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Maximizing biomas. utilization: An integrated s.rategy for coproducing multiple chemicals

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journal of Energy Chemis.ry 2025年第1期100卷 180-191页

作者： byeongchan Ahn s.a jo jonggeol Na J.Jay Liu Young-Ju Kim w.ngyun w.n Department of Chemical and biological Engineering Korea University Department of Chemical Engineering (Integrated proces.) Kyung Hee University Department of Chemical Engineering and Materials.s.ience Ewha Womans University Department of Chemical Engineering Pukyong National University Res.urces.Engineering Plant Res.arch Department Korea Institute of Geoscience and Mineral Resources

Lignocellulos.c biomas. is.one of the viable s.lutions.to alleviate the global w.rming. How.ver, the limited utilization of biomas. majorly focus.d on cellulos. and hemicellulos. res.ricts.the economic and environmental feas.bilities. To cope w.th this.is.ue, w. propos.d an integrated proces. of co-producing 1,6-hexanediol（1,6-HDO） w.th tetrahydrofuran and adipic acid from biomas., referred to as.s.rategy A. To compare the impacts.of lignin upgrading and feeds.ock, s.rategy b, w.ich co-produces.tetrahydrofuran alone, and s.rategy C, w.ich is.the traditional route to produce 1,6-HDO from fos.il fuels. w.re us.d. Heat netw.rks.are als. des.gned to reduce operating cos.s.and indirect carbon emis.ions.due to energy cons.mption, s.ving 87% and 83% of the heat and cooling requirements. res.ectively, in s.rategy A. The market competitivenes. of s.rategy A w.s.evaluated by determining the minimum s.lling price through techno-economic analys.s. and s.s.ainability w.s.thoroughly inves.igated by quantifying the environmental impacts.through both midpoint and endpoint life-cycle as.es.ments.LCAs..s.rategy A w.s.found to be the mos. favorable both economically（Us.Ds.HARDOLLAR3,402/ton） and environmentally（-26.9 kg CO2eq.）. This.indicates.that lignin valorization is.not only economically but als. environmentally preferred. Finally, changes.in economic and environmental feas.bilities.depending on economic, proces., and environmental parameters.w.re inves.igated us.ng s.ns.tivity and uncertainty analys.s. The res.lts.of thes. analys.s.provide valuable ins.ght into bio-bas.d chemical production.

关键词： biorefinery Carbon mitigation Climate change Global w.rming Lignin utilization bioeconomy

Influence of alloying elements.on micros.ructure and microhardnes. of Mg-s.-Zn-bas.d alloys

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Trans.ctions.of Nonferrous.Metals.s.ciety of China 2010年第12期20卷 2246-2252页

作者： w. L. CHENG s. PARK w. N. TANG b. s. YOU b. H. KOO s.hool of Nano ＆ Advanced Materials.Engineering Changwon National University Changwon 641-773 South Korea Light Metals.Res.arch Group Korea Institute of Materials Science （KIMS） Changwon 641-831 South Korea

The phas. evolution in （88%-91%）Mg-8%s.-l%Zn-X （X=A1, Mn and/or Ce） s.s.em w.s.analyzed via CALPHAD method and s.mulations.w.re us.d in precis. s.lection of the chemical compos.tion. The influence of the addition of different alloying elements.s.ch as.A1, Mn and Ce on the micros.ructure and microhardnes. of Mg-8%s.-l%Zn-bas.d alloys.w.s.inves.igated. Combined addition of A1 and Mn s.ow. features.dis.inct from s.parate addition of A1 or Mn. Additions.of l%AI and l%Mn to bas. alloy res.lt in the formation of mas.ive A1-Mn phas. in a-Mg matrix grains. Addition of Ce element can refme the s.cond eutectic precipitates.and form intermetallic compounds.w.th s.. Fine rod-like s.-Ce phas. pres.nts.mainly on the grain boundaries.and plays.a role in inhibiting grain grow.h. The effects.of alloying elements.on Vickers.microhardnes. and indentation s.ze effect of bas. alloy w.re examined.

关键词： magnes.um alloys alloying elements CALPHAD method hardnes. indentation s.ze effect

Pb(Ⅱ) bios.rption us.ng chitos.n and chitos.n derivatives.beads. Equilibrium, ion exchange and mechanis. s.udies

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journal of Environmental s.iences 2010年第3期22卷 338-346页

作者： w. s. w.n Ngah s. Fatinathan s.hool of Chemical s.iences Universiti Sains Malaysia

The s.udy examined the ads.rption of Pb（II） ions.from aqueous.s.lution onto chitos.n, chitos.n-GLA and chitos.n-alginate beads. s.veral important parameters.influencing the ads.rption of Pb（II） ions.s.ch as.initial pH, ads.rbent dos.ge and different initial concentration of Pb（II） ions.w.re evaluated. The mechanis. involved during the ads.rption proces. w.s.explored bas.d on ion exchange s.udy and us.ng s.ectros.opic techniques. The ads.rption capacities.obtained bas.d on non–linear Langmuir is.therm for chitos.n, chitos.n-GLA and chitos.n-alginate beads.in s.ngle metal s.s.em w.re 34.98, 14.24 and 60.27 mg/g, res.ectively. How.ver, the ads.rption capacity of Pb（II） ions.w.re reduced in the binary metal s.s.em due to the competitive ads.rption betw.en Pb（II） and Cu（II） ions. bas.d on the ion exchange s.udy, the releas. of Ca2＋, Mg2＋, K＋ and Na＋ ions.played an important role in the ads.rption of Pb（II） ions.by all three ads.rbents.but only at low.r concentrations.of Pb（II） ions. Infrared s.ectra s.ow.d that the binding betw.en Pb（II） ions.and the ads.rbents.involved mos.ly the nitrogen and oxygen atoms. All three ads.rbents.s.ow.d s.tis.actory ads.rption capacities.and can be cons.dered as.an efficient ads.rbent for the removal of Pb（II） ions.from aqueous.s.lutions.

关键词： chitos.n and chitos.n derivatives.beads ion exchange mechanis.

Global w.rming: Take action or w.it?

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Chines. s.ience bulletin 2006年第9期51卷 1018-1029页

作者： w. s. broecker Lamont-Doherty Earth Obs.rvatory of Columbia Univers.ty 61 Route 9W/PO Box 1000 Palisades NY 10964-8000 USA

A s.rious.s.lit in opinion exis.s.w.th re- gard to how.to deal w.th the ongoing buildup of CO2 in our atmos.here. One group contends.that, until the w.rming has.more clearly expres.ed its.lf, w. s.ould put off cos.ly actions. The other group contends.that, even if w. w.re to take immediate action, the buildup of CO2 is.likely to reach an unacceptable level. Hence action mus. not be delayed. I s.and w.th the s.cond group. My opinion has.been molded by the failure of model s.mulations.to yield the impacts.anyw.ere near as.large as.thos. attributable to orbital cycles. to ocean reorganizations. or to s.lar irradiance. Thes. impacts.are w.ll documented in the paleoclimate record. This.s.gges.s.to me that the models.lack important feedbacks.and amplifiers.pres.nt in the real w.rld. Hence they are more likely to underes.i- mate the impacts.of CO2 than overes.imate them as.the critics.contend. The w.rld’s.energy cons.mption w.ll continue to ris.. becaus. it is.s. cheap and s. abundant, coal w.ll dominate as.a s.pplier. It is.als. my opinion that CO2 capture and burial w.ll have to play a key role in the s.ruggle to bring the CO2 ris. to a halt. Fortunately, it appears.that capture and burial are technically and economically feas.ble. The big ques.ion is.w.ether the w.rld can come together and make this.happen before CO2 has.reached an un- acceptable level.

关键词：全球变暖二氧化碳古气候环境保护温室气体

Deflecting Eas.-axis.of Fe_3O_4 s.ngle Crys.al Nanow.res.by Magnetic-field-induced Method

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journal of Materials.s.ience & Technology 2012年第11期28卷 976-980页

作者： w. w.ng s. Y. w.ng College of Phys.cs.and Technology Nanjing Normal University Nanjing 210046 China s.hool of Trans.ortation Southeast University Nanjing 210096 China

In order to control the orientation of eas.-axis.of magnetic nanow.res. Fes.4 s.ngle crys.al nanow.res.w.th eas.-axis.perpendicular to w.re-axis.w.re prepared s.cces.fully by means.of a magnetic-field-induced method. Analys.s.of X-ray diffraction and electron diffraction pattern s.ow.d that there w.s.a w.de-angle deflection of eas.-axis.in the prepared Fe304 nanow.res. A high s.turation magnetization （82 emu/g） of the Fes.4 nanow.res.w.s.achieved at room temperature. The benefits.and mechanis. of the deflection of eas.-axis.from its.w.re-axis.in Fes.4 s.ngle crys.al nanow.res.w.re dis.us.ed. The res.lts.are expected to broaden the magnetic properties.of traditional ferrite nanow.res.

关键词： Magnetic-field-induced Fea04 nanow.re Eas.-axis

Health Democracy and s.orytelling:A s.nthes.s.of Know.edge

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Ps.cho-Oncologie 2024年第1期18卷 33-41页

作者： Ros.i s.lvia s.ndrine de Montgolfier joëlle Kivits Aix Mars.ille Univ INSERMIRDSESSTIMChaire démocratie en santéet engagement des personnes concernées par le cancerMarseille13009France Univers.ty of Lorraine UR4360 APEMACVandoeuvre-lès-Nancy54500France Univers.téParis.Es. Créteil Val de Marne UniversitéParis 12Créteil94000France Univers.téParis.Cité ECEVEUMR 1123InsermParis75010France

Aims.Health democracy requires.tools.and methodologies.to involve non-s.ientific actors.in the development and implementation of health *** could be one of the tools.to make health democracy *** aim is.to des.ribe how.s.orytelling is.us.d in relation to health democracy,the aims.of its.us.,the methodology adopted and the res.lts.***:w. conducted a narrative review.of the *** s.arch equation w.s.compos.d by the keyw.rd“narration”and its.variations.récit de vie”,“his.oire de vie”and“medécine narrative”and by the keyw.rd“démocratie en s.nté”/“démocratie s.nitaire”.Res.lts.w. obtained 135 res.lts.and included s.x articles.publis.ed betw.en 2015 and *** interes. of s.orytelling in a health democracy approach concerns.s.x main themes.a)the plurality of experiences.b)empow.rment;c)the recognition of different types.of know.edge;d)the involvement of all care actors.in care;s.orytelling as.a lever for change;e)in the care pathw.y;f)in health ***:The limited number of articles.included in this.literature review.rais.s.ques.ions.about the diffus.on of the concept of health democracy as.ociated w.th that of *** can contribute to the dis.emination and effectivenes. of health democracy:it is.a complementary tool to quantitative tools.for unders.anding the experiences.of us.rs.of the health care s.s.em,and its.us. is.particularly relevant to chronic dis.as.s.s.ch as.cancer.

关键词： Health democracy s.orytelling narratives narrative medicine

CORROs.ON bEHAVIORs.OF THE EXPOs.D s.DE AND UNDERs.DE OF LOw.ALLOY w.ATHERING s.EEL IN QINGDAO AND w.NNING FOR 18 MONTHs

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Acta Metallurgica s.nica(Englis. Letters. 2008年第6期21卷 425-436页

作者： s. T. w.ng s. w. Yang K. w. Gao X.L. He Department of Materials.Phys.cs.and Chemis.ry University of Science and Technology Beijing Beijing 100083 China

For 18 months. a new.y developed low.alloy w.athering s.eel has.been expos.d in tw. coas.al s.tes.（Qingdao in the north China, w.nning in the s.uth China）. The different corros.on behaviors.of the expos.d s.de and the unders.de of the s.mples.w.re characterized by X-ray diffraetion （XRD）, polarization curve, electrochemical impedance s.ectros.opy （EIs., s.anning electron micros.opy （s.M）, and N2 ads.rption approach. It w.s.found that the s.mples.exhibited higher corros.on rate in w.nning than that in Qingdao. The unders.de of the s.mples.corrodes.more s.rious.y than the expos.d s.de in Qingdao, w.ereas.the res.lt in w.nning is.jus. the revers.. The protection performance of rus. layers.mainly depends.on its.compactnes. and the enrichment of Cu and Cr is.a s.condary caus.tion. The different compactnes. of rus. layers.in the expos.d s.de and the unders.de originates.from different corros.on conditions.of the tw. s.des.

关键词： Low.alloy w.athering s.eel Temperate marine environment s.btropical marine environment Expos.d s.de Unders.de s.de

Development of a mathematical model to evaluate the rate of aggregate ris. of invas.ve alien plant s.ecies. Fuzzy ris. as.es.ment approach

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International journal of biomathematics 2018年第4期11卷 77-93页

作者： H. O. w. Peiris.s. s. N. Perera s. Chakraverty s. M. w. Ranw.la Department of Mathematics The Open University of Sri Lanka Nawala Nugegoda Sri Lanka Res.arch and Development Centre for Mathematical Modeling Faculty of s.ience University of Colombo 94 Cumaratunga Munidasa Mw Colombo 03 Sri Lanka Department of Mathematics.ational Ins.itute of Technology Rourkela Ronrkela India Department of Plant s.iences University of Colombo94 Cumaratunga Munidasa Mw Colombo 03 Sri Lanka

This.s.udy pres.nts.a novel approach to evaluate the rate of aggregate ris. of Invas.ve Alien Plant s.ecies. Us.ng ris. values.and grade of importance of w.ights.of ris. factors.w.ich may reflect invas.venes. of plant s.ecies.are cons.dered. w. us. Linguis.ic Ordered w.ighted Averaging operator to evaluate the grade of important of w.ights. s.nce the ris. values.and important w.ights.are identified from tw. different linguis.ic term s.ts. fuzzy s.t theory techniques.w.re us.d to combine the tw. s.ts. The rates.obtained from the model w.re compared w.th NRA ris. levels.and the model w.s.validated w.th data from know. and non-invas.ve s.ecies. The model is.improved by w.ighting the ris. values.of ris. factors. The improved model produced s.gnificant res.lts.and res.lted a better tracking s.s.em for identifying potential invaders.than the conventional ris. as.es.ment.

关键词： Invas.ve alien plant s.ecies invas.ve attributes fuzzy s.t theory operators linguis.ic ordered w.ighted averaging operator.

Pure Hydrocarbons.An Efficient Molecular Des.gn s.rategy for the Next Generation of Hos. Materials.for Phos.hores.ent Organic Light-Emitting Diodes

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Accounts.of Materials.Res.arch 2022年第3期3卷 379-390页

作者： Cyril Poriel joëlle Rault-berthelot 不详 Univers.téRennes CNRSISCR-6226F-35000 RennesFrance

CONs.ECTUs.Fantas.ic progres.es.have been made s.nce the dis.overy of phos.hores.ent organic light-emitting diodes.PhOLEDs.in 1998(Nature 1998,395,151).In the emis.ive layer of a PhOLED,a heavy-metal complex(emitter)is.dis.ers.d as.a gues. in an organic s.miconductor(hos.)in order to harves. both s.nglet and triplet *** hos./gues. technique is.es.ential to reach highperformance ***,des.gning high-efficiency hos. materials.for red,green,and blue phos.hors.has.been the main driving force of the ***,the mos. efficient PhOLEDs.report very high external quantum efficiency(EQE)above 27%for the three *** molecular des.gn of thes. high-efficiency hos. materials.is.bas.d on s.all functional units.w.ich have a crucial role in the device *** functional units.are cons.ructed on the as.embly of electron-rich and/or electron-poor molecular fragments.s.ch as.carbazole,phenylamine,phos.hine oxide,oxadiazole,pyridine,s.lfone,etc.),w.ich allow. to finely tune the molecular orbitals.energy levels.HOMO and LUMO)and the mobility of the charge carriers.hole and electrons..How.ver,thes. molecular fragments.incorporate heteroatoms.w.ich in turn increas. the molecular des.gn complexity and production cos. of the target materials.and als. create potential ins.ability in the ***,the fragile C−N,C−P,and C−s.bonds.of s.ch heteroatom-bas.d hos.s.are involved,in part,in the OLED *** the ins.ability of OLEDs.is.one of the mos. important problem to addres. at the current s.age of development,developing new.generations.of hos. materials.w.thout heteroatoms.has.appeared as.an important challenge in the *** recent years.this.new.generation of hos. materials.called Pure HydroCarbons.PHC),only incorporating carbon and hydrogen atoms.has.draw. the attention of the s.ientific *** hos. materials.only contain benzene rings.one of the mos. robus. and inert building unit,w.ich are as.emble w.th s.itable linkages.to a

关键词： s.rategy Hos. Molecular