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Exploring Trends in Microcra.k Properties of Sedimenta.y Rocks: a. a.dit of Dry a.d Wa.er Sa.ura.ed Sa.dstone Core Velocity–Stress Mea.urements

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Interna.iona. Journa. of Geosciences 2012年第4期3卷 822-833页

作者： doug a. angus Quentin J. Fisher Ja.es P. Verdon University of Bristol University of Leeds

Stress dependent rock physics models a.e being used more routinely to link mecha.ica. deforma.ion a.d stress perturba.ions to cha.ges in seismic velocities a.d seismic a.isotropy. In this pa.er, we invert for the effective non-linea. microstructura. pa.a.eters of 69 dry a.d sa.ura.ed sa.dstone core sa.ples. We eva.ua.e the results in terms of the model input pa.a.eters of two non-linea. rock physics models: a.discrete a.d a. a.a.ytic microstructura. stress-dependent formula.ion. The results for the a.a.ytic model suggest tha. the globa. trend of the initia. cra.k density is lower a.d initia. a.pect ra.io is la.ger for the sa.ura.ed sa.ples compa.ed to the corresponding dry sa.ples. The initia. a.pect ra.ios for both the dry a.d sa.ura.ed sa.ples a.e tightly clustered between 0.0002 a.d 0.001, wherea. the initia. cra.k densities show more sca.ter. The results for the discrete model show higher cra.k densities for the sa.ura.ed sa.ples when compa.ed to the corresponding dry sa.ples. With increa.ing confining stress the cra.k densities decrea.es to a.most identica. va.ues for both the dry a.d sa.ura.ed sa.ples. a.key result of this pa.er is tha. there a.pea.s to be a.stress dependence of the complia.ce ra.io BN/BT within ma.y of the sa.ples, possibly rela.ed to cha.ging microcra.k geometry with increa.ing confining stress. Furthermore, a.though the complia.ce ra.io BN/BT for dry sa.ples shows a.diffuse distribution between 0.4 a.d 2.0, for sa.ura.ed sa.ples the distribution is very tightly clustered a.ound 0.5. a. confining stresses increa.e the complia.ce ra.io distributions for the dry a.d sa.ura.ed sa.ples become more diffuse but still noticea.ly different. This result is significa.t beca.se it rea.firms previous observa.ions tha. the complia.ce ra.io ca. be used a. a. indica.or of fluid content within cra.ks a.d fra.tures. From a.pra.tica. perspective, a. overa.ching purpose of this pa.er is to investiga.e the ra.ge of input pa.a.eters of the microstructura. models

关键词： Complia.ce Ra.io Microcra.k Properties Sa.ura.ed Stress Dependent Velocities Ultra.onic

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Hea.th a.xiety a.d work loss in pa.ients dia.nosed with serra.ed polyposis syndrome:a.cross sectiona. study

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World Journa. of Clinica. Oncology 2025年第2期16卷 52-62页

作者： angus Thompson Na.a.ie R Dierick Louise Heiniger Stua.t N Kosta.a. School of Clinica. Medicine University of New South WalesPort Macquarie 2444New South WalesAustralia Depa.tment of Ga.troenterology Port Macquarie GastroenterologyPort Macquarie 2444New South WalesAustralia

Ba.KGROUND Serra.ed polyposis syndrome(SPS)is a.polyposis condition with neopla.tic potentia.,but its psychologica. impa.t is not well *** To a.sess hea.th a.xiety preva.ence in a.regiona. a.stra.ia. cohort of SPS pa.ients a.d explore fa.tors influencing it,including workforce impa.ts of regula. *** This cross-sectiona. study screened pa.ients a.ed 18-65 undergoing colonoscopy in a.regiona. ga.troenterology pra.tice between Ja.ua.y 2015 a.d June *** SPS pa.ients were invited to *** included the Short Hea.th a.xiety Inventory,employment sta.us,a.d previous demogra.hic a.d medica. *** Hea.th a.xiety wa. found in 21.57%of SPS pa.ients,with a.xious pa.ients being significa.tly more concerned a.out surveilla.ce(OR=7.70).Pa.ients lost a. a.era.e of 11.04 work hours per *** Hea.th a.xiety in SPS pa.ients a.igns with ra.es in other ga.troenterology *** it ma. improve ma.a.ement,though further resea.ch is needed to better understa.d preva.ence a.d ca.e improvements.

关键词： Serra.ed polyposis syndrome Hea.th a.xiety Colorecta. ca.cer Surveilla.ce

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Ma.ing connections with cell surfa.e a.xin signa.ing

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Molecula. Pla.t 2024年第4期17卷 522-524页

作者： angus S.Murphy University of Ma.yla.d College ParkMDUSA

The discovery a.d cha.a.teriza.ion of the nuclea. a.X-indole-3-a.etic a.id(Ia.)-TIR1/a.B a.xin co-receptor complex in the model pla.t a.a.idopsis a. the outset of the 21st century wa. a.ha.lma.k event in biologica. *** deca.es of subsequent discovery demonstra.ed the centra. role of the nuclea. a.xin perception mecha.ism in virtua.ly every sta.e of Viridipla.ta. *** a.xin receptors were a.so shown to be essentia. for la.er sta.es of differentia. hypocotyl,coleoptile,a.d root tropisms,but the most ra.id responses were found to persist in a.a.idopsis muta.ts la.king importa.t components of the receptor mecha.ism(Na.ier,2021;Peer a.d Murphy,2022).In pa.ticula.,ra.id cellula. elonga.ion observed in tropic growth or a.ter experimenta. a.plica.ion of a.xin is media.ed by H+extrusion a.ross the pla.ma.membra.e(PM).The resulting a.opla.tic a.idifica.ion a.tiva.es extensin proteins tha. loosen cell wa.ls to a.low for turgor-driven cellula. *** initia. events occur in a.time fra.e tha. precludes nuclea. signa.ing a.d now ca. be clea.ly a.tributed to a.cell surfa.e a.xin co-receptor complex a.d downstrea. signa.ing intermedia.ies.

关键词： a.a.idopsis surfa.e wa.ls

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South a.ia. da.ry sma.lholders: a.scoping review of pra.tices a.d zoonoses

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a.ia. Pa.ific Journa. of Tropica. Medicine 2023年第10期16卷 446-452页

作者： Emily Schembri angus J D Ca.pbell Jua. Pa.lo Villa.ueva.Ca.eza. Melbourne School of Popula.ion a.d Globa. Hea.th The University of MelbourneVictoriaAustralia The Nossa. Institute for Globa. Hea.th The University of MelbourneVictoriaAustralia The Peter Doherty Institute for Infection a.d Immunity The University of Melbourne and the Royal Melbourne HospitalVictoriaAustralia

Objective: To identify a.d discuss on-fa.m ma.a.ement pra.tices linked to ba.teria. zoonosis risk in sma.lholder da.ry fa.mers in South a.ia. Methods: This scoping review wa. conducted a. per the PRISMa.ScR guidelines. Five hundred a.d two publica.ions were retrieved from five online da.a.a.es using a.comprehensive sea.ch stra.egy. Studies were selected if they discussed a.fa.m ma.a.ement pra.tice which impa.ted huma. hea.th within a.South a.ia. country. Results: Twenty-two studies were included. Seven ma.a.ement pra.tices releva.t to fa.mers, livestock a.d their sha.ed environment were identified including ra. milk consumption, fa.m hygiene ma.a.ement, persona. protective equipment uses, a.ima. va.cina.ion, clea.ing udders, ha.d wa.hing a.d disposa. of a.terbirth ma.eria.s. Preventive pra.tices were found to be utilized a. lower frequencies compa.ed to risk increa.ing pra.tices. a.a.eness of ba.teria. zoonoses is pa.ticula.ly low within the region. Conclusions: Ba.ed on the results of this review, it wa. determined tha. improving fa.mer a.a.eness of ba.teria. zoonotic disea.es ma. fa.or severa. of the presented levera.e points within the South a.ia. sma.lholder da.ry system. Relying on forma. school educa.ion to improve this a.a.eness ma. not solve this problem, instea., more focus on a.cessible a.d a.forda.le zoonoses educa.ion a.d fa.ming progra.s is required.

关键词： Ma.a.ement pra.tices Zoonoses Da.ry Sma.lholder system

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Perceptions a.d a.titudes Towa.ds Shoulder Pa.ding a.d Shoulder Injury in Rugby Union

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Journa. of Science in Sport a.d Exercise 2022年第1期4卷 66-73页

作者： angus Hughes Ma.t Ca.ré Hea.her Driscoll Depa.tment of Mecha.ica. Engineering The University of SheffieldSheffield S102TNUK a.va.ced Ma.ufa.turing Resea.ch Centre The University of SheffieldSheffield S605TZUK

Purpose To develop a. understa.ding of the role of shoulder pa.ding in rugby union by investiga.ing pla.er perceptions a.d a.titudes towa.ds shoulder pa.ding a.d extending resea.ch into shoulder injuries in *** a. online survey wa. distributed to pa.t a.d current rugby pla.ers over 13 yea.s old in *** rela.ed to the pa.ticipa.ts’demogra.hic,a.titudes to shoulder pa.ding a.d shoulder injury *** Six hundred a.d sixteen rugby pla.ers responded to the survey;66.1%of respondents ha. worn shoulder pa.ding a. some *** a.e group 24-29 yea.s old(ΔR^(2)=0.03,B=−0.53,P=0.015)ha. a. inverse a.socia.ion with pa.ding effectiveness while pla.ing experience groups 1-2 yea.s(ΔR^(2)=0.03,B=0.8,P=0.032),3-5 yea.s(ΔR^(2)=0.03,B=0.70,P=0.002)a.d 6-9 yea.s(ΔR^(2)=0.03,B=0.41,P=0)ha. a.positive *** a.e 37.1%of respondents consider-ing shoulder pa.ding to be effective a. preventing cuts a.d a.ra.ions with 21.9%finding it very effective;50.3%considered it to be effective or very effective(9.7%)a. preventing contusion;45.5%wore pa.ding for injury prevention,while 19.2%wore pa.ding to protect from reoccurring ***/liga.ent da.a.e(57.5%)a.d bruising(55.5%)were the most com-monly reported *** The prima.y rea.on for wea.ing shoulder pa.ding wa. a. a.mea.s of injury *** should focus on qua.tifying the injury preventive ca.a.ilities of shoulder ***,cuts a.d a.ra.ion injuries to the shoulder a.e preva.ent presenting new findings tha. these injuries a.e underreported.

关键词： Rugby union Shoulder pa.ding Protective equipment Epidemiology a.titudes

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Optica. interference coa.ings-yesterda. a.d toda.

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Chinese Optics Letters 2013年第13期11卷 1-5页

作者： angus Ma.leod Thin Film Center Inc 2745 E Via Rotonda Tucson AZ 85716-5227 USA

a.though they a.e common in na.ure a.d must certa.nly ha.e been observed by ea.ly ma., we ha.e to wa.t till Newton for the first truly scientific study of wha. we now understa.d a. interference effects in thin films. Young, Fresnel, a.d Ma.well a.l contributed a.d the theory wa. well esta.lished by the beginning of the 20th century. Coa.ings depending on interference, a. this sta.e, were in their infa.cy a.d a.tireflection a.d decora.ive coa.ings, a.d color photogra.hy were the prima.y a.plica.ions. By the middle of the 20th century, the situa.ion ha. cha.ged completely. Toda. a.most the entire field of optics depends on interference optica. coa.ings. This pa.er will sta.t with a.ra.id a.count of the history a.d end with a.survey of the ra.ge of interference coa.ings tha. a.e employed toda. with a.fleeting glimpse of wha. might be in the future.

关键词： 240.0310 Thin films 260.3160 Interference 310.1620 Interference coa.ings

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Cold dwell beha.iour of Ti6a. a.loy:Understa.ding loa. shedding using digita. ima.e correla.ion a.d disloca.ion ba.ed crysta. pla.ticity simula.ions

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Journa. of Ma.eria.s Science & Technology 2022年第33期128卷 254-272页

作者： Yi Xiong NicolòGrilli Pha.i S.Ka.a.ched Bo-Shiua. Li Edmund Ta.leton angus J.Wilkinson Depa.tment of Ma.eria.s University of OxfordParks RoadOxfordOX13PHUnited Kingdom Depa.tment of Mecha.ica. Engineering University of BristolQueen’s BuildingUniversity WalkBristolUnited Kingdom Depa.tment of Engineering Science University of OxfordParks RoadOxfordOX13PJUnited Kingdom

Digita. ima.e correla.ion(DIC)a.d disloca.ion ba.ed crysta. pla.ticity simula.ion were utilised to study cold dwell beha.iour in a.coa.se gra.n Ti-6a. a.loy a. 3 different tempera.ures up to 230℃.Stra.ns extra.ted from la.ge volume gra.ns were mea.ured during creep by DIC a.d were used to ca.ibra.e the crysta. pla.ticity *** va.ues of critica. resolved shea. stresses(CRSS)of the two ma.n slip systems(ba.a. a.d prisma.ic)were determined a. a.function of *** a.ong pa.hs a.ross the bounda.ies of four gra.n pa.rs,three“rogue”gra.n pa.rs a.d one“non-rogue”gra.n pa.r,were determined a. different *** loa. shedding wa. observed in one of the“rogue”gra.n pa.rs,where a.stress increment during the creep period wa. found in the“ha.d”gra.n.a.minor loa. shedding mecha.ism wa. observed in two non-typica.“rogue”gra.n pa.rs,in which the pla.tic deforma.ion is nonuniform inside the gra.ns a.d geometrica.ly necessa.y disloca.ions a.cumula.e in the centre of the *** eleva.ed tempera.ures,120℃wa. found to be the worst ca.e scena.io a. the stress difference a. the gra.n bounda.ies of these four gra.n pa.rs wa. found to be the la.gest a.ong the three tempera.ures *** origin of this critica. tempera.ure is deba.ed in the litera.ure a.d it is investiga.ed for the first time in the present work by a.a.ysing the simulta.eous effects of the geometrica.ly necessa.y disloca.ions(GND)a.d the stra.n ra.e sensitivity(SRS)of the slip *** a.a.ysis shows tha. the combined effects of the pea. SRS of both prisma.ic a.d ba.a. slip systems a. 80℃a.d of the increa.e of the sprea. of the GND distribution a.ound the gra.n bounda.y a. higher tempera.ures a.e the origin of the observed worst ca.e scena.io.

关键词： Cold dwell fa.igue Digita. ima.e correla.ion Crysta. pla.ticity Loa. shedding Tita.ium a.loy

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Numerica. a.a.ysis of the performa.ce of a.three-bla.ed vertica.-a.is turbine with a.tive pitch control using a.coupled unstea.y Reynolds-a.era.ed Na.ier-Stokes a.d a.tua.or line model

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Journa. of Hydrodyna.ics 2023年第3期35卷 516-532页

作者： Rui-wen Zha. angus C.W.Creech Ye Li Venga.esa. Venugopa. a.ista.r G.L.Borthwick La.ora.ory of Multi-function Towing Ta.k State Key Laboratory of Ocean EngineeringSchool of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Engineering a.d Physica. Sciences Heriot-Watt UniversityEdinburghUK School of Engineering The University of EdinburghEdinburghUK School of Engineering Computing and MathematicsUniversity of PlymouthPlymouthUK

In this pa.er,we present a.numerica. model of a.vertica.-a.is turbine(Va.)with a.tive-pitch torque *** model is ba.ed upon the Wind a.d Tida. Turbine Embedded Simula.or(Wa.TES)a.d Wa.TES-V turbine rea.isa.ions in conjunction with the a.tua.or line method(a.M),a.d uses OpenFOa. to solve the unstea.y Reynolds-a.era.ed Na.ier-Stokes(URa.S)equa.ions with two-equa.ion k-εturbulence *** novel pitch-controlled system is ba.ed on a. even pressure drop a.ross the entire rotor to mitiga.e a.a.nst dyna.ic sta.l a. low tip speed *** numerica. model is va.ida.ed a.a.nst experimenta. mea.urements a.d a.terna.ive numerica. predictions of the hydrodyna.ic performa.ce of a.1:6 sca.e UNH-RM2 hydrokinetic *** deploying the va.ia.le pitch mecha.ism exhibit improved turbine performa.ce compa.ed to mea.ured da.a.a.d fixed zero-pitch model ***-wa.e cha.a.teristics a.e investiga.ed by exa.ining the vorticity distribution nea. the *** pitch-controlled system is demonstra.ed to theoretica.ly decrea.e turbulence genera.ed by turbine rota.ions,mitiga.e the intensity of vortex shedding a.d size of deta.hed vortices,a.d significa.tly enha.ce the performa.ce of a.vertica.-a.is hydrokinetic turbine for ra.ed tip-speed ra.ios.

关键词： Vertica.-a.is turbine pitch control hydrodyna.ic performa.ce unstea.y Reynolds-a.era.ed Na.ier-Stokes(URa.S) numerica. simula.ion

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Solvent Extra.tion Developments in Southern a.rica

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Tsinghua.Science a.d Technology 2006年第2期11卷 153-159页

作者： Peter M. Cole Ka.hryn C. Sole angus M. Fea.her Ma.omo Projects (Pty) Ltd. Johannesburg South Africa a.glo a.erica. Resea.ch La.ora.ories Johannesburg South Africa Cognis Corpora.ion Johannesburg South Africa

The la.gest solvent-extra.tion pla.t in the world a. the time, the Ncha.ga.Copper Opera.ion, wa. in Za.bia. The first commercia. process using solvent extra.tion for the refining of the pla.inum-group meta.s wa. in South a.rica. More recently, the Southern a.rica. region ha. seen the implementa.ion of solvent extra.tion for other ba.e meta.s, precious meta.s, a.d specia.ty meta.s. These include the world firsts of prima.y production of zinc a. Skorpion Zinc in Na.ibia.a.d the la.ge-sca.e refining of gold by Ha.mony Gold in South a.rica. Severa. other flowsheets tha. use solvent-extra.tion technology a.e currently under commissioning, development, or fea.ibility study for implementa.ion in this pa.t of the world, including those for the recovery of copper, coba.t, nickel, ta.ta.um, a.d niobium.

关键词： solvent extra.tion zinc recovery gold refining copper coba.t nickel

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La.ge-a.ea.na.opa.terned gra.hene for ultra.ensitive ga. sensing

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Na.o Resea.ch 2014年第5期7卷 743-754页

作者： a.berto Ca.lia.i Da.id Michea. angus Ma.kenzie Lisa.Ka.ha.ina.Tscha.mer Filippo Pizzocchero Kristoffer a.mda. Peter Boggild DTU Na.otech-Center for Na.ostructured Gra.hene (CNG) a.d Depa.tment of Micro- a.d Na.otechnology Technical University ofDenmark Building 345 ~rsteds Plads 2800 Kgs. Lyngby Denmark

Chemica. va.or deposited （CVD） gra.hene is na.opa.terned using a.spherica. block copolymer etch ma.k. The use of spherica. ra.her tha. cylindrica. block copolymers a.lows homogeneous pa.terning of cm-sca.e a.ea. without a.y substra.e surfa.e trea.ment. Ra.a. spectroscopy wa. used to study the con- trolled genera.ion of point defects in the gra.hene la.tice with increa.ing etching time, confirming tha. a.ongside the na.omesh pa.terning, the na.opa.terned CVD gra.hene presents a.high defect density between the mesh holes. The na.opa.terned sa.ples showed sensitivities for NO2 of more tha. one order of ma.nitude higher tha. for non-pa.terned gra.hene. NO2 concentra.ions a. low a. 300 ppt were detected with a. ultima.e detection limit of tens of ppt. This is the sma.lest va.ue reported so fa. for non-UV illumina.ed gra.hene chemiresistive NO2 ga. sensors. The dra.a.ic improvement in the ga. sensitivity is believed to be due to the high a.sorption site density, tha.ks to the combina.ion of edge sites a.d point defect sites. This work opens the possibility of la.ge a.ea.fa.rica.ion of na.opa.terned gra.hene with extremely high densities of a.sorption sites for sensing a.plica.ions.

关键词： gra.hene ga. sensor nitrogen dioxide na.opa.teming defects

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