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The RCC-SS (Remote Control Center — Smart Substation) integrated maintenance technology based on SOA (Service Oriented Architecture) is proposed to solve the following problems: the complexity of debugging and maintenance when connecting the smart substation to the remote control center, the singularity of information exchange, and the difficulty to support advanced interactive application. By the...
When a power apparatus is put into operation, temperature difference always exists in its insulation. As to HVDC insulation system, this temperature gradient may play an important role on the space charge behavior and field distribution. This report summarized our attempts to understand the effects of temperature gradient on space charge and material lifetime. Modified pulsed electro-acoustic (PEA)...
The noise pollution is still a troubling problem for us, especial in hospital, library, baby-care center, etc. Although many decibel-meters are applied to those environment, which indeed must be kept quit, but the decibel-meters can only detect the noise pollution limited to nearest area around the device. We will face the incorrect measuring data from the decibel-meters in bigger space like library...
Linear modeling is the most common used statistical technique to discover hidden relationship between underlying random variables of interests because of its simplicity and interpretability. In this paper, we utilize linear models to study glycosylated hemoglobin, which a measure of the disease of diabetes. We want to find which other predictors or indicators have the most influential power on glycosolated...
This study was based on the Internet of Things (IoT) architecture to propose an ultrasonic Morse code electronic lock for a home access control and safety system. Audio components of a smartphone were employed for ultrasonic Morse coding. Once the password of the receiver is confirmed to be correct through a microphone and micro-controller decoding, the details about the unlocking personnel and unlocking...
Rapid popularization of VR equipment in human life has brought unprecedented convenience and entertainment experience. Cardboard, Oculus Rift, VR Gear and other VR headsets are gradually being accepted and recognized. The realization of VR educational games will become the key point of the application of VR technology in the field of education. This paper demonstrates how to the possibility of educational...
In order to investigate the engineering geological properties of the saturated clay foundation along the Jingbian-Wangquanliang expressway, in-situ and laboratory tests had been done, including in-situ standard penetration test, cone penetration test and geotechnical tests in the laboratory. According to test results, the physical and mechanical properties of the saturated clay foundation are studied...
Space charge accumulation in the dielectrics can greatly distort the electric field, and then greatly influence the in-situ property, degradation and breakdown properties. It is affected by several factors like electrical field, temperature and fillers. The focus of this paper is the behavior of space charge in the unfilled/filled epoxy resin under temperature gradient. In this work, neat epoxy resin...
This paper investigate an asymmetric support vector machine approach for wind turbine hydraulic pitch systems. Hydraulic pitching system in the wind turbine is critical for energy capture, load reduction and aerodynamic braking. Its reliability and maintenance is thus of high priority. The fault of cylinder internal leakage is studied in this paper. The fault and not-fault conditions for the internal...
This paper is concerned with the iteration identification algorithm for Hammerstein model with complex-valued input for the fact that the existing algorithms are not valid for complex input. Based on the stochastic gradient algorithm, the extended stochastic gradient algorithm is proposed by defining new cost function for complex input. The extended hierarchical multi-innovation stochastic gradient...
Deep geological disposal is an internationally accepted way to deal with high-level radioactive waste. A better understanding of mechanical characteristics of host rock is very important for the stability of underground excavation and its long-term safety during operation. In the present study, tests have been performed using a true triaxial rock test system in combination with acoustic emission monitoring...
Evidence shows that non-enzymatic glycation plays an important role in the development of diabetes, diabetes-related complications and neurodegenerative diseases. Mass spectrometric methods have been used for non-enzymatic glycation of proteins. At present, CID remains the major fragmentation method for peptide sequencing. In this study, we utilized synthesized peptide models to study fragmentation...
High temperature weather occurs frequently in summer in the Yangtze River basin of China, which often leads to hot damage of early rice in its filling stage so that will affect rice filling rate and yield components. Using phytotron simulated different daily maximum temperature, put potted rice plants in it for different high temperature treatments in the milky stage of early rice. The results showed...
The objective of this study was to convert wheat straw to metal ion adsorbent for waste water treatment. Ground wheat straw particles were modified with 0.5M citric acid to activate its natural adsorption capacity. The biosorption characteristics of Pb(II) onto modified wheat straw (MWS) gel, were evaluated as a function of pH, time, biomass dosage, initial concentration and temperature. Within the...
This paper differentiated and analyzed the coupling mechanism of stress and fluid flow in fractured rock mass. It pointed out that the structural plane between the water and the rock mass is not only a physical medium in the process of water-rock coupling, but also a mechanical medium. Then a seepage model has been proposed, i.e. “water-rock-structural plane” model. This model can describe the seepage...
According to shallow groundwater, extensive distribution of lowland in the Four-lake Watershed and local practice in agricultural production, more than 50 mm of rainfall is regarded as a rainfall that possibly produce water-logging in cropland. Analysis showed that this kind of rainfall is characterized by the following: most of the rainfall emerged in the first ten days of May and in the last ten...
Recent studies have demonstrated that the expression of aquaporin1 (AQP1) in endothelia cells played important roles in cell migration, and migration-associated cell function such as wound healing, and neutrophil motility. In the present study, we provided evidence that AQP1 expression in vascular endothelia cells (VECs) during angiogenesis was associated with MRTF-A. Morphology and immunofluorescence...
A take-and-place mechiansm is presented here. A study on kinematic problems of the mechanism is put forward and the inverse and direct solutions are obtained; the direct kinematic's resultant equation is an 8th order polynomial. Unique solution of the inverse kinematic problem is achieved, and then a numerical example is brought forward to verify forward and inverse kinematic analysis, in all of the...
At present, video delivery over the wired or wireless packet-switched networks has been motivating a series of researches into video encoding, quality of service (QoS), multimedia communication, and service models of networks. However, most of researchers lack a suitable video delivery simulation platform closer to the real video delivery system. Different from other existing simulation mechanisms,...
This paper decomposes market reaction to the release of restricted shares into early response and reducing effect, and constructs game theory model to make demonstration. The analysis found that it is the impact of reduction on stock price, expect cash yield rate and return rate of holding stock that decide the existence and stability of game equilibrium. In the decreasing market, the early response...
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