Advances in Engineering Research

Efficient heat dissipation of high power and a high heat flux density for power electronic devices are demanded, along with high reliability, high power density, miniaturization, and a light weight. One solution is to transfer heat from the electronic device to the surrounding environment rapidly by...

This paper investigates the asymptotical stabilization via state feedback for a class of new chaotic systems, which nonlinear terms are monotonically increasing odd functions with the range [ 1, 1], with a quantizer connected on the input channel. The updated law and adaptive law of estimate boundary...

A Brazil near-shore wave energy converter uses a large float and a long arm to drive a pump-turbine-generator system on land. This paper proposes to convert the float into a Circular-Slide Wave Energy Converter with on-board power generating equipment.

PID controller was widely used in various kinds of control process for its good stability and high reliability. But PID control system can not reach the expected effect for some nonlinear and time-varying characteristics of complex production process control. The fuzzy PID control method was put forward...

Analytic Hierarchy Process (AHP) is a multi-criteria decision-making method combining qualitative analysis with quantitative analysis. This method can analyze the essence, influencing factors and inherent relations of the problem, so as to construct a hierarchical model and solve problems easily with...

The mathematical problem of synchronization of material flows in small-scale production is a statement of objectives, criteria and optimization demonstration. It is proposed to use the best practices of Lean and QRM approach as applied to small-scale production, taking into account the specifics. There...

According to the combination of lower extremity rehabilitative robot(LERR) and trainer, the effects of multi-point driving form and single point driving form on muscle force and joint torque are explored. The musculoskeletal model of lower limbs was established, based on the physiological structure of...

This paper will aim at calculating parameters and solving its optimization problems of folding desk, according to the given plank and the size of the folding desk, deducing the calculation formula of the machining parameters making use of the geometrical relationship, establishing the multi-object programming...

The existing prediction methods for SO2 concentration mainly have the disadvantages such as no unified sources and influences, sensitive to small sample, easy to fall into local optimum etc. In order to solve these problems, a method for SO2 concentration prediction is proposed, based on fuzzy time series...

This paper mainly introduces Turkmenistan's development status and investment policy of the transportation industry, and analyzes the favorable factors and investment risk of Turkmenistan's environment, then based on the particularity of the transportation project proposes that when China enterprises...

Based on the JC method (reliability calculation method) proposed by the Lcwick et al. [1] and recommended by the Joint Committee on Structural Security (JCSS) and the fourth strength theory, the reliability design formula of the thin-walled cylinder of pressure vessel is deduced. And the Monte Carlo...

In this paper, two-stageASBR process composed of two anaerobic sequencing batch reactors (ASBR) was used as the reaction device to remove organic matter and ammonia nitrogen in high concentration nitrogen-containing organic wastewater,stage1 to adsorb and remove the organic matter, stage2 to remove ammonianitrogen...

A one-dimensional quantum four-state Potts model is investigated in the context of a tensor network algorithm based on the infinite matrix product state representation. The local order parameter and entanglement entropy are computed. The scalling for the maximal entropy of the four-state Potts model...

Optimization and calculation of the phase diagram of Pt-Sn binary system were presented by Pandat software.The Gibbs free energy of the pure component (Au and Pt) was described by the expression of the SGTE (Science Group Thermodata Europe) database, Using the solid solution phase thermodynamic model...

The born of GUI is a milestone in the development of software. It is very popular and welcomed by the consumers because of its friendly user interface and easy straightforward operation. Meanwhile it brings new challenges for the automation software testing technology. This paper begin to discuss with...

The signal noise and attenuation in channels severely affect the communication quality in power distribution network. Orthogonal Frequency Division Multiplexing(OFDM) has an excellent antijamming capability and a high rate of channel utilization and is widely adopted in power line communication. In this...

The problem and disadvantage of modern sheep farming lies in the fact that the existing production models cannot meet the existing needs. There is an urgent need for new technologies to modernize equipment and digital management of breeding farms, in order to enhance the mechanization and automation...

Capillary gravity circulation cabinet is an air-conditioning terminal that integrates dehumidification, refrigeration, and heating functions. It was invented in Germany is now being applied in some office buildings in China. In this paper, the temperature field of the gravity circulation cabinet in different...

Disasters, both natural and human-induced, pose significant threats to human life, particularly in disaster-prone regions like Bangladesh. Efficient and rapid rescue operations are crucial to minimizing casualties and damage. This study presents E-DRONE (Emergency-Drone Rescue Operation and Networked...

The purpose of this study is to determine the dimensions or factors of tourists’ motivation to hot springs tourism. It is driven by a research gap that past studies on hot springs tourism mainly focus on the relationship between motivation variables with various indicators and other behavioral constructs....

In response to the global call of environmental protection, a kind of environment-friendly air circulation refrigeration system is analyzed . Working principle of air cycle refrigeration system is introduced.The advantages of air refrigeration system are summarized, and main research achievements and...

Advanced biodiesel derived from waste cooking oil (WCO) is a promising diesel alternative because of its renewability and its less negative impact on food supply as compared to traditional biodiesels. WCO biodiesel can be catalytically produced from waste cooking oil and alcohol through the process of...

With the rapid development of smartphones, Android system by its unique openness, rich hardware selection, convenient application development, is accepted by more and more people. The mobile game based on Android, is gradually popular in the crowd. The game in the research with a beautiful picture and...

The wireless telecommunication techniques based on android operation system has been widely used both in life and work. It is of huge importance to classify and monitor the accurate android network traffic . However, the appliance of port jump technique and port encryption technique make classifying...

To monitor the soil temperature field of a ground source heat pump project in Changchun and research their variation and influencing factors. Research showed that: the soil temperature field with the heat pump heating/cooling alternate operation present a periodic variation. The impact of outdoor temperature...

The power load gradually increases with the development of the city construction which highlights the optimization of power grid dispatchent, and in which a new computer system, the GIS short for Geographic information system plays an important role. This text on basis of introducing GIS conotation,...

Due to their adverse health effects and their abundance in urban areas, diesel exhaust ultrafine particles caused by the aftertreatment devices have been of great concern in the past years. An experiment of particles number emissions was carried out on a high-pressure, common rail diesel engine with...

We study the thermal transmission of the static water. First we divide the water into lots of little grids in three-dimensional space and study the temperature distribution of the static water. To make accurate numerical calculation, we then discuss the thermal transmission of the typical grids and establish...

The detection results in the article are gained through tests on the material strength, reinforcement location, scantling design and slab thickness of civil engineering division of Lujiang’s gymnasium. As for the substandard parts, treatment proposals are put forward to ensure the project quality

The different layouts of knee braces will affect the mechanical performance of the structure to some extent. Nevertheless, an extensive review of related literature indicates that the effect of different layouts of knee brace in steel frame structure is not considered. Typical models of multi-storey...

Ligand N2,N6-bis(2-hydroxyethyl)pyridine-2,6-dicarboxamide (BHPC) was synthesized and used to construct lanthanide-based mesoporous material Tb-BHPC-MCM-41. In the structure of the luminescent material, BHPC was anchored into the forming MCM-41 host by the reaction between the hydroxyl group and active...

David Herbert Lawrence (1885-1930) was an outstanding modernism novelist and poet in the 20th century, who was known as "one of the greatest figures in English literature history. It is known that Lawrence's literary career started with poetic songs, and the earliest two poems "Hydrangea" and "Lychnis”...

In this article, the performance comparison evaluation of self-made solution process Butyl rubber (IIR) LH-1 and two kinds of imported Butyl rubber(IIR) (solution process IIR ET-110 and slurry process IRR EJ-120), the results showed that the self-made LH-1 had some differences with the contrast sample...

Distribution feeders are sometimes damaged heavily by typhoon every year in the coastal region. A finite element model of a standard feeder is established by ABAQUS/CAE firstly. Then the deformation under different wind speeds after the wind loading is applied by equivalent inertial acceleration. The...

Aiming at the problem of machining quality caused by the sharp fluctuation of grinding force during the grinding process of non - circular parts, a new method for determining the transition profile based on the presetting of the grinding arc length is proposed. It is recommend to use the target profile...

the new Magnesium Phosphate Cement (MPC) was prepared by using the by-products of extracting lithium boron magnesium oxide (B-MgO ) as raw material. The influence of hydration hardening process was studied by testing setting time and compressive strength of different raw materials ratio of MPC. The phase...

In order to fully protect the safety of live working personnel, high electric vehicle must implement multiple safety protection. First is the safety of the hydraulic system, not in office under the condition of artificial ac-tive operation can realize self-locking; Then the insulation safety, in can't...

In order to improve the quality of data collection, a method of dada collection with high reliability is proposed in this paper. Based on the data collection method, the software and system platform of client intelligent electricity information system (CIEIS) is designed to further analyze client electricity...

This design is positioned in the outdoor air environment is increasingly deteriorated premise through the improvement or redesign, to improve people's workplace environment for desk type air purifier; and stylish innovation to meet the fast-paced city life crowd physiological and psychological needs...

The texturization of monocrystalline silicon wafers using a mixture of potassium phosphate tribasic (K3PO4) and potassium phosphate dibasic (K2HPO4) solutions has been investigated. A series of comparative experiments were made to indicate the dependence of hemispherical surface reflectance on the solution...

The emergence of full-controlled power electronic devices, such as VSC, provides a new direction for the development of HVDC. Based on the analysis of the steady-state model of VSC-HVDC, its mathematical model for Newton method power flow caluclation is developed. This paper proposes a uniform iterative...

This paper introduces the configuration and operation principle of the hydraulic in-wheel motor drive system for heavy truck. According to the regenerative braking function of the system, the distribution algorithm of braking force is proposed and a regenerative braking control strategy is developed...

Based on investigation dada on lead (Pb) in July and October 1984 in bottom waters in Jiaozhou Bay, we analyzed the content, pollution level and distribution of Pb. Results showed that Pb contents in 1984 in bottom waters were 1.33-17.34 g L-1 and were meeting Grade II, III and IV in National Sea Water...

With the external micro-jet to stimulate main jet flow to generate multi-stage oscillation and get time-averaged pulse, a novel high-efficiency jet mode of static gas wave refrigeration is proposed. Investigation made by CFD indicates that the loss of total pressure is less than 45% of that of the self-excited...

Due to huge advantages, phase change materials (PCMs) are widely applied to various fields. Particularly, they are essential materials in regeneration, development and utilization of energy. However, because PCMs generally contain alloy materials and have some corrosivity, some leakage losses may be...

4-UPU belongs to the category of less degree of freedom parallel mechanism, this paper analyzes kinematic pair of the parallel mechanism and the structure design of key parts, and selecting the best design scheme.According to the bottom and the principle finish three-dimensional entity assembly, in the...

The ABS/PET and ITTR/ABS/PET alloys were prepared by melt blending method using hard-shell structure of isocyanate terminated silicone resin as compatibilizer. Moleculestructure of ITTR, PET and the alloys had been characterized by FTIR and mechanical properties such as impact strength, bending strength...

The 21st century is an era of electronic information technology. Therefore, the mastery of application features of electronic information technology and prospect analysis become the hottest research topic of human beings in the new era. This paper briefly discusses the development status of electronic...

Bone mud liver sauce was a sauce which the bone mud and chicken liver was mixed in the appropriate proportion and its formula was optimized so that the sauce was obtained to be used for bread and rice. The sauce had a good taste and unique flavor, the sauce also broke the limitation of traditional sauce...

Corn stalk was used as the research object to study the effect of different ratio on the degradation rate of corn stalks by cellulase addition, ratio of material to liquid, temperature and time. Then the optimum technological conditions of corn stalk degradation were screened out. The results showed...

This paper focuses on the stability of landing gear systems for quadrotor UAVs. As drones are increasingly deployed across diverse applications including precision agriculture, emergency logistics, and infrastructure inspection, landing gear stability becomes critical to ensuring safe and reliable operation...

While deep learning-based methods for Single Image Super-Resolution (SISR) have consistently set new performance benchmarks, their substantial computational and memory footprints pose a significant barrier to deployment on resource-constrained devices. This challenge is particularly acute for SISR, a...

The method of multi-objective optimization is used to research optimal allocation model of water resources in urban area of Tai'an City. The supply and demand situation of water resources is analyzed. The optimal allocation scheme is given, which includes basic and recommended scheme of the planning...

Although having advantages of high integration, Low power consumption and strong processing capability, etc., it is not easy for SDRAM to be developed and applied because of its timing complexity. To reduce costs, and shorten the development period, combining with features of strong reconfiguration and...

The problem of reclamation of waste pits in oil fields is still being solved by a costly method. The accelerated technology of sludge dewatering with electroosmotic effect is proposed. The concept of specific energy inputs for mass transfer is introduced. To eliminate the influence of relaxation of gradient...

In recent years, environmental protection and management of drinking water sources have aroused widespread concern in the community. In this paper, firstly introduce the basic information of the water source; secondly analysis the reserve source of pollution status of drinking water and evaluation; in...

In order to realize the precision flow control and widen the application scope of flow pump, in this article, the giant magnetostrictive material was used as driving source to design a new type of precision flow pump. Adopted I-shaped pump body to simplify the structure, simultaneously, it enhanced the...

The vibration characteristics of bracket structure in automatic drill-riveting system have great effects on the final quality of aircraft panel. Modal analysis can be used to determine the vibration characteristics of mechanical system. After briefly expounding the basic theory of modal analysis, a reasonable...

In order to study the impact of train load on deformation of big-diameter shield tunnel, the Vehicle-Track-Tunnel-Soil coupling dynamic model was established, and the reaction force of fasteners was used to transmit between the Vehicle-Track coupling dynamic model and the Tunnel-Soil finite element model....

The Shaanxi province is long and narrow from north to south, covering three climate zones. There are enormous quantity and various kind rural residences. With development of era, there was a lack of professional guidance in local new village construction, and it led to some problems in rural areas, including...

The paper presents the research results for using zeolite from Lyulinskoye deposit (Khanty-Mansi Autonomous Region) in nutrition of young pig stock. Mineral and radionuclide composition of zeolith have been studied. It has been found that the zeolith is a mixture of minerals: clinoptilolite (about 50%),...

When there are imperfect defects in the concrete elements, it will have seriously impacted on the bearing capacity, durability and lifetime of the structure. Ultrasonic technology was used to effectively test the imperfect defect in concrete. The results show that the technology of the plane for measuring...

Social entrepreneurship – the hybrid approach to business that simultaneously pursues financial and social goals through social entrepreneurship – is an expanding area of research, education, and practice worldwide. In terms of business practices, it has become an increasingly relevant approach in societies...

This study utilizes the Taguchi approach to optimize diesel engine characteristics, such as the compression ratio (CR), engine speed (ES), and the maize biodiesel combination ratio (MB), for better performance. Among the studied parameters, there are five levels of CR, ES, and MB. The output parameters...

Water resources carrying capacity is an important indicator for evaluating the sustainable use of regional water resource. It is very important to evaluate regional water resources carrying capacity from systemic perspective which was a benefit for scientific management of water resources and protection...

Mt. Sanqingshan Geopark in Jiangxi is famous for its granite peak-forest landforms in the world. Low temperature thermal-chronology is used to analyze the uplifting and denudation process of Mt. Sanqingshan in the paper. The fission track ages can be divided into three groups, which can be related to...

This paper discusses the organization and management of sci-tech project acceptance meetings (STAMs) from the perspectives that sci-tech projects shall meet the acceptance criteria, that documents for the STAM shall be complete and standardized, that a defense plan for the STAM shall be prepared, that...

This precise vertical machining center is a new type of product structure. In order to improve the performance of the machine tool, two kinds of bed structural design schemes are proposed. The bed structure of the first scheme is tilted, and the second scheme has a flat bed structure. The two kinds of...

In order to broaden the operating temperature window of a Cu-based oxygen carrier (OC) in a chemical-looping combustion (CLC) process based on two fixed bed reactors, in which there exist great temperature distributions in radial and axial directions, through reducing its lower temperature limit, an...

Occlusion detection and automatic adaption of a generic pedestrian detector to a specific scene are difficult problems in intelligent monitoring. When a detector trained in a specific scene is applied on a new scene, its accuracy will decrease greatly. To solve this problem, we propose a new detection...

This article mainly introduces the design of the continuous and automatic controlled congestion irrigator based on STC230 color sensor, which contains hardware design and software design. There are three aspects being taken account of in hardware design. They are the power supply, the whole single processing...

1,3-Propanediol (1,3-PD) is an important chemical intermediate in manufacturing polyethers, polyurethanes and polyesters. Production of 1,3-PD by microbial fermentation has attracted increasingly attention of researchers. In this study, deletion mutant of K.pneumoniae HD-1 constructed by knocking out...

This paper discussed the situation of value system of digital cultural resources at present. Through a variety of researches about methods of value evaluation, digital cultural resources are discussed and defined briefly. And its values are estimate depending on its own characteristics of different digital...

the broken pile is one of the serious accidents due to quality in bored pile of bridge, and different treatments have been put forward toward the pile breaking problem discovered in pile checking; and we expound emphatically the problem of the deep broken pile under the bridge bored pile through the...

The energy-saving renovation of existing residential buildings in rural areas is a complex system project. The role of BIM technology in existing residential buildings in rural areas is conducive to the collection of information on the building of existing residential buildings in rural areas. It also...

The given article demonstrates a tooth mesh modification of a surface reducing gear of a rod driven screw pump used for oil production. The Novikov gearing for reducing gear transmission has a set of advantages over the involute gearing being applied at present and is proposed to be used instead. The...

For wireless sensor network in substation equipment charged detection, repair, such as communication failure causes changes in node network error of high power consumption during faults, putting forward the working cycle of the adaptive tissue repair method and low power network by dynamically adjusting...

This research shows that IoT and Smart Campus are issues that will remain hot to be discussed even in the next few years, such as sustainable universities, big data, and the internet of things. The sustainable university variable is also a variable that is still rarely found and is a contemporary thing...

This study presents an energy performance evaluation of crystal tube-ice making machines (CTIMM) using three different refrigerants include R-404A, R-134A, and R-717 incorporated three cooling types of condenser involving air cooled, water cooled and evaporative cooling system arrangements. The evaluation...

Multi-axial fretting fatigue wear mechanisms of steel wires of hoisting rope and the protection design were explored in the present study. Multi-axial tension-torsion fretting fatigue behaviours of steel wires were investigated employing the self-made test rig. In order to quantitatively explore wear...

At present, in the steel tube tower, all the diagonal members’ axial leads intersect on the main members’ axial leads which would always cause the large size of node plate. The existing theoretical analysis shows that negative eccentricity of node connection can decrease the size of node plate, reduce...

The vulnerability of power system is always one of hot areas, which was concerned by many researchers in last several decades. In this paper, a state vulnerability assessment model and index based on the margin of voltage stability is introduced, namely comparing the margin of the actual operating voltage...

High temperature corrosion behavior of Ni-Fe-based Superalloy GH984G was studied in the synthetic flue gas environments with different SO2 concentration at 800 C. The microstructure and composition of the scales were investigated by scanning electron microscope/energy dispersive spectroscope and X-ray...

Recently, quantifying the complexity of the physiological time series has become more and more concerned. As one of the most complex physiological signals, electroencephalogram (EEG) including a large number of physiological and pathological information attracts widespread interest. However, many traditional...

Experimental comparisons of coke qualities with and without pitch incorporation during biomass/coal co-carbonization were conducted. Meanwhile, effects of biomass and pitch on the thermoplastic properties of the biomass/coal blends and coke quality indexes, such as M10, M40, CRI, and CSR were also discussed....

The relationship between stress, displacement of the crack tip and stress intensity factor is mainly discussed. Calculating K1 of type I crack by finite element software ABAQUS. The effects of different crack forms and the corresponding stress intensity factors on the mesh size are compared. Research...

Traffic is an important area of cloud computing application and development, and the traffic cloud computing is a key means to provide powerful support for the basic service and promote the coordinated development of the transport system by service model innovation and information resources integration...

The appear of new medias in this media era greatly influences the current college ideological and political education, which however still fails to get rid of the traditional education ideals and sticks to the one-way instillation in teaching with positive information only. Actual practice is neglected,...

The gallop of high voltage transmission line can lead a mass disaster to power facilities but it seems that people are not clear totally about the galloping mechanism. To make sure the safety of power grid, this paper studies deeply on the galloping oscillator model of transmission conductor and given...

Some specific airworthiness regulations about the precision of the velocity, pressure and height measurement have listed and formulated here. Computation are done to get the exactly value of the requirements about static pressure residual installation error at a range of height and velocity.

There are more and more applications of Solar water heater in urban and rural, the research and development of advanced Solar water heater control system becomes more and more important, to improve the working performance and convenience of solar water heater. According to the requirements of the solar...

Represented by the Xingzi Station, it was studied that the Poyang Lake water level change trend in nearly 60 years. The improved MK test and homogeneity test are used to detect trend and change points in the series of maximum and minimum water levels. Furthermore, the relationship among extreme water...

Applying Educational Data Mining (EDM) for decision making is an emerging interdisciplinary research field. From the view of student development, this paper presents a framework for educational decision making, which can explore some laws and characteristics in student development to improve educational...

With the emergence of a large number of 3D human motion capture database, which makes how to efficiently analyze and process the data of human body movement, and make use of the motion capture database become a new challenge. In order to reduce the high dimensional complexity of the data, firstly, a...

The purpose of this paper is to explore the new relationship between the travel time and traffic flow on the road in the static state that inflow equals outflow. This paper proposes selection mechanism by a parallel two-link network model. Through computer simulation, we get the conclusion that in the...

This research presents data from The Higher Education Data Base (PDDikti) in 2019 Higher Education Statistics to investigate the gender representations at higher education level and faculty members limited to universities in North Sumatera. Then, reviewed about challenges of young Indonesian women in...

A series of low cycle fatigue tests under stress control were conducted for the smooth and notched specimen of 022Cr17Ni12Mo2 stainless steel. The ratio of fatigue strength of smooth specimen to notched specimen decreases with decrease in fatigue life. The notched effect is more significant at lower...

The performance for fuse electronic components may have degradation after long-term-storage. In order to as-certain the components which its performance has degradation, two fuse electronic parts, which have been stored for 10 years, are chosen as samples for an accelerated test. It shows that the white...

Big data is the focus in power system currently. In order to analyze and classify the electricity model of clients, identify the avoiding peak space intelligently, extract value-added information of clients and control the electric load actively, it is extremely necessary to analyze the information of...

At present, the resources integration and sharing efficiency between the government systems is not high in China. The phenomenon of repeated system development is common, which results in a tremendous waste of resources and cannot be adapt well to the information exchange, sharing and unified management...