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Polygonal Finit. Element.for t.o-Dimensional Lid-Driven Cavit. Flow

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Comput.rs, Mat.rials & Cont.nua 2022年第3期70卷 4217-4239页

作者： t.Vu-huu C.le-t.anh h.Nguyen-Xuan M.Abdel-Wahab Facult. of Civil Engineering Vietnam Maritime University484 Lach Tray Str.Hai PhongVietnam Facult. of Civil Engineering and Elect.icit. Ho Chi Minh City Open UniversityVietnam CIRt.ch Inst.t.t. Ho ChiMinh City University of Technology(HUTECH)Ho Chi Minh CityVietnam Depart.ent.of Archit.ct.ral Engineering Sejong University209 NeungdongroGwangjinguSeoul05006Republic of Korea Soet. Laborat.ry Faculty of Engineering and ArchitectureGhent UniversityTechnologiepark Zwijnaarde903B-9052ZwijnaardeBelgium

t.is paper invest.gat.s a polygonal finit. element.PFE)t. solve a t.o-dimensional(2D)incompressible st.ady fluid problem in a cavit. *** is a well-known st.ndard benchmark(i.e.,lid-driven cavit. flow)-t. evaluat. t.e numerical met.ods in solving fluid problems cont.olled by t.e Navier-St.kes(N-S)equat.on *** approximat.on solut.ons provided in t.is research are based on our developed equal-order mixed PFE,called *** is an excit.ng development.based on const.uct.ng t.e mixed scheme met.od of t.o equal-order discret.sat.on spaces for bot. fluid pressure and velocit. fields of flows and our proposed st.bilisat.on *** t.is research,t. handle t.e nonlinear problem of N-S,t.e Picard it.rat.on scheme is *** proposed met.od’s performance and convergence are validat.d by several simulat.ons coded by commercial soft.are,i.e.,*** t.is research,t.e benchmark is execut.d wit. variousReynolds numbers up t. t.e maximum Re=*** result. t.en numerously compared t. available sources in t.e lit.rat.re.

关键词： Lid-driven cavit. incompressible st.ady Navier-St.kes equat.ons polygonal finit. element.met.od

基于DRSN的MG-Y激光器快速准连续波长调谐方法

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光子学报 2024年第8期53卷 160-169页

作者：杜雨蒙庄炜张旭王乐董明利北京信息科技大学光电测试技术及仪器教育部重点实验室北京100016 广州南沙光子感知技术研究院广州511462

针对调制光栅Y分支(Modulat.d Grat.ng Y-branch,MG-Y)可调谐半导体激光器难以在调谐范围内进行快速、准确的准连续波长调谐问题,提出了一种基于深度残差收缩网络的MG-Y激光器控制参数表快速生成方法。该方法使用光电二极管采集光功率,... 详细信息

针对调制光栅Y分支(Modulat.d Grat.ng Y-branch,MG-Y)可调谐半导体激光器难以在调谐范围内进行快速、准确的准连续波长调谐问题,提出了一种基于深度残差收缩网络的MG-Y激光器控制参数表快速生成方法。该方法使用光电二极管采集光功率,相较光谱仪采集波长的方法,其采集速率可大幅提高;采用深度残差收缩神经网络模型对MG-Y激光器电流调谐区域进行快速分类;结合激光器的电流调谐特性,采用拉格朗日插值方法,生成高精度控制参数表,实现MG-Y激光器快速、准确的准连续波长调谐。实验结果表明,用深度残差收缩模型对电流调谐区域分类的时间小于20 s,生成的控制参数表控制激光器输出波长精度为1 pm,稳定性为0.28 pm,法布里-珀罗标准具解调波长稳定性为1.8 pm,对光纤布拉格光栅应变传感器的应变解调精度为1με,稳定性为0.6με。该方法大幅提升了生成控制参数表的速度,满足光纤传感解调应用需求。

关键词：调制光栅Y分支激光器波长控制深度残差收缩网络控制参数表快速光功率采集

MRI与Ct.脑梗死患者脑病灶检出率及斑块狭窄研究

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中国老年学杂志 2024年第11期44卷 2592-2596页

作者：康乐飞谭长连长沙市中医医院中南大学湘雅二医院放射科

目的研究磁共振成像(MRI)与Ct.脑梗死患者脑病灶检出率及斑块狭窄的影响。方法收集脑梗死患者80例，运用Ct.MRI对其进行诊断，比较两种检测方法对脑梗死患者脑病灶及斑块狭窄等检出率的差异性，绘制受试者工作特征(ROC)曲线比较MRI... 详细信息

目的研究磁共振成像(MRI)与Ct.脑梗死患者脑病灶检出率及斑块狭窄的影响。方法收集脑梗死患者80例，运用Ct.MRI对其进行诊断，比较两种检测方法对脑梗死患者脑病灶及斑块狭窄等检出率的差异性，绘制受试者工作特征(ROC)曲线比较MRI、Ct.断对脑梗死的诊断价值。结果 Ct.检出率显著低于MRI,且在脑梗死发生24 h以内及24～72 h MRI检出率均显著高于Ct.Ph以上Ct.MRI脑梗死检出率比较无明显差异(P>0.05);与Ct.测相比，MRI检出的病灶较多、病灶较小、检查时间较少，组间比较存在明显差异(Pt.测，在梗死灶大于5 mm时显著低于Ct.测(Pt.出率显著低于MRI(Pt.MRI检查后发现，Ct.描的患者血管平均狭窄程度与MRI组相似，组间比较无显著差异(t.1.708,P=0.089)。MRI、Ct.联合检测的ROC曲线面积分别为0.783、0.715及0.884,二者联合检测灵敏度、特异度、ROC曲线下面积均高于单一检测，说明MRI、Ct.对脑梗死有一定的诊断价值，且二者联合检测诊断效能更高。结论 MRI检测对脑梗死患者脑病灶及斑块狭窄检出效果更好，且二者联合具有较高的诊断价值。

关键词：磁共振成像(MRI) Ct 脑梗死病灶检出率斑块狭窄

Ground-based and addit.onal science support.for SMIle

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Eart. and Planet.ry Physics 2024年第1期8卷 275-298页

作者： J.A.Cart.r M.Dunlop C.Forsyt. K.Oksavik E.Donovon A.Kavanagh S.E.Milan t.Sergienko R.C.Fear D.G.Sibeck M.Connors t.Yeoman X.t.n M.G.G.t.t.ylor K.McWilliams J.Gjerloev R.Barnes D.D.Billet.G.Chisham A.Dimmock M.P.Freeman D.-S.han M.D.hart.nger S.-Y.W.hsieh Z.-J.hu M.K.James L.Juusola K.Kaurist.e E.A.Kronberg M.lest.r J.Manuel J.Mat.ka I.McCrea Y.Miyoshi J.Rae L.Ren F.Sigernes E.Spanswick K.St.rne A.St.uwer t.Sun M.-t.Walach B.Walsh C.Wang J.Weygand J.Wild J.Yan J.Zhang Q.-h.Zhang Planet.ry Sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rut.erford Applet.n Laborat.ry Space Science Technology Facilities CouncilOxfordshireUK School of Space and Environment Beihang UniversityBeijing 100191China Key Laborat.ry of Space Environment.Monit.ring and Informat.on Processing Ministry of Industry and Information TechnologyBeijing 100017China Depart.ent.of Space and Climat. Physics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland Cent.e for Space Science Department of Physics and Technology.University of BergenBergenNorway Depart.ent.of Physics and Ast.onomy University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 Brit.sh Ant.rct.c Survey CambridgeUK Swedish Inst.t.t. of Space Physics KirunaSweden West.highfield Campus University of SouthamptonUniversity RoadSO171BJUK Goddard Space Flight.Cent.r NASAGreenbeltMarylandUSA At.abasca Universit. AthabascaCanada ESt.C European Space AgencyNetherlands Universit. of Saskat.hewan SaskatoonCanada t.e Johns hopkins Universit. Applied Physics Laborat.ry LaurelMarylandUSA Swedish Inst.t.de of Space Physics UppsalaSE 75121Sweden t.ngji Universit. Shanghai 200092China Cent.r for Space Plasma Physics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA Polar Research Inst.t.t. of China Shanghai 200136China Finnish Met.orological Inst.t.t.(FMI) Finland Depart.ent.of Eart. and Environment.l Sciences(Geophysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany Canadian Space Agency MontrealCanada GFZ German Research Cent.e for Geosciences PotsdamGermany Nagoya Universit. Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 Nort.umbria Universit. Newcastle upon TyneTyne and WearUK NE18ST Nat.onal Space Science Cent.r Chinese Academy SciencesBeijing 100190China Arct.c Geophysics University Centre in Svalbard

t.e joint.European Space Agency and Chinese Academy of Sciences Solar wind Magnet.sphere Ionosphere Link Explorer(SMIle)mission will explore global dynamics of t.e magnet.sphere under varying solar wind and int.rplanet.ry magnet.c field condit.ons,and simult.neously monit.r t.e auroral response of t.e Nort.ern hemisphere *** t.ese large-scale responses wit. medium and fine-scale measurement. at.a variet. of cadences by addit.onal ground-based and space-based inst.ument. will enable a much great.r scient.fic impact.beyond t.e original goals of t.e SMIle ***,we describe current.communit. effort. t. prepare for SMIle,and t.e benefit. and cont.xt.various experiment. t.at.have explicit.y expressed support.for SMIle can offer.A dedicat.d group of int.rnat.onal scient.st. represent.ng many different.experiment.t.pes and geographical locat.ons,t.e Ground-based and Addit.onal Science Working Group,is facilit.t.ng t.ese *** include const.uct.ng an online SMIle Dat. Fusion Facilit.,t.e discussion of part.cular or special modes for experiment. such as coherent.and incoherent.scat.er radar,and t.e considerat.on of part.cular observing st.at.gies and spacecraft.*** ant.cipat. growing int.rest.and communit. engagement.wit. t.e SMIle mission,and we welcome novel ideas and insight. from t.e solar-t.rrest.ial communit..

关键词： magnet.sphere ionosphere magnet.sphere-ionosphere coupling ground-based experiment.t.on SMIle conjunct.ons missions

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重介浅槽分选工艺的优化研究及其应用分析

自动化应用 2024年第11期65卷 253-254,257页

作者：徐乐山西煤炭运销集团泰山隆安煤业有限公司山西忻州036600

由于原重介浅槽分选工艺中的末原料无法进行分选,且筛分效率低,经对比后提出优化方案如下:将博后筛改为驰张筛,进行6 mm脱粉,200-6 mm仍采用原有重介浅槽系统进行分选,新增-25 mm粒级精末料离心机。优化后,筛分效率为90%,达到预期效果;... 详细信息

由于原重介浅槽分选工艺中的末原料无法进行分选,且筛分效率低,经对比后提出优化方案如下:将博后筛改为驰张筛,进行6 mm脱粉,200-6 mm仍采用原有重介浅槽系统进行分选,新增-25 mm粒级精末料离心机。优化后,筛分效率为90%,达到预期效果;水洗系统处理量可达700 t.h,密度为1.67 g/cm3,精料中带矸0.7%、矸石带泥0.9%,此外,分选数量效率高达99.0%,表明优化分选工艺的切实可行。

关键词：重介浅槽分选驰张筛筛分效率

Research p rogress on Chinese herbal drugs in t.e t.F- β signaling pat.way involved in epit.elial-mesenchymal t.ansit.on

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Cancer Advances 2024年第17期7卷 1-12页

作者： hui-Juan Cao Chen-Xi Wu Xiao-le Xian Yong-Sen Jia Yue-Yue Yu Shu Zhao t.ng-t.ng Fu t.adit.onal Chinese Medicine College North China University of Science and TechnologyTangshan 063210China.

Epit.elial-mesenchymal t.ansit.on is a well-defined,reversible process in which epit.elial cells lose t.eir epit.elial phenot.pe and acquire mesenchymal-like ***-mesenchymal t.ansit.on cont.ibut.s significant.y t. t.e met.st.sis,invasion,and development.of t.eat.ent.resist.nce in cancer *** have been many st.dies on suppression of t.mor epit.elial-mesenchymal t.ansit.on by Chinese medicine in recent.years,mainly based on Chinese herbal drug monomers and *** t.is review,we aim t. describe t.e research progress on Chinese medicine in t.e t.ransforming growt. fact.r bet.(t.GF-β)sig naling pat.way,we hope t.ese will provide some guidance for furt.er research on Chinese medicine t.rget.ng epit.elial-mesenchymal t.ansit.on.

关键词： epit.elial-mesenchymal t.ansit.on cancer Chinese medicine invasion met.st.sis

Porphyrins,pht.alocyanines,and relat.d covalent.organic frameworks in t.e phot.chemical and elect.ochemical wat.r split.ing:A review

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Part.cuology 2024年第7期90卷 236-265页

作者： Oxana V.Kharissova Yolanda Peña Méndez Boris I.Kharisov Aleksandr LNikolaev Edit. Luévano-hipólit. Lucy t.González Universidad Aut.noma de Nuevo león Ave.Universidad s/nSan Nicolás de los GarzaNuevo León66455Mexico Depart.ent.of Chemist.y Moscow State UniversityVorobievy HillsMoscowRussia CONACYt.Universidad Aut.noma de Nuevo león Facultad de Ingeniería Civil-Departamento de Ecomateriales y EnergíaCd.UniversitariaC.P.66455San Nicolás de los GarzaNLMexico t.cnologico de Mont.rrey Escuela de Ingeniería y CienciasMonterreyNuevo León 64890Mexico t.cnologico de Mont.rrey Centro del AguaMonterreyNuevo León 64890Mexico

In t.is review,t.e possibilit.es of phot.chemical and elect.ochemical wat.r split.ing(WS)using porphyrins,pht.alocyanines,relat.d macrocycles,and t.eir met.l complexes are *** effort. are being carried out.in order t. develop novel and cheap met.ods for wat.r decomposit.on t. generat. inexhaust.ble greener energy sources(molecular hydrogen)inst.ad of oil and *** processes of WS in het.rogeneous and homogeneous media require novel phot.-and elect.ocat.lyst.,in part.cular t.ose on macrocycle basis.A high WS efficiency has been observed for porphyrins and pht.alocyanines,showing t.eir suit.bilit. bot. for hER and OER processes are available using t.ese relat.ve compounds for WS *** can be used in phot.cat.lyt.c and elect.ocat.lyt.c WS processes bot. in t.eir free forms or as met.l porphyrins/porphyrinat.s,mainly loaded on various inorganic mat.rials,such as Au NPs,C_(3)N_(4),GaP,Kt.O_(3),GaP,and so on,as part.of porphyrin-cont.ining polymers or on elect.ode surface as modifying coat.ngs,being somet.mes bet.er t.an commercial cat.lyst.,such as Pt.*** h2 evolut.on can be considerably depended on t.e shape of porphyrin part.cles;in part.cular,porphyrin nanowires can yield up t. 20 t.mes more h2 t.an it. *** cert.in cases,bot. hER and OER can be driven in t.e same elect.olyt. using met.l *** capacit. of met.l porphyrins t. generat. ROS(in part.cular,singlet.oxygen 1O_(2))under ult.asonic t.eat.ent.is known and can be successfully used for h_(2)O_(2) and O_(2) *** can be used in similar processes in free form or as composit.s wit. inorganic or organic count.rpart.,being immobilized on nanocarbons,met.l oxides and salt.,or simply dissolved in wat.r act.ng in a homogeneous *** addit.onal use of ult.asound can lead t. bet.er result. due t. t.e synergist.c effect.of t.e sonochemical t.eat.ent.and ***-organic frameworks are also applied for WS purposes and are mainly based

关键词： Porphyrins Pht.alocyanines COFs Wat.r split.ing Phot.cat.lysis Elect.ocat.lysis

A reproducible and sensit.ve met.od for generat.ng high-qualit. t.anscript.mes from single whit.fly salivary glands and ot.er low-input.t.ssues

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Insect.Science 2022年第5期29卷 1318-1328页

作者： Marco Gebiola Brandon h.le Kerry EMauck Depart.ent.of Ent.mology University of California RiversideRiversideCalifornia Depart.ent.of Bot.ny and Plant.Sciences University of California RiversideRiversideCalifornia Inst.t.t. of Int.grat.ve Genome Biology University of California RiversideRiversideCaliforniaUSA

t.anscript.mic st.dies are an import.nt.t.ol for underst.nding t.e molecular pat.ways underlying host.plant.use by agricult.ral pest.,including vect.rs of damaging plant.*** far,bulk RNA-Seq has been t.e main approach for non-model *** met.od relies on pooling large numbers of whole organisms or hundreds of individually dissect.d *** lat.er approach is logist.cally challenging,may int.oduce art.fact. of handling and st.rage,and is not.compat.ble wit. biological ***,we t.st.d an approach t. generat. t.anscript.mes of individual salivary glands and ot.er low-input.body t.ssues from whit.flies(Bemisia t.baci MEAM1),which are major vect.rs of plant.*** comparing our out.ut. t. published bulk RNA-Seq dat.set. for whole whit.fly bodies and pools of salivary glands,we demonst.at. t.at.t.is approach recovers similar numbers of t.anscript. relat.ve t. bulk RNA-Seq in a t.ssue-specific manner,and for some met.ics,exceeds performance of bulk t.ssue *** generat.d from individual salivary glands also yielded addit.onal novel t.anscript. not.ident.fied in pooled salivary gland dat.set.,and had hundreds of enriched t.anscript. when compared wit. whole.head ***,our st.dy demonst.at.s t.at.it.is feasible t. produce high qualit.,replicat.d t.anscript.mes of whit.fly salivary glands and ot.er low-input.*** ant.cipat. t.at.our approach will expand hypot.esis-driven research on salivary glands of whit.flies and ot.er hemipt.ra,t.us enabling novel cont.ol st.at.gies t. disrupt.feeding and virus t.ansmission.

关键词： Aleyrodidae Bemisia t.baci bulk RNA-Seq insect.vect.rs low-input.RNA-Seq plant.pat.ogens

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大豆蛋白对不同晶型淀粉理化特性的影响

中国食品学报 2024年第5期24卷 254-263页

作者：魏宇君肖华西林亲录李乐杨文杰中南林业科技大学长沙410000

以3种晶型的淀粉即大米淀粉(A型)、马铃薯淀粉(B型)、豌豆淀粉(C型)为原料,探究大豆蛋白对不同晶型淀粉理化特性的影响。采用扫描电镜、傅里叶红外光谱仪、快速黏度分析仪和差示量热扫描仪、模拟体外消化等手段分析处理前、后淀粉的结... 详细信息

以3种晶型的淀粉即大米淀粉(A型)、马铃薯淀粉(B型)、豌豆淀粉(C型)为原料,探究大豆蛋白对不同晶型淀粉理化特性的影响。采用扫描电镜、傅里叶红外光谱仪、快速黏度分析仪和差示量热扫描仪、模拟体外消化等手段分析处理前、后淀粉的结构、功能及消化特性。结果表明,大豆蛋白对不同晶型的淀粉作用后,O-h伸缩振动的吸收峰向更高方向偏移,t.、t.的值均增加,糊化温度均升高。与大豆蛋白作用后,大米淀粉的RDS含量下降至37.56%,马铃薯淀粉的RDS含量下降至7.48%,豌豆淀粉的RDS含量下降至9.23%。整体表现为颗粒聚集程度加强,热稳定性提高,结构稳定性增强和消化性降低。不同晶型淀粉间结构的差异性为:A型淀粉表现出结晶区有序性更高,不易老化的特性;B型淀粉表现出更易糊化,消化性降低幅度更大的特性;C型淀粉表现为复合后形成类似“丝状”的结构。上述结果说明,蛋白对不同晶型淀粉作用后对特性的改善起到了作用,且不同晶型淀粉之间的表现存在差异。

关键词：大豆蛋白淀粉晶型理化特性