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Physical Sciences and Mathematics Commons

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Chemistry

Chemistry Faculty Research & Creative Works

1975

Articles 1 - 4 of 4

Full-Text Articles in Physical Sciences and Mathematics

The P-Nitrobenzyl System. Iv. Base-Induced Transformations In P-Nitrobenzyl Chloride, Bromide, Iodide, Tosylate, And Sulfonium Salts, Samir B. Hanna, Paul H. Ruehle Dec 1975

The P-Nitrobenzyl System. Iv. Base-Induced Transformations In P-Nitrobenzyl Chloride, Bromide, Iodide, Tosylate, And Sulfonium Salts, Samir B. Hanna, Paul H. Ruehle

Chemistry Faculty Research & Creative Works

No abstract provided.


Double Beta Decay Of ¹²⁸Te, Edward W. Hennecke, Oliver Manuel, Dwarka D. Sabu Apr 1975

Double Beta Decay Of ¹²⁸Te, Edward W. Hennecke, Oliver Manuel, Dwarka D. Sabu

Chemistry Faculty Research & Creative Works

The half-life of 128Te relative to the half-life of 130Te has been found to be t12128t12130=(1.59±0.05)×103 by measurement of the ββ-decay products, 128Xe and 130Xe, in a geologically old (2.4×109 yr) telluride ore. These results yield an upper limit on the lepton nonconservation parameter, η≤0.8×10-4. RADIOACTIVITY ββ-decay 128Te; measured T1/2=1.5×1024 yr; deduced η≤0.8×10-4. Detected excess 128Xe in old Te ore.


A Piagetian Approach To General Chemistry, Donald W. Beistel Jan 1975

A Piagetian Approach To General Chemistry, Donald W. Beistel

Chemistry Faculty Research & Creative Works

No abstract provided.


Locating The St. Louis Urban Plume At 80 And 120 Km And Some Of Its Characteristics, J. F. Stampfer, J. A. Anderson Jan 1975

Locating The St. Louis Urban Plume At 80 And 120 Km And Some Of Its Characteristics, J. F. Stampfer, J. A. Anderson

Chemistry Faculty Research & Creative Works

The feasibility of locating the urban plume of a moderately large urban area, as far as 120 km downwind, is shown. The method utilizes a single engine aircraft and aerosol instrumentation. A summary of the data obtained from 34 flights, during an 8-month period, is presented and the problems involved in interpreting the data are discussed. These difficulties include nonuniform background levels outside the plume, changing relative humidity, low wind speeds and stable atmospheric layers. The plume was characterized by concentrations of small particles (0.15 < r < 0.3 μm) ca. 1.5 times that in background air and concentrations of large particles (0.3 < r < 1.3 μm) usually greater than twice that in the background. The ratio of the concentrations of small particles to large particles in the plume was about one-half of that in the background. © 1975.