Advances in Engineering Research

This paper presents an UUV’s hydrodynamic modeling method, where the hydrodynamic coefficients are calculated using both of theoretical and empirically-derived formulas. The vehicle is developed for the purpose of overcoming strong sea current. For this reason, the vehicle has the flattened ellipsoidal...

The development of medical Internet is fast, so the related laws and regulations fail to keep up with the pace of its development. If a doctor practices online, there is no clear regulation and rules. At the same time, domestic clients haven’t the habit to pay for the medical service from the Internet....

The industry-university-research collaboration is the driving force for the innovative city construction. The innovative city construction can promote the development of the industry-university-research collaboration. This article empirically studies the interaction between industry-university-research...

Cloud computing is a new computing technology with great potential value. It utilizes large-scale hardware and virtual resources to provide users with dynamic application services. In order to maximize the use of cloud resources, give full play to the maximum potential of cloud computing, mining efficient...

Methods used for the determination of potassium content in potassium hydrogen phthalate are mostly based on traditional chemical method, which is lengthy and cumbersome. If inductively coupled plasma emission spectrometry or atomic absorption spectrometry are used to determine the potassium with high...

Starting from the actual background of animal husbandry as an important basic industry of social economy, the information fusion industry alliance member enterprises build the industry knowledge base in the process of building livestock ecological management platform. This paper takes into account the...

The microstructure of waterproof sheet in corrosive water environment of underground engineering was studied by using X-ray CT technology, and the indexes characterizing the failure of material impermeability were explored. Distilled water and NaOH solutions were prepared to simulate corrosive groundwater...

Densities of diglycine in aqueous solutions of L-alanine and L-serine were measured at 298.15 K and 310.15 K. The standard partial molar volume , standard partial molar volumes of transfer have been determined. The results show that, the values of diglycine are positive and vary in the sequence L-serine>L-alanine....

In the past decades, Depression, Anxiety and Stress (DAS) became a serious health issue in the society over all parts of the world. It can be measured by Depression, Anxiety and Stress Scale (DASS) which consists of a set of questionnaires. Several techniques are proposed to validate the DASS level and...

Riau Province is an area that has the largest peatland in Sumatra, namely 4.044 million ha (56.1% of the Sumatra peatland area or 45% of the land area of Riau Province). Peat soils have a low bearing capacity, a high degree of compressibility, and high water content. So peat is unfavorable to support...

The Sriminosari village is a coastal village in East Lampung district that had mangrove forests. Now, mangrove forests of Sriminosari used as a mangrove ecotourism area and will be developed as a form of proper management to ensure the conservation and sustainability of rehabilitation while simultaneously...

The structure of the solar power plant is given. The issues of optimization and location of objects on the ground are considered. An assessment of electricity losses on internal lines was estimated.

To reduce the carbon foot prints of recycling, reuse of the waste of the CNC industries is the focus of attention. The present research intends to use CNC waste in the polymer composite which reduces the waste in the landfill encourages to the sustainability of the environment. In the present work CNC...

IoT-based precision irrigation optimizes agricultural practices by using real-time sensor data to automate irrigation systems. Unlike traditional, labor-intensive irrigation systems that waste time, energy, and water, modern sensor-driven systems enhance efficiency, conserving resources and increasing...

This study aims to assess the seismic vulnerability of soft ground stories and propose potential solutions by comparing the use of concrete shear walls and steel bracings at the ground level. In our country, soft-story buildings are commonly used, with many multistory structures leaving the ground floor...

In recent decades, special considerations have been given to the use of fire safety analysis on modern concrete buildings. The considerations include the stability of building which providing sufficient time for the occupants to evacuate and for firefighting. This paper is mainly concerned with the performance...

Personal Identification Numbers (PINs) are the structure blocks of contemporary security systems, but conventional means of inputting them—typing on physical or virtual keypads—leave users exposed to serious threats. Systems such as shoulder surfing (in which attackers visually monitor PIN input) and...

Ensuring the flatness and verticality of the formwork system during building wall construction is crucial. However, challenges such as limited space on site, uneven formwork surfaces, and difficulties in establishing a datum point hinder accurate assessment of formwork flatness. Therefore, developing...

This research presents a systematic literature review (SLR) and bibliometric analysis to examine how artificial intelligence (AI) determinants are conceptualised, implemented, and evaluated in public sector information systems. Following the PRISMA guidelines, 38 reviewed articles published between 2020...

Nusa Putra University has a mechanical engineering workshop with various tools including the SMAW welding machine. Students use this machine to do practicum and learn how to increase the welding skills. However, the air circulation does not support welding fume release. A Fume Extractor is a system that...

The dynamic compressive experiments of 2D-C/SiC composites under low temperature were performed on the SHPB system. The low temperatures at 173K and 103K were obtained by controlling the ratio of the absolute alcohol to the liquid nitrogen. The wave shapers were designed to meet the requirements of stress...

Since data mining methods and technology, the most basic and most important method is statistical methods and statistical theory also spawned a number of new data mining methods, the study of data mining and statistical methods can be applied not only to practitioners use data mining to provide advice...

Non-destructive testing technology of a steel bar with crack are analyzed and discussed based on vibration characteristics method. The natural frequencies, mode shapes and modal curvature modal for crack of steel bar were analyzed using the method of finite element analysis. Thus it is concluded that...

The effects of exogenous melatonin on growth and physiological characteristics of Shepherd's-purse seedlings under salt Stress were studied by spraying 5 different concentrations of MT (0, 50, 100, 150, 200 mol-L-1) solution on leaves in Shepherd's-purse seedlings. The result showed that spraying MT...

The pressure correction method based on N-S equation, using the split SIMPLE algorithm, the crosswind conditions of pantograph's aerodynamic characteristics numerically simulation analyzed. The results show that with the wind direction increasing, the pantograph's aerodynamic load is nonlinear, the lift...

In this paper, a commercial finite element software, ABAQUS was used to simulate the influence of friction coefficient on copper alloy process by Equal Channel Angular press technique. The geometry of the simulated samples is 7.3mm width by 50mm long. The die is analytical rigid, and the process was...

In this paper, a mathematical modeling is set up based on the trigger equipment of light electric vehicle speed control system, and the unit step response curve of dual closed-loop speed control system is given by using the simulation software simulink. A conclusion can be drew that the unit step response...

In linear vibration system, it is difficult to determine the relationship between generalized coordinates and the natural frequency and to obtain the coupling relationship between generalized coordinates. Therefore, based on the MATLAB language the energy decoupling method is used to calculate the energy...

Response Surface Methodology (RSM) is employed to optimize the polysaccharides extraction technique of Catathelasma ventricosum. This experiment adopts extraction temperature, extraction time and feed liquid ratio as the influencing factors. The polysaccharides extraction amount of Catathelasma ventricosum...

The Jingjiang River is the reach of Yangtze River just downside of the Three Gorges Reservoir (TGR), and most oftenly threatened by the flood. In this reach the natural flood normally routed as kinematic wave, but since TGR put into operation the outflow can be changed dramatically once the controlling...

The tobacco leaf baking quality can be effectively improved on one hand, and overall baking time can be shortened to certain extent on the other hand by improving temperature in curing barn and uniformity of airflow organization distribution, thereby lowering energy consumption of baking. In the paper,...

Blow-by of crankcase should be led into intake system and burn it again to protect environment. This study examines effect of crankcase blow-by on formation of particle. By controlling the flow of crankcase blow-by to atmosphere or intake system, number concentration of particle distribution was measured...

One of an H bridge Cascaded multilevel inverters was studied and designed. In this paper, the basic topology of microcontroller based H-bridge cascade multilevel inverter and the realization principle of control system are introduced. The principle and control strategy of the inverter are studied and...

The microstructure (before and after quenching), phase (before quenching), carbide content and hardness were studied by scanning electron microscopy, X-ray diffraction, optical software and Rockwell hardness tester. The results indicate that carbides of Cr5 steel have different morphology features and...

Based on the Shenzhen Bay Bridge which is located at the center of park cultural landscape, so it has important requirements of improving environments , protecting the environment and beautifying the environment. the bridge is optimal designed to be a flying swallow type curve special-shaped composite...

The paper deals with life-cycle cost analysis in relation to public contracts. Public contracts in the Czech Republic are a very sensitive and frequently discussed area where the safe price, which would not include other investment in both implementation and usage phases of the facility, is discussed...

The paper describes the research conducted in the NSTU named after R.E. Alekseev to design and create clutch linkage of the multispeed manual transmissions with automatic control and pneumatic actuator. It represents a general scheme of the transmission and clutch control, design model of the clutch...

This paper deals with the manufacture of electronic design of digital systems with HDL programming language. HDL design synthesized using Leonardo Spectrum software, it means HDL design that has been designed to be compile on IC design technology, so it can be translated into the form of schematic and...

A improved dynamic parameters model is presented based on cellular automata in this paper.The dynamic parameters: Direction-parameter, Empty-parameter and Cognition-parameter are formulated to simplify tactically the decision-making process of pedestrians, which can reflect the pedestrian judgment on...

With the extensive application of network, massive growth in the scale of data through cloud computing has been observed. Cloud computing is a powerful technology to perform complex computing, and applications running on cloud computing with Hadoop architecture are increasing. In this paper, after studying...

Population migration trend is a new kind of evolutionary algorithm proposed recently, which simulates the principle of Population Migration. In this paper, the new search of mechanism is proposed to predict the population migration trend for the visual effect to the convergence of the ASFA(Artificial...

Fly ash is a commonly used concrete admixture, which can improve its durability. In this paper, a series of experiments were made to study the influence of the amount of fly ash additive on the mechanical properties and shrinkage properties of concrete, which provides reference for the preparation of...

Traditionally the reliability data is very insufficient in the early designing stage of CNC machine tools and the factors that affect reliability prediction are complicated and fuzzy. So, in this paper, a fuzzy comprehensive evaluation model based on vague set algorithm (VSA) is proposed for reliability...

This research was conducted at the Assembly Hall or auditorium of Engineering Faculty UNS. This study aims to see the acoustic comfort and how to improve it by modifying the room material. The method chosen is the method with the least amount of modification. The method applied was measuring the room...

The effects of soaking seedlings of four abscisic acid (ABA) concentrations (0, 1, 5, 10, and 20 μmol/L) on the growth and cadmium (Cd) accumulation of pea seedlings were studied by the pot experiment. The results showed that, compared with the control, the roots, stems, leaves, and shoots biomasses...

In this paper, we refer the discriminate model of low-voltage and urgencies index as an important research content. Formulate the distribution function and calculate the probability of occurrence of each interval by analyzing the data distribution of the low-voltage. Urgencies indicators are set based...

Mathematical apparatus for calculating the road transport operation volume, existing in the modern theory, corresponds to the only technology of the transport process - functioning of the pendulum route with reverse unloaded mileage. However, modern specifics of freight motor transport enterprises functioning...

This study conducted a failure analysis of the condenser tube in unit 1 of the Tenayan Steam Power Plant. It started from the inspection in the first year after the commercial off date (COD) where there is a leaky tube, so there is further suspicion. Various tests and analysis are carried out such as...

The article is devoted to the comparison of the characteristics of electric traction aircrafts and those equipped with classic ICE. The calculation of the flight range of aircraft equipped with an electric motion has been made.

Nowadays social media use has become more widespread, many societies that use social media as business media are often being called online businesses. Racingmerch201 as one online store that markets products, has special strategies to increase sales to be able to keep up with very tight online business...

The rapid development of information technology generates high dimension and large scale data, which puts severer challenges to network security. Feature selection is proposed for the reduction of data dimension so that features of original data are utmostly retained and improving the effectiveness of...

In the groups of processes of distributed systems, it is necessary to make decisions based on agreements; these processes may operate in distributed teams; processes may require the use of shared resources in the form of mutual exclusion. The following question arises: what kind of decision models will...

In order to find buckwheat having higher antioxidant compounds and antioxidant ability. In this study, we evaluated total phenolic content, DPPH radical scavenging rate, ABTS radical scavenging rate, reducing activity and Fe2+ chelation activity of buckwheat extracts after and before germination, and...

The flashover voltage of short string insulator is different from long string insulator, and big error could be occurred when using flashover voltages of short string insulators to reckon the ones of long string insulators. In order to reduce this deviation, under the conditions of different equivalent...

In this paper, we study the method of wireless sensor network based on energy-saving wireless sensor network, and put forward the comparison criteria of wireless transmission network single transmission system and performance of collaborative transmission system based on space-time block code. Aiming...

A series of aerodynamics experiments were conducted to identify the effects of lateral leakages to the wind pressures distribution on the porous wall of buildings. The wind pressures distribution on the porous exterior walls of buildings had been studied by aerodynamic experiments in wind tunnel. The...

In Indonesia, Ngadas Village is one of the Agricultural Villages. Ngadas people do more activities in the fields than in their homes or dwellings. So, research about local wisdom of the Ngadas community in managing an agricultural landscape was fascinating. This research aimed to provide an overview...

In the early 2020s, Indonesia was shocked by the Coronavirus Disease (Covid-19) outbreak which struck almost all parts of the world. The Indonesian government spontaneously implemented a policy of learning from home, working from home, and worship at home. All face-to-face activities are diverted online....

Image with better quality will make the next processing easier. This study aims to analyze the result of image quality improvement using color intensity modification to determine the ripeness of avocado. Color intensity modification used two methods, i.e. Histogram Equalization (HE) and Contrast Stretching...

The significant volume discrepancy between planned targets and actual implementation in a mining project creates complex issues related to schedules, equipment and labor mobilization, and operating costs. This difference can be caused by survey methods, mapping methods, excavation volume calculations,...

This paper explores the application of the Random Forest algorithm to optimize crop selection in precision agriculture. By integrating IoT-based data collection with machine learning, the study develops a data-driven approach to recommend the most suitable crops based on key environmental and soil parameters....

Manual analysis of endometrial thickness from transvaginal ultrasound (TVUS) images can lead to inconsistent interpretations due to varying expertise among medical professionals. Accurate endometrial thickness measurement is crucial for successful in vitro fertilization (IVF) treatments and increased...

Automotive workshop produce wastewater from the results of washing mechanic hands and machine components that containing Total Dissolve Solid (TDS). The TDS content in floodwaters is closely related to the level of turbidity and can reduce water quality so that it is harmful to the water ecosystem, therefore...

This paper presents a simple number theoretic method for creating digital concentric and circular objects like potteries based on some effective digital geometric approaches. This paper introduces a novel algorithm to create digital 3D surface using certain simple but efficient digital geometric techniques....

This paper reviews the advancements in image tampering detection technologies driven by deep learning. Traditional methods, dependent on manually crafted features, often fall short when confronting sophisticated tampering techniques. In contrast, deep learning models such as Convolutional Neural Networks...

This research explores the integration of photovoltaic systems in super high-rise buildings to enhance their earthquake resilience. By analyzing the structural performance of buildings equipped with these sustainable energy systems under seismic loads, the study aims to identify potential benefits and...

This article reviews the current research status of the large-scale part-slicing printing technology. With the rapid development of 3D printing technology, its applications in manufacturing, healthcare, construction and other fields have become increasingly widespread. However, the build volume of the...

Shelterbelts are of great significance to reducing wind and sand disasters and improving and restoring the ecological environment in arid areas. In order to optimize the configuration of shelterbelts in arid areas, this study used Pinus sylvestrwasvar. Mongolica and Haloxylon ammodendron as research...

The use of energy has helped the community a lot to meet their needs in various ways, one of which is the need for electrical energy for lighting, the use of electric tools to help work in the community, both in the government sector, the business world and industry. Abundant supply to be able to meet...

Osteoporotic vertebral compression fractures (VCF) are very common spinal fragility fractures affecting the elderly, with an incidence reaching 700,000 elderly per year, affecting up to 25% of individuals over 70 and 50% over 80 years old. These symptoms typically appear in postmenopausal women and men...

Sustainable energy projects are essential for Africa. They offer energy solutions while being environmentally responsible. This review paper shows Africa’s growth through renewable energy. Cleaner energy is guided by renewable energy sources. A look into Africa’s renewable energy sector shows innovation...

Air pollution caused by Atmospheric Particulate Matter (APM) and its impacts have become one of the most important challenges for public health and environmental quality in China since 2000s. Here we report a study of heavy metal pollution in atmospheric deposition in Xi'an city. Dustfall samples were...

The results of laboratory experimental research in the produc-tion of the filling autoclaved slag-concrete made of slag wastes and lime are considered in the article, the methods of filling of abandoned vertical mine workings with the slag-concrete blocks, which are made either directly in the mine working...

A novel SBR based on simulating photovoltaic aeration for organics removal was established for rural sewage treatment. Short-term effects of aeration rate and temperature on soluble chemical oxygen demand (SCOD), ammonium (NH4+-N) and dissolved total phosphorous (DTP) removal processes were investigated,...

Photoelectric detector is widely used in the military; it is mainly used to measure the azimuth of the air target. This paper mainly studies the requirements of the aircraft maneuvering when the photoelectric detector is pure angle measurement of air maneuvering targets. According to the principle of...

High pressure jet grouting seepage technology has gained improvement, it is widely used in water conservancy project as its technical advantage, but because of construction environment of offshore manmade island is more complex than water conservancy project, so its detection and construction technology...

Lathe chuck wrench safety device design, can be in the process of lathe operations to better solve the problems of potential safety hazard, thus ensuring lathe application process, can have high security. In the process of lathe chuck wrench safety device design, to safe hidden trouble for lathe, grasp...

We synthesized an imidazole carboxylic acid-nickel complex, characterized its structure, and transmitted it to P. martensii via dietary algal supplementation. Nacre color was characterized using colorimetry, and its microstructure was observed with scanning electron microscopy (SEM) and atomic force...

In order to deal with the quality of Antarctic krill during the storage and transportation process caused by the failure of the supply system and the freezing equipment in the process of storage and circulation in the form of frozen products, the project team changed the refrigerated environment to the...

In recent years, with the rapid development of the tourism industry and the increasing demand of GIS technology, in order to enhance the provincial tourism meteorological services capabilities, GIS technology has been widely used in the meteorological field. Facing the application demand of tourism in...

In order to investigate the effect of heavy metals of the gangue on the surrounding soil, fresh gangue and soil samples along from certain gangue mountain were collected. Nine heavy metals of Cu, Pb, Zn, Cd, Ni, Cr, As, Hg and Ba were detected and the relevance of gangue and soils was analyzed. Several...

Marine electromagnetic transmitter is one of the key devices for marine electromagnetic exploration, the large current transmitted by the device as well as the data collected by the receiver would undergo process and invert calculation to master the shallow resistivity structure under the seabed. The...

Heavy transporter plane is the carrier for segmented hull in modern shipbuilding. Its positioning accuracy directly affects the installation accuracy of hull, therefore it is necessary for the heavy transporter plane to improve the accuracy of leveling control by hydraulic automation. The leveling strategy...

In this paper, a high precision lighting control system based on TPS92640 is proposed, which meet the requirements of image acquisition in light source. The whole system adopts modular design, including STM32 master module, human-computer interaction interface, light-driven module based on TPS92640,...

Mobile learning based on cellphone has become more and more popular among modern learners. Serious games not only create rich learning environments for learners, but also stimulate learners' interest in learning. This paper presents the design strategies of mobile serious games, including character design...

Human factor is one of the most important reasons causing runway incursion event happened. On the basis of statistics analyzing the existing research about runway incursion human factor causes, this paper builds a key human factor influencing runway incursion and proposes a process of controllers and...

To reveal the community structure and abundance of ammonia-oxidizing bacterial (AOB) and nitrite-oxidizing bacterial (NOB) in integrated fixed film activated sludge process (IFAS) treating industrial wastewater, the molecular biological techniques of polymerase chain reaction denaturing gradient gel...

A new design method of flyback switching power supply is proposed for wide input voltage application. The new design method is called the boundary conduction mode (BCM) design.The finished flyback converter can operate in very wide input voltage from 80V to 500V reliably with the proposed method. The...

This report presents synthesis of well-dispersed Ag3VO4 nanoparticles@polyacrylonitrile (PAN) nanofibers by an easily controlled, template-free method as a photo-catalyst for the degradation of methylene blue. Their structural, optical, and photocatalytic properties have been studied by X-ray diffraction,...

Substrates play important role in constructed wetland for pollutant removal, selecting suitable substrates is one of the effective ways to improve the purification performance and to prolong its service life. This paper reviews the research of constructed wetland substrates in recent years, including...

It is developed, applied the virtual instrument(VI) technology, grey system theory, and database, the fault diagnostic system for the shipboard weaponry equipment, in order to update entirely the means of the equipment testing. The modularization and universalization are proposed in its database-based...

At present, most energy-saving studies on tunnel lighting are theoretical or emulational, fewer are experimental studies. Based on optimized tunnel lamp installation parameters, a simulation experiment of tunnel lighting and a tunnel model experiment of lighting were carried out to study the energy-saving...

We present the analytical relations and the order of their introduction in the hyperbolic method algorithm designed for the generation of the optimal estimates of the radio sources coordinates and for the evaluation of the potential accuracy with which they are measured in the time-difference of arrival...

In order to improve the simulation efficiency of the space environment, a kind of honeycomb thermal shroud is designed. Using the fluid mechanics theory and the finite element method to do the numerical simulation for the fluxion and the heat transfer enhancement of the internal fluid in the honeycomb...

The library is of great significance to the development of education in our country. Its management cannot be ignored. In the management of the library, the library computer database management is currently the most common and practical method. The author conducts research and analysis on the application...

Sparse linear predictive analysis using the ℓ1-norm minimization criterion has been shown to provide a valid alternative to the traditional linear predictive approach. The sparser the resulted speech residual is, the fewer pulses needed to represent it. To find a sparse residual further, we propose to...

Stock price index prediction is an important part of stock investment. Due to the highly nonlinear and highly noisy features of the volatility of stock market, it is extremely difficult to predict stock price trend. In this paper, we use machine learning method to give stock price index prediction model...

This paper presents a fast quality scalable video coding method based on compressed sensing(CS). The proposed method obtained the coding scheme of the enhancement MJU by using the interlayer and spatial correlation and kept the base layer’s coding scheme unchanged. And the part in the enhancement layer...

Currently, Trans Jogja Bus has replaced the other transportation vehicles existing since 2008. There are 129 units of Trans Jogja Buses operating and serving 17 routes. In its development, the operation of Trans Jogja Bus experienced obstacles, namely the number of sections and crossroads traffic congestion...

The area around Champhai district contains exposed Barail Group of rocks (Oligocene) which comprises of buff-coloured sandstones with alternating beds of shale and siltstone. This study focussed on the provenance and tectonic setting of the Barail sandstones with the help of detailed petrographic studies...