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Platelet-rich plasma: combinational treatment modalities for musculoskeletal conditions
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《医学前沿(英文)》 2018年 第12卷 第2期 页码 139-152 doi: 10.1007/s11684-017-0551-6
Current research on common musculoskeletal problems, including osteoarticular conditions, tendinopathies, and muscle injuries, focuses on regenerative translational medicine. Platelet-rich plasma therapies have emerged as a potential approach to enhance tissue repair and regeneration. Platelet-rich plasma application aims to provide supraphysiological concentrations of platelets and optionally leukocytes at injured/pathological tissues mimicking the initial stages of healing. However, the efficacy of platelet-rich plasma is controversial in chronic diseases because patients’ outcomes show partial improvements. Platelet-rich plasma can be customized to specific conditions by selecting the most appropriate formulation and timing for application or by combining platelet-rich plasma with synergistic or complementary treatments. To achieve this goal, researchers should identify and enhance the main mechanisms of healing. In this review, the interactions between platelet-rich plasma and healing mechanisms were addressed and research opportunities for customized treatment modalities were outlined. The development of combinational platelet-rich plasma treatments that can be used safely and effectively to manipulate healing mechanisms would be valuable and would provide insights into the processes involved in physiological healing and pathological failure.
关键词: regenerative medicine joint conditions muscle injuries platelet rich plasma tendinopathy healing mechanisms
EEG controlled neuromuscular electrical stimulation of the upper limb for stroke patients
Hock Guan TAN, Cheng Yap SHEE, Keng He KONG, Cuntai GUAN, Wei Tech ANG
《机械工程前沿(英文)》 2011年 第6卷 第1期 页码 71-81 doi: 10.1007/s11465-011-0207-1
This paper describes the Brain Computer Interface (BCI) system and the experiments to allow post-acute (<3 months) stroke patients to use electroencephalogram (EEG) to trigger neuromuscular electrical stimulation (NMES)-assisted extension of the wrist/fingers, which are essential pre-requisites for useful hand function. EEG was recorded while subjects performed motor imagery of their paretic limb, and then analyzed to determine the optimal frequency range within the -rhythm, with the greatest attenuation. Aided by visual feedback, subjects then trained to regulate their -rhythm EEG to operate the BCI to trigger NMES of the wrist/finger. 6 post-acute stroke patients successfully completed the training, with 4 able to learn to control and use the BCI to initiate NMES. This result is consistent with the reported BCI literacy rate of healthy subjects. Thereafter, without the loss of generality, the controller of the NMES is developed and is based on a model of the upper limb muscle (biceps/triceps) groups to determine the intensity of NMES required to flex or extend the forearm by a specific angle. The muscle model is based on a phenomenological approach, with parameters that are easily measured and conveniently implemented.
关键词: brain computer interface neuromuscular electrical stimulation stroke musculoskeletal modeling
Continuous modeling of soil morphology —thermomechanical behavior of embankment dams
Bettina ALBERS, Krzysztof WILMANSKI
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 11-23 doi: 10.1007/s11709-010-0081-7
关键词: thermomechanical modeling soil morphology saturation porosity
增材制造技术在假肢矫形器领域的应用 Review
王岩, 谭启涛, 蒲放, David Boone, 张明
《工程(英文)》 2020年 第6卷 第11期 页码 1258-1266 doi: 10.1016/j.eng.2020.07.019
假肢和矫形器是常见的用以代偿或补偿机体障碍人士功能需求的辅助设备。假肢矫形器的传统制造方法是一个耗时且劳动密集的过程,并存在严重的材料浪费问题。这些问题随着增材制造(AM)技术的发展和应用迎刃而解。人们已经进行了大量的理论和实践尝试,但将该技术真正用以制造假肢矫形器并满足临床需要还存在很大挑战。现存的挑战之一是缺乏一个集成AM技术和操作过程的系统框架。另外,如何基于该技术设计出同时满足功能性和舒适性需求的产品也是待解决的问题。本研究回顾了AM技术在制造假肢矫形器方面的应用现状,并对基于计算分析的产品优化设计方法和生物力学评估做了讨论。我们还设计了一个系统框架,该框架融合了从目标肢体的医学影像扫描到高适配性能产品的全过程。该过程还包含了用有限元方法进行产品优化设计和生物力学评估的环节。一个完善的系统框架能够高效地制造出满足生物力学性能需求的产品,从而大大促进AM技术在假肢矫形器领域中的应用。
关键词: 增材制造 肌肉骨骼系统生物力学 计算模型 假肢矫形器 3D打印
Flow and thermal modeling of liquid metal in expanded microchannel heat sink
《能源前沿(英文)》 页码 796-810 doi: 10.1007/s11708-023-0877-5
关键词: liquid metal cooling heat sink expanded microchannel flow and thermal modeling
Mohammad ALSHAYEB,Nasser KHASHAN,Sajjad MAHMOOD
《信息与电子工程前沿(英文)》 2016年 第17卷 第2期 页码 143-159 doi: 10.1631/FITEE.1500094
The unified modeling language (UML) is one of the most commonly used modeling languages in the software industry.It simplifies the complex process of design by providing a set of graphical notations, which helps express the objectoriented analysis and design of software projects. Although UML is applicable to different types of systems, domains, methods,and processes, it cannot express certain problem domain needs. Therefore, many extensions to UML have been proposed. In this paper, we propose a framework for integrating the UML extensions and then use the framework to propose an integrated unified modeling language-graphical (iUML-g) form. iUML-g integrates the existing UML extensions into one integrated form. This includes an integrated diagram for UML class, sequence, and use case diagrams. The proposed approach is evaluated using a case study. The proposed iUML-g is capable of modeling systems that use different domains.
关键词: Unified modeling language (UML) Integration Modeling System analysis and design
Computer modeling of crystal growth of silicon for solar cells
Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO
《能源前沿(英文)》 2011年 第5卷 第3期 页码 305-312 doi: 10.1007/s11708-011-0155-9
Lamb wave propagation modeling for structure health monitoring
Xiaoyue ZHANG, Shenfang YUAN, Tong HAO
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 326-331 doi: 10.1007/s11465-009-0045-6
关键词: Lamb wave modeling LISA/SIM theory finite difference equation finite element
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
《工程管理前沿(英文)》 2019年 第6卷 第2期 页码 193-206 doi: 10.1007/s42524-019-0013-8
关键词: building information modeling mediation enframing lifeworld rationalization Heidegger Habermas Ihde
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1301-1316 doi: 10.1007/s11709-021-0765-1
Hierarchical modeling of stochastic manufacturing and service systems
Zhe George ZHANG, Xiaoling YIN
《工程管理前沿(英文)》 2017年 第4卷 第3期 页码 295-303 doi: 10.15302/J-FEM-2017047
关键词: stochastic modeling QBD process PH distribution heavy traffic limits diffusion process
Structural modeling of a typical gas turbine system
Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER
《能源前沿(英文)》 2012年 第6卷 第1期 页码 57-79 doi: 10.1007/s11708-011-0164-8
关键词: system modeling gas turbine system evaluation graph theoretic approach
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 579-592 doi: 10.15302/J-FASE-2023526
Nutrient pollution of air and water is a persistent problem in Europe. However, the pollution sources are often analyzed separately, preventing the formulation of integrative solutions. This study aimed to quantify the contribution of agriculture to air, river and coastal water pollution by nutrients. A new MARINA-Nutrients model was developed for Europe to calculate inputs of nitrogen (N) and phosphorus (P) to land and rivers, N emissions to air, and nutrient export to seas by river basins. Under current practice, inputs of N and P to land were 34.4 and 1.8 Tg·yr–1, respectively. However, only 12% of N and 3% of P reached the rivers. Agriculture was responsible for 55% of N and sewage for 67% of P in rivers. Reactive N emissions to air from agriculture were calculated at 4.0 Tg·yr–1. Almost two-fifths of N emissions to air were from animal housing and storage. Nearly a third of the basin area was considered as pollution hotspots and generated over half of N emissions to air and nutrient pollution in rivers. Over 25% of river export of N ended up in the Atlantic Ocean and of P in the Mediterranean Sea. These results could support environmental policies to reduce both air and water pollution simultaneously, and avoid pollution swapping.
关键词: agriculture air-water modeling European rivers nutrient pollution sewage systems source attribution
Dongping CAO, Heng LI, Guangbin WANG
《工程管理前沿(英文)》 2017年 第4卷 第1期 页码 20-34 doi: 10.15302/J-FEM-2017010
关键词: building information modeling interorganizational collaboration construction project performance resource dependence theory partial least squares modeling
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0678-2
关键词: pneumatic artificial muscles soft robot modeling approach principle of virtual work external load
标题 作者 时间 类型 操作
EEG controlled neuromuscular electrical stimulation of the upper limb for stroke patients
Hock Guan TAN, Cheng Yap SHEE, Keng He KONG, Cuntai GUAN, Wei Tech ANG
期刊论文
Continuous modeling of soil morphology —thermomechanical behavior of embankment dams
Bettina ALBERS, Krzysztof WILMANSKI
期刊论文
Computer modeling of crystal growth of silicon for solar cells
Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO
期刊论文
Lamb wave propagation modeling for structure health monitoring
Xiaoyue ZHANG, Shenfang YUAN, Tong HAO
期刊论文
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
期刊论文
Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane
期刊论文
Hierarchical modeling of stochastic manufacturing and service systems
Zhe George ZHANG, Xiaoling YIN
期刊论文
Structural modeling of a typical gas turbine system
Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER
期刊论文
HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER: AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS
期刊论文
Impacts of building information modeling (BIM) implementation on design and construction performance:
Dongping CAO, Heng LI, Guangbin WANG
期刊论文