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Preparation and Properties of Eco-Friendly Aerated Concrete Utilizing High-Volume Fly Ash with MgO and CaO Activators

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Journal of Renewable Materials 2022年第12期10卷 3335-3350页

作者： Xiaoling Qu Xingshuo Yang Siqi li Changan Tian Zaibo Li zhiguang zhao School of Chemistry and Civil Engineering Shaoguan University Shaoguan512005China

The associated MgO in limestone is believed to affect the volume stability of cementitious materials at room tem-perature,which limits the utilization of low grade *** this study,MgO was used as an alkali activator instead of partial CaO to prepare the aerated concrete under hydrother mal *** expansion process was studied to evaluate the influence of the raw materials on the gas forming stability of the *** pore structure(porosity,pore size and its distribution)was analyzed by the image *** physic mechanical properties(density,strength,thermal properties)of concrete with the addition of MgO were comprehensively ***,the mineral compositions and morphology of the hydration products were analyzed to demonstrate the infuence mechanism of MgO on the mechanical *** results show that the final expansion rate of the slurry decreases with MgO content.A reasonable MgO content,ie,MgO/(MgO+CaO)<20%,con-tributes to improve the compressive strength,attributing to an increased reaction rate to C-S-H gel and *** addition of MgO causes the thermal conductivity and specific heat to *** pore structure is mainly related to the amount of air entraining *** study has a significance for the further utilization of magnesium-rich carbonates in the autoclaved building products.

关键词： Fly ash aerated concrete,strength thermal properties pore structure

Assessment of organic compost and biochar in promoting phytoremediation of crude-oil contaminated soil using Calendula officinalis in the Loess Plateau, China

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Journal of Arid Land 2021年第6期13卷 612-628页

作者： WANG Jincheng JING Mingbo ZHANG Wei ZHANG Gaosen ZHANG Binglin LIU Guangxiu CHEN Tuo zhao zhiguang Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Key Laboratory of Extreme Environmental Microbial Resources and Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Gansu Key Laboratory of Protection and Utilization for Biological Resources and Ecological Restoration Longdong UniversityQingyang 745000China State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China School of Life Sciences Lanzhou UniversityLanzhou 730000China

The Loess Plateau,located in Gansu Province,is an important energy base in China because most of the oil and gas resources are distributed in Gansu *** the last 40 a,ecological environment in this region has been extremely destroyed due to the over-exploitation of crude-oil *** of crude-oil contaminated soil in this area remains to be a challenging *** this study,in order to elucidate the effects of organic compost and biochar on phytoremediation of crude-oil contaminated soil(20 g/kg)by Calendula officinalis,we designed five treatments,i.e.,natural attenuation(CK),planted *** only(P),planted *** with biochar amendment(PB),planted *** with organic compost amendment(PC),and planted *** with co-amendment of biochar and organic compost(PBC).After 152 d of cultivation,total petroleum hydrocarbons(TPH)removal rates of CK,P,PB,PC and PBC were 6.36%,50.08%,39.58%,73.10%and 59.87%,*** and root dry weights of *** significantly increased by 172.31%and 80.96%under PC and 311.61%and 145.43%under PBC,respectively as compared with P(P<0.05).Total chlorophyll contents in leaves of *** under P,PC and PBC significantly increased by 77.36%,125.50%and 79.80%,respectively(P<0.05)as compared with ***-chemical characteristics and enzymatic activity of soil in different treatments were also *** highest total N,total P,available N,available P and SOM(soil organic matter)occurred in PC,followed by PBC(P<0.05).*** rhizospheric soil dehydrogenase(DHA)and polyphenol oxidase(PPO)activities in PB were lower than those of other treatments(P<0.05).The values of ACE(abundance-based coverage estimators)and Chao 1 indices for rhizospheric bacteria were the highest under PC followed by PBC,P,PB and CK(P<0.05).However,the Shannon index for bacteria was the highest under PC and PBC,followed by P,PB and CK(P<0.05).In terms of soil microbial community composition,Proteiniphil

关键词： total petroleum hydrocarbons soil physical-chemical characteristics plant physiological parameters soil enzyme microbial community composition

Lithiophilic Li-Si alloy-solid electrolyte interface enabled by high-concentration dual salt-reinforced quasi-solid-state electrolyte

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Journal of Energy Chemistry 2024年第8期95卷 216-230,I0005页

作者： Yuanxing Zhang Ling Zhang zhiguang zhao Yuxiang Zhang Jingwen Cui Chengcai Liu Daobin Mu Yuefeng Su Borong Wu Feng Wu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Chongqing Innovation Center Beijing Institute of TechnologyChongqing 401120China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

Solid polymer electrolytes(SPEs)are urgently required to achieve practical solid-state lithium metal batteries(LMBs)and lithium-ion batteries(LIBs),Herein,we proposed a mechanism for modulating interfacial conduction and anode interfaces in high-concentration SPEs by *** electrolyte exhibits superior ionic conductivity and remarkable interface compatibility with salt-rich clusters:(1)polymer-plastic crystal electrolyte(P-PCE,TPU-SN matrix)dissociates ion pairs to facilitate Li+transport in the electrolyte and regulates Li^(+)diffusion in the *** crosslinking structure of the matrix compensates for the loss of mechanical strength at high-salt concentrations;(2)dual-anion TFSI^(-)_(n)-DFBOP^(-)_(m)in the Li^(+)solvation sheath facilitates facile Li^(+)desolvation and formation of salt-rich clusters and is conducive to the formation of Li conductive segments of TPU-SN matrix;(3)theoretical calculations indicate that the decomposition products of LiDFBOP form SEI with lower binding energy with LiF in the SN system,thereby enhancing the interfacial electrochemical redox kinetics of SPE and creating a solid interface SEI layer rich in *** a result,the optimized electrolyte exhibits an excellent ionic conductivity of9.31×10^(-4)S cm^(-1)at 30℃and a broadened electrochemical stability up to 4.73 *** designed electrolyte effectively prevents the formation of Li dendrites in Li symmetric cells for over 6500 h at0.1 mA cm^(-2).The specific Li-Si alloy-solid state half-cell capacity shows 711.6 mAh g^(-1)after 60 cycles at 0.3 A g^(-1).Excellent rate performance and cycling stability are achieved for these solid-state batteries with Li-Si alloy anodes and NCM 811 *** 811‖Prelithiated silicon-based anode solid-state cell delivers a discharge capacity of 195.55 mAh g^(-1)and a capacity retention of 97.8%after 120 *** 811‖Li solid-state cell also delivers capacity retention of 84.2%after 450 cycles.

关键词： Prelithiation Li-Si alloy anode Solid-state electrolyte SEI layer

Elution Behaviour of Monocarboxylic Acids on a Cation-exchange Resin Column

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Chemical Research in Chinese Universities 1989年第3期5卷 237-243页

作者： zhao Guoliang and Liu zhiguang (Department of Chemistry, Mian University of Technology, Dalian)

The retention mechanism of monocarboxylic acids on a cation-exchange resin column was investigated. It was assumed that both Donnan membrane equilibrium and adsorption equilibrium were involved in the chromatographic process. On the basis of the proposed mechanism, an equation was derived for correlating distribution coefficient, Kd, dissociation constant, Aa, and adsorption equilibrium constant, K, of the analyzed acid. By this approach, retention data for some aliphatic acids under different operating conditions were predicted. Results are reasonably in agreement with experiment.

关键词： Ion exclusion chromatography Monocarboxylic acids Cation-exchange resin

Ethylene Production and 1-Aminocyclopropane-l-Carboxylate （ACC） Synthase Gene Expression in Tomato （ L ycopsicon esculentum Mill.） Leaves Under Enhanced UV-B Radiation

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Journal of Integrative Plant Biology 2006年第10期48卷 1190-1196页

作者： Lizhe An Xiaofeng Xu Hongguan Tang Manxiao Zhang Zongdong HOU Yanhong Liu zhiguang zhao Huyuan Feng Shijian Xu Xunling Wang Key Laboratory of Arid and Grassland Ecology of Ministry of Education Lanzhou University Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute the Chinese Academy of Sciences Lanzhou 730000 China

Tomato （Lycopslcon esculentum Mill.） plants grown in a greenhouse were irradiated with two different levels of UV-B, namely 8.82 （T1） and 12.6 kJ/m^2 per day （T2）. Ethylene production, 1-aminocyclopropane-1-carboxylate （ACC） content, 1-（malonylamino） cyclopvopane-1-carboxylic acid （MACC） content, gene expression of ACC aynthase （EC 4.***.1.14）, and ACC oxidase activity in tomato leaves were determined. The results Indicated that ACC content, the activity of ACC synthase and ACC oxidase, and ethylene production Increased continuously under low doses of UV-B radiation, whereas at high doses of radiation these parameters Increased during the first 12 d and then started to decrease. The MACC content increased continuously over 18 d under both doses of UV-B irradiation. The changes in ACC content, ACC synthaae activity, ACC oxidase activity, the transcriptional level of the ACC synthase gene, and ethylene production were consistent with each other, suggesting that ACC synthase was the key enzyme in ethylene biosynthesis and that ethylene production in tomato leaf tissues under UV-B radiation could be regulated by the expression of the ACC synthase gene. The results also indicate that the change in ethylene metabolism may be an adaptive mechanism to enhanced UV-B radiation.

关键词： enhanced UV-B radiation ethylene production gene expression of 1-aminocyclopropane-l-carboxylate (ACC) synthase Lycopsicon esculentum

Genome-wide Analysis of Position Effects on Gene Expression at Single-cell Resolution

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Genome-wide Analysis of Position Effects on Gene Expression ...

第五届中国秀丽线虫大会

作者： Rong Fan zhiguang zhao Zhuo Du State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of Sciences

＜正＞Expression of identical transgene could be highly variable,depends on the genomic location of integration,a phenomenon known as position *** in Drosophila have showed that characterization of position effects is...

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破坏模态逻辑的算法对应理论

逻辑学研究 2022年第6期15卷 66-92页

作者：赵之光泰山学院数学与统计学院

破坏模态逻辑是一种动态逻辑。它在静态模态逻辑的基础上加入了一个动态算子,解释成“在删掉一条边后,公式为真”。在本文中,我们试图解决一个开放问题,即给出破坏模态逻辑的Sahlqvist对应定理。我们定义破坏模态逻辑的Sahlqvist公式,... 详细信息

破坏模态逻辑是一种动态逻辑。它在静态模态逻辑的基础上加入了一个动态算子,解释成“在删掉一条边后,公式为真”。在本文中,我们试图解决一个开放问题,即给出破坏模态逻辑的Sahlqvist对应定理。我们定义破坏模态逻辑的Sahlqvist公式,并给出一个算法ALBASML来计算破坏模态逻辑的Sahlqvist公式的一阶对应。

关键词：模态逻辑动态逻辑对应定理

扩展模态语言中模态可定义性的不可判定性结果

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逻辑学研究 2021年第6期14卷 25-40页

作者：赵之光泰山学院数学与统计学院

在本文中,我们使用Balbiani和Tinchev的稳定类方法证明在加全称模态词的模态语言L_(U)、时态语言L_(T)、混合语言L_(H),L_(H(@))中,Chagrova定理成立,即一阶公式相对于特定框架类的模态/时态/混合可定义性问题是不可判定的。

关键词：可定义性不可判定性混合语言模态词 LH 时态

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含例邻域逻辑的萨奎斯特对应理论

逻辑学研究 2021年第3期14卷 1-23页

作者：赵之光泰山学院数学与统计学院

本文给出含例邻域逻辑的萨奎斯特对应理论。这种逻辑可以讨论一个可能世界的邻域的存在性信息,是关系语义和邻域语义的一种混合。增加的表达力和描述邻域函数的关系特征使我们可以在框架层面讨论这种语言可以定义什么性质,是否可以超越... 详细信息

本文给出含例邻域逻辑的萨奎斯特对应理论。这种逻辑可以讨论一个可能世界的邻域的存在性信息,是关系语义和邻域语义的一种混合。增加的表达力和描述邻域函数的关系特征使我们可以在框架层面讨论这种语言可以定义什么性质,是否可以超越邻域语义的KW片段。我们给出对应定理的两个证明。第一个证明直接使用标准翻译和极小赋值的技术,第二个证明通过双模态翻译将含例邻域逻辑的对应问题转化为经典克里普克语义的双模态逻辑。

关键词：模态逻辑邻域函数奎斯特双模态表达力关系语义对应定理对应问题