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Hypoglycemic effects of black brick tea with fungal growth in hyperglycemic mice model

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Food Science and Human Wellness 2022年第3期11卷 711-718页

作者： Wei Xu Yang Zhou Ling Lin dongyin yuan Yingqi Peng Li Li Wenjun Xiao Zhihua Gong Key Laboratory of Tea Science of Ministry of Education Hunan Agricultural UniversityChangsha 410128China National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients Hunan Agricultural UniversityChangsha 410128China Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients Changsha 410128China Hunan Baojiachong Tea Farm Co.Ltd. Yiyang 413500China

Dark tea(containing Eurotium cristatum)and black tea have hypoglycemic *** black brick tea with fungal growth is obtained from black tea by adding ***,followed by steaming,pressing,fungal growth,and ***,the hypoglycemic effects of black brick tea are still ***,we used black brick tea with fungal growth and black tea as raw materials to study their hypoglycemic effects in a hyperglycemic mice *** these types of black tea could lower the content of blood glucose and increase the content of hepatic glycogen by upregulating the proteins and m RNA expression of phosphatidylinositol-4,5-bisphosphate3-kinase,glycogen synthase,protein kinase B and phosphoinositidedependent protein kinase-1 and downregulating the protein and m RNA expression of glycogen synthase kinase 3β.These regulatory steps were followed by high activities of glutathione peroxidase and superoxide dismutase and low content of *** teas can promote blood glucose transport and absorption by upregulating the protein and m RNA expression of insulin receptor substrate-1 and glucose transporter-2 and stimulate glycolysis by upregulating the protein and m RNA expression of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase *** study suggests that the black brick tea was more effective than the black tea in terms of hypoglycemic.

关键词： Black tea Black brick tea(with fungal growth) High blood glucose Hypoglycemic effect

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茉莉花茶基底茶产品现状及发展对策

中国茶叶 2024年第5期46卷 71-76页

作者：张芬马进森温立香陈家献赵媛袁冬寅张栩浩欧淑琼彭靖茹黄寿辉曹如心广西壮族自治区亚热带作物研究所广西南宁530001 横州市茉莉花产业服务中心广西横州530300 横州市茉莉花研究所广西横州530300

通过调研全国最大的茉莉花茶加工基地——横州市的茉莉花茶基底茶产品的茶坯产地、香气、外形、质量等级等现状,分析了当前茉莉花茶基底茶产业中存在的专门加工工艺缺乏、标准体系缺失、加工粗放、产品质量参差不齐等问题,提出针对性的... 详细信息

通过调研全国最大的茉莉花茶加工基地——横州市的茉莉花茶基底茶产品的茶坯产地、香气、外形、质量等级等现状,分析了当前茉莉花茶基底茶产业中存在的专门加工工艺缺乏、标准体系缺失、加工粗放、产品质量参差不齐等问题,提出针对性的发展对策,为茉莉花茶基底茶及新式茶饮产业的健康发展提供思路。

关键词：新式茶饮茉莉花茶基底茶发展对策

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Robustness of the octupole collectivity in 144Ba within the cranking covariant density functional theory in 3D lattice

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Nuclear Science and Techniques 2024年第8期35卷 124-131页

作者： Ze‑Kai Li yuan‑yuan Wang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

The octupole deformation and collectivity in octupole double-magic nucleus 144Ba are investigated using the Cranking covariant density functional theory in a three-dimensional lattice *** reduced B(E3)transition probability is implemented for the first time in semiclassical approximation based on the microscopically calculated electric octupole *** available data,including the I-ωrelation and electric transitional probabilities B(E2)and B(E3)are well ***,it is shown that the ground state of 144Ba exhibits axial octupole and quadrupole deformations that persist up to high spins(I≈24h).

关键词： Octupole collectivity Cranking covariant density functional theory Rotational spectrum Electric transitional probabilities

广西杏仁香茶树种质资源试制不同茶类品质分析

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食品科学 2023年第14期44卷 291-297页

作者：彭靖茹温立香张芬陈家献袁冬寅欧淑琼广西壮族自治区亚热带作物研究所广西亚热带水果加工工程技术研究中心广西南宁530002

通过开展‘桂杏茶’不同适制性加工、理化检测及感官审评,研究不同加工工艺对内含物、滋味及香气成分差异。结果表明,‘桂杏茶’是低咖啡碱含量的特异茶树种质资源,酚氨比为11.8,更适制红茶。加工过程中,白茶和红茶的表没食子儿茶素含... 详细信息

通过开展‘桂杏茶’不同适制性加工、理化检测及感官审评,研究不同加工工艺对内含物、滋味及香气成分差异。结果表明,‘桂杏茶’是低咖啡碱含量的特异茶树种质资源,酚氨比为11.8,更适制红茶。加工过程中,白茶和红茶的表没食子儿茶素含量降为0,绿茶的儿茶素含量显著降低。感官审评结果显示,红茶和白茶杏仁香明显、浓郁,其他茶类无杏仁香。共检测出53种香气成分,可分为两种类型,每一类型的香气成分相同:第1类型包含原料、绿茶和乌龙茶,无杏仁香,有40种香气成分,香气主成分是β-芳樟醇、柠檬烯;第2类型包含白茶与红茶,杏仁香浓郁,有42种香气成分,香气主成分是苯甲醛。这些茶类共有香气成分28种,都含有苯甲醛,相对含量为红茶(61.97%)>白茶(31.73%)>乌龙茶(14.65%)>原料(4.24%)>绿茶(2.88%)。苯甲醛主要在萎凋、揉捻及发酵过程中产生,随着萎凋时间的延长,苯甲醛含量升高。苯甲醛含量越高的茶叶杏仁香越浓郁,苯甲醛是杏仁香香气形成的关键香气。

关键词：茶叶杏仁香香气成分苯甲醛适制性

Collective Molecular Machines: Multidimensionality and Reconfigurability

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Nano-Micro Letters 2024年第8期16卷 309-340页

作者： Bin Wang yuan Lu Department of Chemical Engineering Tsinghua UniversityBeijing 100084People’s Republic of China Key Laboratory of Industrial Biocatalysis Ministry of EducationTsinghua UniversityBeijing 100084People’s Republic of China

Molecular machines are key to cellular activity where they are involved in converting chemical and light energy into efficient mechanical *** the last 60 years,designing molecular structures capable of generating unidirectional mechanical motion at the nanoscale has been the topic of intense *** progress has been made,attributed to advances in various fields such as supramolecular chemistry,biology and nanotechnology,and ***,individual molecular machines are only capable of producing nanometer work and generally have only a single *** order to address these problems,collective behaviors realized by integrating several or more of these individual mechanical units in space and time have become a new *** this review,we comprehensively discuss recent developments in the collective behaviors of molecular *** particular,collective behavior is divided into two *** is the appropriate integration of molecular machines to efficiently amplify molecular motions and deformations to construct novel functional *** other is the construction of swarming modes at the supramolecular level to perform nanoscale or microscale *** discuss design strategies for both modes and focus on the modulation of features and ***,in order to address existing challenges,the idea of transferring experience gained in the field of micro/nano robotics is presented,offering prospects for future developments in the collective behavior of molecular machines.

关键词： Molecular machines Collective control Collective behaviors DNA Biomolecular motors

MAUN:Memory-Augmented Deep Unfolding Network for Hyperspectral Image Reconstruction

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1139-1150页

作者： Qian Hu Jiayi Ma yuan Gao Junjun Jiang Yixuan yuan Electronic Information School Wuhan UniversityWuhan 430072China School of Computer Science and Technology Harbin Institute of TechnologyHarbin 150001China Department of Electronic Engineering Chinese University of Hong KongHong Kong 999077China

Spectral compressive imaging has emerged as a powerful technique to collect the 3D spectral information as 2D *** algorithm for restoring the original 3D hyperspectral images(HSIs)from compressive measurements is pivotal in the imaging *** approaches painstakingly designed networks to directly map compressive measurements to HSIs,resulting in the lack of interpretability without exploiting the imaging *** some recent works have introduced the deep unfolding framework for explainable reconstruction,the performance of these methods is still limited by the weak information transmission between iterative *** this paper,we propose a Memory-Augmented deep Unfolding Network,termed MAUN,for explainable and accurate HSI ***,MAUN implements a novel CNN scheme to facilitate a better extrapolation step of the fast iterative shrinkage-thresholding algorithm,introducing an extra momentum incorporation step for each iteration to alleviate the information ***,to exploit the high correlation of intermediate images from neighboring iterations,we customize a cross-stage transformer(CSFormer)as the deep denoiser to simultaneously capture self-similarity from both in-stage and cross-stage features,which is the first attempt to model the long-distance dependencies between iteration *** experiments demonstrate that the proposed MAUN is superior to other state-of-the-art methods both visually and *** code is publicly available at https://***/HuQ1an/MAUN.

关键词： Deep folding iteration

Gradient microstructure and superior strength-ductility synergy of AZ61 magnesium alloy bars processed by radial forging with different deformation temperatures

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Journal of Materials Science & Technology 2024年第3期170卷 65-77页

作者： Jingfeng Zou Lifeng Ma Yanchun Zhu Ling Qin yuan yuan School of Mechanical Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Heavy Machinery Engineering Research Center of the Ministry Education Taiyuan University of Science and TechnologyTaiyuan 030024China Department of Engineering University of HullCottingham RdHull HU67RXUK National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

Gradient microstructure modification is a cost-efficient strategy for high strength without compromising ductility,which is urgently needed in the fundamental science of engineering *** this study,heterogeneous structures of AZ61 alloy bars with anisotropic gradients(with different grain size distributions from the surface to the center)were observed to exhibit strong strength-ductility synergies under different deformation tem *** results reveal that the grain refinement process under mediumlow temperature deformation conditions(≤350℃)consists of four transition stages along the radial direction,i.e.,twin activations and deformation band formations,dislocation cells and pile-ups,ultrafine sub-grains,and randomly orientated quasi-micron *** deformation temperatures have a great influence on twin activations and deformation band formations,and the high temperature can easily provoke the initiation of non-basal *** deformation bands were determined as a primary nucleation site due to their highly unstable dislocation hindrance *** in combination with the Radial forging(RF)deformation process,the differences of dynamic precipitates can be attributed to microstructural difference and solubility limit of Al at different tem *** summarizing the tensile test results,the sample forged at 350℃exhibited the best strength-ductility synergy,exhibiting the highest elongation(EL)of 23.2%with a 251 MPa yield strength(YS)and 394 MPa ultimate tensile strength(UTS)in center region,and combined with the highest strength value of 256 MPa YS and 420 MPa UTS in the center region,while the EL was slightly degraded to 19.8%.

关键词： Gradient microstructure Radial forging Strength-ductility synergy Magnesium alloy Strengthening mechanism

Pyrolysis Empirical Modeling of Polyester Glass Fiber Reinforced Plastics Using Sestak-Berggren Model Method

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Journal of Thermal Science 2024年第2期33卷 725-738页

作者： NAN Wei JI Wenhui yuan Yanping yuan Zhongyuan SUN Yong School of Mechanical Engineering Southwest Jiaotong UniversityChengdu610031China CRRC Changchun Railway Vehicles Co. LtdChangchun130062China

Polyester Glass Fiber Reinforced Plastic(Polyester GFRP),a thermosetting plastic comprised of glass fiber and polyester polymer compounds,is extensively utilized in high-speed *** its pyrolysis mechanism is crucial as it significantly influences the combustion characteristics and fire safety ***,kinetic research on polyester GFRP primarily focuses on employing the Coats-Redfern method to derive a theoretical kinetic ***,the pyrolysis process of polyester GFRP is complex and the aforementioned theoretical model fails to accurately describe the pyrolysis ***,this study seeks to utilize the Sestak and Berggren(SB) model as a methodological approach to reveal the complex reaction mechanism during the pyrolysis *** on thermogravimetric analysis,the entire pyrolysis process of polyester GFRP is divided into two primary ***,model-free methods are employed to ascertain the activation energy and pre-exponential *** results show that the fitted empirical models of the two main pyrolysis stages are f(α)=(1-α)^(1.47)[-ln(1-α)]^(1.50) and f(α)=(1-α)^(1.77)[-ln(1-α)]^(1.72),*** predicted results are in good agreement with experimental data under different heating rates,which indicates that the empirical model can sufficiently describe the pyrolysis process of polyester GFRP.

关键词： polyester GFRP model-fitting methods empirical models pyrolysis

Pseudomonotonicity of Nonlinear Transformations on Euclidean Jordan Algebras

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 192-204页

作者： yuan-Min Li School of Mathematics and Statistics Xidian UniversityXi’an710071China

In this paper, we have introduced the concepts of pseudomonotonicity properties for nonlinear transformations defined on Euclidean Jordan algebras. The implications between this property and other P-properties have been studied. More importantly, we have solved the solvability problem of the nonlinear pseudomonotone complementarity problems over symmetric cones.

关键词： Euclidean Jordan algebra nonlinear transformation complementarity problem pseudomonotone