Results 201 to 210 of about 950,441 (251)
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2013
Chapter 2 provides details of passive load-pull systems and impedance tuning and synthesis approaches. Primarily two types of passive tuners—the electromechanical tuner (EMT) and the electronic tuner (ETS)—are employed in load-pull systems. This chapter presents a thorough discussion on the theory and concepts of both these tuners and provides in-depth
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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Chapter 2 provides details of passive load-pull systems and impedance tuning and synthesis approaches. Primarily two types of passive tuners—the electromechanical tuner (EMT) and the electronic tuner (ETS)—are employed in load-pull systems. This chapter presents a thorough discussion on the theory and concepts of both these tuners and provides in-depth
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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A methodology to customize pull control systems
Journal of the Operational Research Society, 2001Summary: The objective of this paper is to develop a methodology for customizing pull control systems, replacing traditional control systems such as Kanban, Conwip, and Base Stock. The basic principle is to start with a pull control system that connects each stage of a given production line with each preceding stage; next, the optimization of the ...
Gaury, E. +2 more
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2013
Chapter 6 presents the fundamental concept of an active envelope load-pull (ELP) system. Subsequently, its characteristics, realization and design are presented and discussed. The calibration procedure of the ELP system is also described in detail. The harmonic ELP and its characteristics, which lead to some unique measurements and investigations, are ...
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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Chapter 6 presents the fundamental concept of an active envelope load-pull (ELP) system. Subsequently, its characteristics, realization and design are presented and discussed. The calibration procedure of the ELP system is also described in detail. The harmonic ELP and its characteristics, which lead to some unique measurements and investigations, are ...
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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2011
Data broadcasting has emerged as an efficient way for the dissemination of information over asymmetric wireless environments where the needs of the various users of the data items are usually overlapping. In such environments, data broadcasting stands to be an efficient solution since the broadcast of a single information item is likely to satisfy a ...
Petros Nicopolitidis +2 more
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Data broadcasting has emerged as an efficient way for the dissemination of information over asymmetric wireless environments where the needs of the various users of the data items are usually overlapping. In such environments, data broadcasting stands to be an efficient solution since the broadcast of a single information item is likely to satisfy a ...
Petros Nicopolitidis +2 more
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Customer Service in Pull Production Systems
Operations Research, 1992In this paper, we consider the issue of customer service in pull production systems. We first discuss the meaning of customer service in a pull system and contrast it to push systems. We also discuss both pure and hybrid pull systems that are found in the literature.
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Proactive Pull Systems with Applications
SSRN Electronic Journal, 2019The concept of pull production systems, such as kanban and CONWIP (Constant-Work-In-Progress), has been proposed for a long time. Although they have been implemented at some production systems with positive outcomes, some failure cases have also been reported.
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2013
Chapter 5 presents the theory and critical issues associated with highly reflective load-pull systems required for the characterization and measurement of high-power transistor devices. The theory and analysis of the impedance transforming network between the device under test (DUT) and the load-pull system, which is needed to overcome problems ...
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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Chapter 5 presents the theory and critical issues associated with highly reflective load-pull systems required for the characterization and measurement of high-power transistor devices. The theory and analysis of the impedance transforming network between the device under test (DUT) and the load-pull system, which is needed to overcome problems ...
Fadhel M. Ghannouchi, Mohammad S. Hashmi
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Pull-Type Manufacturing Systems
1997In Chapters 4 and 5, we studied multistage, push-type manufacturing systems in the context of production lines. In push-type systems, the production schedule is decided based on the demand forecasts, in an upstream part of the system. That is, attention is not given to the immediate market response which may have a significant impact on the finished ...
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Optimal control of pull manufacturing systems
IEEE Transactions on Automatic Control, 1995Summary: We consider the problem of optimal control of pull manufacturing systems. We study a fluid model of a flow shop, with buffer holding costs nondecreasing along the route. The system is subject to a constant exogenous demand, thus incurring additional shortfall/inventory costs. The objective is to determine the optimal control for the production
Perkins, James R., Kumar, P. R.
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A broadband envelope load pull system
High Frequency Postgraduate Student Colloquium, 2005, 2006The paper presents an active envelope load-pull system for the active control of load impedance over a bandwidth of approximately 100 MHz, hence extending the employment of active load pull systems to modulated signals. As a result, the load-pull system can be also employed for linearity investigations of non-linear devices, which is crucial for ...
O. Al Kharji +3 more
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