Akbar Doustaregan - Academia.edu (original) (raw)

Papers by Akbar Doustaregan

A novel approach to locate the gas transmission pipeline interconnections by considering the auto... more A novel approach to locate the gas transmission pipeline interconnections by considering the automatic line break valves when a rupture occurred and by considering consumers covering introduced. Proposed method is general to use, that by taking into account the efficient parameters, it is possible to apply it. Hence the results could be a good guide for pipeline engineers and operators for finding the best place for ŝŵƉůĞŵĞŶƟŶŐŝŶƚĞƌĐŽŶŶĞĐƟŽŶƐĂŶĚŽƉĞƌĂƟŶŐƚŚĞŵ͘WŝƉĞ>ŝŶĞ^ƚƵĚŝŽϯ͘Ϯ͘Ϭ͘ϲŝƐƵƐĞĚĨŽƌ simulation. Keywords: Pipeline Interconnections, Line Break Valve (LBV), Safety of gas transmission network, Pipeline Studio.

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A novel low-power and high-performance Standard Ternary Inverter (STI) for CMOS technology is pro... more A novel low-power and high-performance Standard Ternary Inverter (STI) for CMOS technology is proposed in this paper. This inverter could be used as a fundamental block for designing other ternary basic logic gates. This circuit consists of only MOS transistors and capacitors without any area consuming resistors in its structure. Another great advantage of this design in comparison with the other designs, introduced before, is the elimination of the static power dissipation, which is very important in nano scale CMOS and leads to less power consumption. The proposed design has been simulated, using Synopsys HSPICE tool with 90nm CMOS technology. The simulation results demonstrate the superiority of the presented design with respect to other conventional designs in terms of power consumption and performance.

An intelligence system used electronic chips and transmitter-receiver for improving, correcting a... more An intelligence system used electronic chips and transmitter-receiver for improving, correcting and monitoring over truly operation of line break detector in automatic valves has been introduced. Automatic valves Line break detector systems send an alarm to control center while detecting a break. Control center decides about right breaking by analyzing the received data from locally electronic systems in gas pipeline amplifying station, city gate and power station and comparing to that received from automatic valves then decides and sends relative order accordingly.

A new hardware-friendly mathematical method for realizing low-complexity universal Adder cells as... more A new hardware-friendly mathematical method for realizing low-complexity universal Adder cells as well as its efficient hardware implementations is proposed in this paper. This method can be used in binary logic, Multiple-Valued Logic (MVL) and specifically digital fuzzy systems. The proposed mathematical method can be implemented in both voltage and current modes. The voltage-mode hardware implementation is very simple and is based on input capacitors and MVL or analog inverters and buffers. In addition, the current-mode hardware implementation leads to simple and efficient structures for digital fuzzy systems. Simulations are carried out for ternary logic as well as for digital fuzzy logic with high precision by using 180 nm standard CMOS technology and at 1.8 V supply voltage. Simulation results demonstrate that the proposed designs have excellent functionality and are very suitable for implementing MVL and fuzzy arithmetic circuits.

Results of a group of simulations about the effect of pipeline interconnections on the operation ... more Results of a group of simulations about the effect of pipeline interconnections on the operation of Automatic Line Break Valves (LBVs) after a conceivable rupture is shown. Due the LBVs protect the gas transmission network against unwanted occurrences in pipelines, e.g. blasts, any malfunction will affect on the safety on network. All simulations are done by means of PiƉĞůŝŶĞƐƚƵĚŝŽϯ͘Ϯ͘Ϭ͘ϲ which show that despite many applications, interconnections has negative effects on network safety when a blast occurs.

A novel approach to locate the gas transmission pipeline interconnections by considering the auto... more A novel approach to locate the gas transmission pipeline interconnections by considering the automatic line break valves when a rupture occurred and by considering consumers covering introduced. Proposed method is general to use, that by taking into account the efficient parameters, it is possible to apply it. Hence the results could be a good guide for pipeline engineers and operators for finding the best place for ŝŵƉůĞŵĞŶƟŶŐŝŶƚĞƌĐŽŶŶĞĐƟŽŶƐĂŶĚŽƉĞƌĂƟŶŐƚŚĞŵ͘WŝƉĞ>ŝŶĞ^ƚƵĚŝŽϯ͘Ϯ͘Ϭ͘ϲŝƐƵƐĞĚĨŽƌ simulation. Keywords: Pipeline Interconnections, Line Break Valve (LBV), Safety of gas transmission network, Pipeline Studio.

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A novel low-power and high-performance Standard Ternary Inverter (STI) for CMOS technology is pro... more A novel low-power and high-performance Standard Ternary Inverter (STI) for CMOS technology is proposed in this paper. This inverter could be used as a fundamental block for designing other ternary basic logic gates. This circuit consists of only MOS transistors and capacitors without any area consuming resistors in its structure. Another great advantage of this design in comparison with the other designs, introduced before, is the elimination of the static power dissipation, which is very important in nano scale CMOS and leads to less power consumption. The proposed design has been simulated, using Synopsys HSPICE tool with 90nm CMOS technology. The simulation results demonstrate the superiority of the presented design with respect to other conventional designs in terms of power consumption and performance.

An intelligence system used electronic chips and transmitter-receiver for improving, correcting a... more An intelligence system used electronic chips and transmitter-receiver for improving, correcting and monitoring over truly operation of line break detector in automatic valves has been introduced. Automatic valves Line break detector systems send an alarm to control center while detecting a break. Control center decides about right breaking by analyzing the received data from locally electronic systems in gas pipeline amplifying station, city gate and power station and comparing to that received from automatic valves then decides and sends relative order accordingly.

A new hardware-friendly mathematical method for realizing low-complexity universal Adder cells as... more A new hardware-friendly mathematical method for realizing low-complexity universal Adder cells as well as its efficient hardware implementations is proposed in this paper. This method can be used in binary logic, Multiple-Valued Logic (MVL) and specifically digital fuzzy systems. The proposed mathematical method can be implemented in both voltage and current modes. The voltage-mode hardware implementation is very simple and is based on input capacitors and MVL or analog inverters and buffers. In addition, the current-mode hardware implementation leads to simple and efficient structures for digital fuzzy systems. Simulations are carried out for ternary logic as well as for digital fuzzy logic with high precision by using 180 nm standard CMOS technology and at 1.8 V supply voltage. Simulation results demonstrate that the proposed designs have excellent functionality and are very suitable for implementing MVL and fuzzy arithmetic circuits.

Results of a group of simulations about the effect of pipeline interconnections on the operation ... more Results of a group of simulations about the effect of pipeline interconnections on the operation of Automatic Line Break Valves (LBVs) after a conceivable rupture is shown. Due the LBVs protect the gas transmission network against unwanted occurrences in pipelines, e.g. blasts, any malfunction will affect on the safety on network. All simulations are done by means of PiƉĞůŝŶĞƐƚƵĚŝŽϯ͘Ϯ͘Ϭ͘ϲ which show that despite many applications, interconnections has negative effects on network safety when a blast occurs.