Inflammatory bowel disease (IBD) is a chronic, relapsing, and remitting disease characterized by chronic inflammation in the gastrointestinal tract. The exact etiology and pathogenesis of IBD remain elusive. Although ELF-1 has been known to be highly expressed in epithelial cells for past twenty years, little is known about its function in epithelial cells and epithelial-related IBD.
View Article and Find Full Text PDFAtmospheric turbulence is an important factor affecting the transmission performance of free-space optical communications (FSOC), especially in the near-surface where the atmospheric turbulence characteristics are complex and variable. In this paper, we study the real-time measurement technique of a near-surface atmospheric turbulence profile of an airship-borne laser communication system based on the principle of light intensity scintillation. Aiming at the influence of an avalanche photon diode detector system noise and environmental factors such as background light and platform vibration on the measurement results, a noise-canceling scintillation index calculation method, combined with a wavelet threshold denoising method, is proposed to improve the accuracy of atmospheric turbulence profile measurements.
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