Publications by authors named "Yang Shifei"
Article Synopsis
- A 25-year-old woman presented with a large facial hyperpigmentation that began as a blue-brown patch at one month old and progressively enlarged, covering the entire right side of her face.
- Diagnosis involved dermoscopic and confocal microscopy exams, revealing overlapping conditions of nevus spilus and nevus of Ota, with no signs of cancer.
- Successful treatment was achieved with a Q-switched alexandrite laser, demonstrating the importance of advanced imaging techniques in diagnosing and managing rare facial pigmentation disorders.
Slurry retention in fractures decreases after grouting is completed and the pressure supply is stopped, which affects the grouting sealing effect and prevents or restrains the occurrence of such adverse conditions. Based on the time-varying yield stress of grout, a theoretical analysis model of grouting diffusion decay is established, the decay height variation function and the minimum pressure stabilisation time calculation formula are derived, and the sealing mechanism of a jointed rock mass with multiple joints is studied. Moreover, a 3D visualisation laboratory test device for grouting diffusion decay of a jointed rock mass with layers was developed to analyse the diffusion and decay process of grout with different water-cement (W/C) ratios visually, and the correctness of the theoretical model was verified.
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- Scientists found that special marks on DNA can control how genes are turned on and off.
- They made a new method called Chrom-seq to find RNA that works with these DNA marks in living cells.
- This new method is better, faster, and cheaper than older ways and doesn’t need special antibodies to study RNA linked to DNA marks that might help control gene activity.