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Incidence of Active Tuberculosis over a Two-year Follow-up Period among Individuals with different Chest Radiographic Findings who were Excluded from Active Tuberculosis at Initial Baseline Screening 认领 引用
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作者 Ping Zhu Yu Gao +5 位作者 Yan Qian Wei Wang Yuhan Wang Jianguo Liang Lei Gao Ying Du 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2026年第7期839-846,共8页
Tuberculosis(TB)is a chronic infectious disease caused by Mycobacterium tuberculosis(MTB)that severely endangers human health.Despite significant progress in global TB control,TB remains one of the top ten causes of d... Tuberculosis(TB)is a chronic infectious disease caused by Mycobacterium tuberculosis(MTB)that severely endangers human health.Despite significant progress in global TB control,TB remains one of the top ten causes of death worldwide.In its 2025 report,the World Health Organization(WHO)estimated 10.7 million new TB cases globally,with 1.23 million deaths.Early detection and treatment of TB are crucial for TB control.Community-based active case finding(ACF)is an active case detection strategy that is incorporated as a core component of Pillar 1 of the End TB Strategy and has demonstrated effectiveness in high-burden settings. 展开更多
关键词 mycobacterium tuberculosis mtb Tuberculosis Active Case Finding Global TB Control Mycobacterium Tuberculosis Chest Radiographic Findings chronic infectious disease Incidence
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Prediction of sea surface pCO2in the South China Sea using Spatiotemporal Convolutional LSTM model 认领 引用
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作者 Shuang LI Yu GAO +4 位作者 Jiannan GAO Yaqi ZHAO Peng HAO Jinbao SONG Chengcheng YU 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2026年第1期19-35,共17页
The prediction of sea surface partial pressure of carbon dioxide(pCO2)in the South China Sea is crucial for understanding the region’s contribution to the global carbon budget and its interactions with climate cha... The prediction of sea surface partial pressure of carbon dioxide(pCO2)in the South China Sea is crucial for understanding the region’s contribution to the global carbon budget and its interactions with climate change.We applied the Spatiotemporal Convolutional Long Short-Term Memory(STConvLSTM)model,integrating key environmental factors including sea surface temperature(SST),sea surface salinity(SSS),and chlorophyll a(Chl a),to predict and analyze sea surface pCO2in the South China Sea.The model demonstrated high accuracy in short-term predictions(1 month),with a mean absolute error(MAE)of 0.394,a root mean square error(RMSE)of 0.659,and a coefficient of determination(R2)of 0.998.For long-term predictions(12 months),the model maintained its predictive capability,with an MAE of 0.667,RMSE of 1.255,and R2of 0.994.Feature importance analysis revealed that sea surface pCO2and SST were the main drivers of the model’s predictions,whereas Chl a and SSS had relatively minor impacts.The model’s generalization ability was further validated in the northwest Pacific Ocean and tropical Pacific Ocean,where it successfully captured the spatiotemporal variation in pCO2with small prediction errors.The ST-ConvLSTM model provides an efficient and accurate tool for forecasting and analyzing sea surface pCO2in the South China Sea,offering new insights into global carbon cycling and climate change.This study demonstrates the potential of deep learning in marine science and provides a significant technical support for global changes and marine ecosystem research. 展开更多
关键词 sea surface carbon dioxide South China Sea Spatiotemporal Convolutional Long Short-Term Memory(ST-ConvLSTM) deep learning
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SSA*-PDWA:A Hierarchical Path Planning Framework with Enhanced A*Algorithm and Dynamic Window Approach for Mobile Robots 认领 引用
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作者 Lishu Qin Yu Gao Xinyuan Lu 《Computers, Materials & Continua》 SCIE EI 2026年第4期2069-2094,共26页
With the rapid development of intelligent navigation technology,efficient and safe path planning for mobile robots has become a core requirement.To address the challenges of complex dynamic environments,this paper pro... With the rapid development of intelligent navigation technology,efficient and safe path planning for mobile robots has become a core requirement.To address the challenges of complex dynamic environments,this paper proposes an intelligent path planning framework based on grid map modeling.First,an improved Safe and Smooth A*(SSA*)algorithm is employed for global path planning.By incorporating obstacle expansion and cornerpoint optimization,the proposed SSA*enhances the safety and smoothness of the planned path.Then,a Partitioned Dynamic Window Approach(PDWA)is integrated for local planning,which is triggered when dynamic or sudden static obstacles appear,enabling real-time obstacle avoidance and path adjustment.A unified objective function is constructed,considering path length,safety,and smoothness comprehensively.Multiple simulation experiments are conducted on typical port grid maps.The results demonstrate that the improved SSA*significantly reduces the number of expanded nodes and computation time in static environmentswhile generating smoother and safer paths.Meanwhile,the PDWA exhibits strong real-time performance and robustness in dynamic scenarios,achieving shorter paths and lower planning times compared to other graph search algorithms.The proposedmethodmaintains stable performance across maps of different scales and various port scenarios,verifying its practicality and potential for wider application. 展开更多
关键词 Dynamic window approach improved A*algorithm dynamic path planning trajectory optimization
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Helium dynamic accumulation process in the Hetianhe gas field,Tarim Basin,northwest China 认领 引用
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作者 Jia-Hao Lv Quan-You Liu +3 位作者 Peng-Peng Li Jia-Run Liu Yu Gao Zheng Zhou 《Petroleum Science》 SCIE EI CAS CSCD 2026年第2期596-607,共12页
Helium(He)is considered an indispensable rare resource due to its critical applications in high-tech fields such as low-temperature superconductivity,magnetic resonance imaging,and aerospace.However,the sources of hel... Helium(He)is considered an indispensable rare resource due to its critical applications in high-tech fields such as low-temperature superconductivity,magnetic resonance imaging,and aerospace.However,the sources of helium and its accumulation processes in hydrocarbon basins remain unclear.The Hetianhe gas field,as China's first supergiant He-rich gas field,provides a natural laboratory for studying the mechanisms of helium enrichment.By analyzing the primary gas components and noble gas data from natural gas wells in the Hetianhe gas field,and comparing these with geological data from known He-rich gas fields worldwide,a detailed anatomy of the Hetianhe helium-rich gas field is conducted from three aspects:generation,migration,and accumulation.The Hetianhe gas field is not only uniformly rich in helium but also shows promising exploration potential.Helium tends to accumulate in structural highs within the field.Quantifying the helium isotope ratios(R/Ra)reveals that the helium in the Hetianhe gas field is of typical crustal origin.From a"source-reservoir dual control"perspective,it is calculated that 62%of the helium is sourced from the basement helium source rocks,while 38%comes from sedimentary helium source rocks.The study indicates that the Paleoproterozoic granite basement provides a sufficient helium source,with the fault systems serving as effective migration pathways for helium.The concentration of4He and20Ne in natural gas is positively correlated,which reflects the close relationship between He migration and groundwater.In addition,N2and He in natural gas in the Tarim Basin show a good positive correlation,which further indicates that4He dissolves into the groundwater system before degassing into a gas reservoir and that the variations in the4He concentration in the gas phase are caused by the difference of natural gas lateral migration and charging intensity.Notably,a comparison with the reservoir characteristics of globally recognized He-rich fields reveals that"shallow depth,low pressure,and high structural uplift"are key geological factors for helium accumulation. 展开更多
关键词 Noble gas Helium source Natural gas Helium accumulation process Hetianhe gas field
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Optical resonant cavities carving pathways in tunable wavelength sensitive visible-NIR organic photodetectors 认领 引用
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作者 Zilong Ye Xubiao Li +9 位作者 Huan Li Zhuhua Xu Kanghui Ke Yu Gao Xiao Tang Franklin S.Yang Xiaomin Xu Xiaohang Li Feiyu Kang Guodan Wei 《Nano Materials Science》 EI CAS CSCD 2026年第3期651-658,共8页
Enhancing the photodetection capabilities of organic photodetectors(OPDs)is crucial for advancing applications in medical monitoring,optical communications,image sensing,and robotics,where a strong,focused peak respon... Enhancing the photodetection capabilities of organic photodetectors(OPDs)is crucial for advancing applications in medical monitoring,optical communications,image sensing,and robotics,where a strong,focused peak response at a specific designed wavelength is essential for improving sensitivity,wavelength selectivity,and resolution in imaging systems.By controlled integration of ZnO layers within PBDBT:BTP-4F-based OPDs to form a Fabry-Perot optical cavity,we developed a cost-effective approach to fabricating highly sensitive OPDs by utilizing PBDBT:BTP-4F organic bulk heterojunctions,and extended its detection wavelengths into the nearinfrared(NIR)range.Our design integrates a single silver(Ag)layer that significantly enhances peak detection at a wavelength of 830 nm,resulting in a remarkably narrow full-width at half maximum(FWHM)wavelength of 30 nm and yielding a photoresponse ten times greater than that of non-resonant devices.Furthermore,by varying the thickness of the ZnO layer from 77 nm to 620 nm,we achieve high spectral tunability,allowing fine adjustments of the resonant peak across a spectrum ranging from ultraviolet(UV)and visible to NIR wavelengths.This sensitive photodetector is also well-suited for applications in photoplethysmography(PPG),effectively detecting pulse signals in the NIR spectrum which has significant potential in medical diagnostics.This work advances the integration of cost-effective,wavelength-selective spectroscopic visible-NIR OPDs,paving the way for the next generation of sensitive photodetectors. 展开更多
关键词 Organic photodetectors Near-infrared Cavity Tunability PPG signals
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Self-assembled polyoxometalate-phenolic nanodrugs integrated with dissolving microneedles for hypertrophic scar combination therapy 认领 引用
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作者 Manyi Du Ruofei Xu +6 位作者 Xianbin Sun Haixin Long Jing Yu Yilin Zheng Haijun Chen Yansheng Lin Yu Gao 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2026年第2期318-334,I0007-I0027,共17页
The clinical management of hypertrophic scars(HSs)remains challenging due to their complex etiology and heterogeneous morphology,underscoring the need for multitarget treatment strategies.In this study,we developed a ... The clinical management of hypertrophic scars(HSs)remains challenging due to their complex etiology and heterogeneous morphology,underscoring the need for multitarget treatment strategies.In this study,we developed a nanocomposite system constructed through the metal-phenolic network-mediated self-assembly of molybdenum polyoxometalate({Mo 154})and epigallocatechin gallate(EGCG),followed by chitosan encapsulation,to generate chitosan-encapsulated{Mo 154}/EGCG(CME)nanoparticles.These nanoparticles were integrated into dissolvable microneedles(CME@MN)to enable transdermal administration.Under near-infrared laser irradiation,CME exhibited a three-pronged therapeutic effect:suppression of collagen overproduction and excessive extracellular matrix(ECM)deposition in human keloid fibroblasts,regulation of proliferation and migration in human umbilical vein endothelial cells,and reprogramming of macrophages toward a proinflammatory M1 phenotype.In vivo,CME@MN patches preferentially accumulated within scar tissue,where they normalized ECM organization,improved collagen fiber rearrangement,and attenuated fibroblast activity through photothermal-enhanced mechanisms while maintaining an excellent safety profile.The CME@MN system represents a potentially transformative approach to HS management by offering a unified platform that simultaneously targets the fibrotic,angiogenic,and inflammatory components of scar pathogenesis. 展开更多
关键词 Hypertrophic scar therapy Anti-fibrosis Microneedle Metal-phenolic network Polyoxometalate
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Cu-Mo synergistic doping of metal-organic framework double-shelled hollow nanospheres:Surface reconstruction activates adsorbate evolution and lattice oxygen mechanisms 认领 引用
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作者 Yu Tang Yang Chen +4 位作者 Kerun Chen Edmund Qi Xiaoyang Liu Haiyan Lu Yu Gao 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2026年第2期159-171,共13页
In order to attain high catalytic activity and long-term stability in the oxygen evolution reaction(OER),it is essential to design catalysts with hollow structures that integrate both the adsorbate evolution mechanism... In order to attain high catalytic activity and long-term stability in the oxygen evolution reaction(OER),it is essential to design catalysts with hollow structures that integrate both the adsorbate evolution mechanism(AEM)and the lattice oxygen mechanism(LOM).Based on the above issues,we developed a novel templating method and,for the first time,synthesized double-shelled hollow nanospheres of ZIF-67.Utilizing the inherent hollow structure and chemical activity of ZIF-67,and through Cu-Mo co-doping,we prepared a CuCo2S4/MoS2 OER catalyst with dual mechanisms.The Jahn-Teller effect of copper activates lattice oxygen,facilitating LOM in OER.The cooperative interaction between copper and molybdenum atoms induces surface reconstruction in the catalyst,accelerates the deprotonation step in LOM,and aids in the formation of*OOH in AEM,thus reducing energy barriers and optimizing the adsorption of reaction intermediates.The addition of molybdenum further boosts catalytic performance by enhancing both mechanisms,owing to the spatial disparity between Cu and Mo atoms.Due to the compatibility of the dual mechanisms,the catalyst demonstrates outstanding electrochemical performance in alkaline media(320 mV at 100 mA cm-2)and maintains a stable catalytic current in a commercial water-splitting device(500 mA cm-2 for 300 h).This study presents an innovative strategy for designing oxygen evolution reaction catalysts that integrate both AEM and LOM mechanisms.Considering the widespread applications of ZIF-67 in electrocatalysis and electrochemical energy storage,CuCo-G@ZIF-67 not only serves as a versatile precursor for the synthesis of various catalysts but also paves the way for the development of novel transition metal catalysts and multi-shell energy storage materials. 展开更多
关键词 Adsorbate evolution mechanism Lattice oxygen mechanism Oxygen evolution reaction CuCo2S4/MoS2 Double-shelled hollow nanospheres
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Construction of triple interfaces to tailor electronic structure and local microenvironment of ruthenium species in Rusp/TiO2-x-CeO2-xfor enhanced hydrogen energy conversion 认领 引用
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作者 YuanYuan Cong Yu Gao +5 位作者 Xiaobo Zheng Huibin Lai Qiuping Zhao Chunlei Li Yilong Zhang Mengling Liu 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第2期688-697,共10页
The rational design of heterostructures to simultaneously optimize local environments and electronic configurations in electrocatalysts represents a promising strategy for enhancing hydrogen oxidation(HOR)and evolutio... The rational design of heterostructures to simultaneously optimize local environments and electronic configurations in electrocatalysts represents a promising strategy for enhancing hydrogen oxidation(HOR)and evolution(HER)reactions,crucial for advancing next-generation anion exchange membrane fuel cells and water electrolyzers.Herein,we report a novel Rusp/TiO2-x-CeO2-xxelectrocatalyst with a triple-interface structure,where Ru species are anchored on the surface of both TiO2-xand CeO2-x.This engineered Rusp/TiO2-x-CeO2-xx exhibits exceptional hydrogen energy conversion in the alkaline solution,significantly outperforming Pt/C.Specifically,the HOR mass activity reaches up to 4978 A/gRu,which is 16 times that of Pt/C(310 A/gPt).Meanwhile,the HER overpotential at 10 mA/cm2is only 21 mV,37 mV lower than that of Pt/C.More importantly,the Rusp/TiO2-x-CeO2-xx demonstrates excellent anti-oxidation ability,maintaining activity even at potentials as high as 1.2 V vs.RHE.Through comprehensive characterization combining electrochemical results,density functional theory(DFT)calculations,in situ Raman spectroscopy,and in situ attenuated total reflection surface-enhanced infrared absorption spectroscopy(ATR-SEIRAS),we elucidate the dual synergistic effects governing the superior performance:(i)the electron-rich Ru centers induced by TiO2-x-CeO2-xx hybridization effectively weaken adsorption energetics of key intermediates(Had,OHad,COad);and(ii)the unique metal-support interaction creates a local acid environment,which promotes the transport of intermediate species. 展开更多
关键词 Rare earth element Enriched electron Acid-like microenvironment Anti-passivated ability Hydrogen energy conversion
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Centimeter-Scale Reconfiguration Piezo Robots with Built-in-Ceramic Actuation Unit 认领 引用
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作者 Yu Gao Jing Li +3 位作者 Shijing Zhang Jie Deng Weishan Chen Yingxiang Liu 《Engineering》 SCIE EI CSCD 2026年第3期181-192,共12页
Reconfigurable robots have been widely used in the fields of environmental exploration and multi-task applications,benefitting from their high adaptability and multi-functionality.The module size and reconfiguration s... Reconfigurable robots have been widely used in the fields of environmental exploration and multi-task applications,benefitting from their high adaptability and multi-functionality.The module size and reconfiguration strategy are two key factors determining the locomotion characteristics and application scenarios.Traditional reconfigurable robots face challenges in operating in narrow spaces due to the large individual modules that use complex drive and transmission mechanisms;the incompetent reconfiguration strategy limits the diversity of robot configurations and functions.Here we propose a novel highintegration module using built-in-ceramic actuation unit and construct a series of centimeter-scale piezo robots with a new reconfiguration strategy.The actuation unit achieves ultra-high locomotion speed(90.3 body length per second)and high carrying capability(31.6 times self-weight).The highintegration module,including control,communication,and power-supply units,achieves a movement speed of 590 mm per second.Multi-position magnetic connection is designed to achieve the reconfiguration among the modules,and a method is proposed to help select suitable configuration for specific requirements.Such strategy enables the centimeter-scale piezo robot to cope with various flat work scenarios and achieve wireless image capture,exhibiting great potential for different applications.This work provides inspiration for structural design and functional realization in the field of miniature reconfigurable robots. 展开更多
关键词 Reconfigurable robots Centimeter-scale robots Piezoelectric actuation
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Biomimetic adhesives in biomedical engineering:from micro/nano structure design to applications 认领 引用
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作者 Yu Gao Qian Cheng +2 位作者 Zhi-Jiang Chen Feodor M.Borodich Xiao-Qing Jin 《Biomedical Engineering Communications》 CAS 2026年第3期4-30,共27页
Natural evolution has endowed biological surfaces with unique microstructural features,enabling them to achieve complex functions such as grasping,climbing,and self-cleaning through precise regulation of adhesion.Insp... Natural evolution has endowed biological surfaces with unique microstructural features,enabling them to achieve complex functions such as grasping,climbing,and self-cleaning through precise regulation of adhesion.Inspired by this,bioinspired adhesive microstructures have shown tremendous application potential in the rapidly advancing and highly innovative biomedical field.This paper systematically reviews the adhesion systems of biological surfaces like those of geckos and tree frogs,and conducts an in-depth analysis of the adhesion mechanisms underlying various microstructures and their corresponding bioinspired adhesives from the critical perspective of structural characteristics.It reviews different types of interfacial adhesion models,with special emphasis on the suitability of the Cantor-Borodich profile model for accurately describing multiscale hierarchical adhesive structures in diverse and complex biological systems.The paper focuses on elaborating the significant contributions of bioinspired adhesives in biomedical engineering,particularly their practical and impactful applications in wearable medical devices such as stable adhesion in dynamic physiological environments,surgical instruments such as low-damage soft tissue gripping,and drug delivery systems such as enhanced transdermal delivery efficiency.Additionally,it outlines current development prospects and key challenges such as long-term biocompatibility,environmental adaptability,and structure-function synergistic optimization,providing new ideas and valuable references for further research and application of bioinspired adhesive microstructures in biomedical engineering. 展开更多
关键词 bioinspired adhesion biomimetic microstructures bioinspired adhesives biomedical applications
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多因子互作下黄精品质形成机制的研究进展 认领 引用
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作者 陈芬 余高 +2 位作者 王海 杨忠华 吴昌梅 《中草药》 CAS CSCD 北大核心 2026年第11期4494-4508,共15页
黄精Polygonati Rhizoma的品质核心在于内在药效品质,以多糖、皂苷等为主要表征。然而,这些活性成分的含量与组成易受种质、产地生态环境及加工方式等影响,导致商品药材质量波动,已成为制约产业标准化发展的关键瓶颈。传统研究多聚焦于... 黄精Polygonati Rhizoma的品质核心在于内在药效品质,以多糖、皂苷等为主要表征。然而,这些活性成分的含量与组成易受种质、产地生态环境及加工方式等影响,导致商品药材质量波动,已成为制约产业标准化发展的关键瓶颈。传统研究多聚焦于单一生态或农艺因子的表观影响,缺乏对品质形成复杂系统的整体解析。聚焦内在药效品质,构建“遗传-环境-管理”多因子互作的系统性理论框架,系统阐明黄精品质形成的多维调控网络。全文从内在遗传基础(种质资源与代谢调控网络)、外在环境调控(气候因子与根际微生态互作)以及人为生产干预(精准栽培与采后加工)3个维度,系统梳理各因子及其互作对黄精品质性状的协同调控机制。在此基础上,提出未来应聚焦多组学整合的系统生物学解析、全产业链智能化精准管理、加工工艺现代化与高值化转型,以及覆盖全程的质量标准体系构建。为深入理解黄精道地性品质形成机制提供了整合性理论框架,也为指导其标准化生产与产业高质量发展提供理论依据。 展开更多
关键词 黄精 品质形成 多因子互作 根际微生态 遗传调控 分子机制
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梵净山黄精属6种植物的遗传多样性分析 认领 引用
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作者 莫忠妹 杨传东 +2 位作者 余高 陶光耀 钱玺丞 《分子植物育种》 CAS 北大核心 2026年第13期4483-4490,共8页
该研究以梵净山分布的黄精属药用植物为研究对象,利用SSR荧光标记毛细管电泳技术分析探讨黄精属6种植物的遗传差异性和亲缘关系,为进一步优化黄精种质资源收集保存及合理利用提供科学依据。基于8对荧光引物鉴定样品基因型,利用POPGENE 1... 该研究以梵净山分布的黄精属药用植物为研究对象,利用SSR荧光标记毛细管电泳技术分析探讨黄精属6种植物的遗传差异性和亲缘关系,为进一步优化黄精种质资源收集保存及合理利用提供科学依据。基于8对荧光引物鉴定样品基因型,利用POPGENE 1.32和GenAlEx软件对黄精属种质进行遗传多样性参数估算、聚类分析和主成分分析。结果显示:8对SSR荧光引物共检测出108个等位基因,平均每对扩增出13.5个等位基因,黄精种群平均等位基因数(Na)为2.601,平均有效等位基因数(Ne)为2.414,平均观测杂合度(Ho)为0.158,平均期望杂合度(He)为0.842,平均多态位点比例(PPB)为69.74%,Nei's遗传多样性指数(H)平均值为0.565,Shannon's信息指数(I)平均值为0.881,说明黄精种质资源遗传多样性较丰富,主成分分析显示黄精主要分为4个组群,其中第Ⅱ组群主要为种间交叉现象,聚类图显示,武陵黄精与多花黄精、卷叶黄精的亲缘关系较近,该研究采用SSR荧光标记可以有效地反映出黄精种质资源间的遗传多样性,为野生黄精属植物合理引种、驯化、保护和利用提供科学依据。 展开更多
关键词 黄精属 遗传多样性 SSR 种质资源
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淫羊藿种植模式与药材品质形成的关系研究进展 认领 引用
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作者 冯顺梅 余高 +1 位作者 卢心 陈芬 《农业与技术》 2026年第1期25-28,共4页
淫羊藿是我国重要的大宗中药材,面对野生资源枯竭与市场需求增长矛盾,发展人工种植势在必行。本文系统综述了仿野生生态种植与集约化种植两种模式对药材产量、品质及次生代谢产物积累的影响,重点分析了种质资源、生态因子与栽培技术在... 淫羊藿是我国重要的大宗中药材,面对野生资源枯竭与市场需求增长矛盾,发展人工种植势在必行。本文系统综述了仿野生生态种植与集约化种植两种模式对药材产量、品质及次生代谢产物积累的影响,重点分析了种质资源、生态因子与栽培技术在不同模式中的作用机制,并从生态环境、药材道地性及经济效益等维度比较了二者差异。未来淫羊藿产业应走向“生态集约化”发展道路,融合仿野生模式的生态品质优势与集约化模式的效率规模优势,通过种质创新、土壤微生态调控及光-肥-水协同管理等关键技术,实现质量与产量的协同提升,为产业绿色可持续发展提供理论支撑与实践路径。 展开更多
关键词 淫羊藿 种植模式 品质形成 次生代谢
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熔融纺高强度聚酰胺纤维及其凝聚态结构调控研究进展 认领 引用 被引量：2
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作者 梁程耀 黄威蕾 +6 位作者 高宇 俞森龙 相恒学 朱丽萍 胡泽旭 成艳华 朱美芳 《高分子学报》 SCIE CAS CSCD 北大核心 2026年第1期79-94,共16页
聚酰胺纤维是世界上最早实现工业化生产的合成纤维,也是当今产量第二大的合成纤维,因其具有拉伸断裂强度高、断裂伸长率大、回弹性优等特性,而被广泛应用到纺织服装、工业丝、家纺和特殊防护等领域.随着工业技术的发展革新,常规的聚酰... 聚酰胺纤维是世界上最早实现工业化生产的合成纤维,也是当今产量第二大的合成纤维,因其具有拉伸断裂强度高、断裂伸长率大、回弹性优等特性,而被广泛应用到纺织服装、工业丝、家纺和特殊防护等领域.随着工业技术的发展革新,常规的聚酰胺纤维由于断裂强度较低已难以满足某些特殊应用场景的性能需求.聚酰胺相邻分子链间的酰胺键间极易形成氢键,致使分子链间的相互作用力较强,难以通过高倍牵伸获得高取向结构从而限制了其强度的提高.为突破现有纺丝体系下聚酰胺纤维力学性能的瓶颈,需要深入了解工艺-结构-性能三元关系,精准调控聚酰胺纤维的多层次结构,进而实现聚酰胺纤维的高强化.本文就纺丝阶段的三个重要阶段(熔融挤出、牵伸和热定型)讨论了纤维在成形过程中的多尺度结构演变以及纺丝参数对其结构-性能的调控机制,有望为高强聚酰胺纤维工艺设计提供理论指导. 展开更多
关键词 聚酰胺纤维 凝聚态结构 高性能 熔融纺丝
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MSCM:A geomagnetic model derived from Swarm,CSES,and MSS-1 satellite data and the evolution of the South Atlantic Anomaly 认领 引用 被引量：2
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作者 Yu Gao ZhengTao Wang +2 位作者 Philip W.Livermore Hannah F.Rogers Cong Liu 《Earth and Planetary Physics》 EI CSCD 2025年第3期564-576,共13页
Measurements from geomagnetic satellites continue to underpin advances in geomagnetic field models that describe Earth's internally generated magnetic field.Here,we present a new field model,MSCM,that integrates v... Measurements from geomagnetic satellites continue to underpin advances in geomagnetic field models that describe Earth's internally generated magnetic field.Here,we present a new field model,MSCM,that integrates vector and scalar data from the Swarm,China Seismo-Electromagnetic Satellite(CSES),and Macao Science Satellite-1(MSS-1)missions.The model spans from 2014.0 to 2024.5,incorporating the core,lithospheric,and magnetospheric fields,and it shows characteristics similar to other published models based on different data.For the first time,we demonstrate that it is possible to successfully construct a geomagnetic field model that incorporates CSES vector data,albeit one in which the radial and azimuthal CSES vector components are Huber downweighted.We further show that data from the MSS-1 can be integrated within an explicitly smoothed,fully time-dependent model description.Using the MSCM,we identify new behavior of the South Atlantic Anomaly,the broad region of low magnetic field intensity over the southern Atlantic.This prominent feature appears split into a western part and an eastern part,each with its own intensity minimum.Since 2015,the principal western minimum has undergone only modest intensity decreases of 290 nT and westward motion of 20 km per year,whereas the recently formed eastern minimum has shown a 2–3 times greater intensity drop of 730 nT with no apparent east-west motion. 展开更多
关键词 geomagnetism Swarm CSES MSS-1 geomagnetic field model
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Acupuncture for postoperative ileus:Advancement and underlying mechanisms 认领 引用 被引量：2
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作者 Yang Ye Xi-Yan Xin +6 位作者 Ze-Jun Huo Yu-Tian Zhu Rui-Wen Fan Hao-Lin Zhang Yu Gao Hong-Bo Shen Dong Li 《World Journal of Gastrointestinal Surgery》 SCIE 2025年第2期11-15,共5页
Postoperative ileus(POI)remains a prevalent and significant challenge following abdominal surgeries,precipitating patient distress,prolonged hospital stays,and escalated medical expenditures.Conventionally addressed v... Postoperative ileus(POI)remains a prevalent and significant challenge following abdominal surgeries,precipitating patient distress,prolonged hospital stays,and escalated medical expenditures.Conventionally addressed via pharmacological interventions,POI is increasingly being explored through adjunctive therapeutic strategies,with acupuncture gaining recognition as a promising option.Acupuncture has demonstrated encouraging potential in promoting gastrointestinal motility in patients with POI.Moreover,recent research has shed light on the therapeutic mechanisms underlying its efficacy.This article aims to present a comprehensive overview of acupuncture as a treatment for POI,highlighting advancements in clinical research and recent elucidations of its mechanistic underpinnings.It aspires to contribute a pivotal reference point for scholars and enthusiasts keen on garnering a deeper understanding of acupuncture’s role in managing POI. 展开更多
关键词 Acupuncture Gastrointestinal motility Mechanism Patients Postoperative ileus
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Unveiling the role of MoS2 hollow nanospheres on lignite-based carbon for enhanced sodium-ion battery performance 认领 引用 被引量：1
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作者 Xiao-Hui Ma Jia-Hao Zhao +7 位作者 Rong-Ji Jiao Muhammad Ahmad Mudassir Xi-Min Xu Yu Gao Yun-Ying Liu Wen-Xiu He Jin-Long Cui Xiao-Yu Zhao 《Rare Metals》 SCIE EI CAS CSCD 2025年第7期4801-4814,共14页
The two-dimensional(2D)layered material molybdenum disulfide(MoS2)exhibits a special Mo-S-Mo sandwich structure with a rather large spacing,making it a promising candidate as an anode material for sodium storage ap... The two-dimensional(2D)layered material molybdenum disulfide(MoS2)exhibits a special Mo-S-Mo sandwich structure with a rather large spacing,making it a promising candidate as an anode material for sodium storage applications.Unfortunately,the practical applications are limited by their intrinsically low electrical conductivity,significant volume alteration and severe particle agglomeration.In this study,we designed a new two-step solvothermal strategy to synthesize ultrathin nanosheetassembled MoS2hollow nanospheres strongly located onlignite-based carbon(MoS2/C)without any template.The ultrathin nanosheets assembled into hollow structures mitigated the volume changes of MoS2during the(dis)-charge cycles,facilitated Na+diffusion,and reduced the migration energy barrier within MoS2.Lignite-based C enhances the electrical conductivity of MoS2,prevents its aggregation,and alleviates mechanical stress during repeated(dis)charging.The resultant hollow spherical MoS2/C composite exhibits outstanding cyclability and rate performance when used as an anode in sodium-ion batteries,as it delivers a high specific capacity of 515.8 mAh g-1after 1000 cycles at 1.0 A g-1,with a 94.34%capacity retention rate.Even at a high current density of 20 Ag-1,a capacity of 431 mAh g-1can still be obtained after 2000cycles.In particular,the initial Coulombic efficiency of the MoS2anode is markedly enhanced by the incorporation of lignite-based C. 展开更多
关键词 MoS2hollow nanospheres Lignite-based carbon Anode material Sodium-ion batteries
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A deep learning lightweight model for real-time captive macaque facial recognition based on an improved YOLOX model 认领 引用 被引量：1
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作者 Jia-Jin Zhang Yu Gao +1 位作者 Bao-Lin Zhang Dong-Dong Wu 《Zoological Research》 SCIE CAS CSCD 2025年第2期339-354,共16页
Automated behavior monitoring of macaques offers transformative potential for advancing biomedical research and animal welfare.However,reliably identifying individual macaques in group environments remains a significa... Automated behavior monitoring of macaques offers transformative potential for advancing biomedical research and animal welfare.However,reliably identifying individual macaques in group environments remains a significant challenge.This study introduces ACE-YOLOX,a lightweight facial recognition model tailored for captive macaques.ACE-YOLOX incorporates Efficient Channel Attention(ECA),Complete Intersection over Union loss(CIoU),and Adaptive Spatial Feature Fusion(ASFF)into the YOLOX framework,enhancing prediction accuracy while reducing computational complexity.These integrated approaches enable effective multiscale feature extraction.Using a dataset comprising 179400 labeled facial images from 1196 macaques,ACE-YOLOX surpassed the performance of classical object detection models,demonstrating superior accuracy and real-time processing capabilities.An Android application was also developed to deploy ACE-YOLOX on smartphones,enabling on-device,real-time macaque recognition.Our experimental results highlight the potential of ACE-YOLOX as a non-invasive identification tool,offering an important foundation for future studies in macaque facial expression recognition,cognitive psychology,and social behavior. 展开更多
关键词 YOLOX Macaque Facial recognition Identity recognition Animal welfare
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Cassava intercropping Leguminosae increases quality of cassava by increasing soil phosphorus availability via altering soil microbial community composition 认领 引用 被引量：1
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作者 Yijie Zhang Yating Feng +4 位作者 Honggang Wang Yu Gao Rui Wang Rui Zhang Yinhua Chen 《Tropical Plants》 CSCD 2025年第1期60-72,共13页
Agroecological intercropping practices demonstrate dual benefits in pest suppression and soil quality enhancement through diversified planting strategies.Despite these advantages,the current understanding of microbiom... Agroecological intercropping practices demonstrate dual benefits in pest suppression and soil quality enhancement through diversified planting strategies.Despite these advantages,the current understanding of microbiome dynamics in combined root-legume cultivation remains fragmented,particularly the variations in bacterial populations and structural diversity observed when cassava is introduced into legume-intercropped agricultural models.A field experiment was carried out with four treatments:cassava-peanut(Arachis hypogea),cassava-hyacinth bean(Macrotyloma uniflorum'Yazhou'),cassava-Stylosanthes intercropping,and cassava monoculture to characterize longitudinal variations in edaphic nutrient cycling and microbiota configuration parameters(including population density,species richness,and consortia architecture)across distinct plant microhabitats—specifically root-soil interfaces and underground storage organs.Results showed that different intercropping modes significantly increased the starch content by 1.85%,9.17%,and 22.3%,and zinc content by 38.8%,36.2%,and 58.7%respectively.Intercropping with various legumes improved the content of available phosphorus(AP)in cassava rhizosphere soil by 167.9%,80.8%,and 16.5%,respectively.It also improved the composition of the microbial community in the cassava rhizosphere and enhanced the growth and abundance of fungi,including Gibberella,Acrocalyma,and Basidiomycetes,which increased the availability of phosphorus in the soil.These results indicated that intercropping of legumes could improve cassava quality,rhizosphere microbial diversity,and soil nutrient utilization. 展开更多
关键词 leguminosae bacterial populations structural diversity agroecological intercropping practices cassava field experiment pest suppression microbiome dynamics soil quality enhancement
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Enhancing offshore oil and gas platform sustainability through wind-powered hydrogen production 认领 引用 被引量：1
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作者 Jiayi Wang Shaohua Nie +6 位作者 Yu Gao Peng Zheng Zhihao Su Jianqiang Sun Dangfei Wang Shouwei Zhou Jiwei Wu 《Natural Gas Industry B》 2025年第6期734-749,共16页
Decarbonizing offshore oil and gas platforms has become a critical challenge in the energy transition.In this article,we propose the following two models for decarbonizing offshore oil and gas platforms to facilitate ... Decarbonizing offshore oil and gas platforms has become a critical challenge in the energy transition.In this article,we propose the following two models for decarbonizing offshore oil and gas platforms to facilitate highly challenging energy transitions:(1)repurposing decommissioned platforms as offshore wind-hydrogen hubs and(2)integrating offshore wind power and hydrogen production systems into operational platforms.This study is conducted to systematically assess the feasibility of the proposed models and further examine their technological challenges,systemic risks,and possible mitigation pathways.The results showed that wind turbines,reverse osmosis desalination,and alkaline water electrolysis have high levels of maturity,whereas subsea hydrogen pipelines and liquid/compressed hydrogen carriers remain comparatively immature.Both models can significantly lower costs,strengthen energy resilience,and reduce emissions.However,large-scale deployment is generally constrained by high capital costs,integration complexity,and fragmented regulatory frameworks.The findings highlight that reusing offshore infrastructure to integrate offshore wind power and hydrogen production systems offers cost and environmental advantages over conventional decommissioning,while integrated supply systems can ensure long-term stability through multi-energy complementarity.The study provides strategic insights for advancing low-carbon transformation and guiding the sustainable and resilient development of offshore energy systems. 展开更多
关键词 Offshore oil and gas platforms Low-carbon transition Decommissioning reuse Offshore wind power Hydrogen production systems Multi-energy complementarity
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