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学者姓名：李昂
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摘要 ：
本发明提供一种贵金属衬底的异相化单位点制备方法。在水和或溶剂中，加入具有官能团修饰的均相钨、钼金属配合物的单位点，即金属单原子或金属单一团簇，配体是可以与金属配位的含有氧/硫/氮的化合物分子，即均匀分散在溶剂中的金属氧/硫/氮化物，制成均相络合物溶液。在该溶液中，加入带有表面缺陷的衬底材料后，利用静置冷冻/加热或pH或加电压方式，将均相位点负载在衬底材料表面的缺陷或缝隙处，形成异相化制备。
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| GB/T 7714 | 王聪 , 李昂 , 冯奕博 et al. 一种贵金属衬底的异相化单位点制备方法 : CN202211447913.9[P]. | 2022-11-18 . |
| MLA | 王聪 et al. "一种贵金属衬底的异相化单位点制备方法" : CN202211447913.9. | 2022-11-18 . |
| APA | 王聪 , 李昂 , 冯奕博 , 高钰航 , 韩晓东 . 一种贵金属衬底的异相化单位点制备方法 : CN202211447913.9. | 2022-11-18 . |
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摘要 ：
一种城市固废焚烧过程主蒸汽流量实时预测方法，步骤如下：一、对城市固废焚烧过程的历史数据进行预处理，使用基于滑动窗口与相关向量机RVM结合的方法识别并删除其中的异常值，并使用时间连续的数据作为案例库；二、使用基于欧氏距离与协方差作为相似度指标的即时学习方法JITL检索数据样本，得到与待预测时刻相似度最高的n*K个案例；三、使用基于机理分析改进的支持向量机ISVM对检索出的n*K个案例建立模型，并得出目标时刻的主蒸汽流量值，最后将结果与目标时刻工况参数作为一个案例存储到案例库中；四、重复步骤二～三，直至焚烧过程结束，以实现城市固废焚烧过程主蒸汽流量实时预测。本发明使得热能转化状况得到准确检测，提高热能利用率。
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| GB/T 7714 | 严爱军 , 李昂 , 汤健 . 一种城市固废焚烧过程主蒸汽流量实时预测方法 : CN202210612435.6[P]. | 2022-05-31 . |
| MLA | 严爱军 et al. "一种城市固废焚烧过程主蒸汽流量实时预测方法" : CN202210612435.6. | 2022-05-31 . |
| APA | 严爱军 , 李昂 , 汤健 . 一种城市固废焚烧过程主蒸汽流量实时预测方法 : CN202210612435.6. | 2022-05-31 . |
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摘要 ：
一种耐高温硅橡胶材料及其制备方法属于硅橡胶材料技术领域。其特征在于，由以下质量分数组分原料构成：甲基乙烯基生胶100‑130份、白炭黑30‑50份、羟基硅油5‑10份，硫化剂1.5份，原子级分布的金属钨的氧化物的纳米氧化锆1‑10份。在纳米氧化锆上单原子，将其添加到硅橡胶中。在长时间的高温作用下，具有能大幅度维持硅橡胶物理性能的优点，并且操作简单。
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| GB/T 7714 | 王聪 , 李昂 , 韩晓东 . 一种耐高温硅橡胶材料及其制备方法 : CN202211447917.7[P]. | 2022-11-18 . |
| MLA | 王聪 et al. "一种耐高温硅橡胶材料及其制备方法" : CN202211447917.7. | 2022-11-18 . |
| APA | 王聪 , 李昂 , 韩晓东 . 一种耐高温硅橡胶材料及其制备方法 : CN202211447917.7. | 2022-11-18 . |
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摘要 ：
融合卷积神经网络与VLAD的闭环检测方法
关键词 ：
词袋模型 词袋模型 特征提取 特征提取 卷积神经网络 卷积神经网络 闭环检测 闭环检测
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| GB/T 7714 | 李昂 , 阮晓钢 , 黄静 et al. 融合卷积神经网络与VLAD的闭环检测方法 [J]. | 李昂 , 2021 , 38 (1) : 135-142 . |
| MLA | 李昂 et al. "融合卷积神经网络与VLAD的闭环检测方法" . | 李昂 38 . 1 (2021) : 135-142 . |
| APA | 李昂 , 阮晓钢 , 黄静 , 朱晓庆 , 计算机应用与软件 . 融合卷积神经网络与VLAD的闭环检测方法 . | 李昂 , 2021 , 38 (1) , 135-142 . |
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摘要 ：
传统的闭环检测方法大多采用人工设计的特征,很容易受到环境的影响。卷积神经网络通过提取层次化特征,更好地应对了光照变化,但忽略了图像的局部空间特性。针对该问题,提出一种融合VGG16与VGG-NetVLAD的闭环检测算法。该网络保留了VGG16的部分结构,并在最后一层引入了基于局部聚合描述符向量(VLAD)思想的池化层NetVLAD,使提取的特征更适用于闭环检测。实验表明,相较于传统的视觉词袋模型及其他几种深度学习方法,该算法具有更强的泛化性,可以在闭环检测中达到更高的准确率并满足实时性的要求。
关键词 ：
卷积神经网络 卷积神经网络 特征提取 特征提取 词袋模型 词袋模型 闭环检测 闭环检测
引用：
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| GB/T 7714 | 李昂 , 阮晓钢 , 黄静 et al. 融合卷积神经网络与VLAD的闭环检测方法 [J]. | 计算机应用与软件 , 2021 , 38 (01) : 135-142 . |
| MLA | 李昂 et al. "融合卷积神经网络与VLAD的闭环检测方法" . | 计算机应用与软件 38 . 01 (2021) : 135-142 . |
| APA | 李昂 , 阮晓钢 , 黄静 , 朱晓庆 . 融合卷积神经网络与VLAD的闭环检测方法 . | 计算机应用与软件 , 2021 , 38 (01) , 135-142 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The electrochemical CO2 reduction reaction (CO2RR) is of importance for reducing global CO2 emissions. Herein, we reported a highly active CO2RR catalyst, namely Co-N-Ni/NPCNSs, which is considered as an advanced single-site catalyst with Co-N-Ni bimetallic sites connected by a N bridge between Co and Ni. The N-bridged Co-N-Ni bimetallic sites were confirmed by the X-ray absorption spectroscopy. The Co-N-Ni/NPCNSs catalyst shows a higher turnover frequency of 2049 h(-1) at a low overpotential of 370 mV and CO faradaic efficiency of 96.4% compared to that of Co-N/NPCNSs (1205 h(-1) and 61.5%) and Ni-N/NPCNSs (404 h(-1) and 45.0%) with single Co-N-4 and Ni-N-4 sites, respectively. In situ synchrotron radiation Fourier transform infrared spectra and DFT calculations show that N-bridged Co-N-Ni bimetallic sites promote the formation of COOH* intermediates, thus accelerating CO2RR.
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| GB/T 7714 | Pei, Jiajing , Wang, Tao , Sui, Rui et al. N-Bridged Co-N-Ni: new bimetallic sites for promoting electrochemical CO2 reduction dagger [J]. | ENERGY & ENVIRONMENTAL SCIENCE , 2021 , 14 (5) : 3019-3028 . |
| MLA | Pei, Jiajing et al. "N-Bridged Co-N-Ni: new bimetallic sites for promoting electrochemical CO2 reduction dagger" . | ENERGY & ENVIRONMENTAL SCIENCE 14 . 5 (2021) : 3019-3028 . |
| APA | Pei, Jiajing , Wang, Tao , Sui, Rui , Zhang, Xuejiang , Zhou, Danni , Qin, Fengjuan et al. N-Bridged Co-N-Ni: new bimetallic sites for promoting electrochemical CO2 reduction dagger . | ENERGY & ENVIRONMENTAL SCIENCE , 2021 , 14 (5) , 3019-3028 . |
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摘要 ：
Metallic nanowires usually exhibit ultrahigh strength but suffered low ductility. Previous studies on pure metals suggested this strength-ductility trade-off results from limiting the dislocation activities. However, it is unclear whether such deformation model is valid for a solid solution alloy as well. Here, for the first time, the atomic-scale deformation process of AuCu nanowires with size of-16 nm was investigated in situ. The results show the NWs exhibit superplasticity (-185%) and high strengths (-2.98 GPa) at room temperature. It was discovered that superplasticity originates from continuous full dislocation nucleation and disappearance, as well as dislocation dipole formation and annihilation etc., which differ from the previous studies in pure metals. The observed full dislocation activities, also different from the ones in the previous studies, suggested that, as the size of the metals is below-100 nm, their deformation should be governed by partial dislocation and twinning. (c) 2021 Elsevier Ltd. All rights reserved.
关键词 ：
Plastic deformation Plastic deformation Transmission electron microscopy Transmission electron microscopy Mechanical property Mechanical property Strength-ductility trade-off Strength-ductility trade-off
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| GB/T 7714 | Fu, L. , Yang, C. , Wei, R. et al. In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature [J]. | MATERIALS TODAY NANO , 2021 , 15 . |
| MLA | Fu, L. et al. "In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature" . | MATERIALS TODAY NANO 15 (2021) . |
| APA | Fu, L. , Yang, C. , Wei, R. , Pei, X. , Teng, J. , Kong, D. et al. In situ atomic-scale observation of AuCu alloy nanowire with superplasticity and high strength at room temperature . | MATERIALS TODAY NANO , 2021 , 15 . |
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摘要 ：
Rhenium is the key element for improving the mechanical properties in gamma/gamma' structure single-crystal Nibased superalloys, but its oxidation-induced evaporation results in a detrimental decrease in corrosion resistance. The in situ Re evaporation process of a single lamella of a high Re-containing Ni-based superalloy is recorded in an environmental transmission electron microscope. The local aggregation of Re in the inner border of the gamma phase and subsequent evaporation forms channels for the accelerated oxidation of the base and other elements. The real oxidation process of Re evaporation provides detailed and essential information on corrosive gas resistance properties at the nanoscale. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词 ：
Interface segregation Interface segregation Oxidation Oxidation Rhenium Rhenium Superalloy Superalloy Transmission electron microscopy Transmission electron microscopy
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| GB/T 7714 | Chen, Yanhui , Zhang, Wenhan , Zhao, Yunsong et al. Oxidation-induced rhenium evaporation in Ni-based single crystal superalloy thin lamella [J]. | SCRIPTA MATERIALIA , 2021 , 203 . |
| MLA | Chen, Yanhui et al. "Oxidation-induced rhenium evaporation in Ni-based single crystal superalloy thin lamella" . | SCRIPTA MATERIALIA 203 (2021) . |
| APA | Chen, Yanhui , Zhang, Wenhan , Zhao, Yunsong , Zhai, Yadi , Zhang, Bin , Lu, Hui et al. Oxidation-induced rhenium evaporation in Ni-based single crystal superalloy thin lamella . | SCRIPTA MATERIALIA , 2021 , 203 . |
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摘要 ：
We report an Ag1 single-atom catalyst (Ag1 /MnO2 ), which was synthesized from thermal transformation of Ag nanoparticles (NPs) and surface reconstruction of MnO2 . The evolution process of Ag NPs to single atoms is firstly revealed by various techniques, including in situ ETEM, in situ XRD and DFT calculations. The temperature-induced surface reconstruction process from the MnO2 (211) to (310) lattice plane is critical to firmly confine the existing surface of Ag single atoms; that is, the thermal treatment and surface reconstruction of MnO2 is the driving force for the formation of single Ag atoms. The as-obtained Ag1 /MnO2 achieved 95.7 % Faradic efficiency at -0.85 V vs. RHE, and coupled with long-term stability for electrochemical CO2 reduction reaction (CO2 RR). DFT calculations indicated single Ag sites possessed high electronic density close to Fermi Level and could act exclusively as the active sites in the CO2 RR. As a result, the Ag1 /MnO2 catalyst demonstrated remarkable performance for the CO2 RR, far surpassing the conventional Ag nanosized catalyst (AgNP /MnO2 ) and other reported Ag-based catalysts.
关键词 ：
silver silver CO2 reduction reaction CO2 reduction reaction surface reconstruction surface reconstruction anti-Ostwald ripening anti-Ostwald ripening
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| GB/T 7714 | Zhang Ningqiang , Zhang Xinxin , Tao Lei et al. Silver Single-Atom Catalyst for Efficient Electrochemical CO2 Reduction Synthesized from Thermal Transformation and Surface Reconstruction. [J]. | Angewandte Chemie , 2021 , 60 (11) : 6170-6176 . |
| MLA | Zhang Ningqiang et al. "Silver Single-Atom Catalyst for Efficient Electrochemical CO2 Reduction Synthesized from Thermal Transformation and Surface Reconstruction." . | Angewandte Chemie 60 . 11 (2021) : 6170-6176 . |
| APA | Zhang Ningqiang , Zhang Xinxin , Tao Lei , Jiang Peng , Ye Chenliang , Lin Rui et al. Silver Single-Atom Catalyst for Efficient Electrochemical CO2 Reduction Synthesized from Thermal Transformation and Surface Reconstruction. . | Angewandte Chemie , 2021 , 60 (11) , 6170-6176 . |
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摘要 ：
Oxygen-affected cracking commonly presents on thin Ni-based single crystal superalloy components serving in high temperature and oxidizing environments. This study uses a newly developed in-situ thermal-stress environmental transmission electron microscope to investigate the oxidation and fracture behaviors of Ni-based single crystal superalloy at 650 degrees C under stress. The in-situ oxidation was found to change the tensile fracture mode from the close-packed {111} planes of plastic fracture to {001} planes adjacent to gamma/gamma ' interfaces of brittle fracture. The microanalysis also revealed that the gamma ' cuboids, gamma phase, and gamma/gamma interface exhibit different oxidation behavior, thus underscoring the thickness debit effect. [GRAPHICS] .
关键词 ：
in-situ transmission electron microscopy in-situ transmission electron microscopy oxidation oxidation Ni-based superalloys Ni-based superalloys environment-assisted cracking environment-assisted cracking
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| GB/T 7714 | Li, Xueqiao , Liu, Yinong , Zhao, Yunsong et al. Oxygen changes crack modes of Ni-based single crystal superalloy [J]. | MATERIALS RESEARCH LETTERS , 2021 , 9 (12) : 531-539 . |
| MLA | Li, Xueqiao et al. "Oxygen changes crack modes of Ni-based single crystal superalloy" . | MATERIALS RESEARCH LETTERS 9 . 12 (2021) : 531-539 . |
| APA | Li, Xueqiao , Liu, Yinong , Zhao, Yunsong , Chen, Yanhui , Li, Ang , Zhang, Jianfei et al. Oxygen changes crack modes of Ni-based single crystal superalloy . | MATERIALS RESEARCH LETTERS , 2021 , 9 (12) , 531-539 . |
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