11 research outputs found
Automation and Integration of Hardware/Software Co-Verification Tool with Embedded Multi Processors System-On-Chip (MPSoC) Instrument Avionics for Next Generation Imagining Spectrometer (NGIS): On-Chip LiveCheckHSI
The emergent technology of System-on-Chip (SoC) and Multi processors System-on-Chip (MPSoC) devices promises lighter, smaller, cheaper, and more capable and reliable space electronic systems that could help to unveil some of the most treasured secrets in our universe. This technology is an improvement over the technology that is currently used in space applications, which lags behind state-of-the-art commercial-off-the-shelf (COTS) equipment by several generations. MPSoC technology integrates all computational power required by next-generation space exploration science instruments onto a single chip. This paper describes the automation and the integration of hardware/software co-verification tools (LiveCheckHSI) for the Xilinx Zynq-based SoC control and data handling avionics system that have been developed at the Jet Propulsion Laboratory (JPL) for next generation imaging spectrometers (NGIS). The NGIS acquires and compresses images in real-time, in addition to programming the spectrometer (frame rate, exposure time), focus step motor, and heaters and reporting telemetry. The SoC and MPSoC technologies combining heterogeneous supercomputing capability with high performance FPGAs allow for the integration of verification tools such as LiveCheckHSI into the deployment device itself. This approach allows to by-pass the traditional independent Ground Support Equipment (GSE) systems for acquisition, processing, and visualization of hyperspectral images which can be prohibitive in terms of hardware and software. This capability also permits on-chip verification for flight systems and extends embedded testing
and verification tools beyond the pre-implementation formal verification and post-implementation such as VIVADO HardwareDebug / Chipscope with hardware in the loop. The first part of the paper describes the automation tools integrated into the remote LiveCheckHSI such as AutoSweep, Recording and Scripting capability. The second part of the paper describes the deployment of LiveCheckHSI into the MPSoC device itself using Yocto and Qt C++ framework
Comparison of varied complexity models simulating recharge at the field scale
Numerical models are frequently used for the regional quantification of groundwater recharge. However there is a wide
range of potential models available that represent the land surface with varying degrees of complexity, but which are rarely
tested against observations at the field scale. We compared four models that simulate potential recharge at four intensively
monitored sites with different vegetation and soil types in two adjacent catchments. These models were: Penman–Grindley,
UN Food and Agricultural Organization, SPAtial Distributed Evaporation and Joint UK Land Environment Simulator.
Standardized, unoptimized land surface datasets and pertinent literature were used for parameterization to reflect practice in
regional water resource management and planning in the UK. The models were validated against soil moisture observations
at all sites, as well as observed transpiration and interception and calculated total evaporation over a year at a woodland
site. Soil moisture observations were generally reproduced well, but there were significant differences in how the models
apportioned precipitation through the hydrological cycle. This demonstrates that soil moisture data alone are not a good
diagnostic for groundwater recharge models. Significant differences in potential recharge were produced by models at both
grassland sites, although simulated average annual potential recharge varied by only 15% at the grassland site on permeable
soil. At the woodland sites, soil moisture contents were reproduced least accurately, and there were large differences in
potential recharge at both woodland sites. This predominantly resulted from varied and inaccurate simulation of
evaporation, particularly in the form of interception losses where this was explicitly represented in models. Differences in
model structure, such as runoff representation, and parameter selection also influenced all results. Hydrological Processes ©
2013 John Wiley & Sons, Ltd
Thigh-length compression stockings and DVT after stroke
Controversy exists as to whether neoadjuvant chemotherapy improves survival in patients with invasive bladder cancer, despite randomised controlled trials of more than 3000 patients. We undertook a systematic review and meta-analysis to assess the effect of such treatment on survival in patients with this disease
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Reimagine fire science for the anthropocene.
Acknowledgements: The authors thank Kathy Bogan with CIRES Communications for the figure design and creation, and two anonymous reviewers for comments on an earlier version of the manuscript.Funder: National Center for Atmospheric Research 12|0; DOI: https://doi.org/10.13039/100005323Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused climate change and radical changes to ecosystems, fire danger is increasing, and fires are having increasingly devastating impacts on human health, infrastructure, and ecosystem services. Increasing fire danger is a vexing problem that requires deep transdisciplinary, trans-sector, and inclusive partnerships to address. Here, we outline barriers and opportunities in the next generation of fire science and provide guidance for investment in future research. We synthesize insights needed to better address the long-standing challenges of innovation across disciplines to (i) promote coordinated research efforts; (ii) embrace different ways of knowing and knowledge generation; (iii) promote exploration of fundamental science; (iv) capitalize on the "firehose" of data for societal benefit; and (v) integrate human and natural systems into models across multiple scales. Fire science is thus at a critical transitional moment. We need to shift from observation and modeled representations of varying components of climate, people, vegetation, and fire to more integrative and predictive approaches that support pathways toward mitigating and adapting to our increasingly flammable world, including the utilization of fire for human safety and benefit. Only through overcoming institutional silos and accessing knowledge across diverse communities can we effectively undertake research that improves outcomes in our more fiery future
Recommended from our members
Reimagine fire science for the anthropocene.
Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused climate change and radical changes to ecosystems, fire danger is increasing, and fires are having increasingly devastating impacts on human health, infrastructure, and ecosystem services. Increasing fire danger is a vexing problem that requires deep transdisciplinary, trans-sector, and inclusive partnerships to address. Here, we outline barriers and opportunities in the next generation of fire science and provide guidance for investment in future research. We synthesize insights needed to better address the long-standing challenges of innovation across disciplines to (i) promote coordinated research efforts; (ii) embrace different ways of knowing and knowledge generation; (iii) promote exploration of fundamental science; (iv) capitalize on the "firehose" of data for societal benefit; and (v) integrate human and natural systems into models across multiple scales. Fire science is thus at a critical transitional moment. We need to shift from observation and modeled representations of varying components of climate, people, vegetation, and fire to more integrative and predictive approaches that support pathways toward mitigating and adapting to our increasingly flammable world, including the utilization of fire for human safety and benefit. Only through overcoming institutional silos and accessing knowledge across diverse communities can we effectively undertake research that improves outcomes in our more fiery future
Recommended from our members
Reimagine fire science for the anthropocene
Acknowledgements: The authors thank Kathy Bogan with CIRES Communications for the figure design and creation, and two anonymous reviewers for comments on an earlier version of the manuscript.Funder: National Center for Atmospheric Research 12|0; DOI: https://doi.org/10.13039/100005323Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused climate change and radical changes to ecosystems, fire danger is increasing, and fires are having increasingly devastating impacts on human health, infrastructure, and ecosystem services. Increasing fire danger is a vexing problem that requires deep transdisciplinary, trans-sector, and inclusive partnerships to address. Here, we outline barriers and opportunities in the next generation of fire science and provide guidance for investment in future research. We synthesize insights needed to better address the long-standing challenges of innovation across disciplines to (i) promote coordinated research efforts; (ii) embrace different ways of knowing and knowledge generation; (iii) promote exploration of fundamental science; (iv) capitalize on the “firehose” of data for societal benefit; and (v) integrate human and natural systems into models across multiple scales. Fire science is thus at a critical transitional moment. We need to shift from observation and modeled representations of varying components of climate, people, vegetation, and fire to more integrative and predictive approaches that support pathways toward mitigating and adapting to our increasingly flammable world, including the utilization of fire for human safety and benefit. Only through overcoming institutional silos and accessing knowledge across diverse communities can we effectively undertake research that improves outcomes in our more fiery future
Recommended from our members
Reimagine fire science for the anthropocene
Acknowledgements: The authors thank Kathy Bogan with CIRES Communications for the figure design and creation, and two anonymous reviewers for comments on an earlier version of the manuscript.Funder: National Center for Atmospheric Research 12|0; DOI: https://doi.org/10.13039/100005323Fire is an integral component of ecosystems globally and a tool that humans have harnessed for millennia. Altered fire regimes are a fundamental cause and consequence of global change, impacting people and the biophysical systems on which they depend. As part of the newly emerging Anthropocene, marked by human-caused climate change and radical changes to ecosystems, fire danger is increasing, and fires are having increasingly devastating impacts on human health, infrastructure, and ecosystem services. Increasing fire danger is a vexing problem that requires deep transdisciplinary, trans-sector, and inclusive partnerships to address. Here, we outline barriers and opportunities in the next generation of fire science and provide guidance for investment in future research. We synthesize insights needed to better address the long-standing challenges of innovation across disciplines to (i) promote coordinated research efforts; (ii) embrace different ways of knowing and knowledge generation; (iii) promote exploration of fundamental science; (iv) capitalize on the “firehose” of data for societal benefit; and (v) integrate human and natural systems into models across multiple scales. Fire science is thus at a critical transitional moment. We need to shift from observation and modeled representations of varying components of climate, people, vegetation, and fire to more integrative and predictive approaches that support pathways toward mitigating and adapting to our increasingly flammable world, including the utilization of fire for human safety and benefit. Only through overcoming institutional silos and accessing knowledge across diverse communities can we effectively undertake research that improves outcomes in our more fiery future