Advances in Engineering Research

In order to analyze the 170SD30-SY motorized spindle bearing cooling effect of the oil-gas lubrication system, a fluid - solid coupling heat transfer model established in finite element software. It is realized by way of numerical simulations on the ground of theoretical analysis. By changing the compressed...

Using ICP-MS to detect Pb in the multi-phase mediumin the artificial reef .The results showed that: Pb of sediment is varied from0.138~0.470mg/Kg, mean0.273±0.106mg/Kg,The sediment distribution of Pb decreased in the order: lower> middle> upper layer in each station. Risk evaluation showed that potential...

Apparently, management of portfolio is focused on developing optimal and superior investment plan for investor. Furthermore, managing the fund allocation of investor on different alternatives facilitates minimising the risk in comparison to fund investment within a single investment fund. Concerning...

Considering the monitoring information of the operation process of the machine tools, a maintenance decision model is established in this paper. Firstly, the monitoring information of the key parts of the machine tools is obtained by using data acquisition system. Based on the kurtosis value which are...

The important problem of the research on the technology of fertilization is how to improve the utilization rate of fertilizer, and the variable rate fertilizer applicator will be the future development direction. This paper studies how to use SD card to store the data of variable rate fertilization applicator...

To optimize the coalbed methane (CBM) horizontal well types in the southern Qinshui Basin, the optimization system of horizontal well types accompanied with corresponding engineering technology modes was established basing on the well type geology adaptability and key factors influencing the horizontal...

With the application of GIS, the mobile positioning and wireless communications technology, the location-based services (LBS) are increasingly widespread. Location-based services are a kind of value-added services. Mainly through GPS and WIFI mobile location technology, it can get the user's current...

In recent years, numerous studies confirm that platelet-derived growth factor-BB (PDGF-BB) is involved in the development of atherosclerosis and the regulation of human aorta VSMC (HA-VSMC) proliferation. Myocardin is an essential transcription factor that can activate the tran-scription of some smooth...

By taking real domestic CRH high-speed trains as research object, using the Computational Fluid Dynamics software Starccm+ to carry out numerical simulation calculations when the train runs in different vehicle speeds and cross-wind speeds, We get aerodynamic loads in diverse working conditions. Furthermore,...

This paper presents the experimental results of investigation of the effects of fly ash and water content on damping of concrete. Impulse Excitation Technique has been used to measure damping of concrete at the ages of 3, 7, 14, 28 and 56 days. It was found that the more fly ash is added the higher damping...

One new luminescent materials of complex C29H28N2O6Zn (1) was synthesized by evaporation methods using (4-hydroxyphenyl)acetate(4-HOBA), 4,4'-trimethylenendipyridine(TDP) and Zn(NO3)2. And the complex was characterized by elemental analysis, FT-IR, thermogravimetrie analysis(TGA), XRD, X-ray single-crystal...

Bottom water coning is the main problem in the development of bottom water reservoirs and barrier layer in these reservoirs can control bottom water coning in some degree, so the research of the effect of barrier layer in bottom water reservoirs is carried out. This paper, in streamline simulation method,...

The porcelainous PTC heater is used in electric locomotive cab to improve thermal comfort. In this paper, experiments were taken to test the heat transfer performance of the porcelainous PTC heater in the aspects of heat propagation distance and the interference between air inlets and outlets. The structure...

Under strategies of sustainable development, it is worth analyzing the matter of energy efficiency, therefore, how to improve the energy efficiency of enterprises has a very important significance. In order to effectively evaluate and analyze the economic efficiency of Chinese coal enterprises, this...

A three-dimensional finite element steel bridge and its deck pavement were established by ANSYS software to simulate the influence of different model and bonding failure between adjacent layers on stress values of asphalt concrete deck pavement. The stress values of asphalt concrete deck pavement were...

According to the basic working principle and the structure analysis of the phase-locked loop, the simulation and analysis of the loop stability with the change of the main loop parameters have been finished according to the established third order dynamic model on the Simulink of the MATLAB, a fast transient...

Unmanned vertical take-off and landing aircraft (VTOL UAV) will become an important maritime supervision platform in the future. The aim of this research was to give out basic requirements of using VTOL UAV in the field of maritime management. We studied duties of China's Maritime Safety Administration...

Pollutant removal was researched in this paper, by using the improved constructed rapid infiltration system which was added sponge iron and special media of corn cob, and by taking wastewater of student life in campus as an object of study. Test results show that: after adding additional carbon corncob,...

This study elaborated the process management and quality control of three typical major isolation retrofit projects in the construction stage of base seismic isolation by migrating the building load entrusted by the temporary pile to seismic isolation devices. About the process management, support ground...

With the increase of demand for energy, energy recycling is becoming a hot spot in recent studies.The problem of motor feedback braking energy feedback system in energy fluctuation was proposed,the system is based on the combination of the super capacitor energy storage.the super capacitor can feed common...

In order to improve the reliability of power system, on-line monitoring and fault diagnosis for electrical equipment is very necessary. In this paper, we research on-line monitoring and fault diagnosis of transformer, building the gas online monitoring system in transformer oil, and improved transformer...

For the past few years, selenium has permeated various fields in the life science with its strong vitality, and this fields expanded rapidly. In this paper, research progress on macromolecular bioselenium, especially on selenoproteins, selenium-nucleic acids and the selenium polysaccharides were summarized....

Due to the randomness and volatility of wind power, the problems of voltage fluctuation, harmonic and so on will have a serious impact on the power quality of power grid. (Which produces a voltage fluctuations, harmonics and other power quality problems will severely affected power grid.) The wind turbine...

According to the self-organizing characteristic of rock mechanics system during evolution, synergetics was applied to investigate the evolution process by taking dynamic disturbance into account, and a generalized dynamical equation was established. Based on analysis of phase transition theory and damage...

With higher education structural reform deeply, the socialization of logistic guarantee and the Market-oriented of economic behaviors, the finance services of universities are faced with unprecedented challenges. Along with the development of accounting reform, the related theories become richer, the...

An efficiency optimization method of permanent magnet synchronous machine for electric vehicles applications is researched. Considering iron loss equivalent resistance and direct torque control scheme, the relationship of stator flux and power loss is derived based on loss model. And then the real-time...

Aims at the characteristics of the chemical agents signals, the pattern recognition method based on the wavelet neural network(WNN) is put forward. Firstly, the model design thought of the WNN pattern recognition technology for chemical agents are analyzed, which shows that the wavelet analysis has good...

In order to accurately predict the dynamic gushing process of gas in fully mechanized mining face, based on the historical monitoring data of underground gas concentration, with the help of R language, the ARIMA model is first established and fitted to determine the prediction equation of the ARIMA (p,...

Oral tradition is one of the local wisdoms which is very susceptible to disappear from civilization. This research is a form of tracing and organizing several oral traditions which are still recorded in Tuatunu Village community. Furthermore, this research is also connected with the historical facts...

Focusing on the problem of serial cell imbalance in lithium-ion batteries applied in electric vehicles (EVs), this paper presents an active battery balancing method based on state-of-charge (SOC). The basic principle of the proposed balancing method is aligning battery cell SOCs to 50% and making sure...

In the process of power system operation, three-phase unbalance has become normal. Based on the limitation of the filter rules on the three-phase unbalance, this article builds the discriminate model of it, firstly, eliminate abnormal data and restore the missing data through analyzing the real data...

In this study, the design of benzothiopyrano pyrimidine derivatives as an anticancer was carried out using the Quantitative Structure-Activity Relationship (QSAR) method. The method used for calculation of the properties was semiempirical Austin Model 1 (AM1), and the activity data (GI50) was obtained...

The given article considers the necessity of implementation of new systems of technical diagnostics for a long-term exploitation of civil and industrial facilities under special climatic conditions. Currently, more than 80% of civil and industrial facilities in southern Russia have worked out their rated...

Research with the title of the use of silica chitosan with glutaraldehyde crosslinking agents as a matrix in the making of slow release urea fertilizer has been done. The purpose of this research was to determine the physical and chemical properties of slow release fertilizer coated with chitosan-silica...

This paper aims to simulate two stretching methods adopted in plantar fasciitis treatment in MSC.ADAMS, Achilles tendon stretch and plantar fascia stretch. Clinical evidence has been accumulated that stretching is effective in relieving heel pain caused by plantar fasciitis. While plantar fascia stretching...

The operation of container trucks at Tanjung Priok Port, which includes the movement pattern and empty trip has the potential to congestion at the port. Data analysis was conducted with the population of the terminal operating system (TOS) in Koja Container Terminal (TPK Koja), as much as 1,115,344 row...

The internal forces at the end of pier, anti-push stiffness at the pier top, and seismic forces distribution law of one-way slope bridge with high and low pier, continuous beam and ordinary laminated rubber or lead-rubber bearing in mountains were analyzed by inputting EL-centro earthquake wave into...

The SWOT (Strengths-Weaknesses-Opportunities and Threats) was very classic qualitative analysis methods in all fields; And the AHP (analytic hierarchy process) was quite practical in quantitative analysis. Through cooperating SWOT analysis and AHP (analytic hierarchy process), a complete qualitative...

Over the last decade, Cloud computing is the most effective technology in the field of computing. The vast development in cloud has several reasons like, on-demand service, elasticity, flexibility of workspace, etc. It also reduces the capital investment for small scale companies by allowing the users...

A human health is the basis of his life and a key factor determining the success in all spheres of human activities. Its level identifies the range of realization of the psychophysical potential of young people, which depends on the economic well-being and prosperity of the state, which are priorities...

in the 21st century, the need for effectiveness and flexibility in any activity is a necessity that must be fulfilled so that people can compete well. One of the examples is sports. The need, especially in sports, is marked by the growth of interest in sports in developed or developing countries. Besides,...

The purpose of this study is to provide an analysis of the effect of curriculum development on air transportation management competencies by contributing to cadets at Surabaya Aviation Polytechnic. The design of this study uses quantitative research methods that emphasize numerical data analysis such...

In regard to the existing COVID-19 pandemic, adequate personal protective equipment (PPE) is required, one of which is a hazmat suit. This study aimed to produce a validated hazmat suit for medical personnel. This research and development (R&D) used Thiagarajan’s theory consisting of four stages...

Traditional association rule mining algorithm only generates a set of rules from frequent itemset, the rules obtained cannot generate rules from high-utility itemset. This is because the framework that’s being used to obtain rules from traditional association rule is support-confidence while getting...

Due to the increased demand for various essentials of human life, natural resources for road pavement are becoming more and more scarce, necessitating the use of alternative materials. In this study, a rejected asphalt mixture serves as the foundation for an asphalt mixture to which emulsified asphalt...

The purpose of this study is to identify what stakeholders need to prepare to improve the skills of construction workers in Palu City. The theoretical basis of this study is the Performance Prism Method, which includes satisfaction, contribution, strategy, process, and capability of each stakeholder....

Nowadays, the utilization of phosphogypsum (PG) as source is a hotspot along the world. This experiment investigated the impact of varying amounts of steel slag (SS) on the initial performance of PG modified with steel slag. The mechanical property and hydrated mechanism of PG-based cementitious material...

This study presents the first systematic investigation into the recovery of antioxidant lignins from pharmaceutical residues of seven Guangxi medicinal-food plants (Cinnamomum cassia, Star anise, Curcuma zedoaria, Millettia pavonica, Abutilon theophrasti, Zanthoxylum nitidum, and Amomum villosum) using...

The verification of grid and time step independence is crucial for ensuring computational accuracy in CFD simulations. This study investigates vortex-induced vibration (VIV) phenomena in a streamlined box girder bridge, systematically examining the effects of temporal resolution and mesh refinement on...

The research of natural fibers in various engineering fields is currently developing, because of its availability, easy to process according to its designation, low-cost, good mechanical and physical properties and is friendly to the environment. The use of bamboo (bamboo strip reinforced/BSR) material...

The article proposes a modern method of fault location for 6 kV networks according to empirical criteria for different types of emergency modes. When developing the criteria, the modules of phase voltages and currents at the beginning of the line, at the end of the line, and both at the beginning and...

In Mongolia, the system to connect market chains among livestock products- national producers-global market, has been poorly developed in terms of accessibility and equity. To address this issue fully, it is critical to assess compliance of herder cooperatives and livestock productions with social and...

This research aims to analyze the effect of a difference method of extending edge based on the mean value theorem and the minimax principle and its applications. In this research, the theoretical model of the potential field was designed, and then the theoretical data was calculated. Besides, the data...

Aiming at the problems of short transmission distance, low multipath effect and low positioning accuracy in the common tunnel personnel positioning technology, proposed a new system of personnel positioning system for subway tunnels based on the Impulse UWB (Impulse Radio-Ultra Wideband, IR-UWB). According...

In this work, the organic optoelectronic devices with both photovoltaic and detection performance were fabricated based on a blend of the polymer poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)- benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl)benzo [1',2'-c:4',5'-c']dithiophene-4,8-dione))]...

Lhasa is located in the middle of the Tibetan plateau, north of the Himalayas, its climatic characteristics and the form of residents are representative of the Tibetan Plateau. In order to master the indoor thermal environment of rural highland in Tibet, this paper tests the indoor and outdoor thermal...

In recent years, with the development of fisheries, the aquaculture industry has developed rapidly and has become an important part of our country economy. At the same time more and more aquatic products is being used by people while the abuse of antibiotics is growing uncontrolled. This paper summarizes...

As the road traffic system is an uncertain system, the occurrence of traffic accidents is also an uncertain system with partial information known and the other unknown. Therefore, it’s suitable to apply the gray model theory to predict the traffic accidents. This paper expounds the principles of gray...

In this study, the three-dimensional stress distributions in the area surrounding indentation pattern for three different materials, Al2O3, Si3N4 and SiC were analyzed by FEM. Those theoretical results were also compared with the experimental ones by Rockwell hardness test. The effect of loading stress...

Massive sky survey data are produced by the LAMOST large-scale survey project. However, the low quality spectra still accounted for about half of total LAMOST observed data at present. For these low quality spectra, spectral classification can not only use of computer technology, but also be combined...

A reusable framework of pulsed Doppler radar seeker (PDRS) is established for coherent video signal simulation, which provides an efficient tool to its design and evaluation. General PDRS configurations are described with emphasis on performance limitations. The discussions on the key parts of PDRS are...

Step counting function can be implemented according to the acceleration data collected by appropriate algorithm. Based on the features analysis of intelligent mobile phone sensor, the paper describes the design principle of the algorithm of counting steps, and gives the implementation methods of data...

This paper studies the user response characteristic to the time of use price, and establishes the user load response characteristic curve to the time of use price on the basis of consumer psychology. Based on the optimal operation model, the paper analyses the effect of demand side. The paper establishes...

For the emerging domestic Information Security Specialty (ISS), we can draw of little successful experience directly on professional practice in this field, not to mention referring directly. In order to improve the professional practice quality of ISS students, measures are carried out as follows. First,...

Rational optimization of the energy storage system can be configured to stabilize power fluctuations of wind and solar power generation systems. The use of batteries and complementary nature of ultra-capacitors, combined with real-time scheduling grid we proposed a method to improve the overall economics...

Most of the original three wire factory settlements have been or are evolved into the city's old "open community" accumulated a lot of problems of governance. Three wire plant communities each has its own characteristics because of its location, the unit characteristics and its changes. The renewal way...

Solid oxide fuel cells can directly convert chemical energy of fuel into electricity, not limited by Carnot cycle, can greatly improve efficiency. GT-Kalina combined cycle system driven by SOFC can realize the cascade utilization of the exhaust heat, by this way to improve system efficiency. This paper...

Material Management is refers to the enterprises to manage the behavior of procurement, use and storage of the necessary materials. It is an important part of the normal production and operation of enterprises, and affects the economic benefits of enterprises directly. At present, most of the material...

Objective: the aim of the present study was to determine the effects of ginsenosides-Rb1 (GRb1) on immune function of rats during strenuous physical exercise. Methods: The rats were randomly divided into four groups: one control group and three different doses of GRb1 (25, 50 and 100 mg/kg) treated groups....

Rectifier electric locomotives create essential harmonic distortions in tractive electric power supply systems. Because of the higher harmonics, overloads on capacitor banks are possible. Capacitors are a basic element of reactive power sources applied in power supply systems. In case of harmonic increased...

The article presents the data on productive and reproductive qualities of cows of Holstein breed depending on genetic factors. The cows of the line by R. Sovering were characterized by higher productive qualities during their first and third lactation. Cows of all three lines are characterized by the...

Streambed vertical hydraulic conductivity (Kv) plays an important role in understanding the water exchange and contaminant transport system between river streams and groundwater flows. The tests were conducted at 464 test points of 10 test sites to measure the vertical hydraulic conductivity (Kv) for...

Technology has a heavy impact on teaching learning process. Speaking mastery can be integrated by investing in technology enhanced learning. There are various technology implicated in teaching speaking, one of them by using video. The application of video in teaching speaking presents interesting and...

Two 350MW Boilers is operating in Tianjin Junliangcheng Generation Co. Ltd. Limestone - gypsum wet FGD with two towers is adopted.Some optimization of pH and density,slurry and process water are made: the PH and densimeter are placed at the outlet of the recycled pump tube, it could make the discharged...

Thermal characteristics of lithium ion batteries are particularly important for both the optimization of the battery cells and design of the thermal management system for battery packs. The Si-C composite applied in lithium ion battery could improve the battery's energy density. For a 3 Ah pouch lithium...

Shallots especially Topo shallot cultivar was one of the strategic horticulture commodities which had high economical valued for farmer in North Molluca. Cultivation of shallot is mostly contrained bt basal rot disease caused by fungus Fusarium spp. complex. The aim of study is to determine Topo shallots...

The intelligent water and fertilizer integration device integrates the environmental monitoring system and the intelligent water and fertilizer integration system, which is composed of three parts. Wireless sensor network is composed of multiple sensor nodes of wireless network, wireless sensor network...

Bacillus cereus V9 is a mannanolytic bacteria capable of producing a mannanase enzyme of 29.5 IU / mL with a substrate of Locust bean gun. The use of Locust bean gum as a substrate in the production of the enzyme mannanase is not recommended because it is expensive so that the enzyme produced will be...

The increasing carbon footprints are forcing international regulators to reform fossil fuels into alternative fuels. Maritime transportation contributes 2.89% of carbon to the earth. One of the solutions to push this emission (decarbonization) is creating alternative fossil-free energy. The most possible...

Nanocomposites of TiO2-reduced Graphene Oxide were synthesized with graphene oxide (GO) loadings of 4, 8, 12, and 16 mg via in situ sol-gel method. The raw material of graphene oxide was coconut shell charcoal which was processed using a modified Hummer’s method by dissolving the graphite into the acid...

Transitioning the use of fossil fuels to biofuels such as biodiesel is one solution for the country to ensure energy security, environmental quality, security and poverty alleviation. Indonesia is one of the countries that is trying to implement the use of biodiesel with the support of adequate natural...

Aerodynamic optimization of airfoils is fundamental for aircraft performance, with NACA2412 and NACA0012 serving as benchmark prog actionable insights for airfoil design under variable operational environments. Files for commercial wings and helicopter rotors respectively due to their contrasting pressure...

According to the risk characteristics of the P2P network lending platform, the paper summarizes the influencing factors of the perceived risk comprehensively. It extracts the appropriate P2P network lending platform for the perceived risk dimensions. Material capital variables have a direct impact on...

The paper presents a brief overview of the existing solutions for connecting the rigid joints with the steel frame columns in multi-storied buildings, the advantages, and disadvantages of the existing designs of rigid connection are analyzed; on the basis of the analysis performed a new structural design...

In the research of aircraft anti-skid braking system, this paper proposes a control algorithm based on GA – BP. Aiming at the nonlinearity, time variation and uncertainty of aircraft anti-skid braking system, this paper takes the relative slip ratio as the objective function. Under the condition of the...

OBJECTIVE: The present review is an attempt to update our knowledge about the phytochemistry and diverse pharmacological effects of the three types of Fagopyrum Mill against various pathological targets including cancer, high cholesterol, cardiovascular, inflammation, pain, diabetes and etc, and then...

From XPS and EPS of building external thermal insulation system on the advantages and disadvantages of using, EPS more in line with market demand, EPS has good weather resistance and temperature change of dimensional stability, is the most extensive domestic and international building exterior wall thermal...

This paper mainly focuses on providing a plan for recycling water in Billings. We divide urban water consumption into living water consumption, industrial water consumption and public water consumption. Using interpolation curve fitting, we separately predict the water consumption in these aspects above....

In this paper, in order to meet the management and business requirements of project management in the engineering company, the project accounting system is developed. While designing the system, we absorb the advantages of the rules for the preparation of accounting subject divide the project accounting...

Through the study of the Camera Link interface protocol, the Ethernet protocol, and the VGA display sequence, the writer designs a high-speed image acquisition and network transmission system based on FPGA (Field-Programmable Gate Array) CMOS (Complementary Metal Oxide Semiconductor) and details the...

In the development of the Chinese five thousand years of history, we created a rich and varied cultural heritage of traditional sports, these sports are the essence of our national cultural heritage of traditional culture and it has a unique sporting and cultural characteristics. This study adopted literature,...

Application of cloud platform technology in college computer experiment teaching to integrate the teaching resources, can help achieve unified storage and management of data relating to computer experiment teaching in colleges, so as to provide a good platform for teachers and students in the teaching...

Based on unsteady Navier-Stokes equations, dynamic response in vertical gust flow perturbation is investigated for the aircraft. The grid velocity method was introduced to simulate the gust influence in time domain. First, after applying this method to simulate typical NACA0006 airfoil gust response...

In order to grasp the main factors of the inventory cost of an engineering project supply chain ,the causal relationship diagrams and system dynamics model of the inventory management of an engineering project supply chain are built according to the actual construction .Then using system dynamics simulation...

The danger to public health and safety caused by the timely sterilization failure of harmful bacteria on the seat of the city bus due to frequent movement of the passengers is explored in this paper. According to different types and different materials of the passenger seats, combined with the advantages...

In this paper, a method based on Ziegler Nichols - frequency response of the vehicle servo system adaptive PID controller is proposed. The control circuit online identify important critical frequency response characteristics of process object through input and output data in the normal process operation,...

At present the level of development of telecommunication technologies gives new opportunities for organization of distributed calculations, based on a set of space-distributed computational resources, with the help of a service-oriented infrastructure, which provides “calculations on demand”. Owing to...

Building a ubiquitous power Internet of Things is a key measure to achieve “three-type and two-network”. After long-term development, energy storage devices have become an indispensable part of the power grid. The number of electric vehicles in the country is strongly supported, and the number of uses...

In acoustic signal recognition problem, different analysis methods can extract different characteristics for the same goal. Good feature fusion methods can take advantage of different traits of each feature, complement each other ,remove redundancy, get more robust new features, and improve algorithm...

Although wavefront parallel processing (WPP) proposed in the HEVC standard and various inter frame WPP algorithms can achieved comparatively high parallelism, their scalability for its parallelism is still very limited due to various dependencies introduced in spatial and temporal prediction in HEVC....