Vibration Reduction and Explosion Control Investigation for an Ultra-Shallow Buried Tunnel under Crossing Buildings Based on HHT Analysis.

With the rapid development of underground space utilization, the excavation of new tunnels with ultra-shallow under crossing buildings using the drilling and blasting method is gradually increasing. The blasting vibration will undoubtedly affect the surrounding buildings. Reducing the impact of blasting vibration on ground buildings has become an important technical challenge faced by tunnel blasting technicians.

Analysis of Structural Health Monitoring Data with Correlated Measurement Error by Bayesian System Identification: Theory and Application.

Measurement error is non-negligible and crucial in SHM data analysis. In many applications of SHM, measurement errors are statistically correlated in space and/or in time for data from sensor networks. Existing works solely consider spatial correlation for measurement error.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 155,754 bp in length and has a base composition of A (30.02%), G (19.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 155,744 bp in length and has a base composition of A (30.02%), G (19.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 155,691 bp in length and has a base composition of A (30.02%), G (19.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 154,527 bp in length and has a base composition of A (29.99%), G (19.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 155,655 bp in length and has a base composition of A (30.03%), G (19.

The complete chloroplast genome sequence of (Myristicaceae).

is a member of Myristicaceae. The chloroplast genome is found to be 155,683 bp in length and has a base composition of A (29.99%), G (19.

Prevalences of and risk factors for biliary stones and gallbladder polyps in a large Chinese population.

Objectives: This study aimed to identify the prevalences of and risk factors associated with the development of gallbladder stones and polyps in a large Chinese population.

Methods: Prevalences of and risk factors for biliary stones and gallbladder polyps were retrospectively investigated among subjects who underwent a general check-up at the Health Screening Centres of Peking Union Medical College Hospital and Beijing Charity Hospital between January 2007 and June 2010.

Results: A total of 60,064 people were enrolled in the study.