A Research on Simulated Robot football Match

JinPeng Wang,XueHeng Tao,Xin Zhao,Xiao Liang 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-

The robot football is a kind of artificial intelligence system based on the un determination system. It gathers new advanced techniques, amusement and game together, thus arousing widespread attention and profound interests. In a simulated robot football match, cooperation of robots as a whole and attack or defense in some certain areas on the field become the key to influence the success of the match. Simulation software of Delphi, VC++6.0 can be used in simulation, this paper attempts introduce the robot football match, taking VC++6.0 as an example.

Full-state Constraints-based Neuroadaptive Finite-time Control for Induction Motor Drive Systems with Iron Losses

Chen Song,Jinpeng Yu,Lin Zhao,Yumei Ma 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2

This paper proposes a dynamic surface control-based neuroadaptive finite-time control method for induction motors (IMs) with full-state constraints and iron losses. Firstly, the barrier Lyapunov function is introduced to constrain the state variables of IMs, which ensures that the rotor angular velocity and stator current of motor are always in the given range. Secondly, the neural networks (NNs) and dynamic surface control technology are applied to approximate the unknown nonlinear functions and solve the “complexity of differentiation” problem, respectively. Then the finite-time control technology is utilized to accelerate the response speed of the system and realize the fast and effective tracking of the desired signal. At last, the effectiveness of the method is illustrated by simulation results.

A wound-friendly antibacterial hyaluronic acid dressing with on-demand removability for infected wound healing

Datao Hu,Jinpeng Wen,Xinxin Zhao,Kailai Liu,Yuchen Zhang,Yizhuo Bu,Ke Wang 한국생체재료학회 2023 생체재료학회지 Vol.27 No.00

Background Antibacterial activity and on-demand removability are key characteristics governing the effectiveness of clinic wound dressing. However, the excellent tissue adhesion of new dressings is often overemphasized without a detailed discussion of dressing replacement. Besides, the inherent antibacterial ability of dressings is beneficial for promoting the healing of infected wound. Therefore, we rationally design an injectable antibacterial wound dressing with on-demand removability to accelerate infected wound healing. Method We design this wound dressing with a simple and feasible method based on the electrostatic self-assembly of hyaluronic acid and ε-polylysine. We investigated the efficacy of this dressing in terms of its microtopography, rheology, self-healing performance, adhesive ability, antimicrobial, hemostatic, on-demand removal properties, and wound healing promotion through various tests. Results The prepared dressing possesses injectability, self-healing ability and antibacterial activity, showing NaCl-triggered on-demand dissolution due to the disruption of electrostatic interactions. When used as dressings for healing full-thickness wounds, it could effectively accelerate wound healing by killing bacteria, downregulating inflammation, promoting collagen deposition, enhancing keratinocyte migration and angiogenesis due to its excellent adhesion ability, favorable hemostatic property, and potent antibacterial performance. Conclusion All results indicate that this is a simple and practical dressing for clinical application. This strategy provides a novel idea for developing on-demand removal dressings with antibacterial and injectable properties.

Experimental Study on Instant Grouting with Formwork for Tunnels

Zhenliang Zhou,Zhongsheng Tan,Jinpeng Zhao,Zikai Dong,Dekun Kong,Zonglin Li 대한토목학회 2022 KSCE JOURNAL OF CIVIL ENGINEERING Vol.26 No.1

Voids between primary support and secondary lining of existing tunnels pose a serious threat to safety and have become a key challenge for tunnel engineering. Due to the poor bonding performance between concrete slurry backfill and lining concrete, the integrity of supporting structures cannot be guaranteed. In recent years, vault grouting with formwork has proved to be effective in solving this problem. However, few studies have focused on the selection of grouting materials and associated grouting process parameters. In this paper, a slight-expanding concrete slurry is selected as the grouting material. The early strength growth trendof the slight-expanding slurry is explored via laboratory tests. The compatibility of the slight-expanding slurry and the lining concrete is analyzed by comparing the slump, expanding diameter, water retention and compressive strength. Bonding-body specimens were fabricated using a mold developed for this work. Furthermore, we compare the compressive strength and failure mode in order to investigate the bonding properties between the sight-expanding slurry and lining concrete at different grouting intervals and pressures. A reasonable set of operational parameters is subsequently proposed. Finally, field tests undertaken in an expressway tunnel in south China are performed in order to determine the impact of grouting with formwork on tunnel lining, while the grouting effect at the vault is evaluated using a ground penetrating radar. The slight-expanding slurry exhibited a high early strength and rapid hardening. Adding slight-expanding slurry to lining concrete at a volume ratio of 1:0.2 increased the slump, diameter and compressive strength by 13.4%, 15.6%, and 25.0%, respectively. When a grouting interval is less than 6 h, the pressure of grouting with formwork should be no less than 0.2 MPa, while for a grouting interval of 8 h, the grouting pressure should be no less than 0.4 MPa. The grouting pressure of 0.4 MPa exerts a limited effect on the existing secondary lining concrete, and the stress increment produced by grouting accounts for 6 − 17% of the total increment. The results presented can provide a reference for future tunnel construction.

Body action impacts the stability of nanomedicine tools in the drug delivery

Peng Zou,Wei Zhao,Jinpeng Dong,Yinyin Cao Techno-Press 2023 Advances in nano research Vol.14 No.3

Muscle strength and hypertrophy are equivalent when low-intensity resistance exercise is paired with blood flow restriction. This paper deals with the impact of physical exercise in the form of body activities on drug delivery using nanodevices. The body's actions impact the blood flow since the nano drug delivery devices are released into the bloodstream, and physical exercise and all the activities that change the blood flow influence the stability of these nanodevices. The nanodevice for the drug delivery purpose is modeled via nonuniform tube structures based on the high-order beam theory along with the nonlocal strain gradient theory. The nanodevice is made by a central nanomotor as well as two nanoblade in the form of truncated conical nanotubes carrying the nanomedicine. The mathematical simulation of rotating nanodevices is numerically solved, and the effect of various parameters on the stability of nanodevices has been studied in detail after the validation study.

Heat-resistant Poly(methyl methacrylate) Modified by Biomass Syringaldehyde Derivative: Preparation, Thermostability and Transparency

Xiaobin Gao,Song Mei,Xueyong Yong,Danyu Zhao,Jinpeng Bao,Jianping Deng 한국섬유공학회 2019 Fibers and polymers Vol.20 No.11

Poly(methyl methacrylate) (PMMA) has found a lot of practical uses, however, how to efficiently and costeffectivelyimprove its relatively low thermal properties remains as an intractable academic challenge. This article reports anovel strategy for improving heat-resistance of PMMA by using biomass syringaldehyde. Syringaldehyde methacrylate(SMA) was first synthesized and then used as comonomer to copolymerize with methyl methacrylate (MMA) through bulkpolymerization and solution polymerization. The copolymers can be obtained in high yield and demonstrate remarkablyimproved heat-resistance according to differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA) andderivative thermogravimetry analyses (DTG). Moreover, the modified PMMA still maintains good light transmittance invisible range. The study provides a new alternative for modifying PMMA, and the modified PMMA may find newapplications as heat-resistant polymeric material which cannot routinely achieved by PMMA itself. In addition, SMA as anew type of green heat-resistant modifier derived from renewable biomass syringaldehyde may have potential applications inheat-resistant modification of materials.