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Study on the Photosynthetic Characteristics of Six Varieties(Strains)in Chinese Chestnut

Agricultural Biotechnology 2024年第1期13卷 9-14,57页

作者： Lizhi FU Yong YANG xiaoxiao kang Meng WANG Jing LIU Xuan WANG Dongsheng WANG Liyang YU Hai’e ZHANG College of Horticultural Science and Technology Hebei Normal University of Science and TechnologyQinhuangdao 066004China Engineering Research Center of Chestnut Industrial Technology Ministry of EducationQinhuangdao 066004China Key Laboratory of Germplasm Mining and Innovative Utilization of Characteristic Horticulture Hebei ProvinceQinhuangdao 066004China Hebei Chestnut Industry Collaborative Innovation Center Qinhuangdao 066004China

[Objectives]This study was conducted to investigate the differences of photosynthetic physiological characteristics of different varieties(strains),which will provide a theoretical basis for high photosynthesis efficiency breeding and application in Chinese chestnut.[Methods]Six Chinese chestnut varieties of Castanea mollissima‘Yanbao’,***‘Yanqiu’,***‘Yanchang’,***‘Yanjia’,***‘Qianxi 37’,and ***‘Hybrid 22’were used as the *** the portable photosynthesis system Li-6400,we measured the photosynthetic characteristics and diurnal variation of leaf samples of six different chestnut varieties or *** fitted the light response curves and photosynthetic parameters using the leaf floating ***,we determined the chlorophyll content in the leaves using a UV-visible spectrophotometer.[Results]Among the six chestnut varieties or strains,‘Yanqiu’exhibited a significantly higher photosynthetic light saturation point(P LSP)compared to other five varieties,and‘Hybrid 22’ranked second,indicating that these two varieties had the strongest adaptation to high light *** photosynthetic light compensation point(P LCP)of‘Yanchang’was significantly higher than other five varieties,and"Qianxi 37"ranked second,indicating that these two varieties had the strongest adaptation to low light ***,they exhibited higher chlorophyll content and maintained good photosynthetic characteristics even in shaded environments with weak light ***‘Yanbao’and‘Yanjia’showed higher P LSP and lower P LCP,indicating that these two varieties have a wider range of adaptation to light *** were capable of efficiently utilizing light across a broader spectrum of intensities.‘Yanqiu’had the highest maximum net photosynthetic rate(P n,max)and the lowest dark respiration rate(R d),along with the highest chlorophyll *** indicated that‘Yanqiu’has strong photosynthetic capacity and organic mat

关键词： Chinese chestnut Diurnal variation of photosynthesis Light response model Light response curve Chlorophyll

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基于VMD-WOA混合多尺度分解的区间组合预测模型

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武汉理工大学学报（信息与管理工程版） 2024年第3期46卷 460-466页

作者：康晓晓陈华友韩冰胡彦安徽大学大数据与统计学院安徽合肥230601 安徽大学数学科学学院安徽合肥230601 安徽大学国际教育学院安徽合肥230039

针对传统的点预测模型难以适用于随机性复杂系统和非线性非平稳时间序列预测的问题,提出基于VMD-WOA混合多尺度分解的区间组合预测模型。首先,引入基于鲸鱼优化(WOA)的变分模态分解(VMD)混合分解算法,得到最优区间模态子序列;其次,对各... 详细信息

针对传统的点预测模型难以适用于随机性复杂系统和非线性非平稳时间序列预测的问题,提出基于VMD-WOA混合多尺度分解的区间组合预测模型。首先,引入基于鲸鱼优化(WOA)的变分模态分解(VMD)混合分解算法,得到最优区间模态子序列;其次,对各区间模态分序列使用指数平滑方法(Holt′s)、支持向量回归(SVR)和BP神经网络预测,得到3个单项预测结果,运用组合预测模型得到模态组合子序列;最后,对模态组合子序列重构,得到最终的区间组合预测序列。为了验证模型的有效性,选取AQI数据进行预测分析,实验表明所提出的基于VMD-WOA的区间组合预测方法具有较高的预测精度和良好的适应性。

关键词：混合多尺度分解变分模态分解(VMD) 鲸鱼优化(WOA) 区间组合预测空气质量指数

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Protective and Adverse Roles of DDX3X in Different Cell Types in Nonalcoholic Steatohepatitis Progression

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Research 2024年第3期6卷 561-574页

作者： Suzhen Yang Lin Zhou Tianming Zhao Hanlong Zhu Tingting Luo kang Jiang xiaoxiao Shi Chunyan Chen Han Zhang Si Zhao Xiaoping Zou Yuzheng Zhuge Fangyu Wang Lei Wang Mingzuo Jiang Bing Xu Department of Gastroenterology the Affiliated Drum Tower Hospital of Nanjing University Medical SchoolJiangsuNanjing210002China. Department of Gastroenterology and Hepatology the Affiliated Jinling Hospital of Nanjing University Medical SchoolJiangsuNanjing210002China School of Medicine Northwest UniversityShaanxiXi’an710069China. Department of Gastroenterology Nanjing Drum Tower HospitalChinese Academy of Medical Sciences&Peking Union Medical CollegeJiangsuNanjing210008China.

Persistent hepatic cellular metabolic stress and liver inflammatory stimuli are key signatures of nonalcoholic steatohepatitis(NASH).DDX3X is a vital molecule involved in cell fate decisions in both pro-survival stress granule(SG)and pro-death NOD-like receptor family pyrin domain containing 3(NLRP3)inflammasome assembly in response to stress ***,the role of DDX3X in NASH remains *** characterized the cell type-specific roles of DDX3X in *** liver tissues from NASH patients and normal control subjects were collected to assess DDX3X expression and *** steatohepatitis models were constructed by feeding macrophage-specific DDX3X knockout(DDX3^(XΔMφ)),hepatocyte-specific DDX3X knockout(DDX3X^(Δhep)),and wild-type control(DDX3X^(fl/fl))mice a high-fat and high-cholesterol(HFHC)diet,a methionine-and choline-deficient(MCD)diet,and a high-fat/high-iron/high-fructose/high-cholesterol,low-methionine,and choline-deficient(HFHIHFHC-MCD)*** study demonstrated that DDX3X was predominantly expressed in macrophages and hepatocytes in control liver tissues,and its expression was down-regulated in patients or mice with *** to DDX3X^(fl/fl) littermates,DDX3^(XΔMφ)mice showed improved liver histology in nutritional steatohepatitis *** of macrophage DDX3X inhibited NLRP3 inflammasome-mediated pyroptosis,causing anti-inflammatory M2 polarization and alleviating hepatocyte steatohepatitic ***3X^(Δhep) mice developed marked steatohepatitis in multiple nutritional steatohepatitis models compared to DDX3X^(fl/fl) ***3X-deleted hepatocytes showed impaired SG assembly,leading to increased sensitivity and intolerance to metabolic stimulation and resultant *** conclusion,DDX3X plays opposite roles in different cell types during the progression of NASH.A better understanding of the cell-specific differences in the crosstalk between SG formation and NLRP3 activation is crucial for developing pr

关键词： NLRP3 impaired inhibited

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Prescribed time control based on the periodic delayed sliding mode surface without singularities

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Science China(Information Sciences) 2024年第7期67卷 256-270页

作者： Bin ZHOU Yi DING kang-kang ZHANG Guang-Ren DUAN Center for Control Theory and Guidance Technology Harbin Institute of Technology

In this paper, nonsingular prescribed-time control is studied based on periodic delayed sliding mode surfaces. Different from the existing sliding mode control, where either singularity problems may appear or the convergence time depends on the initial state, the proposed sliding mode control approaches can achieve prescribed-time convergence without singularity. The proposed nonsingular sliding mode control approaches can be applied to both second-order and high-order nonlinear systems with prescribed-time convergence. As applications of the proposed sliding mode control approaches, the control of hypersonic vehicle systems is revisited. Numerical simulations on the nonlinear model of the hypersonic vehicle system show the effectiveness of the proposed methods.

关键词： prescribed-time control smooth periodic delayed feedback sliding mode control high-order nonlinear systems hypersonic vehicle systems

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Progress in the application of polymer fibers in solid electrolytes for lithium metal batteries

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Journal of Energy Chemistry 2024年第5期92卷 26-42页

作者： Junbao kang Nanping Deng Bowen Cheng Weimin kang State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes School of Textile Science and EngineeringTiangong UniversityTianjin 300387China

Solid state lithium metal batteries(SSLMBs)are considered to be one of the most promising battery systems for achieving high energy density and excellent safety for energy storage in the ***,current existed solid-state electrolytes(SSEs)are still difficult to meet the practical application requirements of *** this review,based on the analysis of main problems and challenges faced by the development of SSEs,the ingenious application and latest progresses including specific suggestions of various polymer fibers and their membrane products in solving these issues are emphatically ***,the inherent defects of inorganic and organic electrolytes are pointed ***,the application strategies of polymer fibers/fiber membranes in strengthening strength,reducing thickness,enhancing thermal stability,increasing the film formability,improving ion conductivity and optimizing interface stability are discussed in detail from two aspects of improving physical structure properties and electrochemical ***,the researches and development trends of the intelligent applications of high-performance polymer fibers in SSEs is *** review intends to provide timely and important guidance for the design and development of polymer fiber composite SSEs for SSLMBs.

关键词： Composite solide lectrolytes Polymer fibers Solid-state lithium metal batteries Solid-stateel ectrolytes Nanofiber membranes

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Regulation of insect behavior by non-coding RNAs

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Science China(Life Sciences) 2024年第6期67卷 1106-1118页

作者： Jing He Le kang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing Institutes of Life Sciences Chinese Academy of SciencesBeijing 100101China College of Life Science Hebei UniversityBaoding 071002China

The adaptation of insects to environments relies on a sophisticated set of behaviors controlled by molecular and physiological *** the past several decades,accumulating studies have unveiled the roles of non-coding RNAs(nc RNAs)in regulating insect *** RNAs assume particularly pivotal roles in the behavioral plasticity of insects by rapidly responding to environmental *** RNAs also contribute to the maintenance of homeostasis of insects by fine-tuning the expression of target ***,a comprehensive review of nc RNAs'roles in regulating insect behaviors has yet to be ***,we present the recent progress in our understanding of how nc RNAs regulate various insect behaviors,including flight and movement,social behavior,reproduction,learning and memory,and *** refine the intricate mechanisms by which nc RNAs modulate the function of neural,motor,reproductive,and other physiological systems,as well as gene expression in insects like fruit flies,social insects,locusts,and ***,we discuss potential avenues for future studies in nc RNA-mediated insect behaviors.

关键词： ncRNAs insect behavior plasticity fine-tuning environmental adaptation

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Considerations of advanced aqueous batteries recycling:A perspective

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Journal of Energy Chemistry 2024年第6期93卷 46-54,I0002页

作者： Yun Zhao Yuqiong kang Hao Du Feiyu kang Baohua Li Institute of Materials Research Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina

*** Battery technology,serving as a basis for a rechargeable society,has developed rapidly over a century[1].The progress can be roughly divided into three stages,with the initial two mainly focusing on aqueous battery *** to 1859,research primarily focused on the conceptualization of batteries and the development of primary(non-rechargeable)cells[2].In the subsequent150 years,rechargeable battery technology emerged。

关键词： battery Battery primarily

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Boundless love:a German Professor Uli Schwarz in China

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Protein & Cell 2024年第8期15卷 553-558页

作者： Le kang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China

More than 20 years ago,an old German man embarked on a quest to explore the suburbs of Shanghai and the villages of jiangsu Province in search of antique Chinese *** was not a mere antique collector or aficionado of ancient furmiture,but a German scientist motivated by his profound love of Chinese *** name was Uli Schwarz(Fig.1),a distinguished German scientist who had dedicated the majority of his life to promoting cross-cultural scientific exchanges,an effort that left an indelible mark on the landscape of research collaborations between China and Germany.

关键词： Schwarz German landscape

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Dual-functional poly(2-methyl-2-oxazoline)/poly(2-(dimethylamine)ethyl methacrylate)mixed brushes with switchable protein adsorption and antibacterial properties

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Chinese Journal of Chemical Engineering 2024年第2期66卷 19-30页

作者： kang He Liangyu Zhu Yanmei Wang CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Herein,binary mixed brushes consisting of poly(2-methyl-2-oxazoline)(PMOXA)and poly(2-(dimethylamine)ethyl methacrylate)(PDMAEMA)with different chain lengths were fabricated by successive grafting of NH_(2)-terminated PMOXA and SH-terminated PDMAEMA onto polydopamine-anchored *** mixed-brush coating was characterized by variable-angle spectroscopic ellipsometry,X-ray photoelectron spectroscopy,Fourier transform infrared spectroscopy,zeta potential measurements,water contact angle,and atomic force *** mixed brushes showed tunable surface charge,wettability,and surface roughness,depending on the degree of PDMAEMA swelling under varying pH and ionic strength(Ⅰ).Then the adsorption behaviors of pepsin,bovine serum albumin(BSA),γ-globulin,and lysozyme,four very different proteins with regard to isoelectric point,on the mixed brushes coating were studied by using fluorescence microscopy and surface plasmon *** the chain length of PDMAEMA was about twice as long as PMOXA,the mixed brushes not only had high adsorption capacity for pepsin,BSA,and y-globulin but also had a desorption efficiency of 86.9%,87.1%,and 93.5%,*** is explained that electrostatic attraction between the protonated PDMAEMA and positively charged acidic proteins(pepsin and BSA,whose isoelectric points were below the pK_(a) of PDMAEMA)would drive the intensive adsorption(at pH 3,I=10^(-3)mol·L^(-1)for pepsin,and pH 5,I=10^(-5)mol·L^(-1)for BSA),while desorption was dominated by the hydrophilic PMOXA when PDMAEMA was shrinking(at pH 7,I=10^(-1)mol·L^(-1)for pepsin,and pH 9,I=10^(-1)mol·L^(-1)for BSA).Furthermore,the isoelectric precipitation led to the adsorption of neutral protein(γ-globulin,whose isoelectric point was near the pK_a of PDMAEMA)at pH 7,I=10^(-5)mol·L^(-1),while electrostatic repulsion and antifouling PMOXA triggered the desorption of y-globulin at pH 3,I-10^(-1)mol·L^(-1).However,alkaline protein(lysozyme,whose isoelectric point was higher than

关键词： Switchable conformation transition Controllable protein adsorption Mixed brushes Isoelectric point Antibacterial surface

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Thermodynamic model for deoxidation of liquid steel considering strong metal-oxygen interaction in the quasichemical model framework

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 988-1002页

作者： Yong-Min Cho Youn-Bae kang Graduate Institute of Ferrous and Eco Materials Technology Pohang University of Science and TechnologyPohangKyungbuk37673Rep.of Korea N.EX.T Hub POSCO HoldingsPohangKyungbuk37673Rep.of Korea Department of Materials Science and Engineering Pohang University of Science and TechnologyPohangKyungbuk37673Rep.of Korea

Herein,a thermodynamic model aimed at describing deoxidation equilibria in liquid steel was *** model provides explicit forms of the activity coefficient of solutes in liquid steel,eliminating the need for the minimization of internal Gibbs energy preliminarily when solving deoxidation *** elimination of internal Gibbs energy minimization is particularly advantageous during the coupling of deoxidation equilibrium calculations with computationally intensive approaches,such as computational fluid *** model enables efficient calculations through direct embedment of the explicit forms of activity coefficient in the computing *** proposed thermodynamic model was developed using a quasichemical approach with two key approximations:random mixing of metallic elements(Fe and oxidizing metal) and strong nonrandom pairing of metal and oxygen as nearest *** these approximations,the quasichemical approach yielded the activity coefficients of solutes as explicit functions of composition and temperature without requiring the minimization of internal Gibbs energy or the coupling of separate *** model was successfully applied in the calculation of deoxidation equilibria of various elements(Al,B,C,Ca,Ce,Cr,La,Mg,Mn,Nb,Si,Ti,V,and Zr).The limitations of the model arising from these assumptions were also discussed.

关键词： deoxidation equilibria thermodynamics quasichemical approach computational fluid dynamics

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