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6 results on '"Cao, Junfang"'

1. A Wireless Covert Channel Based on Syndrome-Trellis Codes

Author

Cao, Pengcheng, Liu, Yun, Bu, Weixiong, Cao, Junfang, 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, Dong, Jian, editor, and Zhang, Long, editor

Published
2023
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2. Mathematical Model and Algorithm of Multi-Index Transportation Problem in the Background of Artificial Intelligence

Author

Cao, Junfang

Subjects
Artificial intelligence -- Analysis, Transportation industry -- International economic relations, Algorithms -- Analysis, Algorithm, Artificial intelligence, Transportation industry
Abstract

The development of artificial intelligence has brought rapid changes to human life and brought great convenience to human activities. The development of various modes of transportation has also brought convenience to people's travel and commodity transactions, but it has also added more issues that need to be carefully considered. Because of the diversification of transportation methods, transportation problems also arise many fields, such as air transportation, water transportation, and land transportation. The development of mathematical models and algorithms for transportation problems is also in full swing, and it is a major trend to introduce mathematical models and algorithms into the solution of transportation problems. This paper deals with the multi-index transportation problem by establishing a multi-index mathematical model and algorithm to find a scientific transportation method for the goods to be transported, so as to save the cost and time of transportation. Experiments show that the mathematical model established in this paper has high efficiency for solving the multi-index transportation problem. At the same time, the most suitable transportation method can also be selected for the transportation of goods, and the route planned by the mathematical model and algorithm can reduce the risk to 12.34%., Author(s): Junfang Cao (corresponding author) [1] 1. Introduction The transportation problem is a special form of common linear programming, which has both the common properties of linear programming and its [...]

Published
2022
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4. An ultrasonic imaging guided medical robot system for microwave ablation therapy

Author

Cao Yingyu, Cao Junfang, Jiang Lipei, Cai Xiaoyun, Liu Xiangchen, Deng Shuangcheng, and Xue Long

Subjects
Robot kinematics, Engineering, Medical robot, business.industry, Acoustics, Microcomputer, Microwave ablation, Robot, Liver neoplasm, Ultrasonic sensor, business, Intersection (Euclidean geometry), Biomedical engineering
Abstract

This article proposes one kind of ultrasonic imaging guided medical robot system with a six-joint arm. This system can detect the real-time space position of the ultrasonic probe by sensors in six joints of the arm. In the microwave ablation liver neoplasm treatment, when the six-joint arm holds the ultrasonic probe to scan on the body surface of a patient, the system's microcomputer can determinate the space position of the ultrasonic probe by the data from various joints' sensors, and make a three dimensional restructuring of the tumor ultrasonic image so as to guide the medical surgical operation. The arm's six joints are assembled in an intersection combination way, which simplifies the calculating and controlling algorithm. The simulation results indicate that this ultrasonic imaging guided medical robot system has a high measuring accuracy and can satisfy the request of ultrasonic image guiding.

Published
2008

6. Normative Reference Values and International Comparisons for the 20-Metre Shuttle Run Test: Analysis of 69,960 Test Results among Chinese Children and Youth.

Author

Zhang F, Yin X, Bi C, Li Y, Sun Y, Zhang T, Yang X, Li M, Liu Y, Cao J, Yang T, Guo Y, and Song G

Subjects
Adolescent, Age Factors, Child, China, Cross-Sectional Studies, Female, Humans, Male, Oxygen Consumption, Reference Values, Sex Factors, Asian People, Cardiorespiratory Fitness, Exercise Test methods, Physical Endurance physiology, Running physiology
Abstract

There is increasing evidence that cardiorespiratory endurance (CRE) is declining among Chinese children and youth. The 20-meter shuttle run test (20-m SRT) is considered the most effective and widely used field-based measurement of CRE for children and youth worldwide. However, there have been few attempts to set 20-m SRT norms for Chinese children and youth. We aimed to develop sex- and age-specific 20-m SRT norms for Chinese children and youth, and compare them with international standards. Participants were 69,960 healthy children and youth aged 9-17 years from six geographical areas of China, selected using a stratified cluster random sampling method. Sex- and age-specific 20-m SRT percentiles and curves were extracted for four common 20-m SRT metrics (laps, completed stages/minutes, speed at the last complete stage, estimated peak oxygen uptake). We also estimated the prevalence of healthy CRE according to the interim international cut-points (42 mL.kg -1 min -1 for boys, 35 mL·kg· 1 min -1 for girls). Chinese boys consistently outperformed girls, while more girls (86.4%) exhibited healthy CRE than boys (67.1%). Younger children and youth were more likely to meet the standards compared with the older, regardless of sex. Chinese children and youth underperformed international norms by 0.85% for boys and 3.1% for girls. The performance indicator (z-score) of Chinese children and youth was -0.01, indicating that 20-m SRT performance was worse than the international mean. The sex differences were also higher for international than Chinese students. This study provided national sex- and age-specific 20-m SRT Chinese norms, offering a valuable tool for screening, monitoring and identifying target groups for future interventions and early prevention of cardiovascular risk factors., (© Journal of Sports Science and Medicine.)

Published
2020

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