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Remote sensing and analysis of tropical cyclones:Current and emerging satellite sensors

Tropical Cyclone Research and Review 2023年第4期12卷 267-293页

作者： Lucrezia Ricciardulli Brian Howell Christopher R.Jackson Jeff Hawkins joe courtney Ad Stoffelen Sebastian Langlade Chris Fogarty Alexis Mouche William Blackwell Thomas Meissner Julian Heming Brett Candy Tony McNally Masahiro Kazumori Chinmay Khadke Maria Ana Glaiza Escullar Remote Sensing Systems Santa RosaCAUSA Joint Typhoon Warning Center Pearl HarborHawaiiUSA Global Ocean Associates(supporting NOAA/NESDIS STAR) AlexandriaVAUSA University of Wisconsin Cooperative Institute for Meteorological Satellite StudiesMadisonWIUSA Bureau of Meteorology PerthAustralia Royal Netherlands Meteorological Institute(KNMI) De BiltNetherlands Tropical Cyclone/Regional Specialized Meteorological Center Meteo FranceReunionFrance Canadian Hurricane Center(CHC) DartmouthNova ScotiaCanada University Brest CNRSIRDIfremerLaboratoire d’Oceanographie Physique et Spatiale(LOPS)IUEMBrestFrance MIT Lincoln Laboratory LexingtonMAUSA Met Office ExeterUK European Centre for Medium-Range Weather Forecasts ReadingUK Japan Meteorological Agency(JMA) TokyoJapan India Meteorological Department(IMD) New DelhiIndia Philippine Atmospheric Geophysical and Astronomical Services Administration(PAGASA)Diliman Quezon CityPhilippines

This article describes recent advances in the capability of new satellite sensors for observing Tropical Cyclones(TC)fine structure,wind field,and temporal *** article is based on a World Meteorological Organization(WMO)report prepared for the 10th International Workshop on Tropical Cyclones(IWTC),held in Bali in December 2022,and its objective is to present updates in TC research and operation every four *** we focus on updates regarding the most recent space-based TC observations,and we cover new methodologies and techniques using polar orbiting sensors,such as C-band synthetic aperture radars(SARs),L-band and combined C/X-band radiometers,scatterometers,and microwave imagers/*** additionally address progress made with the new generation of geostationary and small satellites,and discuss future sensors planned to be launched in the next *** then briefly describe some examples on how the newest sensors are used in operations and data assimilation for TC forecasting and research,and conclude the article with a discussion on the remaining challenges of TC space-based observations and possible ways to address them in the near future.

关键词： Tropical cyclones Surface wind Satellite sensors Operations

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Bolstering integrity in environmental data science and machine learning requires understanding socioecological inequity

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 171-179页

作者： joe F.Bozeman III School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA30332USA School of Public Policy Georgia Institute of TechnologyAtlantaGA30332USA

Socioecological inequity in environmental data science—such as inequities deriving from data-driven approaches and machine learning(ML)—are current issues subject to debate and *** is growing consensus around embedding equity throughout all research and design domains—from inception to administration,while also addressing procedural,distributive,and recognitional ***,practically doing so may seem onerous or daunting to *** current perspective helps to alleviate these types of concerns by providing substantiation for the connection between environmental data science and socioecological inequity,using the Systemic Equity Framework,and provides the foundation for a paradigmatic shift toward normalizing the use of equity-centered approaches in environmental data science and ML *** the integrity of environmental data science and ML is just beginning from an equity-centered tool development and rigorous application *** this end,this perspective also provides relevant future directions and challenges by overviewing some meaningful tools and strategies—such as applying the Wells-Du Bois Protocol,employing fairness metrics,and systematically addressing irreproducibility;emerging needs and proposals—such as addressing data-proxy bias and supporting convergence research;and establishes a ten-step path ***,the work that environmental scientists and engineers do ultimately affect the well-being of us all.

关键词： Equity Bias Machine Learning Data Science Justice Systemic Equity

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Enabling Inverter-based Resource Stability Control in Power Systems with High Renewable Penetration

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CSEE Journal of Power and Energy Systems 2023年第3期9卷 1248-1250页

作者： joe H.Chow Rensselaer Polytechnic Institute TroyNY 12180-3590USA

This rapid communication provides the author’s viewpoints on the need to develop grid stability functions for inverter-based resources,in particular,controls to enhance system *** discussion will be focused on transi... 详细信息

关键词： Frequency regulation inverter control time scales transient stability

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DEGREE 3 ALGEBRAIC MINIMAL SURFACES IN THE 3-SPHERE

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Acta Mathematica Scientia 2012年第6期32卷 2065-2084页

作者： joe S.Wang 4 Ricado Ln St.LauisM063124USA

We give a local analytic characterization that a minimal surface in the 3-sphere S3 C R4 defined by an irreducible cubic polynomial is one of the Lawson＇s minimal tori. This provides an alternative proof of the result by Perdomo （Characterization of order 3 algebraic immersed minimal surfaces of S3, Geom. Dedicata 129 （2007）, 23 34）.

关键词： algebraic minimal surface 3-sphere cubic polynomial

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An Epigenetic Perspective on Developmental Regulation of Seed Genes

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Molecular Plant 2009年第4期2卷 610-627页

作者： Heng Zhang joe Ogas Department of Biochemistry Purdue University West Lafayette IN 47907-2063 USA

The developmental program of seeds is promoted by master regulators that are expressed in a seed-specific manner. Ectopic expression studies reveal that expression of these master regulators and other transcriptional regulators is sufficient to promote seed-associated traits, including generation of somatic embryos. Recent work highlights the importance of chromatin-associated factors in restricting expression of seed-specific genes, in particular PcG proteins and ATP-dependent remodelers. This review summarizes what is known regarding factors that promote zygotic and/or somatic embryogenesis and the chromatin machinery that represses their expression. Characterization of the regulation of seedspecific genes reveals that plant chromatin-based repression systems exhibit broad conservation with and surprising differences from animal repression systems.

关键词： Epigenetics chromatin Polycomb group proteins LEAFY COTYLEDON developmental identity Arabidopsis seed development.

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Term-Dependent Confidence Normalisation for Out-of-Vocabulary Spoken Term Detection

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Journal of Computer Science & Technology 2012年第2期27卷 358-375页

作者： Javier Tejedo Simon King joe Frankel Centre for Speech Technology Research University of Edinburgh10 Crichton Street Human Computer Technology Laboratory (HCTLab) School of Computer Engineering and Telecommunication University Autonomous of MadridAvenue Francisco Tomás y Valiente 1128049MadridSpain

An important component of a spoken term detection （STD） system involves estimating confidence measures of hypothesised detections.A potential problem of the widely used lattice-based confidence estimation,however,is that the confidence scores are treated uniformly for all search terms,regardless of how much they may differ in terms of phonetic or linguistic *** problem is particularly evident for out-of-vocabulary （OOV） terms which tend to exhibit high intra-term *** address the impact of term diversity on confidence measures,we propose in this work a term-dependent normalisation technique which compensates for term diversity in confidence *** first derive an evaluation-metric-oriented normalisation that optimises the evaluation metric by compensating for the diverse occurrence rates among terms,and then propose a linear bias compensation and a discriminative compensation to deal with the bias problem that is inherent in lattice-based confidence measurement and from which the Term Specific Threshold （TST） approach *** tested the proposed technique on speech data from the multi-party meeting domain with two state-ofthe-art STD systems based on phonemes and words *** experimental results demonstrate that the confidence normalisation approach leads to a significant performance improvement in STD,particularly for OOV terms with phonemebased systems.

关键词： confidence estimation discriminative model spoken term detection speech recognition

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Geologic data collection and assessment techniques in coal mining for ground control

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International Journal of Mining Science and Technology 2020年第1期30卷 131-139页

作者： Mark Van Dyke Ted Klemetti joe Wickline NIOSH Pittsburgh15236 PAUSA Coronado Global Resources Inc. BeckleyWVUSA

The identification and mitigation of adverse geologic conditions are critical to the safety and productivity of underground coal mining *** anticipate and mitigate adverse geologic conditions,a formal method to evaluate geotechnical factors must be *** mine is unique and has its own separate approach for defining what an adverse geological condition consists *** collection of geologic data is a first critical step to creating a geological database to map these hazards efficiently and *** considerations must be taken into account,such as lithology of immediate roof and floor strata,seam height,gas and oil wells,faults,depressions in the mine floor(water)and increases in floor elevation(gas),overburden,streams and horizontal stress directions,amongst many other *** geologic data is collected,it can be refined and integrated into a database that can be used to develop maps showing the trend,orientation,and extent of the adverse geological *** information,delivered in a timely manner,allows mining personnel to be proactive in mine planning and support implementations,ultimately reducing the impacts of these *** paper covers geologic exploratory methods,data organization,and the value of collecting and interpreting geologic information in coal mines to enhance safety and *** implementation of the methods described above has been proven effective in predicting and mitigating adverse geologic conditions in underground coal *** re-evaluation of data collection methods,geologic interpretations,mapping procedures,and communication techniques ensures continuous improvement in the accuracy of predictions and mitigation of adverse geologic *** a concise record of the work previously done to track geologic conditions at a mine will allow for the smoothest transition during employee turnover and *** refinements and standardization of data collection methods,

关键词： Roof control Database Mapping Hazards Geology

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CONVERGENCE OF BACKPRIOPAG ATION WITH MOMENTUM FOR NETWORK A RCHITECTURES WITH SKIP CONNECTIONS

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Journal of Computational Mathematics 2021年第1期39卷 147-158页

作者： Chirag Agarwal joe Klobusicky Dan Schonfeld Department of Electrical and Cormputer Engineering University of Illinois at ChicagoChicagoIL 60607USA Department of Mathematical Sciences Rensselaer Polytechnic InstituteTroyNY 12180USA Department of Electrical and Computer Engineering University of Illinois at ChicagoChicagoIL 60607USA

We study a class of deep neural networks with architectures that form a directed acyclic graph(DAG).For backpropagation defined by gradient descent with adaptive momentum,we show weights converge for a large class of nonlinear activation functions.'The proof generalizes the results of Wu et al.(2008)who showed convergence for a feed-forward network with one hidden *** an example of the effectiveness of DAG architectures,we describe an example of compression through an AutoEncoder,and compare against sequential feed-forward networks under several metrics.

关键词： Backpropagation with momentum Autoencoders Directed acyclic graphs.

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Occult sporadic insulinoma: Localization and surgical strategy

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World Journal of Gastroenterology 2008年第5期14卷 657-665页

作者： Bassam Abboud joe Boujaoude Department of General Surgery Hotel Dieu de France Hospital Faculty of Medicine Saint-Joseph University Beirut 166830 Lebanon Department of Gastroenterology Hotel Dieu de France Hospital Faculty of Medicine Saint-Joseph University Beirut 166830 Lebanon

Insulinomas continue to pose a diagnostic challenge to physicians, surgeons and radiologists alike. Most are intrapancreatic, benign and solitary. Biochemical diagnosis is obtained and imaging techniques to localize lesions continue to evolve. Surgical resection is the treatment of choice. Despite all efforts, an occult insulinoma (occult insulinoma refers to a biochemically proven tumor with indeterminate anatomical site before operation) may still be encountered. New localization preoperative techniques decreases occult cases and the knowledge of the site of the mass before surgery allows to determine whether enucleation of the tumor or pancreatic resection is likely to be required and whether the tumor is amenable to removal via a laparoscopic approach. In absence of preoperative localization and intraoperative detection of an insulinoma, blind pancreatic resection is not recommended.

关键词： Insulinoma Occult CT scan Endoscopic ultrasonography Surgery Laparoscopy

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Volume Optimisation of Multi-stable Origami Bellows for Deployable Space Habitats

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Acta Mechanica Solida Sinica 2023年第4期36卷 514-530页

作者： Mengzhu Yang joe Defillion Fabrizio Scarpa Mark Schenk Department of Aerospace Engineering University of BristolBristol BS81TRUK

Origami bellows are formed by folding flat sheets into closed cylindrical structures along predefined *** the bellows unfold,the volume of the origami structure will change significantly,offering potential for use as inflatable deployable *** paper presents a geometric study of the volume of multi-stable Miura-ori and Kresling bellows,focusing on their application as deployable space *** habitats would be compactly stowed during launch,before expanding once in *** internal volume ratio between different deployed states is investigated across the geometric design *** a case study,the SpaceX Falcon 9 payload fairing is chosen for the transportation of space *** stowed volume and effective deployed volume of the origami space habitats are calculated to enable comparison with conventional habitat *** designs for the deployment of Miura-ori and Kresling patterned tubular space habitats are obtained using particle swarm optimisation(PSO)*** with significant volume expansion can be found in both patterns,with the Miura-ori patterns achieving higher volume expansion due to their additional radial deployment.A multi-objective PSO(MOPSO)is adopted to identify trade-offs between volumetric deployment and radial expansion ratios for the Miura-ori pattern.

关键词： Optimisation Origami bellows Space habitat Origami volume

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