ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/25
    In: CRREL Report, 83-25
    Description / Table of Contents: Ice action on two cylindrical and conical structures, located side by side, was investigated in a small-scale experimental study to determine the interference on the ice forces generated during ice-structure interaction. The proximity of the two structures changes the mode of ice failure, the magnitude and direction of ice forces on the individual structure, and the dominant frequency of ice force variations. Interference effects were determined by comparing the experimental results of tests at different structure spacings.
    Type of Medium: Series available for loan
    Pages: 42 Seiten , Illustrationen
    Series Statement: CRREL Report 83-25
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental setup and procedure Results and discussion Cylindrical structures Conical structures Conclusions Literature cited Appendix A: Relationship between flexural strength and in-situ unconfined compressive strength Appendix B: Test data
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Call number: ZSP-201-83/32
    In: CRREL Report, 83-32
    Description / Table of Contents: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
    Type of Medium: Series available for loan
    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1437-8213
    Keywords: arctic structure ; ice load ; measurement ; model experiments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Technology
    Notes: Abstract The Molikpaq is a steel mobile arctic structure which has been used for exploration of hydrocarbon reserves on the Canadian Beaufort shelf. In early 1986, the Molikpaq experienced numerous interactions with various ice features at Amanuligak I-65. An extensive ice loads investigation program was conducted as a joint industrial project. Ishikawajima-Harima Heary Industries (IHI) has proposed a method to estimate the global ice load on an arctic structure by utilizing results from ice tank experiments. Experiments were conducted in the IHI ice model tank using a model of the Molikpaq. A comparison between the measured ice loads and the estimated ice loads was made and it was found to be in fair agreement, in spite of some uncertainties involved in both the measured and the estimated ice loads. In this paper, instrumentation which the Molikpaq employed in the investigation program is briefly introduced. Failure modes of ice features observed in the program are also mentioned. The basic idea behind the dual parameters testing and estimating method (DuPTEM) is described. The model experiments and the results are then outlined. The comparison between the measured and estimated ice loads is shown. Finally, uncertainties in both the estimated and the measured ice loads are discussed.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2015-12-02
    Description: We studied the lattice constants, surface-phonon dispersion curves, spectral densities, and displacement vectors of the hydrogen-terminated Si(110)-(1 × 1) [H:Si(110)-(1 × 1)] surface using the first-principles calculations within the framework of density functional theory (DFT). The symmetry of the H:Si(110)-(1 × 1) surface belongs to the two-dimensional space group p 2 mg , which has two highly symmetric and orthogonal directions, Γ X ¯ and Γ X ′ ¯ , with the glide planes along the Γ X ¯ direction. Because glide symmetry separates the even and odd surface phonon modes, we mapped the even surface modes in the first surface Brillouin zone (SBZ) and the odd surface modes in the second SBZ using the spectral densities and displacement vectors. The surface phonon modes were analyzed with respect to their physical origin, spatial localization properties, polarization, and the charge density of their electronic states. Our calculated surface phonon modes were in good agreement with recent high-resolution electron-energy-loss spectroscopy data in the first and second SBZs of the Γ X ¯ direction. In the SBZ of the Γ X ′ ¯ direction, our calculated surface phonon modes agree well with the data in the energy region below 65 meV but are not satisfactorily compatible with those in the stretching and bending modes. In addition, we discuss the microscopic nature of the surface phonon dispersion of the H:Si(110)-(1 × 1) surface using the phonon eigen modes.
    Print ISSN: 0021-9606
    Electronic ISSN: 1089-7690
    Topics: Chemistry and Pharmacology , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2015-07-09
    Description: Derivatives of tris-fused TTF extended with two ethanediylidenes ( 5 ), tris- and pentakis-fused TTFs extended with two thiophene-2,5-diylidenes ( 6 – 9 ) were successfully synthesized. Cyclic voltammograms of the tetrakis( n -hexylthio) derivative of 5 and 7 ( 5d , 7d ) consisted of two pairs of two-electron redox waves and two pairs of one-electron redox waves. On the other hand, four pairs of two-electron redox waves and two pairs of one-electron redox waves were observed for the tetrakis( n -hexylthio) derivative of 9 ( 9d ). Coin-type cells using the bis(ethylenedithio) derivatives of 5 ( 5b ), 6 ( 6b ) and the tetrakis(methylthio) derivatives of 5 ( 5c ) and 8 ( 8c ) as positive electrode materials showed initial discharge capacities of 157–190 mAh g −1 and initial energy densities of 535–680 mAh g −1 . The discharge capacities after 40 cycles were 64–86% of the initial discharge capacities. Beilstein J. Org. Chem. 2015, 11, 1136–1147. doi:10.3762/bjoc.11.128
    Keywords: cyclic voltammetrypositive electrode materialsrechargeable batteryredoxtetrathiafulvalene
    Electronic ISSN: 1860-5397
    Topics: Chemistry and Pharmacology
    Published by Beilstein-Institut
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...