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Big Earth Data 2021年第4期5卷 443-444页

作者： Huadong Guo Heide Hackmann Ke Gong International research center of Big Data for sustainable development Goals World Federation of Engineering Organizations

The rapid development of analytics and concepts in big data enables us to diversify our efforts and enhance opportunities to implement the sustainable development Goals(SDGs).Big data improves the extent to which scientific evidence and innova-tive technological solutions can be adopted to meet these ***,the tools and methods of big data are still somewhat of a novelty in this respect.

关键词： sustainable continued enable

Big data in support of the sustainable development Goals:a celebration of the establishment of the International research center of Big Data for sustainable development Goals(CBAS)

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Big Earth Data 2021年第3期5卷 259-262页

作者： Huadong Guo Heide Hackmann Ke Gong International research center of Big Data for SDGs International Science Council World Federation of Engineering Organizations

In the last century the impacts of human activity on natural processes that sustain the Earth’s biosphere,atmosphere,hydrosphere and lithosphere and that provide the bed-rock of human life support systems,have grown to the extent that they pose a credible existential threat to ***,the biggest challenge for science,technology and innovation(STI)is to contribute to the pursuit of global sustainability as exemplified in the sustainable development Goals(SDGs)that were adopted by the United Nations(UN)in 2015.

关键词： sustainable pursuit humanity

Effect of chemical admixtures on properties of high-calcium fly ash geopolymer

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International Journal of Minerals,Metallurgy and Materials 2011年第3期18卷 364-369页

作者： Ubolluk Rattanasak Kanokwan Pankhet Prinya Chindaprasirt Department of Chemistry and center for Innovation in Chemistry Faculty of Science Burapha University sustainable infrastructure research and development center Department of Civil Engineering Faculty of Engineering Khon Kaen University

Owing to the high viscosity of sodium silicate solution, fly ash geopolymer has the problems of low workability and rapid setting time. Therefore, the effect of chemical admixtures on the properties of fly ash geopolymer was studied to overcome the rapid set of the geo-polymer in this paper. High-calcium fly ash and alkaline solution were used as starting materials to synthesize the geopolymer. Calcium chloride, calcium sulfate, sodium sulfate, and sucrose at dosages of 1wt% and 2wt% of fly ash were selected as admixtures based on concrete knowledge to improve the properties of the geopolymer. The setting time, compressive strength, and degree of reaction were recorded, and the microstructure was examined. The results show that calcium chloride significantly shortens both the initial and final setting times of the geopolymer paste. In addition, sucrose also delays the final setting time significantly. The degrees of reaction of fly ash in the geopolymer paste with the admixtures are all higher than those of the control paste. This contributes to the obvious increases in compressive strength.

关键词： geopolymers chemical admixtures setting time fly ash

Properties of high calcium fly ash geopolymer pastes with Portland cement as an additive

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International Journal of Minerals,Metallurgy and Materials 2013年第2期20卷 214-220页

作者： Tanakorn Phoo-ngernkham Prinya Chindaprasirt Vanchai Sata Saengsuree Pangdaeng Theerawat Sinsiri sustainable infrastructure research and development center Department of Civil EngineeringFaculty of EngineeringKhon Kaen University School of Civil Engineering Institute of EngineeringSuranaree University of Technology

The effect of Portland cement （OPC） addition on the properties of high calcium fly ash geopolymer pastes was investigated in the paper. OPC partially replaced fly ash （FA） at the dosages of 0, 5%, 10%, and 15% by mass of binder. Sodium silicate （Na2SiO3） and sodium hydroxide （NaOH） solutions were used as the liquid portion in the mixture： NaOH 10 mol/L, Na2SiO3/NaOH with a mass ratio of 2.0, and alkaline liquid/binder （L/B） with a mass ratio of 0.6. The curing at 60℃ for 24 h was used to accelerate the geopolymerization. The setting time of all fresh pastes, porosity, and compressive strength of the pastes at the stages of 1, 7, 28, and 90 d were tested. The elastic modulus and strain capacity of the pastes at the stage of 7 d were determined. It is revealed that the use of OPC as an additive to replace part of FA results-in the decreases in the setting time, porosity, and strain capacity of the paste specimens, while the compressive strength and elastic modulus seem to increase.

关键词： geopolymers Portland cement fly ash compressive strength porosity elastic moduli

Electrical conductivity and dielectric property of fly ash geopolymer pastes

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International Journal of Minerals,Metallurgy and Materials 2011年第1期18卷 94-99页

作者： Sakonwan Hanjitsuwan Prinya Chindaprasirt Kedsarin Pimraksa sustainable infrastructure research and development center Department of Civil EngineeringFaculty of EngineerKhon Kaen University Department of Industrial Chemistry Faculty of ScienceChiang Mai University

The electrical conductivity and dielectric property of fly ash geopolymer pastes in a frequency range of 100 Hz-10 MHz were *** effects of the liquid alkali solution to ash ratios（L/A） were *** mineralogical compositions and microstructures of fly ash geopolymer materials were also investigated using X-ray diffraction（XRD） and scanning electron microscopy（SEM）.The 10 mol sodium hydroxide solution and sodium silicate solution at a sodium silicate-to-sodium hydroxide ratio of 1.0 were used in making geopolymer *** pastes were cured at 40℃.It is found that the electrical conductivity and dielectric constant are dependent on the frequency range and L/A *** conductivity increases but the dielectric constant decreases with increasing frequency.

关键词： fly ash inorganic polymers dielectric properties electrical conductivity

Factors affecting the shrinkage of fly ash geopolymers

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International Journal of Minerals,Metallurgy and Materials 2011年第1期18卷 100-104页

作者： Charoenchai Ridtirud Prinya Chindaprasirt Kedsarin Pimraksa sustainable infrastructure research and development center Department of Civil EngineeringFaculty of EngineeringKhon Kaen University Department of Industrial Chemistry Faculty of SciencesChiang Mai University

The shrinkage of fly ash geopolymers was studied in the present *** ash was used as the source material for making the *** effects of the concentration of NaOH,sodium silicate-to-NaOH ratio,liquid-to-ash ratio,curing temperature,and curing time on shrinkage were *** geopolymers were cured at 25,40,and 60℃,*** results indicate that the shrinkage of geopolymers is strongly dependent on curing temperature and liquid-to-ash *** increase in shrinkage is associated with the low strength development of *** is also found that NaOH concentration and sodium silicate-to-NaOH ratio also affect the shrinkage of geopolymers but to a lesser extent.

关键词： fly ash inorganic polymers shrinkage compressive strength

Strength,porosity,and chloride resistance of mortar using the combination of two kinds of pozzolanic materials

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International Journal of Minerals,Metallurgy and Materials 2013年第8期20卷 808-814页

作者： Sumrerng Rukzon Prinya Chindaprasirt Department of Civil Engineering Faculty of EngineeringRajamangala University of Technology Phra Nakhon sustainable infrastructure research and development center Department of Civil EngineeringFaculty of EngineeringKhon Kaen University

This article presents a study on the resistance to chloride penetration, corrosion, porosity, and strength of mortar containing fine fly ash （FA）, ground rice husk-bark ash （RB）, and ground bagasse ash （BA）. Ordinary Portland cement （CT） was blended with a single pozzolan and two pozzolans. Strength, porosity, rapid chloride penetration, immersion, and corrosion tests were performed to characterize the mortar. Test results showed that the use of ternary blends of CT, FA, and RB or BA decreased the porosity of the mortar, as compared with binary blended mortar containing CT and RB or BA. The resistance to chloride penetration of the mortar improved substantially with partial replacement of CT with FA, RB, and BA. The use of ternary blends of CT, FA and RB or BA produced the mortar with good strength and resistance to chloride penetration. The resistance to chloride penetration was higher with an increase in the replacement level due to the reduced calcium hydroxide.

关键词： mortar pozzolanic materials strength porosity chloride penetration agricultural wastes

The emerging role of mesenchymal stem cell-derived extracellular vesicles to ameliorate hippocampal NLRP3 inflammation induced by binge-like ethanol treatment in adolescence

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Neural Regeneration research 2025年第4期20卷 1153-1163页

作者： Susana Mellado María JoséMorillo-Bargues Carla Perpiñá-Clérigues Francisco García-García Victoria Moreno-Manzano Consuelo Guerri María Pascual Department of Physiology School of Medicine and DentistryUniversity of ValenciaValenciaSpain Bioinformatics and Biostatistics Unit Príncipe Felipe Research CenterValenciaSpain Neuronal and Tissue Regeneration Laboratory Príncipe Felipe Research CenterValenciaSpain

Our previous studies have reported that activation of the NLRP3(NOD-,LRR-and pyrin domain-containing protein 3)-inflammasome complex in ethanol-treated astrocytes and chronic alcohol-fed mice could be associated with neuroinflammation and brain *** stem cell-derived extracellular vesicles(MSC-EVs)have been shown to restore the neuroinflammatory response,along with myelin and synaptic structural alterations in the prefrontal cortex,and alleviate cognitive and memory dysfunctions induced by binge-like ethanol treatment in adolescent *** the therapeutic role of the molecules contained in mesenchymal stem cell-derived extracellular vesicles,the present study analyzed whether the administration of mesenchymal stem cell-derived extracellular vesicles isolated from adipose tissue,which inhibited the activation of the NLRP3 inflammasome,was capable of reducing hippocampal neuroinflammation in adolescent mice treated with binge *** demonstrated that the administration of mesenchymal stem cell-derived extracellular vesicles ameliorated the activation of the hippocampal NLRP3 inflammasome complex and other NLRs inflammasomes(e.g.,pyrin domain-containing 1,caspase recruitment domain-containing 4,and absent in melanoma 2,as well as the alterations in inflammatory genes(interleukin-1β,interleukin-18,inducible nitric oxide synthase,nuclear factor-kappa B,monocyte chemoattractant protein-1,and C–X3–C motif chemokine ligand 1)and miRNAs(miR-21a-5p,miR-146a-5p,and miR-141-5p)induced by binge-like ethanol treatment in adolescent *** analysis further revealed the involvement of miR-21a-5p and miR-146a-5p with inflammatory target genes and NOD-like receptor signaling *** together,these findings provide novel evidence of the therapeutic potential of MSC-derived EVs to ameliorate the hippocampal neuroinflammatory response associated with NLRP3 inflammasome activation induced by binge drinking in adolescence.

关键词： adolescence binge-like ethanol treatment extracellular vesicles hippocampus mesenchymal stem cells neuroinflammation NOD-,LRR-and pyrin domain-containing protein 3(NLRP3)

development of target fabrication for laser-driveninertial confinement fusion at research center oflaser fusion

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High Power Laser Science and Engineering 2017年第1期5卷 25-33页

作者： Tao Wang Kai Du Zhibing He Xiaoshan He research center of Laser Fusion China Academy of Engineering PhysicsMianyang 621900China

As the basic conditions for laser inertial confinement fusion(ICF) research, the targets are required to be well specified and elaborately fabricated. Because of the characteristics of the targets, the research and fabrication process is a systematically tough task, which needs fundamental and deep insights into film deposition, mechanical machining,precise measurement and assembly, etc. As a result, knowledge of material science, physics, mechanical as well as electronics is a necessity for target researchers. In this paper, we give introductions to the state of art on target fabrication for ICF research at research center of Laser Fusion(RCLF) in China.

关键词： development ICF target fabrication

Distribution and Chain Pattern of Liquefied Natural Gas Industry in China

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Chinese Geographical Science 2007年第3期17卷 203-209页

作者： ZHANG Yaoguang ZHAO Yonghong CHANG Hongwei WANG Dan MENG Zhaobin research center of sustainable development and Marine Economy Liaoning Normal UniversityDalian 116029China

The production and consumption of natural gas in China has been developing rapidly in recent *** is expected that the annual growth rate of the demand for natural gas will reach 12% in the next 15 years,and the gas consumption in the primary energy will increase from 0.3% to 10% or more by ***,since the supply of natural gas cannot satisfy the requirements,China has begun to build liquefied natural gas(LNG)terminals in the coastal regions such as Guangdong and Fujian,and solve this problem by importing LNG from foreign *** needs to be transported by LNG ships from *** the rapid growth of global gas production,the volume of LNG trade also increases,and the interregional production increased from 0.3% in 1970 to 26.2% in ***,we need LNG ships more than *** article puts forward the distribution of LNG ships and the speculation of the future of LNG transportation based on the studies on foreign LNG production,the LNG trade,the building of LNG ships,the LNG transportation,the chain model of LNG distribution,etc.

关键词： liquefied natural gas (LNG) LNG industry LNG ship LNG transportation LNG industry distribution China