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In this paper, the conceptual design with integrating motion control and considering the cross current was applied to establish a submarine motion simulator, where the path motion stability is evaluated. The methods used to construct the simulator include the standard navigation approach by applying the LOS algorithms and PD control Euler-Rodriguez quaternion for conversion between submarines motion...
This paper presents the motion simulation of an autonomous underwater helicopter (AUH), a new type of underwater vehicle proposed by Zhejiang University. In order to determine whether its controllability meets the design requirements, a singularity-free unit quaternion stable control method is used for simulating the AUH performance in MATLAB, including its force and trajectory under different types...
Recently, fault indicators with communication function have been increasingly used in fault diagnosis of distribution networks. In this paper, an objective function which considers the reliability index of the distribution network and economic factors synthetically has been proposed for optimal placement of fault indicators in distribution networks, and binary particle swarm optimization algorithm...
This paper presents a physical-aware diagnosis technique for failing dies with multiple interconnect defects, including open and bridging. Our diagnosis technique considers fault masking/reinforcement and Byzantine effects. We use a section, a piece of interconnect, as the physical-aware diagnosis unit. We adopt the Single Location in a Cluster (SLIC) technique, where sections with similar simulation...
A water control system is designed for the new multi-functional and model-switched remotely operated vehicle, which is developed for detection and decontamination of underwater structure in Ocean Engineering. The dynamic propulsion system and controller unit are designed by analyzing the dynamic force of robot. The design of the water console consist of power supply, control system, communication...
Understanding the causality behind the observational data is of great importance to a lot of real world applications, e.g., the improvement of Quality of Service. Non-Gaussianity has been exploited in numerous causal discovery methods for observational linear acyclic data. Transforming non-Gaussianity into indirect metrics is a conventional solution employed by existing methods, although this usually...
The target tracking performance of radar system is dependent on the accurate modeling of target motion and the suitable filter for treating the noise problems when the radar detects the target. In this paper, the line-of-sight (LOS) dynamic equations of the interceptor-target are modified to be the motion model of maneuvering target and that is combined with the extended Kalman filter to treat the...
In order to realize the functional requirements of hydraulic cylinder installing in the leg of the rehabilitation robots, a new type of servo rotary valve was designed with an introduction of its structure. The spool in rotary valve may have different locations when the actual working conditions are different. To know the flow field of rotary valve above case we have done a thorough numerical analysis...
The ion selectivity of nanochannel due to the wall surface charges is capable of inducing strong coupling between fluidic and ionic motion within the system, which has been overlooked in the study of nanofluidics. This interaction opens up the prospect of operating nanochannel as nanoscale devices for electrokinetic energy conversion. However, the very short channel lengths make the ionic movement...
The existing industry standard compact models, VBIC and HICUM, are used to model devices using a linear thermal resistance network. However, the thermal resistance of the SiGe Heterojunction Bipolar Transistor (HBT) depends on the amount of power dissipated in the device. The increase of thermal resistance caused by self-heating due to the unsymmetrical emitter geometry and deep trenches lead to a...
This paper studies the optimal configuration of Unmanned Surface Vessels (USVs) for Moving Long Baseline (MLBL) positioning system. The optimal configuration includes the optimal formation of USVs, the optimal distance between USV and Autonomous Underwater Vehicle (AUV), the optimal number of USVs, and the optimal parameter of distance measurement error. In previous paper, we establish a cost function...
For neural probes to be used chronically for years in the human body, they must provoke minimal scarring. Recently, a number of groups have reported substantially reduced scar tissue using cellular scale electrodes below 15 μm in size. This size scale is accessible to manufacturing techniques, but can be very difficult to insert in the brain for most common electrode materials. In this study, we explore...
In this paper, an improved sliding mode controller based on bio-inspired scheme is put forward to complete the depth tracking task for remotely operated underwater vehicle (ROV). Firstly, the heave motion model of ROV is rewritten in an appropriate form. Secondly, a disturbance observer is established to estimate and compensate the disturbance imposed on ROV. Afterwards the control input of ROV is...
Dynamic performance is one of the most important criteria of the truss robots. In this paper, the purpose is to verify the certain accuracy and feasibility of the rigid-flexible coupled model based on RecurDyn (Recursive Dynamic) and research the dynamic performance of the truss robot by the simulation and experimental methods. Firstly, two critical components of the truss robot are transformed respectively...
An equivalent electric circuit model is used to interpret the dynamic behavior of a photo-voltaic (PV) panel with a power electronic converter. The power electronic converter used for maximum power point tracking (MPPT) draws rippled currents from the PV panel. The circuit model is derived on basis of the static single-diode model, in which, the threshold voltage is approximately identical to the...
In this contribution, Grey Relational Grade (GRG) and Pearson Correlation Coefficient (PCC) which are originally used for automation area are proposed in path-loss model selection of channel modeling. The commonly used method-Root Mean Square Error (RMSE) is employed as a comparison. Measurement data derived from inland river regions and open sea environment as well as many kinds of propagation path...
A CSE (charge storage efficiency) model is proposed to explain the origin of ISPP slope degradation for various charge-trapping NAND Flash devices. Experimentally it is often observed that the programming window is generally degraded as device dimension scales [1], suggesting a strong size effect. Through our model analysis, it is clarified that for a given amount of trapped electron density in the...
An immune system is a collection of cells and molecules that can respond and generate resistance to disease, especially infectious disease. By enhancing a patient's immune system to augment conventional therapies is a clinical practice for long time. As there are a lot of clues that tumour can be influenced by immune system, in this paper we have developed a partial different equations (PDEs) model...
This paper examines the impact of key supplier and buyer integration activities as product co-design and information sharing with supplier and buyers as well as their impact on service innovation performance. It contributes to existing studies by asking how such integration activities affect service innovation performance in both direct and indirect ways. Among a sample of 215 logistics service firms...
Understanding the dynamics of information spreading over social networks has been of great interest for a long time. It has been convincingly demonstrated that the topology of a network can significantly affect information spreading over it. Information spreading is often compared on small-world networks and random networks. In this paper, we find that the heterogeneity of spreading abilities of network...
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