Dual applications of Chebyshev polynomials method: Efficiently finding thousands of central eigenvalues for many-spin systems

Computation of a large group of interior eigenvalues at the middle spectrum is an important problem for quantum many-body systems, where the level statistics provides characteristic signatures of quantum chaos.We propose an exact numerical method, dual applications of Chebyshev polynomials (DACP), to simultaneously find thousands of central eigenva

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Scanning Electron Microscope Study of Antennae and Mouthparts in the Pollen-Beetle Meligethes (Odonthogethes) chinensis (Coleoptera: Nitidulidae: Meligethinae)

Meligethes (Odonthogethes) chinensis is a common Chinese phytophagous species in the family Nitidulidae.Its main larval host plant is Rubus idaeus L.(Rosaceae), and adults feed on pollen and other floral parts.In this study, we used scanning electron microscopy (SEM) to observe and study the fine morphology of sensilla on the antennae Mesh Top and

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Ideal Influence and Intellectual Stimulation: Critical Dimensions in Improving MSME Performance in the Digital Transformation Era

Micro, Small, and Medium Enterprises (MSMEs) are an important pillar of the global and national economy, but they are faced with various major challenges in the era of digital transformation, such as increasingly fierce competition, rapid technological changes, and innovation demands.Effective leadership is a key factor in ensuring the success of M

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