The Experts below are selected from a list of 75 Experts worldwide ranked by ideXlab platform

Lawrence B Holder - One of the best experts on this subject based on the ideXlab platform.

  • classification of threats via a multi sensor Security Portal
    Intelligence and Security Informatics, 2006
    Co-Authors: Amar Singh, Lawrence B Holder
    Abstract:

    Classification of threats has always been a major Security decision issue when a person walks through a Security Portal. To classify threat by combining data from multiple sensors like Millimeter Wave (MMW) imagery and Multi-zone Metal Detector is proposed and studied. Decisions made according to data from multiple sensors are analyzed. We present results for processing the fused sensor data and study the performance of several learning algorithms on this task. Usually the decision is being made based on single types of sensors, e.g., pulse induction metal detectors. We wish to identify the threats which are not determined by metal detectors alone.

  • ISI - Classification of threats via a multi-sensor Security Portal
    Intelligence and Security Informatics, 2006
    Co-Authors: Amar Singh, Lawrence B Holder
    Abstract:

    Classification of threats has always been a major Security decision issue when a person walks through a Security Portal. To classify threat by combining data from multiple sensors like Millimeter Wave (MMW) imagery and Multi-zone Metal Detector is proposed and studied. Decisions made according to data from multiple sensors are analyzed. We present results for processing the fused sensor data and study the performance of several learning algorithms on this task. Usually the decision is being made based on single types of sensors, e.g., pulse induction metal detectors. We wish to identify the threats which are not determined by metal detectors alone.

Douglas L. Mcmakin - One of the best experts on this subject based on the ideXlab platform.

  • Advanced millimeter-wave Security Portal imaging techniques
    RF and Millimeter-Wave Photonics II, 2012
    Co-Authors: David M. Sheen, Bruce E. Bernacki, Douglas L. Mcmakin
    Abstract:

    Millimeter-wave (mm-wave) imaging is rapidly gaining acceptance as a Security tool to augment conventional metal detectors and baggage x-ray systems for passenger screening at airports and other secured facilities. This acceptance indicates that the technology has matured; however, many potential improvements can yet be realized. The authors have developed a number of techniques over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, and high-frequency high-bandwidth techniques. All of these may improve the performance of new systems; however, some of these techniques will increase the cost and complexity of the mm-wave Security Portal imaging systems. Reducing this cost may require the development of novel array designs. In particular, RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave Portal imaging systems. Highfrequency, high-bandwidth designs are difficult to achieve with conventional mm-wave electronic devices, and RF photonic devices may be a practical alternative. In this paper, the mm-wave imaging techniques developed at PNNL are reviewed and the potential for implementing RF photonic mm-wave array designs is explored.

  • Advanced Millimeter-Wave Imaging Enhances Security Screening
    SPIE Newsroom, 2012
    Co-Authors: David M. Sheen, Bruce E. Bernacki, Douglas L. Mcmakin
    Abstract:

    Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave Security Portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave Portal imaging systems.

Vivian Hoffmann - One of the best experts on this subject based on the ideXlab platform.

  • Mitigating aflatoxin exposure to improve child growth in Eastern Kenya: study protocol for a randomized controlled trial
    Trials, 2015
    Co-Authors: Vivian Hoffmann, Kelly Jones, Jef Leroy
    Abstract:

    Background While the few studies that have looked at the association between stunting and aflatoxin exposure have found surprisingly large effects, the results remain inconclusive due to a lack of randomized controlled studies. This protocol describes a non-blinded, cluster-randomized controlled trial with the specific objective of testing the impact of reduced aflatoxin exposure on (individual) child linear growth. Methods/Design Participants were recruited from among households containing women in the last 5 months of pregnancy in 28 maize-growing villages within Meru and Tharaka-Nithi Counties in Kenya. Households in villages assigned to the intervention group are offered rapid testing of their stored maize for the presence of aflatoxin each month; any maize found to contain more than 10 ppb aflatoxin is replaced with an equal amount of maize that contains less than this concentration of the toxin. They are also offered the opportunity to buy maize that has been tested and found to contain less than 10 ppb aflatoxin at local shops. Clusters (villages) were allocated to the intervention group (28 villages containing 687 participating households) or control group (28 villages containing 536 participating households) using a random number generator. The trial, which is funded by United Kingdom (UK) aid from the UK government, the Global Food Security Portal, and the Ministry for Foreign Affairs of Finland, is currently ongoing. Discussion This study is the first randomized controlled trial (RCT) to test for a causal impact of aflatoxin exposure on child growth. Whether or not this relationship is found, its results will have implications for the prioritization of aflatoxin control efforts by governments in affected regions, as well as international donors. Trial registration American Economic Association RCT Registry # 0000105 . Initial registration date: 6 November 2013, last updated 30 December 2014.

  • Mitigating aflatoxin exposure to improve child growth in Eastern Kenya: study protocol for a randomized controlled trial.
    Trials, 2015
    Co-Authors: Vivian Hoffmann, Kelly Jones, Jef L. Leroy
    Abstract:

    While the few studies that have looked at the association between stunting and aflatoxin exposure have found surprisingly large effects, the results remain inconclusive due to a lack of randomized controlled studies. This protocol describes a non-blinded, cluster-randomized controlled trial with the specific objective of testing the impact of reduced aflatoxin exposure on (individual) child linear growth. Participants were recruited from among households containing women in the last 5 months of pregnancy in 28 maize-growing villages within Meru and Tharaka-Nithi Counties in Kenya. Households in villages assigned to the intervention group are offered rapid testing of their stored maize for the presence of aflatoxin each month; any maize found to contain more than 10 ppb aflatoxin is replaced with an equal amount of maize that contains less than this concentration of the toxin. They are also offered the opportunity to buy maize that has been tested and found to contain less than 10 ppb aflatoxin at local shops. Clusters (villages) were allocated to the intervention group (28 villages containing 687 participating households) or control group (28 villages containing 536 participating households) using a random number generator. The trial, which is funded by United Kingdom (UK) aid from the UK government, the Global Food Security Portal, and the Ministry for Foreign Affairs of Finland, is currently ongoing. This study is the first randomized controlled trial (RCT) to test for a causal impact of aflatoxin exposure on child growth. Whether or not this relationship is found, its results will have implications for the prioritization of aflatoxin control efforts by governments in affected regions, as well as international donors. American Economic Association RCT Registry # 0000105 . Initial registration date: 6 November 2013, last updated 30 December 2014.

Amar Singh - One of the best experts on this subject based on the ideXlab platform.

  • classification of threats via a multi sensor Security Portal
    Intelligence and Security Informatics, 2006
    Co-Authors: Amar Singh, Lawrence B Holder
    Abstract:

    Classification of threats has always been a major Security decision issue when a person walks through a Security Portal. To classify threat by combining data from multiple sensors like Millimeter Wave (MMW) imagery and Multi-zone Metal Detector is proposed and studied. Decisions made according to data from multiple sensors are analyzed. We present results for processing the fused sensor data and study the performance of several learning algorithms on this task. Usually the decision is being made based on single types of sensors, e.g., pulse induction metal detectors. We wish to identify the threats which are not determined by metal detectors alone.

  • ISI - Classification of threats via a multi-sensor Security Portal
    Intelligence and Security Informatics, 2006
    Co-Authors: Amar Singh, Lawrence B Holder
    Abstract:

    Classification of threats has always been a major Security decision issue when a person walks through a Security Portal. To classify threat by combining data from multiple sensors like Millimeter Wave (MMW) imagery and Multi-zone Metal Detector is proposed and studied. Decisions made according to data from multiple sensors are analyzed. We present results for processing the fused sensor data and study the performance of several learning algorithms on this task. Usually the decision is being made based on single types of sensors, e.g., pulse induction metal detectors. We wish to identify the threats which are not determined by metal detectors alone.

Jef Leroy - One of the best experts on this subject based on the ideXlab platform.

  • Mitigating aflatoxin exposure to improve child growth in Eastern Kenya: study protocol for a randomized controlled trial
    Trials, 2015
    Co-Authors: Vivian Hoffmann, Kelly Jones, Jef Leroy
    Abstract:

    Background While the few studies that have looked at the association between stunting and aflatoxin exposure have found surprisingly large effects, the results remain inconclusive due to a lack of randomized controlled studies. This protocol describes a non-blinded, cluster-randomized controlled trial with the specific objective of testing the impact of reduced aflatoxin exposure on (individual) child linear growth. Methods/Design Participants were recruited from among households containing women in the last 5 months of pregnancy in 28 maize-growing villages within Meru and Tharaka-Nithi Counties in Kenya. Households in villages assigned to the intervention group are offered rapid testing of their stored maize for the presence of aflatoxin each month; any maize found to contain more than 10 ppb aflatoxin is replaced with an equal amount of maize that contains less than this concentration of the toxin. They are also offered the opportunity to buy maize that has been tested and found to contain less than 10 ppb aflatoxin at local shops. Clusters (villages) were allocated to the intervention group (28 villages containing 687 participating households) or control group (28 villages containing 536 participating households) using a random number generator. The trial, which is funded by United Kingdom (UK) aid from the UK government, the Global Food Security Portal, and the Ministry for Foreign Affairs of Finland, is currently ongoing. Discussion This study is the first randomized controlled trial (RCT) to test for a causal impact of aflatoxin exposure on child growth. Whether or not this relationship is found, its results will have implications for the prioritization of aflatoxin control efforts by governments in affected regions, as well as international donors. Trial registration American Economic Association RCT Registry # 0000105 . Initial registration date: 6 November 2013, last updated 30 December 2014.