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A-STC: auction-based spanning tree coverage algorithm formotion planning of cooperative robots

The multi-robot coverage motion planning (MCMP) problem in which every reachable area must be covered is common in multi-robot systems. To deal with the MCMP problem, we propose an efficient, complete, and off-line algorithm, named the “auction-based spanning tree coverage (A-STC)” algorithm. First, the configuration space is divided into mega cells whose size is twice the...

Evolution of interfacial dislocation networks during long term thermal aging in Ni-based single crystal superalloy DD5

Interfacial dislocations found in single crystal superalloys after long term thermal aging have an important effect on mechanical properties. Long term thermal aging tests for DD5 single crystal superalloy were carried out at 1,100 °C for 20, 100, 200, 500 and 1000 h, and then cooled by air. The effect of long term thermal aging on the dislocation networks at the γ/γ' interfaces...

A new massively parallel nanoball sequencing platform for whole exome research

Whole exome sequencing (WES) has been widely used in human genetics research. BGISEQ-500 is a recently established next-generation sequencing platform. However, the performance of BGISEQ-500 on WES is not well studied. In this study, we evaluated the performance of BGISEQ-500 on WES by side-to-side comparison with Hiseq4000, on well-characterized human sample NA12878. BGISEQ...

Aedes albopictus production in urban stormwater catch basins and manhole chambers of downtown Shanghai, China

this manuscript. Author Contributions Conceptualization: Qiang Gao. Data curation: Qiang Gao. Formal analysis: Qiang Gao. Funding acquisition: Jianjun Zhou. Investigation: Fei Wang, Xihong Lv, Hui ... Cao, Fei Su. Writing ? original draft: Qiang Gao, Fei Wang, Xihong Lv, Hui Cao. Writing ? review & editing: Jianjun Zhou, Peien Leng. 17 / 19 18 / 19 1. Robertson RC , Hu SM . The tiger mosquito in

A Numerical Method Based on the Parametric Variational Principle for Simulating the Dynamic Behavior of the Pantograph-Catenary System

Based on the finite element method (FEM), the parametric variational principle (PVP) is combined with a numerical time-domain integral method to simulate the dynamic behavior of the pantograph-catenary system. Based on PVP, formulations for the nonlinear droppers in the catenary and for the contact between the pantograph and the contact wire are proposed. The formulations can...

Passivity-Based Control for Rocket Launcher Position Servo System Based on ADRC Optimized by IPSO-BP Algorithm

In order to achieve better motion accuracy and higher robustness of the shipborne rocket launcher position servo system driven by a permanent magnet synchronous motor (PMSM), a passivity-based controller based on active disturbance rejection control (ADRC) optimized by improved particle swarm optimization-back propagation (IPSO-BP) algorithm is proposed in this paper. The...

Passivity-Based Control for Rocket Launcher Position Servo System Based on ADRC Optimized by IPSO-BP Algorithm

In order to achieve better motion accuracy and higher robustness of the shipborne rocket launcher position servo system driven by a permanent magnet synchronous motor (PMSM), a passivity-based controller based on active disturbance rejection control (ADRC) optimized by improved particle swarm optimization-back propagation (IPSO-BP) algorithm is proposed in this paper. The...

Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process

By considering the tightening process, a three-dimensional elastic finite element analysis is conducted to explore the mechanism of bolt self-loosening under transverse cyclic loading. According to the geometrical features of the thread, a hexahedral meshing is implemented by modifying the node coordinates based on cylinder meshes and an ABAQUS plug-in is made for parametric...

Self-Loosening Failure Analysis of Bolt Joints under Vibration considering the Tightening Process

By considering the tightening process, a three-dimensional elastic finite element analysis is conducted to explore the mechanism of bolt self-loosening under transverse cyclic loading. According to the geometrical features of the thread, a hexahedral meshing is implemented by modifying the node coordinates based on cylinder meshes and an ABAQUS plug-in is made for parametric...

Different changes of microarchitectures of cortical and cancellous bones in sheep femoral head after long-term glucocorticoid interventions

Laboratory SDU for their care of the animals. Author information Author notes Yuan-Hui Li, Fu-Qiang Gao, Li-Ming Cheng, Mian-Dong Zeng, Qin-Ye Qiu and Ming Ding contributed equally to this work ... Hospital, Beijing, 100029, ChinaFu-Qiang Gao & Li-Ming ChengOrthopaedic Research Laboratory, Department of Orthopaedics O, Odense University Hospital, Institute of Clinical Research, University of Southern

Temporal and spatial variation of potassium balance in agricultural land at national and regional levels in China

Ding. Methodology: Wentian He, Ping He. Project administration: Yingxia Liu. Resources: Yingxia Liu, Jinchuan Ma. Software: Yingxia Liu. Supervision: Wentian He, Qiang Gao, Ping He. Validation

The LINC01138 drives malignancies via activating arginine methyltransferase 5 in hepatocellular carcinoma

Search for Jia Fan in:Nature Research journals • PubMed • Google Scholar Search for Shenglin Huang in:Nature Research journals • PubMed • Google Scholar Search for Qiang Gao in:Nature Research journals ... interests The authors declare no competing interests. Corresponding authors Correspondence to Qiang Gao or Yingjun Zhao or Xianghuo He. Electronic supplementary material Supplementary InformationPeer

Doping-induced structural phase transition in cobalt diselenide enables enhanced hydrogen evolution catalysis

Transition metal dichalcogenide materials have been explored extensively as catalysts to negotiate the hydrogen evolution reaction, but they often run at a large excess thermodynamic cost. Although activating strategies, such as defects and composition engineering, have led to remarkable activity gains, there remains the requirement for better performance that aims for real...

TRIM24 is an oncogenic transcriptional co-activator of STAT3 in glioblastoma

Jiao Tong University, Shanghai, 200127, ChinaDeguan Lv, Weiwei Zhang, Lina Song, Jianming Tang, Wei-Qiang Gao, Shi-Yuan Cheng & Haizhong FengSchool of Biomedical Engineering, Shanghai Jiao Tong ... Search for Lina Song in:Nature Research journals • PubMed • Google Scholar Search for Jianming Tang in:Nature Research journals • PubMed • Google Scholar Search for Wei-Qiang Gao in:Nature Research

Elevated expression of Par3 promotes prostate cancer metastasis by forming a Par3/aPKC/KIBRA complex and inactivating the hippo pathway

City (15ZR1422700); 3) Ziqiang Yang from the National Natural Science Foundation of China (31401233); 4) Wei-Qiang Gao from the Ministry of Science and Technology of the People’s Republic of China

A Hybrid Wavelet Fuzzy Neural Network and Switching Particle Swarm Optimization Algorithm for AC Servo System

A hybrid computational intelligent approach which combines wavelet fuzzy neural network (WFNN) with switching particle swarm optimization (SPSO) algorithm is proposed to control the nonlinearity, wide variation in loads, time variation, and uncertain disturbance of the high-power AC servo system. The WFNN method integrated wavelet transforms with fuzzy rules and is proposed to...

Facile Synthesis of Electroconductive AZO@TiO2 Whiskers and Their Application in Textiles

The electroconductive AZO@TiO2 whiskers have been successfully prepared via coating Al doped ZnO onto TiO2 whisker. The orthogonal tests were employed to optimize the synthetic conditions. The crystallographic structure and the morphology of the AZO@TiO2 whiskers and the polypropylene nonwoven fabrics modified with AZO@TiO2 whiskers were characterized by X-ray photoelectron...

Facile Synthesis of Electroconductive AZO@TiO2 Whiskers and Their Application in Textiles

The electroconductive AZO@TiO2 whiskers have been successfully prepared via coating Al doped ZnO onto TiO2 whisker. The orthogonal tests were employed to optimize the synthetic conditions. The crystallographic structure and the morphology of the AZO@TiO2 whiskers and the polypropylene nonwoven fabrics modified with AZO@TiO2 whiskers were characterized by X-ray photoelectron...

Monitoring of Distillation Column Based on Indiscernibility Dynamic Kernel PCA

Systems, Tianjin University of Technology, Tianjin 300384, China Received 31 August 2015; Accepted 10 January 2016 Academic Editor: Wen Chen Copyright © 2016 Qiang Gao et al. This is an open access

Efficient generation of functional haploid spermatids from human germline stem cells by three-dimensional-induced system

, Fan Zhou, Wei-Qiang Gao & Zuping HeClinical and Translational Research Center of Shanghai First Maternity & Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092 ... -Qiang Gao in:Nature Research journals • PubMed • Google Scholar Search for Zheng Li in:Nature Research journals • PubMed • Google Scholar Search for Zuping He in:Nature Research journals • PubMed