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Large displacement elastic joints have been widely used in rehabilitation exoskeleton, in this paper, a brief reminder of the application of large displacement elastic joints in exoskeleton robotic structures has been given. A new concept of rigid-compliant exoskeleton joint has been presented using four-bar compliant linkage for exoskeleton robot applications. The paper describes the method of designing...
Acoustic emission (AE) technique is an emerging nondestructive inspection method for rail detection. But the detection distance for AE sensors is too short and it's infeasible to monitor an entire railway. As a replacing scheme, it's effective to place the sensors in the wheels, which make the study of wave propagation between elastic bodies significant. In this paper, the model of wheel-rail coupling...
In order to address the short distance transmission of inductive coupling wireless power transmission and the poor stability of power supply of near-field resonant wireless power transmission, achieving high-power, efficient and stable wireless power supply for dynamic load on meter level, the cooperative operating mode with tight-strong coupling is proposed and analysed. By establishing unified mathematical...
Adaptive blind MIMO equalization algorithm adopting decision feedback recurrent neural network(DFRNN) is proposed and investigated in 4 × 56 Gbit/s MDM-QPSK system. The required-data-length of DFRNN is 1/3 of that in CMA with similar performance.
This paper presents design of wirelessly powered coils for implantable micro-system for blood flow sensing, and a technique of optimal resonant load transformation. Basics and calculations are also introduced for the wireless powering structure to achieve optimal power transfer efficiency. Measurement results show that the implemented wirelessly powered coils in the implantable blood flow sensing...
In this paper, we propose a novel method based on the combination of Named Entity Recognition and Entity Rank algorithm for detecting key entities with significant influence and importance from huge sentiment data collected from Internet. Firstly, we extract entities from the target news websites and forums using a rule-based and CRF combined method. Secondly, we use the Entity Rank algorithm to calculate...
Six-degree-of-freedom (6-DOF) haptic rendering is challenging when multi-region contacts occur between the graphic avatar of a haptic tool operated by a human user, which we call the graphic tool, and deformable objects. In this paper, we introduce a novel approach for deformation modeling based on a spring-sphere tree representation of deformable objects and a configuration-based constrained optimization...
In designing a large inclined angle hydraulic support, the structure characteristics of four-bar linkage is presented, and ADAMS software is applied to four-bar linkage modeling and simulation. In order to attain optimal results, parameterized modeling and optimization is achieved, and the design results meets the practical requirements very well. By means of this virtual design method, the errors...
Four-bar linkage is one of the most important components of shield-type powered support or chock-shield-type hydraulic support. Parameterized modeling, simulation and optimization of four-bar linkage is firstly accomplished by use of ADAMS software in designing a large inclined angle hydraulic support. Then based on three-dimension model of the whole hydraulic support, applying COSMOS/Works software,...
As a macro complex systematic engineering, the Digital Ocean project is an ongoing task in china. The mission of the Digital Ocean is to build an interactive network information system based on a three-dimensional globe. The Digital Ocean can help provide integrated information on historical, current and future states of ocean and coastal zone. This paper addresses the architecture of Digital Ocean,...
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