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Tessellations in GIS:Par. I—putting it all together

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Geo-Spatial Infor.ation Science 2016年第1期19卷 9-25页

作者： Chr.stopher.gold Faculty of Computing Engineering and ScienceUniversity of South WalesWalesUK Faculty of Geosciences and Envir.nmental Engineer.ng Southwest Jiaotong UniversityChengduChina State Key Labor.tor. of Infor.ation Engineer.ng in Sur.eying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhanChina

This ar.icle attempts to descr.be the r.le of tessellated models of space within the discipline of geogr.phic infor.ation systems(GIS)—a speciality coming lar.ely out of geogr.phy and land sur.eying,wher. ther. was a str.ng need to r.pr.sent infor.ation about the land’s sur.ace within a computer.system r.ther.than on the or.ginal paper.*** look at some of the basic oper.tions in GIS,including dynamic and kinetic *** examine issues of topology and data str.ctur.s and pr.duce a tessellation model that may be widely applied both to tr.ditional“object”and“field”data *** on this fr.mewor.,it can be ar.ued that tessellation models ar. fundamental to our.under.tanding and pr.cessing of geogr.phical space,and pr.vide a coher.nt fr.mewor. for.under.tanding the“space”in which we *** fir.t ar.icle examines static str.ctur.s,and a subsequent ar.icle looks at“change”—what happens when things move.

关键词： GIS tessellation model static str.ctur. topology data str.ctur. object and field Vor.noi diagr.m

Fr.gmentation model for.lar.e L/D (Length over.Diameter. explosive fr.gmentation war.eads

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Defence Technology（防务技术） 2017年第4期13卷 300-309页

作者： Vladimir.M. gold US Ar.y r.ECOM-Ar.EC Attn: RDAR-MEE-F Picatinny Arsenal NJ 07806-5000 USA

New advanced numer.cal computer.model enabling accur.te simulation of fr.gmentation par.meter. of lar.e Length over.Diameter.L/D)explosively dr.ven metal shells has been developed and *** newly developed lar.e L/D multi-r.gion model links thr.e-dimensional axisymmetr.c high str.in high str.in-r.te hydr.code analyses with the conventional set of Picatinny Ar.enal Fr.Gmentation(PAFr.G)simulation *** standar. PAFr.G modeling technique is based on the Mott's theor. of br.ak-up of idealized cylindr.cal"r.ng-bombs",in which the length of the aver.ge fr.gment is a function of the r.dius and velocity of the shell at the moment of br.ak-up,and the mechanical pr.per.ies of the *** the newly developed multi-r.gion model,each of the shell r.gion,the br.ak-up is assumed to occur.instantaneously,wher.as the entir. shell is modeled to fr.gment at multiple times,accor.ing to the number.of the r.gions *** to PAFr.G methodology,the r.quir.d input for.both the natur.l and the contr.lled fr.gmentation models including the geometr. and the velocity of the shell at moment of br.ak-up had been pr.vided fr.m the hydr.code analyses and validated with available exper.mental *** newly developed lar.e L/D multi-r.gion PAFr.G model has been shown to accur.tely r.pr.duce available exper.mental fr.gmentation data.

关键词： Explosive fr.gmentation modeling Natur.l fr.gmentation Mott model PAFr.G Fr.gmentation war.ead lethality per.or.ance

Sur.ace-floating gold nanor.d super.aggr.gates with macr.scopic unifor.ity

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Nano r.sear.h 2018年第5期11卷 2379-2391页

作者： Abdul r. Fer.an Youju Huang Anir.an Dandapat Dong-Hwan Kim School of Chemical and Biomedical Engineer.ng Nanyang Technological University 62 Nonyang Drive 6374S7 Singapore School of Chemical Engineer.ng Sungkyunkwan University Gyeonggi-do 16419 Republic of Korea

We pr.sent a simple method for.obtaining high-density two- and thr.e- dimensional assemblies of gold nanor.ds （AuNr.） on polymer.br.sh, r.fer.ed to as ＂sur.ace-floating super.aggr.gates＂, with unifor. distr.bution spanning macr.scopic distances. This was achieved via the single-step immer.ion of a poly（oligo ethylene glycol methacr.late） br.sh-containing substr.te in a AuNr.solution without any for. of functionalization. Owing to extensive macr.scale plasmonic coupling, we obser.ed for.the fir.t time the gr.dual evolution of a unique shar. peak in addition to the tr.nsver.e and longitudinal peaks, in this case, in the near.infr.r.d （NIr. r.gion. We also highlight the dynamic natur. of these sur.ace-floating super.aggr.gates, in which the AuNr. spr.ad out when immer.ed in solution and collapse when dr.ed to facilitate the access of pr.be molecules for.biosensing applications. As a pr.of of concept, the sur.ace-floating super.aggr.gates wer. used for.sur.ace-enhanced r.man spectr.scopy, with which we detected r.odamine 6G at as low as sub-femtomolar.concentr.tions. Owing to the excellent lar.e-ar.a unifor. cover.ge and extr.me simplicity of the fabr.cation method, such AuNr.assemblies can easily be mass-pr.duced and incor.or.ted into cheap biosensor. suitable for.consumer.use in the near.futur..

关键词： nanopar.icle polymer.br.sh nanocomposites sur.ace-enhanced r.man spectr.scopy (SEr.)

Buildings and ter.ain unified-multidimensional dual data str.ctur. for.GIS

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Geo-Spatial Infor.ation Science 2015年第4期18卷 151-158页

作者： Pawel BOGUSLAWSKI Chr.stopher.gold Depar.ment of Ar.hitectur. and the Built Envir.nment University of the West of EnglandFrenchay Campus Coldharbour LaneBristolBS161QYUK School of Computing and Mathematics University of South WalesPontypriddUK Faculty of Geosciences and Envir.nmental Engineer.ng Southwest Jiaotong UniversityChengduChina

3D city models ar. widely used in many disciplines and applications,such as ur.an planning,disaster.management,and envir.nmental ***,the ter.ain and embedded objects like buildings ar. taken into consider.tion.A consistent model integr.ting these elements is vital for.GIS analysis,especially if the geometr. is accompanied by the topological r.lations between neighbor.ng *** a model allows for.mor. efficient and er.or.ess *** memor. consumption is another.cr.cial aspect when the wide ar.a of a city is consider.d-light models ar. highly *** methods of the ter.ain r.pr.sentation using the geometr.cal-topological data str.ctur.-the dual half-edge-ar. pr.posed in this *** integr.tion of buildings and other.str.ctur.s like br.dges with the ter.ain is also pr.sented.

关键词： multidimensional modeling GIS data str.ctur.s

Cr.ptospor.dium par.um oocyst dir.cted assembly of gold nanopar.icles and gr.phene oxide

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Fr.ntier. of Chemical Science and Engineer.ng 2019年第3期13卷 608-615,F0004页

作者： Sona Jain Zhicheng Huang Br.nt r. Dixon Syed Sattar.Juewen Liu Depar.ment of Chemistr. Waterloo Institute for NanotechnologyUniversity of WaterlooOntarioN2L3G1Canada Bur.au of Micr.bial Hazar.s Food DirectorateHealth CanadaOntarioK1A 0K9Canada Faculty of Medicine University of OttawaOntarioK1H 8M5Canada

Under.tanding the inter.ctions between inor.anic nanomater.als and biological species is an impor.ant topic for.sur.ace and envir.nmental chemistr.. In this wor., we systematically studied the oocysts of Cr.ptospor.dium pa r.v u m as a model pr.tozoan par.site and its inter.ction with gold nanopar.icles (AuNPs) and gr.phene oxide (GO). The as-pr.par.d citr.te-capped AuNPs adsor. str.ngly on the oocysts leading to a vivid color.change. The adsor.tion of the AuNPs was confir.ed by tr.nsmission electr.n micr.scopy. Heat tr.atment fully inhibited the color.change, indicating a lar.e change of sur.ace chemistr. of the oocysts that can be pr.bed by the AuNPs. Adding pr.teases such as tr.psin and pr.teinase K par.ially inhibited the color.change. DNA-capped AuNPs, on the other.hand, could not be adsor.ed by the oocysts. GO was found to wr.p ar.und the oocysts for.ing a confor.al shell r.flecting the shape of the oocysts. Both citr.tecapped AuNPs and GO compr.mised the membr.ne integr.ty of the oocysts as indicated by the pr.pidium iodide staining exper.ment, and they may be potentially used for.inactivating the oocysts. This is the fir.t example of using nanomater.als to pr.be the sur.ace of the oocysts, and it suggests the possibility of using such or.anisms to template the assembly of nanomater.als.

关键词： nanomater.als toxicology water biosensor.

Tr.nspor. of gold by H_2S-r.ch oil field water., and the or.gin of Car.in-type deposits

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Chinese Science Bulletin 1999年第S2期44卷 161-162页

作者： Chr.stopher.H. Gammons diane Wolfgr.m Montana Tech of the Univer.ity of Montana Dept. of Geological Engineering Butte MT 59701 USA

DUr.NG the cour.e of hydr.car.on evolution and migr.tion, lar.e quantities of H 2S ar. often *** pr.cess is most familiar.to petr.leum geologists, and may lead to for.ing of natur.l gas deposits. Themost impor.ant H2S-for.ing r.actions ar. bacter.al sulfate r.duction （BSr., and ther.ochemical sulfater.duction （TSr.. Wher.as BSr.is r.str.cted to r.latively low temper.tur. （r.becomes impor.ant at elevated temper.tur. （>150℃） and gr.ater.depth of bur.al. BecauseH2S is highly soluble in water. any gr.undwater.in the vicinity of a TSr.active zone will also become enr.ched in H2S. The centr.l hypothesis of this paper.is that hot gr.undwater. associated with TSr.in car.onate ter.ains acquir. the ability to tr.nspor. gold and other.elements （e.g. Ag, Hg, As, Sb, Tl）

关键词： tr.nspor. gold oil field water or.gin Car.in-type deposit.

gold nanopar.icles as dehydr.genase mimicking nanozymes for.estr.diol degr.dation

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Chinese Chemical Letter. 2019年第9期30卷 1655-1658页

作者： Zijie Zhang Leslie M. Br.gg Mar. r. Ser.os Juewen Liu Depar.ment of Chemistr. Waterloo Institute for Nanotechnology University of Waterloo Waterloo Ontario N2L 3G1 Canada Depar.ment of Biology University of Waterloo Waterloo Ontario N2L 3G1 Canada

Nanozyme catalysis has been mainly focused on a few chr.mogenic and fluor.genic substr.tes, while envir.nmentally and biologically impor.ant compounds need to be tested to advance the field. In this wor., we studied oxidation of estr.diol(E2) in the pr.sence of var.ous nanomater.als including gold nanopar.icles(AuNPs), nanocer.a(CeO2), Fe3O4, Fe2O3, MnO2 and Mn2O3, and found that AuNPs had a dehydr.genase-mimicking activity to conver. E2 to estr.ne(E1). This conver.ion was monitor.d using HPLC. The r.action was faster.at higher.pH and r.ached satur.tion at pH 8. Smaller.AuNPs had a higher.catalytic efficiency and 5 nm AuNPs wer. 4.8-fold faster.than 13 nm at the same total sur.ace ar.a. Finally,we tr.ed 17α-ethinylestr.diol(EE2) as a substr.te and found that 5 nm AuNPs can catalyze EE2 oxidation in the pr.sence of H2O2. This wor. indicated that some nanomater.als can affect envir.nmentally impor.ant hor.ones via oxidation r.actions, and this study has expanded the scope of substr.te of nanozymes.

关键词： Nanozymes Estr.diol gold nanopar.icles Catalysis Envir.nment HPLC

The topological viewshed:embedding topological pointer. into digital ter.ain models to impr.ve GIS capability for.visual landscape analysis

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Inter.ational Jour.al of Digital Ear.h 2016年第12期9卷 1185-1205页

作者： N.Sang C.gold D.Miller Depar.ment of Landscape Ar.hitectur. Planning and Management Swedish University of Agricultural ScienceAlnarpSweden Anser.IS AB LundSweden Depar.ment of Computing and Mathematics University of South WalesPontypriddUK The James Hutton Institute AberdeenUK

The effor. to develop a Digital Ear.h has made dr.matic pr.gr.ss in ter.s of visualisation and visual data integr.tion for.use-cases which demand semantically r.ch *** pr.vide this analysis and ensur. legitimate r.pr.sentations of the spatial data fr.m which visualisation ar. der.ved,it is necessar. to pr.vide mor. compr.hensive analytical capabilities of the *** of aesthetic valuation of landscape r.quir. a r.cher.analytical r.sponse than simply‘whether.and possibly how much of’an object or.ar.a of land can be *** r.quir.s inter.ogation of the scene as it appear. and to distinguish between tr.nsient visual effects and those locally invar.ant to view point *** paper.explor.s a data str.ctur. to suppor. scene *** such,it fir.t r.views the existing techniques fr.m the fields of GIS and computer.gr.phics as to their.potential and limitations in pr.viding a qualitatively mor. nuanced visual *** then intr.duces a new method of encoding visually appar.nt r.lationships into ter.ain models.A pr.totype implementation is pr.sented based on the Quad-Edge Tr.angular.Ir.egular.Networ.,though it is believed that r.ster.or.vector.implementation would be *** developed pr.mar.ly with landscape analysis in mind,the method could have wider.applicability.

关键词： Visibility analysis landscape topology viewshed

***:A Platfor. for.Mainstr.aming Citizen Science and Open Science in Eur.pe

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Data Intelligence 2021年第1期3卷 136-149页

作者： Kather.n Wagenknecht Tim Woods Fr.ncisco Gar.ía Sanz Mar.ar.t gold Anne Bowser.Simone r.fenacht Luigi Ceccar.ni Jaume Pier. Technische Hochschule Wildau Hochschulring 115745 WildauGermany Eur.pean Citizen Science Association Invalidenstraße 41Berlin 10115Germany Iber.ivis Foundation Campus Río EbroC/Mariano Esquillor s/n Edificio I+DZaragoza 50018Spain Leiden Univer.ity Rapenburg 702311 EZ LeidenThe Netherlands Woodr.w Wilson Inter.ational Center.for.Scholar. 1300 Pennsylvania Ave.WashingtonDCDistrict of Columbia 20004United States Ear.hwatch Mayfield House256 Banbury RoadOxfordOxfordshire OX27DEUK Institut de Ciències del Mar Consejo Superior de Investigaciones CientíficasPasseig Marítim de la Barceloneta37-49Barcelona 08003Spain

Citizen Science(CS)is a pr.minent field of application for.Open Science(OS),and the two have str.ng syner.ies,such as:advocating for.the data and metadata gener.ted thr.ugh science to be made publicly available[1];suppor.ing mor. equitable collabor.tion between differ.nt types of scientists and citizens;and facilitating knowledge tr.nsfer.to a wider.r.nge of audiences[2].While pr.mar.ly tar.eted at CS,the *** platfor. can also suppor. *** of its key functions is to act as a knowledge hub to aggr.gate,disseminate and pr.mote exper.ence and know-how;for.example,by pr.filing CS pr.jects and collecting tools,r.sour.es and tr.ining mater.als r.levant to both *** do this,the platfor. has developed an infor.ation ar.hitectur. that incor.or.tes the public par.icipation in scientific r.sear.h(PPSr.-Common Conceptual Model.This model consists of the Pr.ject Metadata Model,the Dataset Metadata Model and the Obser.ation Data Model,which wer. specifically developed for.CS *** implementing these,the platfor. will str.ngthen the inter.per.ting ar.angements that exist between other.similar.platfor.s(e.g.,BioCollect and SciStar.er.to ensur. that CS and OS continue to gr.w globally in ter.s of par.icipants,impact and fields of application.

关键词： Citizen Science Metadata Open Science Public par.icipation in scientific r.sear.h(PPSr.