Advances in Engineering Research

In press-pack IGBT the currents flowing through paralleled chips are not consistent due to the packaging structure, chip difference, uneven stress distribution and so on. The maximum current overshoot and maximum junction temperature of the internal paralleled chips determine the limitation of the device's...

In order to research surrounding rock control technology of roadway excavated in residual coal pillar, this article took excavation roadway in coal pillar that was between the two parallel empty roadways as the research background , used field investigation, theoretical analysis and calculation, similar...

The prediction formula of F2 (0.004) relies on inverse fuzzy numbers, the difference of historical data and the differential-difference of the historical data. F2 (0.004) is a fuzzy time-series forecasting model. This paper reports the application of F2 (0.004) on forecasting research about the historical...

Flipped Classroom teaching model re-plans the learning time, reversing the process of knowledge transfer and knowledge internalization, creating a new communication mechanism conducive to the interaction between teachers and students, students and students, which has created a new possibility for the...

In this paper, a boundary control-based algorithm Binary Quantum Particle Swarm Optimization (BQPSO) that considers quantum particle swarm with Delta potential well was used to determine otsu threshold. In the optimization, particles moved in the Delta potential well with the best position POPSIZE as...

Spheroidizing treatment is an important step in the production of ductile iron, in this paper, with the different amount of nodulizer, the morphology and composition of inclusions in molten iron, spheroidized samples and test blocks were studied by scanning electron microscopy (SEM) and energy dispersive...

Assessment of learners in the MOOCs online learning platform creates problems for teachers in using appropriate assessment strategies. The change from the traditional face-to-face learning model to the MOOCs online learning model does not necessarily apply traditional classroom assessment strategies...

This paper develops digital models that can be used to build cyber-physical railway power supply systems (RPSS). We employed methods of modeling that were developed at the Irkutsk State Transport University. These methods, implemented in the Fazonord industrial software package and are based on the use...

During the pandemic, various cities in Indonesia experienced an increasing trend of growing ornamental plants in various circles, and not a few were using ornamental plants to increase their income, but difficulties in reaching market segmentation caused the ornamental plant business to develop a little...

Ulaanbaatar is one of the most polluted cities in the world, especially in wintertime. During the past two decades, several national and internationally funded projects have been put in place to reduce air pollution. One of the implemented projects is the Government of Mongolia has decided to substitute...

This research investigates the integration of Augmented Reality (AR) and Internet of Things (IoT) technologies in teaching three-dimensional (3D) geometry to lower secondary students in Malaysia. By combining interactive AR features with real-time data from temperature sensors, the research aimed to...

This paper presents a free-hand gesture-based human computer interfacing system for developing a learning aid tool in a virtual reality environment. A device known as the leap motion controller, which tracks hand movements optically, is used for hand interaction. Various virtual objects are created using...

Deep learning constitutes an ongoing, modern technique for image processing and data analysis, with promising outcomes and enormous potential. As deep learning has been effectively applied in different domains, it has likewise entered the area of agriculture. Weed control is important for high quality...

In coastal areas, hydraulic projects often involve deep silty soil foundations, drawing attention to the selection of cofferdam support structures at such project sites. The commonly used cofferdam structure for such sites is the double-row steel sheet pile cofferdam. However, this type of cofferdam...

The large enamel-assembled storage silo, as an emerging industry, is currently in a period of rapid development. Its unique bolted construction technology and excellent enamel anti-corrosion technology have led to the gradual application of enamel-assembled silos in areas such as military storage, strategic...

Green Beans (Vigna radiata L.) produced by Indonesia is one of the export commodities that are favored by the international market. Green beans have a high protein content and provide many health benefits. Therefore, the growth of mung beans is something that we want to observe in this study. This study...

Currently, most finite element analysis applications are relatively weak at modeling, resulting in finite element analyses of complex structural systems being trivial and troublesome. On the other hand, though computer-aided design (CAD) applications are powerful at modeling, models built in CAD applications...

In this paper, we describe the work on measuring flow distribution down-stream of a 90 elbow, and on improving the flow to satisfy installation of a flow meter. In the sudden changed flow channel, flow velocity distribution is very irregular. Both asymmetry and swirl exist, which cause severe error in...

Underground structure cracking and damage caused by anti - float underground space project, which is a hot and difficult problem in the engineering of recent years. This paper is aimed the accident of the floated basement floor, column, beam, and wall cracking due to the precipitation, at the basement...

Phytoplankton community structure and environmental factors of Jiaolai Estuary and adjacent waters in Laizhou Bay were investigated in October, 2015. Affected by high-concentration salt-containing wastewater discharged in east coasts, the water quality of investigated waters showed a trend of high salinization....

According to vibration characteristics of highway bridge-vehicle coupling, taking a simple supported beam bridge as an example, the scale model test system of vehicle-bridge coupling vibration has been designed and manufactured, including model testing bridge, testing vehicle, traction, braking, limiting...

X-ray energy dispersive spectrometer (EDS) and X-ray diffraction (XRD) tests are performed to investigate the chemical composition of Hangzhou soft clay. For comparison purposes, the above two tests are carried out on Hangzhou stiff clay. Based on EDS results, sulfur(S) can't be found in Hangzhou stiff...

The thermal density current is researched in different incoming flow depth based on numerical simulation and find there will form a plumping thermal density current if the temperature of incoming flow is lower than the environmental water temperature in the reservoir; the incoming depth has little effect...

Polytetrafluoroethylene fiber is one of the most commonly used raw materials in industry. At present, there are there the popular manufacturing methods of polytetrafluoroethylene fiber, which are carrier spinning method, extrusion spinning method and membrane spinning method. The paper elaborates the...

In this study, the AISI410 martensitic stainless steel was treated by plasma nitriding at different temperature, different time and different gas proportion. Then the hardness and microstructure were studied by a variety of analytical techniques. The results show that the hardness of nitrided layer decreases...

In the present study, the special interface element has been derived. And that develop three-dimensional nonlinear finite element model depicting the global behavior for RC structure strengthened by steel plates up to failure. The interface element captures not only the shear and normal stress concentration,...

The finishing force acting on workpiece surface generated by magnetic cluster is an important factor which affects cutting behavior of abrasives in magnetic abrasive finishing (MAF). In this study, we measured finishing force in alternating magnetic field and direct magnetic field, respectively. Experimental...

M31 block of sandstone reservoirs, with strong heterogeneity and poor physical property, belongs to ultra-low permeability reservoirs, and the reservoir permeability is around 9mD. The clay mineral content exceeds 5%, and the daily water capacity can't meet the requirements of injection allocation. Reservoir...

Indoor thermal environment of a hyperbaric oxygen chamber was researched by computational fluid dynamics to figure out the relationship between the inlet angle with thermal sensation index. Steady k- turbulence model and incompressible fluid flow of constant property have been considered, the heat dissipation...

This paper discusses the mechanical stability of rock slope with 3D geonet protection system.A damaged 3D geomat slope model under seismic load and seepage condition is established. The paper studies the effect of rainwater infiltration and seismic load to the stability of 3D geomat slope surface in...

With the development of science and technology, the science and technology used in military investigation and surveying and mapping are becoming more and more advanced, and small reconnaissance UAV gradually walked into people's lives. This paper mainly aimed at the improved design of the existing reconnaissance...

Outlet structures were apt to occur cavitation damages with high speed flow, and aerators were usually adopted to reduce and eliminate cavitation damages in hydropower project. In this paper, the Realizable k- model and the Volume of Fluid method were used to simulate the characteristics of cavitation...

In order to research feasibility of high strength concrete applied to the main factory building frame and framed bent structure of large-scale firepower plant, based on the experimental research of 6 reinforced high strength frame slender columns under frequency cyclic loading, the failure shape and...

Schisanda Chinensis Baill is one of the most commonly used in Chinese folk medicine, it belongs to the magnoliaceae plants, named Chinese prickly ash, its medicinal part is fruit and traditional Chinese medical theory have already implicated that its acid, sweet, warm, lungs, heart, kidney, with fluid...

In order to improve peanut sheller’s shelling and cleaning efficiency, this thesis chooses the scraper shelling device on the basis of studying other peanut shellers. And it also determines the overall scheme design of sheller and introduces the scraper structure and working principle of the peanut sheller....

A facile hydrothermal method was successful to synthesize the TiO2 by using unique bacterial cellulose (BC) membranes as natural biotemplates. The three-dimensional networks of BC fibers coated with TiO2 nanoparticles can be clearly observed, resulting in the formation of uniform and well-defined hybrid...

With today's rapidly aging society, there is concern about optimizing designs for elderly consumers. In this research, we perform Spearman's rank correlation coefficient analysis to study the colour satisfaction rate for smartphone interface icons and to determine whether there is a correlation with...

In this paper, we study how Probability theory and mathematical statistics courses combined with the professional course in application oriented university of economic management specialty. According to the relationship between probability and statistics courses and the professional course, The economic...

Working principles, characteristic parameters and adjustment of gas proportional valve are introduced in the paper. Performance parameters of gas proportional valve can be tested through gas proportional valve monitoring and control system. Test data are processed and analyzed, characteristic curve graph...

Recent trend analyses have indicated the spatial variations of vegetation dynamic in South China Karst region, such as growth in west and southwest, degradation in northwest and southeast. Whether the factories lead to vegetation degradation would be identical to the factories lead to growth was investigated...

Kampong Magersari, a cultural heritage site, situated in the Sunanate Palace area in Surakarta City, is unique because of its physical, economical and socio-cultural hereditary potency. These qualities, though located in a conflict area in which there is no single and legitimate authority, can endure...

Material removal rate (MRR) during the chemical mechanical polishing (CMP) process affects the control of product quality. Complexity of various parameters makes it challenging to predict MRR accurately. We addressed this challenge by integrating physics-based modeling with data-driven statistics. First,...

The steam pipe network is a complex object to be modelled and monitored with traditional mathematical model. In this paper, the mathematical model of single steam pipe is analyzed and an innovated data-drive modelling method with piecewise performed principal analysis (PCA) is proposed. In this method,...

The Precambrian terrain of the Sonapahar area is characterised by the presence of a thin, long, discontinuous band of quartz-sillimanite schist which hosts the massive sillimanite-corundum deposits. The quartz sillimanite schists are generally siliceous, SiO2 (60.59-76.82 wt %) and are characterized...

As the size, shape and function of construction projects are becoming complex, building system designs are more challenging. The traditional building system design pattern has been unable to meet the current requirement of the overall design of the building. For designers by conventional two-dimensional...

The purpose of this research are to know the influence of learning models (PDEODE and 5M) and critical thinking skills on students’ chemical literacy. The population of the research were students of State Senior High School 5 Jakarta. The research instrument used are critical thinking test and chemical...

Gearbox is a critical component of mechanical equipment. Centralized fault and distributed fault are the two typical faults of gearbox. Both faults have their own features. In order to know them better, the characteristics in the time and frequency domain of the vibration signal were analyzed in detail....

Based on the effect of variation of dissolved oxygen on the oxygen uptake rate (our), To study the effect of Cr6+ on the performance of activated sludge under different factors (concentration, MLSS, HRT, temperature, pH) by using activated sludge own activity. It has certain reference significance for...

A high precision water capacitance measuring system is designed by using a water capacitive sensor, which carries on non-contact measurement in a single electric cable in water. System's fundamental and electric data processing methods have been illustrated through the analysis of object's features....

With the development of mobile Internet technology, computer control technology for the further development and improvement of the foundation, in people's daily life and industrial production in all areas have been applied to the computer control technology to achieve automation control, and the development...

Software Testing is a formal process of checking whether a system or a product complies with the consumers need and requirement. It is mainly done by a dedicated testing team using different tools and techniques and the main intention is to identify deviations in the software product and to ensure quality....

To overcome the problems of low accuracy and poor stability brought by the complexity of scenarios, an indoor localization method of image matching based on Deep Learning is proposed. The method includes taking images of indoor surroundings with cameras of mobile devices, setting up a dataset of images...

IHCM (Indonesia Highway Capacity Manual) was issued and came into force in 1997. After 20 years there has been a change in traffic from the number and composition, as well as the traffic regulation policy. As a result of this, the determination of IHCM’s road capacity is often incorrect. Therefore it...

Co-firing technology is an essential part of reaching 23% EBT in 2025, where Coal-fired power plant still dominates Indonesian power plant situation. On the other hand, the use of biomass co-firing increases the risk of slagging fouling. An effort to reduce the risk is a test with DTF on a temperature...

The current global issue of climate change and global warming has triggered increased attention from academics worldwide, leading to research efforts aimed at making carbon information easily accessible to people worldwide. The objective of this study is to estimate the potential carbon sequestration...

With the development of science and technology and the progress of society, the electric power industry is gradually changing to the direction of intelligence and automation. In this process, a large amount of power data is generated and processed and analyzed. The data includes not only real-time data...

Endpost is a component that separates two connected rails to prevent a short circuit in the rail line. The purpose of the research was to improve the mechanical properties of the endpost in terms of pressure and the value of electrical insulation. The study used an experimental approach, aiming to determine...

The molten salt synthesis has been known as an eco-friendly synthesis method because it does not produce hazardous waste and also, there is no requirement for a high calcination temperature. In this research, we synthesized SrBi4Ti3.95Fe0.05O15 photocatalytic material via the molten salt method using...

Digital transformation in higher education requires integrated information systems that can support institutional quality assurance through timely and consistent information. This study develops an integrated executive dashboard within the PPMPP Portal of Politeknik Negeri Bali to address data fragmentation...

Biodiesel, Minyak Nyamplung, Enzim Lipase Amobil, Packed Bed Biodiesel is a type of fuel made from a mixture of mono-alkyl esters of long-chain fatty acids. It is used as an alternative to diesel fuel and is produced from renewable sources such as vegetable oil or animal fat. The biodiesel production...

Electric vehicle power battery charging can reach 100% full, which greatly affected the battery service life. A photovoltaic battery of electric vehicle charging device are studied in this paper. The device can for battery leader time trickle current charging, through part of battery energy, can make...

Laser surface melting(LSM) was performed on the inner wall of N80 oil tubing by the spiral mode. The results show that the microstructure of N80 oil tubing consists of zonal pearlite and ferrite. After LSM, the cross section was divided into the melted zone composed of martensite transformation hardening...

In order to satisfy the validity demand of quasi-dimensional combustion model for predicting diesel engine performance, a new phase-divided spray mixing model is proposed in this work. The software MATLAB/Simulink is utilized to build the quasi-dimensional combustion model of diesel engine working process,...

Pilot-scale constructed wetlands planted the reed was constructed to treat papermaking water. The treatment performances of the three wetlands with different operation model for COD, ammonia nitrogen, total phosphorous, BOD5 were investigated. The results show that the removal efficiency of all kinds...

A ethyl cyclohexanyloxy azobenzoic acid molecule constructed by liquid crystalline structure was synthesized as a sample in this paper. The compound was a multi-functional molecule with liquid crystalline and photo-sensitive properties. The recognition of some divalent metallic ions such as Fe2+, Mn2+,...

This paper studies the modified hybrid projective synchronization of fractional order chaotic systems, which generalizes many various synchronization forms. We firstly present this kind synchronization that the response and drive systems have scaling factors at the same time. In addition, based on the...

This study explores the creep behaviors of schist in different water contents and establish the creep model and its constitutive equations. Firstly, the time-dependent deformation regularity of surrounding rock was studied based on the sericite schist tunnel construction in northwest area of Hubei Province...

This paper proposes a dynamic phasors model of HVDC systems including the converter, DC line and control when the AC systems are symmetrical and analyses the simulation process of the proposed dynamic phasors model. The proposed dynamic phasors model can rapidly reflect the dynamic characteristics of...

The revolution in social production technology in Internet era has brought increasingly important influence. This paper analyzes the automatic discovery and topology rendering of network device, which are important target technology in the current and future network device development and application...

The mesoporous -alumina supported nickel oxides with different Ni/Al molar ratios (x = 0.05, 0.10, 0.125, 0.25, 0.50) have been prepared by a simple partial hydrolysis of aqueous solution of Al(NO3)3 and Ni(NO3)2 with (NH4)2CO3 without templates or organic surfactants at low calcination temperature of...

This paper discusses the factors Enzymatic Extraction barley polysaccharides investigate the effect of hydrolysis time, hydrolysis temperature, enzyme dosage, solid-liquid ratio and pH value of the five factors of barley polysaccharide extraction rate, the results show : with the increase of hydrolysis...

Bioleaching experiment was carried out in 80L SBR reactor with sewage sludge collected from each treatment step of the wastewater treatment plant (WWTP) system, to investigate the transformation of heavy metals during bioleaching. The corresponding changes in pH, oxidation-reduction potential (ORP) and...

In view of the influence of grounding capacitance to low frequency signal injection method, a new detection technology is proposed based on DC bus to grounding capacitance. This method does not affect the normal operation of DC power system. The insulation monitoring devices for DC power system is designed....

The structural properties of automobile door have important influence on the safety and reliability of the vehicle. In order to obtain the actual working vibration characteristics of vehicle door, firstly, according to the complex condition, sensors arrangement scheme was determined based on the vibration...

The difficulty in solving the shallow water equation lies in treating the advection terms. Therefore numerical simulation of advection term is the key to the numerical simulation of shallow water equation. In this paper, original CIP method, CIP-CSL2 method, CIP-CLSR1 method and first-order unwind scheme...

Drink-driving, alone traffic police department regulation is not enough. Only taking the necessary scientific and technological means, drink-driving illegal behavior can be effectively controlled. In this paper, first, we established the detection of drink-driving behavior model of BP neural network;...

In theory, graphics processing units largely exceed central processing units by the degree of performance. But in order to load the GPU with computing tasks to the boundary levels of its maximum performance, the task has to be divided into streams. The number of streams should be comparable to or, to...

This research aimed to determine the gender profiles in cultivation and post-harvest of cassava farming. The location of the study was chosen based on cassava planting area in each district, namely the largest (Saptosari), medium (Tanjungsari), smallest (Purwosari), using descriptive analysis research...

The article presents the results of bench tests of the diesel engine D-240. To increase the power of the engine, the authors propose using humidification. The optimal cyclic water delivery equal to 17.452±0.87 mg/cycle was obtained. The authors have achieved: an increase in the effective power of the...

The authors have investigated the process of asbestos-cement dust slippage past dust collectors with countercurrent swirling flows. They took into account the mass rate of dust getting to the working zone air, the total gas flow rate, the length of the lower inlet branch duct, the conditional relative...

A new watermarking algorithm based on NSCT_DCT is proposed to improve the robustness of digital watermarking. This algorithm performs L-level NSCT transformation on the image which requires to be embedded watermark, and DCT transforms the low frequency band. The DCT coefficients are chosen as the feature...

The Contour tracing method can automate extraction of tidal datum referenced shorelines from light detection and ranging ( LiDAR) data. With this method, shorelines are derived easily, but they are too broken, meandering and trembly. So an improved contour tracing method is put forward in this paper....

In the digital age, the literature structure and service mode of the university library are changing rapidly. The proportion of the digital literature in the library collection system of the universities is constantly increasing. Therefore, how to coordinate the order of the paper and digital resources...

In order to prevent the maloperation of the transformer differential protection device affected by transformer magnetizing inrush current and internal short circuit fault current, the device should be able to identify the internal fault current and inrush current. Accordingly, this paper is aimed at...

The current recycled concrete is mainly poured by directly taking construction waste after being crushed by classification, cleaned, and gradated as fine and coarse aggregate. The waste is not used according to the classifications of different strength, but is mixed and used uniformly. The impact of...

Understanding concepts related to the process for determining the design of protection settings requires practical experience, which can be achieved by repeated trials. The objective of this research has described the design and implementation of a hardware simulator for understanding concepts phase...

The Palima – Baros road section as a connecting road between Serang City and Pandeglang Regency has a fairly high traffic flow, as can be seen from the density of the road during morning and afternoon rush hours and weekends. Congestion often occurs on roads that have a surface layer in the form of flexible...

The insurance landscape for construction companies in Ghana, particularly in the Accra Metropolis, plays important role in mitigating risks and ensuring project success. Considering the significant contribution of the Ghana’s construction industry to the GDP and overall economic growth, effective insurance...

Rapid urban population growth in developing countries has significantly impacted environmental noise levels. In hospitals, located near busy roads, excessive background noise is a major concern for both patients and staff. Road traffic noise has significant negative effects on human health, particularly...

The National Railway Master Plan estimated that the potential for freight transport in Java Island in 2030 will reach 534 million tons/year. Therefore, the government is planning to develop a double-track railway line between Surabaya Pasar Turi-Kalimas/Tanjung Perak. This research aimed to add a new...

The operation of gas storage reservoir is characterized by alternating loads and cyclic reciprocation, which puts the tubular column in a complex stress state for a long time. At the same time, the corrosive environment downhole also threatens the service life of the tubing column, and it is of great...

One way to improve the quality of laboratory services in the era of the Fourth Industrial Revolution is by utilizing information and communication technology, referred to in this research as digitization. The use of this website will make it easier for students to quickly and easily access the necessary...

This study set out to explore and understand the mud properties, particularly from Puger Port in Jember Regency. The focus is on both its chemical makeup and physical characteristics, especially the rock powder present in the samples. Through the analysis, researchers aim to uncover variations in mineral...

Parkinson’s disease (PD) must be accurately diagnosed in the early stages. In PD, the premotor stage should be closely observed. We designed a smart glove for tremor detection, to detect whether a person is affected by Parkinson’s disease or not. To detect the tremors, an accelerometer and vibration...

In a wind turbine, the blade is a key component that functions to capture wind energy. Wind turbine blades have the ability to convert kinetic energy into force due to their curved shape, known as an airfoil. Design modifications, such as adding components like a gurney flap to the airfoil, can increase...

Artificial Intelligence (AI) is rapidly transforming medical technology. By analyzing vast datasets, AI enhances diagnostic accuracy, optimizes treat-ment plans, and accelerates drug discovery. It also improves patient care through remote monitoring and personalized medicine. Nowadays, human body structure...

River hydrometric surveys with Internet of Things (IoT) technology can be conducted using water level sensors equipped with LoRa communication capabilities. The sensors are placed in strategic locations along the river and measure the water level periodically. The data is then transmitted using LoRa...

In order to improve tunnel in long, narrow tunnel environment flexible robot control and autonomous obstacle avoidance ability, designed the control platform based on ARM, more modular sensor fusion, through WIFI communications and figure and raspberry pie auxiliary control system in the field of image...

In view of principle greening the basic design of the road in China, introducing the advanced concept of forest carbon sequestration, combined with afforestation project of carbon measurement and monitoring guidelines, to establish the quantitative and monitoring model of highway plant carbon sink. In...

Applied principal components analysis(PCA) to assess the water quality of Tongjiyan River in 2014, based on monitoring data of 8 indicators, such as CODMn, NH3-N, DO, etc.. As PCA could not classify water samples according to their water quality, a PCA based water quality classification method, which...