ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

1

Unbekannt

Mariner Mars 1969 project report. Volume 2 - Performance Final report (1971)

Clary, M. C. ; Ashley, C. M. ; Adams, L. A. ; [weitere]

In: CASI

zur Merkliste hinzufügen auf der Merkliste

Details

Publikationsdatum: 2019-06-27

Beschreibung: Performance of Mariner Mars 1969 mission by flight and Earth-based elements during launch and space flight phases - Vol. 2

Schlagwort(e): SPACE SCIENCES

Materialart: NASA-CR-117351 , JPL-TR-32-1460-VOL-2

Format: application/pdf

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

NASA TECHNICAL REPORTS

S·F·X

Überblick

2

Unbekannt

A preliminary analysis of a radar-mapping mission to Venus (1973)

Manning, L. A. ; Evans, L. C. ; Mackay, J. S. ; [weitere]

In: CASI

zur Merkliste hinzufügen auf der Merkliste

Details

Publikationsdatum: 2019-06-27

Beschreibung: A rather broad survey is reported of the Venus radar orbiter possibilities within the period 1983-1990. Minimum mission imaging requirements have been set by comparison with the improving capabilities of earth based radar systems and an examination of earth airborne radar imaging. This has led to a requirement for 80 percent coverage at a resolution of 100 m. A first main conclusion is that only the Shuttle-Centaur launch system would be capable of establishing a circular orbit under all possible launch conditions. Thus, orbit eccentricity has been introduced as a parameter throughout this presentation. An examination of typical radar designs has led to upper and lower limits on swath width of 100 and 50 km. A lower eccentricity of 0.2 was set by considering the current Viking propulsion system. An examination of solar perturbations indicates that orbit maintenance problems increase rapidly above an eccentricity of 0.5.

Schlagwort(e): SPACE SCIENCES

Materialart: NASA-TM-X-2868 , A-4834

Format: application/pdf

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

NASA TECHNICAL REPORTS

S·F·X

Überblick

3

Unbekannt

Study of an evolutionary interim earth orbit program (1971)

Deerwester, J. M. ; Wood, R. D. ; Edsinger, L. E. ; [weitere]

In: CASI

zur Merkliste hinzufügen auf der Merkliste

Details

Publikationsdatum: 2019-08-28

Beschreibung: An evolutionary, gradual, and step-wise spacecraft systems technology development from those used on the Apollos and Skylab 1 to that required for the space station was considered. The four mission spacecraft were dry workshop versions of the Saturn 4-B stage, and each individually configured, outfitted and launched by INT-21 vehicles. These spacecraft were evaluated for crews of three, six and nine men and for mission lifetimes of one year. Two versions of the Apollo CSM, a three man and a four man crew, were considered as the logistic vehicle. The solar cell electrical power system of the first mission evolves into a light weight panel system supplemented by an operating isotope-Brayton system on the later missions. The open life support system of the first mission evolves to a system which recovers both water and oxygen on the last mission. The data handling, communications, radiation shielding, micrometeoroid protection, and orbit keeping systems were determined. The program costs were estimated and, excluding operational costs, the cost for each mission would average about $2 billion of which one-sixth would be for development, one-fourth for experiments, and the balance for vehicle acquisition.

Schlagwort(e): SPACE SCIENCES

Materialart: NASA-TM-X-69243 , MS-1

Format: application/pdf

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

NASA TECHNICAL REPORTS

S·F·X

Überblick

4

Digitale Medien

Discrimination effects in inorganic ion-cluster detection by secondary-electron multiplier in mass spectrometry experiments (1990)

Alexandrov, M. L. ; Gall, L. N. ; Krasnov, N. V. ; [weitere]

New York, NY : Wiley-Blackwell

Rapid Communications in Mass Spectrometry 4 (1990), S. 9-12

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0951-4198

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: Discrimination effects in secondary electron multipliers due to the differences in kinetic energy with which ions of different masses strike the dynode surface are investigated. The threshold energy at which ions of a particular mass can be detected is discussed. The efficiencies of such multipliers when used with cluster ions such as H+(H2O)N (where Cat+ represents an alkali-metal cation) are investigated and discussed, in terms of both the ‘kinetic’ and ‘potential’ emission coefficients.

Zusätzliches Material: 7 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/rcm.1290040104

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

5

Digitale Medien

Abnormal effects in the detection of ions from bioorganic substances by mass spectrometry (1990)

Alexandrov, M. L. ; Gall, L. N. ; Krasnov, N. V. ; [weitere]

New York, NY : Wiley-Blackwell

Rapid Communications in Mass Spectrometry 4 (1990), S. 13-15

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0951-4198

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: The characteristics of the detection of ions of the alkali metals and of cluster ions of the type (H2O)NMH+ (where M is an amino acid) are markedly different from those for the detection of protonated saccharose ions. The latter are shown to produce a signal from a secondary electron multiplier detector at a lower ion energy than the threshold energy for the former ions. An explanation is proposed in terms of the charge localization.

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/rcm.1290040105

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

6

Digitale Medien

La résonance magnétique du 77Se dans des composés organiques (1976)

Christiaens, L. ; Piette, J-L. ; Laitem, L. ; [weitere]

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 8 (1976), S. 354-356

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0030-4921

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Beschreibung / Inhaltsverzeichnis: 77Se n.m.r. spectra of twenty-six organoselenium compounds, including some with an endocyclic selenium atom, have been recorded. Our measurements complete the scale of chemical shifts previously established by McFarlane. It seems difficult to define a range of chemical shifts which is characteristic of the valency state of selenium or of its endo- or exocyclic position. Some results are discussed qualitatively. In the case of selenolo[2,3-b]thiophene, evidence has been obtained for a 4J[Se, H] coupling across the sulphur atom.

Notizen: La résonance magnétique du 77Se a été observée dans vingt-six composés organiques dont certains contiennent un atome de sélénium endocyclique. Nous avons pu ainsi compléter l'échelle de déplacements chimiques établie par McFarlane. II apparaît difficile de définir une gamme de déplacement chimique du 77Se caractéristique de son état de valence ou de sa position endo- ou exocyclique. Certains résultats sont discutés qualitativement. Dans le cas du sélénolo [2,3-b]thiophène, des arguments en faveur d'un couplage 4J(Se, H) à travers l'atome de soufre ont été découverts.

Zusätzliches Material: 4 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/mrc.1270080706

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

7

Digitale Medien

A soft X-ray spectrometer for the study of plutonium and plutonium-based materialsWork performed under the auspices of the US Department of Energy by Lawrence Livermore Laboratory, under contract number W-7405-ENG-48. (1978)

Wallance, P. L. ; Haugen, W. L. ; Gullikson, E. M. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

X-Ray Spectrometry 7 (1978), S. 160-163

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0049-8246

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: A low-energy spectrometer for the X-ray analysis of plutonium and plutonium-containing materials has been built. We use ultra-thin window to maintain different pressures and contamination level in the spectrometers's sample and crystal chambers. Ultra-thin windows are also used on the X-ray tube and detector. Methods have been developed by which the spectrometer can analyze both metal and loose-powder samples. Representative calibration spectra are presented for the fluorine band in polyfluoroethylene, the oxygen band in α-Al2 O3, and the carbon band in graphite. Experimental spectra are presented for the fluorine band in PuF3 and for the oxygen ban in PuO2.

Zusätzliches Material: 3 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/xrs.1300070310

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

8

Digitale Medien

Simultaneous determination of rare earths by x-ray fluorescence spectrometry using a fundamental parameters method (1993)

Marcó Parra, L. M. ; Greaves, E. D. ; Paz, J. L. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

X-Ray Spectrometry 22 (1993), S. 362-367

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0049-8246

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Physik

Notizen: Concentrates extracted from a lateritic mineral deposit were analysed for their rare earth (RE) content by energy-dispersive x-ray fluorescence (XRF) spectrometry. The L emission lines of the lanthanides were excited with the 22.1 keV Ag K radiation from an annular Cd-109 radioisotope source. The problem of the extensive overlap of the L lines were solved by the AXIL program for deconvolution of XRF spectra. Individual REs were quantified by preparing semi-transparent pellets of the concentrate with starch which served as dilutant and binder. This allowed correction for sample absorption with the light matrix program of the QXAS analysis package based on the fundamental parameter method. The method allowed the simultaneous determination of 12 rare earths contained in the sample, with a reproducibility of 2.0-29% and accuracy in the range 1.5-24% relative error without the use of standard materials. Detection limits achieved were in the range of 340 ppm for the heavy REs and 4000 ppm for the light REs.

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/xrs.1300220508

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

9

Digitale Medien

Detection of high mass-to-charge ions by Fourier transform mass spectrometry (1994)

Holliman, Christopher L. ; Rempel, Don L. ; Gross, Michael L.

New York, NY [u.a.] : Wiley-Blackwell

Mass Spectrometry Reviews 13 (1994), S. 105-132

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0277-7037

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Physik

Zusätzliches Material: 29 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/mas.1280130202

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

10

Digitale Medien

Skeletal vibrational spectra of LAuCl3 complexes with heterocyclic nitrogen donors (1993)

Shamir, J. ; Givan, A. ; Canovese, L. ; [weitere]

Chichester [u.a.] : Wiley-Blackwell

Journal of Raman Spectroscopy 24 (1993), S. 233-235

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 0377-0486

Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Physik

Notizen: The low-frequency Raman and infrared spectra of a series of gold(III) chloride complexes of the type of LAuCl3 (where L is thiazole, oxazole and their derivatives) were studied. The skeletal gold-chlorine and the gold-ligand vibrations were assigned.

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/jrs.1250240409

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext