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Journal of Environmental Sciences 2024年第6期140卷 157-164页

作者： Xiaofeng Cui Xueting Wang Lijun Zhao Jixin Wang tingting Kong Yujie Xiong Anhui Engineering Research Center of Carbon Neutrality The Key Laboratory of Functional Molecular SolidsMinistry of EducationAnhui Laboratory of Molecular-Based MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002China School of Chemistry and Chemical Engineering Anqing Normal UniversityAnqing 246011China School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China

Homogenous molecular photocatalysts for CO_(2)reduction,especially metal complex-based photosensitizer-catalyst assemblages,have been attracting extensive research interests due to their efficiency and ***,their low durability and recyclability limit practical *** this work,we immobilized the catalysts of metal terpyridyl complexes and the photosensitizer of[Ru(bpy)3]Cl2onto the surface of carbon nanotubes through covalent bonds and electrostatic interactions,respectively,transforming the homogeneous system into a heterogeneous *** characterizations prove that these metal complexes are well dispersed on CNTs with a high loading(ca.12 wt.%).Photocatalytic measurements reveal that catalytic activity is remarkably enhanced when the molecular catalysts are anchored,which is three times higher than that of homogeneous molecular ***,when the photosensitizer of[Ru(bpy)3]Cl2is immobilized,the side reaction of hydrogen evolution is completely suppressed and the selectivity for CO production reaches 100%,with its durability also significantly *** work provides an effective pathway for constructing heterogeneous photocatalysts based on rational assembly of efficient molecular photosensitizers and catalysts.

关键词： durability selectivity catalyst

Adsorptive interaction between typical VOCs and various topological zeolites:Mixture effect and mechanism

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Journal of Environmental Sciences 2024年第2期136卷 626-636页

作者： Bo Yu Hua Deng Yuqin Lu tingting Pan Wenpo Shan Hong He Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Adsorption is one of the most feasible and effective methods to alleviate the volatile organic compounds(VOCs)***,the mixture effect and mechanism for competitive adsorption of VOCs on zeolites are barely *** this study,toluene,acetone,and ethyl acetate as prevalent VOCs species were removed by four potential zeolites(13X,USY,Beta,ZSM-5)in both single-and multi-component *** structure-property relationship between adsorbate-adsorbent pairs was revealed by X-ray diffraction,scanning electron microscopy,energy dispersive spectrometer,X-ray fluorescence,N_(2) adsorption and density function theory *** molecular polarity and volatility of VOCs species played key roles in adsorption and the dynamic uptakes were generally listed as follows:ethyl acetate>toluene>*** for the above VOCs mixtures,13X zeolite selectively adsorbed oxygenated VOCs rather than *** contrast,USY exhibited a preference to trap *** acetate could be readily enriched by ZSM-5 and Beta *** possible explanations and implications are discussed based on the subtle change in electron *** results obtained are vital for understanding the mixture effect of VOCs adsorption and may guide the selection of proper adsorbent for real applications.

关键词： Adsorption Zeolites VOCs Mixture effect DFT

AP assembled on ultrafine aluminum particle and its application to NEPE propellant

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Defence Technology（防务技术） 2024年第6期36卷 20-29页

作者： Huixin Wang Qiang Li Hui Ren Liangjun Xie tingting Liu Zhihong Chen State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China Inner Mongolia Institute of Synthetic Chemicals Hohhot 010010China

Coating modification is an important way to enhance the reactivity of aluminum *** this paper,ammonium perchlorate and aluminum powder were assembled into energetic microunits by liquid deposition *** particles with AP as shell and ultrafine aluminum powder as the core(Al@AP)were *** micromorphology results show that the coated particles are about 5μm,and the coating layer is evenly distributed on the outer surface of aluminum powder,indicating a complete *** energetic microunits were implanted into the nitrate ester plasticizing adhesive system(NEPE)as solid phase *** effect of filler on the rheological properties,safety,mechanical properties,thermal reaction and energy properties of the system was analyzed by comparing with the raw aluminum *** test results show that the rheological properties,mechanical properties and pressure index of NEPE containing system Al@AP meets the requirements of solid propellant *** with Al based propellant,the mechanical sensitivity and thermal sensitivity are decreased,the safety is better,and the explosion heat of the propellant is increased by 7.8%.The engine test shows that the specific impulse is increased by 1.2 ***@AP can improve the energy output and safety of NEPE propellant,and has potential application prospects in high-energy propellants.

关键词： Aluminum powder Coating NEPE propellant Energy output Applied research

Weakly-supervised instance co-segmentation via tensor-based salient co-peak search

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Frontiers of Computer Science 2024年第2期18卷 83-92页

作者： Wuxiu QUAN Yu HU tingting DAN Junyu LI Yue ZHANG Hongmin CAI School of Computer Science Guangdong Polytechnic Normal UniversityGuangzhou 510665China School of Computer Science and Engineering South China University of TechnologyGuangzhou 510006China

Instance co-segmentation aims to segment the co-occurrent instances among two *** task heavily relies on instance-related cues provided by co-peaks,which are generally estimated by exhaustively exploiting all paired candidates in point-to-point ***,such patterns could yield a high number of false-positive co-peaks,resulting in over-segmentation whenever there are mutual *** tackle with this issue,this paper proposes an instance co-segmentation method via tensor-based salient co-peak search(TSCPS-ICS).The proposed method explores high-order correlations via triple-to-triple matching among feature maps to find reliable co-peaks with the help of co-saliency *** proposed method is shown to capture more accurate intra-peaks and inter-peaks among feature maps,reducing the false-positive rate of co-peak *** having accurate co-peaks,one can efficiently infer responses of the targeted *** on four benchmark datasets validate the superior performance of the proposed method.

关键词： weakly-supervised co-segmentation co-peak tensormatching deep network instance segmentation

Temporal and spatial regulation of biomimetic vascularization in 3D-printed skeletal muscles

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Bio-Design and Manufacturing 2024年第5期7卷 597-610页

作者： Minxuan Jia tingting Fan Tan Jia Xin Liu Heng Liu Qi Gu Key Laboratory of Organ Regeneration and Reconstruction State Key Laboratory of Membrane BiologyInstitute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Department of Orthopaedics Beijing Jishuitan HospitalCapital Medical UniversityBeijing 100035China

In the intricate skeletal muscle tissue,the symbiotic relationship between myotubes and their supporting vasculature is pivotal in delivering essential oxygen and *** study explored the complex interplay between skeletal muscle and endothelial cells in the vascularization ofmuscle *** harnessing the capabilities of three-dimensional(3D)bioprinting and modeling,we developed a novel approach involving the co-construction of endothelial and muscle cells,followed by their subsequent *** findings highlight the importance of the interaction dynamics between these two cell ***,introducing endothelial cells during the advanced phases of muscle differentiation enhanced myotube ***,it stimulated the development of the vascular network,paving the way for the early stages of vascularized skeletal muscle *** methodology proposed in this study indicates the potential for constructing large-scale,physiologically aligned skeletal ***,it highlights the need for exploring the delicate equilibrium and mutual interactions between muscle and endothelial *** on the multicell-type interaction model,we can predict promising pathways for constructing even more intricate tissues or organs.

关键词： Skeletal muscle Vascularization 3D bioprinting Cell interaction

Abnormal Traffic Detection for Internet of Things Based on an Improved Residual Network

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Computers, Materials & Continua 2024年第6期79卷 4433-4448页

作者： tingting Su Jia Wang Wei Hu Gaoqiang Dong Jeon Gwanggil School of Computer Science and Technology Xinjiang UniversityUrumqi830046China School of Cyber Science and Engineering Jinling Institute of Technology CityNanjing210000China College of Information Technology Incheon National UniversityIncheon22012Korea

Along with the progression of Internet of Things(IoT)technology,network terminals are becoming continuously more *** has been widely applied in various scenarios,including urban infrastructure,transportation,industry,personal life,and other socio-economic *** introduction of deep learning has brought new security challenges,like an increment in abnormal traffic,which threatens network *** feature extraction leads to less accurate classification *** abnormal traffic detection,the data of network traffic is high-dimensional and *** data not only increases the computational burden of model training but also makes information extraction more *** address these issues,this paper proposes an MD-MRD-ResNeXt model for abnormal network traffic *** fully utilize the multi-scale information in network traffic,a Multi-scale Dilated feature extraction(MD)block is *** module can effectively understand and process information at various scales and uses dilated convolution technology to significantly broaden the model’s receptive *** proposed Max-feature-map Residual with dual-channel pooling(MRD)block integrates the maximum feature map with the residual *** module ensures the model focuses on key information,thereby optimizing computational efficiency and reducing unnecessary information *** results show that compared to the latest methods,the proposed abnormal traffic detection model improves accuracy by about 2%.

关键词： Abnormal network traffic deep learning residual network multi-scale feature extraction max-feature-map

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口咽旁间隙异位支气管囊肿一例

中华放射学杂志 2019年第5期53卷 413-414页

作者：杜亭亭周莹钟唐力绵阳市中心医院放射科 621000

报道1例33岁女性口咽旁间隙异位支气管囊肿患者的临床资料。患者临床主要表现为右颈部包块;影像表现为右侧口咽旁间隙一囊性低密度影,平扫囊内密度均匀、囊壁光整、边界清楚,增强后囊内容物未见强化、囊壁呈轻度强化;病理检查诊断为右... 详细信息

报道1例33岁女性口咽旁间隙异位支气管囊肿患者的临床资料。患者临床主要表现为右颈部包块;影像表现为右侧口咽旁间隙一囊性低密度影,平扫囊内密度均匀、囊壁光整、边界清楚,增强后囊内容物未见强化、囊壁呈轻度强化;病理检查诊断为右侧颈部支气管囊肿伴感染。

关键词：支气管囊肿体层摄影术,X线计算机

Facile synthesis of nanoparticles-stacked Co_(3)O_(4)nanoflakes with catalase-like activity for accelerating wound healing

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Regenerative Biomaterials 2024年第3期3卷 82-91页

作者： Yanan Huang Wanyi Liao Wenxuan Wang tingting Zhang Yan Zhang Lei Lu school and Hospital of Stomatology Wenzhou Medical UniversityWenzhou 325027China sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs School of Life Science and EngineeringSouthwest jiaotong UniversityChengdu 610031China Key Lab of Advanced Technology of Materials of Education Ministry School of Materials Science and EngineeringSouthwest jiaotong UniversityChengdu 610031China school of Chemistry Southwest Jiaotong UniversityChengduSichuan 610031China

Delayed wound healing caused by excessive reactive oxygen species(Ros)remains a considerable *** recent years,metal oxide nanozymes have gained significant attention in biomedical ***,a comprehensive investigation of Co_(3)O_(4)-based nanozymes for enhancing wound healing and tissue regeneration is *** study focuses on developing a facile synthesis method to produce high-stability and costeffective Co_(3)O_(4)nanoflakes(NFs)with promising catalase(CAT)-like activity to regulate the oxidative microenvironment and accelerate wound *** closely arranged Co_(3)O_(4)nanoparticles(NPs)within the NFs structure result in a significantly larger surface area,thereby amplifying the enzymatic activity compared to commercially available Co_(3)O_(4)*** physiological conditions,itwas observed that CogO,NFs efficientlybreak down hydrogen peroxide(H_(2)O_(2))without generating harmful radicals(OH).Moreover,they exhibit excellent compatibility with various cells involved in wound healing,promoting fibroblast growth and protecting cells from oxidatives *** a ratmodel,Co_(3)O_(4) NFs facilitate both the hemostatic and proliferative phases of wound healing,consequently accelerating the ***,thepromising results of Co_(3)O_(4)NFs highlight their potential in promoting wound healing and tissue regeneration.

关键词： Co_(3)O_(4) nanoflake nanozyxygen species wound healing

Strategic Study on the Development of Space Science in China and Proposals for Future Missions

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空间科学学报 2024年第4期44卷 699-703页

作者： WANG Chi SONG tingting LI Ming CAO Song National Space Science Center Chinese Academy of SciencesBeijing 100190

Since 2011,the Chinese Academy of Sciences(CAS)has implemented the Strategic Priority Program on Space Science(SPP).A series of scientific satellites have been developed and launched,such as Dark Matter Particle Explorer(DAMPE),Quantum Experiments at Space Scale(QUESS),Advanced Space-based Solar Observatory(ASO-S),Einstein Probe(EP),and significant scientific outcomes have been *** order to plan the future space science missions in China,CAS has organized the Chinese space science community to conduct medium and long-term development strategy studies,and summarized the major scientific frontiers of space science as“One Black,Two Dark,Three Origins and Five Characterizations”.Five main scientific themes have been identified for China’s future breakthroughs,including the Extreme Universe,Space-Time Ripples,the Panoramic View of the Sun and Earth,the Habitable Planets,and Biological&Physical Science in *** science satellite missions to be implemented before 2030 are proposed accordingly.

关键词： Space science Space missions Space exploration

基于动作注意策略的树形DDQN目标候选区域提取方法

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电子与信息学报 2019年第3期41卷 666-673页

作者：左国玉杜婷婷马蕾卢佳豪龚道雄北京工业大学信息学部北京100124 北京市计算智能与智能系统重点实验室北京100124

针对机器人在家庭环境下的目标检测问题,该文提出一种基于动作注意策略的树形双深度Q网络(TDDQN)目标候选区域提取的方法,该方法将双深度Q网络(DDQN)的方法与树结构的方法相结合,通过执行改变检测框的动作以使目标逐渐集中在检测框内。... 详细信息

针对机器人在家庭环境下的目标检测问题,该文提出一种基于动作注意策略的树形双深度Q网络(TDDQN)目标候选区域提取的方法,该方法将双深度Q网络(DDQN)的方法与树结构的方法相结合,通过执行改变检测框的动作以使目标逐渐集中在检测框内。首先采用DDQN方法在执行较少的动作后选择出当前状态的最佳动作,获取符合条件的候选区域。然后根据执行所选择动作之后所得到的状态重复执行上述过程,以此构成树结构的多条"最佳"路径。最后采用非极大值抑制的方法从多个符合条件的候选区域选择出最佳候选区域。在PascalVOC2007以及Pascal VOC2012上的实验结果表明,在不同数量的候选区域、不同阈值的IoU和不同大小以及不同种类对象的实验条件下,所提方法较其他方法都有着更好的检测性能,可以较好地实现目标检测。

关键词：目标检测候选区域树结构双深度Q网络动作注意