Advances in Engineering Research

This study is aimed to evaluate the growth and survival rate of red tilapia (Oreochromis sp.) cultivated in a biofloc system brackish water tanks with the addition of different carbon sources. The experimental treatment was addition of different carbon sources to the media, namely molasses (B), tapioca...

Twenty-three red foxes (Vulpes vulpes L.) were tested for the presence of mercury in their internal organs. These animals were captured in the Vologda region (Northwest Russia) within 2009 and 2018. The animal's liver, kidneys, muscles, brain, spleen, chyme and intestinal wall were tested. The concentrations...

This study evaluated the damage and fracture patterns in mine floors and the fault activation caused by longwall mining, as well as the associated effects on mine water inrush. Numerical simulations were used for this evaluation. The results indicated that higher water pressures in confined aquifers...

X-rays are widely used for the detection of defects in industry. the grayscale value distribute of the image is uneven, due to scattering and other reasons, which brings inconvenience for threshold segmentation of defect detection. In this paper, a grayscale value compensation algorithm is proposed by...

The smooth flow of the road is in close contact with the convenience of people traveling. The impact of closed communities on urban road capacity has become a hot spot in recent days. This paper aims to improve the existing model to explore the impact of community openness on road capacity.

The correct understanding of the nature of management is conducive to improve the efficiency of management. By reviewing the different disciplines and management science theories on the essence of management, in this paper we combine the theory of ethics to analyze, and believe that the nature of management...

Debonding of fiber reinforced polymer (FRP) is a main premature failure of RC beams strengthened with FRP plate, which is mainly due to the interfacial slip between FRP and concrete beam. The interfacial slip is one of the key factors to affect the behaviors of RC beams strengthened with FRP plate. Under...

Slurry supporting is an effective measure to avoid the borehole collapse in the process of boring construction. Based on the indoor slurry-supported models, this paper has analyzed change law of shear strength of borehole wall with time by using indoor direct shear test. The following conclusions has...

In this paper, the size distribution and quantity of carbides precipitated during the partition process of 60Si2CrVA spring steel treated by Q&P with different partition time were statistically analyzed by SEM. Carbide particles were obtained by electrolytic extraction of 60Si2CrVA treated by Q&P with...

In order to solve residential engineering quality problems, the concept of evidence-science and its management principle is analyzed. Under the guidance of the evidence-science, the program to solve residential engineering quality based on evidence-science principle is put forward together with the characteristics...

Cloud computing is one of the key enablers for modern electric power dispatch systems, in which many assisted decision making applications are involved. This work focuses on one important decision making scenario, i.e., providing suggested actions for alarming signals from electric component in both...

Network protocol analysis can help security personnel analyze network vulnerabilities. However, the network protocol analysis is confronted with more and more kinds of protocols and more and more complex issues. Firstly, based on the basis function of the network protocol structure representation method,...

According to the application requirements of a kind of composite pressure vessel, aiming at the fiber winding of multi-axis CNC filament winding machine based on robot platform, the cylinder body and head of pressure vessel are analyzed. The geodesic winding line. Using MATLAB to calculate the trajectory...

Routine maintenance by involving the community is needed to overcome the social impact of routine road maintenance. Some of the variables that influence this are the level of community participation, budget and material participation, community institutions, road damage, method of implementation, material,...

Due to the coal softness and poor gas permeability of outburst coal seam, it is very easy to cause spray holes, stuck drills, hole collapse and coal cannons during drilling. Based on the long-term on-site coal seam drilling experience, combined with theoretical analysis, the key factors that restrict...

RCAS (Rear-end Collision Avoidance Systems) is one of the safety features in autonomous cars that can determine what kind of movement that a car installed with the RCAS system should perform to avoid any crashes with another car/object in front of it. This camera-based RCAS uses a Pixy CMUCAM5 camera...

Countries located on the equator have relatively high intensity of solar radiation. The thing that is most needed in a solar power plant is the intensity of solar radiation. Based on this, Indonesia is very suitable for the application of solar power plants. The power generated by a solar power plant...

In the Modern world the most important thing existing is privacy and security. Due to lack of security, people face lot of problems. In an organization it is necessary to maintain complete security from external entities. By using face recognition, the people can be authenticated, categorized and further...

In response to the demand for feature extraction in underwater target recognition, this article adopts mixed programming technology to design a software implementation method for underwater target time-frequency feature extraction. The time-frequency feature extraction of underwater target radiation...

The millimeter-wave of 5G will usher in a new era in Vehicle-to-Vehicle (V2V) communication. The ensuing radiation from a millimeter-wave of 5G bounces off most visible things, creating enriched multi-directional environments, particularly in sub-urban scenarios. Physical impediments were once primarily...

In this paper, an autoregressive integral sliding average model (ARIMA) and generalized regression neural network (GRNN) coupled high slope deformation prediction model is proposed, which mainly utilizes the long-term trend fitting ability of the ARIMA model and the short-term data prediction ability...

Aquaponics, a sustainable farming method integrating aquaculture and hydroponics, provides environmental benefits by reducing water usage and minimizing chemical fertilizers. However, efficient feed management remains a challenge, as improper feeding can negatively affect fish health and water quality....

One of the feasible essential things of the technological structure of thermal power plants running on liquefied natural gas is the economy of reserve fuel. The traditional reserve type of fuel in the Russian Federation is heating oil of the M-100 brand. The backup fuel at these power plants is practically...

The Coordination Planning of distribution network with distributed generation and energy storage is a hot research topic at home and abroad. This paper proposes a multi objective programming model with minimum investment cost and minimum annual operating cost as the objective function; the uncertainty...

This article describes the communication with no fixed centers of base stations, and the establishment of a multi-level communication network via the wireless module,which enables the communication of data between the control center and the front end of two-way transmission. This project uses TDMA communication...

A novel Y-shaped open stubs with harmonic suppression performance is proposed. To obtain the impedances of the open stubs, ABCD matrix analysis and computer aided design (CAD) optimization simulation are used. The proposed Y-shaped open stubs show that not only good match and low insert loss at fundamental...

An airborne strapdown inertial navigation system based on DSP is introduced. The TMS320F28335 and TMS320C6416 DSP chips of TI Company are used as the core components of the system, and the CPLD technique combined with the dual DSP structure of strapdown control and solution are used to realize logic...

The development of industrial automation puts forward new requirements of plate rolling machine, traditional plate rolling machine has been unable to meet the market demand. In view of this situation, this paper a kind of control system of plate rolling machine is designed based on trio motion controller,...

Transplanting of plug-seedling is an important method for seedling transplanting. Considering the problems existing in the transplanting of plug-seedling, a new plug-seedling gripping device based on mechanical finger was designed using Solidworks in this paper. The device controlled the rotation and...

To study the mechanical properties of emulsified asphalt cold recycled materials, and recommend reasonable structural parameters. Using orthogonal experiment design method the ABAQUS finite element analysis software to simulate, range method is used to analyze the simulation results. When the emulsified...

With the rapid development of information technology, IT business system is gradually increasing, and business system more and more depends on the information platform. Information platforms need a large number of IT elements support, monitoring software has become a key part of this. Whether relying...

This article is devoted to the development of technical solutions and structures aimed at improving energy efficiency of solar plants in the regions with temperate continental climate through the adaptive control of coolant velocity. The main development stages of the adaptive control system and its...

Nanodiamond (ND) as a filler material provides a nucleation effect on polyphenylene sulfide (PPS) and promotes its crystallization. The effects of ND on crystallization behavior and kinetics of composites were investigated by DSC. The results show that ND acts as an nucleating agent for PPS to accelerate...

A new kind of admixture for the shotcrete was proposed, its main ingredient is silica fume (61.3%) and bentonite (38.3%), plus a small amount of polyacrylic acid (0.4%). The influences of the admixture on the liquidity of shotcrete were studied, it is results that: 1) with the increase of the cement...

To research about parameters influence on the mechanical performance of haunch connection with haunch only on bottom beam flange, On the based of the analysis about haunch connection design step, theoretical calculation and ansys simulation were used to study the effect of haunch length, height ,beam...

The current building escape regulation is specification standard mostly according to the purpose and size of the building. Therefore, for the operation of the regulation, the classifications of building use must be clear and consistent, but the classifications of the architectural field and the fire-fighting...

It is well known that 4,4'- hexafluoro isopropylidene-phthalic anhydride(FDA) has higher permeability and selectivity. It is contributed to –CF group contained in polyimide structure material. In this study, the diffusion properties of a,w-bis(3-aminopropyldimethyl) oligodimethylsiloxane (ODMS) fragment...

Tree skeleton had great significance in constructing the three-dimensional model of the botanical tree and investigating the forestry. Based on the point clouds of the botanical tree collected via the terrestrial 3D laser scanner, we proposed a method of rapidly constructing the tree skeleton with the...

As China's wind farms increase rapidly and wind power installed capacity is growing, cleaning attendant wind turbine maintenance problems will become increasingly prominent. Most fans installed in harsh environments, high altitude, complex climate, while the leaf and work in high-altitude, all-weather...

To decrease network link cost is one of the most important paimsrs for computer network reliability optimization design. In order to make the network cost minimum, the network link medium cost, mathematics mode of reliability and resolve algorithm must be considered when it is designed. In the paper,...

In the present study, slope stability analysis has been carried out for Pakhi landslide, atPipalkoti, Uttarakhand Himalaya, India. The site is situated alongside Chamoli-Badrinath National Highway (NH-58) in the Higher Himalayas. This route has immense importance due to its functional service for both...

We report on a simulation of interior flow field in launch box with shock wave-opening technology. A three-dimensional model of the launch box has been established to study the process of shock wave forming and transmitting. The simulation of model was calculated with unsteady standard model. The whole...

Because the static heat capacity is set up on the low probability of occurrence of adverse conditions,this results in the waste of line transmission capacity.This article describes the technique of dynamic Capacity,beidou satellite accurate timing Technology is added to the dynamic capacity-line monitoring...

For precision mechanical system, the different 3d spatial distribution of form error causes different assembly contact state. Since 3d spatial distribution of form error is not taken account in modeling and evaluation method of geometric form error and it is hard to quantitatively analyze the relationship...

With the deepening of the official ship information construction, the building of communication command network architecture becomes one of primary tasks. A summary and review about some core elements about satellite communication, HF network and communication networks for ship formation was given. Based...

[Purpose] The formation of kidney stones related closely to the properties of urinary nanocrystallites. This study aimed to investigate the components of urinary crystallites in 56 cases of patients with magnesium ammonium phosphate (MAP) stones compared with the components of stones. [Methods] X-ray...

With the development of science and technology and the progress of the society, the wearable lower extremity exoskeleton robots become more and more popular. In the paper, on the basis of market research and the theory of ergonomics, design sizes of the lower extremity exoskeleton have been determined....

Urban areas lying in the alluvial soil are usually prone to a threat of liquefaction even during moderate earthquakes. Liquefaction is the measure of vulnerability of saturated sediment to thickening (compaction) during earthquake and thus to pore water pressures generation (formation) sufficient to...

In the ac/dc hybrid micro-grid, the reasonable configuration of the micro power to improve power supply reliability and economy is the most important issue due to the types and combinations of distributed power sources are too many. The paper considers the power installation cost, the operation maintenance...

The bioavailability of cadmium (Cd) is closely related to its presence in soil, in the experiment, grape was intercropped with four Bidens species (Bidens bipinnata, Bidens pilosa, Bidens parviflora and Bidens biternata) to study the effects of grape seedlings intercropping with Bidens species on the...

This paper mainly analyzed transit capacity matching between high speed railway and subway in comprehensive transportation hub.Combined with example and used TOPSIS method to evaluate the Beijing south railway station capacity matching condition, proposed reasonable suggestions to improve current situation.

This paper presents a self-adaptive fuzzy logic controller for a pH neutralization process which has been designed and implemented in real time process. The controller deals with the minimization of both the steady state error and time taken to reach steady state under varying operating conditions. The...

Population growth and the development of economic in Indonesia affect the increase in vehicle volume, especially in the city of Surabaya. The increasing of vehicle volume resulting in increased of direct-access to the city centre and causing arise of new railway level crossings. Furthermore, the increasing...

Indonesia is the third largest cassava exporter in the world. In the last 20 years, the Indonesian cassava exports was fluctuated and tended to decline, mainly to the Republic of Korea and Malaysia. The research purposes is to analyze trend exports of Indonesian cassava to The Republic of Korea and Malaysia,...

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...

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.%,...

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...