检索结果-南通市图书馆

modelling the smart farm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Information Processing in Agriculture 2017年第3期4卷 179-187页

作者： michael J.O’Grady gregory m.P.O’Hare School of Computer Science University College DublinBelfieldDublin 4Ireland Earth Institute University College DublinBelfieldDublin 4Ireland

Smart farming envisages the harnessing of Information and Communication Technologies as an enabler of more efficient,productive,and profitable farming *** technologies do not suffice on their own;rather they must be judiciously combined to deliver meaningful information in near ***-support tools incorporating models of disparate farming activities,either on their own or in combination with other models,offer one popular approach;exemplars include GPFARm,APSIm,GRAZPLAN amongst many *** models tend to be generic in nature and their adoption by individual farmers is *** technologies offer an opportunity to remedy this situation;farm-specific models that can reflect near real-time events become tractable using such *** on the development,and application of farm-specific models is at a very early *** paper thus presents an overview of models within the farming enterprise;it then reviews the state-of the art in smart technologies that promise to enable a new generation of enterprise-specific models that will underpin future smart farming enterprises.

关键词： Smart agriculture modelling Sensing Internet of things

Plaque herniation after stenting the culprit lesion with myocardial bridging in ST elevation myocardial infarction: A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiology 2020年第2期12卷 91-96页

作者： Jeffrey ma gregory m Gustafson Xuming Dai Division of Cardiology Theresa and Eugene M.Lang Center for Research and Education New York Presbyterian–Queens Hospital

BACKGROUND myocardial bridging(mB)is increasingly recognized to stimulate atherogenesis,which may contribute to an acute coronary *** the coronary segment with mB has been recognized to have an increased risk of in-stent restenosis,stent fracture and coronary *** safety and efficacy of stenting the culprit lesion with overlaying mB in ST elevation myocardial infarction(STEmI)as primary reperfusion therapy has not been *** SUmmARY We reported a patient who presented with inferior STEmI with a culprit lesion of an acute thrombotic occlusion in the right coronary artery and thrombolysis and thrombin inhibition in myocardial infarction 0 *** the stent placement during primary percutaneous coronary intervention,intravascular ultrasound revealed mB overlying the stented segment where heavy atherosclerotic plaque were *** due to the combination of plaque herniation or prolapse caused by mB,as well as local increased inflammation and thrombogenicity,acute stent thrombosis occurred at this region,which led to acute stent *** patient required an emergent repeated cardiac catheterization and placing a second layer of stent to enhance the radial strength and reduce the inter-strut *** Plaque herniation or prolapse after stenting a mB segment in STEmI is a potential etiology for acute stent failure.

关键词： Case report ST elevation myocardial infarction myocardial bridging Plaque herniation Plaque prolapse Intravascular ultrasound Acute stent thrombosis

Introducing RiverProfileApp,a web application for near-global,exploratory,longitudinal river profile analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2022年第1期15卷 679-689页

作者： gregory A.Ruetenik Czech Academy of Sciences Institute of GeophysicsPragueCzech Republic

River profile analysis has been used extensively in the earth sciences. Commonly,exploration of river profiles requires downloading and processing Digital Elevation models (DEms) for specific areas,which limits the scope of exploratory analysis. Presented here is a web application designed to analyze river profiles at 90m resolution at a near-global scale. The app allows users to quickly query downstream or upstream from selected points anywhere within ±60 degrees latitude,in order to interactively analyze corresponding river profiles. River profile analysis can be performed in both distance and χ space,where χ is a metric that is proportional to the presumed steady-state shape of the river profile. River locations are based on the HydroSHEDS 90m drainage direction grid,as well as custom computed D8 drainage direction and void-filled SRTm DEms. RiverProfileApp is open source,and although currently it is designed as an exploratory tool,more functions can be easily added via community contributions and/or from existing toolsets. It is available from ***.

关键词： River profile analysis geomorphology big data science communication

GA-BP Air Quality Evaluation method Based on Fuzzy Theory

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, materials & Continua 2019年第1期58卷 215-227页

作者： ma Ning Jianhe Guan Pingzeng Liu Ziqing Zhang gregory m.P.O’Hare China University of Geoscience Beijing100083China Shandong Agricultural University Taian271018China Shandong Vocational Institute of Fashion Technology Taian271000China University College Dublin(UCD) BelfieldDublin999014Ireland

With the rapid development of China’s economy,the scale of the city has been continuously expanding,industrial enterprises have been increasing,the discharge of multiple pollutants has reached the top of the world,and the environmental problems become more and more *** air pollution problem is particularly *** quality has become a daily concern for *** order to control air pollution,it is necessary to grasp the air quality situation in an all-round *** is necessary to evaluate air *** results of air quality evaluation can help people know more about air *** this paper,refers to previous research results and different evaluation methods,combined with artificial neural network,fuzzy theory,genetic algorithm,GA-BP hybrid algorithm based on fuzzy theory is proposed to evaluate air *** the same time,for the problem that the two-grade standard of air quality annual evaluation is not suitable for practical application,the four-grade standard for annual air quality evaluation has been proposed,and its practicality has been verified through *** setting contrast experiments and comparing the air quality evaluation model based on standard BP algorithm,it is proved that the fuzzy GA-BP evaluation model is better than the standard BP model,both in efficiency and accuracy.

关键词： Air quality evaluation fuzzy theory genetic algorithm BP neural network

Validity of the French version of Catquest-9SF and use of an electronic notepad for entering patient-reported outcome measures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eye and Vision 2021年第1期8卷 92-100页

作者： gregory Katz Alexandra Rouquette François Lignereux Thierry mourgues michel Weber mats Lundström Chair of Innovation&Value in Health University of Paris School of MedicineParisFrance Value-Based Health Care Consortium ParisFrance Prom-Time ParisFrance Service de SantéPublique et d’Épidémiologie AP-HP Paris-SaclayLe Kremlin-BicêtreFrance Centre de recherche enÉpidémiologie et Santédes Populations InsermUniversitéParis-SaclayVillejuifFrance Ophtalmologie Chénieux Polyclinique de LimogesLimogesFrance Institut Ophtalmologique Sourdille-Atlantique Elsan SantéAtlantiqueNantesFrance Ophthalmology Department Centre Hospitalier-Universitaire de NantesNantesFrance Department of Clinical Sciences OphthalmologyFaculty of MedicineLund UniversityLundSweden

Background:The Catquest-9SF questionnaire is a patient reported outcome measure that quantifies the visual benefits from cataract *** purpose of this study was to translate and adapt the Catquest-9SF questionnaire for France,to assess its psychometric properties via Rasch analysis,and to assess its validity when completed using an electronic ***:The Catquest-9SF questionnaire was translated following the guidelines of the International Society for Pharmacoeconomics and Outcomes ***-9SF and clinical data were collected from patients before and after routine cataract *** questionnaire data were collected via an electronic *** analysis was performed to assess psychometric properties,and sensitivity to change was analysed for patients with complete paired pre-and post-operative ***:A complete filled-in preoperative questionnaire was obtained for 848 *** analysis showed good precision(person separation:2.32,person reliability:0.84),ordered category probability curves,no item misfit,and *** respondents were slightly more able than the level of item difficulty(targeting:−1.12 logits).Sensitivity was analysed on 211 paired questionnaires,and the postoperative questionnaires showed a clear ceiling *** effect size was *** use of an electronic notepad for completing the questionnaire worked out very well after some ***:The French version of Catquest-9SF has good psychometric properties and is suitable for use in French-speaking *** use of the Catquest-9SF questionnaire in an electronic format showed good validity.

关键词： Cataracts Patient-related outcome measures Quality of life Questionnaire Value-based health care Catquest-9SF

The methodology of Probe Design with Better Resolution and Less Resistive Donut Probe to Achieve the Best Performance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2009年第3期6卷 239-245页

作者： mohammad Ismail Talukder Pepe Siy gregory Auner Department of Electrical and Computer Engineering Wayne State University

Probes are the interface between microsystems and *** ideal interface is one-to-one *** various research groups have been able to establish some sort of interfaces after many years of research,they are very *** are millions in numbers,whereas the prostheses successfully built so far have only a few hundred probes at *** an ef- fective interface is still far *** we have micro-and nano-technologies,we couldn't build a prosthesis with an effective *** reasons behind it are the type of probe being used and the poor design of the *** address this problem,we developed a methodology to design a probe and an array of probes with better resolution and less resistive donut *** methodology helps us to design a probe optimizing all the *** presented our methodology through a design that is capable of 70 μm penetration inside the *** tissue heating by our designed probe is only 0.411 °*** also characterized the donut probe,which could be used by any research group to design a donut probe of their specific need.

关键词： donut probe resolution methodology retina prosthesis probe design

Regeneration patterns of key pine species in a mixed-pine forest indicate a positive effect of variable retention harvesting and an increase in recruitment with time

在线全文

学校读者我要写书评

暂无评论

Forest Ecosystems 2020年第4期7卷 659-671页

作者： Priscilla A.Nyamai P.Charles Goebel R.gregory Corace III David m.Hix Natural Resources management Program Grand Valley State University1 Campus DrAllendaleMI 49401USA. Department of Forest Rangelandand Fire SciencesUniversity of Idaho875 Perimeter Drive MS 1133MoscowID 83844USA. Alpena-montmorency Conservation District 1900 M-32 WAlpenaMI 49707USA. School of Environment and Natural Resources The Ohio State University2021 Coffey RoadColumbusOH 43210USA.

Background:many fire-dependent forests have experienced significant declines in species,structural,and functional *** changes are attributed in part to traditional management approaches that were dominated by even-aged regeneration methods such as *** retention harvesting(VRH)is an ecologically based forestry practice that involves retention of some mature overstory trees and other biological structures in the postharvest stand to emulate the effects of natural disturbance *** this study,we examined the effect of a VRH treatment on recruitment of historically dominant pine species and understory vegetation twoand six years after its implementation in a naturally regenerated mixed pine forest in the Upper Peninsula of michigan,***:We found greater regeneration of red pine(Pinus resinosa L.)and eastern white pine(Pinus strobus L.)in VRH stands compared to the unharvested *** red pine recruitment was very low during the first 2 years,both species increased significantly from year two to year *** responses for the two species did not differ significantly between the aggregated and dispersed retention *** also found high recruitment of deciduous tree species,consisting primarily of sprouts,and red pine exhibited a negative correlation with these ***,time,and the interaction of treatment and time were significant factors in red pine *** had a strong effect on the understory vegetation,with significant decreases in shrubs and ferns over ***:The results suggest that VRH enhanced recruitment of red pine and eastern white pine and that this recruitment increased with *** identify competition from sprouts and unfavorable seedbed conditions as the main factors that limited recruitment of red pine during the first 2 *** reduce competing vegetation and improve seedbed conditions,we suggest following the VRH with a prescribed fire,mechanically removing s

关键词： Variable retention harvesting Aggregated retention Dispersed retention mixed-pine forest Pinus resinosa Pinus strobus

Lactate as a regulator of iron homeostasis

在线全文

学校读者我要写书评

暂无评论

Life metabolism 2023年第5期2卷 8-11页

作者： gregory J.Anderson David m.Frazer Iron metabolism Laboratory QIMR Berghofer Medical Research InstituteBrisbaneQueensland 4006Australia molecular Nutrition Laboratory QIMR Berghofer Medical Research InstituteBrisbaneQueensland 4006Australia

The key metabolic intermediate lactate can increase expression of the liver-derived peptide hepcidin,the central regulator of body iron homeostasis.A new paper by Liu et *** that lactate achieves this by binding to and activating soluble adenylyl cyclase,thereby increasing cellular cyclic adenosine monophosphate(cAmP)and enhancing signaling through the bone morphogenetic protein(BmP)pathway to modulate hepcidin expression.

关键词： expression thereby homeostasis

Spectrophotometric analyses of hexahydro-1,3,5-trinitro-1,3,5-triazine(RDX) in water

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2015年第7期27卷 39-44页

作者： Cong Shi Zhonghou Xu Benjamin L.Smolinski Per m.Arienti gregory O'Connor Xiaoguang meng Center for Environmental Systems Stevens Institute of Technology US Army RDECOm-ARDEC

A simple and accurate spectrophotometric method for on-site analysis of royal demolition explosive（RDX） in water samples was developed based on the Berthelot reaction. The sensitivity and accuracy of an existing spectrophotometric method was improved by：replacing toxic chemicals with more stable and safer reagents; optimizing the reagent dose and reaction time; improving color stability; and eliminating the interference from inorganic nitrogen compounds in water samples. Cation and anion exchange resin cartridges were developed and used for sample pretreatment to eliminate the effect of ammonia and nitrate on RDX analyses. The detection limit of the method was determined to be 100 μg/L. The method was used successfully for analysis of RDX in untreated industrial wastewater samples. It can be used for on-site monitoring of RDX in wastewater for early detection of chemical spills and failure of wastewater treatment systems.

关键词： Berthelot reaction Exchange resins RDXS pectrophotometric method Water