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  • 1
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    In:  CASI
    Publication Date: 2013-08-31
    Description: A digital resampling technique for LANDSAT data is reported that incorporates a deconvolution concept to minimize spatial and radiometric degradation of data during resampling for geometric correction. A quantitative comparison of cubic convolution and digital restoration methods establishes the latter as the superior technique.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: BSR-4246 , NASA-CR-156790
    Format: application/pdf
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  • 2
    Publication Date: 2011-08-16
    Description: Multispectral scanner and data system with 24 channels for NASA C-130 earth resources survey aircraft
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; 121- 147. (
    Format: text
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  • 3
    Publication Date: 2011-08-18
    Description: "Hands-on" training in LANDSAT data analysis techniques can be obtained using a desk-top, interactive remote analysis station (RAS) which consists of a color CRT imagery display, with alphanumeric overwrite and keyboard, as well as a cursor controller and modem. This portable station can communicate via modem and dial-up telephone with a host computer at 1200 baud or it can be hardwired to a host computer at 9600 baud. A Z80 microcomputer controls the display refresh memory and remote station processing. LANDSAT data is displayed as three-band false-color imagery, one-band color-sliced imagery, or color-coded processed imagery. Although the display memory routinely operates at 256 x 256 picture elements, a display resolution of 128 x 128 can be selected to fill the display faster. In the false color mode the computer packs the data into one 8-bit character. When the host is not sending pictorial information the characters sent are in ordinary ASCII code. System capabilities are described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Purdue Univ. CORSE-81: The 1981 Conf. on Remote Sensing Educ.; p 269-275
    Format: text
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  • 4
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. LANDSAT was used as a basis for inventorying land use within each of the Ohio-Kentucky-Indiana regional commissions, 225 drainage areas, and nine counties. Computer tabulations were produced to obtain the area covered by each of 16 land use categories within 225 drainage areas. The 16 categories were merged into ten categories and mapped at a scale of 1 inch = 5,000 ft, with detail to 0.44 hectares for the 2,700 sq mi region. These products were produced in less than 90 days, at a cost of $20,000.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E75-10322 , NASA-CR-142924 , BSR-4183 , Symp. on Machine Processing of Remotely Sensed Data; Jun. 1975; Lafayette, IN; United States
    Format: application/pdf
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  • 5
    Publication Date: 2019-08-13
    Description: Chronic exposure to JP-8 and other kerosene-based petroleum distillates has been associated with hepatic, renal, neurologic, pulmonary, and immune toxicity. However, the effects of kerosene-type jet fuels on cellular homeostasis hitherto have not been reported. Fluorescence imaging using a Meridian Ultima laser scanning fluorescence microscope was used to evaluate the effect of JP-8 jet fuel on a communication competent rat liver cell line. Several endpoints of cellular function were measured including gap junctional intercellular communication (GJIC), mitochondrial and plasma membrane potential (MMP and PMP, respectively), intracellular glutathione (GSH) concentration, glutathione-S-transferase (GST) activity, and reactive oxygen species (ROS) generation. Cells were treated with JP-8 (0.01 to 2% in ethanol (EtOH)) for the following time points: 1 h, 24 h, 48 h, and analysis immediately after addition of jet fuel. GJIC analyzed directly after addition of 1% JP-8 was reduced 4.9-fold relative to EtOH-dosed control groups and further reduction (12.6-fold) was observed in cells treated for 1 h. Moreover, GJIC was not recoverable in cells treated with 1% JP-8 for 1 h and subsequently washed and incubated in fresh medium for 1 h. Significant changes in GSH content and GST activity were observed in cells analyzed directly after addition of 1% JP-8. GSH content increased in cells treated for 1 h with less than 2% JP-8 whereas treatment with 2% JP-8 for 1 h resulted in a 50% reduction in intracellular GSH relative to EtOH-dosed controls. Cells treated with 1% JP-8 for 48 h exhibited changes in GSH levels. However, higher JP-8 concentrations exhibited more pronounced changes in GSH and GST, which led to suppression of GSH synthesis. ROS increased in a dose-responsive fashion at JP-8 concentrations up to 1%, but decreased to 80% of control values at 2% and 3% JP-8. A 25% reduction in PMP was observed in cells treated for 1 h with 1% JP-8. In contrast, cells treated for 48 h with 2% JP-8 exhibited a 25% increase when compared to control. No significant changes were noted in the 0.01 and 1% treatment groups. Moreover, no significant changes were observed in MMP or intracellular calcium concentrations in cells treated with 0.01 to 2% JP-8 for up to 48 h. In summary, the most significant effects observed in the present study which may contribute to the toxicity of JP-8 jet fuel in cultured rat liver cells include effects on GJIC, ROS production, and GSH depletion at high (i.e., greater than 2%) JP-8 concentrations.
    Keywords: Life Sciences (General)
    Type: JANNAF 18th Safety and Environmental Protection Subcommittee Meeting; 123-129; CPIA-Publ-698|Safety and Environmental Protection; May 08, 2000 - May 12, 2000; Cocoa Beach, FL; United States
    Format: text
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  • 6
    Publication Date: 2015-03-06
    Description: The disordered-molecular-alloy phase (DMA) of ammonia hydrates [J. S. Loveday and R. J. Nelmes, Phys. Rev. Lett. 83 , 4329 (1999)] is unique in that it has substitutional disorder of ammonia and water over the molecular sites of a body centred cubic lattice. Whilst this structure has been observed in ammonia di- and mono-hydrate compositions, it has not been conclusively observed in the ammonia hemihydrate system. This work presents investigations of the structural behaviour of ammonia hemihydrate as a function of P and T. The indications of earlier studies [Ma et al. RSC Adv. 2 , 4290 (2012)] that the DMA structure could be produced by compression of ammonia hemihydrate above 20 GPa at ambient temperature are confirmed. In addition, the DMA structure was found to form reversibly both from the melt, and on warming of ammonia hemihydrate phase-II, in the pressure range between 4 and 8 GPa. The route used to make the DMA structure from ammonia mono- and di-hydrates—compression at 170 K to 6 GPa followed by warming to ambient temperature—was found not to produce the DMA structure for ammonia hemihydrate. These results provide the first strong evidence that DMA is a thermodynamically stable form. A high-pressure phase diagram for ammonia hemihydrate is proposed which has importance for planetary modelling.
    Print ISSN: 0021-9606
    Electronic ISSN: 1089-7690
    Topics: Chemistry and Pharmacology , Physics
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  • 7
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Hexacyanoferrat(II), Hexacyanoferrat(III) und Hexacyanocobaltat(III) lassen sich in Gemischen nach der vonLeonard, Shahine undWilson angegebenen Schlitzofentechnik quantitativ bestimmen. Die Trennung erfolgt durch selektive Fällung des Cyanoferrats(II) als Thoriumsalz auf dem Filtrierpapier. Nach dem Veraschen werden Eisen und Kobalt kolorimetrisch als Thiocyanat- bzw.β-Nitroso-α-naphthol-Komplex bestimmt.
    Abstract: Résumé On a dosé quantitativement les ferrocyanures, ferricyanures et cobalticyanures, en mélanges, par la technique du „four linéaire“ deLeonard, Shahine etWilson. La séparation est fondée sur la précipitation sélective, sur papier filtre, du ferrocyanure à l'état de sel de thorium. Après calcination, on dose le fer et le cobalt par colorimétrie, respectivement à l'état de complexes au thiocyanate et auβ-nitrosoα-naphtol.
    Notes: Summary Hexaoyanoferrate(II), hexacyanoferrate(III) and hexacyanocobaltate(III) have been quantitatively determined in admixture using the “line oven” technique ofLeonard, Shahine, andWilson. Separation is based on selective precipitation, on filter paper, of hexacyanoferrate(II) as the thorium salt. Following ashing, iron and cobalt are determined colorimetrically as the thiocyanate and 2-nitroso-1-naphthol complexes respectively.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract High amplitude third sound waves are observed to create and to destroy persistent flow states within a circular resonator. These changes are necessarily a result modifying the underlying distribution of pinned vortices responsible for the flow. At low temperatures, large oscillatory flows associated with the third sound wave agitation are required to both increase and decrease the flow. At higher temperatures, thermally assisted de-pinning enhances the destructive aspects of lower amplitude third sound agitation. The constructive, or swirling tendency of the third sound agitation is also enhanced, but only in the presence of the wave excitation. At the higher temperatures, the ability of the induced flow to be trapped as a persistent current is diminished.
    Type of Medium: Electronic Resource
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  • 9
    Publication Date: 1999-10-01
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1963-01-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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