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3-D geochemical interpolation guided by geophysical inversion models

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Geoscience Frontiers 2021年第3期12卷 132-145页

作者： Tom horrocks Eun-Jung Holden Daniel Wedge ChrisWijns Centre for Exploration Targeting.School of Earth Sciences University of Western AustraliaCrawleyWA 6009Australia

3-D geochemical subsurface models,as constructed by spatial interpolation of drill-core assays,are valuable assets across multiple stages of the mineral industry's ***,the accuracy of such models is limited by the spatial sparsity of the underlying drill-core,which samples only a small fraction of the *** limitation can be alleviated by integrating collocated 3-D models into the interpolation process,such as the 3-D rock property models produced by modern geophysical inversion procedures,provided that they are sufficiently resolved and correlated with the interpolation *** standard machine learning algorithms are capable of predicting the target property given these data,incorporating spatial autocorrelation and anisotropy in these models is often not *** propose a Gaussian process regression model for 3-D geochemical interpolation,where custom kernels are introduced to integrate collocated 3-D rock property models while addressing the trade-off between the spatial proximity of drill-cores and the similarities in their collocated rock properties,as well as the relative degree to which each supporting 3-D model contributes to *** proposed model was evaluated for 3-D modelling of Mg content in the Kevitsa Ni-Cu-PGE deposit based on drill-core analyses and four 3-D geophysical inversion *** the inversion models improved the regression model's likelihood(relative to a purely spatial Gaussian process regression model)when evaluated at held-out test holes,but only for moderate spatial scales(100 m).

关键词： Machine learning Gaussian process regression Kriging Geophysical inversion Interpolation

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Outcompeted by an invader?Interference and exploitative competition between tropical house gecko(Hemidactylus mabouia)and Barbados leaf-toed gecko(Phyllodactylus pulcher)for diurnal refuges in anthropogenic coastal habitats

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Integrative Zoology 2016年第3期11卷 229-238页

作者： Robert WILLIAMS Angelo P.PERNETTA Julia A.horrocks Ecology and Conservation Research Group School of Pharmacy and Biomolecular SciencesUniversity of BrightonBrightonUK Ecology and Conservation Research Group University of BrightonHastingsUK Department of Biological and Chemical Sciences University of the West IndiesBarbadosWest Indies

House geckos in the genus Hemidactylus are highly successful colonizers of regions beyond their native range,with colonization often resulting in displacement of native gecko species through competitive interactions for daytime refuge(crevices)and prey *** report on data collected from nighttime surveys undertaken in April-May 2014 on Barbados,West Indies,that focused on the distribution and abundance of the endemic Barbados leaf-toed gecko(Phyllodactylus pulcher)and the introduced tropical house gecko(Hemidactylus mabouia)along unlit coastal walls and among boulders in the grounds of a hotel *** contrast to patterns of displacement of native species by *** seen elsewhere,*** was more abundant than *** on coastal walls,whereas the latter was found in greater numbers using boulders at this *** and boulders differed with regard to availability of diurnal refugia suitable for geckos,with the walls having high frequency of small crevices with openings<20 mm,and boulders offering very little cover other than the underside of the boulder *** investigate whether this niche separation was a result of differences in diurnal refuge use between the species,we conducted experimental trials in which geckos were allowed to select between refugia with different *** species selected for narrower and warmer refugia,and refugia that had been previously occupied by the other *** shared preferences for refugia type suggest that other factors underlie the niche separation observed in the *** supporting high densities of ***,coastal walls could offer important secondary habitat by augmenting the natural cliff side habitat of this endemic gecko,a finding that could be exploited for the conservation of this candidate species for Critically Endangered classification.

关键词： Barbados leaf-toed gecko Hemidactylus island endemic Phyllodactylus tropical house gecko

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纤维与纺织品的阻燃新进展与挑战（英文）

中国材料进展 2015年第9期34卷 659-674,658页

作者： A Richard horrocks Liu Wei Institute for Research and Innovation University of Bolton 公安部四川消防研究所四川成都610036

20世纪50～60年代，各种织物、纤维的耐久阻燃整理技术飞速发展，这些产品和工艺现已被大量应用于织物和纤维的阻燃耐久整理。但随着市场对环境、化学品毒性、成本及性能等方面的要求愈加严苛，其中多数产品的使用受到了质疑。“可否找... 详细信息

20世纪50～60年代，各种织物、纤维的耐久阻燃整理技术飞速发展，这些产品和工艺现已被大量应用于织物和纤维的阻燃耐久整理。但随着市场对环境、化学品毒性、成本及性能等方面的要求愈加严苛，其中多数产品的使用受到了质疑。“可否找到使用中释放甲醛类阻燃剂的替代品用于纤维素织物的耐久阻燃”已成为常被提及的问题。而关于“能否生产出成炭性能良好的聚酯阻燃剂”和“能否制备出高效无卤阻燃剂用于织物涂层和背涂”也备受关注。相关研究回顾表明，人们从20世纪下半叶就在寻求这些问题的解决方法，而这些工作也为目前最新的商业化阻燃纤维和纺织品发展奠定了基础；其次，本世纪前十年的研究主要侧重于解决环境可持续发展问题、寻找可替代的阻燃配方、满足合成纤维提高成炭的需求以及纳米技术的应用。另外，文章还对纤维的微表面改性和纳米表面改性的作用以及整理过程中等离子体、层层自组装、溶胶一凝胶等技术在织物阻燃整理中的应用进行了综述。

关键词：阻燃卤素磷元素织物纤维环境纳米技术等离子体

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减少轻型柴油机排放物的最新技术

汽车与新动力 1996年第3期 34-42页

作者： horrocks R W 张耀庆

欧共体国家将于1996年进入排放法规的下一阶段。研究了这些新标准及其对轻型柴油车的影响,考虑了美国大气污染防治修正案的现状。评述了轻型车用柴油机技术的最新开发情况,特别是有关达到低排放标准及其对燃油经济性的影响。

关键词：轻型载货汽车柴油机排放标准技术

Quantum receiver enhanced by adaptive learning

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Light(Science & Applications) 2022年第12期11卷 3080-3086页

作者： Chaohan Cui William horrocks Shuhong Hao Saikat Guha Nasser Peyghambarian Quntao Zhuang Zheshen Zhang James C.Wyant College of Optical Sciences University of ArizonaTucsonAZ 85721USA Department of Materials Science and Engineering University of ArizonaTucsonAZ 85721USA Department of Electrical and Computer Engineering University of ArizonaTucsonAZ 85721USA Department of Electrical and Computer Engineering University of Southern CaliforniaLos AngelesCA 90089USA Department of Electrical Engineering and Computer Science University of MichiganAnn ArborMI 48109USA

Quantum receivers aim to effectively navigate the vast quantum-state space to endow quantum information processing capabilities unmatched by classical *** date,only a handful of quantum receivers have been constructed to tackle the problem of discriminating coherent *** receivers designed by analytical approaches,however,are incapable of effectively adapting to diverse environmental conditions,resulting in their quickly diminishing performance as the operational complexities ***,we present a general architecture,dubbed the quantum receiver enhanced by adaptive learning,to adapt quantum receiver structures to diverse operational *** adaptively learned quantum receiver is experimentally implemented in a hardware platform with record-high *** the architecture and the experimental advances,the error rate is reduced up to 40%over the standard quantum limit in two coherent-state encoding schemes.

关键词： quantum coherent matched

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福特轻型车用4气门直喷柴油机的开发

汽车与新动力 1996年第6期 3-8页

作者： Menne R J Lawrence P J horrocks R W 顾如龙

概述了美国福特汽车公司1992年投放市场的2.5L电控喷油泵和涡轮增压新机型的开发过程,该机能符合欧洲94/12/EC第二阶段排放法规,着重讨论了4气门技术等的应用。

关键词：汽车发动机直接喷射柴油机开发

磷酸化多元醇反应增强纤维素成炭的研究(英文)

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磷酸化多元醇反应增强纤维素成炭的研究(英文)

澳大利亚六家烧结厂和球团厂简介——澳大利亚股份有限公司肯布拉港烧结厂

2007年中国阻燃学术年会

作者：张胜 Richard horrocks The College of Materials Science and Engineering Beijing University of Chemical Technology Faculty of Technology The University of BoltonDeane RoadBoltonBL3 5ABUK

采用多元醇氯化磷酰为纤维素的磷酸化试剂,将酸生成的成炭中心引入自身具有潜在成炭能力的功能聚合物中。研究表明双环季戊四醇氯化磷酰(SPDPC)在合适的溶剂(二甲基甲酰胺)及碱性(吡啶和氢氧化钠)条件下可发生取代反应,磷浓度可达2.5%(w...

采用多元醇氯化磷酰为纤维素的磷酸化试剂,将酸生成的成炭中心引入自身具有潜在成炭能力的功能聚合物中。研究表明双环季戊四醇氯化磷酰(SPDPC)在合适的溶剂(二甲基甲酰胺)及碱性(吡啶和氢氧化钠)条件下可发生取代反应,磷浓度可达2.5%(w/w)。这相当于磷酸化率达到22.7%。磷酸化的效率取决于反应温度以及SPDPC与棉的质量比。当反应在SPDPC与棉的质量比为4:1(与纤维素的重复单元:?SPDPC分子的摩尔比基本相同),160℃的条件下进行两小时,此时磷酸化产率最高。热失重分析表明与未经处理的棉纤维素相比,经SPDPC磷酸化的纤维素在400至740℃的温度范围内具有较强的成炭能力。扫描电镜试验显示在空气中600℃以上可清楚观察到焦炭且具有较好的抗氧化性。有关成果申请两项英国专利,并成功用于英国的阻燃纺织品的商业化生产中。

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烧结球团 1983年第4期 79-81页

作者： Arnold K.Farey,Keith R.horrocks 澳澳

前言自从埃德曼兹(Edmonds)和斯坦莱克(Stanlake)于1965年介绍肯布拉港(Port Kembla)烧结厂的情况以来,该厂的设备和生产已发生了很大的变化。船舶卸料设施、主原料场、筛分设施和一个粉料中和料场等

关键词：烧结厂高炉筛分钢铁企业化工单元操作人造富矿烧结矿烧结设备中和料场点火装置点火炉矿槽大洋洲澳大利亚

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用差热分析(DTA)研究棉纤维素的着火

产业用纺织品 1984年第3期 30-32页

作者： D.DAVIES ,A.R.horrocks ,孙金川

一般认为在纤维素开始加热时产生的热解产物有不可燃的残渣部份和易燃的挥发物,而后者在有氧气的情况下可否着火,取决于两者的比例以及总的挥发物/氧气的浓度是否足以在给定的温度下发生相互的氧化作用。纤维素的持续燃烧通常简单地看... 详细信息

一般认为在纤维素开始加热时产生的热解产物有不可燃的残渣部份和易燃的挥发物,而后者在有氧气的情况下可否着火,取决于两者的比例以及总的挥发物/氧气的浓度是否足以在给定的温度下发生相互的氧化作用。纤维素的持续燃烧通常简单地看成是热

关键词：加热速率纤维素 Ti DTA 差热分析