Displacement Monitoring Articles

  • Extension of a tramway in Nice, France - 3D dynamic calculations - Case Study

    Project Description FLAC3D models are conducted with the aim to simulate the response of underground tramway structures in Nice, France, under earthquake loading. Three geometries are studied, including a preselected station (Figure 1) and two tunnel sections. For each model geometry, three synthetic accelerograms are used to evaluate the capacity of the concrete liner. ...


    By Itasca International, Inc

  • Crispr and the Editing of Genes: To Help Revolutionize Biomedical Science

    Scientists from MIT and Harvard University are placing their faith in a gene editing tool that may revolutionize the treatment of deadly diseases. CRISPR, which stands for Clustered Regularly Interspaced Short Palindromic Repeats, has the potential to unlock the next generation of treatments for conditions like cancer, ALS, or Alzheimer's. Learn how CRISPR is poised ...

  • Oxygen detection in manufacturing of precious and non-precious metal coins - Case Study

    Oxygen detection in heat treating/annealing furnace atmosphere in manufacturing of precious and non-precious metal coins Sunshine Minting use the Systech Illinois EC913 process oxygen analyzer to monitor the oxygen in their heat treating/annealing furnace attmosphere. Based in Idaho, U.S.A., Sunshine Minting Inc. (SMI) is a leading supplier of precious metal and base metal mint products. ...

  • Keeping Healthcare/SPD Workers Safe from Exposure: 2 Very Different Options

    Continuous Monitoring vs. Badges Badges are designed to provide the Time Weighted Average (TWA) data for the total exposure period. They contain an absorption medium that reacts with or absorbs and holds the target chemical from the air to be analyzed later, which indicates the exposure after the fact. Badges, sample tubes, and wet chemical methods were the predominant technologies for monitoring ...


    By ChemDAQ, Inc.

  • Joint action on climate change: Key resources

    Who’s linking climate change, development, and disaster reduction? Ilan Kelman rounds up vital sources and voices. Many useful and mainly free online resources reflect the links amongst climate change, development and disaster risk reduction — the following are some key organisations and documents. Focus on climate change ...


    By SciDev.Net

  • Experimental investigation of heavy oil recovery by continuous/WAG injection of CO
    2
    saturated with silica nanoparticles

    In this work, application of CO2 saturated with silica nanoparticles in continuous/water alternating gas (WAG) injection for heavy oil recovery was investigated which has been rarely attended in the available literature. Core displacement tests were conducted to monitor heavy oil recovery in both continuous and WAG injection schemes. It has been observed that for continuous ...


    By Inderscience Publishers

  • Helium and MRI Rooms Around the World

    Helium gas is something most people feel fairly familiar with.  Children are enthralled with the magical beauty of a floating balloon, watching it reach toward the sky and hoping not to lose their grip on the string.  Helium feels safe, and while people surround themselves with flying wonders filled with this lightweight gas, the real magic of helium is taking ...

  • Comparing the impact of time displaced and biased precipitation estimates for online updated urban runoff models

    When an online runoff model is updated from system measurements, the requirements of the precipitation input change. Using rain gauge data as precipitation input there will be a displacement between the time when the rain hits the gauge and the time where the rain hits the actual catchment, due to the time it takes for the rain cell to travel from the rain gauge to the catchment. Since this time ...


    By IWA Publishing

  • Numerical analyses of the hangingwall failure due to sublevel caving: study case

    The sublevel caving used in Kiirunavaara mine induces failure and subsidence of the hangingwall. Two sections of the mine were studied by means of numerical analyses. Numerical models were developed using finite element and discrete element codes. The former was applied to calculate the location of new failure surfaces in the hangingwall and to estimate the break angle when mining advances ...


    By Inderscience Publishers

  • The beverage industry`s incorrect way of monitoring for CO2 leaks

    Carbon Dioxide (CO2) is the primary compressed gas used for beverages at major fast food chains. This gas is also used in restaurants, gas stations, and grocery stores. When CO2 leaks into a confined space or basement, this creates a very unsafe workplace for employees by lowering the breathable oxygen. History seems to repeat itself all too often while dealing with CO2. Due to the CO2 leaks ...

  • Rainstore3 insitu testing results

    From 10 February to 17 February 2000 Invisible Structures Inc. (ISI) and Advanced Terra Testing, Inc. (ATT) conducted insitu testing on the Rainstore3 product produced by ISI. ISI excavated the test hole, installed the product per their specifications, and supplied and operated the loading vehicles. ATT installed the load cells and displacement transducers, organized the testing parameters, ...


    By Invisible Structures, Inc.

  • Soil-Geogrid Reinforcement Interaction by Pullout and Direct Shear Tests

    Pullout and direct shear tests have been conducted to investigate the soil-reinforcement interaction behavior in pullout and direct shear mechanisms. An apparatus—discussed in this paper—has been developed that is capable of performing both pullout and direct shear tests. Displacement measurements to monitor dilatancy on the backfill soil during pullout tests are incorporated in the apparatus. ...


    By ASTM International

  • A Multiple Purpose Soil Testing Apparatus

    A relatively compact soil testing system that is capable of performing monotonic/cyclic triaxial and torsional simple shear tests has been developed. A high-torque direct-drive, servo/stepper motor is used to provide the driving force. Under the servo mode, the motor could be controlled to provide a constant torque, which is used in stress-controlled tests. Strain-controlled tests are conducted ...


    By ASTM International

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