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Bioinspired Surfaces Derived from Acoustic Waves for On-Demand Droplet Manipulations

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Research 2024年第3期2023卷 613-620页

作者： Zhuhao Wu lingyu Sun Hanxu Chen Yuanjin Zhao Department of Rheumatology and Immunology Nanjing Drum Tower HospitalSchool of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Oujiang Laboratory(Zhejiang Lab for Regenerative Medicine Vision and Brain Health)Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhouZhejiang 325001China Chemistry and Biomedicine Innovation Center Nanjing UniversityNanjing 210023China.

The controllable manipulation and transfer of droplets are fundamental in a wide range of chemical reactions and even life processes. Herein, we present a novel, universal, and straightforward acoustic approach to fabricating biomimetic surfaces for on-demand droplet manipulations like many natural creatures. Based on the capillary waves induced by surface acoustic waves, various polymer films could be deformed into pre-designed structures, such as parallel grooves and grid-like patterns. These structured and functionalized surfaces exhibit impressive ability in droplet transportation and water collection, respectively. Besides these static surfaces, the tunability of acoustics could also endow polymer surfaces with dynamic controllability for droplet manipulations, including programming wettability, mitigating droplet evaporation, and accelerating chemical reactions. Our approach is capable of achieving universal surface manufacturing and droplet manipulation simultaneously, which simplifies the fabrication process and eliminates the need for additional chemical modifications. Thus, we believe that our acoustic-derived surfaces and technologies could provide a unique perspective for various applications, including microreactor integration, biochemical reaction control, tissue engineering, and so on.

关键词： straight eliminate acoustics

Selective metasomatism of ultramafic cumulates within Archean supracrustal sequences

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Geoscience Frontiers 2024年第5期15卷 283-299页

作者： lingyu Zhang Sampriti Basak David Zakharov Kristoffer Szilas Department of Geosciences and Natural Resource Management University of CopenhagenØster Voldgade 101350 CopenhagenDenmark Geological and Environmental Sciences Western Michigan UniversityKalamazooMI 49008USA

The Neoarchean StorøSupracrustal Belt in SW Greenland comprises a sequence of mature quartzite,metapelite,amphibolite,and ultramafic rocks that underwent amphibolite facies metamorphism during the amalgamation of the Mesoarchean Akia Terrane and the Eoarchean Færingehavn *** this belt,tourmaline is found in a transition zone between ultramafic and metapelitic rocks,but also occurs as orbicules within the ultramafic *** tourmaline orbicules hosted by ultramafic rocks are reported for the first time in the North Atlantic craton,thus indicating a unique formation *** conducted a comprehensive examination of the petrology,whole-rock and mineral chemistry,and oxygen isotope compositions from borehole samples in the StorøSupracrustal Belt,to elucidate the metasomatic events associated with the formation of the orbicular *** Storøultramafic rocks have high MgO,Cr,and Ni contents,with low abundances of REE and HFSE,and preserve a typical cumulate *** features are similar to those of ultramafic cumulates found in other Archean supracrustal belts,suggesting a cumulate origin for the Storøultramafic ***,the morphology and composition of the tourmaline orbicules within these cumulates indicate that they originated from melts with high boron and high water concentrations that infiltrated the ultramafic *** main factor influencing the morphology of the tourmaline orbicules is the silicification of the ultramafic rocks,driven by their lower chemical potential of SiO_(2)compared to the surrounding *** silicification process,in combination with compositional variations of cumulates during fractional crystallization,has contributed to the geochemical diversity observed in Archean ultramafic ***,it is crucial to understand the effects of such selective metasomatism on Archean ultramafic rocks,as this will facilitate the extraction of original information preserved in the early rock record.

关键词： Archean Ultramafic rocks Tourmaline Metasomatism Storø Greenland

Sodium intake:a double-edged sword wielded by the brain

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Science China(Life Sciences) 2024年第7期67卷 1545-1547页

作者： lingyu Xu Xiaolong Ma Yi Wang Zhong Chen Key Laboratory of Neuropharmacology and Pharmaceutical Sciences Zheiiang Chinese Medical UniversityHangzhou 310053China Institute of Pharmacology&Toxicology College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China

Taste receptors on the tongue discriminate between five fundamental tastes:sour,sweet,bitter,salty,and umami(Chandrashekar et al.,2006).Typically,stimuli that evoke bitterness and acidity prompt aversive responses by animals,whereas sweet and umami flavors are appetitive and *** is unique in that it transitions from an appetitive to an aversive stimulus with increasing concentrations.

关键词： prompt sweet sword

Prediction of three-dimensional ocean temperature in the South China Sea based on time series gridded data and a dynamic spatiotemporal graph neural network

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Acta Oceanologica Sinica 2024年第7期43卷 26-39页

作者： Feng Nan Zhuolin Li Jie Yu Suixiang Shi Xinrong Wu lingyu Xu Department of Computer Engineering and Science Shanghai UniversityShanghai 200444China Key Laboratory of Digital Ocean National Marine Data and Information ServiceTianjin 300171China

Ocean temperature is an important physical variable in marine ecosystems,and ocean temperature prediction is an important research objective in ocean-related ***,one of the commonly used methods for ocean temperature prediction is based on data-driven,but research on this method is mostly limited to the sea surface,with few studies on the prediction of internal ocean *** graph neural network-based methods usually use predefined graphs or learned static graphs,which cannot capture the dynamic associations among *** this study,we propose a novel dynamic spatiotemporal graph neural network(DSTGN)to predict threedimensional ocean temperature(3D-OT),which combines static graph learning and dynamic graph learning to automatically mine two unknown dependencies between sequences based on the original 3D-OT data without prior *** and spatial dependencies in the time series were then captured using temporal and graph *** also integrated dynamic graph learning,static graph learning,graph convolution,and temporal convolution into an end-to-end framework for 3D-OT prediction using time-series grid *** this study,we conducted prediction experiments using high-resolution 3D-OT from the Copernicus global ocean physical reanalysis,with data covering the vertical variation of temperature from the sea surface to 1000 m below the sea *** compared five mainstream models that are commonly used for ocean temperature prediction,and the results showed that the method achieved the best prediction results at all prediction scales.

关键词： dynamic associations three-dimensional ocean temperature prediction graph neural network time series gridded data

Yolk free egg substitute improves the serum phospholipid profile of mice with metabolic syndrome based on lipidomic analysis

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Food Science and Human Wellness 2024年第1期13卷 482-493页

作者： Zhihui Yu lingyu Fan Fei Tai Lixin Zhang Xiaoyu Zhang Yisheng Chen College of Food Science and Engineering Shanxi Agricultural UniversityTaigu 030801China Insitute of Food Nutrition and Safety Shanxi Agricultural UniversityTaiyuan 030031China Shanxi Key Laboratory of Edible Fungi for Loess Plateau Taigu 030801China

In this study,the impacts of egg consumption on mice model of metabolic syndrome(Met S)were comparatively *** were divided into five groups(n=8):normal diet group(ND),high-fat diet group(HFD),HFD with whole egg group(WE),HFD with free-yolk egg substitute group(YFES),and HFD with lovastatin group(Lov).Main biochemical indexes and a non-targeted lipidomic analysis were employed to insight the lipid profile changes in *** was revealed that WE could significantly improve serum biochemical indexes by reducing body weight,low-density lipoprotein cholesterol(LDL-C)and total cholesterol(TC),while increasing high-density lipoprotein *** exhibited remarkably better performance in increasing phosphatidylglycerol and phosphatidic acids,while decreasing phosphatidylinositol than WE.A total of 50 differential lipids biomarkers tightly related to glycerophospholipids metabolism were screened *** C18:2 and C12:1,SM(d18:0/12:0),and SM(d18:1/14:1)were significantly upregulated in YFES compared to *** reduced expression of SREBP-1c and Cpt1a,while did not affect the expression of PPAR-α.Sphingomyelin biomarkers were positively related to the TC(|r|>0.6),while PPAR-αwas negatively correlated with triglyceride and LDL-C *** sum up,YFES attenuated HFD-induced Met S by improving the serum phospholipids,which account for its modulation of glycerophospholipid metabolism.

关键词： Metabolic syndrome Whole egg Yolk free egg substitute Serum Lipidomics

Detwinning and Anneal-Hardening Behaviors of Pre-Twinned AZ31 Alloys under Cryogenic Loading

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1551-1563页

作者： lingyu Zhao Wei Zhu Chao Zhang Yunchang Xin Changjian Yan Yao Cheng Zhaoyang Jin School of Mechanical Engineering Yangzhou UniversityYangzhou225127China Key Laboratory for Light-Weight Materials Nanjing Tech UniversityNanjing210009China Institute of Corrosion Science and Technology Guangzhou510070GuangdongChina Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing Institute of TechnologyNanjing211167China

Detwinning behavior of a pre-twinned magnesium alloy AZ31 at cryogenic temperature was investigated,also with a focus on the annealing hardening behavior of samples with different fractions of ***-compression along the transverse direction with strains of 1.7%,3.0%,and 6.0% was applied to generated[1012]*** behavior,microstructure,and texture evolution during subsequent tension were *** results show that low temperature did not change the fact that detwinning still pre-dominated in the pre-twinned samples under reverse ***,a relatively harder migration of twin boundaries was found at cryogenic *** annealing hardening of 27-40 MPa was observed in the pre-twinned samples,and such a hardening effect shows a close relation with the fraction of pre-twins or the level of *** annealing hardening effect disappeared if the matrix was consumed by twins along with the increased pre-compression *** corresponding reasons for the annealing hardening behavior were discussed.

关键词： Mg alloys Detwinning Annealing hardening Cryogenic temperature Mechanical property

平面四孔六边形格网系统复进制数建模及编码运算

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测绘学报 2019年第6期48卷 791-800页

作者：杜灵瑀马秋禾贲进王蕊信息工程大学地理空间信息学院

格网系统是一种多分辨率栅格数据结构,在多尺度地理空间数据组织、处理和分析中应用广泛.六边形格网系统具有重要几何特性,相关研究已引起学术界广泛关注,格网层次关系描述及计算是研究难点之一.本文引入复进制数理论,通过间隔层次格网... 详细信息

格网系统是一种多分辨率栅格数据结构,在多尺度地理空间数据组织、处理和分析中应用广泛.六边形格网系统具有重要几何特性,相关研究已引起学术界广泛关注,格网层次关系描述及计算是研究难点之一.本文引入复进制数理论,通过间隔层次格网单元隶属关系,建立平面四孔六边形格网系统数学模型,据此提出等效编码方案,定义编码运算并归纳运算规则,设计编码索引、编码与笛卡儿坐标互换算法.对比试验结果表明,本文提出的编码方案与同类成果相比具有结构对称性,可显著提高编码操作效率,具有实际应用潜力.

关键词：六边形格网复进制数定位计数系统编码运算

Frequency and Reliability Analysis of Load-Bearing Composite Beams

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Automotive Innovation 2024年第1期7卷 194-207页

作者： Junlei Wei lingyu Sun Xinli Gao Wenfeng Pan Jiaxin Wang Jinxi Wang School of Transportation Science and Engineering Beihang University37 Xueyuan RoadHaidian DistrictBeijing 100191China Beijing Key Laboratory for High-Efficient Power Transmission and System Control of New Energy Resource Vehicle Beihang University37 Xueyuan RoadHaidian DistrictBeijing 100191China Beijing Hangshu Vehicle Data Research Institute Co. Ltd.Beijing 100062China

The increasing utilization of fiber-reinforced thermoplastics(FRTPs)as a substitute for metal in load-bearing structures poses challenges related to NVH issues arising from frequency variations and reliability concerns stemming from fiber dispersion within the resin *** this study,the steel automobile seat beam serves as a benchmark for *** beams are designed and fabricated using two distinct processes:compression molding and injection ***,their modal frequency and reliability are meticulously *** investigations are conducted to explore the influence of various factors,including the combination of laminates and ribs,as well as the stacking sequence of laminates,on the modal *** findings reveal that the modal frequency and vibration mode are subject to alterations based on the fiber type,beam material,and laminate stacking ***,in comparison to the steel benchmark,the first-order frequency of the FRTP beam in this study experiences a 6.59%increase while simultaneously achieving a weight reduction of 32.42%.To assess reliability,a comprehensive analysis is performed,considering a six-fold standard *** analysis yields the permissible range of fluctuation for material elastic constants,bending performance,and frequency ***,the FRTP beams meet the required reliability *** results provide valuable insights for comprehending the stiffness-dependent response and effectively controlling structural performance when implementing FRTP for weight reduction purposes.

关键词： Automobile Fiber-reinforced thermoplastics Lightweight design Frequency change Reliability analysis

A columnar multi-layer sliding triboelectric nanogenerator for water wave energy harvesting independent of wave height and direction

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Nano Research 2024年第4期17卷 3029-3034页

作者： Xue Miao Hanxiao Yang Zekun Li Meifei Cheng Yilin Zhao lingyu Wan Aifang Yu Junyi Zhai Center on NanoEnergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Beijing Institute of Nano Energy and Nano Systems Chinese Academy of SciencesBeijing 101400China School of Nanoscience and Engineering University of Chinese Academy of ScienceBeijing 101408China

The ocean,with its highly variable and complex meteorological conditions,harbors enormous renewable *** nanogenerators(TENGs),which possess unique advantages,show exciting prospects in water wave energy *** to design and optimize TENGs to cover all characteristic water wave energies and achieve efficient energy utilization is *** this paper,we carefully designed and fabricated a columnar multi-layer sliding TENG(CMLS-TENG)that can harvest water wave energy independent of wave height and *** rods with a hollow acrylic spherical shell were introduced to deliver wave energy,ensuring that the CMLS-TENG can work in all directions from 0°to 360°.Based on the sliding structure,switching the optimized CMLS-TENG is independent of wave *** optimized CMLS-TENG can achieve a total power density of 730 mW/m^(3) at a wave height of only 4.8 cm regardless of wave direction,which can illuminate multiple light-emitting diodes(LEDs)to provide lighting and provide power to a watch and a hygrometer for temperature and humidity *** work provides new choices and hopes for the effective collection of full-range water wave energy.

关键词： triboelectric nanogenerator wave energy multi-direction columnar slide