Search scope:
排序: Display mode:
Tomographic diagnosis of defects in hydraulic concrete structure
ZHAO Mingjie, XU Xibin
Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3, Pages 226-232 doi: 10.1007/s11709-008-0027-5
Keywords: satisfactory processing orientation tomographic diagnosis orientation perpendicular
Mohammad SALAVATI, Arvin MOJAHEDIN, Ali Hossein Nezhad SHIRAZI
Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3, Pages 623-631 doi: 10.1007/s11709-020-0616-5
Keywords: hexagonal boron-nitride mechanical properties crack notch point defects molecular dynamics
Automated classification of civil structure defects based on convolutional neural network
Pierclaudio SAVINO, Francesco TONDOLO
Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2, Pages 305-317 doi: 10.1007/s11709-021-0725-9
Keywords: concrete structure infrastructures visual inspection convolutional neural network artificial intelligence
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1755-1764 doi: 10.1007/s11705-023-2318-8
Keywords: oxygen evolution reaction porous carbon nanosheets Co nanoparticles edge-induced topological defects
Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size
Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG
Frontiers in Energy 2018, Volume 12, Issue 1, Pages 143-157 doi: 10.1007/s11708-018-0520-z
Keywords: thermal reffusivity theory phonon behavior structure defects structural thermal domain (STD) size 2D
Determining casting defects in near-net shape casting aluminum parts by computed tomography
Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER
Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 48-52 doi: 10.1007/s11465-018-0493-y
Keywords: near-net shape casting aluminum parts casting defects low pressure die casting die casting semi-solid
Detection of solder bump defects on a flip chip using vibration analysis
Junchao LIU, Tielin SHI, Qi XIA, Guanglan LIAO
Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 29-37 doi: 10.1007/s11465-012-0314-7
Keywords: flip chip defect detection ultrasonic excitation vibration analysis
Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in
Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu
Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1102-y
An image-recognition-based diagnosis system of pipe defect types was established. 1043 practical pipe images were gathered by CCTV robot in a southern Chinese city. The overall accuracy of the system is 84% and the highest accuracy is 99.3%. The accuracy shows positive correlation to the number of training samples.
Keywords: Sewer pipe defects Defect diagnosing Image recognition Multi-features extraction Support vector machine
Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1, Pages 93-101 doi: 10.1007/s11705-022-2175-x
Keywords: g-C3N4 nitrogen defect sulfur doping photodegradation plasma
Loss of liver kinase B1 causes planar polarity defects in cochlear hair cells in mice
Yuqin Men,Aizhen Zhang,Liwen Zhang,Yecheng Jin,Zhishuo Wang,Jing Zhao,Xiaolin Yu,Jian Zhang,Jiangang Gao
Frontiers of Medicine 2016, Volume 10, Issue 4, Pages 481-489 doi: 10.1007/s11684-016-0494-3
The tumor suppressor gene liver kinase B1 (LKB1), also called STK11, encodes a serine/threonine kinase. LKB1 plays crucial roles in cell differentiation, proliferation, and polarity. In this study, LKB1 conditional knockout mice (LKB1Pax2 CKO mice) were generated using Pax2-Cre mice to investigate the function of LKB1 in inner ear hair cells during early embryonic period. LKB1Pax2 CKO mice died perinatally. Immunofluorescence and scanning electron microscopy revealed that stereociliary bundles in LKB1Pax2 CKO mice were clustered and misoriented, respectively. Moreover, ectopic distribution of kinocilium bundles resulting from abnormal migration of kinocilium was observed in the mutant mice. The orientation of stereociliary bundles and the migration of kinocilia are critical indicators of planar cell polarity (PCP) of hair cells. LKB1 deficiency in LKB1Pax2 CKO mice thus disrupted hair cell planar polarity during embryonic development. Our results suggest that LKB1 is required in PCP formation in cochlear hair cells in mice.
Keywords: LKB1 stereociliary bundles kinocilium planar cell polarity hearing mice
STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT
Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4, Pages 503-509 doi: 10.15302/J-FASE-2023528
STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT
Keywords: GREEN AGRICULTURAL PROMOTE POLLUTION SOURCE DEVELOPMENT POINT STRENGTHENING CONTROL
Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo
Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4, Pages 998-1007 doi: 10.1007/s11705-020-1994-x
Keywords: nitrogen and phosphorus doping non-noble nickel catalyst aromatic compounds hydrogenation
M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY
Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1, Pages 23-28 doi: 10.1007/s11465-012-0304-9
This paper presents an optimal control strategy for optimal trajectory planning of mobile robots by considering nonlinear dynamic model and nonholonomic constraints of the system. The nonholonomic constraints of the system are introduced by a nonintegrable set of differential equations which represent kinematic restriction on the motion. The Lagrange’s principle is employed to derive the nonlinear equations of the system. Then, the optimal path planning of the mobile robot is formulated as an optimal control problem. To set up the problem, the nonlinear equations of the system are assumed as constraints, and a minimum energy objective function is defined. To solve the problem, an indirect solution of the optimal control method is employed, and conditions of the optimality derived as a set of coupled nonlinear differential equations. The optimality equations are solved numerically, and various simulations are performed for a nonholonomic mobile robot to illustrate effectiveness of the proposed method.
Keywords: mobile robot trajectory planning nonlinear dynamic optimal control
Tu Hailing
Strategic Study of CAE 2000, Volume 2, Issue 1, Pages 7-17
Keywords: silicon wafers epitaxial silicon wafers SiGe silicon-on-insulator (SOI) impurities behavior defects control
Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0686-2
Keywords: autonomous excavation unmanned electric shovel point cloud excavation trajectory planning
Title Author Date Type Operation
Tomographic diagnosis of defects in hydraulic concrete structure
ZHAO Mingjie, XU Xibin
Journal Article
Mechanical responses of pristine and defective hexagonal boron-nitride nanosheets: A molecular dynamics investigation
Mohammad SALAVATI, Arvin MOJAHEDIN, Ali Hossein Nezhad SHIRAZI
Journal Article
Automated classification of civil structure defects based on convolutional neural network
Pierclaudio SAVINO, Francesco TONDOLO
Journal Article
“Charging” the cigarette butt: heteroatomic porous carbon nanosheets with edge-induced topological defects
Journal Article
Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size
Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG
Journal Article
Determining casting defects in near-net shape casting aluminum parts by computed tomography
Jiehua LI, Bernd OBERDORFER, Daniel HABE, Peter SCHUMACHER
Journal Article
Detection of solder bump defects on a flip chip using vibration analysis
Junchao LIU, Tielin SHI, Qi XIA, Guanglan LIAO
Journal Article
Diagnosis of sewer pipe defects on image recognition of multi-features and support vector machine in
Xiangyang Ye, Jian’e Zuo, Ruohan Li, Yajiao Wang, Lili Gan, Zhonghan Yu, Xiaoqing Hu
Journal Article
Tuning nitrogen defects and doping sulfur in carbon nitride for enhanced visible light photocatalytic
Journal Article
Loss of liver kinase B1 causes planar polarity defects in cochlear hair cells in mice
Yuqin Men,Aizhen Zhang,Liwen Zhang,Yecheng Jin,Zhishuo Wang,Jing Zhao,Xiaolin Yu,Jian Zhang,Jiangang Gao
Journal Article
STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT
Journal Article
Highly uniform Ni particles with phosphorus and adjacent defects catalyze 1,5-dinitronaphthalene hydrogenation
Wei Xiong, Susu Zhou, Zeyong Zhao, Fang Hao, Zhihui Cai, Pingle Liu, Hailiang Zhang, Hean Luo
Journal Article
Trajectory planning of mobile robots using indirect solution of optimal control method in generalized point-to-point
M. NAZEMIZADEH, H. N. RAHIMI, K. AMINI KHOIY
Journal Article
Behavior of Impurities, Defects and Surface Morphology for Silicon and Silicon Based Semiconducting Materials
Tu Hailing
Journal Article