Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Energy Systems (80)
- Physical Sciences and Mathematics (68)
- Other Mechanical Engineering (62)
- Education (60)
- Arts and Humanities (59)
-
- History (59)
- History of Science, Technology, and Medicine (59)
- Science and Mathematics Education (59)
- United States History (59)
- Aerospace Engineering (19)
- Applied Mechanics (15)
- Manufacturing (9)
- Industrial Engineering (5)
- Operations Research, Systems Engineering and Industrial Engineering (5)
- Civil and Environmental Engineering (4)
- Computer-Aided Engineering and Design (4)
- Electrical and Computer Engineering (4)
- Heat Transfer, Combustion (4)
- Materials Science and Engineering (4)
- Structures and Materials (4)
- Chemical Engineering (3)
- Computer Sciences (3)
- Engineering Science and Materials (3)
- Aerodynamics and Fluid Mechanics (2)
- Artificial Intelligence and Robotics (2)
- Biomechanical Engineering (2)
- Chemistry (2)
- Electro-Mechanical Systems (2)
- Institution
-
- University of Nebraska - Lincoln (68)
- University of Central Florida (17)
- New Jersey Institute of Technology (12)
- Missouri University of Science and Technology (11)
- Old Dominion University (9)
-
- Brigham Young University (8)
- California Polytechnic State University, San Luis Obispo (7)
- Cleveland State University (5)
- Utah State University (4)
- Florida International University (3)
- Munster Technological University (3)
- Claremont Colleges (2)
- Louisiana Tech University (2)
- National Taiwan Ocean University (2)
- San Jose State University (2)
- University of Dayton (2)
- University of Mississippi (2)
- William & Mary (2)
- Air Force Institute of Technology (1)
- Boise State University (1)
- Edith Cowan University (1)
- George Fox University (1)
- Portland State University (1)
- Selected Works (1)
- SelectedWorks (1)
- Syracuse University (1)
- Technological University Dublin (1)
- University of Kentucky (1)
- University of Northern Iowa (1)
- University of Rhode Island (1)
- Keyword
-
- Buildings (12)
- Design (4)
- Air Flow (3)
- Ducts (3)
- Engineering education (3)
-
- HVAC (3)
- Mechanics (3)
- Nonlinear control (3)
- Photovoltaics (3)
- Ventilation (3)
- Atomic (2)
- Attics (2)
- Automobiles (2)
- Computer vision (2)
- Cooling (2)
- Electrochemistry (2)
- Energy Efficiency (2)
- Engineering (2)
- Engineering design (2)
- Force (2)
- Galerkin approximation (2)
- Hopfield Neural Nets (2)
- Humidity (2)
- Mechanical engineering (2)
- Microscope (2)
- Modified Hopfield Neural Networks (2)
- Navigation (2)
- Neurocontrollers (2)
- PV Arrays (2)
- Publications (2)
- Publication
-
- Nebraska Tractor Tests (59)
- FSEC Energy Research Center® (17)
- Theses (11)
- Mechanical and Aerospace Engineering Faculty Research & Creative Works (10)
- Faculty Publications (9)
-
- Mechanical & Aerospace Engineering Theses & Dissertations (8)
- Lester F. Larsen Tractor Museum: Planning and Development Documents (7)
- Mechanical Engineering Faculty Publications (5)
- Dissertations (4)
- Doctoral Dissertations (3)
- FIU Electronic Theses and Dissertations (3)
- Industrial and Manufacturing Engineering (3)
- Undergraduate Honors Capstone Projects (3)
- All HMC Faculty Publications and Research (2)
- Dissertations, Theses, and Masters Projects (2)
- Journal of Marine Science and Technology (2)
- Mechanical Engineering (2)
- Mechanical and Aerospace Engineering Faculty Publications (2)
- Office of the Provost Scholarship (2)
- Ole Miss Engineer (2)
- All Faculty Presentations - School of Engineering and Computer Science (1)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (1)
- Articles (1)
- Burford J. Furman (1)
- Civil Engineering Faculty Publications and Presentations (1)
- Department of Mechanical and Materials Engineering: Faculty Publications (1)
- Dissertations and Theses (1)
- Dissertations and Theses @ UNI (1)
- Electrical Engineering and Computer Science - All Scholarship (1)
- Faculty Publications - Biomedical, Mechanical, and Civil Engineering (1)
- Publication Type
Articles 151 - 178 of 178
Full-Text Articles in Mechanical Engineering
Nebraska Summary 288: John Deere 6310 Syncroplus Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Summary 288: John Deere 6310 Syncroplus Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA
The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.
EXPLANATION OF THE TEST PROCEDURES
Purpose
The purpose of …
Nebraska Summary 289: John Deere 6310 Powrquad Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Summary 289: John Deere 6310 Powrquad Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA
The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.
EXPLANATION OF THE TEST PROCEDURES
Purpose
The purpose of …
Nebraska Summary 320: Massey Ferguson 8270 And 8170 Diesel 18-Speed, Nebraska Tractor Test Lab
Nebraska Summary 320: Massey Ferguson 8270 And 8170 Diesel 18-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA
The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data.
EXPLANATION OF THE TEST PROCEDURES
Purpose
The purpose of …
Test 1703s - S191: New Holland 4630 (Chassis S/N *0911518* And Higher), Nebraska Tractor Test Lab
Test 1703s - S191: New Holland 4630 (Chassis S/N *0911518* And Higher), Nebraska Tractor Test Lab
Nebraska Tractor Tests
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …
Test 1745: John Deere 8200t Dieel 16-Speed, Nebraska Tractor Test Lab
Test 1745: John Deere 8200t Dieel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1746: John Deere 8300t Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1746: John Deere 8300t Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1748: Caterpiller Challenger 65e Diesel 10-Speed, Nebraska Tractor Test Lab
Test 1748: Caterpiller Challenger 65e Diesel 10-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1749: Caterpiller Challenger 75e Diesel 10-Speed`, Nebraska Tractor Test Lab
Test 1749: Caterpiller Challenger 75e Diesel 10-Speed`, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1751: Caterpiller Challenger 95e Diesel 10-Speed, Nebraska Tractor Test Lab
Test 1751: Caterpiller Challenger 95e Diesel 10-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1752: Agco Allis 9745 Diesel 18-Speed, Nebraska Tractor Test Lab
Test 1752: Agco Allis 9745 Diesel 18-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1753: White 8410 Diesel 18-Speed, Nebraska Tractor Test Lab
Test 1753: White 8410 Diesel 18-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1757: John Deere 5510 Diesel 9-Speed, Nebraska Tractor Test Lab
Test 1757: John Deere 5510 Diesel 9-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1758: Agco Allis 9735 Diesel 32-Speed, Nebraska Tractor Test Lab
Test 1758: Agco Allis 9735 Diesel 32-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Statistical Analysis Of Structural Response Via A Quadratic Regression Model, Mahesh Balasubramanian
Statistical Analysis Of Structural Response Via A Quadratic Regression Model, Mahesh Balasubramanian
Masters Theses
"Described herein is the development of an efficient capability to analyze the statistics of structural responses given a description of the statistics of the input, or design, variables. In the application of interest, inputs and outputs are related through a very large finite element model. The finite element model is approximated here by a second-order hyper-surface. Developed for the quadratic relationship are expressions for response means, standard deviations and correlation coefficients. The analysis allows correlated and uncorrelated input variables, and admissible input variable distributions are normal, log-normal and Weibull.
In addition to characterizations of response means, standard deviations and correlation …
Battery-Operated Atomic Force Microscope, Burford J. Furman, J. Christman, M. Kearny, F. Wojcik, M. Tortonese
Battery-Operated Atomic Force Microscope, Burford J. Furman, J. Christman, M. Kearny, F. Wojcik, M. Tortonese
Burford J. Furman
The design of a battery-operated atomic force microscope (AFM) using a piezoresistive cantilever is described. The AFM is designed so that all power to drive the scanning tube and detection electronics comes from a self-contained battery. The prototype AFM uses a 6 V, Ni–Cd, camcorder battery, however, any battery that supplies between 6 and 12 V may be used. Scanner control and data acquisition are implemented using commercially available software running on an external computer. The prototype AFM achieves a scan area of 53 by 53 μm, consumes 1.8 W of power, and can scan continuously for about 7 h …
Cell Mapping Based Fuzzy Control Of Car Parking, Tea-Quin Kim, Ming-Chuan Leu
Cell Mapping Based Fuzzy Control Of Car Parking, Tea-Quin Kim, Ming-Chuan Leu
Mechanical and Aerospace Engineering Faculty Research & Creative Works
This paper describes the development of a near-optimal fuzzy controller for maneuvering a car in a parking lot. To generate the rules of the fuzzy controller, a cell mapping method is utilized to systematically generate near-optimal trajectories for all possible initial states in the parking lot. Based on the input-output relations of these trajectories, which represent the states and controls of the corresponding cells, a set of fuzzy rules are generated automatically. In order to result in a small number of fuzzy rules from the large amount of numerical information generated by cell mapping, grouping of trajectories is proposed and …
A Class Of Modified Hopfield Networks For Control Of Linear And Nonlinear Systems, Jie Shen, S. N. Balakrishnan
A Class Of Modified Hopfield Networks For Control Of Linear And Nonlinear Systems, Jie Shen, S. N. Balakrishnan
Mechanical and Aerospace Engineering Faculty Research & Creative Works
This paper presents a class of modified Hopfield neural networks (MHNN) and their use in solving linear and nonlinear control problems. This class of networks consists of parallel recurrent networks which have variable dimensions that can be changed to fit the problems under consideration. It has a structure to implement an inverse transformation that is essential for embedding optimal control gain sequences. Equilibrium solutions are discussed. Numerical results for a motivating aircraft control problem (linear) are presented. Furthermore, we formulate the state-dependent Riccati equation method (SDRE) for a class of nonlinear dynamical system and show how MHNN provides the solution. …
Adjustable Ice Fishing Tip-Up, Ashok Midha
Adjustable Ice Fishing Tip-Up, Ashok Midha
Mechanical and Aerospace Engineering Faculty Research & Creative Works
An ice fishing tip-up includes a base frame adapted to span a hole in a layer of ice over a body of water, and carrying a mast which is extendible through the hole into the water. The mast includes a shaft fixed at its lower end to a spool of fishing line and at its upper end to a cam cylinder with a helical groove formed in its outer surface. A signal staff is spring-biased to a raised position and is movable to a lowered position received in one of the convolutions of the helical groove. A pull on the …
Robustness Analysis Of Hopfield And Modified Hopfield Neural Networks In Time Domain, Jie Shen, S. N. Balakrishnan
Robustness Analysis Of Hopfield And Modified Hopfield Neural Networks In Time Domain, Jie Shen, S. N. Balakrishnan
Mechanical and Aerospace Engineering Faculty Research & Creative Works
A variant of the Hopfield network, called the modified Hopfield network is formulated. This network which consists of two mutually recurrent networks has more free parameters than the well-known Hopfield network. Stability analysis of this network is presented. The analysis is carried out in the time domain with an application of the Lyapunov method and robust control Lyapunov function. The current flow in the network is treated as a "control". This "controller" is shown to guarantee "a practically stabilizing control". Analysis of the Hopfield network is also included for completion.
Aerodynamic Interference For Hypersonic Missiles At Low Angle Of Attack, Harlan F. Nelson, Derek G. Hillstrom
Aerodynamic Interference For Hypersonic Missiles At Low Angle Of Attack, Harlan F. Nelson, Derek G. Hillstrom
Mechanical and Aerospace Engineering Faculty Research & Creative Works
A Euler code is used to predict the flow field over a hypersonic missile and to determine the carryover factors KW(B), fin lift in the presence of the body, and KB(W), lift produced by the body in the presence of the fins. The missile is assumed to have cruciform, delta fins in the + orientation and an aspect ratio of 1.529. Results are presented as a function of fin span at Mach 6, 8, and 10, for a 2-deg angle of attack. Two ratios of specific heats, 1.4 and 1.3, are considered to partially account for vibrational excitation effects. Both …
The Effect Of A Baffle On Acoustic Radiation Directivity, Walter Eversman, Indranil Danda Roy
The Effect Of A Baffle On Acoustic Radiation Directivity, Walter Eversman, Indranil Danda Roy
Mechanical and Aerospace Engineering Faculty Research & Creative Works
An investigation is made of the effect of an artificial baffle introduced in Finite Element modeling of acoustic radiation from turbofan inlets. The purpose of the baffle is to limit the extent of the computational domain in order to maximize the efficiency of the scheme. However, the possibility exists that the baffle, if improperly oriented, will generate spurious reflections which interfere with the true radiated acoustic field. A generic example of a turbofan inlet, including typical geometry and non-uniform potential flow in and around the nacelle, is modeled with a baffle as typically introduced limiting the angular extent of the …
An Integrated Approach To Determining The Sequence Of Machining Operations For Prismatic Parts With Interacting Features, Alan C. Lin, Shou Yee Lin, Das Diganta, Wen F. Lu
An Integrated Approach To Determining The Sequence Of Machining Operations For Prismatic Parts With Interacting Features, Alan C. Lin, Shou Yee Lin, Das Diganta, Wen F. Lu
Mechanical and Aerospace Engineering Faculty Research & Creative Works
This paper proposed a framework for integrating artificial intelligence (AI) techniques and mechanistic models in the task of generating process plans for prismatic parts. The main issue of process planning addressed in this paper is the determination of the operation sequence for mechanical parts containing interacting features where machining of one feature might adversely affect the surface quality of other features. The informed graph-search strategy in AI is used to achieve the function of operation sequence planning. The search graph is built by considering alternative machining operations in converting a blank stock into the final part configuration. Several heuristic functions …
Evaluation Of Implicit Numerical Methods For Building Energy Simulation, Michael Crowley, Saleem Hashmi
Evaluation Of Implicit Numerical Methods For Building Energy Simulation, Michael Crowley, Saleem Hashmi
Articles
The stability of numerical methods used for finite-difference thermal modelling of buildings is discussed. A known instability in a commonly used process is described and alternative numerical methods with suitable stability properties are identified. With a view to selecting the optimum numerical method, the building energy simulation problem is characterized mathematically and appropriate implicit solvers are compared on the basis of accuracy and computational effort using a building related test problem prepared for this purpose. A recently developed numerical method with the necessary strong stability is found to possess higher computational efficiency than methods frequently used in this application and …
Automatic Car Registration Plate Recognition Using The Hough Transform, Shokri Gendy
Automatic Car Registration Plate Recognition Using The Hough Transform, Shokri Gendy
Theses: Doctorates and Masters
The development of automatic car registration plate recognition systems will provide greater efficiency for vehicle monitoring in automatic access control, and will avoid the need to equip vehicles with special RF tags for identification since all vehicles possess a unique registration plate. Thus this study is an attempt to introduce an automatic car registration plate recognition system based on identifying the plate characters by using the Hough transform. However, the proposed recognition system can be used in conjunction with a tag system for higher security access control. The automatic registration plate recognition could also have considerable potential in a wide …
An Evaluation Of The Aws Entry Level Welder Training Program, John R. Rice
An Evaluation Of The Aws Entry Level Welder Training Program, John R. Rice
Dissertations and Theses @ UNI
The purpose of this study was to evaluate the effectiveness of a training program for Entry Level Welders and to provide this information to the American Welding Society (AWS), industry, and educators. The problem of this study was to evaluate the AWS Entry Level Welder Training Program (ELWTP) by obtaining the opinions of faculty members who taught the program and welders who had completed the program.
Two groups comprised the research population for this study. The first group consisted of faculty members who were actually involved in teaching the course at institutions accredited by the AWS to offer the curriculum. …
Placement Of Piezoelectric Actuators For Active Control Of Vibration Using Modal Parameters, Xuegeng Zhu
Placement Of Piezoelectric Actuators For Active Control Of Vibration Using Modal Parameters, Xuegeng Zhu
Mechanical & Aerospace Engineering Theses & Dissertations
An equation is derived to model the piezoelectric actuators incorporation with flexible structures. This equation permits the comparison of the performance indices over the entire structure for a piezoelectric actuator with constant area, which is unachievable if the Finite Element Method is used for complicated structures.
An index has been developed for placement of piezoelectric actuator for control of vibration of a flexible structure. This index is derived from the definition of H2norm. Computation of the proposed index requires only the natural frequencies and corresponding mode shapes of the structures of interest. The method is well suited to large …
Thermodynamic Modeling And Analysis Of Human Stress Responses, Satish C. Boregowda
Thermodynamic Modeling And Analysis Of Human Stress Responses, Satish C. Boregowda
Mechanical & Aerospace Engineering Theses & Dissertations
A novel approach based on the second law of thermodynamics is developed to investigate the psychophysiology and quantify human stress level. Two types of stresses (thermal and mental) are examined. A Unified Stress Response Theory (USRT) is developed under the new proposed field of study called Engineering Psychophysiology. The USRT is used to investigate both thermal and mental stresses from a holistic (human body as a whole) and thermodynamic viewpoint. The original concepts and definitions are established as postulates which form the basis for thermodynamic approach to quantify human stress level. An Objective Thermal Stress Index (OTSI) is developed by …
Hysteresis Effects Of Two Interactive Droplets Burning In, Wei-Hsin Chen
Hysteresis Effects Of Two Interactive Droplets Burning In, Wei-Hsin Chen
Wei-Hsin Chen
No abstract provided.