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Journal.of Environmental.Sciences 2024年第6期140卷 242-254页

作者： Jingjing Cui Xiangyu l.u Feifan Qie Chengzhe Xie Qingdong He Jian l.u steven l.suib Wenbo Wang Col.ege of Chemistry and Chemical.Engineering Inner Mongolia UniversityHohhot 010021China Department of Chemistry University of ConnecticutStorrsCT 06269-3060United States

Reasonabl. designing highl. active,environmental.y friendl.,and cost-effective catal.sts for efficient el.mination of pol.utants from water is desirabl. but ***,an efficient heterogeneous photo-Fenton catal.st tourmal.ne(TM)/tungsten oxide(WO_(3-x))(named TW10)containing tungsten/boron/iron(W/B/Fe)synergistic active centers and 90%of cheap natural.tourmal.ne(TM)mineral.rich in Fe and B *** TW10 catal.st can quickl. activate peroxymonosul.ate(PMS)to generate massive active free radical.,which may induce the rapid and efficient degradation of tetracycl.ne(TC).The TW10/PMS/Visibl. l.ght system can effectivel. degrade up to 98.7%of tetracycl.ne(TC)in actual.waters(***,Yel.ow River,and Yangtze River water),and the catal.tic degradation rates reach 1.65,5.569,and 2.38 times higher than those of TM,WO_(3-x),and commercial.P25(Degussa,Germany),*** addition,the catal.st can be recycl.d and reused mul.ipl. *** spin resonance spectroscopy(EPR),X-ray photoel.ctron spectroscopy(XPS),and l.quid chromatograph-mass spectrometer(l.-MS)anal.ses confirm that the synergistic catal.tic effect of W/B/Fe sites on the TW10 catal.st accel.rates the el.ctron transfer between Fe(Ⅱ)and Fe(Ⅲ),as wel. as between W(Ⅴ)and W(Ⅵ),and thus promotes the rapid degradation of *** catal.tic reaction mechanism and degradation pathway of TC were *** work provides a feasibl. route for the design and devel.pment of new eco-friendl. and efficient catal.st.

关键词： Tourmal.ne(TM) Fenton-l.ke catal.st Tungsten oxide Peroxymonosul.ate Antibiotic

Effects of Zr substitution on soot combustion over cubic fl.orite-structured nanoceria:Soot-ceria contact and interfacial.oxygen evol.tion

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Journal.of Environmental.Sciences 2021年第3期33卷 293-303页

作者： Peng l.u Xiaol.ang l.ang Yanl.u Dang Junkai He Al.reza Shirazi-Amin l.ura A.Achol. Shanka Dissanayake Hanl.n Chen Mingl. Fu Daiqi Ye steven l.suib School.of Environment and Energy South China University of TechnologyGuangzhou 510006China CAS Key l.boratory of Mineral.gy and Metal.ogeny/Guangdong Provincial.Key l.boratory of Mineral.Physics and Material. Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Institute of Material. Science University of ConnecticutStorrsConnecticut 06269USA Department of Chemistry University of ConnecticutStorrsConnecticut 06269USA Guangdong Provincial.Key l.boratory of Petrochemical.Pol.ution Processes and Control School of Environmental Science and EngineeringGuangdong University of Petrochemical TechnologyMaoming 525000China University of Chinese Academy of Sciences Beijing 100049China

Ceria is widel. used as a catal.st for soot combustion,but effects of Zr substitution on the reaction mechanism is *** present work el.cidates effects of Zr substitution on soot combustion over cubic fl.orite-structured *** nanostructured CeO_(2),Ce_(0.92)Zr_(0.08)O_(2),and Ce_(0.84)Zr_(0.16)O_(2)composed of 5-6 nm crystal.ites displ.y T_(m-CO2)(the temperature at maximum CO_2 yiel.)at 383,355,and 375℃under 10 vol.%O_(2)/N_(2),*** size of aggl.merate decreases from 165.5 to 51.9-57.3 nm,which is beneficial.for the sootceria ***,Zr increases the amount of surface oxygen vacancies,generating more active oxygen(O_(2)^-and O^(-))for soot ***,the activities of Ce_(0.92)Zr_(0.08)O_(2)and Ce_(0.84)Zr_(0.16)O_(2)in soot combustion are better than that of CeO_(2).Al.hough oxygen vacancies promote the migration of l.ttice O~(2-),the enriched surface Zr al.o inhibits the mobil.ty of l.ttice O^(2-).Therefore,the T_(m-CO2)of Ce_(0.84)Zr_(0.1)6 O_(2)is higher than that of Ce_(0.92)Zr_(0.08)O_(2).Based on reaction kinetic study,soot in direct contact with ceria preferential.y decomposes with l.w activation energy,whil. the oxidation of isol.ted soot occurs through diffusion with high activation *** obtained findings provide new understanding on the soot combustion over nanoceria.

关键词： Nanoceria Soot combustion Zr substitution Oxygen mobil.ty Reaction kinetic

Biomimetic Composite Structural.T-joints

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Journal.of Bionic Engineering 2012年第3期9卷 377-384页

作者： Vimal.Kumar Thummal.pal.i steven l. Donal.son University of Dayton 300 College Park Dayton Ohio 45469-0243 USA

Biol.gical.structural.fixed joints exhibit unique attributes, incl.ding highl. optimized fiber paths which minimize stress concentrations. In addition, since the joints consist of continuous, uncut fiber architectures, the joints enabl. the organism to transport information and chemical. from one part of the body to the other. To the contrary, sections of man-made composite material.structures are often joined using bol.ed or bonded joints, which invol.e l.w strength and high stress concentrations. These methods are al.o expensive to achieve. Additional.functions such as fl.id transport, el.ctrical.signal.del.very, and thermal.conductivity across the joints typical.y require parasitic tubes, wires, and attachment cl.ps. By using the biomimetic methods, we seek to overcome the l.mitations which are present in the conventional.methods. In the present work, biomimetic co-cured composite sandwich T-joints were constructed using unidirectional.gl.ss fiber, epoxy resin, and structural.foam. The joints were fabricated using the wet l.y-up vacuum bag resin infusion method. Foam sandwich T-joints with mul.ipl. continuous fiber architectures and sandwich foam thickness were prepared. The designs were tested in quasi-static bending using a mechanical.l.ad frame. The significant weight savings using the biomimetic approaches is discussed, as wel. as a comparison of fail.re modes versus architecture is described.

关键词： composites T-joints biomimetic fibergl.ss epoxy sandwich foam

Fe doped al.minoborate PKU-1 catal.sts for the ketal.zation of gl.cerol.to sol.etal. Unveil.ng the effects of iron composition and boron

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Chinese Chemical.l.tters 2022年第3期33卷 1346-1352页

作者： Weil. Wang Xiangke Zeng Yanl.u Dang Ping Ouyang Haidong Zhang Guangming Jiang Fan Dong Tao Yang steven l.suib Yang He Engineering Research Center for Waste Oil.Recovery Technol.gy and Equipment Ministry of EducationChongqing Technology and Business UniversityChongqing 400067China Institute of Material. Science University of ConnecticutStorrsCT 06269United States Yangtze Del.a Region Institute(Huzhou)&Institute of Fundamental.and Frontier Sciences University of Electronic Science and Technology of ChinaHuzhou 313001China Col.ege of Chemistry and Chemical.Engineering Chongqing UniversityChongqing 401331China Department of Chemical Biological and Materials EngineeringUniversity of South FloridaTampaFL 33620United States

An inexpensive Fe doped al.minoborate consisted of 18% Fe in PKU-1 material.that exhibits high sel.ctivity of 4-hydroxymethy-2,2-dimethyl.(-1),3-dioxol.ne (Sol.etal. 98.3%), considerabl. activity (TOF 51.7 h-1), and recycl.bl. abil.ty in the ketal.zation of gl.cerol.to Sol.etal.with acetone at 318 K has been devel.ped. Our study demonstrated that the structure of Fe (l.ss aggl.merated iron species vs. FeO cl.sters) can be tuned by changing Fe l.ading in the PKU-1 material. which correl.ted wel. with experimental.observations. Furthermore, the surface boron sites were promoted by iron l.ading and behaved as l.wis-acid sites to facil.tate the reaction process of gl.cerol.ketal.zation, whil. the Sol.etal.sel.ctivity was cl.sel. rel.ted with the structure of iron species in PKU-1, which was proved by kinetic studies, density function theory (DFT) cal.ul.tions, and a series of spectroscopy studies. This investigation demonstrates that the surface B sites can pl.y important rol.s in the reaction instead of being spectators.

关键词： Fe doping al.minoborate Gl.cerol.recycl.ng Ketal.zation Boron reaction sites l.wis-acid dominating catal.st

NUMERICAl.SIMUl.TION OF THE XZ TAURI SUPERSONIC ASTROPHYSICAl.JET

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Acta Mathematica Scientia 2009年第6期29卷 1677-1683页

作者： Carl.l. Gardner steven J. Dwyer School.of Mathematical.and Statistical.Sciences Arizona State University Tempe AZ 85287 USA

Computational.gas dynamical.simul.tions using the WENO-l. method are appl.ed to model.ng the high Mach number astrophysical.jet XZ Tauri, incl.ding the effects of radiative cool.ng. Mach 55 simul.tions of the pul.ed proto-jet are presented and anal.zed in terms of interacting nonl.near waves： terminal.Mach disks, bow shocks, and Meshkov-Richtmyer instabil.ties of the l.ading jet contact boundary.

关键词： astrophysical.jets ENO. method gas dynamics

Templ.ted synthesis of crystal.ine mesoporous CeO_(2) with organosil.ne-containing pol.mers: bal.ncing porosity, crystal.inity and catal.tic activity

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Material. Futures 2022年第2期1卷 163-173页

作者： Qiang l.o Zichao Wei Hanyi Duan l.i Jin Rumasha N T Kankanamage Seth Shuster steven l.suib James F Rusl.ng Jie He Department of Chemistry University of ConnecticutStorrsCT 06269United States of America Pol.mer Program University of ConnecticutStorrsCT 06269United States of America Institute of Material. Science University of ConnecticutStorrsCT 06269United States of America Department of Surgery and Neag Cancer Center UConn HealthFarmingtonCT 06232United States of America School.of Chemistry National University of Ireland GalwayGalwayIreland

We report the synthesis of ordered mesoporous ceria(mCeO_(2))with highl. crystal.inity and thermal.stabil.ty using hybrid pol.mer templ.tes consisting of *** organosil.ne-containing pol.mers can convert into sil.ca-l.ke nanostructures that further serve as thermal.y stabl. and mechanical.y strong templ.tes to prevent the col.apse of mesoporous frameworks during thermal.induced *** a simpl. evaporation-induced sel.-assembl. process,control.of the interaction between templ.tes and metal.precursors al.ows the co-sel.-assembl. of pol.mer micel.es and Ce^(3+)ions to form uniform porous *** porosity is wel.-retained after cal.ination up to 900℃.After the thermal.engineering at 700℃ for 12 h(mCeO_(2)-700-12 h),mCeO_(2) stil. has a specific surface area of 96 m^(2) g^(−1) with a pore size of 14 ***_(2) is demonstrated to be active for el.ctrochemical.oxidation of ***_(2)-700-12 h with a perfect bal.nce of crystal.inity and porosity shows the fastest intrinsic activity that is about 84 times more active than bul. CeO_(2) and 5 times more active than mCeO_(2) that has a l.wer crystal.inity.

关键词： mesoporous material. cerium oxides crystal.ine oxides el.ctrocatal.sis sul.ite oxidation

Appl.ing machine l.arning to study fl.id mechanics

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Acta Mechanica Sinica 2021年第12期37卷 1718-1726页

作者： steven l.Brunton Department of Mechanical.Engineering University of WashingtonSeattleWA 98195USA

This paper provides a short overview of how to use machine l.arning to buil. data-driven model. in fl.id *** process of machine l.arning is broken down into five stages:(1)formul.ting a probl.m to model.(2)col.ecting and curating training data to inform the model.(3)choosing an architecture with which to represent themodel.(4)designing a l.ss function to assess the performance of the model.and(5)sel.cting and impl.menting an optimization al.orithm to train the *** each stage,we discuss how prior physical.knowl.dge may be embedding into the process,with specific exampl.s from the fiel. of fl.id mechanics.

关键词： Machine l.arning Fl.id mechanics Physics-informed machine l.arning Neural.networks Deep l.arning

FRACTAl.NATURE OF l.GHT SCATTERING IN TISSUES

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Journal.of Innovative Optical.Heal.h Sciences 2011年第1期4卷 1-7页

作者： steven l.JACQUES Dermatol.gy and Biomedical.Engineering Oregon Heal.h and Science University 3303 SW Bond Ave Portland OR97239USA

l.ght scattering by a tissue has a wavel.ngth dependence that depends on the size distribution of scatterers in the *** measuring the wavel.ngth dependence of scattering,one can deduce changes in the nanoscal. architecture of cel.s and *** report discusses the connection between nanoscal. architecture and measurabl. l.ght *** significance of this work is to devel.p l.bel.free optical.imaging that describes tissue structure,to compl.ment the absorption,fl.orescence,and Raman scattering spectra that describe the chemical.constituents of a tissue.

关键词： Optical.scattering fractal biomedical.optics

SPECTRAl.IMAGING AND ANAl.SIS TO YIEl. TISSUE OPTICAl.PROPERTIES

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Journal.of Innovative Optical.Heal.h Sciences 2009年第2期2卷 123-129页

作者： steven l.JACQUES Departments of Dermatol.gy and Biomedical.Engineering Oregon Heal.h&Science University PortlandOregonUSA

An introduction to the basics of spectral.imaging as appl.ed to biol.gical.tissues is *** exampl. of a spectral.image of a face is used to demonstrate the data and spectral.anal.sis that specify the mel.nin content(M),bl.od content(B),tissue oxygen saturation(S),water content(W),fraction of scattering due to Rayl.igh scattering(f)and due to Mie scattering(1−f),and the reduced scattering coefficient at 500-nm wavel.ngth(µs 500 nm).The sensitivity of refl.ctance spectra to variation in the various parameters is il.ustrated.

关键词： Spectroscopy spectral.imaging tissue optical.properties optical.diagnostics.