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The success of P2P systems ultimately depends on whether rational users will contribute their services. In five rules that Nowak generalized supporting cooperation, reciprocity mechanisms are usually utilized in P2P networks. As a tradition incentive mechanism, reputation based on indirect reciprocity is frequently designed to punish free-riders. Recent studies present social relationship among peers...
Reducing energy consumption within buildings has become a focus of researchers. This paper looks modern buildings as a cyber-physical energy system and provide a three-layer architecture with the focus on energy saving. We introduce the key technologies from sensing, computation and controlling aspects, besides with highlighting some issues for consideration.
Considering the time-varying singular systems, by using analysis method of Lyapunov functions and inequalities of matrix, through the asymptotic stability of linear time-varying system and the necessary and sufficient conditions of admissibility for time-varying singular systems, the necessary and sufficient conditions of admissibility for the time-varying singular systems and meet the H8 control...
This paper presents a transformer fault diagnostic expert system based on Drools to solve the issues as knowledge stereotyping, which commonly exists in the current transformer fault diagnostic system, resulting in the modification of stereotyping knowledge in actual application, and thus involving the modification of whole system, as well as the bad application effect, etc. First, Drools frame should...
Grid-connected photovoltaic power generation and independent photovoltaic power generation which are suitable for different occasions are all important application field in photovoltaic system technology. If the two modes are connected effectively, the application range of the photovoltaic inverter can be expanded to move forward a single step, at the same time the structure of photovoltaic power...
This paper shows an important influence of amount of sulphuric acid in electrolyte on thickness of aluminium oxide layer created with varying electrolyte temperature. Impact of these variables is shown by using DoE for six factors (amount of sulphuric acid, amount of oxalic acid, amount of aluminium cations, electrolyte temperature, anodizing time, applied voltage). Oxide layer was created with current...
Growing power demand and depletion of conventional energy resources are the predominant reasons for distributed generators (DG) penetration into micro grid. The conventional protection schemes are not suitable for micro grid due to bidirectional power flow. This paper proposes a novel adaptive over current (OC) protection scheme for micro grid. This scheme employs dual simplex algorithm to identify...
Sensors are often mounted on cylindrical shells for searching underwater objects. The sensors are contanminated by the noise generated by vibrations of the shell and their radiation. This paper investigates the noise of sensors induced by the vibrations and their radiation. The vibrations taken into account the fluid-loading effect are analysed using Waveguide Finite Element and Boundary Element Method...
This paper presents a study on simplest printed antenna for various ultra-wideband (UWB) based applications. The gap between height of ground plane and lower edge of patch along width is varied to observe the magnitude of S11 in the UWB frequency range for the appropriate antenna dimensions. The proposed antenna exhibits a 10 dB impedance bandwidth from 3.1 to 10.5 GHz, which constitutes about 108...
In modern contest the world is moving from conventional energy sources to the renewable one. Within the available alternative sources photovoltaic energy shows huge potential, contribution of solar energy generation has been increasing very fast as a result cost of solar energy/kWh is falling rapidly. Solar radiation is one of the important parameter, power generation vary almost linearly with solar...
The acoustic transmission technology of information measured by MWD is an important research direction of underground information wireless transmission technology. The drill string as information transmission channel is composed by size difference drill pipe, so it is one of important issue to understand the relationship between the drill pipe size difference and acoustic wave propagation characteristics...
In this paper, a sleep EEG staging method based on Hilbert-Huang transform and sample entropy was proposed to improve the efficiency of automatic sleep staging. Firstly, the marginal spectrum of EEG was obtained by Hilbert-Huang transform. Secondly, features were extracted based on the energy distribution of the frequency band and EEG sample entropy. Thirdly, the extracted features were employed to...
In order to accurately identify and control the disease of sunflower, using the computer image processing technology to made a research on the common sunflower rust in the production. Will be collected under natural light conditions sunflower leaf disease image preprocessing, comparing of several common colorimetric system to HSI color characteristic parameters as a research field, and using color...
The primary aim in brain image segmentation is to perform partition a given brain image into different regions which are homogeneous with some criterion. Magnetic resonance image (MRI) segmentation plays crucial role in accurate representation of white matter (WM), grey matter (GM) and cerebrospinal fluid (CSF) provides a way to identify many brain disorders, such as Alzheimer's disease, schizophrenia...
There are different defining problems are still need to resolve for the high accuracy of Optical Character Recognition (OCR) of Devanagari script. The more prominent number of font availability in Devanagari script is a challenge for the character detection in India. Therefore to conquer this problem, here is proposed a system for identification of diverse font of characters which helps to improve...
3-Dimensional gesture tracking and recognition systems are changing traditional methods of human computer interaction with gesture interaction. These systems offer advantage of tracking and recognizing unencumbered gestures which are drawn in free air. In this paper, we present numeral gesture recognition using Leap Motion. Leap motion is a 3D motion sensor which provides unencumbered, 3-dimensional...
In this paper a method is presented for automatic detection and recognition of human faces for surveillance purpose. The proposed method first detects skin regions in the image using a skin color model using YCbCr and HSV color space. Then apply height to width ratio followed by face region identification. Lastly PCA verification algorithm is used to detect face accurately. Train face images are used...
Considering the linear time-varying uncertain singular system, by using analysis method of matrix inequality, the concept of robust H8 stability and robust H8 stabilization for the system, matrix inequalities for this kind of systems are established, the problem of robust H8 stability for this kind of systems are transformed into solving the matrix inequality problem, the necessary and sufficient...
Electrical Supply Division (ESD) is responsible for the distribution of power supply safely and efficiently from the low voltage substation to consumer end points. However, with the growth in population density and the demand for energy the electric distribution system has become more complex and congested. It has become difficult for the linemen to locate the fault with the traditional method of...
Recent years have witnessed the significant success of representation learning and deep learning in various prediction and recognition applications. Most of these previous studies adopt the two-phase procedures, namely the first step of representation learning and then the second step of supervised learning. In this process, to fit the training data the initial model weights, which inherits the good...
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