Penetrometers Articles

  • Characterization of pit latrines to support the design and selection of emptying tools in peri-urban Mzuzu, Malawi

    The urban areas of many low-income countries must balance a rising demand for pit latrines for household sanitation provision against limitations in space, resulting in a need for pit latrine emptying services. This study was undertaken in the peri-urban neighborhood of Area 1B in the city of Mzuzu, Malawi, to examine the characteristics of household pit latrines for designing and selecting ...


    By IWA Publishing

  • Multi-sensor inspection robot shows benefits of pipe penetrating radar - Case Study

    Pipe penetrating radar (PPR), the in-pipe application of ground penetrating radar (GPR) is one of the most promising quantitative pipe condition assessment technologies to emerge in recent years. With most of the underground pipe infrastructure reaching the end of their design life there is a need to provide measurable data in order to establish the extent of rehabilitation required or the timing ...


    By SewerVUE

  • Flood disasters – a global perspective

    Various disasters in recent decades have confirmed that the risk from water-related events has been increasing significantly worldwide. Among those events are tsunamis, storm surges, river floods, flash floods, mass movements and droughts. The driving factors of this risk are the unabated increase in global population, the concentration of people in high-risk areas such as coasts, flood plains ...


    By IWA Publishing

  • Bath Michigan Solar Installation Case Study

    Project Overview Patriot worked with Peninsula Solar to design a racking system that would work with limited space and not penetrate the ground surface. The ground mount array utilized a non-penetrating ballasted design to work with the existing terrain on top of an underground house. To save space in the yard, the North row utilized a longer post to allow closer ...


    By Patriot Solar Group

  • Penetrologger CBR German Federal Defence Force - Case Study

    Project name Penetrologger CBR German Federal Defence Force Client German Federal Defence Force Country Germany Background and objective Three years ago, Eijkelkamp started a project together with the German Federal Defence Force to develop a new type of ...


    By Eijkelkamp Soil & Water

  • Environmental assessment of depleted uranium used in military armor‐piercing rounds in terrestrial systems

    Depleted uranium (DU) from the military testing and use of armor‐piercing kinetic energy penetrators has been shown to accumulate in soils; however, little is known about the toxicity of DU geochemical species created through corrosion/weathering. The purpose of the current study was to assess the toxic effects and bioaccumulation potential of field‐collected DU oxides to the model terrestrial ...


    By John Wiley & Sons, Ltd.

  • The VIY-2 Ground Penetrating Radar

    Abstract The VIY-2 ground penetrating radar (GPR) with unique sounding possibilities and use simplicity is presented at this paper. The VIY-2 GPR combines all units (synchronizer, transmitting and receiving modules, power supply and antenna system) into single case. The VIY-2 GPR communicates with computer via standard interface RS232 or USB 1.0. Utilized by the VIY-2 GPR technical solutions ...


    By Transient Technologies LLC

  • Pavement thickness case study

    Polk County, Florida A ground penetrating radar study was performed by GeoView to provide information on pavement thickness of a county road in central Florida. The study area was approximately 5 miles in length and was conducted in both lanes of traffic. The GPR data was collected using a proprietary road cart with a Mala Pro-Ex dual channel GPR system. Data was acquired ...


    By GeoView, Inc.

  • Granulation of biological flocs under elevated pressure: characteristics of granules

    Aerobic granules (AG) have good settling ability and are relatively insensitive to the variation of organic loading rate. When sizes of granules become bigger, substrate and oxygen become limited in the granule core, leading to cell lysis and disintegration of granules. The higher the dissolved oxygen, the deeper the oxygen penetration inside AG. AG operated under elevated pressure might be a ...


    By IWA Publishing

  • Forensic investigation of flexible pavements in Ohio

    This paper presents the results of a forensic investigation initiated by the Ohio Department of Transportation in 2006 to determine the reasons for differences in performance of flexible pavements in Ohio. Ten projects with average performance and ten projects with excellent performance were selected for study. Falling Weight Deflectometer and ride quality measurements were taken along all ...


    By Inderscience Publishers

  • CETCO VMS chosen for popular restaurant situated near former dry cleaner site case study

    Project: Buffalo Wild Wings Restaurant Location: Metairie, LA Products: Liquid Boot 500 Gas Vapor Mitigation System GeoVent Gas Venting System Background: The location of a new, two-story Buffalo Wild Wings restaurant was adjacent to a former dry cleaner site. The primary concerns were chlorinated compounds and ...


    By CETCO

  • Gas vapor mitigation system maintains contruction schedule in cold weather case study

    Project: Springhill Suites Location: Ridley, PA Products: Liquid Boot® 500 Gas Vapor Mitigation System, GeoVent™ Gas Venting System Background: The site of the Springhill Suites Hotel and Restaurant posed potential vapor intrusion concerns due to low-level VOC contaminants found in the soil. ...


    By CETCO

  • Advanced Condition Assessments: The benefits of using Pipe Penetrating Radar

    Abstract: Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in/450 mm) nonmetallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including ...


    By SewerVUE

  • Effect of distributed generation modelling on performance of distribution systems

    Due to the continuous increase of distributed generation (DG) penetration into distribution systems, load flow analysis always needs improvement to be more flexible, fast and computationally efficient especially when integrating DG with existing distribution systems. The work in this paper is divided into two parts; in the first part a new algorithm is developed to solve the power flow problem ...


    By Inderscience Publishers

  • Walk Behind Carpet Washing Systems for Commercial Applications

    Cleaning carpets in residences and small offices involves maintaining just a limited space. However, when it comes to full-fledged commercial and industrial carpet maintenance, large carpeted areas need to be cleaned. For this reason, such applications demand the use of portable and compact carpet cleaners that are highly efficient and durable. If you are looking for powerful and versatile carpet ...


    By Daimer Industries Inc.

  • Introduction to Ground Penetrating Radar (GPR)

    About GPR Ground Penetrating Radar (GPR) is a non-invasive method of material analysis based on transmitting an ultra wide band EM signal into the materials. A part of the EM wave is reflected when it reaches a boundary between two materials with different electrical properties. The reflected signal gets recorded at the source of the EM wave and is displayed for the operator and ...


    By Geoscanners AB

  • Puraflex Design and Installation Instructions

    In order to produce an effective barrier to contamination, any membrane must be installed properly by personnel familiar with the material.  Any defects in jointing or preparation of the sub-base could damage the integrity of the lining system and ultimately lead to barrier failure. ITP LTD's Design and Installation Guide describes the quality control measures, earthworks/ground preparation, ...

  • Condition Assessments using Pipe Penetrating Radar: the Metro Wastewater Reclamation District - Denver, CO Harvard Gulch Interceptor Case Study

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. The key advantage of PPR is the unique ability to map pipe wall ...


    By SewerVUE

  • Development of PSO-based robust controller for maximising wind penetration

    In this paper, a new robust controller has been proposed for attaining the maximum safe instantaneous wind penetration. Particle swarm optimisation (PSO)-based algorithm has been developed to obtain the maximum safe instantaneous penetration by the optimisation of grid parameters. The developed algorithm has been tested on modified IEEE 14-bus system. The effectiveness of the proposed methodology ...


    By Inderscience Publishers

  • A grey system approach for forecasting disposable computer waste quantities: a case study of Delhi

    An optimised long-term planning for the management of disposable computer waste is a dire need of present owing to the exponentially growing waste quantities. Assessment of waste inventory is one of the first steps in the planning process. An efficient planning needs assessment of waste generation quantities and for long term planning, forecasting future quantities is of prime importance. This ...


    By Inderscience Publishers

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