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489 results on '"Ghodsi, Mohammad"'

51. Unit Covering in Color-Spanning Set Model

Author

Emamjomeh-Zadeh, Ehsan, Ghodsi, Mohammad, Homapour, Hamid, Seddighin, Masoud, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Rahman, M. Sohel, editor, and Tomita, Etsuji, editor

Published
2015
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52. A Robust Controller Design for Load Frequency Control in Islanded Microgrid Clusters

Author

Ghodsi, Mohammad Reza, Tavakoli, Alireza, and Samanfar, Amin

Subjects
Article Subject, Microgrid, Load frequency control, µ-synthesis, virtual inertia control, Modeling and Simulation, Energy Engineering and Power Technology, Electrical and Electronic Engineering
Abstract

In this paper, virtual inertia control (VIC) is suggested to increase the frequency stability in islanded microgrid (MG) clusters. The aim of the suggested control method is to improve damping characteristic of MG clusters including different distributed generations (DGs). The optimal/robust values of the VIC parameters are tuned by aμ-synthesis robust control method. The proposed robust/optimal VIC-based control method is confirmed by various scenarios. Computer simulation and hardware-in-the-loop (HIL) tests are used to show the effectiveness of the suggested method in increasing the damping of the power system. Clearly, different characteristics of the dynamic responses and the results show the practicality of the suggested robust VIC.e

Published
2022

54. Where Quantum Complexity Helps Classical Complexity

Author

Vaezi, Arash, Kazemi, Seyed Mohammad Hussein, Noghrehy, Negin Bagheri, Kazemi, Seyed Mohsen, Movaghar, Ali, Ghodsi, Mohammad, Vaezi, Arash, Kazemi, Seyed Mohammad Hussein, Noghrehy, Negin Bagheri, Kazemi, Seyed Mohsen, Movaghar, Ali, and Ghodsi, Mohammad

Abstract

Scientists have demonstrated that quantum computing has presented novel approaches to address computational challenges, each varying in complexity. Adapting problem-solving strategies is crucial to harness the full potential of quantum computing. Nonetheless, there are defined boundaries to the capabilities of quantum computing. This paper concentrates on aggregating prior research efforts dedicated to solving intricate classical computational problems through quantum computing. The objective is to systematically compile an exhaustive inventory of these solutions and categorize a collection of demanding problems that await further exploration.

Published
2023

55. Measurement of Gas Flow Using Orifice Plate Method in Ahvaz Ramin Power Plant

Author

Ghodsi, Mohammad Reza

Abstract

The consumption of gas for thermal power plants is prioritized due to economic efficiency, in terms of reducing the costs of operation and repairs of power plant units, increasing the reliability of operation and reducing environmental consequences. Measuring and knowing the exact amount of gas consumption and calculating the efficiency of power plants in these sensitive conditions, by various types of precision instrument flow meters, is one of the main challenges. The main purpose of this research is to fully describe the installation and operation of gas flow meters according to the ISO-5167 standard located in the Ahvaz Ramin Power Plant, as well as to review and study their efficiency, using real operating data, which Validation and effectiveness, a comparison has been made between orifice plate flow meters used in gas units with turbine flow meters in CGS pressure reduction station and power plant gas station, which are widely used in various industries. The results show that the values of orifice plate flow meters have higher accuracy and accuracy, as well as less failure, and the maintenance costs of these flow meters are much lower than the turbine type, and the installation of this method is easier.

Published
2023
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56. Optimal Strategy for Walking in Streets with Minimum Number of Turns for a Simple Robot

Author

Tabatabaei, Azadeh, Ghodsi, Mohammad, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Zhang, Zhao, editor, Wu, Lidong, editor, Xu, Wen, editor, and Du, Ding-Zhu, editor

Published
2014
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57. Rent Division Among Groups

Author

Ghodsi, Mohammad, primary, Latifian, Mohamad, additional, Mohammadi, Arman, additional, Moradian, Sadra, additional, and Seddighin, Masoud, additional

Published
2018
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62. The Utility of Blood Based Biomarkers in Detecting Neurological Complications of COVID‐19 in Critically Ill Patients

Author

Cooper, Jennifer G, primary, Stukas, Sophie K, additional, Grey, Rebecca, additional, Ghodsi, Mohammad, additional, Ahmed, Nyra, additional, Hoiland, Ryan, additional, Thiara, Sonny, additional, Foster, Denise, additional, Harper, Megan, additional, Panenka, William J, additional, Silverberg, Noah Noah, additional, Stoessl, Jon A., additional, Sossi, Vesna, additional, Sekhon, Mypinder S, additional, and Wellington, Cheryl L, additional

Published
2022
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65. Approximating Edit Distance in Truly Subquadratic Time: Quantum and MapReduce.

Author

BOROUJENI, MAHDI, EHSANI, SOHEIL, GHODSI, MOHAMMAD, HAJIAGHAYI, MOHAMMADTAGHI, and SEDDIGHIN, SAEED

Subjects
ALGORITHMS, APPROXIMATION algorithms, PARALLEL algorithms
Abstract

The edit distance between two strings is defined as the smallest number of insertions, deletions, and substitutions that need to be made to transform one of the strings to another one. Approximating edit distance in subquadratic time is "one of the biggest unsolved problems in the field of combinatorial pattern matching" [37]. Our main result is a quantum constant approximation algorithm for computing the edit distance in truly subquadratic time. More precisely, we give an O(n1.810) quantum algorithm that approximates the edit distance within a factor of 3. We further extend this result to an O(n1.708) quantum algorithm that approximates the edit distance within a larger constant factor. Our solutions are based on a framework for approximating edit distance in parallel settings. This framework requires as black box an algorithm that computes the distances of several smaller strings all at once. For a quantum algorithm, we reduce the black box to metric estimation and provide efficient algorithms for approximating it.We further show that this framework enables us to approximate edit distance in distributed settings. To this end, we provide a MapReduce algorithm to approximate edit distance within a factor of 1+∈, with sublinearly many machines and sublinear memory. Also, our algorithm runs in a logarithmic number of rounds. [ABSTRACT FROM AUTHOR]

Published
2021
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67. Using Instrumentation Magnetic Level Gauge to Measure the Local Level of Industrial Tanks (Case Study of Ramin Power Plant)

Author

Ghodsi, Mohammad Reza

Subjects
Instrumentation and Control, Local Measurement of Tank level, Pressure Difference Gauge, Bourdon Tube Pressure Gauge, Magnetic Level Gauge, Ramin Power Plant
Abstract

Measuring and observing the local level of industrial reservoirs is always considered one of the most important issues in all industries, to the extent that different methods are used in the field of precision instruments. On the other hand, with the passage of time, due to the wear and tear of old local level gauges and the lifespan of their parts, these devices are always faced with a decrease in measurement accuracy as well as an increase in equipment failure and inefficiency. The focus of this article is on the local measurement of the level, compared to the centralized measurement located in the control room. The results show that, in addition to the local reading of the tank level by the operators, it is possible to send signals and monitor the values in the control room. Currently, a number of magnetic level gauges have been successfully installed and operated on oil tanks, high pressure heaters, deaerators and boilers in Ahvaz Electricity Production Management Company - Ramin Power Plant. For confirmation and validation, the results of this research were compared with two samples of pressure difference gauge and Borden tube pressure gauge. Simplicity and ease of installation and the ability to display high-resolution local and send electrical signals to the steering room are the main features of the magnetic level gauge.

Published
2022
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68. Walking in Streets with Minimal Sensing

Author

Tabatabaei, Azadeh, Ghodsi, Mohammad, Hutchison, David, Serieseditor, Kanade, Takeo, Serieseditor, Kittler, Josef, Serieseditor, Kleinberg, Jon M., Serieseditor, Mattern, Friedemann, Serieseditor, Mitchell, John C., Serieseditor, Naor, Moni, Serieseditor, Nierstrasz, Oscar, Serieseditor, Pandu Rangan, C., Serieseditor, Steffen, Bernhard, Serieseditor, Sudan, Madhu, Serieseditor, Terzopoulos, Demetri, Serieseditor, Tygar, Doug, Serieseditor, Vardi, Moshe Y., Serieseditor, Weikum, Gerhard, Serieseditor, Widmayer, Peter, editor, Xu, Yinfeng, editor, and Zhu, Binhai, editor

Published
2013
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69. α-Visibility

Author

Ghodsi, Mohammad, Maheshwari, Anil, Nouri, Mostafa, Sack, Jörg-Rüdiger, Zarrabi-Zadeh, Hamid, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Fomin, Fedor V., editor, and Kaski, Petteri, editor

Published
2012
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70. On the Non-progressive Spread of Influence through Social Networks

Author

Fazli, MohammadAmin, Ghodsi, Mohammad, Habibi, Jafar, Jalaly Khalilabadi, Pooya, Mirrokni, Vahab, Sadeghabad, Sina Sadeghian, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Fernández-Baca, David, editor

Published
2012
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71. A Heuristic Homotopic Path Simplification Algorithm

Author

Daneshpajouh, Shervin, Ghodsi, Mohammad, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Murgante, Beniamino, editor, Gervasi, Osvaldo, editor, Iglesias, Andrés, editor, Taniar, David, editor, and Apduhan, Bernady O., editor

Published
2011
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72. White Space Regions

Author

Ehsani, Shayan, Fazli, MohammadAmin, Ghodsi, Mohammad, Safari, MohammadAli, Saghafian, Morteza, Tavakkoli, Mohammad, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Černá, Ivana, editor, Gyimóthy, Tibor, editor, Hromkovič, Juraj, editor, Jefferey, Keith, editor, Králović, Rastislav, editor, Vukolić, Marko, editor, and Wolf, Stefan, editor

Published
2011
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73. Optimal Iterative Pricing over Social Networks (Extended Abstract)

Author

Akhlaghpour, Hessameddin, Ghodsi, Mohammad, Haghpanah, Nima, Mirrokni, Vahab S., Mahini, Hamid, Nikzad, Afshin, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Saberi, Amin, editor

Published
2010
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74. Equilibrium Pricing with Positive Externalities (Extended Abstract)

Author

Anari, Nima, Ehsani, Shayan, Ghodsi, Mohammad, Haghpanah, Nima, Immorlica, Nicole, Mahini, Hamid, Mirrokni, Vahab S., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Saberi, Amin, editor

Published
2010
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76. α-Visibility

Author

Ghodsi, Mohammad, Maheshwari, Anil, Nouri-Baygi, Mostafa, Sack, Jörg-Rüdiger, and Zarrabi-Zadeh, Hamid

Published
2014
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77. Sorting on OTIS-Networks

Author

Akhgari, Ehsan, Ziaie, Alireza, Ghodsi, Mohammad, Sarbazi-Azad, Hamid, editor, Parhami, Behrooz, editor, Miremadi, Seyed-Ghassem, editor, and Hessabi, Shaahin, editor

Published
2009
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79. Kinetic Polar Diagram

Author

Nouri Bygi, Mojtaba, Chitforoush, Fatemeh, Yazdandoost, Maryam, Ghodsi, Mohammad, Sarbazi-Azad, Hamid, editor, Parhami, Behrooz, editor, Miremadi, Seyed-Ghassem, editor, and Hessabi, Shaahin, editor

Published
2009
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80. Space–Query-Time Tradeoff for Computing the Visibility Polygon

Author

Nouri, Mostafa, Ghodsi, Mohammad, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Deng, Xiaotie, editor, Hopcroft, John E., editor, and Xue, Jinyun, editor

Published
2009
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82. Visiting a Polygon on the Optimal Way to a Query Point

Author

Khosravi, Ramtin, Ghodsi, Mohammad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Preparata, Franco P., editor, Wu, Xiaodong, editor, and Yin, Jianping, editor

Published
2008
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85. Weak Visibility of Two Objects in Planar Polygonal Scenes

Author

Nouri, Mostafa, Zarei, Alireza, Ghodsi, Mohammad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Gervasi, Osvaldo, editor, and Gavrilova, Marina L., editor

Published
2007
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86. RAQNet: A Topology-Aware Overlay Network

Author

Mirrezaei, Seyed Iman, Shahparian, Javad, Ghodsi, Mohammad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bandara, Arosha K., editor, and Burgess, Mark, editor

Published
2007
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89. SkipTree: A Scalable Range-Queryable Distributed Data Structure for Multidimensional Data

Author

Alaei, Saeed, Toossi, Mohammad, Ghodsi, Mohammad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Deng, Xiaotie, editor, and Du, Ding-Zhu, editor

Published
2005
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91. RAQ: A Range-Queriable Distributed Data Structure

Author

Nazerzadeh, Hamid, Ghodsi, Mohammad, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Vojtáš, Peter, editor, Bieliková, Mária, editor, Charron-Bost, Bernadette, editor, and Sýkora, Ondrej, editor

Published
2005
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