resistivity system Articles
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Resistivity system voltage output
One limit of FlashRES resistivity meter is its voltage output. It can output maximum voltage of 350v, this is because the multi-core cable of the FlashRES cannot withstand voltage over 350v. the multi-core cable contains 32 small wires, voltage higher than 350v will damage these wires and make the cable short circuit. We thus limit the maximum voltage output for safety reasons. Reference ...
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FlashRES application
FlashRES resistivity system is very flexible in terms of application, it can perform: Surface surveys Surface borehole surveys Crosshole and multiple-holes surveys Surface-points surveys High efficient Mise a la Masse surveys 3D survey Time lapse surveys These survey times can be applied to engineering, mining, arachaeology and environmental surveys. Reference ...
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Case study - Acid Containment – Utilities Inc.
Location: N/A Project Contractor: F.S.I., Inc of Fort Myers System Applied: Polyurea Poly Vers LC25, PolyVers VT40 Substrate / Area: Acid Containment Date Completed: January 2007 Project Description The acid containment’s existing RoboLiner was failing. The RoboLiner was removed and hydro blasted to remove bonding agent. Surface then was neutralized to accept primer. Surface had ...
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Geoweb 3-D structure stabilizes mine haul roads - Case study
Stable Roads Save Money With over 30 years of successful applications in roadways, the GEOWEB system offers inexpensive load support and substantial reduction of rolling resistance on mine haul roads. Geoweb Lowers Rolling Resistance: The GEOWEB system can provide a 3% rolling resistance with little to no maintenance compared to the typical 8% rate at which most mine roads operate. The ...
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Compare active and passive cables
Active cables refer to the cable with electronic part in the cable. Control and ADC in resistivity system controls the electronic parts in the cable, which controls the current injection. Passive cables refer to the cable with no electronic part in the cable. One of the advantage of passive cables is its ability to borehole and marine surveys, operator can put passive cables in water. Putting ...
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PERMALERT® Leak Detection System: Protecting Data Centers Since 1990
As data centers are getting increasingly larger in scale, efficient HVAC and cooling systems have become high priorities for major data center operators. To ensure maximum uptime of these critical supporting systems, effective leak detection and monitoring solutions are essential. The majority of leak detection systems in the market today are based on resistive technology that relies on a liquid ...
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Asahi/America Application Story – Railroad
CSX's underground air brake system was corroding. They had thousands of feet of pipe in the ground that was beginning to fail. The system was failing as a result of their current system's inability to withstand their application's physical demands. They had to find a piping system that was rugged, durable, resistant to corrosion and cost effective. Asahi/America had what they ...
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Electrical Method
Vertical Electrical Soundings - Designed and performed vertical electrical soundings (VES) for proposed landfilling sites, utilizing an electrical resistivity system to determine depth to the water table. ADEQ project. Electrical Resistance Tomography - Participated in the Leak Detection Monitoring and Mitigation (LDMM) Project that utilized Electrical Resistance Tomography (ERT) developed by ...
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Resilience and vulnerability in critical infrastructure systems – a physical analogy
Systems consisting of parts – which may be seen as atomic (indivisible) components that usually come in large numbers are coupled with each other with a strength expressed as coupling 'energy' and respond to external stress – were often shown to share behavioural features largely indifferent to the nature of the system. Taking advantage of this, the paper employs the physics concept of hysteresis ...
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Nanoscopic surface architecture based on molecular self-assembly and scanning probe lithography
Scanning probe lithography and molecular self-assembly have been integrated for constructing surface nanostructures. In the first part of this paper, organosilane monolayers grown through molecular self-assembly, i.e., self-assembled monolayers (SAMs) are applied as patterning media in scanning probe lithography based on scanning tunnelling microscopy (STM) and atomic force microscopy (AFM) with ...
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Eliminate Electromagnetic Interference from Analog Systems
This article focuses on the common causes of noise in analog devices related to water quality measurement, but the concepts and preventative measures are applicable to any electronic measuring device. We go over the types of electromagnetic interference along with how to identify and prevent them. Additional tips for designing a noise-resistant system are provided toward the end of the ...
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Surface resistivity survey case study 1
The purpose of this surface electrical resistivity survey was to delineate the event direction of a gold ore deposit. The surface electrical resistivity survey uses a 10m interval cable, that permits the FlashRES 61 channel resistivity meter to detect depth up to 120m. The depth is dependent on the cable length. The system found an occasional resistive band from 0-350m. This knowledge was of ...
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Dynamic analysis of glass curtain walls with protective films subjected to blast loading
Recent terrorist events have underscored the importance of designing glass curtain walls as engineered systems. Glass panels which shatter in the explosion produce high velocity fragments, the cause of majority of injuries in such incidents. Glass curtain walls with protective films have proven to be well suited for use in glazing systems that resist blast loading. The rectangular glass plates ...
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Resistor Automatic Test Machine
The automatic testing machine completes the automatic feeding and resistance test of resistance chip, a collection of OK products and NG products unloading, etc. 1. Resistance chip is automatic feeding by vibration bowl. 2. The direction of the resistance chip is detected by the IV visual system. 3. Use resistance tester to detect the resistance of the resistance chip. 4. The NG product will be ...
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Grounding resistance measurement using vertically driven rods near residential areas
Soil resistivity is usually measured at the selected site either for new installation or in the existing grounding system. In this paper, soil resistivity and grounding resistance are measured at the four selected sites of the Lambak Kanan, a residential area of Brunei Darussalam. The measured soil resistivities are then compared with the resistivities calculated by CYM GRD software and the rms ...
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Understanding threats: a prerequisite to enhance survivability of computing systems
This paper shows the usefulness of using simple honeypots to obtain data for a better understanding of some internet attack processes. The acquired knowledge can then be used to drive sound security design decisions in order to improve the ability of our systems to resist to attacks. Based on three years of collected data, we provide in this paper a critical review of geographical information ...
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Industrial Anaerobic Biological Fermentation - Case Study
The cooperation between the above mentioned innovative companies forces to impressive results. Hager & Elsässer planned the Aquatyx R2S reactor-technology which is installed in glass lined steel tanks from GLS Tanks International. AQUATYX is primarily for industrial anaerobic biological fermentation of highly polluted wastewater, as they are to also found for example in the paper ...
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CASE STUDY #27 Q-PAC PLASTIC - “Q-PAC saved us $8,362 per year and did not plug!”
The city of Pittsfield, Massachusetts purchased two acid scrubbing towers for their Municipal incinerator. The scrubbers had to perform at unusually high particulate loadings forcing change-out of packing every 3-4 months. Because the plant cannot operate without the scrubber and because a plant shutdown is scheduled once a year it was imperative to find a packing or system that could ...
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Modelling of batch adsorption of metal ions onto sago waste
Adsorption kinetics of lead, copper and zinc ions onto sago waste were investigated in batch system. A two-resistance mass transfer model, namely the Film-Solid Diffusion Model (FSDM) which consisted of an external resistance and intra-particle resistance was applied to describe the experimental data successfully. The external mass transfer coefficient (kƒ) values were 1.85 ×10−2 ± 4.74% cm/s ...
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What’s the Point of Brake Fluid?
The quality of brake fluid affects the reliability of the braking system and road safety. This substance transmits energy from master brake cylinder to wheel cylinder. Vehicle braking is characterized by friction forces between the brake rotor and brake pads. This releases a certain amount of heat which is transmitted to brake fluid through service elements of the brake system. Therefore, ...
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