作者机构：
[Jans, E; van Veghel, M; Hulsbergen, W; Biolchini, A; Koppenburg, P; Galati, M D; Greeven, L M; Merk, M; Lukashenko, V; Heijhoff, K; Pellegrino, A; de Boer, J; Magdalinski, D; Kostiuk, I; Butter, J S; Ketel, T; Sanchez Gras, C; Graziani, G; Kotriakhova, S; Aaij, R; Ferreres Sole, S; Snoch, A; Gabriel, E; Tuning, N; Bizzeti, A; Akiba, K; Geertsema, R E] Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands;[Xu, M; Pagare, B; Grazette, L; Abdelmotteleb, A S W; Muhammad, E; Monk, M; Ward, J A; Paolucci, L; Davidson, A; Wiederhold, A R; Swystun, F; Henderson, R D L; Latham, T; Beck, A; Gershon, T; Graziani, G; Kotriakhova, S; Ramos Pernas, M; Blake, T; Cicala, M F; Bizzeti, A; Jones, T P; Vesterinen, M; Hunter, R J; Back, J J; Kreps, M; Abudinén, F] Department of Physics, University of Warwick, Coventry, United Kingdom;[Mathad, A; Bezshyiko, Ia; Owen, P; Serra, N; Buonaura, A; Andersson, M; Bellee, V; Wang, Z; Steinkamp, O; Abellan Beteta, C; Andreola, P; Müller, K; Esen, S; Ferrillo, M; Denysenko, V; Graziani, G; Kotriakhova, S; Lancierini, D; Craik, D C; De Simone, D; Eschle, J; Bernet, R; Bizzeti, A; Terentev, A; Manzari, C A; Betancourt, C] Physik-Institut, Universität Zürich, Zürich, Switzerland;[Hennessy, K; Ackernley, T; Chadwick, A J; Harrison, T; Bowcock, T J V; Hutchcroft, D; Brown, J; Naik, P; Chavez Barajas, C A; Howarth, N; Farry, S; Vilella Figueras, E; Rinnert, K; Marshall, P J; Shears, T; Graziani, G; Kotriakhova, S; Halewood-Leagas, T; Hammerich, J; Casse, G; Bizzeti, A; Scherl, S; Rodrigues, E] Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom;[Prouve, C; López Soliño, S; Rodriguez Rodriguez, E; Gallas Torreira, A; Vazquez Regueiro, P; Lomba Castro, J; Rodriguez Fernandez, E; Baladron Rodriguez, P; Fernandez Gomez, M; Vázquez Sierra, C; Corredoira, I; Romero Lamas, M; Chobanova, V; Adeva, B; Brossa Gonzalo, A; Casais Vidal, A; Cid Vidal, X; Pereiro Castro, A; Cambon Bouzas, J; Santamarina Rios, C; Plo Casasus, M; Dalseno, J; Novoa Fernandez, J; Gioventù, A; Graziani, G; Kotriakhova, S; Brea Rodriguez, A; Sellam, S; Carcedo Salgado, L; Romero Vidal, A; Van Hulse, C B; Belin, S; Garcia Plana, B; Eirea Orro, C; Bizzeti, A; Martinez Santos, D; Saborido Silva, J J; Ruiz Fernandez, R A; Landesa Gomez, C; Morcillo Gomez, A] Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
摘要：
The decay-time-dependent CP asymmetry in B_{s}^{0}→J/ψ(→μ^{+}μ^{-})K^{+}K^{-} decays is measured using proton-proton collision data, corresponding to an integrated luminosity of 6 fb^{-1}, collected with the LHCb detector at a center-of-mass energy of 13TeV. Using a sample of approximately 349 000 B_{s}^{0} signal decays with an invariant K^{+}K^{-} mass in the vicinity of the ϕ(1020) resonance, the CP-violating phase ϕ_{s} is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the B_{s}^{0}-B[over ¯]_{s}^{0} system, ΔΓ_{s}, and the difference of the average B_{s}^{0} and B^{0} meson decay widths, Γ_{s}-Γ_{d}. The values obtained are ϕ_{s}=-0.039±0.022±0.006 rad, ΔΓ_{s}=0.0845±0.0044±0.0024 ps^{-1}, and Γ_{s}-Γ_{d}=-0.0056_{-0.0015}^{+0.0013}±0.0014 ps^{-1}, where the first uncertainty is statistical and the second systematic. These are the most precise single measurements to date and are consistent with expectations based on the Standard Model and with the previous LHCb analyses of this decay. These results are combined with previous independent LHCb measurements. The phase ϕ_{s} is also measured independently for each polarization state of the K^{+}K^{-} system and shows no evidence for polarization dependence.
作者：
Zhou, Rui;Chen, Menglin L. N.;Shi, Xintong;Ren, Yan;Yu, Zihao;...
期刊：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,2024年72(2):2058-2063 ISSN：0018-926X
通讯作者：
Chen, MLN;Lin, H
作者机构：
[Zhou, Rui; Chen, Menglin L. N.] Hong Kong Polytech Univ, Dept Elect & Elect Engn, Hong Kong, Peoples R China.;[Zhou, Rui; Ren, Yan; Yu, Zihao; Lin, Hai; Lin, H; Shi, Xintong] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.;[Liu, Y.; Tian, Yu] Hubei Univ, Sch Phys, Dept Phys, Wuhan 430062, Hubei, Peoples R China.;[Liu, Y.] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu, Lanzhou 730000, Gansu, Peoples R China.;[Liu, Y.] Lanzhou Univ, Key Lab Quantum Theory & Applicat MoE, Lanzhou 730000, Gansu, Peoples R China.
通讯机构：
[Lin, H ] C;[Chen, MLN ] H;Hong Kong Polytech Univ, Dept Elect & Elect Engn, Hong Kong, Peoples R China.;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.
摘要：
Waveguides are fundamental components in communication systems. However, they suffer from reflection and scattering losses at sharp routes or defects. The breakthrough in developing topological photonic crystals (PhCs) provides promising solutions to robust signal transmission. In this work, we propose a new mechanism for protecting wave-guiding modes by decorating the boundaries of a conventional waveguide with valley-Hall PhCs. This special layout enables the robust propagation of conventional transverse electric (TE) waves against defects and bends. Moreover, the proposed waveguide is compatible with the substrate-integrated waveguide (SIW). High-efficient mode conversion from the SIW to the proposed waveguide is achievable. By leveraging the idea of topology to conventional waveguides, we provide a powerful and practical tool that can largely improve the performance of microwave and millimeter-wave integrated circuits while reserving the features of wave-guiding modes.
期刊：
Microwave and Optical Technology Letters,2024年66(1):e33954- ISSN：0895-2477
通讯作者：
Jin, J
作者机构：
[Ma, Li; Liu, Wei] Tianjin Univ, Sch Microelect, Tianjin, Peoples R China.;[Zhang, Qi-Jun] Carleton Univ, Dept Elect, Ottawa, ON, Canada.;[Jin, Jing] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan, Peoples R China.;[Zhang, Jianan] Southeast Univ, State Key Lab Millimeter Waves, Nanjing, Peoples R China.
通讯机构：
[Jin, J ] C;Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan, Peoples R China.
关键词：
electromagnetic;finite element method;Padé via Arnoldi;single-size simplification
摘要：
Abstract This paper proposes a new Padé via Arnoldi algorithm with single‐size matrix simplification for electromagnetic (EM) fast frequency sweep. New equations are derived to reduce the double‐size system matrix to single‐size system matrix. We also propose a systematic algorithm to calculate S‐parameters using the simplified single‐size system matrix. Using the proposed algorithm, the EM responses can be obtained with the same accuracy while consuming much less time compared with that using the existing double‐size matrix Padé via Lanczos. The proposed algorithm is demonstrated by two microwave examples.
摘要：
Zinc metal batteries (ZMBs) have received a lot of attention due to their high capacity, proper redox potential and low cost. However, zinc anodes suffer from serious dendritic problems and side reactions, resulting in poor cycling stability of zinc ion batteries. Herein, organic additive trimethyl phosphate (TMP) is introduced into inexpensive ZnSO4 electrolyte to stabilize Zn anode. TMP exhibits bifunctional properties in this cost-effective electrolyte system. It prefers adsorbing on (002) plane of zinc which leads to preferential crystal growth and uniform zinc deposition. Moreover, TMP can reshape the original hydrogen bond network, regulate the solvation structure and inhibit the parasitic reaction generated by water. As a result, the zinc anode with TMP addition could maintain 2000 h at a current density of 0.5 mA cm−2 which is superior to bare zinc anode. When paired with V2O5 cathode, the full cell also shows excellent cyclic performance. Such a low-cost bifunctional additive would offer a strategy for stabilizing Zn plating/stripping behaviors and suppressing side reactions in mild aqueous electrolyte.
摘要：
A low-profile coding metasurface based on beam diffusion and absorption is proposed, which can be applied for broadband Radar Cross section (RCS) reduction. Through inserting resistors into the polarization conversion element, the proposed unit cell can convert a portion of the electromagnetic wave to ohmic loss as well as retain polarization conversion. Subsequently, the power loss and surface current were used to explain the mechanism of absorption and polarization conversion, and the arrangement of the elements was optimized using a simulated annealing algorithm. Furthermore, both the simulated and measured results have shown that the RCS reduction is greater than 10 dB at 6.7-19.3 GHz (the relative bandwidth is 96.9%), and the metasurface still maintains great characteristics at 45 degrees incidence. Thanks to the proposed metasurface offer advantages such as fewer resistors, a wider bandwidth for RCS reduction, an ultra-thin profile (0.066 lambda L, where lambda L represents the longest wavelength), a stable incident angle, and a more uniform scattering of energy, it can be used in electromagnetic stealth for large targets.
摘要：
This paper proposes a bifunctional linear-to linear polarization converter with a sandwich structure that enables transmissive and reflective polarization conversions in different operating bands, simultaneously. The unit cell of the converter metasurface comprises an S-shaped wire, a dielectric slab, and an S-shaped slot, where the S-shaped wire and slot have complementary structures and a 30 degrees difference in orientation. When an x-polarized electromagnetic wave is incident on the proposed metasurface, most of the transmitted wave is y-polarized in the frequency range of 7.07 GHz to 7.46 GHz, while most of the reflected wave is y-polarized in the frequency range of 16.59 GHz to 16.91 GHz. The physical mechanism underlying these two types of polarization conversions was analyzed based on the surface current, and electric field distributions. Notably, the transmissive polarization conversion was primarily attributed to magnetic resonance, while its reflective counterpart was ascribed to electric resonance. In addition, the Jones vector and Stokes parameters were analyzed thereby elucidating the polarization characteristics of the proposed metasurface. Furthermore, simulation data demonstrated excellent agreement with the measured results of polarization conversion. The designed metasurface will promote subsequent research on bifunctional polarization converters.
作者机构：
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing , China;Frontier Science Center for Quantum Information, Beijing , China;e-mail: ycliu@tsinghua.edu.cn;Department of Physics, Huazhong Normal University, Wuhan , China;e-mail: gaox@mail.ccnu.edu.cn
关键词：
光学期刊,光学期刊联盟,光学论文,光电资讯,光电社区,光学人物,光学专家,光学实验室,光学文献,编辑出版,光学权威,光学前沿,光学会议,微信智能应答服务,光学资源库,DOI代理注册,高功率激光,High Power Laser Science and Engineer,光子学研究,Photonics Research,中国光学快报,COL,Chinese Optics Letters,光学学报,中国激光,激光与光电子学进展
摘要：
Subnatural-linewidth single photons are of vital importance in quantum optics and quantum information science. According to previous research, it appears difficult to utilize resonance fluorescence to generate single photons with subnatural linewidth. Here we propose a universally applicable approach to generate fluorescent single photons with subnatural linewidth, which can be implemented based on Λ-shape and similar energy structures. Further, the general condition to obtain fluorescent single photons with subnatural linewidth is revealed. The single-photon linewidth can be easily manipulated over a broad range by external fields, which can be several orders of magnitude smaller than the natural linewidth. Our study can be easily implemented in various physical platforms with current experimental techniques and will significantly facilitate the research on the quantum nature of resonance fluorescence and the technologies in quantum information science.
作者机构：
[Chang, Wen-Bin] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Key Lab Quark & Lepton Phys MOS, Wuhan, Peoples R China.
通讯机构：
[Chang, WB ] C;Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
摘要：
In this study, we utilize the complexity-action duality to study the evolution of complexity in a holographic QCD model at finite temperature and chemical potential. By inserting a fundamental string as a probe, we investigated the properties of complexity growth in this Einstein-Maxwell-scalar gravity system, which is affected by the string velocity, chemical potential, and temperature. Our results show that the complexity growth is maximized when the probe string is stationary, and it decreases as the velocity of the string increases. When the string approaches relativistic velocities, the complexity growth always increases monotonically with respect to the chemical potential. Furthermore, we find that the complexity growth can be used to identify phase transitions and crossovers in the model.
作者：
Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...
期刊：
EUROPEAN PHYSICAL JOURNAL C,2024年84(2) ISSN：1434-6044
通讯作者：
Aaij, R
作者机构：
[Ketel, T.; Tuning, N.; Usachov, A.; de Boer, J.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Massafferri, A.; Cruz Torres, M.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Gomes, A.; Torres Machado, D.; dos Reis, A. C.; Santoro, L.] CBPF, Rio De Janeiro, Brazil.;[Lopes, J. H.; Polycarpo, E.; Souza De Paula, B.; Souza De Almeida, F. L.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Otalora Goicochea, J. M.; De Paula, L.; Nasteva, I.; Amato, S.; Meyer Garcia, L.] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil.;[Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Hu, X.; Song, Y.; Tan, Y.; Gong, G.; Lian, Z.; Kang, Y.; Qi, H. R.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Feng, M.; Liu, S.] IHEP, Beijing, Peoples R China.
摘要：
A model-independent study of CP violation in B-0 -> DK (*0) decays is presented using data corresponding to an integrated luminosity of 9 fb(-1) collected by the LHCb experiment at centre-of-mass energies of v s = 7, 8 and 13TeV. The CKM angle. is determined by examining the distributions of signal decays in phase-space bins of the self-conjugate D. K(S)(0)h(+) h(-) decays, where h = p, K. Observables related to CP violation are measured and the angle. is determined to be. = (49+22 -19).. Measurements of the amplitude ratio and strong-phase difference between the favoured and suppressed B-0 decays are also presented.
作者机构：
[Jans, E; van Veghel, M; Hulsbergen, W; Biolchini, A; Koppenburg, P; Galati, M D; Greeven, L M; Merk, M; Lukashenko, V; Heijhoff, K; Pellegrino, A; de Boer, J; Magdalinski, D; Kostiuk, I; Ketel, T; Sanchez Gras, C; Graziani, G; Kotriakhova, S; Aaij, R; Ferreres Sole, S; Snoch, A; Gabriel, E; Tuning, N; Bizzeti, A; Akiba, K; Geertsema, R E] Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands;[Xu, M; Pagare, B; Grazette, L; Abdelmotteleb, A S W; Muhammad, E; Monk, M; Rabadan Trejo, R I; Zhovkovska, V; Ward, J A; Paolucci, L; Davidson, A; Lehuraux, M; Wiederhold, A R; Swystun, F; Henderson, R D L; Latham, T; Beck, A; Gershon, T; Graziani, G; Kotriakhova, S; Ramos Pernas, M; Blake, T; Cicala, M F; Bizzeti, A; Jones, T P; Vesterinen, M; Hunter, R J; Back, J J; Kreps, M; Abudinén, F] Department of Physics, University of Warwick, Coventry, United Kingdom;[Mathad, A; Bezshyiko, Ia; Owen, P; Serra, N; Buonaura, A; Andersson, M; Bellee, V; Steinkamp, O; Abellan Beteta, C; Andreola, P; Müller, K; Esen, S; Ferrillo, M; Denysenko, V; Graziani, G; Kotriakhova, S; Lancierini, D; Craik, D C; De Simone, D; Eschle, J; Bernet, R; Bizzeti, A; Terentev, A; Betancourt, C] Physik-Institut, Universität Zürich, Zürich, Switzerland;[Hennessy, K; Ackernley, T; Chadwick, A J; Harrison, T; Bowcock, T J V; Hutchcroft, D; Brown, J; Naik, P; Chavez Barajas, C A; Howarth, N; Vilella Figueras, E; Rinnert, K; Marshall, P J; Shears, T; Graziani, G; Kotriakhova, S; Halewood-Leagas, T; Hammerich, J; Casse, G; Bizzeti, A; Scherl, S; Rodrigues, E] Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom;[Prouve, C; López Soliño, S; Rodriguez Rodriguez, E; Gallas Torreira, A; Vazquez Regueiro, P; Lomba Castro, J; Rodriguez Fernandez, E; Baladron Rodriguez, P; Fernandez Gomez, M; Vázquez Sierra, C; Corredoira, I; Romero Lamas, M; Chobanova, V; Adeva, B; Brossa Gonzalo, A; Cid Vidal, X; Pereiro Castro, A; Cambon Bouzas, J; Santamarina Rios, C; Plo Casasus, M; Dalseno, J; Novoa Fernandez, J; Graziani, G; Kotriakhova, S; Brea Rodriguez, A; Sellam, S; Carcedo Salgado, L; Romero Vidal, A; Van Hulse, C B; Belin, S; Garcia Plana, B; Eirea Orro, C; Bizzeti, A; Martinez Santos, D; Saborido Silva, J J; Ruiz Fernandez, R A; Landesa Gomez, C; Morcillo Gomez, A] Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
摘要：
The fraction of χ_{c1} and χ_{c2} decays in the prompt J/ψ yield, F_{χ_{c}→J/ψ}=σ_{χ_{c}→J/ψ}/σ_{J/ψ}, is measured by the LHCb detector in pPb collisions at sqrt[s_{NN}]=8.16 TeV. The study covers the forward (1.5<y^{*}<4.0) and backward (-5.0<y^{*}<-2.5) rapidity regions, where y^{*} is the J/ψ rapidity in the nucleon-nucleon center-of-mass system. Forward and backward rapidity samples correspond to integrated luminosities of 13.6±0.3 and 20.8±0.5 nb^{-1}, respectively. The result is presented as a function of the J/ψ transverse momentum p_{T,J/ψ} in the range 1<p_{T,J/ψ}<20 GeV/c. The F_{χ_{c}→J/ψ} fraction at forward rapidity is compatible with the LHCb measurement performed in pp collisions at sqrt[s]=7 TeV, whereas the result at backward rapidity is 2.4σ larger than in the forward region for 1<p_{T,J/ψ}<3 GeV/c. The increase of F_{χ_{c}→J/ψ} at low p_{T,J/ψ} at backward rapidity is compatible with the suppression of the ψ(2S) contribution to the prompt J/ψ yield. The lack of in-medium dissociation of χ_{c} states observed in this study sets an upper limit of 180MeV on the free energy available in these pPb collisions to dissociate or inhibit charmonium state formation.
作者机构：
[Wang, Fei; Wang, F; Kong, Deyi] Hubei Univ Technol, Sch Sci, Wuhan 430068, Peoples R China.;[Xu, Jun] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.
通讯机构：
[Wang, F ] H;Hubei Univ Technol, Sch Sci, Wuhan 430068, Peoples R China.
摘要：
We propose a scheme to generate nonreciprocal entanglement between an yttrium iron garnet (YIG) sphere and two nitrogen -vacancy -center ensembles by magnon Kerr effects in a transmission -line resonator. By driving the YIG sphere appropriately, strong Kerr nonlinearities emerge and then induce magnon parametric amplification and magnon frequency shift, resulting in the appearance of optimal entanglements. Depending on the direction of the bias magnetic field, macroscopic nonreciprocal entanglement is realized in this all -solid-state quantum system, which may find potential applications in chiral quantum information processing.
摘要：
The main goal of this paper is to investigate the predefined-time sliding mode control and synchronization of uncertain hyperchaotic systems and its application in secure communication. Firstly, a novel predefined-time sliding surface is designed. Then a predefined-time sliding mode controller is proposed for uncertain hyperchaotic systems, which can guarantee synchronization of the master-slave system within a predefined time in the presence of parameter uncertain and external disturbance. Specially, the settling time, as a part of control parameters, can be predefined as needed independent of initial conditions. Furthermore, the validity of the proposed approach is proved by Lyapunov stability theory. Finally, comparative tests and image encryption application are given to show advantages of the proposed method.
作者：
Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...
期刊：
EUROPEAN PHYSICAL JOURNAL C,2024年84(3) ISSN：1434-6044
通讯作者：
Aaij, R
作者机构：
[Ketel, T.; Tuning, N.; Usachov, A.; de Boer, J.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Magdalinski, D.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Massafferri, A.; Cruz Torres, M.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Gomes, A.; Torres Machado, D.; dos Reis, A. C.; Santoro, L.] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.;[Lopes, J. H.; Polycarpo, E.; Souza De Paula, B.; Souza De Almeida, F. L.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Otalora Goicochea, J. M.; Gomes, A.; De Paula, L.; Nasteva, I.; Amato, S.; Meyer Garcia, L.] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil.;[Zheng, X. Z.; Ma, G. M.; Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Zhang, Y. Z.; Hu, X.; Song, Y.; Tan, Y.; Gong, G.; Lian, Z.; Kang, Y.; Qi, H. R.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Feng, M.; Liu, S.; Xiang, Z.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
摘要：
Zincophilic property and high electrical conductivity are both very important parameters to design novel Zn anode for aqueous Zn-ion batteries (AZIBs). However, single material is difficult to exhibit zincophilic property and high electrical conductivity at the same time. Herein, originating from theoretical calculation, a zincophilic particle regulation strategy is proposed to address these limitations and carbon coated Na3V2(PO4)3 is taken as an example to be a protective layer on zinc metal (NVPC@Zn). Na3V2(PO4)3 (NVP) is a common cathode material for Zn-ion batteries, which is zincophilic. Carbon materials not only offer an electron pathway to help Zn deposition onto NVPC surface, but also enhance the zinc nucleophilicity of Na3V2(PO4)3. Hence, this hybrid coating layer can tune zinc deposition and resist side reactions such as hydrogen generation and Zn metal corrosion. Experimentally, a symmetrical battery with NVPC@Zn electrode displays highly reversible plating/stripping behavior with a long cycle lifespan over 1800 h at 2 mA cm-2, much better than carbon and Na3V2(PO4)3 solely modified Zn electrodes. When the Na3V2(PO4)3 is replaced with zincophobic Al2O3 or zincophilic V2O3, the stability of the modified zinc anodes is also prolonged. This strategy expands the option of zincophilic materials and provides a general and effective way to stabilize the Zn electrode. (c) 2023 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
摘要：
Non-profit sports organizations increasingly participate in government service procurement, seeking vital resources. This study conducted interviews with staff members of sports non-profit organizations in the central provinces of China to understand the impact of participating in government service procurement on non-profit sports organizations. The data was analyzed using NVivo12 software, in conjunction with Resource Dependency Theory (RDT) to propose three subject categories relevant to the subjects of this study, namely (a) resources obtained by the organisation, (b) attitudes of the organisation towards the government and (c) specific behaviours taken by the organisation. The -'government-public duality' of sports non-profit organisations in China makes the government purchase of services, not a fully marketable option. Organizations exhibit proactive behaviors beyond contractual obligations to nurture relationships. This study emphasizes the need to prevent the alienation of non-profit sports organizations in government service procurement, underscoring the importance of fostering and enhancing collaboration in the sports field.
摘要：
In radio frequency (RF) and microwave design optimization, electromagnetic (EM) simulation is crucial yet time-consuming. Solving extensive system equations is computationally expensive for finite-element method (FEM)-based EM simulation. In addition, during optimization, changes to the EM structure are often incremental, leading to inefficiencies in generating and solving new FEM system equations. To address this situation, this article proposes a novel design space decomposition (DSD) technique to rapidly calculate the EM response ( $S$ -parameter) of EM waveguide structures featuring newly optimized topologies. The proposed DSD technique is to segment the variable in the whole design space into several small variables in subspaces. Specifically, the FEM system matrix is decomposed into a constant part and a variable part, where the variable part can be further decomposed into a diagonal block matrix. Subsequently, a novel algorithm is developed to expedite the calculation of the EM response when modifications are applied to the diagonal block matrix within the variable part. With the proposed algorithm, the size of the small matrix remains independent of the number of subspaces, maintaining its smallest size consistently. This streamlined approach facilitates rapid calculations. The proposed technique negates the need to compute the entire, extensive system matrix, thereby greatly reducing the computational burden. Consequently, the proposed technique expedites the overall EM topology optimization. The efficiency of the proposed method is demonstrated through two microwave examples.
作者机构：
[Ketel, T.; Mulder, M.; Tuning, N.; Perez, D. H. Campora; Usachov, A.; de Boer, J.; de Vries, J. A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Akiba, K.; Aaij, R.; Aaij, R; Snoch, A.; De Bruyn, K.; Biolchini, A.; Martinez, M. Lucio; Jans, E.; Vos, K.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; Onderwater, C. J. G.; Bolognani, C. S.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Pawley, C. J.; Soares, M. Senghi; Klaver, S.; Gras, C. Sanchez; Nicotra, D.; Raven, G.; Sole, S. Ferreres; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Da Graca, U. De Freitas Carneiro; Massafferri, A.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Torres, M. Cruz; Machado, D. Torres; Gomes, A.; dos Reis, A. C.; Santoro, L.; Leite, J. Baptista de Souza] CBPF, Rio De Janeiro, Brazil.;[De Paula, B. Souza; Lopes, J. H.; Goicochea, J. M. Otalora; Polycarpo, E.; Gandelman, M.; Rangel, M. S.; Hicheur, A.; Barbosa, I. R.; Gomes, A.; Garcia, L. Meyer; Rodrigues, F. Ferreira; Goebel, C.; De Paula, L.; Nasteva, I.; Amato, S.; De Almeida, F. L. Souza] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.;[Cai, H.; Bian, L.; Liu, G.; Xian, S.; Wang, Z.; Qu, S.; Qin, N.; Li, T.; Ren, Z.; Xu, L.; Tou, D. Y.; Huang, X.; Li, H.; Wang, J.; Li, A.; Hu, X.; Hu, J.; Song, Y.; Tan, Y.; Gong, G.; Wang, X.; Bursche, A.; Lian, Z.; Kang, Y.; Fang, B.; Qi, H. R.; Zhu, X.; Sun, L.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.;[Lu, Y.; Li, Y.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Feo, M.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.; Xiang, Z.] IHEP, Beijing, Peoples R China.
摘要：
The first observation of the singly Cabibbo-suppressed 0c -> -K thorn and 0c -> -z thorn decays is reported, using proton -proton collision data at a center -of -mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb-1, collected with the LHCb detector between 2016 and 2018. The branching fraction ratios are measured to be Bo0c ->-K thorn thorn Bo0c ->-z thorn thorn 1/4 1/26.08 ⠂ 0.51ostat thorn ⠂ 0.40osyst thorn ⠃%; Bo0c ->-z thorn thorn Bo0c ->-z thorn thorn 1/4 1/215.81 ⠂ 0.87ostat thorn ⠂ 0.44osyst thorn ⠂ 0.16oext thorn ⠃%. In addition, using the 0c -> -z thorn decay channel, the 0c baryon mass is measured to be Mo0c thorn 1/4 2695.28 ⠂ 0.07ostat thorn ⠂ 0.27osyst thorn ⠂ 0.30oext thorn MeV; improving the precision of the previous world average by a factor of 4.
作者：
Chun Huang*;Geert Raaijmakers;Anna L Watts;Laura Tolos;Constança Providência
期刊：
Monthly Notices of the Royal Astronomical Society,2024年529(4):4650-4665 ISSN：0035-8711
通讯作者：
Chun Huang
作者机构：
[Constança Providência] CFisUC, Department of Physics, University of Coimbra , P-3004-516 Coimbra , Portugal;[Geert Raaijmakers] GRAPPA, University of Amsterdam , Science Park 904, 1098 XH Amsterdam , the Netherlands;[Anna L Watts] Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1090 GE Amsterdam , the Netherlands;Institute of Space Sciences (ICE , CSIC), Campus UAB, Carrer de Can Magrans E-08193, Barcelona , Spain;Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034, Barcelona , Spain
通讯机构：
[Chun Huang] P;Physics Department, Central China Normal University , Luoyu Road, 430030 Wuhan , China<&wdkj&>Anton Pannekoek Institute for Astronomy, University of Amsterdam , Science Park 904, 1090 GE Amsterdam , the Netherlands<&wdkj&>Physics Department, Washington University , One Brookings Drive, St. Louis, MO 63130 , USA
关键词：
dense matter;equation of state;stars: neutron;X-rays: general
摘要：
Measurements of neutron star mass and radius or tidal deformability deliver unique insight into the equation of state (EOS) of cold dense matter. EOS inference is very often done using generalized parametric or non-parametric models, which deliver no information on composition. In this paper, we consider a microscopic nuclear EOS model based on a field theoretical approach. We show that current measurements from NICER and gravitational wave observations constrain primarily the symmetric nuclear matter EOS. We then explore what could be delivered by measurements of mass and radius at the level anticipated for future large-area X-ray timing telescopes. These should be able to place very strong limits on the symmetric nuclear matter EOS, in addition to constraining the nuclear symmetry energy that determines the proton fraction inside the neutron star.
作者机构：
[Yu, Xue-Feng; He, Xingchen; Yu, XF; Liu, Yanliang; Liu, Wenjun; Li, Dong; Shi, Tongyu; Wang, Jiahong; Huang, Hao] Chinese Acad Sci, Shenzhen Inst Adv Technol, Mat Interfaces Ctr, Shenzhen, Guangdong, Peoples R China.;[Sun, XM; Sun, Xiangming; Gao, Chaosong; Wu, Meng] Cent China Normal Univ, Key Lab Quark & Lepton Phys, Wuhan, Hubei, Peoples R China.;[Zhang, Xin; Zhu, Jiongtao; Ge, Yongshuai; Liang, Dong] Chinese Acad Sci, Shenzhen Inst Adv Technol, Res Ctr Med Artificial Intelligence, Shenzhen, Guangdong, Peoples R China.;[Zheng, Hairong; Sheng, Zonghai; Ge, Yongshuai; Liang, Dong; Zheng, HR] Chinese Acad Sci, Shenzhen Inst Adv Technol, Paul C Lauterbur Res Ctr Biomed Imaging, Shenzhen, Guangdong, Peoples R China.;[Zheng, Hairong; Yu, Xue-Feng; Sheng, Zonghai; Ge, Yongshuai; Yu, XF; Liang, Dong; Zheng, HR] Chinese Acad Sci, Key Lab Biomed Imaging Sci & Syst, Shenzhen, Guangdong, Peoples R China.
通讯机构：
[Sun, XM ; Yu, XF; Ge, YS ; Zheng, HR; Yu, XF ] C;Chinese Acad Sci, Shenzhen Inst Adv Technol, Mat Interfaces Ctr, Shenzhen, Guangdong, Peoples R China.;Cent China Normal Univ, Key Lab Quark & Lepton Phys, Wuhan, Hubei, Peoples R China.;Chinese Acad Sci, Shenzhen Inst Adv Technol, Res Ctr Med Artificial Intelligence, Shenzhen, Guangdong, Peoples R China.;Chinese Acad Sci, Shenzhen Inst Adv Technol, Paul C Lauterbur Res Ctr Biomed Imaging, Shenzhen, Guangdong, Peoples R China.
摘要：
High performance X-ray detector with ultra-high spatial and temporal resolution are crucial for biomedical imaging. This study reports a dynamic direct-conversion CMOS X-ray detector assembled with screen-printed CsPbBr3, whose mobility-lifetime product is 5.2 x 10-4 cm2 V-1 and X-ray sensitivity is 1.6 x 104 mu C Gyair-1 cm-2. Samples larger than 5 cmx\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\times$$\end{document}10 cm can be rapidly imaged by scanning this detector at a speed of 300 frames per second along the vertical and horizontal directions. In comparison to traditional indirect-conversion CMOS X-ray detector, this perovskite CMOS detector offers high spatial resolution (5.0 lp mm-1) X-ray radiographic imaging capability at low radiation dose (260 nGy). Moreover, 3D tomographic images of a biological specimen are also successfully reconstructed. These results highlight the perovskite CMOS detector's potential in high-resolution, large-area, low-dose dynamic biomedical X-ray and CT imaging, as well as in non-destructive X-ray testing and security scanning. Biomedical X-ray imaging requires high spatial and temporal resolution of the detectors. Liu et al. report a screen-printed perovskite direct-conversion X-ray CMOS imager with a spatial resolution of 5 lp mm-1 and a speed of 300 fps for low-dose 2D radiography and 3D computed tomography imaging.
