Weihai Science and Technology Bureau

Bragg resonance reflection of water waves by submerged triangular bars with asymmetric cross-sections

By using the modified mild-slope equation, this paper conduct theoretical research on Bragg reflection induced by submerged triangular bars with asymmetric cross-sections. First, an analytical solution for the reflection coefficient is developed. Then the reliability of this solu...

Three-Level Fish Iris Image Annotatability Assessment for Pre-Annotation Quality Control Based on Boundary Traceability

Fish iris images provide morphological information for biometric recognition and biological observation, but underwater imaging often introduces blur, reflection, occlusion, low contrast, and boundary ambiguity. Conventional no-reference image quality assessment provides global p...

Fabrication of Mg/Al-Layered Double Hydroxide–Biochar for Reducing Cadmium and Arsenic Uptake in Soil-Covered Morchella sextelata Cultivation

Cadmium and arsenic accumulation during soil-covered cultivation of Morchella sextelata limits its production in contaminated soils. Two Mg/Al-layered double hydroxide–biochar (LB) composites were prepared using grinding-assisted and coprecipitation procedures and denoted as LB1...

Dimensionality-Reduction Regulation of C@M-Zn2SnO4(H+) for High-Capacity and Durable Lithium-Ion Battery Anodes

Zn2SnO4 is a promising anode for lithium-ion batteries owing to its high theoretical capacity, yet its practical utilization is severely limited by sluggish reaction kinetics, large volume expansion, and unstable electrode/electrolyte interfaces. Here, we introduce a dimensionali...

Ultra-Wideband Optically Transparent Absorbing Metasurface Based on Multilayer ITO Films

Traditional microwave-absorbing metasurfaces struggle to integrate optical transparency with ultra-wideband and high-efficiency microwave absorption, severely limiting their deployment in optoelectronics-compatible electromagnetic protection. To address this constraint, we propos...

Screening Plus Training: A Strategy to Counter Germplasm Degeneration in Cultivated Kelp ( Saccharina japonica )

ABSTRACT Based on the introduced founder sporophytes, a set of S. japonica varieties and a few hybrid kelp have been bred and intensively cultivated in China. The cultivation of S. japonica has been running up against the impasse of germplasm degeneration characterized by low gro...

Preparation, microstructure, and performance of ThO 2 -doped tungsten alloy cathodes for high-power lamps

In response to the demand for tungsten (W) cathodes in high-power short-arc lamps, a powder metallurgy-swaging process was employed to fabricate thoriated W alloy rods with a diameter exceeding 30 mm. This approach successfully addressed issues related to the poor sintering perfo...

Nickase-based suppression of self-ligation in long sticky-end adapters for next-generation sequencing library preparation

The correctness and efficiency of the adapter connection are important factors affecting the quality and yield of the libraries in next-generation sequencing (NGS). Lengthening the sticky ends of the adapters and the targets can effectively improve the efficiency of ligation, how...