Now showing items 1-10 of 265
Structural Resemblance Between Droop Controllers and Phase-Locked Loops
It is well known that droop control is fundamental to the operation of power systems and now the parallel operation of inverters, while phase-locked loops (PLLs) are widely adopted in modern electrical engineering. In this ...
Thermal conductivity of self-assembled nano-structured ZnO bulk ceramics
(American Institute of Physics, 2012-08-01)
In this study, we describe the changes in thermal conductivity behavior of ZnO-Al micro- and nano-two-phase self-assembled composites with varying grain sizes. The reduction in thermal conductivity values of micro-composites ...
Framework for Evaluating the Severity of Cybervulnerability of a Traffic Cabinet
(National Academy of Sciences, 2017)
The increasing connectivity in transportation infrastructure is driving a need for additional security in transportation systems. For security decisions in a budget-constrained environment, the possible effect of a cyberattack ...
Physical layer orthogonal frequency-division multiplexing acquisition and timing synchronization security
Orthogonal frequency-division multiplexing (OFDM) has become the manifest modulation choice for 4G standards. Timing acquisition and carrier frequency offset synchronization are prerequisite to OFDM demodulation and must ...
The Nursing Home Diversion Modernization Program
This is a compilation of various studies on topics such as the Nursing Home Diversion Modernization Program, mild cognitive impairment, the "No Wrong Door" system, and an evaluation of the New River Valley Agency on Aging.
A new method for achieving enhanced dielectric response over a wide temperature range
(Springer Nature, 2015-10-19)
We report a novel approach for achieving high dielectric response over a wide temperature range. In this approach, multilayer ceramic heterostructures with constituent compositions having strategically tuned Curie points ...
Proceedings: 11th Annual Conference on Higher Education Pedagogy/Symposium on Teaching Large Classes
(Virginia Tech, 2019)
Combined proceedings from the 11th annual Conference on Higher Education Pedagogy, held on January 30-February 1, 2019; and the Symposium on Teaching Large Classes, held on February 2, 2019.
IAWA Archivist’s Report, 2018
(Virginia Tech, 2018)
The IAWA was established in 1985 as a collaborative project between the College of Architecture and Urban Studies and the University Libraries at Virginia Tech. It is overseen by a board of advisors that includes architects, ...
Prediction of Young’s Modulus for Injection Molded Long Fiber Reinforced Thermoplastics
In this article, the elastic properties of long-fiber injection-molded thermoplastics (LFTs) are investigated by micro-mechanical approaches including the Halpin-Tsai (HT) model and the Mori-Tanaka model based on Eshelby’s ...
Materials for the Spine: Anatomy, Problems, and Solutions
Disc degeneration affects 12% to 35% of a given population, based on genetics, age, gender, and other environmental factors, and usually occurs in the lumbar spine due to heavier loads and more strenuous motions. Degeneration ...