Advances in Engineering Research

Horizontal well fracturing is often used in low-permeability reservoirs to increase the production of oil wells. Reasonable fracture parameters design can fully release oil flow in artificial fracture, therefore increase well productivity in horizontal wells. Take Dagang Liujianfang low permeability...

Automatic parking system is a non-accurate modeling system, and the fuzzy algorithm is an excellent choice for the non-accurate modeling. Based on the vehicle kinematics modeling and the experience of artificial parking, we establish the horizontal and vertical models of the vehicle automatic trajectory...

Putting computers and large precise instruments into the teaching of structural chemistry, designing and developing comprehensive experiment, and revealing learning level of structure-property-application, will contribute to enhance students the learning interesting on theoretical knowledge, exercise...

Many aspects of modern ergonomic space development in the Republic of Bashkortostan are still poorly studied. The study of linguistic landscape of the multiethnic region is one of the most important linguistic and socio-cultural phenomena which represents a means of visual communication. Research into...

This article introduced one kind of brand-new control system about food processing, which uses on the lower and upper position machine structure pattern, by the plate computer machine took on the upper position machine, and SCM takes on the lower position machine. Paper main content covers system design,...

Feces and urine from beef cattle are not yet fully optimized by farmers. If there is a modification process with the feces and urine, it can be a source of organic fertilizer. Other than helping farmers with their fertilizer needs and supply, it will also reducing the environmental pollution. The purpose...

In this paper, we evaluate the advantages and challenges of E-learning in Politeknik Negeri Semarang. The advantages of E-learning are: the students think that E-learning is very convenient because they can reduce print work, get the material efficiently, get a real-time score after examination, have...

Many performances in sports including hockey players need strength and power. The purpose of this study was to investigate the strength and power of female field hockey players. Subjects were 11 female sub-elite field hockey players. Data was obtained from isokinetic strength and power test using a Cybex...

This research aims to analyze the effect of composition on used tire powder asphalt composites and recycled plastic (rHDPE) on tensile strength and impact strength. There are two types of composition in this research; the first is 500 grams of used tire powder, 100 grams of asphalt with rHDPE variations...

In response to the key navigation parameter display and control requirements of underwater vehicle, this paper adopts the “module function black box” program concept, visual display, multi-threading and other key technologies to design a key navigation parameter display and control software for underwater...

In order to evaluate performance to increase the competitiveness and quality of universities, it is necessary to make efforts to determine the performance indicators of universities, one of which is the quantity and quality and relevance of graduates. This study aims to optimize the tracer study as an...

Innovation from creative product design has become essential to the success of many companies. The products marketed must be specially distinguished from others to meet user demands. Consumers will prefer products that suit their needs and the visual impression that the product gives to their emotions...

Exploring the vibration transmission law in structures is an important method to realize vibration reduction and damping. Composite sandwich structures not only possess certain mechanical properties but also offer the advantage of lightweight construction. In this study, based on the composite coupled...

Permafrost thaws accelerate the rates of carbon released by the soil into the atmosphere and cause significant positive climate-change feedback. We selected Munkhkhairkhan mountain as the study area. The main purpose of this study is to estimate GHG emissions and to calculate the emission factor (EF)...

The digital age has changed the business paradigm with digital marketing becoming a key element in dealing with modern market dynamics. Changes in consumer behavior in online content consumption encourage companies to utilize digital technology to reach a wider audience and connect personally. A deep...

When the integrated pipe gallery passes through the railway line at a close distance, when the railway line is overhead, the temporary reinforcement system of the line will bear the main load of the continuous operation train, so the stability of the line reinforcement system determines the safety of...

Human gestures can be used to interact naturally with computers. One of the human gestures is hand gestures. The hand gestures signal in hand gesture recognition systems can be acquired through on-body sensors, cameras, and radar sensors. Compared to the other two data acquisition devices, radar sensors...

Z-source Inverter (ZSI) is widely used in renewable energy, electric vehicle charging systems, and other fields because of its voltage boost ability and good decoupling characteristics. However, ZSI is prone to problems such as Direct Current (DC) link voltage fluctuation and output current harmonics...

There are problems concern the current recommendation model such as the information recommended is not inaccurate enough. This paper presents a collaborative filtering algorithm based on K-means algorithm. Firstly, we analyzed the similarity calculation method of collaborative filtering recommendation...

The ship directional stability is an important index in studying ship maneuverability, but there has not been good method to detect the direction stability of ship. This paper attempts to obtain the side force and yawing moment of fixed symmetrical ship model by using RANS method at steady speed. The...

Redundancy design scheme and control strategy of the energy management system for a stratospheric airship are proposed, which use the coordination control between the photovoltaic cell and lithium battery to maintain the DC bus voltage constant, so as to guarantee the stability of the motor load. The...

Elastic and surface properties of Ω phase have been studied by using the first-principles calculations based on density functional theory. The elastic properties results show that Ω structures are more inclined to resist shear deformation than volume deformation, and the precipitation of Ω phase enhances...

In order to better identify the fault type of locomotive running of rolling bearings, through experiment and analysis, the article improves a new method by combining the value of AdB and fault bearing fault characteristic frequency, then through the virtual instrument software to analysis the diagnosis...

The emergency handling Peak Ground Acceleration (PGA) has been used as a measure of braking for High-speed Railway (Shinkansen) during earthquake in Japan, and it necessitates to know the correlation between PGA and other strong motion indices, e.g. un-filtered Peak Ground Acceleration (PGAu), Japan...

Solidified structure and mechanical properties of Mg97Y2Cu1 alloy reinforced by long period ordered structure with 0-0.3%wt Sr addition were investigated. The results indicate that the addition of Sr ranging from 0.1% to 0.2%, solidified structure of the alloy refines and homogenizes gradually. When...

Bourdieu's cultural capital theory is one of the important contents of his sociological theory system. Cultural capital includes three forms, namely specific cultural capital, objectified cultural capital and institutionalized cultural capital. The three forms of capital in contemporary college students'...

Joint encryption and compression method not only ensure the uniformity of the algorithm but also can enhance the security of algorithm, so it have very important practical significance.This paper studies the over complete dictionary of DCT and OMP algorithm,uses the two kinds of common chaos mapping...

Adopting coupling drain bias stresses to probe the device integrity achieved the good consequences in the study of device leakage, interface state, and oxide trap causing some degradation effect in the tested devices and observed the GCIP effect at the higher drain stress conditions.

Many factors that affect the safety behavior of miners, it mainly focus on four major aspects of the accident caused by personal behavior factors, operating environment, equipment and facilities, economic benefits and so on. The principal component analysis method and factor analysis method are used...

Thermodynamic geometry is a special method for the research of black holes. Following that achievements in Hawking radiation of black holes and black hole entropy are obtained and the relationship between black holes and thermodynamics is figured out, more and more people are obsessed with thermodynamic...

Let be a proper edge coloring of a connected graph of order at least 3, where the color set is . If can induce a proper vertex coloring of , then is called a twin edge -coloring of . The minimum number of colors for which has a twin edge coloring is called the twin chromatic index of . In this paper,...

The article is devoted to synthesis of an optimal regulator of the process of recovery of the braking energy of trains using an AC traction electric drive. The optimality criteria, mathematical description of the system of energy recovery, suitable for the maximum principle of L. S. Pontryagin application,...

Aiming at gob-side entry retaining for three typical roof conditions (hard roof, medium stable roof and limestone roof), theoretical analysis, numerical simulation, laboratory test and field test were carried out. Different support mechanical models were built, and various roadside support technologies...

The forming of internal rib has more application in production, to meet the requirements of assembly, cooperate or increase the stiffness, it can be realized through the use of compressed coil or bulging coil tube forming rib forming, within or outside of the rib. It is for ribbed tube forming of schematic...

In this work, FRP panel surface was treated by 12 plasma techniques formed by a pairwise combination of four power consumptions (300W, 400W, 500W, and 600W) and three transmission velocity (2.5m/min, 5.0m/min, and 7.5m/min) respectively, and then adhere to timbers. According to delamination test dates,...

Present a novel method of automatic recognition for analog measuring instruments with region growing. The whole algorithm consists of pointer extraction algorithms based on region growing method and pointer recognition algorithms based on hit-miss transform method or least square method. Besides, the...

Turbulent impinging slot jets at three different angles and four different impingement spaces were analyzed numaberically using the SIMPLE alogrithm and an RNG-based k - epsilon turbulence model to investigate the flow field structure and heat transfer characteristics. Under a certain condition, the...

In this work, hexagonal barium ferrite thin films have been deposited on Al2O3(0001) substrates by pulsed laser deposition. The influence of oxygen pressure on the crystallographic structure and magnetic properties of BaM films has been studied. X-ray diffraction theta-2theta reveals the films have a...

Dielectrophoresis (DEP) force will arise when an inhomogeneous AC electric field with sinusoidal wave form is applied to micro electrodes. The DEP is able to distinguish between viable and non-viable biological cells by their movement through a non-uniform electric field. The viable cells can be used...

In order to explore the blending mechanism of bio-binder and petroleum asphalt, this paper used high shear equipment to mix them, with varying conditions of temperature (130 ~ 145°C, 145 ~ 160°C, 160 ~ 175°C, 175 ~ 190°C), speed (500r, 1000r, 2000r, 3000r) and mixing time (15min, 30min, 45min, 60min)....

The social construction of ritual Nuju Jerami as a form of gratitude for the success of rice harvest in indigenous communities Orang Lom Bangka needs to be questioned.  Some previous research findings suggest that the ritual Nuju Jerami is a period of time for the Lom community to restart a new field for...

The purpose of this study was to calculate farming income of shallot and analyze the factors that influenced it. This study was conducted in Java precisely in Brebes, Nganjuk, and Cirebon Regency because these regions are the centre of shallot production in Indonesia. The respondents were 90 shallot...

At preservation of fruits and berries mass-exchange processes take place in liquid mediums, which define quality of the canned production. The composition of covering syrup should guarantee preservation of turgor, taste and color of fruits and berries and prevent fermentation processes. We carried out...

The research aims to improve performance of high-accuracy hole-making in hybrid stacks. The stacks consist of carbon fiber reinforced plastic and Titanium and Aluminum alloys. Holes were made with Atlas Copco PFD-1500, a pneumatic drilling machine with automatic tool feeding. A MAPAL hard-alloy six-toothed...

For a reheat-regenerative cycle steam turbine, the increased superheat of extraction steam after reheating causes the regenerative effect to weaken. Steam cooler can make rational use of the superheat of the extraction steam to improve the thermal efficiency of steam turbine. Based on the heat balance...

Hydroxyapatite (HAp) is the main material of bone structure which has chemical formula Ca10(PO4)6(OH)2. In this research, HAp synthesis use precursor calcium from crab shells and phosphate from H3PO4. Phosphate addition is done in single drop and wise drop. The calcinations of crab shell were done at...

Travel time, fuel consumption and carbon dioxide emissions are directly related to the vehicle velocity. In this paper, we aim to give a velocity planning system based on intelligent vehicle infrastructure cooperative technology. The system contains two units: road side unit (RSU) and on board unit (OBU)....

By means of 4 groups 10 m single-filled sand pipe models with the same permeability and 5 groups of double-filling sand pipe models with 10 m average 5 permeability difference of 1.00, 1.85, 2.80, 3.65 and 4.29, The optimal alternation ratio of carbon dioxide-steam flooding after steam flooding and the...

Groundwater overdraft in Xi'an City is the main cause of the subsidence since 1959. In recent years, ground fissure has been one of the most serious geological hazards in Xi'an, China. This paper aims to research the application of high-precision 3D terrestrial laser scanning techniques (TLS) in land...

Based on BIM, cloud platform, internet of things and other advanced technology, this study establishes a monitoring cloud platform used in the bridge construction. It solved the key technology application issues such as formulating bridge BIM implementation standards and engineering breakdown structure...

In order to study the various furnace arch structure and air distribution on combustion characteristics of chain boiler, based on computational fluid dynamics theory, using numerical simulation method, a three-dimensional physical model for QXL1.4-0.7/95/70-AII type hot water boiler is established, and...

In order to replace the natural sand with Fiber Engineered Cementitious Composites (PVA-ECC) in desert sand, the PVA-ECC of desert sand was put forward. Four factors, namely, water-cement ratio, fly ash content, PVA fiber content and desert sand substitution, The four-level orthogonal test was used to...

In 2017, there are 113 million motorcycles in Indonesia or 43% of the total population of 264 million. With this amount, of course there are also many motorcycle communities and/ or motorcycle gangs. Many social and psychological studies have been done and found positive aspects of motorcycle communities...

The road is a land transportation infrastructure essential in facilitating the social and economic activities of the community. Well-constructed road conditions will equip population mobility in social activities and relations. However, road damage at low and high levels will not only obstruct social...

Green space as one of the indicators of sustainable city in riverside area is very important to Banjarmasin, the city of thousands river. However, due to the limited space, no other form of urban green space founded in the riverside area of the city other than greeneries. This research aimed to identify...

Under the concept of sustainable development, researching and evaluating the “constructability” of urban land is an important starting point for the harmonious coexistence of artificial and natural environment. Territorial planning provides the basic suitability assessment for a certain land use of the...

Cassava stems contain 56.82% α-cellulose, 21.72% lignin, 21.45% Acid Detergent Fiber (ADF), and a fiber length of 0.05-0.5 cm. One cellulose derivative product that is frequently utilized in the food and pharmaceutical industries is hydroxypropyl methylcellulose (HPMC). This study aims to produce HPMC...

In slope engineering or underground power generation tunnels and other underground projects, the control of engineering seepage is an inevitable problem in water conservancy construction. In order to study the impact of seepage on river gates, a certain river gate was selected as the research object....

Bucket teeth on excavators are essential components used for digging and loading materials. Consequently, the material used must possess high wear resistance, hardness, and toughness. Manganese steel is commonly used for this purpose because of its exceptional wear resistance. This research aims to enhance...

Using the “bottom-up” method and Tapio decoupling model, based on the time-series data of Yunnan Province from 2010 to 2020, the study firstly measures the carbon emissions from tourism transportation in Yunnan Province, and then analyzes the decoupling relationship between tourism transportation and...

Crack is a high-risk engineering disease in civil engineering. It is necessary to master the specific types and causes and strengthen crack control. Pipeline welded joint is one of the most prone to crack position. Pipeline structures are widely used in civil engineering, especially in the field of oil...

Material removal rate (MRR) can indicate how efficiently the lathe machine is cutting the workpiece, and surface roughness can indicate the quality of the machined part. In this study, the material removal rate (MRR) and surface roughness (Ra) of the turning of aluminium alloy were investigated using...

Lung Disease treatment is crucial in the medical industry since it is the third most prevalent cause of mortality worldwide. Recently, assistive solutions have greatly benefited from the use of technologies like deep learning and machine learning. This involves the use of a variety of technologies, including...

Based on the standardization process of logistics efficiency evaluation and combined with the development concept of low-carbon logistics, this paper constructs a scientific and reasonable logistics efficiency evaluation index system and model, aiming at comprehensively and accurately reflecting the...

Membrane bioreactor (MBR) technology has currently been widely researched and used in water treatment field. In order to further expand the application fields and control membrane fouling problem of MBR, powdered activated carbon-membrane bioreactor (PAC-MBR) combined technology has become a study hotspot...

In terms of the performance requirements of Terahertz waveband antenna on Terahertz devices, the present paper originally combines Cantor fractal structure, photonic crystal structure and Terahertz waveband wave-transmitting ceramic substrate, designing a Terahertz waveband antenna based on fractal photonic...

Trust is an vital factor affecting online transaction. This paper presents an evaluation model of transaction trust based on transaction history information including past transaction amounts, transaction dates and rates of favorable comments, which can widen the applicability of the trust evaluation...

Since MTBF has several drawbacks, maintenance free operating period (MFOP) is proposed for it is better, cheaper and faster. The paper analyses the basic concept of MFOP, the basic ideas to achieve MFOP, the advantages and benefits that MFOP brings about, the disadvantages and risks that MFOP faces.

Objective: Study the effects of the application of remote medical system in the severe trauma pre-hospital first aid. Methods: Select Inner Mongolia national university affiliated hospital using remote medical system to rescue 43 emergency patients with new brain stroke patients in June 2014 - September...

This paper mainly focuses on providing a plan for using Wolbachia to influence the mosquito population with Zika Virus. In our SEIR Model we first obtain and solve a series of differential equations to predict the tread of Zika spreading, based on this model, we bulid a Wolbachia Spread In Mosquitoes...

Abstract. Objective: To study the protection role of the quercetin on the ischemia-reperfusion injury liver rat. Methods: The gastric gavage quercetin and as a positive control of vitamin C, 30 m in the liver door open after ligation of vascular cause liver ischemia-reperfusion injury, respectively,...

Referred to in the fault diagnosis of power grid mainly refers to the transmission network and transmission network bears an important task of power transmission, power plant and terminal user ties, is one of the most important parts of the power system. Long term exposure to natural environment in the...

The present study investigates the role of 24-epibrassinolide (EBL) in inducing plant tolerance to salinity. Seedlings of watermelon (Citrullus lanatus L.) were grown in the presence of 70 mM NaCl and were sprayed with 10-6 M EBL at 7 days after transplantation and were sampled at 28 day. The plants...

With the wide application of concrete materials, the problem of concrete property degradation caused by external environment condition has drawn the attention of civil engineers. In order to study the influence of environmental factors on the durability of normal strength concrete (NSC), three groups...

Traditional inspection robots which equipped with analog camera normally have two channels to transmit image information and control signal. However, this double-channel method causes difficulties in miniaturization of robots. In this paper, we proposed a new scheme in which WIFI technology is utilized...

Realizing coordinates transformation between WGS-84 datum and local datum is the key problems of GPS surveying .It is difficult to obtain the precise geodetic height in the national or local coordinate system which affects the accuracy of 7 parameter models .This paper puts forward a way of transformation...

According to the traditional beef cattle feeding way of simple equipment, low labor efficiency, high production cost, a beef cattle automatic feeding system is designed based on motion controller. This system uses form of upper computer and lower computer, PC is for the overall planning and programming,...

With the rapid development of information technology characterized computer and network, digital media products have become the main stream of the times, interaction technology gets ubiquitous in people's life. How to create better user experience in the use of digital media products is a hot issue....

This dissertation makes a study of joints of crisscross section column composed of core concrete-filled steel tube and steel beam. The study is mainly focused on the Seismic Behavior of joints. Four models are designed by using finite element structural analysis software abaqus, which are joints with...

We, firstly, collect the energy consumption (EC) of Shanghai and compute its co2 emission (CE). Then, we use three kinds’ indexes (urban size, traffic infrastructure, and compactness) to analyze the relationship between city’s form and its CE based on the Partial Least Squares (PLS) and the Hierarchical...

The slope stability problems of combined open-pit with underground mining is such a key technology and the core problem of mining safety production. This paper apply the numerical simulation analysis on engineering project, and using Midas, FLAC3D and other software analysis the slope stability, slip...

With the rapid development of global economy, it emerges increasing consumption of human society, fossil energy and other non-renewable energy will become increasingly depleted. While accelerating the development of new energy sources, attaches great importance to energy conservation has become the consensus...

Thermal spraying technology is one of the most efficient methods to surface modifying in the field of surface engineering, meanwhile, the application of spaying operation on the workpieces conducted by industrial robot enjoys increasingly popularity. Based on the analysis of thermal spraying components...

According to the problem that the original tester is big, heavy and expensive, using a virtual operation interface instead of actual operation panel and substituting a simple RS232 to USB converter for a big circuit box, make the tester be more portable and convenient operation. After practical application,...

The wind power generation capacity of Ganshu grid has exceeded water power and rank the second energy.For the grid, the burden of stable and safe operation caused by wind power increases consequently. Through the testing and transforming the ability of low voltage ride-through for wind turbine, and regulate...

The necessary for integrated systems development comes from complexity of the system. The cross-linking among the sub-systems of the aircraft attributes to the difficulty of recording and indicating system design, especially alerting system. This paper presents a practical simulation design solution...

The article assesses the individual geodynamic situations of the Wilson cycle. These situations formed one or another existing structural-material complex of the main microplates and structural-tectonic zones of the eastern segment of the Central Caucasus. The assessment was carried out on the basis...

The depth of coal seam buried in Yushenfu mining area is shallow, and there is inevitable contradiction between the mining activities of high strength coal seam and the protection of aquifers. Therefore, it is very important to study aquifer's response law to coal seam mining for scientific mining of...

Education informatization is the ultimate goal of educational development. As the most important element of education system, good management of class is the guarantee of high teaching level and quality. The application of information technology in the course of class management, is combining the management...

Congestion has become a problem of traffic on urban road segments in several major cities in Indonesia, it will have a negative impact on the driver or users of the road due to the longer travel time. Congestion resulting in economic and immaterial losses such as cause stress due to fatigue, and congestion...

The given paper is focused on methods, resources and aims of environmental pollution monitoring of the Chechen republic. It has been revealed that the existing monitoring system does not meet the modern requirements to transfer operational information to the forecasting centers with the aim to be processed...

Rock burst hazards during deep mining are a dynamic phenomenon of the sudden release of elastic energy aggregated in the roof rock-coal combined body. In this paper, the occurrence mechanism of rock burst for roof rock-coal combined body was studied through energy dissipation theory. And the elastic...

This research intended to determine the performance of the bus stop and things that need to be improved. While, there are 3 aims of this research, namely: 1) To understand the performance of the existing Bus Stop, 2) To understand the factors that are considered important and their conditions by analyzing...

with the development of science and technology, computer technology has made great progress in various fields; it has been very widely used. In the selection of talents, our country has been using the traditional test system, such as the examination and entrance examination, etc. And the traditional...

This paper analyzes the problems in the process network configuration of smart substation. A method for automatic configuration of process layer network in smart substation based on SDN is proposed. First, establish a physical port model that defines the configuration information for the process layer...

It applies hydrodynamic Model MIKE21 HD to complete simulation the characteristics of Bohai Bay,and the tidal level and current are verified with observed data in Huanghua Sea area. In this study, A oil spill model in channel of huanghua harbour was established based on the tidal current field, and keep...

The problem of forest conversion causes a diversity of forest resources, landscape forms and hills had changed and decrease. one effort to conserve forest resources can be done by integrating the local wisdom to manage the forest. The study aims to determine the local wisdom of the community in protecting...

The blind signal separation based on eigenvalue decomposition, and under the number of unknown sources, when the dimensionality of signal space is determined to be wrong, it will result in larger separation error. This paper uses the directional information of the array structure to build the blind signal...

Concentration process of cucumber juice is an essential step in cucumber extracts and juice production in the industry in order to minimise the volume and weight for storage and handling purposes besides to keep the quality of the products. Enriching total phenolic content (TPC) in cucumber juice that...

Solar drying is a sustainable and eco-friendly method that generates no greenhouse gas emissions or air pollutants. It contributes to reducing the carbon footprint of the drying process. By using solar power as the main energy source, the prototype solar dryer can help reduce electricity costs and reduce...