Atlantis Highlights in Engineering

This article describes mechanical differences in behaviour of groove squared profiles, which are made of carbon composite material. Specimens were made by winding of prepreg carbon fibre filament around Rexroth profile. Afterward was epoxy of first specimen cured in shape form and the epoxy of second...

The research with the title usage of zeolite and chitosan composites as slow release fertilizer had been done. In this research, fertilizer was made by mixing zeolite with NaNO3 as a source of macro nutrients (nitrogen) and chitosan as a crosslinks which will later be used to provide slow release function...

Additive Manufacturing (AM) is a breakthrough in manufacturing technology based on a layer by the layer printing process through various raw material input techniques. Objects to be printed using a 3D model design by adding raw materials to a 3D printing machine are opposite to subtractive manufacturing...

Dynamic analysis is an important tool for assessing and managing the risks associated with seismic events. Seismic events result from ground ruptures. The magnitude of a seismic event depends on the size of the rupture and the stress drop, which respectively translates to displacement and released energy...

How to conduct a wide range of problem analysis on production line work in a short time and standardize, its work has become a major difficulty for enterprises to improve work efficiency. This paper takes M company's Rail car assembly as an example to conduct the job optimization. It uses the k-means...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 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...

Cross-border e-commerce is a new type of transaction that upgrades the Internet + international trade. In this paper, a research model is constructed with cross-border e-commerce as the independent variable and the competitiveness of small and medium-sized enterprises as the outcome variable, to explore...

In order to quantitatively reflect the influence degree of various random factors on the reliability of the reducer system, the gear reducer is taken as the object of research in this paper. Firstly, the gear contact fatigue is taken as the main failure mode, and then the tooth contact stress response...

This study has been conducted analysis of contaminant and nutritional content of red galangal (Alpinia purpurata K. Schaum) simplicia. Simplicias as one of post-harvest processed form. Simplicia is a material to produce herbs medicine. So that, simplicia quality must be considered. The quality of simplicias...

In the dynamic realm of job shop scheduling (JSS), where decisions regarding the order of job processing have a significant impact on the initial state and performance of the system, addressing the effects of priority changes becomes crucial. To address this challenge, the first part of the study proposes...

According to the land formation project of Shenzhen Marine emerging industry base, the influence of three kinds of reactor preloading, vacuum preloading, on the adjacent pile foundation at different distances is studied by two-dimensional finite element analysis method. The results show that (1) the...

Power grid engineering is an organic component of national infrastructure, which provides strong support for national economic and social development, and cost control is one of the core contents of power grid engineering construction, which has an important impact on the investment efficiency of power...

Hybrid Electrical Storage could be considered a solution for developing sustainable transportation systems. But, are they reliable? In terms of life span, reliability, availability, and range, conventional vehicles such as cars, buses, trains are better than electrical or hybrid ones. However, traditional...

In response to the low assembly level of the existing steel structure flexible shelter system, the use of welding as the connection method for supporting components, and the unreasonable arrangement of energy dissipation buffer layers, resulting in slow installation speed of the steel structure shelter,...

According to the current practice, the unit shaft resistance of piles based on ground parameters is calculated usually with the $$a$$-method or the $$\beta $$-method. And while the physics behind these methods is simple and adequate for calculating the shaft resistance of piles in clays and sands for...

Huge volume of reviews by customers published on different products websites has become an important source of information for both customers and companies. Customers require the information to help them in decision making for buying products, while companies analyze these reviews to improve their products....

Green energy likely wind energy, solar energy, biomass energy, and tidal energy, with the characteristics of being free, natural, and free from pollution problems, and renewable. In this research, we used air conditioner with split (AC Split) model has a large energy potential that could be utilized,...

This paper compiles and organizes in-situ tests from publicly available literature pertaining to deposit strata in Southwest China. A database was constructed, encompassing shear strength parameters, water content, particle size distribution, and sample size. Based on this database, the overall distribution...

Laval nozzles for important component in high-speed precision air-floating spindle gas drive systems, to establish a cross-sectional ratio is calculated by analysis of their simplified model of the two stages. Use of computational fluid dynamics (CFD) to simulate the Structural parameters of Laval nozzle--...

Higher order thinking skills (HOTs) are needed by the students of chemistry education, because they will become teachers who will be able to teach HOTs to the This research is the application of concept map learning models with inquiry strategies to train higher order thinking skills of chemical education...

Massive energy consumption and pollution from the environment have emerged as major issues. A new alternative energy sources is a critical solution. Nowadays, the use of air conditioning machine also contains wasted heat energy resulting from the work of the outdoor unit. This research is an experimental...

Number of visitors to engineering laboratory restrictions were carried out, because it could lead to crowds of students, resulting in the transmission of the SARS-CoV-2 virus that causes covid-19. The Telecommunications Engineering Laboratory is one of the facilities at the Sriwijaya State Polytechnic,...

The accurate and rapid identification of radio-nuclide is an extremely important matter of radioactive material control and public security check. The classical detection method using γ-ray spectrum depends on large numbers of γ-ray measurements, which means a long time cost, especially when the radioactivity...

In this paper, results of the demonstration project Hybrid-Optimal are presented. The project partners are installing a hybrid battery storage, which consists of a Vanadium Redox Flow Battery (VRFB) and a Lithium-Ion Battery (LIB), in an energy cell with high photovoltaic (PV) generation. First, this...

With the development of economy and society, the flow of second-hand sailboats is increasing day by day. The sales market of second-hand sailboats has great potential. Studying the factors that affect the pricing of second-hand sailboats will help merchants to formulate accurate marketing strategies...