In the grid connection mode, many power generation companies prefer to install microturbine (MTG) as it provides high inertia to the system, requires less maintenance, high efficiency, able to burning many types of fuels as compare with another type of conventional power generation such a diesel generator....

The flow field of a herringbone grooved hydrodynamic journal bearing is numerically simulated by using FLUENT, a computational fluid dynamics software, to reveal the complexity of hybrid oil flowing. Influences of structure parameters on pressure distribution, static characteristics and cavitation are...

In order to avoid the mutual interference between UWB system and narrowband communication system, the ultra wide band antenna with notch characteristic on diamond shaped patch antenna is improved. The coplanar wave guide (CPW) feed structure and a larger groove rectangle etching on the ground and rhombus...

The design of a new phased array antenna for S-band is designed in this paper. The structure of the new antenna is based on the traditional microstrip quasi-Yagi antenna. The G type micro-strip line is designed on the back of the antenna for feed line. Two director elements and two driver elements are...

The paper proposed the automatic technologies such as onekey safety measure, and the examination of the safety measure ticket to solve the safety measure and misoperation problems of the secondary equipment in substation expansion, reconstruction and device maintenance. Firstly, after the analysis of...

Due to the complex structure of the elevator system and the complicated and diverse cause of the elevator operation faults, It is often difficult for maintenance personnel to comprehensively grasp the fault signs to determine the cause of the fault. Directing against this peculiarity, this paper proposes...

For the problem of low accuracy of temperature monitoring system, this paper proposed a multi-sensor data fusion algorithm applied to plant factory temperature monitoring system. First, Dixon criterion was used to eliminate the gross error in the measurement data, then the temperature data fusion value...

An innovative accelerated integral equation method is proposed based on a fast search algorithm for both shared and non-shared faces among mesh elements. This method successfully accelerates the computational process of solving for the tetrahedral coupling coefficients. By using the proposed accelerated...

The existing rehabilitation systems based on augmented reality (AR) are lacking of the targeted training of joint and requiring a large number of auxiliary equipment. This paper proposes a novel framework for wrist-rehabilitation assessment and training that integrates AR technology with kinesiotherapy...

As the full duplex (FD) technique becoming more sophisticated, a novel cognitive radio network (CRN) protocol called "listen-and-talk"(LAT) was proposed. Based on self-interference cancellation (SIC) technique, LAT protocol can promote the utilization of spectrum resources with the cost of the performance...

This paper proposes a generic construction of CCA-secure fully homomorphic encryption (FHE) scheme. First, we introduce a new primitive called multi-identity fully homomorphic encryption, which works in the multi-identity setting; that is, homomorphic evaluation can performed on ciphertexts created with...

In this paper, the identification method of Volterra series frequency-domain kernel is introduced from two aspects: parameter identification and non-parameter identification, then gives prospect. Volterra series theory has been applied and developed in recent years, becomes one of the most effective...

Closed-loop analysis method is proposed for pilot induced coupling with helicopter flight control system in closed loop. Combining with the longitudinal identification model of a certain helicopter, McRuer pilot model, designed stability augmentation system and frequency domain model are established...

Spacecraft is a complex electromechanical thermocouple system, which composed of several subsystems and thousands of products. The spacecraft assembly process is to assemble the products in the main structure of the spacecraft, and completes the relevant detection and testing. The spacecraft development...

The control parameters optimization of the servosystem in parallel robots, which is the basis of the control system design of the robot, is very important. In this paper, the parameters optimization of the servosystem based on the genetic algorithm method is introduced. In the servosystem of parallel...

The transmission and collection of satellite data will directly affect the success or failure of the subsequent satellite products. So the data transmission, the stability and efficiency of the collection, has been highly valued. This paper presents a distributed data transmission architecture, through...

With the globalization of Internet economy, the diversification of customer demand and the modernization of logistics technology, online shopping has become a very popular consumption pattern among many consumers, especially the younger generation. Online shopping mall system is realized by using ASP.NET...

A L-band high performance frequency synthesizer is presented for space TT&C channel. PLL+DDS+PLL structure is used to realize small step-size, high spectrum purity and low phase noise. Experimental result shows that its phase noise is better than -100dBc/Hz@10KHz and its spurious suppression is better...

Elastic modulus,which can be used as the the difficulty of material's producing elastic deformation is an important parameter in the engineering application.At present, the method of measuring modulus of elasticity is the original manual measurement. In this text, i want to talk about one method using...

Today, big data technology is growing rapidly. The birth of Hadoop makes people concerned about the study of MapReduce, And Spark through the introduction of RDD data model and memory-based computing model, So that it can be well adapted to the data mining of big data this scene, And superior to Hadoop...

Surface enhanced Raman scattering (SERS) spectroscopy has been reported as an ultrasensitive detecting method. Adding salts is a main way to induce nanoparticles aggregation to obtain giant enhancement of Raman signal. However, this method needs more procedures and the adding salts may interfere the...

In recent years, the number of Chinese aging population continues to increase, the design of public self-service aging population can effectively improve the social work efficiency based on social cost savings, solve some of the problems of an aging society. Through the analysis and summary of the needs...

Digital signature plays a more and more important role in e-commerce. The basic methods of digital signature are introduced and a digital signature scheme based on digital certificate is proposed in this paper. Digital certificate is generated after personal information is written. The effective data,...

Internet has changed the way of life and brought out the reform of traditional industries since the human being entered into the information era. Education has great changes, especially the higher education. All Chinese universities and colleges are facing opportunities and challenges. Universities and...

For the oscilloscope, spectrum analyzer and other analog circuit equipment measured characteristics of the narrow frequency range, slow frequency measurement, the design of the digital frequency based on a C8051F020 microcontroller. Frequency meter hardware part mainly includes C8051F020 microcontroller,...

In order to conduct the thorough research to the aero-engine, aiming at dual rotor-bearing system of practical aero-engine, a new dual rotor-ball bearing-stator coupling system dynamic model is established. stator motion, the flexible support, squeeze film damper(SDF)were considered in the model, meanwhile...

In industrial production and daily life, there are many occasions where wireless technology is required, especially in high-risk locations, where no wiring or unattended location can be found. This paper proposes an embedded wireless monitoring system based on GPRS , which uses the ARM processor as the...

As an important part of digital energy measurement system, the measurement accuracy of digital energy meter needs to be calibrated. There are some problems in the existing calibration methods. In this paper, a new calibration method has been proposed, which can be used to calibrate digital energy meter...

It is a difficult problem to precisely control a gasoline engine used by a Hybrid Electrical Vehicle (HEV) operating in high efficient states because of the engine's uncertain fuel consumption characteristics. The problem can be resolved by setting up an efficiency model for the engine to implement feedback...

At present, there is no theoretical equation for quantitatively calculating gas exchange losses of an internal combustion engine. In order to accurately research on change rules of the gas exchange losses during the working process of internal combustion engines, the equation for quantitative calculating...

With the rapid development of many types of social networks, the number of people involved in group activities is increasing, and thus group recommendation systems have been widely studied. This paper proposes a collaborative filtering algorithm to mine groups' interests. In view of the different roles...

The single particle crushing model is studied by EDEM software, and the model is extruded with different speeds and different angles. Using horizontal angle of 0 degrees, 20 degrees, 30 degrees, 45 degrees, 60 degrees, 70 degrees plate to squeeze the single particle model, the results show that the ore...

This study addresses the problem of pipeline opening measurement in SASOL pipeline gallery modules by proposing the use of an industrial photogrammetry method. The position coordinates of the pipeline opening in the local coordinate system were first obtained and then converted to the overall modular...

Highly-reliable and long-lifetime solid state lasers require the extremely high reliable assemblies over a long period of time. In order to shorten the test time, we apply step stress accelerated degradation test (SSADT) to assess solid state lasers' reliability. Firstly, the assumptions and introductionof...

This paper proposes a robust adaptive sliding mode control strategy aiming at the complex chaotic behavior of permanent magnet synchronous motor (PMSM). Using the sliding mode control technique, a time varying surface is constructed. Then an adaptive gain of the robust control law is established considering...

Offshore backfilling plough are used for backfilling for laying pipelines in seabed trenches; fenders are the primarily consist of an offshore backfilling plough; Research on the virtual join forces of the fenders is essential for predicting the join forces of the backfilling plough during backfilling....

In order to solve the problem of poor switching between wireless communication signals in traditional streetlight systems, the intelligent streetlight gateway based on ZigBee wireless sensor network and 4G network module is designed.[1,2]The gateway uses Freescale's ARM Cortex-A9 embedded processor as...

In the traditional casing and flavor preparing system, raw materials are mainly transferred to the tank through pipes, which brings the problems of material loss, flavor mix as well as low accuracy. In order to avoid flavor mix, a mobile tank casing and flavor preparation technique was developed and...

With the rapid increasement of the network speed and number of threats which hide in the network poses enormous challenges to network intrusion detection systems (NIDS). As the most popular NIDS, snort can run as a single threaded application. However, it may not be able to detect intrusions in real-time...

In recent years, people's living standards have been improved. The constant updating of things has kept people in the pursuit of fashion, a phenomenon that is evident in young groups. For the items that have been changed, they are often shelved or discarded, and the value of the goods is not fully represented....