Advances in Engineering Research

Self-damping test and analysis for one type of diameter expanded conductor JLK/G1A-530(630)/45-33.75 are performed, and analytical expression and frequency response characteristics are obtained. Comparison and analysis between normal conductor JL/G1A-630/45-45/7 and diameter expanded conductor JLK/G1A-530(630)/45-33.75...

Strategic environmental assessment (SEA) process can be broadly defined as a study of the impacts of a proposed project, plan, project, policy or legislative action on the environment and sustainability. In this research, SEA process has been aimed in order to incorporate environmental and sustainability...

The Tut river basin covers an area of 846 km2 comprises of seven sub-watersheds namely Tuichar Lui, Dap Lui, Tlubing Lui, Chal Lui, Raiseh Lui, Telva Lui, Zawngek Lui. The drainage network of the sub watersheds was delineated and mapped using Survey of India toposheets and satellite imagery (IRS P6,...

Through dividing and analyzing the historical development of Chinese sports television stage, this paper summarizes the rules of development, in order to promote the better development of China's sports TV broadcasting.

To realize the efficient exploitation of tertiary recovery for the class II reservoir and guarantee the stable replacement of the output, by comparing the thickness and reserve of each series for the class II reservoir at north block 1 of Labei, the article gives preference to S 13~S 3 as the secondary...

In this paper, a composite material model with ellipsoidal conductive particles was used to establish an effective conductivity model for studying graphene quantum dots (GQDs) solution. By comparing effective media theoretical (EMT) model, porous flow theory model and the general effective model (GEM),...

With the wide application of modular multilevel converters (MMC) in high voltage and high power areas, many open loop methods are proposed for MMC. However, the stability of MMC open loop control system has not been solved so far. Aim at this problem, on the base of Lyapunov theory and persistently and...

The using of artificial reefs can effectively improve the ecological environment of the sea area, restore the vegetation of the sea bottom, and provide a place for fishes to inhabit and avoid the enemy. According to the regional characteristics of the coastal water of Beidaihe,The floating trajectory...

This paper elaborates the fluid-structure coupling electromagnetic heat transfer mathematical model of the engine cooling system, combines with finite element method to build the fluid-structure coupled model of water cooling system for the water cooling system, the uniformity of the flow field and temperature...

This experiment aimed to reveal the relationship between the number of protozoa and the pH of inoculum in incubating different treated Colleus amboinicus in vitro technique. A sample of dry Colleus amboinicus was powdered and then treated with four treatments. There were four treatments including Colleus...

This study investigates the characterization and processing of lithium (Li) and rubidium (Rb) ores from a new deposit using multiple analytical techniques. For mineral characterization, Mineral Liberation Analysis-Scanning Electron Microscopy (MLA-SEM), X-ray Powder Diffraction (XRPD), and X-ray Fluorescence...

Coconut oil as a surfactant can be derived from renewable, cleaner, and purer resources than petrochemical-based raw materials. Therefore, this study was conducted to obtain the required criteria for forming a surfactant such as diethanolamide. During the analysis, diethanolamide surfactant was produced,...

Planning to replace wooden sleepers with synthetic sleepers on bridge BH 534 must be done because using wooden sleepers on this bridge is less efficient. The inefficient use of sleepers on the BH 534 bridges is because the sleepers on this bridge still use the type of wood sleeper where the nature of...

Personal information protection impact assessment, as a pre-risk management method, plays a crucial role in the personal information protection system, helping to accurately identify risk points, formulate targeted protection strategies, and thus improve the overall level of personal information protection....

The lateral force coefficient of pavement is a critical indicator for assessing the technical condition of road surfaces and a key measure of driving safety. Therefore, enhancing the accuracy of data results by correcting for various influencing factors during the detection process is essential. This...

With the cross-application of psychology, design and other multidisciplinary disciplines, the research method of combining artistic and scientific thinking has become a new trend. As a technical means to objectively reflect visual concerns, eye movement experiments have been gradually applied to the...

The use of geo-nano TiO2/SiO2 self-cleaning material as a coating prototype for deck line pipe to stop corrosion on tanker ships was successfully studied in this study. The objective was to produce a synthetic material that would be able to clean itself and be applied to tanker ship deck line pipes....

This study aims to optimize the design of molds for prefabricated building components. By utilizing Revit software, a digital parametric model encompassing both prefabricated concrete components and their corresponding molds has been established. Through precise adjustments to mold dimensions and critical...

Building constructions found in Indonesia generally use concrete as the main structural material. Even though it has advantages, concrete also has disadvantages in its use, namely that concrete has brittle properties so that it is practically unable to withstand brittle tensile stress. There are many...

With the rapid development of expressway construction, the construction of construction environment supervision system is particularly important. This paper first summarizes the general situation of highway engineering, and expounds the significance of highway environmental supervision index system research....

The manual attendance method for students at the Adisutjipto Institute of Aerospace Technology is the background to this research to attendance system to minimize the loss of attendance data and cheating in taking attendance. By utilizing Android-based Near Field Communication (NFC) technology, student...

To address the issue of environmental pollution caused by domestic inorganic waste, a technology capable of efficiently classifying waste types with high accuracy is needed. This study aims to explore the use of YOLO (You Only Look Once), an algorithm based on deep learning using convolutional neural...

Changes in the hydrological cycle affect the equilibrium of water entry and exit in reservoirs. As reservoirs age, sediment buildup reduces their functionality. Telaga Tunjung Dam was built to support irrigation, clean water supply, flood control, and tourism. Telaga Tunjung Dam is located in Timpag...

To improve the seismic resilience of ultra-high voltage (UHV) converter stations, this study focuses on the seismic response and seismic damage and vulnerability analysis of a 750 kV long-span GIS portal steel frame. A nonlinear finite element model was established using ABAQUS and SAP2000, considering...

Indonesia is the first exporter of edible bird’s nest commodities to China. Therefore, the Agricultural Quarantine Agency is one of the agencies responsible for ensuring the fulfilment of the requirements requested by China. One of these conditions is the upper limit of nitrite content in edible bird’s...

A composite of CuS–graphene was prepared via a mild experimental condition, using copper nitrate, EDTA, glucose, carbon disul de, ethylenediamine and graphene oxide as the raw materials. The composite was characterized by X-ray power diffraction, X-ray photoelectron spectroscopy, transmission electron...

With the development of rural finance in Guizhou Province, China, the farmers' income in Guizhou Province has been growing. To study the influence of rural financial development on farmers' income growth in Guizhou Province is beneficial to promote the development of rural finance in Guizhou Province...

Human walking with multiple joints movement, The degrees of freedom is more, Movement is complicated, multi-objective and multiple constraints of continuous function, Common optimization algorithm is required more design variables and large range of computing information, convergence difficulties are...

A special-purpose testing device for bearing preload was developed. The relationship between preload and system natural frequency was researched with the test rig. The test data of bearing preload changing with system natural frequency was fitted. The results show that the preload test rig has reflected...

A spectrum sensing algorithm, named as MESE algorithm, based on maximum entropy spectral estimation was constructed in this papers. Frequency domain analysis was introduced into the spectrum sensing, peak to average power spectrum amplitude ratio (PAAR) was taken as detection statistics, Detection threshold...

Using COMSOL Multiphysics software established finite element models of the 2D axis symmetric and the 3D for the detection sensor of metal particle. Under different models and parameters, containing particles in different positions of five models, excitation frequency, turns ratio, the distance between...

In order to study the changing regularity of rubber particles impact on self-compacting concrete deformation performance, with SCC30 strength of self-compacting concrete as the base, with different amount of rubber particles volume instead of fine aggregate in self-compacting concrete sample, preparation...

As a new research field, network science is gaining more and more attention with the networking of human society. Urban traffic is a kind of typical complex network, the analysis of its property is becoming a hot topic. The research of the urban traffic network congestion is presented in this paper....

With the continuous growth of energy load, causing environmental problems have become increasingly prominent. Nitrogen oxides and sulfur dioxide and other gases cause serious environmental pollution. Harm of carbon dioxide, soot and heavy metals is increasingly prominent. Therefore energy conservation...

Transient electromagnetic method has gradually became a popular geophysical prospecting method in recent years in China and rest of the world. Considering the complexity of the transient electromagnetic theory, the theory of technology is still imperfect, especially in the area of 3D inversion processing...

As an essential equipment, the fan is widely used in industrial and civil fields for gas compression and gas delivery. Though the cooling fan can keep us comfortable temperature, it bring the annoying noise. Usually noise reduction will first be conducted to the cooling fan, however, the sound quality...

A resource-based method for completely removal of SO₂ from flue gas by utilizing recycling manganese hydroxide (Mn(OH)₂) as an absorbant was proposed, which utilized catalytic oxidation of the manganese in the air on the oxidation of sulfur dioxide to soluble sulfate while removing impurities by filtration...

In this paper, we study the -distance colorings and -distance edge colorings of path double graphs which are based on the semistrong product. We shows that two formulas about -distance and -distance edge chromatic number of path double graphs vary with .

This work aims at modeling and designing a transmission pole structure for further investigation of the economic benefits associated with various grades of steel. Indeed, it was necessary to develop a population of possible design cases, to check structural safety, from which were selected the less expensive...

This paper introduces the technology of activating CuCr50 alloy powder by MA(Mechanical Alloying) and sintering CuCr50 powder by SPS(Spark Plasma Sintering). It analyzes the effect on electrical conductivity and hardness of CuCr50 alloy when Cu powder in different morphology. The results indicate that...

The ground state properties and equation of state of the silicon clathrate Si46 intercalated by Ba atoms are investigated by first-principles calculations based on the plane-wave basis set with the generalized gradient approximation (GGA) for exchange and correlation. Some thermodynamic properties including...

Rigid polyvinyl chloride (R-PVC) foam sheets were prepared in a continuous extrusion foaming system by using supercritical CO2 as the foaming agent. The effects of acrylic resin (ACR) on the rheological properties of PVC were investigated using a Brabender torque rheometer while other basic formula remained...

There are the problem that it must be given the reference standard sequence ahead according to the experience or statistics method in the classical grey entropy relation for fault diagnosis. But it is often lack of objectivity and high accuracy degree. The paper introduced one advanced Fuzzy C-Mean cluster...

An experimental work is obtained for the test force displacement curve of functionally graded Shape Memory Alloy (SMA) laminate subjected to three point bending test. The laminate is uniform and composed by five layers including three SMA layers and two ceramic layers. The relationship between the test...

Adopting high performance buffer is the foundation of the landing gear on the helicopter. Based on established models on Adams/Aircraft, a novel type of series double cavity buffer on the landing gear is investigated by dynamic simulation. Corresponding simulation and analysis are achieved, which is...

A kind of hydro-mechanical continuously variable transmission (HMCVT) is put forward on the basis of the power split fundamental principle. The equations of speed, torque, power and efficiency characteristics of HMCVT are established according to the transmission principle in this paper. The analysis...

A Escherichia coli strain producing phytase named DH5α was chosen from four E. coli stains, the enzyme activity was 17.88 U/mL after fermented at 37°C for 2 days. The enzymatic properties of crude enzyme solution were studied. The optimal temperature was 55°C; optimal pH was 2.5 and 7.0, enzyme had certain...

With the growing demand for security products, intrusion alarm system, based on leaky cables, is favored by majority of enterprises, with advantages of system stability, high concealment and installation location unlimited. Traditional intrusion detection method relies on signal amplitude threshold....

In view of the current increasingly serious problem of petroleum hydrocarbon pollution in water bodies and the lack of effective pollution control technology, the attapulgite is used as the adsorption medium in this study. Firstly, a series of laboratory experiments (roasting, Acidic, and organic modification)...

Nowadays, the parametric design is one of the design approaches or method that architect and designer believe can be a tool for analyzing the possibility of geometric deformation and easily anticipating it by changing parameters. The parameters were changed through the parametric design software, which...

In the world practice of hydrocarbon reservoirs design there is the steady tendency of rate increasing for underground reservoirs design in impermeable rocks. Design of underground reservoirs that are created in rock-salt sediments is intensively directed by the geotechnological method. It is determined...

The aims of this research is to describe the adoption process, the reason of adoption sustainability and the adoption rate of Jajar Legowo Planting Technology towards farmers in Bantul Regency. This research was conducted by using simple random sampling based on the percentage of the application of Jajar...

According to salt expansion and strength parameter index c and φ of sulphate salty soil, we assume that three-layer soil body of salty soil is destroyed. Assuming the network slippage diagram and using rigid-plasticity balance theorem, the calculation method of bearing capacity in salty soil area is...

Strengthening of parts and units of machines, increased reliability and longer service life are an important task of modern aerospace industry. As promising materials for protective-strengthening coatings, matrix composites based on ternary system Fe-B-FenB are offered. The aim of the research was to...

The metabonomics method was employed to detect and analyze the exudates of reed root under BPA stress. PCA(Principal component analysis)and OPLS-DA(Orthogonal partial least squares discriminant analysis) used to identify the main potential metabolites variation with and without BPA addition, 64 compounds...

Pokoh Kidul is one of the villages in Wonogiri District, Wonogiri Regency which is very strategic for the development of agro-industrial tourism. The fig plant is one of the main plants in Pokoh Kidul. Understanding and knowledge of harvest time, fig processing by Posdaya Lancar Barokah needs to be improved...

Digitized India is used to connect rural areas with high speed Internet. As a result, it is used to reduce crime, manual power, documentation and also increases the job opportunities. Nowadays people are facing many problems when they forget to carry the driving license and also to reduce the corruption,...

On the basis of relevant enterprise development theories, this paper conducts regression analysis on the financial data of hundreds of leading listed companies on GEM in China to study their development ability and existing problems. Through empirical analysis, it is found that the internal ownership...

This study focuses on the environmental issues of mining (related) activities in Mongolia, with a focus on soils in the coal mining areas of Baganuur and Nalaikh. Besides the ecological components (including erosion), also the socio-economic conditions are of importance for the derivation of recommendations...

In this study, a simulation will be carried out that analyzes the dynamic motion of the Tight lock coupler on the LRT train. This analysis aims to get the angle value at different curvature radius. The bend radius of the selected railroad tracks is R87, R95, and R1100. The Autodesk Inventor simulation’s...

Energy consumption is increasing worldwide. Dwindling fossil fuel resources and increasing greenhouse gas emissions have fueled global interest in alternative energy systems. One of the potential renewable energy sources in Indonesia is solar energy because Indonesia is located on the equator, which...

Fluid mechanics is one of the important disciplines in civil engineering. It studies the movement of fluids under static and dynamic conditions. Hydraulics, which is related to this, is an important branch in civil engineering. It mainly focuses on the movement of water, water pressure, water flow velocity,...

The study described in this article aimed to assess the hydrochemical characteristics and heavy metal pollution index of groundwater in the Gorkhi Terelj of Nalaikh district, located in the northeast part of Ulaanbaatar, Mongolia. In this study, we have used 91 groundwater samples, which were collected...

Urban green redevelopment projects often reshape physical landscapes, while producing uneven socio-spatial outcomes. This study proposes a GIS-based spatial modeling framework to evaluate the impacts of a high-profile green redevelopment case: Miyashita Park in Tokyo. Combining geospatial datasets (2014–2023)...

Scholars in the electrical field hope to use catalysts to improve the curing system of acid anhydride epoxy insulating materials, so as to solve the problem that a large number of waste insulating materials can not be effectively recycled. One of the most important research directions is to select a...

One of the popular UAV applications in the logistics sector is the use of UAVs as couriers to deliver goods to customers’ homes. In this application, the UAV must be able to follow the given trajectory while avoiding the existing obstacles to get to the customer’s house. To fulfill this, UAVs require...

To treat high free fatty acid feedstock in biodiesel production, the reduction of free fatty acid by esterification in continuous reactive distillation column was investigated. In this work, ethanol and crude palm oil (CPO) which the molar ratio of ethanol to oil was 8:1 were selected as reactants with...

Nose wheel steering control system is the kernel of the ground maneuvers, and has its own notable functions and features. After the introduction of Principle and State of nose wheel steering system, this paper computes the damping of aircraft's shimmy and gives the simulation analysis of damping functions...

In this research we explore the feasibility of using commercial gasoline to extract the ethanol from the ethanol solution to produce gasohol. The experiment simulated a 3-stage countercurrent extraction process. Commercial unleaded gasoline with various octane number (92,95,98) was used as solvent to...

This paper studies online monitoring of SS series locomotive braking and wheel ovalization. Two displacement sensors were used to detect real-time displacement amount of brake actuator and tire tread, which were calculated by IPC for real-time monitoring of braking remission, braking, brake shoe wear,...

Reliability-based design optimization (RBDO) is a more rational optimization design method due to its consideration of the structure reliability requirements. A new RBDO-kriging method that combines kriging agent model and covariance matrix adaptation evolution strategy (CMAES) is proposed to solve the...

In order to test the mid-strain-rate, a specialized fixture that can be installed on the MTS809 test machine is designed. A three-dimensional solid model of the fixture was established with SolidWorks, and multi body dynamics simulation analysis on the tensile process of dumbbell shaped flat specimens...

As a low carbon, environmental protection, energy saving and healthy travel mode, public bicycles are being popularized and popularized in many cities all over the country. In the public bicycle service system, the location of the bicycle rental and the allocation of the number of bicycles, locks, and...

In order to obtain better mechanical properties by exploiting the advantages of different materials, a topological design method of compliant mechanisms multiple materials was proposed. The multiple materials interpolation model for topological design of compliant mechanisms was established using the...

On the premise of fixed cement slurry consistency and sodium silicate concentration, adjust the content of slag powder design 8 groups of ratio, cement and sodium silicate double liquid grouting material mix design and test research, through the collation and analysis of experimental data, obtained the...

With ethyl acrylate, acrylic acid as monomers, an intelligent carrier material (PAE) was synthesized, and its swelling properties at different pH values, its cycle characteristics as well as its release control performance for inhibitors in alkaline solution were studied. The results indicate that the...

In this work, Y(OH)3:Eu3+ nanotubes with 2-3 µm in length and 50-300 nm in diameter have been successfully synthesized on a large scale by hydrothermal treatment of the corresponding oxides in pure water. In addition, Y2O3:Eu3+ nanotubes could be obtained by calcination of Y(OH)3:Eu3+ nanotubes in air...

In this study, polyurethane elastomer containing sulfonic acid based was synthesized by two steps. Poly(tetramethylene ether) glycol with 2000g/mol number average molecular weight were used as soft segment, 4,4-methylenebis(phenyl isocyanate), and 1,2-dihydroxy-3-propanesulfonic acid salt were used to...

Embankment dam leakage may cause devastating consequences and its early detection plays a significant role in the stability of embankment dam. Conventional dam leakage detection methods, such as piezometric tube or osmometer, are restricted by limitations of spatial distribution and high costs of instruments....

Based on risk assessment theory and "N-1" safety criteria, aiming at the situation of fault and power recovery in distribution system with distributed generation (DG), load bus loss and line overload and they comprehensive risk index are proposed to assess the risk degree of system, and find the vulnerable...

Rare earth elements (REE) are important mineral resource in China, especially in Jiangxi province, Inner Mongolia. There is abundance of tailings in the REE mining area, which is harmful for the ecosystem and environment. Eucalyptus is one kind of tree which has often been used in the in ecological restoration...

Input data necessary for synthesizing accelerograms are usually derived from seismic behavior of the construction site or from a statistical analysis of a set of recorded accelerograms which correspond to this particular construction site. As seismic performance of the site is independent of the structure...

This paper adopted the thermogravimetric analyzer, studied on the gasification reactivity of Xinjiang Zhundong coal. Researched gasification reactivity of different coal samples such as demineralized coal and coke with catalyst. Studied the influence of alkali metal on coke gasification process. After...

Using the analysis of the design goals for a new car the basic structure type of this new car was determined. Under the presupposition of giving power unit, the various of matching scheme of driveline and engine was selected preliminary. The vehicle model was construced by using AVL-Cruise software,...

Water quality is one of the factors that influence the cultivation of vannamei shrimp. Therefore it is necessary to periodically monitor water quality. In this study it was designed to monitor pond water quality parameters based on Wireless Sensor Network. This system is designed to monitor the parameters...

In order to understand the situation of land use in Karst and the corresponding trend of variation in the future 30 years, based on the geographic information system (GIS), the dynamic variation of land use in Karst wetland has been analyzed by using the Landsat pictures in the year of 1990, 1995, 2000,...

In this paper, the research status of air drying articles design in college Apartments is analyzed, and functional impairment and design flaw in use are discussed; through the analysis of drying habit and drying function needs of college students, the college apartment air drying article is re-considered...

A pot experiment was conducted to study the effects of soil application of selenium on the growth and selenium accumulation of different tomato varieties. The results showed that there were differences in the biomass, selenium content and selenium accumulation amount of tomato varieties. The biomass,...

Railway bridge with the warren type truss structure in the Sumatera region is an infrastructure has existed since the Dutch colonial era. Bridge is used as a mode transportation for natural resources of coal. The construction of railway bridge must always be monitored and evaluated for the feasibility...

Research is conducted to determine the chromium content in rice flour which is fermented with bakery’s yeast. The procedure involves several steps including sample preparation, fermentation, making crude bromelain enzymes, making YHE (Yeast Hydrolysate Enzymatic), and determining the chromium content....

The porous carbon materials were prepared by the following processes of evaporation induction self-assembly (EISA), thermal polymerization process and calcination step at high temperature with the nano-zinc oxide as a hard template and phenol resin as carbon source. The adsorption performance was investigated...

Based on the mathematical model of diesel engine, marine generator and load, the simulation operation has been run by MATLAB. The simulation system of ship power station is established by using the mixed programming technology of LabVIEW and MATLAB. The simulation operation results show that the generator...

For problems that there is common-mode voltage in non-isolation three-phase three-level V2G integration system, the common-mode equivalent model was established. Meanwhile, it revealed that DC link neutral-point potential imbalance would limit the effect of common-mode voltage suppression. The analysis...

The frequency hopping communication implements the communication in the process of continuous and irregular jumping frequency, widely used in military communications and civilian communications. At present, the research on the modeling and prediction of frequency hopping codes by using chaos analysis...

UHV equipment charged instructions plays a very important role for the maintenance of workers' personal safety. Low-voltage side usually use the electroscope, but there is no appropriate electroscope for the high-voltage side. As the voltage increases, the greater the safety distance is required, the...

The particle shape is a key factor in the strength and compatibility of granular material. To investigate the evolution of the particle shape of two kind of sands. The quartz sand from Fujian and the calcareous sand from the South China Sea, were chosen for ring shear tests. The sieving method and laser...

This article through the concept, function and basic content analysis method of software engineering, the application of software engineering method and related technology in the development of computer application system, so as to provide some technical reference for computer software development. Today,...

Phytodiversity of urban specially protected natural areas (SPNA) was studied using the city of Sevastopol (Crimean Peninsula) as a case study with specific focus on the Maximov’s Dacha Natural Park (83.9 hectares) (SPNA) situated in the Khomutova ravine on the site of the former estate. The levels of...

This study aims to determine the types of cocoa plants and family relationships that exist in Kampung Makian Village and Papaloang Village. The research method used a descriptive method by looking at the morphological markers of the cocoa plant as a diversity differentiator. The analysis used to determine...

The generation, development, and applications of modern organic analysis was introduced. Emphases are put on two parts: applications of modern organic and biological analysis to life science and pharmaceutical analysis; applications of modern organic and biological analysis to organic analytical sepa-...