Search

Your search keyword '"Zheng Shicheng"' showing total 142 results
Start Over Author "Zheng Shicheng"
142 results on '"Zheng Shicheng"'

1. CTRP9 protects against MIA-induced inflammation and knee cartilage damage by deactivating the MAPK/NF-κB pathway in rats with osteoarthritis

Author

Zheng Shicheng, Ren Jing, Gong Sihai, Qiao Feng, and He Jinlong

Subjects
osteoarthritis, ctrp9, cartilage, inflammation, p38mapk/nf-κb, Biology (General), QH301-705.5
Abstract

C1q/TNF-related protein 9 (CTRP9), the closest paralog of adiponectin, has been reported to protect against inflammation-related diseases. However, its role in regulating osteoarthritis (OA) has not been fully elucidated. First, a rat model of OA was generated. Furthermore, rats with OA were injected with different doses of recombinant CTRP9 protein (rCTRP9), and the knee cartilage damage was evaluated. Finally, the phosphorylation of p38 and the secretion of matrix metalloproteinases (MMPs) were detected by Western blotting and enzyme-linked immunosorbent assay. Results revealed that CTRP9 was highly expressed in adipose tissue, followed by skeletal muscle and cartilage tissue, and less expressed in liver, kidney and lung. Moreover, the expression of CTRP9 significantly decreased in the monosodium iodoacetate (MIA) group in the knee cartilage and knee synovial fluid, and the contents of interleukin-1β (IL-1β) and IL-6 significantly increased in knee synovial fluid. In addition, rCTRP9 alleviated MIA-induced inflammation, oxidative stress and knee cartilage damage in a dose-dependent way. In addition, rCTRP9 could attenuate the expression of p38MAPK and p-p38 and suppress the expression of nuclear factor-kappa B (NF-κB), p65 and MMPs. Collectively, the results of the present study suggested that CTRP9 alleviates the inflammation of MIA-induced OA through deactivating p38MAPK and NF-κB signaling pathways in rats.

Published
2020
Full Text
View/download PDF

2. Life Analysis of Standard Planetary Roller Screw Mechanism based on Structural Parameter

Author

Fu Yongling, Zheng Shicheng, and Gan Fajin

Subjects
Standard planetary roller screw mechanism, Life, Lead of screw, Lead angle, Roller number, Mechanical engineering and machinery, TJ1-1570
Abstract

Taking the standard planetary roller screw mechanism for aircraft electro mechanical actuator as the research object,the analytical solution is obtained by calculating the mechanical properties of the fiber,using ANSYS Workbench software for finite element simulation analysis,and the analytical solution is compared with the simulation results,the maximum deviation value of the two is not more than 5%. On this basis,the influence of lead of screw （lead angle） on screw life is analyzed. The results show that with the increase of lead of screw （lead angle）,the life of screw pair gradually increases. It shows that proper increase lead of screw （lead angle）,can improve the life of screw pair. At the same time,the influence of roller root number on the life of screw pair is analyzed. With the increase of roller root number,total contact points increased,and the life of the screw pair will gradually increase. From the point of increasing the life of the screw pair,the more of roller root number is,the better. This research provides the basis for the optimization design and analysis of the planetary roller screw mechanism with high reliability and long life.

Published
2018
Full Text
View/download PDF

3. Electric Vehicle Charging Load Forecasting Based on Improved Gipps and Its Impact on the Distribution Network

Author

Xia, Hui, Zheng, Shicheng, Lang, Jiahong, Hua, Yuting, Zhang, Qian, Wu, Hongbin, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Yang, Qingxin, editor, Li, Zewen, editor, and Luo, An, editor

Published
2024
Full Text
View/download PDF

8. Maximum Power Point Tracking Control of Wind Power Generation System Without Inductance Decoupling

Author

Wang, Yu, Zheng, Shicheng, Lu, Mingjin, Qiu, Wei, Tian, Dengji, Lang, Jiahong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Hu, Cungang, editor, and Cao, Wenping, editor

Published
2023
Full Text
View/download PDF

10. Non-singular Terminal Sliding Mode Control Algorithm for DC/DC Boost Converter System Based on a Finite-Time Convergent Observer

Author

Qi, Mengmeng, Shu, Ying, Wan, Chao, Lang, Jiahong, Zheng, Shicheng, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Hu, Cungang, editor, Cao, Wenping, editor, Zhang, Pinjia, editor, Zhang, Zhenbin, editor, and Tang, Xi, editor

Published
2022
Full Text
View/download PDF

14. Progress in immunotherapy for brain metastatic melanoma.

Author

Zheng, Shicheng, Lin, Zhongqiao, Zhang, Ruibo, Cheng, Zihang, Li, Kaixin, Gu, Chenkai, Chen, Yu, and Lin, Jing

Subjects
IMMUNE checkpoint inhibitors, BRAIN metastasis, IMMUNOTHERAPY, MELANOMA, RADIOTHERAPY
Abstract

Melanoma is highly aggressive, with brain metastasis being a significant contributor to poor outcomes. Immunotherapy has emerged as a crucial treatment modality for melanoma, particularly for addressing brain metastases. This review explores recent developments in immunotherapy for patients with melanoma brain metastasis, with such treatments encompassing immune checkpoint inhibitors and various immunotherapy combination approaches, such as dual immunotherapy, immunotherapy combined with chemotherapy, immunotherapy combined with targeted drugs, and immunotherapy combined with radiotherapy. This article also discusses existing treatment obstacles and potential future avenues for research and clinical practice. [ABSTRACT FROM AUTHOR]

Published
2025
Full Text
View/download PDF

19. Research on Motion Relationships and Transmission Efficiency of Planetary Roller Screw

Author

Zhang, Wensen, Li, Wei, Zheng, Shicheng, Zhang, Peng, Qi, Xiaoye, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, and Zhang, Xinguo, editor

Published
2019
Full Text
View/download PDF

21. Study and Experimental Verification on Anti-Disturbance Control Strategy for Electro-Mechanical Servo Systems.

Author

Zheng, Shicheng, Wang, Deyi, Wei, Jingkun, Yang, Yunjie, and Zhu, Jihong

Subjects
VALUE engineering, PID controllers, TRANSFER functions, ACCELERATION (Mechanics), MATHEMATICAL models
Abstract

With technological advances and industrial upgrading, electro-mechanical actuators (EMAs) have gradually replaced traditional hydraulic actuation systems. During operation, force servo systems inevitably suffer from external force or position disturbances, thus affecting the output performance of the system. Therefore, it is of significant engineering application value to develop EMA anti-disturbance control strategies that exhibit strong robustness and are more easily applicable to engineering practice. In this study, an open-loop transfer function of the system with command signals and disturbance signals as inputs was established based on the nonlinear mathematical models built for the core components of EMAs. To overcome the impact of external position disturbances on the motion performance of the force servo system, a proportional integral derivative (PID) controller was introduced and a high-order transfer function associated with various parameters such as speed and acceleration was derived and obtained as feedforward compensation based on the mathematical model. By incorporating a three-loop PID controller, the impact of external disturbance forces on the motion performance of the position servo system was overcome and the tracking accuracy of the system was also improved. Finally, simulation models were built using AMESim software (AMESim 2020, LMS Imagine.Lab, Roanne, France) and a dual-channel EMA performance testing system was developed. Simulation and test results indicated that both anti-disturbance control methods exhibited strong robustness and excellent anti-disturbance performance, with the control accuracy and dynamic performance almost unaffected by disturbances. This verified the correctness of the single-channel EMA anti-disturbance control strategy and the usability of the simulation model. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

23. AutoMS: Automated Service for mmWave Coverage Optimization using Low-cost Metasurfaces.

Author

Ma, Ruichun, Zheng, Shicheng, Pan, Hao, Qiu, Lili, Chen, Xingyu, Liu, Liangyu, Liu, Yihong, Hu, Wenjun, and Ren, Ju

Subjects
FOIL stamping, WIRELESS communications, BEAMFORMING, BANDWIDTHS, COST
Abstract

mmWave networks offer wide bandwidth for high-speed wireless communication but suffer from limited range and susceptibility to blockage. Existing coverage provisioning solutions not only incur high costs but also require significant expert knowledge and manual efforts. In this paper, we present AutoMS, an automated service framework to optimize mmWave coverage by strategically designing and placing low-cost passive metasurfaces. Our approach consists of three key components: (1) joint optimization of metasurface phase configurations and placement as well as access point beamforming codebooks. (2) a fast 3D ray-tracing simulator for accelerated large-scale metasurface channel modeling. (3) a metasurface design amenable to ultra-low-cost hot stamping fabrication, featuring high reflectivity, near 2π phase control, and wideband support. Simulation and testbed experiments show that AutoMS can increase the median received signal strength by 11 dB in target rooms and over 20 dB at previous blind spots, and improve the median throughput by over 3× in real-world scenarios. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

37. An In-Depth Study on Load Distribution Characteristics of the Planetary Threaded Roller Bearing

Author

Junlin Pan, Yongling Fu, Deyi Wang, Zheng Shicheng, and Linjie Li

Subjects
Imagination, Materials science, Chemical substance, Article Subject, General Mathematics, media_common.quotation_subject, Theoretical models, 020101 civil engineering, Load distribution, 02 engineering and technology, Thread (computing), 0201 civil engineering, Search engine, 0203 mechanical engineering, QA1-939, Friction torque, media_common, business.industry, General Engineering, Structural engineering, Engineering (General). Civil engineering (General), Roller bearing, 020303 mechanical engineering & transports, TA1-2040, business, Mathematics
Abstract

To lay a solid base for the property analysis and structural optimization on the high-strength planetary threaded roller bearing (PTRB) which is commonly used in mountain-walking robotic platforms, this research mainly focuses on characterizing the load distribution on the bearing under different loading conditions. An in-depth analysis was performed on the structural components and the contact characteristics of the PTRB. Based on the space meshing and Hertz contact theories, the elastic deformation of both inner and outer rings and the threaded roller was evaluated when the bearing was subjected to an axial or radial load. Meanwhile, a calculation method was proposed to obtain the load distribution coefficients of the PTRB according to the compatibility equations. In this way, an analysis on the load distribution of the PTRB was provided on the basis of the theoretical models. The results indicated that the effect of the applied load was very limited on the load distribution coefficients under an axial loading condition. The maximum value was found at the first thread of the inner ring-threaded roller contact pair, while no obvious effect was found when the bearing was carrying a radial load. It was indicated that the uniformity of the load distribution was effectively improved for axial and radial loading conditions through adjusting the distance between threads and increasing the threaded roller numbers, respectively. Therefore, both the rated load and the life cycle of the bearing can be further improved, while the friction torque can be minimized within a limited space. The research provides an important guidance for the property analysis, design, and optimization of the PTRB.

Published
2020
Full Text
View/download PDF

38. PMSat: Optimizing Passive Metasurface for Low Earth Orbit Satellite Communication.

Author

Pan, Hao, Qiu, Lili, Ouyang, Bei, Zheng, Shicheng, Zhang, Yongzhao, Chen, Yi-Chao, and Xue, Guangtao

Subjects
LOW earth orbit satellites, TELECOMMUNICATION satellites, EARTH stations, ARTIFICIAL satellite launching, ORBITS (Astronomy), ARTIFICIAL satellite tracking
Abstract

Low Earth Orbit (LEO) satellite communication is essential for wireless communication. While manufacturing and launching LEO satellites have become efficient and cost-effective, ground stations remain expensive due to complex designs for handling severe path losses and precise beam tracking. Hence, it is important to develop low cost and high-performance ground stations for widespread adoption of LEO satellite communication. Towards realizing this goal, we design a passive metasurface-enhanced LEO ground station system, named PMSat, combining metasurface's fine-grained beamforming capability with a small-size phased array's adaptive steering and focusing. For uplink, we jointly optimize the phase array codebook and uplink metasurface phase profile, and realize electronic steering by switching the codeword. We further jointly optimize the downlink metasurface phase profile to improve the focusing performance and enhance the received signal strength (RSS) over a wide range of incident angles. Our PMSat prototype consists of a single passive metasurface with 21 × 21 elements for uplink and 22 × 22 for downlink, along with 1 × 4 receiving and 1 × 4 transmitting phased array antennas. The effectiveness of our proposed PMSat is validated through extensive experiments, and results demonstrate that the optimized metasurface improves the SNR by 8.32 dB and 16.57 dB for uplink and downlink, respectively. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

43. Friction Torque Analysis of Planetary Roller Screw Mechanism in Roller Jamming

Author

Tianxiang Xia, Jian Fu, Linjie Li, Zheng Shicheng, and Yongling Fu

Subjects
0209 industrial biotechnology, business.product_category, Materials science, Article Subject, General Mathematics, Structural failure, General Engineering, Mechanical engineering, Jamming, 02 engineering and technology, Engineering (General). Civil engineering (General), Finite element method, Mechanism (engineering), 020303 mechanical engineering & transports, 020901 industrial engineering & automation, Contact mechanics, 0203 mechanical engineering, QA1-939, TA1-2040, Contact theory, business, Roller screw, Mathematics, Friction torque
Abstract

The load distribution model of the planetary roller screw mechanism (PRSM) is established on the basis of Hertz contact theory. The objective is to obtain a friction torque model of the PRSM in roller jamming. An example is provided to calculate the friction torque of the PRSM in roller jamming. Thereafter, the transmission efficiency is calculated. A static structural analysis is performed using the finite element method to estimate the contact stress between the threads of the PRSM components. Computational results indirectly reveal that roller jamming exerts considerable influence on the friction torque of the PRSM. Results show that the friction torque of the planetary roller screw increases when the roller is jammed and the wear of the parts is accelerated. This condition leads to structural failure. The results of this study can serve as a foundation for electromechanical actuation systems, which can be useful in designing antijamming systems for safety-critical aircraft applications.

Published
2020
Full Text
View/download PDF

47. A Novel Planetary Thread Roller Bearing: Design and Analysis of Load Characteristic

Author

Deyi Wang, Junlin Pan, Fu Yongling, Zheng Shicheng, Linjie Li, and Jianbo Wang

Subjects
Materials science, Mechanics of Materials, Mechanical Engineering, Mechanical engineering, Thread (computing), Computer Graphics and Computer-Aided Design, Computer Science Applications, Roller bearing
Abstract

A novel planetary thread roller bearing (PTRB) was proposed in this paper based on the Hertz theory combined with multiple principles (e.g., equivalent steel ball, multi-point meshing, and power dividing). A significant improvement in load-carrying capacity, compared with existing bearings, was achieved and thus providing a new option for the advanced equipment with high thrust-to-weight ratio requirement. The newly proposed PTRB exhibited a 83% increase in dynamic axial load rating while a comparable static axial load rating comparing with the thrust ball bearing with a comparable size. Furthermore, the working efficiency of the new PTRB was constantly higher than 97%. A self-degradation operation was achieved by the system when some thread rollers were stuck, which improved the system fault tolerance. Finally, friction torque tests were performed on the self-developed test instrument. The results showed a good agreement with the theoretical analysis.

Published
2020
Full Text
View/download PDF

48. Control strategy analysis of Multilevel inverter based on H-bridge

Author

Wang Qingqing, Fang Xupeng, Zheng Shicheng, Qi Zhongming, Ti Xiaodong, and Wang Xiaoli

Subjects
Computer science, 010401 analytical chemistry, Topology (electrical circuits), 02 engineering and technology, 021001 nanoscience & nanotechnology, H bridge, 01 natural sciences, 0104 chemical sciences, Power (physics), Harmonic analysis, Control theory, Harmonics, Waveform, Inverter, 0210 nano-technology, Voltage
Abstract

Multi-level inverters are widely used in large motor drives and high-power power supply devices represented by high-voltage frequency conversion, for the problem of the output voltage of traditional inverter is more output harmonics and low quality. Starting from the principle of the inverter’s traditional carrier phase-shifting control strategy, this paper uses the cascaded H-bridge circuit topology to analyze the hybrid modulation control strategy based on carrier phase-shifting and third-harmonic injection technology. Analyzed the multilevel inverter switch of the working situation in detail, and designed a kind of double closed loop control system, The output voltage and harmonics of the multi-level inverter are simulated and verified by MATLAB. The final results show that the control strategy helps to improve the output waveform quality, it is feasible.

Published
2020
Full Text
View/download PDF

49. Analysis of Short Circuit Fault Detection of Power Switch of Impedance-source Inverter Based on Shoot-through Characteristic

Author

Li Chenna, Zheng Shicheng, Fang Xupeng, Qi Zhongming, Wang Qingqing, and Wang Pu

Subjects
Short circuit fault, business.industry, Computer science, 010401 analytical chemistry, Electrical engineering, Hardware_PERFORMANCEANDRELIABILITY, 02 engineering and technology, 021001 nanoscience & nanotechnology, Fault (power engineering), 01 natural sciences, Fault detection and isolation, 0104 chemical sciences, Power (physics), Inverter, 0210 nano-technology, Shoot through, business, Electrical impedance
Abstract

This paper carried out the detection research on the power switch short circuit fault of the three-phase Impedance-source inverter. Based on the shoot-through characteristics of the three-phase Impedance-source inverter, the fault characteristics of the inverter when the power switch short-circuit fault occurred are analyzed. The power switch fault detection of the Impedance-source inverter is performed through a simple external detection circuit, and a fault information will be sent to the CPU. The fault detection model of the Impedance-source inverter is established through simulation, which verifies the accuracy of detecting the power switch short-circuit fault using the shoot-through characteristic.

Published
2020
Full Text
View/download PDF

50. Analysis of Vibration Characteristics of Rolling Linear Guides

Author

Wanguo Li, Linjie Li, Zheng Shicheng, Chang Du, Yongling Fu, and Chen Li

Subjects
0209 industrial biotechnology, Computer science, business.industry, Stiffness, Natural frequency, 02 engineering and technology, Structural engineering, Collision, Shock (mechanics), Vibration, 020901 industrial engineering & automation, 0202 electrical engineering, electronic engineering, information engineering, Ball (bearing), medicine, 020201 artificial intelligence & image processing, Turning radius, Impact, medicine.symptom, business
Abstract

The motion accuracy of the system is directly affected by the vibration characteristics of the components. In this paper, the ball linear guides for high-precision mobile platforms for chip inspection equipment are taken as research objects, and their vibration characteristics are analyzed. Based on the theoretical analysis of the contact characteristics of the contact pair based on HertZ theory, the finite element analysis software was used to analyze the modal of the ball linear guide. Among them, the change of normal contact stiffness has a greater impact on the system modal. The material and structural characteristics of the contact pair are the main factors affecting the natural frequency of the system. The magnitudes of each mode and the first six natural frequencies are given. Based on Newtonian mechanics, a mathematical model of the collision between the ball and the returner is established, and the influence of the structural parameters on the collision force is analyzed. The impact of the turning radius on the impact force is negligible, and the initial relative speed, ball mass, and elastic modulus have a greater impact on the impact force. For the ball linear guide rails studied in this paper, the impact force of the ball on the system during the movement is less than 40N, and the vibration shock frequency is less than 7.5Hz. It lays the foundation for the follow-up compensation of the collision force by using the motor feedforward control method, and improves the system's motion accuracy and positioning accuracy.

Published
2020
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results