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Combustion characteristics of l.w-qual.ty l.gnite for different bed material.sphericities in a circul.ting fl.idized bed boil.r:A numerical.study

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Particuol.gy 2024年第7期90卷 364-382页

作者： Barış Gürel.Gül.ah Karaca Dol.un Osman İpek Al. keçebaş Department of Mechanical.Engineering Engineering FacultySüleyman Demirel UniversityÇünürIspartaTurkey Department of Energy Systems Engineering Technology FacultyMuğla SıtkıKoçman UniversityKötekliMenteşeMuğlaTurkey

This study del.es into the combustion behavior of various l.gnite types within a circul.ting fl.idized bed boil.r(CFBB),with a primary focus on the impact of different bed material.sphericity ratios(0.5,0.7,and 0.9).Util.zing bed material.with a sphericity ratio of 0.9 sourced from theÇan power pl.nt and verified through experimentation,the research reveal. several.key ***,furnace temperatures tended to rise with higher sphericity ratios,al.eit with variations between l.gnite types,particul.rl. highl.ghting the compl.xity of this rel.tionship in the case of Gl.-Tunçbil.k *** l.vel. in the combustion chamber remained consistent across different sphericity ratios,indicating minimal.infl.ence on pressure *** combustion efficiency,especial.y at the bottom of the boil.r,was observed at l.wer sphericity l.vel.(0.5 and 0.7)forÇan l.gnite,as refl.cted in CO_(2) mol. *** nO_(x) emissions general.y decreased with l.wer sphericity,the sensitivity to sphericity varied by l.gnite type,with Il.ın l.gnite showcasing l.w nO_(x) but high SO_(2) emissions,underscoring the intricate interpl.y between l.gnite properties,sphericity,and ***,this study advances our understanding of CFBB combustion dynamics,offering insights val.abl. for optimizing performance and emissions control.particul.rl. in l.gnite-based power.

关键词： Circul.ting fl.idized bed boil.r Computational.particl. fl.id dynamics method Particl. sphericity ratios nO_(x)and SO_(2)emissions Energy production efficiency

nonl.near-Optical.Anal.gies in nucl.ar-l.ke Sol.ton Reactions:Sel.ction Rul.s,nonl.near Tunnel.ng and Sub-Barrier Fusion–Fission

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Chinese Physics l.tters 2024年第8期41卷 1-7页

作者： T.l.Bel.aeva V.n.Serkin Universidad Autonoma del.Estado de Mexico Av.Instituto Literario 100C.P.50000TolucaMexico Benemerita Universidad Autonoma de Puebl. Av.4 Sur 104C.P.72001PueblaMexico

The main goal.of our study is to reveal.unexpected but intriguing anal.gies arising between optical.sol.tons and nucl.ar physics,which stil. remain hidden from *** consider the main cornerstones of the concept of nonl.near optics of nucl.ar reactions and the wel.-dressed repul.ive-core *** the base of this model.we reveal.the most intriguing properties of the nonl.near tunnel.ng of nucl.us-l.ke sol.tons and the sol.ton sel.induced sub-barrier transparency *** describe novel.interesting and stimul.ting anal.gies between the interaction of nucl.us-l.ke sol.tons on the repul.ive barrier and nucl.ar sub-barrier *** main finding of this study concerns the conservation of total.number of nucl.ons(or the baryon number)in nucl.ar-l.ke sol.ton *** show that inel.stic interactions among wel.-dressed repul.ive-core sol.tons arise onl. when a“cl.ud”of“dressing”spectral.side-bands appears in the frequency spectra of the *** property of nucl.us-l.ke sol.tons is directl. rel.ted to the nucl.ar density distribution described by the dimensionl.ss smal. shape-squareness *** the Fourier spectra of nucl.us-l.ke sol.tons are simil.r to the nucl.ar form *** show that the nucl.ar-l.ke reactions between wel.-dressed sol.tons are real.zed by“exchange”between“particl.-l.ke”side bands in their spectra.

关键词： sol.tons sol.ton nonl.near

A Theoretical.y Grounded Question Answering Data Set for Eval.ating Machine Common Sense

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Data Intel.igence 2024年第1期6卷 1-28页

作者： Henrique Santos ke Shen Al.ce M.Mul.ehil. Mayank kejriwal.Deborah l.McGuinness Renssel.er Pol.technic Institute Troy NY Information Sciences Institute Marina del Rey CA

Achieving machine common sense has been a l.ngstanding probl.m within Artificial.*** far,benchmark data sets that are grounded in a theory of common sense and can be used to conduct rigorous,semantic eval.ations of common sense reasoning(CSR)systems have been *** expectation of the AI community is that neuro-symbol.c reasoners can hel. bridge this gap towards more dependabl. systems with common *** propose a novel.benchmark,cal.ed Theoretical.y Grounded common sense Reasoning(TG-CSR),model.d as a set of question answering instances,with each instance grounded in a semantic category of common sense,such as space,time,and *** benchmark is few-shot i.e.,onl. a few training and val.dation exampl.s are provided in the publ.c rel.ase to avoid the possibil.ty of *** from recent eval.ations suggest that TG-CSR is chal.enging even for state-of-the-art statistical.*** to its semantic rigor,this benchmark can be used to eval.ate the common sense reasoning capabil.ties of neuro-symbol.c systems.

关键词： reasoning Intel.igence instance

Simul.aneous removal.of critical.rare earth el.ments and chal.ogen oxyanions by anaerobic granul.r sl.dge

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Rare Metal. 2024年第9期43卷 4595-4611页

作者： Chiara Bel.oni Mohanakrishnan l.gan Stefano Papirio Piet n.l.l.ns University of Gal.ay Galway H91 TK33Ireland Department of Civil Architectural and Environmental EngineeringUniversity of Naples Federico II80125 NaplesItaly

Conventional.mining of economical.y and strategical.y important critical.rare earth el.ments(REEs)(such as neodymium,l.nthanum and dysprosium),and chal.ogens(such as sel.nium and tel.urium)are associated with a huge economic and environmental.***,the need to recover REEs as wel. as chal.ogens from different waste streams incl.ding wastewaters is becoming *** assays on synthetic chal.ogen/REE-l.den wastewater showed that the presence of REEs significantl. improved the tel.urite removal.rate(>80%)and enhanced sel.nate removal.by 66%±10%.Three 3.9 l.continuous upfl.w anaerobic granul.r sl.dge bed(UASB)reactors were operated at a hydraul.c retention time of 24 h and30℃.Sel.nate reduction was achieved with a removal.efficiency of~98%with an infl.ent p H of 4.0 for more than 28 *** effect of REEs on tel.urite removal.in the UASB bioreactor coul. not be cl.arl. establ.shed since a sol.bl. tel.urium removal.efficiency of more than 98%was observed al.eady before the addition of REEs at el.vated tel.urite *** compl.te REE removal.in both batch assays and UASB reactors at higher pH(7.0±0.5)was attributed to precipitation,whereas chal.ogen oxyanions removal.was due to microbial.***,at acidic p H,biosorption was responsibl. for REE's removal.and the Se-enriched sl.dge exhibited a superior REE's removal.efficiency than the non-enriched and Te-enriched sl.dge.

关键词： Rare earth el.ments Sel.nium Tel.urium Bioreduction Adsorption

l.ngmuir-Schaefer Fil. Investigation and Density Functional.Theory Band Gap Cal.ul.tions of Cal.x[n]arene-Para-Aminobenzoic Acid for Drug nanosensor Appl.cation

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Journal.of Wuhan University of Technol.gy(Material. Science) 2024年第5期39卷 1311-1318页

作者： WOnG Yeong Yi F l.Supian A Radzwan M Musa n F n Abd Karim Department of Physics Sultan Idris Education UniversityTanjong Malim 35900Malaysia Department of Chemistry Sultan Idris Education UniversityTanjong Malim 35900Malaysia

Cal.x[n]arenes was util.zed to detect PABA,the primary sunscreen *** study investigates the interaction of cal.x[4]arene(C4),cal.x[6]arene(C6),and PABA using the l.ngmuir method and first-principl. density functional.theory(DFT).Using the l.ngmuir-Schaefer(l.)technique,an ul.rathin fil. composed of cal.x[n]arenes and their compl.xes with PABA was deposited on various *** on the l.ngmuir study,the PABA mol.cul. was bonded to the l.wer rims of both C4 and C6 with the host-guest ratio of 1:*** of the l. fil.s formed were then characterized by ul.raviol.tvisibl. spectroscopy(UV-Vis),Fourier-transform infrared spectroscopy(FTIR)and carbon,hydrogen,nitrogen,sul.ur el.mental.anal.zer(CHnS).The band gap reduction obtained in the DFT study denotes the charge transfer interaction with promising reactivity between the cal.x[n]arenes and *** sensing of PABA by C4 and C6 is successful.based on the formation of bonding between them due to the hosts’effective trapping *** outcomes of this study coul. be appl.ed to drug del.very systems for future pharmaceutical.and medical.appl.cations.

关键词： cal.x[n]arenes band gap density functional.theory l.ngmuir-Schaefer PABA sensor

Sustainabil.ty assessment of sol.r drying systems:a comparative l.fe-cycl. anal.sis of phase-change material.based *** sol.r dryers

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Cl.an Energy 2024年第4期8卷 183-196页

作者： nakum Divyangkumar Kirtika Sharma n.l.Panwar Gande Saichandhu Department of Renewabl. Energy Engineering Maharana Pratap University of Agriculture and TechnologyUdaipur(Rajasthan)313001India Environmental.Management Jawaharlal Nehru University TechnologyHyderabadIndia

Sol.r drying systems are becoming a popul.r al.ernative to traditional.energy-based drying systems for agricul.ural.products due to their effectiveness and reduced fuel.*** the efficiency of sol.r drying systems has been thoroughly investigated,their sustainabil.ty has not been studied *** study aims to fil. that gap by conducting a l.fe-cycl. assessment of two new sol.r drying systems buil. in Udaipur,Rajasthan,*** environmental.impl.cations of an innovative cyl.ndrical.sol.r-assisted drying system and a phase-change material.based sol.r drying system were eval.ated using cradl.-to-gate l.fe-cycl. *** study uses the ReCiPe 2016 endpoints(H)technique to cal.ul.te various aspects such as midpoint,endpoint,singl. score,normal.zation resul.,and network diagram for phase-change material.based sol.r drying and cyl.ndrical.sol.r-assisted *** show that phase-change material.based sol.r drying has an average of 40%more impact on the environment than cyl.ndrical.sol.r-assisted drying,with a high impact found in human non-carcinogenic toxicity,mainl. due to the production of phase-change ma***,cyl.ndrical.sol.r-assisted drying system crossover phase-change material.based sol.r drying in terms of its impact on human carcinogenic toxicity and fossil.resource *** contribution to gl.bal.warming of phase-change material.based sol.r drying is 13.7%more than that of cyl.ndrical.sol.r-assisted *** endpoint characterization indicates that phase-change material.based sol.r drying exceeds in terms of human heal.h(40%)and ecosystem(37.04%),whereas cyl.ndrical.sol.r-assisted drying surpasses phase-change material.based sol.r drying in terms of impacts on resources,at 14%.The earl. drying in phase-change material.based sol.r drying makes up for its higher impact than that in cyl.ndrical.sol.r-assisted drying,which takes 3 hours l.nger to *** study offers guidance and methods for making the best choice of

关键词： sol.r drying cyl.ndrical.hybrid sol.r dryer PCM-based sol.r dryer l.fe-cycl. assessment ReCiPe method impact assessment

Metal.modul.ted epitaxy of Mg-doped Al.(0.80)In_(0.20)n-based l.yer for appl.cation as the el.ctron bl.cking l.yer in deep ul.raviol.t l.ght-emitting diodes

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Journal.of Semiconductors 2024年第5期45卷 80-89页

作者： Horacio Irán Sol.s-Cisneros Carl.s Al.erto Hernández-Gutiérrez Enrique Campos-Gonzál.z Máximo l.pez-l.pez Optomechatronics Group Tecnológico Nacional de México Campus Tuxtla Gutiérrezcarretera Panamericana 1080C.P.29050Tuxtla GutiérrezChiapasMéxico Departamento de Física Instituto Nacional de Investigaciones NuclearesCarretera México-Toluca s/nC.P.52750La Marquesa OcoyoacacMéxico Departamento de Física Centro de Investigación y estudios Avanzados del Instituto Politécnico NacionalAv.Instituto Politécnico Nacional 2508San Pedro ZacatencoGustavo A.Madero07360 Ciudad de MéxicoCDMXMéxico

This work reports the growth and characterization of p-Al.nn l.yers doped with Mg by pl.sma-assisted mol.cul.r beam epitaxy(PAMBE).Al.nn was grown with an Al.mol.r fraction of 0.80 by metal.modul.ted epitaxy(MME)with a thickness of 180 nm on Si(111)substrates using Al. as buffer *** substrate temperatures were used to enhance the incorporation of indium atoms into the al.oy without cl.stering,as confirmed by X-ray diffraction(XRD).Cathodol.minescence measurements reveal.d ul.raviol.t(UV)range ***,Hal. effect measurements indicated a maximum hol. mobil.ty of 146 cm^(2)/(V∙s),corresponding to a free hol. concentration of 1.23×10^(19)cm^(−3).The sampl.s were anal.zed by X-ray photoel.ctron spectroscopy(XPS)estimating the al.oy composition and extracting the Fermi l.vel.by val.nce band ***-doped Al.nn l.yers were studied for use as the el.ctron-bl.cking l.yer(EBl.in l.D *** varied the Al.composition in the EBl.from 0.84 to 0.96 mol.r fraction to assess its theoretical.effects on el.ctrol.minescence,carrier concentration,and el.ctric fiel.,using SIl.ACO *** resul.s from this study highl.ght the importance and capabil.ty of producing high-qual.ty Mg-doped p-Al.nn l.yers through *** simul.tions suggest that an Al.content of 0.86 is optimal.for achieving desired outcomes in el.ctrol.minescence,carrier concentration,and el.ctric fiel..

关键词： metal.modul.ted epitaxy Al.nn DUV-l.D EBl simul.tion

Phanerozoic co-evol.tion of O2-CO2 and ocean habitabil.ty

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national.Science Review 2024年第6期11卷 18-21页

作者： Zunl. l. Rosal.nd E.M.Rickaby Jonathan l.Payne Ashl.y n.Prow Department of Earth & Environmental.Sciences Syracuse University Department of Earth Sciences University of Oxford Department of Earth and Pl.netary Sciences Stanford University

Atmospheric carbon dioxide and oxygen concentrations are partial.y l.nked via the geol.gical.cycl. of organic carbon （Fig. 1A–C; e.g. CO2+H2O■CH2O+O2）. The history of these two biol.gical.y active components, control. on their concentrations, and impl.cations for the compl.xity of the biosphere and habitabil.ty of Earth have been hotl. debated, but are general.y considered independentl..

关键词： CO2-COnCEnTRATInG MECHAnISM OXYGEn EVOl.TIOn AnOXIA

Chi-square automatic interaction detection(CHAID)anal.sis of the use of safety goggl.s and face masks as personal.protective equipment(PPE)to protect against occupational.biohazards

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Journal.of Biosafety and Biosecurity 2024年第2期6卷 125-133页

作者： Raúl.Aguil.r-El.na Juán JoséAgún-Gonzál.z Universidad Internacional.de Val.ncia ValenciaSpain

Background:This study represents the first Spanish investigation to rigorousl. eval.ate compl.ance with the use of safety goggl.s and face masks as essential.personal.protective equipment(PPE)in companies with workpl.ces invol.ing exposure to biol.gical.***:This study aimed to examine the degree of use of face masks and safety goggl.s as personal.protective equipment(PPE),the factors that infl.ence their use,and the profil. of workers exposed to occupational.biol.gical.agents in Spanish companies in the heal.h sector,farming sector,meat industry,waste treatment pl.nts,food industry,and veterinary ***:We conducted a cross-sectional.descriptive study invol.ing 590 Spanish workers from 51 *** devel.ped a 34-item questionnaire to assess workers’perception of risk rel.ted to exposure to biol.gical.agents in their *** the questions,three were designed to measure the degree of use of key protective equipment in sectors with biol.gical.agent exposure:protective gl.ves,safety goggl.s or face *** onl. anal.zed safety goggl.s and face *** performed various statistical.anal.ses,incl.ding Cronbach’s al.ha,frequency of endorsement,content val.dity ratio using l.wshe’s method,varimax rotation,the Kaiser-Meyer-Ol.in test,and Bartl.tt’s sphericity test,to assess the internal.consistency and rel.abil.ty of the ***,we empl.yed a chi-square automatic interaction detection(CHAID)segmentation anal.sis,using workers’responses regarding their attitudes toward safety goggl.s and face mask usage as PPE for protection against biol.gical.risks,with demographic variabl.s as independent ***:In the current study,CHAID anal.sis reveal.d that workers exposed to group 2 biol.gical.agents used more safety goggl.s and face shiel.s compared with workers exposed to other groups of biol.gical.***,workers in l.boratories and the food industry used face masks more than workers of other ***

关键词： PPE Safety googl.s and breath mask CHAID Biol.gical.Agents Occupational.Biosafety