| A Study of Bonding Cellulose Acetate to Polyarylsulfone, |
FEB 1973 |
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| Authors:
Paul William Cross; ARMY MOBILITY EQUIPMENT RESEARCH AND DEVELOPMENT COMMAND FORT BELVOIR VA
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 | The objective of this study was to develop a method by which ultrathin films (500 to 1500 angstroms in thickness) of cellulose acetate could be bonded to microporous supports of polyarylsulfone. In addition to the bonding requirements, the method developed could not adversely affect the salt (NaCl) rejecting and flow characteristics of the cellulose acetate-polysulfone composite. A successful method was found to be the application of a dilute solution (1.5 ... |
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| Study of Basic Theories of Water Condensation. |
APR 1970 |
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| Authors:
Norihiko Fukuta; Louise A. Walter; DENVER RESEARCH INST CO
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| A new growth equation for pure water and solution droplets with radii greater than or equal to about one micron has been developed. It differs from previous equations in that discrete vapor and temperature fields at the surface of growing droplets are considered. Inefficiency factors containing the accommodation and condensation coefficients are derived which control water vapor density and air temperature just above a droplet surface assuming steady state conditions. ... |
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| Evaluation of the AEL Free Water Detector for Accuracy of Ratings. |
DEC 1969 |
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| Authors:
Robert K. Johnston; Robert D. Brown; Frank Fernandez Jr; SOUTHWEST RESEARCH INST SAN ANTONIO TX
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| The accuracy of the Aeronautical Engine Laboratory (AEL) free water detector results was evaluated on samples on JP-5 fuel with controlled free water content, prepared in a 20-gpm pumping loop and in a batch-blending system. In the loop tests, AEL ratings were unaffected by fuel flow variables or sampling time but were affected by sample size and sampling method. Ratings on 500-ml line samples were about three times the amounts ... |
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| A SYSTEM FOR THE ANALYSIS OF DISSOLVED OXYGEN, NITROGEN AND ARGON IN NATURAL WATERS. |
JUN 1968 |
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| Authors:
W. Gary Williams; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF GEOLOGY AND GEOPHYSICS
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| A complete system has been developed for the shipboard analysis of dissolved oxygen, argon and nitrogen. The system includes an in situ sampler, chromatographic analysis for oxygen, argon and nitrogen and three modes of calibration. The system has been tested in the laboratory and at sea. Estimations of the composition of argon, oxygen and nitrogen in dry air and in air-saturated water are reported. Sea trials indicated that thermistor detectors ... |
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| DEVELOPMENT OF A ROTATING WATER-ELECTROLYSIS UNIT. |
JUL 1967 |
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| Authors:
John E. Clifford; Edwin S. Kolic; James T. Gates; BATTELLE MEMORIAL INST COLUMBUS OH
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| CONDENSATION IN RAREFACTION WAVE. |
DEC 1965 |
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| Authors:
Welby G. Courtney; REACTION MOTORS DIV THIOKOL CHEMICAL CORP DENVILLE N J
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| The condensation of water, methul alcohol, and carbon tetrachloride was investigated in the rarefaction wave in a shock tube, where the rarefaction wave passes through and cools the wet gas in the highpressure side of the diaphragm and thereby induces condensation. Inert gas was Ar and N2. A slow type of condensation and also 'pseudo shock' condensation was observed. Interpretation of the results has proven more difficult than anticipated. This ... |
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| ANALYSIS OF WAVE FORCES ON A 30-INCH DIAMETER PILE UNDER CONFUSED SEA CONDITIONS. |
OCT 1965 |
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| Authors:
B. W. Wilson; ARMY COASTAL ENGINEERING RESEARCH CENTER WASHINGTON D C
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| This paper discusses methods that were developed in the period 1955-1957 in the analysis of wave force measurements on a 30-inch diameter test pile in a water depth of 40 ft. in the Gulf of Mexico. Procedures for reducing the raw data to a form suitable for digital computer operations are outlined. Measurements of wave elevation eta (t) at the pile, obtained by motion picture camera, were successfully checked with ... |
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| RE-EXAMINATION OF NUCLEATION AND CONDENSATION OF WATER, |
JUL 1964 |
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| Authors:
Welby G. Courtney; THIOKOL CHEMICAL CORP DENVILLE NJ REACTION MOTORS DIV
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| This paper presents a critical re-examination of several nucleation theories (excluding the surface-energy problem) and concludes that Kuhrt's thermodynamic theory for cluster formation in monoatomic vapor, which follows the classical liquid-drop model but conserves degrees of freedom, is procedurally correct. The Kuhrt approach is extended to polyatomic vapors. Assuming that non-atomic vibration modes are equally probable in the condensed phase, the resulting correction factors to the classical rate of nucleation ... |
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| STUDY OF THE PHOTOCATALYZED DECOMPOSITION OF WATER AND OF THE MECHANISMS OF INTRAMOLECULAR ELECTRON TRANSFER IN ORGANIC COMPOUNDS. |
14 MAY 1964 |
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| Authors:
Lawrence J. Heidt; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| Gross and net quantum yield measurements were made for the photochemical conversion by light of 2537 A of up to 1.4% of the ferrous to ferric sulfate and of the accompanying production of gaseous H2 in aqueous H2SO4 at 25C. The data support the hypothesis that in solution 2M or less in dilute H2SO4, FeSO4 exists mostly as ion pairs which in 6.0 M H2SO4 are partly replaced by contact ... |
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| HYDRA PROGRAM HYDRA IIB SERIES. INVESTIGATION BY WATER SAMPLING OF THE INTERNAL STRUCTURE OF COLUMNS RESULTING FROM SMALL SHALLOW UNDERWATER EXPLOSIONS, |
13 SEP 1963 |
69 pages |
| Authors:
K. W. Kaulum; NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF
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 | The internal structure of the columns from onepound high-explosive shallow underwater explosions has been investigated by means of water sampling for several shallow charge depths. Water samples taken at varying times across the column diameter at several heights up to 8 ft. are used to compute the thickness of the water seal between the explosion product gas bubble and the air of the initial column formation and the total volume ... |
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| REPORT OF COOPERATIVE INVESTIGATION WITH THE AGRICULTURAL RESEARCH SERVICE FOR ADAPTING A METHOD FOR THE DETECTION AND MEASUREMENT OF FENAC IN IRRIGATION WATERS, |
02 AUG 1963 |
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| Authors:
E. T. Lyons ; P. R. Tranutt ; L. O. Timblin Jr; BUREAU OF RECLAMATION DENVER COLO
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| The data in this report show that it is possible to determine fenac (common chemical name for 2, 3, 6 trichlorophenylacetic acid 1/2/) in irrigation waters in concentrations as low as 20 ppb by the use of gas chromatographic techniques; the limit of detection alone is 10 ppb. This investigation has been successful in attaining its objective, but much remains to be done with regard to further investigation and development ... |
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