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15篇 您的检索式:作者名="Tim Clark"
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1Unique,Persistent,Resolvable:Identifiers as the Foundation of FAIR显示文摘The FAIR principles describe characteristics intended to support access to and reuse of digital artifacts in the scientific research ecosystem.Persistent,globally unique identifiers,resolvable on the Web,and associated with a set of additional descriptive metadata,are foundational to FAIR data.Here we describe some basic principles and exemplars for their design,use and orchestration with other system elements to achieve FAIRness for digital research objects.Nick Juty Sarala M.Wimalaratne Stian Soiland-Reyes John Kunze Carole A.Goble Tim Clark 2020Data Intelligence2020,2,1:11
2Prograde and retrograde growth of monazite in migmatites:An example from the Nagercoil Block,southern India显示文摘Data from a migmatised metapelite raft enclosed within charnockite provide quantitative constraints on the pressure-temperature-time[P-T-t) evolution of the Nagercoil Block at the southernmost tip of peninsular India.An inferred peak metamorphic assemblage of garnet,K-feldspar.sillimanite,plagioclase,magnetite,ilmenite,spinel and melt is consistent with peak metamorphic pressures of 6-8 kbar and temperatures in excess of 900℃.Subsequent growth of cordierite and biotite record high-temperature retrograde decompression to around 5 kbar and 800 C.SHRIMP U-Pb dating of magmatic zircon cores suggests that the sedimentary protoliths were in part derived from felsic igneous rocks with Palaeoproterozoic crystallisation ages.New growth of metamorphic zircon on the rims of detrital grains constrains the onset of melt crystallisation,and the minimum age of the metamorphic peak,to around560 Ma.The data suggest two stages of monazite growth.The first generation of REE-enriched monazite grew during partial melting along the prograde path at around 570 Ma via the incongruent breakdown of apatite.Relatively REE-depleted rims,which have a pronounced negative europium anomaly,grew during melt crystallisation along the retrograde path at around 535 Ma.Our data show the rocks remained at suprasolidus temperatures for at least 35 million years and probably much longer,supporting a long-lived high-grade metamorphic history.The metamorphic conditions,timing and duration of the implied clockwise P-T-t path are similar to that previously established for other regions in peninsular India during the Ediacaran to Cambrian assembly of that part of the Gondwanan supercontinent.Tim E.Johnson Chris Clark Richard J.M.Taylor M.Santosh Alan S.Collins 2015Geoscience Frontiers2015,6,3:8
3FAIR Data Reuse-the Path through Data Citation显示文摘One of the key goals of the FAIR guiding principles is defined by its final principle-to optimize data sets for reuse by both humans and machines.To do so,data providers need to implement and support consistent machine readable metadata to describe their data sets.This can seem like a daunting task for data providers,whether it is determining what level of detail should be provided in the provenance metadata or figuring out what common shared vocabularies should be used.Additionally,for existing data sets it is often unclear what steps should be taken to enable maximal,appropriate reuse.Data citation already plays an important role in making data findable and accessible,providing persistent and unique identifiers plus metadata on over 16 million data sets.In this paper,we discuss how data citation and its underlying infrastructures,in particular associated metadata,provide an important pathway for enabling FAIR data reuse.Paul Groth Helena Cousijn Tim Clark Carole Goble 2020Data Intelligence2020,2,1:8
4Real - time 3 - D metrology for aerospace manufacture 显示文摘Tim Clarke Richard C ooeh 1999Sensor Review Volume1999,19,2:1
5Culture-independent molecular techniques for soil microbial ecology显示文摘Penny R. Hirsch Tim H. Mauchline Ian M. Clark 2010Soil Biology and Biochemistry2010,,6:1
6X-ray diffraction study into the effects of liming on the structure of collagen显示文摘Clark A M Tim J W Craig J K 2006Biomacromolecules2006,7,8:1
7The CN2 Induction Algorithm显示文摘Peter Clark Tim Niblett 1989Machine Learning1989,,4:1
8Predictive Value of 18-Fluoro-Deoxy-Glucose-Positron Emission Tomography (18F-FDG-PET) in the Identification of Responders to Chemoradiation Therapy for the Treatment of Locally Advanced Esophageal Cancer显示文摘Edward A. Levine Michael R. Farmer Paige Clark Girish Mishra Coty Ho Kim R. Geisinger Susan A. Melin James Lovato Tim Oaks A William Blackstock 2006Annals of Surgery2006,,4:1
9X-ray diffraction study into the effects of liming on the structure of collagen 显示文摘Clark A M Tim J W Craig J K 2006Biomaeromolecules2006,7,:1
10The CN2 Induction Algorithm显示文摘Peter Clark Tim Niblett 1989Machine Learning1989,,4:1
11The CN2 Induction algorithm显示文摘Peter Clark Tim Niblett 1989Machine Learning Journal1989,,3:1
12The CN2 Induction Algorithm显示文摘Peter Clark Tim Niblett 1989Machine Learning1989,,4:1
13Culture-independentmolecular techniques for soil microbial ecology显示文摘Penny R Hirsch Tim H Mauchline Ian M Clark 2010Soil Biology&Bio-chemistry2010,42,:1
14User Association in Ultra-Dense Small Cell Dynamic Vehicular Networks: A Reinforcement Learning Approach显示文摘Network densification is envisioned as one of the key enabling technologies in the next generation and beyond wireless networks to satisfy the demand of high coverage and capacity whilst deliver an ultra-reliable low latency communication services especially to the users on the move.One of the fundamental tasks in wireless networks is user association.In the case of ultra-dense vehicular networks,due to the dense deployment and small coverage of the eNodeBs,there may be more than one eNodeB that may simultaneously satisfy the conventional maximum radio signal strength user association criteria.In addition to this,the spatial-temporal vehicle distribution in dynamic environments contribute significantly towards the rapidly changing radio environment that substantially impacts the user association,therefore,the network performance and user experience.This paper addresses the problem of user association in dynamic environments by proposing intelligent user association approach,variable-reward,quality-aware Q-learning(VR-QAQL)that has an ability to strike a balance between the number of handovers per transmission and system performance whilst a guaranteed network quality of service is delivered.The VR-QAQL technique integrates the control-theoretic concepts and the reinforcement learning approach in an LTE uplink,using the framework of an urban vehicular environment.The algorithm is assessed using large-scale simulation on a highway scenario at different vehicle speeds in an urban setting.The results demonstrate that the proposed VR-QAQL algorithm outperforms all the other investigated approaches across all mobility levels.Shipra Kapoor David Grace Tim Clarke 2019Journal of Communications and Information Networks2019,4,1:0
15Reappraising the P-T evolution of the Rogaland-Vest Agder Sector,southwestern Norway显示文摘The Rogaland-Vest Agder Sector of southwestern Norway comprises high-grade metamorphic rocks intruded by voluminous plutonic bodies that include the ~1000 km^2 Rogaland Igneous Complex(RIC).New petrographic observations and thermodynamic phase equilibria modelling of three metapelitic samples collected at various distances(30 km,10 km and ~ 10 m) from one of the main bodies of RIC anorthosite were undertaken to assess two alternative P-T-t models for the metamorphic evolution of the area.The results are consistent with a revised two-phase evolution.Regional metamorphism followed a clockwise P-T path reaching peak conditions of ~ 850-950 ℃ and ~7-8 kbar at ~1035 Ma followed by high-temperature decompression to ~5 kbar at ~950 Ma,and resulted in extensive anatexis and melt loss to produce highly residual rocks.Subsequent emplacement of the RIC at ~930 Ma caused regional-scale contact metamorphism that affected country rocks 10 km or more from their contact with the anorthosite.This thermal overprint is expressed in the sample proximal to the anorthosite by replacement of sillimanite by coarse intergrowths of cordierite plus spinel and growth of a second generation of garnet,and in the intermediate(10 km) sample by replacement of sapphirine by coarse intergrowths of cordierite,spinel and biotite.The formation of late biotite in the intermediate sample may suggest the rocks retained small quantities of melt produced by regional metamorphism and remained at temperatures above the solidus for up to 100 Ma.Our results are more consistent with an accretionary rather than a collisional model for the Sveconorwegian Orogen.Eleanore Blereau Tim E.Johnson Chris Clark Richard J.M.Taylor Peter D.Kinny Martin Hand 2017Geoscience Frontiers2017,8,1:0
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