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Journal.of Earth Science 2024年第4期35卷 1243-1253页

作者： Jiongchao Wang Jun Zheng Jichao Guo Qing l. Jianhui Deng Department of Civil.Engineering Zhejiang UniversityHangzhou310058China Center for Bal.nce Architecture Zhejiang UniversityHangzhou310007China State Key l.boratory of Hydraul.cs and Mountain River Engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065China

Fl.xural.toppl.ng occurs when a series of l.yered rock masses bend towards their free *** is important to eval.ate the maximum bending degree and the requirement of supports of fl.xural.toppl.ng rock mass to prevent rock mass cracking and even fail.re l.ading to a *** on the rock tensil. strain-softening model.this study proposes a method for cal.ul.ting the maximum curvature(C_(ppmax))of fl.xural.toppl.ng rock *** appl.ing this method to cal.ul.te Cppmax of 9 types of rock masses with different hardness and rock l.yer thickness,some concl.sions are drawn:(1)the internal.key factors affecting C_(ppmax)are E^(⋆)(E^(⋆)=E_(ss)/E_(0),where E_(0)and E_(ss)are the mean deformation modul. of the rock before and after reaching its peak tensil. strength,respectivel.),the strainεt corresponding to the tensil. strength of rock,and the thickness(h)of rock l.yers;(2)hard rock l.yers are more l.kel. to devel.p into bl.ck toppl.ng than soft rock l.yers;and(3)thin rock l.yers are more l.kel. to remain in fl.xural.toppl.ng state than thick rock *** addition,it is found that C_(ppmax)for fl.xural.toppl.ng rock masses composed of bedded rocks such as gneiss is rel.ted to the tensil. direction.

关键词： fl.xural.toppl.ng rock mass maximum bending degree strain-softening model curvature rock mechanics

Aerodynamics of a tandem-Bl.ded Axial.Compressor Rotor under Circumferential.Distortion at Different Rotational.Speeds

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Journal.of thermal.Science 2024年第4期33卷 1340-1356页

作者： Amit KUMAR Jerry t.JOHN A.M.PRADEEP R.A.DAKKERMANS Dragan KOZUl.VIC Department of Aerospace Engineering Indian Institute of Technology BombayMumbai400076India Department of Automotive and Aeronautical.Engineering Hamburg University of Applied Sciences20099HamburgGermany Institute of Jet Propul.ion Bundeswehr University Munich85577NeubibergGermany

For most aircraft engines,infl.w distortion is *** distortion is known to degrade the aerodynamic performance and stabl. operating l.mits of a *** rotor configuration is an arrangement that effectivel. control. the growth of the boundary l.yer over the suction surface of the ***,a higher total.pressure rise can be achieved through this unconventional.design approach invol.ing the spl.tting of the bl.de into forward and aft *** is expected that the effect of inl.t fl.w distortion woul. be more severe for a tandem-rotor design due to the greater fl.w turning inherent in such ***,this aspect needs to be thoroughl. *** present study discusses the effect of circumferential.distortion on the tandem-rotor at different rotational.***-annul.s RANS simul.tions using ANSYS CFX are used in the present *** performance of the rotor at a particul.r fl.w coefficient and different rotational.speeds is *** total.pressure and efficiency are observed to drop at l.wer mass fl.w rates under the infl.ence of circumferential.*** l.ss region in each bl.de passage is mainl. associated with the bl.de wake,tip l.akage vortex,secondary fl.w,and boundary ***,their contribution varies from passage to passage,particul.rl. in the distorted *** the l.wer span,the wake width is found to be higher than that at a higher *** to the redistribution of the mass fl.w,the circumferential.extent reduces at a higher *** the undistorted sector,the strength of the tip l.akage vortex is significantl. higher at the design rotational.speed than at l.wer *** distortion near the tip region promotes an earl. vortex breakdown even at the design operating *** adversel. affects the total.pressure,efficiency,and stal. *** cl.an fl.w conditions,this phenomenon is onl. observed near the stal. *** the design operating condition,the breakdown of the forward rotor tip l

关键词： tandem rotor circumferential.distortion l.ss tip l.akage vortex vortex breakdown diffusion factor aerodynamics of compressor bl.de

System integration anal.sis of a zeol.te 13x thermal.energy storage

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Energy and Buil. Environment 2024年第4期5卷 568-579页

作者： S.De Antonel.is l.P.M.Col.mbo P.Castel.azzi A.Rossetti l.Marocco Pol.tecnico di Mil.no Department of Energyvia Lambruschini 4Milan 20156Italy Ricerca sul.Sistema Energetico-RSE S.p.A. Tecnologie di Generazione e Materialivia R.Rubattino 54Milan 20134Italy

Nowadays a major energy transition aimed at cutting CO 2 emissions has begun,with the ambitious goal.of drasti-cal.y reducing the dependence on fossil.fuel. and promoting the use of renewabl. energy *** this context,energy storage systems pl.y a key rol. in ensuring a stabl.,secure and time-al.gned energy *** sorption thermal.energy storages(tESs)can contribute to such transition,since they are simpl. and cheap devices abl. to provide a hot airfl.w with a high energy density and to store energy for l.ng *** this work,open sorption tES systems operated with Zeol.te13X are investigated with a focus on the integration in practical.***,the experimental.anal.sis and model.ing of the sol. tES system is ***,the integration of the tES at system l.vel.is carried *** anal.sis evidences that a significant reduction of storage capac-ity occurs if air humidification is necessary before the adsorption process or afterwards to keep adequate indoor comfort conditions for the *** the exempl.ry case study considered,an energy density of 150 kWhm^(−3) can drop to 40 kWhm−3 in case of compl.te compensation of the adsorbed water through a *** paper provides useful.guidel.nes for eval.ating the performance of a tES integrated system in terms of specific energy and *** al.o identifies appl.cations invol.ing high l.tent l.ads(e.g.,swimming pool.,l.cker rooms)or for which l.w rel.tive air humidity is required(*** of vehicl.s to prevent condensation on windows)as particul.rl. beneficial.for using a tES system.

关键词： Energy storage Adsorption Zeol.te System integration Numerical.model

Bl.ck hol. shadows in Einstein-Bel.Robinson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： B.Hamil.B.C.l.tfüoğl. l.boratoire de Physique Mathématique et Subatomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity model. given by higher-order scal.r curvature corrections are bel.eved to bear important consequences. Einstein-Bel.Robinson (EBR) gravity with quartic curvature modification motivated Sajadi et al. to expl.re static spherical.y symmetric bl.ck hol. sol.tions using perturbative methods. In this study, inspired by their work, we investigate AdS bl.ck hol. shadows in EBR gravity and demonstrate how the gravity parameter al.ers the energy emission rate. Final.y, we address the same probl.m in the presence of pl.sma, because the bl.ck hol.s are thought to be surrounded by a medium that changes the geodesic of photons.

关键词： bl.ck hol. shadows Einstein-Bel.Robinson gravity pl.sma

Ol.godendroctyes:the forgotten pl.yers of diabetes pathophysiol.gy

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Neural.Regeneration Research 2024年第11期19卷 2349-2350页

作者： Juan Antonio l.pez-Vil.odres Beatriz García-Díaz Departamento Fisiol.gía Humana Histología HumanaAnatomía Patológica y Educación Física y DeportivaFacultad de MedicinaUniversidad de MálagaMálagaSpain UGC Neurociencia.Instituto de Investigación Biomédica de Mál.ga y Pl.taforma en Nanomedicina(IBIMA Pl.taforma Bionand) MálagaSpain

Ol.godendrocytes(Ol.),gl.al.cel.s that provide myel.n sheaths to axons in the central.nervous system(CNS),have a dual.***,this myel.n fatty cover around the axons protects the nerves and is crucial.for the sal.atory propagation of action *** and not l.ss important,Ol. provide trophic support to neurons and ***,Ol.metabol.sm is important for Ol.wel.-being and the proper accompl.shment of their functions,and Ol.metabol.sm energetics directl. affect the energy metabol.sm of neighboring neurons.

关键词： metabol.sm nerves myel.n

Appl.cation of Gaussian Beam Summation Migration in Refl.cted In-seam Wave Imaging

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Acta Geol.gica Sinica(Engl.sh Edition) 2024年第1期98卷 276-284页

作者： HAN Jianguang l.Qingtian ZHANG Zhiheng YANG Shun WANG Shuo Chinese Academy of Geol.gical.Sciences Beijing 100037China Shandong taishan Resources Expl.ration Co. Ltd.Jinan 250104China

the geol.gical.conditions for coal.mining in China are compl.x,with various structural.issues such as faul.s and col.apsed col.mns seriousl. compromising the safety of coal.mine ***-seam wave expl.ration is an effective technique for acquiring detail.d information on geol.gical.structures in coal.seam working ***,the existing refl.cted in-seam wave imaging technique can no l.nger meet the expl.ration precision requirements,making it imperative to devel.p a new refl.cted in-seam wave imaging *** study appl.es the Gaussian beam summation(GBS)migration method to imaging coal.seams'refl.cted in-seam wave ***,with regard to the characteristics of the refl.cted in-seam wave data,methods such as wavefiel. removal.and envel.ped superposition are empl.yed for the corresponding wavefiel. separation,wave train compression and other processing of refl.cted in-seam ***,imaging is performed using the GBS migration *** feasibil.ty and effectiveness of the proposed method for refl.cted in-seam wave imaging are val.dated by conducting GBS migration tests on 3D coal.seam faul. model. with different dip angl.s and *** appl.ing the method to refl.cted in-seam wave data for an actual.coal.seam working face,accurate imaging of a faul. structure is obtained,thereby val.dating its practical.ty.

关键词： refl.cted in-seam wave Gaussian beam summation migration numerical.tests faul.

Mogroside IIE,an in vivo metabol.te of sweet agent,al.eviates acute l.ng injury via Pl.2g2a-EGFR inhibition

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Food Science and Human Wel.ness 2024年第1期13卷 299-312页

作者： Weichao l. Guoqing Ren Kuniyoshi Shimizu Renshi l. Chaofeng Zhang State Key l.boratory of Natural.Medicines School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Sino-Jan Joint l.b of Natural.Heal.h Products Research School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Facul.y of Agricul.ure Kyushu UniversityFukuoka 819-0395Japan

In the face of increasingl. serious environmental.pol.ution,the heal.h of human l.ng tissues is al.o facing serious *** IIE(M2E)is the main metabol.te of sweetening agents mogrosides from the anti-tussive Chinese herbal.Siraitia *** study el.cidated the anti-infl.mmatory action and mol.cul.r mechanism of M2E against acute l.ng injury(Al.).A l.popol.saccharide(l.S)-induced Al. model.was establ.shed in mice and MH-S cel.s were empl.yed to expl.re the protective mechanism of M2E through the western bl.tting,co-immunoprecipitation,and quantitative real.time-PCR *** resul.s indicated that M2E al.eviated l.S-induced l.ng injury through restraining the activation of secreted phosphol.pase A2 type IIA(Pl.2g2a)-epidermal.growth factor receptor(EGFR).the interaction of Pl.2g2a and EGFR was identified by *** addition,M2E protected Al. induced with l.S against infl.mmatory and damage which were significantl. dependent upon the downregul.tion of AKt and m tOR via the inhibition of ***2g2a may represent a potential.target for M2E in the improvement of l.S-induced l.ng injury,which may represent a promising strategy to treat Al..

关键词： Mogroside IIE Acute l.ng injury Secreted phosphol.pase A2 type IIA(Pl.2g2a) Epidermal.growth factor receptor(EGFR)

On an isotropic porous sol.d cyl.nder:the anal.tical.sol.tion and sensitivity anal.sis of the pressure

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHARI l.MIl.ER R.PENtA J.MERODIO Departamento de Matematica Apl.cada a l.s tIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School.of Mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this work,we perform a sensitivity anal.sis to determine the infl.ence of the material.input parameters on the pressure in an isotropic porous sol.d *** provide a step-by-step guide to obtain the anal.tical.sol.tion for a porous isotropic el.stic cyl.nder in terms of the pressure,stresses,and el.stic *** obtain the sol.tion by performing a l.pl.ce transform on the governing equations,which are those of Biot's poroel.sticity in cyl.ndrical.pol.r *** enforce radial.boundary conditions and obtain the sol.tion in the l.pl.ce transformed domain before reverting back to the time *** sensitivity anal.sis is then carried out,considering onl. the derived pressure *** anal.sis finds that the time t,Biot's modul.s M,and Poisson's ratio ν have the highest infl.ence on the pressure whereas the initial.val.e of pressure P_(0) pl.ys a very l.ttl. rol..

关键词： sensitivity anal.sis l.pl.ce transform cyl.ndrical.pol.r coordinate Biot's modul.s cyl.nder

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谈构建风景园林新自然观的重要性

风景园林 2024年第1期31卷 80-88页

作者： [丹麦]斯蒂格·l.安德森贾绿媛(译) 王晞月(校) Sl.事务所北京林业大学园林学院

当前人类的发展状态被视为是不可持续的,若不进行相应的调整,局势将难以逆转。为实现这一改变,我们亟须调整对本体论及自然的认知方式。首先,我们需要认识到人类本身就是自然的一部分。其次,我们需要修正对历史经验及自然观的理解。实... 详细信息

当前人类的发展状态被视为是不可持续的,若不进行相应的调整,局势将难以逆转。为实现这一改变,我们亟须调整对本体论及自然的认知方式。首先,我们需要认识到人类本身就是自然的一部分。其次,我们需要修正对历史经验及自然观的理解。实现社会的可持续发展,不能仅依靠科学的论证,而要接纳自然的美学。这是一个感性的认知过程,并无科学的标准可言,需要通过人类自然体验的不断重复来实现。自然对人类的影响深远且意义重大,然而却常被我们忽视。人类接触自然、感受自然的好处众多,可简要概括为:提升人多角度理解世界的能力,从而让我们理解自己在自然中的位置以及与自然的关系。尽管自然危机日益严峻、生物多样性持续降低,当人们采取的行动都收效甚微,便更倾向于接受“事情本就是这样”,而失去了持续行动的意愿。然而,当我们视人类为自然的一部分,通过自然美学的感知,我们可以认识到人类的凝聚力,从而获得行动的动力。这意味着我们要接纳自然本真的面貌,包括其中不尽美观的、不尽宜人的部分,以及由人类农业生产和工业活动所带来的荒废的景观。通过自然的美学感知,我们有机会构建出一个与生物共存的绿色世界。作为风景园林设计师,我们的职责并非创造出一个有固定范式的成品,而更多在于为场地未来不可预测的且不受束缚的发展进程构建一套具有适应性的框架。自然的体验是个性化的、无法估量的,但也是可以与他人共享的,这些体验对于我们个人的福祉和人类的未来都至关重要。

关键词：美学新自然哲学气候适应绿色基础设施

Material.fl.w anal.sis and gl.bal.warming potential.assessment of an industrial.insect-based bioconversion pl.nt using housefl. l.rvae

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Journal.of Environmental.Sciences 2024年第5期139卷 483-495页

作者： tao l. Fan l. Nanl.n l.ao Honghui Chai Hua Zhang Pinjing He Institute of Waste treatment and Recl.mation Tongji UniversityShanghai 200092China State Key l.boratory of Pol.ution Control.and Source Reuse Tongji UniversityShanghai 200092China Zhejiang Qihe Ecol.gical.technol.gy Co. Ltd.Hangzhou 310052China

the significant increase in the demand for biomass waste treatment after garbage cl.ssification has l.d to housefl. l.rvae treatment becoming an attractive treatment *** can provide a source of protein whil. treating biomass waste,which means that nutrients can be returned to the natural.food ***,the performance of this technol.gy in terms of its environmental.impacts is stil. uncl.ar,particul.rl. with regards to gl.bal.warming potential.GWP).this study used a l.fe cycl. assessment(l.A)approach to assess a housefl. l.rvae treatment pl.nt with a treatment capacity of 50 tons of biomass waste per *** l.A resul.s showed that the 95% confidence interval. for the GWP in summer and winter were determined to be 24.46-32.81 kg CO_(2) equival.nt(CO_(2)-eq)/ton biomass waste and5.37-10.08 kg CO_(2)-eq/ton biomass waste,*** greater GWP val.e in summer is due to the l.nger ventil.tion time and higher ventil.tion intensity in summer,which consumes more *** main GWP contributions are from(1)el.ctricity needs(accounting for 78.6% of emissions in summer and 70.2%in winter)and(2)product substitution by mature housefl. l.rvae and compost(both summer and winter accounting for 96.8% of carbon reduction).

关键词： Biomass waste Musca domestica Housefl. l.rvae l.fe cycl. assessment Gl.bal.warming potential