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An Authentication Framework For Wireless Sensor Networks Using Identity-Based Signatures, Rehana Yasmin, Eike Ritter, Guilin Wang 2010 University of Birmingham

An Authentication Framework For Wireless Sensor Networks Using Identity-Based Signatures, Rehana Yasmin, Eike Ritter, Guilin Wang

Faculty of Informatics - Papers (Archive)

In Wireless Sensor Networks (WSNs), authentication is a crucial security requirement to avoid attacks against secure communication, and to mitigate DoS attacks exploiting the limited resources of sensor nodes. Resource constraints of sensor nodes are hurdles in applying strong public key cryptographic based mechanisms in WSNs. To address the problem of authentication in WSNs, we propose an efficient and secure framework for authenticated broadcast/multicast by sensor nodes as well as for outside user authentication, which utilizes identity based cryptography and online/offline signature schemes. The primary goals of this framework are to enable all sensor nodes in the network, firstly, to …


Operation Of A Wind-Diesel-Battery Based Hybrid Remote Area Power Supply System, Nishad Mendis, Kashem Muttaqi, Saad Sayeef, Sarath Perera 2010 University of Wollongong

Operation Of A Wind-Diesel-Battery Based Hybrid Remote Area Power Supply System, Nishad Mendis, Kashem Muttaqi, Saad Sayeef, Sarath Perera

Faculty of Informatics - Papers (Archive)

The operational behaviour of a Remote Area Power Supply (RAPS) system consisting of a Doubly Fed Induction Generator (DFIG) as the wind turbine generator, diesel generator system, battery storage, dump load and mains loads is investigated in this paper. The diesel generator operates during low wind penetration or high load demand periods. Otherwise, the DFIG and battery storage are able to satisfy the load demand of the system. The battery storage can be used as a source or load depending on the wind and loading conditions of the system. A control coordination among the system components is established with a …


On The Outage Of Multihop Parallel Relay Networks, Bappi Barua, Farzad Safaei, Mehran Abolhasan 2010 University of Wollongong

On The Outage Of Multihop Parallel Relay Networks, Bappi Barua, Farzad Safaei, Mehran Abolhasan

Faculty of Informatics - Papers (Archive)

In this paper we analyze the outage probability of a cooperative multihop parallel relay network in Nakagami-m fading channels. The general closed form expression of the outage probability is derived both for integer and arbitrary Nakagami parameter m. We present numerical results on the performance of the network. It shows a careful configuration of the network size and power sharing between nodes can ensure optimal outage performance in the network.


Efficient Rfid Authentication Scheme For Supply Chain Applications, Fei Bi, Yi Mu 2010 University of Wollongong

Efficient Rfid Authentication Scheme For Supply Chain Applications, Fei Bi, Yi Mu

Faculty of Informatics - Papers (Archive)

Radio Frequency Identification (RFID) technology has been widely used in supply chains to track and manage shipments. By tagging shipments with RFID tags, which can be remotely accessed by RFID readers, shipments can be identified and tracked in a supply chain. Security issues in RFID have been major concerns, since passive RFID tags have very weak computational power to support authentication. Sound authentication between tag and reader remains a challenging problem. In this paper, we provide a novel authentication scheme to protect tags from being tracked and identified by unauthorized readers and protect authorized readers against bogus tags. Our scheme …


Demystifying The Number Of The Beast In The Book Of Revelation: Examples Of Ancient Cryptology And The Interpretation Of The “666” Conundrum, M G. Michael 2010 University of Wollongong

Demystifying The Number Of The Beast In The Book Of Revelation: Examples Of Ancient Cryptology And The Interpretation Of The “666” Conundrum, M G. Michael

Faculty of Informatics - Papers (Archive)

As the year 2000 came and went, with the suitably forecasted fuse-box of utopian and apocalyptic responses, the question of "666" (Rev 13:18) was once more brought to our attention in different ways. Biblical scholars, for instance, focused again on the interpretation of the notorious conundrum and on the Traditionsgeschichte of Antichrist. For some of those commentators it was a reply to the outpouring of sensationalist publications fuelled by the millennial mania. This paper aims to shed some light on the background, the sources, and the interpretation of the “number of the beast”. It explores the ancient techniques for understanding …


Control Coordination Of A Wind Turbine Generator And A Battery Storage Unit In A Remote Area Power Supply System, Nishad Mendis, Kashem Muttaqi, Saad Sayeef, Sarath Perera 2010 University of Wollongong

Control Coordination Of A Wind Turbine Generator And A Battery Storage Unit In A Remote Area Power Supply System, Nishad Mendis, Kashem Muttaqi, Saad Sayeef, Sarath Perera

Faculty of Informatics - Papers (Archive)

A novel hybrid Remote Area Power Supply (RAPS) system consisting of a Doubly Fed Induction Generator (DFIG) based wind turbine and a battery Energy Storage System (ESS) is investigated in this paper. The proposed RAPS system also consists of a dummy load and its controller. The battery energy storage system is used as a buffer which is connected to the DC link of the DFIG. The dummy load which is connected to the AC side of the system is used to absorb the energy associated with over generation, a situation which cannot be handled through the battery system. Control coordination …


Generalised Score And Wald Tests, Paul Rippon, J. C. W Rayner 2010 University of Newcastle

Generalised Score And Wald Tests, Paul Rippon, J. C. W Rayner

Faculty of Informatics - Papers (Archive)

The generalised score and Wald tests are described and related to their nongeneralised versions. Two interesting applications are discussed. In the first a new test for the Behrens-Fisher problem is derived. The second is testing homogeneity of variances from multiple univariate normal populations.


Climate Change, Sustainable Development, And Ecosystems: 2009 Annual Report, John Dernbach 2009 Widener Univesity Law School

Climate Change, Sustainable Development, And Ecosystems: 2009 Annual Report, John Dernbach

John C. Dernbach

No abstract provided.


Transport Studies Of Nh4no3 Doped Methyl Cellulose Electrolyte, Siti Rohana Majid, Shuhaimi N. E. A., Teo L. P., Arof A. K. 2009 University of Malaya

Transport Studies Of Nh4no3 Doped Methyl Cellulose Electrolyte, Siti Rohana Majid, Shuhaimi N. E. A., Teo L. P., Arof A. K.

Siti Rohana Majid

This work reports on the transport properties of NH4NO3 doped methyl cellulose (MC) polymer electrolyte. The polymer electrolyte films were prepared by the technique of solvent casting. The highest room temperature conductivity of MC doped with 25 wt.% NH4NO3 is 2.10 +/- 0.37 x 10(-6) S cm(-1). Conductivity-temperature relationship obeys the Vogel-Tamman-Fulcher (VTF) rule from which the glass transition temperature, T-g was evaluated. The mobility, p and number density of charge carrier, n were calculated using the Rice and Roth model. (C) 2010 Elsevier B.V. All rights reserved.


Imputation Procedures For American Community Survey Group Quarters Small Area Estimation, Chandra Erdman, Chaitra Nagaraja 2009 Fordham University

Imputation Procedures For American Community Survey Group Quarters Small Area Estimation, Chandra Erdman, Chaitra Nagaraja

Chaitra H Nagaraja

No abstract provided.


Technology For The Organic Chemist: Three Exploratory Modules, John Esteb, LuAnne McNulty, John Magers, Paul Morgan, Anne Wilson 2009 Butler University

Technology For The Organic Chemist: Three Exploratory Modules, John Esteb, Luanne Mcnulty, John Magers, Paul Morgan, Anne Wilson

John Esteb

The ability to use computer-based technology is an essential skill set for students majoring in chemistry. This exercise details the introduction of appropriate uses for this technology in the organic chemistry series. The incorporation of chemically appropriate online resources (module 1), scientific databases (module 2), and the use of a chemical drawing program (module 3) are detailed here.

Note: Link is to the article in a subscription database available to users affiliated with Butler University. Appropriate login information will be required for access. Users not affiliated with Butler University should contact their local librarian for assistance in locating a copy …


Making The States Full Partners In A National Climate Change Effort: A Necessary Element For Sustainable Economic Development, John Dernbach, Robert McKinstry, Thomas Peterson 2009 Widener Univesity Law School

Making The States Full Partners In A National Climate Change Effort: A Necessary Element For Sustainable Economic Development, John Dernbach, Robert Mckinstry, Thomas Peterson

John C. Dernbach

This article explains why states and localities need to be full partners in a national climate change effort based on federal legislation or the existing Clean Air Act. A large share of reductions with the lowest cost and the greatest co-benefits (e.g., job creation, technology development, reduction of other pollutants) are in areas that a federal cap-and-trade program or other purely federal measures will not easily reach. These are also areas where the states have traditionally exercised their powers—including land use, building construction, transportation, and recycling. The economic recovery and expansion will require direct state and local management of climate …


Enumeration Schemes For Permutations Avoiding Barred Patterns, Lara Pudwell 2009 Valparaiso University

Enumeration Schemes For Permutations Avoiding Barred Patterns, Lara Pudwell

Lara K. Pudwell

No abstract provided.


Strategies For Preparing Computer Science Students For The Multicore World, Elizabeth Shoop, et al 2009 Macalester College

Strategies For Preparing Computer Science Students For The Multicore World, Elizabeth Shoop, Et Al

Elizabeth Shoop

No abstract provided.


Characteristics Of Methyl Cellulose-Nh4no3-Peg Electrolyte And Application In Fuel Cells, Siti Rohana Majid, Shuhaimi N. E. A., Alias N. A., Kufian M. Z., Arof A. K. 2009 University of Malaya

Characteristics Of Methyl Cellulose-Nh4no3-Peg Electrolyte And Application In Fuel Cells, Siti Rohana Majid, Shuhaimi N. E. A., Alias N. A., Kufian M. Z., Arof A. K.

Siti Rohana Majid

We report the viability of methyl cellulose (MC) as a membrane in a polymer electrolyte membrane fuel cell (PEMFC). Methyl cellulose serves as the polymer host, ammonium nitrate (NH4NO3) as the doping salt and poly(ethylene glycol) (PEG) as plasticizer. Conductivity measurement was carried out using electrochemical impedance spectroscopy. The room temperature conductivity of pure MC film is is (3.08 +/- 0.63) x 10(-11)S cm(-1). The conductivity increased to (2.10 +/- 0.37) x 10(-6)S cm(-1) on addition of 25 wt.% NH4NO3. By adding 15 wt.% of PEG 200 to the highest conducting sample in the MC-NH4NO3 system, the conductivity was further …


Shock Wave Formation On Turbulent Coanda Surfaces, T. Dowd, Caroline Lubert 2009 James Madison University

Shock Wave Formation On Turbulent Coanda Surfaces, T. Dowd, Caroline Lubert

Caroline P Lubert

No abstract provided.


Exponential Growth Rate Of Paths And Its Connection With Dynamics, Pengfei Zhang 2009 Northwestern University

Exponential Growth Rate Of Paths And Its Connection With Dynamics, Pengfei Zhang

Pengfei Zhang

No abstract provided.


Variability Of The Apparent Von Kármán Constant During Aeolian Saltation, Bailiang Li, Douglas Sherman, Eugene Farrell, Jean Ellis 2009 University of South Carolina - Columbia

Variability Of The Apparent Von Kármán Constant During Aeolian Saltation, Bailiang Li, Douglas Sherman, Eugene Farrell, Jean Ellis

Jean Taylor Ellis

No abstract provided.


Collaborative Research: Graptolite Biogeography, Paleo-Gis, And Evolutionary Dynamics Of Early Paleozoic Zooplankton, Daniel Goldman 2009 University of Dayton

Collaborative Research: Graptolite Biogeography, Paleo-Gis, And Evolutionary Dynamics Of Early Paleozoic Zooplankton, Daniel Goldman

Daniel Goldman

Funding Agency: National Service Foundation Investigators: Dr. Goldman, SY. Wu Amount: $255,326.00 Number of years: 4 years


Deformation Of Continental Crust Along A Transform Boundary, Coast Mountains, British Columbia, Scott Bogue, Margaret Rusmore, Karen Dodson, Kenneth Farley, Glenn Woodsworth 2009 Occidental College

Deformation Of Continental Crust Along A Transform Boundary, Coast Mountains, British Columbia, Scott Bogue, Margaret Rusmore, Karen Dodson, Kenneth Farley, Glenn Woodsworth

Scott Bogue

New structural, paleomagnetic, and apatite (U-Th)/He results from the continental margin inboard of the Queen Charlotte fault (∼54°N) delineate patterns of brittle faulting linked to transform development since ∼50 Ma. In the core of the orogen, ∼250 km from the transform, north striking, dip-slip brittle faults and vertical axis rotation of large crustal domains occurred after ∼50 Ma and before intrusion of mafic dikes at 20 Ma. By 20 Ma, dextral faulting was active in the core of the orogen, but extension had migrated toward the transform, continuing there until <9 Ma. Local tilting in the core of the orogen …


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