Advances in Engineering Research

This paper is based on the panel method from three-dimensional potential flow theory, sources-sinks are distributed on surface panel to meet the boundary conditions. Additional mass can be obtained by solving the velocity potential. Ellipsoids under different scales are as example to study influence...

Load forecasting is a traditional research issue in the field of electric power system. In this paper, an improved fuzzy time series approach is used to forecast load. Firstly, a method of unequal-sized intervals partitioning based on K-means algorithm is proposed. Secondly, improved fuzzification method...

This design uses High Performance Capillary Electrophoresis (HPCE) to determine the Paeonol’s content in Cynanchum paniculatum. Electrophoresis separation controlled conditions for uncoated fused silica capillary column (75 m×52 /60cm) injection height 7.5cm, and using a concentration of 40mmol/L borax...

This design is a measurement and control system of greenhouse ecological parameters. It realizes the data acquisition of temperature , humidity and carbon dioxide on the site, implement the data transmission and display function by using the data acquisition system which consist of the converter, data...

Energy consumption has seen a sharp increase with the rapid sci-tech development in China, which leads to an urgent demand on efficient, scientific and reasonable energy management methods to predict and evaluate energy consumption and improve the energy utilization rate. Based on the theory of grey...

In the paper the main problems of power control strategies in series hybrid electric vehicles are discussed. Classical regulators are compared with neural networks, their advantages and disadvantages are shown. Experimental data sources for training neural networks and proofing results are suggested...

Sunflower seed has attracted the researchers’ attention because its’ high nutrition oil. Shell breaking mechanics characteristics test and analysis of sunflower seeds,as to provide a theoretical basis for the pressing equipment and research on sunflower seeds. Through single factor test and orthogonal...

The method of microprocessor circuit fault diagnosis is mainly discussed in this paper. In order to test circuit faults

According to the problem that lots of machining time of Electronic Discharge Machining (short for EDM) is wasted in replacing and inspecting tool-electrode, adjusting and inspecting equipment for EDM has been developed. Through extracting the feature points and planning the inspecting path, necessary...

As an important material used in the production of epoxy resins, epichlorohydrin is usually derived from the saponification and cyclization of dichloropropanol in a tower reacting system. In order to reduce energy consumption and wastewater discharge, a new process of tubular reactor coupled with wiped...

By inducing thermal explosion in high-gravity field to prepare the laminated composite of TiB2-based ceramic and Ti-6Al-4V alloy, spatial span-scale continuously-graded microstructure was achieved in interfacial region between the ceramic and Ti alloy, and the formation of the interfacial microstructure...

The high temperature rutting test, the Marshall test, the low temperature bending test, the water stability test and the scatter spatter test of SMA-13 asphalt mixture were carried out based on the raw material and the mix design. The lateral comparison of SMA-13 road performance was carried out for...

Express automatic sorting is one of the main problems in the domestic logistics and transportation section. At present only a few large domestic and foreign logistics companies possess automated logistics sorting lines. The sorting equipment is complex in structure, large in size, high in cost and energy...

As a new energy-saving conductor, ACCC conductor, which has the advantages of low weight, high conductivity, can double the ampacity of conventional conductors. However due to the differences between ACCC conductor and conventional conductors, present current-temperature model cannot be directly applied...

To address the issue of cracks appearing in the side walls and arches of a tunnel in Xinjiang after the formwork removal of the secondary lining, a comprehensive site investigation was conducted. The causes of the cracks were analyzed based on geological conditions, engineering design, construction,...

Nano measurement technology is an important means of nano-mechanical properties of thin materials research. Aerial film has more excellent physical and mechanical properties compared to common film. Nano indentation continuous stiffness testing method is applied in the paper, the nano-mechanical properties...

Compares two 1/4 car models, two 1/4 model (changes the spring stiffness) and 1/2 car models three vehicles at the same speed in the displacement effect. Comparison: when the vehicle speed is less than 130km/h, and displacement response curves in the three models are calculated when a highway bridge...

The relative differences in the flow characteristics of the fuel within nozzle holes of diesel injectors significantly influences the atomization and combustion characteristics of diesel engines. The numerical simulation of cavitating flow developed fully in nozzle holes of a vertical four hole injector...

A wet chemical method was used in this work to produce Ba0.985Bi0.01TiO3- BaMnxTi1-xO3(BBT-BMT) materials. With increasing Mn content, the ceramic capacitors display stronger temperature stability in its dielectric behavior. The dielectric properties of the samples were measured by a LCR meter. The micstructure...

Displacement and deformation of engineering buildings (structures) are objectively inevitable. However, all surface and underground buildings (structures) have certain structural strength to resist surface displacement and deformation. In this paper, monitoring characteristics of high-rise building,...

The field mill is always used to measure the electric field with charge at present. In order to get accurate measurements results, the field mill must be used belong with the ground plate system. The influence of the ground plate area on the measurement result has been researched by the simulation and...

In the smart substation security area, the IEC 62351 standard defines clearly security measures, provides security guarantees for substation communication system and network security. This paper analysises the part of IEC 62351 standard of GOOSE/SMV protocol security, finds out the shortcomings of the...

Non-uniform factor of wind pressure is used to express distribution unevenness of wind pressure acting on the conductor at same time. USA, Japan and Germany etc developed countries have carried out many field measurement about it. Field measurement research in China is less, it is also found during actual...

In the informatization age, more and more industries have realized the significance of introducing information technological means and made it as an important driver. Similarly, in the development of colleges and universities, only by applying information technology means can the development of them...

In this study, we proposed a novel complex neural network algorithm, which extends the neural networks based approaches that can asymptotically compute the largest modulus of eigenvalues and the corresponding eigenvector to the case of directly computing the largest sum of real part and imaginary part...

This study investigates sustainable health and safety (H&S) compliance among small-scale construction firms in Ghana’s Greater Accra Region. Recognising the vital role of H&S in enhancing worker welfare and operational efficiency especially in resource-constrained settings, the research examines...

This paper presents a U-shaped slot RMSA Antenna (rectangular microstrip patch antenna) tailored for wearable health monitoring systems, with an emphasis on global connectivity. The design process addresses key factors like flexibility and cost-effectiveness, which are critical for wearable antenna applications....

Amputations are not rare cases the number of people who need to wear prosthetic limbs is more than thirty million, which is larger than many people used to consider. Intelligent prosthetic limbs bring huge convenience to these disabled people in daily life and make them more confident. However, the techniques...

This research is motivated by students’ mathematical computational thinking skills, which still need to improve. So, the goal of this study was to analyze and describe how students in Class VIII SMP think about math when they solve problems about probability. The research method used is descriptive qualitative....

Information less than optimal in cyberspace is the leading cause of people with disabilities not getting jobs. The shortcomings of persons with disabilities are also the cause of the difficulty in obtaining information. While labor providers have opened up job opportunities for persons with disabilities,...

It is difficult to verify the reliability of a new type of ammunition components through traditional statistical testing methods. And the accelerated life test of ammunition components at the present often requires a large amount of sample size. The calculation model for minimum sample size of the Inertial...

The advent of mobile multimedia nurses great aspiration for the integrations of the relevant high technologies into English language curriculum. Mobile-multimedia assisted EFL teaching is theoretically based on constructivism, humanism and the input hypothesis, and practically supports the paradigm of...

This paper summarizes the composition and harm of automobile exhaust gas. It also briefly marshals the development and main components of automobile exhaust purification catalysts, of which three way catalyst is emphatically introduced. In this paper, some problems existing in the current conversion...

With the development of precision engineering and precision instruments, the micro-nano platform becomes the important carrier in the precision positioning technology, which provides large torque and high precision.The platform's performance is tested by using laser displacement meter.Four kinds of testing...

With the process of software development and application basing on network and cloud, the change of software development requires new software defect prediction method for these kinds of software development, which can solve the problems of the traditional software defect prediction method based on target...

In this paper, a time-dependent model is established to determine the optimal scheme which can bring economically attractive opportunity to a private firm. yield was taken into account in this model (yield is a variable varies from time). We build a time-dependent model to balance the costs and benefits,...

The 21st century is the era of leisure, Leisure PE as a positive, healthy, civilized social life style in modern society, and promotes the harmonious development of man and society, and promotes the comprehensive and coordinated development of human beings. Only by strengthening the leisure PE propaganda,...

This paper studies the dental caries, dental calculus deposits, smoke stains, bleeding gums and even lead to gum recession, tooth wedge damage caused by coronary heart disease, diabetes and cerebrovascular diseases due to incorrect brushing posture in daily life. This paper researches the health toothbrush...

Recoil displacement, recoil velocity, recoil resistance and gun carriage stress were selected as the key dynamic parameters. Measurement programs were developed respectively according to the characteristics of dynamic parameters. Live firing test was carried out, and measurement results of dynamic parameters...

By design the program and control the corresponding hardware devices, to design a Stepping motor control system to control the rotation of the stepping motor. The software part of this system is programmed based on LabVIEW, and communicates with the ELVIS II platform via USB port of the computer, so...

We have determined the patterns for age-specific changes related to activity of aspartateaminotransferase, alanineaminotransferase, gamma glutamyltransferase, ?-amylase, alkaline phosphatase and acid phosphatase in different parts of the stomach, liver, pancreas, duodenal, empty, ileac, cecum, colic...

Because the cable is laid underground, the space is not occupied, and an underground cable channel can accommodate a plurality of lines, and is favorable for the city street beautiful, so the cable is used more and more widely. With the increasing number of low-voltage cables, cable accident rate is...

A pot experiment was carried out to investigate the effects of applying uniconazole on growth and cadmium (Cd) accumulation of accumulator plant Stellaria media. The results showed that application of uniconazole inhibited the growth of S. media, and promoted the absorption and transport of Cd from soil....

In recent years, urban construction sped up constantly,the exterior design of urban lighting system and building attached great importance in order to make the city more bright beautiful. Even if at night,lights are illuminated brilliantly, become city's scenery, moreover many buildings use the glass...

Application of the principle of ultrasonic technology in traditional Chinese medicine extraction methods and the current major application for a review presentation, noted that ultrasonic extraction, their applications in medicine production, suggesting that ultrasound technology in traditional Chinese...

Cationic starch-based hydrogel was synthesized by simultaneous gamma irradiation of starch (St), acrylamide (AAM), allyl triphenyl phosphonium bromide (APB) and N,N'-methylene bisacrylamide (MBA) as cross-linker in aqueous solution. The molecular mass of the un-grafted AAM/APB copolymer, the cationic...

When the mole ratio of catalyst quantity to reactants was 0.019, that of alcohol to oil was 12, the reaction temperature was 150 ,the kinetics of transesterification of triolein with methanol was studied by means of four kinds of ionic liquids with netrogen chemical groups and different anions as catalysts....

In this research, polycarboxylate superplasticizer is synthetized by solution polymerization. Some influencing factors on synthesis of the product are studied such as raw material composition, reaction time, initiator and pH value of the reaction system. The results show: When the amount of MA used in...

Modern DC/DC Converter has characteristics of high efficiency, good output noise and low voltage ripple. It is wildly used in communication, computer, industry automation, military and aerospace. However, due to its strong nonlinear, time dependent and uncertain system, to some extent, conventional PID...

To deal with the large calculation error of ship magnetic field, this paper simulated the submarine magnetic field based on the software FLUX. Submarine’s geometry modelling, meshing and magnetic field calculation have done in order. According to magnetic field data and images, comparative analysis of...

Active noise control is combined with adaptive controller to construct adaptive active noise control. Adaptive active noise control is primarily researched in the theory and structure. DSP is applied in adaptive controller to design adaptive system for active noise control. Adaptive system can steadily...

Parallel Combinatory Spread Spectrum (PC/SS) communication system has higher data transmission capability and bandwidth efficiency than conventional Spread Spectrum (SS) communication system. Meanwhile, PC/SS system must correctly select all maximal PN sequences from PN correlations, otherwise it will...

Based on the Sichuan-Tibet highway south line (Tibet border line of State Road 318 K3473+000-K4670+000andK1324+000-K1473+000NationalHighway214line)the survey results,using Midas/GTS to establish the numerical model of slope stability analysis,analysis of two slope loose accumulation effect of subgrade...

Service robots are increasingly being developed for hospitality environments, including restaurants. This preliminary study investigates the development of a ROS-based autonomous delivery robot capable of navigating indoor restaurant layouts to deliver food efficiently and safely. The robot system integrates...

The primary difference between machine-made sand and river sand lies in the presence of stone powder. This paper conducts research on the application of machine-made sand concrete in airport pavement construction, specifically focusing on the application of machine-made sand concrete with stone powder...

T-5 strains of Mortierella were screened from soil sample, which had a high lipid contents. Through the orthogonal experiment, the optimization conditions of lipid were that temperature was 28°C, pH was 6.0, glucose concentration was 100g/L and inorganic nitrogen source concentration was 1g/L. The results...

ESL examination, instead of TOEFL and IELTS to apply for American universities, are increasingly sought after by the majority of learners. Test paper generating system for ESL examination is designed in this paper to help teachers free from the onerous task of generating test paper. The efficiency and...

Environment protection is very important for all of us. Ecological balance and environmental protection do not by all means depend on technology. The essence lies in human understanding of nature and the concept about human development. The scholars in Humanity play a more important role than scientists...

This paper described the distance metric of the Euclidean distance of SIFT operator and Hamming distance of BRISK operator represented based on OpenCV to extract and descript feature points on the two relatively low altitude remote sensing images , and then chose BruteForceMatch (violent match) and FlannBasedMatch...

This paper deals with two Parallel Surface Cracks of infinite plane. By using a hybrid displacement discontinuity method (a boundary element method) proposed recently, two Parallel Surface Cracks of infinite plane models are analyzed in detail. By changing the geometrical forms and parameters of crack,...

Recently,the interest in purple sweet potato has increased due to its high nutrients content. In order to improve the drying quality of purple sweet potato, in this study, response surface methodology (RSM) was used to optimize operating conditions of the purple sweet potato in a hot air drier and quadratic...

For many years the low pressure mercury lamps are widely used in general lighting and ultraviolet radiation. Because of its strong 254 nm ultraviolet and 185 nm vacuum ultraviolet radiation, it has played a very active role in environment, agriculture and medical fields. In environmental treatments,...

The effects of applying four accumulator species (Conyza canadensis, Eclipta prostrate, Nasturtium officinale and Cardamine hirsute) straws in cadmium (Cd) contaminated soil on phosphorus (P) and potassium (K) uptake and soil enzyme activity of Capsella bursa-pastoris were studied through a pot experiment....

In the field of computer vision research, moving target tracking of sequence images is not well solved, and is an old, important and challenging task. Fast and accurate completion of moving target tracking is very an important and difficult problem. In a dynamic environment, moving target tracking is...

As a special kind of linguistic phenomenon and bridging ties, Semantic association ellipsis is a kind of semantic vacancy, omitted contents can't be recovered through context, the understanding of ellipsis is a difficulty in the study on semantic association ellipsis. This paper which based on the ICM...

Microstructure and facture morphology of the W6Mo5Cr4V2 steel were investigated by optical microscope (OM), scanning electron microscope(SEM) and Rockwell hardness tester , in order to figure out the reasons of brittle fracture and crack. They show that the carbides inhomogeneity is very serious and...

The paper focus on the problem that a certain type of rapid rate firing gun, which the army equipped, it's muz-zle velocity is difficult to measure. On the basis of summing up the advantages and disadvantages of all kinds of muzzle velocity measurement method, the paper put forward the phase measurement...

This paper did carefully research on the principle of point test method for semiconductor devices testing, and pulse step current source and voltage source was developed. Verification system of the interval pulse IV test method was developed to identify the relationship of the pulse width and interval...

Analytical models were developed for the analysis of adhesively tapered scarf joint repair subjected to unidirectional tension. Stiffness and strength of the joints were analyzed, and the corresponding analytical equations were presented. Extra plies on repair patch were also considered in the models....

In Web applications, it is often needed to upload a file to the server. With current file upload methods, it is difficult to deal with large file uploading and user experience is also bad. Uploading big files often failed because of network interruption and the client had to reupload.With the development...

Laser-motive UAV (unmanned aerial vehicles) is a new concept UAV. Based on analysis of conservation equation of photoelectric conversion irradiated by laser energy, UAV load’s demand for power density and heat convection balance, a model is established to analyze the relationship between UAV maximum...

The problem of a steady power increase of electric equipment on the cars and the need for its daily operation emphasise the relevance of research, aimed at predicting the automotive batteries state of charge in order to ensure reliable starting of the engine at negative temperature. The purpose of the...

CTA-based membranes for forward osmosis (FO) were prepared by immersion precipitation. Casting composition and coagulation conditions—solvent/acetone ratio, temperature, evaporation time of coagulation bath—were optimized to obtain membranes with best performance. Membranes were characterized by various...

The absorption characteristics of formaldehyde, acetaldehyde, propionaldehyde, n-butyraldehyde and valeraldehyde by Schefflera octophylla and Chamaedorea elegans were investigated at the laboratory simulation environment of short-term exposure to different CO2 concentrations. Under normal circumstances,...

This paper has done some research on the flatness measuring method of satellite antennas under thermal loads. A real time thermal control technique was proposed. Using this technique, the temperature of the satellite antenna was heated from the room temperature to 70°C, and the temperature distribution...

The new type of pumping unit with incomplete noncircular gear reversing mechanism can achieve automatic reversing, intermittent variable speed movement, but in the conversing prone to movement interference phenomenon. Firstly, two kinds of modification methods are proposed for the first tooth of the...

During tunnel construction, the stability of tunnel surrounding rock caused by excavation of water-rich section has always been a major problem in the project. In this paper, the influx of water in the face of the excavation of the water-rich section of the Junmachang tunnel caused a large amount of...

In this paper, after understanding the relevant circumstances the of the cooperative enterprise packaging bag production, the bagging mechanism of the mechanical forming has been studied. The structure is modeled with SolidWorks, and the mechanical principle and mechanical design are used to realize...

To address the inaccuracies associated with the aerodynamic force coefficients and wind loads obtained from wind tunnel tests of the high-speed railway train models, this paper presents a method for predicting surface wind pressures and aerodynamic forces on trains based on Kriging interpolation model....

An approach of distance-field-based layered manufacturing (LM) of FGM objects is presented in this paper. Firstly, a 3D model is sliced and scanned to a series of 2D point clouds. Then, through uniformly subdividing each 2D point cloud we can compute the signed distance field of each grid points. According...

Fault diagnosis model is the core of virtual simulation and hardware-in-loop simulation training, which has become a hot spot in current research. Construction of the fault description model of the virtual simulation training and hardware-in-loop simulation training is an important theoretical support...

Overhead transmission line maintenance, testing and inspection work part, all need to climb to the top of the pole, and irons is one of the essential tools for climbing pole. At present, some traditional irons safety problems in construction safety is more and more attention, it is bound to improve the...

The purpose of this study is to solve the computer security problems. Based on the traditional security model, the hidden dangers of computer security and the advantages and disadvantages of various intrusion detection techniques are analyzed. A computer intrusion detection system based on an improved...

In the field of lunar subsurface drilling and sampling, flexible core-tube sampler has the advantages that it can maintain the layered information and mechanism of the lunar soil sample. In this paper the PBO fiber is proposed as the textile material of the core-tube, along with its proceeding technology....

This paper focuses on the preprocessing method of control points in geometric correction for UAV (Unmanned Aerial Vehicle) remote sensing image. Control points preprocessing refers to find out the calibration points from the selected control points, so as to use the calibration points to fit the geometric...

Firstly, we define Z as the index measuring the ability of one region to meet its water demand. Next we design an intervention plan based on most influential factors in Xinjiang. The intervention plan has four aspects: Dispatch water resource, employ advanced irrigation technology, proper pricing mechanism...

In this paper, the dynamic response analysis of long-span continuous bridge under earthquakes and train loadsimultaneously were performed. In order to considerthe coupled vibrations of vehicles and highway long-span continuous bridge, a numerical modelinvolving soil foundation under inclined seismic...

Under the "order contract mechanism of company + farmer" of supply chain of agricultural products and introduce the fair system, studies the influence on the supply chain and the coordination contract as farmers with behavior of fairness concerns This paper establishes two echelon supply chain system...

In this paper, a finite element software ABAQUS is carried out to calculate the ultimate load bearing capacity of the concrete under the restraint of prestressed bar. According to the failure criterion of Mohr-Coulomb, the calculation method of ultimate bearing capacity is put forward, and get the ultimate...

This work reports the results of carbonate precipitation of soluble manganese by CO2 with alkaline additives with the aim of eliminating the harm caused by electrolytic manganese residue (EMR). Results showed that CaO exhibited a better performance for the precipitation of manganese which was converted...

As time enters 21st century, the world enters the era of oil scarcity, which is the so-called "post-oil era." Onshore exploration peak period has expired; the energy gap gradually expanded into the marine transfer is the trend. The main forms of offshore platforms are: jacket platforms, jack-up rigs,...

According to the characteristics of anaerobic, aerobic and semi-aerobic bioreactor landfill, combined with the status of rural garbage disposal. Indoor simulation comparison tests were carried out between anaerobic (R3-I) - semi-aerobic (R3-II) united bioreactor and anaerobic (R1), semi-aerobic (R2)...

Soda slag, produced as the solid waste from the ammonia-soda process, was treated by heating, adding additives and other methods. It was found that the chlorine ion content changed with the treatment of heating or adding additives. Heating treatment showed little effect on the decrease of chlorine ion...

Flash animation is a form of digital media with simple images, which is popular with exhibition activities, such as commercial advertising, online game planning and teaching simulation. Since the advent of animation for more than one hundred years, the animation making has long been a difficult business...

Transformer in the operation process, iron core, winding and steel structure to produce loss. These losses will produce heat, leading to the transformer temperature rise, the aging of insulation materials to accelerate, the transformer's service life is shortened. In order to ensure that the temperature...

This paper establishes hydrodynamic models for the focused river section by Delft3D model, simulates the oil spill trajectory and the fates by Oilmap model, and establishes a combined application method of hydrodynamic and oil spill simulation model available for the Yangtze River and other inland waters....

A pot experiment was carried out to investigate the effects of applying naphthalene acetic acid (NAA) on growth and physiology of Cosmos sulphureus. The results showed that application of NAA promoted the growth of C. sulphureus when the dose of NAA was not more than 15 mg/L. When the dose of NAA was...

In the case of a Formula Race car following another car, the aerodynamic package of the car at the front generates turbulence in its wake, and the difference in the incoming flow will have a great impact on the aerodynamic efficiency of the car at the back of the queue. This paper takes Formula Student...

In recent years, multilevel inverters (MLIs) have found major applications in motor control and renewable energy systems (RES). Solar photovoltaic (PV) arrays have varied output voltages and require the support of battery energy storage systems (BESS) to maintain controlled output. The use of modular...

With the advent of the new energy era, the requirements for power supply voltage regulation accuracy and dynamic response in high-precision equipment are becoming increasingly strict. As a core step-down topology, the Buck circuit has extensive applications in solar power generation, electric vehicle...