The Mississippi State University of Agriculture and Applied Science, commonly known as Mississippi State University , is a land-grant university located in Oktibbeha County, Mississippi, United States, partially in the town of Starkville and partially in an unincorporated area. Mississippi State, Mississippi, is the official designation for the area that encompasses the university.It is classified as a "comprehensive doctoral research university with very high research activity" by the Carnegie Foundation. The university has campuses in Starkville , Meridian, Biloxi, and Vicksburg, Mississippi. Wikipedia.
Rajala S.A.,Mississippi State University
Proceedings of the IEEE | Year: 2012
Over the past 20 years, the world has seen significant advances in and adoption of new technology, political events that have led to the opening of formerly closed societies, economic policies that have encouraged free trade, and the growth in multinational companies. These changes have resulted in a world with increased connectedness and interdependencies and a globalization of the workforce. This paper discusses the impact globalization has had on engineering and engineering education. © 2012 IEEE.
Brown L.R.,Mississippi State University
Current Opinion in Microbiology | Year: 2010
Two-thirds of the oil ever found is still in the ground even after primary and secondary production. Microbial enhanced oil recovery (MEOR) is one of the tertiary methods purported to increase oil recovery. Since 1946 more than 400 patents on MEOR have been issued, but none has gained acceptance by the oil industry. Most of the literature on MEOR is from laboratory experiments or from field trials of insufficient duration or that lack convincing proof of the process. Several authors have made recommendations required to establish MEOR as a viable method to enhance oil recovery, and until these tests are performed, MEOR will remain an unproven concept rather than a highly desirable reality. © 2010 Elsevier Ltd. All rights reserved.
Karimi-Ghartemani M.,Mississippi State University
IEEE Transactions on Power Electronics | Year: 2013
The three-phase synchronous reference frame phase-locked loop (3 φ-SRF-PLL) is widely used in three-phase power electronics and power system applications thanks to its desirable performance and its simple yet robust structure. Inspired from the 3 φ-SRF-PLL and due to the increasing interest in single-phase applications, multiple single-phase SRF-PLL (1φ-SRF-PLL) versions have also been proposed in the recent years. This paper presents a unifying approach to the understanding and analysis of the 1 φ-SRF-PLLs. This paper integrates several 1 φ-SRF-PLLs having apparently different structures into a single structure. The approach is much useful in understanding various PLLs and also in facilitating further developments in this field. © 1986-2012 IEEE.
Gude V.G.,Mississippi State University
Applied Energy | Year: 2015
Desalination has become imperative as a drinking water source for many parts of the world. Due to the large quantities of thermal energy and high quality electricity requirements for water purification, the desalination industry depends on waste heat resources and renewable energy sources such as solar collectors, photovoltaic arrays, geothermal and wind and tidal energy sources. Considering the mismatch between the source supply and demand and intermittent nature of these energy resources, energy storage is a must for reliable and continuous operation of desalination facilities. Thermal energy storage (TES) requires a suitable medium for storage and circulation while the photovoltaic/wind generated electricity needs to be stored in batteries for later use. Desalination technologies that utilize thermal energy and thus require storage for uninterrupted process operation are multi-stage flash distillation (MSF), multi-effect evaporation (MED), low temperature desalination (LTD) and humidification-dehumidification (HD) and membrane distillation (MD). Energy accumulation, storage and supply are the key components of energy storage concept which improve process performance along with better resource economics, and minimum environmental impact. Similarly, the battery energy storage (BES) is essential to store electrical energy for electrodialysis (ED), reverse osmosis (RO) and mechanical vapor compression (MVC) technologies.This research-review paper provides a critical review on current energy storage options for different desalination processes powered by various renewable energy and waste heat sources with focus on thermal energy storage and battery energy storage systems. Principles of energy storage (thermal and electrical energy) are discussed with details on the design, sizing, and economics for desalination process applications. © 2014 Elsevier Ltd.
Karimi-Ghartemani M.,Mississippi State University
IEEE Transactions on Industrial Electronics | Year: 2014
In this paper, the enhanced phase-locked loop (EPLL) is modified to achieve a linear time invariant (LTI) and a pseudolinear (PL) EPLL called the LTI-EPLL and the PL-EPLL, respectively. The modification is based on using the estimated amplitude to make the EPLL operation independent from the input signal magnitude. The LTI-EPLL is input-output LTI, and its input-output relationship is represented by a transfer function, a representation that has not been possible for any other type of existing PLL structures. Having a transfer function representation is very useful for design and analysis purposes. The PL-EPLL introduces frequency adaptivity into the LTI-EPLL and is no longer LTI, but its performance is still independent from the input signal magnitude. The transfer function approach also facilitates the development and design of various EPLL extensions to estimate and reject the dc component and the harmonics as well as the extension with controlled attenuation of wideband noises. These topics are discussed in this paper. The presentation is focused on single-phase EPLL, but extension to three-phase PLLs is also briefly presented. © 1982-2012 IEEE.