| Conditional Reliability and the Identification of Communities |
09-Nov-2009 |
7 pages |
| Authors:
Charles J Colbourn; Violet R Syrotiuk; ARIZONA STATE UNIV TEMPE
|
 | This document reports on results obtained in the investigation of a collection of methods for using indirect measurements of usage patterns in communication networks with the goal of identifying communities of users. The primary methods developed include a generalization of connectivity-based network reliability measures to multiterminal resilience measures that permit a more detailed classification of types of communication; techniques for identifying indirect connections based on patterns of common usage rather ... |
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| Research on Nonlinear and Stochastic Dynamics with Defense Applications |
30-Mar-2009 |
13 pages |
| Authors:
Ying-Cheng Lai; ARIZONA STATE UNIV TEMPE
|
| The objectives of project were: (1) inducing chaos in electronic circuits and applications and (2) stochastic resonance and applications. In close collaboration with AFRL scientists, we addressed a number of basic issues associated with our previously developed method of resonant perturbations for inducing chaos. We also explored some fundamental issues in stochastic resonance, focusing on the interplay between phase synchronization and the resonance. We initiated a new area of research: ... |
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| Normalized Implicit Radial Models for Scattered Point Cloud Data without Normal Vectors |
23-Mar-2009 |
18 pages |
| Authors:
Gregory M Nielson; ARIZONA STATE UNIV TEMPE
|
| We describe some new methods for obtaining a mathematical representation of a surface that approximates a scattered point cloud, {(x y z ) i N} i i i , , = 1,L, without the use or need of normal vector data. The fitting surface is defined implicitly as the level set of a field function which is a linear combination of trivariate radial basis functions. Optimal approximations are based upon ... |
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| Environmental Effects on Fatigue Crack Growth in High Performance Aluminum Alloys |
13-Mar-2009 |
6 pages |
| Authors:
J J Williams; N Chawla; ARIZONA STATE UNIV TEMPE
|
| Aluminum alloys are used in a variety of structural applications, such as aircraft wings, fuselage, etc. In addition to cyclic mechanical loads, these alloys are often subjected to aggressive corrosive environments, e.g., salt water and moisture. Thus, a comprehensive understanding of the combined effects of cyclic mechanical loading and environmental effects is necessary. |
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| Analysis of Implicit Modeling of Complex Geometric Environments |
28-Feb-2009 |
29 pages |
| Authors:
Gregory M Nielson; ARIZONA STATE UNIV TEMPE
|
| 1. Developed methods for extracting mathematical surface description of urban/terrain implicitly defined from scattered point cloud data obtained from scanners and other detecting devices 2. Developed methods for parameterizing surfaces representing urban/terrain environments which are implicitly modeled. 3. Developed a custom software environment for simulating scanner output producing point cloud data sets. 4. Developed and analyzed adaptive, implicit mathematical methods for modeling data scanned from complex geometric environment. 5. Developed, ... |
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| Threshold Voltage Instability in A-Si:H TFTS and the Implications for Flexible Displays and Circuits |
Dec-2008 |
9 pages |
| Authors:
Z Li; E Forsythe; G Raupp; K Baugh; E Bawolek; N Darbanian; S Venugopal; R Shringarpure; L Clark; D Allee; D Morton; ARIZONA STATE UNIV TEMPE
|
| After a brief review of the characteristics of electrical stress degradation of flexible, amorphous silicon thin film transistors, the implications for various types of flexible circuitry including active matrix backplanes, integrated drivers and general purpose digital circuitry are examined. A circuit modeling tool that enables the prediction of complex circuit degradation is presented. Experimental results for a variety of flexible digital circuits including programmable logic arrays and memories are presented. ... |
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| Direct Fabrication of a-Si:H Thin Film Transistor Arrays on Plastic and Metal Foils for Flexible Displays |
Dec-2008 |
6 pages |
| Authors:
S M O'Rourke; D C Morton; G B Raupp; N Colaneri; J Haq; S M Venugopal; D R Allee; J P Kaminski; R Naujokaitis; J Dailey; D Bottesch; M Marrs; B P O'Brien; S K Ageno; E J Bawolek; C Moyer; D E Loy; E W Forsythe; ARIZONA STATE UNIV TEMPE
|
| In this paper we describe solutions to address critical challenges in direct fabrication of amorphous silicon thin film transistor (TFTs) arrays for high information content active matrix flexible displays for Army applications. For all flexible substrates a manufacturable handling protocol in automated display-scale equipment is required. For metal foil substrates the principal challenges are planarization and electrical isolation, and management of coefficient of thermal expansion induced stress (CTE mismatch) during ... |
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| Robustness and Survivability Issues in Wireless Ad Hoc Networks |
30-Nov-2008 |
17 pages |
| Authors:
Guoliang Xue; ARIZONA STATE UNIV TEMPE
|
| Significant contributions have been made in the course of this project. These results are published in 14 journal papers and 18 refereed conference papers. The journal papers appeared in prestigious journals such as IEEE/ACM Transactions on Networking, IEEE Transactions on Computers, IEEE Transactions on Wireless Communications, and IEEE Transactions on Vehicular Technology. The Conference papers appeared in IEEE INFOCOM (2005, 2006, 2007, 2008), ACM MobiHoc (2005), IEEE Military Communication Conference ... |
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| Prediction of Groundwater Quality Down-gradient of In Situ Permeable Treatment Barriers and Fully-remediated Source Zones |
01-Sep-2008 |
127 pages |
| Authors:
ARIZONA STATE UNIV TEMPE
|
| In situ permeable treatment barriers (PTBs) are designed such that contaminated groundwater flows through an engineered treatment zone within which contaminants are eliminated or the concentrations are significantly reduced. These systems are often considered for the containment of dissolved contaminant plumes, or for controlling the discharge and larger-scale impact of dissolved contaminants from source zones to aquifers. Previous studies have concluded that a better understanding of the subsequent improvement in ... |
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| Competitive Nurse Rostering and Rerostering |
MAY 2008 |
154 pages |
| Authors:
Michael V. Chiaramonte; ARIZONA STATE UNIV TEMPE
|
| Nurse rostering is the assignment of specific nurses to specific shifts for a future scheduling period. The work schedule that is created is called a roster. The reconstruction of a disrupted roster is called rerostering. When solving the rostering and rerostering problems there are two considerations: the organization's costs and the nurses preferences. Traditional solution methods, often based on integer programs (IP), have two short comings; first, they rely on ... |
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| Characterization and Prediction of Clear Air and Optical Stratospheric Turbulence for DoD High Altitude Platforms |
21 MAR 2008 |
52 pages |
| Authors:
Alex Mahalov; Basi Nicolaenko; ARIZONA STATE UNIV TEMPE
|
| Stratospheric Clear Air Turbulence (CAT) is a major challenge to the safety, controllability and flight path optimization of the Global Hawk, Predator and other Unmanned Aerial Vehicles (UAVs) and Platforms. Optical Turbulence (OT) layers impact on the polarization and focusing of laser beams in communication systems and the Airborne Laser (ABL). The completed fundamental research project investigated the microscale physics of the upper troposphere/lower stratosphere (UTLS), closely correlating field measurements, ... |
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| DNA Computing |
21 MAR 2008 |
6 pages |
| Authors:
Wayne D. Frasch; ARIZONA STATE UNIV TEMPE
|
| A microscopy system was acquired for molecular detection using molecular motor-driven nanodevices. This state of the art system incorporates a motorized stage that can move to successive adjacent fields of view, and stitch the digital color photos for analysis. The detection system utilizes the molecular motor attached to a slide and a gold nanorod that is visible by darkfield microscopy. Assembly of each nanodevice is dependent upon the presence of ... |
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| Coherent Doppler Lidar Deployment in the Canopy Horizontal Array Turbulence Study |
06-Feb-2008 |
15 pages |
| Authors:
Ronald J Calhoun; H J S Fernando; ARIZONA STATE UNIV TEMPE
|
| The PI's and ASU students/staff deployed their coherent Doppler lidar from May 9, 2007 to June 11, 2007 in support of the Canopy Horizontal Array Turbulence Study (CHATS) The experiment took place in a walnut orchard near Davis, California The overall purpose of the experiment was to investigate the character of within-canopy Sub-Filter-Scale motions The full experiment occurred in two segments: A) from March 18 - April 18, and B) ... |
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| Synthesis, Characterization, Properties and Performance of Novel Direct Band Gap Semiconductors |
08 MAY 2007 |
3 pages |
| Authors:
John Kouvetakis; ARIZONA STATE UNIV TEMPE
|
| The work performed using support from this grant has focused on the following: (1) the development of ZrB2 buffer layers and Si-Ge-Sn compliant templates grown directly upon Si (100), and (2) the demonstration of these systems in mismatched heteroepitaxy of tetrahedral semiconductors including III-V compounds and group IV materials with Si substrates. |
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| Visual Spatial Disorientation: Re-Visiting the Black Hole Illusion |
24 JAN 2007 |
31 pages |
| Authors:
Randall W. Gibb; ARIZONA STATE UNIV TEMPE
|
| Visual spatial disorientation (SD) is cited often as a contributor to aviation accidents. The black hole illusion (BHI), a specific type of featureless terrain illusion, is a leading type of visual SD experienced by pilots. A BHI environment refers not to the landing runway but the environment surrounding the runway and the lack of ecological cues for a pilot to proceed visually. The problem is that pilots, despite the lack ... |
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| Classification of Air Force Aviation Accidents: Mishap trends and Prevention |
02 JUN 2006 |
37 pages |
| Authors:
Randall W. Gibb; Wes Olson; ARIZONA STATE UNIV TEMPE
|
| This paper re-analyzed 124 United States Air Force aviation Class A mishaps using the new Department of Defense Human Factors Analysis and Classification System (DoD HFACS). DoD HFACS is organized in a hierarchical manner to identify causal factors at the organizational and supervisory level, preconditions for unsafe acts, and the acts themselves. Re-analysis of a sample of mishaps from 1992 - 2005 using the DoD HFACS framework was accomplished to ... |
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| Effect of Using High Signal-to-Noise Image Intensifier Tubes on Night Vision Goggle (NVG) Aided Visual Acuity |
MAY 2006 |
67 pages |
| Authors:
Keith D. Higginbotham; ARIZONA STATE UNIV TEMPE
|
| A night vision goggle (NVG) image intensifier (I2) tube's signal-to-noise ratio (SNR) determines the low-light resolution capability, therefore, the higher the SNR, the better the ability of the tube to resolve objects under low illumination conditions. Two NVG models were used to determine if visual performance would improve as a result of a goggle's higher SNR characteristic. The F4949G-TG goggles, equipped with 12 tubes utilizing thin-filmed technology allowing for a ... |
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| Research on Nonlinear Dynamics with Defense Applications |
APR 2006 |
16 pages |
| Authors:
Ying-Cheng Lai; ARIZONA STATE UNIV TEMPE
|
| The objectives of this project are: (1) inducing chaos in electronic circuits, and (2) anti-jamming with stochastic resonance. In close collaboration with AFRL scientists, we developed a general scheme to experimentally induce robust chaotic attractors in electronic circuits (Objective 1). For Objective 2, we discovered a measure to characterize stochastic resonance that has much higher sensitivity to noise variations than all existing measures. We expect it to be useful in ... |
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| Automatic Extraction and Coordination of Audit Data and Features for Intrusion and Damage Assessment |
31 MAR 2006 |
94 pages |
| Authors:
Nong Ye; ARIZONA STATE UNIV TEMPE
|
| Intrusion and damage assessment is an important step after intrusion detection. The goal of this research is to shorten time of constructing a coherent intrusion trace and assessing the damage through automatic extraction and coordination of audit data and features for intrusion and damage assessment. In this project, we develop the System- Fault-Risk framework to define cause-effect chains of intrusions as intrusion profiles and also classify intrusions. We create a ... |
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| Protection Conferred by recombinant Yersinia pestis Antigens Produced by a Rapid and Highly Scalable Plant Expression System |
24 JAN 2006 |
7 pages |
| Authors:
Luca Santi; Anatoli Giritch; Chad J. Roy; Sylvestre Marillonnet; Victor Klimyuk; Yuri Gleba; Robert Webb; Charles J. Arntzen; Hugh S. Mason; ARIZONA STATE UNIV TEMPE
|
| Plague is still an endemic disease in different regions of the world. Increasing reports of incidence, the discovery of antibiotic resistance strains, and concern about a potential use of the causative bacteria Yersinia pestis as an agent of biological warfare have highlighted the need for a safe, efficacious, and rapidly producible vaccine. The use of F1 and V antigens and the derived protein fusion F1-V has shown great potential as ... |
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| Electron Transport in Si Nanowires |
2006 |
5 pages |
| Authors:
E. Ramayya; D. Vasileska; S. M. Goodnick; I. Knezevic; ARIZONA STATE UNIV TEMPE
|
| We investigate electron transport in silicon nanowires taking into account acoustic, non-polar optical phonons and surface/interface roughness scattering. We find that at very high transverse fields the reduced density of final states to which the carriers can scatter into gives rise to a reduced influence of interface-roughness scattering, which is promising result from a fabrication point of view. |
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| Outsourcing Direct Materials Procurement in an Outsourced Manufacturing Arrangement |
DEC 2005 |
|
| Authors:
Barry L. Brewer; ARIZONA STATE UNIV TEMPE
|
 | In the current business environment, outsourcing is a common tool firms use to lower costs, attain access to technology, and to focus on core competencies. Procurement outsourcing is beginning to increase for nonstrategic or indirect purchases. However, outsourcing the procurement of direct materials occurs very infrequently. One exception to limited outsourcing of direct materials is the context of contract manufacturing. When outsourcing the manufacturing of a product or subassembly, original ... |
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| The Reintegration of Military Families Following Long Term Separation |
MAY 2005 |
133 pages |
| Authors:
Sharon J. Gober; ARIZONA STATE UNIV TEMPE
|
| The requirements of an effective and modern military force frequently result in military personnel being separated from their families for extended periods of time. Today's specialized work force and dual income family structures also demand family separations. Such separations change family dynamics and functions. Although stressed, most families eventually adjust, only to face even more challenges once the family reunites. Experiencing such new stressors can create negative effects for the ... |
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| A Network-Based Mathematical Programming Approach to Optimal Rostering of Continuous Heterogeneous Workforces |
MAY 2005 |
34 pages |
| Authors:
Shane A. Knighton; ARIZONA STATE UNIV TEMPE
|
| We present a linear programming (LP) approach to a generalized personnel tour scheduling integer programming (IP) problem based upon a minimum cost network-flow formulation with specialized side constraints. The formulation simultaneously incorporates many realistic constraint types and optimally solves the IP tour scheduling problem for industries with continuous (24 hour) operations and a heterogeneous workforce with varying availabilities, shift preferences, restrictions on working consecutive shifts, differing skill-sets, and minimum and ... |
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| Effects of Roughness and Thermal Inhomogeneities on Urban Flows |
27 OCT 2004 |
39 pages |
| Authors:
H. J. S. Fernando; D. L. Boyer; ARIZONA STATE UNIV TEMPE
|
| The Environmental Fluid Dynamics group at Arizona State University has been involved in research related to the studies of urban airsheds from the standpoint of multi-scale flow transport and analysis from regional to personal scales. The project described herein was supported by the Army Research Office in support of those efforts, especially to study the effects of topographic and thermal inhomogeneities on urban-scale flows. The emphasis was on the dispersion ... |
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| Military Leadership Evaluations: Effects of Sex, Leadership Style and Gender-Role Attitudes |
AUG 2004 |
115 pages |
| Authors:
Joseph D. Looney; ARIZONA STATE UNIV TEMPE
|
| Despite a recent increase in women holding leadership or managerial positions, women are still underrepresented in the highest levels of the military and business. On potential reason for this disparity might concern factors in leadership evaluation. In this study, the relationships among officer sex, leader sex, officer gender-role attitudes leadership style and military leadership evaluations were examined with data collected from 108 male and 58 female United States Air Force ... |
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| Impact of a Self-Management Education on Health Outcomes and Quality of Life in Child Asthma |
MAY 2004 |
97 pages |
| Authors:
Gerald W. Hall Jr.; ARIZONA STATE UNIV TEMPE
|
| According to the National Center for Health Statistics (2001) in 1998, 3.8 million children aged 0-17 years had an asthmatic episode. Nationally the asthma population is 6.3%. Arizona has exceeded the national asthma rates for 1991-1998 with an incidence of approximately 7% of the population. Asthmatic children require self-management instruction about asthma, medications, symptoms, and proper self-management. Poor self-management results from a lack of competence over asthma related self-management skills. ... |
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| Job Characteristics in the United States Air Force and Mental Health Service Utilization |
APR 2004 |
144 pages |
| Authors:
Victor A. Baumgarten; ARIZONA STATE UNIV TEMPE
|
| Data from the 2000 Air Force Community Needs Assessment were used to assess the significance and strength of the effects of job characteristics and social supports on mental health service utilization. In this study, mental health services included anger management, mental health, stress management and substance abuse services. Job stressors were hypothesized to increase service utilization. Social support was hypothesized to decrease service utilization and buffer the effects of job ... |
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| QOS and Control-Theoretic Techniques for Intrusion Tolerance |
APR 2004 |
80 pages |
| Authors:
Nong Ye; ARIZONA STATE UNIV TEMPE
|
| As we increasingly rely on information systems to support a multitude of critical operations, it becomes more and more important that these systems are able to deliver Quality of Service (QoS), even in the face of intrusions. This report examines two host-based resources, a router and a web server, and presents simulated models of modifications that can be made to these resources to make them QoS-capable. Two different QoS models ... |
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| Space Vector Methods for AC Drives to Achieve High Efficiency and Superior Waveform Quality |
31 MAR 2004 |
73 pages |
| Authors:
Raja Ayyanar; D. Zhao; H. Krishnamurthy; G. Narayanan; ARIZONA STATE UNIV TEMPE
|
| Space vector approach to pulse width modulation offers several advantages over the traditional triangle comparison methods, which are not fully exploited by conventional space vector PWM (SVPWM). New sequences, which divide the active vector duration, offer additional degrees of freedom that are not possible in triangle comparison approach. The objectives of this research are to identify% all such new sequences and develop new PWM techniques that reduce distortion and switching ... |
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| The Monitoring, Detection, Isolation and Assessment of Information Warfare Attacks Through Multi-Level, Multi-Scale System Modeling and Model Based Technology |
JAN 2004 |
150 pages |
| Authors:
Nong Ye; ARIZONA STATE UNIV TEMPE
|
| With the goal of protecting computer and networked systems from various attacks, the following intrusion detection techniques were developed and tested using the 1998 and 2000 MIT Lincoln Lab Evaluation Data: Exponentially Weighted Moving Average techniques for autocorrelated and uncorrelated data to detect anomalous changes in the audit event intensity; a learning and inference algorithm based on a first-order Markov chain model of a normal profile for anomaly detection; two ... |
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| Theoretical and Experimental Studies of Chaotic Dynamics With Defense Applications |
21 AUG 2003 |
29 pages |
| Authors:
Ying-Cheng Lai; ARIZONA STATE UNIV TEMPE
|
| This was an AFOSR Presidential Early Career Award for Scientists and Engineers (PECASE) in 1997. The research objectives were: (1) Chaotic scattering and applications to optical micro-lasing cavities; (2) Inducing chaos in electronic circuits; (3) Signal enhancement using stochastic resonance for anti- jamming; (4) Dynamics of semiconductor lasers and communicating with chaos. These were directly suggested by Air Force scientists or motivated by applications in Air Force missions. All objective ... |
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| Military Geography: The Interaction of Desert Geomorphology and Military Operations |
MAY 2003 |
313 pages |
| Authors:
Daniel A. Gilewitch; ARIZONA STATE UNIV TEMPE
|
| This research investigates the interaction of desert geomorphology and military operations. Battles throughout history were fought in desert regions and the future is certain to hold additional conflicts, particularly in the Middle East where Operation Iraqi Freedom currently rages at the time of this writing. Regardless of the frequency of desert warfare, this environment is not always well understood. Reliance on visual appearance and generalized maps of desert regions may ... |
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| Improving Target Orientation Discrimination Performance in Air-to-Air Flight Simulation |
MAY 2003 |
78 pages |
| Authors:
Gary Serfoss; ARIZONA STATE UNIV TEMPE
|
| When performing air-to-air combat within visual range of the target aircraft, pilots are in an extremely high workload environment where they are pushing their own limits, as well as that of their aircraft. Nearly all attention is focused visually on trying to acquire, track and assess the adversary's orientation and range. If a pilot detects the enemy just a second or two later than the enemy detects them, or misjudges ... |
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| High-Field Effects and Fast Pulse Responses in Bio-Systems |
2003 |
4 pages |
| Authors:
Raji Sundararajan; ARIZONA STATE UNIV TEMPE
|
| The organization of this event was "sparked" by the success of the Workshop on "Dielectric Properties and Electrical Breakdown of Biological Membranes", organized by Karl Schoenbach and which had taken place at the 2002 CEIDP. As indicated by the title of the 2003 Workshop, the presentations were chosen to highlight work on fast pulses in biological cells and tissues. Due to the availability of a number of manuscripts from contributors, ... |
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| Knowledge Acquisition in Distributed Mission Training |
DEC 2002 |
13 pages |
| Authors:
Roger Schvaneveldt; Richard Tucker; Anna R. Castillo; Winston Bennett Jr; ARIZONA STATE UNIV TEMPE
|
| The Air Force Research Laboratory (AFRL) in Mesa, AZ, has an ongoing program of research on training in a 4-ship F-16 Distributed Mission Training (DMT) system. A team of four pilots comes to the laboratory for a week-long training exercise and fly together as a 4-ship team on several missions designed to provide exposure to a range of combat scenarios. Missions involve briefing and debriefing sessions in addition to simulator ... |
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| Best Practices for Highway Project Cost Estimating |
DEC 2002 |
82 pages |
| Authors:
Jonathon E. Byrnes; ARIZONA STATE UNIV TEMPE
|
| This thesis examines the estimating practices currently in use by state Departments of Transportation (DOTs). It presents a review of DOT estimating practices and discusses actions that help agencies produce estimates that are in line with the current challenges of large reconstruction projects in urban environments. The research involved all aspects of estimating from the conceptual estimate, to the final engineer's estimate (which are used for bid analysis). Additionally, issues ... |
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| War and Political Participation the Impact of the Vietnam Conflict and Gulf War in America |
DEC 2002 |
53 pages |
| Authors:
Daniel Marine; ARIZONA STATE UNIV TEMPE
|
| The question of citizen participation in American politics continues to inspire social scientists seeking to understand the impact of citizen neglect on democratic legitimacy. By exploring the impact of the Vietnam Conflict and the Gulf War on political participation in the United States, this research provides evidence that American citizens participate at higher rates during times of military conflict than during times of peace. The theoretical frameworks of rational choice ... |
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| Three Corner Sat Constellation |
DEC 2002 |
12 pages |
| Authors:
Helen Reed; ARIZONA STATE UNIV TEMPE
|
| Three Corner Sat (3CS) is a part of the University Nanosatellite Program sponsored by AFOSR, DARPA and NASA GSFC. A joint collaboration among Arizona State University (ASU), the University of Colorado at Boulder (CU), and New Mexico State University (NMSU), the project demonstrates the feasibility of using nanosatellite technology for useful scientific endeavors while minimizing manufacturing and launch costs. 3CS includes a stack of three nearly identical satellites that will ... |
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| Feasibility and Implications of a Rock Coating Catena: Analysis of a Desert Hillslope |
AUG 2002 |
209 pages |
| Authors:
Ronald E. Palmer; ARIZONA STATE UNIV TEMPE
|
| This research analyzes rock coatings on a basaltic hill in the western Mojave Desert using a combination of aerial imagery, a new method of digital in-field' ground-based image processing, and statistical analyses. In addition, this research resulted in the development of a new rock coating index (RCI) to generalize changes in rock coatings along a slope, applied here to 2, 760 individual clasts. RCI values reveal variations of different types ... |
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| Assess the Stress: Identifying Psychosocial Risk to Optimize Perinatal Outcomes in Military Gravids |
MAY 2002 |
67 pages |
| Authors:
Debra L. Arabia; ARIZONA STATE UNIV TEMPE
|
| Pregnancy is a dynamic event that results in physiological, psychological, sociological, and developmental changes (Logsdon, 2000; Norbeck & Tilden, 1983). This can lead to stress, which directly and indirectly affects maternal and fetal well being. Complications occur in approximately 50% of all pregnancies of healthy adult women in North America (DaCosta, Brender, & Larouche, 1998). Despite medical advances, the incidence of pregnancy complications has changed little since the 1960's (DaCosta, ... |
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| A Process Engineering Approach to the Development and Integration of Intrusion Detection Techniques |
01 MAR 2002 |
285 pages |
| Authors:
Nong Ye; ARIZONA STATE UNIV TEMPE
|
| The objectives of this project are to: (1) establish an integration infrastructure for intrusion detection, based on a process engineering approach; (2) investigate system-level intrusion detection techniques for the fusion and correlation of local information about intrusions, based on the integration infrastructure for intrusion detection; and (3) develop an integrated intrusion detection system as a concept technological demonstration of the integration infrastructure and system-level intrusion detection techniques. In this final ... |
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| Fundamental Theoretical and Numerical Issues of Turbulence in the Middle Atmosphere |
21 JAN 2002 |
49 pages |
| Authors:
Basil Nicolaenko; Alex Mahalov; ARIZONA STATE UNIV TEMPE
|
| This project falls within the realm of the USAF Airborne Laser (ABL) Program. One of the challenges of the ABL program is the development of laser- beam propagation codes. Such codes must account for beam propagation through an extended turbulent medium of the bulk of the troposphere and stratosphere. From the operational perspective, accurate modeling of the refractive index structure function for long nearly horizontal path under high scintillation conditions ... |
|
| Advanced Research Workshop on Quantum Transport in Semiconductors |
08 JAN 2002 |
266 pages |
| Authors:
David K. Ferry; ARIZONA STATE UNIV TEMPE
|
| A workshop was held on the topic of quantum transport in semiconductor devices. This workshop brought together 17 lecturers and 35 other attendees for this purpose. |
|
| Information Dynamics and Emergent Behavior of Heterogeneous-Agent Systems |
DEC 2001 |
45 pages |
| Authors:
Nong Ya; ARIZONA STATE UNIV TEMPE
|
| This project presents an effort to establish theories and techniques of modeling, analyzing and controlling information dynamics and emergent behavior of heterogeneous-agent systems and demonstrate the application of these theories and techniques to heterogeneous-agent systems making up information supply networks. A heterogeneous-agent system is a Complex Adaptive System (CAS) involving a large collection of semi-autonomous agents. According to Complexity Theory for CAS, the aggregate system behavior of heterogeneous agents and ... |
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| Nerve Growth Factor Dependent Changes in Electrophysiology Measured in a Neurotrophic Electrode |
25 OCT 2001 |
|
| Authors:
S. H. Tillery; P. J. Rousche; K. Hausmann; D. Hall; M. Beaumont; ARIZONA STATE UNIV TEMPE
|
| We describe here neurotrophic electrode designed to improve long-term reliability and signal-to-noise in brain-device interface. Our electrode consists of fine microwire inside polyimide tube. The polyimide tube is filled with nerve growth factor (NCF) incorporated into fibrin matrix. Our goal is to have a neurite grow into the tube. The close apposition between neurite and the recording wire should enhance signal-to-noise. The physical connection between device and tissue should improve ... |
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| DURIP 00 Thermal Analysis and Potentiostatic Instuments for Relaxor Ferroelectric Research |
30 AUG 2001 |
7 pages |
| Authors:
William Petuskey; ARIZONA STATE UNIV TEMPE
|
| The funds provided by this grant were used to purchase a thermoanalytical balance, with additional thermal analytical capabilities, and a general purpose potentiostat/galvanostat in support of ongoing research on the thermochemistry of ferroelectric relaxors of ceramic system of PbO-MgO-Nb2O5- TiO2. This research is being carried out at Arizona State University, funded by a primary grant awarded by the AFOSR (ISSA-99-0013, entitled 'Grain Growth in Relaxor Ferroelectrics'). The equipment includes a ... |
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| A Process Engineering Approach to the Development and Integration of Intrusion Detection Techniques |
MAR 2001 |
239 pages |
| Authors:
Nong Ye; ARIZONA STATE UNIV TEMPE
|
| The objectives of this project are to: (1) establish an integration infrastructure for intrusion detection, based on a process engineering approach; (2) investigate system-level intrusion detection techniques for the fusion and correlation of local information about intrusions, based on the integration infrastructure for intrusion detection; and (3) develop an integrated intrusion detection system as a concept technological demonstration of the integration infrastructure and system-level intrusion detection techniques. In this final ... |
|
| Modeling and Analysis of Composites Using Smart Materials and Optimization Techniques |
06 FEB 2001 |
8 pages |
| Authors:
A. Chattopadhyay; ARIZONA STATE UNIV TEMPE
|
| The vibratory load reduction at rotor hub using self-sensing piezoelectric material and closed loop control is investigated, A composite box beam theory is developed to model the primary load carrying structure in the rotor blade. In this theory, a higher order displacement field is used to model the individual walls of the composite box beam with surface bonded piezoelectric actuators. Based on these techniques, an integrated rotor vibratory load analysis ... |
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| The use of Novel Precursor Chemistry for Synthesis of Superhard Materials |
26 JAN 2001 |
8 pages |
| Authors:
John Kouvetakis; ARIZONA STATE UNIV TEMPE
|
| The objective of this short term program was to initiate synthesis of a new class of light element materials with novel compositions that are isoelectronic to carbon (i.e. the number of valence electrons per atom is four) or related to Si3N4. The ultimate goal is to investigate their use in high pressure or laser ablation synthesis of extremely dense, superhard materials of the same composition that have structures and properties ... |
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Reports by Corporate Author
