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Analyzed the principle of single camera stereo vision sensor based on the two plane mirrors. Established the measurement model of three-dimensional points, calibrated the internal and external parameters, and the corresponding experiment has been done. Compared the results got by the method in this paper with the one got by the traditional two cameras stereo vision sensor, the experimental results...
WeChat is a new generation of mobile instant messaging product, which has over 800 million active accounts and support voice, video, pictures and text messages. China's Ministry of Science and Technology has applied social media to science and technology management. Rui Dong Ruan is one of the official accounts in the WeChat matrix of China's Ministry of Science and Technology. This research proposes...
Blockchain is attracting more and more attentions from many kinds of fields, such as finance, industry, and theory researchers. Rather than viewing blockchain as a novel technology, we should think it as an innovation for managing digital society, which provides fundamental principles to support democratically distributed applications. Based on the design and application of the Energy Internet, this...
Basic attack and defense actions in games are often extended by more powerful actions, including the ability to temporarily incapacitate an enemy through sleep or stun, the ability to restore health through healing, and others. Use of these abilities can have a dramatic impact on combat outcome, and so is typically strongly limited. This implies a non-trivial decision process, and for an AI to effectively...
In recent years, some researchers have suggested that moisture play an important role in the abnormal temperature rise of the composite insulator, and electric field may affect the process of moisture invading into the composite insulator. This paper carried out the research to test the influence of electric field on the moisture absorption characteristic of silicone rubber material, and measured...
Insulation system is a critical part of large superconducting equipment, and for the particular operating environment the insulating materials utilized under cryogenic temperature need to be studied. In this study, vacuum flashover characteristics of polyimide film under temperature form 25K to 300K was studied by using the self-developed cryogenic temperature dielectric test system. The results show...
Z-scan spectroscopy is used to reveal ultra-broadband nonlinear absorption across different orders of resonant transitions in single-wall carbon nanotube ensembles, demonstrating the potential of nanotubes for nonlinear optics beyond the conventional NIR range.
In this paper we propose a novel concept of human-machine-environment cyber-physical system (HME-CPS) in smart homes to support independent living of elderly and physically disabled people. Within this system, a hierarchical task planning approach is developed on purpose of combining qualitative reasoning and quantitative calculation via bidirectional data exchanges between C++ and Prolog. A group...
Natural human-robot interaction plays an important role in effective nursing services system provided by service robots for the elderly and disabled people. This paper proposed a multimodal “human-robot integration” collaboration system, and set up a shared collaboration interface between human and service robot. Consequently, Users and service robots can naturally communicate and retrieve information...
Since conducting particles are considered to be the reason for the late discharge phenomenon in Vacuum Circuit Breaker (VCB) after the interruption of large current, such as some non-sustained disruptive discharge (NSDD) and some re-strike. This paper constructs the synthetic experiment system using the duplicate circuit to research the expected particles induced late discharge phenomenon. This experiment...
In order to investigate the behavior of protrusions in VCB, the point-to-plane insulation structure is constructed in vacuum. The high speed video camera is synchronized with the high voltage and used to visualize the phenomena. Particles are observed with supplementary laser. But, the vapor is recorded through the excitation emission with the projection of the field emission electron. It is observed...
As a part of public transportation, taxi plays a very important role of passengers' travel from the airport to downtown. In order to exploring an efficient taxi dispatch mechanism and saving passenger waiting times, we develop an adaptive airport taxi dispatch system based on principal components analysis wavelet neural network (PCA-WNN). A series of new online short term time forecasting techniques...
The paper aims to use strategic diagram technique to detect research themes and reveal their evolutionary trends in a scientific field using bibliometric data under practical application. Keywords are selected not only from author-provided and machine-indexed keywords, but also extracted from the full text so as to eliminate the "indexer effect". The keywords are then clustered to detect...
After high current interruption in vacuum interrupter, the electrode temperature rises because of the current heat process, and the surface becomes rough due to the arc burn on electrodes. In this paper, random discharge after current zero is reported, and conducting particle is considered to be responsible for the phenomenon. The authors developed a synthetic experiment system, which is a combination...
The function and architecture of smart supermarket was studied based on IoT (Internet of Things) technology. An anchor-free localization algorithm for large scale shopping carts was proposed. Specifically, by introducing the procedure of FastMap algorithm, a fast mapping from pairwise proximity matrix between shopping carts to corresponding coordinates was implemented. In this process, location area...
Automated task planning for service robots faces great challenges in handling dynamic domestic environments. Classical methods in the Artificial Intelligence (AI) area mostly focus on relatively structured environments with fewer uncertainties. This work proposes a method to combine semantic knowledge representation with classical approaches in AI to build a flexible framework that can assist service...
Concurrent signatures were introduced as an alternative approach to solving the problem of fair exchange of signatures by Chen et al.[1], in which two entities can produce two signatures that are not binding, until the keystone is released by one of the parties. Recently, Huang et al.[10] proposed a more ambiguity and stronger fairness concurrent signature scheme based on identity. However, we will...
Chinese Scientific & Technical Vocabulary System (CSTVS) is a kind of knowledge organization systems for Chinese SCIENTIFIC & TECHNICAL information resources management and deep knowledge services that proposed by us. Now we provides the CSTVS as free semantic resources for research and education users all over the world. In this paper, knowledge infrastructure and related content computing...
This paper analyzes the nature of High-voltage gas discharge switch design, and converts the electrode contour design problem into a curve optimization problem. The authors use the electrical strength non-uniform factor as the criterion of this optimization. Meanwhile, this paper adopts the particle swarm optimal algorithm as the computation strategy. For this optimization problem is subjected to...
Particle Swarm Optimization (PSO), firstly presented in 1995, is mainly used in high-dimension optimization. Despite its wide use, PSO have a disadvantage of prematurity. This paper put forward a new Particle Swarm Optimization algorithm based on Nelder-Mead simplex algorithm to overcome the PSO's nature of prematurity and precision problems. Nelder-Mead simplex algorithm is hybrid into the process...
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