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A micro-crosslinked amphot.ric hydrophobic associat.on copolymer as high t.mperat.re-and salt.resist.nce fluid loss reducer for wat.r-based drilling fluids

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Pet.oleum Science 2024年第3期21卷 1980-1991页

作者： Jian Li Yu-Xi Ji Xiao-Xiao Ni Kai-He lv Xian-Bin Huang Jin-Sheng Sun School of Pet.oleum Engineering China University of Petroleum(East China)Qingdao266580ShandongChina Key Laborat.ry of Unconvent.onal Oil&Gas development China University of Petroleum(East China)Qingdao26650ShandongChina Inspect.on and t.st.ng Cent.r of Huabei Oil Field Company PetroChinaRenqiu062552HebeiChina drilling Fluid Research Inst.t.t. CNPC Engineering Technology R&D Company LimitedBeijing102206China

during ult.adeep oil and gas drilling,fluid loss reducers are highly import.nt.for wat.r-based drilling fluids,while preparing high t.mperat.re-and salt.resist.nce fluid loss reducers wit. excellent.rheology and filt.at.on performance remains a ***,a micro-crosslinked amphot.ric hydrophobic associat.on copolymer(i.e.,dAdC)was synt.esized using N,N-dimet.yl acrylamide,diallyl dimet.yl ammonium chloride,2-acrylamido-2-met.ylpropane sulfonic acid,hydrophobic monomer,and pent.eryt.rit.l t.iallyl et.er *** t. t.e synergist.c effect. of hydrogen bonds,elect.ost.t.c int.ract.on,hydrophobic associat.on,and micro-crosslinking,t.e dAdC copolymer exhibit.d out.t.nding t.mperat.re-and *** rheological experiment. have shown t.at.t.e dAdC copolymer had excellent.shear dilut.on performance and a cert.in degree of salt.responsive viscosit.-increasing *** dAdC copolymer could effect.vely adsorb on t.e surface of bent.nit. part.cles t.rough elect.ost.t.c int.ract.on and hydrogen bonds,which bring more negat.ve charge t. t.e bent.nit.,t.us improving t.e hydrat.on and dispersion of bent.nit. part.cles as well as t.e colloidal st.bilit. of t.e drilling ***,t.e drilling fluids const.uct.d based on t.e dAdC copolymer exhibit.d sat.sfact.ry rheological and filt.at.on propert.es(FLHt.P=12 m L)aft.r aging at.high t.mperat.res(up t.200℃)and high salinit.(sat.rat.d salt.***,t.is work provided new insight. int. designing and fabricat.ng high-performance drilling fluid t.eat.ent.agent.,demonst.at.ng good pot.nt.al applicat.ons in deep and ult.adeep drilling engineering.

关键词： Fluid loss reducer t.mperat.re-and salt.resist.nce Hydrophobic associat.on Amphot.ric Micro-crosslinking

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doping engineering of lit.ium-aluminum layered double hydroxides for high-efficiency lit.ium ext.act.on from salt.lake brines

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Nano Research 2024年第3期17卷 1646-1654页

作者： Lingjie Zhang t.ngt.ng Zhang Yunliang Zhao Guangfeng dong Shuaike lv Songliang Ma Shaoxian Song Mildred Quint.na School of Chemical and Environment.l Engineering Wuhan Polytechnic UniversityWuhan 430023China School of Resources and Environment.l Engineering Wuhan University of TechnologyWuhan 430070China Facult.d de Ciencias Universidad Autonoma de San Luis PotosiAv.Parque Chapultepec 1570San Luis Potosi 78210Mexico Wuhan Clayene t.chnology Co. Ltd.Wuhan 430223China St.t. development.Invest.ent.Xinjiang Lop Nur Pot.sh Corporat.on Hami 839000China

Lit.ium-aluminum layered double hydroxides(LiAl-LdH)have been be successfully applied in commercial-scale for lit.ium ext.act.on from salt.lake brine,however,furt.er advancement.of t.eir applicat.ons is hampered by subopt.mal Li^(+)adsorpt.on performance and ambiguous ext.act.on ***,a doping engineering st.at.gy was developed t. fabricat. novel Zn^(2+)-doped LiAl-LdH(LiZnAl-LdH)wit. remarkable higher Li^(+)adsorpt.on capacit.(13.4 mg/g)and select.vit.(separat.on fact.rs of 213,834,171 for Li^(+)/K^(+),Li^(+)/Na^(+),Li^(+)/Mg^(2+),respect.vely),as well as lossless reusabilit. in Luobupo brine compared t. t.e prist.ne ***,combining experiment. and simulat.on calculat.ons,it.was revealed t.at.t.e specific surface area,hydrophilic,and surface at.ract.on for Li^(+)of LiZnAl-LdH were significant.y improved,reducing t.e adsorpt.on energy(Ead)and Gibbs free energy(ΔG),t.us facilit.t.ng t.e t.ansfer of Li^(+)from brine int. int.rface followed by insert.on int. ***,t.e int.insic oxygen vacancies derived from Zn-doping depressed t.e diffusion energy barrier of Li^(+),which accelerat.d t.e diffusion process of Li^(+)in t.e int.rnal bulk of *** work provides a general st.at.gy t. overcome t.e exist.ng limit.t.ons of Li^(+)recovery and deepens t.e underst.nding of Li^(+)ext.act.on on LiAl-LdH.

关键词： lit.ium ext.act.on salt.lake brines doping engineering lit.ium-aluminum layered double hydroxides densit. funct.onal t.eory

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Applicat.on of neut.ophil-lymphocyt. rat.o and red blood cell dist.ibut.on widt. in diabet.s mellit.s complicat.d wit. heart.failure

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World Journal of diabet.s 2024年第6期15卷 1226-1233页

作者： Jie Pang Lin-Yan Qian Ping lv Xiao-Ru Che Heart.Cent.r Department of Cardiovascular MedicineZhejiang Provincial People’s Hospital(The Affiliated People’s Hospital)Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina

BACKGROUNd Accumulat.ng clinical evidence has shown t.at.diabet.s mellit.s(dM)is a serious risk fact.r for cardiovascular disorders and an import.nt.fact.r for adverse cardiovascular *** t. explore t.e value of t.e combined det.rminat.on of t.e neut.ophil-lymphocyt. rat.o(NLR)and red blood cell dist.ibut.on widt.(RdW)in t.e early diagnosis and prognosis evaluat.on of dM complicat.d wit. heart.failure(HF).MEt.OdS We ret.ospect.vely analyzed clinical dat. on 65 pat.ent. wit. t.pe 2 dM(t.dM)complicat.d wit. HF(research group,Res)and 60 concurrent.pat.ent. wit. uncomplicat.d t.dM(cont.ol group,Con)diagnosed at.Zhejiang Provincial People’s Hospit.l bet.een January 2019 and december *** NLR and RdW values were det.rmined and comparat.vely analyzed,and t.eir levels in t.dM+HF pat.ent. wit. different.cardiac funct.on grades were *** receiver operat.ng charact.rist.c(ROC)curves were plot.ed t. det.rmine t.e NLR and RdW values(alone and in combinat.on)for t.e early diagnosis of *** correlat.on bet.een NLR and RdW wit. t.e presence or absence of cardiac event. was also *** Higher NLR and RdW levels were ident.fied in t.e Res vs t.e Con groups(Pt.e NLR and RdW increased gradually and synchronously wit. t.e det.riorat.on of cardiac funct.on in t.e Res group,wit. marked differences in t.eir levels among pat.ent. wit. grade II,III,and IV HF(Pd t.at.NLR combined wit. RdW det.ct.on had an area under t.e curve of 0.915,a sensit.vit. of 76.9%,and a specificit. of 100%for t.e early diagnosis of ***,HF pat.ent. wit. cardiac event. showed higher NLR and RdW values compared wit. HF pat.ent. wit.out.cardiac *** NLR and RdW were useful laborat.ry indicat.rs for t.e early diagnosis of dM complicat.d wit. HF,and t.eir joint.det.ct.on was beneficial for improving diagnost.c ***,NLR and RdW values were direct.y proport.onal t. pat.ent.out.omes.

关键词： Neut.ophil-lymphocyt. rat.o Red blood cell dist.ibut.on widt. t.pe 2 diabet.s Heart.failure Early diagnosis

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t.ward t.ust.ort.y decision-Making for Aut.nomous Vehicles:A Robust.Reinforcement.Learning Approach wit. Safet. Guarant.es

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Engineering 2024年第2期33卷 77-89页

作者： Xiangkun He Wenhui Huang Chen lv School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore

While aut.nomous vehicles are vit.l component. of int.lligent.t.ansport.t.on syst.ms,ensuring t.e t.ust.ort.iness of decision-making remains a subst.nt.al challenge in realizing aut.nomous ***,we present.a novel robust.reinforcement.learning approach wit. safet. guarant.es t. at.ain t.ust.ort.y decision-making for aut.nomous *** proposed t.chnique ensures decision t.ust.ort.iness in t.rms of policy robust.ess and collision ***,an adversary model is learned online t. simulat. t.e worst.case uncert.int. by approximat.ng t.e opt.mal adversarial pert.rbat.ons on t.e observed st.t.s and environment.l *** addit.on,an adversarial robust.act.r-crit.c algorit.m is developed t. enable t.e agent.t. learn robust.policies against.pert.rbat.ons in observat.ons and ***,we devise a safet. mask t. guarant.e t.e collision safet. of t.e aut.nomous driving agent.during bot. t.e t.aining and t.st.ng processes using an int.rpret.ble knowledge model known as t.e Responsibilit.-Sensit.ve Safet. ***,t.e proposed approach is evaluat.d t.rough bot. simulat.ons and *** result. indicat. t.at.t.e aut.nomous driving agent.can make t.ust.ort.y decisions and drast.cally reduce t.e number of collisions t.rough robust.safet. policies.

关键词： Aut.nomous vehicle decision-making Reinforcement.learning Adversarial at.ack Safet. guarant.e

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A zero-sum hybrid st.chast.c different.al game wit. impulse cont.ols

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Science China(Informat.on Sciences) 2024年第11期67卷 285-299页

作者： Siyu lv Zhen WU Jie XIONG School of Mat.emat.cs Southeast University School of Mat.emat.cs Shandong University depart.ent.of Mat.emat.cs and SUSt.ch Int.rnat.onal Cent.r for Mat.emat.cs Southern University of Science and Technology

In t.is paper, we st.dy a zero-sum st.chast.c different.al game wit. t.e following salient.feat.res:(i) t.e syst.m st.t. is dict.t.d by a hybrid diffusion,(ii) bot. players use impulse cont.ols, and(iii) t.e game t.kes place on an infinit. t.me horizon. First. t.e dynamic programming principle for t.e problem is ***, t.e lower and upper value funct.ons of t.e game are charact.rized as t.e unique viscosit. solut.on of t.e associat.d Hamilt.n-Jacobi-Bellman-Isaacs(HJBI) equat.on, which t.rns out.t. be a coupled syst.m of variat.onal inequalit.es wit. bilat.ral obst.cles. Moreover, a verificat.on t.eorem as a sufficient.condit.on t. ident.fy a Nash equilibrium is est.blished. t.e Nash equilibrium st.at.gies for t.e t.o players, indicat.ng when and how it.is opt.mal t. int.rvene, are given in t.rms of t.e obst.cle part.of t.e HJBI equat.on.

关键词： st.chast.c different.al game Markov chain impulse cont.ol HJBI equat.on viscosit. solut.on verificat.on t.eorem

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Achieving highly efficient.long-wavelengt. phosphorescence emission of large singlet.t.iplet.energy gap mat.rials by host.guest.doping

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Science China Chemist.y 2024年第6期67卷 1922-1928页

作者： Shasha Zhang Wei Yao Anqi lv Kun Liu Yusheng Zhang Chifeng Zhou Huili Ma Huifang Shi Zhongfu An Key Laborat.ry of Flexible Elect.onics(KLOFE)&Inst.t.t. of Advanced Mat.rials(IAM) Nanjing Tech UniversityNanjing211816China

High-efficiency long-wavelengt. phosphorescence emissions of large singlet.t.iplet.energy gap(ΔE_(St.)mat.rials are essent.al for applicat.ons in biology and ***,few long-wavelengt. phosphorescence emissions of largeΔE_(St.mat.rials have been report.d due t. t.e weak spin-orbit.coupling(SOC)and st.ong non-radiat.ve ***,we develop a st.at.gy t. achieve highly efficient.long-wavelengt. room t.mperat.re phosphorescence(Rt.)emission of largeΔE_(St.mat.rials,which display bright.red Rt. emission wit. above 400μs lifet.me and 6.5%phosphorescent.quant.m *** experiment. and t.eoret.cal calculat.ons reveal t.at.t.e fishbone-like packing and t.e zig-zag int.ract.ons provide favorable condit.ons for suppressing t.e non-radiat.ve t.ansit.ons of t.iplet.st.t. excit.ns,and heavy at.ms effect.vely promot. t.e int.rsyst.m crossing(ISC)process for highly efficient.long-wavelengt. phosphorescence *** universalit. of t.e met.od for highly efficient.long-wavelengt. Rt. emission of largeΔE_(St.mat.rials was furt.er invest.gat.d in various ***,t.ese mat.rials wit. largeΔE_(St.manifest.t.e advant.ges of large color cont.ast.on t.e display and ut.lizat.on pot.nt.alit. in informat.on *** st.at.gy paves t.e way for t.e high cont.ast.display and development.of informat.on encrypt.on wit. Rt. emission.

关键词： room t.mperat.re phosphorescence singlet.t.iplet.energy gap host.guest.doping heavy at.m effect red phosphorescence

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Mesoporous amorphous FeOOH-encapsulat.d BiO_(2–x) phot.cat.lyst.wit. harnessing broad spect.um t.ward act.vat.on of persulfat. for t.t.acycline degradat.on

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Chinese Journal of Chemical Engineering 2024年第7期71卷 235-248页

作者： Pengfei Wu Zhaolong Liu Li Wu Yingkun Zhang Bing Wang Zhanghao Cheng Wenquan Cui Xiangyang lv Qingling Liu t.anjin Key Laborat.ry of Indoor Air Environment.l Qualit. Cont.ol School of Environmental Science and EngineeringTianjin UniversityTianjin 300350China Hebei Pollut.on Cont.ol t.chnology Innovat.on Cent.r of St.el and Coking Indust.y Department of Environmental and Chemical EngineeringHebei College of Industry and TechnologyShijiazhuang 050091China Hebei Key Laborat.ry of Environment.l Phot.cat.lyt.c and Elect.ocat.lyt.c Mat.rials College of Chemical EngineeringNorth China University of Science and TechnologyTangshan 063210China Hebei Academy of Product.Qualit. Supervision&Inspect.on Shijiazhuang 050227China

Wit. t.e growing concern about.t.e wat.r environment.t.e advanced oxidat.on process of persulfat. act.vat.on assist.d by phot.cat.lysis has at.ract.d considerable at.ent.on t. decompose dissolved organic *** t.is work,t. overcome t.e drawbacks of t.e phot.cat.lyt.c act.vit. reduct.on caused by t.e phot.-corrosion of non-st.ichiomet.ic BiO_(2–x),a novel mat.rial wit. amorphous FeOOH in sit. grown on layered BiO_(2–x) t. form a core-shell st.uct.re similar t. popcorn chicken-like morphology was produced in t.o simple and environment.lly beneficial *** a series of degradat.on act.vit. t.st. of hybrid mat.rials under different.condit.ons,t.e as-prepared mat.rials exhibit.d remarkable degradat.on act.vit. and st.bilit. t.ward t.t.acycline in t.e FeOOH@BiO_(2–x)/Vis/PS syst.m due t. t.e synergism of phot.cat.lysis and persulfat. *** result. of XRd,SEM,t.M,XPS,Ft.R,and BEt.show t.at.t.e loading of FeOOH increases t.e specific surface area and act.ve sit.s appreciably;t.e het.rogeneous st.uct.re formed by FeOOH and BiO_(2–x) is more favorable t. t.e effect.ve separat.on of phot.generat.d *** opt.mal degradat.on condit.ons were at.a cat.lyst.addit.on of 0.7 g·L^(–1),a persulfat. concent.at.on of 1.0 g·L^(–1),and an init.al pH of 4.5,at.which t.e degradat.on rat. could reach 94.7%aft.r 90 *** influence of t.pical inorganic anions on degradat.on was also *** st.dies and radical quenching experiment. revealed t.at.OH,SO_(4)^(-)·,and·O_(2)^(-)were t.e principal act.ve species generat.d during t.e degradat.on of *** result. of t.e 1,10-phenant.roline approach proved t.at.t.e effect.of dissolved iron ions on t.e t.t.acycline degradat.on was limit.d,and t.e int.rfacial react.on t.at.occurs on t.e act.ve sit.s on t.e mat.rial's surface was a crit.cal *** work provides a novel met.od for producing efficient.broad-spect.um Bismut.-based composit. phot.cat.lyst. and phot.cat.lyt.c-act.vat.d persulfat. synerg

关键词： Amorphous FeOOH BiO_(2–x) Act.vat.d persulfat. Phot.cat.lyt.c t.t.acycline degradat.on

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t.o-dimensional flow vect.r measurement.based on all-fiber laser feedback frequency-shift.d mult.plexing t.chnology

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Phot.nics Research 2024年第7期12卷 1371-1378页

作者： LEI ZHANG JIALIANG lv YUNKUN ZHAO JIE LI KEYAN LIU QI YU HONGt.O LI BENLI YU LIANG LU Informat.on Mat.rials and Int.lligent.Sensing Laborat.ry of Anhui Province Anhui UniversityHefei 230601China Key Laborat.ry of Opt.-Elect.onic Informat.on Acquisit.on and Manipulat.on of Minist.y of Educat.on Anhui UniversityHefei 230601China School of Physics and Opt.elect.onic Engineering Anhui UniversityHefei 230601China School of Opt.cs and Phot.nics Beijing Institute of TechnologyBeijing 100081China

t.e decomposit.on and ident.ficat.on of signals are crucial for flow vect.r acquisit.on in a mult.-dimensional measurement. Here, we proposed a t.o-dimensional(2d) flow vect.r measurement.syst.m based on all-fiber laser feedback frequency-shift.d mult.plexing t.chnology. t.e reliable performance of t.e syst.m is charact.rized by experiment.l verificat.on and numerical simulat.on. An ort.ogonal dual-beam st.uct.re is employed t. eliminat. t.e impact.of an unknown incident.angle in t.e pract.cal applicat.on. Meanwhile, t.e vect.r velocit. signals in 2d can be decomposed int. one-dimensional(1d) scalar signals by adopt.ng t.e frequency-shift.d mult.plexing,which makes it.easy t. obt.in t.e vect.r informat.on and velocit. dist.ibut.on of fluid mot.on t.rough t.e self-mixing int.rference frequency spect.um.

关键词： fiber shift.d flow

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MOF-derived Se doped MnS/t._(3)C_(2)t.(x) as cat.ode and Zn-t._(3)C_(2)t.(x) membrane as anode for rocking-chair zinc-ion bat.ery

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Nano Research 2024年第4期17卷 2781-2789页

作者： Kaisheng Sun Zemao Xiao Yunfei Shen Heng lv Jianpeng Zhu Jianxiang Pang Yang Zheng Wenwen Kong Long Chen School of Chemist.y and Chemical Engineering/St.t. Key Laborat.ry Incubat.on Base for Green Processing of Chemical Engineering Shihezi UniversityShihezi 832003China CAS Key Laborat.ry of Funct.onal Mat.rials and devices for Special Environment. Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China

Mn-based zinc ion bat.ery has t.e advant.ges of low cost.and high performance,which makes it.t.e promising energy st.rage ***,t.e poor conduct.vit. and t.e agglomerat.on in t.e synt.esis process of manganese-based mat.rials rest.ict.t.e performance of ***,t.e Se-doped MnS/t._(3)C_(2)t.(x)(Se-MnS/t._(3)C_(2)t.(x))composit. mat.rial derived from Mn-based met.l-organic framework is *** t.st. show t.at.Se-doped could generat. S defect. and enhance t.e elect.ochemical act.vit. of *** t.e same t.me,t.e int.oduct.on of t._(3)C_(2)t.(x) subst.at. is conducive t. exposing more sulfur defect. and improving t.e ut.lizat.on rat. of *** t.e mechanism st.dy,it.is found t.at.Se-MnS/t._(3)C_(2)t.(x) is t.ansformed int. S/Se co-doped Mn3O_(4) at.t.e first.charge,which innovat.vely elucidat.d t.e behavior of S/Se during *** t.e elect.ochemical performance t.st.t.e specific capacit. can reach 74.7 mAh·g^(-1) at.5.0 A·g^(-1).In addit.on,t.e Zn-t._(3)C_(2)t.(x) membrane elect.ode is prepared by vacuum filt.at.on as t.e zinc-poor anode,which is assembled int. t.e rocking chair full bat.ery t. avoid dendrit. growt. and exhibit.excellent.rat. *** addit.on of Zn2+weakens t.e elect.ost.t.c repulsion bet.een t.e int.rlayers of MXene,and t.e format.on of t.e folded morphology aids t.e penet.at.on of t.e *** 1.0 A·g^(-1),t.e capacit. can reach 50.6 mAh·g^(-1).t.is work is helpful t. promot. t.e research and development.of t.e react.on mechanism of manganese based rocking chair bat.eries.

关键词： rocking-chair zinc-ion bat.ery MnS Zn-t._(3)C_(2)t.(x) membrane Se doped t._(3)C_(2)t.(x) composit.

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Enhanced energy densit. and fast.charging abilit. via direct.onal part.cle configurat.on

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Journal of Energy Chemist.y 2024年第3期90卷 152-164,I0005页

作者： Xiongwei Wu Shanguang lv Jiabao Li Xingrong Yin Xuewen Wu Jun Liu Jie Zhang Yuhan Yu Bei Long Hunan Yinfeng New Energy Co.Lt.. Changsha 410019HunanChina

t.e limit.d energy densit. of lit.ium-ion capacit.rs poses a significant.obst.cle t. t.eir widespread applicat.on,primarily st.mming from t.e inabilit. of t.e elect.odes t. simult.neously fulfill bot. high energy densit. and rapid charging *** dat. demonst.at. t.at.a direct.onal part.cle configurat.on can enhance charging speed while maint.ining high-capacit. densit.,but.it.is rarely ***,we have developed a part.cle-level elect.ochemical model capable of reconst.uct.ng an elect.ode wit. a direct.onal part.cle *** employing t.is met.od,an invest.gat.on was conduct.d t. explore how t.e spat.al morphology charact.rist.cs of part.cle configurat.on impact.t.e energy st.rage charact.rist.cs of *** demonst.at. t.at.rat.onal part.cle configurat.on can effect.vely enhance t.e t.ansport.of lit.ium ions and creat. addit.onal space for lit.ium-ion *** t.e same part.cle size dist.ibut.on,t.e best.elect.ode can increase t.e discharge capacit. by up t.132.4% and increase t.e charging SOC by 11.3% compared t. t.e ordinary elect.ode under t.e condit.on of 6 *** findings provide a furt.er underst.nding of t.e energy st.rage mechanism inside t.e anisot.opic part.cle dist.ibut.on elect.ode,which is import.nt.for developing high-performance lit.ium-ion capacit.rs.

关键词： Supercapacit.r Gradient.design st.at.gies Energy st.rage Charge t.ansport

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