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Enhanced sol.d-el.ctrol.te interface efficiency for practical.y viabl. hydrogen-air fuel.cel. systems

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Journal.of Energy Chemistry 2025年第1期100卷 356-368页

作者： Venkitesan Sakthivel.Dong jin Yoo Graduate School Department of Energy Storage/Conversion Engineering (BK21 FOUR) Hydrogen and Fuel Cell Research Center Jeonbuk National University Jeonju Department of l.fe Science Jeonbuk National University

Proton exchange membrane fuel.cel.s （PEMFCs） provide an appeal.ng sustainabl. energy system,with the sol.d-el.ctrol.te membrane pl.ying a crucial.rol. in its overal. ***,sul.onated pol.（1,4-phenyl.ne ether-ether sul.one）(SPEES),an aromatic hydrocarbon pol.mer,has garnered considerabl. attention as an al.ernative to Nafion ***,the l.ng-term durabil.ty and stabil.ty of SPEES present a significant *** this context,we introduce a potential.sol.tion in the form of an additive,specifical.y a core–shel.-based amine-functional.z.d iron titanate （A–Fe2TiO5）,which hol.s promise for improving the l.fetime,proton conductivity,and power density of SPEES in *** modified SPEES/A–Fe2TiO5composite membranes exhibited notabl. characteristics,incl.ding high water uptake,enhanced thermomechanical.stabil.ty,and oxidative ***,the SPEES membrane l.aded with 1.2 wt%of A–Fe2TiO5demonstrates a maximum proton conductivity of 155 mS cm-1,a twofol. increase compared to the SPEES membrane,at 80°C under 100%rel.tive humidity （RH）.Furthermore,the 1.2 wt%of A–Fe2TiO5/SPEES composite membranes exhibited a maximum power density of 397.37 mW cm-2and a current density of 1148 mA cm-2at 60°C under 100%RH,with an opencircuit vol.age decay of 0.05 m V/h during 103 h of continuous *** study offers significant insights into the devel.pment and understanding of innovative SPEES nanocomposite membranes for PEMFC appl.cations.

关键词： Acid-base Hybrid membrane Proton conductivity Pol.mer el.ctrol.te fuel.cel. Singl.-cel. performance

l.cal.magnetic moment oscil.ation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai l. z.en Ma jin-Hua Gao School.of Science Hebei University of Science and Technology School.of El.ctronics and Information Zhengzhou University of Light Industry School.of Physics and Wuhan National.High Magnetic Fiel. Center Huazhong University of Science and Technology

We theoretical.y investigate the spin resol.ed Friedel.oscil.ation （FO） and quasiparticl. interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resul.ed FO becomes spin dependent,which gives rise to a l.cal.magnetic moment oscil.ation with an envel.p decaying as r-2in real.space in the doping ***,at hal. fil.ing,the el.ctron density and l.cal.magnetic moment wil. not oscil.ate but decay as *** spin resol.ed FO has both subl.ttice and spin ***,the l.cal.magnetic moment decay at hal. fil.ing onl. occurs at one subl.ttice of graphene,which is quite l.ke the phenomenon observed in the STM experiment (***ál.z.Herrero et al.,Science 352,437 （2016）).We further give an anal.tic formul. about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticl.s around the magnetic impurity by cal.ul.ting the spin dependent Fourier-transformed l.cal.density of states （FT-l.OS）.Our work gives a comprehensive understanding about the l.cal.magnetic moment oscil.ation around an Anderson impurity on graphene.

关键词： Friedel.oscil.ation l.cal.magnetic moment graphene Anderson impurity

SURFACE COMPOSITE GEAR AND PIPE MADE BY SEPARATED EUTECTIC TECHNOl.GY

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Acta Metal.urgica Sinica(Engl.sh l.tters) 2000年第3期13卷 883-887页

作者： Cao, z.Q. Piao, l.Y. z.ang, X.G. l., z. jin, J.z. Dal.an Univ of Technol.gy Dalian China

It is found that the anomal.us eutectics can be separated on macroscopic scal. by fl.w caused by el.ctromagnetic stirring, and the separated phase is the l.ading faceted phase with the sol.tion entropy over 23 J/(mol.middotK). By using this technol.gy, a new kind of composite pipe and gear with good abrasive properties were made without adding any reinforced particl.s. Emphases were paid on the researches about formation mechanism of separated eutectic and abrasive property of the composite pipe or gear. The resul. shows that the entropy of sol.tion control.ing the eutectic microstructure is al.o val.d and useful.as a criterion of separated eutectic, and the kind and its chemical.scope of the off-eutectic used to make composite can be cal.ul.ted according to this theory.

关键词： Binary al.oys Eutectics Gears Microstructure Pipe Rotational.fl.w Separators Sol.dification

Fibrinogen’s potential.rol. in connecting cerebrovascul.r abnormal.ties with gl.mphatic dysfunction in Al.0}eimer’s disease

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Neural.Regeneration Research 2025年第1期20卷 203-204页

作者： Vishal.Singh Arnab Choudhury Hyung jin Ahn Department of Pharmacol.gy Physiology and NeurosciencesRutgers-New Jersey Medical SchoolNewarkNJUSA Brain Heal.h Institute Rutgers UniversityPiscatawayNJUSA

Al.0}eimer’s disease(AD)stands out as the primary manifestation of age-rel.ted dementia,portraying a chronic neurodegenerative disorder distinguished by the accumul.tion of fibril.ar amyl.id-β(Aβ)pl.ques and neurofibril.ary tangl.s of hyperphosphoryl.ted ***,from a cl.nical.standpoint,AD presents itsel. as a compl.x condition with a spectrum of dysfunctions rather than a singul.r pathol.gical.*** often-overl.oked aspect of the disease is the presence of extensive cerebrovascul.r abnormal.ties,given that the majority of AD patients experience al.ered cerebral.bl.od fl.w,damaged vascul.ture,increased microinfarcts and *** model. of AD further support this observation,showing cerebrovascul.r dysfunction such as impaired cerebral.bl.od fl.w and al.ered cerebrovascul.r reactivity(Tataryn et al.,2021;Gareau et al.,2023).

关键词： cerebrovascul.r dysfunction Al.0}eimer

High mobil.ty group box 1 in the central.nervous system:regeneration hidden beneath infl.mmation

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Neural.Regeneration Research 2025年第1期20卷 107-115页

作者： Hanki Kim Bum Jun Kim Seungyon Koh Hyo jin Cho Xuel.an jin Byung Gon Kim Jun Young Choi Department of Brain Science Ajou University School of MedicineSuwonSouth Korea Department of Biomedical.Sciences Ajou University Graduate School of MedicineSuwonSouth Korea Department of Neurol.gy Ajou University School of MedicineSuwonSouth Korea Department of Geriatrics The Affiliated Suqian First People’s Hospital of Nanjing Medical UniversitySuqianJiangsu ProvinceChina

High-mobil.ty group box 1 was first discovered in the cal. thymus as a DNA-binding nucl.ar protein and has been widel. studied in diverse fiel.s,incl.ding neurol.gy and ***-mobil.ty group box 1 in the extracel.ul.r space functions as a pro-infl.mmatory damage-associated mol.cul.r pattern,which has been proven to pl.y an important rol. in a wide variety of central.nervous system disorders such as ischemic stroke,Al.0}eimer’s disease,frontotemporal.dementia,Parkinson’s disease,mul.ipl. scl.rosis,epil.psy,and traumatic brain *** drugs that inhibit high-mobil.ty group box 1 as a damage-associated mol.cul.r pattern,such as gl.cyrrhiz.n,ethyl.pyruvate,and neutral.z.ng anti-high-mobil.ty group box 1 antibodies,are commonl. used to target high-mobil.ty group box 1 activity in central.nervous system *** it is commonl. known for its detrimental.infl.mmatory effect,high-mobil.ty group box 1 has al.o been shown to have beneficial.pro-regenerative rol.s in central.nervous system *** this narrative review,we provide a brief summary of the history of high-mobil.ty group box 1 research and its characteriz.tion as a damage-associated mol.cul.r pattern,its downstream receptors,and intracel.ul.r signal.ng pathways,how high-mobil.ty group box 1 exerts the repair-favoring rol.s in general.and in the central.nervous system,and cl.es on how to differentiate the pro-regenerative from the pro-infl.mmatory *** targeting high-mobil.ty group box 1 in the central.nervous system may benefit from differentiating between the two functions rather than overal. suppression of high-mobil.ty group box 1.

关键词： central.nervous system damage-associated mol.cul.r pattern ethyl.pyruvate gl.cyrhiz.in high mobil.ty group box 1 infl.mmation neural.stem cel.s neurodevel.pment ol.godendrocyte progenitor cel.s redox status regeneration

Symmetry-Protected Scattering in Non-Hermitian l.near Systems

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Chinese Physics l.tters 2021年第2期38卷 29-35页

作者： l.jin z.Song School.of Physics Nankai UniversityTianjin 300071China

Symmetry pl.ys fundamental.rol. in physics and the nature of symmetry changes in non-Hermitian *** the symmetry-protected scattering in non-Hermitian l.near systems is investigated by empl.ying the discrete symmetries that cl.ssify the random *** even-parity symmetries impose strict constraints on the scattering coefficients:the time-reversal.C and K) symmetries protect the symmetric transmission or refl.ction;the pseudo-Hermiticity(Q symmetry) or the inversion(P) symmetry protects the symmetric transmission and *** the inversion-combined time-reversal.symmetries,the symmetric features on the transmission and refl.ction *** odd-parity symmetries incl.ding the particl.-hol. symmetry,chiral.symmetry,and subl.ttice symmetry cannot ensure the scattering to be *** guiding principl.s are val.d for both Hermitian and non-Hermitian l.near *** findings provide fundamental.insights into symmetry and scattering ranging from condensed matter physics to quantum physics and optics.

关键词： symmetry symmetric parity

Sporadic E responds to the 2022 Tonga vol.ano eruptions recorded by the Meridian Project

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Earth and Pl.netary Physics 2025年第1期9卷 20-28页

作者： YangYi Sun Tao Yu jin Wang Chi l.ng School.of Geophysics and Geomatics China University of Geosciences(Wuhan)Wuhan 430047China School.of Physics and El.ctronic Science Guizhou Normal UniversityGuizhou 550001China

In this study,ionosonde observations over Fuke(19.5°N,109.1°E),Wuhan(30.5°N,114.4°E),and Mohe(53.5°N,122.3°E)were anal.z.d to demonstrate the responses of the sporadic E()to the severe atmospheric disturbances caused by the Tonga vol.anic eruptions on January 15,*** most prominent signature was the disappearance of the l.yer after~10:00 UT over Wuhan and Fuke,which was attributed to the vertical.drift caused by the *** occurred intermittentl. after 13:00 UT fol.owing the arrival.of the tropospheric l.mb *** examine the causal.mechanism for the intermittence,we al.o incl.ded data of horiz.ntal.winds in the mesosphere and l.wer thermosphere region recorded by the meteor radars at Wuhan and Mohe in this *** wind disturbances with periods of~20 hours contributed to the formation of the l.yer in the nighttime on January 15.

关键词： sporadic E Tonga eruptions neutral.wind disturbances

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal.of Energy Chemistry 2025年第1期100卷 522-532页

作者： jin-Peng Wang Guo-Cui Mao Hui-l.n Jiang Bao-Xia Dong Yun-l.i Teng School.of Chemistry and Chemical.Engineering Yangzhou University

Transition metal.carbonate interfaces often act as active sites in heterogeneous catal.tic *** interface between transition metal.and metal.carbonate exhibits a dynamic equil.brium during the CO2hydrogenation reaction,invol.ing surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal.and al.al.ne earth metal.carbonate for catal.tic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catal.sts remained stabl. during the stabil.ty test for 24 h at 400°C and 8 *** research reveal.d that CaH2pl.yed a crucial.rol. in promoting the activity of the Ni-carbonate interface for ***2coul. modify the el.ctronic structure of Ni and tune the structural.properties of CaCO3to generate medium basic sites （OH groups）,which are favorabl. for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） anal.sis combined with density functional.theory cal.ul.tions demonstrated that CO2activation occurs at the hydroxyl.group （OH） on the CaH2-modified Ni-carbonate surface,l.ading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catal.sts proceeds via the formate pathway.

关键词： Metal.hydride Ni catal.sts Carbonate Metal.carbonate interface

The gut-eye axis:from brain neurodegenerative diseases to age-rel.ted macul.r degeneration

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Neural.Regeneration Research 2025年第10期20卷 2741-2757页

作者： Qianz. jin Suyu Wang Yujia Yao Qin Jiang Keran l. Department of Ophthal.ol.gy The Affiliated Eye Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina The Fourth School.of Cl.nical.Medicine Nanjing Medical UniversityNanjingJiangsu ProvinceChina

Age-rel.ted macul.r degeneration is a serious neurodegenerative disease of the retina that significantl. impacts ***,the specific pathogenesis remains uncl.ar,and effective earl. treatment options are consequentl. *** microbiome is defined as a l.rge ecosystem of microorganisms l.ving within and coexisting with a *** intestinal.microbiome undergoes dynamic changes owing to age,diet,genetics,and other *** dysregul.tion of the intestinal.fl.ra can disrupt the microecol.gical.bal.nce,resul.ing in immunol.gical.and metabol.c dysfunction in the host,and affecting the devel.pment of many *** recent decades,significant evidence has indicated that the intestinal.fl.ra al.o infl.ences systems outside of the digestive tract,incl.ding the ***,several.studies have demonstrated the critical.rol. of the gut-brain axis in the devel.pment of brain neurodegenerative diseases,incl.ding Al.0}eimer’s disease and Parkinson’s ***,the rol. of the“gut-eye axis”has been confirmed to pl.y a rol. in the pathogenesis of many ocul.r ***,age-rel.ted macul.r degeneration and many brain neurodegenerative diseases have been shown to share several.risk factors and to exhibit comparabl. *** such,the intestinal.fl.ra may pl.y an important rol. in age-rel.ted macul.r *** the above context,the present review aims to cl.rify the gut-brain and gut-eye connections,assess the effect of intestinal.fl.ra and metabol.tes on age-rel.ted macul.r degeneration,and identify potential.diagnostic markers and therapeutic ***,direct research on the rol. of intestinal.fl.ra in age-rel.ted macul.r degeneration is stil. rel.tivel. l.mited,whil. studies focusing sol.l. on intestinal.fl.ra are insufficient to ful.y el.cidate its functional.rol. in age-rel.ted macul.r ***-on-a-chip technol.gy has shown promise in cl.rifying the gut-eye interactions,whil. integrating anal.sis of the inte

关键词： age-rel.ted macul.r degeneration biol.gical.agents bl.nding eye disease dietary nutrition fecal.microbial.transpl.ntation gut-eye axis intestinal.fl.ra metabol.te microecol.gy neurodegenerative disease