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COMPrompter: reconceptualized segment anything model with multiprompt network for camouflaged object detection

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Science China(Information Sciences) 2025年第1期68卷 189-203页

作者： xiaoqin ZHANG Zhenni YU Li zhao Deng-Ping fan Guobao xiao Zhejiang Province Key Laboratory of Intelligent Informatics for Safety and Emergency Wenzhou University Nankai International Advanced Research Institute (SHENZHEN FUTIAN) College of Computer Science Nankai University School of Computer Science and Technology Tongji University

We rethink the segment anything model(SAM) and propose a novel multiprompt network called COMPrompter for camouflaged object detection(COD). SAM has zero-shot generalization ability beyond other models and can provide an ideal framework for COD. Our network aims to enhance the single prompt strategy in SAM to a multiprompt strategy. To achieve this, we propose an edge gradient extraction module, which generates a mask containing gradient information regarding the boundaries of camouflaged objects. This gradient mask is then used as a novel boundary prompt, enhancing the segmentation process. Thereafter, we design a box-boundary mutual guidance module, which fosters more precise and comprehensive feature extraction via mutual guidance between a boundary prompt and a box prompt. This collaboration enhances the model's ability to accurately detect camouflaged objects. Moreover, we employ the discrete wavelet transform to extract high-frequency features from image embeddings. The high-frequency features serve as a supplementary component to the multiprompt ***, our COMPrompter guides the network to achieve enhanced segmentation results, thereby advancing the development of SAM in terms of COD. Experimental results across COD benchmarks demonstrate that COMPrompter achieves a cutting-edge performance, surpassing the current leading model by an average positive metric of 2.2% in COD10K. In the specific application of COD, the experimental results in polyp segmentation show that our model is superior to top-tier methods as well. The code will be made available at https://***/guobaoxiao/COMPrompter.

关键词： segment anything model camouflaged object detection boundary prompt

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Gut Microbiota Community Shift with Severity of Coronary Artery Disease

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Engineering 2021年第12期7卷 1715-1724页

作者： Jia-Lu Hu Zhi-Feng Yao Min-Na Tang Chun Tang xiao-fan zhao Xi Su Dan-Bo Lu Qiu-Rong Li Zhang-Sheng Wang Yan Yan Zeneng Wang Department of Cardiology Zhongshan HospitalFudan UniversityShanghai 200032China Research Institute of General Surgery Jinling HospitalMedical School of Nanjing UniversityNanjing 210002China Department of Laboratory Medicine Zhongshan HospitalFudan UniversityShanghai 200032China Department of Cardiology The Fifth People’s Hospital of ShanghaiFudan UniversityShanghai 200240China Department of Cardiovascular and Metabolic Sciences Lerner Research InstituteCleveland ClinicClevelandOH 44195USA

Gut microbiota community shift with coronary artery disease(CAD)has been reported in several limited cohorts during the past several ***,whether the enriched or decreased microbiota taxa with CAD can be reproducible deserves further investigation and *** this study,78 human subjects were *** these,19 were diagnosed without stenosis in coronary artery(control group,referred to herein as Ctrl),14 with stenosis less than 50%(LT50),and 45 with stenosis greater than 50%(GT50).Fecal samples were collected and DNA was extracted to perform 16S ribosomal RNA(rRNA)gene *** operational taxonomic units(OTUs)were analyzed to identify taxa specific to different groups;next,multivariate logistic regression was employed to test whether the defined taxa could independently predict CAD *** found that Deltaproteobacteria,Fusobacterium,Bilophila,Actinomyces,and Clostridium XIX were enriched in Ctrl;Prevotellaceae,Parabacteriodes,and Butyricicoccus were enriched in LT50;and Roseburia and Butyricimonas were enriched in *** analysis revealed that increased populations of Deltaproteobacteria,Fusobacterium,Bilophila,and Desulfovibrionaceae were associated with a 0.26-fold,0.21-fold,0.18-fold,and 0.26-fold decreased risk of CAD,respectively(p<0.05),and an increased Prevotellaceae population was associated with a 5.63-fold increased risk of CAD(p<0.01).A combination of the 20 microbial taxa achieved an area under the receiver operating characteristic(ROC)curve of higher than 0.88 for all discriminations between LT50 vs Ctrl,GT50 vs Ctrl,LT50+GT50 vs Ctrl,and GT50 vs Ctrl+***,the microbial taxa previously reported as enriched in CAD patients or healthy controls could not be observed in our cohort except for *** conclusion,CAD patients showed a different microbial taxa signature than the healthy ***,the non-reproducibility of the microbiota taxa enriched in CAD across different cohorts limits the use of this s

关键词： Gut microbiota Atherosclerosis Coronary artery disease

Unmasking Social Robots’Camouflage:A GNN-Random Forest Framework for Enhanced Detection

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Computers, Materials & Continua 2025年第1期82卷 467-483页

作者： Weijian fan Chunhua Wang xiao Han Chichen Lin School of Data Science and Intelligent Media Communication University of ChinaBeijing100024China School of Computer and Cyber Sciences Communication University of ChinaBeijing100024China Institute of Communication Studies Communication University of ChinaBeijing100024China State Key Laboratory of Media Convergence and Communication Communication University of ChinaBeijing100024China

The proliferation of robot accounts on social media platforms has posed a significant negative impact,necessitating robust measures to counter network anomalies and safeguard content *** robot detection has emerged as a pivotal yet intricate task,aimed at mitigating the dissemination of misleading *** graphbased approaches have attained remarkable performance in this realm,they grapple with a fundamental limitation:the homogeneity assumption in graph convolution allows social robots to stealthily evade detection by mingling with genuine human *** unravel this challenge and thwart the camouflage tactics,this work proposed an innovative social robot detection framework based on enhanced HOmogeneity and Random Forest(HORFBot).At the core of HORFBot lies a homogeneous graph enhancement strategy,intricately woven with edge-removal techniques,tometiculously dissect the graph intomultiple revealing ***,leveraging the power of contrastive learning,the proposed methodology meticulously trains multiple graph convolutional networks,each honed to discern nuances within these tailored *** culminating stage involves the fusion of these feature-rich base classifiers,harmoniously aggregating their insights to produce a comprehensive detection *** experiments on three social robot detection datasets have shown that this method effectively improves the accuracy of social robot detection and outperforms comparative methods.

关键词： Social robot detection graph neural networks random forest homophily heterophily

Experimental Study on Geometry Characteristics of Turbulent Premixed Flames for Natural Gas/Air Mixtures

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Journal of Thermal Science 2025年第1期34卷 268-282页

作者： ZHENG Weilin WANG Qijiao xiao Huahua CHEN xiaoxiao XIE fan ZENG Wen Liaoning Key Lab of Advanced Test Technology for Aerospace Propulsion System Shenyang Aerospace University State Key Laboratory of Fire Science University of science and Technology of China AVIC Shenyang Aircraft Design and Research Institute

In this study,focusing on the geometry characteristics of spherical expanding flame,the turbulent premixed flames of natural gas/air mixtures were investigated in a fan-stirred turbulent *** effects of initial temperature（T=300-400 K）,initial pressure（P=0.1-0.3 MPa）,turbulence intensity（u'=1.0-2.7 m/s）,oxygen volumetric percentage(φ（O2）=15%-21%) and carbon dioxide volumetric percentage(φ（CO2）=0-20%)were delved *** flame profile under the Cartesian coordinate system was derived from the schlieren images taken by the high-speed ***,from both macroscopic and microscopic perspectives,the influence of experimental conditions on the flame geometry characteristics was explored through flame front extraction,wavelet decomposition and network *** results demonstrate that for significant flame wrinkling,changes in species concentrations and turbulence intensity have more pronounced effects on the flame wrinkling *** wrinkling of the flame front maintains a certain degree of similarity,as evidenced by the locally concentrated distribution of the angles of the maximum fluctuation *** disturbance energy under large-scale（D6-D8） disturbances exhibits relatively high values with a similar trend,exerting a significant impact on the geometry characteristics of the flame *** peaks of correlation degree are scattered either with the decomposition scale or the development of flame radius,indicating no linear correlation between different detail ***,the probability distribution of node degrees in key wrinkled regions exhibits different trends with that of large-scale wrinkling and disturbance energy,especially with changes in initial *** occurs because the number of key wrinkles varies based on the perturbation's strength or the region's ***,an increase in the fluctuation frequency of the flame's local radius may not necessarily lead to an increase in the number of key folded regions.

关键词： fan-stirred turbulent combustor geometry characteristics large-scale wrinkling network topology wavelet decomposition

Defect Engineering:Can it Mitigate Strong Coulomb Effect of Mg^(2+)in Cathode Materials for Rechargeable Magnesium Batteries?

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Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing fan Ruimin Li Xin Zhang Wanyu zhao Zhenghui Pan xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

Molecular Basis for the Molting and Metamorphosis in the Cotton Bollworm,Helicoverpa Armigera

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Molecular Basis for the Molting and Metamorphosis in the Cot...

Experimental study of dual nano-network, high-temperature resistant aerogel material as an integration of thermal management functions

2008年全国生物化学与分子生物学学术大会

作者： xiao-fan zhao (School of Life Sciences,Shandong University,Jinan 250100,Shandong,China)

Holometabolous insects perform larval molting and metamorphosis in their life cycle,which was accompa- nied with dramatic changes inside and outside of their bodies by tissue histolysis and *** molecular mechanism of ...

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Journal of Energy Chemistry 2025年第1期100卷 157-170页

作者： Yueyue xiao Tianke Mao Zun zhao Yuelei Pan Heping Zhang Xudong Cheng State Key Laboratory of Fire Science University of Science and Technology of China

Thermal management system is highly desirable to guarantee the performance and thermal safety of lithium-ion batteries,but it reduces the energy density of battery modules and even is unable to provide highly effective ***,a thermal management function integrated material is presented based on high-temperature resistant aerogel and phase change material and is applied at both charge–discharge process and thermal runaway *** this sandwich structure Paraffin@SiC nanowire/Aerogel sheet （denoted as PA@SAS） system,SiC nanowires endow the middle aerogel sheet （SAS） a dual nano-network *** enhanced mechanical properties of SAS were studied by compressive tests and dynamic mechanical ***,the thermal conductivity of SAS at 600°C is only 0.042 W/（m K）.The surface phase change material layers facilitate temperature uniformity of batteries （surface temperature difference less than 1.82°C） through latent ***,a large-format battery module with four 58 Ah LiNi0.5Co0.2Mn0.3O2LIBs was ***@SAS successfully prevents thermal runaway propagation,yielding a temperature gap of 602°C through the 2 mm-thick cross ***@SAS also exhibits excellent performance in other safety issues such as temperature rise rate,flame heat flux,*** lightweight property and effective insulation performance achieves significant safety enhancement with mass and volume energy density reduction of only 0.79%and 5.4%,*** originality of the present research stems from the micro and macro structure design of the proposed thermal management material and the combination of intrinsic advantages of every *** work provides a reliable design of achieving the integration of thermal management functions into an aerogel composite and improves the thermal safety of lithium-ion batteries.

关键词： Thermal insulation

De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期68卷 174-180页

作者： fan-xiao Meng Xing-Yu Wang Ka Lu Ju-Song Yang Fu-Min Zhang Ai-Jun Ma Bao Du Yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

关键词： benzofuran atropisomers novel de novo synthetic strategy asymmetric formal [3 + 2] cycladdition Cu/SPDO complex DFT calculations

The influence of the Insight-HXMT/LE time response on timing analysis

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Research in Astronomy and Astrophysics 2021年第1期21卷 45-52页

作者： Deng-Ke Zhou Shi-Jie Zheng Li-Ming Song Yong Chen Cheng-Kui Li xiao-Bo Li Tian-Xiang Chen Wei-Wei Cui Wei Chen Da-Wei Han Wei Hu Jia Huo Rui-Can Ma Mao-Shun Li Tian-Ming Li Wei Li He-Xin Liu Bo Lu fang-Jun Lu Jin-Lu Qu You-Li Tuo Juan Wang Yu-Sa Wang Bai-Yang Wu Guang-Cheng xiao Yu-Peng Xu Yan-Ji Yang Shu Zhang Zi-Liang Zhang xiao-fan zhao Yu-Xuan Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China College of Physics Jilin UniversityChangchun 130012China

The LE is the low energy telescope that is carried on *** uses swept charge devices(SCDs)to detect soft X-ray ***’s time response is caused by the structure of the *** theoretical analysis and Monte Carlo simulations we discuss the influence of LE time response(LTR)on the timing analysis from three aspects:the power spectral density,the pulse profile and the time *** the LTR,the value of power spectral density monotonously decreases with the increasing *** power spectral density of a sinusoidal signal reduces by a half at frequency 536 *** corresponding frequency for quasi-periodic oscillation(QPO)signals is 458 *** root mean square(RMS)of QPOs holds a similar *** the LTR,the centroid frequency and full width at half maxima(FWHM)of QPOs signals do not *** LTR reduces the RMS of pulse profiles and shifts the pulse *** the time domain,the LTR only reduces the peak value of the cross-correlation function while it does not change the peak position;thus it will not affect the result of the time *** considering the time lag obtained from two instruments and one among them is LE,a 1.18 ms lag is expected caused by the *** time lag calculated in the frequency domain is the same as that in the time domain.

关键词： instrumentation:detectors methods:data analysis methods:analytical