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Ruston, LA, United States

Louisiana Tech University, colloquially referred to as Louisiana Tech or La. Tech, is a coeducational public research university in Ruston, Louisiana, United States. Louisiana Tech is designated as a Tier One national university by the 2015 U.S. News & World Report college rankings and is the only Tier One national university in the nine-member University of Louisiana System. As a designated space grant college, member of the Southeastern Universities Research Association, member of the Association of Public and Land-Grant Universities, and Carnegie Research University with high research activity , Louisiana Tech conducts research with ongoing projects funded by agencies such as NASA, the National Institutes of Health, the National Science Foundation, and the Department of Defense. Louisiana Tech is one of only 35 comprehensive research universities in the nation and the only university in Louisiana to be designated as a National Center of Academic Excellence in Information Assurance Education and Research by the National Security Agency and the United States Department of Homeland Security . The university is known for its engineering and science programs.Louisiana Tech opened as the Industrial Institute and College of Louisiana in 1894 during the Second Industrial Revolution. The original mission of the college was for the education of white students in the arts and science for the purpose of developing an industrial economy in post-Reconstruction Louisiana. Four years later, the state constitution changed the school's name to Louisiana Industrial Institute. In 1921, the college changed its name to Louisiana Polytechnic Institute to reflect its evolution from a trade school to a larger and more capable institute of technology. Under the leadership of Dr. F. Jay Taylor, the college continued to grow and change over time. Louisiana Polytechnic Institute became desegregated in the 1960s and officially changed its name to Louisiana Tech University in 1970 as the school developed into a research university.Louisiana Tech enrolled 11,271 students in five academic colleges during the Fall 2014 academic quarter including 1,726 students in the graduate school. In addition to the main campus in Ruston, Louisiana Tech holds classes at the Louisiana Tech University Shreveport Center, Cyber Innovation Center in Bossier City, Barksdale Air Force Base, and on the CenturyLink campus in Monroe.Louisiana Tech fields 16 varsity NCAA Division I sports teams and is a member of Conference USA of the Football Bowl Subdivision. The university is known for its Bulldogs football team and Lady Techsters women's basketball program which won three national championship titles and made 13 Final Four appearances in the program's history. Wikipedia.

Wick C.D.,Louisiana Tech University
Journal of Physical Chemistry C | Year: 2012

Molecular dynamics simulations were carried out to understand the propensity of the hydronium ion for the air-water interface with a polarizable multistate empirical valence bond (MS-EVB) model. Reasonable agreement with experiment for radial distribution functions and very good agreement for hydronium diffusion were found for the model. The polarizable MS-EVB model had no free energy minimum at the air-water interface. However, when polarizability on the hydronium ion alone was removed, a free energy of around -1.5 kcal/mol was calculated at the air-water interface. This discrepancy was found to be due to the behavior of water molecules in the first solvation shell of a hydronium ion. These water molecules contained a moderate amount of hydronium character, resulting in the delocalization of the hydronium ion. For the system with polarizable hydronium ions, this delocalization was the same at the interface as in the bulk, but for the system without polarizable hydronium ions, the delocalization increased as the hydronium approached the air-water interface. This delocalization results in a stabilization of the hydronium charge and moves it more toward the bulk, increasing its propensity for the air-water interface when hydronium ion polarizability is removed. © 2012 American Chemical Society.

Weiss L.,Louisiana Tech University
International Journal of Thermal Sciences | Year: 2011

The use of phase change for power production on the small scale is reviewed in this paper. Important contributions from many authors are considered. There have been a wide variety of approaches and devices created using MEMS techniques dependent on working fluid phase change to achieve power output. These include traditional cycles like the Rankine Cycle, downsized for MEMS application. A large selection of phase change micro-actuators has also been studied using MEMS-based approaches. These actuators have been designed for operation of valves or other systems requiring mechanical input. Other approaches have included novel thermodynamic cycles that are exclusive to microfabrication and MEMS-based devices. Each of these phase change devices shares several commonalities related to the control of heat transfer and efficiency of operation. This has resulted in the design and implementation of innovative features, multiple working fluids, and careful material selection. © 2011 Elsevier Masson SAS. All rights reserved.

Fakhrullin R.F.,Kazan Federal University | Lvov Y.M.,Louisiana Tech University
ACS Nano | Year: 2012

Figure Persented: Layer-by-layer encapsulation of living biological cells and other microorganisms via sequential adsorption of oppositely charged functional nanoscale components is a promising instrument for engineering cells with enhanced properties and artificial microorganisms. Such nanoarchitectural shells assembled in mild aqueous conditions provide cells with additional abilities, widening their functionality and applications in artificial spore formation, whole-cell biosensors, and fabrication of three-dimensional multicellular clusters. © 2012 American Chemical Society.

Shepard S.R.,Louisiana Tech University
Physical Review A - Atomic, Molecular, and Optical Physics | Year: 2014

The complementarity between time and energy, as well as between an angle and a component of angular momentum, is described at three different layers of understanding. The phenomena of super-resolution are readily apparent in the quantum phase representation which also reveals that entanglement is not required. We modify Schwinger's harmonic oscillator model of angular momentum to include the case of photons. Therein, the quantum angle measurement is shown to be equivalent to the measurement of the relative phase between the two oscillators. Two reasonable ways of dealing with degeneracy are shown to correspond to a conditional measurement which takes a snapshot in absolute time (corresponding to adding probability amplitudes) and a marginal measurement which takes an average in absolute time (corresponding to adding probabilities). The sense in which distinguishability is a "matter of how long we look" is discussed and the meaning of the general theory is illustrated by taking the two oscillators to be circularly polarized photons. It is shown that an odd number of x-polarized photons will never have an angle in correspondence with the y axis, but an even number of x-polarized photons always can! The behavior of an x-polarized coherent state is examined and the snapshot angular distributions are seen to evolve into two counter-rotating peaks resulting in considerable correspondence with the y axis at the time for which a classical linear polarization vector would shrink to zero length. We also demonstrate how the probability distribution of absolute time (herein a measurable quantity, rather than just a parameter) has an influence on how these snapshot angular distributions evolve into a quantum version of the polarization ellipse. © 2014 American Physical Society.

Agency: NSF | Branch: Standard Grant | Program: | Phase: Materials Eng. & Processing | Award Amount: 343.41K | Year: 2016

Diamond thin films play an important role in many established and emerging areas of technology including manufacturing tools, protective coatings, and high power electronics due to their increased resistance to wear, chemical stability, low coefficient of friction, low coefficient of thermal expansion, wide optical transparency, biocompatibility, and tunable conductivity. For similar reasons, diamond thin films have also started attracting attention from researchers for use in microelectromechanical systems (MEMS) such as sensors and actuators. However, besides performance the scalability, sustainability, and cost of these films are also factors that influence their viability for widespread use. This award supports fundamental research to provide needed knowledge for the development of a novel diamond film growth process that: (1) can be performed virtually on any substrate, including metals, oxides, and plastics, (2) is economical due to low cost and ready availability of the raw material, (3) poses lower health hazards and is environmentally safe, and (4) can be integrated with standard semiconductor technology. Such low cost, scalable diamond films with tailorable physical properties will enable broad impact in energy, manufacturing, healthcare, sensors, electronics, and other important applications, thus providing a positive impact on the U.S. economy and society. In addition, this multi-disciplinary approach involving research in chemistry, materials science, manufacturing, and engineering will provide a significant impact on broadening participation of minorities in research, and incorporating nanomaterial manufacturing concepts in K-12 curriculum.

The concept of directed covalent assembly of nanodiamonds using versatile, room-temperature chemistry to form conformal and compact films will pave the way to a novel class of sustainable coatings for MEMS. The full application potential of covalently assembled nanodiamond films can be achieved by overcoming the scientific barrier of tuning its physical properties (mechanical, thermal, and optical) which are directly linked to the level and distribution of porosity in the film micro-/nanostructure. This research seeks to fill the knowledge gap on the mechanism(s) of porosity reduction through precise control over nanodiamond aggregate size during film fabrication as well as post-fabrication anneal. The research team will characterize porosity distribution and the associated physical properties using state-of-the-art materials characterization methods. Further, microfabricated devices will be made with the nanodiamond films as a vehicle to demonstrate its integration into MEMS, to facilitate quantification of physical properties such in-plane and cross-plane thermal conductivity, and to correlate these findings to the nanodiamond aggregate sizes used during the direct covalent assembly process.

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