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Causal Structure Identification from Corrupt Data-Streams [article]

Venkat Ram Subramanian, Andrew Lamperski, Murti V. Salapaka
<span title="2020-06-08">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Complex networked systems can be modeled and represented as graphs, with nodes representing the agents and the links describing the dynamic coupling between them. The fundamental objective of network identification for dynamic systems is to identify causal influence pathways. However, dynamically related data-streams that originate from different sources are prone to corruption caused by asynchronous time stamps, packet drops, and noise. In this article, we show that identifying causal
more &raquo; ... using corrupt measurements results in the inference of spurious links. A necessary and sufficient condition that delineates the effects of corruption on a set of nodes is obtained. Our theory applies to nonlinear systems, and systems with feedback loops. Our results are obtained by the analysis of conditional directed information in dynamic Bayesian networks. We provide consistency results for the conditional directed information estimator that we use by showing almost-sure convergence.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2006.04683v1">arXiv:2006.04683v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/nvgrc62irbb4nmvjyoxac25mda">fatcat:nvgrc62irbb4nmvjyoxac25mda</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200610010335/https://arxiv.org/pdf/2006.04683v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2006.04683v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Network Structure Identification from Corrupt Data Streams [article]

Venkat Ram Subramanian, Andrew Lamperski, Murti V. Salapaka
<span title="2020-06-08">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Complex networked systems can be modeled as graphs with nodes representing the agents and links describing the dynamic coupling between them. Previous work on network identification has shown that the network structure of linear time-invariant (LTI) systems can be reconstructed from the joint power spectrum of the data streams. These results assumed that data is perfectly measured. However, real-world data is subject to many corruptions, such as inaccurate time-stamps, noise, and data loss. We
more &raquo; ... how that identifying the structure of linear time-invariant systems using corrupt measurements results in the inference of erroneous links. We provide an exact characterization and prove that such erroneous links are restricted to the neighborhood of the perturbed node. We extend the analysis of LTI systems to the case of Markov random fields with corrupt measurements. We show that data corruption in Markov random fields results in spurious probabilistic relationships in precisely the locations where spurious links arise in LTI systems.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2006.04690v1">arXiv:2006.04690v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/kn3v2tjkgjgtfhxz5kkje2bmvu">fatcat:kn3v2tjkgjgtfhxz5kkje2bmvu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200824152403/https://arxiv.org/pdf/2006.04690v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/89/2e/892e0a38222796fe9610c374e16f42f8b0ca40fc.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2006.04690v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Topology Learning in Radial Dynamical Systems with Unreliable Data [article]

Venkat Ram Subramanian, Deepjyoti Deka, Saurav Talukdar, Andy Lamperski, Murti Salapaka
<span title="2020-09-28">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Many complex engineering systems admit bidirectional and linear couplings between their agents. Blind and passive methods to identify such influence pathways/couplings from data are central to many applications. However, dynamically related data-streams originating at different sources are prone to corruption caused by asynchronous time-stamps of different streams, packet drops and noise. Such imperfect information may be present in the entire observation period, and hence not detected by
more &raquo; ... -detection algorithms that require an initial clean observation period. Prior work has shown that spurious links are inferred in the graph structure due to the corrupted data-streams, which prevents consistent learning. In this article, we provide a novel approach to detect the location of corrupt agents as well as present an algorithm to learn the structure of radial dynamical systems despite corrupted data streams. In particular, we show that our approach provably learns the true radial structure if the unknown corrupted nodes are at least three hops away from each other. Our theoretical results are further validated in test dynamical network.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2009.13458v1">arXiv:2009.13458v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hf555u5mjnfizfp3utazzkday4">fatcat:hf555u5mjnfizfp3utazzkday4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201005052901/https://arxiv.org/pdf/2009.13458v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2009.13458v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Simulating Shape Changes during Electrodeposition

Venkat R. Subramanian, Ralph E. White
<span title="">2002</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5ywn2ubd7jeh3oeo5jucledzby" style="color: black;">Journal of the Electrochemical Society</a> </i> &nbsp;
A technique based on the analytical method of lines is presented for predicting shape changes during electrodeposition. The technique is presented for both primary and secondary current distributions. The method presented does not require iterations for nonlinear Butler-Volmer boundary conditions or changing electrode shapes. The technique is based on a semianalytical method developed earlier for predicting current distributions in electrochemical cells. This technique is attractive because it
more &raquo; ... rovides a symbolic solution for the Laplace equation, and hence requires less computation time to perform case studies.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1505637">doi:10.1149/1.1505637</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/czvahntilrg2badxh5hqj2xqeu">fatcat:czvahntilrg2badxh5hqj2xqeu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170407203330/http://www.maple.eece.wustl.edu/pubs/13-JES-shape%20changes-2002.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/e3/20/e32023c6f284f83585367ffc6bf8bfddc07ecea6.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1505637"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

e-HRM: A Strategic Reveiw

Puja Sareen, K. Venkat Subramanian
<span title="2012-08-29">2012</span> <i title="Macrothink Institute, Inc."> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/2r2zdbc5xbfdxlq73e6gaeoquu" style="color: black;">International Journal of Human Resource Studies</a> </i> &nbsp;
Today, HR is not treated as a single function. It's a collection of highly specialized capabilities — each with distinct objectives, tasks and needs. There is an ever-increasing pressure on Human Resource (HR) function to support strategic goals and to focus on value adding activities. Organizations have realized the growing importance of using Information Technology (IT) in leveraging their Human Resource (HR) functions. This takes the form of e-HRM (Electronic Human Resource Management). The
more &raquo; ... -HRM revolution relies on cutting-edge information technology, ranging from Internet-enabled human resources information systems (HRIS) to corporate intranets and portals. The driving forces are intensifying competition, need to manage workforce on a global level, to improve HR service delivery and to bring cost savings. e-HRM enables HR leaders to become architects in the development of competitive organizational social systems.This paper reviews the research work done in the field of e-HRM. It provides insights into a framework of e-HRM, along with benefits and limitations. It discusses the impact of e-HRM on HR professionals. It seeks to identify implications for future research in this field.Key words: Human Resource(HR), Electronic Human Resource Management (e-HRM), Human Resource Information System(HRIS), Information Technolo
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5296/ijhrs.v2i3.2100">doi:10.5296/ijhrs.v2i3.2100</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lwphie5gp5d3tkrwax3wxx76za">fatcat:lwphie5gp5d3tkrwax3wxx76za</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20150507223151/http://www.macrothink.org:80/journal/index.php/ijhrs/article/viewFile/2100/1937" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f0/fe/f0fe693a5950af4190b522f3588c13c93e496d0f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.5296/ijhrs.v2i3.2100"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Current Needs in Electrochemical Engineering Education

Venkat R. Subramanian, Richard D. Braatz
<span title="">2010</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/menz7v5ehvchjg6q4ia76scgsa" style="color: black;">The Electrochemical Society Interface</a> </i> &nbsp;
Some of the unresolved issues and research topics in the energy area relevant for Current Needs in Electrochemical Engineering Education by Venkat R. Subramanian and Richard D.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.f05102if">doi:10.1149/2.f05102if</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/um4rkqltjngy7l6nu77ewd6gvy">fatcat:um4rkqltjngy7l6nu77ewd6gvy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180721114013/http://interface.ecsdl.org/content/19/2/37.full.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/95/ac/95ac8a2d0258fd2e8113ae4d513b4367ac1c1999.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.f05102if"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Mathematical modeling of secondary lithium batteries

Gerardine G. Botte, Venkat R. Subramanian, Ralph E. White
<span title="">2000</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/4nax3wfe4bf3tk7ak4ghw5ho2e" style="color: black;">Electrochimica Acta</a> </i> &nbsp;
Subramanian and White have developed a Maple program for generating Jacobians for any order of accuracy.  ...  These kind of differential equations can be solved by using the technique proposed by Subramanian and White [110] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/s0013-4686(00)00340-6">doi:10.1016/s0013-4686(00)00340-6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/q7h7d32kenbfjl4b5l3kz7xklm">fatcat:q7h7d32kenbfjl4b5l3kz7xklm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20100606015809/http://students.cec.wustl.edu/~vr3/pubs/4-EActa-GB-VS-RW-mathmodeling_sec_Lith_bat-2000.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/74/1c/741ce7e77743e21a0de2828b35a69ee50054b50b.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/s0013-4686(00)00340-6"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Mathematical Modeling of Electrochemical Systems at Multiple Scales in Honor of Professor John Newman

John W. Weidner, Perla B. Balbuena, Adam Z. Weber, Venkat Srinivasan, Venkat R. Subramanian
<span title="">2017</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5ywn2ubd7jeh3oeo5jucledzby" style="color: black;">Journal of the Electrochemical Society</a> </i> &nbsp;
Advancing our understanding of electrochemical phenomena, and ultimately improving the operation and design of electrochemical systems, is aided by the use of advanced simulation tools that enable researchers to de-convolute complex, interacting phenomena. The challenge in developing these tools is that length scales in electrochemical applications can range from electronic to atomic to molecular to nanoscale to microscale to macroscale. Figure 1 illustrates some of the computational methods
more &raquo; ... t have been developed to deal with phenomena at these disparate time and length scales to compute properties and model phenomena. 1 This focus issue of the Journal of the Electrochemical Society is devoted to the mathematical modeling of electrochemical systems across multiple scales. It is dedicated to the work of Professor John Newman from UC Berkeley, who helped establish the field of modeling of electrochemical systems, and is aligned with a previous focus issue 2 and regular symposium on multiscale modeling for electrochemical systems at ECS biannual meetings. He dedicated his career to this topic, and he trained and influenced countless researchers over the years to analyze, simulate and optimize electrochemical systems using quantitative, and detailed mathematical models for different phenomena. 3 His impact cuts across different electrochemical systems as witnessed by papers in different areas in this focus issue, lithium-ion batteries, fuel cells, corrosion, flow batteries, molten salts, etc. The papers published in this focus issue include model based experimental design, analysis and control, model based analysis of anomalies in experimental observation, and also a great discussion on the gap between model prediction and experimental observation. To honor the breadth of his accomplishments, papers here deal with fracture modeling and volume-change predictions in lithium-silicon batteries, the growth behavior of nanoparticles, synthesis of ammonia in molten salts, ab-initio molecular dynamic simulations of the solid-electrolyte interface, and predictions of bandto-band tunneling of electrons through the energy bandgap, to name
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.0731711jes">doi:10.1149/2.0731711jes</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/uu4yhgyt2zdctiw6ppb33jmm6q">fatcat:uu4yhgyt2zdctiw6ppb33jmm6q</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180720194550/http://jes.ecsdl.org/content/164/11/Y13.full.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/21/84/2184651ec0323b6c6a5e56eff1360dd1b7257eff.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.0731711jes"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Parikh Matrices and Istrail Morphism

K.G. Subramanian, Pradeep Isawasan, Ibrahim Venkat
<span title="2013-01-25">2013</span> <i title="Penerbit UTM Press"> Malaysian Journal of Fundamental and Applied Sciences </i> &nbsp;
Parikh matrices of words that involve certain ratioproperty are investigated by Subramanian et al [9] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.11113/mjfas.v9n1.72">doi:10.11113/mjfas.v9n1.72</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/cp7wz6b6ajfovl6yalt6s3uhzi">fatcat:cp7wz6b6ajfovl6yalt6s3uhzi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190429000625/https://mjfas.utm.my/index.php/mjfas/article/download/72/447" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f0/bc/f0bcab3fe5f365161521cb13a96a413c4a07206e.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.11113/mjfas.v9n1.72"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

A Boundary Condition for Porous Electrodes

Venkat R. Subramanian, Deepak Tapriyal, Ralph E. White
<span title="">2004</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/f5cqlaehqretvc2gt7m6jk6efe" style="color: black;">Electrochemical and solid-state letters</a> </i> &nbsp;
A boundary condition for electrolyte concentration at the porous electrode/separator interface is developed. This boundary condition helps predict the electrolyte concentration profile in the porous electrode without having to solve for the concentration profile in the separator.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1773751">doi:10.1149/1.1773751</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dnude2bjmretxdjfe3jddvrzoe">fatcat:dnude2bjmretxdjfe3jddvrzoe</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170407203018/http://www.maple.eece.wustl.edu/pubs/16-ESSL-boundary%20condition-2004.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/78/e1/78e10234e2bf98c83638dfd5854dbfa0a2bed269.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1773751"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

An approximate solution for a pseudocapacitor

Venkat R. Subramanian, Sheba Devan, Ralph E. White
<span title="">2004</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/72ed7chkybbaxp4qtbhpy6fqea" style="color: black;">Journal of Power Sources</a> </i> &nbsp;
Transient analytical solutions are presented for the overpotential and the voltage for a porous electrode that includes both double-layer charging and a faradaic reaction. In addition, a simplified dynamic model is developed for the same process based on a second order, three-parameter polynomial approximate model. The effects of the parameters such as dimensionless exchange current density, conductivity ratio and applied current density on the voltage and overpotential distribution are
more &raquo; ... d. Also, using the exact transient solution an expression for the dimensionless interfacial current density is derived and the effects of the parameters mentioned above are presented.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.jpowsour.2004.03.069">doi:10.1016/j.jpowsour.2004.03.069</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/3fi6lq62jrd3lpymdliwiub3za">fatcat:3fi6lq62jrd3lpymdliwiub3za</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170811212927/http://depts.washington.edu/maple/pubs/17-JPS-capacitorapproximate-2004.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/70/1e/701e68e32e880895255b8adf7ddc5b0f97a62759.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.jpowsour.2004.03.069"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Transient Analysis of a Porous Electrode

Sheba Devan, Venkat R. Subramanian, Ralph E. White
<span title="">2005</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5ywn2ubd7jeh3oeo5jucledzby" style="color: black;">Journal of the Electrochemical Society</a> </i> &nbsp;
An analytical expression is presented for the voltage response including the transient voltage for a simple ͑i.e., no concentration gradients͒ porous electrode model subject to a sinusoidal input current density. The transient voltage response as a function of the frequency, exchange current density, and double layer capacitance is studied independent of the periodic ͑steady state͒ voltage response. The change in the voltage response in the transient region is compared to that of the periodic
more &raquo; ... ltage response with respect to the parameters. The physical properties of the porous electrode can be estimated using the voltage response in the transient region is presented. The methodology for doing this is described.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1884786">doi:10.1149/1.1884786</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/v32vyecvvzckzedvo7avt6gxp4">fatcat:v32vyecvvzckzedvo7avt6gxp4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170809041100/http://www.maple.eece.wustl.edu/newsite/pubs/18-JES-SD-VS-RW-transient-2005.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/82/30/82304e5f171c46fd99e902ca93ccbbdcc0b0cace.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/1.1884786"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

Exploiting the Vulnerabilities of Android Camera API

Neha Malokar K., Nidhi Subramanian, Shriranjani Sriram, Sneha Venkat, Zainab Khan, Seema Shrawne
<span title="2015-08-20">2015</span> <i title="Tejass Publisheers"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/e4syksll7fge3oz5rpu6hwlxve" style="color: black;">IARJSET</a> </i> &nbsp;
Most smartphones come with at least one camera, and camera is used mostly with media (photos, videos, etc.) sharing Android applications. Thus, hackers are finding devious ways to exploit the smartphone camera. Smartphones are almost always connected to the Internet. Most applications make use of the mobile data network or Wi-Fi to send and receive data, both in the foreground as well as in the background. In some cases, this sending and receiving of information helps in improving the efficacy
more &raquo; ... f the application by connecting to, say, the social media accounts of the user or sending some user related information, such as location, to the application developer. This can help the developers to cater to the needs of the users in a better way and modify the application accordingly. However, as much as the Internet can be used to send and/or receive useful data, there is a very good chance of the same being exploited by malicious applications to transmit sensitive information which can be an infringement on the user's privacy. Such sensitive information can include personal photos, videos, SMS, etc. This transmission can very well happen without the user knowing about it.One attack that infringes on the user's privacy is a camera-based attack. There is a possibility that an Android Camera can be used to surreptitiously capture photos and/or videos without the user knowing about it. These captured photos and videos can be sent over mobile data networks or Wi-Fi to criminals/ hackers.Here, we attempt to implement the attack on mobile phones, and demonstrate the feasibility and effectiveness of the attack. Furthermore, we propose a defence scheme that can effectively detect these attacks and notify the user.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.17148/iarjset.2015.2817">doi:10.17148/iarjset.2015.2817</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/alyc5tab4bawfhsqwkhnbb6ue4">fatcat:alyc5tab4bawfhsqwkhnbb6ue4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180602164816/http://www.iarjset.com/upload/2015/august-15/IARJSET%2017.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/97/5c/975c5a5bac232fbe2d661c9f0ed73ccfc4395b10.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.17148/iarjset.2015.2817"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Generic Model Control for Lithium-Ion Batteries

Manan Pathak, Suryanarayana Kolluri, Venkat R. Subramanian
<span title="">2017</span> <i title="The Electrochemical Society"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5ywn2ubd7jeh3oeo5jucledzby" style="color: black;">Journal of the Electrochemical Society</a> </i> &nbsp;
Battery Management Systems (BMS) are critical to safe and efficient operation of lithium-ion batteries and accurate prediction of the internal states. Smarter BMS that can estimate and implement optimal charging profiles in real-time are important for advancement of the Li-ion battery technology. Estimating optimal profiles using physics-based models is computationally expensive because of the non-linear and stiff nature of the model equations, involving the need for constrained nonlinear
more &raquo; ... zation. In this work, we present an alternative approach to control batteries called as Generic Model Control, or Reference System Synthesis. This work enables robust stabilization and control of battery models to set-point as an alternative approach, eliminating the need to perform optimization of nonlinear models. As compared to the generic model control approaches implemented by previous researchers, we implement the same concept using direct DAE numerical solvers. The results are presented for single input single objective problems, and for constrained problems for various battery models.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.1521704jes">doi:10.1149/2.1521704jes</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/2qvt3njvevakrhqdfprwsyqvoy">fatcat:2qvt3njvevakrhqdfprwsyqvoy</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180720135659/http://jes.ecsdl.org/content/164/6/A973.full.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/f0/6b/f06bd41e1a1cc082963b773b79e0c2c97c3dc997.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1149/2.1521704jes"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> Publisher / doi.org </button> </a>

A quick and efficient method for consistent initialization of battery models

Vijayasekaran Boovaragavan, Venkat R. Subramanian
<span title="">2007</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/pivmldnymzd53jqzq6ce5tu7lq" style="color: black;">Electrochemistry communications</a> </i> &nbsp;
This variable can also be represented in algebraic form using an efficient simplification method proposed by Subramanian et al. [10] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.elecom.2007.04.003">doi:10.1016/j.elecom.2007.04.003</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jyy6zxoskfdy7albwm2dceflda">fatcat:jyy6zxoskfdy7albwm2dceflda</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20110401011021/http://students.cec.wustl.edu/~vr3/pubs/25-EC-initialization_of_battery_models-2007.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a6/e0/a6e0cf585f088018d3ea9d001e0716edc572f8de.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.elecom.2007.04.003"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> elsevier.com </button> </a>
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