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It is difficult to obtain failure data in stability analysis of long lifetime gyro such as hemispherical resonator gyro. Therefore, traditional stability analysis methods based on failure data is useless in stability analysis of long lifetime gyro. A stability analysis method based on probability statistics is proposed in this paper to solve this problem. In this method, Weibull distribution is applied...
After analyzing the shortcomings of existing synchronization methods based on GPS and the research status of synchronization for Crosswell Electromagnetic Imaging Logging Tool(CEMIT), a feasible synchronization method combined the actual conditions of CEMIT with the basis of existing research is proposed. First of all, GPS receiver provides a high accurate 1PPS, which received by Surface System, and...
Due to the structural design of the traditional matrix converter, the voltage transfer ratio is limited to 0.866. In this paper, we purposed a new one-step boost type matrix converter, which can change the voltage transfer ratio variable from the perspective of changing the topological structure. The topological structure of one-step boost type matrix converter not only improved the voltage transfer...
MicroRNAs (miRNAs) are a class of small noncoding RNAs which have close relations with human diseases. Herein, predicting the novel associations between human diseases and miRNAS is urgently needed. However, only use of the experimental approaches to identity such relations have many choke points such as time-consumption and high cost. In this study, we adopt a network-based inference (NBI) based...
This paper studies a kind of group consensus problem for fractional-order multi-agent system(MASs). For leaderless MASs, We propose a distributed consensus algorithm under a bipartite graph. Based on the given dynamics, the agents are divided into two groups, each group can reach a steady state value and the steady state values of the two groups are different. Simulation examples are presented to...
Second-order system of lacking damper was an alyzed and studied, and a kind of control strategy namei overlapping control was proposed to overcome the overshoo problem. By converting an input signal into two signals whicl have certain relationships on amplitude and phase to counterac the overshoot of the system, and the response speed can also b guaranteed. The parameters of overlapping control were...
The prediction of the anode effect has long been a challenging industrial issue in aluminum electrolytic production. For improving the prediction precision of the anode effect, this paper combines support vector machine (SVM) and K nearest neighbor (KNN) algorithm. First of all, samples are extracted from the real-time production data and weighted with Relief algorithm. Afterwards, the classifier...
Network analysis of signals originating from different parts of brain during motor imagery (MI) has gained lots of interest recently. In this paper, we used EEG to construct the brain network during MI, and analyzed the topological characteristics of the EEG function network. It is found that the node degree and clustering coefficient of the right hand MI is higher than the left hand MI on the nodes...
In previous research, an equivalence for the MVN (minimum velocity norm) scheme on robotic redundancy resolution have been shown by Zhang et al, that is, Zhang equivalence (ZE) with MVN type. In this work, as the extension of the MVN-type ZE, a new acceleration-level minimization scheme with a generalized formulation is studied for redundant robot manipulators. Then, this minimization scheme is theoretically...
In this paper, the displacement control and angle control of helicopter sling load system are investigated respectively by using zeroing-dynamics (ZD) method and zeroing-gradient (ZG) method, through which we yield corresponding ZD controller and ZG controller. More importantly, the recently new formula termed Taylor-Zhang discretization (TZD) formula is derived and applied to the discrete control...
In this paper, a new type of Euler-precision 3-node g-proportional (3NgP) formula is proposed and investigated in the general framework of Zhang discretization (ZD), which is named formula ZD3NgP_Z with subtype Z corresponding to the second (as well as student) coauthor. By Taylor expansion, we prove that formula ZD3NgP_Z approximating the fst-order derivative can achieve an error pattern of O(g)...
Detection task allocation plays a significant role in many military applications. A better detection task allocation strategy can improve the operational efficiency of the military actions, such as improving tracking accuracy and attacking efficiency. However, the trajectory of the target is usually random which makes the allocation difficult to solve. In this paper, we consider the optimal detection...
Relief materials are transported to the disaster areas after natural disasters. This paper describes the substitution and collocation relationships among relief materials, and finds the maximum of the number of victims could be supplied by them. On this basis, this paper optimizes the loading density of relief materials by establishing and solving corresponding quadratic programming problems. The...
In the new energy power grid connection, frequency is an important indicator of power grid's operating state. The frequency in power system is easily affected by the access and exit of new-energy generators and appears large fluctuations, and thus it is essential to develop a measurement method that is highly precise and widely ranged. This paper initially introduced a variety of common methods of...
How to develop an intelligent ventilator and control it well to provide a better experience and treatment effect for respiratory patients is still a difficult task needed to be solved. The existing problems focus on the control algorithm and the mechanical structure. Dedicated to these two problems, the paper proposes a design of CPAP ventilator based on the ANN algorithm. Firstly, the paper introduces...
Acupuncture is an effective treatment for various diseases in traditional Chinese medicine. However, the detailed mechanisms of how acupuncture information is transmitted in nervous system are still not clear. Thus, the high-performance simulation of the electroacupuncture dynamics is of vital importance in the field of computational neuroscience, which requires a hardware platform with high computational...
Most researchers believe that multi-view images taken from the same object lie on a low dimensional manifold. Based on this observation, this paper mainly focuses on answering the question: how accurately rigid object pose can be estimated by manifold embedding? Firstly, a new manifold embedding method was proposed which owns the property of preserving relative position on the low-dimensional manifold...
This paper studies the controllability problem for weighted digraphs with antagonistic interactions. Based on the graph partition theory, the L-equitable partition(L-EP) is proposed. Using L-equitable partition, a graph-theoretic necessary condition is proposed for the controllability of the multi-agent system and an algorithm is given for the computation of the partition. Besides, the upper bound...
Compared to homogeneous robotic teleoperation system, the design and control of heterogeneous robotic teleoperation system are facing greater challenges, due to the differences in the mechanical structures, DOFs (Degree of Freedoms) and task spaces between the master and slave robots. In this paper, first, a heterogeneous teleoperation system is designed where a Phantom Omni haptic device is utilized...
Based on the mobile robot path planning problem, on the basis of the improved grid method, this paper proposes an improved ant colony algorithm, the particle swarm optimization algorithm can be incorporated into the ant colony algorithm. Firstly, using the particle swarm optimization algorithm to search for global path roughly. At the same time of search for dynamic pheromone intelligent distribution,...
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