作者机构：
[Liu, Shaolei; Tang, Fanggui; Zhang, Wenhai] Hengyang Normal Univ, Coll Educ Sci, Hengyang 421001, Peoples R China.;[Zhang, Wenhai] Hengyang Normal Univ, Big Data Ctr Neurosci & AI, Hengyang 421001, Peoples R China.;[Zhang, Wenhai] East China Normal Univ, Sch Psychol & Cognit Sci, Shanghai Key Lab Mental Hlth & Psychol Crisis Inte, Shanghai 200062, Peoples R China.;[Dou, Haoran] Sichuan Normal Univ, Inst Brain & Psychol Sci, Chengdu 610068, Peoples R China.
通讯机构：
[Fanggui Tang] C;College of Education Science, Hengyang Normal University, Hengyang 421001, China
关键词：
Adolescents;Autistic traits;Empathy
摘要：
Based on the mind-blindness hypothesis, a large number of studies have shown that individuals with autism-spectrum disorder (ASD) and autistic traits have empathy deficits. However, the recent double empathy theory contradicts the mind-blindness hypothesis and suggests that individuals with ASD and autistic traits do not necessarily lack empathy. Thus, the presence of empathy deficits in individuals with ASD and autistic traits is still controversial. We recruited 56 adolescents (28 high autistic traits, 28 low autistic traits, 14-17years old) in this study to explore the relationship between empathy and autistic traits. The study participants were required to undertake the pain empathy task, during which the electroencephalograph (EEG) activities were recorded. Our results show that empathy was negatively associated with autistic traits at the questionnaire, behavioral, and EEG levels. Our results also suggested that empathy deficits in adolescents with autistic traits may be manifested mainly in the late stages of cognitive control processing.
作者机构：
[Wang, Qianqian; Feng, Zhuoer; Ang, Lay Kee; Tho, Che Chen; Su, Tong; Yang, Shengyuan A.; Wu, Qingyun; Ang, Yee Sin] Singapore Univ Technol & Design, Sci Math & Technol Cluster, Singapore 487372, Singapore.;[Wang, Guangzhao; Tang, Qin; Yu, Chenjiang] Yangtze Normal Univ, Sch Elect Informat Engn, Key Lab Extraordinary Bond Engn & Adv Mat Technol, Chongqing 408100, Peoples R China.;[Nguyen, C. V.] Le Quy Don Tech Univ, Dept Mat Sci & Engn, Hanoi 100000, Vietnam.;[Ong, Wee-Liat] Zhejiang Univ, ZJU UIUC Inst, Coll Energy Engn, Haining 314400, Zhejiang, Peoples R China.;[Ong, Wee-Liat] Zhejiang Univ, State Key Lab Clean Energy Utilizat, Hangzhou 310027, Zhejiang, Peoples R China.
通讯机构：
[Guangzhao Wang; Yee Sin Ang; Guangzhao Wang Guangzhao Wang Guangzhao Wang; Yee Sin Ang Yee Sin Ang Yee Sin Ang] S;Science Mathematics and Technology Cluster, Singapore University of Technology and Design, Singapore, 487372 Singapore<&wdkj&>School of Electronic Information Engineering, Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, Yangtze Normal University, Chongqing, 408100 China
关键词：
2D materials;density functional theory simulations;electrical contacts;excitonic solar cells;van der Waals heterostructures
摘要：
Although the d-band center theory can well describe the interaction between gas molecules and transition metal surfaces, the detailed reaction process and specific adsorption conditions are unclear. Hence, in this work, we systematically studied the adsorption mechanism, adsorption conditions, and recovery time of NO and NO2 molecules on different transition metals (Cu, Ag, Au, Ni, Pd, Pt, Rh, Ru, Tc, Mo, Nb, and Zr) surfaces by first-principles. The results indicated that the charge transfers from the dz2, dxz, and dyz orbitals of substrate atoms to the HOMOs/LUMOs of NO and NO2. Moreover, we demonstrate that the interaction orbitals between the NO/NO2 and the metal atoms excellently correspond with the match of energy level and parity, and the maximum overlap of the orbital wave function. Interestingly, the excellent linear scaling between charge transfer and the d-band center, work function, and matrix element (V-ad(2)) of metals has been confirmed. Specifically, the different recovery times of these systems at different temperatures were explored. Our results can provide a feasible way for exploring gas-sensitive materials in the experiments.
作者机构：
[Chen, Shaolin; Chen, SL] Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Chen, SL ] H;Hengyang Normal Univ, Coll Math & Stat, Hengyang 421008, Hunan, Peoples R China.
关键词：
Heinz type inequality;Lipschitz continuous;Polyharmonic mapping;Quasiconformal mapping
摘要：
Suppose that f satisfies the following: (1) the polyharmonic equation triangle(m) f = triangle(triangle(m-1) f ) = phi(m) (phi(m) is an element of C((B-n) over bar, R-n)), (2) the boundary conditions triangle(0) f = phi(0), triangle(1) f = phi 1, ..., triangle(m-1) f = phi(m-1 )on Sn-1 (phi (j) is an element of C(Sn-1, R-n) for j is an element of {0, 1, ... , m - 1} and Sn-1 denotes the boundary of the unit ball B-n), and (3) f (0) = 0, where n >= 3 and m >= 1 are integers. Initially, we prove a Schwarz type lemma and use it to obtain a Heinz type inequality of mappings satisfying the polyharmonic equation with the above Dirichlet boundary value conditions. Furthermore, we establish a Bloch type theorem of mappings satisfying the above polyharmonic equation, which gives an answer to an open problem in Chen and Ponnusamy, (2019). Additionally, we show that if f is a K-quasiconformal self-mapping of Bn satisfying the above polyharmonic equation, then f is Lipschitz continuous, and the Lipschitz constant is asymptotically sharp as K -> 1(+) and parallel to phi(j) parallel to infinity -> 0(+) for j is an element of {1, ... , m}.(c) 2023 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
摘要：
High-performance photodetectors hold promising potential in optical communication and imaging systems. However, conventional counterparts are suffering narrow detection range, high power consumption, and poor polarization sensitivity. Characteristics originating from switchable polarization in ferroelectrics can be used to optimize the photo-to-electric procedure and improve the photodetection performance. In this regard, we constructed a configuration by integrating 2-dimensional molybdenum disulfide (MoS(2)) with ferroelectric lithium niobate (LiNbO(3)), resulting in the MoS(2)/LiNbO(3) heterostructured photodetector. Benefiting from the pyroelectric effect of LiNbO(3), the limitation of bandgap on the detection range can be broken, thus broadening the response band of the detector to 365 to 1,064 nm, as well as enabling the self-powered characteristic. Meanwhile, high carrier mobility and decent light absorbance of MoS(2) introduce robust light-matter interactions with the underlying LiNbO(3), leading to ultrafast rise/fall times of ≈150 μs/250 μs and switching ratios of up to ≈190. Moreover, the highest responsivity, specific detectivity, and external quantum efficiency achieved were 17.3 A·W(-1), 4.3 × 10(11) Jones, and 4,645.78%, respectively. Furthermore, because of the anisotropy of the spontaneous-polarized LiNbO(3) substrate, the photocurrent of the device achieved a dichroic ratio of 7.42, comparing favorably to most MoS(2)-based photodetectors. This work demonstrates the integration potential between ferroelectric LiNbO(3) and 2-dimensional materials for high-performance photodetection.
通讯机构：
[Zhong, C ] H;Hengyang Normal Univ, Coll Comp Sci & Technol, Hengyang 421002, Hunan, Peoples R China.;Hunan Prov Key Lab Intelligent Informat Proc & App, Hengyang 421002, Hunan, Peoples R China.
关键词：
Image encryption;Chaotic map;Variable key space;Key association
摘要：
The security of images is of great importance given the current development of Internet technology. The existing encryption algorithms have some defects, such as the key space is not large enough and the encryption speed is slow. A fast image encryption algorithm with variable key space is proposed. The algorithm key space is dynamically changeable and the variable key space is associated with the initial condition of Hénon map, making this cryptosystem extremely sensitive to the key. The overall algorithm uses a permutation-diffusion-permutation-diffusion encryption structure. The first permutation process is implemented by cross-sampling and the first diffusion is implemented by modal operation. The second permutation is implemented using the chaotic sequence approach and the second diffusion is implemented using the XOR operation. The designed permutation and diffusion operations are executed with high efficiency, and the two different diffusion operations make the encryption process with nonlinear mapping capability, making the algorithm effective against existing typical differential attack schemes. Experiments show that the algorithm has a dynamically adjustable key space, high efficiency of algorithm encryption, good robustness, and effective resistance to statistical attack analysis and differential attack analysis.
关键词：
western North Pacific summer monsoon;tropical central-western Pacific;SST;interdecadal change
摘要：
This study reveals the strengthened interdecadal relationship between the western North Pacific summer monsoon (WNPSM) and tropical central-western Pacific sea surface temperature anomaly (SSTA) in summer after the early 1990s. In the first period (1979-91, P1), the WNPSM-related precipitation anomaly and horizontal wind anomaly present themselves as an analogous Pacific-Japan (PJ)-like pattern, generally considered to be related to the Nino-3 index in the preceding winter. During the subsequent period (1994-2019, P2), the WNPSM-related precipitation anomaly presents a zonal dipole pattern, correlated significantly with the concurrent SSTA in the Nino-4 and tropical western Pacific regions. The negative (positive) SSTA in the tropical western Pacific and positive (negative) SSTA in the Nino-4 region, could work together to influence the WNPSM, noting that the two types of anomalous SSTA configurations enhance (weaken) the WNPSM by the positive (negative) phase PJ-like wave and Gill response, respectively, with an anomalous cyclone (anticyclone) located in the WNPSM, which shows obvious symmetry about the anomalous circulation. Specifically, the SSTA in Nino-4 impacts the WNPSM by an atmospheric Gill response, with a stronger (weaker) WNPSM along with a positive (negative) SSTA in the Nino-4 region. Furthermore, the SSTA in the tropical western Pacific exerts an influence on the WNPSM by a PJ-like wave, with a stronger (weaker) WNPSM along with a negative (positive) SSTA in the tropical western Pacific. In general, SSTAs in the tropical western Pacific and Nino-4 areas could work together to exert influence on the WNPSM, with the effect most likely to occur in the El Nino (La Nina) developing year in P2. However, the SSTAs in the tropical western Pacific worked alone to exert an influence on the WNPSM mainly in 2013, 2014, 2016, and 2017, and the SSTAs in the Nino-4 region worked alone to exert an influence on the WNPSM mainly in Central Pacific (CP) La Nina developing years. The sensitivity experiments also can reproduce the PJ-like wave/Gill response associated with SSTA in the tropical western Pacific/Nino-4 regions. Therefore, the respective and synergistic impacts from the Nino-4 region and the tropical western Pacific on the WNPSM have been revealed, which helps us to acquire a better understanding of the interdecadal variations of the WNPSM and its associated climate influences.
摘要：
Ensuring the quality and yield of rice depends heavily on the accurate identification of early-stage rice diseases. Existing models face significant challenges in balancing lightweight requirements and precise classification of rice disease types due to the noisy background and scattered distribution of disease symptoms in real-world environments. To address the above issues, this study proposes DGLNet, a novel lightweight and highly accurate network for rice disease identification. DGLNet includes two low-complexity modules, the global attention module (GAM) and the dynamic representation module (DRM). The GAM is designed to capture key information in complex noisy scenes, thus improving the generalization ability of the model. Meanwhile, the self-developed four-dimensional flexible convolution (4D-FConv) in the DRM can dynamically generate adaptive convolutional kernel parameters from four dimensions. This allows DRM to maintain diversity among different sample inputs to enhance the model's ability to fit complex functions. As a result, DRM enhances feature representation without the need for additional network layers and channels. The proposed method achieves 99.82% and 99.71% recognition accuracy on two real plant disease datasets, outperforming current popular methods. The experimental results demonstrate that the proposed method is not only computationally lightweight, but also capable of accurately identifying rice diseases in real-life scenarios. Furthermore, this study provides robust technical support for disease identification and control and offers guidance for the implementation of agricultural intelligence and precision farming.
通讯机构：
[Xiaohui Ling] L;Laboratory for Spin-Orbit Photonics, College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang 421002, People's Republic of China
关键词：
angular momentum;photonic orbital Hall effect;vortex phase;mode decomposition
摘要：
The photonic orbital Hall effect (POHE) refers to the vortex-dependent beam shifts, which is generally believed to result from the conversion of intrinsic orbital angular momentum (IOAM) to extrinsic orbital angular momentum (EOAM). However, the physical mechanism of the POHE, such as how the IOAM is converted to the EOAM, remains further elucidation. In this paper, we re-examine the POHE of a vortex beam with additional IOAM illuminating at an optically thin slab by means of vortex mode decomposition. By considering the competition and coupling between the radial and azimuthal vortex harmonics of the abnormal mode in the transmitted beam, it is found that the underlying mechanism of the POHE is in fact a spin-to-orbital angular momentum (OAM) conversion process. And the IOAM carried by the incident beam is directly superimposed on the OAM obtained during the conversion. Our findings not only offer an alternative perspective for understanding the POHE, but also exhibit application potential in orbit-orbit and spin-orbit optical components.
