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Glial response in the midcingulate cortex in huntington’s disease

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Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex

MODELING OF sTATIC RECRYsTALLIZATION KINETICs OF Nb-BEARING sTEELs

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Acta Metallurgica sinica(English Letters) 2006年第4期19卷 271-278页

作者： L.Q. Ma Z.Y. Liu s.h. Jiao X.Q. Yuan D. Wu The state Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110004 China Institute of Research and Development Baosteel Co. Ltd Shanghai 201900 China

By using isothermal double hit compression tests and applying the 2% offset method, a new model was developed to predict the microstructural evolution of Nb-bearing steels at temperatures above and below the start temperature of strain-induced precipitation （Tp）. The Tp was developed as a function of true strain, initial austenite grain size and the Nb content. The activation energy of static recrystallization （Qrex） was expressed as a function of the content of different alloy elements. It was found that Nb played the most important role in increasing the value of Qrex, The microstructural observations and measurements confirmed the validity of the model developed in the present investigation.

关键词： Nb-bearing steel static recrystallization Tp (start temperature of strain-induced precipitation) activation energy

Microstructures and Mechanical Properties of Vacuum Brazed Ti3Al/TiAl Joints Using Two Ti-based Filler Metals

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Journal of Materials science & Technology 2016年第4期32卷 372-380页

作者： h.s.Ren h.P.Xiong B.chen s.J.Pang B.Q.chen L.Ye Department of Material science and Engineering Beihang University Beijing 100191 China Welding and Plastic Forming Division Beijing Institute of Aeronautical Materials Beijing 100095 China

Vacuum brazing of Ti3Al-based alloy to TiAI was firstly carried out by Ti-15Cu-15Ni （wt%） filler metal. A continuous Ti3Al band, Ti2Ni and Ti2Cu/Cu3Ti phases formed and the joint showed a shear strength of 53.8-112.4 MPa at room temperature. For the improvement of the joint strength, a new Ti--Zr--Cu--Ni--Fe filler alloy was designed, and its wettability on Ti3AI and TiA1 substrate was studied with the sessile drop method. After holding for 20 rain at 1010 ℃ the Ti--Zr--Cu--Ni--Fe filler showed a low contact angle of 20° and 21° on Ti3Al and TiAI substrate, respectively. The joint brazed with this novel filler mainly con- sisted of Ti-rich area, Ti3Al reaction layer and residual filler metal. With the increase of the brazing temperature, the amount of residual filler metal decreased and the TisAl reaction layer thickened. The Ti3Al/TiA1 joint brazed with Ti--Zr--Cu--Ni--Fe filler exhibited a lower hardness than that brazed with Ti--Cu--Ni filler. The corresponding joints brazed at 950 ℃ for 5 min presented the shear strength of 257.6± 33.6 MPa at room temperature and 304.8 ± 9.9 MPa at 600 ℃.

关键词： BrazingTitanium aluminidesMicrostructureshear strength

Research on the Drawing-up of the Pole Figure for Orientation Analysis of Directional si steel sheet

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Journal of Materials science & Technology 2000年第2期16卷 159-160页

作者： s.h. O (Kim Chaek University of Technology, Kyogu Dong, Central District, Pyongyang, D.P.R. of Korea) Kim Chaek University of Technology Central District Pyongyang Kyogu Dong North Korea

The magnetic property of soft magnetic metals and alloys depends strongly on the crystallo-graphic orientation. In automated equipment for orientation research, the intensity for drawing up the pole figure is measured in detail. The present research shows that the accurate pole figure can be drawn up without measuring concretely the intensity. For directional si steel sheet the measuring step may be 4～5 degrees. In this paper the experimental equation for defo-cusing correction was derived from the experimental data in different specimens with random orientation.

关键词： Figure Research on the Drawing-up of the Pole Figure for Orientation Analysis of Directional si steel sheet si

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan chen Xiu-Qing Qiao Guo hui Bojing sun Dongfang hou Meidi Wang Xueqian Wu Tao Wu Dong-sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University hubei Three Gorges Laboratory College of Chemistry and Materials science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-Cds/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the Cds photocatalyst via the synergistic strategy of phase junction,s.h.ttky junction,and photothermal *** difference in atomic configuration between cubic-Cds （c-Cds） and hexagonal-Cds （h-Cds） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic s.h.ttky junction further extracts the electrons in the hc-Cds phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic h2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of Cds by constructing plasmonic tandem heterogeneous junctions.

关键词： heterojunctions LsPR Photocatalyst Phase junction s.h.ttky junction Photothermal effect

AN ANALYsIs OF sUBGRID-REsOLVED sCALE INTERACTIONs WITh UsE OF REsULTs FROM DIRECT NUMERICAL sIMULATIONs

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Acta Mechanica sinica 1999年第2期15卷 108-115页

作者： h. Gong s. chen G.W. he Environment Safety and Health Division and Center for Nonlinear Studies Los Alamos National Laboratory Los Alamos NM 87545 USA LNM Institute of Mechanics Chinese Academy of Sciences Beijing 100080 China

subgrid nonlinear interaction and energy transfer are analyzed using direct numerical simulations of isotropic turbulence. Influences of cutoff wave number at different ranges of scale on the energetics and dynamics.h.ve been investigated. It is observed that subgrid-subgrid interaction dominates the turbulent dynamics when cut-off wave number locates in the energy-containing range while resolved-subgrid interaction dominates if it is in the dissipation range. By decomposing the subgrid energy transfer and nonlinear interaction into ‘forward’ and ‘backward’ groups according to the sign of triadic interaction, we find that individually each group has very large contribution, but the net of them is much smaller, implying that tremendous cancellation happens between these two groups.

关键词： subgrid nonlinear interaction energy transfer large eddy simulation (LEs) subgrid scale (sGs) direct numerical simulation isotropic turbulence

f(T,B)gravity with statistically fitting of h(z)

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Communications in Theoretical Physics 2023年第9期75卷 79-90页

作者： s.h.shekh N Myrzakulov A Bouali A Pradhan Department of Mathematics S.P.M.Science and Gilani ArtsCommerce CollegeGhatanjiYavatmalMaharashtra 445301India L.N.Gumilyov Eurasian National University Astana 010008Kazakhstan Ratbay Myrzakulov Eurasian International Center for Theoretical Physics Astana010009Kazakhstan Laboratory of Physics of Matter and Radiation Mohammed I UniversityBP 717OujdaMorocco Centre for Cosmology Astrophysics and Space Science(CCASS)GLA UniversityMathura-281406Uttar PradeshIndia

some recent developments(accelerated expansion)in the Universe cannot be explained by the conventional formulation of general *** apply the recently proposed f(T,B)gravity to investigate the accelerated expansion of the *** parametrizing the hubble parameter and estimating the best fit values of the model parameters b_(0),b_(1),and b_(2)imposed from supernovae type la,Cosmic Microwave Background,B aryon Acoustic Oscillation,and hubble data using the Markov Chain Monte Carlo method,we propose a method to determine the precise solutions to the field *** then observe that the model appears to be in good agreement with the observations.A change from the deceleration to the acceleration phase of the Universe is shown by the evolution of the deceleration *** addition,we investigate the behavior of the statefinder analysis,equation of state(Eos)parameters,along with the energy ***,to discuss other cosmological parameters,we consider some wellknown f(T,B)gravity models,specifically,f(T,B)=aT^(b)+cB^(d).Lastly,we find that the considered f(T,B)gravity models predict that the present Universe is accelerating and the Eos parameter behaves like the ACDM model.

关键词： isotropic homogeneous space-time f(T,B)gravity statistical fitting of h(z)data cosmology

OXIDATION BEhAVIOR OF Ni_3Al AND NiAl ALLOYs CONTAINING Fe ADDITIONs

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Acta Metallurgica sinica(English Letters) 1996年第6期9卷 641-645页

作者： J.T.Guo s.h. Wang h. Li W.h. Lai and M.h.Tan(Institute of Metal Research, Chinese Academy of sciences, shenyang 110015, ) Inst of Metal Research Chinese Acad of Sciences Shenyang China

The isothermal oxidation behavior of Ni_3Al containtng 15 at.% Fe and NiAl containing 30 at.% Fe was studied for 100 h at 850, 950, 1050 and 1150℃, respectively. The results show that the oxidation kinetics of the two alloys obey a parabolic law at various temperatures and every parabolic curve possesses two oxidation rate constants. The morphology, microstructure and the chemical composition of the oxide scales were examined using optical metallography, X-ray diffraction analysis, scanning electron microscopy and electron probe microanalysis. The oxide scale of Ni_3Al containing 15 at.% Fe consists mainly of NiO, NiFe_2O_4, and FeAl_2O_4, and that of NiAl containing 30 at.% Fe consists of Fe_2O_3 and (Fe,Ni)Fe_2O_4, contrasting sharply to the oxide scales of pure Ni_3Al and NiAl which consist of Al_2O_3. The oxide scales on the surfaces of Ni_3Al and NiAl containing Fe are not too dense and not too cohesive to the matrix,so their oxidation resistance is not too good.

关键词： oxidation kinetics Ni_3Al-Fe,NiAl-Fe

Microstructure and texture optimization by static recrystallization originating from {10-12} extension twins in a Mg-Gd-Y alloy

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Journal of Materials science & Technology 2020年第24期59卷 44-60页

作者： s.h.Lu D.Wu R.s.chen En-hou han The Group of Magnesium Alloys and Their Applications Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China s.h.ol of Materials science and Engineering University of Science and Technology of ChinaShenyang 110016China

During the deformation of Mg alloys,{10-12}extension twin often contributes to the formation of basal texture but rarely assists the nucleation of recrystallization,i.e.,effective grain refinement,therefore it seems to make against the improvement of formability and mechanical *** this work,{10-12}extension twin has been creatively utilized as a preference nucleation site for static recrystallization(sRX),achieving grain refinement and orientation randomization in a Mg-Gd-Y alloy using multi-directional impact forging(MDIF)and subsequent annealing *** of{10-12}extension twin on sRX behavior has been investigated by annealing treatment at 450℃using quasi-in-situ optical microscopy(OM)and quasi-in-situ electron back-scattering diffraction(EBsD).The microstructural evolution during annealing shows that several sRX gains can nucleate from the grain boundary of untwinned grains,but they only have few influences on the final microstructure due to their limited volume faction and sluggish *** contrast,a large number of sRX gains can initiate from{10-12}extension twin and grow up without the confine of twin ***,they consume their parent grains and make the main contribution to grain *** should be attributed to those pinned{10-12}twin boundary,by interacting with various dislocation slips during the MDIF process,which can operate like grain boundary,store enough strain energy,and promote the nucleation of sRX during *** the other hand,sRX grains usually keep initial random orientation and further randomize the forging texture during annealing treatment.

关键词： Mg-Gd-Y alloy Multi-directional impact forging(MDIF) {10-12}extension twin Quasi-in-situ electron back-scattering diffraction(EBsD) static recrystallization(sRX)