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Nano Research 2024年第5期17卷 3724-3732页

作者： Bowen Wang Nan zhang Ping Xiao Jian zhang Sónia A.c..arabineiro Junjiang Zhu Hubei Key Laboratory of Biomass Fibers and Ec..dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhan 430200China c..lege of c..mistry and Materials Engineering Wenzhou UniversityWenzhou 325035China LAQV-REQUIMTE Department of ChemistryNOVA School of Science and TechnologyUniversidade NOVA de LisboaLargo da Torre2829-516 CaparicaPortugal

c..alytic..ransfer hydrogenation(c..)is a green and effic..nt pathway for selec..ve hydrogenation of unsaturated aldehydes and ***,managing the abilities of solid c..alysts to adsorb substrates and to c..vert them into desired produc.. is a c..llenging ***,we report the synthesis of c..bon c..ted LaFe_(0.92)Pd_(0.08)O_(3) c..posites(LFPO-8@c..or c.. of benzaldehyde(BzH)into benzyl alc..ol(BzOH),using isopropanol(IPA)as hydrogen *** c..ting with c..bon improves the ability to adsorb/transfer reac..nts from solution to ac..ve sites,and the doping of Pd2+at Fe3+site strengthens the ability of LaFeO_(3) to c..vert BzH into BzOH.A balanc.. point between them(i.e.,abilities to adsorb BzH and to c..vert BzH into BzOH)is obtained at LFPO-8@c..hic..exhibits a BzOH formation rate of 3.88 mmol·gc..^(-1)·h^(-1) at 180℃ for 3 h,whic..is 1.50 and 2.72 times faster than those of LFPO-8 and LaFeO_(3)@c.. reac..on mec..nism is proposed,in whic..the ac..ic..ites(e.g.,Fe^(4+),oxygen vac..c..are used for the ac..vation of c.. bond of BzH and O-H bond of IPA,and the basic..ites(e.g.,lattic..oxygen)for the ac..vation ofα-H(O-H)bond of IPA.

关键词： LaFe_(0.92)Pd_(0.08)O_(3) porous c..bon c..alytic..ransfer hydrogenation isopropanol reac..on mec..nism

An improved pulse c..pled neural networks model for semantic..oT

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Digital c..munic..ions and Networks 2024年第3期10卷 557-567页

作者： Rong Ma Zhen zhang Yide Ma Xiping Hu Edith c...Ngai Vic..r c...Leung Sc..ol of Information Sc..nc..and Engineering Lanzhou UniversityLanzhou 730000China Sc..ol of Medic.. Tec..ology Beijing Institute of TechnologyBeijing100081China Department of Elec..ic.. and Elec..onic..ngineer The University of Hong KongHong Kong 999077China c..lege of c..puter Sc..nc..and Software Engineering Shenzhen UniversityShenzhen 518060China Department of Elec..ic.. and c..puter Engineering the University of British ColumbiaVancouverBC V6T 1Z4Canada

In rec..t years,the Internet of Things(IoT)has gradually developed applic..ions suc..as c..lec..ng sensory data and building intelligent servic..,whic..has led to an explosion in mobile data ***,with the rapid development of artific..l intelligenc..semantic..ommunic..ion has attrac..d great attention as a new c..munic..ion ***,for IoT devic..,however,proc..sing image information effic..ntly in real time is an essential task for the rapid transmission of semantic..** the inc..ase of model parameters in deep learning methods,the model inferenc..time in sensor devic.. c..tinues to *** c..trast,the Pulse c..pled Neural Network(Pc..)has fewer parameters,making it more suitable for proc..sing real-time sc..e tasks suc..as image segmentation,whic..lays the foundation for real-time,effec..ve,and ac..rate image ***,the parameters of Pc.. are determined by trial and error,whic..limits its *** overc..e this limitation,an Improved Pulse c..pled Neural Networks(IPc..)model is proposed in this *** IPc.. c..struc.. the c..nec..on between the static..roperties of the input image and the dynamic..roperties of the neurons,and all its parameters are set adaptively,whic..avoids the inc..venienc..of manual setting in traditional methods and improves the adaptability of parameters to different types of *** segmentation results demonstrate the validity and effic..nc..of the proposed self-adaptive parameter setting method of IPc.. on the gray images and natural images from the Matlab and Berkeley Segmentation *** IPc.. method ac..eves a better segmentation result without training,providing a new solution for the real-time transmission of image semantic..nformation.

关键词： Internet of things(IoT) Semantic..nformation Real-time applic..ion Improved pulse c..pled neural network Image segmentation

The prefac.. Interplay of topologic.. and magnetic..rders in the Mn-Bi-Te family

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National Sc..nc..Review 2024年第2期11卷 6-7页

作者： Fu-c..n zhang Hai-Zhou Lu X.c..ie Kavli Institute for Theoretic.. Sc..nc.. University of Chinese Academy of Sciences Department of Physics Southern University of Science and Technology (SUSTech) International c..ter for Quantum Materials School of Physics Peking University

The disc..ery and synthesis of MnBi2Te4in 2013 initially garnered little attention [1]. Yet, the revelation of its topologic.. properties in 2019 [2–6] sparked a surge of researc..into the MnBiTe family. These extensive studies are primarily driven by two objec..ves:the realization of a high-temperature quantum anomalous Hall effec..（QAHE） and the exploration of exotic..hases born from the interplay of topologic.. and magnetic..rders,

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N-doped graphene quantum dot-dec..ated N-TiO2/P-doped porous hollow g-c..3)N_(4) nanotube c..posite photoc..alysts for antibiotic..hotodegradation and H2 produc..on

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International Journal of Minerals,Metallurgy and Materials 2024年第1期31卷 165-178页

作者： Jingshu Yuan Yao zhang Xiaoyan zhang Junjie zhang Shen’gen zhang Institute for Advanc.. Materials and Tec..ology University of Science and Technology BeijingBeijing 100083China Xi’an Fanyi University Xi’an 710105China Shunde Graduate Sc..ol of University of Sc..nc..and Tec..ology Beijing Foshan 528399China State Key Laboratory of Lunar and Planetary Sc..nc.. Macao University of Science and TechnologyMacao SAR 820000China

Exc..sive responsiveness to ultraviolet light (~3.2 eV) and high photogenerated c..rge rec..bination rate are the two primary drawbac.. of pure TiO_(2). We c..bined N-doped graphene quantum dots (N-GQDs), morphology regulation, and heterojunc..on c..struc..on strategies to synthesize N-GQD/N-doped TiO_(2)/P-doped porous hollow g-c..3)N_(4) nanotube (Pc.. c..posite photoc..alysts (denoted as G-TPc... The optimal sample (G-TPc..doped with 0.1wt% N-GQD, denoted as 0.1% G-TPc.. exhibits signific..tly enhanc.. photoabsorption, whic..is attributed to the c..nge in bandgap c..sed by elemental doping (P and N), the improved light-harvesting resulting from the tube struc..re, and the upc..version effec..of N-GQDs. In addition, the internal c..rge separation and transfer c..ability of0.1% G-TPc..are dramatic..ly boosted, and its c..rier c..c..tration is 3.7, 2.3, and 1.9 times that of N-TiO_(2), Pc.. and N-TiO_(2)/Pc..TPc..1), respec..vely. This phenomenon is attributed to the formation of Z-sc..me heterojunc..on between N-TiO_(2) and Pc.., the exc..lent elec..on c..duc..on ability of N-GQDs, and the short transfer distanc..c..sed by the porous nanotube struc..re. c..pared with those of N-TiO_(2), Pc.., and TPc..1, the H2 produc..on ac..vity of 0.1%G-TPc..under visible light is enhanc.. by 12.4, 2.3, and 1.4times, respec..vely, and its c..rofloxac.. (c..) degradation rate is inc..ased by 7.9, 5.7, and 2.9 times, respec..vely. The optimized performanc..benefits from exc..lent photoresponsiveness and improved c..rier separation and migration effic..nc..s. Finally, the photoc..alytic..ec..nism of 0.1% G-TPc..and five possible degradation pathways of c.. are proposed. This study c..rifies the mec..nism of multiple modific..ion strategies to synergistic..ly improve the photoc..alytic..erformanc..of 0.1% G-TPc..and provides a potential strategy for rationally designing novel photoc..alysts for environmental remediation and solar energy c..version.

关键词： N-doped TiO_(2) N-doped graphene quantum dots P-doped g-c..3)N_(4) porous hollow nanotube heterojunc..on photoc..alysis

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Finite barrier bound state

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Light(Sc..nc..& Applic..ions) 2024年第4期13卷 664-671页

作者： Tao Liu Kai Bai Yic..ng zhang Duanduan Wan Yun Lai c...c..n Meng Xiao Key Laboratory of Artific..l Mic..-and Nano-struc..res of Ministry of Educ..ion and Sc..ol of Physic..and Tec..ology Wuhan University430072 WuhanChina. National Laboratory of Solid State Mic..struc..res School of Physicsand Collaborative Innovation Center of Advanced MicrostructuresNanjing University210093 NanjingChina. Department of Physics The Hong Kong University of Science and TechnologyClear Water BayKowloon999077Hong KongChina. Wuhan Institute of Quantum Tec..ology 430206 WuhanChina

A boundary mode loc..ized on one side of a finite-size lattic..c.. tunnel to the opposite side whic..results in unwanted *** wisdom tells that the tunneling probability dec..s exponentially with the size of the system whic..thus requires many lattic..sites before eventually bec..ing negligibly *** we show that the tunneling probability for some boundary modes c.. apparently vanish at spec..ic..**,similar to bound states in the c..tinuum,a boundary mode c.. be c..pletely trapped within very few lattic..sites where the bulk bandgap is not even *** intriguingly,the number of trapped states equals the number of lattic..sites along the normal direc..on of the *** provide two c..figurations and validate the existenc..of this pec..iar finite barrier-bound state experimentally in a dielec..ic..hotonic..rystal at mic..wave *** work offers extreme flexibility in tuning the c..pling between loc..ized states and c..nnels as well as a new mec..nism that fac..itates unprec..ented manipulation of light.

关键词： boundary state eventually

Proximal Femur Bionic..ail (PFBN): A Panac.. for Unstable Intertroc..nteric..emur Frac..re

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Engineering 2024年第6期37卷 152-158页

作者： Kaixuan zhang Wei c..n Yingze zhang Sc..ol of Medic..e Nankai UniversityTianjin 300071China Department of Orthopedic..urgery of Hebei Province The Third Hospital of Hebei Medical UniversityShijiazhuang 050051China Key Laboratory of Biomec..nic..of Hebei Province Orthopaedic Research Institute of Hebei ProvinceShijiazhuang 050051China National Health c..mission(NHc..ey Laboratory of Intelligent Orthopeadic..quipment The Third Hospital of Hebei Medical UniversityShijiazhuang 050051China c..nese Ac..emy of Engineering Beijing 100088China

With the aging population,intertroc..nteric..emur frac..re in the elderly has bec..e one of the most serious public..ealth issues and a hot topic..f researc..in trauma *** to the limitations of internal fixation tec..iques and the insuffic..nt mec..nic.. design of nails,the oc..rrenc..of c..plic..ions delays patient rec..ery after surgic.. *** of a proximal femur bionic..ail(PFBN)based on zhang’s N triangle theory provides triangular supporting fixation,whic..dramatic..ly dec..ases the oc..rrenc..of c..plic..ions and has been widely used for c..nic.. treatment of unstable intertroc..nteric..emur frac..re *** this work,we developed an equivalent biomec..nic.. model to analyze improvement in bone remodeling of unstable intertroc..nteric..emur frac..re through PFBN *** results show that c..pared with proximal femoral nail antirotation(PFNA)and InterTan,PFBN c.. dramatic..ly dec..ase the maximum strain in the proximal *** on Frost’s mec..nostat theory,the loc.. mec..nic.. environment in the proximal femur c.. be regulated into the medium overload region by using a PFBN,whic..may render the proximal femur in a state of physiologic.. overload,favoring post-operative rec..ery of intertroc..nteric..emur frac..re in the *** work shows that PFBN may c..stitute a panac.. for unstable intertroc..nteric..emur frac..re and provides insights into improving methods of internal fixation.

关键词： Intertroc..nteric..emur frac..re Internal fixation Proximal femur bionic..ail(PFBN) Biomec..nics Bone remodeling

Summarizing the evidenc..for robotic..ssisted bladder nec..rec..struc..on: Systematic..eview of patenc..and inc..tinenc..outc..es

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Asian Journal of Urology 2024年第3期11卷 341-347页

作者： Tenny R.zhang Ashley Alford Lee c..hao Department of Urology NewYork-Presbyterian Hospital/Weill Cornell MedicineNew YorkNYUSA Department of Urology NYU Langone Medical CenterNew YorkNYUSA

Objec..ve:Bladder nec..c..trac..re and vesic..rethral anastomotic..tenosis are diffic..t to manage endosc..ic..ly,and open repair is assoc..ted with high rates of *** rec..t years,there have been inc..asing reports of robotic..ssisted bladder nec..rec..struc..on in the ***,existing studies are small,heterogeneous c..e *** objec..ve of this study was to perform a systematic..eview of robotic..ssisted bladder nec..rec..struc..on to better evaluate patenc..and inc..tinenc..***:We performed a systematic..eview of PubMed from first available date to May 2023 for all studies evaluating robotic..ssisted rec..struc..ve surgery of the bladder nec..in adult *** in non-English,author replies,editorials,pediatric..ased studies,and reviews were *** of interest were patenc..and inc..tinenc..rates,whic..were pooled when ***:After identifying 158 artic..s on initial searc..we inc..ded only ten studies that fit all aforementioned c..teria for robotic..ssisted bladder nec..*** were c..e series published from Marc..2018 to Marc..2022 ranging from six to 32 men,with the median follow-up of 5e23 months.A total of 119 patients were inc..ded in our analysis.A variety of etiologies and surgic.. tec..iques were *** rates ranged from 50%to 100%,and pooled patenc..was 80%(95/119).De novo inc..tinenc..rates ranged from 0%to 33%,and pooled inc..tinenc..was 17%(8/47).Our findings were limited by small sample sizes,relatively short follow-ups,and heterogeneity between studies.

关键词： Bladder neck c..tinence Inc..tinence Patency Posterior urethra Rec..struc..ve surgery Robotic..urgery Stenosis Stric..re Surgic.. outc..e

Periodic..ariation Studies of the Two Short Period W UMa-type Ec..psing Binaries: LX Lyn and V0853 Aur

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Researc..in Astronomy and Astrophysics 2024年第1期24卷 273-284页

作者： Xu zhang Bin zhang Sc..ol of Physic..and Elec..onic..c..nce Guizhou Normal UniversityGuiyang 550001China Guizhou Provinc..l Key Laboratory of Radio Astronomy and Data Proc..sing Guizhou Normal UniversityGuiyang 550025China

In this paper,new light c..ves(Lc.. of c..tac..ec..psing binary(c..) systems LX Lyn and V0853 Aur are presented and analyzed by using the 2015 version of the Wilson-Devinney(W-D) *** order to explain their asymmetric..c..c..l starspots on the c..ponents were *** is suggested that their fill-out degrees are f=12.0%(LX Lyn) and f=26.3%(V0853 Aur).At the same time,we found that LX Lyn is a W-type ec..psing binary(EB) with an orbital inc..nation of i=84°.88 and a mass ratio of q=2.31.V0853 Aur is also a W-type c.. with a mass ratio of q=2.77 and an orbital inc..nation of i= 79°.*** on all available times of light minimum,their orbital period c..nges are studied by using the O-c..** O-c..iagram of LX Lyn reveals a c..lic..sc..lation with a period of about 14.84 yr and an amplitude of 0.0019 days,whic..c.. be explained by the light-travel time effec..LTTE) due to the presenc..of a third body with a minimum mass of0.06M_⊙.For V0853 Aur,it is disc..ered that the O-c..iagram of the system also shows a c..lic..sc..lation with a period of 9.64 yr and an amplitude of 0.03365 *** c..lic..sc..lation of V0853 Aur c.. be attributed to the LTTE by means of a third body with a mass no less than 3.77M_⊙.The third body may play an important role in the formation and evolution of these systems.

关键词： stars:ac..vity (stars:)binaries(inc..ding multiple):c..se (stars:)binaries:ec..psing (stars:)brown dwarfs stars:evolution stars:formation

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Unveiling the protec..ve role of biofilm formation on the photoaging of mic..plastics

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Sc..nc..c..na Tec..ologic.. Sc..nc.. 2024年第10期67卷 3067-3078页

作者： zhang HaiYu LIU Peng zhang JiaYu DAI JiaMin zhang XinRui zhang ZiXuan JIA HanZhong Key Laboratory of Plant Nutrition and the Agri-environment in Northwest c..na Ministry of AgricultureCollege of Natural Resources and EnvironmentNorthwest A&F University Key Laboratory of Organic..ompound Pollution c..trol Engineering School of Environmental and Chemical EngineeringShanghai University

In natural water, mic..plastic..MPs） inevitably undergo mic..bial c..onization to form biofilm, while the effec..of biofilm formation on the photoaging of MPs remains unknown. This study systematic..ly investigated the photoaging behavior of disposable box-derived polypropylene（PPMPs） and polystyrene（PSMPs） mediated by formed biofilm in water. After inc..ating in Weihe water samples for 105 d, the biofilm was validated to form in PPMPs and PSMPs, with higher formation in PSMPs. In partic..ar, biofilm formation inhibited the photoaging of PPMPs and PSMPs, with an 11.1% and 50.6% dec..ase in photooxidation c..pared to their virgin c..nterparts after 20 d of ultraviolet（UV） irradiation. Moreover, the photoaging route of MPs suc..as the reac..on priority of func..onal groups（e.g., c.., c.., and benzene ring） was altered, indic..ing the important role of biofilm formation in the photoaging proc..s of MPs. The protec..ve effec..of the biofilm was mainly c..sed by the role of optic.. light filters that absorbed UV energy by sac..fic..g themselves. Also, as the main attac..r on MPs, the produc..on of reac..ve oxygen spec..s（ROS, mainly1O2and ·OH） was inhibited by biofilm, whic..was mainly responsible for the dec..ased photoaging of MPs. This study revealed the important role of biofilm in the photoaging proc..s of MPs and suggested a higher resistanc..of（mic..）plastic..in natural water than that in the laboratory using pure MPs, whic..c..tributed to a deeper understanding of the environmental fate and pollution of MPs.

关键词： mic..plastics biofilm photoaging physic.. shielding reac..ve oxygen spec..s

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Photoionisation detec..on of a single Er3+ ion with sub-100-ns time resolution

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National Sc..nc..Review 2024年第4期11卷 38-45页

作者： Yangbo zhang Wenda Fan Jiliang Yang Hao Guan Qi zhang Xi Qin c..ngkui Duan Gabriele G.de Boo Brett c..ohnson Jeffrey c..c..allum Matthew J.Sellars Sven Rogge c..nming Yin Jiangfeng Du c.. Key Laboratory of Mic..sc..e Magnetic..esonanc..and Sc..ol of Physic.. Sc..nc.. University of Science and Technology of China c.. c..ter for Exc..lenc..in Quantum Information and Quantum Physics University of Science and Technology of China Hefei National Laboratory University of Science and Technology of China c..tre of Exc..lenc..for Quantum c..putation and c..munic..ion Tec..ology School of Physics University of New South Wales c..tre of Exc..lenc..for Quantum c..putation and c..munic..ion Tec..ology School of Engineering RMIT University c..tre of Exc..lenc..for Quantum c..putation and c..munic..ion Tec..ology School of Physics University of Melbourne c..tre of Exc..lenc..for Quantum c..putation and c..munic..ion Tec..ology Research School of Physics and Engineering Australian National University

Effic..nt detec..on of single optic.. c..tres in solids is essential for quantum information proc..sing, sensing and single-photon generation *** this work,we use radio-frequenc..RF） reflec..metry to elec..ic..ly detec..the photoionisation induc.. by a single Er3+ion in *** high bandwidth and sensitivity of the RF reflec..metry provide sub-100-ns time resolution for the photoionisation *** this tec..ique,the optic..ly exc..ed state lifetime of a single Er3+ion in a Si nano-transistor is measured for the first time to be 0.49±0.04μ*** results demonstrate an effic..nt approac..for detec..ng a c..rge state c..nge induc.. by Er exc..ation and *** approac..c..ld be used for fast readout of other single optic.. c..tres in solids and is attrac..ve for large-sc..e integrated optic.. quantum systems thanks to the multi-c..nnel RF reflec..metry demonstrated with frequenc..multiplexing tec..iques.

关键词： single optic.. c..tres erbium ions RF reflec..metry photoionisation detec..on