Advanced search    

Search: authors:"Qi Li"

162 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Search for single production of the vector-like top partner at the 14 TeV LHC

The new heavy vector-like top partner (T) is one of typical features of many new physics models beyond the standard model. In this paper we study the discovery potential of the LHC for the vector-like T-quark both in the leptonic \(T\rightarrow bW\) and \(T\rightarrow t_\mathrm{lep}Z_\mathrm{lep}\) (trilepton) channels at \(\sqrt{s}= 14\) TeV in the single production mode. Our ...

A review of beam pumping energy-saving technologies

The beam pumping units applied in oilfield for more than 150 years, because it had the advantages of simple structure, reliable and durable. At present, it is still one of the most important artificial lift methods in the world. Due to the inherent structure of the beam pumping units, the balanced torque curve of gearbox has a bigger fluctuation ratio and negative torque that ...

Phylogeography of bivalve Meretrix petechialis in the Northwestern Pacific indicated by mitochondrial and nuclear DNA data

improved this manuscript. Author Contributions Conceptualization: Lingfeng Kong, Qi Li. Formal analysis: Xiaoxuan Wang, Jun Chen. Funding acquisition: Lingfeng Kong. Investigation: Xiaoxuan Wang, Jun ... Chen. Project administration: Lingfeng Kong. Data curation: Xiaoxuan Wang, Lingfeng Kong, Akihiko Matsukuma, Qi Li. Writing ± original draft: Xiaoxuan Wang, Lingfeng Kong. Writing ± review & editing

Study on three independent parameters of focal mechanism solution

In this paper, the relationships of the plunges and azimuths of T and P axes versus the strikes, dips, and rakes of two seismic nodal planes were derived to provide reference for earthquake researchers. The independence of the plunges and azimuths of T, B, and P axes in focal mechanism solution was discussed, and it was concluded that three parameters, i.e., the azimuths of T, B ...

An Efficient Elastic Net with Regression Coefficients Method for Variable Selection of Spectrum Data

Using the spectrum data for quality prediction always suffers from noise and colinearity, so variable selection method plays an important role to deal with spectrum data. An efficient elastic net with regression coefficients method (Enet-BETA) is proposed to select the significant variables of the spectrum data in this paper. The proposed Enet-BETA method can not only select ...

A farm-level precision land management framework based on integer programming

Farmland management involves several planning and decision making tasks including seed selection and irrigation management. A farm-level precision farmland management model based on mixed integer linear programming is proposed in this study. Optimal decisions are designed for pre-season planning of crops and irrigation water allocation. The model captures the effect of size and ...

Blend sign predicts poor outcome in patients with intracerebral hemorrhage

First Affiliated Hospital of Chongqing Medical University ICH study whose authors may be contacted at: Professor Qi Li, Department of Neurology, The First Affiliated Hospital of Chongqing Medical ... National Natural Science Foundation of China (grant no. 81200899). Recipient: Qi Li. Competing interests: The authors have declared that no competing interests exist. Introduction Intracerebral hemorrhage

Workplace violence against medical staff of Chinese children's hospitals: A cross-sectional study

Background In China, medical staff of children’s hospitals are commonly exposed to violence. However, few studies on medical violence are conducted in the settings of children’s hospitals. The aim of this study is to assess the incidence, magnitude, consequences, and potential risk factors of workplace violence (WPV) against medical staff of children’s hospitals. Methods A ...

Performances of Different Fragment Sizes for Reduced Representation Bisulfite Sequencing in Pigs

Background Reduced representation bisulfite sequencing (RRBS) has been widely used to profile genome-scale DNA methylation in mammalian genomes. However, the applications and technical performances of RRBS with different fragment sizes have not been systematically reported in pigs, which serve as one of the important biomedical models for humans. The aims of this study were to ...

miR-296 inhibits the metastasis and epithelial-mesenchymal transition of colorectal cancer by targeting S100A4

Background Dysregulation of microRNAs (miRNAs) is actively involved in the pathogenesis and tumorigenicity of colorectal cancer (CRC). miR-296 was found to play either oncogenic or tumor suppressive role in human cancers. However, the status of miR-296 and its function in CRC remain unknown. Methods The expression of miR-296 was confirmed by qRT-PCR in CRC tissues and cells, and ...

Diurnal and Seasonal Variations in the Net Ecosystem CO2 Exchange of a Pasture in the Three-River Source Region of the Qinghai−Tibetan Plateau

Carbon dioxide (CO2) exchange between the atmosphere and grassland ecosystems is very important for the global carbon balance. To assess the CO2 flux and its relationship to environmental factors, the eddy covariance method was used to evaluate the diurnal cycle and seasonal pattern of the net ecosystem CO2 exchange (NEE) of a cultivated pasture in the Three-River Source Region ...

A Review of the Novel Application and Potential Adverse Effects of Proton Pump Inhibitors

, Yue-Qi Li, Lei Yu, Zi-Qing-Yun Yuan, Ling Meng, Hong-Wen Zhang and Yong-Qing Wang declare no conflict of interest. Compliance with Ethics Guidelines. This article is based on previously conducted

Saxifragifolin D attenuates phagosome maturation arrest in Mycobacterium tuberculosis-infected macrophages via an AMPK and VPS34-dependent pathway

Saxifragifolin D (SD), a traditional Chinese medicine, is a pentacyclic triterpenoid compound first isolated from Androsace umbellata. Various plant triterpenoids have been reported to exhibit antitubercular activity. In this study, THP-1-derived macrophages were infected with an attenuated M. tuberculosis (M.tb) strain, H37Ra. Intracellular replication of M.tb was evaluated by ...

Erratum to: Biomechanical consideration of prosthesis selection in hybrid surgery for bi-level cervical disc degenerative diseases

Department of Orthopaedics, The 306th Hospital of People's Liberation Army , Beijing , People's Republic of China a mistake and has been corrected. First and last names of the author Qi Li were interchanged

Rational Design of Disulfide Bonds Increases Thermostability of a Mesophilic 1,3-1,4-β-Glucanase from Bacillus terquilensis

1,3–1,4-β-glucanase is an important biocatalyst in brewing industry and animal feed industry, while its low thermostability often reduces its application performance. In this study, the thermostability of a mesophilic β-glucanase from Bacillus terquilensis was enhanced by rational design and engineering of disulfide bonds in the protein structure. Protein spatial configuration was ...

Design of fiber magnetic field sensor based on fiber Bragg grating Fabry-Perot cavity ring-down spectroscopy

Design of Fiber Magnetic Field Sensor Based on Fiber Bragg Grating Fabry-Perot Cavity Ring-Down Spectroscopy Qi LI 0 Haiyan CHEN 0 Corresponding author: Haiyan CHEN 0 0 School of Physics and ... r = 0.98, the refractive index of the single mode fiber is 1.5, and the cavity length is 0.5 m. The effect of the external magnetic field on Qi LI et al.: Design of Fiber Magnetic Field Sensor Based

Genetic Variation and Breeding Signature in Mass Selection Lines of the Pacific Oyster (Crassostrea gigas) Assessed by SNP Markers

populations. (b) Graph of delta K. (TIF) S1 Table. Summary of the statistics for 103 SNP loci in the wild and selected Crassostrea gigas populations. (XLS) Acknowledgments We wish to thank Qi Li for his help

The Sex Ratio at Birth for 5,338,853 Deliveries in China from 2012 to 2015: A Facility-Based Study

Objective The accuracy of a population-based sex ratio at birth (SRB) in China has long been questioned. To depict a more accurate profile, the present study used data from a national surveillance system for health facility births to explore the characteristics of SRB in China. Methods Data from China’s National Maternal Near Miss Surveillance System between 2012 and 2015 were ...

Genovariation Study of Hantavirus in Main Endemic Areas of Hemorrhagic Fever with Renal Syndrome in Hebei Province, China

Background Hemorrhagic fever with renal syndrome (HFRS) is an important infectious disease in Hebei Province. At present, cases from the northeast regions of the province account for >80% of the total incidences. However, studies that examine the region-specific genetic variations of the Hantavirus (HV), the causative pathogen for HFRS, have been lacking. Methods Rodents were ...