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Single Shear Bolted Connection Tests Of G500 1.20mm Thin Sheet Steel At Elevated Temperatures, Shu Yan, Ben Young Nov 2010

Single Shear Bolted Connection Tests Of G500 1.20mm Thin Sheet Steel At Elevated Temperatures, Shu Yan, Ben Young

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

The current design rules on bolted connections of thin sheet steels for cold-formed steel structures are applicable for ambient temperature condition only. Research on such kind of connections at high temperatures is limited. In this study, 47 single shear bolted connection specimens fabricated from G500 1.20mm thin sheet steel and 9 coupon specimens were conducted by using steady state test method in the temperature range from 22ºC to 900ºC. Two failure modes were observed in the single shear bolted connection tests, namely the net section tension, and bearing . The test results were compared with the predicted values calculated from …

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Strength Prediction Model For Power Acutated Fasteners Connecting Steel Members In Tension And Shear-North American Applications, J. R. Ubejd Mujagic, Perry S. Green, William G. Gould Nov 2010

Strength Prediction Model For Power Acutated Fasteners Connecting Steel Members In Tension And Shear-North American Applications, J. R. Ubejd Mujagic, Perry S. Green, William G. Gould

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Power-actuated fasteners (PAFs), also referred to as pins, are small nail-like or threaded stud t ype connectors. They can be used in conjunction with several materials and in a number of different applications. Typical applications in steel include attachments of deck sh eeting or diaphragms, architectural or mechanical components, or miscellaneous support brackets or connections to supporting steel members. Traditionally, the design strength of the connections featuring power-actuated fasteners has been determined through standardized testing protocols. In the United States, this protocol is embodied in the American Society for Testing and Materials (ASTM) Standard E 1190. The purpose of this …

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Study On The Behavior Of Cold-Formed Steel Angle Tension Members, R. Padmapriya, S. Kandasamy Nov 2010

Study On The Behavior Of Cold-Formed Steel Angle Tension Members, R. Padmapriya, S. Kandasamy

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Cold-formed steel tension members with bolted end connections are frequently used in a variety of structures such as trusses, transmission towers etc. Among all the shapes, angles are widely used. When angle sections are connected with gusset plates and eccentrically loaded, their ultimate load- carrying capacity is influenced by the effect of shear lag. This paper presents the details of an experimental and numerical investigation with a primary objective of studying the effect of shear lag on cold-formed steel single and double angles subjected to tension. Seventy-two single plain and lipped angles made from thicknesses 2,3 and 4 mm connected …

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Test And Finite Element Analysis On Distortional Buckling Of Cold-Formed Thin-Walled Steel Lipped Channel Columns, Xingyou Yao, Yanli Guo, Zhiguang Huang Nov 2010

Test And Finite Element Analysis On Distortional Buckling Of Cold-Formed Thin-Walled Steel Lipped Channel Columns, Xingyou Yao, Yanli Guo, Zhiguang Huang

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

High-strength cold-formed thin-walled steel sections have been widely used in the recent several years. However, distortional buckli ng or interaction between it and local buckling can occur for high strength cold-formed thin- walled steel members. This paper desc ribes a series of compression tests performed on lipped channel section columns with V-shape intermediate stiffener in the web and flanges fabricated from cold-formed high strength steel of thickness 0.48 and 0.6mm with nominal yield stress 550MPa. The lipped channel sections were tested to failure with both ends of the columns fixed. The test results of 16 specimens show that the local …

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Experimental Evaluation Of A Vehicular Access Door Subjected To Hurricane Force Wind Pressures, Tian Gao, Christopher D. Moen Nov 2010

Experimental Evaluation Of A Vehicular Access Door Subjected To Hurricane Force Wind Pressures, Tian Gao, Christopher D. Moen

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

This paper describes an experimental study of a rolling sheet door under uniform positive and negative pressure, i.e. wind pushing the door into the building and wind suction pulling the door out of the building. Rolling sheet vehicular access doors are a commonly provided feature in metal building systems. The edges of the door slide freely during regular usage in tracks connected to cold-formed steel jambs. During an extreme wind event, the door engages the jambs with wind locks distributed along both vertical edges of the door to prevent excessive out-of-plane deformation. The goal of the study was to measure …

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Experimental Investigation On 6 Feet Wide Cold-Formed Steel Framed Shear Walls With Steel Sheet Sheathing, Cheng Yu, Yujie Chen Nov 2010

Experimental Investigation On 6 Feet Wide Cold-Formed Steel Framed Shear Walls With Steel Sheet Sheathing, Cheng Yu, Yujie Chen

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

An AISI sponsored research project on the performance of 6 feet wide cold- formed steel (CFS) framed shear walls with single sided steel sheet sheathing is recently completed at the Un iversity of North Texas. This research project is aimed at determining the required seismic detailing for 6 feet wide 8 feet high CFS shear walls using two steel sheets, one is 4 feet wide, and the other is 2 feet wide. Both monotonic and cyclic tests are conducted and various parameters in the framing and sheathing details are considered in the test program. Those parameters include framing member thickne …

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Innovative Damage Control Systems Using Replaceable Energy Dissipating Steel Fuses For Cold-Formed Steel Structures, Fuminobu Ozaki, Yoshimichi Kawai, Hiroshi Tanaka, Tadayoshi Okada, Ryoichi Kanno Nov 2010

Innovative Damage Control Systems Using Replaceable Energy Dissipating Steel Fuses For Cold-Formed Steel Structures, Fuminobu Ozaki, Yoshimichi Kawai, Hiroshi Tanaka, Tadayoshi Okada, Ryoichi Kanno

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

This paper describes the development of innovative seismic technologies for cold-formed steel structures; a rocking steel shear wall system with replaceable energy dissipating steel fuses for low rise housing units. In this system, the fuses are placed at the base of a folded-steel sheet wall connecting an anchor bolt and the steel sheet wall. It is designed so that most of the earthquake energy can be dissipated by plastic deformation of the fuse elements, while the shear wall remains intact and resists vertical and horizontal forces caused by large earthquakes. As expected in seismic events, the fuses at the base …

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Shear Behaviors Of Light-Gauge Composite Walls Under Monotonic And Cyclic Loading, Yuangqi Li, Fei Liu, Zuyan Shen, Xingyou Yao Nov 2010

Shear Behaviors Of Light-Gauge Composite Walls Under Monotonic And Cyclic Loading, Yuangqi Li, Fei Liu, Zuyan Shen, Xingyou Yao

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Shear properties of cold-formed thin-walled steel composite walls are af- fected by many factors, including the section of light-gauge studs, the space of self-drilling screws, the panel on both sides of wall, the distribution of hold down device, etc, which makes it is difficult to estimate the shear strength. In this paper, twelve Q345 light-gauge composite wall specimens with a dimension of 2400mm wide and 3000mm high were designed for shear capacity test. Two kinds of panel combination in the specimens were considered, one is gypsum board on one side and OSB board on another side, the other is gypsum …

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Some Aspects On Seismic Design On Frames Designed With Cold Formed Steel Shapes, Gabriel Valencia Nov 2010

Some Aspects On Seismic Design On Frames Designed With Cold Formed Steel Shapes, Gabriel Valencia

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

The response of cold-formed steel structures to seismic excitations is not the same as that of structures designed with rolled shapes, in fact, the seismic design codes require that the shapes, meet minimum width/thickness ratios, which virtually no commercial cold formed steel shapes meet, so the design of structures with these elements is excluded from those codes. Different types of beam- to -column connections, made using cold-formed steel shapes have been tested, in order to establish their response to cyclic loads of increasing magnitude. The analysis of these connections using theoretical models with Finite Element Analysis (FEA), and through monotonic …

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Feasibility Study For A Repetitive Member Factor For Cold-Formed Steel Framing Systems, S. Clayton, S. F. Stephens Nov 2010

Feasibility Study For A Repetitive Member Factor For Cold-Formed Steel Framing Systems, S. Clayton, S. F. Stephens

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Cold-formed steel has become a preferred building material for structural framing in many different types of structures, commonly used as repetitive members such as floor joists, roof rafters, roof trusses and wall studs. For wood framed structures with repetitive members, a repetitive member factor increases the allowable bending stress from 1.00 to 1.50 times the reference design value, depending on both the type of material and the type of load. Currently, however, the bending strength of cold-formed steel repetitive members is not permitted to be increased, even though the method of framing is quite similar to that of wood except …

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Improvements To The Fire Performance Of Light Gauge Steel Floor Systems, B. Baleshan, M. Mahendran Nov 2010

Improvements To The Fire Performance Of Light Gauge Steel Floor Systems, B. Baleshan, M. Mahendran

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Light gauge steel frame (LSF) struct ures are increasingly used in commercial and residential build ings because of their non- combustibility, dimensional stability and ease of installation. A common application is in floor-ceiling systems. The LSF floor-ceiling systems must be designed to serv e as fire compartment boundaries and provide adequate fire resistance. Fire-rated floor-ceiling assemblies have been increasingly used in buildings. However, limited research has been undertaken in the past and hence a thorough understanding of their fire resistance behaviour is not available. Recently a new composite floor-ceilin g system has been developed to provide higher fire rating. But …

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Evaluation Of The Flexural Strength Of Cold-Formed Steel Studs With Embossed Flanges, K. B. Reynolds, S. F. Stephens, Roger A. Laboube Nov 2010

Evaluation Of The Flexural Strength Of Cold-Formed Steel Studs With Embossed Flanges, K. B. Reynolds, S. F. Stephens, Roger A. Laboube

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

New advances and improvements in the manufacture of cold-formed steel shapes are continually being made. One such advancement in the manufacturing of steel studs is flange embossing, a technique used to facilitate the installation of drywall screws into the stud flange. Currently, embossed flanges are not specifically addressed in the North American Specification for the Design of Cold-Formed Steel Structural Members (AISI S100), thereby drawing into question the use of current design equations from being used to calculate member properties for an embossed stud. A limited experimental investigation was undertaken to determine if light flange embossing affects the nominal flexural …

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Overview Of Recent Changes And Additions To Aisi Standards, Helen Chen, Roger Brockenbrough, Richard Haws Nov 2010

Overview Of Recent Changes And Additions To Aisi Standards, Helen Chen, Roger Brockenbrough, Richard Haws

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Since the publication of the 2007 edit ions of AISI standards, changes and additions have been made to some of the standards. This paper will provide an overview of the majo r revisions to those standards.

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Review Of Aisi Design Guide For Cold-Formed Steel Purlin Roof Framing Systems-Component Stiffness Method, Michael W. Seek Nov 2010

Review Of Aisi Design Guide For Cold-Formed Steel Purlin Roof Framing Systems-Component Stiffness Method, Michael W. Seek

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

This paper reviews the Component Stiffness Method for determining anchorage forces in roof systems as presen ted in Chapter 5 of the new AISI Design Guide for Cold-Formed Steel Purlin Roof Framing Systems . The four steps in the general methodology of the component stiffness method are presented. First, the development of forces requiring an chorage in purlin roof systems is discussed. Next, calculation of the stif fness of each of the components of the roof system and the procedure for distributing these forces through the system is presented. The final step, evaluation of the effectiveness of the anchors in …

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Steel Roof Deck Diaphragms On Cold-Formed Steel Framing, Thomas Sputo Nov 2010

Steel Roof Deck Diaphragms On Cold-Formed Steel Framing, Thomas Sputo

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Cfsei Educating North American Practitioners In Principles Of Cfs Framing Design, W. D. Allen Nov 2010

Cfsei Educating North American Practitioners In Principles Of Cfs Framing Design, W. D. Allen

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Educating North American structural engi neers in the principles of cold-formed steel (CFS) design in general, and about CFS framing in particular, has a unique set of challenges. The undergraduate curri cula virtually ignore the subjects, and only a handful of graduate programs address the issue. Several industry associations have existed for engineers, but none specialize in CFS framing. Several organizations existed in the co ld-formed steel framing marketplace, but none were set up to accommodate engi neers. This paper will review the formation, development, growth, and maturation of one such education- and engineer-focused organization within the framework of the …

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Screw Connections Subject To Tension Pull-Out And Shear Forces, R. M. Francka, R. A. Laboube Nov 2010

Screw Connections Subject To Tension Pull-Out And Shear Forces, R. M. Francka, R. A. Laboube

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Currently, the behavior of screw connections subject to combined tension pull- out and shear forces is not well understood. An experimental study was conducted at Missouri Un iversity of Science and Technology to better understand the relationship or interac tion between these forces. The test program evaluated four parameters that may influence the behavior of pure tension and pure shear in screw connections: the thickness of the sheet not in contact with the screw head, the ultimate strength of the steel, the ductility of the steel, and the screw diameter. Based on the behavior observed and analysis of the test …

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Shear Behavior Of Screw Connections For Cold-Formed Thin-Walled Steel Structures, Yuangqi Li, Xingyou Yao Nov 2010

Shear Behavior Of Screw Connections For Cold-Formed Thin-Walled Steel Structures, Yuangqi Li, Xingyou Yao

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Self-drilling screws are the primary mean s to fasten cold-formed thin-walled steel members in construction. There are several failure modes for shear connections with self-drilling screws, including screw tilting, hole bearing, edge tearing, tensile fracture in net s ection of connected elements and shear fracture of screws. Meanwhile, the “g roup effect” will exist when a large number of screws are used in a shear connection. A series of tests (75 specimens) on single lap shear connections with self-drilling screws has been carried out and the results report ed in this paper. The end distance, screw spacing, pattern of screws …

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20th International Specialty Conference: Recent Research And Developments In Cold-Formed Steel Structures, Wei-Wen Yu Center For Cold-Formed Steel Structures Nov 2010

20th International Specialty Conference: Recent Research And Developments In Cold-Formed Steel Structures, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Signal/Power Integrity Analysis For Multilayer Printed Circuit Boards Using Cascaded S-Parameters, Francesco De Paulis, Yaojiang Zhang, Jun Fan Nov 2010

Signal/Power Integrity Analysis For Multilayer Printed Circuit Boards Using Cascaded S-Parameters, Francesco De Paulis, Yaojiang Zhang, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

A cascaded S-parameter method is proposed in this paper for signal/power integrity analysis of multiple vias in a multilayer printed circuit board (PCB). the proposed method enables efficient and accurate construction and simulation of physics-Based via model for complex multilayer PCB structures involving vias. the physics-Based via model describes the parasitic effects near each via region as well as mutual coupling among different vias. in this model, each via portion between two parallel plates is regarded as a three-port network with two coaxial ports and one radial port between the two plates. a procedure is first developed to obtain the …

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Dynamic Response Improvement In A Buck Type Converter Using Capacitor Current Feed-Forward Control, Lisheng Shi, Mehdi Ferdowsi, Mariesa Crow Nov 2010

Dynamic Response Improvement In A Buck Type Converter Using Capacitor Current Feed-Forward Control, Lisheng Shi, Mehdi Ferdowsi, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

The dynamic performance of dc-dc power electronic converters is mainly determined by the output filtering capacitor and inductor, control loop(s) compensator(s), and the voltage conversion ratio. Normally, a larger capacitance and/or a smaller inductance are not recommended because of the extra cost and size of the capacitor and/or the increment of the inductor current ripple. The capacitor current feed-forward method has gained popularity due its fast dynamic response, simpler structure, and less sensing losses. In applications where a large voltage conversion ratio is needed, dynamic response for a load step-down scenario is worse than that of a load step-up condition. …

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Bandwidth-Efficient Frequency-Domain Equalization For Single Carrier Multiple-Input Multiple-Output Underwater Acoustic Communications, Jian Zhang, Yahong Rosa Zheng Nov 2010

Bandwidth-Efficient Frequency-Domain Equalization For Single Carrier Multiple-Input Multiple-Output Underwater Acoustic Communications, Jian Zhang, Yahong Rosa Zheng

Electrical and Computer Engineering Faculty Research & Creative Works

This paper proposes a single carrier (SC) receiver scheme with bandwidth-efficient frequency-domain equalization (FDE) for underwater acoustic (UWA) communications employing multiple transducers and multiple hydrophones. Different from the FDE methods that perform FDE on a whole data block, the proposed algorithm implements an overlapped-window FDE by partitioning a large block into small subblocks. a decision-directed channel estimation scheme is incorporated with the overlapped-window FDE to track channel variations and improve the error performance. the proposed algorithm significantly increases the length of each block and keeps the same number of training symbols per block, hence achieving better data efficiency without performance …

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Applied Technologies And Prospects Of Conformance Control Treatments In China, Yuzhang Liu, Baojun Bai, Yefei Wang Nov 2010

Applied Technologies And Prospects Of Conformance Control Treatments In China, Yuzhang Liu, Baojun Bai, Yefei Wang

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

China is the largest user of chemical-based conformance control treatments and a series of technologies have been successfully developed and deployed in recent years. This paper first shows the milestones of development and application of conformance control technologies in China. Then integrated conformance control technologies are reviewed followed by the lessons we have learned, and then a few major specific conformance control technologies are addressed, including tracer injection and channels explanation, potentiometric testing to identify areal sweep efficiency, Pressure Index (PI) decisionmaking technology to select well candidate, complementary decision-making technology to select well candidate and design application parameters, and major …

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Search For Gravitational Waves From Compact Binary Coalescence In Ligo And Virgo Data From S5 And Vsr1, J. Abadie, Marco Cavaglia, For Full List Of Authors, See Publisher's Website. Nov 2010

Search For Gravitational Waves From Compact Binary Coalescence In Ligo And Virgo Data From S5 And Vsr1, J. Abadie, Marco Cavaglia, For Full List Of Authors, See Publisher's Website.

Physics Faculty Research & Creative Works

We report the results of the first search for gravitational waves from compact binary coalescence using data from the Laser Interferometer Gravitational-Wave Observatory and Virgo detectors. Five months of data were collected during the Laser Interferometer Gravitational-Wave Observatory's S5 and Virgo's VSR1 science runs. The search focused on signals from binary mergers with a total mass between 2 and 35M⊙. No gravitational waves are identified. The cumulative 90%-confidence upper limits on the rate of compact binary coalescence are calculated for nonspinning binary neutron stars, black hole-neutron star systems, and binary black holes to be 8.7 x 10- …

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Stability And Charge Transfer Levels Of Extrinsic Defects In Linbo₃, Haixuan Xu, Aleksandr V. Chernatynskiy, Donghwa Lee, Susan Sinnott, Venkatraman Gopalan, Volkmar Dierolf, Simon R. Phillpot Nov 2010

Stability And Charge Transfer Levels Of Extrinsic Defects In Linbo₃, Haixuan Xu, Aleksandr V. Chernatynskiy, Donghwa Lee, Susan Sinnott, Venkatraman Gopalan, Volkmar Dierolf, Simon R. Phillpot

Physics Faculty Research & Creative Works

The technologically important incorporation of extrinsic defects (Mg2+, Fe2+, Fe3+, Er3+, and Nd3+) in LiNbO3 is investigated using density-functional theory combined with thermodynamic calculations. Defect energies, the charge compensation mechanisms, and charge transfer levels, are determined for congruent and stoichiometric compositions. In general, under congruent (Nb2O5-rich) conditions impurities occupy lithium sites, compensated by lithium vacancies. Under stoichiometric (Li2O-rich) conditions, impurities occupy both lithium and niobium sites. The effects of the concentration of Mg on the dominant defect and site occupancy are analyzed. In …

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Research Agenda For Transportation Infrastructure Preservation And Renewal: Conference Report, Joseph L. Schofer, Leonard Evans, Michael P. Freeman, Larry L. Galehouse, Samer Madanat, Ali Maher, Sue Mcneil, John J. Myers, Robert L. Peskin, Butch Wlaschin Nov 2010

Research Agenda For Transportation Infrastructure Preservation And Renewal: Conference Report, Joseph L. Schofer, Leonard Evans, Michael P. Freeman, Larry L. Galehouse, Samer Madanat, Ali Maher, Sue Mcneil, John J. Myers, Robert L. Peskin, Butch Wlaschin

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

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A Thermal Simulation Process Based On Electrical Modeling For Complex Interconnect, Packaging, And 3di Structures, Lijun Jiang, Chuan Xu, Barry J. Rubin, Alan J. Weger, Alina Deutsch, Howard Smith, Alain Caron, Kaustav Banerjee Nov 2010

A Thermal Simulation Process Based On Electrical Modeling For Complex Interconnect, Packaging, And 3di Structures, Lijun Jiang, Chuan Xu, Barry J. Rubin, Alan J. Weger, Alina Deutsch, Howard Smith, Alain Caron, Kaustav Banerjee

Electrical and Computer Engineering Faculty Research & Creative Works

To reduce the product development time and achieve first-pass silicon success, fast and accurate estimation of very-large-scale integration (VLSI) interconnect, packaging and 3DI (3D integrated circuits) thermal profiles has become important. Present commercial thermal analysis tools are incapable of handling very complex structures and have integration difficulties with existing design flows. Many analytical thermal models, which could provide fast estimates, are either too specific or oversimplified. This paper highlights a methodology, which exploits electrical resistance solvers for thermal simulation, to allow acquisition of thermal profiles of complex structures with good accuracy and reasonable computation cost. Moreover, a novel accurate closed-form …

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A Novel Real-Time Approach To Unified Power Flow Controller Validation, Keyou Wang, Mariesa Crow, Bruce M. Mcmillin, Stan Atcitty Nov 2010

A Novel Real-Time Approach To Unified Power Flow Controller Validation, Keyou Wang, Mariesa Crow, Bruce M. Mcmillin, Stan Atcitty

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents the development of a real-time hardware/software laboratory to interface a soft real-time power system simulator with multiple unified power flow controllers (UPFC) via hardware-in-the-loop (HIL) to study their dynamic responses and validate control and placement approaches. This paper describes a unique laboratory facility that enables large-scale, soft real-time power system simulation coupled with the true physical behavior of a UPFC as opposed to the controller response captured by many other real-time simulators. The HIL line includes a synchronous machine, a UPFC, and a programmable load to reproduce the physical dynamics of the UPFC sub-network.

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Bio-Inspired Algorithms For Autonomous Deployment And Localization Of Sensor Nodes, Raghavendra V. Kulkarni, Ganesh K. Venayagamoorthy Nov 2010

Bio-Inspired Algorithms For Autonomous Deployment And Localization Of Sensor Nodes, Raghavendra V. Kulkarni, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

Optimal deployment and accurate localization of sensor nodes have a strong influence on the performance of a wireless sensor network (WSN). This paper considers real-time autonomous deployment of sensor nodes from an unmanned aerial vehicle (UAV). Such a deployment has importance, particularly in ad hoc WSNs, for emergency applications, such as disaster monitoring and battlefield surveillance. the objective is to deploy the nodes only in the terrains of interest, which are identified by segmentation of the images captured by a camera on board the UAV. Bioinspired algorithms, particle swarm optimization (PSO) and bacterial foraging algorithm (BFA), are presented in this …

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The Missouri Miner, October 28, 2010 Oct 2010

The Missouri Miner, October 28, 2010

The Missouri Miner Newspaper

No abstract provided.

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