Index Catalog // ScholarsArchive@OSU

Counterflow ignition of n-butanol at atmospheric and elevated pressures

Creator:: Brady, Kyle B., Hui, Xin, Sung, Chih-Jen, and Niemeyer, Kyle E.
Abstract:: Critical to the development of predictive combustion models is a robust understanding of the coupled effects of chemical kinetics and convective-diffusive transport at both atmospheric and elevated pressures. The present study describes a new variable-pressure non-premixed counterflow ignition experiment designed to address the need for well-characterized reference data to validate...
Resource Type:: Article

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Creator:: Long, Brady and Morrell, Jeffrey J.
Abstract:: Preservative treatments are required whenever glued laminated beams are exposed outdoors. Treatments can be either water-based systems applied to individual laminations prior to layup or organic solvent–borne systems applied after the beams are fabricated. Water-based systems are not recommended for posttreatment because of concerns over checking and the potential for...
Resource Type:: Article
Full Text:: Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams Brady Long Jeffrey J. Morrell

Transmission Eigenvalues and Thermoacoustic Tomography

Creator:: Finch, David and Hickmann, Kyle S.
Abstract:: The spectrum of the interior transmission problem is related to the unique determination of the acoustic properties of a body in thermoacoustic imaging. Under a non-trapping hypothesis, we show that sparsity of the interior transmission spectrum implies a range separation condition for the thermoacoustic operator. In odd dimensions greater than...
Resource Type:: Article
Full Text:: Transmission Eigenvalues and Thermoacoustic Tomography David Finch ∗ Kyle S. Hickmann † June 23, 2013

Dielectric and ferroelectric properties of (Bi₀.₅Na₀.₅)TiO₃ – (Bi₀.₅K₀.₅)TiO₃ – BaTiO₃ thin films deposited via chemical solution deposition

Creator:: Jeon, Yu Hong, Patterson, Eric A., Cann, David P., and Gibbons, Brady J.
Abstract:: Polycrystalline ferroelectric lead-free 85 mol% (Bi₀.₅Na₀.₅)TiO₃–10 mol% (Bi₀.₅K₀.₅)TiO₃–5 mol% BaTiO₃ (85BNT–10BKT–5BT) thin films were fabricated via chemical solution deposition on platinized silicon substrates. The permittivity and dielectric loss at 1 kHz were 610 and ∼3.5%, respectively. The ferroelectric properties at room temperature and as a function of the temperature up...
Resource Type:: Article
Full Text:: Jeon, Eric A. Patterson, David P. Cann, and Brady J. Gibbons 3

Control of Crystallographic Texture and Surface Morphology of Pt/TiO₂ Templates for Enhanced PZT Thin Film Texture

Creator:: Fox, Austin J., Drawl, Bill, Fox, Glen R., Gibbons, Brady J., and Trolier-McKinstry, Susan
Abstract:: Optimized processing conditions for Pt/TiO₂/SiO₂/Si templating electrodes were investigated. These electrodes are used to obtain [111] textured thin film lead zirconate titanate (Pb[ZrₓTi₁₋ₓ]O₃ 0≤x≤1) (PZT). Titanium deposited by dc magnetron sputtering yields [0001] texture on a thermally oxidized Si wafer. It was found that by optimizing deposition time, pressure, power,...
Resource Type:: Article
Full Text:: Surface Morphology of Pt/TiO₂ Templates for Enhanced PZT Thin Film Texture Fox, A. J., Drawl, B., Fox

Accelerating moderately stiff chemical kinetics in reactive-flow simulations using GPUs

Creator:: Niemeyer, Kyle E. and Sung, Chih-Jen
Abstract:: The chemical kinetics ODEs arising from operator-split reactive-flow simulations were solved on GPUs using explicit integration algorithms. Nonstiff chemical kinetics of a hydrogen oxidation mechanism (9 species and 38 irreversible reactions) were computed using the explicit fifth-order Runge–Kutta–Cash–Karp method, and the GPU-accelerated version performed faster than single- and six-core CPU...
Resource Type:: Article
Full Text:: simulations using GPUs Kyle E. Niemeyera,b,1,∗, Chih-Jen Sungb aDepartment of Mechanical and Aerospace

Recent progress and challenges in exploiting graphics processors in computational fluid dynamics

Creator:: Niemeyer, Kyle E. and Sung, Chih-Jen
Abstract:: The progress made in accelerating simulations of fluid flow using GPUs, and the challenges that remain, are surveyed. The review first provides an introduction to GPU computing and programming, and discusses various considerations for improved performance. Case studies comparing the performance of CPU- and GPUbased solvers for the Laplace and...
Resource Type:: Article
Full Text:: fluid dynamics Kyle E. Niemeyer · Chih-Jen Sung Received: date / Accepted: date Abstract The progress

Reduced Chemistry for a Gasoline Surrogate Valid at Engine-Relevant Conditions

Creator:: Niemeyer, Kyle E. and Sung, Chih-Jen
Abstract:: A detailed mechanism for the four-component RD387 gasoline surrogate developed by Lawrence Livermore National Laboratory has shown good agreement with experiments in engine-relevant conditions. However, with 1388 species and 5933 reversible reactions, this detailed mechanism is far too large to use in practical engine simulations. Therefore, reduction of the detailed...
Resource Type:: Article
Full Text:: Reduced chemistry for a gasoline surrogate valid at engine-relevant conditions Kyle E. Niemeyer∗,† and

Flaxseed supplementation decreases methanogenic gene abundance in the rumen of dairy cows

Creator:: Li, L., Schoenhals, K. E., Brady, P. A., Estill, C. T., Perumbakkam, S., and Craig, A. M.
Abstract:: The objective of this study was to investigate the effects of a flaxseed-supplemented diet on archaeal abundance and gene expression of methanogens in the rumen of dairy cows. In all, 11 non-lactating dairy cows were randomly divided into two groups: group A (five cows) and B (six cows). The two...
Resource Type:: Article
Full Text:: ) and B (six cows). The two diets fed were: (1) the control diet, a conventional dry cow ration; and (2

Liquefaction at Strong Motion Stations and in Urayasu City during the 2011 Tohoku-Oki Earthquake

Creator:: Cox, Brady R., Boulanger, Ross W., Tokimatsu, Kohji, Wood, Clinton M., Abe, Akio, Ashford, Scott, Donahue, Jennifer, Ishihara, Kenji, Kayen, Robert, Katsumata, Kota, Kishida, Tadahiro, Kokusho, Takaji, Mason, H. Benjamin, Moss, Robb, Stewart, Jonathan P., Tohyama, Kazushi, and Zekkos, Dimitrios
Abstract:: The 2011 M[subscript W] = 9.0 Tohoku-oki earthquake generated a large number of unique soil liquefaction case histories, including cases with strong ground motion recordings on liquefiable or potentially liquefiable soils. We have compiled a list of 22 strong motion stations (SMS) where surface evidence of liquefaction was observed and...
Resource Type:: Article
Full Text:: the 2011 Tohoku-Oki Earthquake Brady R. Cox,a) M.EERI, Ross W. Boulanger,b) M.EERI, Kohji Tokimatsu,c

ScholarsArchive@OSU

Counterflow ignition of n-butanol at atmospheric and elevated pressures

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Transmission Eigenvalues and Thermoacoustic Tomography

Dielectric and ferroelectric properties of (Bi₀.₅Na₀.₅)TiO₃ – (Bi₀.₅K₀.₅)TiO₃ – BaTiO₃ thin films deposited via chemical solution deposition

Control of Crystallographic Texture and Surface Morphology of Pt/TiO₂ Templates for Enhanced PZT Thin Film Texture

Accelerating moderately stiff chemical kinetics in reactive-flow simulations using GPUs

Recent progress and challenges in exploiting graphics processors in computational fluid dynamics

Reduced Chemistry for a Gasoline Surrogate Valid at Engine-Relevant Conditions

Flaxseed supplementation decreases methanogenic gene abundance in the rumen of dairy cows

Liquefaction at Strong Motion Stations and in Urayasu City during the 2011 Tohoku-Oki Earthquake

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