ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • SPACE RADIATION  (11)
  • Polymer and Materials Science  (4)
  • 07.75.+h  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Production and identification of new neutron-rich fragments from 33 MeV/u86Kr beam in the 18≦Z≦27 region (1985)
    Springer
    The European physical journal 322 (1985), S. 415-418 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.−k ; 07.75.+h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The new nuclei47Ar,57Ti,59,60V,61,62Cr,64,65Mn,66,67,68Fe,68,69,70Co haye been produced by fragmentation of a86Kr beam and identified through time of flight andΔE×E measurements. The tentative observation of56Ti,57,58V,60Cr and65Fe by other groups is confirmed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412075
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Total cross sections of reactions induced by neutron-rich light nuclei (1989)
    Springer
    The European physical journal 332 (1989), S. 457-465 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.-k ; 07.75.+h ; 21.10.Gv ; 25.70.Np ; 27.20.+n
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Total nuclear reaction cross-sections are determined by means of a 4π-γ method. The results cover a wide span of targets for various stable beams. The validity of the method is shown in a combined systematics including also the results of transmission-type experiments. The data are very well described by the formula developed by Kox et al. The same method is applied to secondary fragment beams produced from a 44 MeV/u22Ne beam on a 332mg/cm2 181Ta target. Using the LISE spectrometer the fragments4, 6He,6–9, 11Li,7, 9–12, 14Be,10–15, 17B11–19C,13–19N,15–21O,18– 21F and20,21 Ne are analyzed and transported to interact with a 199.4 mg/cm2 Cu target surrounded by a 4π-γ counter. The measured total reaction cross-sectionsσ R are discussed in terms of the reduced strong absorption radiusr 0 and compared with other experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01292431
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Zur Korrosion verzinkter Eisenwerkstoffe durch natürliche Brauchwässer (1973)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 24 (1973), S. 282-286 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion of galvanized ferrous materials by natural watersLaboratory and field test with galvanized irons do not reveal clear interrelations between water quality and corrosion. Likewise it is not possible on the basis of potential measurements to make any statement with respect to the formation of protective layers. It is for this reason that some doubt may be expressed as to the applicability of the test method according to DIN 50 930, the more so as the formation of ZnCO3 could be shown to take place in some few cases only.
    Notes: Laboratoriums- und Feldversuche mit verzinktem Eisen zeigen keine eindeutigen Zusammenhänge zwischen Wasserbeschaffenheit und Korrosion. Ebenso ist es nicht möglich, aufgrund von Potentialmessungen Aussagen über die Schutzschichtbildung zu machen. Aus diesem Grunde kann auch die Anwendbarkeit der Untersuchungsmethode nach DIN 50 930 in Zweifel gezogen werden, zumal nur in Einzelfällen die Bildung von ZrCO3 eindeutig nachgewiesen werden konnte.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19730240405
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    A conductometric detector for capillary separations (1996)
    Weinheim : Wiley-Blackwell
    Electroanalysis 8 (1996), S. 722-725 
    Details
    ISSN: 1040-0397
    Keywords: Conductometry ; Detection ; Capillary electrophoresis ; Capillary HPLC ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A simple electrochemical cell has been constructed for conductometric detection in capillary electrophoresis or HPLC. A platinum ring electrode is chemically deposited at the capillary end and the other electrode, a platinum wire, is immersed, together with the capillary, in a vessel containing the running buffer or the mobile phase used. The cell has been tested on a model system and its operational parameters have been discussed. The measurement is very sensitive (a limit of determination of ca. 3 × 10-9 M for potassium ions) and the detector response is rapid, comparable with that of the UV photometric detector. The dynamic range is wide (at least five concentration decades) but is nonlinear at high concentrations.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elan.1140080804
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Zur Bildung von gewinkelten Leiterpolymeren in Polyacrylnitril-FasernHerrn Professor Dr. FRANZ PATAT zum 65. Geburtstag gewidmet (1971)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 144 (1971), S. 117-133 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The process of cyclization of copolymer-free polyacrylonitrile (PAN) at thermal treatment between 200 and 300°C in air is studied by measuring the elongation-shrinkage behaviour of polymer fibres under tensile stress. It was found that solely the shrinkage which occurs above 235°C is caused chemically, whilst the fibres are stretched by plastic deformation up to 235°C. The shrinkage above 235°C is explained as a consequence of cyclization reactions of PAN leading to polymers with angled partial ladder structure. The maximum shrinkage of about 25%, obtained experimentally without tensile stress, is in agreement with conclusions drawn on molecular models. These models are based on differing ratios of inter- and intramolecular addition reactions between the nitrile groups of PAN. The remaining elongation attainable after thermal treatment up to 300°C is determined by the reaction conditions until cyclization sets in, and was increased up to 40% using endless copolymer-free PAN fibres.
    Notes: Der Verlauf der Cyclisierung von copolymerfreiem Polyacrylnitril (PAN) bei thermischer Behandlung zwischen 200 und 300°C an Luft wird durch Messung des Dehnungs-Schrumpfungs-Verhaltens von Polymerfäden unter Zugbeanspruchung studiert. Es wurde gefunden, daß nur die oberhalb 235°C eintretende Schrumpfung chemisch bedingt ist, während die Fasern bis 235°C durch plastische Verformung gedehnt werden. Die Schrumpfung oberhalb 235°C wird als eine Folge der Cyclisierungsreaktionen des PAN zu Polymeren mit gewinkelter partieller Leiterstruktur erklärt. Die experimentell ohne Zugbeanspruchung gefundene maximale Schrumpfung von ca. 25% steht in übereinstimmung mit überlegungen an Molekülmodellen, bei denen unterschiedliche Verhältnisse von inter- und intramolekularen Additionsreaktionen zwischen den Nitrilgruppen zugrunde gelegt werden. Die erreichbare bleibende Dehnung nach der thermischen Behandlung bis oberhalb 300°C wird von den Reaktionsbedingungen bis zur einsetzenden Cyclisierung bestimmt und konnte an endlosen copolymerfreien PAN-Fäden bis zu 40% gesteigert werden.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1971.021440110
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Rapid Methods for Quality Control of Gun Propellants (1982)
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 7 (1982), S. 53-57 
    Details
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Several single-base, double-base, and triple-base gun propellants were analyzed by three different methods: Conventional analytical methods (TL 1376-600)High-pressure liquid chromatography (HPLC)Derivative spectroscopy.The results obtained by these methods agree well and show a good reproducibility. However, compared with each other, the chromatographic methods are not only more rapid and more flexible than the conventional wet chemical analysis, they enable a quantitative determination of blasting oil mixtures like nitroglycerin or diglycoldinitrate. The same holds for many other explosives, stabilizers and stabilizer reaction products.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prep.19820070206
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    facet.materialart.
    Unknown
    The development of a high energy cosmic ray detector for Spacelab-2 (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A large cosmic ray detector aimed at measurements of the energy spectra and of the elemental abundances of cosmic ray nuclei at very high energies, up to several TeV/nucleon was constructed. The instrument is an electronic counter telescope with a geometric factor of 5 sq ster. It accomplishes measurements of the particle energies through the use of gas Cerenkov counters and of transition radiation detectors. The solutions of a number of technological problems that are encountered when developing such instrumentation for Shuttle missions are discussed.
    Keywords: SPACE RADIATION
    Type: OG-9.1-8 , 19th Intern. Cosmic Ray Conf - Vol. 3; p 276-277; NASA-CP-2376-VOL-3
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    An observation of cosmic ray positrons from 10-20 GeV (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A balloon flight of the University of Chicago electron telescope was performed. Making use of the east-west asymmetry in the geomagnetic cut off rigidity, the cosmic ray positrons and negatrons were separated over the range 10 GeV to 20 GeV. The positron to electron ratio, e+/(e++e-), was measured to be 17% + or - 5%, significantly higher than the ratio measured in the 1 GeV to 10 GeV range by other experiments. This increase appears to suggest that either a primary component of positrons become significant above 10 GeV, or that the spectrum of primary negatrons decreases above 10 GeV more sharply than that of secondary positrons.
    Keywords: SPACE RADIATION
    Type: OG-6.2-6 , 19th Intern. Cosmic Ray Conf - Vol. 2; p 378-381; NASA-CP-2376-VOL-2
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    High-energy cosmic-ray electrons - A new measurement using transition-radiation detectors (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A new detector for cosmic-ray electrons, consisting of a combination of a transition-radiation detector and a shower detector, has been constructed, calibrated at accelerator beams, and exposed in a balloon flight under 5 g/sq cm of atmosphere. The design of this instrument and the methods of data analysis are described. Preliminary results in the energy range 9-300 GeV are presented. The energy spectrum of electrons is found to be significantly steeper than that of protons, consistent with a long escape lifetime of cosmic rays in the galaxy.
    Keywords: SPACE RADIATION
    Type: Physical Review Letters; 38; June 6
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Composition of cosmic-ray nuclei at high energies. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: We have measured the charge composition of cosmic-ray nuclei from Li to Fe with energies up to about 100 GeV/nucleon. A balloon-borne counter telescope with gas Cherenkov counters for energy determination was used for this experiment. Our first results show that, in contrast to low-energy observations, the relative abundances change as a function of energy. We find that the ratio of the galactic secondary nuclei to primary-source nuclei decreases at energies above about 30 GeV/nucleon.
    Keywords: SPACE RADIATION
    Type: Physical Review Letters; 29; Aug. 14
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...