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Laser-induced jigsaw-like graphene structure inspired by Oxalis corniculata ***

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Bio-Design and Manufacturing 2022年第4期5卷 700-713页

作者： Wentao Wang Longsheng lu xiaoyu lu Zhanbo Liang Biao Tang Yingxi Xie School of Mechanical and Automotive Engineering South China University of TechnologyGuangzhou 510641China Guangdong Provincial Key Laboratory of Optical Information Materials and Technology South China Normal UniversityGuangzhou 510006China

The laser scribing of polyimide(PI, Kapton) film is a new, simple and effective method for graphene preparation. Moreover,the superhydrophobic surface modification can undoubtedly widen the application fields of graphene. Herein, inspired by the hydrophobic and self-cleaning properties of natural Oxalis corniculata Linn. leaves, we propose a novel bionic manufacturing method for superhydrophobic laser-induced graphene(LIG). By tailoring the geometric parameters(size, roughness and height/area ratio) and chemical composition, the three-dimensional(3D) multistage LIG, i.e., with micro-jigsaw-like and porous structure, can deliver a static water contact angle(WCA) of 153.5° ± 0.6°, a water sliding angle(WSA) of 2.5° ±0.5°, and great superhydrophobic stability lasting for 100 days(WCAs ≈ 150°). This outstanding water repellency is achieved by the secondary structure of jigsaw-like LIG, a porous morphology that traps air layers at the solid–liquid interface. The robust self-cleaning and anti-stick functions of 3D bionic and multistage LIG are demonstrated to confirm its great potential in wearable electronics.

关键词： Laser-induced graphene Oxalis corniculata Linn Bionic Multistage structure Superhydrophobic surface

面向数智时代的体育经济与管理人才培养改革研究

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当代体育科技 2024年第18期14卷 134-137页

作者：陆晓雨姚婉婉首都体育学院北京100091

采用文献资料法、访谈法、逻辑分析法,探讨了面向数智时代的体育经济与管理人才培养改革模式。基于OBE理念,分析了面向数智时代的体育经济管理人才培养改革思路。从优化人才培养目标,打造“数智通识课程+体育经济管理专业核心课程+实训... 详细信息

采用文献资料法、访谈法、逻辑分析法,探讨了面向数智时代的体育经济与管理人才培养改革模式。基于OBE理念,分析了面向数智时代的体育经济管理人才培养改革思路。从优化人才培养目标,打造“数智通识课程+体育经济管理专业核心课程+实训课程”课程体系,创新教学方法,提供优质师资保障,加强实践基地建设等方面,提出了面向数智时代体育经济与管理人才培养改革措施。

关键词：数字经济体育经济与管理人才培养模式 OBE理念课程体系

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体育场馆运营与管理课程教学改革研究

冰雪体育创新研究 2024年第10期 116-118页

作者：陆晓雨况诗韵首都体育学院北京100091

该文分析了体育场馆运营与管理课程的现状,从坚持以学生为中心的课程目标理念,以跨学科主题教育创新教学内容,以实践活动丰富教学活动,激发学生学习兴趣,运用案例教学激发学生主体性,结合体育场馆课程特点,深挖课程思政等方面,提出了体... 详细信息

该文分析了体育场馆运营与管理课程的现状,从坚持以学生为中心的课程目标理念,以跨学科主题教育创新教学内容,以实践活动丰富教学活动,激发学生学习兴趣,运用案例教学激发学生主体性,结合体育场馆课程特点,深挖课程思政等方面,提出了体育场馆运营与管理课程教学改革的方案思路。

关键词：体育场馆跨学科教学改革

均布载荷作用下正交异性组合简支梁的弹性理论和数值研究

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九江学院学报（自然科学版） 2024年第1期39卷 21-27,32页

作者：董继蕾李亮卢小雨安徽理工大学力学与光电物理学院安徽淮南232001

正交异性材料组合简支梁可以发挥由一种材料组合而成的单根梁所无法比拟的优势。文章采用弹性力学中的半逆解法,首先,基于弹性力学的基础假设,推导出了在均布载荷作用下正交异性组合简支梁的应力分析解析式。然后,运用ANSYS软件进行模... 详细信息

正交异性材料组合简支梁可以发挥由一种材料组合而成的单根梁所无法比拟的优势。文章采用弹性力学中的半逆解法,首先,基于弹性力学的基础假设,推导出了在均布载荷作用下正交异性组合简支梁的应力分析解析式。然后,运用ANSYS软件进行模型的数值模拟。将ANSYS模拟得到的结果与理论解析解的求解计算结果进行比较,进一步佐证理论解析解的可行性和准确性。最后,根据所研究的内容和结果对未来的研究方向进行展望,并对实际工程中的应用提出了一些比较合理的建议。

关键词：均布载荷正交异性组合梁弹性理论数值研究

Development of polymorphic SSR markers and their applicability in genetic diversity evaluation in Euptelea pleiosperma

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BIOCELL 2022年第11期46卷 2489-2495页

作者： XIAOJUN ZHOU xiaoyu lu XUBO WANG College of Life Science Luoyang Normal UniversityLuoyang471934China

Euptelea pleiosperma is a characteristic species of East Asian flora with both ornamental and scientific *** on the reduced-representation sequencing(RRS)technology of RAD-Seq,this study conducted high-throughput Illumina paired-end sequencing to find SSR marker information in the genome of ***,and to screen and verify polymorphism of SSR *** obtained 5.5G of high-quality data using *** total number of contigs of the RAD tags was 299,376,with the maximum contig length of 2,062 bp and the average length of 445 *** these sequences,we identified 20,718 SSR loci,with a distribution density of one SSR per 6.45 kb(1/6.45 kb).Among all SSRs,dinucleotides(52.00%)were the most detected SSRs,followed by mononucleotides(21.63%).AG/CT was the dominant motif in the SSR loci,accounting for 34.8%.Primers were successfully designed for 14,593 loci,and 100 pairs of these primers were randomly selected for chemical synthesis and validated by SSR-PCR amplification in 20 individuals of ***-nine primers were able to amplify the target *** 3.0 software was used to analyze the selected 20 SSR loci with good *** the 20 SSR markers,the number of alleles ranged from 4 to 9,and the observed heterozygosity and expected heterozygosity were from 0.35 to 0.75 and 0.541 to 0.875,*** information content of polymorphic loci ranged from 0.463 to 0.848,with an average value of *** them,there were 18 highly polymorphic loci,and 20 SSR loci did not deviate from the Hardy-Weinberg ***,the 20 pairs of SSR primers were used to conduct PCoA analysis based on Nei’s genetic distance of 51 individuals from three *** results showed that these SSR markers could distinguish genetic differences based on different geographical locations.

关键词： Cluster analysis E.pleiosperma RAD-Seq Rare species SSR markers

10 kV配网电压互感器PT铁磁谐振异常仿真模型研究

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粘接 2024年第1期51卷 185-188页

作者：卢晓宇高岳达赵哲内蒙古电力(集团)有限责任公司电能计量分公司内蒙古呼和浩特010000

为了研究PT铁磁谐振所带来的影响,分析其影响因素,以10 kV低压配电网形成PT铁磁谐振过电压的基本原理为基础,利用EMTP-ATP计算机软件,构建中性点不接地系统仿真模型。以电压互感器的励磁特性、三相参数不平衡2大因素对铁磁谐振影响为例... 详细信息

为了研究PT铁磁谐振所带来的影响,分析其影响因素,以10 kV低压配电网形成PT铁磁谐振过电压的基本原理为基础,利用EMTP-ATP计算机软件,构建中性点不接地系统仿真模型。以电压互感器的励磁特性、三相参数不平衡2大因素对铁磁谐振影响为例,进行仿真计算分析。仿真结果表明:PT铁磁特性较佳,可以减少谐振发生的概率,不过不能完全消除;此外,PT铁磁谐振产生较多的几率,受三相参数不平衡,或者对地电容大小不平衡等因素影响较大。基于仿真结果开展对各影响因素范围进行比较,进而为10 kV配网电压互感器PT铁磁谐振防治措施提供相关参考数据。

关键词： 10 kV配电网电压互感器 PT铁磁谐振电压仿真

盐胁迫下丛枝菌根真菌接种和虎尾草伴生对羊草生长和生理特性的影响

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中国草地学报 2024年第6期46卷 22-35页

作者：王子贺刘雅洁金蕴卢晓瑜李进华杨春雪东北林业大学园林学院黑龙江哈尔滨150040

松嫩平原盐渍化土壤中广泛分布的丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)能够与该地区的优势草种——羊草(Leymus chinensis)良好共生并提高其盐碱耐性。同时,虎尾草(Chloris virgata)作为羊草的自然伴生种,可能通过种间互作... 详细信息

松嫩平原盐渍化土壤中广泛分布的丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)能够与该地区的优势草种——羊草(Leymus chinensis)良好共生并提高其盐碱耐性。同时,虎尾草(Chloris virgata)作为羊草的自然伴生种,可能通过种间互作影响羊草生长,但有关虎尾草伴生以及虎尾草与AMF共同作用影响羊草生长的机制尚未见报道。本研究以松嫩盐碱草地羊草根围的AMF群落为接菌剂,虎尾草为伴生种,开展盆栽控制试验,探究盐胁迫下AMF、虎尾草以及二者相互作用对土著植物羊草生长的影响。结果表明:(1)盐胁迫显著抑制羊草生长,但能够促进AMF对羊草根系的侵染。(2)盐胁迫下,接种AMF能够提高球囊霉素相关土壤蛋白含量、羊草地上生物量和过氧化物酶活性,并促进叶片生长和叶绿素合成;而虎尾草伴生可以显著提高盐胁迫下羊草幼苗的叶绿素含量、过氧化氢酶活性和渗透调节物质浓度;AMF与虎尾草伴生共同作用有效缓解了羊草植株损伤,其根系侵染、球囊霉素相关土壤蛋白含量、叶长、地上生物量以及过氧化氢酶活性均得到提高,同时,该处理的丙二醛含量最低。(3)在无盐胁迫处理组中,除球囊霉素相关土壤蛋白含量、过氧化氢酶活性以及可溶性糖含量外,AMF接种、虎尾草伴生和二者交互处理组的羊草植株生长和生理指标数值均低于对照组。

关键词：羊草虎尾草盐胁迫丛枝菌根真菌菌丝网络伴生

Scorpion-inspired dual-bionic,microcrack-assisted wrinkle based laser induced graphene-silver strain sensor with high sensitivity and broad working range for wireless health monitoring system

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Nano Research 2023年第1期16卷 1228-1241页

作者： Wentao Wang Longsheng lu xiaoyu lu Zhanbo Liang Honghao Lin Zehong Li Xiaohua Wu Lihui Lin Yingxi Xie School of Mechanical&Automotive Engineering South China University of TechnologyGuangzhou 510641China

Scorpions,through ruthless survival of the fittest,evolve the unique ability to quickly locate and hunt prey with slit receptors near the leg joints and a sharp sting on the multi-freedom *** by this fantastic creature,we herein report a dual-bionic strategy to fabricate microcrack-assisted wrinkle strain sensor with both high sensitivity and ***,laserinduced graphene(LIG)is transferred from polyimide film to Ecoflex and then coated with silver paste using the casting-andpeeling and prestretch-and-release *** shape-adaptive and long-range ordered geometry(e.g.,amplitude and wavelength)of dual-bionic structure is prestrain-tuned to optimize the superfast response time(~76 ms),high sensitivity(gauge factor=223.6),broad working range(70%–100%),and good reliability(>800 cycles)of scorpion-inspired strain sensor,outperforming many LIG-based materials and other bionic *** alternate reconnect/disconnect behaviors of slit-organlike microcracks in the mechanical weak areas initiate tremendous resistance changes,whereas the scorpion-tail-like wrinkles act as a“bridge”connecting the adjacent LIG resistor units,enabling reversible resilience and unimpeded electrical linkages over a wide strain *** with the self-developed miniaturized,flexible,and all-in-one wireless transmission system,a variety of scenarios such as large body movements,tiny pulse,and heartbeat are real-time monitored via bluetooth and displayed in the client-sides,revealing a huge promise in future wearable electronics.

关键词： laser-induced graphene strain sensor scorpion dual-bionic microcrack-assisted wrinkle health monitoring system

Acid–base Homeostasis and Implications to the Phenotypic Behaviors of Cancer

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Genomics, Proteomics & Bioinformatics 2023年第6期21卷 1133-1148页

作者： Yi Zhou Wennan Chang xiaoyu lu Jin Wang Chi Zhang Ying Xu Cancer Systems Biology Center China–Japan Union HospitalJilin UniversityChangchun 130033China Department of Biochemistry and Molecular Biology and Institute of Bioinformatics University of GeorgiaAthensGA 30602USA Department of Medical and Molecular Genetics Indiana University School of MedicineIndianapolisIN 46202USA Department of Electrical and Computer Engineering Purdue UniversityWest LafayetteIN 47907USA Department of Biohealth Informatics Indiana University–Purdue University IndianapolisIndianapolisIN 46202USA Departments of Chemistry and of Physics and Astronomy Stony Brook UniversityStony BrookNY 11794USA

Acid–base homeostasis is a fundamental property of living cells,and its persistent disruption in human cells can lead to a wide range of *** this study,we conducted a computational modeling analysis of transcriptomic data of 4750 human tissue samples of 9 cancer types in The Cancer Genome Atlas(TCGA)*** on our previous study,we quantitatively estimated the average production rate of OHby cytosolic Fenton reactions,which continuously disrupt the intracellular pH(pHi)*** predictions indicate that all or at least a subset of 43 reprogrammed metabolisms(RMs)are induced to produce net protons(H+)at comparable rates of Fenton reactions to keep the pHi *** then discovered that a number of wellknown phenotypes of cancers,including increased growth rate,metastasis rate,and local immune cell composition,can be naturally explained in terms of the Fenton reaction level and the induced *** study strongly suggests the possibility to have a unified framework for studies of cancerinducing stressors,adaptive metabolic reprogramming,and cancerous *** addition,strong evidence is provided to demonstrate that a popular view that Na+/H+exchangers along with lactic acid exporters and carbonic anhydrases are responsible for the intracellular alkalization and extracellular acidification in cancer may not be justified.

关键词： Acid-basehomeostasis Cancer microenvironment Metabolic reprogramming Fenton reaction Ironmetabolism