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Growing Operational Use of FY-3 Data in the ECMWF System

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Advances in Atmospheric Sciences 2021年第8期38卷 1285-1298页

作者： Niels BORMANN David DUNCAN stephen english Sean HEALY Katrin LONITZ Keyi CHEN Heather LAWRENCE Qifeng LU European Centre for Medium-range Weather Forecasts Reading RG29AXUnited Kingdom International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of the Chinese Academy of Sciences Beijing 100049China Department of Atmospheric Sciences Chengdu University of Information TechnologyChengdu 610225China National Satellite Meteorological Centre China Meteorological AdministrationBeijing 10081China

This paper reviews the data quality and impact of observations from the FY-3 satellite series used operationally in the ECMWF system. This includes data from the passive microwave radiometers MWHS-1, MWHS-2 and MWRI, as well as observations from the radio occultation receiver GNOS. Evaluations against background equivalents show that the quality of the observations is broadly comparable to that of similar instruments on other polar-orbiting satellites, even though biases for the passive microwave observations can be somewhat larger and more complex for some channels. An observing system experiment shows that the FY-3 instruments jointly contribute significantly to the forecast skill in the ECMWF system. Positive impact of up to 2% is seen for most variables out to the day-2 forecasts over hemispheric scales, with significant benefits for total column water vapor or for temperature and wind in the stratosphere out to day 4.

关键词： FY-3 satellite series assimilation forecast impact calibration/validation

Hybrid versus global thermostatting in molecular-dynamics simulation of methane-hydrate crystallisation

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Chinese Journal of Chemical Engineering 2019年第9期27卷 2180-2188页

作者： Niall J.english Mohammad Reza Ghaani School of Chemical and Bioprocess Engineering University College Dublin

Molecular-dynamics(MD)simulations have been performed for the growth of a spherical methane-hydrate nano-crystallite,surrounded by a supersaturated water–methane liquid phase,using both a hybrid and globalsystem thermostatting *** was found that hybrid thermostatting led to more sluggish growth and the establishment of a radial temperature profile about the spherical hydrate crystallite,in which the growing crystal phase is at a higher temperature than the surrounding liquid phase in the interfacial region,owing to latent-heat *** addition,Onsager’s-hypothesis fluctuation–dissipation analysis of fluctuations in the number of crystal-state water molecules at the interface shows slower growth.

关键词： Molecular dynamics Clathrate hydrates Crystallisation Thermostatting Radial temperature profile Fluctuation–dissipation

A Smoothed Particle Hydrodynamics method for vertical axis turbine design and assessment

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Journal of Hydrodynamics 2024年第5期36卷 991-1007页

作者： Nicolas Hanousek Bikash Ranabhat Aaron english Reza Ahmadian Hydro-environmental Research Centre School of EngineeringCardiff UniversityCardiffUK Department of Engineering and Architecture University of ParmaParmaItaly

With the global demand for more electricity,and for that electricity to be produced using low-carbon generation,a turbine was designed to extract energy from underutilised *** mechanism by which the turbine operates makes it highly demanding to represent using mesh-based numerical schemes,resulting in a need to investigate alternative *** Smoothed Particle Hydrodynamics(SPH)software,DualSPHysics,utilising the Chrono solid body solver,was used to represent the turbine as a free body in a 2-D environment allowing for evaluation of the free-spin velocity to be *** aim of this being to ascertain the applicability of SPH to the modelling of vertical axis turbines with multiple moving parts,and also develop an understanding of the design *** model was found to compare favourably with lab results,showing that a vertical axis turbine may be represented in this *** resilience of the device,a design driver and previously untested mode,was assessed by considering post-damage *** this,future flume study and parallel numerical modelling can guide this or other vertical axis turbines towards improved performance.

关键词： Smoothed Particle Hydrodynamics(SPH) DualSPHysics vertical-axis turbine hydrokinetic energy renewable energy

Magnetic ferrite/carbonized cotton fiber composites for improving electromagnetic absorption properties at gigahertz frequencies

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Journal of Materials Science & Technology 2021年第27期86卷 127-138页

作者： Sateesh Bandaru Narashima Murthy Ravindra Kulkarni Niall J.english School of Chemical and Bioprocess Engineering University College DublinBelfieldDublin 4Ireland Scinva Chemicals and Pharmaceuticals Pvt Ltd Kumbalagodu Industrial AreaBangaloreIndia BVDU’s Poona College of Pharmacy ErandawanePuneIndia

Ferrite/carbon composited materials,especially the bio-derived composited materials possessing both environmental friendliness and outstanding microwave absorption performance,attract numerous attentions for solving the"electromagnetic problem"in the Gigahertz frequency *** this work,we demonstrate a bio-derived ferrite/carbon material by compositing functional carbonized cotton fibers(CCFs)and Fe_(3)O_(4)nanoparticles with optimized microwave-absorption *** adjusting the carbonization conditions systematically,the Fe_(3)O_(4)loading contents and the microwave absorption properties can be varied simultaneously-and,indeed,optimized and *** CCFs-Fe_(3)O_(4)composites exhibited a minimum reflection-loss capacity RL(d B)of-56.8 d B at 10.9 GHz with a thickness of 1.67 mm,and its effective absorption bandwidth(RL(d B)<-20 d B)was found to broaden to 7.1 *** characterizations,coupled with microstructure analyses,revealed that the enhancement in microwave absorption was triggered by the different microstructures of CCFs-Fe_(3)O_(4)composites-attributable to the different carbonization *** different conditions result in different amounts of Fe_(3)O_(4)attachment sites and lead to the enhancement of dielectric polarization at localized *** present work of bio-derived ferrite/carbon materials has important implications in understanding structure-performance relationships in dielectric-magnetic materials,and,meanwhile,could well be extended to a microwave-absorber design approach.

关键词： Electromagnetic absorption Bio-derived material Dielectric-magnetic composite Interfacial polarization

Anal carcinoma-exploring the epidemiology,risk factors,pathophysiology,diagnosis,and treatment

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World Journal of Experimental Medicine 2024年第3期14卷 20-38页

作者： Kevan J english Department of Medicine Division of Gastroenterology&HepatologySaint George’s University School of MedicineSaint George 33334Saint GeorgeGrenada

Anal carcinoma is a relatively rare tumor that accounts for approximately 2%of gastrointestinal malignancies and less than 7%of anorectal *** anal tumors originate between the anorectal junction and the anal *** factors for the disease include human papillomavirus infection,human immunodeficiency virus,tobacco use,immunosuppression,female sex,and older *** pathogenesis of anal carcinoma is believed to be linked to human papillomavirusrelated inflammation,leading to dysplasia and progression to *** cell carcinoma is the most common type of anal tumor,with an annual incidence of approximately 1 to 2 per 100000 *** regarding anal cancer has emerged over ***,chemoradiation therapy remains the mainstay approach for early localized *** with metastatic disease are treated with systemic therapy,and salvage surgery is reserved for disease recurrence following *** article aims to provide background information on the epidemiology,risk factors,pathology,diagnosis,and current trends in the management of anal *** directions are briefly discussed.

关键词： Anal cancer Squamous cell carcinoma Chemoradiation therapy Human papillomavirus Immunosuppression

Transabdominal intestinal ultrasound and its parameters used in the assessment of pediatric inflammatory bowel disease

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World Journal of Clinical Pediatrics 2024年第3期13卷 137-140页

作者： Kevan J english Department of Medicine-Pediatrics St.George's University School of MedicineSaint George's 33334Saint GeorgeGrenada

This article extends on the use of transabdominal intestinal ultrasound in diagnosing pediatric inflammatory bowel *** of the more essential features used in assessing bowel inflammation,such as hyperemia and wall thickness on ultrasound,are expanded upon from the publication on imaging and endoscopic tools in pediatric inflammatory bowel disease.

关键词： Inflammatory bowel disease Intestinal ultrasound Limberg score Hyperemia Bowel wall thickness

The Making of english:A Story Of Three Invasions and A Cultural Revolution

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三明学院学报 2000年第3期18卷 48-53页

作者： Zhang Jingfeng (Departmentof english,Sanming Teachers College)

How come the english language develops into whatwe now call Modern english?This article intends to find outsome of itsorigins and reasonsfrom the pointof wview ofthe historical backgrounds thatresults in the development.

关键词： language history invasions christianity

Foraging site recursion by forest elephants Elephas maximus borneensis

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Current Zoology 2014年第4期60卷 551-559页

作者： Megan english Marc ANCRENAZ Graeme GILLESPIE Benoit GOOSSENS Sen NATHAN Wayne LINKLATER Centre for Biodiversity and Restoration Ecology School of Biological Sciences New Kirk Building Kelburn Parade Kelburn Campus Victoria University of Wellington 6012 New Zealand Hutan Kinabatangan Orangutan Conservation Project and Elephant Conservation Unit Sukau Kinabatangan Sabah Malaysia Zoology Department University of Melbourne Parkville Victoria 3010 Australia Danau Girang Field Centre c/o Sabah Wildlife Department Wisma Muis 88100 Kota Kinabalu Sabah Malaysia Organisms and Environment Division School of Biosciences Cardiff University Sir Martin Evans Building Museum AvenueCardiff CF10 3AX UK Sabah Wildlife Department Wisma Muis 88100 Kota Kinabalu Sabah Malaysia Centre for African Conservation Ecology Nelson Mandela Metropolitan University Port Elizabeth South Africa

Recursion by herbivores is the repeated use of the same site or plants. Recursion by wild animals is rarely investigated but may be ubiquitous. Optimal foraging theory predicts site recursion as a function of the quality of the site, extent of its last use, and time since its last use because these influence site resource status and recovery. We used GPS collars, behaviour and site sampling to investigate recursion to foraging sites for two elephant Elephas maximus borneensis herds in the Lower Kinabatangan Wildlife Sanctuary, Borneo, over a 12 month period. Recursion occurred to 48 out of 87 foraging sites and was most common within 48 hours or between 151-250 days, indicating two different types ofrecursion. Recursion was more likely to occur if the site had previously been occupied for longer. Moreover, the time spent at a site at recursion was the same as the time spent at the site on the first occasion. The number of days that had passed between the first visit and recursion was also positively correlated with how much time was spent at the site at recursion. Habitat type also influenced the intensity of site-use, with more time spent at recursion within riverine/open grass areas along forest margins compared to other habitat types. Recursion is a common behaviour used by the elephants and its pattern suggests it may be a foraging strategy for revisiting areas of greater value. The qualities of recursion sites might usefully be incorporated into landscape management strategies for elephant conservation in the area [Current Zoology 60 （4）： 551-559, 2014].

关键词： Asian elephant Recursion Site re-use Herbivory Megaherbivore Optimal foraging

An english Teacher's Training In the Secondary School _ _ Preparation of knowledge

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三明学院学报 2000年第1期18卷 93-98页

作者： Jiang Xiaozhong english Department,Sanming Teacher’s College

A teacher’s training isa long and complex *** should be trained in two systems.

关键词： english teacher training preparatiop