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Articles 1 - 30 of 1156
Full-Text Articles in Engineering
Emisja Metali Ciężkich Ze Spalania Odpadów Niebezpiecznych, Robert Oleniacz, Marian Mazur, Marek Bogacki
Emisja Metali Ciężkich Ze Spalania Odpadów Niebezpiecznych, Robert Oleniacz, Marian Mazur, Marek Bogacki
Robert Oleniacz
The paper presents the results of measurements of air emissions of heavy metals from hazardous waste incineration in a multiple hearth furnace and a rotary kiln incinerator equipped with a single wet flue gas cleaning systems. In the multiple hearth furnace an industrial sewage sludge (from coke industry) was being incinerated. In the rotary kiln such wastes were being incinerated as: waste paints, varnish and lubricant, coal tars waste, contaminated cleaning rags, sawdust and used gloves, waste resins and plastics, rubber waste, outdated pharmaceuticals and medicines, and hospital waste. The research allowed us to determine the levels of pollutant concentrations …
Implant Having Reduced Generation Of Wear Particulates, David A. Pienkowski
Implant Having Reduced Generation Of Wear Particulates, David A. Pienkowski
Biomedical Engineering Faculty Patents
A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 200-2,500 …
Zastosowanie Modelu "Skrzynki" Do Oceny Poziomu Stężeń Zanieczyszczeń Komunikacyjnych W Przyziemnej Warstwie Atmosfery, Marek Bogacki, Marian Mazur, Robert Oleniacz
Zastosowanie Modelu "Skrzynki" Do Oceny Poziomu Stężeń Zanieczyszczeń Komunikacyjnych W Przyziemnej Warstwie Atmosfery, Marek Bogacki, Marian Mazur, Robert Oleniacz
Robert Oleniacz
Road transport is an essential source of nitrogen oxides (NOx), carbon monoxide (CO) and reactive hydrocarbons (RHC) emissions to atmosphere. Quantity and chemical constitution of emitted substances and meteorological conditions determine the level of ozon (O3) concentration forming as a result of photochemical reactions. The method presented in the paper consists in designation of quantity and chemical constitution of substances emitted from mo-bile sources and special mathematical modeling of physical and chemical transformations that take place in the lowest atmospheric layer.
English title: The use of box model to estimate the size of traffic pollutant concentrations in the lowest atmospheric …
Method And Apparatus For Flotation Separation, Xiang-Huai Wang
Method And Apparatus For Flotation Separation, Xiang-Huai Wang
Center for Applied Energy Research Faculty Patents
A flotation method and apparatus for separating a selected constituent from an effluent of an industrial process is provided. The apparatus includes a conditioning tank and a flotation cell. The conditioning tank allows mixing a flotation reagent with an effluent and includes a mechanism for also dissolving gas in the effluent within the conditioning tank. The flotation cell includes a dissolved gas flotation chamber having an overflow for recovering the selected constituent and a tailings drain. In addition, the flotation cell also includes an added gas flotation chamber having a sparger for injecting gas into the effluent, an overflow for …
On The Strain-Rate Sensitivity Of Columnar Ice, M. E. Manley, E. M. Schulson
On The Strain-Rate Sensitivity Of Columnar Ice, M. E. Manley, E. M. Schulson
Dartmouth Scholarship
A power law relation between stress and strain rate of the form σ ∝ ε̇1/n was used to describe the response to strain rate of S1 ice loaded across the columns at -10°C. The rate exponent, n, decreased with increasing strain from about 4.6 at an observed peak on the load displacement curve to approximately 2.6 at a shortening of 2%. Analysis of these results and of the results of other authors on different forms of ice deformed at the same temperature suggests that the power law exponent, n, is proportional to Fc/Fg. The parameter Fc/Fg is the far-field basal …
Composition Containing A Polymer And Conductive Filler And Use Thereof, Ravi F. Saraf
Composition Containing A Polymer And Conductive Filler And Use Thereof, Ravi F. Saraf
Department of Chemical and Biomolecular Engineering: Patents
A composition containing a polymeric matrix and a conductive filler component is provided. The conductive filler component comprises conductive particles and a polymer selected from the group consisting of substituted and unsubstituted polyanilines, substituted and unsubstituted polyparaphenylenevinylenes, substituted and unsubstituted polythiophenes, substituted and unsubstituted polyazines, substituted and unsubstituted polyparaphenylenes, substituted and unsubstituted polyfuranes, substituted and unsubstituted polypyrroles, substituted and unsubstituted polyselenophene, substituted and unsubstituted poly-p-phenylene sulfides and substiututed and unsubstituted polyacetylenes, and mixtures thereof, and copolymers thereof. Compositions of the present invention are useful as corrosion protecting layers for metal substrates, for electrostatic discharge protection, electromagnetic interference shielding, and as …
A Portable Photovoltaic Water Aeration System, Florida Solar Energy Center, William Young
A Portable Photovoltaic Water Aeration System, Florida Solar Energy Center, William Young
FSEC Energy Research Center®
Water aeration is a method to improve the water quality in a lake by adding oxygen to the water. Because water aeration systems are often located in remote locations, photovoltaics are ideal for powering these systems. This paper describes a water aeration system powered by photovoltaics that is used in Florida. The portable nature of this system permits the owner to conveniently relocate the system and aerate bodies of water as needed.
Statistical Continuum Theory For Inelastic Behavior Of A Two-Phase Medium, Brent L. Adams, H. Garmestani, S. Lin
Statistical Continuum Theory For Inelastic Behavior Of A Two-Phase Medium, Brent L. Adams, H. Garmestani, S. Lin
Faculty Publications
This work was supported in part (B.L. Adams) by the MRSEC Program of the National Science Foundation under Award no. DMR-9632556. Further support was provided by the Center for Materials Research and Technology (MARTECH at FSU) and Center for Nonlinear and Nonequilibrium Sciences (CENNAS at FAMU). A statistical contiuum mechanics formulation is presented to predict the inelastic behavior of a medium consisting of two isotropic phases. The phase distribution and morphology are represented by a two-point probability function. The isotropic behavior of the single phase medium is represented by a power law relationship between the strain rate and the resolved …
1998 Reduced Gravity Student Flight Opportunity: Thin Film Extrusion In Microgravity, Jason Duckworth
1998 Reduced Gravity Student Flight Opportunity: Thin Film Extrusion In Microgravity, Jason Duckworth
Honors Capstone Projects and Theses
No abstract provided.
Markovian Decision Control For Traffic Signal Systems, Xiao-Hua Yu, Allen R. Stubberud
Markovian Decision Control For Traffic Signal Systems, Xiao-Hua Yu, Allen R. Stubberud
Electrical Engineering
Setting signals at intersections to minimize the queue length and vehicle delay time is a key goal in traffic management. In this paper, a new control strategy for a signalized traffic intersection is developed by applying Markovian decision control theory. Statistical analysis of simulation results with different arrival rates indicate the excellent potential of this approach.
Optimal Block Encoding And Optimal Entropy For Lossless Image Compression, Larry Ray Dennis
Optimal Block Encoding And Optimal Entropy For Lossless Image Compression, Larry Ray Dennis
Dissertations and Theses
In this thesis, a novel approach is designed using a quad-tree stack structure to encode the image to determine the optimal block size at the optimal and effective entropy in the lossless image compression method. Proof is given through encoding of the predictor and randomly constructed planes. There is a high degree of relationship between the placement of bits in the planes. Clearly results shows that use of the optimal entropy and encoding block sizes will increase the compression ratio using the lossless method. The cost of using the block size methods to encoding and entropy is discussed and proven. …
Development And Experimental Verification Of A Three-Dimensional Model Of Left Ventricular Flow Dynamics, Tong Ding
FIU Electronic Theses and Dissertations
Ischemic heart disease, which results from the insufficient coronary artery blood flow is a leading cause of mortality in developed countries. It manifests itself by abnormal left ventricular wall motion during systole.
A three dimensional numerical model was developed to simulate the flow patterns in the left ventricle. Numerical solutions were obtained by discretizing the Navier-Stokes equations for viscous, incompressible, steady flow using finite element method.
A diagnostic index Central Ejection Region (CER) as well as its quantitative version CER coefficient which are based on the flow patterns were defined as the region in which velocity vectors were aligned 5 …
When The "Soft" Sciences Become Hard: The Safety Of Canadian Nuclear Reactors, Ibpp Editor
When The "Soft" Sciences Become Hard: The Safety Of Canadian Nuclear Reactors, Ibpp Editor
International Bulletin of Political Psychology
The author discusses the ins-and-outs of the safety of Canadian nuclear reactors.
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
Emeritus Faculty Author Gallery
No abstract provided.
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Emeritus Faculty Author Gallery
No abstract provided.
Investigation And Demonstration Of A Rich Combustor Cold Start Device For Alcohol Fueled Engines, David Kim Irick
Investigation And Demonstration Of A Rich Combustor Cold Start Device For Alcohol Fueled Engines, David Kim Irick
Doctoral Dissertations
Alcohols (methanol and ethanol) have been identified as having the potential to improve air quality when used to replace conventional gasoline. This potential is primarily due to the different organic species that are emitted by alcohol-fueled engines. The use of "near neat" alcohols gives greater benefits than fuels containing lower levels of alcohol, but neat alcohols present a significant cold starting problem.
The primary objective of this study was to develop a rich combustor device which will extend the cold start range of alcohol fueled engines to -30°C while reducing cold start emissions. In support of this objective a software …
Determination Of A Flexibility Range For Cellular Manufacturing Systems Under Product Mix Variations, Hamid Seifoddini, Manocher Djassemi
Determination Of A Flexibility Range For Cellular Manufacturing Systems Under Product Mix Variations, Hamid Seifoddini, Manocher Djassemi
Industrial Technology and Packaging
One of the underlying assumptions in cellular manufacturing is that product mix is relatively stable over time. In this paper, a procedure for the sensitivity analysis of the performance of a cellular manufacturing system with respect to changes in the product mix is presented and a flexibility range representing the capability of the system in dealing with these changes is determined using simulation modelling. The simulation results in this study show that as the changes in the product mix increase the superiority of the performance of the cellular manufacturing system to the corresponding job shop system diminishes.
Formation Of A Metastable Bcc Solid Solution And Decomposition To A C15 Laves Phase In Melt-Spun Crnb10Ti10, Katherine C. Chen, P. G. Kotula, F. Chu, Dan J. Thoma
Formation Of A Metastable Bcc Solid Solution And Decomposition To A C15 Laves Phase In Melt-Spun Crnb10Ti10, Katherine C. Chen, P. G. Kotula, F. Chu, Dan J. Thoma
Materials Engineering
A metastable, disordered bcc phase has been formed from the melt in a Cr-rich alloy of the Nb-Cr-Ti system, where large volume fractions of the Laves phase would develop under equilibrium solidification conditions. X-ray diffraction (XRD) studies and lattice constant determinations confirm that the melt-spun ribbons contain a bcc phase beyond its terminal solid solution limits. Solidification pathways are proposed based upon metastable and equilibrium phase diagrams. Microstructures have been studied using optical microscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Cross-sectional TEM reveals tiny, dispersed Laves phase precipitates within the metastable bcc grains near the chill (wheel) …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 13, Number 10, December 1997, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 13, Number 10, December 1997, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A twelve page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Flight Physician - December, 1997, Civil Aviation Medical Association
Flight Physician - December, 1997, Civil Aviation Medical Association
Browse all Civil Aviation Medical Association Newsletters
A fourteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.
The Development Of Electromechanical Batteries For Power System Support And For Short-Term Standby Power, Michael Peter O'Leary
The Development Of Electromechanical Batteries For Power System Support And For Short-Term Standby Power, Michael Peter O'Leary
Masters
The slow move from a fossil-fuel powered society to a renewable-energy powered society is creating and will continue to create a demand for good energy storage techniques. The electromechanical battery (EMB), comprising a flywheel energy storage system with electrical input and output, is one of the many candidate technologies. Two different EMB types are evaluated in this present project. The first is a ring (or annular) flywheel to be constructed using fibre composite materials and to rotate at high speed in a vacuum. Energy is to be imported and exported electromagnetically based on linear electrical machine principles. Confinement of the …
Investigation Of Two-Phase Air Water Flow Using Annubar, Ehab Fouad Shoukry
Investigation Of Two-Phase Air Water Flow Using Annubar, Ehab Fouad Shoukry
Archived Theses and Dissertations
No abstract provided.
21st Conference On Senior Engineering Design Projects, College Of Engineering And Applied Sciences
21st Conference On Senior Engineering Design Projects, College Of Engineering And Applied Sciences
Senior Engineering Design Conference
The 21st Conference on Senior Engineering Design Projects was held on December 9, 1997 at the College of Engineering and applied Sciences on the Parkview Campus of Western Michigan University. The college sponsors the conference to showcase the work of its graduating seniors, who are required to complete a capstone project that puts into practice what they have learned. Many of the projects are sponsored by business and industry.
Acuta Enews December 1997, Vol. 26, No. 12
Acuta Enews December 1997, Vol. 26, No. 12
ACUTA Newsletters
In This Issue
Sixth Annual Institutional Excellence Awards Competition
Slamming on the Rise
President's Column
Slamming
Board Report
A Great Seminar
Board Approves New Appointments
Meet Me at.... UM
Technology Timetable
On the Move
1998 ACUTA Events
Spotlight
DC at a Glance
Journal Editorial Calendar for 1998
Welcome New Members
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
Otto Vogl
No abstract provided.
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Otto Vogl
No abstract provided.
Coincidences Are Not Accidental: A Theorem, Vladik Kreinovich
Coincidences Are Not Accidental: A Theorem, Vladik Kreinovich
Departmental Technical Reports (CS)
In this paper, we formalize and prove the statement that coincidences cannot be accidental, a statement that underlies many useful heuristics in mathematics and physics.
Our proof uses a version of Kolmogorov complexity, a technique originally developed to describe randomness and "accidentalness".
Why Kolmogorov Complexity In Physical Equations, Vladik Kreinovich, Luc Longpre
Why Kolmogorov Complexity In Physical Equations, Vladik Kreinovich, Luc Longpre
Departmental Technical Reports (CS)
Several researchers, including M. Gell-Mann, argue that the notion of Kolmogorov complexity, developed in the algorithmic information theory, is useful in physics (i.e., in the description of the physical world). Their arguments are rather convincing, but there seems to be a gap between traditional physical equations and Kolmogorov complexity: namely, it is not clear how the standard equations of physics can lead to algorithmic notions underlying Kolmogorov complexity. In this paper, this "gap" is bridged: we explain how Kolmogorov complexity naturally appear in physical equation.
Introduction Of Iowa System Of Curves To Reliability Engineers, Alamgir Alvi
Introduction Of Iowa System Of Curves To Reliability Engineers, Alamgir Alvi
Masters Theses
The reliability engineers have been using different techniques and a good number of theoretical models to analyze and predict the performance of the designed systems and products. While, most of the engineers working in the area of life analysis, have been using the empirical model named Iowa systems of curves to analyze and forecast the service life of industrial properties. Two different groups of experts have obviously been working toward almost the same objective but using different techniques and tools. The purpose of this study is to introduce to reliability engineers the Iowa systems of curves and compare this empirical …