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Abscisic acid-mediated cytosolic Ca^(2+) modulates triterpenoid accumulation of Ganoderma lucidum

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第12期24卷 1174-1179页

作者： Meilin CUI yitao Zhao Xiuhong ZHANG Wei zhao College of Food Science Shanxi Normal UniversityTaiyuan 030031China

Ganoderma lucidum is a mushroom widely used for its edible and medicinal properties.Primary bioactive constituents of G.lucidum are ganoderic triterpenoids(GTs),which exhibit important pharmacological activity.Abscisic acid(ABA),a plant hormone,is associated with plant growth,development,and stress responses.ABA can also affect the growth,metabolism,and physiological activities of different fungi and participates in the regulation of the tetracyclic triterpenes of some plants.Our findings indicated that ABA treatment promoted GT accumulation by regulating the gene expression levels(squalene synthase(sqs),3-hydroxy-3-methylglutaryl-CoA reductase(hmgr),and lanosterol synthase(ls)),and also activated cytosolic Ca2 channels.Furthermore,under ABA mediation.

关键词： properties promoted finding

Zn_(x)Zr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

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Frontiers of Chemical Science and Engineering 2023年第4期17卷 404-414页

作者： Junjun Cheng yitao Zhao Guohao Xu Peng Zhang Xuedong Zhu Fan Yang Engineering Research Center of Large-Scale Reactor Engineering and Technology Ministry of EducationEast China University of Science&TechnologyShanghai 200237China

Alkylation of benzene with carbon dioxide and hydrogen to produce toluene and xylene could increase the added-value of surplus benzene as well as relieve environmental problems like green-house effect.In this work,the alkylation benzene with carbon dioxide and hydrogen reaction was proceeded by using the mixture of zinc-zirconium oxide and HZSM-5 as bifunctional catalyst.The equivalent of Zn/Zr=1 displays the best catalytic performance at 425℃ and 3.0 MPa,and benzene conversion reaches 42.9%with a selectivity of 90%towards toluene and xylene.Moreover,the carbon dioxide conversion achieves 23.3%and the carbon monoxide selectivity is lower than 35%,indicating that more than 50%carbon dioxide has been effectively incorporated into the target product,which is the best result as far as we know.Combined with characterizations,it indicated that the Zn and Zr formed a solid solution under specific conditions(Zn/Zr=1).The as-formed solid solution not only possesses a high surface area but also provides a large amount of oxygen vacancies.Additionally,the bifunctional catalyst has excellent stabilities that could keep operating without deactivation for at least 80 h.This work provides promising industrial applications for the upgrading of aromatics.

关键词： carbon dioxide alkylation of benzene solid solution catalyst bifunctional catalyst

Anti-oxidant anti-inflammatory and antibacterial tannin-crosslinked citrate-based mussel-inspired bioadhesives facilitate scarless wound healing

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Bioactive Materials 2023年第2期20卷 93-110页

作者： Keke Wu Meimei Fu yitao Zhao Ethan Gerhard Yue Li Jian Yang Jinshan Guo Department of Histology and Embryology NMPA Key Laboratory for Safety Evaluation of CosmeticsSchool of Basic Medical SciencesGuangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversitySouthern Medical UniversityGuangzhouChina Department of Biomedical Engineering Pennsylvania State UniversityUniversity ParkPA16802USA

The revolutionary role of tissue adhesives in wound closure,tissue sealing,and bleeding control necessitates the development of multifunctional materials capable of effective and scarless healing.In contrast to the use of traditionally utilized toxic oxidative crosslinking initiators(exemplified by sodium periodate and silver nitrate),herein,the natural polyphenolic compound tannic acid(TA)was used to achieve near instantaneous(90%bacterial death upon near-infrared(NIR)irradiation).In vivo evaluation in both an infected full-thickness skin wound model and a rat skin incision model demonstrated that 3A-TCMBAs+NIR treatment could promote wound closure and collagen deposition and improve the collagen Ⅰ/Ⅲ ratio on wound sites while simultaneously inhibiting the expression of pro-inflammatory cytokines.Further,phased angiogenesis was observed via promotion in the early wound closure phases followed by inhibition and triggering of degradation&remodeling of the extracellular matrix(ECM)in the late stage(supported by phased CD31(platelet endothelial cell adhesion molecule-1)PDGF(platelet-derived growth factor)and VEGF(vascular endothelial growth factor)expression as well as elevated matrix metalloprotein-9(MMP-9)expression on day 21),resulting in scarless wound healing.The significant convergence of material and bioactive properties elucidated above warrant further exploration of 3A-TCMBAs as a significant,new class of bioadhesive.

关键词： Anti-oxidant Hydrogen bond crosslinking Phased angiogenesis Scarless wound healing Tannic acid

Prognostic factors of Guillain-Barré syndrome: a 111-case retrospective review

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Chinese Neurosurgical Journal 2018年第3期4卷 145-153页

作者： yitao Zhang Yanyin zhao Yi Wang Department of neurology Huashan Hospital affiliated to Fudan University12 M.Wulumuqi RdJina’an DistrictShanghaiPeople’s Republic of China

Background: To identify the predictive factors associated with worse prognosis in the Guillain-Barré syndrome (GBS), which can be helpful to fully evaluate the disease progression and provide proper treatments. Methods: Clinical data of 111 GBS patients who were diagnosed from 2010 to 2015 were collected and retrospectively analyzed. Results: Patients with diabetes (P=0.031), high blood pressure at admission (P=0.034), uroschesis (P=0.028), fever (P<0.001), ventilator support (P<0.001) during hospitalization, disorder of consciousness (p=0.007) and absence of preceding respiratory infection(P=0.016) were associated with worse outcome at discharge, while abnormal sensation, ataxia, weakness and decrease of tendon reflex seemed not correlated with the Medical Research Council(MRC) score at discharge. Compared with the subtype of acute inflammatory demyelinating polyneuropathy, prognosis of Miller-Fisher syndrome (p<0.001) and cranial nerve variant (p<0.038) were better, but prognosis of acute motor axonal neuropathy(AMAN) was worse (p<0.032). Laboratory examinations at admission showed that hyperglycemia (P=0.002), high leukocyte count (P=0.010), hyperfibrinogenemia (P=0.001), hyponatremia (P=0.020), hypoalbuminemia (P=0.005), abnormal hepatic (P=0.048) and renal (P=0.009) functions were associated with poorer prognosis at discharge, while albuminocytologic dissociation in cerebrospinal fluid, GM1 and GQ1b antibody showed no correlation with the MRC score at discharge. γ-Globulin and glucocorticoid therapies showed no difference in the MRC score at the discharge. Conclusions: AMAN, diabetes, high blood pressure, uroschesis, high body temperature, ventilator support, consciousness disorder, absence of upper respiratory tract preceding infection, hyperglycemia, hyponatremia, hypoalbuminemia, high leukocyte count, hyperfibrinogenemia, abnormal hepatic and renal function were demonstrated as poor prognostic factors.

关键词： Guillain-Barre syndrome outcome Prognostic factors

超材料混凝土单胞骨料的有阻尼自由振动特性研究

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振动与冲击 2022年第4期41卷 239-245,269页

作者：韩洁路国运赵一涛太原理工大学土木工程学院太原030024 太原市政工程勘测设计院有限公司太原030002

超材料概念的提出激发了功能混凝土的研究热潮,超材料混凝土的振动研究也成为热点之一。基于one-dimensional spring-mass system模型,建立了单胞骨料有阻尼自由振动的三维振动模型,模型中软涂层和砂浆均用弹簧等效代替,并计算了等效长... 详细信息

超材料概念的提出激发了功能混凝土的研究热潮,超材料混凝土的振动研究也成为热点之一。基于one-dimensional spring-mass system模型,建立了单胞骨料有阻尼自由振动的三维振动模型,模型中软涂层和砂浆均用弹簧等效代替,并计算了等效长度、等效刚度和等效阻尼。以单胞骨料为研究对象,用达朗贝尔原理导出有阻尼自由振动的非线性控制方程,获得系统的固有频率和振动解。用MATLAB软件编程进行算例分析,讨论初始条件、骨料内部尺寸及软涂层弹性模量等参数对固有频率和振动特性的影响。算例分析表明:非线性振动与线性振动中的无阻尼固有频率和有阻尼固有频率间的关系并不一致;阻尼对非线性振动固有频率的影响比线性振动的大;初速度对初相位的影响(非线性)比初始位移的大("类线性"),初始条件既影响振幅,又影响固有频率,也会影响超材料混凝土抗冲击能力。减幅系数η随初始速度、软涂层弹性模量的增大而减小,随软涂层厚度的增大而增大,这可通过减小初始速度、增大软涂层弹性模量、增加重核的大小等方式降低减幅系数对超材料混凝土结构的影响。这对超材料混凝土抵抗高频荷载和冲击荷载的研究有工程指导价值。

关键词：单胞骨料有阻尼自由振动固有频率

Tailoring Mg^(2+)Solvation Structure in a Facile All-Inorganic[Mg_(x)Li_(y)Cl2_(x+y)·nTHF]Complex Electrolyte for High Rate and Long Cycle-Life Mg Battery

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Energy & Environmental Materials 2023年第2期6卷 152-158页

作者： Haiyan Fan Xinxin Zhang Yuxing zhao Jianhua Xiao Hua Yuan Guang Wang yitao Lin Jifang Zhang Ludi Pan Ting Pan Yang Liu Yuegang Zhang State Key Laboratory of Low-Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China

A high-performance all-inorganic magnesium-lithium chloride complex(MLCC)electrolyte is synthesized by a simple room-temperature reaction of LiCl with MgCl_(2) in tetrahydrofuran(THF)solvent.Molecular dynamics simulation,density functional theory calculation,Raman spectroscopy,and nuclear magnetic resonance spectroscopy reveal that the formation of[Mg_(x)Li_(y)Cl_(2x+y)·nTHF]complex solvation structure significantly lowers the coordination number of THF in the first solvation sheath of Mg^(2+),which significantly enhances its de-solvation kinetics.The MLCC electrolyte presents a stable electrochemical window up to 3.1 V(vs Mg/Mg^(2+))and enables reversible cycling of Mg metal deposition/stripping with an outstanding Coulombic efficiency up to 99%at current densities as high as 10 mA cm^(-2).Utilizing the MLCC electrolyte,a Mg/Mo_(6)S_(8) full cell can be cycled for over 10000 cycles with a superior capacity retention of 85 mA h g^(-1) under an ultrahigh rate of 50 C(1 C=128.8 mA g^(-1)).The facile synthesis of highperformance MLCC electrolyte provides a promising solution for future practical magnesium batteries.

关键词： cycle life electrolyte Mg battery solvation structure

Data Room Management System Based on Target Detection Algorithm

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Data Room Management System Based on Target Detection Algori...

Performance Improvement of TFRC Congestion Control Algorithm in Wireless Network Streaming Media Transmission

第40届中国控制会议

作者： Zhicheng zhao Weihua Cao Kang Li yitao Chen School of Automation China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education

In recent years,streaming media services have been widely used in data room management systems.In order to record the user operations,host machine alarms and reminder in real time,target detection algorithms for streaming media have played an important role.Conventional target detection methods,limited by detection speed,are not suitable for such real-time application.So,in this paper,we applies SSD（Single Shot MultiBox Detector） algorithm to data room management system.Firstly,we constructs a host operating image data set,and then perform data amplification by adding noise and rotation.Secondly,the SSD model is used to train a model.Finally,after obtaining the target detection results,the NMS（Non-Maximum Suppression）algorithm is used to avoid the redundant detection frame.At the same time,some improvement measures are put forward to solve the problem of small target,leading to the difficulty of feature extraction and low detection accuracy.The experimental results demonstrate that the model can detect and track the target better in the video and meet the requirements of the real-time performance and accuracy of the system.

关键词： target detection data room management system streaming media SSD

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Performance Improvement of TFRC Congestion Control Algorithm...

Ca and Sr co-doping induced oxygen vacancies in 3DOM La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts for boosting low-temperature oxidative coupling of methane

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作者： Kang Li Yan Yuan yitao Chen Zhicheng zhao School of Automation China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education

This paper studies a rate-based TCP-Friendly Rate Control（TFRC） mechanism, which is widely used in multimedia real-time services, and analyzes its basic workflow, throughput model and calculation of key parameters. In order to meet the demand of real-time service for network transmission, the bandwidth-delay product（BDP） is applied to the congestion control of TFRC as the network congestion warning signal, and the improved TFRC algorithm is proposed. The simulation results show that this method can achieve good results in the network transmission of real-time services, and its friendliness and smoothness are improved to a certain extent.

关键词： Real-time multimedia application TFRC Bottleneck bandwidth and round-trip time（BBR） Wireless network

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Journal of Energy Chemistry 2024年第4期91卷 331-344页

作者： Tongtong Wu Yuechang Wei Jing Xiong yitao Yang Zhenpeng Wang Dawei Han Zhen zhao Jian Liu State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing 102249China Key Laboratory of Optical Detection Technology for Oil and Gas China University of PetroleumBeijing 102249China

It is urgent to develop catalysts with application potential for oxidative coupling of methane(OCM)at relatively lower temperature.Herein,three-dimensional ordered macro porous(3 DOM)La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)(A_(2)B_(2)O_(7)-type)catalysts with disordered defective cubic fluorite phased structure were successfully prepared by a colloidal crystal template method.3DOM structure promotes the accessibility of the gaseous reactants(O2and CH4)to the active sites.The co-doping of Ca and Sr ions in La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts improved the formation of oxygen vacancies,thereby leading to increased density of surface-active oxygen species(O_(2)^(-))for the activation of CH4and the formation of C2products(C2H6and C2H4).3DOM La_(2-x)Sr_(x)Ce_(2-y)CayO_(7-δ)catalysts exhibit high catalytic activity for OCM at low temperature.3DOM La1.7Sr0.3Ce1.7Ca0.3O7-δcatalyst with the highest density of O_(2)^(-)species exhibited the highest catalytic activity for low-temperature OCM,i.e.,its CH4conversion,selectivity and yield of C2products at 650℃are 32.2%,66.1%and 21.3%,respectively.The mechanism was proposed that the increase in surface oxygen vacancies induced by the co-doping of Ca and Sr ions boosts the key step of C-H bond breaking and C-C bond coupling in catalyzing low-temperature OCM.It is meaningful for the development of the low-temperature and high-efficient catalysts for OCM reaction in practical application.

关键词： 3DOM catalysts Ca ions Sr ions Low-temperature oxidative couplingof methane Oxygen vacancies O_(2)^(-) species