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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science


2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.


2020 IEEE Power & Energy Society General Meeting (PESGM)

The Annual IEEE PES General Meeting will bring together over 2900 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more


ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

The ICASSP meeting is the world's largest and most comprehensive technical conference focused on signal processing and its applications. The conference will feature world-class speakers, tutorials, exhibits, and over 50 lecture and poster sessions.


IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium

All fields of satellite, airborne and ground remote sensing.


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Xplore Articles related to Nist Standards

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History of Microwave Metrology at NIST

50th ARFTG Conference Digest, 1997

A sage once said that “no subject can possibly be as interesting as its own history”. He probably never had to sit through a lecture on the history of a branch of technology! In order to make the following review of microwave development at NIST more palatable, the author will inject occasional humor, and rather than simply enumerating facts and ...


High-Speed Nb/Nb–Si/Nb Josephson Junctions for Superconductive Digital Electronics

IEEE Transactions on Applied Superconductivity, 2008

Josephson junctions with cosputtered amorphous Nb-Si barriers are being developed at NIST for use in voltage standard circuits. These junctions have the potential for a wide range of applications beyond voltage standards because their electrical properties can be tuned by controlling both the composition and the thickness of the barrier. If the composition of the barrier is tuned so that ...


Role Engineering: Methods and Standards

IT Professional, 2011

Most of today's large firms use some form of role-based access control (RBAC) to support thousands of users and permission controls. Recognizing the need for some commonality among the various RBAC models, the National Institute of Standards and Technology proposed the NIST Model for RBAC in 2000. NIST is now working to update and enhance this standard.


The SQL StandarD: How it Happened

IEEE Annals of the History of Computing, 2013

Donald R. Deutsch joined the US government agency now called the National Institute of Standards and Technology (NIST) in the last 1970s and the X3H2 Database Standards Committee (DSC) in Washington DC in April 1978. Initially chartered only to develop a standard Data Definition Language (DDL) for network DBMSs, in time the DSC became the epicenter of US and international ...


The control of autonomous underwater vehicles through a hierarchical structure of value priorities

Proceedings of the 1987 5th International Symposium on Unmanned Untethered Submersible Technology, 1987

A value-driven control methodology is being developed to accomplish the higher-level decision and planning functions for the group of cooperating Autonomous Underwater Vehicles (AUVs) that are to be demonstrated in Lake Winnipesaukee. The control structure, which is being developed jointly by Decision-Science Applications and the National Bureau of Standards, follows the same hierarchical structure that has been used by the ...


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Educational Resources on Nist Standards

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IEEE-USA E-Books

  • History of Microwave Metrology at NIST

    A sage once said that “no subject can possibly be as interesting as its own history”. He probably never had to sit through a lecture on the history of a branch of technology! In order to make the following review of microwave development at NIST more palatable, the author will inject occasional humor, and rather than simply enumerating facts and events, will seek to point out some of the driving forces which shaped the development of this technology at NIST and which are often beyond our control. The following viewgraphs, which are mostly self explanatory, cover the outIine of the material and will be supplemented by some photographs which would not show up well in this digest printing.

  • High-Speed Nb/Nb–Si/Nb Josephson Junctions for Superconductive Digital Electronics

    Josephson junctions with cosputtered amorphous Nb-Si barriers are being developed at NIST for use in voltage standard circuits. These junctions have the potential for a wide range of applications beyond voltage standards because their electrical properties can be tuned by controlling both the composition and the thickness of the barrier. If the composition of the barrier is tuned so that the resistivity is close to the metal-insulator transition, the high resistivity allows junctions with a large characteristic voltage and reproducible critical-current densities, which should be ideal for high-speed digital superconductive device applications. Because these junctions are intrinsically shunted, there is no need for external shunt resistors, which could start to become a limitation as the development of devices leads to higher critical-current densities and greater circuit densities. Presently, the AlOx-barrier junctions used in digital superconducting electronics suffer from poor reproducibility, particularly for the high critical-current densities needed for high-speed applications. In this paper, amorphous Nb-Si barrier junctions with characteristic voltages on the order of 1 mV and characteristic frequencies on the order of hundreds of gigahertz are demonstrated. This junction technology looks promising for applications in high-speed digital electronics.

  • Role Engineering: Methods and Standards

    Most of today's large firms use some form of role-based access control (RBAC) to support thousands of users and permission controls. Recognizing the need for some commonality among the various RBAC models, the National Institute of Standards and Technology proposed the NIST Model for RBAC in 2000. NIST is now working to update and enhance this standard.

  • The SQL StandarD: How it Happened

    Donald R. Deutsch joined the US government agency now called the National Institute of Standards and Technology (NIST) in the last 1970s and the X3H2 Database Standards Committee (DSC) in Washington DC in April 1978. Initially chartered only to develop a standard Data Definition Language (DDL) for network DBMSs, in time the DSC became the epicenter of US and international SQL standardization. Deutsch became the DSC vice chair at the second meeting and chair at the committee's 11th meeting in May 1980. Throughout his career that included (in addition to NIST) GE, Sybase, and now Oracle, he has continued to chair the DSC. From this perspective, this article describes how the SQL standard happened.

  • The control of autonomous underwater vehicles through a hierarchical structure of value priorities

    A value-driven control methodology is being developed to accomplish the higher-level decision and planning functions for the group of cooperating Autonomous Underwater Vehicles (AUVs) that are to be demonstrated in Lake Winnipesaukee. The control structure, which is being developed jointly by Decision-Science Applications and the National Bureau of Standards, follows the same hierarchical structure that has been used by the Bureau of Standards for automated manufacturing and robotic control, but it incorporates the DSA value-driven control methodology to provide a flexible decision paradigm for the upper levels of the hierarchy. The planned scenarios are designed to demonstrate the "intelligence" and flexibility of the control system in balancing stealth versus other mission objectives in the choice of tactics and routing alternatives for a potentially hostile environment. The talk will discuss the specific structure of the decision processes and will show examples of system performance as derived from test examples. Previous experience has shown that a hierarchical structure of value priorities can provide a flexible way of controlling multi-layered automated and semi- automated systems. The most comprehensive existing application is in the context of a detailed multi-flight air combat simulation, known as TAC BRAWLER, which provides a fully-automated representation of all of the C3I and decision processes for both the Red and Blue flight leaders and pilots. In detailed comparisons with field exercises and man-in-the-loop simulations, the TAC BRAWLER model has been found to provide a realistic simulation of human combat behavior-including even key "human factors" such as surprise, confusion, and mental overload. In a value-driven control hierarchy, the decision alternatives at each level are scored, or evaluated, in terms of a pre-defined set of valuative "considerations" (or sub-objectives). The weight or importance for each consideration in the decision process is governed by a scalar "value" that is specified dynamically at the next higher level in the control hierarchy. Thus, the "policy intent" at each level in the hierarchy is communicated through a simple "vector of values" to the next lower level in the control hierarchy. This simple method of communicating the policy intent allows such systems to exhibit a remarkably flexible responsiveness to user priorities that can be dynamically specified at the top by the user.

  • ISGT 2012 conference

    Demand response provides an increasingly important resource for maintaining grid stability: reducing demand during system peaks, following the intermittent power generation characteristics of renewable generation, and even increasing demand during system troughs. There are currently demand response programs in use by many distribution utilities as well as at the wholesale level with Independent System Operators. A standard for demand response has not existed that satisfies the communication requirements of retail and wholesale demand response in the U.S.

  • Initial Results from the Infrared Calibration and Infrared Imaging of a Microwave Calibration Target

    None

  • A travelling standard for the calibration of data-acquisition boards

    The large use of measurement systems based on data-acquisition boards makes the traceability-chain assurance a tricky problem, due to the difficulty in consistently calibrating such boards. In this paper the authors describe a travelling standard, which call be used for the calibration of many commercially available acquisition boards. By employing such a travelling standard, the calibration procedure can be remotely exercised by a calibration laboratory through the PC which hosts the board that has to be calibrated. In such a way the calibration results refer to environmental, software and hardware conditions that exactly match the board operating conditions. Furthermore, the board unavailability time is drastically reduced, with a consequent economic advantage for the board owner. The travelling standard embeds a micro-controller, which is responsible for the communication with the PC that hosts the board and for the board-stimulus generation, and a digital multimeter, which acts as a reference standard.

  • Making new history from old standards

    The winds of change are blowing strongly in the International System of Units (known since 1960 as the SI). Already gone is the meter bar, artfully constructed of a platinum-iridium alloy so many years ago, an end-on X-shaped bar carefully scribed by the denizens of the International Bureau of Weights and Measures (BIPM) in Sevres, France.

  • Cesium beam frequency standards

    This historical review of the development of cesium beam frequency standards covers the period from the announcement of the first atomic frequency standard in 1949 to the present. It describes the concepts as well as the key factors affecting the development of the various cesium standards.



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