Browsing by Title
Now showing items 3341-3360 of 3507
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U.S. Wildlife Strikes by Engine Type
(2022-04)This study analyzed the relationship between wildlife strikes and engine type using data from the FAA (2022) Wildlife Strike Database from 2010-2019 in the United States. Turbofan aircraft had the most wildlife ... -
Ubiquitous map image access through wireless overlay networks
(2004)With the availability of various wireless link-layer technologies, such as Bluetooth, WLAN and GPRS, in one wireless device, ubiquitous communications can be realized through managing vertical handoff in the environment ... -
UE Based Performance Evaluation of 4G LTE Network
(2019-05)In the past ten years, we have witnessed an increase in demand for mobile services as we have come to depend more and more on mobile phones as an indispensable part of everyday life. And not merely for making phone calls ... -
Ulysses COSPIN observations of cosmic rays and solar energetic particles from the South Pole to the North Pole of the Sun during solar maximum
(2003-06-30)In 2000–2001 Ulysses passed from the south to the north polar regions of the Sun in the inner heliosphere, providing a snapshot of the latitudinal structure of cosmic ray modulation and solar energetic particle populations ... -
Unambiguous evaluation of the relative photolysis rates of nitro indolinyl protecting groups critical for brain network studies
(2015-03)Nitrated indolinyl photoprotecting groups are crucial tools extensively used in the study of neuronal signal transduction. Mononitrated photolabile protecting groups have been used effectively, however, recent advances ... -
Unconventional optical imaging using a high speed, neural network based smart sensor
(2006-05-02)The advancement of neural network methods and technologies is finding applications in many fields and disciplines of interest to the defense, intelligence, and homeland security communities. Rapidly reconfigurable sensors ... -
Uncovering the deeply embedded active galactic nucleus activity in the nuclear regions of the interacting galaxy Arp 299
(2013-11-26)We present mid-infrared (MIR) 8-13 μm spectroscopy of the nuclear regions of the interacting galaxy Arp 299 (IC 694+NGC 3690) obtained with CanariCam (CC) on the 10.4 m Gran Telescopio Canarias (GTC). The high angular ... -
Understanding Department of Defense Employee Perceptions of Performance Appraisals: Making a Connection Between Performance Appraisals and Motivation
(2018-12)The purpose of this study was to examine employee perceptions of performance appraisals in the Department of Defense (DoD) and to examine potential connections between the performance appraisal process, employee motivation ... -
Understanding Ecological Relationships to Improve Biofouling Management Practices in the Marine Environment
(2022-12)Biofouling, the growth of benthic invertebrates on anthropogenic surfaces, impacts many industries and is a major vector of non-native species worldwide. Understanding the ecological relationships between biofouling organisms ... -
Understanding the cool DA white DWARF pulsator, G29-38
(1998-03-01)The white dwarfs are promising laboratories for the study of cosmochronology and stellar evolution. Through observations of the pulsating white dwarfs, we can measure their internal structures and compositions, critical ... -
Understanding the effectiveness between modern technologies and traditional training methods of e-learning on an individual’s learning curve, content retention, and satisfaction
(2023-05)E-learning has become a widespread and valuable tool for skill development. After the COVID-19 pandemic, the necessity and adaptability of this method increased drastically. Hence, numerous studies focused on understanding the ... -
Understanding the Reaction Kinetics of Polyurethane Flexible Foam
(2022-07)Polyurethane flexible foam is used throughout daily life predominantly as cushions for chairs and mattresses. Currently new foams are made through extensive research and development via trial and error. There are many ... -
Understanding the Role of Chief Financial Officers in the Strategic Planning and Decision-Making Process of Defense Contractors in the Washington, D.C. Region
(2022-05)The strategic planning and decision-making process of a firm is what drives the future of a firm, but what are all the correct stakeholders involved in that process? Historically, the Chief Executive Officer of the firm ... -
Understanding the spatio-temporal evolution of surface heat flux in the tropics from observations and models
(2022-07)An important component of the earth’s surface energy budget is the surface heat flux that allows the exchange of mass and energy between the ocean and the atmosphere and thereby influences oceanic and atmospheric ... -
Unexpected Effects: The Dual Effects of Prevalent Work Characteristics on Goal Accomplishment and the Moderating Role of Proactivity
(2018-07)The present study addressed the issue of the inability of current job design models to account for some of the complexities associated with prominent job characteristics (e.g., autonomy, task variety, and interdependence) ... -
Unicode compress: does size really matter?
(2002-07-31)The Unicode standard provides several algorithms, techniques, and strategies for assigning, transmitting, and compressing Unicode characters. These techniques allow Unicode data to be represented in a concise format in ... -
Unified Model Combining the Boundary Conditions Encountered at the Input, the Carrier Optical Fiber and the Output in Spatially Multiplexed Optical Communication Channels
(2019-04)Spatial domain multiplexing allows for expansion of optical fiber data rates by utilizing the spatial dimensions within the fiber. One form of this multiplexing method utilizes oblique input angles to generate ring-like ... -
Unified Model of Lightning & Electrostatic Discharges Across the Solar System
(2022-12)As we increase the number of probes on other objects within our solar system, it becomes all the timelier to understand the physics of electrostatic discharges (ESDs). Since these probes will have sensitive instruments ...