检索结果-南通市图书馆

The Soft X-ray Imager(SXI)on the SMILE Mission

在线全文

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2024年第1期8卷 5-14页

作者： S.Sembay A.L.Alme D.Agnolon T.Arnold A.Beardmore A.Belén Balado Margeli C.Bicknell C.Bouldin G.Branduardi-Raymont T.Crawford j.P.Breuer T.Buggey G.Butcher R.Canchal j.A.Carter A.Cheney Y.Collado-Vega H.Connor T.Crawford N.Eaton C.Feldman C.Forsyth T.Frantzen G.Galgóczi j.Garcia G.Y.Genov C.Gordillo H-P.Gröbelbauer M.Guedel Y.Guo M.Hailey D.Hall R.Hampson j.Hasiba O.Hetherington A.Holland S-Y.Hsieh M.W.j.Hubbard H.jeszenszky M.jones T.Kennedy K.Koch-Mehrin S.Kögl S.Krucker K.D.Kuntz C.Lakin G.Laky O.Lylund A.Martindale j.Miguel Mas Hesse R.Nakamura K.Oksavik N.Østgaard H.Ottacher R.Ottensamer C.Pagani S.Parsons P.Patel j.Pearson G.Peikert F.S.Porter T.Pouliantis B.H.Qureshi W.Raab G.Randal A.M.Read N.M.M.Roque M.E.Rostad C.Runciman S.Sachdev A.Samsonov M.Soman D.Sibeck S.Smit j.Søndergaard R.Speight S.Stavland M.Steller TianRan Sun j.Thornhill W.thomas K.Ullaland B.Walsh D.Walton C.Wang S.Yang School of Physics and Astronomy University of LeicesterLeicesterLE17RHUK Space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard Space Science Laboratory University College LondonDorkingRH56NTUK Centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK Birkeland Centre for Space Science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway University of Vienna A-1010 ViennaAustria Space Research Institute Austrian Academy of SciencesA-8042 GrazAustria National Institute of Aerospace Technology MadridSpain ESTEC European Space Agency2201 AZ NoordwijkNetherlands State Key Laboratory of Space Weather National Space Science CentreBeijing 100190China University of Applied Sciences and Arts Northwestern Switzerland CH-5210 WindischSwitzerland Koegl Space GmbH CH-8157 DielsdorfSwitzerland Space Acoustics GmbH CH-8157 DielsdorfSwitzerland Zurich University of Applied Sciences 8400 WinterhurSwitzerland Genov Solutions N-5172 LoddefjordNorway STM Engineering N-5165 LaksevagNorway john Hopkins University Applied Physics Laboratory MD 20723USA NASA/Goddard Space Flight Centre MD 20771USA Center for Space Physics Boston UniversityBostonMA 02215USA Department of Theoretical Physics and Astrophysics Masaryk University60177 BrnoCzech Republic Institute of Physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100045China Centro de Astrobiologia(CAB) CSIC-INTAMadridSpain

The Soft X-ray Imager(SXI)is part of the scientific payload of the Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)*** is a joint science mission between the European Space Agency(ESA)and the Chinese Academy of Sciences(CAS)and is due for launch in *** is a compact X-ray telescope with a wide field-of-view(FOV)capable of encompassing large portions of Earth’s magnetosphere from the vantage point of the SMILE *** is sensitive to the soft X-rays produced by the Solar Wind Charge eXchange(SWCX)process produced when heavy ions of solar wind origin interact with neutral particles in Earth’s *** provides a mechanism for boundary detection within the magnetosphere,such as the position of Earth’s magnetopause,because the solar wind heavy ions have a very low density in regions of closed magnetic field *** sensitivity of the SXI is such that it can potentially track movements of the magnetopause on timescales of a few minutes and the orbit of SMILE will enable such movements to be tracked for segments lasting many *** is led by the University of Leicester in the United Kingdom(UK)with collaborating organisations on hardware,software and science support within the UK,Europe,China and the United States.

关键词： Soft X-ray Imaging micropore optics large area CCD

Evaluation of a model for providing cost effective,accessible continuing education to the forensic science community

在线全文

学校读者我要写书评

暂无评论

Forensic Sciences Research 2021年第4期6卷 224-230页

作者： thomas j.Gluodenis Department of chemistry&Physics Lincoln UniversityLincoln UniversityPAUSA

This study presents a detailed model and its subsequent assessment for the development and optimized delivery of continuing education for the forensic science *** continuing education is on the rise as this modality of content dissemination allows for accessibility,convenience,and *** model,which includes an educational needs assessment,gap analysis,online content delivery and archival,was evaluated through the launch of a global training event/symposium *** four-year study of over 6000 participants representing>75 countries provides empirical support for the model based upon registration/attendance data and participant self-assessment *** practices are identified relative to content and format,operational excellence,technology,and financing of the *** directions along with opportunities to further enhance the model are also discussed.

关键词： Forensic sciences continuing education educational requirements online web-based certification

Solid-state emissive biphenylene bridged bisaroyl-S,N-ketene acetals as distinct aggregation-induced enhanced emitters and fluorometric probes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Aggregate

Aggregate 2021年第5期2卷 179-184页

作者： Lukas Biesen thomas j.j.Muller Institut fur Organische und Makromolekulare Chemie Heinrich-Heine-Universitat DusseldorfDüsseldorfGermany

Biphenylene bridged bisaroyl-S,N-ketene acetals can be readily synthesized by a one-pot Masuda borylation-Suzuki arylation sequence,thus,yielding a library of 20 bisaroyl-S,N-ketene acetals with tunable solid-state emission and aggregationinduced enhanced emission characteristics depending on the para substituents in the starting *** applications as fluorometric probe of alcoholic beverages are outlined.

关键词： aggregation-induced emission aroyl-S N-ketene acetals liquor sensors one-pot reaction solid-state

Patient selection essential in optimizing the benefit of radical prostatectomy for patients with organ-confined prostate cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian journal of Andrology 2011年第6期13卷 789-790页

作者： Matthew j Resnick thomas j Guzzo The Division of Urology The Hospital of the University of Pennsylvania Philadelphia PA 19104 USA

P rostate cancer is the most common noncutaneous malignancy in the United States and is a highly prevalent disease worldwide in industrialized nations.1 Prostate cancer is also a leading cause of cancer related mortality in the United States with an estimated 32 050 deaths in 2010. If one were to simply look at the raw mortality data,

关键词： Prostate cancer noncutaneous appropriate treatment decisions

Neuromodulator interactions and spinal cord injury in lamprey

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2018年第4期13卷 643-644页

作者： David Parker thomas j.McClelland Department of Physiology Neuroscience and DevelopmentUniversity of Cambridge

Neuromodulation is mediated by neurotransmitters that typically act on G-protein-coupled *** can confer behavioural flexibility by modifying the functional properties of anatomically hard-wired neural *** neuromodulators generally have divergent cellular and synaptic effects（Harris-Warrick and johnson,2010）,and different modulators,

关键词： Figure Neuromodulator interactions and spinal cord injury in lamprey

A-posteriori error estimation for second order mechanical systems

在线全文

学校读者我要写书评

暂无评论

Acta Mechanica Sinica 2012年第3期28卷 854-862页

作者： thomas Ruiner jrg Fehr Bernard Haasdonk Peter Eberhard Institute of Engineering and Computational Mechanics University of StuttgartPfaffenwaldring 970569 StuttgartGermany Institute of Applied Analysis and Numerical Simulation University of StuttgartPfaffenwaldring 5770569 StuttgartGermany

One important issue for the simulation of flexible multibody systems is the reduction of the flexible bodies de- grees of freedom. As far as safety questions are concerned knowledge about the error introduced by the reduction of the flexible degrees of freedom is helpful and very important. In this work, an a-posteriori error estimator for linear first order systems is extended for error estimation of me- chanical second order systems. Due to the special second order structure of mechanical systems, an improvement of the a-posteriori error estimator is achieved. A major advan- tage of the a-posteriori error estimator is that the estimator is independent of the used reduction technique. Therefore, it can be used for moment-matching based, Gramian matrices based or modal based model reduction techniques. The capability of the proposed technique is demon- strated by the a-posteriori error estimation of a mechanical system, and a sensitivity analysis of the parameters involved in the error estimation process is conducted.

关键词： A-posteriori error estimator. Flexible multibodysystems Model reduction

Pyogenic liver abscess:An audit of 10 years’experience

在线全文

学校读者我要写书评

暂无评论

World journal of Gastroenterology 2011年第12期17卷 1622-1630页

作者： Tony CY Pang thomas Fung jaswinder Samra thomas j Hugh Ross C Smith Upper Gastrointestinal Surgical Unit Royal North Shore HospitalUniversity of SydneySt Leonards NSW 2065Australia

AIM:To describe our own experience with pyogenic liver abscesses over the past 10 years and investigate the risk factors associated with failure of initial percutaneous ***:A retrospective study of records of 63 PLA patients presenting between 1998 and 2008 to Australian tertiary referral centre,were *** and hydatid abscesses were ***,clinical,radiological,and microbiological characteristics,as well as surgical/radiological interventions,were ***:Sixty-three patients(42 males,21 females) aged 65(±14) years[mean±(SD) ]had prodromal symptoms for a median(interquartile range;IQR) of 7(5-14) *** 59%of patients were febrile at presentation;however,the serum C-reactive protein was elevated in all 47 in whom it was *** function tests were non-specifically abnormal.67%of patients had a solitary abscess,while 32%had>3 abscesses with a median(IQR) diameter of 6.3(4-9) *** organisms were:Streptococcus milleri 25%,Klebsiella pneumoniae 21%,and Escherichia coli 16%.A presumptive cryptogenic cause was most common (34%).Four patients died in this series:one from sepsis,two from advanced cancer,and one from acute myocardial *** initial procedure was radiological aspiration±drainage in 54 and surgery in two patients.17%underwent surgical management during their *** hypoalbuminaemia[mean (95%CI) :32(29-35) g/L vs 28(25-31) g/L,P=0.045] on presentation was found to be the only factor related to failure of initial percutaneous therapy on univariate ***:PLA is a diagnostic challenge,because the presentation of this condition is *** antibiotics and radiological drainage in the first instance allows resolution of most PLAs;However,a small proportion of patients still require surgical drainage.

关键词： Pyogenic liver abscess Image guided drainage Surgical drainage C-reactive protein Hypoalbuminaemia

Smart Grid Wide-Area Transmission System Visualization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineering 2015年第4期1卷 466-474页

作者： thomas j.Overbye james Weber University of Illinois at Urbana-Champaign PowerWorld Corporation

The installation of vast quantities of additional new sensing and communication equipment, in conjunction with building the computing infrastructure to store and manage data gathered by this equipment, has been the fi rst step in the creation of what is generically referred to as the "smart grid" for the electric transmission system. With this enormous capital investment in equipment having been made, attention is now focused on developing methods to analyze and visualize this large data set. The most direct use of this large set of new data will be in data visualization. This paper presents a survey of some visualization techniques that have been deployed by the electric power industry for visualizing data over the past several years. These techniques include pie charts, animation, contouring, time-varying graphs, geographic-based displays, image blending, and data aggregation techniques. The paper then emphasizes a newer concept of using word-sized graphics called sparklines as an extremely eff ective method of showing large amounts of timevarying data.

关键词： electric power systems wide-area visualization power flow transient stability smart grid sparklines

A Fast Accurate Boundary IntegralMethod for Potentials on Closely Packed Cells

在线全文

学校读者我要写书评

暂无评论

Communications in Computational Physics 2013年第9期14卷 1073-1093页

作者： Wenjun Ying j.thomas Beale Shanghai jiao Tong University Department of Mathematics and Institute of Natural SciencesMinhangShanghai 200240P.R.China Duke University Department of MathematicsDurhamNC 27708-0320USA

Boundary integral methods are naturally suited for the computation of harmonic functions on a region having inclusions or cells with different material ***,accuracy deteriorates when the cell boundaries are close to each *** present a boundary integralmethod in two dimensions which is specially designed tomaintain second order accuracy even if boundaries are arbitrarily *** uses a regularization of the integral kernel which admits analytically determined corrections to maintain *** boundaries with many components we use the fast multipolemethod for efficient *** compute electric potentials on a domain with cells whose conductivity differs from that of the surrounding *** first solve an integral equation for a source term on the cell interfaces and then find values of the potential near the interfaces via *** we use a Poisson solver to extend the potential to a regular grid covering the entire region.A number of examples are *** demonstrate that increased refinement is not needed to maintain accuracy as interfaces become very close.

关键词： Laplace equation boundary integral method fast multipole method