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The Missouri Miner, October 16, 2014 Oct 2014

The Missouri Miner, October 16, 2014

The Missouri Miner Newspaper

No abstract provided.

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A Cross Layer Routing Scheme For Passive Rfid Tag-To-Tag Communication, Haifeng Niu, S. Jagannathan Oct 2014

A Cross Layer Routing Scheme For Passive Rfid Tag-To-Tag Communication, Haifeng Niu, S. Jagannathan

Electrical and Computer Engineering Faculty Research & Creative Works

A routing protocol for Passive RFID tag-to-tag networks is not reported in contrast with routing protocols for battery powered mobile wireless ad hoc and sensor networks. In this paper, we provide a cross-layer approach for passive RFID tag-to-tag communication. In the data link layer, we designed the medium access control (MAC) protocol which is suitable for passive tag-to-tag communication. In the network layer, we developed the optimal link cost multipath routing (OLCMR) protocol by using modulation depth as the link cost. Simulation results verify that proposed routing protocol consumes less energy when it is compared to optimum link state routing …

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An Energy Efficient Framework For Localization And Coverage In Participatory Urban Sensing, Adnan Khan, Sk Kajal Arefin Imon, Sajal K. Das Oct 2014

An Energy Efficient Framework For Localization And Coverage In Participatory Urban Sensing, Adnan Khan, Sk Kajal Arefin Imon, Sajal K. Das

Computer Science Faculty Research & Creative Works

Participatory sensing is an approach to data collection where individuals use their smartphones to capture different scenarios, and upload to a server to create knowledge. A fundamental issue in such data collection process is the coverage of the collected data that reflects how well the targeted area is monitored. To ensure coverage requirements, the traditional approaches require the server to know the location of the participating mobile devices that takes significant amount of energy. In this paper, we propose a novel framework called PLUS for data collection in participatory sensing ensuring partial coverage, where a mobile device does not send …

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Optimal Strategies For Targeted Influence In Signed Networks, Basak Guler, Burak Varan, Kaya Tutuncuoglu, Mohamed Nafea, Ahmed A. Zewail, Aylin Yener, Damien Octeau Oct 2014

Optimal Strategies For Targeted Influence In Signed Networks, Basak Guler, Burak Varan, Kaya Tutuncuoglu, Mohamed Nafea, Ahmed A. Zewail, Aylin Yener, Damien Octeau

Electrical and Computer Engineering Faculty Research & Creative Works

Online social communities often exhibit complex relationship structures, ranging from close friends to political rivals. As a result, persons are influenced by their friends and foes differently. Network applications can benefit from accompanying these structural differences in propagation schemes. In this paper, we study the optimal influence propagation policies for networks with positive and negative relationship types. We tackle the problem of minimizing the end-to-end propagation cost of influencing a target person in favor of an idea by utilizing the relationship types in the underlying social graph. The propagation cost is incurred by social and physical network dynamics such as …

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The Missouri Miner, October 9, 2014 Oct 2014

The Missouri Miner, October 9, 2014

The Missouri Miner Newspaper

No abstract provided.

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Fides: A Trust-Based Framework For Secure User Incentivization In Participatory Sensing, Francesco Restuccia, Sajal K. Das Oct 2014

Fides: A Trust-Based Framework For Secure User Incentivization In Participatory Sensing, Francesco Restuccia, Sajal K. Das

Computer Science Faculty Research & Creative Works

Participatory sensing (PS) has recently attracted tremendous attention given its potential for a wide variety of sensing applications. Due to the fact that PS systems rely completely on the data provided by the users, incentivizing users' active participation while guaranteeing data reliability is paramount to effectively employ PS systems in practical scenarios. In this paper, we first define a set of attacks which compromise data reliability of existing PS applications. Next, we propose a scalable and secure trust-based framework, called FIDES, which relies on the concept of mobile security agents (MSAs) and Jsang's trust model to rule out incorrect reports …

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Effect: An Energy Efficient Framework For Data Compression In Tree-Based Wireless Sensor Networks, Sk Kajal Arefin Imon, Adnan Khan, Sajal K. Das Oct 2014

Effect: An Energy Efficient Framework For Data Compression In Tree-Based Wireless Sensor Networks, Sk Kajal Arefin Imon, Adnan Khan, Sajal K. Das

Computer Science Faculty Research & Creative Works

Periodic data collection is an important application in wireless sensor networks (WSNs). Since sensors are power constrained, building energy efficient data collection topology offers significant challenge. Compression of correlated data is one of the widely used techniques in WSNs where sensory data are compressed along their routes toward the sink. Consequently, a data compression tree is formed in which a sensor (say, child) selects its parent based on the degree of correlation among their sensed data, and the data of the child node is compressed at the parent node. In periodic data collection, the data collected by individual sensors can …

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Dynamic Content And Route Management In Wireless Networks, Sanjay Kumar Madria, Anirban Mondal, Tridib Mukherjee Oct 2014

Dynamic Content And Route Management In Wireless Networks, Sanjay Kumar Madria, Anirban Mondal, Tridib Mukherjee

Computer Science Faculty Research & Creative Works

Significant advances in wireless and mobile technologies have been witnessed over the past decade. The ever-increasing prevalence and proliferation of mobile devices coupled with the popularity of social networking and increasingly technology-savvy residents have fueled the growth of mobile crowdsourcing and participatory sensing. This has catalyzed the growth of new-age applications, which necessitate dynamic management of information as well as content in wireless networks of different types such as Mobile Peer-to-Peer (MP2P), Vehicle-to-Vehicle (V2V) and Delay-Tolerant Networks (DTNs).

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Quantifying Economic Benefits For Rail Infrastructure Projects, Suzanna Long, Ruwen Qin, John Betak, Akhilesh Ojha, John J. Myers Oct 2014

Quantifying Economic Benefits For Rail Infrastructure Projects, Suzanna Long, Ruwen Qin, John Betak, Akhilesh Ojha, John J. Myers

Engineering Management and Systems Engineering Faculty Research & Creative Works

This project identifies metrics for measuring the benefit of rail infrastructure projects for key stakeholders. It is important that stakeholders with an interest in community economic development play an active role in the development of the rail network. Economic development activities in both rural and urban settings are essential if a nation is to realize growth and prosperity. Many communities have developed goals and visions to establish an economic development program, but they often fail to achieve their goals due to uncertainties during the project selection and planning process. Communities often select a project from a vast pool of ideas …

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Efficient And Secure Code Dissemination In Sensor Clouds, Vimal Kumar, Sanjay Kumar Madria Oct 2014

Efficient And Secure Code Dissemination In Sensor Clouds, Vimal Kumar, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

In this paper, we present an efficient and secure code dissemination technique aimed at sensor clouds. Previous code dissemination techniques were geared toward traditional wireless sensor networks. They did not take into account, the dynamic nature of a sensor cloud, where the applications running on the motes may not just be updated but changed completely in successive code disseminations. The technique presented in this paper is based upon the observation that a large amount of code is common between applications in wireless sensor networks. Our technique first discovers the code common across various wireless sensor applications. It then distributes this …

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E-Vet: Economic Reward/Penalty-Based System For Vehicular Traffic Management, Nilesh Padhariya, Ouri Wolfson, Anirban Mondal, Varun Gandhi, Sanjay Kumar Madria Oct 2014

E-Vet: Economic Reward/Penalty-Based System For Vehicular Traffic Management, Nilesh Padhariya, Ouri Wolfson, Anirban Mondal, Varun Gandhi, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

We propose the E-VeT system for efficient vehicular traffic management in road networks using economy-based reward/penalty schemes. In E-VeT, base stations collaboratively facilitate dynamic vehicular route assignments for reducing the traffic congestion, average time of arrival and fuel consumption. The main contributions of this work are two-fold. First, it proposes an R2A (Revenue-based Route Allocation) scheme, which rewards vehicles for following system-assigned longer-time paths, and charges a fee for following system-assigned shorter-time paths. Furthermore, it penalizes vehicles for any deviations from the system-assigned paths. Second, it discusses a route allocation algorithm, which gives lesser-time paths as a preference to vehicles …

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The Missouri Miner, October 2, 2014 Oct 2014

The Missouri Miner, October 2, 2014

The Missouri Miner Newspaper

No abstract provided.

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Planarity Of Whitney Levels, Jorbe Bustamante, W. J. Charatonik, Raul Escobedo Oct 2014

Planarity Of Whitney Levels, Jorbe Bustamante, W. J. Charatonik, Raul Escobedo

Mathematics and Statistics Faculty Research & Creative Works

First, we characterize all locally connected continua whose all Whitney levels are planar. Second, we show by example that planarity is not a (strong) Whitney reversible property. This answers a question from Illanes-Nadler book [2].

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Low O2-Induced Atp Release From Erythrocytes Of Humans With Type 2 Diabetes Is Restored By Physiological Ratios Of C-Peptide And Insulin, Jennifer P. Richards, Gina L.C. Yosten, Grant R. Kolar, Cory W. Jones, Alan H. Stephenson, Mary L. Ellsworth, Randy S. Sprague Oct 2014

Low O2-Induced Atp Release From Erythrocytes Of Humans With Type 2 Diabetes Is Restored By Physiological Ratios Of C-Peptide And Insulin, Jennifer P. Richards, Gina L.C. Yosten, Grant R. Kolar, Cory W. Jones, Alan H. Stephenson, Mary L. Ellsworth, Randy S. Sprague

Biological Sciences Faculty Research & Creative Works

ATP release from erythrocytes in response to reduced oxygen (O2) tension stimulates local vasodilation, enabling these cells to direct perfusion to areas in skeletal muscle in need of O2. Erythrocytes of humans with type 2 diabetes do not release ATP in response to low O2. Both C-peptide and insulin individually inhibit low O2-induced ATP release from healthy human erythrocytes, yet when co administered at physiological concentrations and ratios, no inhibition is seen. Here, we determined: that 1) eryth-rocytes of healthy humans and humans with type 2 diabetes possess a C-peptide receptor (GPR146), 2) the combination of C-peptide and insulin at …

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Stress Amplification During Development Of The Tendon-To-Bone Attachment, Y. Liu, A. G. Schwartz, Victor Birman, S. Thomopoulos, G. M. Genin Oct 2014

Stress Amplification During Development Of The Tendon-To-Bone Attachment, Y. Liu, A. G. Schwartz, Victor Birman, S. Thomopoulos, G. M. Genin

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

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An Integrated Active Power Filter-Ultracapacitor Design To Provide Intermittency Smoothing And Reactive Power Support To The Distribution Grid, Deepak Somayajula, Mariesa L. Crow Oct 2014

An Integrated Active Power Filter-Ultracapacitor Design To Provide Intermittency Smoothing And Reactive Power Support To The Distribution Grid, Deepak Somayajula, Mariesa L. Crow

Electrical and Computer Engineering Faculty Research & Creative Works

Grid integration of distributed energy resources (DERs) is increasing rapidly. Furthermore, smart grid technologies are making the grid more bi-directional providing opportunities to consumers to supply power back to the grid. Energy storage technologies like battery and ultracapacitor (UCAP) can be integrated through grid-tied inverters to support variable DERs such as solar and wind. In these cases, the energy storage with active power capability can improve grid performance by providing active and reactive power support. In this paper, the concept of providing active/reactive power support and renewable intermittency smoothing to the distribution grid by UCAPs is presented. UCAPs have a …

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The Bridge Newsletter Winter 2014, Missouri University Of Science And Technology Oct 2014

The Bridge Newsletter Winter 2014, Missouri University Of Science And Technology

The Bridge Newsletter

-Smart living
-Bodapati earns lifetime award
-TMS honors Myers
-Mays receives award for research

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Light Localization Induced By A Random Imaginary Refractive Index, A. Basiri, Yaron Bromberg, Alexey Yamilov, Tsampikos Kottos Oct 2014

Light Localization Induced By A Random Imaginary Refractive Index, A. Basiri, Yaron Bromberg, Alexey Yamilov, Tsampikos Kottos

Physics Faculty Research & Creative Works

We show the emergence of light localization in arrays of coupled optical waveguides with randomness only in the imaginary part of their refractive index and develop a one-parameter scaling theory for the normalized participation number of Floquet-Bloch modes. This localization introduces a different length scale in the decay of the autocorrelation function of a paraxial beam propagation. Our results are relevant to a vast family of systems with randomness in the dissipative part of their impedance spatial profile.

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Common Ground Newsletter Fall 2014, Missouri University Of Science And Technology Oct 2014

Common Ground Newsletter Fall 2014, Missouri University Of Science And Technology

Common Ground

-A First for Everything -- Students share their new experiences

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Development And Degradation Behavior Of Magnesium Scaffolds Coated With Polycaprolactone For Bone Tissue Engineering, Mostafa Yazdimamaghani, Mehdi Razavi, Daryoosh Vashaee, Lobat Tayebi Oct 2014

Development And Degradation Behavior Of Magnesium Scaffolds Coated With Polycaprolactone For Bone Tissue Engineering, Mostafa Yazdimamaghani, Mehdi Razavi, Daryoosh Vashaee, Lobat Tayebi

Chemical and Biochemical Engineering Faculty Research & Creative Works

Rapid degradation of magnesium (Mg) alloys is the major drawback preventing these materials from being applicable as tissue engineering scaffolds. In order to resolve this issue, in this paper, porous Mg scaffolds coated by polycaprolactone (PCL) were synthesized and their material properties and in vitro biodegradation were fully examined. The results indicated that PCL coating can significantly enhance the compressive strength and degradation resistance of Mg scaffolds. We showed that while the uncoated Mg scaffold degrades completely (100% weight loss) after 72 h, the degradation (weight loss) of the Mg scaffolds coated by 3% and 6% PCL is only 36% …

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An Ultracapacitor Integrated Power Conditioner For Intermittency Smoothing And Improving Power Quality Of Distribution Grid, Deepak Somayajula, Mariesa L. Crow Oct 2014

An Ultracapacitor Integrated Power Conditioner For Intermittency Smoothing And Improving Power Quality Of Distribution Grid, Deepak Somayajula, Mariesa L. Crow

Electrical and Computer Engineering Faculty Research & Creative Works

Penetration of various types of distributed energy resources (DERs) like solar, wind, and plug-in hybrid electric vehicles (PHEVs) onto the distribution grid is on the rise. There is a corresponding increase in power quality problems and intermittencies on the distribution grid. In order to reduce the intermittencies and improve the power quality of the distribution grid, an ultracapacitor (UCAP) integrated power conditioner is proposed in this paper. UCAP integration gives the power conditioner active power capability, which is useful in tackling the grid intermittencies and in improving the voltage sag and swell compensation. UCAPs have low energy density, high-power density, …

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Novel Through-Silicon-Via Inductor-Based On-Chip Dc-Dc Converter Designs In 3d Ics, Umamaheswara Rao Tida, Cheng Zhuo, Yiyu Shi Oct 2014

Novel Through-Silicon-Via Inductor-Based On-Chip Dc-Dc Converter Designs In 3d Ics, Umamaheswara Rao Tida, Cheng Zhuo, Yiyu Shi

Electrical and Computer Engineering Faculty Research & Creative Works

There has been a tremendous research effort in recent years to move DC-DC converters on chip for enhanced performance. However, a major limiting factor to implementing on-chip inductive DC-DC converters is the large area overhead induced by spiral inductors. Thus, we propose using through-silicon-vias (TSVs), a critical enabling technique in three-dimensional (3D) integrated systems, to implement on-chip inductors for DC-DC converters. While existing literature show that TSV inductors are inferior compared with conventional spiral inductors due to substrate loss for RF applications, in this article, we demonstrate that it is not the case for DC-DC converters, which operate at relatively …

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Enhanced Rare-Region Effects In The Contact Process With Long-Range Correlated Disorder, Ahmed K. Ibrahim, Hatem Barghathi, Thomas Vojta Oct 2014

Enhanced Rare-Region Effects In The Contact Process With Long-Range Correlated Disorder, Ahmed K. Ibrahim, Hatem Barghathi, Thomas Vojta

Physics Faculty Research & Creative Works

We investigate the nonequilibrium phase transition in the disordered contact process in the presence of long-range spatial disorder correlations. These correlations greatly increase the probability for finding rare regions that are locally in the active phase while the bulk system is still in the inactive phase. Specifically, if the correlations decay as a power of the distance, the rare-region probability is a stretched exponential of the rare-region size rather than a simple exponential as is the case for uncorrelated disorder. As a result, the Griffiths singularities are enhanced and take a non-power-law form. The critical point itself is of infinite-randomness …

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The Missouri Miner, September 25, 2014 Sep 2014

The Missouri Miner, September 25, 2014

The Missouri Miner Newspaper

No abstract provided.

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Dmctcp: Desynchronized Multi-Channel Tcp For High Speed Access Networks With Tiny Buffers, Cheng Cui, Lin Xue, Chui Hui Chiu, Praveenkumar Kondikoppa, Seung Jong Park Sep 2014

Dmctcp: Desynchronized Multi-Channel Tcp For High Speed Access Networks With Tiny Buffers, Cheng Cui, Lin Xue, Chui Hui Chiu, Praveenkumar Kondikoppa, Seung Jong Park

Computer Science Faculty Research & Creative Works

The past few years have witnessed debate on how to improve link utilization of high-speed tiny-size buffer routers. Widely argued proposals for TCP traffic to realize acceptable link capacities mandate: (i) over-provisioned core link bandwidth; and (ii) non-bursty flows; and (iii) tens of thousands of asynchronous flows. However, in high-speed access networks where flows are bursty, sparse and synchronous, TCP traffic suffer severely from routers with tiny buffers. We propose a new congestion control algorithm called Desyn-chronized Multi-Channel TCP (DMCTCP) that creates a flow with multiple channels. It avoids TCP loss synchronization by desynchronizing channels, and it avoids sending rate …

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Investigating The Fractal Nature Of Individual User Netflow Data, Levi Malott, Sriram Chellappan Sep 2014

Investigating The Fractal Nature Of Individual User Netflow Data, Levi Malott, Sriram Chellappan

Computer Science Faculty Research & Creative Works

Modeling and characterizing Internet traffic has been a widely studied problem since the conception of the Internet. The self-similar, bursty nature of the traffic has led to a number of conventional statistical models that unfortunately provide relatively weak modeling power. Recently, fractal analysis techniques have emerged to better characterize and model Internet traffic data. However, past research studies have focused on describing and quantifying the fractal nature of Internet traffic on user groups, instead of a single user. In this paper the authors investigate the issue of individual users exhibiting fractal (self-similar behavior) behavior across multiple application types. Using real …

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E-Darwin: Energy Aware Disaster Recovery Network Using Wifi Tethering, Mayank Raj, Krishna Kant, Sajal K. Das Sep 2014

E-Darwin: Energy Aware Disaster Recovery Network Using Wifi Tethering, Mayank Raj, Krishna Kant, Sajal K. Das

Computer Science Faculty Research & Creative Works

In this paper, we propose a novel architecture called Energy Aware Disaster Recovery Network using Wi-Fi Tethering (E-DARWIN). The underlying idea is to make use of Wi-Fi Tethering technology ubiquitously available on wireless devices, like smartphones and tablets, to set up an ad hoc network for data collection in disaster scenarios. To this end, we design novel mechanisms, which aid in autonomous creation of the ad hoc network, distribution of data capturing task among the devices, and collection of data with minimum delay. Specifically, we design and implement a distributed coalition formation game for distributing the data capturing task among …

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Optimal Pmu Placement For Identification Of Multiple Power Line Outages In Smart Grids, Jie Wu, Jinjun Xiong, Prasenjit Shil, Yiyu Shi Sep 2014

Optimal Pmu Placement For Identification Of Multiple Power Line Outages In Smart Grids, Jie Wu, Jinjun Xiong, Prasenjit Shil, Yiyu Shi

Electrical and Computer Engineering Faculty Research & Creative Works

Placing appropriate numbers of PMUs is critical to collect phase angle data for best identifying multiple line outages in wide-area transmission system, because of high deployment costs. This work focuses on exploring the global optimal strategy of PMU deployment for maximizing the average identification capability of multiple line outages. Inspired by Kullback-Leibler (KL) distance, this paper proposes the closed-form mathematical model to describe the average identification capability of multiple simultaneous line outages. Using IEEE 14-bus system, the optimal trade-off between the average identification capability and the number of PMUs is characterized. The proposed model successfully portrays the statistical identification performance …

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Performance Analysis Of Real-Time Traffic Over 802.11n Wireless Local Area Networks: An Experimental Study, John Podolanko, Sajib Datta, Sajal K. Das Sep 2014

Performance Analysis Of Real-Time Traffic Over 802.11n Wireless Local Area Networks: An Experimental Study, John Podolanko, Sajib Datta, Sajal K. Das

Computer Science Faculty Research & Creative Works

In this paper, we describe a practical model of analyzing the performance of 802.11n Wireless Local Area Networks (WLANs) carrying real-time voice over IP (VoIP) traffic. In particular, we determine the response-time and packet loss of client nodes using traffic generators and network monitors. We demonstrate that there exists a correlation between the number of VoIP calls on a WLAN and the response time and packet loss between the nodes. We also determine maximum number of calls that can be handled on a WLAN before call quality is degraded. In addition, we calculate bandwidth utilization of the WLAN based on …

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Faculty Senate Minutes September 18, 2014, Missouri University Of Science And Technology Faculty Senate Sep 2014

Faculty Senate Minutes September 18, 2014, Missouri University Of Science And Technology Faculty Senate

Minutes & Agendas

No abstract provided.

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