Advances in Engineering Research

The monitoring terminal is an important part, which is interactive with users in TT&C equipment remote monitoring system, but it has some problems such as more work patterns, data process, and data display, etc. The work patterns and state parameter is designed by XML file, and data in XML file is used...

CPIGEN high power amplifier in the high pressure after the emergence of high pressure, causing high pressure start fault alarm. In order to improve the level of emergency response of the transmitter, this paper first combs the sensor type and signal form of the high-voltage starter, and then analyzes...

DC motors are actuators that have very popular functionality in the industry. DC motors can easily design and implement actuators using robust tracking control methods. This study aims to achieve a stable output signal according to the desired reference and remain robust against interference by using...

The recent development of autonomous driving has been obvious to all showcasing its potential to revolutionize the transportation industry. Central to this transformation is artificial intelligence (AI), which serves as the driving force behind the development of safe, efficient, and reliable autonomous...

Chestnut shell pigment was employed to modify a polyacrylamide superabsorbent. The synthesis was conducted through free-radical polymerization in aqueous solutions by using N, N'-methylene bisacrylamide and ammonium persulfate as a crosslinker and an initiator, respectively. This work focused on the...

This paper presents the preparation for phase change materials(PCM) with different phase change temperature for use in refrigerated transport equipment. The optimal preparation condition of HSD-1 as the PCM was confirmed. The thermo-physical properties of the modified HSD-1 were investigated by cooling...

First principles calculations were performed to explain the deformation feature and band gap variation behavior of PbTe under isotropic and uniaxial strain along [100], [110] and [111] directions. Calculations showed that the band gap variation regularity is quite different between the first and the...

A method is presented in this paper that can easily identify the critical part of the power system. So the critical part can be protected to avoiding damages from nature disasters as well as human factors. This model avoids computing complicated parameters such as the electrical betweenness etc. and...

Map information and sensor information is considered to be an effective way to assist indoor wireless location. Wireless location combined with map information and Sensor information can solve many problem such as positioning point cross the wall, falling into the wrong room. In this paper, a new indoor...

In the last few decades, rectangle earth pressure balance shield machine have been introduced as primary tunneling tools in soft soil excavation around the world. This paper presents research on the performance of the rectangle shield machine. Analytical studies have been carried out to establish the...

The article provides a systematic review of 8 species of the genus Dianthus L. of North Caucasus, focusing on their morphology and ecology. Most of the studied species have a regional ecology and are found in arid basins. But still their potential ecological capabilities are very broad, as evidenced...

As a sharp increase of global data, energy consumption of data storage is becoming more and more prominent. According to the data access frequency, about 80% of data is not be accessed. For these data, the paper proposes a low-consumption, long-life and high-security method which uses high-density, large-capacity...

In this paper, for the safety risks such as complex working environment of the distribution live work on 10 kV, the safety risk of the distribution live work on 10 kV of multi-circuits on the same tower in a certain town of Benxi is evaluated by using analytic hierarchy process and fuzzy comprehensive...

Currently, the methods of energy-based seismic design have been widely developed. As cumulative response, hysteretic energy can be regarded as an index directly to estimate the earthquake induced structural damage, so it is important for researchers to analyze hysteretic energy demand of SDOF systems....

Step-feed nitrogen removal process, as a new sewage treatment technology, was concerned by scholars domestically and abroad in recent years. Three-phase biological fluidized bed with four step-feed process combined step-feed nitrogen removal with biological fluidized bed. In fact,there were many advantages,...

Cutting-direction fracture is one of the most common and undesirable phenomenon occurring in machining operations that reduces assembly and machined part quality, and it should be avoided or at least reduced.. A finite element model has been established to investigate the mechanism of cutting direction...

According to analysis of cores, rock sections, casting sections, logging data of Ordovician carbonate reservoirs in the Yubei area,reservoir rock in the study area include 4 types:mud micrite limestone,grain limestone,biological limestone and dolomitic limestone.In combination with core photos and imaging...

Since large engineering equipment cannot meet customers' personalized demands or respond fast to market changes, the method to conduct innovative design of engineering equipment based on modular strategy is proposed here. With the innovative design of excavator for example and by combining the product...

A novel electricity- Compressed Natural Gas (CNG) multi-compression process using natural gas pressure energy is proposed. Compared to electricity-CNG single-compression process using natural gas pressure energy with the same CNG product, the multi-compression process produces 92 more kW power. In this...

Poly-olefin as drag reduce agent (DRA) with more than 6 million molecular weight would lost most of drag reducing capacity after shearing degradation. Composites combining many unique physical and chemical properties could offer possible way to develop DRA with better performance. The potential of Poly-olefin/SiO2...

Quantum Dots are powerful imaging and tracking tools for a wide range of biomedical applications, especially in preparing molecular beacons, but its use is limited by the sensitivity of the electrostatic binding between streptavidin and QDs. In this investigation, we used EDC as a crosslinker and NHS...

Phytoremediation of Pb-contaminated soil was studied with -cyclodextrin as enhancing agent using Brassica Juncea. Effects of the addition dosage and the addition time of -cyclodextrin, and Pb concentration in soil on the plant growth were investigated. Plants were cultivated in an environmental control...

In this paper, we conduct research on the design and simulation of the novel wireless sensor network spectrum allocation algorithm. Cognitive radio technology is able to perceive the general surrounding environment spectrum, spectrum hole detection, the use of artificial intelligence from the environment,...

The paper analyses the construction model of enterprise information systems (EIS), and puts forward a layering and service-oriented integrated framework. The paper expounds that the major function and realization model from four aspects of data, component, service, and portal integration, which provides...

The traditional shape of the base cavity of the projectile is a column. This paper focus on the influence of the little rake angle truncated-cone base cavity on the flow field of the projectile. With numerical method, the distributions of the flow field parameters and the drag coefficient of projectile...

For passive localization of wideband signal sources, a points imaging passive localization algorithm is proposed with the information of time difference of arrival(TDOA) and frequency difference of arrival(FDOA). This method uses the principle of Synthetic Aperature Radar(SAR) imaging and the idea of...

In this work, a series of mesoporous carbonaceous materials (MCs), which are simultaneously doped with N and Fe-containing species, were prepared by polymerization of potassium hexacyanoferrate-mediated chitosan on SiO2 nanospheres. The SiO2 template was carbonized and etched with NaOH. The electrochemical...

The development of tall buildings was made possible by developments in structural systems, materials, construction technology, and analytical techniques for design and analysis. Lateral loads from wind and earthquakes have an impact on the structural construction of high-rise buildings structure’s lateral...

In this paper, a 12 bit 500MS/s IF Sampling ADC is described. The ADC has an integrated input buffer with a new linearization technique that improves its distortion. Eight pipeline stages with fully differential switched capacitor architecture follow the input buffer. Each of stage of the pipeline, excluding...

In this paper, we build the Time-Dependent Alternatives Evaluation Model to determine the best alternative or combination of alternatives to remove the space debris. The model is consist of three small models, such as Costs, Risks and Benefits models which are time-dependent models. After consulting...

Criteria of next generation aircraft, “quieter, cleaner and greener”, were dedicated by designers and stakeholders in the past decade years. New materials, different design philosophies and new manufacture technologies are used on civil aircraft in China. Gaps between China and abroad, in the fields...

Strange nonchaotic attractors exist in quasiperiodically forced system universally, which have fractal structure in geometry but no sensitivity to initial value, which also are among the international hotspot issues studied by nonlinear kinetics for the recent ten years. Many scholars have done a lot...

With the development of science and industry the rapid increase in time-delay systems has prompted more and more researchers to use intermittent control theory to analyze and synthesize the stability of the time-delay systems subject to actuator saturation and random perturbation. This note investigates...

The deformation behavior of aluminum alloy 5052 is studied by isothermal hot compression in a wide range of temperatures ranging from 300 °C to 450 °C and strain rates ranging from 0.01 s-1 to 1 s-1. The results show that the peak stress increases with the strain rate while decreases with the temperature....

According to the dynamic performance evaluation indexes of the vehicle, combining the performance requirements of the electric vehicle which paper studied, choosing the motor parameters, transmission ratio and the battery parameters respectively.The vehicle model is established in the ADVISOR software,...

Western China is confronting two urgent problems, rural poverty and environmental deterioration. The development of renewable energy boasts great potential to solve these two problems. In addition, developing renewable energy in rural areas of western China may result in several benefits, including meeting...

In the research of route planning, better balance between planning time and route quality should be achieved to reduce UAVs cost. This article is based on basic RRT (Rapidly-exploring Random Trees) and proposes an improved RRT_Connect algorithm which improves the way generating new node of the tree,...

In the case where the static threat a priori position information has been obtained, the threat avoidance of the unmanned combat aircraft can be realized by the pre-route planning method. In this paper, we study the planning method of evading route under the condition of known static threat. According...

The operation of cascade hydropower stations in dry season is an important problem. In dry season, there are two primary objectives: maximize cascade minimum output and maximize total power generation. Minimum output reflects the stability, security and reliability of hydropower. Power generation reflects...

This paper reviews the recent development of phase change cold storage technology for food cold chain application. According to the application field of cold chain, developments of phase change cold storage technology in cold storage and low temperature transport are introduced separately, such as hold-over...

Based on the actual operation of the simulation data and adopted PLC program control, it can become an independent system, by sampling, purging, gas sample, sample pretreatment, gas analysis, instrument calibration, program control and the signal output and other parts, and will be assisted with CO probe...

The integration of a large amount of renewable energy into the distribution network brings the severe consumptive problem. Compared to the traditional storage methods, in this paper, we propose a new solution which is to convert electricity into hydrogen by the electrolysis cell. What's more, by methanation...

On the basis of the study of the synthetic technology of sulfonated acetone formaldehyde polycondensate, the paper analyzes the polycondensate’s synthetic mechanism and advances the three-stage formaldehyde additive technology.

On the basis of studying water-sediment movement in the Lingdingyang sea area, sedimentation characteristics of the trial dredged-trough of immersed tube tunnel of HZMB are analyzed, with 17 groups of underwater topographic survey data and the measured results of fluid mud and silt unit weight in the...

A practical and fast fault ergodicity algorithm for the reliability evaluation of distribution system is proposed on the basis of a large number of analysis of the distribution network structure. The algorithm uses breadth first search and depth first search and the minimum path set for the load point...

This work represents the study of the effect of aspect ratio on coupled ring oscillators. The two different coupled ring oscillators i.e.., 3 × 2, 3 × 3 are designed in 90nm CMOS process. The frequency, phase noise and power consumption are measured for different aspect ratios also a comparative study...

The process of exploration and production in coal mines have many potential dangers so the coal mine safety problem has become the focus of social concern.Mine gas early warning system is an important measure that guarantee coal mine safety production because coal mine gas explosion is an important cause...

This paper is based on the traditional wind-storage combined power generation system. A two-dimensional cloud model is used to control the variable weight filter to analyze the relationship between filter time constant, energy storage capacity and power fluctuation. In order to take the battery charge...

With the development of industry and the progress of society, a kind of vehicle that can travel on the ground like a car and fly in the air like an airplane has become a research focus both at home and abroad. The method of bionic design and aerodynamic design method based on the combination of aesthetic...

In the distribution network, pole-type transformer is not only the most common device related to power supply safety and environmental beautification, but also in a large amount of number and needs a large number of maintenance. It is difficult to achieve the standardization. In view of the existing...

Cumulative energy response spectra can generally be used to estimate earthquake energy demand of structures. Some research findings show that the earthquake input energy demand is stable than other forms of energy demand, so it is important for scholars to research earthquake input energy demand and...

According to the connotation of urbanization, this paper constructs comprehensive evaluation index system of regional urbanization level from four aspects that population urbanization, economic urbanization, spatial urbanization and social urbanization, and uses the method of entropy to make comprehensive...

Pulse thermography has been proved an effective method for the quality testing of coating materials. Surface temperature variations not only reveal the shape and position of the defect, but also reflect the property of the second layer. In this paper, the relationship between surface temperature and...

The concept of Nano-sized semiconductor material and some of its basic properties such as small size effect, surface and interface effect, etc. are presented as well as how these basic properties explain its physics properties. This article also presents the preparative techniques and the applications...

WC/steel matrix composites with WC particles of 150 mesh as reinforced body and 5CrNiMo steel as matrix, were prepared by electroslag melting and casting technology. The content of WC was 45%. The influence of quenching temperature on the transformation regularity of reinforced body for WC/steel matrix...

In the experimental study of electric vehicle (EV) charging equipment performance testing, we found that when the EV charging equipment charged the power battery in a constant current mode, some charging devices output current contained a lot of current ripples. Thus, the index of voltage ripple coefficient...

Weaponry model architecture oriented to composition and reuse can improve modeling efficiency and ensure consistency of models, for developers can build weapon models by model composition and reuse. However, there are massive models in the field of military equipment, and the combination and inheritance...

Quantitative research on the soil erosion intensity in the mountain areas of Beijing was estimated via utilizing RUSLE model supported by GIS and RS technology. It is concluded that no erosion and slight erosion were the primary erosion intensities in the mountain areas of Beijing. The soil erosion was...

The effects of homogenization treatment on the electrical conductivity, tensile strength and microstructure of Al-B electrician round rod were investigated by means of tensile test, optical microscopy(OM), scanning electron microscopy (SEM), energy dispersive spectroscopy(EDS). The results indicate that...

The flexibility and convenience offered by mobile communication have made it one of the fastest growing areas of telecommunications, and communication security has become particularly significant and prominent. One of the most challenging security threats is the attack of rogue base station which posing...

The transverse free vibration of Timoshenko beams resting on viscoelastic foundation are studied. Complex frequency equations are obtained for pinned-pinned ends. The effects of beam and foundation parameters on natural frequencies are analyzed in numerical examples, and the characteristics of Timoshenko...

The intrusion detection algorithm calculates the deviation distance using Chi-square test statistic. The amount of calculation can be greatly reduced. Sample data coming from operating system LINUX and Windows8 was presented and compared. The results of this study show that the algorithm achieves the...

This paper presents a new type of clock system based on standard CMOS 0.18 m, 1.8V process. It can be used for 14bit, 500 MHz sampling frequency, time interleaving (TI) ADC. The clock edge reassignment technique has been introduced in this paper. Simulation has been run in Spectre under Cadence platform....

Based on results of biomass combustion and pyrolysis using TG-DSC analyzer, biomass thermodynamics characteristics were studied. Integrated heat model and differential heat model were used to determined biomass thermal behavior, and the former fitted the actual better; the heat capacities with temperature...

In the paper, we research how to locate the crash area of the lost plane. We take ocean currents, wind-driven currents etc. into consideration. Defining the best searching radius , we can obtain the best searching area. Wreckages are moving, we renew the searching area using . And we color these circle...

The reasonable and accurate assessment of the development level of the power grid is very important for a country's power grid construction and power distribution. The domestic and foreign power grid assessment index system, grid comprehensive evaluation methods are summarized in this paper, expounds...

In order to shorten the detection time of DSD series high frequency electric brush plating power supply, we designed a tester for the power supply, which can facilitate data analysis and maintenance of power supply for the staff. Working principle, the hardware structure and software flow are depicted...

The signal integrity problem has become a limit on current electronic system design and development. This paper studies the transmission performance for high-speed PCB complex interconnect structural model consists of via, solder ball and trace. Different length of traces and different radius of pads...

With the deepening of research, increasingly signal distortion and logic errors are no longer caused by the interconnection of line,in the multilayer interconnected system, the coupling and delay between the signals have a great influence on the performance of the system, Therefore, the VLSI circuit...

Anion-exchange membrane composed of chitosan (CS) and poly[(3-methyl-1-vinylimidazolium methyl sulfate)-co-(1-vinylcaprolactam)-co-(1- vinylpyrrolidone)] (PMVMS-co-VC-co-VP) was prepared by applying double cross-linking technique for alkaline membrane fuel cell (AMFC). Having tested the ion conductivity...

The electrostatic gyro monitor(ESGM) has complicated structure and needs a long time to start up ,it requires sailing at a uniform course and casting fin to reduce ship shake ,avoiding sailing at low latitude(6øN~6øS),which is difficult to achieve cause of the limitation of mission area and weather condition,in...

FIFO has been widely used in various data transmission systems due to its ability to temporarily store and manage data efficiently. In modern digital systems, ensuring efficient and reliable data transfer between components operating at different clock domains is a critical challenge. Asynchronous FIFO...

This paper mainly studies the optimization design method of annular slot in the cylindrical resonant cavity. Firstly, we illustrate the microwave resonant cavity perturbation method and radiation power's influence on the cavity; then using HFSS to simulate the radiation power calculation, in order to...

Waste rock and tailings of a mine generate acid mine drainage due to oxidization during long-term stacking, and this may cause serious harm to the environment. 1-year-old, 5-year-old, 10-year-old and 20-year-old waste rock of Dexing Copper Mine are chosen in the experiment for acid generation research....

The Carbon fiber composite material has been widely used for its high specific strength, stiffness and many other excellent properties. But for the unidirectional carbon fiber composite, the transverse performance is much poorer than the longitudinal performance. Under the transverse load, interface...

This is a study on environment inside subway cabin under the effects of piston winds. Subway trains move fast in underground tunnels and induce strong piston winds which will change the atmospheric environment around every cabin. Through a more realistic Computational Fluid Dynamics approach with a full-scale...

Based on the convex geometry, a lot of endmember extraction algorithms have been proposed, in which N-FINDR algorithm use sample points in data cloud to construct simplex and maximize its volumn, it suitable for the images which contain “pure pixels”, we can randomly select pixels as the endmembers to...

To confirm the role and mechanism of gefitinib used as a new stent coating material on inhibition of smooth muscle cell proliferation, MTT assay was used to measure the cell proliferation and Western Blot was used to determine the expression of Caspase-3 and Bcl-2. Experiments showed that, compared with...

As the Tropical Rainfall Measuring Mission (TRMM) satellite completes more than a decade of operation, it has provided researchers throughout the world with a large volume of rainfall data. The Yangtze River is the longest river in China, it plays an important role in the regional water cycle, energy...

Network protocol conformance testing is a functional black box testing. It tests whether that if the implementation of a protocol consistent with consists with the protocol standards according to the protocol text description. A method of network protocol conformance testing with Petri net is presented....

The design is a function with a variety of rehabilitation training machine, for there are injuries and recovering patients. The multi-functional integrated set by upper training, lower body and unified protection protective function of limbs force patients were fully trained to play a role in rehabilitation.

In this paper, we study Moving Checkers Game, an interesting shifting checkers game consisting of n black checkers and 1 white checkers. We have proved that the minimum number of steps needed to play the game for general n is 2n+1. We have also presented an optimal algorithm to generate all of the optimal...

With the rapid development of science and technology, three-dimensional modeling technology bridges will continue to progress, which is widely used in bridge engineering, bridge design can contribute to enhance the quality, thus contributing to the sustainable development of the bridge project. Three-dimensional...

The influence of different flapping wing models on the aerodynamic performance of a hovering insect is numerically investigated. Some simplified models are compared with the aerodynamic performance of the hovering fruit fly wing. With the increase in the complexity, two different models are considered...

In the first part of the paper, the models of electrolysis cell and AND were presented. Based on the models, the optimal model with the consideration of the network operation constraints in the distribution level is presented in this paper. Case studies were carried out to prove the advantages of the...

With the construction of the super-large foundation pit for Wuhan metro as the engineering background, this study predicted the deformation of supporting structure and the distribution of earth pressure in the active zone at different stages of step-by-step excavation and analyzed the “soil arching effect”...

The article discusses the developing of pastoralism in Kalmykia that is being studied in a limited number of works. Moreover, the researchers did not try to make comparative historical parallels with modernity. Even though nomadology has been developing over two centuries, in the modern period, discussions...

Against the backdrop of intensifying global climate change and energy crises, the energy transition in the transportation sector has become a global focus. Automotive power system technologies are evolving along diversified pathways, with traditional internal combustion engine vehicles, pure electric...

in recent years, the research and application of welding robot technology has made many outstanding achievements in seam tracking, off-line programming, path planning, intelligent control and so on. With the continuous development of computer technology, intelligent control technology and artificial...

Ferrocene, as a significant part of the organic synthesis, who can derivatives a large amount of compounds. This research expresses the progress from the preparation of 6-dichlorobenzene- 5-cyclopentadienyliron to the formation of 6-Bis(phenoxy)- 5-cyclopentadienyliron. Nesmeyanov’s theory, throughout...

With the increasing need for flame-retardant optical cable currently, requirements for flame-retardant levels of optical cable differ in various occasions. This paper introduces the differences between optical cables with different flame-retardant levels, focuses on describing the design of a fire-resistant...

A modulated float-assisting, Bulletproof, stab resistant cloth is designed; the preparation method and corresponding product are brought forward. The cloth is composed of the coat, the standardized modules and components. The cloth has a neck protection body, the coat and crotch portion protecting body....

Paralytic shellfish poisoning (PSP) toxins are potent neurotoxins mainly produced by marine dinoflagellates. However, the increasing number of findings of toxin-producing bacteria in dinoflagellate intracellular cells supports the hypothesis of the bacterial origin of PSP toxins. Although toxigenic bacteria...

An Extreme Learning Machine (ELM)-based novel channel estimation algorithm is proposed for orthogonal frequency division multiplexing (OFDM) communication system with multi-path propagation characteristics. In addition, a low-pass filter is utilized to filter the noise components which are separated...

This paper presents the results of a study on the fatigue damage of concrete under uniaxial compression. Based on the experiment results, the change law of fatigue modulus is put forward. Then the paper presents a fatigue damage model. By reference to the concept about the damage variable defined by...

Under the background of formulating environmental tax policy, the polluting enterprises will lobby the government legislative branch and try to lower the standard of environmental tax policy to maximize their own interests. In order to realize the real effect of environmental tax policy, effective measures...

Intelligent vehicle sensors are the core of autonomous driving, covering camera, millimetre-wave radar, LiDAR and ultrasonic radar, each with its own advantages and disadvantages: camera relies on algorithms and is susceptible to environmental interference; millimetre wave radar adapts to bad weather...

Establishment of safety risk warning system of highway construction project can prevent accident effectively. Four warning situations have been ascertained, such as low safety capacity of highway construction project, reduction of safety capacity of highway construction project, existence of major safety...

The molten Al (aluminum) droplets collision research was conducted to investigate the collision mechanism in high temperature field. By using the 3D printing technology, the solid Al was melted into liquid by high-frequency electromagnetic heater, and the collision process was recorded by high speed...

This paper presents a 14-bit 500MSPS ADC in 0.18 um CMOS process. By interleaving two 250MSPS ADCs, a sample rate of 500MSPS is achieved. The offset, gain error and time skew between the two channels are calibrated in the background. The measurement shows that the ADC has performances of 10.6 bits ENOB,...