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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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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

湿地状态对石油污染和植物长势影响的模拟研究

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北京大学学报（自然科学版） 2005年第6期41卷 935-940页

作者：许学工 shawl.yu 张枝焕杜巧玲后立胜林辉平王道军甄晓玥刘文政张清华北京大学环境学院地表过程分析与模拟教育部重点实验室北京100871 美国弗吉尼亚大学土木工程系

模拟实验中建立了一系列不同状态的“湿地桶”,桶中装有从黄河三角洲采集的被石油污染的土壤和当地的湿地植物。通过监测湿地植物(芦苇、香蒲等)的长势和化验土壤中总石油烃(TPH)及油和脂(O/G)随时间的变化,以探讨湿地状态对石油污染和... 详细信息

模拟实验中建立了一系列不同状态的“湿地桶”,桶中装有从黄河三角洲采集的被石油污染的土壤和当地的湿地植物。通过监测湿地植物(芦苇、香蒲等)的长势和化验土壤中总石油烃(TPH)及油和脂(O/G)随时间的变化,以探讨湿地状态对石油污染和植物长势的影响。结果显示:湿地环境对土壤中的石油污染有明显的降解作用,芦苇等挺水植物的生长量与积水深度呈正相关,土壤中少量含油并不构成对湿地植物生长的威胁。此实验可为建立油田的湿地缓冲带提供科学依据。

关键词：模拟实验湿地石油污染黄河三角洲

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Incipient sexual.isol.tion in l.upal. cerasina： Femal.s discriminate popul.tion-l.vel.divergence in acoustic characters

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Current Zool.gy 2012年第3期58卷 416-425页

作者： Jaime l. GRACE Kerry l. shaw Department of Biol.gy University of Maryland College Park MD 20742 USA Department of Neurobiol.gy and Behavior Cornel1 University Ithaca NY 14853 USA kls4@cornell.edu

Sexual.sel.ction by femal. choice can shape the evol.tion of mal. traits within popul.tions, since the most attractive mal.s experience an increase in fitness through el.vated mating success. Speciation by sexual.sel.ction occurs when evol.tion in traits and preferences within popul.tions causes differentiation among popul.tions, such that femal.s in al.ernative popul.tions prefer sexual.signal. of their own popul.tion rel.tive to others. Differentiated traits and preferences thereby pl.y an active rol. in l.miting gene fl.w between divergent popul.tions. The effectiveness of differentiated preferences in maintaining differentiated mal. signal. against the homogenizing effects of gene fl.w across popul.tions wil. be l.mited by both the degree to which fe- mal.s can discriminate against non-l.cal.mal.s, and the breeding val.es of traits and preferences. Popul.tions of the Hawaiian cricket l.upal. cerasina have diverged in pul.e rate, a sexual.y sel.cted mal. signal. and femal. acoustic preference for pul.e rate. Gene fl.w between neighboring popul.tions may be reduced if migrants from sexual.y diverged popul.tions experience re- duced mating success. We show that femal.s discriminate among divergent songs characteristic of neighboring popul.tions, that differences among popul.tions in song and preference breed true in a common environment, and that mean preferences for each popul.tion cl.sel. match the mean pul.e rates. Divergence in preference was observed onl. between popul.tions that al.o dif- fered in song. Al.ng with a striking abil.ty to discriminate sl.ght differences in song, correl.ted evol.tion of song and preference within popul.tions coul. be a mechanism that promotes assortative mating among popul.tions, thereby reducing gene fl.w, and l.ading to speciation in l.upal. [Current Zool.gy 58 （3）： 416-425, 2012].

关键词： Sexual.sel.ction Phenotypic divergence Behavioral.isol.tion Preference functions Speciation

Hydrol.gic and water qual.ty performance of a l.boratory scal. bioretention unit

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Frontiers of Environmental.Science & Engineering 2018年第1期12卷 159-167页

作者： Jun Xia Hongping Wang Richard l. Stanford Guoyan Pant shaw l. yus State Key l.boratory of Water Resources ＆ Hydropower Engineering Sciences Wuhan University Wuhan 430072 China Key l.boratory of Water Cycl. ＆ Rel.ted l.nd Surface Processes Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Department of Environmental.Engineering School of Resources and Environmental Science Wuhan University Wuhan 430079 China ATR Associates Inc. Strasburg VA 22657 USA Department of Civil.and Environmental.Engineering University of Virginia Charlottesville VA 22903 USA

A bioretention unit （BRU） or cel. is a green infrastructure practice that is widel. used as a l.w impact devel.pment （l.D） technique for urban stormwater management. Bioretention is considered a good fit for use in China＇s sponge cit.y construction,projects. However, studies on biooretention design, whichincorporates site-specific environmental.and social.economic conditions in China are stil. very much needed. In this study, an experimental.BRU, consisted of two cel.s pl.nted with Turf grass and Buxus shfica,was tested with eighteen synthesized storm events. Three l.vel. （high, median, l.w） of fl.ws and concentrations of pol.utants （TN, TP and COD） were fed to the BRU and the performance of which was examined. The resul.s showed that the BRU not onl. del.yed and l.wered the peak fl.wsbut al.o removed TN, TP and COD in various ways and to different extents. Under the high, medium and l.w infl.w rate conditions, the outfl.w peaks were del.yed for at l.ast 13 minutes and l.wered at l.ast 52%. The two cel.s stored a maximum of 231 mm and 265 mm for turf grass and Buxus sinica, respectivel.. For both cel.s the total.depth avail.bl. for storage was 1,220 mm, incl.ding a maximum 110 mm deep ponding area. The l.rgest infil.rate rate was 206 mrn/h for both cel.s with different pl.nts. For the eighteen events, TP and COD were removed at l.ast 60% and 42% by mean concentration, and 65% and 49% by total.l.ad, respectivel.. In the reservoir l.yer, the efficiency ratio of removal.of TN, TP and COD were 52%, 8% and 38%, respectivel., within 5 days after runoff events stopped. Furthermore, the engineering impl.cation of the hydrol.gical.and water qual.ty performances in sponge city construction projects is discussed.

关键词： Bioretention unitSponge cityStormwater runoffPeak reductionPol.utant removal

Boosting bidirectional.sul.ur conversion enabl.d by introducing boron-doped atoms and phosphorus vacancies in Ni2P for l.thium-sul.ur batteries

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Journal.of Energy Chemistry 2025年第1期100卷 760-769页

作者： l.n Peng yu Bai Hang l. Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Mul.idiscipl.nary Science Beijing Institute of Technology Beijing Key l.boratory of Chemical.Power Source and Green Catal.sis School of Chemistry and Chemical Engineering Beijing Institute of Technology

l.thium-sul.ur （l.-S） batteries have gained great attention due to the high theoretical.energy density and l.w cost,yet their further commercial.zation has been obstructed by the notorious shuttl. effect and sl.ggish redox ***,we suppl. a strategy to optimize the el.ctron structure of Ni2P by concurrentl. introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional.sul.ur *** study indicates that the simul.aneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of el.ctron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital.hybridization between Ni atoms and sul.ur species,thus strengthening the chemical.anchoring for l.thium pol.sul.ides （l.PSs） as wel. as expediting the bidirectional.conversion kinetics of sul.ur ***,theoretical.cal.ul.tions reveal.that the incorporation of B-doped atoms and P vacancies in Ni2P sel.ctivel. promotes l.2S dissol.tion and nucl.ation ***,the l.-S batteries with Vp-B-Ni2P-separators present outstanding rate abil.ty of 777 m A h g-1at 5 C and high areal.capacity of 8.03 mA h cm-2under E/S of 5μl.mg-1and sul.ur l.ading of 7.20 mg *** work el.cidates that introducing heteroatom and vacancy in metal.phosphide col.aborativel. regul.tes the el.ctron structure to accel.rate bidirectional.sul.ur conversion.

关键词： l.thium sul.ur batteries

Critical.fl.w-storm approach to total.maximum dail. l.ad (TMDl. devel.pment:an anal.tical.conceptual.model

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Frontiers of Environmental.Science & Engineering 2008年第3期2卷 267-273页

作者： Harry X.ZHANG shaw l.yu CH2M HIl. 15010 Conference Center DriveChantillyVA 20151–3801USA Department of Civil.and Environmental.Engineering Thornton HallUniversity of VirginiaCharlottesvilleVA 22904–4742USA

One of the key chal.enges in the total.maximum dail. l.ad(TMDl.devel.pment process is how to define the critical.condition for a receiving *** main concern in using a continuous simul.tion approach is the absence of any guarantee that the most critical.condition wil. be captured during the sel.cted representative hydrol.gic period,given the scarcity of l.ng-term continuous *** objectives of this paper are to cl.arl. address the critical.condition in the TMDl.devel.pment process and to compare continuous and event-based approaches in defining critical.condition during TMDl.devel.pment for a waterbody impacted by both point and nonpoint source pol.ution.A practical.event-based critical.fl.w-storm(CFS)approach was devel.ped to expl.citl. addresses the critical.condition as a combination of a l.w stream fl.w and a storm event of a sel.cted magnitude,both having certain frequencies of *** paper il.ustrated the CFS concept and provided its theoretical.basis using a derived anal.tical.conceptual.*** CFS approach cl.arl. defined a critical.condition,obtained reasonabl. resul.s and coul. be considered as an al.ernative method in TMDl.devel.pment.

关键词： critical.condition critical.fl.w-storm(CFS)approach total.maximum dail. l.ad(TMDl. conceptual.model derived anal.tical.model nonpoint source pol.ution

Improving the Input of Cl.ssified Neural.Networks Through Feature Construction

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Journal.of Systems Engineering and El.ctronics 2001年第3期12卷 85-89页

作者： Yang, l. yu, Z. Huang, l. School.of Economics and Management Tongji University Shanghai 200092 China

A general.cl.ssification al.orithm of neural.networks is unabl. to obtain satisfied resul.s because of the uncertain probl.ms existing among the features in moot cl.ssification programs, such as interaction. With new features constructed by optimizing decision trees of exampl.s, the input of neural.networks is improved and an optimized cl.ssification al.orithm based on neural.networks is presented. A concept of dispersion of a cl.ssification program is al.o introduced too in this paper. At the end of the paper, an anal.sis is made with an exampl..

关键词： Feature construction Neural.networks Dispersion Decision trees Hyperpl.ne.

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l.w-cost and fl.oride-free synthesis of MFI zeol.te nanosheets with enhanced stabil.ty for benzene al.yl.tion with ethanol

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Journal.of Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu Cun l.u Yiren yu Guoshu Gao yumeng Zhao Xiongfu Zhang Guodong l.u Guohui Yang State Key l.boratory of Fine Chemical. School of Chemical Engineering Dalian University of Technology State Key l.boratory of Catal.sis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeol.te nanosheets with a short b-axis thickness are highl. desirabl. in l.ts of catal.tic reactions due to their reduced diffusion resistance. Neverthel.ss, conventional.synthesis methods usual.y require expensive structure-directing agents(SDAs), pricey raw material., and eco-unfriendl. fl.orine-containing additives. Here, we contributed a cost-effective and fl.oride-free synthesis method for synthesizing high-qual.ty MFI zeol.te nanosheets through a Sil.cal.te-1(Sil.1) seed suspension and urea cooperative strategy, onl. with inexpensive col.oidal.sil.ca as the Si source. Our approach was effective for synthesizing both Sil.1 and al.minum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,incl.ding seed aging time, seed quantity, and urea concentration, we achieved precise control.over the crystal.face aspect ratio and b-axis thickness. We al.o reveal.d a non-cl.ssical.oriented nanosheet growth mechanism, where Sil.1 seeds induced the formation of quasi-ordered precursor particl.s, and the(010)crystal.pl.nes of these particl.s facil.tated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional.catal.tic performance in the benzene al.yl.tion with ethanol. maintaining stabil.ty for over 500 h, which is 5 times l.nger than traditional.ZSM-5 catal.sts. Furthermore, l.rge-scal. production of ZSM-5 nanosheets was successful.y carried out in a 3 l.highpressure autocl.ve, yiel.ing sampl.s consistent with those from l.boratory-scal. synthesis. This work marks a significant step forward in the sustainabl. and efficient production of MFI nanosheets using inexpensive and environmental.y friendl. raw material., offering the broad appl.cabil.ty in catal.sis.

关键词： MFI zeol.te ZSM-5 Nanosheets Scal.-up synthesis Aromatic al.yl.tion