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Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia Zhao Taixi feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

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中小学教师专业发展影响因素之探析

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教师教育论坛 2014年第2期27卷 32-36页

作者：冯海洋宋萑教育部普通高校人文社会科学重点研究基地北京师范大学教师教育研究中心北京100875

探究教师专业发展的影响因素是促进教师专业发展的前提和依据。本文从个人主体性和环境条件性两个方面,具体分析和探讨了影响中小学教师专业发展的相关因素,以期为促进教师专业发展提供理论支持。

关键词：中小学教师专业发展个人主体性因素环境条件性因素

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A New Sterol from the Brown Algae Sargassum Carpophyllum and Ishige Okamurai

A New Sterol from the Brown Algae Sargassum Carpophyllum and...

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中国生物化学与分子生物学会第八届会员代表大会暨全国学术会议

作者： hai-feng Tang yang-hua yi xin shengyao qiang zhi xu kun ma and yong pei jiang(researchcenter for marine drugs school of pharmacy second military medical university shanghai 200433)

Bioassay-guided fractionation of the extracts of Sargassum carpophyllum and Ishige okamurai,has led to theisolation and identification of new sterols 1a and 1b as an inseparable mixture. A known hydroperoxysterol 2 was alsoisolated from the former extract. These compounds induced morphological abnormality of Pyricularia oryzae myce-

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Recent Advances in Fibrous Materials for Hydroelectricity Generation

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Nano-Micro Letters 2025年第2期17卷 109-133页

作者： Can Ge Duo Xu Xiao feng Xing yang Zheheng Song Yuhang Song Jingyu Chen Yingcun Liu Chong Gao Yong Du Zhe Sun Weilin Xu Jian Fang College of Textile and Clothing Engineering Soochow UniversitySuzhou 215123People’s Republic of China National Engineering Laboratory for Modern Silk Soochow UniversitySuzhou 215123People’s Republic of China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Department of Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of Materials Imperial College LondonSouth Kensington CampusLondon SW72AZUK College of Textile Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China School of Materials Science and Engineering Shanghai Institute of Technology100 Haiquan RoadShanghai 201418People’s Republic of China

Depleting fossil energy sources and conventional polluting power generation pose a threat to sustainable *** generation from ubiquitous and spontaneous phase transitions between liquid and gaseous water has been considered a promising strategy for mitigating the energy *** materials with unique flexibility,processability,multifunctionality,and practicability have been widely applied for fibrous materials-based hydroelectricity generation(FHG).In this review,the power generation mechanisms,design principles,and electricity enhancement factors of FHG are first ***,the fabrication strategies and characteristics of varied constructions including 1D fiber,1D yarn,2D fabric,2D membrane,3D fibrous framework,and 3D fibrous gel are ***,the advanced functions of FHG during water harvesting,proton dissociation,ion separation,and charge accumulation processes are analyzed in ***,the potential applications including power supply,energy storage,electrical sensor,and information expression are also ***,some existing challenges are considered and prospects for future development are sincerely proposed.

关键词： Hydroelectricity Fibrous material Streaming potential Ion diffusion

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Anomalous quality factor evolution of induced transparency in a virtualized coupled-oscillator system

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 148-155页

作者： Yunhan yang Han Jia Tuo Liu Yuzhen yang Jun yang Key Laboratory of Noise and Vibration Research Institute of Acoustics Chinese Academy of Sciences University of Chinese Academy of Sciences State Key Laboratory of Acoustics Institute of Acoustics Chinese Academy of Sciences

The phenomenon of induced transparency, characterized by a high quality(Q) factor, holds significant importance in the fields of high-precision sensing, energy storage and wave manipulation. Conventional transparency systems are often constrained by the limited experimentally accessible parameter space and the lack of independent control over intrinsic parameters, thereby hindering advanced research on high-Q effects. Here we propose a virtualized coupled-oscillator system that enables reconfigurable induced transparency in the reflection spectrum. By virtually incorporating a pair of coupled oscillators into an individual acoustic meta-atom, we achieve the manipulation of induced transparency in a decoupled, wide-ranging, and elaborate manner. Exploiting the diverse evolutions across the intrinsic parameter space, we show experimentally a counter-intuitive increase in the Q-factor of the transparency window, which is attributed to the enhanced dissipation of the bright ***, a constant group delay at the center frequency is observed accompanying this evolution. Our work demonstrates an intriguing platform as well as a novel strategy to engineer high-Q induced transparency phenomenon, and paves the way towards applications in programmable acoustic sensors, filters and slow-wave devices.

关键词： induced transparency acoustic meta-atom high quality-factor scattering programmable intrinsic parameter

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Stage Achievements Made in Program of Key Technologies of Detection and Analysis for Harmful Mycotoxin Residues in CHM

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Chinese Herbal Medicines 2010年第3期 242-242页

作者： XU Xu-dong, WU hai-feng, and DAN yang

With the increasing popularity of traditional Chinese medicine (TCM) worldwide, the quality and safety issues of Chinese herbal medicines (CHM) have been attached high importance including mycotoxic pollutants. Suppor... 详细信息

关键词： Stage Achievements Made in Program of Key Technologies of Detection and Analysis for Harmful Mycotoxin Residues in CHM

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肠造口术在局部进展期直肠癌综合治疗中的作用

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中华外科杂志 2007年第7期45卷 455-458页

作者：刘勇李德川冯海洋朱远刘鲁迎浙江省肿瘤医院大肠癌科杭州310022 浙江省肿瘤医院放疗科杭州310022

目的分析和探讨肠造口术在局部进展期直肠癌患者综合治疗中的作用。方法分析51例行术前放化疗和手术治疗的直肠癌患者的临床资料,对直肠癌综合治疗中肠造口术的选择和肠造口并发症进行分析。结果术前放化疗后64.9%的患者 T 期下降,病理... 详细信息

目的分析和探讨肠造口术在局部进展期直肠癌患者综合治疗中的作用。方法分析51例行术前放化疗和手术治疗的直肠癌患者的临床资料,对直肠癌综合治疗中肠造口术的选择和肠造口并发症进行分析。结果术前放化疗后64.9%的患者 T 期下降,病理完全缓解率21.6%,37例直肠癌患者接受了肠造口手术,其中腹膜外乙状结肠造口术29例,回肠袢式造口术8例,3例患者因术前放化疗过程中出现肠梗阻症状而先期接受了远、近端结肠分别造口术以暂时转流粪便,全组术后出现造口旁疝和造口狭窄各1例,造口旁感染2例,无造口相关手术死亡。结论在直肠癌综合治疗过程中,结肠造口术可减低梗阻肠段压力,解除肠道梗阻,确保综合治疗的顺利完成;而回肠造口术可促进综合治疗后保肛手术中远端结直肠吻合口的愈合,减少吻合口漏带来的风险。

关键词：直肠肿瘤肠造口术新辅助疗法外科手术

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Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang feng Gao Yu-Gui Peng Peng Wu Zong-Lin Li Xue-feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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三孔免钛夹腹腔镜胆囊切除术与开腹胆囊切除术的临床效果比较

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临床医学研究与实践 2017年第26期2卷 64-65页

作者：冯海军高志勇冯海洋陕西省延川县人民医院陕西延安717200

目的比较三孔免钛夹腹腔镜胆囊切除术与开腹胆囊切除术的临床治疗效果。方法将104例需行胆囊切除手术的患者根据治疗方法分为对照组和观察组,各52例。对照组采用开腹胆囊切除术治疗,观察组采用三孔免钛夹腹腔镜胆囊切除术治疗。比较两... 详细信息

目的比较三孔免钛夹腹腔镜胆囊切除术与开腹胆囊切除术的临床治疗效果。方法将104例需行胆囊切除手术的患者根据治疗方法分为对照组和观察组,各52例。对照组采用开腹胆囊切除术治疗,观察组采用三孔免钛夹腹腔镜胆囊切除术治疗。比较两组患者的临床疗效。结果观察组患者手术时间、术中出血量、住院时间、胃肠道功能恢复时间、下床活动时间均优于对照组患者(P<0.05)。两组患者治疗后1、7 d CRP水平均高于治疗前(P<0.05);治疗后7 d两组CRP水平低于治疗后1 d,且观察组低于对照组(P<0.05)。观察组不良反应发生率低于对照组(P<0.05)。结论三孔免钛夹腹腔镜胆囊切除治疗胆囊疾病的临床效果优,不良反应少,值得临床推广应用。

关键词：免钛夹三孔腹腔镜胆囊切除手术

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Localizing base stations with measured data:a concatenated image-based deep learning approach

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Science China(Information Sciences) 2025年

作者： yang CHEN Ziyuan LIU feng JIANG Hong SHEN Wei XU Mengyu LI Ritao CHENG National Mobile Communications Research Laboratory Southeast University China Mobile Group Design Institute Co. Ltd.

Localization has become an indispensable function of modern cellular communication systems[1]. In a cloud radio access network （C-RAN）, the remote radio head （RRH） is the actual signal transmitter, whose location ...

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