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A survey on sensor localization

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控制理论与应用（英文版） 2010年第1期8卷 2-11页

作者： Jing WANG R. k. GHOsH sajal k. DAs Center for Research in Wireless Mobility and Networking (CReWMaN) Department of Computer Science and Engineering University of Texas at Arlington Arlington TX 76019 USA Department of Computer science and Engineering Indian Institute of Technology Kanpur India 208016

Localization is one of the fundamental problems in wireless sensor networks （WsNs）, since locations of the sensor nodes are critical to both network operations and most application level tasks. Although the GPs based localization schemes can be used to determine node locations within a few meters, the cost of GPs devices and non-availability of GPs signals in confined environments prevent their use in large scale sensor networks. There exists an extensive body of research that aims at obtaining locations as well as spatial relations of nodes in WsNs without requiring specialized hardware and/or employing only a limited number of anchors that are aware of their own locations. In this paper, we present a comprehensive survey on sensor localization in WsNs covering motivations, problem formulations, solution approaches and performance summary. Future research issues will also be discussed.

关键词： sensor localization Wireless sensor networks Range measurements Anchors Mobile sensor Proba-bilistic localization

EXPONENTIAL MEsH APPROXIMATIONs FOR A 3D EXTERIOR PROBLEM IN MAGNETIC INDUCTION

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Journal of Computational Mathematics 2005年第2期23卷 131-152页

作者： séraphinM.Mefire LaboratoireAmiénoisdeMathématiqueFondamentaleetAppliquée CNRSUMR6140UniversitddePicardieJules-Verne33r.Saint-Leu80039AmiensCedex1France

A numerical method combining the approaches of C.I. Goldstein and L.-A. Ying is used for the simulation in three-dimensional magnetostatics related to an exterior problem in magnetic induction. Recently introduced, this method is based on the use of a graded mesh obtained by gluing homothetic layers in the exterior domain and has been performed in the case of edge element discretizations. In this work, the theoretical and practical aspects of the method are inspected in the case of face element and volume element discretizations,for computing a magnetic induction. Error estimates, implementations, and numerical results are provided.

关键词： Boundary elements Error estimates Exterior problems Face elements Graded meshes Magnetostatics Mixed formulations Truncations Volume elements

MAGNETIC PROPERTY CHANGE IN AN AUsTENITIC sTAINLEss sTEEL sUBJECTED TO DAMAGE AT ELEVATED TEMPERATURE-MICROsTRUCTURE REsPONsIBLE FOR MAGNETIC PROPERTY

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Acta Metallurgica sinica(English Letters) 2004年第4期17卷 387-392页

作者： Y.Nagae k.Aoto Japan Nuclear Cycle Development Institute 4002 Narita Oarai Ibaraki 311-1393 JapanJapan Nuclear Cycle Development Institute 4002 Narita Oarai Ibaraki 311-1393 Japan

It has been found that magnetic property changes in austenitic stainless steel subjected to creep at high temperature. The change of magnetic property is mainly due to decrease the chromium concentration in the vicinity of grain boundary and transform into martensite in the area. However this result is for short-term creep. It is necessary to evaluate the long-term creep in order to develop non-destructive technique for plants. Moreover it is important to evaluate the fatigue. The change of magnetic property for those damages at high temperatures is investigated. The transformation into martensite is observed for both the long-term creep and fatigue. The magnetic regions are observed in sever deformed area and near crack. Then the formation of magnetic phases is related to the damage. The damage at high temperature can be universally evaluated.

关键词： creep fatigue high temperature austenitic stainless steel magnetism

A Graph Theory Based self-Learning Honeypot to Detect Persistent Threats

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Intelligent Automation & soft Computing 2023年第3期35卷 3331-3348页

作者： R.T.Pavendan k.sankar k.A.Varun kumar Department of Mathematics College of EngineeringAnna UniversityChennai600025India Department of Networking and Communications School of ComputingSRM Institute of Science and TechnologyKattankulathur602203India

Attacks on the cyber space is getting exponential in recent *** penetrations and breaches are real threats to the individuals and *** security systems are good enough to detect the known threats but when it comes to Advanced Persistent Threats(APTs)they *** APTs are targeted,more sophisticated and very persistent and incorporates lot of evasive techniques to bypass the existing ***,there is a need for an effective defense system that can achieve a complete reliance of *** address the above-mentioned issues,this paper proposes a novel honeypot system that tracks the anonymous behavior of the APT *** key idea of honeypot leverages the concepts of graph theory to detect such targeted *** proposed honey-pot is self-realizing,strategic assisted which withholds the APTs actionable tech-niques and observes the behavior for analysis and *** proposed graph theory based self learning honeypot using the resultsγ(C(n,1)),γc(C(n,1)),γsc(C(n,1))outperforms traditional techniques by detecting APTs behavioral with detection rate of 96%.

关键词： Graph theory Domination Connected Domination secure Connected Domination honeypot self learning ransomware

Autoimmune hepatitis,one disease with many faces:Etiopathogenetic,clinico-laboratory and histological characteristics

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World Journal of Gastroenterology 2015年第1期21卷 60-83页

作者： Nikolaos k Gatselis kalliopi Zachou George k koukoulis George N Dalekos Department of Medicine and Research Laboratory of Internal Medicine School of MedicineUniversity of Thessaly41110 LarissaGreece Department of Pathology School of MedicineUniversity of Thessaly41110 LarissaGreece

Autoimmune hepatitis(AIH) is an unresolving progressive liver disease of unknown etiology characterized byhypergammaglobulinemia,autoantibodies detection and interface *** to the absence of specific diagnostic markers and the large heterogeneity of its clinical,laboratory and histological features,AIH diagnosis may be potentially ***,in this in-depth review we summarize the substantial progress on etiopathogenesis,clinical,serological and histological phenotypes of *** has a global distribution affecting any age,both sexes and all ethnic *** manifestations vary from asymptomatic to severe or rarely fulminant *** with selective elevation of IgG is found in most *** attack is perpetuated,possibly via molecular mimicry,and favored by the impaired control of T-regulatory ***(interface hepatitis,emperipolesis and hepatic rosette formation) and autoantibodies detection although not pathognomonic,are still the hallmark for a timely *** remains a major diagnostic *** should be considered in every case in the absence of viral,metabolic,genetic and toxic etiology of chronic or acute *** personnel,hepato-pathologists and clinicians need to become more familiar with disease expressions and the interpretation of liver histology and autoimmune serology to derive maximum benefit for the patient.

关键词： Autoimmune hepatitis Liver autoimmunity Liver-rela

Geometrical Modeling of Walls of Multiwall Carbon Nanotube

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Open Journal of Composite Materials 2013年第2期3卷 10-15页

作者： k. P. s. s. Hembram k. Reddappa Reddy G. Mohan Rao Department of Instrumentation and Applied Physics Indian Institute of Science Bangalore India.

The relationship between the adjacent walls of the multiwall carbon nanotube (MWCNT) has been investigated and geometrical formulations have been derived. We have provided the relative index for each wall, owing to the diameter of the MWCNT. The index is higher for the smaller inner diameter MWCNT, and smaller for the higher inner diameter MWCNT. In the second formulation, we have put an empirical relation between the ratio of number of hexagons in the adjacent walls of two different sub-lattices. One can speculate the properties of inner walls from these relations by obtaining the accurate diameter of the concentric walls of a MWCNT.

关键词： Carbon Nanotube Concentric Walls Diameter Hexagons

Noncommutative dispersion relation and mass-radius relation of white dwarfs

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Research in Astronomy and Astrophysics 2018年第12期18卷 75-88页

作者： Arun Mathew Malay k.Nandy Department of Physics Indian Institute of Technology Guwahati

The equation of state of the electron degenerate gas in a white dwarf is usually treated by employing the ideal dispersion ***, the effect of quantum gravity is expected to be inevitably present and when this effect is considered through a non-commutative formulation, the dispersion relation undergoes a substantial *** this paper, we take such a modified dispersion relation and find the corresponding equation of state for the degenerate electron gas in white *** we solve the equation of hydrostatic equilibrium and find that this leads to the possibility of the existence of excessively high values of masses exceeding the Chandrasekhar limit, although the quantum gravity effect is taken to be very *** is only when we impose the additional effect of neutronization that we obtain white dwarfs with masses close to the Chandrasekhar limit with nonzero radii at the neutronization *** demonstrate these results by giving numerical estimates for the masses and radii of helium, carbon and oxygen white dwarfs.

关键词： gravitation equation of state stars:white dwarfs

sURFACE MODIFICATION OF POLYMERs

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Chinese Journal of Polymer science 1995年第3期13卷 195-203页

作者： Allan s.Hoffman Center for Bioengineering FL-20 University of WashingtonSeattle WA 98195 USA

The principal objectives and methods of surface modification of polymers are reviewed inthis paper. The methods covered include physical, chemical, mechanical and biological.

关键词： surface modification Polymers Biomolecules

sorption, Transport and Transformation of Atrazine in soils,Minerals and Composts: A Review

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Pedosphere 2011年第1期21卷 11-25页

作者： A.MUDHOO V.k.GARG Department of Chemical and Environmental Engineering Faculty of EngineeringUniversity of Mauritius Department of Environmental science & Engineering Guru Jambheshwar University of Science & Technology

Atrazine is a widely used herbicide for controlling weeds on both agricultural and nonagricultural land,which is equally detected in water supplies beyond safe *** the presence of atrazine metabolites is an indication of herbicide degradation,some of them still exhibit toxicity,greater water solubility and weaker interaction with soil components than ***,studies with atrazine in the environment are of interest because of its potential to contaminate drinking water *** on atrazine availability for transport,plant uptake,and microbial degradation and mineralization are therefore required to perform more comprehensive and realistic environmental risk assessments of its environmental *** review presents an account of the sorption-desorption phenomenon of atrazine on soil and other sorbents by revisiting the several mechanisms of atrazine-sorbent binding reported in the *** retention and transport of atrazine in soils;the influence of organic matter on atrazine sorption;the interactions of atrazine with humic substances,atrazine uptake by plants,atrazine bioccumulation and microbial degradation;atrazine transformation in composting environments;and finally atrazine removal by biosorption are discussed.

关键词： bioaccumulation catabolic pathways humic substances microbial degradation mineralization