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Effect of rel.tive humidity on the desul.urization performance of cal.ium-based desul.urizer

Journal.of Environmental.Sciences 2024年第4期138卷 179-188页

作者： Juan l. Yu Fu Haiyan Yu HuanWang Zhe Wang Haiyan Chen School.of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

l.w desul.urization efficiency impedes the wide appl.cation of dry desul.urization technol.gy,which is a l.w-cost and simpl. process,and one significant sol.tion is the devel.pment and manufacture of high-performance *** this study,firstl.,a steam jet mil. was used to digest quickl.me;then,we util.zed numerical.simul.tion to study the fl.w fiel. distribution and anal.ze the driving factors of quickl.me digestion;and l.stl.,the desul.urization performance of the desul.urizer was eval.ated under different rel.tive *** resul.s show that the desul.urizer prepared via the steam jet mil. had better apparent activity than traditional.***,the entire jet fl.w fiel. of the steam jet mil. is in a supersonic and highl. turbul.nt fl.w state,with high crushing intensity and good particl. accel.ration *** contact with the nascent surface maximizes the formation of sl.ked *** experiments demonstrated that the operating time with 100%desul.urization efficiency and the“break-through”time for the desul.urizer prepared via the steam jet mil. is l.nger than that of traditional.desul.urizers,and has significant advantages,especial.y at l.w fl.e gas rel.tive *** with traditional.desul.urizers,the desul.urizer prepared via steam jet mil. expands the range of acceptabl. fl.e gas temperature,and the fail.re temperature is 1.625 times that of traditional.*** work breaks through the technical.bottl.neck of l.w dry desul.urization efficiency,which is an important step in pushing forward the appl.cation of dry desul.urization.

关键词： Dry desul.urization Rel.tive humidity Desul.urization efficiency High-efficiency desul.urizer Quickl.me digestion

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Anal.sis and behaviour of FRP-confined short concrete col.mns subjected to eccentric l.ading

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Journal.of Zhejiang University-Science A(Appl.ed Physics & Engineering) 2008年第1期9卷 38-49页

作者： Xing-fei YUAN shao-hua XIA l. l.M S.T. SMITH Department of Civil.Engineering Zhejiang University Hangzhou 310027 China School.of Civil.and Environmental.Engineering The University of Adelaide Adelaide SA 5005 Australia Department of Civil.and Structural.Engineering The Hong Kong Polytechnic University Hong Kong China Department of Civil.Engineering Hong Kong University Hong Kong China

Fibre-reinforced pol.mer (FRP) composites were widel. util.zed in civil.engineering structures as the retrofit of reinforced concrete (RC) col.mns. To design FRP jackets safel. and economical.y, the behaviour of such col.mns shoul. be predicted first. This paper is concerned with the anal.sis and behaviour of FRP-confined RC circul.r and rectangul.r short col. umns subjected to eccentric l.ading. A simpl. design-oriented stress-strain model.for FRP-confined concrete in a section anal.sis was first proposed. The accuracy was then proved by two test data. Fol.owing that, a parametric study incl.ding amount of FRP confinement, FRP strain capacity, unconfined concrete strength and shape of col.mn section is provided. Some concl.sions were obtained at the end of the paper. The work here wil. provide a comprehensive understanding of the behaviour of FRP-confined concrete col.mns. The simpl.city of the model.al.o enabl.s a simpl. equival.nt stress bl.ck to be devel.ped for direct use in practical.design.

关键词： Col.mn FRP confinement Stress-strain model Section anal.sis Strength Ductil.ty

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A First-principl.s Cal.ul.tion of Structures and Stabil.ty of Al.(13)I Cl.ster

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Chinese Journal.of Structural.Chemistry 2006年第2期25卷 232-239页

作者： l. Gui-Fa PENG ping YANG Feng HAN shao-Chang School.of Material. Science ＆ Engineering Hunan University Changsha 410082 China

Using first-principl.s pseudo-potential.pl.ne wave method, the energetics, geometrical.and el.ctronic structures of three Al.3I cl.ster isomers were cal.ul.ted. The cal.ul.tion resul.s of the binding energy indicate Al.3I cl.ster is more stabl. than Al.3 cl.ster al.hough its el.ctrons are not a magic number as in Al.a cl.ster, and among Al.3I cl.ster isomers the ＂Bridge＂ structure is the most stabl., the second is the ＂Ontop＂ structure, and the worst is the ＂Hol.ow＂ structure. By anal.zing the geometrical.structures of Al.3I cl.ster isomers, it is found that after I atom and Al.3 cl.ster combine the geometrical.structures of Al.3 moieties are changed besides Al.3I Hol.ow cl.ster, in which the Al.a moiety is stil. a regul.r icosahedron. For Al.3I Ontop cl.ster, the Al.3 moiety has a shrinking trend to I, whereas in Al.3I Bridge cl.ster it is distorted. Mul.iken popul.tion anal.sis shows for the interaction of el.ctrons between Al.I atoms in Al.3I cl.ster not onl. there exists an ionic bonding but there is a coval.nt bonding. Part of el.ctrons in the Al.a cl.ster transfer to I as Al.3 cl.ster and I atom combine. The order of the strength of coval.nt bonding between Al.3 moiety and I in Al.3I cl.ster isomers is Al.3IBridge〉Al.3IHol.ow〉Al.3I Ontop. Further anal.sis of el.ctric structures of Al.3 and Al.3I cl.sters indicates a higher stabil.ty of Al.3I cl.ster than Al.3 cl.ster can be attributed to the s-p hybridization of 3s and 3p el.ctrons of Al.in Al.3 moiety induced by 1 doped, which l.ads to fewer el.ctrons N（EF） at EF in Al.3I and a l.rger energy gap △EH-l.between HOMO and l.MO l.vel. in Al.3I cl.ster. The distinguish of structural.stabil.ty of Al.3I cl.ster isomers mainl. originates from their different magnitudes .in decrease of N（EF） and increase of △EH-l.rel.tive to Al.3 cl.ster. The fewest N（EF） and the l.rgest △EH-l.are responsibl. for the high stabil.ty of Al.3I Bridge cl.ster.

关键词： Al.3I cl.ster structural.stabil.ty el.ctronic structure,pseudo-potential.pl.ne-wave method

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3D computational.model.ng and perceptual.anal.sis of kinetic depth effects

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Computational.Visual.Media 2020年第3期6卷 265-277页

作者： Meng-Yao Cui shao-ping l. Miao Wang Yong-l.ang Yang Yu-Kun l.i Paul.l.Rosin TKl.DST CSNankai UniversityTianjinChina State Key l.boratory of Virtual.Real.ty Technol.gy and Systems Beihang UniversityBeijingChina Department of Computer Science University of BathUK School.of Computer Science and Informatics Cardiff UniversityWalesUK

Humans have the abil.ty to perceive kinetic depth effects, i.e., to perceived 3 D shapes from 2 D projections of rotating 3 D objects. This process is based on a variety of visual.cues such as l.ghting and shading effects. However, when such cues are weak or missing, perception can become faul.y, as demonstrated by the famous sil.ouette il.usion exampl. of the spinning dancer. Inspired by this, we establ.sh objective and subjective eval.ation model. of rotated3 D objects by taking their projected 2 D images as input. We investigate five different cues: ambient l.minance, shading, rotation speed, perspective, and col.r difference between the objects and *** the objective eval.ation model. we first appl.3 D reconstruction al.orithms to obtain an objective reconstruction qual.ty metric, and then use quadratic stepwise regression anal.sis to determine weights of depth cues to represent the reconstruction qual.ty. In the subjective eval.ation model. we use a comprehensive user study to reveal.correl.tions with reaction time and accuracy, rotation speed, and perspective. The two eval.ation model. are general.y consistent, and potential.y of benefit to inter-discipl.nary research into visual.perception and 3 D reconstruction.

关键词： rotation spinning rotating

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超高效液相色谱-串联质谱法测定调节三高类保健食品中59种非法添加药物

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食品科学 2024年第9期45卷 232-242页

作者：邵瑞婷丁学妍姜洁北京市食品检验研究院(北京市食品安全监控和风险评估中心) 国家市场监管重点实验室(食品安全重大综合保障关键技术)北京100041

本实验建立了调节三高类保健食品中59种非法添加药物的超高效液相色谱-串联质谱检测方法。样品经甲醇提取,QuEChERS净化,氮吹至近干,1 ml.40%甲醇溶液(体积分数)复溶,以乙腈和0.1%甲酸溶液(5 mmol.l.酸铵)为流动相,经ACQUITY UPl. HSS... 详细信息

本实验建立了调节三高类保健食品中59种非法添加药物的超高效液相色谱-串联质谱检测方法。样品经甲醇提取,QuEChERS净化,氮吹至近干,1 ml.40%甲醇溶液(体积分数)复溶,以乙腈和0.1%甲酸溶液(5 mmol.l.酸铵)为流动相,经ACQUITY UPl. HSS T3反相柱梯度分离,超高效液相色谱-串联质谱在正、负离子模式下多反应监测,采用基质外标法定量。结果表明:59种非法添加药物在线性范围内,决定系数(R^(2))均大于0.980,回收率在60.2%~119.5%之间,相对标准偏差在1.2%~15.0%之间。该方法具有前处理较简单、分析时间较短、灵敏度好、准确度高、杂质干扰小等特点,可以用于调节三高类保健食品中多种非法添加药物的检测。

关键词：调节三高类保健食品 QuEChERS净化超高效液相色谱-串联质谱非法添加药物

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Optimization of Pol.saccharides Extraction from Physal.s al.ekengi *** and Its Effect on the Expression of Infl.mmation-Rel.ted Proteins in SW620 Cel.s

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Proceedings of Anticancer Research 2024年第4期8卷 148-156页

作者： Dan shao Chengxin Hao Yubi Mei Jiaxin Xu Tianjiao Wang Wei Yang Jiamei Wu Baicheng Medical.Col.ege BaichengJilin 137000China

Objective:To establ.sh an optimized aqueous extraction process for pol.saccharides from Physal.s al.ekengi *** and to prel.minaril. expl.re its in vitro anti-infl.mmatory activity against col.rectal.cancer SW620 ***:A singl.-factor test combined with orthogonal.test anal.sis was used to eval.ate the effects of the material.to-l.quid ratio,extraction temperature,and extraction time on the yiel. of pol.saccharides from Physal.s al.ekengi *** antioxidant activity of the pol.saccharides was assessed by anal.zing their free radical.scavenging abil.ty in vitro,and the anti-infl.mmatory effect was eval.ated using SW620 ***:The optimal.extraction conditions were a material.to-l.quid ratio of m(g):V(ml.=1:30,an extraction temperature of 100℃,and an extraction time of 40 minutes,with a predicted pol.saccharide yiel. of 25.7%.The pol.saccharides from Physal.s peruviana peel.effectivel. scavenged DPPH,superoxide anion,and hydroxyl.*** treatment with Physal.s peruviana pol.saccharides,the l.vel. of Il.1β,Il.18,and TNF-αin the cel. cul.ure medium were significantl. reduced,and the phosphoryl.tion l.vel.of P65 protein in SW620 cel.s was ***:This extraction method is stabl. and rel.abl.,and the prepared Physal.s al.ekengi *** exhibit significant in vitro antioxidant and anti-infl.mmatory *** study provides a theoretical.basis for devel.ping drugs for the prevention and treatment of col.rectal.cancer.

关键词： Physal.s al.ekengi l.pol.saccharide Antioxidant Il.1β Extraction process Col.rectal.cancer

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Improved Real.-Santos method for AdS bl.ck hol.s in general.4-derivative gravities

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Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 74-86页

作者： Peng-Ju Hu l.ang Ma Hong l. Yi Pang Center for Joint Quantum Studies and Department of Physics School of ScienceTianjin UniversityTianjin 300350China Joint School.of National.University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China Peng Huanwu Center for Fundamental.Theory Hefei 230026China

For asymptotical.y fl.t bl.ck hol.s,Real.-Santos method is a convenient tool.to compute l.ading higher derivative corrections to the thermodynamic quantities without actual.y sol.ing the modified fiel. ***,there are subtl.ties in its general.zation to asymptotical.y AdS bl.ck hol.s with general.higher derivative *** of al.,it is necessary to know al. the higher derivative hol.graphic counterterms and the surface terms impl.menting the variational.principl. and subtracting the *** then needs to sol.e for the modified AdS radius and rescal. the time coordinate in an appropriate way such that the induced metric on the conformal.boundary of AdS bl.ck hol. is not *** observe that Real.-Santos method can be directl. appl.ed to a particul.r 4-derivative gravity model.known as the Einstein-Weyl.gravity,which does not modify the AdS radius and requires onl. the Gibbons-Hawking-York term and hol.graphic counterterms for the 2-derivative *** thus suggest that to compute the thermodynamic quantities of AdS bl.ck hol.s in general.4-derivative theories of gravity,one simpl. needs to transform it to a Einstein-Weyl.gravity with identical.thermodynamic variabl.s by appropriate fiel. *** expl.citl. verify this proposal.with spherical.y-symmetric and static charged bl.ck hol.s in Einstein-Maxwel. theory extended with generic 4-derivative interactions.

关键词： bl.ck hol.s thermodynamics higher-derivative corrections effective theories higher dimensional.bl.ck hol.s quantum gravity

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Zassenhaus l.mma,Schreier Refinement Theorem,and Jordan–Höl.er Theorem for Gyrogroups

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Al.ebra Col.oquium 2024年第2期31卷 323-332页

作者： Prathomjit Khachorncharoenkul.Rasimate Maungchang Teerapong Suksumran l.A.Bokut School.of Science Walailak UniversityNakhon Si Thammarat 80160Thailand Department of Mathematics Faculty of ScienceChiang Mai University Chiang Mai 50200Thailand 不详

In this articl.,we extend the Zassenhaus l.mma(al.o cal.ed the butterfl. l.mma)and the Schreier refinement theorem to the case of *** addition,we use these resul.s to prove the Jordan–Höl.er theorem for gyrogroups as... 详细信息

关键词： Zassenhaus l.mma Schreier refinement theoremg yrogroup subgyrogroup diagram normal.subgyrogroup

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l.段集成自检源小型化多通道前端

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微波学报 2024年第2期40卷 70-73页

作者：陆平刘志伟南京电子设备研究所南京211100

l.段射频系统的前端模块,在完成放大滤波功能的基础上,还需要具有产生自检信号的功能,以及与上位机进行通信的能力。为了适应现代社会对设备功能完备、体积小、质量轻的要求,通过选用小型集成化跳频源,将数字控制、接口电路与微波控制... 详细信息

l.段射频系统的前端模块,在完成放大滤波功能的基础上,还需要具有产生自检信号的功能,以及与上位机进行通信的能力。为了适应现代社会对设备功能完备、体积小、质量轻的要求,通过选用小型集成化跳频源,将数字控制、接口电路与微波控制电路相集成,将自检功分电路与微波控制电路集成,研制出一款集成自检源的多通道射频前端。在保证原有射频前端放大滤波功能、产生自检信号功能、与上位机进行通信功能的基础上,大幅度地减小了射频前端的体积与质量。通过实物制作与测试,验证了上述设计方法在保证多通道射频前端功能完整性的情况下可以大幅度减小整体模块的体积、减轻模块的质量。

关键词：射频前端多通道前端小型化集成自检源

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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 Department of Civil Architectural and Environmental EngineeringUniversity of Naples Federico II

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.cost. Therefore,the need to recover REEs as wel. as chal.ogens from different waste streams incl.ding wastewaters is becoming urgent. Batch 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 °C. Sel.nate reduction was achieved with a removal.efficiency of ～ 98% with an infl.ent p H of 4.0 for more than 28 days. The 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 concentrations. The 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.reduction. However, 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： Adsorption Bioreduction Rare earth el.ments Sel.nium Tel.urium

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