Advances in Engineering Research

A new method for measuring the frequency of power system based on support vector machine is proposed in this paper. This method used the exploratory way, under rare sampling points, to fit the original signal with a single frequency curve. Then, through comparing the amplitude, the power system frequency...

Among the most developed renewable energy sources, wind energy attracts the most research attentions. Wind energy is easily captured far away from the places where wind energy is used. Because of this unique characteristic of the wind, the generation and delivery systems of the wind energy need to be...

In this paper, variations of loss factor and storage modulus of Alkali-Activated Composite cementing materials (AAC) made from slag and fly ash and Ordinary Portland Cement (OPC) were studied at the temperature rising period from 40 to 200 by using Dynamic Mechanical Analyzer (DMA). The study showed...

A new and effective analytical method is presented for the acoustic multipole sources in isotropic tubular structure filling liquid metal sodium whose symmetric principal axis is parallel to the tube axis the exact solutions could be found. In this paper, the new method is adopted to simulate the general...

The steel reinforced concrete structure is widely used in the large space structure with its excellent mechanical properties, superior economic performance and outstanding comprehensive benefit. This type of structure is a combination of structure, section steel, steel bar, concrete and other components,...

This design of dual fuel controller is out of consideration to start the engine by using methanol gasoline of different proportioning since the calorific value of methanol is lower than that of gasoline. Adjusting the low- level width of injection pulse control signal from ECU and increasing the fuel...

In this paper, the detailed mathematical models are established for solid oxide fuel cell-humid air turbine (SOFC-HAT) combined cycle system, and the performances of the combined system are analyzed under variable conditions such as the fuel flow, pressure ratio and turbine initial temperature. At the...

In order to explore Rhizobium medium production using leaching liquor of green corn straw. Corn stalk powder extract solutions (CSE) are obtained and suitable carbon sources (glucose) were supplemented as liquid and solid Rhizobium medium. Compared with the yeast extract mannitol (YEM) medium, Rhizobium...

With the development of China's economy and its sheer size, the increasingly pursuit of a better life, people's demands for the environment and health are getting bigger and bigger. Due to traditional lifestyles and habits, rural people still use unclean and Non-environmental power sources. Most of them...

This paper chose the surface sediments of lakeside wetland from southern Yangzonghai as the research object, studied the sediment contents of total arsenic (TAs) and arsenic fractions (acid soluble arsenic-F1, reducible arsenic-F2, oxidable arsenic-F3 and residual arsenic-F4) of different seasons and...

An electromagnetic leakage testing system was designed in this paper based on Lab Windows/CVI. The system combined antenna and spectrum analyzer to test the electromagnetic leakage of the computer system.

The transportation problem causing a traffic jam in this study is a bottleneck of the road, where downstream traffic capacity is smaller than the upstream, usually, happen in the bridge entrance and where the road geometric changes such as four lanes 2 line into two lanes 2 line. This study aims to find...

The need for catalysts for effective and environmentally friendly waste degradation is increasing. Manganese oxide has a layered structure which is theoretically capable of producing catalysis properties. The synthesis was done through variation of mole ratio of precursors and time of washing. The variations...

In this paper, the characteristics of explosion shock wave in the water shock tube are studied by means of finite element simulation analysis. The principle of the comparison calibration method based on the pre-pressure water shock tube device is introduced, and the propagation rule of the explosion...

Silt foundation in Kaifeng area was select as the research object, to verification the combination of foundation treatment for CFG pile + vibro-replacement stone column pile methods. The results showed that: engineering properties of the foundation soil between piles are improved after the CFG pile or...

This paper developed a concrete wall protective agent with high weather-ability and contamination resistance. In order to realize the properties of protective agent, acrylic / polyurethane emulsion, fluorocarbon emulsion was used as basic raw material, with ultraviolet absorbent, anti-foam agent, preservative,...

The influence of temperate and time on variational principle of Si content in A356 recycled scrap during melting process was investigated in this paper. The results indicated that the variations of Si content showed conic laws which decreased firstly then increased with the holding time. The maximum...

Today we live in a world where tons of data is been generated, so in order to store all these data, we need many numbers of servers and networking which are more expensive in buying and maintaining them which creates more complexity. In order to resolve this problem we had implemented cloud computing...

The content of mercury in the tissues of amphibians from Northwest Russia (Vologda region) varies within 0.001 to 0.370 mg/kg wet weight. The average values of Hg content in the organs and tissues of studied amphibian species decrease in the order: liver > kidneys > heart > intestines > muscles > skin....

Aiming at the problems such as inaccurate positioning caused by indoor blocking of satellite positioning signals and the demand of personnel attitude detection, this paper designs a seamless positioning and attitude detection system based on GPS and inertial navigation, the system uses STM32 as the main...

Effective learning is quality learning in relation to the effectiveness of the learning process interaction itself to achieve the expected goals. This study aims to determine the effectiveness of lectures in the middle of the Covid 19 pandemic, where learning by face-to-face method is vulnerable to the...

This study analysed the wound healing and antioxidant activities of Swietenia macrophylla seed and Syzygium aromaticum bud. The antioxidant activity of Swietenia macrophylla seed and Syzygium aromaticum bud were determined using diphenyl-1-picrylhydrazyl (DPPH) scavenging assay. The cytotoxicity activity...

When performing the injection molding process, the influence of the set parameters such as injection time, injection pressure, and other parameters used will affect the mold result. The problem that arises when doing injection molding using multi-cavity molds is the appearance of product defects. The...

South Sumatra Province has been designated for river transport arrangement in 16 Ilir Palembang City in order to realise safe river transport services through the arrangement of River Port Area 16 Ilir Palembang City. Through the implementation of the acceleration programme (quick wins) at the 16 Ilir...

This study introduces a new type of prefabricated steel-reinforced concrete composite (SRCCT) shear wall. The SRCCT shear wall consists of steel composite tubes, concrete inside and outside the tubes, and stud-tie bars. To investigate the seismic performance of the SRCCT shear wall and the working mechanism...

Stroke is a quick loss of brain activity due to the disruption in the blood supply system. Among stroke survivors, losing hand function and finger spasticity are the main ailment. The purpose of this study is to investigate the electromyography (EMG) features in time domain and frequency domain during...

A series of strong earthquakes struck Lombok Island on 29 July (M 6.4), 5 August (M 7.0), 9 August (M 5.9), and 19 August (M 6.3 and M. 6.9) 2018 which led to severe damage with more than 500 deaths, 1,833 injured and devastated 186,010 houses (National Disaster Mitigation Agency). Lombok Island is categories...

Psychrophilic yeasts with unique properties have recently become a new source of biologically active products. However, psychrophilic microorganisms, including yeasts that inhabit Mongolian permafrost, are practically unknown. Therefore, this study was the first attempt to reveal living organisms hidden...

This paper presents the design and development of an IoT-enabled omni-directional robot for indoor urban delivery systems, addressing the challenges posed by confined spaces, frequent human interaction, and dynamic obstacles in urban indoor environments such as offices, malls, and hospitals. Traditional...

The issues of power theft and gas leakage will never end, and this remains a problem for both residential and industrial consumers. The majority of current systems that monitor power and gas consumption are manual, or use practical devices that separately monitor gas and electricity that pose constraints...

The effect of fuel variability in Thailand is that diesel fuel is one of the fuels affected by fuel variability. The use of alternative energy is an alternative to diesel engines. Therefore, this research is interested in studying the physicochemical properties of test fuels, engine efficiency, combustion...

Road pavement planning is one of the determining factors in creating safe road infrastructure. One type of asphalt that is commonly used is flexible pavement with a surface layer of asphalt concrete (Laston). To increase the durability of road pavement, this can be done by making changes to the physical...

Mongolia is a country with a large territory, has abundant natural resources, and is located between the two great powers, Russia and China. For this reason, a transborder urban cluster can be a significant tool to support agriculture, tourism, trade, and further education, health, and transport sectors....

On the basis of personal credit rating methodology from home and abroad, combined with the current status of financial institutions, credit rating and specific operational measures, proposed using Modified Fuzzy comprehensive evaluation of individual credit assessment. The method utilizes AHP and group...

In this paper, we conduct research on the modern architecture planning and design patterns under green and low carbon background. Nowadays, the development of the national green building although there is a big progress, but in order to realize in the true sense of the green building, on the one hand,...

Consideration the effects of surface tension on the elastic field of solid material has applications in several modern problems in solid mechanics. This paper proposes an application of surface elasticity theory in the analysis of contact problem at nanoscale. The Fourier integral transform method is...

Based on the existing theoretical study of Bi2Te3 nanowires, this paper establishes the relationships among the band structure, relaxation time and ZT values by solving the Boltzmann equation. Then, comprehensive analysis is made to figure out how these factors have influence on ZT values of Bi2Te3 thermoelectric...

The content of solanine in potato was determined by high performance liquid chromatography (HPLC) and UV detector. The content of solanine in potato was studied in different regions and different cultivars.With the extension of the growth time, the content of solanine decreased gradually in the three...

In this paper, through the placement phase positioning equipment short-range observation station, the measured data of the geometric relationship of low precision ranging applications into the rear observation station, the current post observation station and the distance between the rear observation...

The FEM simulation of flow of extruding plastic gear during cooling and die design was studied in this paper. A capillary rheometer MLW-400 was used to measure the curve of shear rate VS viscosity of POM-500P, the Power Law constitutive equation was used to describe the POM rheological characteristics,...

The possible nano-crystallization formation and thicker interface layer at the higher annealing atmosphere, however, is easy to suppress the superiority of high-k dielectric deposition in the improvement of drive current and reliability. This phenomenon was apparently observed at 900oC annealing tested...

In the 21st century of science and technology, the cloud computing technology has already been full applied in all industries, which has quite obvious effects. Nowadays, all libraries have realized the digitalization. To become popular and obtain development, the digital library needs to introduce the...

This data collection system is based on MSP430, which is an ultra-low power 16-bit micro-controller. Multi-task application program is designed in uC/OSII, which is real-time operating system. It can handle a variety of meter signal and communicate with concentrators. This system has a good real-time...

Remote field eddy current was proved to be an effective non-destructive testing method for tubular structure such as tubes and pipes. Further applications of remote field eddy current testing were restricted by disadvantages such as weak signal, over-long sensor, and poor ability to detect fine crack...

In view of the problem of the subjectivity and some factors are hard to quantify in the process of selecting the agent for government investment projects. Draw on relevant research results,analysis of the factors affecting the comprehensive ability of the agent and establish a comprehensive ability evaluation...

In three-dimensional space, the traditional algorithm of virtual force applies to continuous target tracking process is prone to problems of distraction and shorter time in keeping tracking of the target. Aiming at solving these problems, this paper proposed a suitable three-dimensional space deployment...

This contribution compares concrete structure design results obtained via the partial reliability factor method and using a probability-based method. The Monte Carlo simulation method, modified by the Latin Hypercube Sampling method, was used to calculate the reliability of a designed structure. Economic...

A new strategy of high concentration short duration treatment of Thidiazuron (TDZ) for enhancing adventitious buds formation from hypocotyl explants were attempted in Jatropha curcas. The best shoot buds induction (81.91%) and number of buds per explant (10.16) were obtained from hypocotyl explants treated...

The physical quality (texture and color), moisture content, water holding capacity, low-field nuclear magnetic resonance (NMR) transverse relaxation T2 data and the correlation among these indexes in pre-cooked (boiled for 5 min) Chinese shrimp Fenneropenaeus chinensis during frozen storage were investigated....

With the rapid development of computer science and technology, embedded system as a new area of computer application, with its simple, efficient and so more and more people pay attention, Nucleus as a typical embedded operating system, with small, powerful, easy to customize and other characteristics,...

Test of interior and external noise and vibration signals of Minibus were conducted in accelerating and constantvelocity driving conditions. By using time domain, frequency domain and 3D spectral arraymethods, the exterior noise, interior noise, the vibration acceleration of driver’s seat and driving...

The role of the collective behavior of defect ensembles at the crack tip and the laws of fatigue crack propagation in aluminum-magnesium alloy AMg6 have been studied under conditions of symmetric tension–compression gigacycle loading at 20 kHz using ultrasonic fatigue testing machine Shimadzu USF2000....

Medicinal plants are one of the traditional medicines that are now often used by the community. One plant that can be used as a medicinal plant is guava (Syzygium malaccense). The plant is a Syzygium genus that grows a lot in Java. Several studies have shown that stem bark of the plant contain sapiens,...

In order to overcome the influence of black region or complicated texture and extract a smooth contour, this paper provides a novel contour extraction algorithm based on twice dynamic programming. The final contour is extracted by a weighted average of the two contours, and control points optimization...

Both conventional hydrogen peroxide bleaching and tetraacetylethylenediamine/hydrogen peroxide system bleaching were carried out on the scoured jute fiber, and the properties and structures of bleached fibers were compared to estimate the effect of tetraacetylethylenediamine in hydrogen peroxide bleaching....

Pb input into agricultural land in addition to the natural geological activities, can also be produced from anthropogenic activities such as the application of organic matter, fertilizers and the use of pesticides. Although Pb is not an essential element for plants, plants can absorb it from the soil...

Logic and programming are the primary issues that students face when learning to program microprocessors and microcontrollers. Students must have systematic practical instruction in order to comprehend the lesson. The goal of this study was to create and validate a student worksheet to ascertain the...

Parigi and Cijulang sub-districts are coastal areas ini Pangandaran Regency that great potential in the fisheries sector. Both sub-districts have strategic geographical characteristics as coastal areas with abundant marine resources. However, the development of this potential is faced with significant...

The study presents the spatial changes, i.e., LULC and temporal changes., Area and Bank Side change of four islands of Bangladesh- Nijhum Dwip, Kutubdia Island, Hatiya Island, and Sawndip from 1988 to 2024. In this study, the geospatial tools of The United States Geological Survey (USGS), Geographical...

The bucket tooth is an excavator component, primarily used for digging soil or rock. Due to frequent wear and tear, its mechanical properties require enhancement. This research aimed to increase the hardness and wear resistance of PC200 excavator bucket teeth through quenching and tempering. The material...

As a new type of bus service mode, the efficient operation of demand-responsive bus can not only improve the efficiency of urban traffic, but also meet the growing travel needs of citizens. Based on the survey of residents’ travel choice behavior and willingness in Jiaozuo City, this paper constructs...

In recent years, improving the safety of civil engineering structures has become an important part of structural development. In order to improve the safety of oil and gas transportation systems, it is necessary to focus on pipeline safety. The study focused on an X80 high-grade steel pipeline with a...

Safely managed sanitation, as introduced in United Nations Sustainable Development Goal 6.2, involves the safe handling of fecal sludge from user interface to safe disposal. It comprises sanitation services such as containment, emptying, transport, treatment, and disposal, with no adverse effects on...

The Georgian power system with an annual electricity consumption of about 13 billion kWh is small, but has a number of technological features. As of 01.06.2021, there are 59 hydropower plants operating in Georgia with a total installed capacity of 3398.6 MW, among them 26 are medium and 32 are small,...

Using Inductively coupled plasma mass spectrometry to detect Cd in benthos the artificial reef .The results showed that: Cd of benthos is varied from of 0.011-0.541 g/L, mean 0.188 ± 0.220 g/L. The distribution of Cd decreased in the order: gonads> gills> muscle in different tissues. The enrichment regularity...

In order to meet the needs of natural language shallow parsing for Persian, this paper analyzes the boundary rule of Persian sentences and puts forward an effective algorithm and program of extracting Persian simple sentences by repeated experiments on the basis of Uppsala Persian Corpus. This algorithm,...

A pot experiment was conducted to study the effects of photosynthesis of Chinese cabbage under NaCl stress, and different concentrations of abscisic acid (ABA) solution about 1, 5, 10 and 20 mol-L-1was sprayed, control was sprayed water on leaves. The results showed that spraying ABA could improve net...

In this paper, the two-gear transmission electric vehicle was studied. First, the transmission ratio was optimized by use of genetic arithmetic, which can increase the drive mileage. Second, the dynamic performance of electric vehicle was analyzed, including maximum velocity, acceleration time and maximum...

The laccase of 4222 produced was investigated to the degradation ability of lignin and cellulose in the corn stalk powder solid Medium. The results showed that laccase peak was later than the liquid culture, arrived 1842.9 U/L on 15d. The training period of 30d, weight loss of powder dry straw was 82.48%,...

The shear-wave velocity of rock and soil masses is the quantitative basis for understanding the dynamic parameters of site soil and evaluating its dynamic performance. The field test and laboratory test are two major methods and it is necessary to study the difference of the test results obtained by...

In this thesis, data security in cloud computing is regarded as the research object. First of all, the definitions, model, structure, application, research organization and related knowledge of cloud computing is introduced. Then, the data security assurance methods which used in this thesis including...

With pineapple leaf fiber as the raw material, refined dry jute is obtained through refined processing, which is blended with cotton to trail-produce 30S pineapple leaf fiber/cotton (30/70) blended yarn. Through the combination of industry, university and research and by cooperating with the textile...

Microgrid (MG) power system plays an important role to fulfill reliable and secure energy supply to critical loads of communities as well as for communities in remote area. Distributed Generation (DG) sources integrated in a MG provides numerous benefits, at the same time leads to power quality issues...

Combined toe-and-side grouting technology was employed to increase the bearing capacity of cast-in-situ bored piles. A field test was conducted to investigate the combined toe-and-side grouting technology for over-length friction piles. L-shaped injection pipe was used for pile-toe grouting and circular...

Asphalt pavement is the main pavement pattern in China. There have been a serious of achievements over the past decades in mechanics theory and damage mechanism of asphalt pavement. Based on the above two aspects in asphalt pavement design, this paper provides a detailed overview of the application of...

With the development of industrialization, application of pipe is becoming more and more. The traditional pipe cutting method cannot meet the market demand. CNC cutting can make up for the deficiency of traditional manual cutting, a kind of cutting robot control system based on Trio motion controller...

In the exploitation of the mineral resources, deep subsurface structure research can explain the formation mechanism of resources and guide proper resource assessment. Receiver-function is an effective method to solve problems related to deep structure. Based on the uncertainty of this method, which...

In the present paper a band pass microwave filter based on spoof surface plasmon polaritions (spoof SPPs) mechanism and with suspended diamond slot structure is designed and simulated. The filter is composed of three sections, where in the third section, a corrugated metallic strip with parallel and...

Fatigue damage is the main damage cause of crane. The prediction method of fatigue life determines the design and service life of the crane. Therefore, it is extremely important to study the fatigue life prediction method of crane. In this paper, the existing fatigue life prediction methods are summarized...

The angular cross section profiles are increasingly used in tall pole structures such as telecommunication towers, transmission towers and wind energy turbine supporting towers. So, this work is based on the aerodynamic study of this type of profiles for three types of considered arrangement of profiles....

The optimal capacity combination model of an isolated microgrid is established, which considers the pollution emissions, the punishment of renewable energy waste, the effect of charge and discharge process of lead-acid battery to its lifetime and reliability, the total cost and punishment of renewable...

The selection of cement slurry with different consistency and different concentrations of Sodium silicate, design and test research on the mixture ratio of cement-Sodium silicate grouting material, 4 W/C and 4 0Bé co design 16 groups of proportion, through the collation and analysis of experimental data,...

The sluice is located in the place where the basic seismic intensity is degree 8. According to anti-earthquake safety calculation of lock chamber based on finite element method, the result shows that the displacement of the lock chamber is within safe levels and that the strength of sluice satisfies...

Preparation of sultamicillin tosilate -cyclodextrin inclusion to study the stablility. Method: the contents of the inclusion compound of the mixture were determined by the method of saturated aqueous solution. The content of the mixture was determined by UV spectrophotometry and the content of the mixture...

Phase change materials and traditional building materials can be combined into new building materials which have regenerative and thermostat function, it has a large energy density and heat absorbing approximately constant temperature and it can effectively maintain comfortable indoor environment and...

The glass lettuce was made as material, the effect of different concentrations (0, 50, 100, 150, 200 μmol·L-1) of exogenous melatonin on growth, antioxidant enzyme activity and osmotica of lettuce seedlings under salt stress was studied. The results showed that the root length, stem diameter, and dry...

Flight in icing conditions brings significant safety risks due to aircraft aerodynamic performance reduction, stability and controllability deterioration, failures, mechanical damages. For reliable operation in icing conditions active anti-icing/de-icing systems are needed, which entail at the present...

The article presents the dataset on the influence of paratypic factors on the productivity of Holstein cows. The best indicators of productivity were revealed in the cows with a live weight of 400-449 kg at the first successful conception. The milk yield amounted to 8863.2 with a fat mass fraction of...

Compact plate-fin heat exchangers are extensively used in automotive, marine and aviation industries. The thermal stress in structure of heat exchange surfaces is sufficient and leads to reduction of the resource of such devices if they are used for cooling hot air (300…600 ºС). The utilization of the...

4G-LTE system is a long-term evolution technology proposed by 3GPP. It belongs to quasi-4G technology. It has the features of high rate, wide coverage and low latency. The physical layer is the bottom of the system and the key of technological innovation of mobile communication system. In this paper,...

Strain localization in sand is modelled as the event of two-phase coexistence. Shear bands pertain to the high-strain phase of materials. And other regions outside bands pertain to the low-strain phase. Inside each phase the equilibrium equations must be satisfied. Across interfaces between the two phases,...

In this paper, a synthesis method is proposed based on vector transformation for linear nearest neighbor quantum circuits. Its aim is to construct a linear nearest neighbor quantum circuit, and to reduce the quantum cost of the linear reversible circuit. The vector representation of the sequence of the...

This thesis analyzes the embarrassing situation of uneven development of China's sports TV media in the omni media era, and puts forward the idea that the complementary with new media should be strengthen and local TV media should further cooperate, sports authorities should take effort to improve the...

Modal parameter identification plays an important role in the dynamic performance evaluation and design of seismic structures. In this paper, we tested the large span space steel structure laboratory in a university, and then got modal parameters such as frequency and vibration mode based on the assumption...

With the growth in demand for information processing, considering that cloud computing technology and virtual digital libraries have common goal. In this paper, take the cloud computing as the basis of virtual digital libraries, firstly, research the digital library virtualization under the circumstance...

Based on the analysis of dead zone compensation principle in H-bridge inverter series structure, an improved average voltage feedforward compensation method of H-bridge inverter series structure is studied. Because the traditional average voltage feedforward compensation method has the phenomenon of...

Aiming at the problem of short-term load forecasting in power system, this paper propose a load prediction method based on multiple proportions smoothing method. We perform multiple linear regression analysis and partial correlation analysis on the load with respect to the weather, and found the meteorological...

Kampung Kota (KK) is a form of urban area settlement in Indonesia. KK is a characteristic of big cities that still carry the environment and behavior of rural life, dense buildings, densely populated. Also, urban villages are characterized by low per capita income, developing without regular patterns....

The purpose of this study was to design and analyze the loading of the modified rim strength (cast wheel type) on the motorcycle. The method used is to use SolidWorks software, loading simulation analysis performed with 3 variations of the rim model and three (3) variations in the number of spoke (8,...

The purpose of this study is to map the problems with the implementation of an internal control system in the local government. A qualitative approach through a method of content analysis is used in this research. The analysis used is the Leximancer instrument. The data used derived from audit reports...