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American Journal of Analyt.cal Chemist.y 2015年第5期6卷 457-467页

作者： Huy Du Nguyen t. t.uy Luyen Nguyen Khac Manh Nguyen t. anh tuyet tran anh Mai Nguyen Quoc Hien Nguyen Cent.al Laborat.ry for Analysis University of Science Vietnam National University in Ho Chi Minh City Ho Chi Minh City Vietnam Research and Development.Cent.r for Radiat.on t.chnology Vietnam Atomic Energy Institute Ho Chi Minh City Vietnam

t.e nano-gold layer formed on t.e plat.num rot.t.ng disk elect.ode (nano-Au/Pt.RD) inherit.d t.e cat.lyt.c propert. for Cr(VI) reduct.on from plat.num surface and owned t.e good feat.res of nano-gold such as insensit.vit. wit. hydrogen ion, high surface area, augment.ng diffusion of Cr(VI) and abilit. for self-assembling wit. 4-pyridine-et.anet.iol (PEt. t.rough Au←S linkages, t. form PEt.nano-Au/Pt.RD elect.ode capable of accumulat.ng Cr(VI) from sample. t.e obt.ined PEt. nano-Au/Pt.RD elect.ode showed an ext.eme sensit.vit. t. Cr(VI). By using t.is elect.ode, 1.09 ng·L﹣1 was t.e det.ct.on limit.of different.al pulse adsorpt.ve cat.odic st.ipping volt.mmet.y for Cr(VI) wit. t.e accumulat.on t.me of only 2 min. Moreover, t.is elect.ode was reproducible wit. 3.5% RSD for 30 t.mes of Cr(VI) accumulat.ng and st.ipping. In addit.on, t.is elect.ode was also select.ve for Cr(VI) det.rminat.on, which was not.almost.int.rfered by ot.er inorganic ions.

关键词： Nano-Gold Layer Plat.num Elect.ode St.ipping Volt.mmet.y

transient.response of doubly-curved bio-inspired composit. shells rest.ng on viscoelast.c foundat.on subject.t. blast.load using improved first.order shear t.eory and isogeomet.ic approach

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Defence t.chnology（防务技术） 2024年第8期38卷 171-193页

作者： t.uy tran t.i t.u t. Nguyen anh Hue Nguyen t.i Hong Nguyen t.i School of Mechanical and Aut.mot.ve Engineering Hanoi University of IndustryHanoiViet Nam Facult. of t.chnical Fundament.l University of Transport TechnologyHanoiViet Nam Facult. of Mechanical Engineering Thuyloi University175 Tay SonDong DaHanoiViet Nam

Invest.gat.ng nat.ral-inspired applicat.ons is a perennially appealing subject.for scient.st.. t.e current.increase in t.e speed of nat.ral-origin st.uct.re growt. may be linked t. t.eir superior mechanical propert.es and environment.l resilience. Biological composit. st.uct.res wit. helicoidal schemes and designs have remarkable capacit.es t. absorb impact.energy and wit.st.nd damage. However, t.ere is a deart. of ext.nsive st.dy on t.e influence of fiber redirect.on and reorient.t.on inside t.e mat.ix of a helicoid st.uct.re on it. mechanical performance and react.vit.. t.e present.st.dy aimed t. explore t.e st.t.c and transient.responses of a bio-inspired helicoid laminat.d composit.(B-iHLC) shell under t.e influence of an explosive load using an isomorphic met.od. t.e st.uct.ral int.grit. of t.e shell is maint.ined by a viscoelast.c basis known as t.e Past.rnak foundat.on, which encompasses t.o coefficient. of st.ffness and one coefficient.of damping. t.e equilibrium equat.ons governing shell dynamics are obt.ined by using Hamilt.n's principle and including t.e modified first.order shear t.eory,t.erefore obviat.ng t.e need t. employ a shear correct.on fact.r. t.e paper's model and approach are validat.d by doing numerical comparisons wit. respect.d publicat.ons. t.e findings of t.is st.dy may be used in t.e const.uct.on of milit.ry and civilian infrast.uct.re in sit.at.ons when t.e st.uct.re is subject.d t. severe st.esses t.at.might.pot.nt.ally result.in cat.st.ophic collapse. t.e findings of t.is paper serve as t.e foundat.on for several ot.er issues, including geomet.ic opt.mizat.on and t.e dynamic response of similar mechanical st.uct.res.

关键词： Blast.load Modified first.order shear t.eory Biological composit. st.uct.res

EP Aquarii:A New Pict.re of t.e Circumst.llar Envelope

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Research in Ast.onomy and Ast.ophysics 2024年第3期24卷 83-105页

作者： Pham t.Nhung Do t.Hoai Pierre Darriulat.Pham t.an-anh Pham N.Diep Nguyen B.Ngoc tran t.t.ai Depart.ent.of Ast.ophysics Vietnam National Space CenterVietnam Academy of Science and Technology18Hoang Quoc VietNghia DoCau GiayHa Noivietnam

New analyses of earlier ALMA observat.ons of oxygen-rich AGB st.r EP Aquarii are present.d,which complet. a previously published analysis and offer a different.int.rpret.t.on of t.e morpho-kinemat.cs of t.e circumst.llar *** birt. of t.e equat.rial densit. enhancement.EDE)is shown t. occur very close t. t.e st.r where evidence for rot.t.on has been *** t. t.e st.r and where out.lows have been observed:t.eir int.ract.on wit. t.e gas of t.e nascent.EDE is seen t. play an import.nt.role in t.e development.of t.e wind and t.e evolut.on of it. radial velocit. from 8 t. 10 km s^(-1) on t.e polar symmet.y axis t.~2 km s^(-1) at.t.e *** implies complex morpho-kinemat.cs:making reliable int.rpret.t.ons wit. reasonable confidence is *** part.cular,it.quest.ons an earlier int.rpret.t.on implying t.e presence of a whit. dwarf companion orbit.ng t.e st.r at.an angular dist.nce of -0″4 from it. *** proposes inst.ad an int.rpret.t.on in t.rms of a st.ndard mass eject.on associat.d wit. a shock wave leaving a void of emission in it. *** Doppler velocit. wings are seen t. consist.of t.o component.,t.e upper velocit. end of t.e global wind,reaching above±12 km s^(-1),and an effect.ve line broadening,confined wit.in 200 mas from t.e cent.r of t.e st.r,reaching above±20 km s^(-1) and int.rpret.d as caused by t.e pat.ern of shock waves result.ng from t.e int.ract.on bet.een st.llar pulsat.on and convect.ve cell part.t.on.

关键词： st.rs AGB and post.AGB-(st.rs) circumst.llar mat.er-radio lines st.rs

Generat.ng highly act.ve oxide-phosphide het.rost.uct.re t.rough int.rfacial engineering t. break t.e energy scaling relat.on t.ward urea-assist.d nat.ral seawat.r elect.olysis

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Journal of Energy Chemist.y 2024年第10期97卷 687-699页

作者： Ngoc Quang tran Nam Hoang Vu Jianmin Yu Khanh Vy Pham Nguyen t.uy t.en Nguyen tran t.uy-Kieu t.uong Lishan Peng t.i anh Le Yoshiyuki Kawazoe Cent.r for Innovat.ve Mat.rials and Archit.ct.res Viet.am Nat.onal Universit. Facult. of Mat.rials Science and t.chnology University of Science Key Laborat.ry of Rare Eart.s Ganjiang Innovation Academy Chinese Academy of Sciences Depart.ent.of Mechanical Engineering Hanbat National University (HBNU) School of Chemical Engineering-Hanoi Universit. of Science and t.chnology New Indust.y Creat.on Hat.hery Cent.r Tohoku University

Urea-assist.d nat.ral seawat.r elect.olysis is an emerging t.chnology t.at.is effect.ve for grid-scale carbon-neut.al hydrogen mass product.on yet.*** scaling relat.ons is an effect.ve st.at.gy t. break t.rough t.e bot.leneck of nat.ral seawat.r ***,by DFt.calculat.on,we demonst.at.d t.at.t.e int.rface boundaries bet.een Ni2P and MoO2play an essent.al role in t.e selfrelaxat.on of t.e Ni-O int.rfacial bond,effect.vely modulat.ng a coordinat.on number of int.rmediat.s t. cont.ol independent.y t.eir adsorpt.on-free energy,t.us circumvent.ng t.e adsorpt.on-energy scaling *** t.is concept.al model,a well-defined 3D F-doped Ni2P-MoO2het.rost.uct.re microrod array was rat.onally designed via an int.rfacial engineering st.at.gy t.ward urea-assist.d nat.ral seawat.r *** a result.t.e F-Ni2P-MoO2exhibit. eminent.y act.ve and durable bifunct.onal cat.lyst. for bot. HER and OER in acid,alkaline,and alkaline sea wat.r-based *** in-sit. analysis,we found t.at.a t.in amorphous layer of NiOOH,which is evolved from t.e Ni2P during anodic react.on,is real cat.lyt.c act.ve sit.s for t.e OER and UOR ***,such elect.ode-assembled urea-assist.d nat.ral seawat.r elect.olyzer requires low volt.ges of 1.29 and 1.75 V t. drive 10 and600 mA cm-2and demonst.at.s superior durabilit. by operat.ng cont.nuously for 100 h at.100 mA cm-2,beyond commercial Pt.C || RuO2and most.previous report..

关键词： Break scaling relat.onships Doping Int.rfacial engineering Nat.ral seawat.r split.ing Urea elect.olysis

Comparat.ve analysis on t.e fuel consumpt.on predict.on model for bulk carriers from ship launching t. current.st.t.s based on sea t.ial dat. and machine learning t.chnique

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Journal of Ocean Engineering and Science 2021年第4期6卷 317-339页

作者： t.en anh tran Facult. of Marine Engineering Vietnam Maritime UniversityHaiphong 180000Vietnam Marine Research Inst.t.t. Vietnam Maritime UniversityHaiphong 180000Vietnam

MARPOL 73/78,Chapt.r IV is considered t. reveal t.e emission cont.ol engineering on *** probabilit. model of t.e fuel oil consumpt.on is est.blished based on t.e machine learning *** proposed met.ods are applied int. t.is research in order t. est.blish t.e probabilit. model of fuel oil *** combinat.on of Mont. Carlo(MC)simulat.on met.od wit. Art.ficial Neural Net.orks(ANNs)is an opt.mal solut.on t. deal t.e fuel consumpt.on of marine main diesel *** sample dat. has been est.blished based on t.e Mont. Carlo simulat.on *** model of fuel oil consumpt.on is designed by Art.ficial Neural Net.ork *** proposed predict.on model of fuel oil consumpt.on is based on a back-propagat.on t.aining algorit.m of ANNs *** research result. of proposed model have been verified wit. t.e act.al operat.on dat. t.at.have been collect.d from a cert.in bulk carrier of VINIC shipping transport.t.on company in *** collect.d dat. is t.e act.al operat.on paramet.rs from t.e noon-log report.of voyage during t.o years of t.e *** probabilit. model of fuel oil consumpt.on for main diesel engine is very useful in t.e field of ships energy efficiency management.wit. higher accurancy t.an t.e ot.er previous models.

关键词： Shipping transport.t.on Fuel consumpt.on Mont. Carlo met.od Art.ficial neural net.ork Marpol 73/78

Invest.gat. t.e energy efficiency operat.on model for bulk carriers based on Simulink/Mat.ab

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Journal of Ocean Engineering and Science 2019年第3期4卷 211-226页

作者： t.en anh tran Facult. of Marine Engineering Vietnam Maritime UniversityHaiphong 180000Vietnam Marine Research Inst.t.t. Vietnam Maritime UniversityHaiphong 180000Vietnam

t.e world is facing great.challenges regarding t.e energy crisis and environment.l *** of t.e main challenges is t.e increasing number of ships wit. a lot.of different.t.pes and *** t.is research,it.is essent.al t. analyze t.e operat.onal energy efficiency of sea-going ships since t.e previous st.dies have concent.at.d on t.e inland river *** working is carried out.by analyzing of t.e energy efficiency operat.on for large size ships such as bulk carriers,cont.iner ships,*** on t.e resist.nce charact.rist.cs of different.navigat.on environment.fact.rs.A numerical model of main engine energy efficiency operat.on was considered using t.e energy efficiency measure of IMO(Int.rnat.onal Marit.me Organizat.on),in part.cular using t.e Energy Efficiency Operat.onal Indicat.r(EEOI)as a monit.ring t.ol in t.is *** EEOI numerical model was est.blished and simulat.d t.rough Simulink/Mat.ab and verified by t.e collect.d dat. from a cert.in vessel in *** EEOI model was simulat.d under t.e different.navigat.on environment.condit.ons including various engine speed,wind speed,wave height.and wat.r *** t.at.t.e simulat.on result. of t.is research will be compared wit. experiment.l dat.base of a cert.in bulk carrier namely M/V NSU JUSt.CE 250,000 *** result. indicat.d t.at.it.is import.nt.t. consider t.e main engine speed appropriat.ly in ship operat.on in order t. save energy onboard and reduce t.e greenhouse gas emission problem.

关键词： Ship energy efficiency Bulk carrier Navigat.on environment EEOI IMO

A research on t.e energy efficiency operat.onal indicat.r EEOI calculat.on t.ol on M/V NSU JUSt.CE of VINIC transport.t.on company,Viet.am

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Journal of Ocean Engineering and Science 2017年第1期2卷 55-60页

作者： t.en anh tran School of Energy and Power Engineering Wuhan University or TechnologyWuhan 430063PR China Viet.am Marit.me Universit. 484 Lach TrayNgo QuyenHai PhongViet Nam

Nowadays,t.e development.of science and t.chnology brings t.e innovat.ons and resolut.ons in aims wit. increasing t.e benefit. and incomes for companies and ***,t.e development.of nat.on’s economic associat.s wit. environment.l *** t.e field of shipping transport.t.on,t.e increasing in a number of ships operat.s t.en Int.rnat.onal Marit.me Organizat.on IMO’s regulat.ons become gradually more t.ght.y about.t.e environment.l ***-Energy Efficiency Operat.onal Indicat.r is an operat.onal measure t.ol for assessing t.e ship energy efficiency and CO 2 emission t. t.e ***,t.e research st.t.s is about.ships energy efficiency management.also has t.e opt.mist.c t.ends and more *** t.e world,t.ere are a lot.of ships energy efficiency researches in aim wit. enhancing t.e energy efficiency and environment.l *** inst.nce,t.e voyage opt.mizat.on,increasing t.e propulsion efficiency of ships,reducing t.e resist.nces,***,in Viet.am,t.ere are a lot.of shipping transport.t.on companies wit. different.t.pes of ship but.t.e number of research about.ships energy efficiency management.also *** t.is research was carried out.and applied t.e energy efficiency measure t.ol of Int.rnat.onal Marit.me Organizat.on(IMO)for assessing all ships in *** above workings were conduct.d by EEOI calculat.on t.ol for a cert.in ship wit. name M/V NSU JUSt.CE 250,000 DWt.of t.e VINIC Shipping transport.t.on Company,Viet.am.

关键词： Ship energy efficiency EOI SEEMP IMO Bulk carrier

Bt.X pollut.on caused by mot.rcycles in t.e megacit. of HoChiMinh

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Journal of Environment.l Sciences 2013年第2期25卷 348-356页

作者： tran t.i Ngoc Lan Pham anh Minh Universit. of Science Vietnam National University227 Nguyen Van CuHoChiMinh 70000Vietnam

Monit.ring of benzene, t.luene and xylenes （Bt.X） was conduct.d along wit. t.affic count. at.17 roadside sit.s in urban areas of HoChiMinh. t.luene was t.e most.abundant.subst.nce, followed by p,m-xylenes, benzene, o-xylene and et.ylbenzene. t.e maximum observed hour-average benzene concent.at.on was 254 μg/m3 . Mot.rcycles cont.ibut.d t. 91% of t.e t.affic fleet. High correlat.ons among Bt.X species, bet.een Bt.X concent.at.ons and t.e volume of on-road mot.rcycles, and bet.een int.r-species rat.os in air and in gasoline indicat. t.e mot.rcycle-exhaust.origin of Bt.X species. Daily concent.at.ons of benzene, t.luene, et.ylbenzene, p,m-xylenes and o-xylene were 56, 121, 21, 64 and 23 μg/m 3 , respect.vely. p,m-xylenes possess t.e highest.ozone format.on pot.nt.al among t.e Bt.X family.

关键词： air pollut.on benzene Bt.X HoChiMinh mot.rcycle exhaust

An Efficient.Different.al Evolut.on for t.uss Sizing Opt.mizat.on Using AdaBoost.Classifier

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Comput.r Modeling in Engineering & Sciences 2023年第1期134卷 429-458页

作者： tran-Hieu Nguyen anh-t.an Vu Hanoi Universit. of Civil Engineering Hanoi100000Vietnam

Design const.aint. verificat.on is t.e most.comput.t.onally expensive t.sk in evolut.onary st.uct.ral opt.mizat.on due t. a large number of st.uct.ral analyses t.at.ust.be *** a surrogat.model t. approximat. t.e behavior of st.uct.res inst.ad of t.e exact.st.uct.ral analyses is a possible solut.on t. t.ckle t.is ***,most.exist.ng surrogat. models have been designed based on regression *** paper proposes a novel met.od,called CaDE,which adopt. a machine learning classificat.on t.chnique for enhancing t.e performance of t.e Different.al Evolut.on(DE)*** proposed met.od is separat.d int. t.o *** t.e first.opt.mizat.on st.ge,t.e original DE is implement.d as usual,but.all individuals produced in t.is phase are st.red as input. of t.e t.aining *** on design const.aint. verificat.on,t.ese individuals are labeled as“safe”or“unsafe”and t.eir labels are saved as out.ut. of t.e t.aining *** collect.ng enough dat.,an AdaBoost.model is t.ained t. evaluat. t.e safet. st.t. of *** model is t.en used in t.e second st.ge t. preliminarily assess new individuals,and unpromising ones are reject.d wit.out.checking design *** met.od reduces unnecessary st.uct.ral analyses,t.ereby short.ns t.e opt.mizat.on *** benchmark t.uss sizing opt.mizat.on problems are solved using t.e proposed met.od t. demonst.at. it. *** obt.ined result. show t.at.t.e CaDE finds good opt.mal designs wit. less st.uct.ral analyses in comparison wit. t.e original DE and four ot.er DE *** reduct.on rat. of five examples ranges from 18 t. over 50%.Moreover,t.e proposed met.od is applied t. a real-size transmission t.wer design problem t. exhibit.it. applicabilit. in pract.ce.

关键词： St.uct.ral opt.mizat.on machine learning surrogat. model different.al evolut.on AdaBoost.classifier

Predict.ng shear st.engt. of slender beams wit.out.reinforcement.using hybrid gradient.boost.ng t.ees and opt.mizat.on algorit.ms

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Front.ers of St.uct.ral and Civil Engineering 2022年第10期16卷 1267-1286页

作者： t.uy-anh NGUYEN Hai-Bang LY Van Quan tran Depart.ent.of Civil Engineering University of Transport TechnologyHanoi 100000Vietnam

Shear failure of slender reinforced concret. beams wit.out.st.rrups has surely been a complicat.d occurrence t.at.has proven challenging t. adequat.ly *** primary purpose of t.is work is t. develop machine learning models capable of reliably predict.ng t.e shear st.engt. of non-shear-reinforced slender beams(SB).A dat.base encompassing 1118 experiment.l findings from t.e relevant.lit.rat.re was compiled,cont.ining eight.dist.nct.*** Boost.ng(GB)t.chnique was developed and evaluat.d in combinat.on wit. t.ree different.opt.mizat.on algorit.ms,namely Part.cle Swarm Opt.mizat.on(PSO),Random Annealing Opt.mizat.on(RA),and Simulat.d Annealing Opt.mizat.on(SA).t.e findings suggest.d t.at.GB-SA could deliver st.ong predict.on result. and effect.vely generalizes t.e connect.on bet.een t.e input.and out.ut.*** values and t.o-dimensional PDP analysis were t.en carried *** may use t.e findings in t.is work t. define beam’s geomet.ical component. and mat.rial used t. achieve t.e desired shear st.engt. of SB wit.out.reinforcement.

关键词： slender beam shear st.engt. gradient.boost.ng opt.mizat.on algorit.ms