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Carrier-facilitated oxygen transport in flowing blood
(Virginia Polytechnic Institute and State University, 1982)
An experimental investigation was done on oxygen transfer into a steady, laminar flow of whole blood and hemoglobin solutions. The effects of facilitation and augmentation on the bulk transfer were studied. The transfer ...
A reduced-order crawler crane model with active control to attenuate the transient vibrations
(Virginia Polytechnic Institute and State University, 1982)
The nonlinear differential equations describing the motion of a crawler crane in a plane are formulated by applying Lagrange's equation to the system kinetic energy, potential energy and virtual work. The transient response ...
Head augmentation in hydraulic turbines by means of draft tube ejectors
(Virginia Polytechnic Institute and State University, 1982)
The use of draft tubes with annular injection was investigated with respect to low-head applications. A numerical model was developed and refined to fit the data from two laboratory test models. The latter model was a ...
Simplified real-time PAH measurement techniques
(Virginia Polytechnic Institute and State University, 1982)
The increased use of residential wood and coal stoves in recent years h.as caused a growing concern for polycyclic aromatic hydrocarbon (PAH) emissions from these stoves. Design of stoves that reduce PAH emissions has been ...
An investigation of the three-dimensional vibration characteristics of a rotor-bearing system using the finite element method
(Virginia Polytechnic Institute and State University, 1982)
A vibration analysis of a high-speed rotor-bearing system using the finite element is presented. Models were developed to study the effect of rotor mass and stiffness, support bearing stiffness, and bearing pedestal stiffness ...
An experimental investigation of instability in turbulent-flow freezing
(Virginia Polytechnic Institute and State University, 1982)
An experimental investigation of the solidification of a fully developed turbulent internal flow due to external cooling of the tube wall was conducted. A region of unstable freezing behavior was located and bounded in ...
A theoretical one-dimensional analysis of both the temperature and stress distributions in a flat semitransparent plate subjected to a high intensity radiative source at arbitrary incidence angles
(Virginia Polytechnic Institute and State University, 1982)
The temperature and thermal stress distributions in a semi-transparent solid of flat plate geometry exposed to a collimated radiative source for various angles of incidence is investigated. This plate is convectively ...
The effect of operating conditions on emissions from a two-stage lump coal combustor
(Virginia Polytechnic Institute and State University, 1982)
Residential coal stoves emit various pollutants such as CO, NO<sub>x</sub>, SO<sub>x</sub>, and smoke. The emissions can be reduced by varying the burning conditions in the stove. This investigation studied the effect of ...
Synthesis of a near-optimum finite element mesh
(Virginia Polytechnic Institute and State University, 1982)
A finite element program post-processor is developed to help synthesize a near-optimum mesh. This post-processor displays, interactively, six different energy functions, along with the usual stress functions. The six energy ...
Analysis of flat-plate solar collector durability test data
(Virginia Polytechnic Institute and State University, 1982)
The National Bureau of Standards conducted outdoor durability tests on eight different types of commercially available flat plate solar collectors. The test results for five types of collectors are analyzed. The purpose ...