect to environmental safety and renewable energies are some reasons for most countries to use and investigate on renewable energies. In this regard this paper presents the state of geothermal energy in Iran. The geothermal activities in Iran started by Ministry Energy of Iran in 1975, research and survey indicate that Iran has substantial geothermal potential, specifically in the Sabalan Sahand (NW-Iran) and Damavand (N-Iran) region that are considerate prospects for electric power generation and direct uses. The Electric Power Research Center (EPRC) and Renewable Energy Organization of Iran (SUNA) were established to justify priorities of above mentioned region. As a result: Meshkinshahr and Sarein area in Sabalan region were proposed for electric and direct use respectively. Three deep exploration wells and two shallow reinjection wells were drilled at the Meshkinshahr geothermal field during 2003/2004 following detailed geo-scientific surface surveys. A preliminary resource assessment confirms the presence of a medium grade geothermal resource with temperatures within the drilled area up to 2500C and whit at least 5 Km2 of commercially exploitable resource available. SUNA is now moving forward to construct and commission the first geothermal power development both in Iran and the Middle East.

Abstract: Bangladesh is on the verge of facing energy crisis. According to the article 16.1 of Bangladesh Constitution fifty five percent of Bangladesh's inhabitants live without electricity, and the grid expansion rate to connect rural areas is threatened by the looming capacity shortage. It has very limited nonrenewable energy resources of its own. It is facing energy crisisand serious desertification problem in rural areas. These issues could be removed if renewable energy is used as aprimary source of energy in rural areas. Bangladeshisendowedwithplentifulsupply ofrenewablesourcesofenergy. Renewable energy like solar, wind, hydro can help to make electricity accessible to the isolated rural people as well as for low power demand. Outofthevarious renewable sources,solar is the most suitable form for Bangladesh.The solar home systems are now profitably and increasingly used for meeting the needs of electricity in remote and difficult areas in developed countries as well as in many developing countries. Potentiality of SHSs to reduce the present energy crisis in Bangladesh has been discussed in this paper

Abstract: In this article it is presented a general overview of the existing types of walking robots developed in the field of robotics research and the main advantages offered by legged locomotion in achieving a specific agility in crossing over uneven terrains. The aim of this article is to present the results of kinematical analysis developed upon a ten bar linkage designed in CAD in order to study the possibility of using this new type of mechanism for building a walking robot. It also illustrates the advantages of using CAD simulation tools for analyzing the path described by the end point of the foot during walking.

Abstract: This paper offers a decision making process based on terrorism risk. The purpose of the model is to support effective decision making in order to involve multiple potential targets and countermeasure alternatives. Because of the complexity of the issues and the posible catastrophic consequences of a terrorist attack, it is necesary to use an analytical tool to detect, assess, warn, response, and recovery the critical infrastructure. The perspective taken is that in order to establish priorities for threats and vulnerabilities and to identify and evaluate options for action.

Abstract: The paper shown one assisted method to construct simple and complex neural network and to simulate on-line them. By on-line simulation of some more important neural simple and complex network is possible to know what will be the influences of all network parameters like the input data, weight, biases matrix, sensitive functions, closed loops and delay of time. There are shown some important neurons type, transfer functions, weights and biases of neurons, and some complex layers with different type of neurons. By using the proper virtual LabVIEW instrumentation in on-line using, were established some influences of the network parameters to the number of iterations before canceled the mean square error to the target. Numerical simulation used the proper teaching law and proper virtual instrumentation. In the optimization step of the research on used the minimization of the error function between the output and the target.

Abstract: This paper deals with the design of a new type of proportional pneumatic actuator developed by the authors. The working principle and the design and built of the experimental model are presented. The stand used to determine the working characteristics of the experimental model are also presented.

Abstract: The paper is structured in two parts. In the first part are presented some kinematics schemes used to the positioning and control systems, from the harvester machine structure, hydraulic excavators. In generally these mechanisms have two or three degree of mobility. It is presented those mechanism structures upon the base module. In the second part is presented the 3D model and the kinematical analysis results for one plane excavator mechanism, with the help of MSC.Adams computer program.

Abstract: This study selected Sichuan Province of China's energy production and consumption province as the regional research object. It studied energy utilization efficiency in industrial sectors from output of energy consumption, energy utilization technical efficiency, pure technical efficiency, and change index of energy utilization efficiency by the data of energy consumption and GDP. The output of energy consumption and energy utilization efficiency were big difference in industrial sectors. It provided the basis of taking different measures according to the different characteristic in industrial sectors while reducing energy consumption and energy conservation

Abstract: In Thailand pickup truck is the most popular vehicle both for individual and organization. Manufacturing sector also uses pickup trucks to delivery products. Empty truck run is a major problem for transportation sector which increases transportation cost and inefficient use of energy. This paper attempts to present the information gathered from the survey and to provide general characteristics of pickup truck runs in manufacturing sector. More than 95 percent of backhaul trips using pickup truck were empty. Information of truck trips from each factory is the key point to lower empty miles by joint transportation processes. The survey showed that if the information of empty truck runs was shared and the matching of truck trips was carried out, a total empty mile of 15,161 kilometers out of 220 pairs of matching backhaul trips, or 15.36 percent of total truck runs, could be saved. Consequently, the cost of product will be reduced.