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Viscosity and structure rel.tionship with equimol.r substitution of CaO with MgO in the CaO–MgO–Al.(2)O_(3)–SiO_(2)sl.g mel.s

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International.Journal.of Mineral.,Metal.urgy and Material. 2025年第1期32卷 70-79页

作者： Yong Hou Shuo Zhang Jie Dang jia Guo Hanghang Zhou Xuewei l. Col.ege of Material. Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key l.boratory of Vanadium-Titanium Metal.urgy and New Material. Chongqing UniversityChongqing 400044China

Currentl.,the Al.(2)O_(3)content in the high-al.mina sl.g systems within bl.st furnaces is general.y l.mited to 16wt%–18.5wt%,making it chal.enging to overcome this *** most studies that concentrated on managing the MgO/Al.(2)O_(3)ratio or basicity,this paper expl.red the effect of equimol.r substitution of MgO for CaO on the viscosity and structure of a high-al.mina CaO-MgO-Al.(2)O_(3)-SiO_(2)sl.g system,providing theoretical.guidance and data to facil.tate the appl.cation of high-al.mina *** resul.s reveal.d that the viscosity first decreased and then increased with higher MgO substitution,reaching a minimum at 15mol.MgO *** transform infrared spectroscopy(FTIR)resul.s found that the depths of the troughs representing[SiO_(4)]tetrahedra,[Al._(4)]tetrahedra,and Si-O-Al.bending became progressivel. deeper with increased MgO *** of the Raman spectra showed that the average number of bridging oxygens per Si atom and the X_(Q^(3))/X_(Q^(2))(X_(Q^(i))is the mol.r fraction of Q^(i) unit,and i is the number of bridging oxygens in a[SiO_(4)]tetrahedral.unit)ratio increased from 2.30 and 1.02 to 2.52 and 2.14,respectivel.,indicating a progressive pol.merization of the sil.cate structure.X-ray photoel.ctron spectroscopy(XPS)resul.s highl.ghted that non-bridging oxygen content decreased from 77.97mol. to 63.41mol. with increasing MgO concentration,whereas bridging oxygen and free oxygen contents *** anal.sis demonstrated a gradual.increase in the pol.merization degree of the tetrahedral.structure with the increase in MgO ***,bond strength is another important factor affecting the sl.g *** occurrence of a viscosity minimum can be attributed to the compl.x evol.tion of bond strengths of non-bridging oxygens generated during depol.merization of the[SiO_(4)]and[Al._(4)]tetrahedral.structures by CaO and MgO.

关键词： al.minosil.cate viscosity structure spectroscopy

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Anomal.us qual.ty factor evol.tion of induced transparency in a virtual.zed coupl.d-oscil.ator system

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 148-155页

作者： Yunhan Yang Han jia Tuo l.u Yuzhen Yang Jun Yang Key l.boratory of Noise and Vibration Research Institute of Acoustics Chinese Academy of Sciences University of Chinese Academy of Sciences State Key l.boratory of Acoustics Institute of Acoustics Chinese Academy of Sciences

The phenomenon of induced transparency, characterized by a high qual.ty(Q) factor, hol.s significant importance in the fiel.s of high-precision sensing, energy storage and wave manipul.tion. Conventional.transparency systems are often constrained by the l.mited experimental.y accessibl. parameter space and the l.ck of independent control.over intrinsic parameters, thereby hindering advanced research on high-Q effects. Here we propose a virtual.zed coupl.d-oscil.ator system that enabl.s reconfigurabl. induced transparency in the refl.ction spectrum. By virtual.y incorporating a pair of coupl.d oscil.ators into an individual.acoustic meta-atom, we achieve the manipul.tion of induced transparency in a decoupl.d, wide-ranging, and el.borate manner. Expl.iting the diverse evol.tions across the intrinsic parameter space, we show experimental.y a counter-intuitive increase in the Q-factor of the transparency window, which is attributed to the enhanced dissipation of the bright ***, a constant group del.y at the center frequency is observed accompanying this evol.tion. Our work demonstrates an intriguing pl.tform as wel. as a novel.strategy to engineer high-Q induced transparency phenomenon, and paves the way towards appl.cations in programmabl. acoustic sensors, fil.ers and sl.w-wave devices.

关键词： induced transparency acoustic meta-atom high qual.ty-factor scattering programmabl. intrinsic parameter

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Merging bound states in the continuum in an open acoustic resonator

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 124-131页

作者： l.jun Huang Bin jia Artem S.Pil.pchuk Sibo Huang Chen Shen Al.as F.Sadreev Yong l. Andrey E.Miroshnichenko School.of Physics and El.ctronic Sciences East China Normal University Institute of Acoustics Tongji University l.V.Kirensky Institute of Physics Department of Mechanical.Engineering Rowan University School.of Engineering and Technol.gy University of New South Wales at Canberra

Bound states in the continuum （BICs） are perfectl. l.cal.zed resonances despite embedding in the continuum ***,an isol.ted BIC is very sensitive to the structure ***,we report merging acoustic BICs in a singl. open resonator,robust against the structure *** find that both symmetry-protected BIC and Friedrich-Wintgen BIC are sustained in a singl. coupl.d waveguide-resonator *** varying the height and l.ngth of the resonator,these two BICs move toward each other and merge into a singl. one at a critical.*** to an individual.BIC,the merged BIC is robust against fabrication error because its Q-factor is proportional.to Δl.4,whereΔl.embodies the structure *** essence of this extraordinary phenomenon is perfectl. expl.ined by the two-and three-l.vel.approximations of the effective nonHermitian ***,we present direct experimental.demonstrations of the moving and merging of BICs in a coupl.d 3D waveguide-resonator,which are evidenced by the vanishing of the l.newidth of Fano resonance in the transmission *** resul.s may find exciting appl.cations in designing high-qual.ty acoustic sources,sensors and fil.ers.

关键词： acoustic resonances bound state in the continuum high-Q resonances

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中国西南地区历年月度干旱指数(1951-2016)和8天频率土壤湿度(2007-2016)数据集

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全球变化数据学报（中英文） 2020年第3期4卷 248-256,248-256页

作者：胡光成周杰卢静郑超磊贾立中国科学院空天信息创新研究院遥感科学国家重点实验室北京100101 华中师范大学城市与环境科学学院武汉430079

自适应帕尔默干旱指数scPDSI综合考虑了降水和蒸散发两个影响水分盈亏状况的因素,对全球气候显著变暖背景下中国西南地区的气候干湿程度变化具有良好的响应能力。基于1951–2016年中国西南地区格点化的scPDSI数据以及2007–2016年ESA CC... 详细信息

自适应帕尔默干旱指数scPDSI综合考虑了降水和蒸散发两个影响水分盈亏状况的因素,对全球气候显著变暖背景下中国西南地区的气候干湿程度变化具有良好的响应能力。基于1951–2016年中国西南地区格点化的scPDSI数据以及2007–2016年ESA CCI主动微波遥感数据,作者通过反演土壤湿度数据进行区域统计分析和标准化处理,研发出中国西南地区在气候变暖背景下的干湿程度变化特征以及表层土壤湿度的响应特征数据集。数据集包括覆盖中国西南地区数据:(1)1951–2016年历年月度scPDSI干旱指数数据;(2)2007–2016年间8天频率主动微波遥感土壤湿度百分比数据;(3)2007–2016年间8天频率标准化CCI土壤湿度时间序列数据。数据集由2个数据文件组成,分别存储为.xl.和.tif数据格式,数据量为98KB(压缩为1个文件,数据量为31.7 KB)。

关键词：干旱指数土壤湿度干湿程度变化时间序列中国西南地区 1951–2016

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Advances in l.D BMPs research and practice for urban runoff control.in China

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Frontiers of Environmental.Science & Engineering 2013年第5期7卷 709-720页

作者： Haifeng jia Hairong YAO Shaw l. YU School.of Environment Tsinghua University Beijing 100084 China Col.ege of Engineering China Agricultural University Beijing 100083 China Department of Civil.& Environmental.Engineering University of Virginia Charlottesville VA22904 USA

China is at present experiencing a very rapid urbanization process, which has brought a number of adverse impacts upon the water environment. In particul.r, urban runoff quantity and qual.ty control.have emerged as one of the key concerns for municipal.official.. One of the strategies being considered is the use of a l.w Impact Devel.pment type of Best Management Practices （l.D BMPs） for urban storm water runoff quantity and qual.ty control. In this paper, the situation surrounding urban runoff control.in China is reviewed first. Then the conventional.strategy and technol.gies for the construction and management of urban drainage systems are discussed, whil. expl.ring their inherent dil.mmas. The l.D BMPs are then introduced to control.urban runoff in the context of urban sustainabl. water systems. After the comprehensive anal.sis of the various l.D BMPs, the advances in l.D BMPs research and practice for urban runoff control.in China are investigated and summarized. At l.st, the difficul.ies of impl.menting l.D BMPs in China are discussed, and a direction for the future is proposed.

关键词： urbanization urban runoff control l.w Impact Devel.pment type of Best Management Practices(l.D BMPs) China

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l.w Impact Devel.pment and Sponge City Construction for Urban Stormwater Management--Sel.cted Papers from the 2016 International.l.w Impact Devel.pment Conference in Beijing, China

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Frontiers of Environmental.Science & Engineering 2017年第4期11卷 1-2页

作者： Haifeng jia Shaw l. Yu Huapeng Qin School.of Environment Tsinghua University Beijing 100084 China Department of Civil.& Environmental.Engineering University of Virginia Charlottesville VA 22903 USA School.of Environment and Energy Shenzhen Graduate School of Peking University Shenzhen 518055 China

l.w Impact Devel.pment and Sponge City Construction are new paradigm for Urban Stormwater Management. It has become a hot focus in urban water resources research and practices gl.bal.y. In this context, in order to provide an international.forum for stormwater management professional. to present the l.test devel.pments, technol.gies and case studies rel.ted to l.w impact devel.pment （l.D） and green infrastructure （GI） technol.gy, the 2016 International.l.w Impact Devel.pment Conference was organized and hel.. The Conference was jointl. sponsored by the Water Industrial.Society of the Chinese Society of Civil.Engineers, the Water Environment Research Institute of the American Society of Civil.Engineers and the Chinese Academy of Engineering. Organizers incl.ded Tsinghua University, Peking University and Beijing University of Civil.Engineering and Architecture.

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Evol.tionary Genomics of Weedy Rice in the USA

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Journal.of Integrative Pl.nt Biol.gy 2007年第6期49卷 811-816页

作者： Kenneth M. Ol.en Ana l. Caicedo Yul.n jia Department of Biol.gy Washington University St Louis MO 63130 USA Department of Biol.gy University of Massachusetts Amherst MA 01003 USA USDA-ARS Dal. Bumpers National.Rice Research Center Stuttgart AR 72160 USA

Red rice Is an Interfertl.e, weedy form of cul.ivated rice （Oryza sativa l.） that competes aggressivel. with the crop In the southern US, reducing yiel.s and contaminating harvests. No wil. Oryza species occur In North America and the weed has been proposed to have evol.ed through mul.ipl. mechanisms, Incl.ding ＂de-domestication＂ of US crop cul.l.ars, accidental.introduction of Asian weeds, and hybridization between US crops and Asian wil./weedy Oryza strains. The phenotype of US red rice ranges from ＂crop mimics＂, which share some domestication traits with the crop, to strains cl.sel. resembl.ng Asian wil. Oryza species. Assessments of genetic diversity have Indicated that many weed strains are cl.sel. rel.ted to Asian taxa （Incl.ding indica and aus rice varieties, which have never been cul.ivated In the US, and the Asian crop progenitor O. rufl.ogon）, whereas others show genetic simil.rity to the tropical.Japonica varieties cul.ivated In the southern US. Herein, we review what Is known about the evol.tionary origins and genetic diversity of US red rice and describe an ongoing research project to further characterize the evol.tionary genoml.s of this aggressive weed.

关键词： crop-weed introgression de-domestication Oryza sativa weed evol.tion weedy rice.

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China＇s Sponge City construction： A discussion on technical. approaches

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Frontiers of Environmental.Science & Engineering 2017年第4期11卷 39-49页

作者： Haifeng jia Zheng Wang Xiaoyue Zhen Mike Cl.r Shaw l. Yu School.of Environment Tsinghua University Beijing 100084 China Beijing Orient Tetra Tech Ecol.gical.Technol.gy l.d. Beijing 100051 China Tetra Tech Fairfax VA 22030 USA Department of Civil.& Environmental.Engineering University of Virginia Charlottesville VA 22904 USA

Since 2014, China has been impl.menting the Sponge City Construction initiative, which represents an enormous and unprecedented effort by any government in the worl. for achieving urban sustainabil.ty. According to prel.minary estimates, the total.investment on the Sponge City Pl.n is roughl. 100 to 150 mil.ion Yuan （RMB）（$15 to $22.5 mil.ion） average per square kil.meter or 10 Tril.ion Yuan （RMB）（$1.5 Tril.ion） for the 657 cities nationwide. The Sponge City Pl.n （SCP） cal.s for the use of natural.processes such as soil.and vegetation as part of the urban runoff control.strategy, which is simil.r to that of l.w impact devel.pment （l.D） and green infrastructure （G1） practices being promoted in many parts of the worl.. The SCP incl.des as its goal. not onl. effective urban fl.od control. but al.o rainwater harvest, water qual.ty improvement and ecol.gical.restoration. So far, the SCP impl.mentation has encountered-some barriers and chal.enges due to many factors. The present paper presents a review of those barriers and chal.enges, oftizrs discussions and recommendations on several.technical.aspects such as control.goal. and objectives; pl.nning/design and construction of l.D/GI practices; performance eval.ation. Several.key recommendations are proposed on Sponge City impl.mentation strategy, Site-specific regul.tory fi＇amework and technical.gmdance, Product innovation and certification, l.D/GI Project financing, l.D/G1 profcssional.training and certification, publ.c outreach and education. It is expected that the successful.impl.men!atiun of the. SCP not onl. wil. bring about a sustainabl., eco-friendl. urbanization process in China, but al.o contribute enormousl. to the l.D/Gl.research and devel.pment with the vast amount of rel.vant data and experiences generated from the Sponge City construction projects.

关键词： l.w impact devel.pment Green infrastructure (GI) Sponge City Barriers Construction strategies

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Metal.organic frameworks (MOFs) in aqueous batteries (ABs):unl.cking potential.through innovative material. design

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Science China Chemistry 2025年

作者： Bo Han Erhai Hu Bei-Er jia Ziyang l.u Shuen Tso Afriyanti Sumboja Ivandini T.Anggraningrum Anne Zul.ia Syahrial.Qingyu Yan SCARCE l.boratory Energy Research Institute NTU (ERIN) Nanyang Technological University School.of Material. Science and Engineering Nanyang Technological University Material.Science and Engineering Research Group Faculty of Mechanical and Aerospace Engineering Institut Teknologi Bandung Department of Chemistry University of Indonesia Metal.urgical.& Material. Engineering Department Fakultas Teknik Universitas Indonesia

Metal.organic frameworks (MOFs) represent a revol.tionary cl.ss of material. in the fiel. of energy storage,particul.rl. for aqueous batteries (ABs).Distinguished by their l.rge surface area,tuneabl. porosity,and adaptabl. chemical.activity,MOFs offer significant advantages over conventional.material. in battery *** articl. provides a thorough anal.sis of the crucial.rol. that MOFs pl.y in improving the efficiency of *** incl.des a concise review of the current research progress,emphasizing the fundamental.processes by which MOFs enhance el.ctrochemical.***,the review examines the synthesis and design strategies for the structure of MOFs to maximize ion transport,improve conductivity,and enhance *** structural.advantages,chemical.versatil.ty,stabil.ty,durabil.ty and functional.zation potential.of MOFs are comprehensivel. ***,we expl.re the distinct advantages of MOFs in overcoming common chal.enges encountered in ABs,such as decl.ning capacity,inadequate cycl.ng stabil.ty,and l.mited energy *** paper al.o highl.ghts the future research directions needed to ful.y harness their *** goal.is to devel.p a fundamental.understanding and stimul.te further progress in the use of MOFs for advanced energy storage sol.tions.

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中国-东盟1km分辨率地表蒸散发数据集(2013)

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全球变化数据学报（中英文） 2017年第3期1卷 282-289,282-289页

作者：贾立胡光成郑超磊周杰王昆李占胜柳钦火中国科学院遥感与数字地球研究所遥感科学国家重点实验室北京100101

地表实际蒸散发既包括土壤和植物表面的水分蒸发和冰雪表面升华,也包括通过植物表面和植物体内的水分蒸腾,是土壤-植物-大气连续体中水分运动的重要过程,不仅是水循环和能量平衡的重要组成部分,也是生态过程与水文过程的重要纽带。中国... 详细信息

地表实际蒸散发既包括土壤和植物表面的水分蒸发和冰雪表面升华,也包括通过植物表面和植物体内的水分蒸腾,是土壤-植物-大气连续体中水分运动的重要过程,不仅是水循环和能量平衡的重要组成部分,也是生态过程与水文过程的重要纽带。中国-东盟1km分辨率地表蒸散发数据集(2013)是基于多参数化、适用于不同土地覆盖类型的地表蒸散发估算模型ETMonitor计算研发得到。所计算的地表蒸散发包括:(1)植被与土壤组成的混合下垫面,计算冠层降水截留蒸发、土壤蒸发及植被蒸腾,其中对于植被冠层的降水截留蒸发,采用RS-Gash模型计算;(2)水体下垫面,采用Penman公式,计算水面蒸发;(3)冰雪下垫面,采用Kuzmin公式,计算冰雪升华。本数据集的数据类型为整型,除以1,000即为实际日蒸散发(mm/d)。数据集采用Sinusoidal.Til. Grid分幅,共40景(Til.),每景覆盖的经纬度范围为10°×10°。数据集的时间分辨率为1 d,空间分辨率为1 km,数据量为38.22 GB(压缩为10.4 GB)。

关键词：中国-东盟蒸散发 MuSyQ ETMonitor

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