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Current state of the art and future directions: Augmented reality data visualization to support decision-making

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Visual Informatics 2024年第2期8卷 80-105页

作者： Mengya Zheng David Lillis abraham G.campbell School of Computer Science University College DublinDublinIreland

Augmented Reality(AR),as a novel data visualization tool,is advantageous in revealing spatial data patterns and data-context ***,recent research has identified AR data visualization as a promising approach to increasing decision-making efficiency and *** a result,AR has been applied in various decision support systems to enhance knowledge conveying and comprehension,in which the different data-reality associations have been constructed to aid ***,how these AR visualization strategies can enhance different decision support datasets has not been reviewed *** given the rise of big data in the modern world,this support is critical to decision-making in the coming *** AR to embed the decision support data and explanation data into the end user’s physical surroundings and focal contexts avoids isolating the human decision-maker from the relevant *** the decision-maker’s contexts and the DSS support in AR is a difficult *** paper outlines the current state of the art through a literature review in allowing AR data visualization to support *** facilitate the publication classification and analysis,the paper proposes one taxonomy to classify different AR data visualization based on the semantic associations between the AR data and physical *** on this taxonomy and a decision support system taxonomy,37 publications have been classified and analyzed from multiple *** of the contributions of this literature review is a resulting AR visualization taxonomy that can be applied to decision support *** with this novel tool,the paper discusses the current state of the art in this field and indicates possible future challenges and directions that AR data visualization will bring to support decision-making.

关键词： Augmented reality Decision support Data visualization Taxonomy

Semantics Analytics of Origin-Destination Flows from Crowd Sensed Big Data

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Computers, Materials & Continua 2019年第7期61卷 227-241页

作者： Ning Cao Shengfang Li Keyong Shen Sheng Bin Gengxin Sun Dongjie Zhu Xiuli Han Guangsheng Cao abraham campbell College of Computer Information and Engineering Nanchang Institute of TechnologyNanchangChina College of Information Engineering Sanming UniversitySanmingChina School of Data Science and Software Engineering Qingdao UniversityQingdaoChina School of Computer Science and Technology Harbin Institute of TechnologyWeihaiChina Public Teaching Department Qingdao Technical CollegeQingdaoChina School of Computer Science University College DublinDublinIreland

Monitoring,understanding and predicting Origin-destination(OD)flows in a city is an important problem for city planning and human ***-GPS traces,acted as one kind of typical crowd sensed data,it can be used to mine the semantics of OD *** this paper,we firstly construct and analyze a complex network of OD flows based on large-scale GPS taxi traces of a city in *** spatiotemporal analysis for the OD flows complex network showed that there were distinctive patterns in OD *** based on a novel complex network model,a semantics mining method of OD flows is proposed through compounding Points of Interests(POI)network and public transport network to the OD flows *** propose method would offer a novel way to predict the location characteristic and future traffic conditions accurately.

关键词： Origin-destination(OD)flows semantics analytics complex network big data analysis

Snow-powered research on utility-scale wind turbine flows

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Acta Mechanica Sinica 2020年第2期36卷 339-355页

作者： Jiarong Hong Aliza abraham St.Anthony Falls Laboratory University of MinnesotaMinneapolisMN 55414USA Department of Mechanical Engineering University of MinnesotaMinneapolisMN 55455USA

This paper provides a review of the general experimental methodology of snow-powered flow visualization and super-large-scale particle image velocimetry(SLPIV),the corresponding field deployments and major scientific findings from our work on a 2.5 MW utility-scale wind turbine at the Eolos field *** field measurements were conducted to investigate the incoming flow in the induction zone and the near-wake flows from different *** has been shown that these snow-powered measurements can provide sufficient spatiotemporal resolution and fields of view to characterize both qualitatively and quantitatively the incoming flow,all the major coherent structures generated by the turbine(e.g.,blade,nacelle and tower vortices,etc.)as well as the development and interaction of these structures in the near *** work has further revealed several interesting behaviors of near-wake flows(e.g.,wake contraction,dynamic wake modulation,meandering and deflection of the nacelle wake,etc.),and their connections with constantly-changing inflows and turbine operation,which are uniquely associated with utility-scale *** findings have demonstrated that the near wake flows,though highly complex,can be predicted with substantial statistical confidence using supervisory control and data acquisition(SCADA)and structural response information readily available from current utility-scale *** knowledge can be potentially incorporated into wake development models and turbine controllers for wind farm optimization in the future.

关键词： Wind turbine Utility-scale Wake Snow visualization PIV

Testosterone deficiency and cardiovascular mortality

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Asian Journal of Andrology 2015年第1期17卷 26-31,I0007页

作者： abraham Morgentaler Men's Health Boston Harvard Medical School Boston MA USA.

New concerns have been raised regarding cardiovascular （CV） risks with testosterone （T） therapy （TTh）. These concerns are based primarily on two widely reported retrospective studies. However, methodological flaws and data errors invalidate both studies as credible evidence of risk. One showed reduced adverse events by half in T-treated men but reversed this result using an unproven statistical approach. The authors subsequently acknowledged serious data errors including nearly 10% contamination of the dataset by women. The second study mistakenly used the rate of T prescriptions written by healthcare providers to men with recent myocardial infarction （MI） as a proxy for the naturally occurring rate of Mh Numerous studies suggest T is beneficial, including decreased mortality in association with TTh, reduced MI rate with TTh in men with the greatest MI risk prognosis, and reduced CV and overall mortality with higher serum levels of endogenous T. Randomized controlled trials have demonstrated benefits of TTh in men with coronary artery disease and congestive heart failure. Improvement in CV risk factors such as fat mass and glycemic control have been repeatedly demonstrated in T-deficient men treated with T. The current evidence does not support the belief that TTh is associated with increased CV risk or CV mortality. On the contrary, a wealth of evidence accumulated over several decades suggests that low serum T levels are associated with increased risk and that higher endogenous T, as well as TTh itself, appear to be beneficial for CV mortality and risk.

关键词： cardiovascular mortality myocardial infarction risk stroke testosterone

A numerical study of the impacts of sediment composition on debris flows

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Journal of Hydrodynamics 2022年第4期34卷 620-633页

作者： Abiola abraham Adebiyi Peng Hu Institute of Port Coastaland Ofshore EngineeringOcean CollegeZhejiang UniversityZhoushan 316021China

Debris flows in their natural environments are made up of different sediment sizes,even though they are often considered to be uniform in numerical *** prompted the present study to investigate the behaviors of debris flows with nonuniform sediment composition.A model is developed to investigate nonuniform debris flows and the characteristic behavior of their *** model’s framework of mass and momentum equations and mass exchange with the bed are solved using the shock-capturing finite volume *** model is first tested with a uniform sediment laboratory experiment,where there is a good *** model is then tested against two flume experiments with different bed water content and *** model performed well in both cases,however,the slight underprediction in the second case can be associated with the complexity of debris flows which may not be fully captured by physical *** model is further used to investigate different compositions of debris flows including mixed grain sizes,mean size,fine and coarse sediment size,and no erosion/*** modeling of the mixed grain sizes produced a more accurate result,and this justifies the consideration of nonuniform sediment sizes in the numerical studies of debris *** enhance the understanding of frontal coarsening and rear fining in experimental debris flow,the model is also used to investigate cases with different sediment compositions,and the model was able to reproduce the frontal coarsening and rear fining observed in experiments.

关键词： Debris flows numerical modeling finite volume method(FVM) sediment composition erosion debris coarsening

Numerical Investigation of Effect of Porosity and Fuel Inlet Velocity on Diffusion Filtration Combustion

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Journal of Thermal Science 2021年第4期30卷 1278-1288页

作者： TAROKH Ali LAVRENTEV Artem MANSOURI abraham Department of Mechanical Engineering Lakehead UniversityThunder BayP7B5E1Canada Department of Mechanical Engineering Higher College of TechnologyDBMDubai 15825UAE

Methane-air diffusion filtration combustion in a radiative round-jet burner was numerically investigated in this *** purpose of this study was focused on the effects of porous media porosity and gas velocity on temperature distribution and CO and NO_(x)*** chemical kinetics was used where air and methane were assumed to be at their stoichiometric ratio,while thermo-physical properties were varied per the solid matrix porosity *** characteristics were evaluated based on conduction and radiation as the two primary heat transfer modes within the solid *** simulations were carried out based on a packed bed with 3 mm alumina *** show that combustion temperature increases while the temperature gradient decreases with the increase in porosity,yielding higher NO_(x),and lower CO ***,the combustion temperature is the lowest and most uniformly distributed with 1 m/s and 3 m/s gas velocities,wherewith 3 m/s gas velocity,combustion occurs outside of the porous *** corresponding NO_(x)and CO emissions are the lowest with 1 m/s gas velocity and increase with the increase in gas velocity from 1 m/s to 10m/s.

关键词： non-premixed diffusion filtration combustion methane-air combustion porous media numerical simulation

Physiological adaptations of small mammals to desert ecosystems

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Integrative Zoology 2009年第4期4卷 357-366页

作者： Hagit SCHWIMMER abraham HAIM Department of Biology The University of HaifaHaifaIsrael

Adaptations of animals to the xeric environment have been studied in various taxonomic groups and across several *** the impressive data that have been accumulated,the focus in most of these studies is mainly on the significance of one variable at a ***,we attempt to integrate between responses of several physiological systems,challenged by increasing diet and water salinity and extreme temperatures,acquired in different studies of thermo and osmo-regulatory adaptations,of small rodents,to the xeric *** have shown differen-tial thermoregulatory responses to increased dietary salinity,which were attributed to habitat and habits of the relevant *** the thermoregulatory studies,a potential adaptive significance of low metabolic rate was *** an evolutionary point of view,the most important adaptation is in the timing of reproduction,as it enables the transfer of genetic properties to the next generation in an unpredictable ecosystem,where repro-duction might not occur every *** in this aspect show that increased dietary salinity,through an increase in vasopressin plasma levels,plays an important role as a regulator of the reproductive *** assume that the amount of food existing in the habitat and the amount of reserves in the animal in the form of white adipose tissue are important for *** affects all studied physiological responses,emphasizing the impor-tance of pre-acclimation to seasonal *** summarize the existing data and suggest neuro-endocrine pathways,which have a central role in these adaptations by affecting thermoregulation,osmoregulation and repro-duction to create the optimal response to xeric *** hypotheses can be used as the basis for future studies.

关键词： adaptation osmoregulation thermoregulation vasopressin xeric environment.

Riding the rails-different modes for RNA complex transport in axons

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Neural Regeneration Research 2022年第12期17卷 2664-2665页

作者： Ofri abraham Mike Fainzilber Departments of Biomolecular Sciences and Molecular Neuroscience Weizmann Institute of ScienceRehovotIsrael

Neurons are highly polarized cells with axons that innervate distant *** distance of subcellular compartments from the nucleus requires sophisticated transport mechanisms and local action of vital processes for proper function and rapid responses to local stimuli(Terenzio et al.,2017).This is partially achieved by transport of mRNAs to subcellular locations and regulation of local translation for axonal growth,branching,synaptic plasticity,and regeneration,among other *** synthesized proteins support neuronal survival,and axonal development,maintenance,and growth(Rishal and Fainzilber,2014;Dalla Costa et al.,2021).Thus,understanding the mechanisms that promote RNA transport to subcellular locations in neurons will contribute to the development of novel strategies to enhance axon regeneration and survival.

关键词： branching polarized plasticity

Bright artificial light at night is associated with increased body mass,poor reproductive success and compromised disease tolerance in Australian budgerigars(Melopsittacus undulatus)

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Integrative Zoology 2019年第6期14卷 589-603页

作者： Itay MALEK abraham HAIM Department of Evolutionary and Environmental Biology University of HaifaMount CarmelHaifaIsrael The Israeli Center for Interdisciplinary Research in Chronobiology University of HaifaHaifaIsrael

Artificial light at night(ALAN)can cause circadian disruption and result in adverse behavioral and ecological effects in free-living birds,but studies on captive pet birds as companion animals have been *** studied the effects of exposure to bright ALAN on body mass,melatonin sulfate levels,reproduction and disease severity in Australian budgerigars(Melopsittacus undulatus)kept in *** the experiment,birds were kept under outdoor temperature,humidity and natural photoperiod from September to December.A total of 48 birds were equally split into 4 groups(6 mating pairs each)and concurrently exposed to ALAN of 200 lux with different duration(0,30,60 and 90 min).Monthly observations were recorded for all dependent parame*** exposure increased mass gain and suppressed melatonin levels in a dose-dependent manner,especially during *** addition,ALAN exposure in all duration groups decreased egg production and reduced hatchability from 61%±14%in the ALAN-unexposed control group to 0%in the ALAN-exposed *** severity was also found to increase in line with the duration of ALAN *** captive ***latus,ALAN exposure was demonstrated to affect photoperiodic regulation with subsequent excess mass gain and reproduction impairment,and increased susceptibility to infections plausibly through duration dose-dependent suppression of *** the best of our knowledge,this is the first study to demonstrate a possible association between acute bright ALAN of increasing duration and both natural development of infections as well as reproductive cessation in captive *** findings could be used to improve breeding conditions of captive birds.

关键词： avian model circadian disruption disease susceptibility light pollution stress responses