43 results on '"Chuandong Chen"'
Search Results
2. Chemically-induced active micro-nano bubbles assisting chemical mechanical polishing: Modeling and experiments
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Lei Xu, Kihong Park, Hong Lei, Pengzhan Liu, Eungchul Kim, Yeongkwang Cho, Taesung Kim, and Chuandong Chen
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micro-nano bubbles ,mixed lubrication ,material removal mechanism ,chemical mechanical polishing (CMP) ,modeling ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
Abstract The material loss caused by bubble collapse during the micro-nano bubbles auxiliary chemical mechanical polishing (CMP) process cannot be ignored. In this study, the material removal mechanism of cavitation in the polishing process was investigated in detail. Based on the mixed lubrication or thin film lubrication, bubble-wafer plastic deformation, spherical indentation theory, Johnson-Cook (J-C) constitutive model, and the assumption of periodic distribution of pad asperities, a new model suitable for micro-nano bubble auxiliary material removal in CMP was developed. The model integrates many parameters, including the reactant concentration, wafer hardness, polishing pad roughness, strain hardening, strain rate, micro-jet radius, and bubble radius. The model reflects the influence of active bubbles on material removal. A new and simple chemical reaction method was used to form a controllable number of micro-nano bubbles during the polishing process to assist in polishing silicon oxide wafers. The experimental results show that micro-nano bubbles can greatly increase the material removal rate (MRR) by about 400% and result in a lower surface roughness of 0.17 nm. The experimental results are consistent with the established model. In the process of verifying the model, a better understanding of the material removal mechanism involved in micro-nano bubbles in CMP was obtained.
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- 2023
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3. A Multi-Interval Homotopy Analysis Method Using Multi-Objective Optimization for Analytically Analyzing Chaotic Dynamics in Memristive Circuit
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Wei Hu, Haibo Luo, Chuandong Chen, and Rongshan Wei
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Analytical method ,chaotic dynamics ,multi-interval homotopy analysis method ,multi-objective optimization ,memristive circuit ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Memristive nonlinear system has drawn much attention in recent years, due to its rich and complex dynamical characteristics. However, there are few studies focus on the analytical analysis of this significant system. In this paper, a novel analytical method for analyzing the chaotic trajectories of memristive circuit is proposed. This method combines Homotopy Analysis Method (HAM) and Multi-objective Optimization (MO), i.e., the convergence control parameter of traditional HAM is divided into lots of subintervals in the time domain and respectively optimized by MO, for accurately solving the Ordinary Differential Equations describing memristive circuits. Hence, this method is named by MO-based multi-interval HAM (MO-MIHAM). By using MO-MIHAM, we accurately tracked the chaotic trajectories of the classical Memristor-Capacitor-Inductor (MCL) circuit and current memristive Band Pass Filter (BPF) chaotic circuit. Furthermore, based on the comparisons of errors between analytical approximate solutions derived from MO-MIHAM and solutions solved by traditional homotopy-based analytical methods and by Runge-Kutta-Fehlberg Method (RKF45) based numerical analysis, we found that, MO-MIHAM is characterized by higher approximation accuracy and computational performance (comprehensively considering the accuracy, computational complexity and execution time by a proposed Quality Factor) among the homotopy-based analytical methods, due to the optimized convergence control parameters in subintervals. Besides this major advantage, MO-MIHAM enables both qualitative and quantitative analyses and high freedom to choose homotopy-related terms for simplicity, and it is insensitive to convergence issues. Therefore, it is a powerful tool for exploratory studies for analytically analyzing chaotic dynamics in memristive circuit.
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- 2019
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4. Verification Method for Area Optimization of Mixed - Polarity Reed - Muller Logic Circuits
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Chuandong Chen, Bing Lin, and Michelle Zhu
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Engineering (General). Civil engineering (General) ,TA1-2040 ,Technology (General) ,T1-995 - Published
- 2018
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5. Test Stimuli Segmentation and Coding Method
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Chuandong Chen, Haibo Luo, and Yuxiang Chen
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design-for-test ,scan testing ,test stimuli ,test vectors ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Test vector coding and data transmission are the key technologies in the design-for-test of digital integrated circuits (IC). Existing parallel input methods of test stimuli can reduce test application times; however, they need to occupy multiple input ports. Thus, a novel method of test stimuli coding and data transmission was proposed to reduce the test application time of the test vectors and reduce the number of input ports required for the parallel input of test stimuli. This method was based on the segmentation of test stimuli. First, the test stimuli were evenly segmented into eight-bit wide. Second, the eight-bit data of each segment were encoded to the five-bit data according to the compatibility between the test data of each segment. The eight-bit test stimuli input can be completed in one or two clock cycles of automatic test equipment (ATE) by using the five input ports of the chip. The corresponding decoding circuit was added inside the netlist of the circuit to realize the rapid input of the test stimuli. Lastly, the ISCAS'89 benchmark circuit was used to conduct experiments, results of this coding method were then compared with those of the serial input method. Results show that the encoding method proposed in this study can save an average of 37% of the parallel input data width and 81.7% of the test stimuli input time. The proposed method in this study can also reduce the test application time and the cost of the IC test. The findings of this study can provide guidance for improving the scan testing method of digital IC.
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- 2018
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6. One-Time Roll-Forming Technology for High-Strength Steel Profiles with '日' Section
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Jicai Liang, Chuandong Chen, Ce Liang, Yi Li, Guangyi Chen, Xiaoming Li, and Aicheng Wang
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Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Roll forming is an important processing method for the production of commercial vehicle anticollision beams, and edge buckling is one of the common defects in roll-forming process. In this paper, the “日” shape section of roll forming is studied, and first the b-shaped section is formed by roll forming, and the internal weld line is automatically welded while forming; then the long side of the b-shaped section is bent into the “U” shape, and the external weld line is welded while forming. The profile is cut off and then bent at both ends to form a commercial vehicle anticollision beam. The ABAQUS finite element software is used to model and analyze the factors affecting the “edge buckling” defect of roll-formed products. This paper uses three factors and three levels of orthogonal simulation experiments to study the problem. The results show that the effect of the factors of flange height, sheet thickness, and forming speed on the formation of edge buckling is in the order of sheet thickness > flange height > forming speed. The edge buckling size of the vertical edge of b-shaped tube decreases with the increase of sheet thickness and increases with the increase of flange height.
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- 2019
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7. Springback Analysis of Flexible Stretch Bending of Multi-Point Roller Dies Process for Y-Profile under Different Process Parameters
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Chuandong Chen, Jicai Liang, Yi Li, Ce Liang, and Wenming Jin
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stretch bending ,multi-point bending ,springback ,process parameters ,numerical modelling ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Springback is a common defect caused by elastic recovery in the plastic forming process, which can cause the formed workpiece to deviate from the target shape. The purpose of this paper is to grasp the influence law of process parameters on springback deviation so as to optimize process parameters to reduce springback. Taking the Y-profile as the research object, the influence of process parameters such as horizontal bending radius, vertical bending radius, transition zone length, radius of roller dies, and wall thickness of the profile on springback deviation is discussed by numerical simulation. Additionally, the validity of the numerical simulation is verified through experiments. The springback law obtained by numerical simulation is applied to practical production, and the large-scale production of the Y-profile is realized.
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- 2021
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8. Efficient Global Optimization for Large Scaled Ordered Escape Routing.
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Chuandong Chen, Dishi Lin, Rongshan Wei, Qinghai Liu, Ziran Zhu, and Jianli Chen
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- 2023
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9. Disjoint-Path and Golden-Pin Based Irregular PCB Routing with Complex Constraints.
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Qinghai Liu, Qinfei Tang, Jiarui Chen, Chuandong Chen, Ziran Zhu, Huan He, Jianli Chen, and Yao-Wen Chang
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- 2023
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10. A Matching Based Escape Routing Algorithm with Variable Design Rules and Constraints.
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Qinghai Liu, Disi Lin, Chuandong Chen, Huan He, Jianli Chen, and Yao-Wen Chang
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- 2023
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11. Synthesis, characterization of CeO2@ZIF-8 composite abrasives and their chemical mechanical polishing behavior on glass substrate
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Hong Lei, Xiaoyue Yuan, Chuandong Chen, and Zefang Zhang
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Process Chemistry and Technology ,Materials Chemistry ,Ceramics and Composites ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials - Published
- 2023
12. Novel Verification Method for Timing Optimization Based on DPSO.
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Chuandong Chen, Rongshan Wei, Shaohao Wang, and Wei Hu
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- 2018
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13. Epidemiology of spinal cord injury in China: A systematic review of the chinese and english literature
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Chuandong Chen, Xu Qiao, Wei Liu, Christine Fekete, and Jan D. Reinhardt
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Male ,Adult ,China ,Neurology ,Incidence ,Accidents, Traffic ,Humans ,Female ,Neurology (clinical) ,General Medicine ,Middle Aged ,Spinal Cord Injuries ,Language - Abstract
Systematic review.We aimed to provide a comprehensive overview of the English and Chinese literature reporting epidemiological data on spinal cord injury (SCI) in China.3 English and 3 Chinese language electronic databases were searched from the earliest record to 15 March 2020. Sociodemographic characteristics, incidence rates, etiology and lesion characteristics, in-hospital mortality, and secondary health conditions and complications were extracted from included reports.A total of 51 studies were included, 32 in the Chinese language. Forty-seven studies were based on hospital records. Mean age of incident cases ranged from 34 to 55 years and male-to-female ratios ranged from 0.35:1 to 15.3:1. SCI incidence varied from 14.6 to 60.6 per million. Thirty-five studies reported only on traumatic SCI with traffic accidents, high falls, low falls and being hit by objects being the most common causes. Specific causes for non-traumatic SCI were poorly reported. Proportions with tetraplegia and complete injury ranged from 37.4% to 82.0% and 14.1% to 73.9%, respectively. Reported in-hospital mortality attributed to SCI varied from 1.1% to 18.4%. Leading cause of in-hospital mortality for acute SCI was respiratory problems; respiratory problems, urinary tract infections and pressure sores were the most common complications.Epidemiological data on SCI in China are only available for a limited number of provinces and mostly outdated. Updated data on incidence with accurate geographical information and etiology across all Chinese provinces are needed for targeted implementation of preventive strategies. Research on community outcomes needs to be developed in China.
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- 2022
14. SVIP reduces IGFBP-2 expression and inhibits glioblastoma progression via stabilizing PTEN
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Zixuan Wang, Xiaolong Qiao, Yinan Chen, Nan Peng, Chaoshi Niu, Yang Wang, Cong Li, Zengchun Hu, Caihua Zhang, and Chuandong Cheng
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 ,Cytology ,QH573-671 - Abstract
Abstract Glioblastoma (GBM) presents significant challenges due to its invasive nature and genetic heterogeneity. In this study, we investigated the impact of Small VCP/P97-Interacting Protein (SVIP) on GBM progression. Our results revealed elevated expression of Insulin-like Growth Factor Binding Protein 2 (IGFBP-2) and STIP1 homology and U-box containing protein 1 (STUB1), coupled with reduced SVIP levels in GBM samples. Notably, high IGFBP-2 expression correlated with poor prognosis. Mechanistically, SVIP competitively inhibited STUB1, selectively binding to VCP/p97, thereby reducing PTEN degradation. This SVIP-mediated regulation exerted influence on the PTEN/PI3K/AKT/mTOR pathway, leading to the suppression of GBM progression. Co-localization experiments demonstrated that SVIP hindered PTEN ubiquitination and degradation by outcompeting STUB1 for VCP/p97 binding. Moreover, SVIP overexpression resulted in reduced activation of AKT/mTOR signaling and facilitated autophagy. In vivo experiments using a GBM xenograft model substantiated the tumor-suppressive effects of SVIP, evident by suppressed tumor growth, decreased IGFBP-2 expression, and improved survival rates. Collectively, our findings underscore the functional significance of SVIP in GBM progression. By inhibiting STUB1 and stabilizing PTEN, SVIP modulates the expression of IGFBP-2 and attenuates the activation of the PI3K/AKT/mTOR pathway, thereby emerging as a promising therapeutic target for GBM treatment.
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- 2024
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15. Investigation of crease defect of L-profile in flexible stretch bending of multi-point roller die process using experimental and numerical methods
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Chuandong Chen, Jicai Liang, Yi Li, and Ce Liang
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Control and Systems Engineering ,Mechanical Engineering ,Industrial and Manufacturing Engineering ,Software ,Computer Science Applications - Published
- 2022
16. Influence of movement tracks on the forming quality of profiles fabricated by flexible stretch bending of multi-point roller dies technology
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Jicai Liang, Yi Li, Chuandong Chen, and Ce Liang
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Materials science ,Quality (physics) ,Movement (music) ,Mechanical Engineering ,Mechanical engineering ,Bending ,Industrial and Manufacturing Engineering ,Multi point - Abstract
In the flexible stretch bending of multi-point roller dies process, the deformation of workpiece is mainly driven by clamps. Therefore, the movement track of clamp has a great influence on the forming effect of workpiece. Y-profile, T-profile, and L-profile are taken as the research objects. Simulation and experiments are carried out with two different movement tracks. The influence of the movement tracks on shape error, springback error, and thickness variation of different profiles is discussed. The experimental results of the three profiles processed by the double-sided forming method are consistent with the simulation results, which proves the accuracy of the numerical simulation. The results show that the movement track has a great influence on shape error. Compared with double-sided forming, one-sided forming can effectively reduce springback error. The two different movement tracks have no obvious influence on thickness change.
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- 2021
17. Uncut interposed jejunum pouch, esophagus and residual stomach double anastomosis: An innovative method of digestive tract reconstruction following proximal gastrectomy
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JiaQing Gong, Xia Liu, GuangLan Wang, Wei Li, GuoDe Luo, Yan Lin, Bin Zhang, and ChuanDong Chen
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Surgery - Abstract
An innovative method of digestive tract reconstruction following proximal gastrectomy, the uncut interposed jejunum pouch, esophagus and residual stomach double anastomosis(Uncut-D), was established in recent years. In order to fully clarify the superiority of the procedure, this study has conducted a systematic analysis and thorough discussion.118 patients with adenocarcinoma of the esophagogastric junction who underwent proximal gastrectomy were enrolled in this study. According to the methods of digestive tract reconstruction, these patients were divided into three groups: Uncut-D(n = 43), esophagogastrostomy (EG, n = 36), jejunal interposition (JI, n = 39).The preoperative indicators, surgical complications and related indicators of postoperative quality of life were analyzed.There were no significant differences in preoperative data among all groups (P 0.05); The digestive tract reconstruction time in Uncut-D group was more than that in EG group, and less than that in JI group (P 0.05). The incidence of esophageal anastomotic stenosis in Uncut-D group was significantly lower than that in EG group (P 0.05); In Uncut-D group, the incidence of reflux esophagitis, postoperative nutrition index(PNI), weight recovery and Visick classification were significantly better than those in EG group (P 0.05), furthermore, the incidence of delayed gastric emptying,PNI and weight recovery were better than those in JI group (P 0.05).The Uncut-D procedure gave full play to jejunal continuity and the advantages of pouch, and played a valuable role in gastric and cardiac replacement, which significantly reduced long-term complications, improved postoperative nutritional status of patients and long-term quality of life.
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- 2022
18. Effect of discrete roller dies on the contour accuracy of profiles in multi-point flexible stretch-bending forming
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Jicai Liang, Ce Liang, Yi Li, and Chuandong Chen
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0209 industrial biotechnology ,Materials science ,business.product_category ,Computer simulation ,Bending (metalworking) ,business.industry ,Mechanical Engineering ,Process (computing) ,02 engineering and technology ,Structural engineering ,Deformation (meteorology) ,Industrial and Manufacturing Engineering ,Finite element method ,Computer Science Applications ,020901 industrial engineering & automation ,Control and Systems Engineering ,Die (manufacturing) ,business ,Focus (optics) ,Software ,Multi point - Abstract
Flexible stretch-bending of multi-point roller dies technology is a new three-dimensional forming technology for profiles. Compared with the traditional stretch-bending process, the three-dimensional deformation of the profile can be formed at one time, and the cost of the die is greatly reduced and the production efficiency is improved. The die is an important component of flexible stretch-bending of multi-point roller dies equipment. Discrete die is the focus of this paper. The finite element model of flexible stretch-bending of multi-point roller dies is established. Taking T-profile and L-profile as research objects, the effect of die arrangement on strain, shape error, thickness distribution, and springback error is studied. The non-contact area between profile and die is one of the important factors that affect the 3D deformation of profile. By comparing the numerical simulation results with the experimental results, the effect of the non-contact area length on the three-dimensional deformation of profile is analyzed. The results show that with the increase of the non-contact area length, the shape error of profile increases, the thickness of profile web becomes thinner more seriously, and the springback error of profile increases after unloading.
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- 2021
19. Clinical evaluation of resection of functional area gliomas guided by intraoperative 3.0 T MRI combined with functional MRI navigation
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Luoyi Tian, Nan Peng, Zhongrun Qian, Jinpeng Hu, Wei Cheng, Yanghua Xia, Chuandong Cheng, and Ying Ji
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Functional area ,Glioma ,Intraoperative magnetic resonance imaging ,Multimodal functional magnetic resonance imaging ,Neuronavigation ,Surgery ,RD1-811 - Abstract
Abstract Background In assessing the clinical utility and safety of 3.0 T intraoperative magnetic resonance imaging (iMRI) combined with multimodality functional MRI (fMRI) guidance in the resection of functional area gliomas, we conducted a study. Method Among 120 patients with newly diagnosed functional area gliomas who underwent surgical treatment, 60 were included in each group: the integrated group with iMRI and fMRI and the conventional navigation group. Between-group comparisons were made for the extent of resection (EOR), preoperative and postoperative activities of daily living based on the Karnofsky performance status, surgery duration, and postoperative intracranial infection rate. Results Compared to the conventional navigation group, the integrated navigation group with iMRI and fMRI exhibited significant improvements in tumor resection (complete resection rate: 85.0% vs. 60.0%, P = 0.006) and postoperative life self-care ability scores (Karnofsky score) (median ± interquartile range: 90 ± 25 vs. 80 ± 30, P = 0.013). Additionally, although the integrated navigation group with iMRI and fMRI required significantly longer surgeries than the conventional navigation group (mean ± standard deviation: 411.42 ± 126.4 min vs. 295.97 ± 96.48 min, P
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- 2024
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20. Unveiling the therapeutic potential of IHMT-337 in glioma treatment: targeting the EZH2-SLC12A5 axis
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Hongwei Zhang, Zixuan Wang, Xiaolong Qiao, Nan Peng, Jiaxing Wu, Yinan Chen, and Chuandong Cheng
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Therapeutics. Pharmacology ,RM1-950 ,Biochemistry ,QD415-436 - Abstract
Abstract Glioma is the most common malignant tumor of the central nervous system, with EZH2 playing a crucial regulatory role. This study further explores the abnormal expression of EZH2 and its mechanisms in regulating glioma progression. Additionally, it was found that IHMT-337 can potentially be a therapeutic agent for glioma. The prognosis, expression, and localization of EZH2 were determined using bioinformatics, IHC staining, Western blot (WB) analysis, and immunofluorescence (IF) localization. The effects of EZH2 on cell function were assessed using CCK-8 assays, Transwell assays, and wound healing assays. Public databases and RT-qPCR were utilized to identify downstream targets. The mechanisms regulating these downstream targets were elucidated using MS-PCR and WB analysis. The efficacy of IHMT-337 was demonstrated through IC50 measurements, WB analysis, and RT-qPCR. The effects of IHMT-337 on glioma cells in vitro were evaluated using Transwell assays, EdU incorporation assays, and flow cytometry. The potential of IHMT-337 as a treatment for glioma was assessed using a blood–brain barrier (BBB) model and an orthotopic glioma model. Our research confirms significantly elevated EZH2 expression in gliomas, correlating with patient prognosis. EZH2 facilitates glioma proliferation, migration, and invasion alongside promoting SLC12A5 DNA methylation. By regulating SLC12A5 expression, EZH2 activates the WNK1-OSR1-NKCC1 pathway, enhancing its interaction with ERM to promote glioma migration. IHMT-337 targets EZH2 in vitro to inhibit WNK1 activation, thereby suppressing glioma cell migration. Additionally, it inhibits cell proliferation and arrests the cell cycle. IHMT-337 has the potential to cross the BBB and has successfully inhibited glioma progression in vivo. This study expands our understanding of the EZH2-SLC12A5 axis in gliomas, laying a new foundation for the clinical translation of IHMT-337 and offering new insights for precision glioma therapy.
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- 2024
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21. Research on springback compensation method of 3D flexible stretch bending of multi-point roller dies
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Fei Teng, Ce Liang, Yi Li, Chuandong Chen, and Jicai Liang
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0209 industrial biotechnology ,business.product_category ,Bending (metalworking) ,business.industry ,Computer science ,Mechanical Engineering ,Process (computing) ,02 engineering and technology ,Bending ,Structural engineering ,Curvature ,Industrial and Manufacturing Engineering ,Computer Science Applications ,Compensation (engineering) ,020901 industrial engineering & automation ,Control and Systems Engineering ,Die (manufacturing) ,business ,Software ,Multi point - Abstract
Springback compensation is considered as the best method to reduce springback error. In view of the springback defect of 3D deformed workpiece, a springback compensation method based on variable compensation factor is proposed. This method can accelerate the convergence speed of iterative compensation. In this paper, the 3D flexible stretch bending of multi-point roller die technology (3D FSB-MPRD) is introduced firstly, and then, the principle of the springback compensation method based on variable compensation factor is explained. In order to improve the springback compensation accuracy of workpiece, the total springback compensation process is divided into horizontal bending springback compensation and vertical bending springback compensation. Taking the T-shaped profile with variable curvature as the research object, the die surface is optimized and the optimal springback compensation factor is obtained by using numerical simulation after multiple iterations. Finally, the results of springback compensation are compared with the desired shape. And the effectiveness of the springback compensation method based on variable compensation factor is verified by comparing the simulation results with the test results.
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- 2020
22. Effect of roller dies on springback law of profile for flexible 3D multi-point stretch bending
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Jicai Liang, Chuandong Chen, Ce Liang, and Yi Li
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0209 industrial biotechnology ,business.product_category ,Materials science ,Bending (metalworking) ,Computer simulation ,Mechanical Engineering ,Process (computing) ,02 engineering and technology ,Deformation (meteorology) ,Curvature ,Industrial and Manufacturing Engineering ,Computer Science Applications ,Processing methods ,020901 industrial engineering & automation ,Control and Systems Engineering ,Law ,Die (manufacturing) ,business ,Software ,Multi point - Abstract
With the increasing demand of the parts with multi-segment curvature, long length, and complex section shape, the required target shape is more and more difficult to meet. In this article, a flexible three-dimensional (3D) multi-point stretch bending processing method for a roller die is proposed, and a flexible 3D stretch bending equipment of a roller die is developed. With the application of flexible 3D stretch bending technology of roller dies, the complex 3D parts can be formed at one time with only two degrees of freedom. In order to better evaluate the springback deformation of 3D parts, the total springback process of the flexible 3D stretch bending parts of a roller die is divided into two parts: horizontal bending springback distance and vertical bending springback distance. The springback law of different length profiles is studied by numerical simulation and compared with the experiment. From the perspective of springback, this study analyzes the parts produced by the 3D FSBRD process and studies the influence of different process parameters on springback.
- Published
- 2020
23. Analytic Modeling for RRAM Based on Multistage Homotopy Analysis Method
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Haibo Luo, Wei Hu, Rongshan Wei, and Chuandong Chen
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Imagination ,State variable ,Artificial neural network ,Computer science ,Homotopy ,media_common.quotation_subject ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Computer Science Applications ,Resistive random-access memory ,Nonlinear system ,Convergence (routing) ,Electrical and Electronic Engineering ,0210 nano-technology ,Algorithm ,Homotopy analysis method ,media_common - Abstract
Resistive random access memory device (RRAM) has been widely used in various novel circuit systems, such as memory, artificial intelligence, and neural networks, due to its unique memory characteristics. However, there are very few studies focusing on analytic modeling of RRAM. In this article, modeling for solving analytic approximate solution to the state variable of RRAM, based on the proposed Multistage Homotopy Analysis Method (MuHAM), is proposed. Different from traditional HAM, the time span under consideration is divided into many subintervals, then the convergence control parameter in each subinterval is optimized to achieve high approximation accuracy. By simulating and comparing the obtained analytic solutions with solutions solved by other traditional homotopy-based modeling methodologies and by numerical analyses, we verified that MuHAM has higher Quality Factor (introduced to evaluate the model accuracy and computational cost comprehensively), hence improving the simulation efficiency. Besides the classical Hewlett-Packard (HP) RRAM, some current RRAMs are also verified. MuHAM also has the advantages of enabling both qualitative and quantitative analyses, and immunity to convergence issues. It is particularly suitable for the analytic modeling of the other novel memory devices having strong nonlinearity.
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- 2020
24. Explosion Behavior of Non-Uniform Methane/Air Mixture in an Obstructed Duct with Different Blockage Ratios
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Kai Zheng, Qifen Wu, Chuandong Chen, Zhixiang Xing, Yongmei Hao, and Minggao Yu
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General Energy ,Mechanical Engineering ,Building and Construction ,Electrical and Electronic Engineering ,Pollution ,Industrial and Manufacturing Engineering ,Civil and Structural Engineering - Published
- 2022
25. Enhancing conversion efficiency of crystalline silicon photovoltaic modules through luminescent down-shifting by using Eu3+-Zn2+complexes
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Zhongyi Zhang, Jianyong Ju, Xiaoting Qin, Huizhong Yan, Menglin Shen, Chuandong Chen, and Fan Na
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General Materials Science ,Condensed Matter Physics - Published
- 2022
26. A Multi-Interval Homotopy Analysis Method Using Multi-Objective Optimization for Analytically Analyzing Chaotic Dynamics in Memristive Circuit
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Haibo Luo, Wei Hu, Rongshan Wei, and Chuandong Chen
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chaotic dynamics ,General Computer Science ,Computer science ,Homotopy ,Numerical analysis ,multi-interval homotopy analysis method ,General Engineering ,Chaotic ,memristive circuit ,Analytical method ,Nonlinear system ,Computer Science::Emerging Technologies ,multi-objective optimization ,Ordinary differential equation ,Convergence (routing) ,Applied mathematics ,General Materials Science ,Time domain ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,lcsh:TK1-9971 ,Homotopy analysis method - Abstract
Memristive nonlinear system has drawn much attention in recent years, due to its rich and complex dynamical characteristics. However, there are few studies focus on the analytical analysis of this significant system. In this paper, a novel analytical method for analyzing the chaotic trajectories of memristive circuit is proposed. This method combines Homotopy Analysis Method (HAM) and Multi-objective Optimization (MO), i.e., the convergence control parameter of traditional HAM is divided into lots of subintervals in the time domain and respectively optimized by MO, for accurately solving the Ordinary Differential Equations describing memristive circuits. Hence, this method is named by MO-based multi-interval HAM (MO-MIHAM). By using MO-MIHAM, we accurately tracked the chaotic trajectories of the classical Memristor-Capacitor-Inductor (MCL) circuit and current memristive Band Pass Filter (BPF) chaotic circuit. Furthermore, based on the comparisons of errors between analytical approximate solutions derived from MO-MIHAM and solutions solved by traditional homotopy-based analytical methods and by Runge-Kutta-Fehlberg Method (RKF45) based numerical analysis, we found that, MO-MIHAM is characterized by higher approximation accuracy and computational performance (comprehensively considering the accuracy, computational complexity and execution time by a proposed Quality Factor) among the homotopy-based analytical methods, due to the optimized convergence control parameters in subintervals. Besides this major advantage, MO-MIHAM enables both qualitative and quantitative analyses and high freedom to choose homotopy-related terms for simplicity, and it is insensitive to convergence issues. Therefore, it is a powerful tool for exploratory studies for analytically analyzing chaotic dynamics in memristive circuit.
- Published
- 2019
27. Preparation of the Nanodiamond@SiO2 Abrasive and its Effect on the Polishing Performance of Zirconia Ceramics
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Ruyue Ding, Hong Lei, Chuandong Chen, and Zefang Zhang
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Electronic, Optical and Magnetic Materials - Abstract
For the purpose of achieving the industrial requirement of efficient and high precision polishing of zirconia ceramics, nanodiamond@SiO2 abrasives were synthesized by a simple method using tetraethyl orthosilicate (TEOS) as raw materials. As observed in the transmission electron microscopy results, the composite abrasives showed a homogeneous and dense silica coating layer. It was confirmed by Fourier transform infrared spectroscopy and X-ray diffraction spectroscopy that the composite abrasives have a core–shell structure with a diamond core and a silica shell. According to the Zeta potential analysis, the dispersion stability of composite particles was improved compared to that of the pure nanodiamond particles. The chemical mechanical polishing (CMP) experimental results show that the polishing performances of composite abrasives on zirconia ceramics are better than that of the pure nanodiamond abrasives. The material removal rate of the composite particles is 2.184 μm h−1, and the surface roughness of the polished zirconia ceramics is 1.055 nm, which was 140% higher and 89% lower than that of pure nanodiamond abrasives, respectively. Furthermore, the polishing mechanism was explored by X-ray photoelectron spectroscopy (XPS), friction coefficient meter and dynamic contact angle test.
- Published
- 2022
28. Health-Related Rehabilitation after the 2008 Great Wenchuan Earthquake in China: A Ten Year Retrospective Systematic Review
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Joseph Kimuli Balikuddembe, Xinglin Zeng, and Chuandong Chen
- Subjects
Adult ,Male ,Gerontology ,030506 rehabilitation ,China ,Adolescent ,Inclusion (disability rights) ,Wenchuan ,Health, Toxicology and Mutagenesis ,medicine.medical_treatment ,Psychological intervention ,lcsh:Medicine ,Review ,Stress Disorders, Post-Traumatic ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,systematic review ,Risk Factors ,Earthquakes ,medicine ,Humans ,030212 general & internal medicine ,Child ,Retrospective Studies ,Posttraumatic stress disorders ,Rehabilitation ,lcsh:R ,Public Health, Environmental and Occupational Health ,Social Support ,Health related ,Middle Aged ,Cross-Sectional Studies ,Systematic review ,Social ability ,health-related rehabilitation ,earthquake ,Sichuan ,Quality of Life ,Female ,0305 other medical science ,Psychology - Abstract
Being one of the world’s seismically hazard-prone countries, the People’s Republic of China (PRC) witnessed an 8.0-magnitude earthquake on May 12th 2008—which was reported as one of the most destructive disasters since its founding. Following this earthquake, rehabilitation was greatly required for survivors to enable them to achieve and maintain optimal independence; functioning; full physical, mental and social ability; inclusion; and participation in all aspects of life and environments. We conducted a systematic review based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to retrospectively identify, in five English databases/sources, the existing evidence about the Health-Related Rehabilitation (HRR) that was rendered to the survivors of the 2008 Wenchuan earthquake between 2008 and 2018. Only 11 studies out of 828 initial studies retrieved were included in our study and reported the survivors of the 2008 Wenchuan earthquake to have been aged between 10.5 and 55.7, and predominantly diagnosed with posttraumatic stress disorders. Their HRR was mainly premised on physical and physiological therapies, as well as traditional Chinese medicine and digital technologies. Although all HRR interventions used were reported to be effective, none was identified as much more effective than the others in the post-earthquake era —which calls for more robust research to build upon our systematic review.
- Published
- 2020
29. IMPROVED TEST STIMULUS SCAN-IN METHOD FOR INTEGRATED CIRCUITS
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Rongshan Wei, Yuxiang Chen, Haibo Luo, and Chuandong Chen
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Computer science ,law ,Design for testing ,General Engineering ,Benchmark (computing) ,Netlist ,Integrated circuit ,Input method ,Arithmetic ,Decoding methods ,Test (assessment) ,law.invention ,Electronic circuit - Abstract
Scan testing is the key technology in the design for test of integrated circuit. For existing scan testing methods, the scan-in for test stimuli requires many clock cycles, which is one of the main restrictions of scan testing. To shorten the scan testing time of an integrated circuit, a novel test stimulus scan-in method was proposed in this study. First, scan chains, test stimuli, and test responses were grouped according to a fixed data width. Second, logic XOR calculation results of test response and test stimuli were coded according to the bit width of each group. The corresponding decoding and control circuits were added in the netlist of the circuit, which achieved fast input of test stimuli. Finally, an experiment using ISCA89 and IWLS2005 benchmark test circuits was performed. Experimental results were compared with those that used a serial input method of test stimuli. Results demonstrate that the proposed method can save approximately 37.5% and 43.7% of test time in average when the width of each group are 4 bits and 8 bits, respectively. The proposed method can decrease the clock cycles of scan testing significantly and shorten the scan testing time of the integrated circuit. Conclusions obtained in this study provide significant references for improving the scan testing method of digital integrated circuit. Keywords: Scan testing, Design for test, Test response, Test stimulus
- Published
- 2018
30. A case report of bilateral lateral ventricle calcified pseudoneoplasm of the neuraxins
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Xiaolong Qiao, Yinan Chen, Ying Ji, Chaoshi Niu, and Chuandong Cheng
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CAPNON ,Imaging ,Pathology ,Operation ,Surgery ,RD1-811 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Calcifying pseudoneoplasm of the neuraxis (CAPNON) is indeed a rare central nervous system lesion that can occur in central nervous system (CNS). Due to its infrequency and limited literature reports, it is challenging to diagnose and manage CAPNON. Case presentation In this intriguing study, we embarked on a quest to uncover the story of a 16-year-old girl who experienced bothersome headaches. Through advanced imaging techniques like computed tomography (CT) and magnetic resonance imaging (MRI), we glimpsed a delicate calcified growth within the lateral ventricles’ posterior horn. Motivated by our unwavering commitment to solving mysteries, we embarked on a surgical journey that not only freed the young patient from her ailment but also shed light on the true nature of her puzzling adversary—a remarkable CAPNON. Conclusions For patients with CAPNON who have multiple or non-respectable lesions, the primary goal is to alleviate symptoms. After alleviating the symptoms with partial resection, close monitoring of any residual lesions is essential. If there is no evidence for disease progression, a strategy of continued close observation is appropriate.
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- 2023
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31. Memory Access Optimization of a Neural Network Accelerator Based on Memory Controller
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Guangyu Sun, Rongshan Wei, Chenjia Li, Minghua He, and Chuandong Chen
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Data stream ,Computer Networks and Communications ,Computer science ,memory access optimization ,lcsh:TK7800-8360 ,02 engineering and technology ,01 natural sciences ,law.invention ,Memory access pattern ,law ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Electrical and Electronic Engineering ,010302 applied physics ,Hardware architecture ,Dynamic random-access memory ,Hardware_MEMORYSTRUCTURES ,Artificial neural network ,business.industry ,lcsh:Electronics ,Memory controller ,Microarchitecture ,DRAM ,address mapping ,Hardware and Architecture ,Control and Systems Engineering ,Signal Processing ,memory controller ,Hardware acceleration ,020201 artificial intelligence & image processing ,business ,Computer hardware ,Dram - Abstract
Special accelerator architecture has achieved great success in processor architecture, and it is trending in computer architecture development. However, as the memory access pattern of an accelerator is relatively complicated, the memory access performance is relatively poor, limiting the overall performance improvement of hardware accelerators. Moreover, memory controllers for hardware accelerators have been scarcely researched. We consider that a special accelerator memory controller is essential for improving the memory access performance. To this end, we propose a dynamic random access memory (DRAM) memory controller called NNAMC for neural network accelerators, which monitors the memory access stream of an accelerator and transfers it to the optimal address mapping scheme bank based on the memory access characteristics. NNAMC includes a stream access prediction unit (SAPU) that analyzes the type of data stream accessed by the accelerator via hardware, and designs the address mapping for different banks using a bank partitioning model (BPM). The image mapping method and hardware architecture were analyzed in a practical neural network accelerator. In the experiment, NNAMC achieved significantly lower access latency of the hardware accelerator than the competing address mapping schemes, increased the row buffer hit ratio by 13.68% on average (up to 26.17%), reduced the system access latency by 26.3% on average (up to 37.68%), and lowered the hardware cost. In addition, we also confirmed that NNAMC efficiently adapted to different network parameters.
- Published
- 2021
32. Single-cell landscape of primary central nervous system diffuse large B-cell lymphoma
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Nianping Liu, Chen Jiang, Xinfeng Yao, Minghao Fang, Xiaolong Qiao, Lin Zhu, Zongcheng Yang, Xuyuan Gao, Ying Ji, Chaoshi Niu, Chuandong Cheng, Kun Qu, and Jun Lin
- Subjects
Cytology ,QH573-671 - Abstract
Abstract Understanding tumor heterogeneity and immune infiltrates within the tumor-immune microenvironment (TIME) is essential for the innovation of immunotherapies. Here, combining single-cell transcriptomics and chromatin accessibility sequencing, we profile the intratumor heterogeneity of malignant cells and immune properties of the TIME in primary central nervous system diffuse large B-cell lymphoma (PCNS DLBCL) patients. We demonstrate diverse malignant programs related to tumor-promoting pathways, cell cycle and B-cell immune response. By integrating data from independent systemic DLBCL and follicular lymphoma cohorts, we reveal a prosurvival program with aberrantly elevated RNA splicing activity that is uniquely associated with PCNS DLBCL. Moreover, a plasmablast-like program that recurs across PCNS/activated B-cell DLBCL predicts a worse prognosis. In addition, clonally expanded CD8 T cells in PCNS DLBCL undergo a transition from a pre-exhaustion-like state to exhaustion, and exhibit higher exhaustion signature scores than systemic DLBCL. Thus, our study sheds light on potential reasons for the poor prognosis of PCNS DLBCL patients, which will facilitate the development of targeted therapy.
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- 2023
- Full Text
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33. Novel Verification Method for Timing Optimization Based on DPSO
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Shao Hao Wang, Chuandong Chen, Wei Hu, and Rongshan Wei
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Article Subject ,Computer science ,020208 electrical & electronic engineering ,Swarm behaviour ,02 engineering and technology ,computer.software_genre ,Computer Graphics and Computer-Aided Design ,lcsh:QA75.5-76.95 ,020202 computer hardware & architecture ,Reduction (complexity) ,Logic synthesis ,Computer engineering ,Hardware and Architecture ,Logic gate ,0202 electrical engineering, electronic engineering, information engineering ,Benchmark (computing) ,Electronic design automation ,Compiler ,lcsh:Electronic computers. Computer science ,Electrical and Electronic Engineering ,computer ,Electronic circuit ,Hardware_LOGICDESIGN - Abstract
Timing optimization for logic circuits is one of the key steps in logic synthesis. Extant research data are mainly proposed based on various intelligence algorithms. Hence, they are neither comparable with timing optimization data collected by the mainstream electronic design automation (EDA) tool nor able to verify the superiority of intelligence algorithms to the EDA tool in terms of optimization ability. To address these shortcomings, a novel verification method is proposed in this study. First, a discrete particle swarm optimization (DPSO) algorithm was applied to optimize the timing of the mixed polarity Reed-Muller (MPRM) logic circuit. Second, the Design Compiler (DC) algorithm was used to optimize the timing of the same MPRM logic circuit through special settings and constraints. Finally, the timing optimization results of the two algorithms were compared based on MCNC benchmark circuits. The timing optimization results obtained using DPSO are compared with those obtained from DC, and DPSO demonstrates an average reduction of 9.7% in the timing delays of critical paths for a number of MCNC benchmark circuits. The proposed verification method directly ascertains whether the intelligence algorithm has a better timing optimization ability than DC.
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- 2018
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34. High-precision smart calibration system for temperature sensors
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Kui Ouyang, Rongshan Wei, Xiaotian Bao, Xiong Gao, and Chuandong Chen
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010302 applied physics ,Polynomial ,Artificial neural network ,Computer science ,Real-time computing ,Metals and Alloys ,Particle swarm optimization ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Least squares ,Standard deviation ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,0103 physical sciences ,Piecewise ,Calibration ,Electrical and Electronic Engineering ,0210 nano-technology ,Instrumentation ,Interpolation - Abstract
High precision and smart sensors make up an indispensable data entry for the Internet of Things technology. Nonetheless, conventional calibration algorithms mainly implemented on the software, such as least squares, polynomial fitting, and interpolation, exhibit limited calibration accuracy that does not reflect a real-time measurement of the sensors. The problem can be resolved with an MCU-based sensor calibration system proposed herein, which mainly employs particle swarm optimization (PSO)-back propagation (BP) neural network. The system firstly reads sensor data through I2C bus and then uses the BP neural network and PSO algorithm to automatically calibrate these data in real time. Sigmoid activation function was implemented via a piecewise polynomial fitting to create a trade-off between hardware resource and precision. A performance test conducted on temperature sensors showed a maximum error of 0.16 °C within the measurement range of −40–100 °C with three times the standard deviation (3 σ ) error of ±0.23 °C and overall linearity of 0.1143% after the calibration system was added as compared to the significantly higher error of ±0.63 °C without the calibration.
- Published
- 2019
35. A novel memristor-based amplitude modulator
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Wei Hu and Chuandong Chen
- Subjects
Engineering ,Hardware_MEMORYSTRUCTURES ,business.industry ,020208 electrical & electronic engineering ,020206 networking & telecommunications ,Topology (electrical circuits) ,02 engineering and technology ,Memristor ,Signal ,law.invention ,Amplitude modulation ,Computer Science::Hardware Architecture ,Computer Science::Emerging Technologies ,Amplitude ,law ,Component (UML) ,0202 electrical engineering, electronic engineering, information engineering ,Harmonic ,Electronic engineering ,business ,Frequency modulation - Abstract
This work proposes a novel amplitude modulation topology which including a recently discovered unique memory element — memristor. The circuit is validated by theoretical analyses and simulations that generating a standard amplitude modulation signal with no harmonic component. Our results support the feasibility that memristor can be applied to communication circuit.
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- 2016
36. Memristive multiplexed flip-flop for scan testing
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Chuandong Chen and Wei Hu
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Engineering ,business.industry ,Spice ,020206 networking & telecommunications ,Hardware_PERFORMANCEANDRELIABILITY ,02 engineering and technology ,Memristor ,Multiplexing ,Signal ,020202 computer hardware & architecture ,law.invention ,law ,Hardware_INTEGRATEDCIRCUITS ,0202 electrical engineering, electronic engineering, information engineering ,Electronic engineering ,Waveform ,business ,Flip-flop ,Computer hardware ,Hardware_LOGICDESIGN ,Test data - Abstract
Based on the model of memeristor fabricated at HP laboratory, a new multiplexed flip-flop is proposed which can support power-off mode for scan testing. Testing data can be stored in memristor during the power-off time. The analyzes are verified with SPICE simulation, signal waveforms show that the presented memristive multiplexed flip-flop meet the requirements for low-power scan testing.
- Published
- 2016
37. Improved test stimulus scan-in method for integrated circuits.
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Chuandong Chen, Haibo Luo, and Yuxiang Chen
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INTEGRATED circuits testing ,INTEGRATED circuit design ,AUTOMATIC test equipment ,DATA transmission systems ,DIGITAL technology - Abstract
Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
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38. Design of CCD control system based on dsPIC Digital Signal Controller
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Chuandong Chen, Xin Sun, and Bo Zhang
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Hardware_MEMORYSTRUCTURES ,business.industry ,Computer science ,Embedded system ,Control system ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Digital control ,Digital signal controller ,Image sensor ,business ,Computer hardware - Abstract
A CCD control system based on dsPIC Digital Signal Controller(DSC) which integrates two ADC modules is designed. As a result, the DSC device simplifies the circuit arrangement, reduces the cost and improves the compatibility of the CCD control system. CCD Work timing and ADC work timing are emphasized. The experimental results show the simplification and practicality through application of this CCD control system.
- Published
- 2008
39. Synergistic Effect of Statins and Abiraterone Acetate on the Growth Inhibition of Neuroblastoma via Targeting Androgen Receptor
- Author
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Zengchun Hu, Chuandong Cheng, Yue Wang, Tianrui Chen, Junhong Tu, Chaoshi Niu, Rong Xing, Yang Wang, and Yinghui Xu
- Subjects
statin ,abiraterone acetate ,synergistic effect ,androgen receptor ,neuroblastoma ,SREBP cleavage activating protein ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Neuroblastoma is the most common extracranial neuroendocrine tumor in childhood. Although many studies have tried to find effective treatments, there are still numerous limitations in current clinical targeted therapy. So, it is important to find new therapeutic targets and strategies from a new perspective. Our previous study reported that the androgen receptor (AR) promotes the growth of neuroblastoma in vitro and in vivo. Based on documentary investigation, we postulated that the AR–SCAP–SREBPs-CYP17/HMGCR axis may regulate cholesterol and androgens synthesis and form a positive enhancement loop promoting NB progression. Clinical samples and Oncomine database analysis proved the activation of AR–SCAP–SREBPs-CYP17/HMGCR axis in neuroblastoma. The combination of inhibitors of HMGCR (statins) and CYP17A1 (abiraterone acetate) showed synergistic effect that significantly inhibited the proliferation and migration with decreased expression of related genes detected in vitro and in vivo suggesting the dual-targeted therapy had the potential to inhibit the progression of neuroblastoma in spite of its MYCN status. This study provides new ideas for clinical treatment of neuroblastoma with efficacy and reduced toxicity.
- Published
- 2021
- Full Text
- View/download PDF
40. MSU-Net: Multi-Scale U-Net for 2D Medical Image Segmentation
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Run Su, Deyun Zhang, Jinhuai Liu, and Chuandong Cheng
- Subjects
multi-scale block ,U-net ,medical image segmentation ,convolution kernel ,receptive field ,Genetics ,QH426-470 - Abstract
Aiming at the limitation of the convolution kernel with a fixed receptive field and unknown prior to optimal network width in U-Net, multi-scale U-Net (MSU-Net) is proposed by us for medical image segmentation. First, multiple convolution sequence is used to extract more semantic features from the images. Second, the convolution kernel with different receptive fields is used to make features more diverse. The problem of unknown network width is alleviated by efficient integration of convolution kernel with different receptive fields. In addition, the multi-scale block is extended to other variants of the original U-Net to verify its universality. Five different medical image segmentation datasets are used to evaluate MSU-Net. A variety of imaging modalities are included in these datasets, such as electron microscopy, dermoscope, ultrasound, etc. Intersection over Union (IoU) of MSU-Net on each dataset are 0.771, 0.867, 0.708, 0.900, and 0.702, respectively. Experimental results show that MSU-Net achieves the best performance on different datasets. Our implementation is available at https://github.com/CN-zdy/MSU_Net.
- Published
- 2021
- Full Text
- View/download PDF
41. Design of CCD control system based on dsPIC Digital Signal Controller.
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Xin Sun, Bo Zhang, and Chuandong Chen
- Published
- 2008
- Full Text
- View/download PDF
42. Multimodal Glioma Image Segmentation Using Dual Encoder Structure and Channel Spatial Attention Block
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Run Su, Jinhuai Liu, Deyun Zhang, Chuandong Cheng, and Mingquan Ye
- Subjects
medical image fusion ,glioma segmentation ,fully convolutional neural networks ,DES ,CSAB ,F-S-Net ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Multimodal medical images provide significant amounts of complementary semantic information. Therefore, multimodal medical imaging has been widely used in the segmentation of gliomas through computational neural networks. However, inputting images from different sources directly to the network does not achieve the best segmentation effect. This paper describes a convolutional neural network called F-S-Net that fuses the information from multimodal medical images and uses the semantic information contained within these images for glioma segmentation. The architecture of F-S-Net is formed by cascading two sub-networks. The first sub-network projects the multimodal medical images into the same semantic space, which ensures they have the same semantic metric. The second sub-network uses a dual encoder structure (DES) and a channel spatial attention block (CSAB) to extract more detailed information and focus on the lesion area. DES and CSAB are integrated into U-Net architectures. A multimodal glioma dataset collected by Yijishan Hospital of Wannan Medical College is used to train and evaluate the network. F-S-Net is found to achieve a dice coefficient of 0.9052 and Jaccard similarity of 0.8280, outperforming several previous segmentation methods.
- Published
- 2020
- Full Text
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43. Research on Deep Learning Network Compression Method for Missile Borne Image
- Author
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Gao Yibo, Yang Chuandong, Chen Dong, Ling Chong
- Subjects
network model compression ,lightweight network ,missile borne image ,deep learning model ,algorithm transplantation ,Motor vehicles. Aeronautics. Astronautics ,TL1-4050 - Abstract
Aiming at the problem that the target recognition algorithm based on deep learning has the characteristics of complex network structure, large amount of parameters and high computation delay, which is difficult to directly apply to the missile-borne task, the network lightweight method are summarized. The advantages and respective characteristics of existing compression methods and lightweight networks are introduced, and the excellent algorithms in va-rious aspects are selected for comparison. Finally, combined with the development of deep learning in the field of target detection, the lightweight missile borne image target recognition algorithm is prospected.
- Published
- 2023
- Full Text
- View/download PDF
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