21 research outputs found

    A flexible computer-to-computer protocol for DISNET: a Distributed Instrument System NETwork

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    This article evaluates the performance of a DISNET channel control module

    The implementation of a GC/MS data system using DISNET: a Distributed Instrument System NETwork

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    The primary goal of a computer network is to achieve resource sharing between several computers. Resource sharing is most easily performed at the application program level, with lower layers of software providing communications services. Application programs which make local data, peripherals, or processes available for shared use are defined as ’resource providers’. Application programs which require such resources from the network are defined as ’resource consumers’. This distinction helps the system designer identify the qualities of resource providers and consumers necessary to address data communication problems in a straightforward manner, while ensuring the effort invested will provide satisfactory solutions. We have developed this resource sharing protocol for the Distributed Instrument System NETwork (DISNET) to provide an environment suitable for the development and growth of a distributed system for real-time instrument control, data acquisition, and computation in a laboratory environment

    Laboratory Information Management System (LIMS): A case study

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    In the late 70's, a refurbishment of the analytical laboratories serving the Materials Division at NASA Lewis Research Center was undertaken. As part of the modernization efforts, a Laboratory Information Management System (LIMS) was to be included. Preliminary studies indicated a custom-designed system as the best choice in order to satisfy all of the requirements. A scaled down version of the original design has been in operation since 1984. The LIMS, a combination of computer hardware, provides the chemical characterization laboratory with an information data base, a report generator, a user interface, and networking capabilities. This paper is an account of the processes involved in designing and implementing that LIMS

    Development of an intelligent motion controller and its application to the automation of a McBain-Bakr balance

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    This paper presents a modular approach to motion control using a microconlroller-based stepper motor driver. As an application of the driver, an inexpensive and portable one-dimensional robot was built to automate an existing experimental setup for measurement of adsorption isotherms using the McBain-Bakr technique. Automatic recording of position versus time yields data for the sludy of adsorption/desorption dynamics

    A microcomputer automated circular dichroism spectropolarimeter

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    DISNET: a Distributed System NETwork

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    This paper describes a Distributed Instrument System NETwork (DISNET) which was implemented within the Department of Chemistry at Cleveland State University
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