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NO removal performance of CO in carbonation stage of calcium looping for CO_(2) capture

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Chinese Journal of Chemical Engineering 2021年第9期34卷 30-38页

作者： Wan Zhang Yingjie Li yuqi qian Boyu Li Jianli Zhao Zeyan Wang School of Energy and Power Engineering Shandong UniversityJinan 250061China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China

Calcium looping realizes CO_(2)capture via the cyclic calcination/carbonation of *** combustion of fuel supplies energy for the *** is unavoidable that some unburned char in the calciner flows into the carbonator,generating CO due to the hypoxic atmosphere in the *** can reduce NO in the flue gases from coal-fired power *** this work,NO removal performance of CO in the carbonation stage of calcium looping for CO_(2)capture was investigated in a bubbling fluidized bed *** effects of carbonation temperature,CO concentration,CO_(2)capture,type of CaO,number of CO_(2)capture cycles and presence of char on NO removal by CO in carbonation stage of calcium looping were *** possesses an efficient catalytic effect on NO removal by *** temperature and high CO concentration lead to high NO removal efficiency of CO in the presence of *** account of better NO removal and CO_(2)capture,the optimal carbonation temperature is 650℃.The carbonation of CaO reduces the catalytic activity of CaO for NO removal by CO due to the formation of CaCO_(3).Besides,the catalytic performance of CaO on NO removal by CO gradually decreases with the number of CO_(2)capture *** is because the sintering of CaO leads to the fusion of CaO grains and blockage of pores in CaO,hindering the diffusion of NO and *** high CaO content and porous structure of calcium-based sorbents are beneficial for NO removal by *** presence of char promotes NO removal by CO in the ***_(2)/NO removal efficiencies can reach above 90%.The efficient simultaneous NO and CO_(2)removal by CO and CaO in the carbonation step of the calcium looping seems promising.

关键词： Sorbents Carbon monoxide CO_(2)capture NO removal Carbonation stage Calcium looping

Volcanism and Deep Structures of the Moon

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Space(Science & Technology) 2023年第1期3卷 514-527页

作者： Jiannan Zhao Le Qiao Feng Zhang Yuefeng Yuan qian Huang Jianguo Yan yuqi qian Yongliao Zou Long Xiao State Key Laboratory of Geological Process and Mineral Resources Planetary Science InstituteSchool of Earth SciencesChina University of GeosciencesWuhan 430074China Key Laboratory of Geological Survey and Evaluation of Ministry of Education China University of GeosciencesWuhan 430074China Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment School of Space Science and PhysicsInstitute of Space SciencesShandong UniversityWeihaiShandong 264209China State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Hubei Subsurface Multi-scale Imaging Key Laboratory Institute of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan University129 Luoyu RoadWuhan 430070China

Volcanism is the most important endogenic geological process of the Moon,which is closely related to its internal structure and thermal *** volcanism is one of the most important topics for lunar science and *** lunar orbital observations,in situ explorations,and sample return missions have returned a new generation of high-resolution datasets,which greatly enriched our knowledge of lunar ***,we summarize recent advances in the duration and spatial distribution of lunar mare volcanism,as well as origin of volcanic landforms such as lava flows,sinuous rilles,lava tubes,domes,and *** proposed several outstanding problems in the study of temporal and spatial span of lunar volcanism,the formation mechanism of the varied volcanic landforms,and their relation with deep *** solve these problems,more in situ explorations and sample return missions from various volcanic units are needed.

关键词： volcanic enriched return

A novel method for simultaneous analysis of particle size and mineralogy for Chang’E-5 lunar soil with minimum sample consumption

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Science China Earth Sciences 2022年第9期65卷 1704-1714页

作者： Kenan CAO Mingtan DONG Zhenbing SHE qian XIAO Xinyi WANG yuqi qian Yiheng LI Zaicong WANG Qi HE Xiang WU Keqing ZONG Zhaochu HU Long XIAO State Key Laboratory of Biogeology and Environmental Geology School of Earth SciencesChina University of GeosciencesWuhan 430078China School of Environmental Studies China University of GeosciencesWuhan 430078China State Key Laboratory of Geological Processes and Mineral Resources School of Earth SciencesChina University of GeosciencesWuhan 430078China

The successful return of lunar soil samples from the northern Oceanus Procellarum by the Chang’E 5(CE-5) mission has provided unprecedented ground-truth information for the previously unexplored region of the Moon. In particular, the particle size and mineral constituents of the CE-5 soil samples are of critical importance to interpret remote sensing data. With a Raman-based particle analysis system, we show that the particle size properties and mineral constituents of the CE-5 soil can be simultaneously determined with a small sample size(ca. 30 μg). The CE-5 sample scooped from the lunar surface has an overall small size between 0.4 μm and 73.9 μm(mean=3.5 μm), and mainly consists of pyroxene(39.4%), plagioclase(37.5%), olivine(9.8%), Fe-Ti oxides(1.9%), glass(8.3%) and other minor or trace phases. The results are consistent with previous analyses with larger sample sizes. In addition to minimum sample consumption, this method requires very little sample preparation, and can rapidly build a large database with each particle precisely traceable. Therefore, this novel technique is particularly suitable for the analysis of future returned soil samples from extraterrestrial bodies.

关键词： Raman-based particle analysis Modal abundance Size-dependent mineralogy Laser-induced oxidation

Complexity of the NWA 773 Clan: New Evidence from Lunar Olivine Gabbro NWA 6950

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Journal of Earth Science 2023年

作者： Qi He Long Xiao Ioannis Baziotis Xiaochao Che yuqi qian Jiawei Zhao Laboratory of Mineralogy and Geology， Agricultural University of Athens Beijing SHRIMP Center， Institute of Geology， Chinese Academy of Geological Sciences

NWA 6950 is a type of cumulate gabbro meteorite that displays features indicating a lunar origin. Specifically， the Fe/Mn values of olivines and pyroxenes in the meteorite suggest a lunar origin， as does the presence of Fe-Ni metal. The meteorite has also undergone intense shock metamorphism， which is evidenced by the presence of ringwoodite， tuite， and xieite (a type of chromite with a CaTi2O4structure) within the shock melt veins (SMVs).The texture， mineral modal abundances， and bulk compositions (measured from the SMVs) of NWA 6950 are similar to those of the NWA 773 clan， as are the concentrations and patterns of rare-earth-elements in olivine， pyroxene， plagioclase， and phosphate. In-situ U-Pb dating of baddeleyite and phosphate in NWA 6950 has determined its crystallization age to be 3 133 ± 11 Ma and 3 129 ± 23 Ma， which is consistent with age data provided by Shaulis et al. (2017).Further， the chronology of the NWA 773 clan appears to be at least bimodal when considering the age of NWA 3333 (3 038 ± 20 Ma; Merle et al.， 2020). The tight range of ages for the NWA 773 clan at approximately 3.1 Ga coincides with a change in the eruption flux and style on the Moon. This suggests that lunar volcanism may have shifted from extrusive-dominated to intrusive-dominated at approximately 3.1 Ga， resulting in the widespread distribution of gabbro lithologies on the Moon.

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The plastid terminal oxidase is at the center balancing the redox state of thylakoid membrane

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The plastid terminal oxidase is at the center balancing the ...

Scientists eager for Chang’e-6 lunar farside samples to bring new discoveries

2016年全国植物生物学大会

作者： Danfeng Wang yuqi qian Aigen Fu Shaanxi Key Lab of Biotechnology Northwest University

Mitochondria possess oxygen-consuming respiratory electron transfer chains(RETC),and the oxygenevolving photosynthetic electron transfer chain(PETC) resides in chloroplasts. However cyanobacteria harbor both RETC and PETC on their thylakoid membranes. It is proposed that chloroplasts could possess a RETC on the thylakoid membrane,in addition to PETC. Identification of a plastid terminal oxidase(PTOX) in the chloroplast from the Arabidopsis variegation mutant immutans(im) demonstrated the presence of a RETC in chloroplasts,and the PTOX is the committed oxidase. PTOX is distantly related to the mitochondrial alternative oxidase(AOX),which is responsible for the CN-insensitive alternative RETC. Similar to AOX as a ubiquinol oxidase,PTOX is a plastoquinol(PQH2) oxidase on the chloroplast thylakoid membrane. Lack of PTOX,Arabidopsis im showed a light-dependent variegation phenotype;and mutant plants will not survive the mediocre light intensity during its early development stage. PTOX is involved in carotenoid biosynthesis,and the phytoene desaturation is blocked in the white sectors of Arabidopsis im mutant. PTOX is a stress-related protein,and can protect plants from various environmental stresses,especially high light stress. PTOX also plays significant roles in chloroplast development and plant morphogenesis. Physiological roles played by could be a direct or indirect consequence of its PQH2 oxidase activity to maintain the PQ pool redox state on the thylakoid membrane. The PTOX-dependent chloroplast RETC(so called chlororesipration) does not contribute significantly when chloroplast PETC is normally developed and functions well. However,PTOX-mediated RETC could be the major force to regulate the PQ pool redox balance in the darkness,under conditions of stress,in non-photosynthetic plastids,especially in the early development from proplastids to chloroplasts.

关键词： photosynthesis plastid terminal oxidase(PTOX) plastoquinone(PQ) pool variegation carotenoid biogenesis

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The Innovation 2024年第5期5卷 5-6页

作者： Wei Yang Yuyang He yuqi qian Zongyu Yue Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Department of Earth Sciences&Laboratory for Space Research The University of Hong KongHong Kong 999077China

The tidal locking effect keeps the Moon consistently presents its one side—the near side—to Earth,rendering the other side—the far side—inaccessible for people standing on ***,the far side of the Moon remained shrouded in mystery for human observers until the onset of space *** 1959,the Soviet Union’s Luna 3 spacecraft returned the first views ever of the far side of the *** the blurriness of the photo by contemporary standards,the stark contrast between the near side and far side of the Moon was *** then,a growing number of orbital probes have revealed significant differences between the two sides of the Moon,including lunar crust thickness,magma activities,and ***,the origins of these differences remain unexplained.

关键词： rendering striking Earth

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电力系统中量子信息学的应用现状及展望

中国电机工程学报 2023年第12期43卷 4485-4507页

作者：谢海鹏钱雨琦付炜王信别朝红电力设备电气绝缘国家重点实验室(西安交通大学) 陕西省西安市710049

量子信息学在信息获取、传输和处理等方面具有独特优势,在保障新型电力系统信息安全和纾解算力困境等方面潜力巨大。从量子通信和量子计算2个方面,总结了电力系统应用背景下的量子信息学研究现状,并对未来可能的研究方向进行了展望。首... 详细信息

量子信息学在信息获取、传输和处理等方面具有独特优势,在保障新型电力系统信息安全和纾解算力困境等方面潜力巨大。从量子通信和量子计算2个方面,总结了电力系统应用背景下的量子信息学研究现状,并对未来可能的研究方向进行了展望。首先,介绍了量子信息学的基本概念和原理。然后,针对量子通信,分析了典型量子通信技术在新型电力系统中的适用性,并从远距离信息传输、多主体通信、统一标准化和专用研发平台4个方面了梳理电力系统中量子通信的研究现状;针对量子计算,从线性代数运算、优化问题求解、机器学习和参数估计等方面阐述归纳了量子算法的基本原理及其在电力系统中的研究现状。最后,面向新型电力系统中量子信息学的应用前景进行了展望,并提出了电力系统中量子信息学的发展建议。

关键词：量子信息学新型电力系统量子通信量子计算量子衍生算法

Evidence for marine sedimentary rocks in Utopia Planitia:Zhurong rover observations

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National Science Review 2023年第9期10卷 224-233页

作者：肖龙黄俊 Timothy Kusky James W.Head 赵健楠王江王乐余文超史语桐吴波钱煜奇黄倩肖瀟 State Key Laboratory of Geological Processes and Mineral Resources Planetary Science Institute School of Earth Sciences China University of Geosciences 2. Chinese Academy of Sciences Center for Excellence in Comparative Planetology 3. State Key Laboratory of Geological Processes and Mineral Resources Center for Global Tectonics School of Earth Sciences China University of Geosciences 4. Badong National Observatory and Research Station for Geohazards China University of Geosciences 5. Department of EarthEnvironmental and Planetary SciencesBrown University Key Laboratory of Geological Survey and Evaluation of Ministry of Education China University of Geosciences Planetary Remote Sensing Laboratory Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic University 8. Hubei Subsurface Multi-scale Imaging Key LaboratoryInstitute of Geophysics and Geomatics China University of Geosciences

Decades of research using remotely sensed data have extracted evidence for the presence of an ocean in the northern lowlands of Mars in the Hesperian(～3.3 Ga),but these claims have remained controversial due to the lack of in situ analysis of the associated geologic unit,the Vastitas Borealis Formation(VBF).The Tianwen-1/Zhurong rover was targeted to land within the VBF near its southern margin and has traversed almost 2 km southward toward the interpreted *** report here on the first in situ analysis of the VBF that reveals sedimentary structures and features in surface rocks that suggest that the VBF was deposited in a marine environment,providing direct support for the existence of an ancient(Hesperian)ocean on Mars.

关键词： ancient ocean sedimentary rocks Zhurong Tianwen-1 Mars

基于“视觉局限补偿”机理的微视频设计模型——以初中物理“光现象”单元的学习为例

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中国电化教育 2017年第3期 121-126页

作者：伊亮亮董玉琦钱薇旭东北师范大学教育学部吉林长春130024 上海师范大学教育技术系上海200234

该文运用二阶诊断测试法对8年级学生在"光现象"单元学习之前的认知起点进行了测查。在借助具身认知理论对学习内容与学习者的认知状况进行综合分析后发现:由于学习者的视觉感知在明暗分辨能力、空间分辨能力和时间分辨能力等方面存在局... 详细信息

该文运用二阶诊断测试法对8年级学生在"光现象"单元学习之前的认知起点进行了测查。在借助具身认知理论对学习内容与学习者的认知状况进行综合分析后发现:由于学习者的视觉感知在明暗分辨能力、空间分辨能力和时间分辨能力等方面存在局限,学习者可能通过视觉获得不准确或不全面的信息,并以这些信息为依据形成对"光现象"内容的偏差认知。为了从源头上修正学习者的偏差认知,该文提出了以借助技术对视觉局限进行补偿为核心,以改善学习、促进学习者偏差认知的转变为目的,以综合运用生理补偿和心理补偿为手段的微视频学习资源设计模型,开发了"光现象"系列微视频学习资源,并通过等组准实验研究对模型及微视频学习资源的效果进行了检验。教学实验结果显示,运用微视频学习资源进行教学的实验组在促进学习者偏差认知转变方面显著优于对照组。

关键词： CTCL 具身认知中学物理视觉局限微视频光现象