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Syntheses,crystal structures,catalytic and anti-wear properties of zinc(Ⅱ),nickel(Ⅱ)and cadmium(Ⅱ)complexes constructed from a terphenyl-tricarboxylate ligand
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作者 ZHAO Zhenghua LIU Yufeng +2 位作者 ZHANG Qing SHI Zifa GU Jinzhong 《无机化学学报》 北大核心 2026年第1期170-180,共11页
Three zinc(Ⅱ),nickel(Ⅱ),and cadmium(Ⅱ)complexes,namely[Zn(μ-Htpta)(py)_(2)]n(1),[Ni(H_(2)biim)2(H_(2)O)2][Ni(tpta)(H_(2)biim)2(H_(2)O)]2·3H_(2)O(2),and[Cd_(3)(μ4-tpta)2(μ-dpe)_(3)]_(n)(3),have been construc... Three zinc(Ⅱ),nickel(Ⅱ),and cadmium(Ⅱ)complexes,namely[Zn(μ-Htpta)(py)_(2)]n(1),[Ni(H_(2)biim)2(H_(2)O)2][Ni(tpta)(H_(2)biim)2(H_(2)O)]2·3H_(2)O(2),and[Cd_(3)(μ4-tpta)2(μ-dpe)_(3)]_(n)(3),have been constructed hydrothermally at 160℃ using H_(3)tpta([1,1':3',1″-terphenyl]-4,4',5'-tricarboxylic acid),py(pyridine),H_(2)biim(2,2'-biimidazole),dpe(1,2-di(4-pyridyl)ethylene),and zinc,nickel and cadmium chlorides,resulting in the formation of stable crystalline solids which were subsequently analyzed using infrared spectroscopy,element analysis,thermogravimetric analysis,as well as structural analyses conducted via single-crystal X-ray diffraction.The findings from these single-crystal Xray diffraction studies indicate that complexes 1-3 form crystals within the monoclinic system P2_(1)/c space group(1)or triclinic system P1 space group(2 and 3),and possess 1D,0D,and 3D structures,respectively.Complex 1 demonstrated substantial catalytic efficiency and excellent reusability as a heterogeneous catalyst in the reaction of Knoevenagel condensation under ambient temperature conditions.In addition,complex 1 also showcased notable anti-wear performance when used in polyalphaolefin synthetic lubricants.CCDC:2449810,1;2449811,2;2449812,3. 展开更多
关键词 COMPLEXES tricarboxylic acid catalytic properties Knoevenagel condensation reaction anti-wear performance
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Microstructure and Properties of Mg/Fe Dissimilar Metal Joints Fabricated by Magnetic Pulse Welding
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作者 Xie Jilin Li Shimeng +3 位作者 Wang Yaping Liu Dongya Liu Xiaofang Chen Yuhua 《稀有金属材料与工程》 北大核心 2026年第1期67-77,共11页
Dissimilar AZ31B magnesium alloy and DC56D steel were welded via AA1060 aluminum alloy by magnetic pulse welding.The effects of primary and secondary welding processes on the welded interface were comparatively invest... Dissimilar AZ31B magnesium alloy and DC56D steel were welded via AA1060 aluminum alloy by magnetic pulse welding.The effects of primary and secondary welding processes on the welded interface were comparatively investigated.Macroscopic morphology,microstructure,and interfacial structure of the joints were analyzed using scanning electron microscope,energy dispersive spectrometer,and X-ray diffractometer(XRD).The results show that magnetic pulse welding of dissimilar Mg/Fe metals is achieved using an Al interlayer,which acts as a bridge for deformation and diffusion.Specifically,the AZ31B/AA1060 interface exhibits a typical wavy morphology,and a transition zone exists at the joint interface,which may result in an extremely complex microstructure.The microstructure of this transition zone differs from that of AZ31B magnesium and 1060 Al alloys,and it is identified as brittle intermetallic compounds(IMCs)Al_(3)Mg_(2) and Al_(12)Mg_(17).The transition zone is mainly distributed on the Al side,with the maximum thickness of Al-side transition layer reaching approximately 13.53μm.Incomplete melting layers with varying thicknesses are observed at the primary weld interface,while micron-sized hole defects appear in the transition zone of the secondary weld interface.The AA1060/DC56D interface is mainly straight,with only a small number of discontinuous transition zones distributed intermittently along the interface.These transition zones are characterized by the presence of the brittle IMC FeAl_(3),with a maximum thickness of about 4μm. 展开更多
关键词 magnetic pulse welding mechanical properties MICROSTRUCTURE fracture morphology primary and secondary welding
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Basic Mechanical Properties and Microstructure of Sustainable Recycled Coral Aggregate Concrete
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作者 WANG Lei LU Jiahui +5 位作者 ZHANG Jiwang YI Jin ZHU Dexiang HUANG Dongming QIN Yan LI Yajie 《Journal of Wuhan University of Technology(Materials Science)》 2026年第1期217-226,共10页
Crushing waste coral concrete into recycled aggregates to create recycled coral aggregate concrete(RCAC)contributes to sustainable construction development on offshore islands and reefs.To investigate the impact of re... Crushing waste coral concrete into recycled aggregates to create recycled coral aggregate concrete(RCAC)contributes to sustainable construction development on offshore islands and reefs.To investigate the impact of recycled coral aggregate on concrete properties,this study performed a comprehensive analysis of the physical properties of recycled coral aggregate and the basic mechanical properties and microstructure of RCAC.The test results indicate that,compared to coral debris,the crushing index of recycled coral aggregate was reduced by 9.4%,while porosity decreased by 33.5%.Furthermore,RCAC retained the early strength characteristics of coral concrete,with compressive strength and flexural strength exhibiting a notable increase as the water-cement ratio decreased.Under identical conditions,the compressive strength and flexural strength of RCAC were 12.7% and 2.5% higher than coral concrete's,respectively,with porosity correspondingly reduced from 3.13% to 5.11%.This enhancement could be attributed to the new mortar filling the recycled coral aggregate.Scanning electron microscopy(SEM)analysis revealed three distinct interface transition zones within RCAC,with the‘new mortar-old mortar’interface identified as the weakest.The above findings provided a reference for the sustainable use of coral concrete in constructing offshore islands. 展开更多
关键词 recycled coral aggregate sustainable concrete mechanical properties MICROSTRUCTURE interfacial transition zone
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Morphological characteristics and corresponding functional properties of homeostatic human microglia
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作者 Pariya Khodabakhsh Olga Garaschuk 《Neural Regeneration Research》 2026年第3期1112-1113,共2页
Microglia,the resident immune cells of the central nervous system,exhibit a wide array of functional states,even in their so-called“homeostatic”condition,when they are not actively responding to overt pathological s... Microglia,the resident immune cells of the central nervous system,exhibit a wide array of functional states,even in their so-called“homeostatic”condition,when they are not actively responding to overt pathological stimuli.These functional states can be visualized using a combination of multi-omics techniques(e.g.,gene and protein expression,posttranslational modifications,mRNA profiling,and metabolomics),and,in the case of homeostatic microglia,are largely defined by the global(e.g.,genetic variations,organism’s age,sex,circadian rhythms,and gut microbiota)as well as local(specific area of the brain,immediate microglial surrounding,neuron-glia interactions and synaptic density/activity)signals(Paolicelli et al.,2022).While phenomics(i.e.,ultrastructural microglial morphology and motility)is also one of the key microglial state-defining parameters,it is known that cells with similar morphology can belong to different functional states. 展开更多
关键词 functional properties multi omics techniques protein expressionposttranslational modificationsmrna profilingand homeostatic human microglia morphological characteristics resident immune cells homeostatic microgliaare protein expression
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Phase Evolution and Properties of Transparent TiO_(2)-modified YLAS Glass-ceramics
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作者 HE Dongsheng LI Xianzi +2 位作者 YANG Penghui WANG Yanhang HAN Bin 《Journal of Wuhan University of Technology(Materials Science)》 2026年第1期33-44,共12页
The substitution of TiO_(2)for SiO_(2)in Y_(2)O_(3)-Li_(2)O-Al_(2)O_(3)-SiO_(2)(YLAS)glass-ceramics significantly altered their crystallization behavior and properties.Introducing TiO_(2)reduced the glass transition t... The substitution of TiO_(2)for SiO_(2)in Y_(2)O_(3)-Li_(2)O-Al_(2)O_(3)-SiO_(2)(YLAS)glass-ceramics significantly altered their crystallization behavior and properties.Introducing TiO_(2)reduced the glass transition temperature while increasing the crystallization peak temperature and lowering activation energy,which facilitated crystallization.The crystal growth shifted from three-dimensional to two-dimensional,and the primary phases transitioned from Al_(9.83)Zr_(0.17)and Y_(2)Si_(2)O_(7)to Y_(4.67)(SiO_(4))_(3)O,though crystal morphology remained unchanged.Grain size increased with higher crystallization temperatures.Mechanically,Vickers hardness slightly decreased(from 796 to 784 Hv),while bending strength improved(from 141 to 146 MPa),suggesting that TiO_(2)enhanced toughness without compromising structural integrity.The strength of the glass can be further improved through two-step ion exchange,but excessive crystallization can lead to cracks on the glass surface due to excessive surface compressive stress,resulting in a decrease in bending strength.These findings provide critical insights for optimizing YLAS glass-ceramics for advanced applications. 展开更多
关键词 Y_(2)O_(3)-Li_(2)O-Al_(2)O_(3)-SiO_(2)glass-ceramics microstructure CRYSTALLIZATION mechanical properties
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Enhanced magnetic properties in a Fe-based amorphous alloy via ultrasonic vibration rapid processing 被引量:1
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作者 Hong-Zhen Li Sajad Sohrabi +4 位作者 Xin Li Lu-Yao Li Jiang Ma Huan-Lin Peng Chao Yang 《Rare Metals》 2025年第4期2853-2860,共8页
In general,the rapid growth of α-Fe clusters is a challenge in high Fe-content Fe-based amorphous alloys,negatively affecting their physical properties.Herein,we introduce an efficient and rapid post-treatment techni... In general,the rapid growth of α-Fe clusters is a challenge in high Fe-content Fe-based amorphous alloys,negatively affecting their physical properties.Herein,we introduce an efficient and rapid post-treatment technique known as ultrasonic vibration rapid processing(UVRP),which enables the formation of high-density strong magnetic α-Fe clusters,thereby enhancing the soft magnetic properties of Fe_(78)Si(13)B_(9) amorphous alloy ribbon. 展开更多
关键词 enhancing soft magnetic properties soft magnetic properties physical propertieshereinwe Fe based amorphous alloy amorphous alloy ribbon ultrasonic vibration rapid processing uvrp which Fe clusters ultrasonic vibration rapid processing
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Crystal structure,thermal analysis,and luminescence properties of six heterocyclic lanthanide complexes
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作者 SONG Zihe ZHAO Jinjin +1 位作者 REN Ning ZHANG Jianjun 《无机化学学报》 北大核心 2026年第1期181-192,共12页
Six new lanthanide complexes:[Ln(3,4-DEOBA)3(4,4'-DM-2,2'-bipy)]2·2C_(2)H_(5)OH,[Ln=Dy(1),Eu(2),Tb(3),Sm(4),Ho(5),Gd(6);3,4-DEOBA-=3,4-diethoxybenzoate,4,4'-DM-2,2'-bipy=4,4'-dimethyl-2,2'... Six new lanthanide complexes:[Ln(3,4-DEOBA)3(4,4'-DM-2,2'-bipy)]2·2C_(2)H_(5)OH,[Ln=Dy(1),Eu(2),Tb(3),Sm(4),Ho(5),Gd(6);3,4-DEOBA-=3,4-diethoxybenzoate,4,4'-DM-2,2'-bipy=4,4'-dimethyl-2,2'-bipyridine]were successfully synthesized by the volatilization of the solution at room temperature.The crystal structures of six complexes were determined by single-crystal X-ray diffraction technology.The results showed that the complexes all have a binuclear structure,and the structures contain free ethanol molecules.Moreover,the coordination number of the central metal of each structural unit is eight.Adjacent structural units interact with each other through hydrogen bonds and further expand to form 1D chain-like and 2D planar structures.After conducting a systematic study on the luminescence properties of complexes 1-4,their emission and excitation spectra were obtained.Experimental results indicated that the fluorescence lifetimes of complexes 2 and 3 were 0.807 and 0.845 ms,respectively.The emission spectral data of complexes 1-4 were imported into the CIE chromaticity coordinate system,and their corre sponding luminescent regions cover the yellow light,red light,green light,and orange-red light bands,respectively.Within the temperature range of 299.15-1300 K,the thermal decomposition processes of the six complexes were comprehensively analyzed by using TG-DSC/FTIR/MS technology.The hypothesis of the gradual loss of ligand groups during the decomposition process was verified by detecting the escaped gas,3D infrared spectroscopy,and ion fragment information detected by mass spectrometry.The specific decomposition path is as follows:firstly,free ethanol molecules and neutral ligands are removed,and finally,acidic ligands are released;the final product is the corresponding metal oxide.CCDC:2430420,1;2430422,2;2430419,3;2430424,4;2430421,5;2430423,6. 展开更多
关键词 lanthanide complexes fluorescence property crystal structure thermal analysis
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Effects of CNTs Addition on Microstructure and Properties of Pure Copper Prepared by LPBF
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作者 Yang Laixia Zhang Longbo +4 位作者 Xie Qidong Zhang Yanze Yang Mengjia Mao Feng Chen Zhen 《稀有金属材料与工程》 北大核心 2026年第1期27-34,共8页
Copper manufactured by laser powder bed fusion(LPBF)process typically exhibits poor strength-ductility coordination,and the addition of strengthening phases is an effective way to address this issue.To explore the eff... Copper manufactured by laser powder bed fusion(LPBF)process typically exhibits poor strength-ductility coordination,and the addition of strengthening phases is an effective way to address this issue.To explore the effects of strengthening phases on Cu,Cu-carbon nanotubes(CNTs)composites were prepared using LPBF technique with Cu-CNTs mixed powder as the matrix.The formability,microstructure,mechanical properties,electrical conductivity,and thermal properties were studied.The result shows that the prepared composites have high relative density.The addition of CNTs results in inhomogeneous equiaxed grains at the edges of the molten pool and columnar grains at the center.Compared with pure copper,the overall mechanical properties of the composite are improved:tensile strength increases by 52.8%and elongation increases by 146.4%;the electrical and thermal properties are also enhanced:thermal conductivity increases by 10.8%and electrical conductivity increases by 12.7%. 展开更多
关键词 laser powder bed fusion(LPBF) Cu-CNTs composites mechanical property thermal conductivity
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Effect of Nb Addition on Tensile and Wear Properties of 18Ni300 Mold Steel Fabricated by LPBF
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作者 Jian Changhuang Yang Yang +5 位作者 Wang Chengyong Yu Bowen Niu Liuhui Hu Gaofeng Liu Jianye Huang Zhenghua 《稀有金属材料与工程》 北大核心 2026年第1期18-26,共9页
Laser powder bed fusion(LPBF)is highly suitable for forming 18Ni300 mold steel,thanks to its excellent capability in manufacturing complex shapes and outstanding capacity for regulating microstructures.It is widely us... Laser powder bed fusion(LPBF)is highly suitable for forming 18Ni300 mold steel,thanks to its excellent capability in manufacturing complex shapes and outstanding capacity for regulating microstructures.It is widely used in fields such as injection molding,die casting,and stamping dies.Adding reinforcing particles into steel is an effective means to improve its performance.Nb/18Ni300 composites were fabricated by LPBF using two kinds of Nb powders with different particle sizes,and their microstructures and properties were studied.The results show that the unmelted Nb particles are uniformly distributed in the 18Ni300 matrix and the grains are refined,which is particularly pronounced with fine Nb particles.In addition,element diffusion occurs between the particles and the matrix.The main phases of the base alloy are α-Fe and a small amount of γ-Fe.With the addition of Nb,part of the α-Fe is transformed into γ-Fe,and unmelted Nb phases appear.The addition of Nb also enhances the hardness and wear resistance of the composites but slightly reduces their tensile properties.After aging treatment,the molten pools and grain boundaries become blurred,grains are further refined,and the interfaces around the particles are thinned.The aging treatment also promotes the formation of reverted austenite.The hardness,ultimate tensile strength,and volumetric wear rate of the base alloy reach 51.9 HRC,1704 MPa,and 17.8×10^(-6) mm^(3)/(N·m),respectively.In contrast,the sample added with fine Nb particles has the highest hardness(56.1 HRC),ultimate tensile strength(1892 MPa)and yield strength(1842 MPa),and the volume wear rate of the sample added with coarse Nb particles is reduced by 90%to 1.7×10^(-6) mm^(3)/(N·m). 展开更多
关键词 laser powder bed fusion 18Ni300 mold steel Nb addition microstructure mechanical property
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Structural,dielectric and magnetic properties of terbium doped strontium spinel ferrite(SrFe_(2)O_(4))synthesized by sol-gel method
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作者 Rifat Shaheen Hafeez Ullah +7 位作者 M.M.Moharam Ahmad M.Saeedi Ebraheem Abdu Musad Saleh Muhammad Ijaz Adel A.El-Zahhar Gamil A.A.M.Al-Hazmi Sana Ullah Asif Hafiz Muhammad Tahir 《Journal of Rare Earths》 2025年第2期337-344,I0004,共9页
In this research work,sol-gel technique was employed to prepare the strontium based spinel ferrite nanoparticles(SrFe_(2)O_(4))with different ratios of terbium(Tb).Different characterization techniques were used to in... In this research work,sol-gel technique was employed to prepare the strontium based spinel ferrite nanoparticles(SrFe_(2)O_(4))with different ratios of terbium(Tb).Different characterization techniques were used to investigate the structural,morphological,dielectric and magnetic properties of the prepared samples.X-ray diffraction(XRD)result suggests that face-centered cube spinel nanocrystalline structure is formed.Crystallite size of the SrFe_(2)O_(4)decreases with rising of Tb ratio.The morphology,shape and size of the SrFe_(2)O_(4)were examined by scanning electron microscopy(SEM)analysis and results reveal inhomogeneous distributions of the nanostructures with high agglomeration.The electrical resistivity of the SrFe_(2)O_(4)increases with rising of Tb ratio,which is confirmed from the cyclic voltammetry.It is observed that dielectric constant of all the samples decreases with the increasing frequency range.It is determined that the dielectric constants of the spinel ferrites are frequency dependent and decrease with increasing the frequency of applied electric field.The magnetic behavior of SrFe_(2)O_(4)with different ratios of Tb was studied and it is found that the saturation magnetization values of samples decrease with increase in the substitution of Tb^(3+)at octahedral sites for Fe^(3+).This decrease in the values of M_(s) is also attributed to spin at surface of nanoparticles. 展开更多
关键词 SOL-GEL Structural properties Dielectric properties Magnetic properties Spinel ferrites Rare earths
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First-principles calculations to investigate the structural,elastic and thermodynamic properties of full-Heusler MgXY_(2)(X=Zn,Cd,Y=Ag,Au,Cu)compounds
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作者 TahsinÖzer MuratÇanlı +1 位作者 Nihat Arıkan Ali IhsanÖztürkd 《Journal of Magnesium and Alloys》 2025年第5期2295-2306,共12页
Magnesium and its compounds are recognized as favorable materials for structural uses,primarily due to their lightweight nature and remarkable specific strength.This research employed first-principles methodologies to... Magnesium and its compounds are recognized as favorable materials for structural uses,primarily due to their lightweight nature and remarkable specific strength.This research employed first-principles methodologies to investigate how pressure affects the crystal structure along with the elastic and thermodynamic characteristics of MgXY_(2)(X=Zn,Cd,and Y=Ag,Au,Cu)compounds.All analyses were implemented via the Perdew-Burke-Ernzerhof variant of the Generalized Gradient Approximation alongside a plane-wave ultrasoft pseudopotential approach.The findings on the elastic constants indicated that these MgXY_(2)compounds have maintained their stability at pressures up to 500 kBar.These constants informed detailed assessments of properties like elastic modulus,Poisson’s ratio,Vickers hardness,and material anisotropy.The Quantum Espresso software was utilized to calculate melting points,Debye temperature,and minimum thermal conductivity values.A temperature range spanning from 0 to 800 K allowed for an evaluation of vibrational energy,free energy,entropy,and specific heat capacity metrics.The anticipated physical attributes suggest significant potential for these magnesium compounds in biomedical fields. 展开更多
关键词 HEUSLER Elastic properties Mechanical properties Thermodynamic properties Quantum espresso
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Nonvolatile Manipulating Magnetic and Topological Properties in Sliding h-BN Capped MnBi_(2)Te_(4)
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作者 Xuqi Li Haidan Sang +3 位作者 Yu Zhang Hong Xu Shifei Qi Zhenhua Qiao 《Chinese Physics Letters》 2025年第7期310-319,共10页
Interlayer antiferromagnetic coupling,small magnetic anisotropy,and low air stability of the intrinsic magnetic topological insulator MnBi_(2)Te_(4)have been critical bottlenecks to the future application of the quant... Interlayer antiferromagnetic coupling,small magnetic anisotropy,and low air stability of the intrinsic magnetic topological insulator MnBi_(2)Te_(4)have been critical bottlenecks to the future application of the quantum anomalous Hall efect(QAHE)at zero magnetic feld.In this study,we propose a scheme to utilize capped sliding van der Waals materials to efectively modulate the magnetic and topological properties of MnBi_(2)Te_(4).Our results demonstrate that the h-BN/MnBi_(2)Te_(4)/h-BN heterostructure,constructed by sliding ferroelectric h-BN bilayer and MnBi_(2)Te_(4),not only realizes a transition from interlayer antiferromagnetic to ferromagnetic coupling but also signifcantly enhances the out-of-plane magnetism and air stability of MnBi_(2)Te_(4).Moreover,the above magnetic properties can be further improved by tuning the interlayer distance between h-BN and MnBi_(2)Te_(4).Additionally,the obtained band structures and topological properties clearly support that the h-BN/MnBi_(2)Te_(4)/hBN heterostructure can harbor the QAHE with a Chern number of C=1.This work provides a new and nonvolatile modulation approach to achieve high-temperature and high-precision QAHE at zero magnetic feld. 展开更多
关键词 NONVOLATILE quantum anomalous hall efect qahe low air stability intrinsic magnetic topological insulator magnetic properties capped sliding van der waals materials topological properties modulate magnetic topological properties
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Physical,Mechanical and Chemical Properties as a Decision-Support Tool to Promote Alternative Woods:Case of Dabema(Piptadeniastrum africanum)in Cameroon
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作者 John Nwoanjia Jean Jalin Eyinga Biwôlé +4 位作者 Joseph Zobo Mfomo Evariste Fedoung Fongnzossie Antonio Pizzi SaloméNdjakomo Essiane Achille Bernard Biwole 《Journal of Renewable Materials》 2025年第5期901-914,共14页
This review aims to identify the assets and limitations of Dabema(Piptadeniastrum africanum)as a sustainable alternative to traditional timber species for furniture and construction applications.Dabema is characterize... This review aims to identify the assets and limitations of Dabema(Piptadeniastrum africanum)as a sustainable alternative to traditional timber species for furniture and construction applications.Dabema is characterized by its high density and dimensional stability,meeting ASTM(American Society for Testing and Materials)standards for mechanical strength,which is essential for promoting its use.However,its limited availability in trade and ingrained habits of use are obstacles to its widespread commercialization.In addition,thermal and oleothermal treatments have shown great potential for improving the characteristics of this wood,although they require ongoing optimization and rigorous environmental assessment.Consequently,increased awareness of the benefits of Dabema is decisive to encourage its sustainable adoption in modern economies.This could help to diversify forest resources and encourage more sustainable building practices,taking advantage of Dabema’s unique properties while mitigating environmental sustainability concerns. 展开更多
关键词 Dabema(Piptadeniastrum africanum) alternative woods physical properties mechanical properties chemical properties
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Evaluation of physicochemical and functional properties of protein isolates from 5 edible mushroom species
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作者 Zheng Qian Mengdie Yang +4 位作者 Xiao Chen Qiping Zhan Lei Zhong Qiuhui Hu Liyan Zhao 《Food Science and Human Wellness》 2025年第2期671-682,共12页
Edible mushroom proteins are the promising ones with the advantages of complete essential amino acid profile and multiple functional activities.To reinforce their applications in functional food development,this study... Edible mushroom proteins are the promising ones with the advantages of complete essential amino acid profile and multiple functional activities.To reinforce their applications in functional food development,this study comprehensively evaluated the physicochemical and functional properties of protein isolates from 5 mushroom species,i.e.,Pleurotus eryngii(PEP),Pleurotus ostreatus(POP),Lentinula edodes(LEP),Flammulina velutipes(FVP)and Hypsizygus marmoreus(HMP).Results showed that PEP,LEP,FVP,POP and HMP exhibited better protein solubility(PS),water holding capacity(WHC),emulsification activity index(EAI),and foaming capacity(FC)than those of soybean protein and pea protein isolates(PPI).PEP(51.95%)and POP(49.15%)had a higher amount ofβ-sheet structure.Principal component analysis and correlation analysis showed that the seven proteins could be divided into 3 clusters,and WHC,EAI and FC were significantly positively correlated with PS andβ-sheet.The least gelation concentration of PEP(16%)and FVP(16%)at p H 6.0 and 7.0 was similar to PPI,and PEP showed better hardness,springiness and rheological properties than other proteins gels.Overall,our study showed that 5 edible mushroom proteins possessed excellent functionalities(except for gelling capacity),which provided novel insights on unexploited sources of mushroom proteins used as protein-based foods in the food industry. 展开更多
关键词 Edible mushroom proteins Physicochemical properties Functional properties Gelling properties
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Mechanical Properties Analysis of Flexible Memristors for Neuromorphic Computing
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作者 Zhenqian Zhu Jiheng Shui +1 位作者 Tianyu Wang Jialin Meng 《Nano-Micro Letters》 2026年第1期53-79,共27页
The advancement of flexible memristors has significantly promoted the development of wearable electronic for emerging neuromorphic computing applications.Inspired by in-memory computing architecture of human brain,fle... The advancement of flexible memristors has significantly promoted the development of wearable electronic for emerging neuromorphic computing applications.Inspired by in-memory computing architecture of human brain,flexible memristors exhibit great application potential in emulating artificial synapses for highefficiency and low power consumption neuromorphic computing.This paper provides comprehensive overview of flexible memristors from perspectives of development history,material system,device structure,mechanical deformation method,device performance analysis,stress simulation during deformation,and neuromorphic computing applications.The recent advances in flexible electronics are summarized,including single device,device array and integration.The challenges and future perspectives of flexible memristor for neuromorphic computing are discussed deeply,paving the way for constructing wearable smart electronics and applications in large-scale neuromorphic computing and high-order intelligent robotics. 展开更多
关键词 Flexible memristor Neuromorphic computing Mechanical property Wearable electronics
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Characterization and correlation of engineering properties with microstructure in peanuts:A microscopic to macroscopic analysis 被引量:1
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作者 Fei Xiang Zhenyuan Li +9 位作者 Yichen Zheng Caixia Ding Benu Adhikari Xiaojie Ma Xuebing Xu Jinjin Zhu Bello Zaki Abubakar Aimin Shi Hui Hu Qiang Wang 《Journal of Integrative Agriculture》 2025年第1期339-352,共14页
Peanut varieties are diverse globally,with their characters and nutrition determining the product quality.However,the comparative analysis and statistical analysis of key quality indicators for peanut kernels across t... Peanut varieties are diverse globally,with their characters and nutrition determining the product quality.However,the comparative analysis and statistical analysis of key quality indicators for peanut kernels across the world remains relatively limited,impeding the comprehensive evaluation of peanut quality and hindering the industry development on a global scale.This study aimed to compare and analyze the apparent morphology,microstructure,single-cell structure,engineering and mechanical properties,as well as major nutrient contents of peanut kernels from 10 different cultivars representing major peanut-producing countries.The surface and cross-section microstructure of the peanut kernels exhibited a dense“blocky”appearance with a distinct cellular structure.The lipid droplets were predominantly spherical with a regular distribution within the cells.The single-cell structure of the kernels from these 10 peanut cultivars demonstrated varying morphologies and dimensions,which exhibited correlations with their mechanical and engineering properties.Furthermore,the mass loss versus temperature profiles of the peanut kernels revealed five distinct stages,corresponding to moisture loss,volatile loss,protein denaturation,and the degradation of various biomacromolecules.Variations were also observed in the lipid,protein,and sucrose contents,texture,bulk density,true density,porosity,geometric mean diameter,and sphericity among the diferent peanut varieties.This study establishes relationships and correlations among microstructure,engineering properties,and nutritional composition of commonly grown peanut varieties in major peanut-processing countries.The findings provide valuable insights into peanut quality evaluation,empowering the peanut industry to enhance their processing and product development efforts. 展开更多
关键词 peanut kernels apparent morphology MICROSTRUCTURE engineering properties mechanical properties
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Effect of Ti Additions on Mechanical and Thermodynamic Properties of W-Ti Alloys: A First-principles Study
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作者 ZHANG Jian NIE Wei +5 位作者 HUANG Jin ZHU Ke LIU Ruxia ZHANG Ruizhi LUO Guoqiang SHEN Qiang 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2025年第1期246-257,共12页
The mechanical and thermodynamic properties of W-Ti alloys(including W_(15)Ti_(1),W_(14)Ti_(2),W_(12)Ti_(4) and W_(8)Ti_(8) alloys)were investigated by the first-principles approach based on density functional theory.... The mechanical and thermodynamic properties of W-Ti alloys(including W_(15)Ti_(1),W_(14)Ti_(2),W_(12)Ti_(4) and W_(8)Ti_(8) alloys)were investigated by the first-principles approach based on density functional theory.The results indicate that W-Ti alloys except W_(8)Ti_(8) are thermodynamically stable.The modulus and hardness of W-Ti alloys are smaller than those of pure tungsten and gradually decrease with increasing Ti concentration.However,their B/G ratios and Poisson's ratios exceed those of pure tungsten,suggesting that the introduction of Ti decreases the mechanical strength while enhancing the ductility of W-Ti alloys.The thermal expansion coefficients for W-Ti alloys all surpass those of pure tungsten,indicating that the introduction of titanium exacerbates the thermal expansion behavior of W-Ti alloys.Nevertheless,elevated pressure has the capacity to suppress the thermal expansion tendencies in titanium-doped tungsten alloys.This study offers theoretical insights for the design of nuclear materials by exploring the mechanical and thermodynamic properties of W-Ti alloys. 展开更多
关键词 FIRST-PRINCIPLES mechanical properties thermodynamic properties tungsten-titanium alloys
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Effect of sodium laurate on the properties of sodium lauroyl glutamate
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作者 Guofang Gao Yadan Feng +3 位作者 Ziwei Diao Yongqiang Sun Zhiyong Hu Hailin Zhu 《日用化学工业(中英文)》 北大核心 2025年第4期446-452,共7页
In this paper,the effect of sodium laurate(SL)on the properties of sodium lauroyl glutamate(SLG),such as surface activity,foam,wetting,emulsification,and resistance to hard water,has been systematically investigated.T... In this paper,the effect of sodium laurate(SL)on the properties of sodium lauroyl glutamate(SLG),such as surface activity,foam,wetting,emulsification,and resistance to hard water,has been systematically investigated.The results showed that the critical micelle concentration(cmc)of SLG was 0.30 mmol/L,and the surface tension at the cmc(γcmc)was 34.95 mN/m.With the increase of SL content,the efficiency of SLG solution in reducing the surface tension was decreased.When the SL content was increased,there was no significant change in the foaming ability and foam stability of SLG solutions.The increase of SL content improved both the emulsification and wettability of SLG,but reduced its water resistance. 展开更多
关键词 sodium lauroyl glutamate sodium laurate surface activity emulsification properties wetting properties
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Innovative dispersion techniques of graphene nanoplatelets(GNPs)through mechanical stirring and ultrasonication:Impact on morphological,mechanical,and thermal properties of epoxy nanocomposites
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作者 Vasi Uddin Siddiqui S.M.Sapuan Mohd Roshdi Hassan 《Defence Technology(防务技术)》 2025年第1期13-25,共13页
Graphene nanoplatelets(GNPs)have attracted tremendous interest due to their unique properties and bonding capabilities.This study focuses on the effect of GNP dispersion on the mechanical,thermal,and morphological beh... Graphene nanoplatelets(GNPs)have attracted tremendous interest due to their unique properties and bonding capabilities.This study focuses on the effect of GNP dispersion on the mechanical,thermal,and morphological behavior of GNP/epoxy nanocomposites.This study aims to understand how the dispersion of GNPs affects the properties of epoxy nanocomposite and to identify the best dispersion approach for improving mechanical performance.A solvent mixing technique that includes mechanical stirring and ultrasonication was used for producing the nanocomposites.Fourier transform infrared spectroscopy was used to investigate the interaction between GNPs and the epoxy matrix.The measurements of density and moisture content were used to confirm that GNPs were successfully incorporated into the nanocomposite.The findings showed that GNPs are successfully dispersed in the epoxy matrix by combining mechanical stirring and ultrasonication in a single step,producing well-dispersed nanocomposites with improved mechanical properties.Particularly,the nanocomposites at a low GNP loading of 0.1 wt%,demonstrate superior mechanical strength,as shown by increased tensile properties,including improved Young's modulus(1.86 GPa),strength(57.31 MPa),and elongation at break(4.98).The nanocomposite with 0.25 wt%GNP loading performs better,according to the viscoelastic analysis and flexural properties(113.18 MPa).Except for the nanocomposite with a 0.5 wt%GNP loading,which has a higher thermal breakdown temperature,the thermal characteristics do not significantly alter.The effective dispersion of GNPs in the epoxy matrix and low agglomeration is confirmed by the morphological characterization.The findings help with filler selection and identifying the best dispersion approach,which improves mechanical performance.The effective integration of GNPs and their interaction with the epoxy matrix provides the doorway for additional investigation and the development of sophisticated nanocomposites.In fields like aerospace,automotive,and electronics where higher mechanical performance and functionality are required,GNPs'improved mechanical properties and successful dispersion present exciting potential. 展开更多
关键词 Graphene nanoplatelets Epoxy Nanocomposites Mechanical properties Thermal properties Mechanical stirrer Sonication
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