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Regulate electric double layer for one-step synthesize and modulate the morphology of(oxy)hydroxides

Nano Research 2024年第5期17卷 3675-3683页

作者： Jiaxin Liu Yue Shi Yanli Gu Zheng Lv Liang Zhao Yu Yang tianrong Zhan Jianping Lai lei Wang State Key Laboratory Base of Eco-Chemical Engineering International Science and Technology Cooperation Base of Eco-chemical Engineering and Green ManufacturingCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China

FeOOH have received considerable attention due to their natural abundance and *** the significant progress achieved,the one-step synthesis of integrated FeOOH is still a major ***,the current research on FeOOH catalyst still suffers from the unclear mechanism of controlling ***,density functional theory(DFT)calculations and X-ray photoelectron spectroscopy(XPS)demonstrated the strong electron-capturing and hydrogen absorption ability of Co in FeOOH,which further promotes the formation and stabilization of *** used a one-step electrodeposition method to synthesize Co introduced FeOOH integrated electrocatalyst and propose to introduce ions with different valence states to regulate the morphology of FeOOH by precise modulation of electric double layer(EDL)composition and *** prepared Co-FeOOH-K^(+)has a larger electrochemically active surface area(ECSA)(325 cm^(2))and turnover frequency(TOF)value(0.75 s^(-1)).In the electrochemical experiments of an alkaline anion exchange membrane electrolyzer,Co-FeOOH-K^(+)shows better oxygen evolution performance than commercial RuO_(2) under industrial production conditions and has good industrial application prospects.

关键词： integrated(oxy)hydroxides electrodeposition electric double layer(EDL) oxygen evolution reaction(OER) morphology regulation

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Teaching Reform of Basic Medicine Curriculum by Integrating the Perspective of Curriculum Civics and Politics in the Context of Healthy China

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Journal of Contemporary Educational Research 2024年第4期8卷 132-137页

作者： Jiamei Wu Baxin Wang tianrong Xing Yanan Su lei Liu School of Basic Medical Sciences Jiamusi UniversityJiamusi 154002Heilongjiang ProvinceChina Baicheng Medical College Baicheng 137000Jilin ProvinceChina The First Hospital Attached to Jiamusi University Jiamusi 154002 Heilongjiang ProvinceChina

Basic medicine is the foundation of basic knowledge of medical science,life science,and natural science,and is the basis for training medical *** can help students correctly understand the relationship between disease and health,and is of great significance under the perspective of the Healthy China ***,there are still some deficiencies in the current teaching,and insufficient attention has been paid to civics and ***,it is necessary to carry out curriculum reform in order to enable students to better understand medical knowledge and master medical skills,to ensure the development of medical education,and to play an important role in basic *** study combines the necessity of curriculum reform under the perspective of civics and politics and puts forward a teaching reform strategy suitable for the development of contemporary medicine to provide a direction for the educational development of basic medicine.

关键词： Healthy China Curriculum civics and politics Basic medicine

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Continuous-flow electrosynthesis of urea and oxalic acid by CO_(2)-nitrate reduction and glycerol oxidation

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Chinese Journal of Catalysis 2024年第8期63卷 270-281页

作者： Shuanglong Zhou Yue Shi Yu Dai tianrong Zhan Jianping Lai lei Wang Key Laboratory of Eco-Chemical Engineering Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life ScienceTaishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina

Urea and oxalic acid are critical component in various chemical manufacturing ***,achieving simultaneous generation of urea and oxalic acid in a continuous-flow electrolyzer is a ***,we report a continuous-flow electrolyzer equipped with 9-square centime-ter-effective area gas diffusion electrodes(GDE)which can simultaneously catalyze the glycerol oxidation reaction in the anode region and the reduction reaction of CO_(2)and nitrate in the cathode region,producing oxalic acid and urea at both the anode and cathode,*** current density at low cell voltage(0.9 V)remained above 18.7 mA cm^(-2)for 10 consecutive electrolysis cycles(120 h in total),and the Faraday efficiency of oxalic acid(67.1%)and urea(70.9%)did not *** and theoretical studies show that in terms of the formation of C-N bond at the cathode,Pd-sites can provide protons for the hydrogenation process of CO_(2)and NO3-,Cu-sites can promote the generation of*COOH and Bi-sites can stabilize**** addition,in terms of glycerol oxidation,the introduction of Cu and Bi into Pd metallene promotes the oxidation of hydroxyl groups and the cleavage of C-C bond in glycerol molecules,respectively.

关键词： Urea Oxalic acid CO_(2) C-N bond Metallene

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Longan Aril Reverses H2O2 Cytotoxicity in PC12 Cells via RAS/MEK/ERK Signaling Pathway

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Medicinal Plant 2021年第2期12卷 54-59页

作者： tianrong lei Yang CAO Chang LI Jianghua ZHANG Honghe XIAO Cheng SONG Hongyan LI Pharmaceutical College Liaoning University of Traditional Chinese Medicine Dalian 116600 China Dalian Huaxin Physicochemical Testing Centre Ltd. Dalian 116600 China College of Light Industry and Chemical Engineering Dalian Polytechnic University Dalian 116034 China Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications Liaoning University of Traditional Chinese Medicine Shenyang 110032 China

[Objectives]To explore the neuroprotective effects and mechanism of Longan Aril(LA)effective parts on PC12 cells injured by H2O2.[Methods]The neuroprotective effects of LA were evaluated by the cell viability,SOD and MDA content,apoptosis assay and relative protein expression of Aβand *** neuroprotective mechanism of LA was studied by using metabolomics and network pharmacology,and the expressions of RAS/MEK/ERK signaling pathway-related proteins were detected by western blotting.[Results]LA could improve the cell survival rate and SOD content,and reduce apoptosis and expression of Aβand *** of RAS/MEK/ERK signaling pathway is a possible mechanism of LA neuroprotective effects.[Conclusions]LA has a neuroprotective effects in vitro and be likely to inhibit the process of AD by inhibition of RAS/MEK/ERK signalling pathway.

关键词： Longan Aril(LA) RAS/MEK/ERK pathway Alzheimer's disease(AD) Neuroprotective effects

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Synthesis of Holey Graphitic Carbon Nitride with Highly Enhanced Photocatalytic Reduction Activity via Melamine-cyanuric Acid Precursor Route

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Chemical Research in Chinese Universities 2020年第6期36卷 1024-1031页

作者： QI Yinhong XU Jixiang WANG Chao ZHAN tianrong WANG lei Key Laboratory of Eco-chemical Engineering Ministry of EducationState Laboratory of Inorganic Synthesis and Applied ChemistryCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042P.R.China

In this work,holey graphitic carbon nitride(HCN)was prepared by one-step thermal polymerization of hydrothermal product of melamine and then loaded with Ni/MoO2(NiMo)cocatalyst obtained by NaBHa reduction *** obtained material was used for photocatalytic production of H2 from water reduction and H202 production from 02 *** best photocatalyst(1%NiMo/HCN)exhibited a Hz evolution rate of 8.08 umolh while no H2 was detected over 1%NiMo-modifed bulk g-C3N4(BCN)under visible light ***,this rate is 1.7 times higher than that of 1%Pt-modified *** 1%NiMo/HCN catalyst also exhibited the highest H20z production activity with a value of 6.13 umol/*** enhancement was ascribed to the efficient charge carrier separation and migration,which were promoted by the large specific surface area and pore volume of HCN and the synergy between MoO2 and *** proposed method to obtain HCN is expected to open up new ways in development of highly-active HCN-based photocatalysts for photocatalytic reduction reactions.

关键词： Holey g-C3N4 Ni/MoO2 nanoparticle Photocatalysis H2 evolution H2O2 production

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Real-time Synchronization Method Based on Dual Ring Fieldbus in CNC System

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Chinese Journal of Mechanical Engineering 2014年第1期27卷 111-121页

作者： YANG lei LIN Hu ZHENG Liaomo YUE Dongfeng GAO tianrong WANG Feng School of Computer Science and Technology University of Science and Technology of China Shenyang Institute of Computing Technology Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

As the popularization of dual ring fieldbus, the optimized dual ring synchronization methods are still in short. The current synchronization methods are generally established in traditional industrial fieldbus, in which transmission is commonly considered in single track, the two-way transmitting cannot take full effect, and would result in unwanted idle load on equipment lines. In stamp-transferring part, the synchronizing algorithm is not properly processed to diminish the latency, so the real-time performance of entire system cannot be ensured. To support the synchronization control of stations in the CNC system, a real-time time synchronization method for dual ring fieldbus in the CNC system is designed in this paper. In this method a synchronizing message transmission scheme based on dual ring architecture and the synchronization algorithm between master and secondary stations are integrated. In the scheme, the clock models of both master and secondary stations are optimized with corresponding modules and the stamp data transmission based on the dual ring fieldbus is devised exclusively, so the transmitting efficiency improves with less idle work. In the algorithm, all the secondary stations can accomplish the consistent state with master station by updating clock discrepancy information in one communication cycle, and it takes the advantage of two-way transmitting and makes the best use of dual ring structure, so the real-time performance of the system can be promoted while retaining the precision of synchronization. To evaluate the performance, the costs of the method and errors during synchronizing are noted and analyzed based on the actual running environment in the industrial fieldbus. The results show that it reduces communication cost and ensures the smoothness of the system with low lag effects under heavy load. The proposed time synchronization method optimizes the architecture of sync message transmission in dual ring fieldbus, and improves the effici

关键词： time synchronization dual ring fieldbus real-time system CNC system

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气相色谱-氢火焰离子化测定脂肪酸甲酯的响应机理与定量规律

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食品科学 2024年第13期45卷 49-57页

作者：崔华玲杨慧孙丽华叶倩丁晨红王威利季天荣马蕾曾坤宏殷秋妙广东省农业科学院农业质量标准与监测技术研究所农业农村部农产品质量安全检测与评价重点实验室广东广州510640 广东省种植业标准化技术委员会广东广州510640 广东省农业标准化协会广东广州510640 广州优百特科技有限公司广东广州511370

针对国内外现行标准中气相色谱-氢火焰离子化检测器(gas chromatography-flame ionization detector,GCFID)测定脂肪酸甲酯(fatty acid methyl esters,FAME)定量方法的不足,本实验通过理论推导和实验验证,从仪器、色谱柱、分流比、标准... 详细信息

针对国内外现行标准中气相色谱-氢火焰离子化检测器(gas chromatography-flame ionization detector,GCFID)测定脂肪酸甲酯(fatty acid methyl esters,FAME)定量方法的不足,本实验通过理论推导和实验验证,从仪器、色谱柱、分流比、标准物质方面系统研究利用GC-FID分析37种FAME的响应规律、理论模型及实验干扰因素,提出“质量系数”和“关联因子”概念,揭示实验关联因子(experimental relevance factors,FF_(E))和理论关联因子(theoretical relevance factors,FF_(T))的函数关系和等值性条件,并经多个实验证实了关联因子的稳定性,发现当脂肪酸碳数大于10时,可充分利用理论质量系数(theoretical quality coefficient,QC_(T))和FFT对FAME进行相对或绝对定量;当脂肪酸碳数小于10时,可以通过现配FAME标准物质等方法精确测定实验质量系数(experimental quality coefficient,QC_(E))和实验关联因子FFE,并用此校正FAME的量进行定量,不仅能够提高定量结果的准确性,而且能够增加标准物质的使用时效以及节省标准物质的使用量。

关键词：脂肪酸甲酯甲酯化气相色谱-氢火焰离子化检测质量系数关联因子

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Amorphous/2H-MoS_(2) nanoflowers with P doping and S vacancies to achieve efficient pH-universal hydrogen evolution at high current density

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Science China Chemistry 2022年第9期65卷 1829-1837页

作者： Yue Shi Dan Zhang Hongfu Miao Xueke Wu Zuochao Wang tianrong Zhan Jianping Lai lei Wang Key Laboratory of Eco-chemical Engineering Key Laboratory of Optic-electric Sensing and Analytical Chemistry of Life ScienceTaishanScholar Advantage and Characteristic Discipline Team of Eco Chemical Process and TechnologyCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China

Molybdenum disulfide(MoS_(2))has become a competitive candidate for efficient and economical hydrogen evolution reaction(HER).Compared with 1T-MoS_(2),2H-MoS_(2) possesses exceptional thermodynamic stability but still suffers from low active site density,poor conductivity,and weak hydrogen bonding in the wide pH ***,2H-MoS_(2) nanoflowers with phosphorus doping,sulfur vacancies and crystalline-amorphous heterojunction were synthesized via phosphorus-assisted rapid calcination *** from the cooperative interaction of multiple strategies,the prepared 2H-MoS_(2) nanoflowers firstly achieve efficient pH-universal HER at high current *** results show that in alkaline,acidic,and neutral media,MoS_(2)-P2 requires only 332,302,and 417 mV to drive the current density of 500 mA cm^(−2) and obtains 932,1100,and 472 mA cm^(−2) at the potential of−0.4 V ***,***,MoS_(2)-P2 shows excellent stability of low and high current density in the full pH range.

关键词： MoS_(2)nanoflowers defects dopants heterojunction hydrogen evolution reaction

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延伸斯金纳程序教学理论在病理生理学教学中的应用

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中国继续医学教育 2024年第8期16卷 1-5页

作者：吴佳梅王柏欣邢天容苏亚楠刘蕾佳木斯大学基础医学院黑龙江佳木斯154002 白城医学高等专科学校基础医学院吉林白城137000 佳木斯大学附属第一医院妇产科黑龙江佳木斯154002 佳木斯大学附属第一医院医学教科部黑龙江佳木斯154002

斯金纳在程序性条件作用学说和强化理论基础之上创建了程序性教学法,该教学法是一种基于个性化学习的方法,有其独特的教学理论和原则。病理生理学是一门侧重于从代谢和功能变化角度研究疾病的病因、发病机制和转归的医学基础学科,其授... 详细信息

斯金纳在程序性条件作用学说和强化理论基础之上创建了程序性教学法,该教学法是一种基于个性化学习的方法,有其独特的教学理论和原则。病理生理学是一门侧重于从代谢和功能变化角度研究疾病的病因、发病机制和转归的医学基础学科,其授课知识点之间逻辑性较强,不易理解。文章以病理生理学教学重点章节酸碱平衡紊乱为例,围绕学习目标要求,运用程序性教学法的理论和教学原则,设计酸碱平衡紊乱章节的程序性教学法的具体实施步骤,体现了程序性教学法的逻辑关联性强、自主性和层层递进式的学习特征,促进了学生对知识结构的梳理及对课程知识难点和重点的扎实掌握,探索了程序性教学法在病理生理学教学中应用的科学性和可操作性,为提高病理生理学教学效果提供可供参考的教学方法。

关键词：斯金纳病理生理学教学改革程序教学理论酸碱平衡紊乱强化理论自定步调

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棕榈酸通过激活核因子κB信号通路对MC3T3-E1成骨细胞凋亡的诱导作用

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中华医学杂志 2014年第14期94卷 1101-1104页

作者：钟兴冯颖瑜苏磊卫国红潘天荣修玲玲中山大学附属第一医院内分泌科广州510080 安徽医科大学第二附属医院内分泌科

目的：探讨棕榈酸诱导MC3T3-E1成骨细胞的凋亡是否与核因子（ NF）-κB的激活有关。方法观察不同浓度（0～1000μmol／L）棕榈酸孵育MC3T3-E1成骨细胞24 h后对细胞活力和细胞凋亡的影响。细胞活力用四甲基偶氮唑盐法（ MTT法）检测，细... 详细信息

目的：探讨棕榈酸诱导MC3T3-E1成骨细胞的凋亡是否与核因子（ NF）-κB的激活有关。方法观察不同浓度（0～1000μmol／L）棕榈酸孵育MC3T3-E1成骨细胞24 h后对细胞活力和细胞凋亡的影响。细胞活力用四甲基偶氮唑盐法（ MTT法）检测，细胞凋亡用Hochest 33258染核和Western印迹法检测活化型（ cleaved ） caspase-3蛋白验证。用500μmol／L棕榈酸分别孵育细胞0～240 min，Western印迹法检测IκBα、p-NF-κB p65蛋白表达。结果棕榈酸呈时间和浓度依赖的方式抑制MC3T3-E1细胞活性和促进细胞凋亡。500μmol／L棕榈酸在24 h时细胞活力仅为对照组的54％，cleaved caspase-3蛋白表达则较对照组高3.1倍。棕榈酸诱导p-NF-κB p65在60 min开始升高，120 min时达到高峰增加了2.96倍（ P＜0.05）；IκBα表达水平逐渐下降，以120 min最为明显，下降57％（P＜0.05）。10和20μmol／L浓度的NF-κB抑制剂吡咯烷二硫代氨基甲酸盐（PDTC）均能明显抑制棕榈酸诱导的p-NF-κB p65蛋白（1.39±0.12、1.25±0.10比1.76±0.14，均P＜0.05）；PDTC将cleaved caspase-3和caspase-3蛋白逐渐恢复至接近对照组水平（2.24±0.28比1.29±0.27，0.63±0.01比1.13±0.10，均P＜0.05）。结论棕榈酸诱导的MC3T3-E1成骨细胞凋亡可能通过激活NF-κB转导途径起作用。

关键词：成骨细胞棕榈酸 NF-κB

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