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Articles 11941 - 11970 of 13207
Full-Text Articles in Entire DC Network
An X-Ray Study Of The Lead Titanate-Bismuth Chromate System, Tsen-Tsou Shih
An X-Ray Study Of The Lead Titanate-Bismuth Chromate System, Tsen-Tsou Shih
Masters Theses
"The lead titanate-bismuth chromate system was studied employing x-ray diffraction techniques at both room and high temperatures. Samples were prepared by sintering stoichiometric mixtures of the corresponding oxides followed by air quenching. Bismuth chromate was prepared by resintering and air quenching for four times. The results of the analyses show the structure of BiCrO₃ to be tetragonal with 8 molecules per unit cell. Solid solutions exist over the range 100 to 35 mole percent PbTiO₃ of the binary system, although small amounts of other phases are present in some regions. X-ray data at room temperature indicate the tetragonal perovskite structure …
A Shunt-Feed Antenna System On A Small Supersonic Aircraft, Larry Joseph Nanney
A Shunt-Feed Antenna System On A Small Supersonic Aircraft, Larry Joseph Nanney
Masters Theses
"A technique was developed which successfully predicted the reactance of a shunt cavity exciting the air frame of a small supersonic aircraft as an antenna. This was possible by the use of the wire above a ground place approximation which closely defined the characteristic impedance of the shunt fed cavity. A correlation was made between the maximum values of parallel resistance of the shunt fed cavity and the length of the air frame or portions of the air frame, which at this point were found to be a quarter wavelength in length. Measurements of the impedance of the shunt-feed system …
Digital Filter Design And Evaluation, David Alvarado MaguiñA
Digital Filter Design And Evaluation, David Alvarado MaguiñA
Masters Theses
"This thesis is concerned with the application of two digital filter design techniques to the Pade approximate continuous filters. The (m, n) Pade approximant has a numerator polynomial of degree n in s and a denominator of degree n in s. The (n-1, n) approximates are desirable for linear phase low pass filters, pulse delay circuits without initial condition errors, and pulse forming networks. A collection of plots is shown to demonstrate the quality of the approximations in the frequency domain, as far as amplitude and phase are concerned. These low pass approximants are normalized to a cut-off frequency of …
Analog Simulation Of A Plug Flow Tubular Reactor, Jon Douglas Carson
Analog Simulation Of A Plug Flow Tubular Reactor, Jon Douglas Carson
Masters Theses
"This thesis stresses the importance of analog and digital computers in the field of reaction kinetics. The analog computer is used to simulate a chemical reaction, the hydrolysis of acetic anhydride. The hydrolysis reaction takes place in a tubular reactor. The reactor is 3/4 inch in diameter and 20 feet long. These reactor dimensions allow the reaction system to approach plug flow, if the reactants flow through the reactor at turbulent flow rates. The physical, reactor, system is used to obtain experimental data for the hydrolysis reaction. The data is obtained at reactor temperatures between 75 and 100°F. Feed concentrations …
Ferroelectric Properties Of Pbzro₃-Bifeo₃ Solid Solutions, Robert Gerson, Pen-Chu Chou, William Joseph James
Ferroelectric Properties Of Pbzro₃-Bifeo₃ Solid Solutions, Robert Gerson, Pen-Chu Chou, William Joseph James
Physics Faculty Research & Creative Works
Solid solutions of BiFeO and PbZrO3 were investigated for crystallographic and dielectric properties. A new pseudocubic perovskite phase was found, which has been tentatively indexed as orthorhombic with the same unit cell as PbZrO3 but with dielectric properties characteristic of a ferroelectric substance. The Curie point in this series of solid solutions has a minimum of about 155°C at a composition of about (PbZrO3)0.80 (BiFeO3)0.20, which at room temperature lies on the boundary between the orthorhombic antiferroelectric and the pseudocubic ferroelectric phases. This composition has a relative dielectric constant of 800 …
The Missouri Miner, December 09, 1966
The Missouri Miner, December 09, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, December 02, 1966
The Missouri Miner, December 02, 1966
The Missouri Miner Newspaper
No abstract provided.
Missouri S&T Magazine, December 1966, Miner Alumni Association
Missouri S&T Magazine, December 1966, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
The Missouri Miner, November 11, 1966
The Missouri Miner, November 11, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, November 04, 1966
The Missouri Miner, November 04, 1966
The Missouri Miner Newspaper
No abstract provided.
Engineer's Day, The University Of Missouri At Rolla (1966), University Of Missouri At Rolla
Engineer's Day, The University Of Missouri At Rolla (1966), University Of Missouri At Rolla
Engineer's Day
Engineer's Day is a distinguished tradition on the Rolla campus. It is an occasion of public recognition of a highly respected profession as well as an opportunity for personal inquiry by high school students who may be considering careers in engineering.
This magazine, written by students on the campus, includes industrial scenes portraying something of their future professional employment. The laboratory displays which you visit today are intended for the same purpose . . . the association of campus study with professional life.
As you move about the campus, don't hesitate to ask questions. This day is for you. Make …
The Missouri Miner, October 28, 1966
The Missouri Miner, October 28, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, October 21, 1966
The Missouri Miner, October 21, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, October 14, 1966
The Missouri Miner, October 14, 1966
The Missouri Miner Newspaper
No abstract provided.
Missouri S&T Magazine, October 1966, Miner Alumni Association
Missouri S&T Magazine, October 1966, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
The Missouri Miner, September 30, 1966
The Missouri Miner, September 30, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 23, 1966
The Missouri Miner, September 23, 1966
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 16, 1966
The Missouri Miner, September 16, 1966
The Missouri Miner Newspaper
No abstract provided.
Missouri S&T Magazine, August 1966, Miner Alumni Association
Missouri S&T Magazine, August 1966, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
Missouri S&T Magazine, June 1966, Miner Alumni Association
Missouri S&T Magazine, June 1966, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
The Missouri Miner, May 20, 1966
The Missouri Miner, May 13, 1966
The Missouri Miner, May 06, 1966
The Missouri Miner, April 29, 1966
The Missouri Miner, April 22, 1966
The Missouri Miner, April 15, 1966
The Missouri Miner, March 25, 1966
The Missouri Miner, March 18, 1966
The Missouri Miner, March 04, 1966
The Missouri Miner, February 25, 1966
The Missouri Miner, February 25, 1966
The Missouri Miner Newspaper
No abstract provided.