Advances in Engineering Research

Electrical energy is a fundamental need that must be met sustainably and economically. In Indonesia, most power plants use non-renewable fossil fuels such as coal, oil and natural gas. The use of these fossil fuels leads to high electricity production costs, so optimization is needed to reduce operational...

The aim of this study was to conduct a bending experiment to study the mechanical properties of natural fiber composites made from sea pandanus leaves (Pandanus Tectorius). The method for making composites by hand lay-up and vacuum bagging. The utilized fiber is oriented at zero and ninety degrees. Bending...

Aiming at the cracking and water leakage distresses caused by insufficient invert thickness and material weakening in highway tunnels, this paper proposes a monolithic fully prefabricated invert structure scheme. A refined load-structure model is established based on Abaqus to systematically analyse...

In this paper, based on penalized least squares, the penalized weighted sum of squares is set up, we deduce the calculation method of a positively definite regularity matrix and obtain the corresponding results in least squares collocation model. According to the foundational properties of the random...

Indoor undisturbed soil column incubation experiment with PVC tube was conducted by choosing 3 typical stages of shrub, coniferous forest and broadleaf forest as the research objects, and setting 3 different temperatures (12oC, 24oC and 36oC) and 3 different water conditions (soil natural water, semi...

Considering the business features and practical requirements of the optimal reactive power planning, this paper presents an optimal reactive power planning software system for the urban network. With multi-level architecture, the software is divided into several layers, which are managed as plug-ins....

At present, the study on the temperature fields of floor radiant cooling system and ceiling radiant cooling system based on displacement ventilation is more, but for the humidity field research of the two systems is insufficient. There is a thermal stratification in the temperature field of both kinds...

Speech recognition technology is a allow the machine to understand human language and speech recognition algorithm is to achieve this function, the system by using HTK toolbox to design a speech recognition system, and in-depth research and Simulation of correlation algorithm, has completed the speech...

The internet innovation and development has already deeply penetrated into all aspects of economic world. The attaching problem-the network and information security problem becomes increasingly prominent, and the complexity and harmfulness of network security situation manifest themselves become more...

The fluctuation and intermittence of renewable energy sources power poses a great challenge to the stable operation of power system, which needs power conversion system(PCS) to provide spare power to achieve dynamic balance of supply and demand for the power grid. Cascaded H-bridge converter is a main...

The article treats new approach to technical maintenance of open pit excavators based on identification of technical state by functional diagnostics methods. It shows that applied diagnostics methods practically give full picture of actual state of diagnosable equipment which allows to estimate residual...

For the advantage of high range resolution and low power, the radar usually use the linear frequency modulated continuous waveform. With the development of electronic technology, the operating bandwidth of radar is also growing. In broad bandwidth, to realize the linear modulated waveform using VCO is...

Recently, coal mining in Jining has extended to the crowded cities and villages, bringing out the deformation of the rock in these areas, which leads to the damage of the civil and industrial buildings. Therefore, the ground surface deformation and the damage characteristics of the buildings have been...

With the continuous development of urbanization, solid garage is playing a more and more important role in city infrastructure. In this paper, a mathematic model on queuing theory for lift-sliding solid garage is constructed, and some important performance parameters are analyzed base on the quening...

Nowadays the need for sharing and exchanging information is becoming more and more important. Based on ontology, this paper proposes an integration framework for manufacturing systems. With the XML has been more widely used in many fields, the development of the sophisticated XML-based data management...

The sludge produced by biochemical treatment process of coal gasification wastewater contains large amount of phenol and tar, it is difficult to be degraded by conventional methods. Supercritical water oxidation (SCWO) technique was carried out for biochemical sludge from coal gasification wastewater...

Cladophora glomera is a genus of widely distributed, global, sessile, large green algae, which is also a euryhaline alga. This study discovered that changes in salinity can induce C. glomera to produce massive amounts of extracellular polymeric substance (EPS) when controlling other environmental conditions....

at present, the inheritance of the intangible cultural heritage of the martial arts has been in a fix, but the application of digital technology provides a new way for the development of the martial arts. The digital technology system of the intangible cultural heritage is a digital service platform...

In order to solve the problem about air pollution caused by straw burning and improve comprehensive utilization of straw, the paper analyses feasibility study of straw on the application in green buildings based on the survey about the existing situation of straw in rural areas of Emeishan city, Sichuan...

This paper is a study of existing GM(1,1) model and manages to improve its inadequencies, such as the initial value, the background value of the model, the smoothness of the original data sequence, etc. By replacing the least square method with artificial intelligence method, the paper proposes a new...

Beach tourism is tourism that widely associated with activities on the water, such as lakes, beaches, bays, or sea, which managed in an integrated and planned manner, so that they are ready to receive tourist visits. So far, the existence of beach tourism areas, which have a unique nature, have not been...

In order to study the adaptability of reasonable pavement structure in permafrost regions, the first-stage construction of Gonghe-Yushu highway from K629 + 800 ~ K634 + 200 is taken as test section, and establishes the numerical simulation model of subgrade and pavement by using Flac3D software. Compares...

The profile of the machined surface at the peripheral end milling is made when various types of fluctuations occur. At milling under self-exited oscillations, the machined surface, in addition to traces from cutting in with each tooth, has a wavy profile. The purpose of the article is to consider the...

The research aimed to determine date palm pure concentration and its effect on Tissue Culture of Grammatophyllum scriptum. The research used an experimental method with single factor and seven treatments arranged in a Completely Randomized Design. The treatments were: (1) Vacin & Went (VW) medium; (2)...

The bellows is a flexible force structure. When a parameter of corrugated pipe is changed, the force and deformation of the pipe are changed. With double hole Steel corrugated pipes as the background, this paper adopted finite element analysis software ANSYS to make numerical simulation of the study....

Standard bat algorithm is easy to fall into local optimum to handle complex functions with high- dimension. This paper proposes a hybrid chaotic mutation bat algorithm handling local convergence. The chaotic variables and mutation operator are introduced to bat algorithm to enhance its global search...

Multi-modal image fusion is a process of integrating complementary information from multiple images of different scene. A novel medical image fusion algorithm based on the fractional wavelets transform (FRWT) is proposed in this paper. The method is implemented to fractional wavelets transform to get...

Threaded adhesive joints between stainless steel electrodes and insulating structure of axial insulation break was studied in detail. Wet winding process was chosen for Glass Fiber Reinforced Plastic inner insulation tube, and threaded adhesive method was chosen for joints bonding GRP to Stainless Steel....

Under the guidance of international standards for carbon emissions, two greenhouse gases (GHGs) accounting models have been established for integrated iron and steel enterprises. One is the enterprise, and the other is the process as a whole boundary, so they are named the enterprise model and the process...

Harmonic diffractive optical elements(HDOEs) can make multiple-wavebands imaged on the same image plane, which have be widely used in the infrared imaging optical systems. The mathematical model of effects on diffraction efficiency and polychromatic integral diffraction efficiency(PIDE) caused by single...

The local community’s opinions play an essential role in conserving a historic area, such as historic streets because the existence of a historic street depends on the appreciation of the local community. People’s preferences will provide valuable consideration in conserving the heritage area. Therefore,...

In 2015, in The Guiding Idea on Rapidly Developing the Rural E-commerce, the General Office of the State Council pointed out: the rural e-commerce was the important method to transform the development way of agriculture and the important carrier of the targeted poverty alleviation. In 2016, the No. 1...

Biomechanics studies in dance can be used as a means to control health, fitness and training. The dance is always performed in the accompaniment of music. Then the combined benefits of the elements of motion and music sound are thought to produce a strengthening effect on the dancer’s physiological condition,...

Air quality is a critical factor in safeguarding public health and the environment, particularly in Batam Island, which is experiencing rapid growth in industry, population density, and transportation, leading to increased emissions of air pollutants such as Carbon Monoxide (CO) and particulate matter...

The existence of waste in a production line causes production equipment and production systems to be ineffective and inefficient. It’s the same with an SME that produces plastic straw products in a city in Indonesia. BNL50 machine that produces plactic straw, often experiences problems such as breakdowns...

This study offers a comprehensive overview of a range of mathematical methods designed to address uncertainties in engineering calculations and assesses their suitability. The focus is on fuzzy set theory, which has proven to be particularly effective and offers a robust solution package for modelling...

Indonesia faces two major challenges: the preservation of its food heritage—at risk of digital extinction with 5,350 traditional recipes—and growing public health issues such as diabetes, which increased from 6.9% to 10.9% between 2013 and 2018. Tools that support culturally relevant food tracking are...

The use of learning videos from the you-tube channel by students to increase learning understanding. Most of the learning videos available on YouTube have a length of more than five minutes. A lot of digital content has the potential to become a distraction or break the focus of learning such as notification...

This study aimed to determine the physicochemical properties and sensory perception of waffle instant premix added with mung bean flour. Mung bean flour was included as one of the ingredients, substituting wheat flour in varying proportions starting from 20 to 80%. The results showed that bulking density...

In community life, the availability of clean water has been decreasing with the decrease in water quality of community consumption. This is obtained from reality and surveys in several villages. Compared with the results of reports from the National Statistics Agency, the province is very volatile and...

The instability caused by global warming and the spatial complexity of land surface structures is increasingly affecting basin floods. The aggregated old Xin’anjiang model can no longer simulate precise land surface information, which in turn compromises flood simulation performance. This study selects...

As the use of 3D printing becomes more popular, the need to print in complex gravity environments or even low gravity environments is emerging. In order to meet these anti-gravity 3D printing needs, many individuals or organizations have proposed different solutions. This paper describes three mature...

Education serves as the cornerstone for life’s foundation due to its significant role in fostering change. It is considered a crucial process for achieving balance and perfection in individual and societal development. This balance ensures high-quality education. Effective dissemination of teaching materials...

The utilization of used tire rubber waste, particularly in the construction industry, becomes a critical issue in Indonesia due to its abundant presence and the challenges related to waste disposal. One solution to repurpose used tire rubber waste into a valuable resource, especially in the construction...

In the steep and steep single-sided rocky cliff area, the pipeline can be laid through by using the trenchless crossing method of raise boring, which will change the route selection ideas and principles of the domestic long-distance pipeline industry in the future. Only Saipan Company applied the raised...

Highway engineering projects face a complex financing risk environment due to their large construction scale, long financing cycle, and numerous influencing factors. This article takes PPP+EPC mode engineering projects as the research object, based on grounded theory and literature analysis method, a...

Information technology, as the fundamental technology driving innovation in internal production and management activities across various industries and fields, has emerged as an essential tool, particularly under the influence of China’s eco-friendly and green development concepts, to imbue these sectors...

An eco-friendly approach for the preparation of silver nanoparticles (AgNPs) from silver nitrate solution using aqueous Eriobotrya japonica seed extract was investigated. The reduction of silver ions in solution was monitored using UV-vis spectroscopy, and the surface plasmon resonance of AgNPs at 428...

2æm thick DLC multilayer films were deposited on W9 high-speed steel with deep cryogenic pre-treatment (DCT) for 30 hours in liquid nitrogen by unbalanced magnetron sputtering technique, which were compared with the DLC films without DCT. The results show that compound systems with DCT exhibit higher...

Microstructure evolution of dynamic recrystallization of AZ31 magnesium alloy during isothermal heating process was simulated by cellular automaton method (CA method). When heat holding time is constant, the grain size of AZ31 magnesium alloy increases significantly with the increase of heating temperature....

In this paper, a method for determining the parameters of the RHT material model, which can hardly be determined by total experiments, based on the combination of experiment and numerical simulation is proposed. The determination process and verification are analyzed taking UHMWPE fiber reinforced concrete...

As a new kind of environmental protection building material, premixed wet mortar possesses a wide application prospect. The technical difficulty is to maintain the workability of premixed wet mortar as long as construction required setting time by choosing suitable raw materials and mix proportion. In...

The purpose of this study was to develop a multiplex touchdown PCR to identify three waterborne pathogens in water samples. Specific primers based on VP1332, inv and ipaH gene sequences were designed for V. parahaemolyticus, Y. enterocolitca and Shigella, respectively. By optimizing reaction conditions,...

Current situation of priority hazardous chemicals for environmental management in Sichuan province is investigated by reference to 84 priority hazardous chemicals for environmental management specified in the Measures for the Environmental Management Registration of Hazardous Chemicals Registration (Trial)...

In order to improve student achievement level and management ability of college , we focus on to achive the university student achievement warning system. In the practical application of College Students' performance analysis, we find that there was imbalanced data,and the proportion of the students...

As a support network of the smart grid, the reliability of electric power communication network has become the prerequisites of the smart grid to become intelligent and economic, and operate safely. This paper mainly studies the vulnerability of the electric power communication network, so as to provide...

When the nuclear accident of equipment system happens, the right decision can be taken to reduce the consequences and harm of the accident. Considering the fuzziness and multi-objective of the nuclear emergency decision of equipment system accident and aiming at the deficiency of the traditional AHP...

In order to discuss the application scope of measurement of compaction degree of aeolian sand roadbed formed by compaction with immersion plus cutting ring method, powdery clay particles with different content are blended into the aeolian sand from the Gurbantunggut desert for testing. The results show...

For the modulation recognition of the wireless communication signal, when extracting Eigenvalues, it is necessary to improve modulation recognition rate in order to achieve the optimized effect. In this article, combination eigenvalue module of the signal is extracted by applying bee colony algorithm...

The electricity universal service is an important public welfare policy. In this paper, the general economic analysis framework of electric universal service is constructed, the necessity of monopoly supply and government regulation is demonstrated, and the attribute of electricity universal service...

Hydrocyclone separation technology as a kind of effective oil water separation technology, has been applied in the oil industry. The paper proposes numerical simulation of computational fluid dynamics which combine Reynolds stress model and Euler multi-phase model together, and discusses the operating...

In this paper, the load distribution of combination bearing in wellbore trajectory control tool has been carried out the theoretical study, it is concluded the response of combination bearing in pure radial & axial load bearing. Based on this study, the working state of combination bearing has been simulated...

In order to enhance the properties of SnAgCu lead-free solders, the Al nanoparticles was selected as the additives. The effects of Al nanoparticles on wettability and mechanical properties of solder and solder joints were studied. The results showed that a small amount of Al can enhance the wettability...

The airship modeling is the basic of the airship control problem, a class of simplified nonlinear model of pitching channel is studied in this paper. On the base of all above mentioned, the speed control is separated from the attitude control, and the speed is controlled by a simple constant control...

Because the doubly-fed wind turbine contains a large number of power electronic equipment, as well as the randomness and uncontrollability of wind power generation, the wind farm inputs a large amount of harmonics while inputting active power to the grid, which brings many adverse effects to the power...

The article presents a comparative analysis of the dynamics of geochemical indicators of natural and industrially transformed mid-mountain and high-mountain landscapes of the Western Caucasus. The high stability of geochemical processes for high-altitude geobotanical zones of subalpine and alpine meadows...

Trusted evidence collection is an important content in the study of the cloud platform trustworthiness. Trusted evidence index system and collection model should not only meet the description of cloud platform trusted evidence, but also solve the problems of model expansion by the massive evidence instance...

In the rocket active segment mission, the spacecraft and rocket separation orbit after the initial orbit number is an important basis to determine the success of rocket launchers. At present, there are many data sources that can be used to determine the number of initial orbits. However, it is preferable...

Electric measurement is a very important factory enterprise work, it is also the key for the energy measurement and product cost accounting. The quality management of electric energy metering device is a very important work and is also the key to electric power enterprises and users to establish a trust...

In the Complex service environment, the surface of coiled tubing has different degrees of defects, which can easily lead to the stress concentration on the surface of coiled tubing and cause premature fatigue failure of the tubing. In order to estimate the fatigue life of coiled tubing more accurately,...

Higher order thinking skills (HOTs) are needed by the students of chemistry education, because they will become teachers who will be teach HOTs for students. This research is research and development. this study has the aim to examine the feasibility of developing concept map learning models with inquiry...

Hyperspectral unmixing is an important technique for hyperspectral image analysis. In this paper, we took Airborne Visible Infrared Imaging Spectrometer (AVIRIS) hyperspectral imagery as dataset to monitor oil spills. The information of oil spills was retrieved through image preprocessing, minimum noise...

As to diagnose the circuit-breaker defect , we used to take the exit operation method, lacking of effective method for detecting the circuit-breaker operating state. Through the study of the two loop closing current, we found the corresponding relationship between two current and mechanical failure.When...

The Gangjiang No.2 Bridge is studied as the research object. The three-dimensional finite element bridge model is established with ANSYS 15.0 about static and dynamic characteristics of the bridge. The main girder and the main tower stress have enough safety storage, which can meet the specification...

At the moment, artificial intelligence and increasingly sophisticated algorithms have influenced our lives and civilizations more than ever. The fields of artificial intelligence applications are diverse, potentially far-reaching, and because of recent improvements in computer hardware, some artificial...

The system uses STM32F103 as the main control chip and measures the instantaneous acceleration and angle of the shot by controlling the MPU-6050.Our motion data by hardware to collect a large number of professional players of the instep shot. Based on this data set to train the CNN model we build. We...

Bamboo is a potential energy crop for the future and an attractive option to replace wood due to its fast growth, high productivity, and essential fuel characteristics such as low ash content, alkali index, and high heating value. This study aimed to evaluate the effects of torrefaction on the physical...

The need for bicycle transportation with strength and aesthetics as well as light weight is increasing, so it is necessary to innovate material technology to overcome these needs. The main components of a bicycle are the frame, wheels, handlebar, and pedals. In addition to the safety factor, what needs...

Presently, research focuses on the study of Corn Husk Fibers (CHF) and their composite, also on the fiber drawing process and some of the properties such as chemical, physical, and mechanical, moreover concentrating on biodegradable natural fibers. Corn husk is a Natural fiber that has gained much scope...

This study explores the mechanism and boundary conditions of employees using job crafting to cope with the impact of Artificial intelligence(AI) awareness based on the cognitive evaluation theory of stress and resource conservation theory. With 282 employees as the research subjects, the study found...

Chicken meat is one of the primary protein sources for the Indonesian market. However, due to the warm and humid climate, chicken meat is subject to microbial contamination, i.e., Escherichia coli dan Salmonella sp. The source of the contamination is the chicken gastrointestinal environment during rearing...

Since anomaly detection systems often need to handle large amounts of data, feature selection, which is an ef-fective method for reducing data complexity, is usually applied for anomaly detection. In this paper, an im-proved genetic algorithm based feature selection method is proposed to obtain optimal...

The flow refueling location model is adopted to describe the traffic network considering the shortest and the second shortest paths. Three objective functions of the electric vehicle charging sta-tion placement optimal model are defined to maximize the captured traffic flow, to minimize the in-vestment...

This study was conducted to select a type of macroporous resin most suitable for the separation and purification of tomato saponins. The content of esculeoside A which is the major part of total tomato saponins was detected by colorimetry, and extraction rate of esculeoside A was used as an indicator...

Gas well bottom-hole flowing pressure is an important parameter in gas reservoir geological research and evaluation, reserves calculation, evaluation of capacity calculation and dynamic analysis. So, get accurate bottom-hole flowing pressure has significant importance to the production. Through the production...

In this paper, the (G'/G)-expansion method is applied to find the exact solutions for Sine-Gordon equation, Sinh-Gordon equation and Liouville equaiton. The (G'/G)-expansion method is an effective method in investigating exact traveling wave solutions to nonlinear evolution equations (NLEEs) in the field...

Nanotechnology is the rapid developing. The nanotechnology in battery materials can enhance the storage capacity of a battery, reduce swelling and loss of the battery and improve use efficiency, which is of positive significance for the electrical equipment. Based on the analysis of current development...

The bearing capacity of concrete beam can be improved considerably by FRP reinforcement. The engineering cases show that using FRP materials reinforce a balcony cantilever, and it can improve the concrete structure bearing capacity, and can prolong the service life in a certain extent, and can reduce...

Aiming at the demerits of STL data, a visualization algorithm of STL model is presented. Valid data consisting the vertexes and normal vector of triangular facet were separated out from STL file. The sequential file was used to save the valid data, in order to avoid excessive use of memory. The algorithm...

This paper start to mine the four root causes of vandalism generating in landscape environment from four angles including the designers, constructor, users and environment; and then through analyzing and sorting, collate the specific form of vandalism grouped into five areas; at last, based on the five...

Increasingly, heat flux density on one chip reached to 1KW/cm2 with the development of integration technology. However, it is hardly to meet the demand of 417K for conventional cooling way. Chip cooling become the bottleneck of integration further. This paper put forward that integrated micro channel...

this paper mainly introduces the harm of road and bridge pavement and subgrade settlement,expounds the causes of uneven pavement and subgrade settlement on the settlement road and bridge,analyzes the structure design of settlement road and bridge and finally discusses the construction technology for...

A new mine transient electromagnetic method based on U-shape spiral source is proposed. Firstly, the method is introduced. The character of new system is based on a U-shape spiral source which is made up of a U-shape support and the spiral power wire. Furthermore, we analyze the potential advantages...

Computational Fluid Dynamics (CFD) is of great importance for R&D of Large 2-Stroke Marine Diesel Engine. The CFD software ANSYS FLUENT was adopted to calculate the scavenging process of a large 2-stroke marine diesel engine MAN B&W S60MC-C6 and the obtained pressure trace was compared with the shop...

The paper provides a brief summary of costs necessary to obtain nanosized magnesian powders when utilizing amorphous magnesite by-products. It also describes new methods accounting and allocation of common costs among products when processing and utilizing amorphous magnesite by-products in dynamic market...

With the rapid development of computer technology and internet, streaming media technology is widely used in video broadcast, video on demand, distance education and other fields. But the traditional C/S architecture service model is often in the case of massive users easily lead to bandwidth bottlenecks...

With the rising of Chinese labor costs, industrial robots as a new type of labor force, is quietly changing employment pattern of China's manufacturing industry. This article first introduced the current development of industrial robots at home and abroad, summed up the current situation of China's industrial...

This paper introduced the advantages about the application of high water material in the filling mining under the combination of its actual situation of coal mine. These advantages included the fluidity, expansibility, strength of backfilling, initial investment of high water material and so on. The...

A three-dimensional computational fluid dynamics model coupled with chemical kinetics mechanism was established and validated on an actual biogas fuelled engine. Arc and kernel tracking ignition model and coherent flame combustion model were implemented and applied to capture in-cylinder ignition and...

In order to compare the value of several features involving leaf retrieval, we design an approach to evaluate 37 features about leaf’s contour, content and texture. Random forest algorithm is employed to rank these features’ contribution to leaf categorization. To forming the optimum features combination,...