Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Unbekannt
    The piezojunction effect in silicon integrated circuits and sensors (2002)
    Boston : Kluwer Academic Publishers
    The Kluwer international series in engineering and computer science  
    Details
    Schlagwort(e): Detectors. ; Integrated circuits. ; Piezoelectric devices.
    Seiten: xii, 161 p.
    ISBN: 0-306-48210-X
    URL: http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=99503
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    E-Book (Nationallizenzen)
  • 2
    Unbekannt
    The alloy tree : a guide to low-alloy steels, stainless steels and nickel-base alloys (2004)
    Boca Raton : CRC Press
    Details
    Schlagwort(e): Nickel alloys. ; Steel alloys. ; Steel, Stainless.
    ISBN: 1-85573-992-5
    URL: http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=114157
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    E-Book (Nationallizenzen)
  • 3
    Digitale Medien
    Digitale Medien
    Plasma-grooved, buried contact silicon solar cells (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 4135-4136 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Solar cells with less than 1% front-surface metal shading loss have been made with a deep-grooving hollow cathode dry etching process. Compared with standard laser-grooved cells, a 4% relative increase in short-circuit current density has been demonstrated. Open-circuit voltages of over 640 mV (air mass 1.5, 25 °C), a fill factor of almost 79%, and the application of an antireflection coating have resulted in a one-sun efficiency of 19.2%. This is one of the highest efficiencies yet reported for a cleaved 4 cm2 silicon solar cell.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.348429
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Fast curve fitting using neural networks (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 4450-4456 
    Details
    ISSN: 1089-7623
    Quelle: AIP Digital Archive
    Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Neural networks provide a new tool for the fast solution of repetitive nonlinear curve fitting problems. In this article we introduce the concept of a neural network, and we show how such networks can be used for fitting functional forms to experimental data. The neural network algorithm is typically much faster than conventional iterative approaches. In addition, further substantial improvements in speed can be obtained by using special purpose hardware implementations of the network, thus making the technique suitable for use in fast real-time applications. The basic concepts are illustrated using a simple example from fusion research, involving the determination of spectral line parameters from measurements of B iv impurity radiation in the COMPASS-C tokamak.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1143696
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Formation of cationic silicon clusters in a remote silane plasma and their contribution to hydrogenated amorphous silicon film growth (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 4029-4039 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The formation of cationic silicon clusters SinHm+ by means of ion–molecule reactions in a remote Ar–H2–SiH4 plasma is studied by a combination of ion mass spectrometry and Langmuir probe measurements. The plasma, used for high growth rate deposition of hydrogenated amorphous silicon (a-Si:H), is based on SiH4 dissociation in a downstream region by a thermal plasma source created Ar–H2 plasma. The electron temperature, ion fluence, and most abundant ion emanating from this plasma source are studied as a function of H2 admixture in the source. The electron temperature obtained is in the range of 0.1–0.3 eV and is too low for electron induced ionization. The formation of silicon containing ions is therefore determined by charge transfer reactions between ions emanating from the plasma source and SiH4. While the ion fluence from the source decreases by about a factor of 40 when a considerable flow of H2 is admixed in the source, the flux of cationic silicon clusters towards the substrate depends only slightly on this H2 flow. This implies a strong dissociative recombination of silicon containing ions with electrons in the downstream region for low H2 flows and it causes the distribution of the cationic silicon clusters with respect to the silicon atoms present in the clusters to be rather independent of H2 admixture. The average cluster size increases, however, strongly with the SiH4 flow for constant plasma source properties. Moreover, it leads to a decrease of the ion beam radius and due to this, to an increase of the ion flux towards the substrate, which is positioned in the center of the beam. Assuming unity sticking probability the contribution of the cationic clusters to the total growth flux of the material is about 6% for the condition in which solar grade a-Si:H is deposited. Although the energy flux towards the film by ion bombardment is limited due to the low electron temperature, the clusters have a very compact structure and very low hydrogen content and can consequently have a considerable impact on film quality. The latter is discussed as well as possible implications for other (remote) SiH4 plasmas. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.371324
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Localized morphoea preceded by a pigmented purpuric dermatosis (2003)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 28 (2003), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Summary Localized morphoea uncommonly occurs in a linear distribution and may present following trauma, although most cases are idiopathic. Pigmented purpuric dermatoses such as lichen aureus may also rarely occur in a linear distribution and have been associated with trauma. A middle-aged man is described who initially presented with lesions typical of lichen aureus in a linear distribution at a site exposed to chronic low-grade trauma. This eruption was transient and clinically underwent spontaneous complete resolution. Several months later he developed localized morphoea in an identical distribution. To our knowledge this is the first reported case of a pigmented purpuric dermatosis, presumably precipitated by trauma, evolving into linear morphoea.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2230.2003.01297.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Etanercept-induced systemic lupus erythematosus (2003)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 28 (2003), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Tumour necrosis factor (TNF) is a pro-inflammatory cytokine with a role in the pathogenesis of a number of conditions including rheumatoid arthritis, psoriasis, psoriatic arthritis, ankylosing spondylitis and Crohn's disease. Etanercept (Enbrel®; Immunex Corp., Seattle, WA, USA) is a recombinant soluble fusion protein of TNF-α type II receptor and IgG which acts by blocking the action of TNF-α. It is licensed for use in rheumatoid arthritis and juvenile chronic arthritis. A number of studies report the development of antinuclear and anti-double-stranded DNA antibodies in patients treated with TNF antagonists for rheumatoid arthritis. There are few reports of the development of clinical features of discoid, subacute or systemic lupus erythematosus. We present one of the first reported cases of etenercept-induced systemic lupus erythematosus and review the literature of lupus and TNF antagonists.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2230.2003.01411.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    The magnetic and structural properties of pulsed laser deposited epitaxial MnZn–ferrite films (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 1676-1680 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The magnetic and structural properties of pulsed laser deposited MnZn–ferrite films have been examined. The results show that the uniaxial anisotropy, ferromagnetic resonance linewidth and coercive force are strongly influenced by the microstructure of the films, and the saturation magnetization and first-order magnetocrystalline anisotropy constant depend on intrinsic properties such as composition and cation site occupation. A comparison of bulk and film magnetic properties shows that the magnetic properties of the films are comparable to the bulk, which makes pulsed laser deposition ferrite films a prime candidate for thin film high-frequency microwave device applications.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.356353
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Idiopathic thrombocytopenic purpura in pregnancy: A randomized trial on the effect of antenatal low dose corticosteroids on neonatal platelet count (1990)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 97 (1990), S. 0 
    Details
    ISSN: 1471-0528
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Objective–To determine the efficacy of antenatal low dose oral betamethasone in preventing neonatal thrombocytopenia and/or bleeding in infants of mothers with idiopathic thrombocytopenic purpura (ITP). Setting–Hospital department of obstetrics and gynaecology, referral centre. Patients–41 pregnancies in 38 women were randomized. The results of 13 pregnancies were considered non-assessable. The final analysis involved 14 in the betamethasone group and 14 in the non-treatment group. All fulfilled the criteria for ITP. Interventions–The treated group received 1.5 mg betamethasone orally per day, from day 259 till day 273 and 1 mg from day 273 till delivery. Main outcome measures–Effects of treatment were assessed in terms of maternal platelet counts after the first trimester and neonatal platelet counts at birth and the first week of life and neonatal bleeding episodes. Results–There were no significant differences in neonatal platelet counts at birth. Two infants in the belamethasone group and one in the untreated group had a severe thrombocytopenia either at birth or during the first week of life (〈50 × 109/1). Seven infants in the betamethasone group and six in the nontreatment group had a mild thrombocytopenia. The overall frequency of neonatal thrombocytopenia was similar: 64% in the betamethasone group and 57% in the untreated group (95% CI of the true difference: –43.5% to +29.5%). There was also no significant difference in neonatal bleeding episodes. Conclusions–Low-dose betamethasone in pregnant women with TTP does not prevent thrombocytopenia or bleeding in their newborn infants.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1471-0528.1990.tb02443.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Low-cost all-polymer integrated circuits (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 108-110 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: A technology has been developed to make all polymer integrated circuits. It involves reproducible fabrication of field-effect transistors in which the semiconducting, conducting and insulating parts are all made of polymers. The fabrication on flexible substrates uses spin-coating of electrically active precursors and patternwise exposure of the deposited films. In the whole process stack integrity is maintained. Vertical interconnects are made mechanically. As a demonstrator functional 15-bit programmable code generators are fabricated. These circuits still operate when the foils are sharply bent. Due to the limited number of process steps the technology is potentially inexpensive. © 1998 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.121783
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...