Results 51 to 60 of about 322,172 (167)

Synergistic Activation of the Inert (001) Facet in Janus ZnIn2S4 Through Co 3d and P 3p Orbital Hybridization for Superior Photocatalytic Hydrogen Evolution

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The Janus structure of ZnIn2S4 (ZIS) endows it with an intrinsic built‐in electric field that effectively drives photogenerated charge separation. However, this very structure also renders the predominant (001) facet (In–S termination) catalytically inert due to its low electron density and high energy barrier for the hydrogen evolution ...
Qingao Zhou   +8 more
wiley   +1 more source

面向可解释性人工智能与大数据的模糊系统发展展望

open access: yes智能科学与技术学报, 2019
模糊系统作为一种万能逼近器具有很强的可解释性,已被广泛应用在各个领域。尽管目前模糊系统的理论研究不够成熟,仍然存在诸如规则太多、优化困难、维度诅咒等问题,难以处理高维大数据。尽管深度神经网络取得了突出进展,能很好处理图像和语音等大数据,但其可解释性不好,难以用于安全相关的重要场合。因此,非常有必要研究一种基于模糊系统的可解释性强的人工智能算法。结合深度神经网络和模糊系统两者的优点,研究深度模糊系统及其算法,将有可能解决高维大数据问题。主要对模糊系统的发展历程与研究进展分别进行详细阐述 ...
陈德旺, 蔡际杰, 黄允浒
doaj  

Multiobjective Optimization‐Driven Design of Novel Zn Alloys Exhibiting Synergistic Enhancement of Strength and Ductility via NSGA‐III

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT With excellent castability and dimensional stability, Zn alloys are widely used in the automotive and electronic industries. However, the inherent trade‐off between strength and ductility remains a key bottleneck limiting their application in high‐performance fields.
Jianxing Zhou   +11 more
wiley   +1 more source

Auto-focus technology and its application based on image processing

open access: yes, 2009
Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
core  

蜂窝结构抗剪性能实验研究及其数值模拟 [PDF]

open access: yes, 2007
蜂窝结构以优异的力学性能,如比刚度大、比强度大、重量轻、良好的隔音隔热等,在建筑、工业锅炉、航空等结构中得到广泛的应用。抗剪性能是蜂窝结构主要力学性能之一,本文利用剪切实验和四点弯曲实验对PVC材料的圆形错排蜂窝结构的等效剪切模量及抗剪强度进行了实验研究,并利用有限元软件ANSYS对两种实验进行了三维有限元数值模拟。两种实验测得的等效剪切模量结果和数值模拟结果比较吻合。结果表明可以通过数值模拟对蜂窝结构的力学性能参数进行估算 ...
阚常珍, 战颂, 徐永君, 李敏
core  

Bioinspired Artificial Electronic Neurons Using Ultrathin Thermal Conductivity Graded Ge2Sb2Te5 Phase‐Change Materials

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Phase‐change memory (PCM), characterized by its reversible transition between crystalline and amorphous phases, has emerged as a promising candidate for neuromorphic memory computing applications. However, conventional PCM devices lack an insufficient RESET/SET voltage ratio, which often leads to incorrect recording of the RESET state and ...
Zihan Liu   +8 more
wiley   +1 more source

The continuous solution of SAT problem based on geometric programming

open access: yes, 2013
布尔可满足问题是计算机科学中诸多领域的重要问题,它的快速求解具有十分重要的意义.将具有实际物理背景的Solar算法中的拟物算法与几何规划相结合,提出并实现了一种布尔可满足性问题的连续求解方法.经实验验证,这种算法对布尔可满足性问题的求解具有一定的实用价值.广西自然科学基金资助项目(2011GXNSFA018154,2012GXNSFGA060003,2013GXNSFAA019342);广西区主席科技资金(10169-1);广西教育厅科研资助项目(201012MS274);广西“八桂 ...
吴尽昭   +4 more
core  

Cavity‐Confined Indium Single‐Atom Catalysts Enable Localized Electron Enrichment for Highly Efficient and Selective Photocatalytic CO2 Reduction

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo   +6 more
wiley   +1 more source

基于深度学习的准部分子模型研究核物质状态方程

open access: yesHe jishu
在极端相对论重离子碰撞条件下,精确构建有限重子化学势μB区域的量子色动力学(Quantum Chromodynamics,QCD)物质状态方程(Equation of State,EoS)是当前高能核物理研究的核心难题之一。本研究提出一种基于深度学习的准部分子模型,通过构建三个深度神经网络,成功实现了零μB条件下QCD状态方程的高精度重建。同时,经深入分析四阶广义磁化率χ4B在不同温度和μB下的单调性行为,大致限定了QCD临界点可能存在的区间为(T,μB)=((0.113±0.019) GeV,(0 ...
李 甫鹏, 庞 龙刚, 秦 广友
doaj   +1 more source

Edge‐Fluorinated Flower‐Like Porous Graphene Microspheres With Enlarged Interlayer Spacing for High‐Performance Potassium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen   +7 more
wiley   +1 more source

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