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Performance analysis of deep boreh.le h.at e.ch.ngers for decarbonization of h.ating systems

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Deep Underground Science and engineering 2024年第3期3卷 349-357页

作者： Andreas e.D.Lund Department of electrical engineering and Automation Aalto UniversityEspooFinland

Meeting th. climate.ch.nge mitigation targets will require a substantial sh.ft from fossil to clean fuels in th. h.ating *** pumps with.deep boreh.le e.ch.ngers are a promising solution to reduce *** th. th.rmal beh.vior of deep boreh.le e.ch.ngers(DBh.s)ranging from 1 to 2 km was analyzed for various h.at flow profiles.A strong correlation between th.rmal energy extraction and power output from DBh.s was found,also influenced by th. h.ating profile *** operating time over th. year typically resulted in h.gh.r energy production,wh.le sh.rter one yielded h.gh.r average th.rmal power output,h.gh.igh.ing th. importance of th.0}ice of h.ating strategy and system design for optimal performance of *** breaks in operation for regenerating th. boreh.le,for example,with.waste h.at,proved to be favorable for th. performance yielding an overall h.at output close to th. same as with.continuous extraction of *** results demonstrate th. usefulness of deep boreh.les for dense urban areas with.less available *** th. h.at production from a single DBh. in Finnish.conditions ranges from h.lf up to even a few GWh.a year,th. tech.ology is best suitable for larger h.at loads.

关键词： clean energy deep boreh.le e.ch.ngers energy transition geoth.rmal h.at ground-coupled h.at pump

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Predicting th. Stitch.Density of Finish.d Fabrics Using Weft Blended Grey Knit Fabrics

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Journal of Textile Science and Tech.ology 2024年第3期10卷 51-63页

作者： Kazi Md. elias Moh.mmad Obaidur Rah.an h. M. Zakir h.ssain Department of Ph.sics Jahangirnagar University Savar Bangladesh Jute Textile Wing Bangladesh Jute Research Institute Dhaka Bangladesh

Stitch.density is one of th. critical quality parameters of knit fabrics. Th.s parameter is closely related to oth.r ph.sical quality parameters like fabric weigh., fabric tigh.ness factor, fiber types, blend ratio, yarn diameter and linear density, and fabric structure. Selecting stitch.density (wales per inch. course per inch. is essential to getting th. appropriate fabric weigh. and desired quality. Usually, no rules or assumptions exist to get th. desired stitch.density in th. finish.d fabric stage. Fifteen types of blended knit fabrics were prepared to conduct th. study. Th. varying percentages of cotton, polyester, and elastane are incorporated in th. blends. Regression analysis and regression ANOVA tests were done to predict th. stitch.density of finish.d fabrics. A suitable regression equation is establish.d to get th. desired results. Th. study also found th.t th. stitch.density value in th. finish.d stage fabric decreases by approximately 15% compared to th. stitch.density in th. grey fabric stage. Th.s study will h.lp th. fabric manufacturers get th. finish.d fabric stitch.density in advance by utilizing th. grey fabric stitch.density data set. Th. auth.r expects th.s research.to benefit th. knitting and dyeing industry, new research.rs, and advanced research.rs.

关键词： Wales per Inch Course per Inch Stitch.Density Blended Knit Fabric

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不朽与现代性

世界哲学 2024年第2期 113-126页

作者： [美]h.约纳斯方秋明(译) 林伟毅(译) 不详苏州科技大学政治系福建师范大学马克思主义学院

文章批判了自古以来的两种不朽观,分别为经验性的不朽,包括英名不朽和影响不朽;非经验性的不朽,包括灵魂不朽和实体不朽。这些都被现代性否定了,契合现代性的不朽观是行动不朽,它是自我超越领域的不朽,是指我们存在的某种东西可能通达... 详细信息

文章批判了自古以来的两种不朽观,分别为经验性的不朽,包括英名不朽和影响不朽;非经验性的不朽,包括灵魂不朽和实体不朽。这些都被现代性否定了,契合现代性的不朽观是行动不朽,它是自我超越领域的不朽,是指我们存在的某种东西可能通达了不死性,也就是说我们的世俗行为对超越领域发生影响而产生的不朽。受犹太教中的生命册和诺斯替宗教中上帝的终极形象的启发,文章在这两种象征方式的基础上提出了非全能的上帝形象这个“试验性神话”,认为人类的行为会建构或伤害上帝的形象,只有通过向善的责任行为,维护受到威胁的人类存在,完善上帝的不朽形象,才能获得自身的不朽。

关键词：英名不朽影响不朽灵魂不朽实体不朽行动不朽

Organ Abscission in Plants: With.Special emph.sis on Bell Pepper

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Ph.ton-International Journal of experimental Botany 2024年第7期93卷 1467-1484页

作者： Ramiro Reyes-Castro h.ctor G.Núñez-Palenius Juan I.Valiente-Banuet María e.Sosa-Morales Blanca e.Orosco-Alcalá Rafael Guzmán-Mendoza Graciela M.L.Ruiz-Aguilar Rogelio Costilla-Salazar Life Sciences Division Universidad de GuanajuatoIrapuato36500México Sch.ol of engineering and Sciences Tecnologico de MonterreyQuerétaro76130México

Bell pepper(Capsicum annuum L.),along with.potato and tomato,is one of th. th.ee most cultivated vegetables in th. *** pepper is worldwide accepted due to its ch.racteristics of color,smell,ﬂavor,and *** pepper is also considered a nutritious food due to its vitamin and antioxidant *** Mexico,bell pepper production h.s a h.gh.value because it is grown for th. international markets,particularly th. United States of ***,th. abscission ofﬂowers and fruits is a factor th.t limits th. yield,h.nders th. planning of activities,and causes a variation in th. prices of *** to th. importance of th.s process,in th.s work we did a bibliometric analysis and literature review of scientiﬁc advances for th. understanding of th. abscission pro-cess in plants,and in particular for th. bell ***,we introduce new perspectives th.t would h.lp direct future research.about organ abscission in ***,th. lack of research.th.t would furth.r clarify abscis-sion process in th. bell pepper plant is discussed.

关键词： Capsicum annuum abscission zone plant growth.regulators environmental factors

Optimizing Average electric Power During th.0}rging of Lith.um-Ion Batteries Th.ough.th. Taguch. Meth.d

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Transactions of Tianjin University 2024年第2期30卷 152-166页

作者： Moh. h.S.Alrash.an Department of electrical engineering Al-Hussein Bin Talal UniversityMaan 71110Jordan

In recent times, lith.um-ion batteries h.ve been widely used owing to th.ir h.gh.energy density, extended cycle lifespan, and minimal self-disch.rge rate. Th. design of h.gh.speed rech.rgeable lith.um-ion batteries faces a significant ch.llenge owing to th. need to increase average electric power during ch.rging. Th.s ch.llenge results from th. direct influence of th. power level on th. rate of ch.mical reactions occurring in th. battery electrodes. In th.s study, th. Taguch. optimization meth.d was used to enh.nce th. average electric power during th.0}rging process of lith.um-ion batteries. Th. Taguch. tech.ique is a statistical strategy th.t facilitates th. systematic and efficient evaluation of numerous experimental variables. Th. proposed meth.d involved varying seven input factors, including positive electrode th.ckness, positive electrode material, positive electrode active material volume fraction, negative electrode active material volume fraction, separator th.ckness, positive current collector th.ckness, and negative current collector th.ckness. Th.ee levels were assigned to e.ch.control factor to identify th. optimal conditions and maximize th. average electric power during ch.rging. Moreover, a variance assessment analysis was conducted to validate th. results obtained from th. Taguch. analysis. Th. results revealed th.t th. Taguch. meth.d was an eff ective approach.for optimizing th. average electric power during th.0}rging of lith.um-ion batteries. Th.s indicates th.t th. positive electrode material, followed by th. separator th.ckness and th. negative electrode active material volume fraction, was key factors significantly infl uencing th. average electric power during th.0}rging of lith.um-ion batteries response. Th. identification of optimal conditions resulted in th. improved performance of lith.um-ion batteries, extending th.ir potential in various applications. Particularly, lith.um-ion batteries with.average electric power of 16 W and 17

关键词： Lith.um-ion batteries Average electric power during ch.rging Taguch. meth.d COMSOL Multiph.sics software C rate L27 orth.gonal array

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Microstructure evolution and sh.pe memory beh.viors of Ni_(47)Ti_(44)Nb_(9)alloy subjected to multistep th.rmomech.nical loading with.different prestrain levels

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Journal of Materials Science & Tech.ology 2024年第4期171卷 80-93页

作者： Y.h.Zh.ng h.Li Z.W.Yang X.Liu Q.F.Gu State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Sh.anxi Key Laboratory of h.gh.Performance Precision Forming Tech.ology and equipment Northwestern Polytechnical UniversityXi’an 710072China

Ni_(47)Ti_(44)Nb_(9)sh.pe memory alloy(SMA)is a promising material in th. aerospace field due to its wide transformation *** application of sh.pe memory effect depends on multistep th.rmomech.n-ical loading,viz.,low-temperature deformation and subsequent h.ating to ***-temperature deformation prestrain plays a pivotal role in sh.pe memory properties tailoring of SMA ***,microstructure evolution and deformation mech.nisms of Ni_(47)Ti_(44)Nb_(9)SMA subjected to vari-ous prestrain levels are still *** th.s end,microstructure evolution and sh.pe memory beh.viors of Ni_(47)Ti_(44)Nb_(9)alloy subjected to multistep th.rmomech.nical loading with.prestrain levels of 8%-16%at-28℃(M_(s)+30℃)were *** results demonstrate th.t th. stress-strain curve of th. specimen exh.bits four distinct stages at a maximal prestrain of 16%.Wh.reas stageⅡand stageⅢend at prestrains of∼8%and∼12%,*** stageⅡ,th. stress-induced martensitic transformation is accompanied by th. dislocation slip of th. NiTi matrix andβ-Nb *** stageⅢ,in addition to th. h.gh.r density of dislocations and furth.r growth.of stress-induced martensite variants(SIMVs),(001)compound twins are introduced as a result of th.(001)deformation twinning in stress-induced ***{20-1}martensite twins are gradually introduced in stageⅣ.Correspondingly,after subsequent unloading and h.ating,a h.gh.r density of{114}austenite twins form in th. specimen with.a larger prestrain of 16%.With.increasing prestrain from 8%to 16%,th. recoverable strainε_(re)^(T)upon h.ating increases first and th.n ***ε_(re)^(T)obtains a maximum of 7.03%at 10%prestrain and de-creases to 6.17%at 16%*** increase ofε_(re)^(T)can be attributed to th. formation of new SIMVs,th. furth.r growth.of existing SIMVs,and th. recoverable(001)compound *** th. decrease ofε_(re)^(T)is mainly associated with.th. irrecoverable strain by{20−1}martensite *** effe

关键词： Ni_(47)Ti_(44)Nb_(9)sh.pe memory alloy Wide transformation h.steresis Th.rmomech.nical loading Microstructure evolution Sh.pe memory beh.viors Stress-induced martensitic transformation Deformation twinning

Decorating crystalline YFe_(2-x)Al_(x) on th. Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy as “h.drogen pump” to realize fast de/h.drogenation

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Journal of Materials Science & Tech.ology 2024年第6期173卷 72-79页

作者： L.J.h.ang h.Wang L.Z.Ouyang M.Zh. h.J.Lin Sch.ol of Materials Science and engineering Key Laboratory of Advanced Energy Storage Materials of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510641China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China

Mg-based amorph.us alloys are one of th. potential h.drogen storage materials but suffer from sluggish.deh.drogenation/h.drogenation(de/h.drogenation)*** th.s work,as a new strategy,a h.drogen pump is built on th. surface of amorph.us alloys to solve th.s *** milling crystalline YFe_(2-x)Al_(x) h.drogen storage alloy with.Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy,fine crystalline particles were seeded on amorph.us alloy powder to form a“strawberry”*** to th. TeM observation,a metallurgical bonding boundary formed between th. Mg-based amorph.us matrix and th. Y-Fe-Al crystalline *** microstructure and de/h.drogenation kinetics investigation,th.“h.drogen pump”effect of th. seeded crystalline alloy was confirmed,wh.ch.makes it much.easier for th. h.drogen to dissociate on and diffuse th.ough.th. surface of th. Mg-based amorph.us *** such.effect,th. h.absorption rate of Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy became almost eigh. times faster and it absorbs ~2.8 wt.% in 1 h.at 130℃ under 4.5 MPa-h.(2).Furth.r,fast h.drogenation can even ach.eve at 70℃ and th. low-temperature deh.drogenation kinetics of th. amorph.us h.dride can be also greatly *** present work proves th.t surface modification is of great importance for obtaining Mg-based amorph.us alloy with.ideal h.drogen storage performance.

关键词： h.drogen storage Mg-based amorph.us alloy h.drogen pump Composite structure

A Compreh.nsive Review on Ch.rging Topologies and Power electronic Converter Solutions for electric Veh.cles

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Journal of Modern Power Systems and Clean energy 2024年第3期12卷 675-694页

作者： Abdelfatah.Ali h.ssam h.h.Mousa Mostafa F.Sh.aban Mah.r A.Azzouz Ah.ed S.A.Awad th. Department of electrical engineering American University of Sharjah26666 SharjahUnited Arab Emirates th. Department of electrical engineering South Valley University83523 QenaEgypt th. Department of electrical and Computer engineering University of WindsorWindsorON N9B 3P4 Canada electrical engineering Department Qatar UniversityDoha 2713Qatar Department of electrical and Computer engineering Sultan Qaboos UniversityMuscat123Oman

electric veh.cles(eVs)are becoming more popular worldwide due to environmental concerns,fuel security,and price *** performance of eVs relies on th. energy stored in th.ir batteries,wh.ch.can be.ch.rged using eith.r AC(slow)or DC(fast)***,eVs can also be used as mobile power storage devices using veh.cle-to-grid(V2G)*** electronic converters(PeCs)h.ve a constructive role in eV applications,both.in ch.rging eVs and in ***,th.s paper compreh.nsively investigates th. state of th. art of eV ch.rging topologies and PeC solutions for eV *** examines PeCs from th. point of view of th.ir classifications,configurations,control approach.s,and future research.prospects and th.ir impacts on power *** can be classified into various topologies:DC-DC converters,AC-DC converters,DC-AC converters,and AC-AC *** address th. limitations of traditional DC-DC converters such.as switch.ng losses,size,and h.gh.electromagnetic interference(eMI),resonant converters and multiport converters are being used in h.gh.voltage eV ***,power-train converters h.ve been modified for h.gh.efficiency and reliability in eV *** paper offers an overview of ch.rging topologies,PeCs,ch.llenges with.solutions,and future trends in th. field of th. eV ch.rging station applications.

关键词： Ch.rging station ch.rging topology electric veh.cle power electronic converter veh.cle-to-grid

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Climate refugia along Lake Superior’s sh.res:disjunct arctic-alpine plants rely on cool sh.reline temperatures but are restricted to h.gh.y exposed h.bitat under climate warming

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Journal of Plant ecology 2024年第4期17卷 23-41页

作者： Ash.ey h.llman Scott e.Nielsen Department of Renewable Resources University of AlbertaEdmontonAB T6G 2R3Canada

Climate refugia can serve as a remnant h.bitat or stepping stones for species dispersal under climate *** largest fresh.ater lake by surface area,Lake Superior,USA and Canada,serves as a model system for understanding cooling-mediated local refugia,as its cool water temperatures and wave action h.ve maintained sh.reline h.bitats suitable for south.rn disjunct populations of arctic-alpine plants since ***,we seek to explain spatial patterns and environmental drivers of arctic-alpine plant refugia along Lake Superior’s sh.res,and assess future risk to refugia under moderate(+3.5℃)and warmest(+5.7℃)climate warming ***,we examined h.w th. interactive effects of summer surface water temperatures and wind affected onsh.re temperatures,resulting in areas of cooler ***,we developed an ecological nich. model for th. presence of disjunct arctic-alpine refugia(pooling 1253 occurrences from 58 species)along th. lake’s ***,we fit species distribution models for 20 of th. most common arctic-alpine disjunct species and predicted presence to identify refugia ***,we used th. two climate warming scenarios to predict ch.nges in th. presence of refugia and disjunct *** type,elevation above water,inland distance,July land surface temperature from MODIS/Terra satellite and near-sh.re depth.of water were th. best predictors of disjunct ***,we predicted 2236 km of th. sh.reline(51%)as disjunct refugia h.bitat for at least one species under current conditions,but th.s was reduced to 20% and 7% with.moderate(894 km)and warmest(313 km)climate.ch.nge projections.

关键词： climate refugia disjunct populations lake effect Lake Superior species distribution models