Advances in Engineering Research

A deployable mechanism applied in the aerospace with twist springs and links driving, locking function is described in this paper. Dynamic analysis on this mechanism has been presented, and dynamic simulation has been implemented following the results of analysis, the dynamic characteristics of mechanism...

With the rapid development of social economy, the rural land management mode of China's extensive is difficult to adapt to the requirement of rapid development, People have a further understanding of the importance of the rural land circulation, and national policy has also been adjusted for the use...

A dynamic sensitivity method is proposed to evaluate the impact of generators’ reactive power on the recovery of key bus voltage in a system post-fault dynamic duration to improve the problem of delayed recovery voltage. Voltage delayed recovery existed in actual power grid is simulated on Guangdong...

A wide range of high precision work station can today be using various fields. The position precision will directly determine the precision and ultra precision processing equipment machining accuracy. It is necessary to research highly precise station system. In this paper, the development of a two-dimensional...

Higher alcohols have a great impact on the aroma and taste of wine, meanwhile the amount of that are affected by nitrogrn nutrients. However, the accumulation mechanisms of the higher alcohols in Saccharomyce cerevisiae under low nitrigen condition remains unelucigated. In the present research, the determinationof...

The vibrations of plates are a topic of undoubted interest in the field of civil engineering and aeronautics. Today, we find many examples where this type of phenomena occur, and there are structural elements that we can study as plates or shells. The analytical solutions for the governing equations...

Monsoon is the seasonal wind blowing through continents Australia and Asia. Monsoon is one of the main element which influences the weather and climate in some Indonesia areas. Sea Surface Temperature is the water temperature close to the ocean’s surface. Sea Surface Temperature is directly influenced...

Renewable Energy Source (RES) is unreliable because it fluctuates by itself. This problem can solve by Battery Energy Storage System (BESS) installation. Installation of BESS in each place cause different effects for the micro grid. This paper proposed a method for optimal location and optimal sizing...

Indoor environmental quality (IEQ) is very important to people's health, and the leakage of natural gas and chemical gas in the application seriously affects the IEQ and threatens human life and property safety. Aiming at the potential safety hazard caused by flammable gas leakage, a real-time monitoring...

The paper considers the deposition of metallic particles on the main oil filter of aircraft gas turbine engines (GTEs) depending on the filter parameters. It was shown that the filter presence includes systematic error in the measurement of the mass fraction of wear particles independent of the measurement...

A natural bentonite from Indonesia was activated with 1 % of fluoride acid. In characterizing the activated and raw clay samples, XRD, BET and infrared spectroscopy were utilized. Bleached oil was analysed to find out peroxide value content, the percentage of colour reduction (%CR), acid value as well...

The positive influence of ultrasonic radiation on the fermenting microflora of the semi-finished dough product and the quality of bakery products is determined. The experiments were performed with the help of experimental ultrasonic radiators with a frequency of 100 ± 6 kHz and 20 ± 2 kHz. The ultrasonic...

The purpose of this paper is to study the effect of advance support on the stability of tunnel surrounding rock using the numerical analysis. For this, three different cases, such as without support, pipe shed grouting support, and advance small pipe grouting support were calculated and analyzed. The...

A flavonoid compound namely kaemferol had been separated from the acetone extract of the silver fern (Pityrogramma calomelanos). It was obtained as yellow needles crystal with m.p. of 271-273 oC. Determination of its structure was conducted by the spectroscopic method and by comparison with reported...

Chemical industry is closely related to people's life and involves all kinds of aspects. With the development of times, the requirements for chemical engineering is becoming more and more high, which requires the greatest reduction of resource consumption and the adverse impact of chemical process on...

Due to the vitality of the SPWM technique in industry of the power conversion devices, this paper suggests a new harmonic distortion minimization technique so far called multi-tone SPWM. This proposed technique aims to inject the modulating waveform with a high frequency component at the low voltage...

TransJakarta is a transportation service in Jakarta that has been operating since January 15th 2004 with the hope of giving faster, comfortable, but also affordable service for the citizens of Jakarta. Researchers used SEM (Structural Equation Modeling) with the SmartPLS software, hence the affection...

This study presents results of an experimental investigation conducted to investigate the axial behavior of natural rope confined concrete. Natural ropes such as coir, coconut and hemp ropes are easily available both in developing and developed counties. In this study, small scale concrete columns were...

The Tahfidz Koran boarding school has a specialization curriculum and learning that the model is applied there that is different from the schools in general. Daarut Tauhid Islamic Boarding School is one of the Islamic boarding schools that implements an intensive program of memorizing the Koran for Approximately...

The Tariff Integration System is a tariff payment system where users of public transportation make payments only once but can use two or more modes of public transportation. For this study, the modes of transportation reviewed are TransJakarta and MRT. The purpose of this study is to find out the preferences...

Tropical climate areas have an advantage in terms of utilizing natural lighting for buildings. On the other hand, deep plan buildings have limitations in natural light penetrations through the sides of the building, while making the natural light enters from the roof risks of blending in with the heat...

The Covid-19 pandemic that occurred worldwide caused a social policy for all citizens to break this Covid-19 chain. However, this policy impacts all aspects of life, including the field of education in Indonesia. The government decided to move the learning process from face-to-face learning to online...

Tote bags made of calico cloth are starting to be known and favored by the community so that many are interested in making them a business field, this makes Zeta Tote Bag businesses have to create competitiveness through the use of technology, namely by creating Android-based applications to make it...

Porous asphalt is a type of pavement characterized by a porous structure that functions to reduce water ponding on the road surface. However, its large voids and uniform aggregate size result in lower stability and binder adhesion than conventional asphalt. This study aims to improve the structural performance...

Indonesia possesses a remarkably diverse biodiversity that holds significant potential for enhancing the national economy. Among the traditional products commonly employed for medicinal purposes is candlenut oil. However, the current extraction process for candlenut oil relies on manual squeezing, following...

The harmonious concept of biophilic design is currently receiving a great deal of attention in the field of architecture, especially in response to the growing design of living environments, which reflect new forms of architecture that are more relevant to today's society. Open questions and controversies...

The cooling tower, standing at a height of 70 meters, features a reinforced concrete hyperbolic cylindrical wall structure. Seismic performance analysis was conducted using Rhino and ABAQUS software, considering multi-directional seismic time-history effects. The dynamic elastic-plastic time-history...

Due to the inherent characteristics of immersed tunnels, any unexpected incident during operational periods may lead to immeasurable losses, necessitating heightened attention to safety risks. This study investigates the structural impacts of flooding risks in operational immersed tunnels through numerical...

Aiming at the problem of low matching degree of the traditional urban fire emergency decision-making plan selection model, this paper combines multi-granularity uncertainty language with prospect theory to construct a new decision-making model. Firstly, the multi-granularity uncertainty language is used...

For engineering experiments such as marine trials where there is no explicit error function or it is difficult to establish a mathematical model for reproducibility, a computational method is proposed to assess their accuracy and reproducibility. First, calculate the combined uncertainty of various physical...

Machine Learning (ML) is a field of science which is proven to be significantly effective and efficient in forecasting diseases and making predictions from analysing the enormous amounts of data produced by various healthcare industries. Several engineers across the world have developed ML algorithms...

Exosomes and nanoscale extracellular vesicles have emerged as powerful mediators of intercellular communication and hold immense therapeutic potential in oral tissue regeneration. Derived from various cell types, particularly dental pulp stem cells (DPSCs) and periodontal ligament stem cells (PDLSCs),...

Medium voltage power line communication has attracted the attention of researchers for its unique ad-vantages. But it has been very little research on the frequency characteristics of medium voltage power line channel for a long time. Proposed based GPS remote synchronization zero-IF quadrature demodulation...

This paper aims at ordering the departing flights on multi-runway, to alleviate the severe flight delays in our country nowadays. We respectively use FCFS scheduling algorithm and multilevel feedback queue scheduling algorithm, to get the result by the simulation calculation above. Finally, the paper...

Semi-rigid solar array is an efficient energy system on the surface of stratospheric airship for utilizing the solar energy which we believe has succeeded in providing some useful results for conceptual design. Their core consists of: To improve the flexible of rigid solar cells, a multilayer composite...

This page proposed an automatic lighting control circuit sent the light brightness analog signal to the AD conversion chip which detected by the photosensitive resistance, and converted the analog signal to a digital signal the AD conversion chip, then send the converted digital signal to the LED driver...

This paper addressed the visual redundancy of typeface in a structured document. Achieving information embeds through modifying the appearance of words by CSS. The idea combines encryption and hiding, has widely application. Meanwhile it has high density and safety in information hiding and is easy to...

By means of ABAQUS, the numerical model of grouting-sleeve reinforcement-connection component under the action of axial tension load was established, and the influence of grouting- material compressive-strength on the stress distribution, the displacement distribution at grouting- material, reinforcement...

Combining with the existing transmission technology which is feasible in engineering and theory, four types of ultra-long-distance transmission mode, in terms of UHV AC, UHV DC (±800 kV and ±1 000 kV) and Half-wavelength AC transmission system (HWACT), have been introduced. The reliability and the economy...

On the basis of the research for AGV20 container automated guided vehicle (AGV), this paper focuses on analyzing and discussing core technical issues and treatment mode for global positioning system at the aspect of design and application, especially dual close-loop vector control drive of positioning...

The amplifying circuit is designed to amplify small signal and realize the low noise amplification. This paper mainly studies and designs the small signal amplification circuit to make the weak signal to be amplified and transmitted without distortion. The research mainly includes the concept of low...

As system integration becomes an increasingly important challenge for satellite electronic systems, there has been a significant demand for system-level optimizing. Cloud computing is suitable for this case. Proposal a satellite integrated electronic system architecture which using the cloud computing...

References are widely used in C++ programming language. A reference is a value that enables a program to indirectly access a particular data item in the computer’s memory or in some other storage device. References are difficult for programmers to understand and to master. The purpose of this paper is...

the corrosion behaviors of AZ61 magnesium alloy with the Ca addition have been studied in this paper. These alloys were prepared in an induction melting furnace with an Al2O3 crucible under a mixed atmosphere of CO2 and SF6. The corrosion tests were completed using immersing in 0.5% and 3.5% NaCl solution...

The eutrophication status evaluation of campus landscape water body had been studied. The results showed that the content of nitrogen and phosphorus were higher than the standard, and the pH was floated in the 7-9, although the transparency had not exceeded the standard, but the content of suspended...

Now, we are unable to make pig feed intake real-time monitoring and prevention of swine diseases factors, this paper designed a pig food intake measurement system based on TinyOS and wireless sensor networks. The system can realize intelligent pig, real-time monitoring through wireless nodes intake of...

Traditional manufacturing techniques used for developing the models for hydrodynamic research are slow and costly. Based on the development of current technology, 3D printing technology could be the fastest way to generate the model for with high accuracy for experimental test. With the help of 3D printing...

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...