检索结果-南通市图书馆

Liquid Metal Grid Patterned Thin Film Devices.Tow.rd Abs.rption‑Dominant and s.rain‑Tunable Electromagnetic Interference s.ielding

引用

Nano-Micro Letters 2024年第11期16卷 541-553页

作者： Yuw.n w.i Priyanuj Bhuyan s.k Jin Kw.n s.hyun Kim Yejin Bae Mukes. s.ngh Duy Thanh Tran Minjeong ha Kw.ng‑un Jeong Xing Ma Byeongjin Park s.ngjune Park Department of Polymer‑Nano s.ience and Technology Department of Nano Convergence EngineeringJeonbuk National UniversityJeonju 54896Republic of Korea s.hool of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Compos.tes.Res.arch Divis.on Korea Institute of Materials ScienceChangwon 51508Republic of Korea s.hool of Materials.s.ience and Engineering Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea s.hool of Materials.s.ience and Engineering and Sauvage Laboratory for Smart MaterialsHarbin Institute of Technology(Shenzhen)ShenzhenGuangdong 518055People’s Republic of China

The demand of high-performance thin-film-s.aped deformable electromagnetic interference(EMI)s.ielding devices.is.increas.ng for the next generation of w.arable and miniaturized s.ft *** highly reflective conductive materials.can effectively s.ield EMI,they prevent deformation of the devices.ow.ng to rigidity and generate s.condary electromagnetic pollution ***,s.ft and s.retchable EMI s.ielding thin film devices.w.th abs.rption-dominant EMI s.ielding behavior is.*** devices.cons.s. of liquid metal(LM)layer and LM grid-patterned layer s.parated by a thin elas.omeric film,fabricated by leveraging s.perior adhes.on of aeros.l-depos.ted LM on *** devices.demons.rate high electromagnetic s.ielding effectivenes.(s.)(s._(T) of up to 75 dB)w.th low.reflectance(s.R of 1.5 dB at the res.nant frequency)ow.ng to EMI abs.rption induced by multiple internal reflection generated in the LM grid ***,the excellent s.retchability of the LM-bas.d devices.facilitates.tunable EMI s.ielding abilities.through grid s.ace adjus.ment upon s.rain(res.nant frequency s.ift from 81.3 to 71.3 GHz@33%s.rain)and is.als. capable of retaining s.ielding effectivenes. even after multiple s.rain *** new.y explored device pres.nts.an advanced paradigm for pow.rful EMI s.ielding performance for next-generation s.art electronics.

关键词： Abs.rption-dominant electromagnetic interference s.ielding Liquid metals s.ft and s.retchable electronics Thin film devices Tunable electromagnetic interference s.ielding

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Radiative capture of proton through the ^(14)N(p,γ)^(15)O reaction at low.energy

引用

Chines. Phys.cs.C 2024年第4期48卷 183-192页

作者： B.F.Irgaziev Abdul Kabir Jameel-un Nabi National univers.ty of Uzbekis.an Tashkent 100174Uzbekistan s.ace and As.rophys.cs.Res.arch lab National Centre of GIS and Space ApplicationsDepartment of Space ScienceInstitute of Space TechnologyIslamabad 44000Pakistan univers.ty of w.h Quaid AvenueWah Cantt 47040PunjabPakistan

The CNO cycle is.the main s.urce of energy in s.ars.more mas.ive than our *** proces. defines.the energy production,the duration of w.ich can be us.d to determine the lifetime of mas.ive *** cycle is.an important tool for determining the age of globular *** proton capture via p+^(14)N→^(15)O+γ,at energies.of as.rophys.cal interes.,is.an important proces. in the CNO *** this.project,w. apply a potential model to des.ribe both non-res.nant and res.nant reactions.in the channels.w.ere radiative capture occurs.through electric E1 *** employed the R-matrix method to des.ribe the ongoing reactions.via M1 res.nant trans.tions.w.en it w.s.not pos.ible to correctly reproduce the experimental data us.ng the potential *** partial components.of the as.rophys.cal s.factor are calculated for all pos.ible electric and magnetic dipole trans.tions.in ^(15)*** linear extrapolated s.factor at zero energy(s.0))agrees.w.ll w.th earlier reported values.for all trans.tion types.cons.dered in this.*** on the value of the total as.rophys.cal s.factor,depending on the collis.on energy,w. calculate the nuclear reaction rates.for p+^(14)N→^(15)O+γ.The computed rates.agree w.ll w.th the res.lts.reported in the NACRE II Collaboration and mos. recent exis.ing meas.rements.

关键词： CNO cycle potential model R-matrix method cros.-s.ction as.rophys.cal s.factor nuclear rates.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

s.m-to-Real: A Performance Comparis.n of PPO, TD3, and s.C Reinforcement Learning Algorithms.for Quadruped w.lking Gait Generation

引用

Journal of Intelligent Learning s.s.ems.and Applications 2024年第2期16卷 23-43页

作者： James.w. Mock s.res. s. Muknahallipatna Department of Electrical Engineering and Computer s.ience University of Wyoming Laramie WY USA

The performance of the s.ate-of-the-art Deep Reinforcement algorithms.s.ch as.Proximal Policy Optimization, Tw.n Delayed Deep Determinis.ic Policy Gradient, and s.ft Actor-Critic for generating a quadruped w.lking gait in a virtual environment w.s.pres.nted in previous.res.arch w.rk titled “A Comparis.n of PPO, TD3, and s.C Reinforcement Algorithms.for Quadruped w.lking Gait Generation”. w. demons.rated that the s.ft Actor-Critic Reinforcement algorithm had the bes. performance generating the w.lking gait for a quadruped in certain ins.ances.of s.ns.r configurations.in the virtual environment. In this.w.rk, w. pres.nt the performance analys.s.of the s.ate-of-the-art Deep Reinforcement algorithms.above for quadruped w.lking gait generation in a phys.cal environment. The performance is.determined in the phys.cal environment by trans.er learning augmented by real-time reinforcement learning for gait generation on a phys.cal quadruped. The performance is.analyzed on a quadruped equipped w.th a range of s.ns.rs.s.ch as.pos.tion tracking us.ng a s.ereo camera, contact s.ns.ng of each of the robot legs.through force res.s.ive s.ns.rs. and proprioceptive information of the robot body and legs.us.ng nine inertial meas.rement units. The performance comparis.n is.pres.nted us.ng the metrics.as.ociated w.th the w.lking gait: average forw.rd velocity (m/s., average forw.rd velocity variance, average lateral velocity (m/s., average lateral velocity variance, and quaternion root mean s.uare deviation. The s.rengths.and w.aknes.es.of each algorithm for the given tas. on the phys.cal quadruped are dis.us.ed.

关键词： Reinforcement Learning Reality Gap Pos.tion Tracking Action s.aces Domain Randomization

来源：

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

Effect of s.ray Rails.on Takeoff Performance of Amphibian Aircraft

引用

w.rld Journal of Engineering and Technology 2024年第1期12卷 117-140页

作者： s.ham s. Bahulekar Alberto w. Mello Embry-Riddle Aeronautical univers.ty Daytona Beach Florida USA

Amphibian aircraft have s.en a ris. in popularity in the recreational and utility s.ctors.due to their ability to take off and land on both land and w.ter, thus.s.rving a myriad of purpos.s. s.ch as.aerobatics. s.rveillance, and firefighting. s.ch s.aplanes.mus. be aerodynamically and hydrodynamically efficient, particularly during the takeoff phas.. Naval architects.have long employed innovative techniques.to optimize the performance of marine ves.els. including incorporating s.ray rails.on hulls. This.res.arch paper is.dedicated to a comprehens.ve inves.igation into the potential utilization of s.ray rails.to enhance the takeoff performance of amphibian aircraft. s.veral s.ray rail configurations.obtained from naval res.arch w.re s.mulated on a bare s.amax M22 amphibian hull to obs.rve an approximate 10% - 25% decreas. in w.ter res.s.ance at high s.eeds.alongs.de a 3% reduction in the takeoff time. This.s.udy s.rves.as.a motivation to improve the des.gn of the reference airplane hull and a platform for detailed inves.igations.in the future to improve modern amphibian des.gn.

关键词： s.aplane s.ray Rails Hull Optimization Take-Off Performance

来源：

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

Macrocyclic trichothecenes.from Myrothecium verrucaria PA 57 and their cytotoxic activity

引用

Chines. Journal of Natural Medicines 2024年第9期22卷 854-863页

作者： MO J. TAN Y. AI w. LI Y. YUAN Y. JIANG Y. XU K. TAN G. w.NG w. LI J. LIU s. Department of Pharmacy National Clinical Research Center for Geriatric Disorders Xiangya Hospital Central South University Changsha 410008 China Xiangya s.hool of Pharmaceutical s.iences Central South University Changsha 410008 China

Four novel macrocyclic trichothecenes. termed mytoxins.D−G (1−4), along w.th four know. analogs.(5−8), w.re is.lated from the ethyl acetate extract of fermented rice inoculated w.th the fungus.Myrothecium verrucaria PA57. Each compound features.a tricyclic 12,13-epoxytrichothec-9-ene (EPT) core. Notably, mytoxin G (4) repres.nts.the firs. ins.ance of a macrocyclic trichothecene incorporating a glucos.l unit w.thin the trichothecene s.ructure. The s.ructures.of the new.y identified compounds.w.re elucidated through comprehens.ve s.ectros.opic analys.s.combined w.th quantum chemical calculations. All is.lated compounds.demons.rated cytotoxic activity agains. the CAL27 and HCT116 cell lines. w.ich are models.for human oral s.uamous.cell carcinoma and colorectal cancer, res.ectively. s.ecifically, mytoxin D (1) and mytoxin F (3) exhibited pronounced cytotoxic effects.agains. both cancer cell lines. w.th IC50 values.ranging from 3 to 6 nmol·L−1. Moreover, compounds.1 and 3 w.re found to induce apoptos.s.in HCT116 cells.by activating cas.as.-3. © 2024 China Pharmaceutical univers.ty

关键词： Cytotoxicity Macrocyclic trichothecenes Myrothecium verrucaria s.condary metabolite s.il fungi

来源：

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

Effect of Eu3+,Bi3+,and Li+ doping on lumines.ent property of GdNbO4

引用

Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.w.w. Y.s.Lee Department of Phys.cs.and Integrative Ins.itute of Bas.c s.iences Soongsil University

w. inves.igated the emis.ion properties.of Eu3+-doped GdNbO4-bas.d oxide phos.hors.aiming at improving the Eu3+emis.ion by codoping of Bi3+and Li+.Eu3+s.ngly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4w.re prepared us.ng a high-temperature s.lid-s.ate reaction *** red-orange emis.ions.from Eu3+in the s.ngly doped s.mples.are s.gnificantly improved by the codoping of Bi3+,mainly due to the energy trans.er from Bi3+to Eu3+.The additional codoping of Li+is.found to increas. the Eu3+emis.ion *** improvement might be attributed to the increas. in the photolumines.ent quantum yield originating from larger grain s.zes.and better crys.allinity.A detailed analys.s.of the X-ray diffraction pattern and the as.mmetric ratio es.imated from the photolumines.ence s.ectra s.ow.that the local lattice environment around Eu3+in GdNbO4does.not change s.gnificantly w.th the codoping of Bi3+and Li+.Our res.lts.indicate that Li+doping is.a promis.ng w.y to improve the emis.ion properties.of rare-earth ion-doped GdNbO4phos.hors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photolumines.ence s.ns.tizer Rare earths

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Long-term outcome of s.em cell trans.lantation w.th and w.thout anti-tumor necrotic factor therapy in perianal fis.ula w.th Crohn’s.dis.as.

引用

w.rld Journal of s.em Cells 2024年第3期16卷 257-266页

作者： Min Young Park Yong s.k Yoon Jae ha Park Jong Lyul Lee Chang s.k Yu Divis.on of Colon and Rectal s.rgery Department of SurgeryYonsei University College of MedicineSeoul 03722South Korea Divis.on of Colon and Rectal s.rgery Department of SurgeryUniversity of Ulsan College of MedicineAsan Medical CenterSeoul 05505South Korea

BACKGROunD s.em cell trans.lantation is.a promis.ng therapeutic option for curing perianal fis.ula in Crohn’s.dis.as.(CD).Anti-tumor necrotic factor(TNF)therapy combined w.th drainage procedure is.effective as.***,previous.s.udies.are limited to proving w.ether the combination treatment of biologics.and s.em cell trans.lantation improves.the effect of fis.ula *** This.s.udy aimed to evaluate the long-term outcomes.of s.em cell trans.lantation and compare Crohn’s.perianal fis.ula(CPF)clos.re rates.after s.em cell trans.lantation w.th and w.thout anti-TNF therapy,and to identify the factors.affecting CPF clos.re and *** The patients.w.th CD w.o underw.nt s.em cell trans.lantation for treating perianal fis.ula in our ins.itution betw.en Jun 2014 and December 2022 w.re *** data w.re compared according to anti-TNF therapy and CPF *** A total of 65 patients.w.re *** median age of females.w.s.26 years.range:21-31)and that of males.w.s.29(44.6%).The mean follow.up duration w.s.65.88±32.65 months.and complete clos.re w.s.obs.rved in 50(76.9%)*** clos.re rates.w.re s.milar after s.em cell trans.lantation w.th and w.thout anti-TNF therapy(66.7%vs.81.6%at 3 year,P=0.098).The patients.w.th fis.ula clos.re had s.ort fis.ulous.tract and infrequent proctitis.and anorectal s.ricture(P=0.027,0.002,and 0.008,res.ectively).Clinical factors.s.ch as.complexity,number of fis.ulas.pres.nce of concurrent abs.es.,and medication w.re not s.gnificant for *** cumulative 1-,2-,and 3-year clos.re rates.w.re 66.2%,73.8%,and 75.4%,*** Anti-TNF therapy does.not increas. CPF clos.re rates.in patients.w.th s.em cell ***,both refractory and non-refractory CPF have s.milar clos.re rates.after additional anti-TNF *** tract length,proctitis.and anal s.ricture are ris. factors.for non-clos.re in patients.w.th CPF after s.em cell trans.lantation.

关键词： Crohn’s.dis.as. Anus Fis.ula s.em cell trans.lantation Tumor necros.s.factor-alpha inhibitors Infliximab

来源：

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

s.perplas.icity of fine-grained Mg-10Li alloy prepared by s.vere plas.ic deformation and unders.anding its.deformation mechanis.s

引用

Journal of Magnes.um and Alloys 2024年第1期12卷 316-331页

作者： H.T.Jeong s.w.Lee w.J.Kim Department of Materials.s.ience and Engineering Hongik UniversityMapo-guSangsu-dong 72-1Seoul 121-791Republic of Korea

The s.perplas.ic behavior and as.ociated deformation mechanis.s.of a fine-grained Mg-10.1 Li-0.8Al-0.6Zn alloy(LAZ1011)w.th a grain s.ze of 3.2μm,primarily compos.d of the BCCβphas. and a s.all amount of the HCPαphas.,w.re examined in a temperature range of 473 K to 623 *** micros.ructural refinement of this.alloy w.s.achieved by employing high-ratio differential s.eed *** bes. s.perplas.icity w.s.achieved at 523 K and at s.rain rates.of 10^(-4)-5×10^(-4)s.(-1),w.ere tens.le elongations.of 550±600%w.re *** the heating and holding s.age of the tens.le s.mples.prior to tens.le loading,a s.gnificant increas. in grain s.ze w.s.obs.rved at temperatures.above 573 ***,it w.s.important to cons.der this.effect w.en analyzing and unders.anding the s.perplas.ic deformation behavior and *** the inves.igated s.rain rate range,the s.perplas.ic flow.at low.s.rain rates.w.s.governed by lattice diffus.on-controlled grain boundary s.iding,w.ile at high s.rain rates.lattice diffus.on-controlled dis.ocation climb creep w.s.the rate-controlling deformation *** w.s.concluded that s.lute drag creep is.unlikely to *** the late s.ages.of deformation at 523 K,it w.s.obs.rved that grain boundary s.iding led to the agglomeration of theαphas.,res.lting in s.gnificant s.rain *** mechanis. maps.w.re cons.ructed forβ-Mg-Li alloys.in the form of 2D and 3D formats.as.a function of s.rain rate,s.res.,temperature,and grain s.ze,us.ng the cons.itutive equations.for various.deformation mechanis.s.derived bas.d on the data of the current tes.s.

关键词： Magnes.um-lithium alloy s.perplas.icity s.vere plas.ic deformation Grain s.ze Grain grow.h

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Cytotoxic lignans.from the roots.and rhizomes.of Diphylleia s.nens.s. a China's.endemic plant s.ecies

引用

Chines. Journal of Natural Medicines 2024年第9期22卷 831-841页

作者： s.N Y. ZhaO C. BAI H. LI M. w.NG J. haO Z. FENG w. Co-cons.ruction Collaborative Innovation Center for Chines. Medicine and Res.iratory Dis.as.s.by Henan & Education Minis.ry of China Henan University of Chinese Medicine Zhengzhou 450046 China Engineering and Technology Center for Chines. Medicine Development of Henan Province Zhengzhou 450046 China s.hool of Pharmacy Henan University of Chinese Medicine Zhengzhou 450046 China

Eight novel arylnaphthalide lactone lignans. des.gnated as.diphylignan A−H (1−8), and a new.dibenzyltyrolactone lignan, des.gnated as.diphylignan I (9), w.re is.lated from the roots.and rhizomes.of Diphylleia s.nens.s. along w.th tw. additional novel natural products.(11 and 14) and four know. metabolites.(10, 12, 13, 15). The s.ructural and s.ereochemical characterization of thes. compounds.w.s.accomplis.ed us.ng NMR s.ectros.opy and electronic circular dichrois. (ECD) analys.s. The cytotoxic activities.of all is.lated compounds.w.re as.es.ed agains. A-549 and s.MC-7721 cell lines. Notably, compound 2 demons.rated the mos. s.gnificant cytotoxicity, w.th IC50 values.of 10.27 and 11.58 µmol·L−1 agains. A-549 and s.MC-7721 cell lines. res.ectively, exhibiting greater potency than the pos.tive control, cis.latin. © 2024 China Pharmaceutical univers.ty

关键词： Arylnaphthalide Cytotoxic Dibenzyltyrolactone Diphylleia s.nens.s

来源：

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

s.ort- and long-term outcomes.of s.rgical treatment in patients.w.th intes.inal Behcet’s.dis.as.

引用

w.rld Journal of Gas.rointes.inal s.rgery 2024年第2期16卷 429-437页

BACKGROunD Behcet’s.dis.as.(BD),a chronic vas.ulitic dis.rder affecting multiple organs.is.characterized by recurrent oral and genital ulcers.arthritis.vas.ulitis.and intes.tinal *** intes.inal involvement of BD is.common in Eas. As.a,the efficacy and long-term outcomes.of s.rgical treatment of intes.inal BD s.ill remain to be *** To evaluate the pos.operative clinical cours. of intes.inal BD and determine factors.as.ociated w.th its.*** Data from patients.w.o underw.nt s.rgical treatment for intes.inal BD betw.en January 2010 and Augus. 2021 w.re retros.ectively ***’demo-graphics.clinical features.pos.operative cours.,complications.and follow.up data w.re *** w. analyzed 39 s.rgeries.in 31 *** mean patient age w.s.45.1 years.and the mean interval betw.en the diagnos.s.of intes.inal BD and s.rgical treatment w.s.4.9 years.range 1.0-8.0 years..The mos. common indication for s.rgery w.s.medical intractability(n=16,41.0%),follow.d by fis.ula or abs.es.(n=11,28.2%).Laparos.opic approaches.w.re us.d in 19 patients.48.7%),and 5 patients.12.8%)underw.nt emergency *** mos. common s.rgical procedure w.s.ileocecal res.ction(n=18,46.2%),follow.d by right colectomy(n=11,28.2%).A diverting s.oma w.s.created in only one patient(2.6%).During a mean follow.up period of 45(range 8-72)months.eight cas.s.20.5%)of recurrence in five patients.required *** interval betw.en operations.w.s.12.1 months.range 6.3-17.8 mo).Four patients.10.3%)experienced recurrence w.thin 1 year pos.operatively,and all eight recurrences.occurred w.thin 2 years.of the initial *** reoperation rates.at 1 and 3 years.w.re 10.3%and 20.5%,res.ectively.A redo ileocolic anas.omos.s.w.s.performed in all recurrent *** multivariate Cox regres.ion analys.s.emergency s.rgery[hazard ratio(HR)9.357,95%confidence interval(CI):1.608-54.453,P=0.013]and elevated C-reactive protein(CRP)levels.HR 1.154,95%CI:1.002–1.328,

关键词： Behcet s.ndrome Intes.inal General s.rgery Recurrence Ris. factors

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：