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Recent advances in semi-heterogenous photocatalysis in organic synthesis

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Chinese Chemical Letters 2025年第2期36卷 94-117页

作者： Jia-Cheng Hou wei Cai Hong-Tao Ji Li-Juan Ou wei-Min he School of Chemistry and Chemical Engineering University of South China School of Pharmaceutical Sciences Hunan University of Medicine School of Materials Science and Engineering Hunan Institute of Technology

Semi-heterogeneous photocatalysis has emerged as a powerful and productive platform in organic chemistry, which provides mild and eco-friendly conditions for a diverse range of bond-forming *** synergy of homogeneous catalysts and heterogeneous catalysts inherits their main advantages, such as higher activities, easy separation and superior recyclability. In this review, we summarize the recent advances in recyclable semi-heterogenous protocols for the light promoted bond-forming reactions and identify directions for future research according to the different photocatalysts/metal/redox catalysts involved. Notably, this review is not a comprehensive description of reported literature but aim to highlight and illustrate key concepts, strategies, reaction model, reaction conditions and mechanisms.

关键词： Bond-forming Organic synthesis Photocatalysis Recyclable Semi-heterogeneous

Joint Estimation of SOH and RUL for Lithium-Ion Batteries Based on Improved Twin Support Vector Machineh

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Energy Engineering 2025年第1期122卷 243-264页

作者： Liyao Yang Hongyan Ma Yingda Zhang wei he School of Electrical and Information Engineering Beijing University of Civil Engineering and ArchitectureBeijing100044China Institute of Distributed Energy Storage Safety Big Data Beijing100044China Beijing Key Laboratory of Intelligent Processing for Building Big Data Beijing100044China

Accurately estimating the State of health(SOH)and Remaining Useful Life(RUL)of lithium-ion batteries(LIBs)is crucial for the continuous and stable operation of battery management ***,due to the complex internal chemical systems of LIBs and the nonlinear degradation of their performance,direct measurement of SOH and RUL is *** address these issues,the Twin Support Vector Machine(TWSVM)method is proposed to predict SOH and ***,the constant current charging time of the lithium battery is extracted as a health indicator(HI),decomposed using Variational Modal Decomposition(VMD),and feature correlations are computed using Importance of Random Forest Features(RF)to maximize the extraction of critical factors influencing battery performance ***,to enhance the global search capability of the Convolution Optimization Algorithm(COA),improvements are made using Good Point Set theory and the Differential Evolution *** Improved Convolution Optimization Algorithm(ICOA)is employed to optimize TWSVM parameters for constructing SOH and RUL prediction ***,the proposed models are validated using NASA and CALCE lithium-ion battery *** results demonstrate that the proposed models achieve an RMSE not exceeding 0.007 and an MAPE not exceeding 0.0082 for SOH and RUL prediction,with a relative error in RUL prediction within the range of[-1.8%,2%].Compared to other models,the proposed model not only exhibits superior fitting capability but also demonstrates robust performance.

关键词： State of health remaining useful life variational modal decomposition random forest twin support vector machine convolutional optimization algorithm

A novel transient strategy:transient electronics based on energetic materials

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Defence Technology(防务技术) 2025年第2期44卷 111-130页

作者： Yutao Wang Zhongliang Ma wei he Yongli Zhang Peijin Liu School of Environmental and Safety Engineering North University of ChinaTaiyuan 030051China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065China Xi'an North Hui'an Chemical Industry Co.Ltd Xi'an 710302China Science and Technology on Combustion Internal Flow and Thermostructure LaboratoryNorthwestern Polytechnical UniversityXi'an 710072China

Transient electronics is a versatile tool that finds applications in various fields,including medical biology,environmental protection,and data information *** the context of data protection,the traditional passive degradation transient mode is being replaced by the active destruction mode,which features a short self-destruction time and provides greater resistance to *** article presents an overview of recent progress in transient electronics,assessing the benefits and suitability of varying transient *** article also analyses the influence of transient electronics on military security while emphasizing the advantages of implementing energetic ***,the article introduces energetic transient devices and evaluates their ability to support the autonomous operation of transient electronic devices.

关键词： Transient electronics Energetic materials

EDA-complexes-enabled photochemical synthesis of α-amino acids with imines and tetrabutylammonium oxalate

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Chinese Chemical Letters 2025年第1期36卷 1-2页

作者： Min-Hang Zhou Jun Jiang wei-Min he School of Chemistry and Chemical Engineering University of South ChinaHengyang 421001China

The synthesis ofα-amino acid from imines with different carbonyl sources is attractive for both synthetic organic and medicinal chemistry ***,which were easily available from the corresponding ketones and amines,were employed as one of the most ideal ***,cyanation and subsequent hydrolysis were required to install the carboxyl group^([1]).In these cases,the toxicity of the cyanation reagents limited its further synthetic applications in organic ***,metal activation of imine substrates to make the organometallic intermediate and trap CO_(2) to give the desiredα-amino acid were also developed by many groups(Scheme 1A).The utilization of stoiochiometric amounts of metal reagents was required to realize the ***,Yu reported a novel photocatalytic reductive carboxylation protocol for synthesis ofα-amino acid from imines with CO_(2)as the carbonyl source^([2]).

关键词： synthesis carbonyl photochemical

Vibration safety assessment and parameter analysis of buried oil pipelines based on vibration isolation holes under strong surface impact

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Earthquake Engineering and Engineering Vibration 2025年第1期24卷 69-82页

作者： Wang Guobo Mei Hua Wang Jianning he wei Yin Yao Zhai Yuxin Zuo Pengfei College of Civil Engineering and Architecture Wenzhou UniversityWenzhou 325035China Zhejiang Engineering Research Center of Disaster Prevention and Mitigation for Coastal Soft Soil Foundation WenZhou 325035China China National Machinery Industry Co. Ltd.Beijing 100080China Faculty of Engineering China University of GeosciencesWuhan 430074China China Railway Construction Group Co. Ltd.Beijing 100072China School of Civil Engineering and Architecture Wuhan University of TechnologyWuhan 430070China

Strong surface impact will produce strong vibration,which will pose a threat to the safety of nearby buried pipelines and other important lifeline *** on the verified numerical method,a comprehensive numerical parameter analysis is conducted on the key influencing factors of the vibration isolation hole(VIH),which include hole diameter,hole net spacing,hole depth,hole number,hole arrangement,and soil *** results indicate that a smaller ratio of net spacing to hole diameter,the deeper the hole,the multi-row hole,the hole adoption of staggered arrangements,and better site soil conditions can enhance the efficiency of the VIH *** average maximum vibration reduction efficiency within the vibration isolation area can reach 42.2%.The vibration safety of adjacent oil pipelines during a dynamic compaction projection was evaluated according to existing standards,and the measurement of the VIH was recommended to reduce excessive *** single-row vibration isolation scheme and three-row staggered arrangement with the same hole parameters are suggested according to different *** research findings can serve as a reference for the vibration safety analysis,assessment,and control of adjacent underground facilities under the influence of strong surface impact loads.

关键词： vibration isolation hole buried oil pipeline strong surface impact vibration velocity vibration safety assessment

Utilizing electronic assisted enhancement:An innovative approach for studying the thermal decomposition and combustion of ionic liquids

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Defence Technology(防务技术) 2025年第2期44卷 179-189页

作者： Cailing Zhang Yutao Wang Baiquan Chen Zhenguo Pang Hongqi Nie Quan Zhu Peijin Liu wei he College of Chemical Engineering Sichuan UniversityChengdu 610065China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065China School of Environmental and Safety Engineering North University of ChinaTaiyuan 030051China Science and Technology on Combustion Internal Flow and Thermostructure LaboratoryNorthwestern Polytechnical UniversityXi'an 710072China

Flammable ionic liquids exhibit high conductivity and a broad electrochemical window,enabling the generation of combustible gases for combustion via electrochemical decomposition and thermal *** characteristic holds significant implications in the realm of novel satellite *** a fraction of the electrical energy into energetic ionic liquid fuels,the thermal decomposition process is facilitated by reducing the apparent activation energy required,and electrical energy can trigger the electrochemical decomposition of ionic liquids,presenting a promising approach to enhance combustion efficiency and energy *** study applied an external voltage during the thermal decomposition of 1-ethyl-3-methylimidazole nitrate([EMIm]NO_(3)),revealing the effective alteration of the activation energy of[EMIm]NO_(3).The pyrolysis,electrochemical decomposition,and electron assisted enhancement products were identified through Thermogravimetry-Differential scanning calorimetry-Fourier transform infrared-Mass spectrometry(TG-DSC-FTIR-MS)and gas chromatography(GC)analyses,elucidating the degradation mechanism of[EMIm]NO_(3).Furthermore,an external voltage was introduced during the combustion of[EMIm]NO_(3),demonstrating the impact of voltage on the combustion process.

关键词： Flammable ionic liquids Kinetic methods Electron assisted enhanced thermal decomposition Electron assisted enhanced combustion

间断性记忆的整体化思考:突发公共事件的集体记忆建构

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华东师范大学学报(哲学社会科学版) 2025年第1期57卷 115-127,183页

作者：何威华东师范大学社会工作系华东师范大学上海市“中国特色的转型社会学研究”社会科学创新研究基地上海200241

集体记忆的核心在于记忆历史连续性及其社会建构性的动态整合。现代社会公共性突发事件的频繁出现,可以作为集体记忆的源头与节点去审视。围绕集体记忆的建构“能否间断连续”进行思考,可以尝试在“理念-意象”的集体记忆建构框架下,在... 详细信息

集体记忆的核心在于记忆历史连续性及其社会建构性的动态整合。现代社会公共性突发事件的频繁出现,可以作为集体记忆的源头与节点去审视。围绕集体记忆的建构“能否间断连续”进行思考,可以尝试在“理念-意象”的集体记忆建构框架下,在记忆不同的叙事维度将散点式的记忆碎片整合并类别化,进而整合出具有沿循“勾勒-黏合-构筑”脉络的现代社会公共突发事件集体记忆整体性建构逻辑。同时,在当下不确定性社会以及特定的文化语境下,以整体性为目标进行突发公共事件集体记忆能动性建构和维系,也是现代社会与国家在多重时间维度整合有益经验,以及重构对社会文化结构性认知的基础。

关键词：集体记忆理念意象突发公共事件

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Sampling Method for Complex Scene Samples in the Intelligent Interpretation of Natural Resources Remote Sensing

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Journal of Geo-Information Science 2025年第2期27卷 331-349页

作者： Li, Lianfa Gao, Xilin he, wei Chen, Miaomiao Yang, Xiaomei Wang, Zhihua Zhang, Junyao Liu, Xiaoliang State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China University of Chinese Academy of Sciences Beijing100049 China

[Objectives] As remote sensing classification and interpretation technologies continue to advance, the intelligent interpretation of natural resources in complex environments has become a critical research focus. The accuracy and reliability of remote sensing data interpretation depend fundamentally on the quality and representativeness of the samples used in the analysis. In China, diverse terrain, complex meteorological conditions, and fragmented land surface structures introduce significant spatiotemporal variability, making the selection and quality of remote sensing samples particularly challenging. Traditional sampling methods often fail to adequately represent the full spectrum of characteristics inherent in these diverse landscapes, leading to substantial biases and inaccuracies in interpretation outcomes. [Methods] To address these challenges, this study offers a comprehensive review of key elements in remote sensing classification, encompassing methods for sampling labeled data, techniques for multi-scale morphological transformations to augment samples, and strategies for evaluating the quality of labeled samples. The research emphasizes the critical importance of optimizing sample selection to reduce bias and improve interpretation accuracy. It explores the theoretical foundations for sample optimization, highlighting the necessity of obtaining representative samples that accurately capture the complexity and variability of the land surface. [Results] One of the primary contributions of this study is the development of a novel sampling optimization method that integrates terrain complexity into the sampling process. By considering the diverse and intricate nature of the landscape, our approach enhances the representativeness of the samples, thereby reducing errors introduced by sampling bias and significantly improving the accuracy of remote sensing interpretation. In particular, we emphasize the role of multi-scale morphological transformations, which a

关键词： Miocene

Nd@C3N4-photoredox/chlorine dual catalyzed synthesis and evaluation of antitumor activities of 4-alkylated sulfonyl ketimines

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Chinese Chemical Letters 2025年第2期36卷 412-416页

作者： Hong-Tao Ji Yu-Han Lu Yan-Ting Liu Yu-Lin Huang Jiang-Feng Tian Feng Liu Yan-Yan Zeng Hai-Yan Yang Yong-Hong Zhang wei-Min he Department of Ophthalmology The Affiliated Nanhua Hospital Hengyang Medical School University of South China School of Chemistry and Chemical Engineering University of South China Department of Lung Cancer and Gastroenterology Hunan Cancer Hospital The Affiliated Cancer Hospital of Xiangya School of Medicine Central South University

The first example of Nd@C3N4-photoredox/chlorine dual catalyzed alkylation with unactivated alkanes as the alkyl sources has been developed,which allows for the synthesis of various 4-alkylated cyclic sulfonyl *** this process,chlorine functions as both a redox and hydrogen atom transfer *** synergism of the reversible Nd2+/Nd3+and Clˉ/Cl˙redox pairs significantly enhances overall photocatalytic *** in vitro anticancer activity of 4-alkylated products was evaluated by using the CCK8assay against both human choroidal melanoma （MUM-2B） and lung cancer （A549） *** 3da showed approximately triple the potency of 5-fluorouracil.

关键词： Chlorine Dual catalysis Hydrogen atom transfer Redox catalyst Semiconductor