Advances in Engineering Research

Aiming at photoelectric current transformer technology, this paper analyses the principle of passive and active transformer firstly, then discusses the main technical difficulties in this area currently and the development of optical current transformer. We hope all above can play a reference role for...

Al2O3 ceramic has the advantages of high mechanical strength, high temperature resistance, oxidation resistance, high hardness, chemical resistance and so on, due to its brittleness,that has restricted the more wilder application. This paper introduces the research state of Al2O3 ceramic toughening,...

A distributed hybrid renewable energy system for a household is studied and evaluated based on the data of electrical consumption and renewable energy resources. The hybrid system is comprised of a wind turbine, PV arrays, a biodiesel generator, batteries and converters. The aim of this study is to design...

The whole wave band CCD system is widely used for examining purple outside , visible light , infrared picture high-resolution show and professional pattern process equipment in real time. It can visible light picture turn visible light picture into in real time , can realize faint collection and high-quality...

Vocational High School (SMK) aims to produce graduates who are competent and ready to work. The competence of SMK graduates must be in accordance with the needs of the Business World / Industrial World (DU / DI). The industry’s need for manpower is not only based on hard skills and soft skills, but also...

The demand for efficient DC-DC converters capable of providing significant voltage step-up with minimal losses is critical in numerous applications, such as portable devices, electric automobiles and energy-efficient systems. Among the various boost converter topologies, the Boost Converter is widely...

Based on mechanical analysis of main beam structure in track hanging, the design optimization problem of weight of the girder structure was transformed into solution of optimal parameters values under mechanical constraints optimal parameters. Adopting structure geometry value as input parameters, structural...

In this paper, a specific florescence detection system for florescence isothiocyanate (FITC) was developed which could be controlled by the intelligent mobile phone through Bluetooth. FITC is a popular fluorescent dye in biological application. According to its fluorescent characteristic, the light emitting...

First,we analyze the effects of the bubble and human action on the model.Finally, we discuss the change of water temperature and plan when room temperatures changes.We take the water as surface layer and inner layer.There is static air storing in bubble.According to formula of thermal resistance of air...

Greedy algorithm is a common-used method to solve many different types of problems. Researches were done a lot that use greedy algorithm to solve classical transportation problems. This paper discussed how to apply greedy algorithm in transportation problems with warehouses location. The main idea of...

In this paper, in order to improve the thinking ability and get faster and better innovative ways in designing procedure, functional surface ,assembly relation and the knowledge representation method for instance is chosen as the emphasis of this paper .By studying the relationship between functional...

In this paper, we discuss the phase change flow of network and the change law of the network performance under different traffic input rates. Based on the stability conditions of the nodes and the system, the approximate expressions of the phase change flow of the network traffic are given. We also derive...

This paper presents an embedded terminal design based on ARM11 to implement multimedia information sharing and relay transmission between wireless terminal devices. Multimedia collection and wireless transmission to each other are easy to be realized based on an embedded board combined with a CMOS camera...

In this paper, based on the chemo-thermo-poroelasticity model of saturated porous medium undergoing the local thermal non-equilibrium (LTNE) conditions, the pore pressure and chemo-thermal stresses around a spherical cavity in an infinite fluid saturated porous medium subjected to sudden variations for...

In this paper, a new variable step size LMS algorithm based on cosine function is proposed. The weak signal is difficult to extract, so we constructed a new relationship between the step size and the error signal, which depend on the mathematical transformation of the cosine function, and also analyzed...

This paper introduces an adaptive merging method between point clouds from optical scanning system. The point clouds will be wrapped in the form of triangulated mesh. One is used as feature data, and the other point cloud as target data. Then the special mesh region that needs to be updated is automatic...

LUCC (land use and land cover change) has become one of the hotspots in global change research. Through literature induction, there are some differents between Chinese and foreign scholars in research direction and technical methods. Chinese scholars focus on researching changing laws, driving forces...

Safety is crucial in the shipping industry, however in the current export container activity there are many factors that can cause an accident. To prevent an accident, regulation play an important role. With regulation, safety can be implemented to decrease the risk. Therefore, IMO has amended the SOLAS's...

This study aims to develop an accurate and reliable model of greenhouse climate conditions. This research focuses on analyzing the complex interactions between temperature, humidity, light intensity, and airflow patterns in a greenhouse environment. Historical data analysis is used to create the model....

The simulation of hastelloy-c276 tube stagger spinning process was carried out by the finite element software of simufact to reveal the reason of defects of the tube. The magnitudeand variation rule of uplift and diameter extension defects were analyzed under different technical parameters. Experiments...

A microbial fuel cell (MFC)-based biosensor can be used to detect the water toxicity. In this study, the solitary and joint biotoxicities of heavy metal ions (Cu2+, Ni2+, Cd2+) and acephate were investigated using single-chamber MFC. The results showed that all the contaminants could individually inhibit...

This paper aims at designing a set of FPGA based phonetic intelligent home system, wherein this system completely adopts wireless communication technology to avoid rewiring problem and can control home appliances through voice recognition and infrared sensor, thus to phonetically turn on or turn off...

DMA is often used to transfer data between different kinds of memory-mapped slave endpoints. It is a common peripheral component for DSP. In order to make full use of the time during the reading and writing, this paper proposed an intelligent DMA. Compared with the traditional DMA, a newly designed operational...

Examination achievement management system is an important part of college educational administration system and plays an important role to improve the level of educational management. In view of the problem of the difficulty of software development, this article launches the research on the framework...

Concrete bridge structures are usually exposed to the natural environment. Because of sunshine, wind, precipitation, etc natural environment influence, the concrete structure is changing temperature. With the poor thermal conductive performance of concrete, the upper structure temperature gradient appears...

At first, this paper analyzes the family use combustible gases present situation and the existence risk, then atc89c52 single chip microcomputer based on, using sensor mq-2 gas concentration detection, to collected the gas concentration data as the basis for the control of sound, alarm device, to achieve...

We first get the conditions under which the elliptic system- ui = upi+1, us+1 = u1(i=1,2,…,s) has no positive radially symmetric solutions. Then by using this nonexistence result, we establish blow-up estimates for semilinear reaction-diffusion system uit = ui+upi+1 , us+1 =u1(i=1,2,…,s) with null Dirichlet...

With the rapid development of HVDC technology and the commissioning of the HVDC project in recent years, the HVDC control strategy has also been fully developed; As the particularity of the point-to-net HVDC, the control strategy of weak system at AC sending end HVDC has become a new challenge. On the...

Different with certificate approval on paper, online certificate approval is difficult to record approve information, operate complicated, find out the error location in the certificate and so on, so the applications don't work out well. This paper introduces the certificate approval way with floating...

A self-designed cathodic protection (CP) setup with an externally applied current was developed, using a copper wire ring buried in the soil layer, aligned with the anchor rod axis, as the anode, and the anchor rod as the cathode, connected to a DC power supply to form a current loop, to achieve rust...

When a disaster occurs, it is very difficult for people inside a large building to evacuate safely. We propose a framework of Intelligent Evacuation Guidance System for Large Building (IEGSLB). IEGSLB proposes a new method for the set of evacuation indicators, and fire detection and video surveillance...

To investigate the nitrate leaching risk of three red soils in subtropical China, this study conducted seven different manure treatments, namely, 0 (CK), 50 (F50), 100 (F100), 200 (F200), 400 (F400), 800 (F800), 1600 kg N hm-2 (F1600) with half of local conventional chemical fertilizers (N: 50 kg hm-2,...

As a unique visual form, optical illusion can play a stunning effect in a wide range of applications, such as home design, architectural design and graphic design. The previous theoretical researches on the optical illusion are productive, and the master of art and design even makes best use of visual...

Wind power prediction is important for the power system with plenty of wind power. This paper studies the method combined with empirical mode decomposition and extreme learning machine for short-term wind power prediction. The empirical mode decomposition method is utilized to decompose the signal of...

The advancement of electricity market reform and the outline of "Social Credit System Construction Plan" of the State Council all require the power industry to pay close attention to the construction of the electricity market credit system. In addition to the credit rating and credit regulation of power...

Stochastic medium model belongs to in-continuous medium theory. Open-pit slope and the slope are important excavation project that human utilize nature. In this paper, stochastic medium model was used in the foundation pit engineering ground surface movements. The adjacent ground surface movement and...

It is an important way to research the IC engine combustion process by calculating the heat release rate from the cylinder pressure. Basing on the NI PXI-8196 embedded platform system, the PXI-6229 multi-function data acquisition card is put into use to realize cylinder pressure curve point sampling,...

Sprouts being explants, the factors affecting in vitro culture and plant regeneration of L. edulis were optimized by orthogonal design and tissue cultured seedlings were obtained on culture media with different concentrations of hormones. The results showed that the optimum compositions for primary culture,...

In order to achieve the gradient metal high chromium cast iron which can fill the 3D network structure SiC porous ceramics, it was necessary to design cast iron materials with different performance by adjusting the experimental parameters. The cast iron material was fabricated by the molten casting method....

Air traffic control is also named flight control and it is the general term of supervision control and mandatory management implemented by relevant departments according to flight rules issued by the country for aircrafts flying in the sky. The main purpose is to maintain flight order and prevent collision...

This paper discusses the design of computer vision and odometer integrated autonomous navigation algorithm based on RatSLAM system for land vehicles. The research aims at testing the effectiveness of a vision/odometer bio-inspired navigation approach for land vehicle applications. Images and odometer...

For it is hard to develop experiments for the gun breechblock system, a shock test bed is designed for it. During designing, the breechblock operating force is one of the key test parameters of the shock test bed for gun breechblock system. In order to choose a reasonable value to open breechblock, influence...

Currently, the greenhouse effect is becoming increasingly serious, and biological carbon-fixation, especially microbial biological carbon-fixation, can play a unique role in curbing the greenhouse effect．CO2 and N2 are the major greenhouse gases. In this study, a facultative CO2 and N2 fixing bacterium...

Dairy goat farming is one of the promising areas of animal farming. Modern milk production necessitates not only certain technical solutions in production arrangement, but primarity high yield animals adapted to industrial production. Saanen is one of the most fitting breeds for milk production. This...

It is indispensable to scientifically predict the consumption of air material spare parts and to make scientific decisions on aviation equipment maintenance resources and make full use of existing resources to improve maintenance capability. In the process of aviation equipment maintenance and support,...

A kind of disturbance observer method was adopted in backstepping controller design of pitch channel missile control system. Not only the outer disturbance but also the inner uncertainties of missile model can be estimated by two disturbance observer. Also the stability of the whole system was proved...

The application of machine vision in autonomous vehicles has become a focal point of innovation, integrating advanced sensors and sophisticated image processing algorithms to redefine driving safety and comfort. High-definition cameras, 3D LiDAR, high-precision radars, and ultrasonic detectors are at...

Ship weather routing is used to obtain a shortest time path or most economical path considering weather condition. Many approaches have been studied to solve ship-routing problem, and Dijkstra algorithm is quite practical among them. A modified Dijkstra algorithm using structure matrix and single linked...

In the new era, the channel that people obtain scientific information has undergone major changes. The traditional working mode of editors of sci-tech journals can not meet the developing needs of the new situation. To improve the efficiency of sci-tech journals editing and publishing, shorten the publishing...

The vibration analysis model of slab mill is established in this paper according with the multi-body dynamics theory. The relationship between the vibration displacement and time of the support roller in different conditions is obtained through simulation analysis. Under different damping conditions,...

Nickel oxide/nitrogen-doped carbon nanotubes catalysts for the (ORR) were fabricated using a simple chemical plating method. Scanning electron microscopy (SEM) and Energy dispersive spectrometer (EDS) was used to characterize its structure. Electrochemical method studies show that the nickel oxide/nitrogen-doped...

Considering the shortage of water resources in Henan Province ,we draw up an intervention program to mitigate water scarcity. The model described in this article is established for researches of transporting water from the Danjiangkou reservoir to Henan Province. The water movement reduces the uneven...

This report builds a s-type curve model which defines the change of per capita water consumption following the change of GDP, and it defines the rate of per capita satisfaction of using water which is considered as the index to judge the ability of the region to provide clean water to meet the needs...

The article presents algorithms for the control of a robotic complex for building products using 3D printing, including a module for the main movements and a module for precise movements based on a robot with a cable drive. The description of software modules for the implementation of algorithms and...

To investigate the pollution situation of Pb in Zhengzhou city and obtain high bioaccumu- lation green plants, the Pb contents of plants leaves from the green belts on major traffic roads in Zhenzhou city, were analyzed by using graphite furnace atomic absorption spectrometry . The results showed that...

This paper analyzed the basic principles of the alternating current withstand voltage test technology work of the same frequency and phase.And at the same time analyzed the danger that exist during the process of the test that basic on the GIS equipment,put forward corresponding preventive and control...

Construction and lifting technology of column subsection is the key to build the lower hull of tension leg platform (TLP). Reasonable block dividing and build process could reduce the fabrication of dock workload, control welding distortion and dimensional accuracy and shorten the construction period....

In order to test the predicting ability of numerical calculating and provide the reliable data for the successive design, this study was designed to trace the particle path in the complete fluidized flow field in the slag cooler according to the characteristic of the gas-solid flow by the Euler-Lagrange...

The organics in the water after advanced treated and to be disinfected are classified basing on different characteristics. Compared with chlorination, the control of DBPs formation from different organics by chloramination is studied. The test results show that, the chloramine can reduces the TTHM and...

In this paper, a mathematical model is established to apply for orientation distribution of short fibers suspensions in shear-equibiaxial extensional flow. Furthermore, the result of differential equation on plant fibers orientation can be acquired in complex flow.

With the development of the Internet and WEB technology over past years, a scoring statistical prediction model can be proposed given the item similarity and the recommended precision, so as to define users and item information. Based on this, a linear regression forecasting model is built and a corresponding...

This study added fly ash in cement mortar to replace some cement,using three grades (GradeI II III )and three contents (10% 20% 30%)of fly ash respectively to make nine kinds of cement mortar specimen. Standard curing periods were respectively 3,7,14,28 days of each kind of specimen. The compressive...

Aircraft type recognition is a problem and key factor of safe docking of aircraft in airport auto-docking guide system. Based on adaptive weighted morphology tree classifier algorithm, it is approved for aircraft type recognition to solve the key issues to docking guide, useing image analysis and recognition...

The night vision vehicle head-up display is a new type of vehicle night-assisted driving man-machine interaction device. It has obvious advantages in use. But because the device is the main source of visual information for the driver at night. If the design is not appropriate is likely to cause danger....

MSMEs (Micro, Small, and Medium Enterprises) have a strategic role in improving the community’s economy. As a center for wood carving, most MSMEs in Jepara have not yet utilized information technology optimally. They tend to use conventional marketing methods. As a result, they have to face a severe...

Reinforced concrete hollow columns are often used as structures with high stability requirements such as piers and large frame columns due to their light weight and relatively large cross-section. When the structure is subjected to lateral impact, it is more likely to be damaged. To investigate the influence...

A glider is a kind of fixed-wing aircraft that does not use any power. After takeoff, it relies on the reaction force of the air acting on its lifting surfaces for free flight. So, an experiment is designed to research some information and the relationship between gliders. The method of controlling variables...

Baosteel cold rolled sheet production equipment technology has very important position in Baosteel steel pro-duction, and the DSR roll is the key components in the cold rolled sheet production equipment. This paper conducted the research on key technology of DSR roll, in view of the DSR roll exposed...

Toluene, methyl ethyl phthalate amines, methyl ethyl ketone and ethyl acetate are used in China more vinegar several solvents, in the course will emit large amounts of volatile organic gases, serious harm to human health and the environment, it must be recycled or disposed of these gases. In this paper,...

According to the problem that the current residential space tension, more and more folding furniture are produced. In this paper, the dynamic equation of the folding table is obtained by using geometric knowledge and nonlinear constrained optimization model, and it illustrates the curve fitting model...

For the production formulas of the gas reservoirs with bottom water, the models established in the past consider that only a small part of the gas layer is perforated and the entire region under the perforated zone is considered as the hemispheric flow, ignoring effects of the opening degree and formation...

This paper analyses the background of the proposal of sustainable development in detail. The essence of sustainable development is revealed. The energy analysis method for sustainable development is presented. Some practical advices on the implementation of sustainable development are given. The work...

The Microwave plasma chemical vapor deposition (MPCVD) method was used to make diamond film in this paper. The influence of working gas supply mode and velocity were investigated using numerical simulation method. The distribution of gas flow rate at two different gas supply modes was analyzed by software...

In the making and erection process of wall-column structural system of electrostatic precipitator casing, the imperfection will be produced inevitably and influence the stability of the column. It's necessary for numerical simulation model that the imperfection is taken into account when the numerical...

In this paper, we focus on the efficient algorithm for solving the multi-commodity flow problems involved in TE and develop an improved approximation algorithm (i-FPTAS) based on the Fully Polynomial Time Approximation Scheme (FPTAS), with aim of greatly improving computational efficiency without compromising...

With the development of autonomous driving technology towards L3-L5 level, high-precision environment sensing becomes a core challenge for system safety and reliability. This paper systematically reviews the latest advances in autonomous driving sensor technologies, covering performance optimization...

In the past few years, the field of artificial intelligence (AI) has experienced explosive growth. Large language models (LLM) such as some AI developed for chat and information generation have drawn massive attention from the public, and more robots for commercial uses are implemented with them. However,...

Building sunshade components can effectively control solar radiation getting into the room and play an important role in the building thermal insulation. The study takes the west facade of the graduate dormitory at Guzhenkou Campus of China University of Petroleum as the research object. The angle, length,...

Wetland is a valuable natural resource, with irreplaceable ecological functions. With the development of industrialization, urbanization and population growth, wetland area is decreasing. And ecological functions gradually weakened. Based on TM remote sensing image from 2000 to 2011, this paper built...

Intrinsically Disordered Proteins (IDPs) are a class of proteins that have no sure tertiary or secondary structure in the natural state. They are widely found in nature and involved in cell signal transduction, regulation, and protein interactions with a wide range of human diseases related. The research...

Pupil location is one of the key steps for iris location as pupil boundary corresponds to iris inner boundary. But uneven illumination affects the segmentation result heavily. The pupil region is the darkest part in most of the images, but it’s not the only part. The proposed algorithm is based on the...

A analytic hierarchy process optimized by topsis was presented aiming at the disadvantages that there are inconsistency and too much subjectivity in the existing multiple attribute decision making(MADM) methods when dealing with the weight calculation and index ranking problems. This method utilizes...

In this paper, we study the self-tuning method of the controller parameters of the servo system based on variable step size iteration method. We first introduce the basic knowledge of two degrees of freedom, the design of the initial value of the initial value of two degrees of freedom, and the selection...

A cooperative node selection scheme based on credibility for the problem of cooperative node selection is proposed in wireless sensor networks. A credibility model is given considering the cluster head nodes of subjective reliability and obtained from other nodes impersonality and reliability, the model...

, -fluoromethylene-ATP is advantageously obtained via pho-sphorylation of corresponding ADP analogue using catalytic NTP(N=A or U),PEP,nucleoside diphosphate kinase(NDPK), and pyruvate kinase(PK). In order to find the optimized reaction conditions of synthesis of , -CHF -ATP via the catalysis of ATP...

Based on the modified plate-truss model, the time-varying ultimate capacity of RC subjected to bending, shear and torsion were studied. An average constitutional relationship of steel bar is developed by considering both the bonding-slipping effect and corrosion ratio of reinforcing steel bar. The calculation...

An improved voltage-integration CMOS image sensor is presented. Some circuits is shared between the voltage integration block and the analog-to-digital convertor (ADC) through an optimal operation timing, which makes use of the different input-signals selected by the switches. Dynamic range expansion...

Synergic collaboration and load balancing are important techniques for complex aircrafts system simulation. The synergic models included aerodynamic, atmospheric and engine control models are studied and categorized into two groups in this paper. Moreover, optimizing the dispatch strategy is an essential...

In this paper, we study the homomorphic techniques used in GSW fully homomorphic encryption scheme, and point out the drawback which prevents the GSW scheme from efficiency. In order to conquer the weakness of low efficiency, we propose an improved homomorphic technique. Through comparative analysis,...

In the process of the dry grinding machine replacing the traditional water grinding machine, the whole solution of the dust collection and recovery system of the ceramic dry edge grinding machine is put forward through the experimental research on the dust property, the wind cooling technology, the dust...

The percentage rebound value r is a key parameter for evaluating the resilience of flexible cellular polymeric materials. Usually, researchers use photoelectric detection method to construct the ball rebound tester. But the accuracy of ball rebound tester is hard to measure and keep. This paper analyzed...

The 367 coal mining face in FengCheng ShangZhuang coal mine was selected for the project background, the law of the mining permeability is mirrored by the law of the flow of parallel hole that drain gas from virgin coal seam following by the moving of working face. According to the surveying data, the...

An alumni survey or better known as a tracer study conducts to tracks the alumni activities. For universities, the benefits of tracer studies include getting information, input, and motivation to advance their achievement further, so they can escalate prospective graduates to adapt to society’s needs...

This study uses a loose tenon-mortise joint to assess the mechanical performance and classify the strength of chairs produced from Cassia (Senna siamea) and Neem (Azadirachta indica). These less common wood species were utilized to construct 40 chairs, which were then assembled using polyvinyl acetate...

Studies have been conducted to investigate the usage of cocoa pod extract inhibitors derived from biomass waste to reduce the pace of steel corrosion. For 24, 72, 120, and 168 h at first, the steel was pre-soaked in the inhibitor. After that, the immersion in corrosive HCl medium was carried out with...

Cement grouting is a common method to improve the dam foundation, however, the cement take needed for improvement is difficult to evaluate because of the complexity of the rock foundation and the uncertainty of the influence factors. Although grouting design depends largely on the permeability of the...

Computational fluid dynamics (CFD) technology was used to conduct an analog simulation of air distribution on the first underground floor of one metro station. The temperature field distributions of the station hall and platform were obtained under two schemes, namely, fixed air volume and variable air...

With the increasing proportion of the elderly, fall will be a serious threat to the health of the elderly, especially elderly people who lives alone. Therefore, how to automatically detect abnormal behavior has become a key problem.Because of image recognition ,which is captured from the general monitoring,...

Excellent Schottky characteristics of indium-tin-oxide (ITO) contact formed on n-type GaN (n-GaN) were demonstrated. The post-thermal annealing of ITO contact sputtered on n-GaN led to a significant improvement in the Schottky characteristics, particularly pronounced in the air ambient than nitrogen...

It is analyzed by the technology plastics materials and molding process of bearing cylinder pieces, which has carried on the mold scheme demonstration and demoulding mechanism, the forming problem of bearing cylinder pieces is solved, and it is designed that the main runner, cold slug well, pull rod,...