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The study of location of the electricity payment point in rural electric power business area is the key issue to solve th e "three rural issues", implement "One Belt and One Road", b uild a well-off society, while the big data environment provides a new research idea for the reasonable distribution of electricit y payment point. Taking residents' electricity payment record and...
This paper proposes and demonstrates a novel process to improve structural symmetry and surface quality of fused silica (FS) micro shell resonator (MSR) with T-shape masses. The whirling platform is presented to improve micro blow-torching for fabricating FS MSR. A sub-nanometer smooth surface quality (0.404 nm Ra) and a high radial symmetry of less than 9μm (about 0.1% relative tolerance) has been...
Understanding user-induced effects on signal reception across multiple frequency bands is of great scientific and military importance to the wireless industry. Various on-body locations and directional heading of the user are believed to impact the performance of mobile devices, but there has been little work across multiple frequency bands to quantify these user-induced effects. In this work, we...
Understanding user-induced effects on signal reception across multiple frequency bands is of great scientific and military importance to the wireless industry. Various on-body locations and directional heading of the user are believed to impact the performance of mobile devices, but there has been little work across multiple frequency bands to quantify these user-induced effects. In this work, we...
This paper addresses the consensus problem of Lur'e-type nonlinear multi-agent systems with directed switching topologies. A special class of directed topologies containing a directed spanning tree is characterized. Distributed consensus controllers are constructed based on relative states information of neighbor agents. A special property of the graph Laplacian matrix is used to convert the consensus...
In view of the shortcomings of the artificial bee colony (ABC) algorithm, such as slow convergence speed, low convergence accuracy and easy to fall into local optimum, a balanced colony algorithm (NABC) based on multiple selections strategy is proposed. Firstly, the fitness and the current optimal honey source position are considered fully to improve the search strategy in onlooker searching stage,...
This paper presents an improved process to fabricate micro shell resonator (MSR) with eight circular-distributed T-shape masses including fused silica (FS) torch-blowing based on whirling platform and femtosecond laser ablation. The resonator is formed by micro blow torch and flowing a thin FS whirling at high speed, and ablating the eight T-shape masses using femtosecond laser. The highly symmetric...
This paper reports early developments on an wearable IoT system that can be used for collecting quantified data about interactions among children with autism spectrum disorders (ASD) in classroom settings. The overall objective of the project is to perform data-driven detection, therapy, intervention, and progress monitoring for children with Autism. Early intervention can help support the development...
This paper presents a framework for a firewall to analyze and block BitTorrent file-sharing protocol using Traffic Analysis (TA) methods. BitTorrent traffic can be a concern of network administrators and is a valuable target for TA based investigation. In this work, the ability of a TA based classifier to identify the existence of BitTorrent traffic is tested under the condition that it is not only...
CCN (Content Centric Networking) is a new network architecture, which is optimized for content distribution by introducing route cache and request aggregation. However, current CCN is still similar to traditional Client/Server network architecture, with limited cache space, and the request aggregation policy is suitable for live streaming media rather than streaming media on demand. The main reason...
Power selling by electronic management has still not been realized in the power system. Especially, smart payment terminal of state grid lacked a variety of payment means, and the users mainly paid the fees by cash. Inevitably, there were some security problems and human error in the process of reconciliation. Currently, there were some operation regulations in the management system, as well as there...
Based on finite element theory, ANSYS software was encapsulated by VB software. The visual analysis system for structure field and flow field of high-parameter gate-valve was developed through their seamless integration. Conducted with APDL, simulations for gate-valve’s structure field and flow field promoted the efficiency of serial design and optimize design. Making full use of prominent advantage...
Enabling device-to-device (D2D) communication in cellular network is shown to be a promising candidate in the future fifth generation (5G) wireless network. Specifically, the hybrid architecture leads to flexible and efficient resource allocation for cellular users and D2D users, thereby enhancing utilization of spectrum resources. However, if not properly handled, mutual interference will be significantly...
With the development of general aviation, UAVs are increasingly used in all areas of our life. However, electric multi-rotor UAV can't achieve long-endurance, large load transport due to battery energy density. And hybrid power system is a perfect solution to this problem. This paper raised a parameter matching method of the UAV's hybrid power system related to the pulling force, required power and...
Oil and gas transportation in pipeline plays an important role in the lifeline of national economy, industrial production and daily life. In China, aging phenomenon of oil and natural gas pipeline is widespread in the existing pipeline. Therefore, the safety of the pipeline has been concerned. It is a great significance for forecasting dent depth of transportation pipeline accurately. In this paper,...
Ternary Content Addressable Memory (TCAM) is widely used for caching flow entries in Software Defined Network (SDN). However, limited by the current technology level and hardware cost, the capacity of TCAM is difficult to meet the needs for caching flow entries of large scale SDN, which would seriously affect the scalability of SDN. Aimed at the problem, some researches improve the efficiency of TCAM...
A novel system capable of detecting on-bed activity during sleep using first-reflection ultrasonic echolocation is described herein. As is employed in many existing solutions, such activity detection may be utilized in the assessment of sleep quality. Compared to current approaches using either wearable devices or sensors collocated on the surface of the bed, the proposed architecture greatly enhances...
A wearable sensor capable of detecting the presence of humans within a front-facing 90-degree sector of varying radius is demonstrated herein. The system offers extensive applicability across a variety of scenarios where detecting the parameters of human interaction, including separation distance and duration, is of value. Sensing is accomplished using an ultrasonic distance and passive infrared sensor...
This paper presents a hybridized discontinuous Galerkin time-domain (DGTD) method with boundary integral equation (BIE) method to accurately solve the electromagnetic scattering problems. The weighted Laguerre polynomials are chosen as temporal entire basis functions to expand the temporal variables, which makes the proposed scheme free from Courant-Friedrichs-Lewy (CFL) condition and promising for...
The electricity power supply company has entered the era of market economy as the deepening of reform, and the pressure to run the company well is increasing gradually. However, some questions, such as malicious default, electricity bills evasion, electricity cheat, and so on, still have not been solved. How to effectively avoid the arrearage risk and improve the economic benefit is key for the enterprises...
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