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Articles 31 - 37 of 37
Full-Text Articles in Mechanical Engineering
The Effects Of Shading By Open-Pile Structures On The Density Of Spartina Alterniflora, Heather L. Mcguire
The Effects Of Shading By Open-Pile Structures On The Density Of Spartina Alterniflora, Heather L. Mcguire
Dissertations, Theses, and Masters Projects
No abstract provided.
Nonlinearity Parameters Of Polymers, Meng-Chou Wu
Nonlinearity Parameters Of Polymers, Meng-Chou Wu
Dissertations, Theses, and Masters Projects
Three types of acoustic nonlinearity parameters for solids are discussed. The results of measurements of these parameters for three polymers--polymethyl methacrylate, Polystyrene, and polysulfone--are presented.;The author has developed a new technique, using piezoelectric transducers directly bonded to the specimens, which allows the measurements of fundamental and second harmonics generated in the solids, and thereby the determination of nonlinearity parameter {dollar}\beta\sb3{dollar}, which is the ratio of a linear combination of second- and third-order elastic coefficients to the second-order elastic coefficient.;The second nonlinearity parameter, B/A can be determined from the temperature and pressure derivatives of the sound velocity. We derive its exact …
Advanced Turbulence Closure Models And Their Application To Buoyant And Nonbuoyant Flows, Mohamed Zaki Moustafa
Advanced Turbulence Closure Models And Their Application To Buoyant And Nonbuoyant Flows, Mohamed Zaki Moustafa
Dissertations, Theses, and Masters Projects
In recent years, different approaches for modeling Reynolds stresses have been pursued by various authors. Two different closure schemes, representing two schools of thought, have been selected. The first closure scheme is the k-&\varepsilon& model. The second closure scheme is the level two model. Each group has claimed that the proposed models are an improvement and an advancement over previous models employing the mixing length hypothesis as a closure scheme. Neither group however, has made thorough comparisons between the newly proposed schemes and the most commonly used approach the mixing length hypothesis. The main objective of this paper is to …
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Recommendations For Amelioration Of Legal And Environmental Concerns About Mining Of Deepsea Deposits Of Polymetallic Sulfides, Michael P. De Luca
Dissertations, Theses, and Masters Projects
No abstract provided.
Late Cenozoic Landforms, Stratigraphy And History Of Sea Level Oscillations Of Southeastern Virginia And Northeastern North Carolina, Pamela Crowson Peebles
Late Cenozoic Landforms, Stratigraphy And History Of Sea Level Oscillations Of Southeastern Virginia And Northeastern North Carolina, Pamela Crowson Peebles
Dissertations, Theses, and Masters Projects
A depositional model accounting for the stratigraphic sequences which accumulate during a marine transgression across a dissected coastal plain aids in understanding the geologic history of southeastern Virginia and northeastern North Carolina. Application of this model to the Shirley Formation (middle Pleistocene) and the Sedgefield and Lynnhaven members of the Tabb Formation (late Pleistocene) allows delineation of (1) the facies within, (2) the areal extent of, and (3) the landforms associated with these lithostratigraphic units. Facies within each lithostratigraphic unit consist of (1) a vertical succession from local, basal, channel-fill deposits and coarse, basal, lag deposits which grade upward into …
Investigation Of Thermal Conductivity Gage Calibrations In Condensible Vapors, Leonard Theodore Melfi
Investigation Of Thermal Conductivity Gage Calibrations In Condensible Vapors, Leonard Theodore Melfi
Dissertations, Theses, and Masters Projects
No abstract provided.
An Indicating Meter For Measuring Intensity Level Of Sound, Walter Sanders Foster
An Indicating Meter For Measuring Intensity Level Of Sound, Walter Sanders Foster
Dissertations, Theses, and Masters Projects
No abstract provided.