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Math.matical Invariant and Quantitative Estimation on Element Migration of h.droth.rmal Wall-Rock Alteration--With.an Example of Application in th. h.tai Gold Field, Guangdong Province, Ch.na

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Ch.nese Science Bulletin 1994年第19期39卷 1638-1643页

作者：周永章涂光炽 edward h. chown Jayanta Guh. 卢焕章 Institute of Geoch.mistry Guangzhou Branch Academia Sinica Guangzhou 510640 PRC Universite du Quebec a Ch.coutimi Canada G7H 2B1

h.droth.rmal wall-rock alteration is th. interaction of h.droth.rmal fluids with.th. wall rock, causing ch.nges or redistribution of ch.mical compositions of initial wall *** study of h.droth.rmal alteration may enric... 详细信息

关键词： constant sum constraint conserved element balance estimation of mass element migration.

Alloph.ne as a Nanotech.ological Additive in Masonry Materials to Increase Resistance and Waterproofing

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Advances in Materials Ph.sics and Ch.mistry 2024年第8期14卷 196-212页

作者： edward h. Jiménez Joao Rivera Juan h. Villalba Paola E. Vera Marlon Cuenca Belén Granja Javier Fuentes Sandra Gavilanes Daniel h.dalgo Fernando Garcia Jose Bermudez Wash.ngton Ruiz Alexis Martial Debut Facultad de Ingeniera Qumica Universidad Central del Ecuador Quito Ecuador Facultad de Arquitectura y Urbanismo Universidad Central del Ecuador Quito Ecuador Nanomaterials Ch.racterization Laboratory Universidad de las Fuerzas Armadas ESPE Sangolqu Ecuador

Th. constant need for h.gh.strength.materials in th. construction industry promotes th. research.of additives th.t improve th. properties of masonry materials. Th. use of alloph.ne as an additive in concrete and mortar mixtures was implemented to improve th.ir strength.and waterproofing, respectively, using compression and water absorption tests according to th.ir corresponding standards (ASTM C1231, ASTM D2938, and ASTM C1585). Th. samples were evaluated at different concentrations and curing ages. In addition, different sand/cement ratios were considered for th. mortar. Th. results revealed th.t th.re was a 9.4% increase in compressive strength.in concrete and a 23.7% reduction in water absorption in mortar for th. 5:1 ratio. Th.se ch.nges would be th. result of th. interaction of th. nanoporous additive in th. atomic crystal structure of th. material demonstrating th. nanotech.ological nature of alloph.ne.

关键词： Alloph.ne Nano Additive Strength Impermeability Concrete Mortar

Effects of crop residues for animal consumption and soil enh.ncement on th. electricity generation potential of residues:A case study of Sawla-Tuna-Kalba district,Gh.na

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International Journal of Agricultural and Biological Engineering 2024年第4期17卷 276-287页

作者： Augustine Awaafo edward A.Awafo Meisam Mah.avi David Vera Gilbert Ayine Akolgo Emmanuel Amankwah.Francisco Jurado Department of Electrical Engineering University of JaénLinares 23700JaénSpain Department of Computer and Electrical Engineering University of Energy and Natural ResourcesSunyani P.O.Box 214Ghana Department of Agricultural and Bioresources Engineering University of Energy and Natural ResourcesSunyani P.O.Box 214Ghana

Many studies h.ve estimated th. potential of crop residues for energy generation globally and recognized its great potential,especially in rural areas wh.re on-grid electricity is ***,crop residues h.ve oth.r equally important uses as animal feed and as mulch.for soil enh.ncement,especially in rural farming ***,most of th. known studies h.ve neglected th. estimation of th. quantity of crop residues th.t will be required for feeding animals and also for th. enh.ncement of soil th.ough.mulch.ng in th.ir energy potential estimation from crop *** th.se two important uses can lead to th. over-exploitation of th. residues for energy generation at th. expense of conservation agriculture practices as well as depriving animals of quality feed wh.ch.can lead to low crop yield and animal production,with.th. ability to cause h.nger and *** study h.s assessed th. potential of electricity generation from agricultural residues in th. Sawla-Tuna-Kalba district of Gh.na using gasification tech.ology,taking cognizance of th. proportion of residues needed for animal consumption and soil *** results of th. study indicate th.t out of th. 207646.22 t of residues th.t can be generated from maize,yam,cassava,millet,sorgh.m,and groundnut,26830.36 t(representing 13%)will be required by sh.ep,goats,and cows for consumption,and 13936.17 t(representing 7%)will be required for mulch.ng soils wh.re th. crops are ***,it was found th.t a total of 592.17 MW∙h.of electricity can be generated from crop residues with.ut animal consumption and soil enh.ncement needs,wh.le 461.89 MW∙h.could be generated from th. residues,considering animal feed and soil *** study h.s indicated th.t it is not enough.to consider soil enh.ncement and animal feeding in agricultural biomass power generation th.ough.recovery factors with.ut th. exact quantification of residues required for th.se purposes since th.s can lead to a vi

关键词： animal feed crop residue electricity generation soil enh.ncement

Development of Biomimetic Squid-Inspired Suckers

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Journal of Bionic Engineering 2012年第4期9卷 484-493页

作者： Jinping h.u edward Wrigh. Rich.rd h. C. Bonser George Jeronimidis Centre for Biomimetics School of Construction Management and Engineering University of Reading Reading RG6 6AY UK Sch.ol of Engineering and Design Brunel University Uxbridge Middlesex UB8 3PH UK

Biomech.nical properties of squid suckers were studied to provide inspiration for th. development of sucker artefacts for a robotic octopus. Mech.nical support of th. rings found inside squid suckers was studied by bending tests. Tensile tests were carried out to study th. maximum possible sucking force produced by squid suckers based on th. strength.of sucker stalks, normalized by th. sucking areas. Th. squid suckers were also directly tested to obtain sucking forces by a special testing ar- rangement. Inspired by th. squid suckers, th.ee types of sucker artefacts were developed for th. arm skin of an octopus inspired robot. Th. first sucker artefact made of knitted nylon sh.et reinforced silicone rubber h.s th. same sh.pe as th. squid suckers. Like real squid suckers, th.s type of artefact also h.s a stalk th.t is connected to th. arm skin and a ring to give radial support. Th. second design is a straigh. cylindrical structure with.uniform wall th.ckness made of silicone rubber. One end of th. cylinder is directly connected to th. arm skin and th. oth.r end is open. Th. final design of th. sucker h.s a cylindrical base and a concave meniscus top. Th. meniscus was formed naturally using th. surface tension of silicone gel, wh.ch.leads to a h.gh.r level of th. liquid around th. edge of a container. Th. wall th.ckness decreases towards th. tip of th. sucker opening. Sucking forces of all th.ee types of sucker artefacts were measured. Advantages and disadvantages of each.sucker type were discussed. Th. final design of suckers h.s been implemented to th. arm skin prototypes.

关键词： biomimetics squid sucker sucking force artificial sucker

Diversity and connectedness of brine sh.imp viruses in global h.persaline ecosystems

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Science Ch.na(Life Sciences) 2024年第1期67卷 188-203页

作者： Xuan Dong Cixiu Li Yiting Wang Tao h. Fan Zh.ng Fanzeng Meng Meirong Gao Xuekai h.n Guoh.o Wang Jiah.o Qin h.ns Nauwynck edward Ch.lmes Patrick Sorgeloos Liying Sui Jie h.ang Weifeng Sh. State Key Laboratory of Mariculture Biobreeding and Sustainable Goods Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesLaboratory for Marine Fisheries Science and Food Production ProcessesLaoshan LaboratoryKey Laboratory of Maricultural Organism Disease ControlMinistry of Agriculture and Rural AffairsQingdao Key Laboratory of Mariculture Epidemiology and BiosecurityQingdao 266071China Sh.ndong Provincial h.spital Affiliated to Sh.ndong First Medical University Jinan 250021China Key Laboratory of Emerging Infectious Diseases in Universities of Sh.ndong Shandong First Medical University&Shandong Academy of Medical SciencesTaian 271000China Dalian Ocean University Dalian 116023China Asian Regional Artemia Reference Center Tianjin University of Science&TechnologyTianjin 300457China Gh.nt University Ghent 9000Belgium Sydney Institute for Infectious Diseases School of Medical SciencesThe University of SydneySydney 2006Australia Network of Aquaculture Centres in Asia-Pacific Bangkok 10900Thailand Sch.ol of Public h.alth Shandong First Medical University&Shandong Academy of Medical SciencesJinan 250117China

Brine sh.imp(Artemia)h.s existed on Earth.for 400 million years and h.s major ecological importance in h.persaline *** a crucial live food in aquaculture,brine sh.imp cysts h.ve become one of th. most important aquatic products traded ***,our understanding of th. biodiversity,prevalence and global connectedness of viruses in brine sh.imp is still very limited.A total of 143 batch.s of brine sh.imp(belonging to seven species)cysts were collected from six continents including 21 countries and more th.n 100 geograph.c locations worldwide during 1977–*** total,55 novel RNA viruses were identified,wh.ch.could be assigned to 18 different viral families and related *** viruses were dsRNA viruses,16 were+ssRNA viruses,and 28 were−ssRNA *** analyses of th. RNA-directed RNA polymerase(RdRp)sh.wed th.t brine sh.imp viruses were often grouped with.viruses isolated from oth.r invertebrates and ***,most brine sh.imp viruses were related to th.se from different h.sts th.t migh. feed on brine sh.imp or sh.re th. same ecological nich..A notable case was th. novel brine sh.imp noda-like virus 3,wh.ch.sh.red 79.25%(RdRp)and 63.88%(capsid proteins)amino acid identity with.covert mortality nodavirus(CMNV)th.t may cause losses in *** addition,both.virome composition and ph.logenetic analyses revealed global connectedness in certain brine sh.imp viruses,particularly among Asia and North.rn *** h.gh.igh.s th. incredible species diversity of viruses in th.se ancient species and provides essential data for th. prevalence of RNA viruses in th. global aquaculture *** broadly,th.se findings provide novel insigh.s into th. previously unrecognized RNA virosph.re in h.persaline ecosystems worldwide and demonstrate th.t h.man activity migh. h.ve driven th. global connectedness of brine sh.imp viruses.

关键词： brine sh.imp Artemia virus diversity novel virus discovery global connectedness h.persaline ecosystem

Astrocytic calcium waves:unveiling th.ir roles in sleep and arousal modulation

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Neural Regeneration Research 2024年第5期19卷 984-987页

作者： Erxi Wu Dan Qi Damir Nizamutdinov Jason h.h.ang Department of Neurosurgery and Neuroscience Institute Baylor Scott&White HealthTempleTXUSA Texas A&M University Sch.ol of Medicine TempleTXUSA Texas A&M University Sch.ol of Ph.rmacy College StationTXUSA LIVESTRONG Cancer Institutes and Department of Oncology Dell Medical Schoolthe University of Texas at AustinAustinTXUSA Department of Neurosurgery Baylor College of MedicineTempleTXUSA

Neuron-astrocyte interactions are vital for th. brain’s *** astrocyte activities is crucial for compreh.nding th. complex neural network,particularly th. population-level functions of neurons in different cortical states and associated beh.viors in *** on animal sleep and wakefulness h.ve revealed distinct cortical synch.ony patterns between ***,outnumbering neurons by nearly fivefold,support and regulate neuronal and synaptic *** research.on astrocyte activation during cortical state transitions h.s emph.sized th. influence of norepineph.ine as a neurotransmitter and calcium waves as key components of ion ch.nnel *** summary focuses on a few recent studies investigating astrocyte-neuron interactions in mouse models during sleep,wakefulness,and arousal levels,exploring th. involvement of noradrenaline signaling,ion ch.nnels,and glutamatergic signaling in different cortical *** findings h.gh.igh. th. significant impact of astrocytes on large-scale neuronal networks,influencing brain activity and *** astrocytic signaling path.ays sh.ws promise for treating sleep disorders and arousal *** research.is needed to understand astrocytic calcium signaling in different brain regions and its implications for dysregulated brain states,requiring future h.man studies to compreh.nsively investigate neuron-astrocyte interactions and pave th. way for th.rapeutic interventions in sleep-and arousal-related disorders.

关键词： arousal astrocyte calcium waves locus coeruleus neuron-astrocyte interaction norepineph.ine sleep wakefulness

Meso-Scale VOC-Mixture Analyzer with.Tunable Separation and Microsensor Array Detection

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稀有金属材料与工程 2006年第A3期35卷 61-64页

作者： Qiongyan Zh.ng William h. Steinecker edward T. Zellers Department of Environmental h.alth.Sciences University of Michigan 109 S. Observatory St. Ann Arbor MI 48109-2029 USA Department of Ch.mistry University of Michigan 109 S. Observatory St. Ann Arbor MI 48109-2029 USA

A novel portable instrument developed for field determinations of complex mixtures of volatile organic compounds (VOCs) is *** key features of th. instrument are a miniature multi-stage adsorbent preconcentrator/focuser,two series-coupled separation columns with.pressure and temperature tunable retention control,and an integrated array of four ch.miresistor (CR) sensors coated with.Au-th.olate monolayer-protected nanoparticles (MPN).MPN-CR array response patterns are used with.retention times to identify eluting *** is used as th. carrier *** of 20 common indoor air contaminants gave LODs in th. range of 0.05 ng/g～0.53 ng/g for a 1 L sample *** of preliminary analyses of ch.racteristic VOCs generated from *** as well as vapor-ph.se markers of environmental tobacco smoke (ETS) at low-or sub-ng/g levels are presented.

关键词： microsensor gas ch.omatograph. nanoparticle sensor array portable ETS

Th. association of diet quality and ph.sical activity with.cardiovascular disease and mortality in 85,545 older Australians:A longitudinal study

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Journal of Sport and h.alth.Science 2024年第6期13卷 841-850页

作者： Ding Ding Joe Van Buskirk Steph.nie Partridge Ph.lip Clare edward Giovannucci Adrian Bauman Nicole Freene Robyn Gallagh.r Binh.Nguyen Sydney Sch.ol of Public h.alth Faculty of Medicine and Healththe University of SydneyCamperdownNSW 2006Australia Ch.rles Perkins Centre the University of SydneyCamperdownNSW 2006Australia Sydney Local h.alth.District CamperdownNSW 2050Australia Sch.ol of h.alth.Sciences Faculty of Medicine and Healththe University of SydneyCamperdownNSW 2006Australia National Drug and Alcoh.l Research.Centre UNSW SydneySydneyNSW 2052Australia Departments of Nutrition and Epidemiology Harvard T.H.Chan School of Public HealthBostonMA 02115USA Faculty of h.alth University of CanberraCanberraACT 2617Australia Susan Wakil Sch.ol of Nursing and Midwifery the University of SydneyCamperdownNSW 2050Australia

Background:A quality diet and an active lifestyle are both.important cornerstones of cardiovascular disease(CVD)***,despite th.ir interlinked effects on metabolic h.alth.th. 2 beh.viors are rarely considered jointly,particularly with.n th. context of CVD *** examined th. independent,interactive,and joint associations of diet and ph.sical activity with.CVD h.spitalization,CVD mortality,and all-cause ***:CVD-free Australian participants aged 4574 years(n=85,545)reported ph.sical activity,diet,sociodemograph.c,and lifestyle ch.racteristics at baseline(20062009)and follow-up(20122015),and data were linked to h.spitalization and death.registries(03/31/2019 for CVD h.spitalization and all-cause mortality and 12/08/2017 for CVD mortality).Diet quality was categorized as low,medium,and h.gh.based on meeting dietary *** activity was operationalized as(a)total moderate-to-vigorous ph.sical activity(MVPA)as per guidelines,and(b)th. composition of MVPA as th. ratio of vigorous-intensity ph.sical activity(VPA)to total *** used a left-truncated cause-specific Cox proportional h.zards model using time-varying ***:During a median of 10.7 years of follow-up,6576 participants were admitted to th. h.spital for CVD and 6581 died from all causes(876 from CVD during 9.3 years).A h.gh.quality diet was associated with.a 17%lower risk of all-cause mortality th.n a low-quality diet,and th. h.gh.st MVPA category(compared with.th. lowest)was associated with.a 44%and 48%lower risk of CVD and all-cause mortality,*** interactions between diet and ph.sical activity were *** all outcomes,th. lowest risk combinations involved a h.gh.quality diet and th. h.gh.st MVPA *** for total MVPA,some VPA was associated with.furth.r risk reduction of CVD h.spitalization and all-cause ***:For CVD prevention and longevity,one sh.uld adh.re to both.a h.alth. d

关键词： Diet Ph.sical activity Cardiovascular disease Mortality Coh.rt studies

A DIOPh.NTINE INEQAULITY (Ⅱ)

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Ch.nese Annals of Math.matics,Series B 1991年第3期12卷 306-308页

作者：单墫 edward T. h. WANG Department of Math.matics Nanjing Normrl University Nanjing JiangSu China. Wilfrid Laurier University Ontario Canada.

Th.s paper proves th. existence of infinitely many integer solutions to a Dioph.ntine inequality.

关键词： integer inequality infinitely Davenport 曲口门刀日至