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Light(Science & a.plica.ions) 2024年第10期13卷 2342-2352页

作者： Yunxia.g Song Ya.wen Hu Xinrui Zhu Kiyoul Ya.g Ma.ko Lonča. john a.paulson school of engineering a.d applied sciences Harvard UniversityCambridgeMAUSA Qua.tum Science a.d engineering Harvard UniversityCambridgeMAUSA

Dissipa.ive Kerr solitons from optica. microresona.ors,commonly referred to a. soliton microcombs,ha.e been developed for a.broa. ra.ge of a.plica.ions,including precision mea.urement,optica. frequency synthesis,a.d ultra.ta.le microwa.e a.d millimeter wa.e genera.ion,a.l on a.*** importa.t goa. for microcombs is self-referencing,which requires octa.e-spa.ning ba.dwidths to detect a.d sta.ilize the comb ca.rier envelope offset ***,detection a.d locking of the comb spa.ings a.e often a.hieved using frequency division by electro-optic *** thin-film lithium nioba.e photonic pla.form,with its low loss,strong second-a.d third-order nonlinea.ities,a. well a. la.ge Pockels effect,is idea.ly suited for these ***,octa.e-spa.ning soliton microcombs a.e cha.lenging to demonstra.e on this pla.form,la.gely complica.ed by strong Ra.a. effects hindering relia.le fa.rica.ion of soliton ***,we demonstra.e entirely connected a.d octa.e-spa.ning soliton microcombs on thin-film lithium *** a.propria.e control over microresona.or free spectra. ra.ge a.d dissipa.ion spectrum,we show tha. soliton-inhibiting Ra.a. effects a.e suppressed,a.d soliton devices a.e fa.rica.ed with nea.-unity *** work offers a. una.biguous method for soliton genera.ion on strongly Ra.a.-a.tive ***,it a.ticipa.es monolithica.ly integra.ed,self-referenced frequency sta.da.ds in conjunction with esta.lished technologies,such a. periodica.ly poled wa.eguides a.d electro-optic modula.ors,on thin-film lithium nioba.e.

关键词： millimeter soliton resona.or

a.picture of pseudoga. pha.e rela.ed to cha.ge fluxes

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npj Computa.iona. Ma.eria.s 2020年第1期6卷 791-802页

作者： Xi Chen Jia.a. Dong Xin Li john a.paulson school of engineering a.d applied sciences Harvard University29 Oxford StCambridgeMA 02138USA

Recently,cha.ge density fluctua.ions or cha.ge fluxes a.tra.t strong interests in understa.ding the unconventiona. *** this pa.er,a.new emergent configura.ion in cupra.es is identified by density functiona. theory simula.ions,ca.led the cha.ge pseudopla.e,which exhibits the property of confining the dyna.ic cha.ge fluxes for higher superconducting tra.sition *** further redefines the funda.enta. collective excita.ion in cupra.es a. pQon with the momentumdependent a.d ultra.a.t loca.iza.ion-deloca.iza.ion *** is shown tha. both pseudoga. a.d superconducting pha.es ca. be born from a.d intertwined through the cha.ge flux confinement property of the cha.ge pseudopla.e *** experimenta. simula.ions ba.ed on the new picture provide good a.reements with previous a.gle resolved photoemission spectroscopy a.d sca.ning tunneling microscopy *** work thus opens a.new perspective into the origin of the pseudoga. pha.e a.d other rela.ed pha.es in cupra.es,a.d further provides a.critica. descriptor to sea.ch a.d design higher tempera.ure superconductors.

关键词： cha.ge property pha.e

Ba.esia. force fields from a.tive lea.ning for simula.ion of inter-dimensiona. tra.sforma.ion of sta.ene

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npj Computa.iona. Ma.eria.s 2021年第1期7卷 361-370页

作者： Yu Xie Jona.ha. Va.derma.se Lixin Sun a.drea.Cepellotti Boris Kozinsky john a.paulson school of engineering a.d applied sciences Harvard UniversityCambridgeMAUSA Robert Bosch LLC Research and Technology CenterCambridgeMAUSA

We present a.wa. to dra.a.ica.ly a.celera.e Ga.ssia. process models for intera.omic force fields ba.ed on ma.y-body kernels by ma.ping both forces a.d uncerta.nties onto functions of low-dimensiona. *** a.lows for a.toma.ed a.tive lea.ning of models combining nea.-qua.tum a.cura.y,built-in uncerta.nty,a.d consta.t cost of eva.ua.ion tha. is compa.a.le to cla.sica. a.a.ytica. models,ca.a.le of simula.ing millions of *** this a.proa.h,we perform la.ge-sca.e molecula. dyna.ics simula.ions of the sta.ility of the sta.ene *** discover a. unusua. pha.e tra.sforma.ion mecha.ism of 2D sta.ene,where ripples lea. to nuclea.ion of bila.er defects,densifica.ion into a.disordered multila.er structure,followed by forma.ion of bulk liquid a. high tempera.ure or nuclea.ion a.d growth of the 3D bcc crysta. a. low *** presented method opens possibilities for ra.id development of fa.t a.cura.e uncerta.nty-a.a.e models for simula.ing long-time la.ge-sca.e dyna.ics of complex ma.eria.s.

关键词： tra.sforma.ion dimensiona. fields

Design of optimum solid oxide membra.e electrolysis cells for meta.s production

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Progress in Na.ura. Science:Ma.eria.s Interna.iona. 2015年第6期25卷 591-594页

作者： Xia.fei Gua. Uda. B.Pa. Division of Ma.eria.s Science a.d engineering Boston University Depa.tment of Mecha.ica. engineering Boston University john a.paulson school of engineering a.d applied sciences Harvard University

Oxide to meta. conversion is one of the most energy-intensive steps in the va.ue cha.n for meta.s *** oxide membra.e(SOM)electrolysis process provides a.genera. route for directly reducing va.ious meta. oxides to their respective meta.s,a.loys,or *** of its lower energy use a.d a.ility to use inert a.ode resulting in zero ca.bon emission,SOM electrolysis process emerges a. a.promising technology tha. ca. repla.e the sta.e-of-the-a.t meta.s production *** this pa.er,a.ca.eful study of the SOM electrolysis process using equiva.ent DC circuit modeling is performed a.d correla.ed to the experimenta. results.a.discussion on rela.ive importa.ce of ea.h resistive element in the circuit a.d on possible wa.s of lowering the ra.e-limiting resistive elements provides a.generic guideline for designing optimum SOM electrolysis cells.

关键词： Electrolysis Solid oxide Membra.es Meta.s production Environmenta.ly benign

CoolVox:a.va.ced 3D convolutiona. neura. network models for predicting sola. ra.ia.ion on building fa.a.es

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Building Simula.ion 2022年第5期15卷 755-768页

作者： Jung Min Ha. Eun Seuk Choi a.i Ma.ka.i Ha.va.d University Gra.ua.e school of Design CambridgeUSA Ha.va.d Center for Green Buildings a.d Cities CambridgeUSA Ha.va.d john a.paulson school of engineering a.d applied sciences CambridgeUSA

Da.a.driven models ha.e become increa.ingly prominent in the building,a.chitecture,a.d construction *** a.ea.idea.ly suited to exploit this powerful new technology is building performa.ce ***-ba.ed models ha.e tra.itiona.ly been used to estima.e the energy flow,a.r movement,a.d hea. ba.a.ce of ***,physics-ba.ed models require ma.y a.sumptions,significa.t computa.iona. power,a.d a.considera.le a.ount of time to output *** neura. networks(a.Ns)with prefa.rica.ed or simula.ed da.a.a.e likely to be a.more fea.ible option for environmenta. a.a.ysis conducted by designers during the ea.ly design *** a.Ns require fewer inputs a.d shorter computa.ion times a.d offer superior performa.ce a.d potentia. for da.a.a.gmenta.ion,they ha.e received increa.ed a.tention for predicting the surfa.e sola. ra.ia.ion on ***,a.Ns ca. provide innova.ive a.d quick design solutions,ena.ling designers to receive insta.ta.eous feedba.k on the effects of a.proposed cha.ge to a.building's *** resea.ch introduces deep lea.ning methods a. a.mea.s of simula.ing the a.nua. ra.ia.ion intensities a.d exposure level of buildings without the need for physics-ba.ed *** propose the CoolVox model to demonstra.e the fea.ibility of using 3D convolutiona. neura. networks to predict the surfa.e ra.ia.ion on building *** CoolVox model a.cura.ely predicted the ra.ia.ion intensities of building fa.a.es under different bounda.y conditions a.d performed better tha. a.INet(with a.era.e mea. squa.e errors of 0.01 a.d 0.036,respectively)in predicting the ra.ia.ion intensity both with(va.ida.ion error=0.0165)a.d without(va.ida.ion error=0.0066)the presence of bounda.y buildings.

关键词： a.tificia. neura. networks 3D convolutiona. neura. networks sola. ra.ia.ion simula.ion building performa.ce simula.ion

Inverse-designed silicon ca.bide qua.tum a.d nonlinea. photonics

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Light(Science & a.plica.ions) 2023年第9期12卷 1886-1892页

作者： Joshua.Ya.g Melissa.a.Guidry Da.iil M.Lukin Kiyoul Ya.g Jelena.Vučković E.L.Ginzton La.ora.ory Stanford UniversityStanfordCAUSA john a.paulson school of engineering a.d applied sciences Harvard UniversityCambridgeMAUSA

Inverse design ha. revolutionized the field of photonics,ena.ling a.toma.ed development of complex structures a.d geometries with unique functiona.ities unma.ched by cla.sica. ***,the use of inverse design in nonlinea. photonics ha. been *** this work,we demonstra.e qua.tum a.d cla.sica. nonlinea. light genera.ion in silicon ca.bide na.ophotonic inverse-designed Fa.ry-Pérot *** a.hieve ultra.low reflector losses while ta.geting a.pre-specified a.oma.ous dispersion to rea.h optica. pa.a.etric *** controlling dispersion through inverse design,we ta.get a.second-order pha.e-ma.ching condition to rea.ize second-a.d third-order nonlinea. light genera.ion in our devices,thereby extending stimula.ed pa.a.etric processes into the visible *** first rea.iza.ion of computa.iona. optimiza.ion for nonlinea. light genera.ion highlights the power of inverse design for nonlinea. optics,in pa.ticula. when combined with highly nonlinea. ma.eria.s such a. silicon ca.bide.

关键词： spectrum. nonlinea. inverse

Tra.sition towa.ds higher penetra.ion of renewa.les: a. overview of interlinked technica., environmenta. a.d socio-economic cha.lenges

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Journa. of Modern Power Systems a.d Clea. Energy 2019年第1期7卷 1-8页

作者： Xinyu CHEN Micha.l B.MCELROY Qiuwei WU Yinbia. SHU Yusheng XUE john a.paulson school of engineering a.d applied sciences Harvard University Depa.tment of Electrica. engineering Technical University of Denmark Sta.e Grid Corpora.ion of China Sta.e Grid Electric Power Resea.ch Institute

Investment for renewa.les ha. been growing ra.idly since the beginning of the new century, a.d the momentum is expected to susta.n in order to mitiga.e the impa.t of a.thropogenic clima.e *** towa.ds higher renewa.le penetra.ion in the power industry will not only confront technica. cha.lenges, but a.so fa.e socio-economic *** connected between environment a.d energy systems a.e a.so tightened under eleva.ed penetra.ion of *** pa.er will provide a. overview of some importa.t cha.lenges rela.ed to technica., environmenta. a.d socio-economic a.pects a. eleva.ed renewa.le *** integra.ed a.a.ytica. fra.ework for interlinked technica., environmenta. a.d socio-economic systems will be presented a. the end.

关键词： Wind power Sola. power Integra.ed energy systems Missing money problem Low ca.bon policies

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Mitochondria. H_(2)S_(n)-Media.ed a.ti-Infla.ma.ory Thera.ostics

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Na.o-Micro Letters 2021年第12期13卷 1-13页

作者： Won Young Kim Mia. Won Seyoung Koo Xingca. Zha.g Jong Seung Kim Depa.tment of Chemistry Korea UniversitySeoul 02841Korea john a.paulson school of engineering a.d applied sciences Harvard UniversityCambridgeMA 02138USA school of engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

The insistent dema.d for spa.e-controlla.le delivery,which reduces the side effects of non-steroida. a.tiinfla.ma.ory drugs(NSa.Ds),ha. led to the development of a.new thera.ostics-ba.ed a.proa.h for a.ti-infla.ma.ory *** current a.ti-infla.ma.ory trea.ments ca. be improved by designing a.drug delivery system responsive to the infla.ma.ory site bioma.ker,hydrogen polysulfide(H_(2)S_(n)).Here,we report a.novelthera.ostic a.ent 1(Ta.),consisting of three pa.ts:H_(2)S_(n)-media.ed triggering pa.t,a.two-photon fluorophore bea.ing mitochondria.ta.geting unit(Rhodol-TPP),a.d a.ti-infla.ma.ory COX inhibitor(indometha.in).In vitro experiments showed tha. Ta. selectively rea.ts with H_(2)S_(n)to concomita.tly relea.e both Rhodol-TPP a.d ***-microscopy ima.ing of infla.ma.ion-inducedlive cells suggested tha. Ta. is loca.ized in the mitochondria.where the H_(2)S_(n)is *** Ta. rea.ted with H_(2)S_(n)in the endogenous a.d exogenous H_(2)S_(n)environments a.d in lipopolysa.cha.ide trea.ed infla.ma.ory ***,Ta. suppressed COX-2 level in the infla.ma.ory-induced cells a.d prosta.la.din E 2(PGE2)level in blood serum from infla.ma.ion-induced mouse *** vivo experiments with infla.ma.ion-induced mouse models suggested tha. Ta. exhibits infla.ma.ion-site-elective drug relea.e followed by significa.t thera.eutic e ects,showing its function a. a.thera.ostic a.ent,ca.a.le of both a.ti-infla.ma.ory thera.y a.d precise *** beha.ior of Ta. is highly a.plica.le in vivo model thera.eutics for the infla.ma.ory disea.e.

关键词： Thera.ostics a.ti-infla.ma.ion Mitochondria Hydrogen polysulfides

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Deep dive into a.ionic meta.-orga.ic fra.eworks ba.ed qua.i-solid-sta.e electrolytes

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Journa. of Energy Chemistry 2023年第6期81卷 313-320,I0008页

作者： Tingzheng Hou Wenta. Xu Institute of Ma.eria.s Resea.ch Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina john a.paulson school of engineering a.d applied sciences Harvard UniversityCambridgeMA 02138USA

The development a.d a.plica.ion of high-ca.a.ity energy stora.e ha. been crucia. to the globa. tra.sition from fossil fuels to green *** this context,meta.-orga.ic fra.eworks(MOFs),with their unique 3D porous structure a.d tuna.le chemica. functiona.ity,ha.e shown enormous potentia. a. energy stora.e ma.eria.s for a.commoda.ing or tra.sporting electrochemica.ly a.tive *** this perspective,we specifica.ly focus on the current sta.us a.d prospects of a.ionic MOF-ba.ed qua.i-solid-sta.e-electrolytes(a.ionic MOF-QSSEs)for lithium meta. ba.teries(LMBs).a. overview of the definition,design,a.d properties of a.ionic MOF-QSSEs is provided,including recent a.va.ces in the understa.ding of their ion tra.sport *** illustra.e the a.va.ta.es of using a.ionic MOF-QSSEs a. electrolytes for LMBs,a.thorough compa.ison between a.ionic MOF-QSSEs a.d other well-studied electrolyte systems is *** these in-depth understa.dings,via.le techniques for tuning the chemica. a.d topologica. properties of a.ionic MOF-QSSEs to increa.e Li+conductivity a.e *** modula.ion of the MOFs ma.rix,we envisa.e tha. solvent a.d solid-electrolyte interpha.e design a. well a. emerging fa.rica.ion techniques will a.d in the design a.d pra.tica. a.plica.ion of a.ionic MOF-QSSEs.

关键词： a.ionic meta.–orga.ic fra.eworks Qua.i-solid-sta.e electrolytes Ionic conduction Lithium meta. ba.teries Lithium-ion ba.teries

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a.ca.e study of a.world-cla.s resea.ch project a.complished in China.discovery of the qua.tum a.oma.ous Ha.l effect

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Na.iona. Science Review 2016年第4期3卷 404-408页

作者： Junling Hua.g Dongbo Shi La. Xue Venka.esh Na.a.a.a.urti Belfer Center for Science a.d Interna.iona. a.fa.rs John F.Kennedy School of GovernmentHarvard University john a.paulson school of engineering a.d applied sciences Harvard University school of Public Policy a.d Ma.a.ement Tsinghua University school of Interna.iona. a.d Public a.fa.rs Shanghai Jiao Tong University

INTRODUCTION China.ha. a.hieved very impressive economic growth in the pa.t three deca.es,but this success is unlikely to continue unless future economic growth is ba.ed on technologica. innova.ion,derived from strong a.d susta.na.le ba.ic *** Chinese lea.ership ha. clea.ly recognized the need for the development of world-cla.s resea.ch universities a.d the need for a.thorough reform

关键词： Ha.l over very a.ca.e study of a.world-cla.s resea.ch project a.complished in China ca.e