Advances in Engineering Research

According to multi-branch structure of high voltage power network in coal mine, a new method based on singular value decomposition (SVD) was proposed. The characteristics of reflection and refraction of the traveling wave generated by the fault point were studied and the values measured by devices at...

The service life of the LED was much shorter than expected in theory. Its reliability needs to be improved. In this paper, the reliability of the blue GaN-based LED was studied by the current aging method. The light output of LED with different aging time was tested. The results showed that the light...

Fuel cell based vehicles, when compared to conventional vehicles, are relatively more efficient in terms of energy conversion and do not pose any threat to climate due to no emissions of hazardous gases. An implementation of speed control of electric vehicle is proposed in this paper.

The calcium aluminosilicate slag cement clinker was prepared from bauxite-coal composite pellets by high temperature reduction and smelting process. The hydration results show that, after hydration for 28 days, the hydration products of calcium aluminosilicate slag are mainly composed of killalaite (Ca3.2(H0.6Si2O7)(OH)),...

For the purpose of improving the efficiency of traffic signal control with cycle perturbation for single intersections, a robust multi-objective optimization and decision method (RMODM) is proposed. Firstly, this paper presents a non-dominated sorting genetic algorithm II based on the degree of robustness...

In recent years, the contradiction between China's new energy consumption has become increasingly prominent. When the installed capacity is increasing year by year, the abandonment rate of abandoned the wind and abandoned light is high, and how to promote the new energy consumption through market means...

Volumetric estimates provide a valuable check on the estimates derived from material balance and decline analysis methods. Xinli-Xinbei oilfield, Jilin Province-China is an ascertained and developed oilfield. It is affluent in geological reserves, and has greatly development potentiality. Based on the...

Copper indium element is penetrated into the surface of 304 stainless steel by double glow plasma alloying technology. The microstructure of the sample was analysed by means of SEM and EDS. The friction performance test of the samples is carried out with the wear testing machine, and the relevant parameters...

Liquefaction of low rank coal such as long flame coal by microorganisms is one of the most potential ways in coal clean utilization. To promote industrialized application, this paper focuses on structure of liquefaction product by infrared spectrometer. After that, software Peakfit v4.12 was used to...

This paper proposed an improved Stud Genetic Algorithm using the Opposition-based strategy (SGAO) to improve the performance of the traditional SGA and accelerate its convergence speed. In SGAO, we use opposition-based approach to initialize the population and to perform mutation with the aim to improve...

The design and implementation of single-arm robots are crucial offshoots of modern industry. It is of great significance that the device mentioned above could replace people to complete a great deal of complicated and dangerous industrial operations. Instead of the analysis and the introduction of the...

The CAN bus module used in passenger cars has the potential problems of short service life, maloperation and control inaccuracy, etc. In order to improve the reliability and operational stability of the module, the following issues are investigated: (1) Using PWM output to improve the service life of...

The natural frequencies of vibration and the corresponding mode shapes of a suspension bridge with varying bending stiffness of cables are determined, and the changes that occur in these characteristics with respect to parametric changes in the bridge are examined. Single span L=64,0 m suspension steel...

The ecological garden is the inheritance and development of traditional garden experience; follow the principle of ecology, the construction of multi-level and multiple structures, multi-function plant community of science. To establish new order of the associated humans, animals, plants and ecological...

Based on measured data of velocities of several points along the vertical direction in the center of rotating cylinders using Acoustic Doppler Velocimeter (ADV), we analyzed some turbulent characteristics of flow, such as time-averaged velocity, turbulent intensity, and Reynolds stress. In addition,...

Relief distribution is one of the key steps for emergency response after a major public emergency. Relief commodities requirements of demand node are presented intervals based on robust optimization. The facilities failure risk is processed by stochastic programming. The model of emergency location-routing...

Treatment of vnutrennih cylindrical surface plastic deformation is widely used in industry for the production of a large range of engineering products. In the processing method of burnishing of internal cylindrical surfaces of the steel bushings on the lathe-cutting machine with heating revealed that...

Advanced mathematics is a required course in colleges and universities of China. It represents the basis for all natural sciences. Advanced mathematics is strongly abstract and has a very complex logicality. As such, some students in colleges and universities at present feel bored and even hate to study...

To observe the Forsen source herbal tea of reserpine in mice model of spleen deficiency of gastrointestinal effects. Mice were injected with reserpine injection to each mice by 0.1mg / kg in 17 days with continuous subcutaneous injection molding, mice dranking water solution respectively at the same...

Zma1158 protein, consisted of 386 amino acids, was analyzed by bioinformatics tools. The result showed that Zma1158 was a typical NAC transcription factor in maize, and it may involve into abiotic stress response for the stress related cis-elements that detected in the promoter region of Zma1158.

The Electric Car Era is coming. According to the battery charge of car,the optimizal control Strategy applied to DC-DC converters of electric vehicles, it is to gain futher loss reduction and improve the life of an electric car battery. The hybrid energy storage system adopts the combination of current...

Nowadays, the expanded perlite as the cryogenic insulation material is widely used in LNG storage tank. And the settlement of expanded perlite will affect the safe operation of the cryogenic system. On the basis of the large cryogenic LNG storage tank, a settlement monitoring method based on distributed...

In this study, the adsorption behavior of fluoride has been investigated using the biomass derived activated hydrochar (AHC) prepared by a two-stage carbonization process. The adsorption process was spontaneous and exothermic in nature. The adsorption equilibrium data fitted to Langmuir isotherm. The...

In this study, coir fibers were surface treated with alkali and microwave treatments. The effect of alkali and microwave treatments of coir fibers as reinforcement of coir fiber/polyester composite on water absorption and mechanical properties (tensile, flexural and impact strength) was reported. Treatments...

This paper proposes a photovoltaic-grid complementary electric vehicle charging system based on whale optimization algorithm, including control part, traditional electric energy and photovoltaic energy supply part and electric vehicle charging equipment part. The electric vehicle is charged by the complementary...

With the development of communications equipment network and computer science, new generation of mobile end-user has higher requirements for the functionality and performance of mobile devices. Because Android intelligent platform occupies the first place in market share with its inherent advantages,...

The development of public transport in developing countries is inversely compared to the developed countries. The problem of low quality of service, lack of information, accidents, comfort, and pollution is a threat to the sustainability of public transport. Management of semi-paratransit transport individually,...

Remotely-piloted aerial vehicle can significantly increase the effectiveness of monitoring the condition and compliance with regulations for using the water protection zones of large water bodies. These vehicles collected the information for examining the water protection zone of the Tsimlyansk Reservoir...

The main task of an agricultural enterprise is the production of a certain quantity of products. Any production activity is associated with energy spending. And before any production there is a question - what amount of energy will be required at the existing level of technology for obtaining this product,...

The method of drilling bits is a common method to predict the rockburst. This method establishes a quantitative relationship between the drilling cutting quantity and the stress in coal body. But in the process of mining, the common early warning indicator often has some disadvantages such as limitation...

In order to study the efficient water-saving drip irrigation system of pear-jujube in the loess hilly region of northern Shaanxi, the eight-year-old pear-jujube tree was used as the research object to study the soil water distribution and pear water content of different dates of drip irrigation (100,...

The Sequencing dynamic membrane bioreactor—SDMBR was proposed and adopted in this study to treat the high ammonia-nitrogen wastewater according to the features of its wide sources, large emission, high difficulty to be treated and easily lead to serious eutrophication etc. Then, the effluence factors...

Power battery is the core component of the electric vehicle, but its performance is often restricted by equilibrium and temperature conditions. In order to solve those problems, a new type of battery management system was developed. In terms of whole structure, the master slave distributed design scheme...

As environmental pollution intensifies, the frequency of dinoflagellates incidents gradually increases at home and abroad in recent years. It causes serious harm to aquatic ecological environment, aquatic animals, tourism industry and human health. This paper introduces the features and harm of dinoflagellates,...

The paper first introduced the background and causes of arrears of project arrears, and got the following four reasons: unimplemented Project funds; imbalance supply and demand of the construction market; layers of subcontracting; imperfect credit system of the market. This paper talked about the implication...

The Public Works and Spatial Planning (PUPR) Office of Padang, Indonesia has currently focused on the agenda of improving pedestrian paths in several areas, including Jalan Khatib Sulaiman. This study aims to evaluate the pedestrian way on Jalan Khatib Sulaiman by examining physical and non-physical...

The work is devoted to the electric power system of a hybrid ATV. Currently, electric cars are popular, however, they have a small power reserve compared to cars powered by an internal combustion engine. Consideration of the electric power system of a hybrid vehicle is an urgent task to this day. The...

To increase the productivity of a land in producing cassava tubers and soyabean seeds can be done by intercropping both of them. The objective of this experiment was to assess the harvest and viability of soyabean seeds collected from various crop proportion of cassava-soyabean intercropping as compared...

Phthalate esters (PAEs) are one of the new pollutants widely used by human beings, which are widely present and not easy to be degraded, and have received much attention. In order to understand the concentration and pollution characteristics of PAEs in the water body of Danjiangkou Reservoir during the...

Medical waste is an infection hazard for humans and requires management according to stricter standards than other types of waste. In the current COVID-19 pandemic, medical waste management to the strictest of standards must take place. Since 2008, real-time medical waste management systems using radio-frequency...

The issue under consideration is an increase in the efficiency of the coal mining industry due to implementation of "lean production" principles. The proposed solutions will reduce the level of consumption of resources, increase productivity, ensure competitive advantage and, consequently, the viability...

The unsharp masking method is a well-known approach for image enhancement but is very sensitive to noise. Low pass filters are usually employed to suppress the noise, but often lead to the blurred edge. To overcome these problems a sharping algorithm for digital images based on spatial autocorrelation...

When the high voltage direct current (HVDC) transmission lines run in monopole grounding operation or bipolar asymmetric operation, most of the DC current will flow the loop consisted of the grounding electrode and AC lines between transformers. This current increases the reactive power consumption of...

Based on a mobile resource management platform, this paper provides a solution for the effective storage and querying of the massive structured data and unstructured data was generated by research and analysis. In the aspect of structured data, this paper first divides the database vertically according...

Composite metal hydroxide Ni0.5Co0.2Mn0.3(OH)2 has been prepared via a co-precipitation reaction method. The obtained powders show a single phase with a typical hexagonal phase of -Ni(OH)2. SEM reveals that the irregular secondary Ni0.5Co0.2Mn0.3(OH)2 particles were formed at the initial stage and the...

In view of the current situation of the storage battery temperature and deformation monitoring is not satisfactory, a flexible sensor signal detection technique for monitoring the temperature and pressure of the battery is presented. The principle and characteristics of the flexible sensor are introduced,...

With the extensive application of a large number of nonlinear electrical components, harmonic and inter-harmonic components in power system become more and more complex. The harmonics, inter-harmonic and fundamental wave are in the superposition state. The traditional harmonic detection method is Fast...

From enriching VIIS-EW independently researched and developed by Jilin University, the development of virtual digital multimeter was finished for the purpose of designing modern intelligent digital multimeter. With the idea of modularization, the virtual digital multimeter was designed for the module...

To further improve the performance of extraction of harmonic signal from chaotic background, an effective data segment based separation method for single channel signal was proposed. The single channel signal is mixed by chaotic signal and harmonic signal, and empirical mode decomposition (EMD) can transform...

In order to acquire the rock strata movement rule above the coal face, which has shallow buried depth and thin bedrock, choosing the 201 dip working face of chang han gou coal mine, Shenhua group, as the engineering background. Using numerical simulation software UDEC, which has distinct elements, to...

Colored non-slip surface coating has an important role in the prevention of traffic accidents and obtains more and more attention and application. This paper based on chemical reaction principle of polymethyl methacrylate with a curing agent to produce a fast secondary crosslinking reaction coating mix....

on the situation of the ventilation system applied in the coal mine, an online-monitoring system is designed, which focuses on monitoring the parameters of the frequency conversion speed regulating fans. An S7-300 series PLC is employed as the operational core in the proposed monitoring system, which...

On the basis of Canny operator on image processing, The edge extraction of the fuzzy droplet images is carried out by combination of removing a small target and morphological open operation .First, Use edge detection operator to detect the image edge preliminary, and then call remove a small target which...

This paper analyzes the status quo of the logistics process and mobile terminal equipment, taking the university laboratory environment as the background, mainly introduces how to use a popular wireless communication technology and intelligent operating system in the laboratory environment, to monitor...

The comparisons of the displacement and strain modal parameters were researched for the vibrating screen upper beam with fatigue damaged crack. The results show that the modal frequencies and the displacement mode shapes have little difference between intact and damaged upper beam, but the strain mode...

Point of interest (POI) is a special kind of point location that combines some information that people may find useful or interesting. Thus, POI query may disclose directly people's sensitive information. Current location anonymity schemes do not pay close attention to information added to locations,...

The theory of two-port network is an important aspect both of electrical or electronics, in the past, researches of two-port network are mostly about port characteristics, parametric equation or the equivalent circuit derived from the equation parameters. In this paper, an equivalent topology for the...

The key photosynthetic CO2-fixing enzyme ribulose-1,5-bisphosphate carboxylase/ oxygenase (Rubisco) is regulated by a protein known as Rubisco activase (RCA). RCA is a soluble chloroplast ATPase encoded by nuclear genome that catalyzes the activation of Rubisco in vivo by the ATP-dependent removal of...

Communication networks in Cyber Physical Systems exchange the data between different devices or participants within a system. In those networks, nodes are not only used for transmitting and receiving the data, but also for deciding the path of data flow. As the nodes must store the routing table and...

DL-Tetrahydropalmatine is a Chinese herbal medicine used for analgesic purposes, whose main active compounds isolated from Corydalis. We investigate the effects of male Sprague-Dawley rats on heroin self-administration(SA) to examine the role for DL-THP. Rats were trained to intravenous injection heroin...

Purpose: To observe effects of antioxidant compounds on the learning and memory impairment induced by methamphetamine (MA) in mice. Methods: Fifty 6 weeks old male C57bl/6 mice were randomly divided into 5 groups: group A was control group, group B was model group, group C was 50 mg/kg group, group D...

The depleting reserves of fossil fuels encourage the arrangement of biodiesel as an increasingly popular alternative. The energy is also more environmentally friendly, and at the same time, low in emission content. The biodiesel feedstock source is also easily found in Indonesia’s tropical forests, yet...

The COVID-19 outbreak has been declared a pandemic, several modern medical drugs of excellent quality, especially immunostimulants, are being and continue to be developed from secondary metabolites of herbal commodities. World Health Organization (W.H.O.) reports the dependence of 80% of the world’s...

Indonesia’s green petroleum coke production capacity reaches 360,000 tons/year. Green Petroleum Coke (GPC) is the most widely used raw material in the manufacture of anodes for aluminium and steel smelters, but it is does not have good quality for smelting because it contains high ash, volatile matter...

One of the methods for improving the efficiency of power system transmission is the Optimal Reactive Power Dispatch (ORPD). The ORPD technique has been used to minimize the transmission network’s power loss by regulating the system control variables. The control variables regulated by ORPD control the...

The sustainable biomass production of fuels, chemicals, and other commercial products from lignocellulosic materials has received widespread attention. One of the potential biomass resources to be developed into biofuels is tobacco stalks. Production of tobacco plants in East Java Province was 84,100...

In order to achieve the intelligent transformation of the existing inventory management system and supply chain system for tobacco raw materials, this research aims to establish digital twin models of the main storage facilities such as the tobacco turnover warehouse, direct material storage area, open-air...

This article aims at realizing the steel cage skeleton module in nuclear engineering. The article conducts research and analysis of the steel cage skeleton module of the HPR1000, and propose standardized design methods for the division of steel cage skeleton module, node designing, module lifting, etc....

An injection molding machine is a machine that uses an injection process into a mold to make a product according to the shape of the mold. In this study the aim was to apply the injection molding machine control system method which is still conventional at CV. Guna Teknik, where the previous method was...

Tacit knowledge that dominantly exists in the construction project and embed in humans’ minds could disperse after the project team is disbanded at the end of the project. As the result, repeated mistakes could occur, and lesson learned from the previous project is not optimally utilized for the benefit...

W-beam guardrails are the most widely used road safety barriers worldwide. They are used for protecting vehicle occupants on dangerous areas of roadways. The ability of W-beam guardrails to absorb some of the crash energy reduces the risk of injury for vehicle occupants and limits deformation of impacting...

With the continuous development and progress of computer technology, physical education has been greatly affected by computer Guidance systems in physics teaching can improve students 'interest in learning, improve students' attention. It begins with a simple analysis of the computer system operating...

In order to achieve high mobility for country crossing and the ability of climbing vertical obstacles, a new lo-comotion mechanism that combines legs and wheels is proposed, and a prototype mobile robot that adopts the mechanism is introduced, actions for obstacle climbing is designed. Focused on forces...

in recent years, product design concept has extended and expanded continuously. People's attention to low carbon concept improves gradually. In particular, the concept of low carbon and environmental protection starts to fuse in product design so as to improve environmental protection idea of products,...

Objectives: The aim of this study was to investigate the safety and efficacy of propofol sedation with a computer-assisted target-controlled infusionsystem in elderly patients during endoscopic retrograde cholangiopancreateography (ERCP). Methods: Included were 150 consecutive EPCP procedures elderly...

In online educational courses, knowledge point is the basic unit used for the organization and dissemination of information. Mining the association of knowledge points can help to improve the navigation of course learning. However, it is difficult for the existing mining algorithms to balance the performance...

This paper is intended to study the model of bathtub water temperature in time and space. First of all, a differential function model is chosen as the basic model. Based on the differential function model, the new model considers factors of dissipating heat from water surface and the bathtub. Under the...

In this work, a new type of micro-electrolysis technology using combined materials containing fly ash, iron scraps and lanthanon Gd on the treatment of toxic and harmful aniline wastewater was presented. Fly ash was applied instead of activated carbon in the combined materials and single-factor experiment...

Due to new energy resources, including wind energy storage has been well into the grid, power dispatch and distribution of the operation process involves large-scale, multi type, highly complex data, which contains real-time data, planned data, early warning and monitoring data, environmental data. At...

With the constant improvement of Chinese economic development level, there have been constantly increasing researches on artificial intelligence and database field and the application of data mining in each field has been increasingly wide. However, with the increase of information quantity and data...

Aiming at the shortage of traditional phase-locked method in the three-phase unbalanced conditions of power grid, this paper proposed a novel software phase-locked loop control strategy. This paper introduces in detail the working principle and designing method of the digital PLL by comparative experiment....

In seismic exploration, seismic data is always irregular and incomplete which will influence the subsequent processing. Therefore, seismic reconstruction of missing traces is very necessary. The seismic data reconstruction method based on compressive sensing (CS) has been applied widely in recent years....

Public interest on the thermal comfort of subway cabin is increasing, since more than 90% of the complaints from passengers are about the thermal discomfort. Some passengers may feel hot, while the others may feel cold even in the same cabin due to the uneven temperature distribution in the cabin. For...

The adsorption of Cs+ by a novel extractant-impregnated resin (EIR), was studied using batch adsorption experiments. The new EIR was prepared by impregnating 4-tert-butyl-2-( -methylbenzyl) phenol (t-BAMBP) onto AB-8 macroporous resin beads. Thermogravimetric analysis (TG) and the Fourier Transform Infrared...

China made a commitment in Sino-US Joint Statement on Climate Change that its carbon emissions will achieve the peak around 2030, and the percentage of non-fossil energy in primary energy consumption will reach 20% then. This paper aimed to analyze the how the targets could be achieved by the transition...

This paper mainly discussed the system reliability with the new isolated circuit breaker and the traditional equipment in operation process. Firstly, we established the Poisson marked point process model of the outage time and derived their mathematical expectations. And we used the expectations as the...

Modeling method at present based on traditional manual modeling method has bottleneck problems that restrict the development of digital city, mainly for the long cycle, large workload, high cost. Based on the analysis of digital city and 3D GIS, this paper designs a solution based on CityEngine 3D modeling...

Focusing on the disturbance of ocean reverberation in active sonar detection, this article researched the characteristics of vector ocean reverberation when vector hydrophones were the receivers. By experiments and theoretic analyses, scalar and vector ocean reverberation was gained when transmitting...

This examination paper reveals insight into how to animate the part of ancient design components in Egypt and the UAE as a rule to apply green engineering standards. The paper proceeds to calling attention to the natural components and ideas highlighted in compositional outline and how they are implemented...

The article deals with the issues of existing small innovative enterprises (SIE) at higher education institutions - how stratification and separation in one organization interfere in an active assistance in large successful investment projects. A comparative analysis of successful involvement of SIE...

In the fulfillment of public trust, nonprofit organizations are required to provide information on the source of funds obtained and the use of such funds in a financial statement which will ultimately be assessed the financial performance of nonprofit organizations. Nonprofit organizations and contributors...

A new electrodeposition-based method was introduced to prepare SnO2 nanoparticles for use in resistive-type gas sensor. Different from most electrodeposition methods, the product formed in electrolyte rather than on the electrode was collected and used. This product was easier to be coated onto a substrate...

The demand of indoor positioning become more and more urgent with popularity of the smart home, smart medical, etc. In recent years, the research on indoor positioning has achieved some results, especially the method based on Wi-Fi, which is due to Wi-Fi technology is mature, Wi-Fi signal is relatively...

This article presents the results of experimental studies of definition the mechanical characteristics of epoxy resin and hardener without adding nanopowder and with the inclusion of nanopowders. The stability and destruction process of laminated plates made of composite material with different numbers...

Hydroxyapatite (HA) can be used as drug delivery material in cancer treatment by adsorption of cancer drugs such as doxorubicin (DOX) to hydroxyapatite surface. This experiment studied the effect of pH value and DOX/HA ratio on the release rate of doxorubicin from hydroxyapatite in phosphate buffered...

This research uses only surface control points to parameterize the 3D geometry of a muscle body. Extension from surface to interior is achieved using a harmonic interpolation in cross section and in the lateral direction using NURBS. This representation preserves geometric smoothness, and allow muscle...

Research was carried out on the use of activated carbon from bagasse for processing laundry waste. The method used is the adsorption method with a variation of the length of contact between activated carbon and laundry waste. Laundry waste parameters analyzed included MBAS, phosphate, COD, BOD, TSS and...

Food availability and safety are basic of human rights. The students are a risky group to become the unsafe consumers of snacks because of the threat of biological or chemical contamination that is disrupted the health. Sausages and nuggets are the examples of frozen foods that is the children like....

This paper review and prospect the characteristics of active sonar underwater target feature extraction, which is commonly used at home and abroad, and analyzes the main technical difficulties.

This paper contains an explanation of the fertigation management system model to deal with the water crisis and the efficient use of plant nutrients in the case of agricultural industrial land in Lembang, Indonesia. The method developed uses a time-duration method equipped with supervised machine learning....