Atlantis Highlights in Engineering

Induction motors are the most widely used motors currently, because they have a simple construction, are relatively inexpensive, lighter and have high efficiency with an easy to maintain compared to DC Motors. However, in terms of setting the speed and torque of an induction motor it is not an easy problem...

Natural detergents can be an alternative to reduce the use of synthetic detergents that contain active ingredients that are difficult to decompose by the environment. Hibiscus leaf extract contains saponins which can produce foam and the enzyme bromelain from pineapple peel is able to lift protein stains...

Over the past 5 years, the achievement of the Risk Maturity Model (RMM) level value at PT PLN (Persero) UID Bali has not yet reached the target with a gap of 0.47 from the target of 4.19 at the end of 2024. The company’s lack of optimization in using the budget period 2018-2023 may be an indicator that...

Along with the vigorous development of cross-border e-commerce in China, the research on the cross-border e-commerce domain has also attracted great attention from the academic community. The research covers cross-border e-commerce development model, logistics synergy, trade cost and law. However, in...

Since the existing numerical simulation calculation methods of vacuum stacking combined with precompression soft base treatment are mostly applied according to the vacuum degree unchanged or linearly decreasing along the depth, in fact, with the passage of time, due to the cracking of the surrounding...

This paper presents the analysis of a cantilevered beam using both the commercial FEA software Abaqus and FEMCAS a new software developed for structural analysis. The theoretical approach is described. The results from FEMCAS were comparable with theoretical calculation as well as with Abaqus which shows...

With the deep development of global economic integration, more and more engineering contractors are actively participating in the international engineering market. In this increasingly active, competitive and complex international engineering market, the intensity of market competition has become an...

At present, a large number of aging frame structures in China are no longer capable of meeting the current seismic design requirements, and urgent seismic retrofitting is necessary. This study introduces an innovative retrofitting approach for enhancing the seismic resilience of existing frame structures...

The objective of this study described in this paper is to grasp the ultimate moment capacity of 50 m prestressed ultra-high-performance fiber-reinforced concrete (UHPFRC) composite box girder. The uniqueness of the prestressed UHPFRC composite box girder is no longitudinal reinforcement and no stirrups...

In the actual indoor localization system, the existence of non-line-of-sight (NLOS) errors is a very important reason for the reduction of localization accuracy Therefore, how to deal with NLOS error becomes a research hotspot in the study of localization technology. In this paper, a robust quadratically...

Design process scheduling is conducted by optimizing human resources or workers allocation to several tasks in project with several real constraints to achieve the objective, minimizing the project makespan. In real business case, despite the tasks are already allocated to the optimal workers, rework...

With continuously falling cost of renewable power generation and ambitious decarbonization targets, renewable sources are about to rival fossil fuels for energy supply. For a high share of fluctuating renewable generation, large-scale energy storage is likely to be required. In addition to selling electricity,...

This study presents a research of klampok watu plant (Syzygium littorale) including the Myrtaceae family. As far, only a few report about Syzygium littorale in leaves, fruit, stem bark or other parts. The stem bark of plant was extracted with an organic solvent and then fractionated (isolated) using...

Currently, the urban job-housing problem is increasingly severe, and scale effects strongly influence the results of studies. To achieve a more comprehensive and accurate analysis and assessment of the job-housing relationship in urban centers, this study takes Tianjin as an example, and with the help...

Based on the EPA running loss test procedure, running loss tests were conducted on two China6-conventional gasoline vehicles (ICE) and two battery electric vehicles (BEV). During testing, pollutants was sampled by summa tanks. The test results show that the THC emissions of BEV were about 50% of those...

The main bridge of Cao Lanh Bridge is a double-pylon and double-cable-plane PC cable-stayed bridge with a main span of 350 m. The main edge beams were cast in situ with form-traveler by the method of asymmetrical double-cantilever, that was, the concrete casting and cable tension of the main span were...

Accurate localization in industrial robotics is one of the crucial attributes. One of the most popular localization approaches in robotics is localization with LiDAR. However, when a robot enters a rough environment with smoke, dust or fog, the LiDAR sensor may provide inaccurate measurements. This paper...

Under the rapid maturity of 5G, live broadcast goods controlled by live broadcast scripts to form specific live "fields" are booming. The scope of live scripts has comprehensive factors such as personnel, anchors, goods, atmosphere, scenes, and promotion, and combined with the application of...

According to the processing principle of large-scale CNC gear hobbing machine, a high-precision on-machine measurement method for large gear pitch deviation using relative method and absolute method simultaneously is proposed. The mechanical body of high-precision on-machine measuring instrument with...

Carbon monoxide gas pollution as exhaust gas increases every year along with the increase in the number of motorized vehicle users. Carbon monoxide has harmful effects on the environment and human health and even leads to death. In this study, a CO gas gauge was created using the MQ-9 CO gas sensor to...

Granular piles, which consist of granular materials, are widely used as a soil improvement technique for increasing the bearing capacity of soft soil and reducing the settlement. In this study laboratory tests were conducted to find out the effectiveness of granular materials and the granular piles constructed...

This paper developed experimental research on the new 100N bipropellant space rocket engine. The bi-centrifugal swirl injector with high degree of technological maturity, high reliability and properties is used on this engine. The cold flow test, steady-state hot firing, pulse–mode firing, long life...

Energy storage methods will be a critical part of the future energy supply system, as demand is increased by electrification of domestic heat and take-up of renewable generation increases the variability of supply. Domestic storage units are likely to be key to this transition, and this paper will present...

With the widespread adoption of smartphones and IP geolocation technology, many enterprises offering e-commerce services are seeking to leverage offline environmental information to gain insight into consumer preferences and improve online operations. Among the various environmental variables, crowd...

Efficient and compact long-term heat storage material would enable effective utilization of renewable energy sources by balancing the long-term variations in production and consumption. However, current materials still require higher storage capacity, efficiency and reliability for large-scale use. Previously,...

The road network that is spread throughout the Palembang city certainly has different conditions depending on the use of the road, on some roads that are often flooded or passed by vehicles with excess loads become damaged more quickly before the achievement of the service life of the road, this road...

Aiming at the problem that it is difficult to collect the variables that affect the prediction of building energy consumption, this paper proposes a BP-LSTM neural networks prediction model based on the combination of natural factors and human factors. First, the three basic natural factors of sunshine...

This paper presents an experimental study on the tensile properties, impact toughness, and fatigue performance of 304/304L stainless steel used in LNG receiving station pipelines. The research obtained key performance indicators, including the tensile strength, Charpy impact energy, and the number of...

In view of the increasing myopia rate of teenagers, an intelligent bookmark based on a microprocessor is designed in order to prevent teenagers from myopia. The intelligent bookmark can help teenagers cultivate good reading habits, thereby reducing the myopia rate. The system is divided into a microprocessor...

Under the influence of water and external loads, the microstructure of loess changes, leading to a loss of strength and ultimately frequent engineering accidents. The fractal characteristics and influencing factors of the microscopic pore structure of unsaturated loess were investigated using nuclear...

The outliers in slope deformation monitoring data often contain important information. The influence of external environment, the failure of slope structure and the failure of monitoring instrument are the important reasons for the outliers. Rapid and accurate detection of outliers is not only the basic...

Different system conversion schemes can affect the reasonable completion state of self-anchored suspension bridges. To determine a reasonable system conversion scheme for self-anchored suspension bridges, a double tower steel-concrete composite beam self-anchored suspension bridge is taken as an example....

This article reports the results of a limited trial on the academic competence of students in chemical education. This limited trial also measured the level of student confidence and the truth of chemical concepts from a sample of 24 class 2014 chemistry education students who would and were taking thesis...

This paper presents the analysis of a cantilevered beam under parametric uncertainties using FEMCAS a new software developed for structural analysis. The theoretical approach is described, including linear analysis module with parametric uncertainties - Monte Carlo simulation, the Perturbation method...

The purpose of this research is to investigate the creation of hydrogen as an energy source through the interaction of aluminum with hydrochloric acid. Only in the presence of hydrochloric acid, which acts as a catalyst, does this reaction occur. The following are the primary benefits of employing aluminum...

To survive in the high competition, the SME need to determine and develop their superior internal capability. The aim of this study is to develop a conceptual model that could use to understand the relationship between core competencies and business performance in accordance with the external environment...

The reliability of the fatigue life of the contacts part of the electrical connector is an important aspect of the mechanical equipment reliability. Aiming at the reliability problem of fatigue life of 450 series multi-purpose spring electrical connector contacts part, A fatigue life calculation method...

This experiment was carried out to reduce excess heat in solar panels and increase the output power generated by the 100 Wp monocrystalline solar panel by applying perforated aluminum plates as a Passive Cooling Technique on solar panels. The energy source used is 12 W halogen lamps as a substitute for...

Accurate time failure predictions and improved geotechnical certainty in an opencast mine will lead to tremendous safety and economic benefits. This study utilizes interferometric synthetic aperture radar and ground-based radar data to conduct a back analysis on slope failures that have occurred in an...

A method of a dynamic analysis of a special kind of trailers with the central axle (axles) towed by truck is presented in the paper. Within the method, vibration and also strength calculations of frames and other components of the selected trailer can be carried out. Interface of MSC Adams software,...

Design of a low-speed single-phase permanent magnet generator obtained from further modification of a squirrel cage single-phase induction motor is proposed. Modification is done for rotor and stator parts of the induction motor. 10 permanent magnets are implanted in the rotor to get a sinusoidal output...

In the context of developing circular economy and achieving carbon neutrality as an important issue for China’s sustainable economic development, consumers’ green preferences for products and services are increasing, and such preferences will directly affect market demand and enterprises’ production...

The study examined three methods for developing a regional ensemble prediction system (EPS) to forecast wind speeds: dynamical downscaling, breeding of growth modes (BGM), and blending. We used the Weather Research and Forecasting (WRF) model to downscale the ensemble forecasts of the European Centre...

In this paper, an ultra low-voltage frequency divider for PLL (Phase Locked Loop) was designed using 0.13um CMOS process with 0.6V power supply. The frequency divider employs divide by 15/16 dual modulus prescaler based on phase switching, two programmable counters and the control module for prescaler....

In this paper, the performance of battery storage systems in combination with micro combined heat and power (CHP) systems are systematically investigated by computer simulations for the supply of single-family houses in various settings. As input parameters for the analysis, energy demand-time series...

The Wind power is one of the promising energy technologies, which can utilize wind energy as a source of renewable energy. So, in this case which a tool is needed, namely a wind turbine, but one of the problems that increase the wind speed in a low wind speed area. It must develop a device to increase...

With decreasing prices of batteries, business cases of electric storage systems reach profitability in commercial applications. However, for commercial storage systems to become economically attractive, many studies indicate that different use cases both behind and in front of the meter must be addressed...

Methane is one of the flammable natural gas that can be found in biogas. Because of its flammable property, methane is mostly used as fuel. This research designed a monitoring system that can monitor the methane concentration level. The instrument system consisted of a methane gas sensor as a gas detector,...

Aiming at the problem of power battery suppliers evaluation and selection from the perspective of risk, a two-stage risk assessment and selection model was constructed based on Trust Risk and Improved TOPSIS (TRIT method) focusing on lithium power battery suppliers to achieve the goal of improving the...

In light of the current complexity in production steps for prefabricated components within the prefabricated construction industry, as well as the significant proportion of costs attributed to molds and mold release equipment in overall production costs. The design of an automated prefabricated component...

This paper presents an experimental research of melting of paraffin inside a latent thermal energy storage. Experimental setup consists of a water-water heat pump, hot and cold water tanks and latent storage tank. Latent heat storage is a shell-and-tube type tank, consisting of 19 concentric tubes with...

This study aims to determine the effect of induction heating on tensile test specimens’ clamping products through the medium carbon steel materials’ engineering technique from heating using induction heating to heat the medium carbon steel. The research method used observation, interviews, literature...

In order to solve the problem of surrounding rock deformation during the construction of large-span bifurcated tunnels, this article takes the Yangang East Interchange project as the engineering background, and combines with the existing construction design scheme of large-span bifurcated tunnels, establishes...

In this paper, energy efficiencies of two heating systems with heat pump, latent thermal energy storage (LTES) and solar collectors that are working in moderate continental climate conditions were numerically analysed and compared. The two considered LTES roles are the heat source for the heat pump (LTES...

Horizontal axis tidal current turbine (HATCT) is one of the strongest devices to generate electricity using the hydraulic flow. These devices need to act under an optimum blade pitch angle to prevent power losses. In the present work, the blade element momentum theory (BEM) was used to initial design...

The heat generated during the working process of the relay directly affects the mechanical strength of the metal material and the dielectric strength of the insulating material. Sealed electromagnetic relays tend to be miniaturized. The effect of temperature on its working life is getting stronger. Therefore,...

A Mass Transportation Manufacturer (MTM) is a pseudonym for the company’s name as the subject in this study, faces significant challenges in its procurement process, particularly in acquiring components from foreign suppliers, which often results in prolonged delays. This delay in procurement has a direct...

The deformation of concrete dam can be regarded as the result of the synergistic action of hydraulic component, temperature component and aging component. According to the different component characteristics of deformation and the correlation of different time scales, a multi-scale combined prediction...

The construction of digital government is a new trend to comply with the digital transformation of the economy and society, and is also a new way and a new way to promote the modernization of the nation governance system and governance capacity. As a production factor, the data information of the electric...

Because the information exchange between the Internet of Vehicles (IoV) is mainly through the wireless network, which makes the IoV equipment vulnerable to attack, therefore, in the V2V communication of the IoV, Lei et al. proposed an effective certificate less authenticated key exchange protocol that...

In order to solve the influence of environmental factors on lightning electromagnetic field and improve the detection results, the distortion of electric field caused by environmental features, and given correction formula in the condition of electrostatic field, has been simulated. The results show...

Directorate of Information Systems is a unit that provides information technology services, at University X, that needs to perform at its best most of time. Its employees’ performance directly affects the unit performance. One problem in employee assessment due to its high subjectivity. Currently the...

The waste problem commonly is almost the same in every big city. When it is not managed properly, it will be piled up very quickly. The city of Jambi produces approximately 1,838.48 m3/day of waste. Organic waste originating from market waste in Jambi City is dominated by vegetable waste, so that its...

Through this paper there are presented some approaches regarding the experimental research of a walking test bed especially designed for children with ages between 4 to 6 years old. The proposed test bed consists of an exoskeleton and a treadmill. The exoskeleton has six actuation units for motion assistance...

Earthquakes are very likely to produce various geological disasters, and it is very important to study the stability and deformation characteristics of slopes under the action of earthquakes. In this paper, a three-dimensional numerical model of slope considering the structural section of rock body is...

Assessment is a part of educational process. One of the assessment roles is “assessment as learning” (AaL). The study aims to introduce a preliminary design for implementing AaL. The research, as developmental research, has been in a design step. The design was developed based on the genetic of AaL viewing...

Taking the water-rich pebble stratum under a subway tunnel as the engineering background, this paper explores the mechanical response characteristics of multi factor changes in shield tunnel construction to the tunnel stratum. Based on numerical simulation and combined with fluid structure coupling effect,...

Hydropower station load rejection test measured data may be due to various reasons such as measurement methods, there is a big interference and how to manage the decomposition, the measured stress analysis calculation error, pressure pulsation, also there is a big difficulty. Measurement data of a hydropower...

This paper discusses the construction method of human resource management and control system centered on post management. This method highly integrates the post management system with the recruitment system, appointment system, cadre selection system, training system, assessment system and salary distribution...

During the operation of an LNG receiving terminal, the fluids within the feed pipes are typically low-temperature media such as nitrogen and liquefied natural gas. The pipelines frequently operate under ultra-low temperature conditions, and rapid temperature changes often lead to issues of thermal expansion...

In freshwater fish cultivation, the quality and temperature also affect growth, each type of fish has different characteristics concerning water conditions and pond temperature. In this case, monitoring water quality in Gouramy cultivation. Monitoring of water and pond temperature is usually done manually...

The paper demonstrates the use of the response surface method (RSM) to carry out probabilistic assessment of the seismic bearing capacity of shallow footings seated near naturally occurring heterogeneous slopes. To this end, a pseudo-static loading is applied to a randomly uniform slope, which is homogeneous...

The debonding between CA mortar and track slabs has become a typical disease of ballastless tracks for high-speed railways. The interaction of track slab and CA mortar interface is relatively complex, and accurately simulating the bonding relationship between the two is very meaningful for the numerical...

Utilizing crushed rocks in air convection embankments is one of the methods adopted to facilitate heat exchange between foundation soil and the atmosphere. The relatively large pore space provided by the air convection section allows for air to overall decrease the temperature of permafrost underneath...

This paper takes the deep deposit slope of Longwangxi as a case study. Using the method of strength reduction, the stability of pre-disturbance and post-disturbance conditions is calculated separately to investigate the influence of human-induced disturbances during bridge pile construction on slope...

The increasing use of coal fuel has an impact on environmental emissions, in an effort to reduce the impact, the application of clean coal is sought, one of which is through coal gasification. Coal gasification is a pilot project at PT Bukit Asam, in the coal gasification process it will produce a by-product...

In the area of water treatment, nanotechnology offers materials that can be used effectively for the detection and removal chemical and biological contaminants from water. In this study silver titanium nanoparticles (AgTiO2) were synthesized using liquid impregnation method for use in waste water treatment....

The fixture is an important part of the machining accuracy in machine production. In this paper, the shaft hole parts are taken as the research object, and the adjustable drilling jigs of the hole parts are designed. According to the requirements of the six-point positioning principle of the fixture...

Numerical analysis of domestic hot water solar system with sensible and latent thermal energy storages (TES), for specific residential building, has been presented in this paper. Numerical models of systems are developed in the Trnsys environment, consisting of the sensible or latent thermal energy storage...

In this study, the author intends to improve online learning media (E-Learning) which is widely used by all educational institutions in Indonesia and even throughout the world. Progressive Web Application (PWA) itself is the ability of an application to have features such as web-based applications in...

With the development of E-commerce, the logistics industry develops rapidly at the same time. The negative influence lead by logistics information security can not be ignored. In this paper, we proposed a method of logistics information security based on blockchain technology to handle the issues of...

The pole array directly influences air-gap filed distribution and hence output torque performance especially in surface-mounted PM machine (SPM). The fundamental wave of air-gap magnetic flux density determines the average torque, and harmonic generates torque ripple. In generally, there is a trade-off...

The development of e-commerce in Indonesia is increasing, now make e-commerce as the land of very large data. The data is also used not only as a content in e-commerce, but with the existence of Web Mining, the data is processed in such a way that will generate new information to be utilized in system...

This study aims to describe the difficulty of the teacher in distinguishing the implementation of discovery and inquiry learning models in science learning and the factors that led to the scientific thinking skills of junior high school science teachers. The case study design used in this study involved...

Fillers strengthen cohesiveness and fill void in the mixture of asphalt, which affects engineering properties of this mixture. Ordinary Portland Cement (OPC), lime and stone dust are generally used in the asphalt mixture as fillers. The influence of different fillers of various contents on volumetric...

Aiming at the characteristics of existing regular masonry structures dominated by the first vibration mode deformation, a two-dimensional practical simplified calculation method for seismic strengthening using prefabricated RC wall panels is given by the continuum approach. In this paper, the masonry...

The article deals with the proposed algorithm for calculating the frictional power loss generated by the influence of sliding in bodies during their rotation under contact stress. PTC/Creo Parametric CAD system was used for creation of parametric 3D virtual model of rolling bearings due to FEM analysis....

A major factor in the power system operation is the desire to maintain system security. System security involves a design to keep the system operating in the event of interference or failure. Interferences in electrical power systems are divided into generator, transmission, and load. Failure or interference...

With the development of Internet technology, China consumes millions of Consumption Internet products, and the business models of different products vary greatly. In order to explore the law of Consumption Internet Products and guide enterprises to carry out the R & D and operation of Consumption...

In this paper, to develop an automatic discrimination method for the causes of pavement diseases, the Chongqing Inner Ring Expressway is used as an engineering case to analyze the typical characteristics of asphalt pavement diseases in different road sections. The feasibility of data dimensionality reduction...

3D geological modeling technique, as a comprehensive characterization method for oil and gas reservoirs, is widely applied in the process of oil and gas field development. Addressing the challenge of unclear geological characteristics in the early exploration stage of atmospheric shale gas reservoirs,...

Electrifying the domestic heating sector is mandatory to decarbonize the buildings sector but leads to additional peak loads in the public grid. Air-source heat pumps the mostly used technology in this regard even though, they suffer from lower efficiency during times of high heat demands. The usage...

In order to carry out the research program of geotechnical engineering investigation application based on three-dimensional modeling methods, and to deeply explore the application of aboveground and underground structures construction and integrated fusion and integration methods in engineering geology,...

Starting from the statistical data in the field, according to which the most vulnerable road users are pedestrians, with the highest number of deaths, the present research deals with the problem of the impact between a vehicle and a pedestrian. The main purpose of this study is to carry...

The location of the solar panel installation affects the intensity of the light absorbed. Of the three test locations; on the roof, on the ground, on the water, the most significant increase in light intensity is on the roof. The position of the solar panel is at 30º, the average light intensity is 80300...

The study of vulnerability is an important basis for the evaluation of warfare damage in China's weapons and equipment, and it is also an important part of the research on the viability of weapons and equipment in China. In this paper, according to the damage level principle of the aircraft, the damage...

Battery Storage Systems are increasingly deployed in the grid for commercial applications and ancillary grid services. Current state-of-the-art systems suffer from several drawbacks regarding safety, efficiency, and costs. This paper presents a novel approach that avoids major challenges for the production,...

This contribution introduces an energy management concept for multi-use applications of PV battery storage systems based on reinforcement learning (RL). The approach uses the state-of-the-art Proximal Policy Optimization algorithm in combination with recurrent Long Short-Term Memory networks to derive...

With the progress of domestic industrial and commercial enterprises, economic development and the promotion of China's international status, the construction of business administration discipline has been widely valued during the 13th Five-Year Plan period, and the construction effort has been significantly...

As a crucial component of the boundary conditions on both sides of the high-speed railway track-bridge system, the seismic response of the flexible subgrade structure is markedly different from that of the bridge structure. This difference has been increasingly pronounced with the widespread implementation...