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248 papers found.
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Actualities and Development of Heavy-Duty CNC Machine Tool Thermal Error Monitoring Technology

Mechanical and Electronic Engineering, Wuhan University of Technology, China. His research interests include cutting force monitoring of CNC machine tool and robot technology. E-mail: Yi Liu, born in 1980, is

Comparison of glyburide and insulin in the management of gestational diabetes: A meta-analysis

, Yue Chen, Wanyu Feng. Funding acquisition: Wanyu Feng. Investigation: Rongjing Song, Ling Chen, Xia Si, Yi Liu. Methodology: Rongjing Song, Ling Chen, Yue Chen, Yi Liu, Yue Liu. Project ... administration: Rongjing Song, David M. Irwin, Wanyu Feng. Resources: Ling Chen, Xia Si. Software: Rongjing Song, Ling Chen, Yue Chen, Yi Liu, Yue Liu. Supervision: Rongjing Song, David M. Irwin. Validation

A promising tool for surgical lipotransfer: a constant pressure and quantity injection device in facial fat grafting

Background The purpose of this study was to preliminarily assess a constant pressure and quantity fat granule injection device for minimal invasive properties in clinic. Methods A retrospective controlled study was carried out, from October 2013 to January 2015, on 76 female healthy patients aged between 26 and 53 years at the General Hospital of Lanzhou Military Command, China. To ...

IOPA: I/O-aware parallelism adaption for parallel programs

With the development of multi-/many-core processors, applications need to be written as parallel programs to improve execution efficiency. For data-intensive applications that use multiple threads to read/write files simultaneously, an I/O sub-system can easily become a bottleneck when too many of these types of threads exist; on the contrary, too few threads will cause ...

Hierarchical and coupling model of factors influencing vessel traffic flow

Understanding the characteristics of vessel traffic flow is crucial in maintaining navigation safety, efficiency, and overall waterway transportation management. Factors influencing vessel traffic flow possess diverse features such as hierarchy, uncertainty, nonlinearity, complexity, and interdependency. To reveal the impact mechanism of the factors influencing vessel traffic flow, ...

Less extrusion debris during the retreatment of curved canals using twisted files with higher rotational speeds: an ex vivo study

Tan 1 Yi Liu 1 0 School of Dentistry, Shandong University , 44, Wenhua West Road, Jinan 250012, Shandong Province , China 1 School of Stomatology, Qingdao University , Qingdao 266021, Shandong Province

Genome-wide assessment of population structure and genetic diversity and development of a core germplasm set for sweet potato based on specific length amplified fragment (SLAF) sequencing

Sweet potato, Ipomoea batatas (L.) Lam., is an important food crop that is cultivated worldwide. However, no genome-wide assessment of the genetic diversity of sweet potato has been reported to date. In the present study, the population structure and genetic diversity of 197 sweet potato accessions most of which were from China were assessed using 62,363 SNPs. A model-based ...

Measuring Road Network Vulnerability with Sensitivity Analysis

This paper focuses on the development of a method for road network vulnerability analysis, from the perspective of capacity degradation, which seeks to identify the critical infrastructures in the road network and the operational performance of the whole traffic system. This research involves defining the traffic utility index and modeling vulnerability of road segment, route, OD ...

Incorporating High-Dimensional Exposure Modelling into Studies of Air Pollution and Health

Performing studies on the risks of environmental hazards on human health requires accurate estimates of exposures that might be experienced by the populations at risk. Often there will be missing data and in many epidemiological studies, the locations and times of exposure measurements and health data do not match. To a large extent this will be due to the health and exposure data ...

F-doped O3-NaNi1/3Fe1/3Mn1/3O2 as high-performance cathode materials for sodium-ion batteries

The F-doped O3-type NaNi1/3Fe1/3Mn1/3O2−x F x (x = 0, 0.005, 0.01, 002 and noted as NFM-F0, NFM-F0.005, NFM-F0.01, NFM-F0.02, respectively, united as NFM-Fs) cathode materials were investigated systematically. The rate performance and capacity retention of the O3-type cathode materials are significantly improved as a function of specific F-doping levels. Optimum performance is ...

The complete mitochondrial genomes of two freshwater snails provide new protein-coding gene rearrangement models and phylogenetic implications

Background Mitochondrial (mt) genome sequences are widely used for species identification and to study the phylogenetic relationships among Gastropoda. However, to date, limited data are available as taxon sampling is narrow. In this study we sequenced the complete mt genomes of the freshwater gastropods Radix swinhoei (Lymnaeidae) and Planorbarius corneus (Planorbidae). Based on ...

A new shear strength model incorporating influence of infill materials for rock joints

Overall mechanical behaviour of jointed rock masses is predominantly controlled by the shear strength of rock joints which contain infill materials. Barton’s empirical model has been shown to be one of the most successful model in predicting joint shear strength (Barton and Choubey in Rock Mech 10:1–54, 1977). However, the Barton model does not express the effect of infill material ...

A HuR/TGF-β1 feedback circuit regulates airway remodeling in airway smooth muscle cells

Background Asthma is a worldwide health burden with an alarming prevalence. For years, asthma-associated airway injury remains elusive. Transforming growth factor β1 (TGF-β1) is a pleiotropic cytokine that has been shown to be involved in the synthesis of the matrix molecules associated with airway remodeling. Human antigen R (HuR), the member of the Hu RNA-binding protein family, ...

Association between college health services and contraceptive use among female students at five colleges in Wuhan, China: a cross-sectional study

Background College students have a high incidence of unplanned pregnancies in China, which has highly raised public attention. As such, numerous reproductive health services are provided to college students. This study examined whether health services in college lead to contraceptive use among female college students in heterosexual relationships. Methods A self-administered ...

Pulse pressure variation shows a direct linear correlation with tidal volume in anesthetized healthy patients

, Grant Recipient: Yi Liu). Availability of data and materials Data will not be shared. The patent application do not allow the raw data to the public. Authors’ contributions All authors have made

Interleukin 1 Polymorphisms Contribute to Intervertebral Disc Degeneration Risk: A Meta-Analysis

Objective We performed a meta-analysis to assess association between interleukin 1 (IL-1) polymorphisms and the risk of Intervertebral Disc Degeneration (IDD). Background A series of studies have investigated the association between common single nucleotide polymorphisms in IL-1 and IDD risk; however, the overall results are inconclusive. Methods Two independent investigators ...

A novel variant on chromosome 6p21.1 is associated with the risk of developing colorectal cancer: a two-stage case-control study in Han Chinese

Background Genes in inflammatory pathways play a pivotal role in the development of colorectal cancer. We conducted a two-stage case-control study and aimed at screening the colorectal cancer-associated genetic variations in inflammatory genes. Methods Twenty-three candidate variants were genotyped in 952 primary colorectal cancer cases and 875 cancer-free controls from eastern ...

Real-time HER2 status detected on circulating tumor cells predicts different outcomes of anti-HER2 therapy in histologically HER2-positive metastatic breast cancer patients

Background This study was initiated to investigate the difference in HER2 status between tumor tissue and circulating tumor cells (CTCs), as well as the predictive value of CTC HER2 status for predicting the outcomes of anti-HER2 therapy in histologically HER2-positive metastatic breast cancer (MBC) patients. Methods HER2 expression on CTCs was detected using a CellSearch system ...