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关键词

下肢机器人;捕获点;步态相位;人机系统平衡 1

人工肌肉;智能材料;介电弹性体(DE);聚氯乙烯(PVC)凝胶;执行器;可穿戴式人体助力;运动康复 1

决策支持 1

决策支持系统(DSS) 1

功能恢复 1

地理信息系统(GIS) 1

工程移民 1

康复 1

智慧医疗;人工智能;手术机器人;康复和护理机器人;辅助远程医疗 中 1

湿地 1

生态入侵 1

生态恢复 1

眼部疾病 1

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红树林 1

视觉 1

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Optimum design and preliminary experiments of a novel parallel end traction apparatus for upper-limb rehabilitation

《机械工程前沿(英文)》 2021年 第16卷 第4期   页码 726-746 doi: 10.1007/s11465-021-0651-5

摘要: Robot-assisted technology has been increasingly employed in the therapy of post stroke patients to deliver high-quality treatment and alleviate therapists’ burden. This paper introduces a novel parallel end traction apparatus (PETA) to supplement equipment selection. Considering the appearance and performance of the PETA, two types of special five-bar linkage mechanisms are selected as the potential configurations of the actuation execution unit because of their compact arrangement and parallel structure. Kinematic analysis of each mechanism, i.e., position solutions and Jacobian matrix, is carried out. Subsequently, a comparative study between the two mechanisms is conducted. In the established source of nondimensional parameter synthesis, the singularity, maximum continuous workspace, and performance variation trends are analyzed. Based on the evaluation results, the final scheme with determined configuration and corresponding near-optimized nondimensional parameters is obtained. Then, a prototype is constructed. By adding a lockable translational degree of freedom in the vertical direction, the PETA can provide 2D planar exercise and 3D spatial exercise. Finally, a control system is developed for passive exercise mode based on the derived inverse position solution, and preliminary experiments are performed to verify the applicability of the PETA.

关键词: parallel mechanism     upper-limb rehabilitation     singularity and workspace analyses     performance evaluation     optimum design    

Evaluation of aquatic rehabilitation technologies for polluted urban rivers and the case study of the

Haifeng JIA, Nan DONG, Hongtao MA,

《环境科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 213-220 doi: 10.1007/s11783-010-0023-6

摘要: An index system for evaluation of technologies for urban river rehabilitation was proposed and discussed. The index system includes indicators of cost, resources, environmental improvement, and social effects. The calculation method for an objective value of each index based on its attributes and weights was presented. The Foshan Channel, which is a seriously polluted, black and malodorous urban river in Foshan City, China, was selected as a case study. The values of the attributes and the weights of the indices for the Foshan Channel were determined. The technologies for the rehabilitation of the Foshan Channel were evaluated based on this index system. Finally, a rehabilitation scheme for the Foshan Channel was proposed.

关键词: river rehabilitation     urban rivers     river pollution     multi-objective analysis     the Foshan Channel    

Review of human–robot coordination control for rehabilitation based on motor function evaluation

《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0684-4

摘要: As a wearable and intelligent system, a lower limb exoskeleton rehabilitation robot can provide auxiliary rehabilitation training for patients with lower limb walking impairment/loss and address the existing problem of insufficient medical resources. One of the main elements of such a human–robot coupling system is a control system to ensure human–robot coordination. This review aims to summarise the development of human–robot coordination control and the associated research achievements and provide insight into the research challenges in promoting innovative design in such control systems. The patients’ functional disorders and clinical rehabilitation needs regarding lower limbs are analysed in detail, forming the basis for the human–robot coordination of lower limb rehabilitation robots. Then, human–robot coordination is discussed in terms of three aspects: modelling, perception and control. Based on the reviewed research, the demand for robotic rehabilitation, modelling for human–robot coupling systems with new structures and assessment methods with different etiologies based on multi-mode sensors are discussed in detail, suggesting development directions of human–robot coordination and providing a reference for relevant research.

关键词: human–robot coupling     lower limb rehabilitation     exoskeleton robot     motor assessment     dynamical model     perception    

Design of active orthoses for a robotic gait rehabilitation system

A. C. VILLA-PARRA,L. BROCHE,D. DELISLE-RODRÍGUEZ,R. SAGARÓ,T. BASTOS,A. FRIZERA-NETO

《机械工程前沿(英文)》 2015年 第10卷 第3期   页码 242-254 doi: 10.1007/s11465-015-0350-1

摘要:

An active orthosis (AO) is a robotic device that assists both human gait and rehabilitation therapy. This work proposes portable AOs, one for the knee joint and another for the ankle joint. Both AOs will be used to complete a robotic system that improves gait rehabilitation. The requirements for actuator selection, the biomechanical considerations during the AO design, the finite element method, and a control approach based on electroencephalographic and surface electromyographic signals are reviewed. This work contributes to the design of AOs for users with foot drop and knee flexion impairment. However, the potential of the proposed AOs to be part of a robotic gait rehabilitation system that improves the quality of life of stroke survivors requires further investigation.

关键词: active orthosis     gait rehabilitation     electroencephalography     surface electromyography    

EEG-controlled functional electrical stimulation rehabilitation for chronic stroke: system design and

《医学前沿(英文)》 2021年 第15卷 第5期   页码 740-749 doi: 10.1007/s11684-020-0794-5

摘要: Stroke is one of the most serious diseases that threaten human life and health. It is a major cause of death and disability in the clinic. New strategies for motor rehabilitation after stroke are undergoing exploration. We aimed to develop a novel artificial neural rehabilitation system, which integrates brain--computer interface (BCI) and functional electrical stimulation (FES) technologies, for limb motor function recovery after stroke. We conducted clinical trials (including controlled trials) in 32 patients with chronic stroke. Patients were randomly divided into the BCI-FES group and the neuromuscular electrical stimulation (NMES) group. The changes in outcome measures during intervention were compared between groups, and the trends of ERD values based on EEG were analyzed for BCI-FES group. Results showed that the increase in Fugl Meyer Assessment of the Upper Extremity (FMA-UE) and Kendall Manual Muscle Testing (Kendall MMT) scores of the BCI-FES group was significantly higher than that in the sham group, which indicated the practicality and superiority of the BCI-FES system in clinical practice. The change in the laterality coefficient (LC) values based on μ-ERD (ΔLCm-ERD) had high significant positive correlation with the change in FMA-UE(r= 0.6093, P=0.012), which provides theoretical basis for exploring novel objective evaluation methods.

关键词: brain–computer interface     functional electrical stimulation     electroencephalogram     laterality coefficient     chronic stroke    

Analysis of cost effective pavement treatment and budget optimization for arterial roads in the city of Chattanooga

Mbakisya ONYANGO, Saliha Ammour MERABTI, Joseph OWINO, Ignatius FOMUNUNG, Weidong WU

《结构与土木工程前沿(英文)》 2018年 第12卷 第3期   页码 291-299 doi: 10.1007/s11709-017-0419-5

摘要:

Many transportation agencies lack sufficient funds to maintain and repair roads, which results into increased pavement maintenance cost. Pavement Management System (PMS) has demonstrated to be an essential tool for proper management of infrastructure and proper utilization of available funds. The University of Tennessee at Chattanooga utilized Micropaver software as PMS tool to conduct a pavement management analysis of principal arterials in the City of Chattanooga. The study used the City of Chattanooga pavement database to create the current and future pavement conditions. Maintenance and repair (M&R) planning analysis was also performed in order to determine the most cost-effective treatment and suggest the optimum utilization of funds for the city. An analysis of five budget scenarios was conducted for a five-year plan using the critical pavement condition index (PCI) method (ASTM D6433). Results show that the backlog elimination budget would be the best scenario because it increases the pavement condition and eliminates the backlog of major maintenance and repairs over the five-year period. The unlimited budget seems though ideal, it does not improve pavement condition. Maintaining current condition and limited budget scenarios would increase both the backlog and the total cost of maintenance and repairs over the analysis period.

关键词: PMS     Micropaver     pavement budget     maintenance     rehabilitation    

工程移民决策支持研究

王家耀,姚松龄

《中国工程科学》 2000年 第2卷 第9期   页码 80-84

摘要:

工程移民指工程建设引起的非自愿的搬迁安置活动,工程移民决策包括规划决策和管理决策,这在国内外都是一个新课题,基于GIS的工程移民DSS是实施科学决策的有效手段,文章对工程移民决策支持的理论、方法进行了探讨,并结合万家寨工程移民决策支持进行了试验。

关键词: 工程移民     决策支持     地理信息系统(GIS)     决策支持系统(DSS)    

Ecological assessment of lakeshore wetland rehabilitation on eastern route of South-to-North Water Transfer

ZHANG Jian, Lu Yifeng, JING Yuming, ZHANG Bo, ZHANG Chenglu, MENG Fei, ZHANG Huayong

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 306-310 doi: 10.1007/s11783-008-0057-1

摘要: To evaluate the ecological effects of lakeshore wetland rehabilitation on the eastern route of the South-to-North Water Transfer Project, species composition, coverage, height, and biomass of wetland communities at 22 sites of the study area on the shore of Nansi Lake in April and May 2007 were investigated. The wetlands under investigation were divided into platform fields, transition zones, and shallow water zones according to differences in elevations, water levels, and human activities. The species richness index, Shannon-Wiener index, Simpson index, and Pielou Evenness index were adopted to delineate and discuss the ecological effects of lakeshore wetland rehabilitation in 22 quadrates. Results showed that the species richness of the wetland areas after 2 years’ rehabilitation amounted to 47 of 24 families, higher than 25 of 20 families in areas without rehabilitation. The biodiversity index and abundance index of rehabilitated areas were also higher than those of platform fields and fish ponds where there was no rehabilitation. In addition, the Shannon-Wiener index, Simpson index, and community evenness index of platform fields in rehabilitated wetland areas were 1.619, 0.745, and 0.860, respectively, higher than those of the platform fields before rehabilitating. The results suggested that the constructed lakeshore wetland played an important role in protecting the diversity of species.

关键词: community     South-to-North     Shannon-Wiener     Evenness     addition    

中国红树林湿地与生态工程的几个问题

林鹏

《中国工程科学》 2003年 第5卷 第6期   页码 33-38

摘要:

简述红树林湿地在滨海湿地中的地位,红树林的种类和分布,红树林类群的界定,湿地保护中的重要性,红树林的生态、社会和经济价值。着重讨论中国红树林生态工程中面临的四个问题:1.红树林生态恢复的关键是宜林地的选择标准;2.红树林区海堤修复工程的生态模式;3.防止引种时带进外来有害物种的生态入侵;4.要以最小的资源环境代价,谋求经济社会最大限度的发展,从而促进红树林湿地的保护与发展。

关键词: 红树林     湿地     生态恢复     生态入侵    

Multi-camera systems for rehabilitation therapies: a study of the precision of MicrosoftKinect sensors

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

《信息与电子工程前沿(英文)》 2016年 第17卷 第4期   页码 348-364 doi: 10.1631/FITEE.1500347

摘要: This paper seeks to determine how the overlap of several infrared beams affects the tracked position of the user, depending on the angle of incidence of light, distance to the target, distance between sensors, and the number of capture devices used. We also try to show that under ideal conditions using several Kinect sensors increases the precision of the data collected. The results obtained can be used in the design of telerehabilitation environments in which several RGB-D cameras are needed to improve precision or increase the tracking range. A numerical analysis of the results is included and comparisons are made with the results of other studies. Finally, we describe a system that implements intelligent methods for the rehabilitation of patients based on the results of the tests carried out.

关键词: Kinect sensor     Rehabilitation system     Capture precision     Multi-camera system    

A virtual reality system for arm and hand rehabilitation

Zhiqiang LUO, Chee Kian LIM, I-Ming CHEN, Song Huat YEO

《机械工程前沿(英文)》 2011年 第6卷 第1期   页码 23-32 doi: 10.1007/s11465-011-0202-6

摘要:

This paper presents a virtual reality (VR) system for upper limb rehabilitation. The system incorporates two motion track components, the Arm Suit and the Smart Glove which are composed of a range of the optical linear encoders (OLE) and the inertial measurement units (IMU), and two interactive practice applications designed for driving users to perform the required functional and non-functional motor recovery tasks. We describe the technique details about the two motion track components and the rational to design two practice applications. The experiment results show that, compared with the marker-based tracking system, the Arm Suit can accurately track the elbow and wrist positions. The repeatability of the Smart Glove on measuring the five fingers’ movement can be satisfied. Given the low cost, high accuracy and easy installation, the system thus promises to be a valuable complement to conventional therapeutic programs offered in rehabilitation clinics and at home.

关键词: motion tracking     rehabilitation     optical linear encoder (OLE)     virtual reality    

Current state and future perspectives of sewer networks in urban China

Dong Huang, Xiuhong Liu, Songzhu Jiang, Hongchen Wang, Junyan Wang, Yuankai Zhang

《环境科学与工程前沿(英文)》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1023-1

摘要: Chinese authorities and the public have largely ignored sewer networks; however, various problems are emerging nationwide with the increase construction of new sewers. The current state of sewer network construction, administration, and maintenance in China is comprehensively reviewed in this study. Serving about 444 million people, 511,200 km of sewer lines are located in urban areas. In 2014, $7 billion was invested in sewer network construction. However, both the sewer pervasion rate and the per capita sewer length were significantly lower than those in developed countries. Sewer administrative agencies in local governments are uncoordinated. Laws, regulations, and standards are incomplete, and some practices are unscientific. The future situation of sewer maintenance is extremely grim because sewer corrosion control measures have not been launched. Moreover, inspection and rehabilitation chiefly rely on traditional approaches. In contrast, the overall market share of innovative technologies is very low owing to high cost, funds shortage, and technical limitations. Approaches such as liner inversion cured-in-place pipe, pull-in ultraviolet light cured liners, and spiral wound lining are applied mostly in economically developed regions. According to status and problem analyses, China’s top priority will be to conduct aggressive maintenance work in sewer networks in the future. New technical route, corrosion control - periodic visualized inspection - trenchless rehabilitation, could be the best option for future sewer maintenance in China. Instructions and opportunities for applying this technical route are discussed in detail in this study. Finally, additional factors in the development of sewer networks in China are suggested.

关键词: Sewer network     China     Management     Sewer corrosion     Sewer inspection     Trenchless rehabilitation    

视觉假体:技术和社会经济挑战 Perspective

John B. Troy

《工程(英文)》 2015年 第1卷 第3期   页码 288-291 doi: 10.15302/J-ENG-2015080

摘要:

视觉假体目前已经进入临床市场。最初,视觉假体用来治疗因视网膜色素变性(RP) 导致失明的患者。2015年7月下旬, 视网膜假体首次用于治疗干性年龄相关性黄斑变性。视网膜假体适用于治疗光感受器细胞受损而其他大部分视网膜神经元完好的疾病。而对视网膜输出功能完全丧失的眼部疾病,则需要植入与视觉中枢进行接口的假体类型。目前正在研发的中枢视觉假体的代表是视皮层假体。本文探讨了视觉假体所面临的技术方面和社会经济方面的挑战。

关键词: 神经假体     视觉     眼部疾病     功能恢复     康复    

Several issues to be considered for long-term better behavior of concrete gravity dams

Jinsheng JIA,

《结构与土木工程前沿(英文)》 2010年 第4卷 第1期   页码 40-46 doi: 10.1007/s11709-010-0006-5

摘要: Along with economic, social quick development and urbanization, dams and reservoirs are of strategic importance for flood control, water supply, electricity production, irrigation, etc., both for developed countries and for developing countries. Climate change is a new challenging issue to be considered which will speed up the development of hydropower in developing countries. More and more attention will be paid on the long-term better behavior of dams to guarantee the safety of the people involved and the better development of the world. There are about 50000 old dams in the world and a lot of them have been completed and operated for more than 50 years. However, how do we evaluate the dams’ safety? How do we make the decision to do rehabilitation work or to rebuild a new dam based on evaluation results? The life span and the real safety status of old dams becomes a challenging task for the dam society, especially for China because it has more than 6000 dams to be evaluated and rehabilitated within the next few years. Based on the investigation of the Fengman gravity dam, which is 91.7 m high, operated since 1943 and suffered uplift pressure, freeze and thaw problems, etc., discussions on the life span evaluation of old concrete gravity dams have been made. The reasonable coefficient of dam safety has been discussed. The social decision for the final choice after comprehensive studies has been introduced.

关键词: dam safety     economic life span     structural life span     environmental life span     rehabilitation     social decision    

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

《环境科学与工程前沿(英文)》 2011年 第5卷 第2期   页码 255-265 doi: 10.1007/s11783-010-0279-x

摘要: The water quality pollution and ecological deterioration in peri-urban rivers are usually serious under rapid urbanization and economic growth. In the study, a typical peri-urban river, Nansha River, was selected as a case study to discuss the scheme of peri-urban river rehabilitation. Located in the north part of the Beijing central region, the Nansha River watershed has been designated as an ecologically friendly garden-style area with high-tech industry parks and upscale residential zones. However, the Nansha River is currently seriously contaminated by urban and rural pollutants from both nonpoint sources (NPS) and point sources (PS). In this study, the pollutant loads from point sources and nonpoint sources in the Nansha River watershed were first assessed. A coupled model, derived from the Environmental Fluid Dynamics Code and Water Quality Analysis Simulation Program, was developed to simulate the hydrodynamics and water quality in the Nansha River. According to the characteristics of the typical peri-urban river, three different PS and NPS control scenarios were designed and examined by modeling analyses. Based on the results of the scenario analysis, a river rehabilitation scheme was recommended for implementation.

关键词: peri-urban river     coupled hydrodynamic-water quality modeling     scenario analysis     river rehabilitation    

标题 作者 时间 类型 操作

Optimum design and preliminary experiments of a novel parallel end traction apparatus for upper-limb rehabilitation

期刊论文

Evaluation of aquatic rehabilitation technologies for polluted urban rivers and the case study of the

Haifeng JIA, Nan DONG, Hongtao MA,

期刊论文

Review of human–robot coordination control for rehabilitation based on motor function evaluation

期刊论文

Design of active orthoses for a robotic gait rehabilitation system

A. C. VILLA-PARRA,L. BROCHE,D. DELISLE-RODRÍGUEZ,R. SAGARÓ,T. BASTOS,A. FRIZERA-NETO

期刊论文

EEG-controlled functional electrical stimulation rehabilitation for chronic stroke: system design and

期刊论文

Analysis of cost effective pavement treatment and budget optimization for arterial roads in the city of Chattanooga

Mbakisya ONYANGO, Saliha Ammour MERABTI, Joseph OWINO, Ignatius FOMUNUNG, Weidong WU

期刊论文

工程移民决策支持研究

王家耀,姚松龄

期刊论文

Ecological assessment of lakeshore wetland rehabilitation on eastern route of South-to-North Water Transfer

ZHANG Jian, Lu Yifeng, JING Yuming, ZHANG Bo, ZHANG Chenglu, MENG Fei, ZHANG Huayong

期刊论文

中国红树林湿地与生态工程的几个问题

林鹏

期刊论文

Multi-camera systems for rehabilitation therapies: a study of the precision of MicrosoftKinect sensors

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

期刊论文

A virtual reality system for arm and hand rehabilitation

Zhiqiang LUO, Chee Kian LIM, I-Ming CHEN, Song Huat YEO

期刊论文

Current state and future perspectives of sewer networks in urban China

Dong Huang, Xiuhong Liu, Songzhu Jiang, Hongchen Wang, Junyan Wang, Yuankai Zhang

期刊论文

视觉假体:技术和社会经济挑战

John B. Troy

期刊论文

Several issues to be considered for long-term better behavior of concrete gravity dams

Jinsheng JIA,

期刊论文

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water quality model

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

期刊论文