Advances in Engineering Research

Electro-Hydrostatic Actuator (EHA) has developed rapidly in airborne flight control systems due to its compact structure, high energy efficiency and easy control. However, because of the strong nonlinearity of EHA system and external uncertainties, simple PID control cannot achieve the ideal control...

The emulsifying characteristics research of the produced liquid in weak base alkaline-surfactant-polymer lay the theoretical foundation for the process ofoil-water separation and the choice of operating parameters, this paper mainly researchs the degree of emulsification of produced fluid, the properties...

In the paper, we propose a novel ordinal regression method called minimum class variance support vector ordinal regression (MCVSVOR). MCVSVOR is derived from minimum class variance support vector machine (MCVSVM) which is a variant of SVM, and so inherits the latter’s characteristics such as taking the...

The oil and gas suspension is the important part of the type special vehicle. This paper introduces the working principle of the special type vehicle oil gas suspension system, and the multifunctional experiment debugging platform is designed based on PROE modeling technology, and it is used to inspect...

In this work, a new covalent triazine framework based on phthalazinone-containing dinitrile building blocks was prepared by the dynamic nitrile-trimerization reaction. The FT-IR spectra of BCTF illustrated the characteristic peaks of the triazine at 1503 cm-1 and 1360 cm-1. The nitrogen sorption isotherm...

The generic protocol stack for wireless sensor networks including: physical layer, data link layer, network layer, transport layer, application layer corresponding to the five layer protocol of the internet. Design of wireless sensor network routing protocol is affected by the characteristics of network,...

The power system application of the infrared thermal imager is introduced in this article. By analyzing the special requirements of power system applications, several important performance parameters of the infrared thermal are summed up. This paper presents a more comprehensive calibration test method...

Carboxylated polystyrene particles were synthesized by batch emulsion copolymerization of styrene (St) and methacrylic acid (MAA) at 70 °C for 7 h. The effects of introducing time and amount of emulsifier SDS on the polymerization and properties of polymer particles were investigated. Results showed...

A readout circuit for capacitive pH sensor is designed and simulated by Spectre of Cadence software with TSMC 0.18 m CMOS process technology. It consists of a capacitance-voltage measuring circuit, a modulation and demodulation circuit, a instrumentation amplifier and a low-pass filter. The simulation...

The differences between coral sand and siliceous sand have been ignored until the large development of construction in coral area. In order to investigate the influence of physical property on the engineering property for coral sands, this paper reviewed the previous research literatures and summarized...

Modeling and simulation of complex systems in nature and society usually involves multidisciplinary studies. In many simulation systems, it is necessary to develop models using different modeling languages and tools. As a result, it will be a big challenge in the modeling of the whole system and collaborative...

As a kind of magnesium rich material, magnesium olivine has been proved to be a kind of artificial wetland substrate, which has a good effect on phosphorus removal. Therefore, it selected firing of the magnesium olivine under the 800 , 1000 , 1600 as the research object. The characteristics of phosphorus...

With the continuous development of power electronics technology, static synchronous compensator (STATCOM) structure increasingly multiplex. When the load current check point and the compensation injection point of STATCOM in different position and exist the difference of the phase and amplitude, which...

With the deepening of the new round of electric power system reform process, the provincial Power Grid Corp will be under the new electricity reform policy proposed the corresponding reform program. This paper first analyzes the background of a new round of electricity reform and the current situation...

Chromium migration and transformation is a complex process in groundwater-rock interface, including a series of physical and chemical reactions, such as adsorption-desorption, redox, dissolution-precipitation, complexation-dissociation etc. It was affected by groundwater pH, Eh, the type and the content...

Transformers in operation is accompanied by certain acoustic signals, and the acoustic signals can reflect the running state of the transformer to a great extent. In view of the characteristics of transformer fault and the principle of acoustic signals generation, a transformer fault monitoring device...

The research object is complex-resistant grape varieties. Intensively growing green shoots of grapes were taken as initial samples which were cut into single-eye cuttings and then meristems were extracted in laminar boxes. Experiments have shown that regeneration of shoots from extracted apexes occurred...

In traditional book retrieval system, users may not provide accurate information about what they want to query because of the restrictions of expertise,so that they can not get a good result. We provide a new method.First,got set of user's friends and interesting_libraries from his profile.And then,used...

The change of reservoir water level will affect the stability of the water, mainly in the soil pore water pressure changes and slope sliding surface parameters of the two aspects of weakening. The stability of the slope is analyzed, the results show that the stability of the slope due to the existence...

The open circuit voltage (OCV) of lithium ion battery is a key parameter for hybrid electric vehicle (HEV) to estimate the state-of-charge (SoC). And its instability will lead to big error of SoC estimation and have difficulty in implementing the dynamic control strategy of HEV, especially when the lithium...

Stereo vision is a non-contact method to realize 3D reconstruction of free-form surface, and has a wide range of applications in the field of reverse engineering and virtual reality. The technology of camera calibration has always been the research hotspot and difficulty. In this paper, firstly the experimental...

Rheological characteristics of bitumen can describe the resistance of bitumen to temperature variation and traffic loading well, which is linked to the in-service behavior of actual bituminous pavement. Modern theory of mortar denotes the study on rheological property of mortar is an important role to...

Due to the diversity of the construction market, we need to select from a large number of typical projects as the research foundation to compile the cost index. Reasonable screening process and method plays as an important factor in the determination of the accuracy of the final result. This paper recommends...

Dynamic analysis method is used in this paper to analyze the dynamic response of planetary gear train with two degrees of freedom under the conditions of the start-up and load step change during operation. The results show that the angular velocity relationship between the components under steady-state...

A submicron polyimide film (

In order to improve the information management level in the process of automobile tire tread production, the actual condition for the tire production process is analyzed in this paper. The information management system of the extruding line in the process of automobile tire tread manufacturing is designed...

Drive system of generator is an important part of wind turbine, once the fault occurs it will cause huge economic losses. For this reason, in this paper, a fault diagnosis method is proposed for generator rolling bearings, it combined with wavelet packet and support vector machine. Acquisition of wind...

In order to improve the surface quality of the cold roll-beating workpiece and explain the surface hardening behavior of the workpiece, an experiment on the microhardness and scanning electron microscopy of a cold roll-beating workpiece was carried out by using involute spline as the subject. The changes...

A real-time accurate detecting the risk of an impending vehicle rollover is essential for active rollover avoidance systems. To this end, a 4DOF nonlinear vehicle roll dynamics model is developed, which fully exploit the coupling effects between the yaw dynamics, lateral dynamics, and roll dynamics....

This paper introduces the status quo of current heat treatment procedure of aluminum alloy castings,Heat treatment furnace burner uses cold air as a fuel and the resulting emissions are directly discharged to the atmosphere instead of being recovered, so a great number of residual heat resources are...

A pot experiment was conducted to study the effects of continuous shade stress during procreation growth stage on isoflavone and lignin accumulation in developing soybean seed. The results showed that continuous shade stress during procreation growth stage could improve the isoflavone and lignin accumulation,...

Drone detection refers to the process of identifying the presence of unmanned aerial vehicles (UAVs) or drones within a specific airspace. This technology has become increasingly important in recent years due to the growing popularity and use of drones for both civilian and military purposes. With the...

The thesis explores the adsorption of 732 cation exchange resin to remove the excessive amount of iron and manganese in the low-temperature groundwater. The removal effects in different temperature and filtering velocities are analyzed by testing the effluent water quality and measuring the volume of...

Reactor pressure vessel (RPV) is exposed to deadweight, pressure, heat expansion, seismic load, pipe loads and etc under operating , accident and hydrostatic test conditions. Due to geometric discontinuity, the nozzle belt is reluctant to stress concentration, which is the key part in structure analysis....

The extracting technology of algin from kelp and the preparing technology of edible fresh wrap from algin are reported by this paper. Firstly, the crude algin was extracted from kelp, which was purified by the methods including solid-liquid separation, precipitation, bleaching, transformation, dehydration...

The article discusses the analysis of the influence of the connecting hole diameter on the amount of the mixture, flowing from the basic volume to the additional volume at the compression stroke in the prechamber engine. The resulting mathematical model allows one to accurately determine the amount of...

Simple supported-to-continuous girder bridges are commonly and widely used in bridge engineering in China. For this type of bridges, normally, the longitude connections are casted in-site by concrete. The quality of the casted concrete is difficult to control. After a large number of field surveys, damages...

In order to detect the accurate oil-water interface in the oil storage tank in real time, the paper designed a portable oil-water interface detector. It adopts the oil-water detection method based on the near-infrared absorption spectrum theory to determine the exact oil-water interface cut-off point...

China is the world's largest coal production and consumption country, coal accounted for 76% of energy consumption of goods, which is also the main source of air pollution in China. Therefore, the development and utilization of renewable energy, improvement of the existing energy structure and active...

The internal force analysis for reinforced-concrete structural members is calculated mostly according to the elasticity approach, which increases the amount of reinforcement. The present experiment reveals that if the calculation approach, in which the internal force redistribution after the formation...

Arterial Highway is usually the only highway of its region. Once reconstructed and extended, it will has significant impact on regional traffic. So, research on traffic organization during reconstruction and extension of arterial highway appears particularly important. Aiming at the special situation...

The dorsal scale of Laudakinstoliczkanain desert has good performance of erosion-resistance because it is composed of protein "soft" layer and the covering of the cuticle "hard" layer. In this paper, we simplify it to a layered structure called a bionic layered structure(BLS). Based on it, a numerical...

The purpose of this study is to conduct qualitative analysis on the adulteration in peanut oil by combining data fusion of Raman and near infrared ( NIR) spectral characteristics with chemometrics methods With laser Raman and NIR spectrometer the spectra of 134 adulterated oil samples and 24 pure peanut...

The modern tram has both the attributes of rail transit and bus. Based on the point-line-plane planning method in public transportation and urban rail transit network planning, this study considers the tram line Network, the characteristics of the line, including the length of the line, the node choosing,...

This paper mainly studies the technology of accurately positioning the imaging position through the changes of shadow length in video. 3D modeling software SketchUp is applied to conduct hidden line processing on images and obtain the actual shadow length of objects in the video. Take into account the...

In order to predict the water situation in 15 years, this paper develops Bayesian Artificial neural network system. The directed cyclic graph is built and the conditional probability tables are calculated. It represents the relationships among variable nodes in the graph. The Bayesian network makes the...

A set of onshore ballast water treatment equipment utilizing micro-pore ceramic filtration (MPCF) and UV radiation (MPCF&UV) system was designed and set up with a maximum flow rate of 80 m3•h 1. Technical feasibilities of MPCF&UV system were evaluated in three areas: removal efficiencies of indicator...

Forward osmosis (FO) process is a new membrane separation process that developed in recent years; it is driven by the osmosis pressure difference of solution on both sides of membrane. Forward osmosis process don’t need to force energy-driven extra, and the main energy consumption of the whole craft...

In this paper, the 1082 orbits CCD camera data of Chang'e-1 satellite (2c Data) are processed and sorted, using professional remote sensing software such as ENVI ERDS NASA PDS Viewer etc. to generate the full moon image map. And the spatial resolution is 120m which lays the foundation for the census...

With the Arduino microcontroller the battlefield EOD robot is composed of double body connecting with double joints, and all of the wheels composed of double track and vice round to carry and to facilitate its adapt to a variety of complex topography on the battlefield. Double joints can be very good...

Geological disasters are always induced by excavating in extra-long tunnel engineering. In order to ensure safety in construction process, the ground penetrating radar (GPR) has been used to measure adverse geological conditions in front of the tunnel excavating face. Application experience of GPR in...

In order to get a perfect element-wise response to verify the basic mechanical properties of one soil, a hollow torsional test is usually preferred because its stress condition is more similar to the element response. However, during the torsion process, there is still more or less non-uniformity influencing...

This paper gives a brief introduction of chaos, digital water-marking and the application of chaos digital water-marking and information hiding. Then it analyzes the main difficulty in corresponding research that hidden information should have strong robustness and invisibility which contradict each...

With the advantages of low energy consumption and zero emissions, pure electric vehicles are tent to be the substitution of the traditional vehicles. However, there are a lot of electric frames still made of welded square steel and angle iron, it can increase the intensity of the frame by this way, and...

To accurately diagnose the mechanical failure of fan, the method based on the symmetrized dot pattern (SDP) analysis and improved Back Propagation (BP) neural network is proposed. Vibration signals acquisition of 13 kinds of running states were achieved on the 4-73 No.8D centrifugal fan test rig and...

Based on Activated Sludge Model NO.1 (ASM1) in wastewater treatment plant (WWTP), the models of single-feed and step-feed process were established. The components removals in two types of feed processes were simulated by Matlab Simulink. The results show that organic matter removal and heterotrophic...

Saturation oxygen is an important biological indicator for the respiratory and circulatory of the human being. Many clinical disease can result in insufficient oxygen supply, which will directly affect the normal metabolism of cells, a serious threat to health, so the real-time monitoring of arterial...

Intelligent data mining model is designed from the source database mining association rules that satisfy the minimum support and minimum confidence. Semantic segmentation technology is through the analysis to find out the meaning, structure meaning and significance of the combination, so as to determine...

Electric power communication network is an important part of power system, which plays a vital role in the operation of power network. This paper established an index system of electric power communication network and proposed a diagnostic method of electric power communication network system based on...

The Aluminium alloys have seen a tremendous growth in the last decade in its applications among all the industries owing to its accessibility and other desirable characteristics such a high strength-to-weight ratio, resistance to corrosion, heat conductance, and a durable nature etc. The Aluminium alloys...

In today’s society, with the vigorous development of various undertakings, drones have been widely applied in numerous industry fields. This trend has driven the rapid evolution of drone systems to adapt to diverse application scenarios. However, existing technologies and systems have some minor issues...

The non-linear creep behavior of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)-based polymer bonded explosives (PBXs) with different binder content has been measured under different stresses and temperatures. Reduced creep strain and steady-state creep strain rate and prolonged creep failure time were...

Energy internet, the results of deep integration of the energy system and the internet, is an important infrastructure to solve high-permeability of renewable energy generation in the future grid. Energy Local Area Network (ELAN), a network consisting of an energy router and its attached multiple end-users,...

Rapid construction of electric power systems leads to a large increase in quantities of network nodes and data, complicating network reconstruction issue significantly. However, the traditional serial algorithms can not reach a satisfactory computation speed; while some proposed parallel algorithms prior...

This paper puts forward the necessity of active adoption of passive energy saving technology in buildingreconstruction in our country firstly, and then combining practical projects,and the ecological reconstruction theory of Existing Buildings, analyzes and concludes five commonly used passive energy-saving...

With the implementation of new pattern urbanization, the smart city construction in China is gradually out of the stage of project and conception, and switching to the stage of exploration and practice. Intelligent property is the important component of smart city. With recent years’ development, property...

To study the effects of DC field on development of the cells in Enteromorpha prolifera, We get single cell of Enteromorpha prolifera by the method of enzymolysis and after giving them the stimulation of electric field, cells development show up three directions: 1, producing with obvious polarity, the...

Equal-gain combining (EGC) is a conventional linear combining scheme used in non-coherent energy detection receiver for ultra-wideband (UWB) signals. However, due to the nonlinear nature of decision boundary, the EGC results in a suboptimal test statistic. In this paper, we propose a new design for a...

The influence of growth regulators was studied based on yield and quality of table variety 'Moldova' and by the dynamics of post-harvest storage. The use of growth regulators during 30% fungicide load reduction enhances the weight of grapes and berries harvest by 11-14%, increases the mass concentration...

Sanguis draconis is a precious traditional Chinese medicine, but it is not soluble in water, and it is difficult to use in type of injection. Sanguis draconis has a low bioavailability, because the coarse particles of draconis can be absorbed very little. In present research, solid dispersions of sanguis...

Wind power has important effects on the stability and economic operation of power grid with its strong randomness and volatility, which become the important restriction factor of wind power generation. In order to have a good prediction effect on the volatility and uncertainty signal, the article proposes...

Military conceptual model can help achieve the consistent understanding between experts and developers and strengthen the normalization of military simulation modeling and reusability of simulation model. To solve the problems (loss of modeling elements, non-standard description and so on) appeared in...

Through the foam concrete block cement type, water reducer type, content and tailings using water reducing powder content of the different experimental groups, analyzed the relationship between raw material composition and amount due to compressive strength of foam concrete and different effects of moisture...

With the rapid development of urbanization, the disposal of construction waste has caused wide attention by scholars. This paper introduces the status of construction waste resource and relates studies in China and summarizes the construction waste resources of the industrial chain operation dilemma...

This paper discussed the operation principle of reheated Rankine cycle according to the first law of thermodynamics and proposed a method to acquire the optimum reheated pressure ratio based on the highest cycle thermal efficiency. In order to verify the rationality and validity of this method, this...

The development of the adsorption refrigeration technology was relatively slow, and the COP of the adsorption refrigeration system usually indicated as 0.2 to 0.3 only in experimental reports. The lower refrigerating efficiency (COP) of the adsorption refrigeration technology has become the bottleneck...

In view of high-power LED microchannel phase-change cooling system, scientific problems, such as boiling incipience, flow pattern, heat transfer character, pressure drop and heat transfer instability are summarized. Proposing simultaneous measurement and analysis of phase-change cooling flow pattern,...

With the development of economy and the improvement of personal consumption, the demands of people for consumer goods are becoming more diversified and individualized. In recent years, the personalized shoemaking system is favored by market, and the traditional shoemaking industry needs new technologies...

The mobility and intelligence of Agent make it have a very good application value, moreover, the study and application schemes on Agent model for embedded mobile devices are rare, so the article proposes an Agent model for the demand of embedded mobile devices business applications, which is consist...

Nowadays the infectious disease has greatly affected our life. Infected persons and deaths have reached a record high . And it is still in the state of deterioration. Therefore, I try to establish a predictive model of the current virus spread .Aiming at the spread of infectious diseases, Professor Kermack...

Daqing oilfield was put into production in 1960. Excellent achievement is acquired. It has maintain the production of 5000ž104 tons / year for 27 years and 5500ž104 tons / year for 13 years. Main technologies adopted in Daqing oilfield include early-stage water flooding for pressure maintenance, separate-zone...

In order to improve the measurement accuracy of the non-contact laser coordinate measuring machine, both the error model of coordinate measuring machine and laser measurement are built based on blade measurement. The influence of the surface color and surface inclination angle of the measured object...

In order to keep the farm machines straight in the agricultural production process, the straight-line navigation system for farm machines based on mobile internet technology and inertial navigation technology was developed. Straight-line navigation system consists of sensor subsystem and the Android...

Under the Solidworks design environment, the modeling of folding chair based on the omnidirectional mobile rescue platform has been finished. This integral structure design can achieve two functions of transshipment goods and manned patrol, and the electromagnetic clutch is used to control the chair...

In order to realize the automatic measurement of total sugar content in the process of chlortetracycline (CTC) fermentation and optimize the carbohydrate supplement adjustment process, we designed the digital signal processor TMS320F2812 as the core of automatic measurement controller. The functions...

The Ni-Co/HZSM-5 methane dehydroaromatization (DHA) catalyst was prepared using wet impregnation. The catalysts were characterized by XRD, TEM, TG-DSC, FT-IR and XPS techniques before and after reaction. The results show that the maximum conversion rate of methane DHA at 580 reached 39.8%. The carbon-silicon-oxygen...

A pot experiment was conducted to study the effects of spraying exogenous melatonin (MT) on growth and physiological characteristics of Chinese cabbage seedling under 50 mmol-L-1 NaCl salt stress. The results showed that exogenous MT could promote the growth of Chinese cabbage seedlings under salt stress...

This work designs a hydroponic nutrient control system using Arduino Uno as the control center. This control system is not directly applied to hydroponic installations but is only limited for observing the performance of control system within a predetermined nutrient range. When the system starts working,...

The data of the electric power information acquisition system can generate mass data by the accumulation. It is a question to store the data as the increase of sampling frequency. Facing the data properties with large scale and larger gathering density, it will be less efficient if the past technology...

The paper applies CFD numerical simulation technology, selects the typical urban commercial block as the research object, uses PM10 which are from automobile exhausted gas as the source of pollution, simulates the spatial density distribution of the inhalable particle, verifies the accuracy based on...

The new kind of pedal pump that handling easy, safe and reliable, versatile was designed, its working principle was detailed shown. on the condition of meeting the design requirements and the actual, its' mechanism was the developed and optimized by the type synthesis of mechanisms and virtual prototype...

In this paper, According to the idea SIFT algorithm, proposed an improved algorithm ORB. Based on the multi-scale space, detecting scale space extreme points, then use the ORB descriptors to describe the feature points, generated descriptors having rotating invariability. Using Hamming distance to achieve...

In this paper, natural frequencies of axially moving beams on fixed supports are analyzed based on Timoshenko model by performing the Galerkin method and the differential quadrature method. Some numerical examples are presented to demonstrate the effects of related parameters on the frequencies, such...

In order to improve the ship shaking disturbance and wind loads on the disturbance of shipborne antenna tracking performance, position loop design of ADRC (LADRC). First, the modeling system disturbances and not as a comprehensive dynamic disturbance, to a certain type of ship azimuth servo system as...

In the article, the method of early diagnostics of nascent defects of mechanical assemblies (friction nodes, bearing pairs, gears) is considered by on-line determination of high-order statistical moments of the vibro-acoustic signal. To determine such statistical moments, a parabolic spline approximation...

Conducted a series of experiments of upsetting of steel samples. Theoretically developed and experimentally verified a fundamentally new way to control the properties of the processed metal by changing the rigidity factor of the system processed material - deforming tool.

How to handle the relationship of environment and industrial coordination development and promote sustainable social and economic development is a hot topic in present social studies. This paper constructs sustainable development evaluation index system and establishes function of sustainable coordinated...

The vibration and noise of the motor is a significant factor to evaluate the quality of the motor and the modal analysis is one of the main approaches to study the structural dynamic characteristics of motor. The motor will be in the resonance state when the excitation frequency of the harmonic electromagnetic...

During the last decade, the sensors based on chitosan had been an active research topic due to its great practical value. The sensors had showed excellent superiority, low cost, ease of fabrication, fast response time and nice repeatability. This review discusses the preparation and application of sensors...

This article designs a new model based on the BML model. The new model embeds bus elements and passenger elements, and cancels the original operation direction limit and odd/even time step setting. And this paper use control variate method to analyze influence of the number of taxis, the number and position...