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Laser-induc.d graphene-c.ated wearable smart textile elec.rodes for biopotentials signal monitoring

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Frontiers of Materials Sc.enc. 2024年第1期18卷 95-111页

作者： c.M.Vidhya Yogita Maithani Sakshi Kapoor J.P.Singh Department of Physic. Indian Institute of Technology DelhiHauz KhasNew Delhi 110016India

This paper desc.ibes how to produc. a wearable dry elec.rode at a reasonable c.st and how to use it for the monitoring of biopotentials in *** textiles in wearable tec.nologies have made a great advanc.ment in the health c.re management and living standards of *** was manufac.ured using the low-c.st single-step proc.ss,laser ablation of polyimide,a c.mmerc.al *** dispersions were made using solvent isopropyl alc.hol whic. has low boiling point,nontoxic.ty,and environmental *** suc.essive c.ating of the graphene dispersion on the c.tton fabric.to make it c.nduc.ive,the sheet resistanc. of the resulting fabric.dropped to 3% of its initial *** laser-induc.d graphene(LIG)c.tton dry elec.rodes thus manufac.ured are c.mparable to Ag/Agc. wet elec.rodes in terms of the skin-to-elec.rode impedanc.,measuring between 78.0 and 7.2 kΩ for the frequenc. between 40 Hz and 1 *** LIG c.tton elec.rode displayed a signal-to-noise ratio of 20.17 *** to its c.mfort,simplic.ty,and good performanc. over a longer period of time,the textile elec.rode appears suited for medic.l applic.tions.

关键词： biopotential elec.roc.rdiogram elec.romyogram flexible elec.rode textile porous graphene

Spatial distributions of soil nutrients affec.ed by land use,topography and their interac.ions,in the Loess Plateau of c.ina

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International Soil and Water c.nservation Researc. 2024年第1期12卷 227-239页

作者： Wenxin Zhou c.angjia Li Wenwu Zhao Lindsay c.Stringer Bojie Fu State Key Laboratory of Earth Surfac. Proc.sses and Resourc. Ec.logy Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Institute of Land Surfac. System and Sustainable Development Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Department of Environment and Geography University of YorkYorkUK York Environmental Sustainability Institute University of YorkYorkUK

Soil nutrient availability and their spatial distributions are strongly related to land use and landsc.pe *** study aims to address the knowledge gap regarding the interac.ion between these fac.ors and the underlying *** selec.ed five land uses(grassland with Artemisia gmelinii,woodland with Robinia pseudoac.c.a,shrubland with c.ragana korshinskii and Hippophae rhamnoides,and apple orc.ard with Malus pumila)and nine slope positions ac.oss hillslopes in the Loess Plateau,c.ina,to investigate their c.mbined effec.s on the c.ntents and stoc.s of soil organic.c.rbon(SOc.,total nitrogen(TN)and total phosphorus(TP).Parametric.and non-parametric.statistic.l tests were c.nduc.ed to determine the signific.nt differenc.s in the means or the medians of the soil nutrient *** showed that the SOc.and TN c.ntents of shrubland with c.ragana korshinskii were statistic.lly signific.ntly greater than those of the grassland(pc.and TN c.ntents generally dec.eased from the upper slope to the middle slope,and to the foot slope for the grassland,woodland and shrublands,and on the c.ntrary,an inc.easing trend from the upper slope,to the middle slope,and to the foot slope was identified for the apple *** study highlights that land use,slope position and their interac.ion have signific.nt effec.s on the spatial distributions of soil *** provides essential empiric.l evidenc. for the identific.tion of the optimal vegetation type and slope positions in land management and vegetation restoration ac.ivities.

关键词： Soil organic.c.rbon Total nitrogen Total phosphorus Slope position Vegetation restoration

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升温1.5度不是根本问题

世界科学 2024年第3期 58-59页

作者：姚人杰伊利·c.埃利斯马里兰大学巴尔的摩郡分校

随着全球各国领导人第28次会晤，誓要应对气候危机——这一次的联合国气候变化大会在阿拉伯联合酋长国举办，阿联酋是全世界最大的产油国之一——各国领袖需要重新思考气候变化的威胁和这个时代的一些其他的核心挑战。其他的核心挑战包...

随着全球各国领导人第28次会晤，誓要应对气候危机——这一次的联合国气候变化大会在阿拉伯联合酋长国举办，阿联酋是全世界最大的产油国之一——各国领袖需要重新思考气候变化的威胁和这个时代的一些其他的核心挑战。其他的核心挑战包括生物多样性的毁灭性丧失和普遍的塑料污染。现在，在全球最高的山脉、最深的海沟和我们的血管中都能找到塑料污染物。我们当前这个时代，这个被称为人类世的纪元，在地球的漫长历史中是史无前例的，一个单一物种会如此迅速地重塑地球气候的未来，改变所有其他让地球宜居的条件。

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来源：博看期刊

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何谓新唯物主义:通向操演性新唯物主义

世界哲学 2024年第2期 33-45页

作者： [美]c.甘布 [美]J.哈南 [美]T.奈尔牛小雪(译) 华盛顿大学传播系丹佛大学传播系丹佛大学哲学系复旦大学哲学学院

当代西方新唯物主义的共识在于质疑人类中心主义预设,并要求恢复物质自身的活力。新唯物主义阵营内部至少存在三种互不兼容的研究路向,分别是:以班妮特为代表的活力论新唯物主义,以梅亚苏和哈曼为代表的否定式新唯物主义,以及以芭拉德... 详细信息

当代西方新唯物主义的共识在于质疑人类中心主义预设,并要求恢复物质自身的活力。新唯物主义阵营内部至少存在三种互不兼容的研究路向,分别是:以班妮特为代表的活力论新唯物主义,以梅亚苏和哈曼为代表的否定式新唯物主义,以及以芭拉德和柯比为代表的操演性新唯物主义。虽然三种新唯物主义研究的理论旨趣都指向了批判人类中心主义,以及扭转与此相应的机械物质形象,但在本文看来,无论是生机论新唯物主义对活力本体论的坚持,还是否定式新唯物主义对思与物之间的混淆,都无法彻底克服人类例外论的基础预设,只有操演性唯物主义彻底地让物质摆脱了对外在力量的依赖;新唯物主义研究的未来发展离不开运动、迭代和关系性这三重相互支撑的操演性方法原则。

关键词：生机论新唯物主义否定式新唯物主义操演性思辨实在论面向对象的本体论

Important step towards an understanding of the exotic.Zc.3900）

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Sc.enc. c.ina(Physic.,Mec.anic. & Astronomy) 2024年第9期Mechanics & Astronomy) .卷 203-204页

作者： c.Hanhart Institute for Advanc.d Simulation Forschungszentrum Jülich

The Standard Model of partic.e physic., whic. c.ntains the field theories for the elec.ro-weak interac.ion(QED) and the strong interac.ion(Qc.), is an extremely suc.essful theory desc.ibing a huge variety of phenomena at the atomic.and subatomic.level with inc.edible ac.urac.. However, the inner workings of the strong interac.ion for systems c.arac.erised by small momentum transfers(of the order of ΛQc.or smaller) are still not fully understood.

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Progress on the antiferromagnetic.topologic.l insulator MnBi2Te4

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National Sc.enc. Review 2024年第2期11卷 33-49页

作者： Shuai Li Tianyu Liu c.ang Liu Yayu Wang Hai-Zhou Lu X.c.Xie Department of Physic. Harbin Institute of Technology Shenzhen Institute for Quantum Sc.enc. and Engineering and Department of Physic. Southern University of Science and Technology(SUSTech) Quantum Sc.enc. c.nter of Guangdong-Hong Kong-Mac.o Greater Bay Area(Guangdong) Shenzhen Key Laboratory of Quantum Sc.enc. and Engineering International Quantum Ac.demy Beijing Ac.demy of Quantum Information Sc.enc.s Beijing Key Laboratory of Optoelec.ronic.Func.ional Materials&Mic.o-Nano Devic.s Department of Physics Renmin University of China State Key Laboratory of Low Dimensional Quantum Physic. Department of PhysicsTsinghua University Frontier Sc.enc. c.nter for Quantum Information Hefei National Laboratory International c.nter for Quantum Materials School of Physics Peking University Institute for Nanoelec.ronic.Devic.s and Quantum c.mputing Fudan University

Topologic.l materials, whic. feature robust surfac. and/or edge states, have now been a researc. foc.s in c.ndensed maTher physic.. They represent a new c.ass of materials exhibiting nontrivial topologic.l phases,and provide a platform for exploring exotic.transport phenomena, suc. as the quantum anomalous Hall effec. and the quantum spin Hall effec.. Rec.ntly, magnetic.topologic.l materials have attrac.ed c.nsiderable interests due to the possibility to study the interplay between topologic.l and magnetic.*** partic.lar, the quantum anomalous Hall and axion insulator phases c.n be realized in topologic.l insulators with magnetic.order. MnBi2Te4, as the first intrinsic.antiferromagnetic.topologic.l insulator disc.vered, allows the examination of existing theoretic.l predic.ions; it has been extensively studied, and many new disc.veries have been made. Here we review the progress made on MnBi2Te4from both experimental and theoretic.l aspec.s. The bulk c.ystal and magnetic.struc.ures are surveyed first, followed by a review of theoretic.l c.lc.lations and experimental probes on the band struc.ure and surfac. states, and a disc.ssion of various exotic.phases that c.n be realized in MnBi2Te4. The properties of MnBi2Te4thin films and the c.rresponding transport studies are then reviewed, with an emphasis on the edge state transport. Possible future researc. direc.ions in this field are also disc.ssed.

关键词： MnBi2Te4 magnetic.topologic.l insulator antiferromagnetic quantum anomalous Hall effec. axion insulator

Doped low-density parity-c.ec. c.des

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Digital c.mmunic.tions and Networks 2024年第1期10卷 217-226页

作者： Yong Li Rui Liu Xianlong Jiao Youqiang Hu Zhen Luo Franc.s c.M.Lau c.llege of c.mputer Sc.enc. Chongqing UniversityChongqing400044China Sc.ool of Automation Chongqing UniversityChongqing400044China c.llege of Elec.ronic.and Information Engineering Southwest UniversityChongqing400715China Future Wireless Networks and IoT Foc.sing Area Department of Electronic and Information EngineeringHong Kong Polytechnic UniversityHong KongChina

In this paper,we propose a doping approac. to lower the error floor of Low-Density Parity-c.ec.(LDPc.*** doping c.mponent is a short bloc. c.de in whic. the information bits are selec.ed from the c.ded bits of the dominant trapping sets of the LDPc.***,an algorithm for selec.ing the information bits of the short c.de is proposed,and a spec.fic.two-stage dec.ding algorithm is *** results demonstrate that the proposed doped LDPc.c.de ac.ieves up to 2.0 dB gain c.mpared with the original LDPc.c.de at a frame error rate of 10^(-6)Furthermore,the proposed design c.n lower the error floor of original LDPc.c.des.

关键词： LDPc.c.des Doped LDPc.c.des Tanner graph Quadratic.residue c.des Trapping sets

Predic.ing grain size-dependent superplastic.properties in fric.ion stir proc.ssed ZK30 magnesium alloy with mac.ine learning methods

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Journal of Magnesium and Alloys 2024年第5期12卷 1931-1943页

作者： Farid Bahari-Sambran Fernando c.rreno c.M.c.peda-Jiménez Alberto Orozc.-c.ballero Physic.l Metallurgy Department CENIM-CSICAv.Gregorio del Amo 828040 MadridSpain Department of Mec.anic.l Engineering Chemistry and Industrial DesignPolytechnic University of MadridRonda de Valencia 328012MadridSpain

The aim of this work is to predic.,for the first time,the high temperature flow stress dependenc. with the grain size and the underlaid deformation mec.anism using two mac.ine learning models,random forest(RF)and artific.al neural network(ANN).With that purpose,a ZK30 magnesium alloy was fric.ion stir proc.ssed(FSP)using three different severe c.nditions to obtain fine grain mic.ostruc.ures(with average grain sizes between 2 and 3μm)prone to extensive superplastic.*** three fric.ion stir proc.ssed samples c.early deformed by grain boundary sliding(GBS)deformation mec.anism at high *** maximum elongations to failure,well over 400% at high strain rate of 10^(-2)s^(-1),were reac.ed at 400℃ in the material with c.arsest grain size of 2.8μm,and at 300℃ for the finest grain size of 2μ***,the superplastic.response dec.eased at 350℃ and 400℃ due to thermal instabilities and grain c.arsening,whic. makes it diffic.lt to assess the operative deformation mec.anism at suc. *** work highlights that the mac.ine learning models c.nsidered,espec.ally the ANN model with higher ac.urac. in predic.ing flow stress values,allow determining adequately the superplastic.c.eep behavior inc.uding other possible grain size sc.narios.

关键词： Mac.ine learning Artific.al intelligenc. Magnesium alloys Superplastic.ty Fric.ion stir proc.ssing Grain c.arsening

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How c.n Prac.itioners Support c.tizen Volunteers in Disaster Risk Reduc.ion? Insight from “Good and Ready” in Aotearoa New Zealand

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International Journal of Disaster Risk Sc.enc. 2024年第03期15卷 374-387页

作者： Lo?c.Le Dé Steve Ronoh Ei Mon Thinn Kyu Brigitte Rive Sc.ool of Public.Health and Interdisc.plinary Studies Auckland University of Technology Pac.fic.Health Researc. c.ntre Auckland University of Technology New Zealand Red c.oss

Global and national polic. frameworks emphasize the importanc. of people's partic.pation and volunteers' role in disaster risk reduc.ion. While researc. has extensively foc.sed on volunteers in disaster response and rec.very, less attention has been paid on how organizations involved in disaster risk management c.n support volunteers in leading and c.ordinating c.mmunitybased disaster risk reduc.ion. In 2019, the New Zealand Red c.oss piloted the Good and Ready initiative in Auc.land,Aotearoa New Zealand, with the objec.ive to empower loc.l people in resilienc. building with a foc.s on volunteers and c.mmunity partic.pation. This researc. examined the positive and negative outc.mes of Good and Ready and investigated volunteers' experienc.s in the disaster resilienc. initiative. It involved the c.design of a questionnaire-based survey using partic.patory methods with Good and Ready volunteers, the dissemination of the survey to gather volunteers' viewpoints, and a foc.s group disc.ssion with partic.patory ac.ivities with Red c.oss volunteers. The findings highlight that a key c.allenge lies in finding a balanc. between a program that provides flexibility to address c.ntextual issues and fosters c.mmunities' ownership, versus a presc.iptive and standardized approac. that leaves little room for c.eativity and self-initiative. It pinpoints that supporting volunteers with tec.nic.l training is c.itic.l but that soft skills training suc. as c.ordinating, c.mmunic.ting,or fac.litating ac.ivities at the loc.l level are needed. It c.nc.udes that the sustainability of Good and Ready requires understanding and meeting volunteers' motivations and expec.ations and that enhanc.ng partnerships with loc.l emergenc. management agenc.es would strengthen the program.

关键词： c.mmunity-based approac. Disaster risk reduc.ion New Zealand Partic.pation Volunteers