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The Effect of Two Plans of Elementary School Organization on Rapid Learners and Non-Rapid Learners

Description: The primary purpose was to determine whether there were differences in the amount of change produced by two plans of elementary school organization for the instruction of rapid learners in order to develop a sound policy of organizing the elementary school. A secondary purpose was to determine the effects of the two plans on other pupils in the sections being studied.
Date: June 1962
Creator: Locke, Caroline Jane, 1912-
Partner: UNT Libraries

Electrostatic Classification of Submicron Airborne Particles : Progress Report, December 15, 1960 to February 15, 1961

Description: Introduction: "This program is a study of the basic variables that affects electrostatic classification of heterogeneous aerosols of submicron size, especially below 0.1 micron. The variables of concern are particle size, concentration, composition, shape, and initial charge. During this period optimum charger design was studied. The results will serve as a basis for a systematic study of particle charging. A number of improvements were incorporated into the classifier flow system and electrical circuits. The technique for photographing deposits in the electron microscope was also improved, and sample photographs are included."
Date: 1961
Creator: Langer, G.
Partner: UNT Libraries Government Documents Department

Electrostatic Classification of Submicron Airborne Particles : Progress Report, February 15 to April 15, 1961

Description: Introduction: "This program is a study of the basic variables that affect electrostatic classifications of heterogeneous aerosols of submicron size, especially below 0.1 micron. The variables of interest are particle size, concentration, composition, shape, an initial charge. During this period emphasis was placed on studying and controlling initial charge. A new technique was developed for collecting light and electron microscope samples. Further improvements of the charging device were studied."
Date: 1961
Creator: Langer, G.
Partner: UNT Libraries Government Documents Department

Feasibility Study of a New Mass Flow System : Quarterly Report No. 3 Covering the Period from December 1, 1960 to February 28, 1961

Description: This is the third quarterly report that documents a system of mass flow that can record measurements of homogeneous flow, slurries, highly corrosive fluids and multiphase fluids, additionally considering pressure drops, measuring external to the flow, ruggedness and reliability.
Date: March 20, 1961
Creator: Burgwald, G. M.; Stone, C. A. & Genthe, William K.
Partner: UNT Libraries Government Documents Department

[Robert Caldwell at desk 1]

Description: Photograph of Robert Caldwell, the Business Manager of NTSU, sitting in a chair behind his desk. There is a pile of documents on his desk and a typewriter in front of him. He is wearing a suit with a striped tie and glasses. Behind him there is a filing cabinet and a calculator.
Date: February 1961
Partner: UNT Libraries Special Collections

[Robert Caldwell at desk 2]

Description: Photograph of Robert Caldwell, the Business Manager of NTSU, sitting in a chair behind his desk. There is a pile of papers on his desk and photographs on top of the drawers behind him. He is wearing a suit with a striped tie and glasses.
Date: February 1961
Partner: UNT Libraries Special Collections