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Full-Text Articles in Engineering
Pneumatic Capsule Pipeline, Purdue Ect Team
Pneumatic Capsule Pipeline, Purdue Ect Team
ECT Fact Sheets
Pneumatic capsule pipeline (PCP) uses wheeled capsules (vehicles) to carry cargoes through a pipeline filled with air. Modern large diameter PCP systems utilize through flow booster pumps, also known as jet pump injectors. These create the pressure differentials required to propel multiple capsules through a pipeline, while allowing both terminals at atmospheric pressure. This is done by placing a booster pump midway along the pipeline, and designing it in such a way that capsules can bypass the pump.
Hybrid Computerized Decision Support System For Infrastructure Assessment, Purdue Ect Team
Hybrid Computerized Decision Support System For Infrastructure Assessment, Purdue Ect Team
ECT Fact Sheets
Currently, assessment techniques are performed subjectively, time consuming, and rely mostly on human visual inspection. Such subjective assessment methods have been identified as a critical obstacle to effective infrastructure management. The hybrid computerized decision support system for construction quality assessment applies concepts in the fields of machine learning, pattern recognition, and image processing. The system will automate the assessment process by acquiring digital images of the areas to be assessed and analyzing the images to identify and measure defects. Moreover, sample images will be used to train the system to acquire expert knowledge in identifying the defects and using this …
Radio Frequency Identification (Rfid) Tag, Purdue Ect Team
Radio Frequency Identification (Rfid) Tag, Purdue Ect Team
ECT Fact Sheets
For the receipt and tracking of pipe supports material at construction jobsites, the proprietary electronic identification tags, RFID (Radio Frequency Identification) was designed and manufactured by SAT Corporation. A RFID system consist of two major components (reader and the tag) which work together to provide the user with a non-contact solution to uniquely identify people, assets, and locations.
Production Of Construction Materials Using Advanced Recycling Technologies, Purdue Ect Team
Production Of Construction Materials Using Advanced Recycling Technologies, Purdue Ect Team
ECT Fact Sheets
Waste reduction, material reuse, and use of recycle-content products can be focused on the management system somewhat. In contrast, material recycling is the technical issue how to create new materials using wastes. Thus, three advanced recycling technologies; 1) Synthetic Lightweight Aggregate technology (SLA), 2) Clean Coal Technology (CCT), and 3) RP-1 Polymer Identification System are introduced.
Encapco Emulsified Treated Base Product, Purdue Ect Team
Encapco Emulsified Treated Base Product, Purdue Ect Team
ECT Fact Sheets
Encapco’s organic-based asphalt emulsion is used to immobilize lead in contaminated soil. Unlike other fixation or stabilization technologies, which physically bind contaminants in the soil matrix, Encapco’s emulsion is capable of chemically fixating lead. The Encapco process employs a chemical binding reaction in addition to encapsulation to meet regulatory leaching tests. The Encapco process has been evaluated on a number of contaminated materials ranging from silty sand from a quarry site, contaminated sand from a steel mill, and a foundry sand.
Rp-1 Polymer Identification System : Recycler Of Plastics, Purdue Ect Team
Rp-1 Polymer Identification System : Recycler Of Plastics, Purdue Ect Team
ECT Fact Sheets
It has been noticed that one of the primary obstacles in recycling is the lack of sufficient means to avoid cross contamination during collection. In particular, the new method to quickly and easily identify materials has been demanded in plastic industry due to the dramatic acceleration of plastic consumption in the last forty years. SpectraCode's new technology enables the instant point-and-shoot identification of black plastics, extracting a definitive signature from most black plastics in half a second or less. This speed is achieved through a modified probe that uses a sampling technique SpectraCode calls distributed focusing. This technology, when used …
Emerging Video Surveillance And Monitoring Technologies, Purdue Ect Team
Emerging Video Surveillance And Monitoring Technologies, Purdue Ect Team
ECT Fact Sheets
The traditional video surveillance applications have some limitations; 1) one unit per one person in one place, 2) the limited area for surveillance due to the location of cameras 3) increasing operating cost, 4) hard reductions in theft and claim rates over the long term. Recently, video technology has grown by leaps and bounds throughout the last few years due to the steep development of Information Technology (IT). The newest video surveillance technologies seem to be taking two aspects: 1) Digital Video Surveillance (DVS) of a turn toward digital video servers using Internet access, and 2) Multi-modal User Interface (MUI).
Air Ventilation Protection System For Building Security, Purdue Ect Team
Air Ventilation Protection System For Building Security, Purdue Ect Team
ECT Fact Sheets
The new technology to solve the limitation of conventional Collective protection equipment (CPE) system has been developed as "Combined ESP/ESF/PCO and microfibrous media CPE application". This concept of this new technology is the combination of the both systems; 1) Microfibrous Material Technology, and 2) Photocataytic Oxidation Technology.
In Situ Enhanced Soil Mixing, Purdue Ect Team
In Situ Enhanced Soil Mixing, Purdue Ect Team
ECT Fact Sheets
In Situ Enhanced Soil Mixing (ISESM) is a remediation technology that has been used to remediate soils contaminated with volatile organic compounds (VOCs). The technology was developed by industry with the assistance of the U.S. Department of Energy’s Office of Science and Technology and the Office of Environmental Restoration.
Funnel & Gate System, Purdue Ect Team
Funnel & Gate System, Purdue Ect Team
ECT Fact Sheets
The limited success and high cost of traditional 'active' ground-water-contaminant plume management efforts (i.e., pump-and-treat systems) has stimulated a search for less expensive 'passive' plume interception and in-situ treatment technologies. The 'funnel and gate system,' which uses heterogeneous (surface-mediated) reactions on porous media to degrade dissolved contaminants, is one passive technology under consideration.
In Situ Remediation Using Horizontal Wells, Purdue Ect Team
In Situ Remediation Using Horizontal Wells, Purdue Ect Team
ECT Fact Sheets
Horizontal well technology has been widely used in petroleum and underground utility installation. Since late 1980's, the technology has been adapted for environmental remediation applications. Two general methods in drilling horizontal wells have been used in remediation, trenched and directionally-drilled. The first method involves the excavation of a relatively large diameter borehole, with simultaneous installation of well materials and backfill. The second method, directional drilling, produces a smaller diameter borehole and well materials are installed following the completion of drilling activities.
Extraction Of Contaminated Soil Using High Pressure Jet Grouting, Purdue Ect Team
Extraction Of Contaminated Soil Using High Pressure Jet Grouting, Purdue Ect Team
ECT Fact Sheets
Removal of contaminated soil underneath existing structures causes settlement. There is a need for a remediation technology that eliminates this problem. The jet grouting by the triple rod system can be combined with an on site remediation technology (e.g., soil washing). Jet grouting was developed primarily for underpinning and/or excavation support. The benefits of this technology lie in the future reduction of structural settlement, and site access flexibility.
Glass Diaphragm Walls, Purdue Ect Team
Glass Diaphragm Walls, Purdue Ect Team
ECT Fact Sheets
The materials currently applied to confine contaminated soils are not the best solution (ex. slurry walls). A new contaminant confining material is presented where the costs of digging and hauling the contaminated soil are eliminated. For contaminant enclosure, the new technology incorporates a diaphragm wall system consisting of special glass panels with a sealing made out of glass.
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
ECT Fact Sheets
The technology is an enhancement process designed for integration with primary in-situ treatment technologies such as vapor extraction, bioremediation, thermal treatment, and 'pump and treat'. Fractures in dense soils are created, using hydraulic or pneumatic methods, making existing fractures larger to get at contaminants and allowing a more effective distribution of the extractive air throughout the soil. Pneumatic Fracturing was jointly developed by Accutech Remedial Systems Inc. and the New Jersey Institute of Technology. It involves the injection of air (or another gas) into a contaminated geologic formation at sufficient pressure and flow rate to create artificial fractures or to …
Plasma Arc Torch Technology, Purdue Ect Team
Plasma Arc Torch Technology, Purdue Ect Team
ECT Fact Sheets
For many years, in-situ thermal vitrification has been recognized as one method to remediate contaminated soils and help stabilize land fills. However, the complexity of the process and the uncertainty of the results have limited the use of this remediation technique.A plasma is a gas that has been ionized by the electric arc of a plasma torch and can therefore respond to electrical and magnetic fields. Plasma arc technology can create plasma using almost any type of gas (oxygen, nitrogen, carbon monoxide, air, etc.) and in a wide range of pressures (vacuum to 20 atmospheres).The process of plasma remediation of …
Behavior-Based Safety In Construction, Purdue Ect Team
Behavior-Based Safety In Construction, Purdue Ect Team
ECT Fact Sheets
Behavior-based safety approach that was introduced into the United States in 1930's and has been popular in manufacturing area since 1980's assumes that many of injuries and illnesses are the result of unsafe acts by workers. Behavior-based safety is a proactive approach to increasing safety in the workplace and in the community. It is based on sound, research-based, and behavioral practices, and are easy to use with minimal training.
Ust(Underground Storage Tanks) Leak Detection System, Purdue Ect Team
Ust(Underground Storage Tanks) Leak Detection System, Purdue Ect Team
ECT Fact Sheets
Low range differential pressure (LRDP) leak detection system used to detect leaks in underground storage tanks (UST) was developed by Vista Research, Inc. This leak detection and monitoring system is used for early detection of small leaks in bulk fuel UST’s. The technology works independently of the tank size and rate of leakage as low range differential pressure (LRDP) system is a mass-based.
Arcagent – Weld Process Quality Monitoring System, Purdue Ect Team
Arcagent – Weld Process Quality Monitoring System, Purdue Ect Team
ECT Fact Sheets
The ARCAgent 2000 is a real-time monitoring and alarming unit for automated and semi-automated arc welding (GMAW, GTAW, FCAW, SAW, SMAW) applications. The ruggedized ARCAgent 2000 uses an embedded microprocessor for high speed analysis of arc current, supply voltage, gas flow, wire feed speed, and an additional 4-20 mA sensor to verify the weld process parameters. When process problems are detected, context specific diagnostics information is displayed directly to the operator for corrective action.
Soundprint: Continuous Acoustic Monitoring For Structure, Purdue Ect Team
Soundprint: Continuous Acoustic Monitoring For Structure, Purdue Ect Team
ECT Fact Sheets
The effective evaluation and management of corrosion in unbonded post-tensioned tendons requires an understanding of the causes of corrosion as well as an appreciation of the measures required to mitigate future corrosion. Present evaluation methods have been unsuccessful in accurately assessing the existing condition of post-tensioned structures. Continuous monitoring technology allows engineers to locate future failures so that property owners can implement cost-effective management strategies. An acoustic monitoring system, SoundPrint® has been developed which allows continuous monitoring of entire structures.
Electromagnetic Acoustic Transducers (Emat), Purdue Ect Team
Electromagnetic Acoustic Transducers (Emat), Purdue Ect Team
ECT Fact Sheets
The current accepted non-destructive evaluation methods used in the inspection of welds have several shortcomings regarding cost, false defect indications, and lack of sensitiveness to certain flaw orientations in welds.
Real-Time Construction Component Tracking System, Purdue Ect Team
Real-Time Construction Component Tracking System, Purdue Ect Team
ECT Fact Sheets
Accurate and timely identification and tracking of construction components are critical to operating a well-managed and cost efficient construction project. The prototype component tracking system developed for this technology integrates field sensors, portable computers, wireless communication, and real-time kinematic (RTK) global position (GPS) equipment.
Fiber Optic Sensor : Monitoring Precast Beams, Purdue Ect Team
Fiber Optic Sensor : Monitoring Precast Beams, Purdue Ect Team
ECT Fact Sheets
A new bridge over the Rio Puerco river, west of Albuquerque will be the first of its kind in the nation with built-in fiber-optic sensors to monitor stress in the bridge's girders. Known as "smart bridge" technology, the self-monitoring system offers many advantages over methods that rely largely on visual inspections.
Acoustic Wave Sensors, Purdue Ect Team
Acoustic Wave Sensors, Purdue Ect Team
ECT Fact Sheets
Modern office buildings are generally considered safe and healthful working environments. However, energy conservation measures have minimized the infiltration of outside air and contributed to the buildup of indoor air contaminants. Three products manufactured by Microsensor Systems Inc. are introduced: HAZMATCAD, CW Sentry Plus, MiniCAD MKII.
Infrared Gas Sensor, Purdue Ect Team
Infrared Gas Sensor, Purdue Ect Team
ECT Fact Sheets
In recent years, the rapid development of monitoring and detecting technology of indoor air quality have been observed. We have seen the two major streams of detection technology introduced so far: Acoustic wave sensor and Infrared gas sensor. The use of a gas monitoring system in the case of that dangerous levels of gases are detected, can help to prevent an explosion or can help to prevent worker injury or exposure to toxic gases.
Super Therm - Ceramic Paint Insulation, Purdue Ect Team
Super Therm - Ceramic Paint Insulation, Purdue Ect Team
ECT Fact Sheets
SUPER THERM is the result of years of research and development into Thermal Conductivity in cooperation with the Marshall Space Center, division of NASA. SUPER THERM is a combination of high-performance acrylic resins in water, which contain no cosolvents and will dry by evaporation.
Bone-Shaped Short Fiber Composite, Purdue Ect Team
Bone-Shaped Short Fiber Composite, Purdue Ect Team
ECT Fact Sheets
Civil engineers use steel, fiberglass and other similar materials to increase concrete's strength and toughness, but using those materials often requires costly construction techniques. Short-wire reinforced concrete should become a favorite technology since the process is compatible with standard construction processes and the steel used for the bone-shaped fibers is relatively cheap. Researchers at Department of Energy's Los Alamos National Laboratory have discovered that enlarging the ends of small fibers mixed into concrete substantially increases the material's overall strength and toughness.
Electrochemical Chloride Extraction, Purdue Ect Team
Electrochemical Chloride Extraction, Purdue Ect Team
ECT Fact Sheets
Conventional methods to deal with chloride-contaminated concrete require the removal of the contaminated concrete and replacement with uncontaminated concrete. These methods are noisy, dirty, time consuming, costly, and in some cases structurally detrimental. The Norcure system is a rehabilitation method developed to remove salt (chloride ions) from salt contaminated concrete structures without damaging the concrete. The removal of chloride ions stops the corrosion of embedded reinforcing steel and greatly extends the service life of salt contaminated structures.
Pipeman:Safety In Trenches, Purdue Ect Team
Pipeman:Safety In Trenches, Purdue Ect Team
ECT Fact Sheets
Even though heavy construction equipment such as a crane or backhoe excavator, is used to perform the task of pipe laying in the trench, workers are required to be inside the trench to guide the excavation, pipe laying, and final alignment. Work place safety has become a major concern in the construction industry over the past few decades, and trench cave-ins have caused serious and often fatal injuries to workers in the United States. The Construction Automation and Robotics Laboratory(CARL) at North Carolina State University has developed an alternative which involves advanced new technology: the prototype robotic excavation and pipe …
Palm Estimating, Purdue Ect Team
Palm Estimating, Purdue Ect Team
ECT Fact Sheets
Estimators need a way to increase efficiency and lessen the chance for error when collecting estimate information in the field. With Palm Estimating from Timberline, users can have access to the same Precision estimating data they use in the office. Cover page information, item numbers and descriptions, assembly numbers and descriptions, WBS codes, variables and variable help can all be stored on a hand-held device. This ensures estimators have the information they need to collect all of the project details necessary to deliver an accurate, complete bid.
Prosidyc: Simulation Program For Construction Operations, Purdue Ect Team
Prosidyc: Simulation Program For Construction Operations, Purdue Ect Team
ECT Fact Sheets
PROSIDYC is a system for simulating construction operations jointly developed by the Planning and Methods Unit of Dragados y Construcciones, Madrid, Spain and the Division of Construction Engineering & Management at Purdue University. PROject SImulation Dragados Y Construcciones (PROSIDYC) is a computer based system for analyzing construction job site production processes. It is used to improve productivity in the field by studying resource utilization and cycle times and identifying opportunities for production improvement. PROSIDYC uses the CYCLic Operations NEtwork (CYCLONE) modeling format originally developed by Daniel W. Halpin