Search all articles

In view of the important status of steam turbine in power system, continue to strengthen the theoretical research of the technology of fault diagnosis, to avoid accidents so as to improve the operation reliability of steam turbine, it is necessary, and combined with the needs of fault diagnosis, the...

The flowing condition and the pressure on inner surface of ethylene in the 90°elbow pipe were simulated by means of FLUENT software, on the condition of 4 kinds of fluid density , fluid inlet velocity v, fluid outlet pressure P0, degree curvature k=R/d respectively. The database of elbow pipe pressure...

For the hospital disinfection center, operating room and dentistry and other medical equipment after sterilization sealed package to provide a perfect solution.ARM as the core processor, to control closed-loop temperature sensing heating system, through the capacitive touch LCD screen using graphical...

Based on the analysis of current situation and development trend of science and technology innovation team in colleges and universities, the suggestions that the cultivation of innovative talents should better depend on the development of science and technology innovation team have been put forward,...

To replace steel slag for natural sand completely, the mix proportions of steel slag in concrete was adjusted according to tab density and replacement ratio of Metakaoline/Cement were established. And then testing for slump, setting time, and compressive strength was conducted. According to test results,...

Due to various influential factors, professional directions and characteristics of traffic and transportation varies among universities. This paper, taking Jiamusi University for example, discussed the specialized curriculum system of traffic and transportation major in the context of large engineering....

In semantic segmentation, category-hidden attack is a malicious adversarial attack which manipulates a specific category without affecting the recognition of other objects. A popular method is the nearest-neighbor algorithm, which modifies the segmentation map by replacing a target category with other...

There are a lot of iron particles in the steel slag powder that can be recycled. In this work, the technological parameters of dry magnetic separation were optimized and the screening processwas used to replace the traditional magnetic separation process by low-intensity magnetic field.Somore than 80...

In-depth analysis of the composition and working principle of the anti-lock braking (ABS) system hydraulic control unit (HCU),establish the mathematical model of the major components of the solenoid valves, motors and pump, establish the model of the HCU in the MATLAB / Simulink environment . By simulation...

Based on the molecular motion and collision law of the gas in the aerostatic guide way of inflatable support area, proposed the stratification theory of the gas film, the gas in inflatable support area was divided into near wall layer, thin layer, continuous flow layer along its height direction, proposed...

The paper analyzes the layout structure and working principle of driving axle performance closed test bench. The design concepts of test bench drive mechanism and loading mechanism are described on the basis of confirming the design scheme. Layout reasonability of the design structure is analyzed, and...

To study the adaptability of freight transport supply and demand structure of urban agglomerations, the mechanism of demand and supply of freight transport in urban agglomeration was studied and the theory of freight transport structure of urban agglomeration was put forward and demonstrated. First,...

ETA (Electronic Travel Aids) is an important method to guide the visual impaired to navigate, in which avoiding the obstacle effectively is the most essential content. A novel wearable ETA system and corresponding algorithms for obstacle avoidance based on binocular stereo computer vision were proposed...

In cognitive radio system, secondary users are difficult to obtain the CSI (channel state information) of the interference channel from the primary users which have absolute right of the spectrum sharing with secondary users due to the unlicensed utilization of spectrum resource. In order to guarantee...

This work conducts a systematic analysis of Malleus Maleficarum to understand medieval witchcraft. The analysis was divided into four parts. The first part is the introduction about the author Heinrich Kramer’s and Jacob Sprenger’s background, intention, and how their identities as members of Dominican...

The high voltage source of electrocurtain requirements for high power factor, high efficiency, output DC high voltage of low ripple, fast fault response. In order to improve the parameters to design a high voltage source which based on three-phase buck type PWM AC chopper. It has advantages of simple...

Considering the errors of the restrictor and the hole in the form of ellipse, the influences of assembly position of annular slit restrictor and the errors value on stiffness coefficient and damping coefficient of hydrostatic guideways are investigated. It is shown that assembly position of the restrictor...

As the core of the Bohai economic circle, the Beijing-Tianjin-Hebe region's economic development occupies an important position, but the industrial structure condition of Beijing-Tianjin-Hebe region is not optimistic. Based on the statistical data from 2005 to 2012, this article analyzes the Beijing-Tianjin-Hebe...

The limit equilibrium theory is employed to analyze the bottom stability of foundation pit, a method that is used to calculate stability coefficient of resisting upheaval in accordance with deterministic mass property and sliding mode. The deterministic model for the analysis of bottom stability that...

The interface bond damage between the slab and self-compaction concrete is one of the most common damages of CRTSIII slab track. According to the CRTSIII slab track structure characteristics, an finite element mechanical analysis model of track structure was established, which include rail, track slab,...

In this work, a sensitive E-DNA sensor based on avidin modified electrode and DNA-functionalized Au nanoparticle (DFNP) was developed. The DNA-Functionalized Au nanoparticle contained two kinds of DNA, one was hairpin probe DNA with a biotin at the 3’ terminal and a thiol at the 5’ terminal, the other...

Based on the mathematical model analysis of the three-phase voltage source PWM rectifier under abc reference frame and dq reference frame in this paper, a kind of three-phase voltage source PWM rectifier feed-forward decoupling control strategy is proposed. The inner current and the voltage loop of double...

The redevelopment of abandoned coal mine land and the creation of recreation space in cities are two significant elements for fostering urban more sustainable development. This paper presents an systematic perspective on plan strategy making, and examines how Jingxi ACML recreation system may combine...

State-owned enterprises has seized the important “window period” to promote the reform of tenure system and contractual management of managers, and ensure the implementation of the reform with greater strength and effectiveness. However, in the process of implementation, there are many difficulties and...

Ideological and political education course is mainly responsible to carry out ideological, political and quality education and therefore it is of great significance. However, traditional ideological and political education adopts single and stereotyped teaching model and teachers cannot fully play its...

Wu Wei was the representative personage of Zhejiang painters. His lightsome ink and wild painting style attracted many people. He then became an unusual talent in painting history of Ming Dynasty. People who read Baqiao Bridge Snow Figure would feel rustle in the air at first, but then would find it...

With the full implementation of the tenure system and contractual management of managers in state-owned enterprises, it has accumulated rich practical experience and achieved remarkable results. However, due to the short implementation time of contractual management of managers, in the specific implementation...

This article related to industrial engineering theory in enterprise production management, by way of example describes the basic idea of the method a company truck assembly line balance improvement. Combined with the practical problems in production line system analysis, and put forward the feasible...

This paper presents an effective method of NC machining cutting parameters optimization. For a given machine NC code, we use the secondary development tools provided by VERICUT software, the time series segmentation algorithm of sliding window technique, back stepping method for getting the feed rate...

Aiming at the problem of more and more traffic accidents which are caused by the driver behaviors, this paper designs a lane departure warning system based on the ADSP-BF561 processor. Vision sensor is used to capture road images, while the driving parameters are collected by the microprocessor. The...

An approach of medical image retrieval by combining diagnosis text and image content features is presented in this paper. In this approach, the system firstly extracts fusion features and semantic content from images and related text in medical resource database. In the second stage, a multi-modal query...

Through the development of more than half a century, from construction technology to design ideology, Chinese architecture is always lagging behind or in the process of learning, which not only caused the collective confidence missing in national traditional culture but also led to the all same pattern...

A target simulator based on ADSP-TS201 was designed and implemented for researching and testing torpedo homing system. A multi-DSP parallel processing system was used as the hardware platform to generate element signals in real-time, and then the signals were provided for the torpedo homing system. In...

The Cu2-xSe nanopowder was synthesized by the hydrothermal method. The electrical transport properties of Bi1.975Na0.025Ba2Co2Oy + xwt% Cu2Se (x = 0.00, 0.25, 0.50, 0.75, 1.00, 1.25, and 1.50) ceramic samples prepared by the solid-state reaction method were investigated from 300 K to 898 K. The Cu2-xSe...

Deforming process of FS (flexible spine) tooth is studied, its bending deformation and shear deformation are analyzed, and stiffness expression is concluded when FS tooth meshes into completely. FS cylinder torsional stiffness is analyzed with theoretical calculation and finite element analysis, the...

Using natural dye Ginkgo leaves as raw materials, the dye liquid was extracted by microwave method, water bath method and ultrasonic extraction method, and the suck photometric of this three extraction liquid were tested. The 25 tex cannabis/mulberry fiber/wool 60/20/20 blended yarn was dyed by the extracted...

A novel ultra-wideband ( UWB) antenna is proposed in this paper ,which has a band-notched characteristic for the interference between the UWB applications and the IEEE802.11a wireless local area network (WLAN) and the WiMAX /C-band with combination of notched structures. The proposed antenna fed by coplanar...

The paper analyses The Innocent at the base of the love story to unfold the theme. The first part of the paper summarizes the paper and its context. The second part introduces Ian McEwan's writing inspiration and the social environment that the writer set in The Innocent. The third part analyses the...

The internal flow characteristics of an LNG (liquefied natural gas) nozzle strongly influence spray formation and atomization. A numerical simulation model of an LNG nozzle was created to investigate the location of cavitation in the nozzle and analyse the causes after the feasibility of the numerical...

Power transformers are key components in the stable operation of electric power system. Reasonable arrangements of maintenance strategy according to transformers’ working condition can decrease the loss lead by transformers’ faults. The dissolved gas analysis (DGA) is the widest technique used in transformers’...

This paper discusses the uncertain portfolio selection problem when security returns are hard to be well reflected by historical data. In portfolio selection, risk analysis is one of the most important topics and research on quantitative definition of risk remains core of the topic. A new risk measure...

The flue gas flow from thermal power plant is an important standard in the environmental monitoring process to judge whether the procedure need improving. Because of the low flow of SO3 and its profound impact on the environment, it is hard but necessary to monitor the precise content at present overall....

University practice teaching is an important Experiment practice step in college quality education system. It can cultivate the high quality of various types of engineering and technical personnel with innovative ability, to meet the needs of economic and social development. But at present, there are...

In noisy condition, the accurate measurement of Lipschitz exponent is very important for many actual applications. All the modulus maxima are utilized to estimate Lipschitz exponent in each maximum line in traditional wavelet transform modulus maxima (WTMM) method, but as the positions and wavelet coefficients...

Scratched alkyd varnish coating (AVC) with isophorone diisocyanate (IPDI) microcapsules as functional additives display self-healing properties. Here, we investigated the mechanism of the self-healing process using a water trigger in seawater. FT-IR spectra of the self-healing products in the scratched...

Most active noise control (ANC) algorithms require the identification of the secondary path, thus suffer from large complexity, increased residual noise power and algorithm divergence. In this paper, we propose a novel ANC algorithm without secondary path identification based on Kalman filter, referred...

Economic development, education will rank the first position. Higher vocational colleges talent training should meet the needs of regional economic development, the Pearl River Delta region have significantly different development characteristics with other regions. The talent training mode of architectural...

Magnetic iron concentrate beneficiation process, in order to improve the grade of iron concentrate powder, electromagnetic magnetic separation equipment can be used to realize. The use of PLC technology, PID control of self-optimization control algorithm, by controlling the magnetic field intensity and...

Massive open online course (MOOCs) is a new teaching and learning mode appearing in the current education field. It has aroused the extensive concern of all walks of life with its "giant" students scale, its "diversity" of students’ identity and its "people-oriented" teaching model. Metacognitive strategy...

The establishment of Chinese garden aesthetics can be traced back to the era of the Wei (220-265 A.D.), Jin (265-420 A.D.) and the Southern and Northern dynasties (420-589 A.D.).The specific historical conditions forced the literati-official class to ignore politics, indulge themselves to natural landscape...