Results 41 to 50 of about 1,416 (136)

Ru‐Ag Dual Atom Sites for Methane Detection Enabling Intelligent Thermal Runaway Warning in Lithium‐Ion Batteries

open access: yesRare Metals, EarlyView.
ABSTRACT Early detection of thermal runaway (TR) is essential for lithium‐ion battery (LIB) safety, as unchecked TR risks catastrophic failures in energy storage systems. Gas‐based sensing offers a faster and more direct approach by detecting decomposition products at the molecular level.
Tianshui Liang   +9 more
wiley   +1 more source

强化学习:迈向知行合一的智能机制与算法

open access: yes智能科学与技术学报, 2020
简要地评论了强化学习的历史、现状与未来的发展途径,认为强化学习应从先行后知、先知后行向知行合一的平行强化学习迈进,实现在虚拟世界“吃一堑”,在物理世界“长一智”,真正成为智慧机制和智能算法的基础学习理论。
王飞跃, 曹东璞, 魏庆来
doaj  

Preparation, performance and mechanism study of high-efficient BiOI/BiOBr visible light photocatalyst(高效BiOI/BiOBr可见光催化剂的制备、性能及机理研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
利用无机原料水热合成法制备BiOI/BiOBr复合可见光催化剂,通过XRD、SEM、EDS、DRS、I-t响应曲线等手段对催化剂的物相组成和光化学性能进行了系统表征.以RhB为目标污染物,考察了催化剂的光催化活性并对最优比例催化剂的稳定性进行评价,通过ESR分析和自由基捕获实验探究了RhB的光催化降解机制.研究结果表明:无机原料水热合成法可成功制备纯度高、结晶性能良好的BiOI/BiOBr复合可见光催化剂;BiOI的复合降低了BiOBr光催化剂的电子-空穴的复合,拓宽其可见光响应范围 ...
ZHANGQun(张群)   +6 more
doaj   +1 more source

Band Edge Reorganization via Symmetry Constraints in Covalent Bonding Heterojunctions Boosts Photocatalytic Metronidazole Degradation

open access: yesRare Metals, EarlyView.
ABSTRACT The covalent bonds at heterojunction interfaces enable more efficient charge carrier separation than traditional weakly coupled heterojunctions, with enhanced photocatalytic performance for organic wastewater purification. The interfacial covalent bonds drive energy band reorganization, rendering the conventional independent band edge ...
Jing‐Yu Ren   +5 more
wiley   +1 more source

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, EarlyView.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

open access: yesRare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang   +4 more
wiley   +1 more source

Precise Tailoring of the Coordination Environment of Single‐Atom Cu(I) on Trifurcate AlL3 Supports for Click Chemistry

open access: yesRare Metals, EarlyView.
ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang   +9 more
wiley   +1 more source

初探化学合成制粉工艺对ZnO压敏电阻U1mA/mm值的影响 附视频

open access: yesDianci bileiqi, 1998
用电子探针对比观测了采用化学共沉淀法制粉和机械混合法制粉的压敏电阻的微观结构;得出化学合成制粉工艺使压敏电阻U1mA/mm升高的原因是由于粉料组分的均匀分布使得其晶界组分的浓度均匀且高于机械混合制粉阀片中的晶界组分贫化区浓度,从整体上抑制了烧结过程中的晶粒长大。
费自豪   +4 more
doaj  

Research on Total Synthesis of New Antibiotics, (-)-Platencin and (-)-Platensimycin, and Antitumor Compound, (-)-Taxol [PDF]

open access: yes, 2013
制度:新 ; 報告番号:甲3927号 ; 学位の種類:博士(理学) ; 授与年月日:2013/3/15 ; 主論文の冊数:1 ; 早大学位記番号 ...
平井 祥
core   +1 more source

Development of Coupled Electrochemical Systems for Metal Resource Recovery From Aqueous Metal‐Organic Complexes

open access: yesRare Metals, EarlyView.
ABSTRACT The past decade has witnessed a burgeoning demand of metals for global industrial development and infrastructure. Meanwhile, the depletion of mineral resources and the environmental damage caused by wastewater discharges pose significant threats to both economic and ecological sustainability. Fortunately, metal‐containing wastewaters also hold
Fei Zhang   +6 more
wiley   +1 more source

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