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1

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Acoustic tests of duct-burning turbofan jet noise simulation: Comprehensive data report. Volume 2: Model design and aerodynamic test results (1978)

Heck, P. H. ; Staid, P. S. ; Knott, P. R. ; [weitere]

In: CASI

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Publikationsdatum: 2019-06-27

Beschreibung: The selection procedure is described which was used to arrive at the configurations tested, and the performance characteristics of the test nozzles are given.

Schlagwort(e): AIRCRAFT PROPULSION AND POWER

Materialart: NASA-CR-135239-VOL-2

Format: application/pdf

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2

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Acoustic tests of duct-burning turbofan jet noise simulation: Comprehensive data report. Volume 1, section 2: Full size data (1978)

Staid, P. S. ; Stringas, E. J. ; Latham, D. ; [weitere]

In: CASI

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Publikationsdatum: 2019-06-27

Beschreibung: Acoustic data are presented scaled to a full size engine by a factor of 8 on a 96.9 m (320 ft) arc and a 731.5 m (2400 ft) sideline.

Schlagwort(e): AIRCRAFT PROPULSION AND POWER

Materialart: NASA-CR-135239-VOL-1-SECT-2

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3

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Acoustic tests of duct-burning turbofan jet noise simulation: Comprehensive data report. Volume 1, section 3: Data plots (1978)

Staid, P. S. ; Latham, D. ; Brausch, J. F. ; [weitere]

In: CASI

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Publikationsdatum: 2019-06-27

Beschreibung: Acoustic data plots are presented which were obtained in the tests on scale nozzles for use on duct-burning turbofan engines.

Schlagwort(e): AIRCRAFT PROPULSION AND POWER

Materialart: NASA-CR-135239-VOL-1-SECT-3

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4

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Acoustic tests of duct-burning turbofan jet noise simulation: Comprehensive data report. Volume 1, section 1: Model scale data (1978)

Staid, P. S. ; Knott, P. R. ; Heck, P. H. ; [weitere]

In: CASI

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Publikationsdatum: 2019-06-27

Beschreibung: Model scale data on a 12.2 m (40 ft) arc are presented which were obtained in the hot, static acoustic tests on eleven nozzle designs suitable for use on duct-burning turbofan engines.

Schlagwort(e): AIRCRAFT PROPULSION AND POWER

Materialart: NASA-CR-135239-VOL-1-SECT-1

Format: application/pdf

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5

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Geochemical and mineralogical interpretation of the Viking inorganic chemical results (1977)

Kelliher, W. C. ; Keil, K. ; Baird, A. K. ; [weitere]

In: Other Sources

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Publikationsdatum: 2019-06-27

Beschreibung: The current status of geochemical, mineralogical, petrological interpretation of refined Viking Lander data is reviewed, and inferences that can be drawn from data on the composition of Martian surface materials are presented. The materials are dominantly fine silicate particles admixed with, or including, iron oxide particles. Both major element and trace element abundances in all samples are indicative of mafic source rocks (rather than more highly differentiated salic materials). The surface fines are nearly identical in composition at the two widely separated Lander sites, except for some lithologic diversity at the 100-m scale. This implies that some agency (presumably aeolian processes) has thoroughly homogenized them on a planetary scale. The most plausible model for the mineralogical constitution of the fine-grained surface materials at the two Lander sites is a fine-grained mixture dominated by iron-rich smectites, or their degradation products, with ferric oxides, probably including maghemite and carbonates (such as calcite), but not such less stable phases as magnesite or siderite.

Schlagwort(e): LUNAR AND PLANETARY EXPLORATION

Materialart: Journal of Geophysical Research; 82; Sept. 30

Format: text

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6

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Jupiter's magnetic field, magnetosphere, and interaction with the solar wind - Pioneer 11 (1975)

Jones, D. E. ; Coleman, P. J., Jr. ; Smith, E. J. ; [weitere]

In: Other Sources

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Publikationsdatum: 2019-06-27

Beschreibung: Measurements of the magnetic field vector were obtained continuously throughout the encounter of the spacecraft with the planet Jupiter. Effects of Jupiter on the solar wind are considered along with the characteristics of the magnetopause at both low and intermediate latitudes, the three basic regions within the magnetosphere, and a spherical harmonic analysis of the Pioneer 11 measurements. The spherical harmonic representation has been used to derive contours of the magnetic field strength at the surface of Jupiter.

Schlagwort(e): LUNAR AND PLANETARY EXPLORATION

Materialart: Science; 188; May 2

Format: text

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7

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Sex pheromone of the tsetse fly: isolation, identification, and synthesis of contact aphrodisiacs (1978)

D. A. Carlson ; P. A. Langley ; P. Huyton

American Association for the Advancement of Science (AAAS)

In: Science. 201(4357): 750-3.

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Publikationsdatum: 1978-08-25

Beschreibung: Sex pheromones isolated from the cuticle of the female tsetse fly, Glossina morsitans morsitans Westwood, release mating behavior in the male fly at ultrashort range or upon contact with baited decoys. Three active components were identified as 15,19-dimethylheptatriacontane, 17,21-dimethylheptatriacontane, and 15,19,23-trimethylheptatriacontane. Chemical and biological comparisons show that the natural and synthetic compounds are identical.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carlson, D A -- Langley, P A -- Huyton, P -- New York, N.Y. -- Science. 1978 Aug 25;201(4357):750-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/675256" target="_blank"〉PubMed〈/a〉

Schlagwort(e): Animals ; Dose-Response Relationship, Drug ; Female ; Male ; Pheromones/*isolation & purification ; Sex Attractants/chemical synthesis/*isolation & purification/pharmacology ; Sexual Behavior, Animal/drug effects ; Tsetse Flies/*analysis

Print ISSN: 0036-8075

Digitale ISSN: 1095-9203

Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science (AAAS)

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8

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Chicken gizzard: relation between calcium-activated phosphorylation and contraction (1979)

P. E. Hoar ; W. G. Kerrick ; P. S. Cassidy

American Association for the Advancement of Science (AAAS)

In: Science. 204(4392): 503-6.

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Publikationsdatum: 1979-05-04

Beschreibung: Of the proteins in mechanically disrupted chicken gizzard fibers (no functional sarcolemma) only the 20,000-dalton light chains of myosin underwent large Ca2+-and Sr2+-dependent changes in phosphorylation. Phosphorylation closely corresponded with the Ca2+- and Sr2+-activated tensions. Adenosine 5'-O (3'-thiotriphosphate) only in the presence of Ca2+ induced irreversible Ca2+-insensitive activation of tension and thiophosphorylation of the 20,000-dalton light chains, and blocked incorporation of 32P from [gamma-32P]adenosine triphosphate into the myosin light chains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoar, P E -- Kerrick, W G -- Cassidy, P S -- New York, N.Y. -- Science. 1979 May 4;204(4392):503-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/432654" target="_blank"〉PubMed〈/a〉

Schlagwort(e): Animals ; Calcium/*pharmacology ; Chickens ; Gizzard/*physiology ; In Vitro Techniques ; Molecular Weight ; Muscle Contraction/*drug effects ; Muscle, Smooth/*physiology ; Myosins/*metabolism ; Phosphorylation ; Protein Kinases/metabolism

Print ISSN: 0036-8075

Digitale ISSN: 1095-9203

Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science (AAAS)

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9

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Inosine may be an endogenous ligand for benzodiazepine receptors on cultured spinal neurons (1979)

J. F. MacDonald ; J. L. Barker ; S. M. Paul ; [weitere]

American Association for the Advancement of Science (AAAS)

In: Science. 205(4407): 715-7.

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Publikationsdatum: 1979-08-17

Beschreibung: Mouse spinal neurons grown in tissue culture were used to study the membrane effects of the benzodiazepine flurazepam and the naturally occurring purine nucleoside inosine, which competes for benzodiazepine receptor sites in the central nervous system. Application of inosine elicited two types of transmitter-like membrane effects: a rapidly desensitizing excitatory response and a nondesensitizing inhibitory response. Flurazepam produced a similar excitatory response which showed cross-desensitization with the purine excitation. Flurazepam also blocked the inhibitory inosine response. The results provide electrophysiological evidence that an endogenous purine can activate two different conductances on spinal neurons and that flurazepam can activate one of the conductances and antagonize the other.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacDonald, J F -- Barker, J L -- Paul, S M -- Marangos, P J -- Skolnick, P -- New York, N.Y. -- Science. 1979 Aug 17;205(4407):715-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/37602" target="_blank"〉PubMed〈/a〉

Schlagwort(e): Animals ; Benzodiazepines/*metabolism ; Cells, Cultured ; Electric Conductivity ; Flurazepam/antagonists & inhibitors ; Inosine/*metabolism/pharmacology ; Ligands ; Mice ; Neurotransmitter Agents/metabolism ; Receptors, Drug/*metabolism ; Receptors, Neurotransmitter/metabolism ; Spinal Cord/*metabolism

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Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science (AAAS)

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10

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Formation of mutagens in beef and beef extract during cooking (1978)

B. Commoner ; A. J. Vithayathil ; P. Dolara ; [weitere]

American Association for the Advancement of Science (AAAS)

In: Science. 201(4359): 913-6.

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Publikationsdatum: 1978-09-08

Beschreibung: Mutagens, distinguishable from benzo[a]pyrene and from mutagenic amino acid and protein pyrolysis products, are formed when ground beef is cooked in a home hamburger cooking appliance or when beef stock is concentrated, by boiling, to a paste known commercially as beef extract. "Well-done" hamburgers contain about 0.14 part per million of the mutagens, and beef bouillon cubes which contain beef extract about 0.1 part per million. Since such mutagens may be potentially carcionogenic and are formed during ordinary cooking procedures, their occurrence raises questions about possible risks to human health.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Commoner, B -- Vithayathil, A J -- Dolara, P -- Nair, S -- Madyastha, P -- Cuca, G C -- New York, N.Y. -- Science. 1978 Sep 8;201(4359):913-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/567374" target="_blank"〉PubMed〈/a〉

Schlagwort(e): Animals ; Benzopyrenes ; Cattle ; *Hot Temperature ; Isoelectric Point ; Meat/*adverse effects ; Meat Products/adverse effects ; *Mutagens/analysis

Print ISSN: 0036-8075

Digitale ISSN: 1095-9203

Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science (AAAS)

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