Engineering Commons^™

Get Away Special: Microgravity Research Team, Getaway Special Team

Education and Outreach

No abstract provided.

Report For 2011 Urco Funded Experiment: Development Of Optimal Bubble-Seeding Microheaters To Study Nucleate Boiling Heat Transfer In Microgravity, Ryan Martineau

Reports and Proposals

No abstract provided.

Meat And Bone Meal Pyrolysis Study In A Laboratory-Scale Bubbling Fluidized Bed Reactor, Federico M. Berruti, Lorenzo Ferrante, Cedric Briens, Franco Berruti

Bioenergy III: Present and New Perspectives on Biorefineries

No abstract provided.

Comparison Of Dynamic Compression Behavior Of Single Crystal Sapphire To Polycrystalline Alumina, G. J. Kleiser, L.C. Chhabildas, W.D. Reinhart

United States Department of Energy: Publications

Due to the considerable interest in the shock loading behavior of aluminum oxide whether it is in the polycrystalline phase or in the single crystal phase well-controlled experiments were conducted to probe differences in shock loading behavior between these two materials. Previous studies concluded that the behavior was similar but careful examination of well-controlled experiments has revealed the two materials are different.Although the experimental results appear to have the same behavior in the shock velocity vs. particle velocity plane, they are considerably different in the stressevolume compression plane and evidence is provided that indicates the single crystal remains crystalline up …

Persistence Of Uranium Groundwater Plumes: Contrasting Mechanisms At Two Contaminated Doe Sites, John M. Zachara, James A. Davis, Philip E. Long, Kenneth H. Williams, Mark Freshley, James P. Mckinley

United States Department of Energy: Publications

We examine subsurface uranium (U) plumes at two U.S. Department of Energy sites located near large river systems. Following excavation of contaminated materials, both sites were projected to naturally flush remnant uranium contamination to levels below regulatory limits (e.g., 30 μg/L), within 10 years at the Hanford 300 Area (Columbia River) and 12 years at the Rifle site (Colorado River). The observed rate of attenuation was much lower than expected at both sites. Current understanding suggests that the two sites have common, but also differing mechanisms controlling plume persistence. At Hanford, the persistent source is adsorbed U(VI) in the deep …

Monarch: A High-Assurance Java-To-Java (J2j) Source-Code Migrator, Victor L. Winter, Jonathan Guerrero, Carl Reinke, James T. Perry

United States Department of Energy: Publications

JVM-based processors used in embedded systems are often scaled back versions of the standard JVM which do not support the full set of Java byte codes and native methods assumed by a JVM. As a result, code bases such as Java libraries must be migrated in order make them suitable for execution on the embedded JVM-based processor. This paper describes Monarch, a high-assurance Java-to-java (J2j) source code migrator that we are developing to assist such code migrations.

The Utility Of Shewanella Japonica For Microbial Fuel Cells, Justin C. Biffinger, Lisa A. Fitzgerald, Ricky Ray, Brenda J. Little, Stephen E. Lizewski, Emily R. Petersen, Bradley R. Ringeisen, Wesley C. Sanders, Paul E. Sheehan, Jeremy J. Pietron, Jeffrey W. Baldwin, Lloyd J. Nadeau, Glenn R. Johnson, Meghann Ribbens, Steven E. Finkel, Kenneth H. Nealson

United States Navy: Publications

Shewanella-containing microbial fuel cells (MFCs) typically use the fresh water wild-type strain Shewanella oneidensis MR-1 due to its metabolic diversity and facultative oxidant tolerance. However, S. oneidensis MR-1 is not capable of metabolizing polysaccharides for extracellular electron transfer. The applicability of Shewanella japonica (an agar-lytic Shewanella strain) for power applications was analyzed using a diverse array of carbon sources for current generation from MFCs, cellular physiological responses at an electrode surface, biofilm formation, and the presence of soluble extracellular mediators for electron transfer to carbon electrodes. Critically, air-exposed S. japonica utilizes biosynthesized extracellular mediators for electron transfer to carbon …

Investigation Of Electrical Transport In Hydrogenated Multiwalled Carbon Nanotubes, Adam L. Friedman, Hyunkyung Chun, Don Heiman, Yung Joon Jung, Latika Menon

United States Navy: Publications

Highly disordered multiwalled carbon nanotubes of large outer diameter (~60 nm) fabricated by means of chemical vapor deposition process inside porous alumina templates exhibit ferromagnetism when annealed in a H₂/Ar atmosphere. In the presence of an applied magnetic field, there is a transition from positive to negative magnetoresistance. The transition may be explained in terms of the Bright model for ordered and disordered carbon structures. Additionally, temperature dependent electrical transport experiments exhibit a zero-bias anomaly at low temperature.

Derivation Radical Subspace Arrangements, Will Taves, Max Wakefield

United States Navy: Publications

In this note we study modules of derivations on collections of linear subspaces in a finite dimensional vector space. The central aim is to generalize the notion of freeness from hyperplane arrangements to subspace arrangements. We call this generalization ‘derivation radical’. We classify all coordinate subspace arrangements that are derivation radical and show that certain subspace arrangements of the Braid arrangement are derivation radical. We conclude by proving that under an algebraic condition the subspace arrangement consisting of all codimension c intersections, where c is fixed, of a free hyperplane arrangement are derivation radical.

Sex Steroid And Thyroid Hormone Receptor Expressions In The Thyroid Of The American Alligator (Alligator Mississippiensis) During Different Life Stages, Dieldrich S. Bermudez, Jeremy P. Skotko, Yasuhiko Ohta, Ashley S.P. Boggs, Taisen Iguchi, Louis J. Guillette Jr.

United States Environmental Protection Agency: Publications

The expression of estrogen receptors, ESR1 (ERα) and ESR2 (ERβ), and androgen receptors (AR) in the thyroid gland has been reported in few vertebrate species other than a few mammals. This study reports the presence of sex steroid hormone receptors and thyroid receptors (ERα, ERβ, AR, TRα, and TRβ) in the thyroid gland of the American alligator at several life stages. It provides a semiquantification and distribution of ERα in the thyroid follicle cells using an immunohistochemical approach as well as reports quantitative differences in mRNA expression of ERα, ERβ, TRα, TRβ, and AR in the same tissue using quantitative …

Time-Lapse Three-Dimensional Inversion Of Complex Conductivity Data Using An Active Time Constrained (Atc) Approach, M. Karaoulis, A. Revil, D. D. Werkema, B. J. Minsley, W. F. Woodruff, A. Kemna

United States Environmental Protection Agency: Publications

Induced polarization (more precisely the magnitude and phase of impedance of the subsurface) is measured using a network of electrodes located at the ground surface or in boreholes. This method yields important information related to the distribution of permeability and contaminants in the shallow subsurface. We propose a new time-lapse 3-D modelling and inversion algorithm to image the evolution of complex conductivity over time.We discretize the subsurface using hexahedron cells. Each cell is assigned a complex resistivity or conductivity value. Using the finite-element approach, we model the in-phase and out-of-phase (quadrature) electrical potentials on the 3-D grid, which are then …

Me-Em 2011 Annual Report, Department Of Mechanical Engineering-Engineering Mechanics, Michigan Technological University

Department of Mechanical and Aerospace Engineering Annual Reports

Table of Contents

• ME-EM: 85 Years of Excellence
• Faculty & Staff
• Enrollment & Degrees
• Alumni
• Resources
• Graduates

A Collaborative Computational Framework For Multidisciplinary And Reliability-Based Analysis And Optimization Using Sorcer, Karkada Nagesha Aithala

Browse all Theses and Dissertations

In a globalized and highly competitive world of product design, collaboration is a necessity to leverage the expertise available among various engineering teams to meet stringent product specifications and strict product delivery schedules reducing the concept to release time, and hence maintaining a competitive edge in the market. Physical location of teams may span organizational firewalls and different countries. Seamless access must be provided to hundreds of design tools that are utilized by the teams to carry out multidisciplinary analysis, optimization, and reliability studies in order to accurately estimate product performance. Service ORiented Computational EnviRonment (SORCER) is one of the …

บทบรรณาธิการ, ประมวล สุธีจารุวัฒน

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

อนาคตรถไฟจะไปอย่างไร, นคร จันทศร

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

บทสัมภาษณ์ (ตอนที่ 1) ถอดความจากรายการวิทยุ "จุฬาวิจัย" ออกอากาศทางสถานีวิทยุแห่งจุฬาลงกรณ์มหาวิทยาลัย Cu Radio Fm 101.5 Mhz ประจำวันเสาร์ที่ 15 สิงหาคม 2552 ออกอากาศระหว่างเวลา 9.30-9.55 น., ยศพร พยุงสุวรรณ

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

แนวทางการพัฒนาอุตสาหกรรมรถไฟฟ้าขนส่งมวลชนและอุตสาหกรรมเกี่ยวเนื่องในประเทศไทย, ประมวล สุธีจารุวัฒน, สมพงษ์ ศิริโสภณศิลป์, ธารทัศน์ โมกขมรรคกุล, สุภารัตน์ ตันทนงศักดิ์กุล, วันชัย มีชาติ, วิษารัช สัญญาลักษณ์ฤาชัย

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

การศึกษาความต้องการและแนวทางการพัฒนากำลังคนด้านปฏิบัติการระบบขนส่งทางราง, ประมวล สุธีจารุวัฒน, นักสิทธ์ นุ่มวงษ์, วันชัย มีชาติ, ชญานุช จาตุรจินดา, วิษารัช สัญญาลักษณ์ฤาชัย

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

Education On Conceptual Modeling For Simulation- Beyond The Craft: A Summary Of A Recent Expert Panel Discussion, Durk-Jouke Van Der Zee, Andreas Tolk, Mike Pidd, Kathy Kotiadis, Antuela A. Tako

Computational Modeling & Simulation Engineering Faculty Publications

No abstract provided.

Enhancing Simulation Composability And Interoperability Using Conceptual/Semantic/Ontological Models, Andreas Tolk, John A. Miller

Computational Modeling & Simulation Engineering Faculty Publications

(First paragraph) Two emerging trends in Modeling and Simulation (M&S) are beginning to dovetail in a potentially highly productive manner, namely conceptual modeling and semantic modeling. Conceptual modeling has existed for several decades, but its importance has risen to the forefront in the last decade (Taylor and Robinson, 2006; Robinson, 2007). Also, during the last decade, progress on the Semantic Web has begun to influence M&S, with the development of general modeling ontologies (Miller et al, 2004), as well as ontologies for modeling particular domains (Durak, 2006). An ontology, which is a formal specification of a conceptualization (Gruber et al, …

Software Reuse For Modeling And Simulation, Emily Andrew, Charles D. Turnitsa, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

In Modeling and Simulation, as a distinct area of software engineering, there is much interest in being able to reuse software components. However, the practice of simulation development and maintenance is different from software engineering because of several factors. In this paper, a brief overview of the foundations of interoperability, and how they apply to the reuse of model based software is explored, as well as examination of current practices to include M&S software repositories. Some recommendations, based on research at the Virginia Modeling Analysis and Simulation Center (VMASC) and practice at the Raytheon Company Network Centric Services, are made.

Executable Architecture Research At Old Dominion University, Andreas Tolk, Johnny J. Garcia, Edwin A. Shuman

Computational Modeling & Simulation Engineering Faculty Publications

Executable Architectures allow the evaluation of system architectures not only regarding their static, but also their dynamic behavior. However, the systems engineering community do not agree on a common formal specification of executable architectures. To close this gap and identify necessary elements of an executable architecture, a modeling language, and a modeling formalism is topic of ongoing PhD research. In addition, systems are generally defined and applied in an operational context to provide capabilities and enable missions. To maximize the benefits of executable architectures, a second PhD effort introduces the idea of creating an executable context in addition to the …

The Influence Of Macrophage Depletion On Ligament Healing, Connie S. Chamberlain, Ellen M. Leiferman, Kayt E. Frisch, Sijian Wang, Xipei Yang, Nico Van Rooijen, Geoff S. Baer, Stacey L. Brickson, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Despite a complex cascade of cellular events to reconstruct damaged extracellular matrix (ECM), ligament healing results in a mechanically inferior, scar-like tissue. During normal healing, the number of macrophages significantly increases within the wound site. Then, granulation tissue expands into any residual, normal ligamentous tissue (creeping substitution), resulting in a larger region of healing, greater mechanical compromise, and an inefficient repair process. To study the effects of macrophages on the repair process, bilateral, surgical rupture of their medial collateral ligaments (MCLs) was done on rats. Treatment animals received liposome-encapsulated clodronate, 2 days before rupture to ablate phagocytosing macrophages. Ligaments were …

Data Mining Based Learning Algorithms For Semi-Supervised Object Identification And Tracking, Michael P. Dessauer

Doctoral Dissertations

Sensor exploitation (SE) is the crucial step in surveillance applications such as airport security and search and rescue operations. It allows localization and identification of movement in urban settings and can significantly boost knowledge gathering, interpretation and action. Data mining techniques offer the promise of precise and accurate knowledge acquisition techniques in high-dimensional data domains (and diminishing the “curse of dimensionality” prevalent in such datasets), coupled by algorithmic design in feature extraction, discriminative ranking, feature fusion and supervised learning (classification). Consequently, data mining techniques and algorithms can be used to refine and process captured data and to detect, recognize, classify, …

Wind Energy Potential For Reverse Osmosis Desalination Plants In La Guajira, Colombia, Carlos Martinez-Smit

Faculty-Selected Student Works

Project report required by the Master of Science Degree in Renewable and Clean Energy.

Abstract:

The region of La Guajira, located in the north of Colombia, has a lot of potential for wind power with annual average wind speeds up to 11 m/s at 10 m height in some locations, according to the national wind map. Most of the wind potential is located in Upper Guajira, where 90% of the population is indigenous Wayuu people (among the country’s poorest population) and it is also characterized with low precipitation, 500 mm/yr, high evapotranspiration, 1500 mm/yr, and low humidity. All this creates …

ระบบและส่วนประกอบเบื้องต้นของรถไฟฟ้าขนส่งมวลชน, นัทสิทธิ์ นุ่มวงษ์

Journal of Transportation and Logistics (TRANSLOG)

No abstract provided.

Custom-Molded Foot-Orthosis Intervention And Multisegment Medial Foot Kinematics During Walking, Mark Geil

Faculty Articles

No abstract provided.

Effects Of Biochar On Products Yields During Biomass Pyrolysis In A Bubbling Bed Reactor, Pietro Palmisano, Franco Berruti, Cedric Briens

Bioenergy III: Present and New Perspectives on Biorefineries

No abstract provided.

A Single-Field Finite-Difference Time-Domain Formulations For Electromagnetic Simulations, Gokhan Aydin

Electrical Engineering and Computer Science - Dissertations

In this dissertation, a set of general purpose single-field finite-difference time-domain updating equations for solving electromagnetic problems is derived. The formulation uses a single-field expression for full-wave solution. This formulation can provide numerical results similar to those obtained using the traditional formulation with less required computer resources.

Traditional finite-difference time-domain updating equations are based on Maxwell's curl equations whereas the single-field updating equations used here are based on the vector wave equation. General formulations are derived for normal and oblique incidence plane wave cases for linear, isotropic, homogeneous and non-dispersive as well as dispersive media.

To compare the single-field updating …

Decision-Making With Heterogeneous Sensors - A Copula Based Approach, Satish Giridhar Iyengar

Electrical Engineering and Computer Science - Dissertations

Statistical decision making has wide ranging applications, from communications and signal processing to econometrics and finance. In contrast to the classical one source-one receiver paradigm, several applications have been identified in the recent past that require acquiring data from multiple sources or sensors. Information from the multiple sensors are transmitted to a remotely located receiver known as the fusion center which makes a global decision. Past work has largely focused on fusion of information from homogeneous sensors. This dissertation extends the formulation to the case when the local sensors may possess disparate sensing modalities. Both the theoretical and practical aspects …