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Conferences

Differential Delays Between Two Geodetic GPS Receivers for L1 and L2 Code and Carrier Signals

May 19, 2008

Author(s)

Marc A. Weiss, Megan Hottovy

Two geodetic-type receivers of Global Positioning System (GPS) satellite signals of different manufacture were connected with a splitter to the same antenna for...

Time and Frequency Transfer Using a WAAS Satellite with L1 and L5 Code and Carrier

May 19, 2008

Author(s)

Marc A. Weiss, P Fenton, Edward Powers, A. Kropp, Raymond Pelletier

Two Wide Area Augmentation System (WAAS) satellites are now transmitting the standard L1 and L5 carriers and codes of the Global Positioning System (GPS). Since...

On the Use of Dipole Models to Correlate Emission Limits Between EMC Test Facilities

May 19, 2008

Author(s)

Perry F. Wilson

Simple formulas are developed that enable emission limits from one EMC facility type to be translated to other EMC facility types. Facility types considered are...

ER Simulation Prototypes for Incident Management Training

May 19, 2008

Author(s)

Guodong Shao, Charles R. McLean

First responders and incident management personnel need better training resources to prepare for future disasters. Live training exercises while valuable are...

Homeland Security Simulation Domain: A Needs Analysis Overview

May 19, 2008

Author(s)

Charles R. McLean, Sanjay Jain, Yung-Tsun T. Lee

The effective use of modeling, simulation, and analysis (MSA) applications could greatly enhance our nation s ability to achieve homeland security goals. The...

Development Life Cycle and Tools for Data Exchange Specification

May 19, 2008

Author(s)

Katherine C. Morris, Puja Goyal, Simon P. Frechette

In enterprise integration, a data exchange specification is an architectural artifact that evolves along with the business. Developing and maintaining a...

Capacity of Random Wireless Networks: Impact of Cooperative Network Coding

May 19, 2008

Author(s)

Yi Qian, Kejie Lu, Shengli Fu

The throughput capacity of random wireless networks has been studied extensively in the literature. Nevertheless, most existing studies are based on the...

Long distance optical frequency transfer over fiber: predicting the frequency stability from the fiber noise

May 19, 2008

Author(s)

Nathan R. Newbury, Paul A. Williams, William C. Swann

We have recently demonstrated the coherent transfer of an optical signal over a 251 km link of optical fiber using the standard Doppler-cancellation approach to...

The Role of Folding in the Degradation of Ballistic Fibers

May 19, 2008

Author(s)

Walter G. McDonough, Gale A. Holmes, Jae Hyun Kim, Derek L. Ho

Research has indicated that the folding of ballistic fibers comprising soft body armor may be a factor in the performance deterioration that has been observed...

A Line-Based Obstacle Avoidance Technique for Dexterous Manipulator Operations

May 19, 2008

Author(s)

Nicholas A. Scott, Craig R. Carignan

Cameras are often used for visual servoing or realtime mapping of the external environment in both autonomous and teleoperated tasks with a dexterous...

Dark Resonance in Bichromatic Linearly Polarized Optical Field on Cs D₁ Line

May 19, 2008

Author(s)

Ken-ichi Watabe, Takeshi Ikegami, Akifumi Takamizawa, Shinya Yanagimachi, Shin-ichi Ohshima, Svenja A. Knappe

We describe a simple method for observing high-contrast coherent population trapping signals on the Cs D 1 line. The high-contrast signals were achieved by use...

ECS Transactions

May 18, 2008

Author(s)

Yaw S. Obeng, Stephen Knight, Joaquin (. Martinez

Nanoelectronics require the introduction of several new uncharacterized material(s) combinations and new processing techniques. The critical metrology and...

Long distance optical frequency transfer over fiber: predicting the frequency stability from the fiber noise

May 18, 2008

Author(s)

Nathan R. Newbury, Paul A. Williams, William C. Swann

We have recently demonstrated the coherent transfer of an optical signal over a 251 km link of optical fiber by use of the standard Doppler-cancellation...

Progress in the Development and Performance of a High Frequency 4 K Stirling-Type Pulse Tube Cryocooler

May 17, 2008

Author(s)

Peter E. Bradley, Ray Radebaugh, Isaac Garaway

Presently we are in the development process for a 4 K Stirling-type pulse tube cryocooler to support cooling requirements for a mobile THz detector system. In...

Aminoxyl (nitroxyl)Radicals in the Decomposition of RDX

May 13, 2008

Author(s)

Karl K. Irikura

The explosive RDX (1,3,5-trinitrohexahydro-s-triazine) is thought to decompose by homolytic N-N bond cleavage, among other possible initiation reactions...

Relating Taxonomies with Regulations

May 13, 2008

Author(s)

Chin P. Cheng, Jiayi Pan, Gloria T. Lau, Kincho H. Law, Albert T. Jones

Increasingly, taxonomies are being developed for a wide variety of industrial domains and specific applications within those domains. These taxonomies attempt...

Sensor Network based on IEEE 1451.0 and IEEE p1451.2-RS232

May 12, 2008

Author(s)

Yuyin Song, Kang B. Lee

The Institute of Electrical and Electronics Engineers (IEEE) 1451 family of standards defines a set of common communication interfaces for connecting smart...

Impact of Signaling Load on the UMTS Call Blocking/Dropping

May 11, 2008

Author(s)

Yi Qian, David Tipper, Saowaphak Sasanus

Radio resources in the third generation (3G) wireless cellular networks (WCNs) such as the universal mobile telecommunications system (UMTS) network is limited...

Design Secure and Application-Oriented VANET

May 11, 2008

Author(s)

Yi Qian, Nader Moayeri

Vehicular ad hoc network (VANET) is recognized as an important component of Intelligent Transportation Systems. The main benefit of VANET communication is seen...

Characterization of Mechanical Properties of Epoxy Nanocomposites Using Functionalized Clays and Layered Double Hydroxides

May 8, 2008

Author(s)

Jae Hyun Kim, Mickey Richardson, Gale A. Holmes

THE ROLE OF CAMERA NETWORKS IN CONSTRUCTION AUTOMATION

May 7, 2008

Author(s)

Itai Katz, Kamel S. Saidi, Alan M. Lytle

Due to the complexity and variability of capital construction sites, real-time monitoring remains an elusive goal. As unit price continues to fall, camera...

Introducing Sustainability Early into Manufacturing Process Planning

May 7, 2008

Author(s)

Mahesh Mani, Kevin W. Lyons, Sudarsan Rachuri, Eswaran Subrahmanian, Ram D. Sriram

In response to the global trend towards implementing sustainable manufacturing practices, we put forth an exploratory approach that uses energy monitoring as a...

The Surprising Affects of Strain on the Long Term Rheology of Filled Viscoelastic Solids (Building Joint Sealant)

May 7, 2008

Author(s)

Donald L. Hunston, Kar T. Tan, Christopher C. White

Filled viscoelastic solids, have been used for the last 40 years as building sealants to separate indoor from outdoor environments. The most important property...

Experimental Implementation of 1310 nm Differential Phase Shift QKD System with Up-conversion Detectors

May 6, 2008

Author(s)

Lijun Ma, Hai Xu, Tiejun Chang, Oliver T. Slattery, Xiao Tang

We have experimentally implemented a differential phase shift quantum-key distribution system with up-conversion detectors operating at 2.5 Gbps clock rate. A...

Detection-time-bin-shift Polarization Encoding Quantum Key Distribution System

May 6, 2008

Author(s)

Lijun Ma, Tiejun Chang, Xiao Tang

A detection-time-bin-shift scheme for polarization encoding QKD is proposed. This scheme can reduce cost and overcome the security loss caused by dead-time and...

EVALUATION OF MULTI-SAMPLE MICRO-CAPILLARY RHEOMETER

May 5, 2008

Author(s)

Doyoung Moon, Anthony J. Bur, Kalman D. Migler

We present a Multi-sample Micro-capillary Rheometer (MMR) which is capable of measurements over a broad range of temperatures, viscosities and shear rates. The...

Improving squeezing purity from a KNbO³ crystal by temperature tuning

May 4, 2008

Author(s)

Thomas Gerrits, Tracy S. Clement, Scott Glancy, Richard P. Mirin, Sae Woo Nam, Emanuel Knill

We show a method to increase the purity of a squeezed state generated by a femtosecond laser and down-conversion crystal. The method relies on temperature...

Practical performance limits on optical frequency transfer over fiber optic links

May 4, 2008

Author(s)

Paul A. Williams, William C. Swann, Nathan R. Newbury

We present theory and experiment quantifying the limitations to stable transport of optical frequencies over optical fiber. These are fundamental fiber noise...

Broadband, frequency comb spectroscopy

May 4, 2008

Author(s)

Ian R. Coddington, William C. Swann, Nathan R. Newbury

A stabilized frequency comb provides a broadband array of highly resolved comb lines. Using a multiheterodyne technique, we measure the amplitude and phase of...

Optical Microchip Detection of Nuclear Magnetic Resonance

May 4, 2008

Author(s)

M Ledbetter, I Savukov, D Budker, Vishal Shah, Svenja A. Knappe, John Kitching, S Xu, D Michalak, A Pines

We demonstrate optical detection of nuclear magnetic resonance on a microchip. A theoretical optimization indicates detection limits that are competitive with...

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