The problem of chip breaking and evacuation is the key point of staggered teeth boring and trepanning association (BTA) drilling.The factors that influence chip breaking with staggered teeth BTA deep hole drilling are analyzed Body by using the chip bending deformation mechanism for chip formation and flow through the rake face and chip breaker.Thi
Transcriptomic and Phytohormone Metabolomics Provide Insight into the Changes in Citrus limon Infected by Citrus yellow vein clearing virus
Background: Citrus yellow vein-clearing virus (CYVCV) is a Mandarivirus that causes great economic losses in lemon production.CYVCV infection is associated with obvious yellow vein-clearing disease symptoms and is directly regulated by plant hormone responses.Methods: To understand how lemon plants respond to CYVCV infection, we performed transcrip
A Super Wideband Dual-Polarized Vivaldi Antenna for 5G mmWave Applications
Millimeter wave (mmWave) is a key band for fifth-generation (5G) mobile communication that features large available bandwidth and high data rates.Antenna elements are recommended to be dual-polarized, compact, wideband, and high gain to be utilized for 5G array antenna systems.In this paper, a miniaturized gain-enhanced Vivaldi antenna element in a
Widespread occurrence of fecal indicator bacteria in oligotrophic tropical streams. Are common culture-based coliform tests appropriate?
Monitoring of stream water quality is a key element of water resource management worldwide, but methods that are commonly used in temperate habitats may not be appropriate in humid tropical systems.We assessed the influence of four land uses on microbial water quality in 21 streams in the Panama Canal Watershed Collections over a one-year period, u