Mechanical Engineering Commons^™

Test 1774: John Deere 8210t 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 …

Test 1773: John Deere 8210 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 …

Test 1781b: Massey Ferguson 8245 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 1769: Agco Lt70 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Matrix Structural Analysis, 2nd Edition, William Mcguire, Richard H. Gallagher, Ronald D. Ziemian

Faculty Books

The aims of the first edition of Matrix Structural Analysis were to place proper emphasis on the methods of matrix structural analysis used in practice and to lay the groundwork for more advanced subject matter. This extensively revised Second Edition accounts for changes in practice that have taken place in the intervening twenty years. It incorporates advances in the science and art of analysis that are suitable for application now, and will be of increasing importance in the years ahead. It is written to meet the needs of both the present and the coming generation of structural engineers.

KEY FEATURES …

Test 1771: John Deere 5205 Diesel 8-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 1929: Case Ih Mx 90c Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Electroanalysis Using Differential Pulse Methods And Stripping Techniques., Enda Howard

Masters

Application of a differential pulse waveform to a microelectrode or a rotating disk electrode results in a peaked response for amperometric redox reactions. Based on these observations models were proposed and tested for these methods. Simulations of the models were carried out by inputting the relevant equations into Microsoft Excel. The microelectrode study revealed a good correlation between one model and the numerical derivative of the current following a linear sweep potential waveform. Experimentally the derivative can be obtained numerically following a linear sweep. The alternative differential pulse waveform requires more sophisticated equipment and the response can be affected by …

The Development Of Design And Test Methodologies For Hovercraft, John Cronin

Theses

This project is concerned with the development of design and test methodologies for hovercraft.

Full-scale hovercraft field-testing is to be achieved through the dedicated re-design and re-construction of the ABl11Crossbow hovercraft. The Crossbow hovercraft is an experimental craft, which was built in England in the early seventies. The Crossbows re-design focuses on the production of a versatile craft, which is capable of modification to produce a variety of different operating conditions. The re-design and re-construction comprises several distinct areas. An improved and adjustable lift and thrust system is designed. The design and manufacture of a new more stable and versatile …

Editorial, Ahmed Noor, Victor Birman

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

The State And Future Of Mars Polar Science And Exploration, Stephen M. Clifford, David Crisp, David A. Fisher, Ken E. Herkenhoff, Suzanne E. Smrekar, Peter C. Thomas, David D. Wynn-Williams, Richard W. Zurek, Jeffrey R. Barnes, Bruce G. Bills, Erik W. Blake, Wendy M. Calvin, Jonathan M. Cameron, Michael H. Carr, Philip R. Christensen, Benton C. Clark, Gary D. Clow, James A. Cutts, Dorthe Dahl-Jensen, William B. Durham, Fraser P. Fanale, Jack D. Farmer, Francois Forget, Kumiko Gotto-Azuma, Rejean Grard, Robert M. Haberle, William Harrison, Ralph Harvey, Alan D. Howard, Andy P. Ingersoll, Philip B. James, Jeffrey S. Kargel, Hugh H. Kieffer, Janus Larsen, Kenneth Lepper, Michael C. Malin, Daniel J. Mccleese, Bruce Murray, John F. Nye, David A. Paige, Stephen R. Platte, Jef F J. Plaut, Niels Reeh, James W. Rice, David E. Smith, Carol R. Stoker, Kenneth L. Tanaka, Ellen Mosley-Thompson, Thorsteinn Thorsteinsson, Stephen E. Wood, Aaron Zent, Maria T. Zuber, H. Jay Zwally

Department of Mechanical and Materials Engineering: Faculty Publications

As the planet's principal cold traps, the martian polar regions have accumulated extensive mantles of ice and dust that cover individual areas of ~10⁶ km² and total as much as 3-4 km thick. From the scarcity of superposed craters on their surface, these layered deposits are thought to be comparatively young-preserving a record of the seasonal and climatic cycling of atmospheric CO₂, H₂O, and dust over the past ~10⁵-10⁸ years. For this reason, the martian polar deposits may serve as a Rosetta Stone for understanding the geologic and climatic history of …

Structural And Electrical Characterization Of A Novel Mixed Conductor: Ceo2 - Sm2O3 - Zro2 Solid Solution, W. Huang, P. Shuk, M. Greenblatt, M. Croft, Fanglin Chen, M. Liu

Faculty Publications

solid solutions were synthesized for the first time by the hydrothermal method. The electrical properties of the solid solutions have been studied in air and under reducing conditions. Solid solutions with the fluorite structure were formed in all of the studied range of substitution after calcination at 1500°C. With increasing substitution up to 30 mol %, the electronic conductivity increases under a reducing atmosphere. The solid solution has good mixed electronic and ionic conductivity; the total conductivity is 0.42 S/cm at and 700°C with an estimated ionic conductivity of ca. .

Design And Integration Of A Co2 Laser Hybrid Cuting System For Materials Processing, Chee Hong Tan

Student Works (2000-2009)

A CO2 laser cutting system has been designed and developed based on hybrid motion of moving workpiece and moving beam. 1bis system has been utilised in the studies of laser cutting of various materials in various profiles. The structural design of the laser cutting system was carried out with AutoCAD Mechanical Desktop. The planning included materials selection, system configuration and re-use of existing available components in order to minimise the research budget. A fast-axial-flow CO2 laser was adopted and optimised for high output power. The beam delivery system and the laser head were designed and integrated to the entire system. …

Study Of Human Head Impact: Brain Tissue Constitutive Models., Toru Aida

Graduate Theses, Dissertations, and Problem Reports (ETD)

Finite element (FE) models of the human head have been used extensively to assess engineering response parameters (pressure, shear strain, etc.) that constitute the basis of various injury criteria including the Head Injury Criterion (HIC). There is a wide range of brain material properties reported in the literature, and linear elastic models are frequently used for the brain tissue which is viscoelastic in nature. The uncertainty around the properties of brain tissue affects the perceived importance of those response parameters under consideration. In this research, the effect on head injury criteria of five reported viscoelastic brain models and their linear …

A Leadership Model And Supervisory Skills Perceived By Production Employees, Supervisors, And Managers As Important To The Improvement Of Employee Performance In Manufacturing, Douglas R. Hotek

Dissertations and Theses @ UNI

The purpose of this research was to provide to industry and education a better understanding of what makes a supervisor a good supervisor of today's educated and technically skilled work force. Manufacturing firms that depend on advanced technologies and employee-technology relationships have made an impact on the role of supervision. The modern supervisor has a new role in managing production operations. The role has changed from that of directing and controlling employees to that of effectively leading the improvement of employee performance. This study builds upon previous research in an effort to further identify and authenticate a leadership model with …

The Effect Of Heat On Fingertip Sensitivity Of Meat Processing Workers, Brian James Finder

Dissertations and Theses @ UNI

Current research indicates that acute non-freezing cold exposure elicits short-term performance problems; namely reduced upper extremity temperature, blood flow, tactile sensitivity, and dexterity. However, various animal-related studies indicate that humans are at increased risk of incurring semi-permanent upper extremity nervous system dysfunction as a result of repeated cold exposure.

The purpose of this research was to examine various factors that may contribute to hand/arm nervous system impairment of individuals who work in a refrigerated meat-processing environment. The methodology used was primarily the Experimental Method and from studies conducted by other researchers, was driven by the following questions:

(1) How would …

Piezoceramic Actuator Placement For Acoustic Control Of Panels, Jeffrey S. Bevan

Mechanical & Aerospace Engineering Theses & Dissertations

Optimum placement of multiple traditional piezoceramic actuators is determined for active structural acoustic control of flat panels. The structural acoustic response is determined using acoustic radiation filters and structural surface vibration characteristics. Linear Quadratic Regulator (LQR) control is utilized to determine the optimum state feedback gain for active structural acoustic control. The optimum actuator location is determined by minimizing the structural acoustic radiated noise using a modified genetic algorithm. Experimental tests are conducted and compared to analytical results.

Anisotropic piezoceramic actuators exhibit enhanced performance when compared to traditional isotropic piezoceramic actuators. As a result of the inherent isotropy, these advanced …

Effects Of Ventilation On Human Thermal Comfort In Rooms, Ahmed F. Alfahaid

Mechanical & Aerospace Engineering Theses & Dissertations

Nowadays, the majority of people spend up to 90% of their time indoors; as a result, the maintenance of optimal indoor climate conditions has become important for their overall health and comfort. The main goal of this study is to predict numerically the flow and temperature patterns and the human thermal comfort conditions in an indoor environment using displacement ventilation.

A Computational Fluid Dynamics (CFD) code has been used to analyze thermal comfort conditions for a fullscale ventilated room. Unstructured grids have been used to discretize the numerical domain. Before undertaking a detailed investigation, the code was validated by comparing …