Advances in Engineering Research

The paper analyzes two kinds of driving mode of piezoelectric injectors ccording to the characteristics of the piezoelectric actuator, then compares the advantages and disadvantages of the fixed duty cycle PWM switching type, variable duty cycle PWM switching and driver-based adaptive current PWM switching...

The governing equation of pipe conveying fluid was deduced based on Timoshenko beam model. Wave method was applied to solve the governing equation. In the process, wave reflection matrices were obtained for three typical boundary conditions and the wave scattering model was established for the intermediate...

The article applies to the necessity of organizing continuous ecological education of specialists of railway enterprises and students of transport universities in the field of environmental management and auditing. The article presents the results of training and the survey of pilot advanced training...

the rapid advancement of technology in the field of industry is changing the construction world, and it comes in different forms, one of which is digital fabrication technology. As the technology of fabrication process that is aided by computer, such as 3d printing and CNC machines, becoming more affordable...

The Kayutangan Street Corridor is a historical area where there are still found historical buildings of the Dutch East Indies that form the distinctive character of Malang City. In 2019, the Mayor of Malang planned to revitalize the Kayutangan area with a Citywalk concept such as found on Jl. Malioboro...

Physiology is an experimental science, all of its knowledge comes from clinical practice and experimental research. In the teaching of physiology, in addition to theoretical teaching, the key chapters and key contents will be set with corresponding experimental contents to deepen students’ understanding...

Fatigue strength is one of the core principles for designing mechanical components. It has been a constant concern for engineers, as mechanical failure occurs due to loading exceeding the fatigue strength. This concern has led to a necessity to develop new approaches to estimate the reliability of mechanical...

Leaching investigations using deep eutectic solvents (DES) have been carried out to investigate the feasibility of an ionometallurgical approach to processing copper concentrates. The concentrate under investigation consisted mainly of chalcopyrite, pyrite, bornite, quartz, molybdenite, and trace amounts...

Balai Yasa (BY) is a place used for major maintenance of railway facilities. This is where the Railway facilities receive semi final maintenance (SPA), final maintenance (PA) to modifications. Some parts of the facility are being maintained, such as the bogie frame, braking, upper frame, electricity...

The vulnerability of switching substations to temperature and humidity levels inspired an IIoT-based security monitoring system to prevent fire hazards due to short-circuit electricity. An industry-standard security monitoring system is designed using PLC, HMI, and SHT20 - XYMD20 sensor module, which...

This study examines efforts to reduce fuel oil (BBM) consumption through dieselization reduction (dedieselisasi) in Diesel Power Plants (PLTD), which are commonly used in remote areas and isolated power systems. The study evaluates the optimal configuration of a Hybrid Power Plant (PLTH) on Tabuan Island...

To address the problems caused by the new energy overhead electrified highway, such as reduced normal driving lanes, susceptibility to extreme weather conditions, and inapplicability in inner cities, this paper takes Kunming, Yunnan Province as an example. This study examines three different tunnel structures:...

Application of low alloy steel in the wood processing in pulp and p per mills is widely used due to its strength and ease of forming. However, Low wear resistance due to friction makes the service life short and thus uneconomical. Increasing the wear resistance of the surface by hard-facing is an attractive...

Leakage is a typical accident of long-distance pipeline and an important cause of other accidents. Various factors that may cause pipeline leakage during the operation of product oil pipeline are analyzed, and the fault tree model of long-distance pipeline leakage accident is established. Through the...

Applications for Electric Vehicles (EVs) and portable electronics heavily rely on multiport converters. The only converter utilized for both energy production and consumption is the DC-DC converter. Different input and output configurations, such as single or multiple input and output, are available...

This study investigates torrefaction as a biomass valorization approach and its potential to offer green solutions, and studies Prosopis mesquite, an invasive species that has caused ecological and socio-economic problems in Botswana. The reason torrefaction is considered good is because it can turn...

AnalysisDelay in Housing Development is an activity that aims to build a facility and infrastructure within the planned time provisions but in the implementation stage it cannot be completed within the agreed time, therefore the author conducts research using the Faul (Tree Analysis) FTA method which...

The N80 steel corrosion behavior of the produced water in Huabei oil field on behalf of NaCl/ NaHCO3 solution were studied by the corrosion weight loss method,and the fitted chart board involved salinity and anion content was built based on the least squares principle. Results show that influenced by...

This paper focuses on studying the problem of train-speed curve in railway transportation system. Different from the previous study, the characteristic of this paper is to optimize the train-speed curve by selecting the gear sequence and the switching locations. In the case of multi-vehicle cooperation,...

API hydrological model is common used on streamflow forecasting for its' simple structure and robust ability on acquiring high precision forecasting results. But for a long time, parameter calibration has been the major difficulty for the use of API hydrological model. API model develops from the empirical...

In this paper, the present situation of roof waterproof technology was discussed and the working principle and failure reasons of roof waterproof system were analyzed. Combined with the actual high-rise building project, the key technologies of roof waterproofing design and construction have been discussed...

The method to analyze the dynamic characteristics of the inter-shaft bearing in the dual rotor system is presented. Under different radial loads, the distributions of minimum oil film thicknesses and contact loads between rollers and raceways are obtained. The results show that the rollers' spinning...

Pnicogen bond is a Lewis acid-Lewis base intermolecular noncovalent attractive interaction in which a pnicogen atom (N, P, or As) is the Lewis acid. It has been known since 2011. In this paper, the topological properties of the particular set of pnicogen bond complexes formed with formaldehyde (HCHO)...

In order to study the distribution of stress-strain of bending and springback process, based on the platform of ABAQUS code, a 3D elastic plastic model of the whole NC bending process of 21-6-9 (0Cr21Ni6Mn9N) stainless steel tube was established, and its reliability was validated. Then, the distribution...

With the development of Chinese washing and industry, the problem of large amount of energy consumption and exceed the discharge standard of sewage cannot be ignored. The development of washing industry is not mature. It leads to energy waste and environmental destruction. Under the macro environment...

Constructivism is a new cognitive theory which emphasizes on the student-centered teaching methodology, pay attention to the students' active exploration, discovery on knowledge and active construction on the knowledge meaning. Constructivism learning theory is very adapt to the special teaching needs...

In order to avoid the vessel deformation affected the safety of the system caused by the wave load. Using the AQWA software to calculate the wave hydrodynamic pressure and using the APDL language to compile the program loading implement wave loads on hull automatically different wave high, researching...

In the measurement of G using time-of-swing method, the accurate determination of G depends on the period extraction of torsion balance with high precision. There are a great many methods of extracting period, and the nonlinear least squares fitting method and the correlation method are most frequently...

The previous person thought that the M163-1 aeromagnetic anomaly is caused by the concealed and magnetite content alteration gabbro, but through the study of regional gravity, magnetic data and geological data,we thought M163-1 aeromagnetic anomaly has the larger mineralization potential., which compare...

Photovoltaic power generation because of the advantages of no noise, no pollution characteristics, but also has wide application in the military field, this paper first reviews the current photovoltaic power generation applications in public military facilities, military soldier equipment, small military...

This paper describes an integrated design approach, which aims to interpenetrate and reconstruct the boundaries of architectural design and structural engineering. There are four relevant experiments involved in this paper. The specific design strategies varies in this four practical projects: the first...

Solid acid S2O2-8/TiO2-La2O3 (STL) was prepared by calcination at high temperature using complex oxide of TiO2 doped La2O3 as the supporter, and anion S2O2-8 as the accelerant. The catalytic synthesis of n-butyl propanoate over STL was selected as the probe reaction to examine its catalytic esterification...

The paper introduces three different ways to generate pseudo random number of multinomial distribution and also describes the implementation process in detail with the model of small ball and box. We mainly consider the generation using Gibbs sampling in MCMC method. In the paper, we intend to find the...

Vibration of welding robot mechanism is an important factor affecting the welding quality. In this paper, a modal test scheme is designed depending on the characteristics of the modal change caused by the posture change during the welding robot operation. In the modal test scheme, the posture used for...

By analyzing the working environment and mode of manipulator, the structure of manipulator was designed, which has four shafts, the upper and lower shaft, the shaft of rotation, the telescopic shaft, and the rotation shaft. The main structure of manipulator was divided into three parts, which are the...

PT. FGH is a manufacturing industry engaged in the processing of wood from raw materials to semi-finished or directly into finished materials. The products produced are products of tables, chairs, cabinets and wooden doors. In its production the physical environment will affect humans in the work. Temperature...

Simplified reasonably and modeled large scale desulfurization tower, using the software to build a physical model, using ICEM software to divide the grid, using software fluent15 to simulate. Selected k-? model as calculating model, SIMPLE algorithm is used to calculate. Calculation results show that...

Innovation of concrete technology becomes important for conserving energy, according to the building’s structural design’s weight. Thus, lightweight concrete can be a solution because it has a low density with good quality and optimum strength. One substitute for concrete is plastic, a polymer material...

This study aims to compare student learning outcomes using two different tasks in the Project Based Learning (PBL) learning model in a wooden structure course 1. The research method used is Quasi Experiment with pretest-posttest design conducted in 4 meetings. The subjects of this study were 36 UNJ Civil...

Ammonium ion is an common pollutant which exist in municipal sewage, fertilizer plant discharge and agriculture wastewater. This study aims to investigate the potential of carbon black (from pyrolysis of tire waste) and modified carbon black on the adsorption of ammonium ion in aqueous solution. The...

One of the activities carried out by every human being in fulfilling needs is by shopping. Shopping is commonplace in everyday life. However, for people who have very busy activities, shopping becomes a troublesome and time-consuming activity. The objectives of this study are (1) identifying media that...

Nowadays, various technologies have been developed to facilitate human tasks or activities, such as the use of volatile organic compounds (VOCs). VOCs are a diverse group of chemical compounds emitted as gases from various sources, including industrial processes, vehicle emissions, and household products....

This study aims to obtain a suitable tempering time for ductile cast iron on microstructure, hardness, and toughness. The investigated ductile cast iron Y-block contains a carbon content of 3.45 wt%, silicon 2.6 wt%, manganese 0.635 wt.%, chromium 0.275 wt.%, nickel 1.58 wt.%, molybdenum 0.177 wt.%,...

IoT (Internet of Things) has been widely used in the agriculture industry, ranging from food production and management to irrigation planning, as well as the prediction and prevention of diseases in plants and vegetables. This paper presents a review study on the IoT infrastructure, including its three-level...

Liquefied natural gas (LNG) is utilized as a dual fuel source in maritime engines, where LNG serves as the primary fuel and diesel acts as the secondary fuel. In pursuit of heightened energy efficiency and diminished environmental effects within the shipping sector, LNG has surfaced as an eco-friendly...

Predicting financial distress is a crucial thing in company management, so researchers are competing to develop methods that can produce high accuracy in predicting financial distress. One method that is being widely developed is Machine Learning. Machine Learning, which is a branch of artificial intelligence,...

The slope of the tunnel has an impact on the distribution of smoke and droplets, which subsequently affects the extent of thermal radiation damage experienced by individuals in the tunnel. Numerical simulation was employed to replicate the progression of fires in inclined tunnels. Using this simulation...

Currently, wind tunnel pressure tests are commonly used to study the wind load characteristics of photovoltaic structures, by reducing the aspect ratio of the photovoltaic panels to meet the testing requirements. This study investigates the influence of model width/thickness ratio on the wind pressure...

With the intensified market competition and the upgrading of consumer demand, furniture enterprises are facing the urgent need of transformation and upgrading. The emergence of the industrial Internet platform provides new opportunities for the digital transformation of the supply chain of furniture...

The purpose of this study focuses on developing a system for printing Student Study Result Cards (KHS) in the information environment of the River, Lake and Crossing Transportation Polytechnic. The information system was developed using the Waterfall Method. Overall, there are four stages of research...

The pouring vibration method is adopted to prepare a fireproof, durable and decorative wall panel, whose materials for preparation are mullite, cement, powder, glass beads, cellulose, pigments and waterproofing agent. The test result shows that the greatest dosage of raw materials for preparing decorative...

The mechanism governing the flocculation of activated sludge (AS) with different concentrations of aluminum was studied in this paper. The AS samples were cultivated in sequencing batch reactors at 22 . The sludge retention times (SRT) was 15 d. The dosages of Al3+ were 0.00, 0.0625, 0.125, 0.250, 0.500,...

The paper describes the development of a complex method of decision making support for the objectives of the Russian Federation innovative development with regard to the specific conditions of mining regions of the country. The extremely large amount of unstructured and poorly structured information...

A square 3D-trench electrode detector structure based on the fast readout electronics is simulated in this paper using TCAD tools. Due to the small size of this structure, the detector is intrinsically rad-hard and it's response time can be as fast as 10's of ps. Electric characteristics including electric...

At present, the traditional internal combustion engine vehicles caused serious damage to the environment, in this context, people must re dynamic problems for future cars for a full range of research and discussion, in order to make the traffic of our country energy strategy transformation. In this way,...

Y2O3- doped Al2O3 transparent ceramics have been successfully fabricated by microwave sintering at the lowest temperature. Compared to vacuum sintering processing, the microwave sintering needs a lower sintering temperature and shorter dwelling time to get highly dense Y2O3- doped Al2O3 transparent ceramics...

The cyclic variations in spark ignition engines occurring especially under specific engine operating conditions make the maximum pressure variable for successive in-cylinder pressure cycles. Minimization of cyclic variations has a great importance in effectively operating near to lean limit, or at low...

To improve the strength of the polyimide (PI), composites with SiC whiskers doping in the polyimide matrix were prepared. In order to avoid the conglobation of the whiskers, SiC whiskers pre-dispersed in the ethanol. SiC whiskers/PI composites were prepared by high-speed mechanical stirring. The resulting...

Galanga essential oil (GEO) liposomes were prepared by ethanol injection method and were characterized by size, polydispersity index (PDI) and zeta potential. Furthermore, the quality evaluation was conducted using the morphology observation and preliminary stability test. It was shown that Galanga essential...

It is quite difficult to get the temperature field of flow liquid from the three-dimensional perspective by hand calculation. But we figure out an unusual method to obtain the temperature, and we also use 3D software to simulate and test. In order to facilitate the calculation, we use cuboid bathtub...

High penetration of intermittent distributed generation access to the grid is a new challenge of the grid planning and operation. In order to achieve the best balance between economic cost and distributed generation capacity, a new method of active distribution network integration considering voltage...

Unlike the general tile laying problem, the tiles, in this case, have a variety of different shapes and can be rotated when placed, thus increasing the difficulty of solving the problem. Through the object-oriented analysis method, the article analyses the characteristics of the tiles and flooring, constructs...

11605 coal face is the first working face in the lower series coal of Daizhuang coal mine, whose gateway drives along No.16 coal seam, containing iron sulfide with the thickness of about 300mm under the roof of 400 ~ 500 mm. To insure efficient driving of 11605 face gateway and meet the construction...

Denoising is an important problem in image processing, as it can influence the following processing step and decide the final visual effect. To denoise the image and preserve the details, this paper enhances the Nonlocal Means. When estimating the value of a disturbed pixel, we use the information of...

As a new working substance of heat transfer, nanofluids have broad application prospects in the field of heat transfer enhancement. The preparation of nanofluids is the foundation for further study on other areas of heat transfer, such as the cooling of electronic components, the use of solar energy,...

He cold asphalt concrete is laid composite that combines the advantages of rigid cement concrete and asphalt concrete flexible pavement materials and new waterproof materials, and it is also known as semi-rigid concrete or semi-rigid waterproof concrete. Cold paved asphalt concrete composite retains...

From the beginning of the last century, the sugar industry has been undergoing reform and advance. In the global economy, the traditional sugar industry chain has been unable to promote economic development, and this development is not based blindly on raise sugar content and sugar yield of sugarcane....

Aluminum metal matrix composites (Al-MMCs) with Al2O3 particulates as reinforcement fabricated by the power metallurgy (PM) techniques have gained much attention due to their unique characteristics, which combine the roles of the process method, Al2O3 particles and aluminum matrix. The contents and sizes,...

In the nowadays scenario the fossil fuel sources are depleting. Energy is obtained by the conversion of energy into other. The renewable sources of energy become more popular. One such energy is explained in this paper. The number of motorcycle pass through Speed Bumper on the road is increasing every...

This article mainly embarks from the angle of Walter Gropius' architectural thought, through the analysis of his classic works, discussing his thoughts on the impact of architectural design.

This paper reviews the existing user behavior analysis systematically and summarizes the latest progress of user behavior analysis. It introduces the user behavior analysis from multiple perspectives such as concept, data mining algorithm, application of different fields. It analyses deeply the advantages...

The LNG shipbuilding profiles’ deformation leads to lots of challenges for hi-precision shipbuilding, in order to achieve hi-precision manufacturing for deformed LNG shipbuilding profiles, a 3D-compensating algorithm for shipbuilding profile deformation is developed based on the profile deformation happening...

Based on the analysis on data about water regime in the downstream of Tao'er River (Taonan Reservoir) in Autumn (September 2 ～ October 1), the author analyzes the reasons of changes of the water level and flow rate of Tao'er River from aspects of the water supply mode of the river, factors of affecting...

Considering the multiplicative model for speckle noises, the kernel regression base on multiplicative model is built as the maximum likelihood estimation. Then, the gray similarity measure is put up forward based on the Gamma distribution, so the speckle reduction based on the multiplicative model for...

The article presents a conceptual and mathematical model of the intelligent decision support system of the unmanned aerial vehicle operator, what will allow one to make informed decisions in real time with a high degree of reliability.

It had been conducted research on characterization the mechanical properties of biodegradable plastic composites from HDPE (High Density Polyethylene) and gembolo starch. This study aims to determine the mechanical characteristics of biodegradable plastic made from a mixture of HDPE and gembolo starch....

According to the influence of wind power integration on the security and stability of power system, deterministic unit commitment is currently used to economic dispatch, which takes reserve capacities to cope with the wind power fluctuation. Compared with the traditional deterministic unit commitment,...

Total graceful labelling is a new graph labelling of graph theory. We define strongly the total graceful labelling and determine the existence of a class of trees having perfect matchings and strongly total graceful labellings. Our methods can be easily transferred into efficient algorithms.

The paper looks back the history background in which project supervision system occurred, illustrates the function of the project supervision. Then, while affirming the achievement that the project supervision work has got, combining the real situation of the project supervision, the paper widely and...

One single-period many products 4PL network location model which synthetically taking the manufactory, centralized return centre, consumption area/initial return point, repair processing centre, distribution centre, and disposal centre into account,is constructed in this paper. The objective is to minimize...

The necessity and research development of the optimization of NC machining parameters is analyzed. Problems, probable solutions, development trend of the optimization research of NC machining parameters are reviewed. And some useful research directions are proposed.

Human-Robot Collaboration aims at exploiting the different but complementary skills of both the human worker and the programmable machine. It requires a high degree of interaction between the two actors and it is accomplished by special devoted robots. The study shows it is possible to redesign existing...

With the continuous development of society, people have more and more material and spiritual needs. The interactive design of multimedia has drawn people's attention. Virtual reality can make people feel the immersive experience. Nowadays, many virtual museums and virtualized operating platforms have...

The aim of this research was to determine the growth and production of white oyster mushrooms and ear mushrooms on various types of substrates as well as the R/C value of farming ratios. Research has been carried out in the Integrated Laboratory of the Faculty of Agriculture, Unisma of Malang. The study...

Mechanical properties identification of rubber is important to predict rubber performance. Identification of rubber mechanical properties is more difficult to do than it is on metals due to hyper-elastic and nonlinear properties of rubber behavior. Mechanical properties of rubber are often expressed...

This research is a continuation of previous research related to monitoring and automation with certain controls in the electrical engineering laboratory. In the research that has been done, it is related to the design and build of monitoring of electrical quantities in Polines’ electrical workshops....

Indonesia is known as one of the largest coal producing countries in the world, especially on the island of Kalimantan. With coal reserves of ± 16,627 million tons. With such abundant coal reserves, Kalimantan uses rivers as the main means of transportation for coal distribution. However, the distance...

OFDM system can be implemented on GNU Radio, one type of SDR (software-defined radio). SDR is a transmitter and receiver system that uses digital signal processing to code, decode, and modulate data. GNU Radio is used as a transmitter and receiver model for quality measurements for the working of the...

Aceh is a seismically active region, with the 2016 Pidie Jaya earthquake highlighting the need for resilient building design. This study evaluates the seismic performance of Building A at the Faculty of Engineering, Universitas Syiah Kuala, in response to a proposed vertical extension from three to five...

Post-fire curing has proven to be an effective repair method in restoring the structural integrity of concrete structures affected by fire. Various post-fire curing methods have been explored in previous research; however, the practical feasibility of these methods remains a major concern. An experimental...

The COVID-19 pandemic broke out in December 2019 because of SARS – cov. As of November 24, 2020, more than 59 million cases were accounted in all over the world, causing more than one million passing. Covid 19 is portrayed by incendiary disorder such as fever, coughing, breathing problems, agony, and...

The goal of this study was to classify images of typical Central Javanese batik, including Pekalongan, Semarang, Lasem, Pati, and Solo batik. Batik has a variety of varied motifs; each region in Indonesia has certain characteristics on batik motifs. Based on literature studies, the use of probabilistic...

Convolutional Neural Networks (CNNs) have shown great promise in handling the challenging task of classifying MRI images, particularly in the identification of brain tumors and the diagnosis of Alzheimer’s disease. Finding the ideal values for these parameters can still be difficult because of the complexity...

Two-dimensional semiconductors are redefining the landscape of digital integrated circuits (ICs) by leveraging their atomic-scale thickness, exceptional carrier mobility (>200 cm2/V·s), and layer-dependent bandgap tunability. These properties directly address silicon’s limitations, particularly short-channel...

With the development of materials science and technology, extensive experimental research has been conducted on the properties of PVA steel hybrid fiber-reinforced cement-based composites. However, due to external and human factors, errors and relative limitations have occurred. Therefore, the use of...

Submarine pipelines experience continuous exposure to complex loading conditions during operation, including external hydrostatic pressure, axial tension and bending moment. The interactive effects of combined loadings significantly amplify structural vulnerability to catastrophic collapse, particularly...

This study explores the thrust modulation capability of a hybrid rocket motor (HRM) using a novel multilayer tubular (MLT) fuel grain configuration. The fuel design integrates two distinct fuel materials paraffin wax as a booster and polylactic acid (PLA) as a sustainer arranged in concentric layers...

Silicon-based electronic products are the main devices in the world’s market. However, silicon has a relatively narrow bandgap and it is difficult for silicon-based electronic products to work in extreme environments. Therefore, silicon carbide emerged as the third-generation semiconductor. An important...

The potential for environmental pollution can occur in shipping activities and port activities, therefore the Ministry of Transportation issued PM Number 58 of 2013. Based on conditions at the port, it was found that regulations were still not fulfilled, such as tools and materials for dealing with environmental...

In the current low-carbon economy, consciousness regarding environmental protection is rising worldwide, leading to increasingly stringent environmental regulations. China, the world's largest exporter, is undoubtedly affected, especially in transportation and communication facilities, which constitute...