作者机构：
[Chen, Nan; Yuan, Tie-chui; Li, Zhi-you] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.;[Teng, Hao; Chen, Long-wei] Univ South China, Coll Mech Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Li, ZY ] C;[Teng, H ] U;Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China.;Univ South China, Coll Mech Engn, Hengyang 421001, Peoples R China.
摘要：
Mining can provide abundant resources, but it also causes heavy metal wastewater pollution, which poses a serious threat to aquatic ecosystems. In this study, Cypridopsis vidua was used as the test organism to investigate the single and combined acute toxicity of common heavy metals (such as chromium (Cr) and nickel (Ni)) in mining wastewater. Then, a random forest model (RF model) was used to predict the combined toxicity of chromium and nickel. Single acute toxicity experiments showed that the 96 h-LC(50 )values of the Cr and Ni for Cypridopsis vidua were 0.81 mg/L and 4.3 mg/L, respectively. aCr was more toxic than Ni. Furthermore, the combined acute toxicity experiments demonstrated that the toxicity of Cr-Ni was higher than Ni but lower than Cr. The predicted results of the RF model were highly consistent with the experimental results of the Cr-Ni combined acute toxicity. So, the model has accurate toxicity prediction ability.
期刊：
Chinese Control Conference,2021年2021-July:8496-8501 ISSN：1934-1768
通讯作者：
Xiao, Z
作者机构：
[Yuan Fengwei; Xiao Zhang] Univ South China, Coll Mech Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Xiao, Z ] U;Univ South China, Coll Mech Engn, Hengyang 421001, Peoples R China.
会议名称：
2021 40th Chinese Control Conference (CCC)
会议时间：
26 July 2021
会议地点：
Shanghai, China
会议主办单位：
[Xiao Zhang;Yuan Fengwei] Univ South China, Coll Mech Engn, Hengyang 421001, Peoples R China.
会议论文集名称：
2021 40th Chinese Control Conference (CCC)
关键词：
Image processing;Deep convolutional neural network;Resnet-18;Camellia seeds;Sorting and Identification Method
摘要：
The sorting and identification of camellia seeds is a key technical link in the production and processing of camellia oil. The accurate removal of moldy camellia seeds can reduce the acidity of camellia oil, and the removal of camellia husks can improve the quality of subsequent production of camellia oil products. The traditional image processing methods face the problems of poor human selection features and complex feature extraction process. In this paper, a method for sorting and identifying camellia seeds based on deep learning is established. Based on the Resnet-18 network model, a transfer learning method is used to establish the camellia seed sorting and identification model. This Resnet-18 convolutional neural network proposes a residual function and Shortcut Connections to solve the problem of result degradation and the disappearance of gradient as the number of network layers deepens question. This model can independently recognize the effective features of the object, avoiding the complex process of artificially extracting features in traditional recognition algorithms. In addition, an image acquisition device is designed for the camellia seed mixture after the dehulling process and 1,200 sample pictures were collected. After testing, when the learning rate is 0.001 and the MiniBatchSize is 16, the recognition accuracy rate is 96.21%. The experimental data show that this method can effectively sort and identify Camellia seeds. This research provides a certain theoretical reference for the design of camellia seed sorting machinery.
通讯机构：
[Liu, Qiong] U;Univ South China, Sch Mech Engn, Hengyang, Peoples R China.
会议名称：
2019 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC)
会议时间：
October 2019
会议地点：
Guilin, China
会议主办单位：
Guilin Univ Elect Technol
会议论文集名称：
2019 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC)
关键词：
robot, Cyber-Physical Production System, integration
摘要：
Robots are expected to be used in the smart manufacturing and smart factory with the help of information and communication technologies. The increasing and consistent integration of ICTs and robot into the production systems in subsystems and components are needed. The mechatronic systems become cyber-physical systems through additional communication skills and autonomy in behavior on external influences and internally stored settings. Robots are integrated in the Cyber-Physical Production System to realize smart factory and smart manufacturing. In a laboratory environment, innovative logistical systems integrated with robots are built up to apply horizontal and vertical integration into practice for research investigations.
期刊：
IOP Conference Series: Earth and Environmental Science,2019年267(4):042028 ISSN：1755-1307
通讯作者：
Qing, Defan
作者机构：
[Chen, Zhuo; Qing, Defan; Shu, Mengmei] Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Qing, Defan] U;Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
2019 3rd International Workshop on Renewable Energy and Development, IWRED 2019
会议时间：
8 March 2019 through 10 March 2019
会议地点：
Guangzhou, PEOPLES R CHINA
会议主办单位：
[Shu, Mengmei;Qing, Defan;Chen, Zhuo] Univ South China, Coll Mech Engn, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
IOP Conference Series-Earth and Environmental Science
关键词：
Heat resistance;Renewable energy resources;Tubes (components);Two phase flow;Comprehensive evaluation;FLUENT software;Fluid solids;Heat transfer characteristics;Heat Transfer enhancement;Liquid-solid two phase flow;Solid particles;Volume concentration;Heat transfer performance
期刊：
Journal of Physics: Conference Series,2019年1300(1):012095 ISSN：1742-6588
通讯作者：
Dong, YQ
作者机构：
[Dong, Yunqiao] Univ South China, Sch Mech Engn, Hengyang, Peoples R China.;[Dong, Yunqiao] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
通讯机构：
[Dong, YQ ] U;Univ South China, Sch Mech Engn, Hengyang, Peoples R China.;Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
会议地点：
Taiyun, PEOPLES R CHINA
会议主办单位：
[Dong, Yunqiao] Univ South China, Sch Mech Engn, Hengyang, Peoples R China.^[Dong, Yunqiao] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
会议论文集名称：
Journal of Physics Conference Series
摘要：
The time-dependent boundary element method (BEM) is widely used to solve transient heat conduction problem. The integrands of the domain integrals in the time-dependent BEM are close to singular when small time step is used. A straightforward computation of these integrals using Gaussian quadrature will produce large errors. To evaluate domain integrals accurately and efficiently, the sinh transformation combined with element subdivision method is proposed in this paper. With the sinh transformation, the integrands of the domain integrals become smoother. Meanwhile, the Gaussian points are shifted towards the source point due to the element subdivision. Thus, the 2D domain integrals in the time-dependent BEM can be computed accurately. Numerical examples have demonstrated the accuracy and efficiency of the proposed method.
摘要：
In the process of replanting, it is necessary to recognize that whether the tray grids are short of seedlings. In the seedling cultivating process, the phenomenon of seedling leaves intruding the adjacent grids due to various reasons make it difficult to identifying the tray grid that if it is lacking seedlings. The traditional image processing methods face the problems of poor human selection features and complex feature extraction process. In this paper, the recognition method of no-seedlings grids of tray based on deep convolutional neural network (GoogLeNet model) is proposed, which uses 9 Inception-V3 modules to construct deep convolutional neural network. Inception-V3 modules use selective multi-scale convolution kernels to extract grid seedlings features, use the convolution kernels factorization to reduce the operation parameters and use Batch Normalization algorithm to improve the model training speed to build the predictive recognition model of tray no-seedlings grids. To verify the effectiveness of this method, this research designed an images acquisition device, collected 3400 pepper tray grids image samples, label the samples by manual. Adjust the model parameters, Build the optimal deep convolution network recognition model when the learning rate is 0.01, Batch size is 100, iteration is 6000, the recognition average accuracy was 94.5%. By using this deep convolutional neural network model, test the samples with and without a leaf or several leaves intrusion individually. The test accuracy of samples without intrusion was 100%. The average accuracy of seedling identification with intrusion conditions was 81.5%. Compared with the traditional image processing method, the average accuracy of recognition with this method was increased by 16%. The results of this research prove that this deep convolutional neural network recognition method is very accurate when there is no intrusion, and the accuracy is relatively high when there is a leaf or several leaves intrusion. This research provide a new theoretical solution for the recognition of no-seedlings grids of tray.
期刊：
2019 IEEE Intl Conf on Parallel & Distributed Processing with Applications, Big Data & Cloud Computing, Sustainable Computing & Communications, Social Computing & Networking (ISPA/BDCloud/SocialCom/SustainCom),2019年:256-262 ISSN：2158-9178
通讯作者：
Wang, MH
作者机构：
[Wang, Chao; Jiang, Kaiwu; Liao, Xiangbai; Zhu, Lihua; Deng, Xianjun] Univ South China, Sch Elect Engn, Hengyang, Peoples R China.;[Wang, Minghua; Yi, Lingzhi] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
通讯机构：
[Wang, MH ] U;Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
会议名称：
2019 IEEE Intl Conf on Parallel & Distributed Processing with Applications, Big Data & Cloud Computing, Sustainable Computing & Communications, Social Computing & Networking (ISPA/BDCloud/SocialCom/SustainCom)
会议时间：
December 2019
会议地点：
Xiamen, China
会议主办单位：
[Zhu, Lihua;Jiang, Kaiwu;Deng, Xianjun;Liao, Xiangbai;Wang, Chao] Univ South China, Sch Elect Engn, Hengyang, Peoples R China.^[Wang, Minghua;Yi, Lingzhi] Univ South China, Cooperat Innovat Ctr Nucl Fuel Cycle Technol & Eq, Hengyang, Peoples R China.
会议论文集名称：
2019 IEEE Intl Conf on Parallel & Distributed Processing with Applications, Big Data & Cloud Computing, Sustainable Computing & Communications, Social Computing & Networking (ISPA/BDCloud/SocialCom/SustainCom)
关键词：
Wireless Sensor and Robot Networks (WSRNs);Sensor Relocation;Genetic Algorithm;Confident Information Coverage.
摘要：
With the rapid development and advances of microelectronics, wireless communication and mobile terminal technologies, wireless sensor and robot networks (WSRNs) have been widely applied in many industrial fields. However, in some hostile, dangerous, remote and unreachable environments of inconvenience for human beings, how to effectively and efficiently solve the problem of uneven distributed sensors, improve the network coverage through robot-assisted relocation is a hot issue in recent years. In this paper, we first formulate a TSP-based area coverage problem of robot-assisted sensor relocation (RASR) to achieve confident information coverage (CIC) through cooperative sensing among the neighboring sensors, which is called the RASR-CIC problem. Then, a Genetic-RASR-CIC algorithm and a Greedy-RASR-CIC algorithm are proposed to deal with the RASR-CIC problem to achieve confident information coverage. Experimental results show that the proposed algorithms considerably outperform Random-RASR-CIC algorithm in terms of the trajectory length of robot and the network coverage ratio.
摘要：
Vending machine as one kind of non-store business has been very popular in the developed countries for many years, and so has been China. Unfortunately, there are only very few related researches that have been done for studying consumers how they operate a vending machine by an efficient and convenient way. The main goal of this research is to explore how to apply the wireless location technology and route planning on designing the display panel of the removable vending machine.
会议名称：
19th Annual Conference and 8th International Conference of Chinese Society of Micro/Nano Technology (CSMNT)
会议时间：
OCT 26-29, 2017
会议地点：
Dalian, PEOPLES R CHINA
会议主办单位：
[Hao, R.;Yu, H. J.;Zhou, W.;Peng, B.;Guo, J.] Univ Elect Sci & Technol China, Dept Mechatron Engn, Ctr Robot, Chengdu, Sichuan, Peoples R China.^[Guo, J.] Univ South China, Sch Mech Engn, Hengyang 421000, Hunan, Peoples R China.
会议论文集名称：
Journal of Physics Conference Series
摘要：
Packaging process had been studied on capacitance accelerometer. The silicon-glass bonding process had been adopted on sensor chip and glass, and sensor chip and glass was adhered on ceramic substrate, the three-layer structure was curved due to the thermal mismatch, the slice error of glass lead to asymmetrical curve of sensor chip. Thus, the sensitive mass of accelerometer deviated along the sensitive direction, which was caused in zero offset drift. It was meaningful to confirm the influence of slice error of glass, the simulation results showed that the zero output drift was 12.3x10-3 m/s2 when the deviation was 40 mu m.
摘要：
The 3D micro/nano electroporation for transfection has become a powerful biological cell research technique with the development of micro-nano manufacturing technology. The micro channels connected the cells with transfection reagents on the chip were important to the transmemnbrane potentical, which directly influences the electroporation efficiency. In this study, a two-dimensional model for electroporation of cells was designed to address the effects of channels' sizes and number on transmembrane potential. The simulation results indicated that the transmembrane potential increased with increasing size of channels' entrances. Moreover, compared with single channel entrance, the transmembrane potential was higher when the cells located at multiple channels entrances. These results suggest that it IS required to develop higher micro manufacturing technology to create channels as we expected size.
摘要：
In this paper, a new type of magnetic wheeled wall climbing robot is proposed in order to overcome the shortcomings of existing climbing robots. It takes advantage of SOLIDWORKS to establish a three-dimensional model. Also, the paper introduces the design idea of wall-climbing robot, uses MATLAB to do the numerical analysis and make magnetic simulation through ANSOFT MAXWELL.
作者机构：
[Shen, Jiang; Tang, Xiaohuan; Wang, Xiangjiang] Univ South China, Sch Mech Engn, Hengyang, Hunan, Peoples R China.
会议名称：
2016年土木、建筑与环境工程国际学术会议
会议时间：
2016-11-04
会议地点：
中国台湾台北
会议主办单位：
[Wang, Xiangjiang;Tang, Xiaohuan;Shen, Jiang] Univ South China, Sch Mech Engn, Hengyang, Hunan, Peoples R China.
会议论文集名称：
Proceedings of The 2016 International Conference on Civil, Architecture and Environmental Engineering（Vol.1）
摘要：
In order to solve the problem of the interval in the slider crank mechanism and improve its position accuracy, this article will establish a simplified model of the slider crank mechanism based on its simple mechanism, and make full use of the sensor to measure the movement parameters of each component of the slider crank mechanism. And then, in this article, the system parameter of the slider crank mechanism is identified via the parameter identification method, and finally the slider crank mechanism with interval will be set up and analyzed through the simulation experiment. The comparison results show that the model building via the parameter identification possesses high accuracy and a simple modelling process. Meanwhile, this kind of modelling method can afford a new thinking for the modelling of the complex and non-linear electromechanical system.
会议名称：
International Conference on Fluid Mechanics and Industrial Applications (FMIA)
会议时间：
OCT 21-22, 2017
会议地点：
Taiyuan, PEOPLES R CHINA
会议主办单位：
[Deng, Jian;Lei, Zeyong;Zhong, Lin] Nan Hua Univ, Sch Mech Engn, Hengyang, Peoples R China.
会议论文集名称：
Journal of Physics Conference Series
摘要：
Uranium hydrometallurgy fixed bed is used to separate and extracting uranium compounds from the leaching of uranium ore. It is a very important equipment in the process of uranium purification. The distribution of the internal flow field of uranium hydrometallurgy fixed bed has great effect on the running efficiency of fixed bed. In this paper, on the basis of fluid mechanics, computational fluid dynamics software Fluent is used to numerical simulation for resin adsorption process in axial flow uranium hydrometallurgy, fixed bed that the diameter is 1600 mm and the height is 6800 mm and to research internal flow field distribution of the fixed bed. The results shows that the fluid distribution in the fixed bed is uneven in the process of adsorbent resin adsorption. The groove shunt filter plate at the exit is a powerful measure to realize the uniform distribution of fluid in the resin layer of fixed bed.
会议名称：
2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
关键词：
3D Printers;FDM technology;Silk Material Replacement Device
摘要：
The overall design of the mechanical structure of the color 3D printer is put forward, and a new spliced print head structure is proposed. The utility model relates to a splicing type print head, which is composed of a print head which is loaded with different colors of silk material and a movable fixing device of a spray head. The print head spliced through a nozzle fixing device of an elastic spring mechanism locking positioning clamping space forming and the print head, the splicing type print head in the two part of the implementation of the print head movement path splicing preset, and then through the automatic replacement process of printing head fixing device and mobile splicing nozzle with different colors from to achieve different color silk. An automatic replacement device of the wire material is designed. By testing the automatic replacement device of the wire material, it is proved that the automatic replacement of silk material in line with color 3D printing in the automatic replacement of silk material requirements.
摘要：
Cavitation nozzle is the core component of cavitation generator. It promotes cavitation by its internal special structure, producing bubble and improving the impact force of jet. The structural characteristics directly affect the quality of the cavitation jet. Therefore, the study of internal structure of nozzle is helpful to improve the performance of nozzle. Based on CFD software, taking the Helmholtz nozzle as the object, the numerical simulations of internal flow field and external flow field in nozzle with different structure have been carried out. At the same time, the influence law of cavitation jet by various parameters and structural optimization of Helmholtz cavitation nozzle has been analyzed.
摘要：
A new type of crawler-type magnetic adsorption wall-climbing robot for derusting of ships was designed. The three-dimensional model of the robot, the adsorption device and the cleaning device, were established by SOLIDWORKS, and the static force model was established according to the actual working condition. Then, two kinds of common overturning risks of the wall-climbing robot were analyzed and the numerical simulation carried out by MATLAB software was used to obtain the minimum adsorption force. At last, the magnetic adsorption unit was simulated by ANSOFT MAXWELL, and the vector magnetic density is obtained, verifying the rationality of the design of the adsorption unit.
期刊：
Proceedings of the 2016 5th International Conference on Measurement, Instrumentation and Automation (ICMIA 2016),2016年138:19-25 ISSN：1951-6851
通讯作者：
Tang De Wen
作者机构：
[Lv Xi Jian; Zhao Ruilan; Tang De Wen; Liu Jun] Univ South China, Sch Mech Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Tang De Wen] U;Univ South China, Sch Mech Engn, Hengyang 421001, Hunan, Peoples R China.
会议名称：
2016 5th International Conference on Measurement, Instrumentation and Automation (ICMIA 2016)
关键词：
Milling force;milling temperature;finite element model
摘要：
Both milling force and temperature are the key influence factor of thin-wall part deformation. Therefore, to study the influence of milling parameters including milling speed, feed per tooth, radial depth of cutting and axial depth of cutting on milling force and temperature in the cutting process,the finite element model of high speed milling thin-wall SDK11 hardened steel part is developed by DEFORM-3D based on the modified J-C material model. The results indicate that milling force increases with an increase of milling speed until milling speed beyond 400m/min began to decline, and milling temperature increases with an increase of cutting speed. Milling force rises with fluctuations with an increase of milling speed, and milling temperature increases with an increase of milling feed, But it appears a decline trend from milling feed of 0.02mm/z to 0.025mm/z. Both milling force and temperature are increasing with the radial and axial depth of cut increasing. but milling force decline and milling temperature increase rapidly from axial depth of 0.7mm to 0.8mm.
