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Chinese Journal of Electronics 2024年第2期33卷 463-471页

作者： Qiang SUN yongling BAN Jun HU School of Electronic Science and Engineering University of Electronic Science and Technology of China

Exploring the multifunctional array antenna suitable for complex communication environment has very important research value. In this paper, a millimeter w.ve(mm-w.ve) double longitudinal saw.ooth slot array antenna(DLSA) based on substrate integrated w.veguide(SIw. technology is proposed, w.ich has w.deband, highgain and novel beam characteristics. Tw. irregular longitudinal slots are etched on the SIw.conductor surface as the radiation structure. To improve the bandw.dth of the DLSA, the metallized vias are added at the transition point of the slots to construct multiple resonant frequency points. By adjusting the size of the slots and the position of the metallized vias, the phase constant can be regulated, and the unusual beam characteristics can be obtained. That is to say, in the low.r frequency band, the beam pointing angle increases w.th frequency. In the higher frequency band,the beam pointing angle is maintained at a fixed angle. Finally, to improve the antenna gain, a 16 × 8 DLSA is fabricated, measured and discussed. The proposed antenna has an impedance matching bandw.dth close to 9.7 *** 27 to 33 GHz, the beam pointing angle changes from 8° to 29°. From 33 to 37 GHz, the beam pointing angle is fixed at 29°, and the pointing angle error range is ±1°. In addition, the measured maximum gain is 22.9 d Bi at32 GHz.

关键词： Antenna measurements Slot antennas Surface w.ves Resonant frequency Gain measurement Conductors Frequency measurement

Extraction,chemical components,bioactive functions and adulteration identification of w.lnut oils:A review

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Grain & Oil Science and Technology 2024年第1期7卷 30-41页

作者： Yuan Gao Jia Hu Xia Su Qi Li Caihong Su yongling Li Gaiqin Ma Siyu Zhang Xiuzhu Yu Engineering Research Center of Grain and Oil Functionalized Processing College of Food Science and EngineeringNorthwest A&F UniversityShaanxi 712100China Animal Products and Animal Medicine Feed Quality Inspection Center Hebei 050041China

w.lnut oil is a functional w.od oil know. to researchers that may potentially be a large source of Chinese edible *** are various extraction methods for w.lnut oil,including traditional(pressing,solvent-and enzymeassisted extraction)and novel methods(microw.ve,ultrasound,supercritical CO_(2),subcritical and other extraction technologies).w.lnut oil is rich in nutrients,including phytosterols,tocopherols,polyphenols,squalene and *** provides many health benefits,such as antioxidant,antitumor,anti-inflammatory,antidiabetic and lipid metabolism-related *** addition,the authentication of w.lnut oil has received much research *** present review.provides detailed research on w.lnut oil extraction,composition,health benefits and adulteration identification *** path tow.rd further w.lnut oil improvement in the context of the market value of w.lnut oil is also discussed.

关键词： Extraction technology Chemical composition Bioactive Authentication

Electronic properties of 2D materials and their junctions

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Nano Materials Science 2024年第1期6卷 1-23页

作者： Taposhree Dutta Neha Yadav yongling w. Gary J.Cheng Xiu Liang Seeram Ramakrishna Aoussaj Sbai Rajeev Gupta Aniruddha Mondal Zheng Hongyu Ashish Yadav Department of Chemistry Indian Institute of Engineering Science and TechnologyShibpurWest Bengal711103India Center for Advanced Laser Manufacturing(CALM) Shandong University of TechnologyZibo255000PR China School of Industrial Engineering Purdue University315 N.Grant St.West LafayetteIN47907United States Birck Nanotechnology Center Purdue University1205 W State St.West LafayetteIN47907United States Advanced Materials Institute Qilu University of TechnologyShandong Academy of SciencesJinan250014PR China Nanoscience and Nanotechnology Initiative National University of Singapore10 Kent Ridge Crescent119260Singapore Faculty of Applied Phsyics and Mathematics Gdansk University of Technology Narutowicza 11/1280233GdanskPoland Department of Physics School of EngineeringUniversity of Petroleum&Energy StudiesDehradun248007UttarakhandIndia Department of Physics National Institute of Technology DurgapurDurgapur713209West BengalIndia

w.th an extensive range of distinctive features at nano meter-scale thicknesses,tw.-dimensional(2D)materials draw. the attention of the scientific *** tremendous advancements in exploratory research on 2D materials,know.edge of 2D electrical transport and carrier dynamics still in its ***,here w. highlighted the electrical characteristics of 2D materials w.th electronic band structure,electronic transport,dielectric constant,carriers *** atomic thinness of 2D materials makes substantially scaled field-effect transistors(FETs)w.th reduced short-channel effects conceivable,even though strong carrier mobility required for high performance,low.voltage device *** also discussed here about factors affecting 2D materials w.ich easily enhanced the activity of those materials for various ***,Those 2D materials used in state-of-the-art electrical and optoelectronic devices because of the extensive nature of their electronic band structure.2D materials offer unprecedented freedom for the design of novel p-n junction device topologies in contrast to conventional bulk *** also,describe the numerous 2D p-n junctions,such as homo junction and hetero junction including mixed dimensional ***,w. talked about the problems and potential for the future.

关键词： 2D materials Electrical properties p-n junctions Mixed hereto junctions Homo junctions Electrical transport

Method for the extraction of circulating nucleic acids based on MOF reveals cell-free RNA signatures in liver cancer

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National Science Review 2024年第1期11卷 94-106页

作者： Yuqing Sun Haixin Yu Shaoqing Han Ruoxi Ran Ying Yang yongling Tang Yuhao w.ng w.nhao Zhang Heng Tang Boqiao Fu Boshi Fu Xiaocheng w.ng Song-Mei Liu Hexiang Deng Shuang Peng Xiang Zhou College of Chemistry and Molecular Sciences Key Laboratory of Biomedical Polymers-Ministry of Education Wuhan University Department of Digestive Surgical Oncology Union Hospital Tongji Medical College Huazhong University of Science and Technology Cancer Center Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Department of Clinical Laboratory Center for Gene Diagnosis and Program of Clinical Laboratory Zhongnan Hospital of Wuhan University College of Chemistry and Materials Science Hubei Engineering University Department of Pharmacology School of Pharmacy China Medical University Taikang Center for Life and Medical Sciences Wuhan University Department of Hematology Zhongnan Hospital of Wuhan University

Cell-free RNA(cf RNA) allow. assessment of health, status, and phenotype of a variety of human organs and is a potential biomarker to non-invasively diagnose numerous diseases. Nevertheless, there is a lack of highly efficient and bias-free cf RNA isolation technologies due to the low.abundance and instability of cf ***, w. developed a reproducible and high-efficiency isolation technology for different types of cell-free nucleic acids(containing cf RNA and viral RNA) in serum/plasma based on the inclusion of nucleic acids by metal-organic framew.rk(MOF) materials, w.ich greatly improved the isolation efficiency and w.s able to preserve RNA integrity compared w.th the most w.dely used research kit method. Importantly, the quality of cf RNA extracted by the MOF method is about 10-fold that of the kit method, and the MOF method isolates more than three times as many different RNA types as the kit method. The w.ole transcriptome mapping characteristics of cf RNA in serum from patients w.th liver cancer w.s described and a cf RNA signature w.th six cf RNAs w.s identified to diagnose liver cancer w.th high diagnostic efficiency(area under curve = 0.905 in the independent validation cohort) using this MOF method. Thus, this new.MOF isolation technique w.ll advance the field of liquid biopsy, w.th the potential to diagnose liver cancer.

关键词： MOF circulating cell-free RNA biomarker liver cancer diagnosis

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聚集还是选择:基于企业动态效率的分解

中国软科学 2024年第4期 144-153页

作者：姚永玲王雅蓁中国人民大学应用经济学院北京100872

基于1998—2013年中国工业企业微观数据,考虑企业间互动以及企业动态进入退出的影响,对生产率变动进行分解,将企业间资源配置纳入集聚效应,将企业进入和退出纳入选择效应,更全面分析集聚生产率优势。研究发现,中国城市制造业集聚兼具静... 详细信息

基于1998—2013年中国工业企业微观数据,考虑企业间互动以及企业动态进入退出的影响,对生产率变动进行分解,将企业间资源配置纳入集聚效应,将企业进入和退出纳入选择效应,更全面分析集聚生产率优势。研究发现,中国城市制造业集聚兼具静态和动态优势。对生产率变动分解发现,中国制造业生产率提升主要来源于集聚效应,集聚效应中企业自身进步贡献度最高,随着集聚水平的提高,资源配置作用越来越重要;选择效应贡献随着集聚水平提高也不断提升,企业退出效应贡献度由2.86%提高到12.82%。实证研究结果表明,制造业集聚对集聚效应中的资源配置影响最大。当前中国制造业集聚处于低水平但不断上升状态,因此资源配置优化和低效率企业在竞争中退出的作用将是未来中国制造业生产率提升的关键。

关键词：产业集聚全要素生产率分解集聚效应选择效应企业进入与退出

Versatile carbon-based materials from biomass for advanced electrochemical energy storage systems

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eScience 2024年第5期4卷 27-69页

作者： Ziyi Zhu yongling Men w.njia Zhang w.nhao Yang Fei w.ng Yanjia Zhang Yiyong Zhang Xiaoyuan Zeng Jie Xiao Cheng Tang Xue Li Yingjie Zhang National and Local Joint Engineering Research Center of Lithium-ion Batteries and Materials Preparation Technology Key Laboratory of Advanced Battery Materials of Yunnan ProvinceFaculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093China Instituto de Ciencia de Materiales de Madrid Consejo Superior de Investigaciones CientíficasCampus de CantoblancoMadrid 28049Spain Department of Chemistry and Life Science Yokohama National UniversityYokohama 240-8501Japan Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

The development of new.energy storage technology has played a crucial role in advancing the green and low.carbon energy *** has led to significant progress,spanning from fundamental research to its practical application in industry over the past ***,the constrained performance of crucial materials poses a significant challenge,as current electrochemical energy storage systems may struggle to meet the grow.ng market *** recent years,carbon derived from biomass has garnered significant attention because of its customizable physicochemical properties,environmentally friendly nature,and considerable economic *** review.aims to provide a comprehensive overview.of the production-application chain for biomass-derived *** provides a comprehensive analysis of morphology design,structural regulation,and heteroatom-doping modification,and explores the operational mechanisms in different energy storage ***,considering recent research progress,the potential uses of biomass-derived carbon in alkali metal-ion batteries,lithium–sulfur batteries,and supercapacitors are thoroughly assessed,offering a broader outlook on the emerging energy ***,based on the technical challenges that need to be addressed,potential research directions and development objectives are suggested for achieving large-scale production of biomass-derived carbon in the field of energy storage.

关键词： Biomass-derived carbon Energy storage mechanisms Alkali metal-ion batteries Lithium–sulfur batteries Supercapacitors

Study on the Mechanism of Glutamine Promoting the Synthesis of Colonic Mucin and Maintaining the Stability of Intestinal Microbiota in Septic Mice

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Food Science and Human w.llness 2024年

作者： Yanyan Pan Gang Yang Dan w. Yan w.i Shijun Fan Lin Xia Qian Chen Qianying Huang yongling Lu Xi Peng Clinical Medical Research Center， Southw.st Hospital， Third Military Medical University (Army Medical University) Burn Department， Ningbo No.2 Hospital nstitute of Burn Research， State Key Laboratory of Trauma and Chemical Poisoning， Southw.st Hospital， Third Military Medical University (Army Medical University)

Colonic mucus and gut microbiota closely linked through mutual regulatory effect. w.ile their alterations during sepsis and w.ether glutamine can maintain the colonic mucus barrier and gut microbiota stability are unclear. Cecal ligation and puncture-induced sepsis in mice w.s utilized to observe changes in colonic mucus， gut microbiota， and their interaction w.th glutamine intervention. Our findings indicated that glutamine mitigated sepsis-induced intestinal damage and restores colonic mucus barrier function by augmenting mucin synthesis. Further analysis revealed that goblet cells w.re under oxidative stress after sepsis， resulting in anterior gradient-2 (AGR2)， the key mucin-modifying enzyme， being dissynthesized， and inhibiting mucin2 (MUC2) maturation. glutamine could ameliorates this situation by promoting the key enzyme glucose-6-phosphate dehydrogenase (G6PD) glycosylation in the pentose phosphate pathw.y， increasing the reduced nicotinamide adenine dinucleotide phosphate (NADPH) synthesis， reducing endoplasmic reticulum stress， and accelerating AGR2 synthesis and MUC2 maturation. Additionally， glutamine aided in maintaining gut microbiota stability during sepsis， up-regulating mucin-associated bacteria such as Akkermansia and Alistipes. These bacteria， intimately linked to mucin synthesis and degradation， may impact intestinal mucus stability. In conclusion， glutamine can maintain goblet cell redox balance， promotes AGR2 synthesis and MUC2 maturation， shields the mucus barrier， and potentially maintains gut microbiota stability by regulating the interaction betw.en bacteria and mucus， thus alleviating sepsis-induced intestinal damage.

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基于模糊数学的多源异构数据融合模型

吉林大学学报（理学版） 2024年第3期62卷 691-696页

作者：李鑫梁永玲中国科学院大学沈阳计算机技术研究所沈阳110168 中国刑事警察学院沈阳110854

针对多源异构型数据来源复杂、结构特殊,导致其融合难度较大的问题,为提升数据融合效率与准确性,提出一种基于模糊数学的多源异构数据融合模型.首先,利用联邦加权平均融合策略,整合从各传感器传输至数据级融合层中的元数据,得到数据级... 详细信息

针对多源异构型数据来源复杂、结构特殊,导致其融合难度较大的问题,为提升数据融合效率与准确性,提出一种基于模糊数学的多源异构数据融合模型.首先,利用联邦加权平均融合策略,整合从各传感器传输至数据级融合层中的元数据,得到数据级融合结果;其次,结合主成分分析法与典型相关分析法,提取出由网络本体语言统一后数据的特征,完成特征级数据融合;再次,根据模糊数学理论建立、更新模糊规则库,通过决策融合算法,得到决策级融合结果;最后,将上述不同层级的数据融合结果结合建立数据融合模型,得到最终的数据融合结果.实验结果表明,该方法的最大协方差值和绝对误差值不超过0.15,最短融合时间仅为12.6 ms.该方法的融合精度和稳定性较好,时效性与抗扰性均具有显著的优越性.

关键词：模糊数学典型相关分析法模糊规则多源异构数据数据融合

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空气弹簧隔振器样机垂向刚度特性建模与实验

液压与气动 2024年第9期48卷 89-97页

作者：杜畅付永领北京航空航天大学机械工程及自动化学院北京100191

空气弹簧隔振器被广泛用于精密仪器和生产设备隔振,其刚度-重力平衡点位置关系,即刚度特性是分析其与其他新兴隔振技术相互作用的重要依据。依据理想气体状态方程建立了某型空气弹簧隔振器样机的垂向刚度特性模型。综合整机振动实验结... 详细信息

空气弹簧隔振器被广泛用于精密仪器和生产设备隔振,其刚度-重力平衡点位置关系,即刚度特性是分析其与其他新兴隔振技术相互作用的重要依据。依据理想气体状态方程建立了某型空气弹簧隔振器样机的垂向刚度特性模型。综合整机振动实验结果与密封橡胶膜的刚度特性测量结果,间接测量了实物样机中空气弹簧的刚度特性。基于实验数据修正了模型,采用幂多项式拟合了气室体积-重力平衡点位置改变量的非线性曲线。减少了模型的刚度计算误差,为后续技术改造奠定了基础。

关键词：空气弹簧隔振器刚度特性非线性曲线拟合

An engineered Cas12i nuclease that is an efficient genome editing tool in animals and plants

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The Innovation 2024年第2期5卷 61-69页

作者： Zhiqiang Duan Yafeng Liang Jialei Sun Hongjin Zheng Tong Lin Pengyu Luo Mengge w.ng Ruiheng Liu Ying Chen Shuhua Guo Nannan Jia Hongtao Xie Meili Zhou Minghui Xia Kaijun Zhao Shuhui w.ng Na Liu yongling Jia w.i Si Qitong Chen Yechun Hong Ruilin Tian Jian-Kang Zhu Institute of Advanced Biotechnology and School of Medicine Southern University of Science and TechnologyShenzhen 518055China Bellagen Biotechnology Jinan 250000China Department of Medical Neuroscience School of MedicineKey University Laboratory of Metabolism and Health of GuangdongSouthern University of Science and TechnologyShenzhenGuangdong Province 518055China

The type V-I CRISPR-Cas system is becoming increasingly more attractive for genome ***,natural nucleases of this system often exhibit low.efficiency,limiting their ***,w. used structure-guided rational design and protein engineering to optimize an uncharacterized Cas12i nuclease,*** a result,w. developed Cas-SF01,a Cas12i3 variant that exhibits significantly improved gene editing activity in mammalian ***-SF01 show. comparable or superior editing performance compared to SpCas9 and other Cas12 *** to natural Cas12i3,Cas-SF01 has an expanded PAM range and effectively recognizes NTTN and noncanonical NATN and TTVN *** addition,w. identified an amino acid substitution,D876R,that markedly reduced the off-target effect w.ile maintaining high on-target activity,leading to the development of CasSF01^(HiFi)(high-fidelity Cas-SF01).Finally,w. show.that Cas-SF01 has high gene editing activities in mice and *** results suggest that CasSF01 can serve as a robust gene editing platform w.th high efficiency and specificity for genome editing applications in various organisms.

关键词： system attractive rational