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Journal of materials science & Technology 2019年第6期35卷 1099-1107页

作者： X.Y. Jiao J. Wang C.F. liu Z.P. Guo G.D. Tong s.l. ma Y. Bi Y.F. Zhang s.M. Xiong school of materials science and Engineering Tsinghua University Beijing 100084 China state Key laboratory of Automobile safety and Energy Tsinghua University Beijing China China FAW Foundry Co. Ltd. Changchun 130011. China

The fracture behavior of high-pressure die-cast hypereutectic(HPDC) Al-si alloys was investigated using a high-res.l.tion laboratory CT and synchrotron X-ray tomography with a particular focus on the influence of HPDC microstructure. Res.l.s showed that microstructure of the alloy was mainly comprised of primary s.l.con particles(PsPs), Al dendrites, Cu-rich phases and pores. Most of the coarse PsPs, Cu-rich phases and pores were located in the center of the specimen. The rapid s.l.dification of HPDC led to a heterogeneous microstructural feature. Elemental Cu was enriched in the frontiers of s.l.d-liquid interface, causing the formation of large size dendritic arms. The pores were formed in the interdendrites which endured high stress intensity under high applied stress. Microcracks were originated from pores and further connected Cu-rich phases causing intergranular fracture. PsPs worked as obstacles causing piling-up dislocations in the phase interface. In the regions where large size of PsPs enriched in, PsPs ruptured rather than debonded from matrix, indicating transgranular fractures of PsPs. Microcracks originated around pores and PsPs tended to converge on the main cracks to decrease the energy required for crack propagation.

关键词： Hypereutectic Al-si alloy Primary s.l.con particles Porosity Fracture morphology High pressure die casting

local magnetic moment oscillation 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 li Zhen ma Jin-Hua Gao school of science Hebei University of Science and Technology school of Electronics and Information Zhengzhou University of Light Industry school of Physics and Wuhan National High magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin res.l.ed Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the res.l.ed FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin res.l.ed FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the sTM experiment (***ález-Herrero et al.,science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-lDOs）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

Harnessing therapeutic potential of induced pluripotent stem cell–derived endothelial cells for remyelination in the central nervous system

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Neural Regeneration Research 2025年第6期20卷 1715-1716页

作者： Dan ma Nona Pop Aston Medical school College of Health and Life SciencesAston UniversityBirminghamUK

Myelin is the protective sheath surrounding nerve fibers, and its damage(demyelination) occurs in many central nervous system(CNs) diseases, including multiple s.l.rosis(Ms), traumatic injury, neurodegenerative diseases such as Alzheimer's disease, and mental disorders such as schizophrenia(Barateiro et al., 2016). Repair of damaged myelin sheaths(remyelination) often fails in Ms, leading to neuronal loss and irreversible functional deficits.

关键词： myelin protective diseases

Transient receptor potential channels and calcium dysregulation: a pathogenic duo in Parkinson's disease

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Neural Regeneration Research 2025年第3期20卷 808-810页

作者： Iqira saeed linlin ma Griffith Institute for Drug Discovery Griffith UniversityNathanBrisbaneQLDAustralia school of Environment and science Griffith University NathanBrisbaneQLDAustralia

Parkinson's disease(PD) has a complex and multifactorial pathophysiology. Various studies, conducted both in pre-clinical models and PD patients, have reported a link between the disruption of calcium(Ca^(2+)) homeostasis and the subsequent development of PD. Ca^(2+) regulation is crucial for neuronal survival, differentiation,exocytosis at synapses,gene transcription,and proliferation.

关键词： homeostasis clinical subsequent

EFFECT OF NANOCRYsTAllIZATION ON THE sCAlING OF NiAl AT 1000℃ IN AIR

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Acta Metallurgica sinica(English letters) 2002年第1期15卷 77-80页

作者： s.l. Yang Fuhui Wang s.l. Zhu state Key laboratory for Corrosion and Protection Institute of Metal Research The Chinese Academy of Sciences Shenyang 110016 China

The oxidation behavior of a magnetron sputtered nanocrystalline NiAl coating was investigated at 1000℃ in air. Comparing with cast NiAl and NiAl-0.1at.%Y alloys reveals influences of nanocrystallization as well as yttrium addition on the oxidation behavior of NiAl. Res.l.s show that a phase transformation from metastable θ-Al2O3 to stable a-Al2O3 occurred in scales, which was accelerated by the microcrystallization and retarded by the addition of Y. The addition of Y as well as the nanocrystallization reduced the void formation at the interface between the scale and the substrate.

关键词： nanocrystalline NiAl NiAlY oxidation

s.l.tion‑Processed Thin Film Transparent Photovoltaics:Present Challenges and Future Development

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Nano-Micro letters 2025年第2期17卷 566-600页

作者： Tianle liu Munerah M.s.Almutairi Jie ma Aisling stewart Zhaohui Xing Mengxia liu Bo Hou Yuljae Cho UM-sJTU Joint Institute Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China school of Physics and Astronomy Cardiff UniversityCardiff CF243AAWalesUK Department of Electrical and Computer Engineering Yale UniversityNew HavenCT 06511USA Energy sciences Institute Yale UniversityWest HavenCT 06516USA Future Photovoltaics Research Center Global Institute of Future TechnologyShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Electrical energy is essential for modern society to sustain economic *** soaring demand for the electrical energy,together with an awareness of the environmental impact of foss.l.fuels,has been driving a shift towards the utilization of s.l.r ***,traditional s.l.r energy s.l.tions often require extensive spaces for a panel installation,limiting their practicality in a dense urban *** overcome the spatial constraint,researchers have developed transparent photovoltaics(TPV),enabling windows and facades in vehicles and buildings to generate electric *** TPV advancements are focused on improving both transparency and power output to rival commercially available s.l.con s.l.r *** this review,we first briefly introduce wavelength-and non-wavelengths.l.ctive strategies to achieve *** of merit and theoretical limits of TPVs are discussed to comprehensively understand the status of current TPV *** we highlight recent progress in different types of TPVs,with a particular focus on s.l.tion-processed thin-film photovoltaics(PVs),including colloidal quantum dot PVs,metal halide perovskite PVs and organic *** applications of TPVs are also reviewed,with emphasis on agrivoltaics,smart windows and ***,current challenges and future opportunities in TPV research are pointed out.

关键词： Transparent semiconductors s.l.tion-processable transparent s.l.r cell Emerging s.l.r cell materials Buildingintegrated photovoltaics

Bandgap characteristics analysis and graded design of a novel metamaterial for flexural wave suppression

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Applied mathematics and Mechanics(English Edition) 2025年第1期46卷 1-24页

作者： Fan YANG Zhaoyang ma Xingming GUO shanghai Key laboratory of Mechanics in Energy Engineering Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai University shanghai Institute of Aircraft Mechanics and Control

A novel elastic metamaterial is proposed with the aim of achieving lowfrequency broad bandgaps and bandgap regulation. The band structure of the proposed metamaterial is calculated based on the Floquet-Bloch theorem, and the boundary modes of each bandgap are analyzed to understand the effects of each component of the unit cell on the bandgap formation. It is found that the metamaterials with a low elastic modulus of ligaments can generate flexural wave bandgaps below 300 Hz. Multi-frequency vibrations can be suppressed through the s.l.ctive manipulation of bandgaps. The dual-graded design of metamaterials that can significantly improve the bandgap width is proposed based on parametric studies. A new way that can regulate the bandgap is revealed by studying the graded elastic modulus in the substrate. The res.l.s demonstrate that the nonlinear gradient of the elastic modulus in the substrate offers better bandgap performance. Based on these analyses, the proposed elastic metamaterials can pave the way for multi-frequency vibration control, low-frequency bandgap broadening, and bandgap tuning.

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Efficient and stable Perovskite s.l.r Cells and Modules Enabled by Tailoring Additive Distribution According to the Film Growth Dynamics

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Nano-Micro letters 2025年第2期17卷 387-400页

作者： Mengen ma Cuiling Zhang Yujiao ma Weile li Yao Wang shaohang Wu Chong liu Yaohua mai Institute of New Energy Technology College of Physics&Optoelectronic EngineeringJinan UniversityGuangzhou 510632People’s Republic of China Key laboratory of New semiconductors and Devices of Guangdong Higher Education Institutes Jinan UniversityGuangzhou 510632People’s Republic of China Guangdong Mellow Energy Co. LimitedYuanming RoadZhuhai 519075GuangdongPeople’s Republic of China

Gas quenching and vacuum quenching process are widely applied to accelerate s.l.ent volatilization to induce nucleation of perovskites in blade-coating *** this work,we found these two pre-crystallization processes.l.ad to different order of crystallization dynamics within the perovskite thin film,res.l.ing in the differences of additive *** then tailor-designed an additive molecule named 1,3-bis(4-methoxyphenyl)thiourea to obtain films with fewer defects and holes at the buried interface,and prepared perovskite s.l.r cells with a certified efficiency of 23.75%.Furthermore,this work also demonstrates an efficiency of 20.18%for the large-area perovskite s.l.r module(PsM)with an aperture area of 60.84 cm^(2).The PsM possesses remarkable continuous operation stability for maximum power point tracking of T_(90)>1000 h in ambient air.

关键词： Gas quenching Additive distribution Buried passivation Blade coating Crystallization dynamics

New glucocerebrosidase antibodies can advance research in the field of neurodegenerative disorders

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Neural Regeneration Research 2025年第4期20卷 1085-1086页

作者： Charis ma Krystyna Rytel Yu Chen Ellen sidransky Medical Genetics Branch National Human Genome Research InstituteNational Institutes of HealthBethesdaMDUSA

In medical research,there are times when the introduction of a new tool can launch scientific discovery in new *** antibody development may be considered mundane,in the field of glucocerebrosidase(GCase)research,the dearth of validated antibodies for different applications has impeded progress in studies of disease pathogenesis and therapeutic *** recent introduction of new,rigorously evaluated antibodies can now propel research into the link between glucocerebrosidase and Parkinson’s disease(PD)as well as aspects of the pathobiology of Gaucher disease(Jong et al.,2024).

关键词： antibodies cerebro

Brain-derived neurotrophic factor signaling in the neuromuscular junction during developmental axonal competition and synapse elimination

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Neural Regeneration Research 2025年第2期20卷 394-401页

作者： Josep Tomàs Víctor Cilleros-mañé laia Just-Borràs marta Balanyà-segura Aleksandra Polishchuk laura Nadal marta Tomàs Carolina s.l.era-simón manel M.santafé maria A.lanuza Unitat d’Histologia i Neurobiologia(UHNeurob) Facultat de Medicina i Ciències de la SalutUniversitat Rovira i VirgiliReusSpain

During the development of the nervous system,there is an overproduction of neurons and *** competition between neighboring nerve endings and synapses performing different activity levels.l.ads to their elimination or *** have extensively studied the involvement of the brain-derived neurotrophic factor-Tropomyosin-related kinase B receptor neurotrophic retrograde pathway,at the neuromuscular junction,in the axonal development and synapse elimination process versus the synapse *** purpose of this review is to describe the neurotrophic influence on developmental synapse elimination,in relation to other molecular pathways that we and others have found to regulate this *** particular,we summarize our published res.l.s based on transmitter release analysis and axonal counts to show the different involvement of the presynaptic acetylcholine muscarinic autoreceptors,coupled to downstream serine-threonine protein kinases A and C(PKA and PKC)and voltage-gated calcium channels,at different nerve endings in developmental *** dynamic changes that occur simultaneously in several nerve terminals and synapses converge across a postsynaptic site,influence each other,and require careful studies to individualize the mechanisms of specific *** describe an activity-dependent balance(related to the extent of transmitter release)between the presynaptic muscarinic subtypes and the neurotrophin-mediated TrkB/p75NTR pathways that can influence the timing and fate of the competitive interactions between the different axon *** downstream dis.l.cement of the PKA/PKC activity ratio to lower values,both in competing nerve terminals and at postsynaptic sites,plays a relevant role in controlling the elimination of supernumerary ***,calcium entry through l-and P/Q-subtypes of voltage-gated calcium channels(both channels are present,together with the N-type channel in developing nerve terminals)contributes to red

关键词： acetylcholine release adenosine receptors axonal competition brain-derived neurotrophic factor calcium channels motor end-plate muscarinic acetylcholine receptors postnatal synapse elimination serine kinases tropomyosin-related kinase receptorB