biosensor-based measurement system Articles

  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • A novel image processing-based system for turbidity measurement in domestic and industrial wastewater

    Wastewater treatment facilities are continually challenged to meet both environmental regulations and reduce running costs (particularly energy and staffing costs). Improving the efficiency of operational monitoring at wastewater treatment plants (WWTPs) requires the development and implementation of appropriate performance metrics; particularly those that are easily measured, strongly ...


    By IWA Publishing

  • Measuring the performance of Chinese regional innovation systems with two-stage DEA-based model

    The regional innovation system (RIS) plays a key role in the growth of a nation's competence. This paper develops a tool to measure the innovative performance of Chinese RIS in the period of 2001-2005. The technique of data envelopment analysis (DEA) is employed to determine a multifactor innovative performance system that inherently recognises the trade-off among various factors. This study ...


    By Inderscience Publishers

  • Measuring the Effectiveness of Watershed-Based General Stormwater Permitting

    ABSTRACTThe U.S. EPA and most water resources professionals advocate holistic and adaptive watershed management approaches to the protection and restoration of aquatic ecosystems by encouraging pollution control strategies that are developed through collaborative partnerships within a hydrologic boundary. This paper evaluates the effectiveness of the holistic adaptive management approach through ...

  • Software-based Neutron Flux Measurement Channel (NFMC)

    For research nuclear reactors such as the TRIGA type, the design of Neutron Flux Measurement Channels (NFMC) has been based, mainly, on discrete digital electronic technology. The work presented here consists of the development of a new version of an NFMC whose aim is to measure the reactor power through six decades using the correlated signal of a wide range fission chamber. The correlation ...


    By Inderscience Publishers

  • Biosensor with total internal reflection imaging ellipsometry

    In order to monitor multiple protein reaction processes simultaneously, a biosensor based on imaging ellipsometry operated in the total internal reflection mode is proposed. It could be realised as an automatic analysis for protein interaction processes with real-time label-free method. Its principle and methodology as well as a demonstration for its applications are presented.Keywords: ...


    By Inderscience Publishers

  • Schedule performance measurement based on statistical process control charts

    In a job–shop environment, achieving a schedule that is on target is difficult due to the dynamism of factors affecting the system. In this paper the Shewart's Individuals control chart is applied to a scheduling process for the purpose of measuring schedule performance. The charts are applied to monitor the deviations of actual from scheduled process times for jobs on a process machine. Data ...


    By Inderscience Publishers

  • Case Study: Odor Abatement Solutions

    Odor issues related to industrial processes are not uncommon.  An odor is caused by one or more volatilized organic compounds (VOCs) that humans can perceive by the sense of smell.  The challenge is that “odor is subjective, and what is sweet to some, can be a nuisance to others.   In most cases the ...

  • 7 Ways a Data Logger Can Save You Money

    Every day we talk with dozens of customer to help them find the right data logger for their project. One of the first questions we ask is “Why are you buying a data logger?” Our goal is to understand the problem they are trying to solve or reason they are looking for a logger. Like many things, it often boils down to money: trying to reduce the cost of lost product or production or ...


    By CAS DataLoggers

  • Knowledge-based system for automatic MBR control

    MBR technology is currently challenging traditional wastewater treatment systems and is increasingly selected for WWTP upgrading. MBR systems typically are constructed on a smaller footprint, and provide superior treated water quality. However, the main drawback of MBR technology is that the permeability of membranes declines during filtration due to membrane fouling, which for a large part ...


    By IWA Publishing

  • How to Securely Record Measurement Data: PC-Based or Stand-alone?

    How to Securely Record Measurement Data is a very common question asked when deciding a PC-Based or Stand-alone DAQ System. Continuous, secure data acquisition system is possible both with a PC-based system or a stand-alone independent system. Which system you choose depends not only on your application but also on your infrastructure and available budget. ...


    By CAS DataLoggers

  • Flow measurements in sewers based on image analysis: automatic flow velocity algorithm

    Discharges of combined sewer overflows (CSOs) and stormwater are recognized as an important source of environmental contamination. However, the harsh sewer environment and particular hydraulic conditions during rain events reduce the reliability of traditional flow measurement probes. An in situ system for sewer water flow monitoring based on video images was evaluated. Algorithms to determine ...


    By IWA Publishing

  • New laser-based dust emission monitoring system

    Abstract A new generation of continuous particulate matter concentration monitoring instruments is presented, covering a measuring range of 0 to 1000 mg/m3. The laser-based scattered light instrument gives an improved stability as well as excellent resolution in the low range. This enables high concentration measurement as well as especially low emission monitoring down to 0.01 mg/m3 with a ...


    By SIGRIST - PHOTOMETER AG

  • An agent-based approach for generating virtual sewer systems

    The application of artificial case studies is a well established technique in urban drainage to test measures, approaches or models. However, the preparation of a virtual case study for a sewer system is a tedious task. Several algorithms have been presented in the literature for an automatic generation of virtual sewer systems. Applying the approach of generating virtual cities by means of the ...


    By IWA Publishing

  • Nanostructured vanadium oxide based systems: their applications in supercapacitors

    Synthesis and characterisation of nanostructured vanadium oxide based systems and their application in energy storage devices, namely supercapacitors, is presented. Vanadium oxide has been synthesised using a hydrothermal route in presence of various templates. X-ray diffraction studies reveal the formation of vanadium (IV) oxide as majority phase. SEM and TEM results depict presence of different ...


    By Inderscience Publishers

  • Developing a performance measurement system for world-class distribution logistics by using activity-based costing and management. Case: basic metal industries

    The performance of distribution logistics has developed into a significant element in the competitiveness of an industrial company. The basis for the development has been the globalisation of the markets in the 20th century, the customer's increased demand for service and the capital intensiveness of distribution logistics. In order to have control over the performance and capability to direct ...


    By Inderscience Publishers

  • An event-based hydrologic simulation model for bioretention systems

    Bioretention systems are designed to treat stormwater and provide attenuated drainage between storms. Bioretention has shown great potential at reducing the volume and improving the quality of stormwater. This study introduces the bioretention hydrologic model (BHM), a one-dimensional model that simulates the hydrologic response of a bioretention system over the duration of a storm event. BHM ...


    By IWA Publishing

  • Real-time control of sewer systems using turbidity measurements

    Real-time control (RTC) of urban drainage systems has been proven useful as a means to reduce pollution by combined sewer overflow discharges. So far, RTC has been investigated mainly with a sole focus on water quantity aspects. However, as measurement techniques for pollution of wastewater are advancing, pollution-based RTC might be of increasing interest. For example, turbidity data sets from ...


    By IWA Publishing

  • Web4diagnostics – experience with web-based diagnostic systems in power plants

    At SMORN 8, a new web-based diagnostic system – web4diagnostics – was presented (Kunze, 2002). During the last two years, this system became the standard diagnostic system infrastructure for internal use in Siemens Power Generation, which integrates a large data archive of measured data and capabilities for data analysis and evaluation. Besides this internal use, today some 15 power plants ...


    By Inderscience Publishers

  • A measurement vision for the future

    Professor John Pethica is the National Physical Laboratory's (NPL) chief scientific adviser. He took up the role at the tail end of 2007 and here lays out his vision for the future of the UK’s National Measurement Institute. For thirty years I have worked across both public and private sectors, using cutting-edge science to establish new businesses and advise on public policy. This has taken me ...

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