检索结果-南通市图书馆

Evaluation of periglacial landforms and formation of soil properties on th. Mount h.naz,SW Türkiye

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2024年第9期21卷 3047-3067页

作者： serİN Soner UNCU Levent DEDE Volkan TÜRKEŞMurat Institute of Social Sciences İstanbul Universityİstanbul 34119Türkiye Department of Geograph. BilecikŞeyh Edebali UniversityBilecik 11234Türkiye Department of Geograph. Ardahan UniversityArdahan 75002Türkiye Center for Climate Ch.nge and Policy Studies Boğaziçi Universityİstanbul 34342Türkiye

Th. main aim of th.s study is to explain periglacial processes on th. summits of Mount h.naz(2571 m a.s.l.),define periglacial landforms,and determine th. relationsh.ps between morph.metric features and topograph.c *** circles,stony earth.circles,non sorted steps,and non sorted stripes were identified on th. summits of Mount ***'s correlation coefficient(r)and linear regression analyses were performed by taking metric measurements from 125 periglacial landforms to describe th.ir morph.metric features(length.width.h.igh.)of periglacial landforms and explain th. relationsh.ps between th.m and topograph.c factors(elevation,slope).To explain th. relationsh.ps between periglacial landforms and soil properties,soil samples from 11 periglacial landforms were taken and *** landforms,wh.ch.continue to develop on th. summits of Mount h.naz today,h.ve been evaluated with.present climate *** of soil samples indicates a notable impact of parent material on th. genesis of periglacial *** h.gh.ratio of organic matter in mud circle and non sorted step landforms and th. h.gh.lime ratio in stony earth.circle landforms prove a strong relationsh.p between th. formation mech.nisms of landforms and th. soil ***,it is consistent with.th. findings obtained from th. analysis th.t severe periglacial processes and wash.ng and scavenging events are experienced more on th. north.rn slopes.

关键词： Periglacial processes and geomorph.logy Soil analysis Morph.metric analysis Mount h.naz Türkiye

Public transport inclusion and active aging: A systematic review on elderly mobility

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traffic and Transportation Engineering(English.Edition) 2024年第2期11卷 312-347页

作者： na Zh.ng Qi Yang Sch.ol of h.manities Chang'an UniversityXi'an 710064China Sch.ol of Transportation Engineering Chang'an UniversityXi'an 710064China Sch.ol of Economics and Management Chang'an UniversityXi'an 710064China

Global aging h.s brough. attention to addressing th. elderly mobility dilemma,and a commitment to address inclusive transport in *** inclusion for older adults aims at establish.ng an age-friendly transport *** a direct policy goal and promoting active aging as an indirect social goal,to h.lp older populations gain access to transport and social *** on th. analysis of scientific knowledge mapping over th. past 30 years,th.s study visualizes th. h.tspots and trends in elderly mobility *** a qualitative analysis of 138 papers,th.s paper reviews th. th.oretical foundations for transport inclusion and th.ee th.mes of elderly mobility research.proposes a framework for public transport(PT)inclusion research.as well as future research.*** study suggests th.t transport inclusion can h.lp enh.nce elderly h.alth.social participation,and subjective *** can improve th.ir travel opportunities for active aging in four ways:opportunity accessibility,ph.sical accessibility,age-friendly informationalization,and cost *** research.sh.uld pay attention to examining th. mech.nism of perceived transport inclusion on active aging,expanding th. multilevel research.space of th. capability approach.CA),and exploring th. subjectiveobjective integrated research.model for PT *** research.contributes to th. overall knowledge of th. th.oretical and empirical research.s on PT inclusion for th. elderly and promotes th. integrated application of interdisciplinary knowledge in th. field.

关键词： Transportation engineering Elderly mobility Transport-related social exclusion Transport inclusion Active aging

Asynch.onous gain-sch.duled control of deepwater drilling riser system with.h.brid event-triggered sampling and unreliable communication

在线全文

学校读者我要写书评

暂无评论

Frontiers of Information Tech.ology & Electronic Engineering 2024年第2期25卷 272-285页

作者： na PANG Dawei Zh.NG Sh.qian Zh. Sch.ol of Math.matics Shandong UniversityJinan250100China

Th.s paper investigates th. recoil control of th. deepwater drilling riser system with.nonlinear tension force and energy-bounded friction force under th. circumstances of limited network resources and unreliable *** from th. existing linearization modeling meth.d,a triangle-based polytope modeling meth.d is applied to th. nonlinear riser *** on th. polytope model,to improve resource utilization and accommodate random data loss and communication delay,an asynch.onous gain-sch.duled control strategy under a h.brid event-triggered sch.me is *** asynch.onous linear parameter-varying system th.t blends input delay and impulsive update equation is presented to model th. nonlinear networked recoil control system,wh.re th. asynch.onous deviation bounds of sch.duling parameters are *** to th. Lyapunov-Krasovskii functional meth.d,some solvable conditions of disturbance attenuation analysis and recoil control design are derived such.th.t th. resulting networked system is exponentially mean-square stable with.prescribed h.*** obtained numerical results verified th.t th. proposed nonlinear networked control meth.d can ach.eve a better recoil response of th. riser system with.less transmission data compared with.th. linear control meth.d.

关键词： Riser system Recoil control Asynch.onous gain-sch.duled control Data loss Event-triggered sch.me

Properties of collective flow and pion production in intermediate-energy h.avy-ion collisions with.a relativistic quantum molecular dynamics model

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Tech.iques 2024年第1期35卷 155-169页

作者： Si-na Wei Zh.o-Qing Feng Sch.ol of Ph.sics and Optoelectronics South China University of TechnologyGuangzhou 510640China

Th. relativistic mean-field approach.was implemented in th. Lanzh.u quantum molecular dynamics transport model(***). Using th. ***, th. properties of collective flow and pion production were investigated systematically for nuclear reactions with.various isospin asymmetries. Th. directed and elliptic flows of th. *** are able to describe th. experimental data of STAR Collaboration. Th. directed flow difference between free neutrons and protons was associated with.th. stiffness of th. symmetry energy, th.t is, a softer symmetry energy led to a larger flow difference. For various collision energies, th. ratio between th. π^(-) and π^(+) yields increased with.a decrease in th. slope parameter of th. symmetry energy. Wh.n th. collision energy was 270 MeV/nucleon, th. single ratio of th. pion transverse momentum spectra also increased with.decreasing slope parameter of th. symmetry energy in both.nearly symmetric and neutron-rich.***, it is difficult to constrain th. stiffness of th. symmetry energy with.th. double ratio because of th. lack of th.esh.ld energy correction on th. pion production.

关键词： h.avy-ion collision Collective flow Pion production Symmetry energy Relativistic mean field

Partial Linear Model Averaging Prediction for Longitudinal Data

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2024年第2期37卷 863-885页

作者： LI na FEI Yu Zh.NG Xinyu Faculty of Science Kunming University of Science and TechnologyKunming 650500China Sch.ol of Statistics and Math.matics Yunnan University of Finance and EconomicsKunming 650221China Academy of Math.matics and Systems Science Chinese Academy of SciencesBeijing 100190China

Prediction plays an important role in data *** averaging meth.d generally provides better prediction th.n using any of its *** th.ugh.model averaging h.s been extensively investigated under independent errors,few auth.rs h.ve considered model averaging for semiparametric models with.correlated *** th.s paper,th. auth.rs offer an optimal model averaging meth.d to improve th. prediction in partially linear model for longitudinal *** model averaging weigh.s are obtained by minimizing criterion,wh.ch.is an unbiased estimator of th. expected in-sample squared error loss plus a *** properties,including asymptotic optimality and consistency of averaging weigh.s,are establish.d under two scenarios:(i)All candidate models are misspecified;(ii)Correct models are available in th. candidate *** studies and an empirical example sh.w th.t th. promise of th. proposed procedure over oth.r competitive meth.ds.

关键词： Asymptotic optimality longitudinal data model averaging estimator partially linear model prediction

A Review on nanomaterial-based Strategies for Manipulating Tumor Microenvironment to Enh.nce Ch.modynamic Th.rapy

在线全文

学校读者我要写书评

暂无评论

Ch.mical Research.in Ch.nese Universities 2024年第2期40卷 202-212页

作者： CAO Mengyu XING Xiner Sh.N Xiaotong OUYANG Jin na na Key Laboratory of Radioph.rmaceuticals Ministry of EducationCollege of ChemistryBeijing Normal UniversityBeijing100875P.R.China Department of Ch.mistry College of Arts and SciencesBeijing Normal University at ZhuhaiZhuhai519087P.R.China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesWuhan430074P.R.China

Cancer is a leading cause of death.worldwide,and a series of strategies h.s been reported for tumor-specific ***,ch.modynamic th.rapy(CDT)h.s become a research.h.tspot for antitumor treatment due to its advantages of h.gh.specificity,endogenous stimulation,and h.gh.***,th. th.rapeutic effects of CDT are normally limited in th. complex tumor microenvironment(TME),such.as insufficient acidity,tumor h.poxia,low h.drogen peroxide(h.O2),and h.gh.glutath.one(GSh..Consequently,different kinds of multifunctional nanomaterials h.ve been designed to manipulate TME conditions,wh.ch.provided more opportunities to improve th. efficiency of *** review focuses on nanomaterial-based strategies for enh.ncing CDT th.ough.manipulating *** CDT enh.ncements,th.s review would provide a reference for th. future development of efficient CDT nanomaterials.

关键词： Ch.modynamic th.rapy Tumor microenvironment nanomaterial Manipulating strategy Fenton/Fenton-like reaction

A h.ad-mounted ph.toacoustic fiberscope for h.modynamic imaging in mobile mice

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ligh.(Science & Applications) 2024年第6期13卷 1012-1014页

作者： Xiaoyan Zh.ng Sh.ai na national Biomedical Imaging Center College of Future TechnologyPeking UniversityBeijing100871China Academy for Advanced Interdisciplinary Studies Peking UniversityBeijing100871China

A miniaturized ph.toacoustic fiberscope h.s been developed, featuring a lateral resolution of 9 microns and a ligh.weigh. design at 4.5 grams. Engineered to capture h.modynamic processes at single-blood-vessel resolution at a rate of 0.2 h., th.s device represents an advancement in h.ad-mounted tools for exploring intricate brain activities in mobile animals.

关键词： fiber mobile Engine

Microstructure and room temperature fracture tough.ess of Nb-Si-based alloys with.Sr addition

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第8期43卷 3904-3912页

作者： Yong-Lin h.ang Li-na Jia Bin Kong Yue-Ling Guo na Wang Sch.ol of Materials Science and Engineering Beihang UniversityBeijing 100191China

Nb-Si-based alloys sh.w great potential to surpass th. widely used Ni-based *** element Sr is widely applied in aluminum and magnesium alloys,but reports about th. effects of Sr on Nb-Si-based alloys are quite ***,Nb-Si-based alloys with.nominal compositions of Nb-15Si-24Ti-4Cr-2Al-2h.-0/0.05/0.15Sr(at%)were prepared by directional solidification and h.at *** microstructural ch.racterization and room temperature fracture tough.ess of Nb-Si-based alloy were systematically *** sh.w th.t all th.se alloys consist of Nb_5Si_3 ph.se embedded with.n Nb solid solution(Nb_(ss)) *** Nb_(5)Si_(3) ph.se becomes refined and more discontinuous after adding minor *** for th. fracture tough.ess,0.05 at% and 0.15 at% Sr additions do not cause significant *** discontinuous and refining mech.nism of Sr element was studied,and th. analysis of tough.ess decreasing with.Sr addition reveals th.t th. size of Nb_(ss) ph.se plays a crucial role in determining th. fracture tough.ess.

关键词： Nb-Si alloy Refinement Discontinuous Fracture tough.ess Nb_(ss)

Anomalies of Precipitation over Ch.na on Days with.Tropical Cyclone Activity over th. Bay of Bengal: Role of Moisture Transport

在线全文

学校读者我要写书评

暂无评论

Journal of Meteorological Research 2024年第2期38卷 368-382页

作者： na WEI Ying LI Xiaoting FAN nanjing Joint Institute for Atmosph.ric Sciences Nanjing 210041 State Key Laboratory of Severe Weath.r Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 Department of Atmosph.ric and Oceanic Sciences and Institute of Atmosph.ric Sciences Fudan UniversityShanghai 200433

Tropical cyclones over th. Bay of Bengal(BoBTC)affect th. precipitation over Ch.na,with.distinct seasonal and daily *** study quantitatively examines th. daily standardized precipitation anomalies(SPAs)over Ch.na on th. days with.BoBTC activities(storm-days)and related circulations,based on rainfall measurements at surface meteorological stations and ECMWF reanalysis data on a 0.25°×0.25°resolution during *** positive SPA is found over th. stations in th. two adjacent regions around BoB(South.est Ch.na in May/November and south.rn Tibetan Plateau in October)and th.ee distant regions(South.ast Ch.na and th. north.astern boundary of th. Qingh.i-Tibet Plateau in May,and central North.Ch.na in October).Th. SPA distributions are remarkably consistent with.th. integrated water vapor transport(IVT)*** IVT is found associated with.th. interaction between south.esterly(south.rly)of th. BoBTC circulation and low-level monsoonal flow in May(midlevel westerly in winter month.).Th. probabilities of extreme precipitation(EP)occurrences over th. above regions all increase on *** adjacent regions,EP is significantly correlated with.th. north.ard IVT anomalies to th. east of BoBTC circulation,wh.ch.strength.n th. water vapor input th.ough.th. south.rn *** IVT anomalies are stronger in May,benefited by th. deep monsoonal south.esterlies th.n th.se in *** distant regions,EP is more closely related to th. IVT anomaly extending back from *** moisture from BoB concentrates along a local low-level convergence line over South.ast Ch.na,being furth.r facilitated by coexistence of th. BoBTC depression and midlevel westerly trough.in *** results h.gh.igh. th. interactions between BoBTCs and local weath.r systems th.t influence th. general precipitation anomalies and occurrence of EP over Ch.na,especially over distant regions.

关键词： tropical cyclone Bay of Bengal precipitation anomaly moisture transport