ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Last 14 Days Catalog Additions

Export
  • 1
    Call number: ZSP-201-95/14
    In: CRREL Report, 95-14
    Description / Table of Contents: Current protocols for decontaminating devices used to sample groundwater for organic contaminants are re­viewed. Most of the methods given by regulatory agencies provide little scientific evidence that justify the recommended protocols. In addition, only a few studies that actually compared various decontamination proto­cols could be found in the open literature, and those studies were limited in their scope. Various approaches for decontamination and criteria that are important in determining how effectively a surface could be decontami­nated are discussed.
    Type of Medium: Series available for loan
    Pages: iii, 15 Seiten , Illustrationen
    Series Statement: CRREL Report 95-14
    Language: English
    Note: CONTENTS Preface Introduction Sorption and desorption of organic contaminants Decontamination methods Aqueous cleaning methods Cleaning or rinsing with organic solvents Chemical neutralization methods Current protocols to decontaminate groundwater sampling devices Variations in methodology Special instructions for cleaning pumps Effectiveness of various decontamination methods Low-temperature considerations Conclusions Literature cited
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-95/11
    In: CRREL Report, 95-11
    Description / Table of Contents: A pavement joint seal prevents the passage of liquids into the pavement base and the intrusion of solids into the joint. The primary mechanical requirements of a pavement seal are that it respond elastically or viscoelastically to any movement of the joint without failure and that it withstand indentation of hard objects like rocks. Because pavement joint movements and seal deformations can be large, elastomeric sealants are often used to form seals. Winter conditions are recognized as the most critical for a seal because of the possibility that failure stresses will be reached as the joint opens to a maximum and the material stiffens in response to the temperature reduction. This report reviews the specific problems and requirements that cold climates create for the performance of elastomeric seals. Emphasis is placed on the material response behavior that can lead to failure of a seal. In an attempt to clarity the mechanics of sealant and seal performance associated with low-temperature pavement applications and to address the issue of low-temperature stiffening That should be a dominant factor in the selection of a sealant, this report presents background information on the formulation and mechanical properties of elastomeric seal materials and the structural behavior of field-molded joint and crack seals.
    Type of Medium: Series available for loan
    Pages: iv, 20 Seiten , Illustrationen
    Series Statement: CRREL Report 95-11
    Language: English
    Note: CONTENTS Page Preface Introduction Elastomers and sealant formulations Mechanical behavior of sealants Phenomenological behavior of rubbers and elastomers Hyperelastic constitutive model Examples of sealant behavior Mechanical response of seals Basic structural geometry and loading configurations of seals Conventional performance testing for studying the load and deformation response of joint and crack seals Response of seals to joint movements Summary and recommendations Literature cited Abstract
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-95/7
    In: CRREL Report, 95-07
    Description / Table of Contents: Before vehicle mobility in snow can be reliably predicted, a complete understanding of motion resistance in snow is required. This report examines several aspects of wheeled vehicle motion resistance using results obtained with the CRREL instrumented vehicle. Resistances of leading and trailing tires are examined. Limited data are presented for undercarriage drag, and third and fourth wheel passes in the same rut are initially analyzed, as is how snow deforms around a wheel. For the CRREL instrumented vehicle, a trailing tire has a resistance coefficient of about 0.017 for snow depths less than about 22cm. For deeper snow, the disruption of the snowpack caused by a preceding wheel causes snow to fall into the rut, resulting in higher trailing tire coefficients. For larger vehicles, which in some cases have trailing tires carrying larger loads than preceding tires, the trailing tire coefficients are on the order of 0.048 and 0.025 for second and third trailing wheels respectively. Since there are no trailing tire data available for these larger vehicles, these values are based on nonlinear regression analysis, which includes a prediction of the leading tire resistance. The results and observations of this study are applied in a reanalysis of the towed resistance data obtained during the U.S. Army's Wheels vs. Tracks study. An improved algorithm is presented for predicting wheeled vehicle motion resistance caused by snow.
    Type of Medium: Series available for loan
    Pages: v, 39 Seiten , Illustrationen
    Series Statement: CRREL Report 95-07
    Language: English
    Note: CONTENTS Page Preface Nomenclature Introduction Experimental procedure Results and analysis Leading tire resistance Trailing tire resistance Deep snow Undercarriage drag Multiple passes Shallow snow resistance model Summary Literature cited Appendix A: Snow data Appendix B: Observations of snow deformation by a wheel Appendix C: Wheeled vehicle motion resistance data Abstract
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-95/1
    In: CRREL Report, 95-1
    Description / Table of Contents: This report annotates the cold regions mobility prediction routines included in the CAMMS/ALBE mobility models. It further explains the development of the algorithms that are used in these models to describe the interaction of a vehicle with terrain that has been affected by cold weather. The following terrain conditions are discussed: undisturbed snow (shallow and deep); disturbed snow (moderately trafficked and hard packed); ice; and thawing soils. Several combinations of substrates are also considered. A stand-alone computer model is included.
    Type of Medium: Series available for loan
    Pages: v, 72 Seiten , Illustrationen
    Series Statement: CRREL Report 95-1
    Language: English
    Note: CONTENTS Page Preface Nomenclature Introduction Background Shallow snow Undisturbed snow on a firm substrate Undisturbed snow on a soft substrate Undisturbed snow over ice Disturbed, processed and packed snow Deep snow Ice Freezing or thawing ground conditions Bearing capacity of freezing ground Effect of thawing conditions on vehicle performance Speed made good Internal motion resistance Slopes Summary and recornmendations Literature cited Appendix A: Cold Regions Mobility Model CRM-1.F Appendix B: FORTRAN code using NRMM/CAMMS variables and format Appendix C: Traction coefficients on packed snow Appendix D: NRMM checkout data Abstract
    Location: AWI Archive
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Monograph available for loan
    Monograph available for loan
    Opladen : Westdeutscher Verlag GmbH
    Call number: IASS 19.92904
    Type of Medium: Monograph available for loan
    Pages: 580 Seiten , graphische Darstellungen
    ISBN: 3531127047
    Language: Undetermined
    Branch Library: IASS Library
    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...