検索結果 - Yumin Liu

Taking the Wangfu fault depression in the Songliao Basin as an example, on the basis of seismic interpretation and drilling data analysis, the distribution of the basement faults was clarified, the fault activity periods of the coal-bearing formations were determined, and the fault systems were divi...

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We theoretically present a design for simultaneous all-optical <sc>or</sc> and <sc>xor</sc> logic gates based on single quantum dot (QD)-bimodal cavity system working in low-photon-number regime. The coupling between the QD and two degenerate cavity modes establishes new indi...

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A high-contrast and compact wavelength diplexer is presented for conventional 1550 nm and emerging 2000 nm based on a subwavelength-grating (SWG) coupler. The SWG silicon waveguide thoroughly blocks the light propagation around 1550 nm but fully supports 2000 nm (extinction ratio: 43.11 dB). This gr...

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Janus transition metal dichalcogenide (TMD) monolayers with out‐of‐plane atomic asymmetry have been experimentally observed to scroll into unique 1D nanoscrolls with diverse complex structures, while the underlying mechanism has not been unveiled. In this work, the entire scrolling process of triang...

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We propose and numerically demonstrate a design of bidirectional transverse electric (TE) polarized mode-order converter based on silicon-on-insulator platform. This converter is realized by introducing high refractive index material inlaid in a silicon slab waveguide. Simulated by three-dimensional...

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In order to comprehensively evaluate the difference in fruit quality among 16 different feijoa lines, this study determined the external and internal quality indicators and antioxidant activities of 16 feijoa lines. Variability analysis, correlation analysis and principal component analysis were use...

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We propose and investigate a silicon photonic TE-pass polarizer consisting of alternating layers made out of copper&#x002F;silicon nitride (Cu&#x002F;Si₃N₄). Based on a Si stripe waveguide, the launched dominant fundamental TE mode can normally p...

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In this work, a new design scheme for a high-performance betavoltaic battery utilizing a vertically stacked diamond matched 90Sr source was proposed. The energy converter consisted of multiple self-supporting ultra-thin Al-diamond Schottky diode units in parallel connection and distributed on both s...

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A method of focal-shift resonance with substrate based on two commonly used structures of nano-optical lens is presented with numerical simulations. This resonance exhibits periodicity with the variation of substrate refractive index. Both types of lenses are based on gradual changed nanoslits and a...

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In this letter, we propose ultra-compact TE-polarized even-to-odd mode converter designs by introducing Ge&#x002F;Si patterns into silicon waveguide-integrated functional region. The Ge areas with continuous boundaries are determined by topology optimization that combines finite element method,...

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Excessive nutrient inputs from manure and synthetic fertilizers have caused great challenges for sustainable vegetable production. There is limited information about the nutritional yields and leaching losses of potassium (K), calcium (Ca), and magnesium (Mg) under various organic–inorganic fertiliz...

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