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过渡金属(TM=V,Cr,Mn,Fe,Co,Ni)掺杂GeSe的高温铁磁半导体薄膜

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science China Materials 2024年第1期67卷 279-288页

作者：李德仁张析何文杰彭勇向钢 college of Physics Sichuan UniversityChengdu 610064China college of {1. science and technology Lanzhou UniversityLanzhou 730000China

具有高温铁磁性的IV族金属硫族化物磁性半导体薄膜是半导体自旋电子器件所需要的重要材料.本文采用固体源化学气相沉积法制备了一系列过渡金属元素(TM=V,Cr,Mn,Fe,Co和Ni)掺杂GeSe的多晶半导体薄膜样品.磁性测量表明,Mn,Fe和Co掺杂的GeS... 详细信息

具有高温铁磁性的IV族金属硫族化物磁性半导体薄膜是半导体自旋电子器件所需要的重要材料.本文采用固体源化学气相沉积法制备了一系列过渡金属元素(TM=V,Cr,Mn,Fe,Co和Ni)掺杂GeSe的多晶半导体薄膜样品.磁性测量表明,Mn,Fe和Co掺杂的GeSe薄膜表现出较强的铁磁性,居里温度(TC)分别高达277,255和243 K,而V,Cr和Ni掺杂GeSe的多晶薄膜表现出较弱的铁磁性.磁电输运测量表明,Mn,Fe和Co掺杂GeSe的多晶薄膜具有相对较高的空穴浓度,在300 K下高达~1.20cm^(-3).基于实验和计算结果的进一步分析表明,Mn,Fe和Co掺杂GeSe的多晶薄膜中的强铁磁性归因于载流子增强的Ruderman-KittelKasuya-Yosida相互作用.我们的研究结果展示了过渡金属掺杂GeSe的磁性半导体薄膜的丰富多样性,并为相关基础研究和器件应用提供了一个新平台.

关键词：半导体薄膜多晶薄膜化学气相沉积法过渡金属元素过渡金属掺杂铁磁半导体空穴浓度磁性测量

Effect of changing the proportion of C1.:0 and cis-9 C1.:1.in fat supplements on rumen fermentation,glucose and lipid metabolism,antioxidation capacity,and visceral fatty acid profile in finishing Angus bulls

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Animal Nutrition 2024年第3期18卷 39-48页

作者： Haixin Bai Lubo Wang Modinat Tolani Lambo Yang Li Yonggen Zhang college of Animal {1. and technology Northeast Agricultural UniversityHarbin 150030China

This study evaluated the effects of different proportions of palmitic(C1.:0)and oleic(cis-9 C1.:1.acids in fat supplements on rumen fermentation,glucose(GLU)and lipid metabolism,antioxidant function,and visceral fat fatty acid(FA)composition in Angus *** design of the experiment was a randomized block design with 3 treatments of 1. animals each.A total of 30 finishing Angus bulls(21.0.5 months)with an initial body weight of 626±69 kg were blocked by weight into 1. blocks,with 3 bulls per *** bulls in each block were randomly assigned to one of three experimental diets:(1.control diet without additional fat(CON),(2)CON+2.5%palmitic calcium salt(PA;90%C1.:0),(3)CON+2.5%mixed FA calcium salts(MA;60%C1.:0+30%cis-9 C1.:1..Both fat supplements increased C1.:0 and cis-9 C1.:1.in visceral fat(P1..PA increased the insulin concentration(P1.and aspartate aminotransferase activity(AST;P=0.030)in bull's blood while reducing the GLU concentration(P=0.009).PA increased the content of triglycerides(TG;P=0.01.)in the liver,the content of the C1.:0 in visceral fat(P=0.004),and weight gain(P=0.032),and up-regulated the expression of liver diacylglycerol acyltransferase 2(DGAT2;P1.and stearoyl-CoA desaturase 1.SCD1.P1.),reduced the concentration of acetate and total volatile FA(VFA)in rumen fluid(P1.:0 fat supplementation increased weight gain in Angus bulls and triggered the risk of fatty liver,insulin resistance,and reduced antioxidant *** adverse effects were alleviated by partially replacing C1.:0 with cis-9 C1.:1.

关键词： Palmitic acid Oleic acid Lipid metabolism Lipotoxicity Finishing bull

A breakthrough of printable mesoscopic perovskite solar cells

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science China Materials 2024年

作者： Zhiyi Yao Zhijun Ning School of physical {1. and technology ShanghaiTech University

High-performance solar cells based on low-cost wet coating methods are the much-anticipated technology for the next generation of photovoltaics. Perovskite solar cells(PSCs) provide a fascinating choice because their ...

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Single-atomic activation on ZnIn_(2)S_(4)basal planes boosts photocatalytic hydrogen evolution

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Nano Research 2024年第7期17卷 5949-5955页

作者： Jianpeng Cui Ying Wang Luxue Lin Xiaotian Yang Xuyu Luo Shiying Guo Xiaoyong Xu college of Physics {1. and technology and Center for Interdisciplinary ResearchYangzhou UniversityYangzhou 225002China

The use of single-atom cocatalysts plays a crucial role in enhancing artificial photocatalysis,where the precise construction of stable and efficient single-atom configuration is essential but remains ***,we report a simple one-step hydrothermal method for preparing single-atomic Mo modified ZnIn_(2)S_(4)(Mo-ZIS)nanosheets as a highly active photocatalytic hydrogen evolution(PHE)*** Mo substituting for portion of In atoms in ZIS nanosheets induces the spatial charge redistribution,which not only promotes the separation of photogenerated charge carriers but also optimizes the Gibbs free energy of adsorbing H*on S atoms at basal *** a result,Mo-ZIS exhibits an impressive PHE rate as high as 6.71.mmol·g^(−1.·h^(−1.,over 1. times that of the pristine ZIS,with an apparent quantum efficiency(AQE)up to 38.8%at 420 *** study gains insights into the coordination configuration and electronic modulation resulting from single-atomic decoration,providing mechanistic cognitions for the development of advanced photocatalysts via non-precious metal atomic modification.

关键词： photocatalytic hydrogen evolution ZnIn_(2)S_(4) single-atom activation Gibbs free energy

Absorption characteristics,model,and molecular mechanism of hydrogen sulfide in morpholine acetate aqueous solution

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Chinese Journal of Chemical Engineering 2024年第2期66卷 125-135页

作者： Hongwei Jin Yun Teng Kangkang Li Zhou Feng Zhonghao Li Shiqi Qu Hongzhi Xia Huanong Cheng Yugang Li Xinshun Tan Shiqing Zheng college of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China

The solubility of H_(2)S was measured in solutions of N-butyl-N-methylmorpholine acetate([Bmmorp][Ac])containing 20%-40%(mass)water at experimental temperatures ranged from 298.1. to 328.1. K and pressures up to 320 k *** total solubility of H_(2)S increased with higher temperatures,lower pressures,and reduced water *** reaction equilibrium thermodynamic model was used to correlate the solubility *** results indicate that the chemical reaction equilibrium constant decrease with increasing water content and temperature,whereas Henry constant increase with increasing water content and *** with other ionic liquids,H_(2)S exhibits a higher physical absorption enthalpy and a lower chemical absorption enthalpy in[Bmmorp][Ac]aqueous *** suggests that[Bmmorp][Ac]has a strong physical affinity for H_(2)S and low energy requirement for *** chemical methods were used to investigate the molecular mechanism of H_(2)S absorption in ionic *** interaction energy analysis revealed that the binding of H_(2)S with the ionic liquid in a1.2 ratio is more *** analyses by the methods of the interaction region indicator and the atoms in molecules were conducted to the interactions between H_(2)S and the ionic liquid.

关键词： Ionic liquid Hydrogen sulfide Model Solubility Molecular mechanism

BLUPmrMLM:A Fast mrMLM Algorithm in Genome-wide Association Studies

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Genomics, Proteomics & Bioinformatics 2024年第3期22卷 55-67页

作者： Hong-Fu Li Jing-Tian Wang Qiong Zhao Yuan-Ming Zhang college of Plant {1. and technology Huazhong Agricultural UniversityWuhan 430070China

Multilocus genome-wide association study has become the state-of-the-art tool for dissecting the genetic architecture of complex and multiomic ***,most existing multilocus methods require relatively long computational time when analyzing large *** address this issue,in this study,we proposed a fast mrMLM method,namely,best linear unbiased prediction multilocus random-SNP-effect mixed linear model(BLUPmrMLM).First,genome-wide single-marker scanning in mrMLM was replaced by vectorized Wald tests based on the best linear unbiased prediction(BLUP)values of marker effects and their variances in ***,adaptive best subset selection(ABESS)was used to identify potentially associated markers on each chromosome to reduce computational time when estimating marker effects via empirical ***,shared memory and parallel computing schemes were used to reduce the computational *** simulation studies,BLUPmrMLM outperformed GEMMA,EMMAX,mrMLM,and FarmCPU as well as the control method(BLUPmrMLM with ABESS removed),in terms of computational time,power,accuracy for estimating quantitative trait nucleotide positions and effects,false positive rate,false discovery rate,false negative rate,and F1.*** the reanalysis of two large rice datasets,BLUPmrMLM significantly reduced the computational time and identified more previously reported genes,compared with the aforementioned *** study provides an excellent multilocus model method for the analysis of large-scale and multiomic *** software mrMLM v5.1.is available at BioCode(https://***/biocode/tool/BT007388)or GitHub(https://***/YuanmingZhang65/mrMLM).

关键词： Genome-wide association study BLUP Multilocus model mrMLM Large-scale dataset

Strain tunable excitonic optical properties in monolayer Ga2O3

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Chinese Physics B 2024年第10期 418-423页

作者：崔浩磊权真王舒东 School of physical {1. and technology Inner Mongolia University

Two-dimensional（2D） Ga2O3has been confirmed to be a stable structure with five atomic layer thickness *** this work,we study the quasi-particle electronic band structures and then access the excitonic optical properties through solving the Bethe-Salpeter equation（BSE）.The results reveal that the exciton dominates the optical absorption in the visible light region with the binding energy as large as ～1.0 eV,which is highly stable at room ***,both the dominant absorption P1.nd P2peaks are optically bright without dark exciton between them,and thus is favorable for luminescence *** calculated radiative lifetime of the lowest-energy exciton is 2.0×1.-1.s at 0 ***,the radiative lifetime under+4% tensile strain is one order of magnitude shorter than that of the strainfree case,while it is less insensitive under the compressive *** findings set the stage for future theoretical and experimental investigation on monolayer Ga2O3.

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Tripartite motif-containing protein 1.(TRIM1.):a novel weapon against Alzheimer’s disease

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Signal Transduction and Targeted Therapy 2024年第2期9卷 339-340页

作者： Yichu Fu Bi Zhang Jianfeng Liu college of Life {1. and technology Key Laboratory of Molecular Biophysics of MOEHuazhong University of Science and TechnologyWuhanHubei 430074China

In a recent study published in science,Zhang et *** that tripartite motif-containing(TRIM)protein 1.(TRIM1.)exhibited strong inhibition on tau aggregation,which is a pathological characteristic of tauopathies including Alzheimer’s disease(AD).1.This makes TRIM1. a promising novel target for the treatment of AD and other tauopathies.

关键词： Alzheimer tau TRIM

Investigation on the roles of equilibrium toroidal rotation during edge-localized mode mitigated by resonant magnetic perturbations

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Plasma science and {1. 2024年第1期26卷 16-33页

作者：董良康陈少永牟茂淋罗杨秦晨晨唐昌建 college of Physics Sichuan UniversityChengdu 610064People’s Republic of China Key Laboratory of High Energy Density Physics and technology of Ministry of Education Sichuan UniversityChengdu 610064People’s Republic of China Institute of Fusion science School of Physical Science and TechnologySouthwest Jiaotong UniversityChengdu 610031People’s Republic of China

The effects of equilibrium toroidal rotation during edge-localized mode(ELM)mitigated by resonant magnetic perturbation(RMP)are studied with the experimental equilibria of the EAST tokamak based on the four-field model in the BOUT++*** the two main parameters to determine the toroidal rotation profiles,the rotation shear and magnitudes were separately scanned to investigate their roles in the impact of RMPs on peeling-ballooning(P-B)*** one hand,the results show that strong toroidal rotation shear is favorable for the enhancement of the self-generated E×B shearing ratewith RMPs,leading to significant ELM mitigation with RMP in the stronger toroidal rotation shear *** the other hand,toroidal rotation magnitudes may affect ELM mitigation by changing the penetration of the RMPs,more precisely the resonant *** can lead to a reduction in the pedestal energy loss by enhancing the multimode coupling in the turbulence transport *** shielding effects on RMPs increase with the toroidal rotation magnitude,leading to the enhancement of the multimode coupling with RMPs to be significantly ***,the reduction in pedestal energy loss by RMPs decreased with the rotation *** brief,the results show that toroidal rotation plays a dual role in ELM mitigation with RMP by changing the shielding effects of plasma by rotation magnitude and affectingby rotation *** the high toroidal rotation region,toroidal rotation shear is usually strong and hence plays a dominant role in the influence of RMP on P-B modes,whereas in the low rotation region,toroidal rotation shear is weak and has negligible impact on P-B modes,and the rotation magnitude plays a dominant role in the influence of RMPs on the P-B modes by changing the field ***,the dual role of toroidal rotation leads to stronger ELM mitigation with RMP,which may be achieved both in the low toroidal rotation region and the relatively high rotation regi

关键词： edge-localized mode peeling–ballooning modes resonant magnetic perturbation toroidal rotation plasma response tokamak