Advances in Engineering Research

Etawa Crossbred goat is a small ruminant germplasm whose population must be maintained and increased. This study aimed to identify the revenue and cost as well as to analyze the income added value of Etawa goat. The research was conducted in Kulon Progo as the center of crossbred goat breeding in Yogyakarta....

To prolong the service life of hydraulic structures of irrigation systems and dams there were developed and patented method and device of creating impervious coating of irrigation channels, impervious geotextile coating of low-pressure earthen dams, a device for sealing butt joints of trays providing...

The Imphal River is major river in Manipur, India, that connects Manipur River and Bay of Bengal. The seasonal variations of organic carbon in surface sediments and the major sources along the course of the river were studied. Sediment samples were collected from five sampling sites, namely Lamlong Thong...

The urgency of the investigated problem is caused by the need to improve the quality of welded joints of aluminum thin-walled structures of aerospace engineering. The purpose of the article is to substantiate the application of automated welding technology with the process of cold metal transfer for...

This research was conducted to obtain the procedure for the production of herb powder based on Indonesian local Kaempferia galanga commodities which have proximate as well as metals and microbes contamination level that meet the requirements in the Indonesian National Standard (SNI) 01-3709-1995. Blanching...

The purpose of this study was to obtain an ergonomic aspect analysis on the design of classrom’s tables and chairs for high school and vocational high school. The study was conducted at SMK Veteran 1 Sukoharjo, with research subjects of 30 students aged 16 years to 18 years. The data that is needed in...

This paper presents an improved self-consistent, multi-component and two-dimensional plasma hybrid model for the simulation of DC positive corona discharge under atmospheric environment. The model is based on the plasma hydrodynamics and the chemical models. It includes 12 species and 27 reactions. Besides,...

In statistics, expectation-maximization (EM) algorithm is an iterative method which finds the maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models depending on unobserved latent variables. In image segmentation, EM is widely used to determine the unknown parameters...

A heavy equipment wharf intends to ship11100 tons "upper part of self-elevating offshore platform ", the offshore platform located in the rear of the wharf base terminal yard, adjacent to the pile platform. The finite element software ABAQUS is used to analysis of the "upper part of structure" stress,...

There are many quality problems appearing in residential engineering in recent years. Such residential engineering quality problems are investigated. Through statistical analysis of survey samples, 24 kinds of major quality problems and their corresponding features which often appear in residential engineering...

Investigation on the influence of chemical composition on the precipitation of -ferrite phase during solidification process with simulation method has been done in this study. Meanwhile, Fan-shaped laser beam welding method was used to verify the reliability of simulation results. The research results...

Psoriasis, meaning "itchy condition", is a chronic skin disease that is characterized by scaly, reddened patches. It is a recurring disease with varying severity ranging from slight limited flakes to entire body. Psoriasis Area and Severity Index (PASI) is the most conventional method for measuring the...

In the last two decades of the 21st-century residential real estate development in the municipality of Malang has increased rapidly. The urban fringe has chosen for the development location because of the availability of vacant land, and the situation in this area is not too crowded. The lower land value...

The concept, origin, development and application of supramolecular chemistry are briefly introduced. This paper introduces in detail: the preparation and application of rare ginsenoside, a biological supramolecular ligand.Synthesis, properties and applications of supramolecular complexes of macrotricyclic...

An important dimension of value chain flexibility is supply-side flexibility, which refers to the range and ability to accommodate changes in production output related to internal operating efficiency. Meanwhile, flexibility in supply chain networks can help reduce supply chain risk when dealing with...

The Aceh region, located in the subduction zone between the Indo-Australian and Eurasian Plates, is highly vulnerable to natural disasters, particularly earthquakes and impact loads that can damage building structures. One commonly used building structure system is the unconfined masonry wall, which...

The new large language models (LLMs), it is impressive in their generality, remain inadequate in terms of context-awareness, tool integration, and real-time flexibility that technical education requires. We offer a solution to this problem by introducing C.A.T.E. (Compiler Assistant for Technical Enhancement),...

Electrical energy is a very important requirement for life, almost all life activities require electrical energy. The live line voltage installation of the insulator cover on the strain clamp 20 kV system is done by a hand robotic is a forward effort to prevent disturbance on the overhead medium voltage...

With the swift advancement of Industry 4.0, 3D printing is increasingly being applied across various industries, and its status is continually rising. However, many 3D printing technologies have problems of insufficient printing success rate and unstable printing quality. Enhancing the degree of automation...

The study investigates the load-bearing capacity and stiffness of ancient wooden architectural components under various vertical loads, with a focus on dougong and mortise-tenon joints, which are vital for the stability of ancient wooden structures. Using ANSYS software, finite element models were developed...

In a large-scale pulp and paper industry, good quality chips play a critical role in determining the pulp making process. Several factors affect the resulting quality of chips in the wood chipping process; among of them are the chipper knife sharpness and wear. This research examines the difference between...

This paper proposes development of a Pulse Width Modulation (PWM) scheme that overcomes the weakness of conventional Carrier-Based PWM (CBPWM) performance on Neural Point Clamp Inverter (NPC). This scheme uses the conventional CBPWM technique to developed Advanced CBPWM. This technique uses triangular...

The concrete construction work process usually has many factors that influence the quality of the concrete, starting from various methods of preparing materials to caring for the concrete. This occurs because of the differences in treatment given to samples in the laboratory and workpieces made in the...

Human body structures supported by the skeletal system are susceptible to osteoporotic vertebral compression fractures due to aging. The most common fracture among the geriatric population is vertebral fracture (25%), compared to hip fracture (24%). These symptoms, which largely stem from osteoporosis...

This research focuses on the effect of service time on passenger satisfaction at Yogyakarta International Airport during the implementation of PM 178 of 2015 and PM 41 of 2023. The research highlights the elimination of service time standards in PM 41 of 2023. By using survey research methods in the...

Gasification is an attractive valorization option because it can convert plastic waste into valuable products such as syngas. If the syngas meets certain specifications, it can be used to produce fuel, chemicals, and electricity. Additionally, plastic waste is rich in carbon and hydrogen, both essential...

The dynamical phenomena of complex networks are not easy to model and to characterize by current methods of mathematics. Newman, Barabïasi and Watts pointed out the direction of researching complex networks by graph theory, which was successfully applied in current investigation of complex networks,...

This text introduced a kind of Geometry Test for machine tool, mainly make use of the stick and laser to measure the tool system, pass plait distance to complete machine tool automatically part several accuracy measure, and the automatic record is bad value. Pass the engineering application, can attain...

This paper research the Topology optimization based on level set method. Existing level set topology optimization method based on the reaction diffusion equation does not satisfy the volume constraints and convergence of objective function when solve some model optimization. According to this phenomenon,...

This paper is devoted to describe the variation trend of temperature and humidity in the glasshouse in summer during the working of the four main cooling systems, i.e. natural ventilation system, mechanical ventilation system, wet curtain cooling system.Then, set up the quantitative relationship between...

This study investigates long-term significant wave heights trends in the South China Sea. The Hs-SLP relationship in each domain is represented by a multivariate regression model with lagged dependent variable, which is calibrated and validated using the ERA-Interim reanalysis of Hs and SLP for the period...

Objective: To investigate life quality of type II diabetes and its influencing factors of patients in Inner Mongolia area. Method: To compare life quality of patients with diabetes from community, together 161 cases taken by Affiliated Hospital of Inner Mongolia University for Nationalities' endocrine...

At present, our time is an era of information and this era is a significant feature of information technology in a wide range of industries. The development and improvement of information technology has made great contributions to Chinese economic take-off, but it also brought new development opportunities...

Currently, pineapple bran vinegar is divided into two types - blended and fermented. Fermented pineapple bran vinegar is formed by using pineapple bran as its main raw material which is fermented by both alcohol and acetic acid. This vinegar can be used as both flavoring and beverage. This paper introduced...

This paper applies the Latent Class (LC) approach to investigate households’ preferences on air quality and study environmental externalities in China’s coal-based power sector. We conduct a choice experiment where people are asked to choose among three hypothetical air quality improvement options and...

In order to optimize the dynamic performance of a 2-DoF planar parallel mechanism used in hybrid machines, comprehensive acceleration ellipsoid (CAE) method is introduced. Considering the inertia, velocity, gravity and external force factors, CAE method can evaluate the dynamic performance more exactly....

Traditional way of artificial survey statistics for urban population distribution is too time-consuming to adapt to the rapidly changing city traffic flow. In this paper, we propose a method to find out the workplace and residence, according to mobile phone location data and historical trajectory mining....

In view of the roadway threatened by confined water are prone to water-inrushing during operation service, industrial test of supporting parameter optimization had been carried out in deep mine. This paper analyzes time effect of water inrush and prevention measures, and put forward the optimization...

By introducing the theory of virtual compound joint and its characteristic parameters analysis method, the moving capability of the output terminal of the kinematic chain can be obtained by calculating and analyzing the instantaneous or global equivalent rotation angle domain and instantaneous or global...

Cervical cancer is one of the most common malignant tumors of the gynecological department. In recent years, there has been a tendency to report the incidence of cervical cancer at home and abroad. The incidence of cervical cancer under 35 years of age is increasing, which seriously endangers women's...

Based on the theory of stress control for rock burst prevention, rigid-flexible integrated support with energy absorbing was found. In this paper, we tested between flexible yield support and rigid-flexible integrated support with energy absorbing. The results showed that the frequency of rock burst...

The inverted pendulum is a classical control problem, which is an absolutely unstable system with the characteristics of higher-order, unstable, multivariable, nonlinear and strong coupling. There can be varieties of methods to be applied to control inverted pendulum system, such as PID control, optimal...

We propose to assess the use of information systems through the Lean philosophy in various maritime and port companies. Interviews were conducted with shipping agents, consignees and port authorities of the major maritime port of Nantes-St-Nazaire in France. We demonstrated that there are sources of...

The octadecylamine-hectorite composite (ODA-hectotie) has been designed and synthesized. The composite is used for removal of methylene blue (MB) from aqueous solution. Research concerning the effects of pH, composite dose, initial dye concentration and temperature are presented and discussed. Experiment...

With the rise of distributed generation, such as wind power and photovoltaic (PV), it is necessary to consider the effect of distributed generation's output randomness. Using the method of Latin hypercube sampling (LHS) can effectively fit output scenario. Considering the sampling number of conventional...

In this paper, the connotation and characteristics of basic chemistry concept are described, value theory structure, content, shape and other related content, and then on the basis of the theoretical system, construction of basic chemistry concept ideas, are combined to promote the concept of "construction"...

The architectural thoughts and practices of Li Xiaodong present his commensuration design philosophy of the Chinese and western as well as the ancient and modern architectures. His unique design methods including "reserving common points and removing difference, stressing on the field and interface,...

Motion parameters of TBM cutting head have a serious impact on the load fluctuation of cutting head and the specific energy consumption for cutting; meanwhile, the service efficiency of TBM is widely affected by the moving load nature of cutting head, and its service life is also closely related to the...

The effects of deceleration parachute of ejection seat on ejection trajectory were analyzed under low velocity condition. Through trial method and simulation, delay time of parachute opening was optimized in terms of maximum mobile load and maximum velocity. The results showed that the curve-optimized...

The paper deals with recreational resources and potential of the Khulamo-Bezengi Valley in the Kabardino-Balkar Republic. The main attention is paid to recreational resources and development of the area. We distinguished the most promising types of recreation such as traditional-mountaineering, mountain...

This paper constructs a short-term traffic flow forecasting model based on SVR. First, the modified KNN algorithm is applied to achieve phase space reconstruction and get the input data of SVR. Then, the short-term traffic flow forecasting model is established. Finally, this model was tested and evaluation...

This paper presents the determination of bergenin content of Pulmonaria officinalis by high performance capillary electrophoresis (HPCE) method. The borax solution as buffer solution was chosen, and its concentration was 20 mmol/L at a constant voltage of 20kV and injecting time of 10s. Linearity was...

The increasing of gasoline demandcause, the need for octane number booster additives such as methyl tertiary-butyl ether, ethyl tertiary-butyl ether, triacetin and other additives is increasing. Methyl tertiary-butyl ether is one of the non-metallic substances that can be used as an octane number booster...

Microwave intermittent drying kinetics of banana slices were investigated under different power levels (250, 400, 550 and 700W), sample thickness (3, 6, 9 and 12mm), heating time (11, 14, 17 and 20s) and intermittent time (50, 60, 70 and 80s) during each cycle. Results indicated that all the four factors...

In order to investigate the wear characteristics of flat slippers of shearer, this study firstly built up the static model of the whole shearer machine. Basing on the static simulation research for the flat slipper by ANSYS, the maximum values of stress and strain of the flat slipper was obtained. Then...

In many occasions of the practical engineering, the equipment of reciprocating rectilinear movement at high frequency is used commonly, which usually is completed by the slider-crank mechanism. But there is big friction force between the guide rail and the block in this mechanism, thus the big friction...

To determine the optimum technological conditions of germination of buckwheat seeds, we studied on the influencing factors of germination rate of buckwheat seeds, which include soaking time, soaking temperature, germination temperature and germination humidity of buckwheat seeds. The results showed that...

With gradual development of power system, harmonic measurement of power system has attracted increasing attention. To realize harmonic measurement, we need to measure accurately using professional equipment. The research and development of virtual instrument is of great help for harmonic measurement...

The steady accuracy of output waveforms is a core index for judging the performance of DC-DC converter and it is mainly determined by the control scheme of DC-DC converter. This paper studied a PWM current hysteresis control scheme to improve the performance of the high step-up current-fed DC-DC converter...

The article analyzes the theoretical and practical background of the conception “environmental security”, as well as systematizes various approaches to its definition. The authors determine the structural elements and the functional purpose of this phenomenon. The empirical study of policy implementation...

Kedungjati - completion road is a railway line that has not been used, and it used to connect between Semarang and Secang, Magelang Regency. In accordance, with the 2011 National Railway Master Plan (RIPNAS), the Directorate General of Railways of the Ministry of Transportation stated that the need for...

The ability of chickens to retain calcium and phosphorus at high temperatures is low, so a lot of calcium and phosphorus is wasted through feces. This study aimed to calculate the calcium and phosphorus requirements of female Arab chicken until the first age of laying eggs in a semi-scavenging system...

Eurycoma longifolia which is a renowned folk medicinal herb in South East Asia is rich in saponins. This study investigated the different extraction and fractionation techniques of saponins from the roots of the plant. Organic solvents such as acetone and ethyl acetate were used to precipitate and partition...

Indonesia has a lot of abundant material resources. One of them is the availability of solid wood that can be used for bridge construction. The wood used as a bridge structural element has a 15-20 meters span with class III road loading capacity. However, wood has limited dimensions. Therefore, it is...

Recent developments in artificial intelligence have enabled the world to detect objects, learn their surroundings, and forecast the next sequences. The cost of surveillance systems is reduced as a result of the development of embedded technology. The surroundings are being captured by the surveillance...

The Bungus Bay Ferry Port Service Unit is a ferry port in the West Sumatra Class II BPTD working area located in West Sumatra Province. This research aims to find out how waste from the results of ship operational activities is disposed of in the port area, and the activities of service users in the...

Processing big data into human mobility analysis requires more in-depth stages and calculations with each consideration or assumption at the beginning of the step. Data from the Ministry of Transportation Research and Research Section with City Data for March 2022 on 15–16, Sunday and Monday as a representative...

The author’s analysis will consider the influence of solar panel implementation on several challenges related to power supply failures from the national power utility (PLN) at Sultan Iskandar Muda International Airport. The purpose of implementing solar panels is to address the power supply failures...

Rapid digitalization and networking have increased communication demands, necessitating optimized spectrum resource utilization. Evolving frequency reuse strategies like Fractional Frequency Reuse (FFR), Intelligent Frequency Reuse (IFR), and Dynamic Spectrum Reuse (DSR), particularly with the advent...

This study examines a Content Delivery Network (CDN) model integrated with Application Programming Interfaces (APIs) structured in alignment with the hierarchical architecture of Indonesia’s government. In this simulation, the Central Government operates as the origin server, disseminating a 1 MB content...

A dramatic increase in the number of devices that are connected to the wireless networks has seen many challenging issues. One of them is the security problem. Enhancement in physical layer security has shown promising results to improve these security issues in the existing wireless networks. This paper...

With the widespread application of wind power grid connection technology, the issue of voltage stability in the power system is becoming increasingly prominent. The fluctuation output and wind speed changes of wind turbines pose significant challenges to the grid voltage, and how to improve voltage stability...

Modern trends are leading to an increase in the number of alternative and renewable DC power sources, which are switched on in parallel operation with the main power source, which is a synchronous generator (SG) or a powerful AC network, through a semiconductor autonomous voltage inverter. In order to...

Industry is one of the pillars driving strategic economic growth, but on the other hand it can also have a negative impact on environmental quality. The company’s concern for the environment is also called environmental performance. The measure of a company’s environmental performance can be seen from...

The heavy logistics, discrete operation floor, volume work in process, high-intensity operation and informal operational standards are taken as the production problems of digital caliper assembly in the G company. According to the problems mentioned above, the improvement scheme of caliper assembly line...

Aerodynamic characteristics of small-rotor were studied based on the finite volume method. In an attempt to study its performance, hovering flow field of the single-rotor was established, meanwhile, the boundary conditions were set up. In addition, flow field was analyzed numerically by using computational...

This paper presents a feature based vision destination recognition approach. A simplified static calibration of camera is implemented and then based on the homography matrix calculated by coplanar matched Speeded-Up Robust Features (SURF) points the destination which is not even a direct feature point...

In this paper, the transfer matrix method is firstly used to analyze the free vibration of a simply-supported rhombus plate. Firstly, using coordinate transformation formula, the solution domain for a rhombus plate is converted into a rectangular one, and the governing equations and the corresponding...

We nowadays attach more attentions to the concept of sustainable development. Making our life develop faster, suitable and more economical becomes an urgent problem to solve. In these years, some of the cities' continued urban sprawl and the loss of farmland which is surrounding urban centers causes...

In the case of a thin surface precision mechanical device, it is often accompanied by mechanical vibration, mechanical vibration will reduce the precision of the device. In order to eliminate the influence of the vibration, the surface eddy current damper is introduced, which can quickly generate the...

Abstract. To observe hypoglycemic and hypolipidemic effects of Melastoma dodecandrum ethanol-extract on type 2 diabetic rats. Except twelve SPF SD rats were as the control group, the rest eighty type 2 diabetic rats were induced by feeding with high-fat and high-sugar diet and intraperitoneal injection...

The establishment of stable and reliable island microgrid with renewable energy resources is an important measure to guarantee the island economic development. The scheme and strategy is used to achieve information communication and interactive control. The energy storage unit and diesel generator can...

In order to study the effect of water on the rock compressive strength, mechanical data for different water content of siltstone uniaxial loading process are analyzed, the results show that: 1) siltstone compressive strength decreases as the water content is increased, the damage of water to siltstone...

The hybrid active power filter is very efficient in filtering harmonics and power factor correction. But its efficiency depends on many factors; including control strategy plays a very important role. Therefore, this paper aims to analyze mathematical model of the hybrid active power filter. On that...

The super capacitor has the advantages of high power density, short charging time, long service life and so on. It has a great development potential in the field of energy. Continued growth in market share will further stimulate the super capacitor of R & D, in order to meet the needs of commercial prepared...

In this paper we analyzed the product design process model based on function-principle-structure. Regarding the existing products as an object for module partition, we researched the related principles and quantitative method based on the function, principle, structure between the two parts. In the research...

Current Statistical (CS) model is a good adaptive filtering model for maneuvering target tracking. While, the performance of CS model depends on the maneuvering frequency, and becomes poor when tracking weak maneuvering targets. Firstly, the innovation of the filtering is used to reduce the dependence...

Wheat Straw Cellulose (WSC) modified by diethylenetriamine was investigated as an adsorbent for Cd(II) removal from aqueous solution. The preparing parameters on preparation of Polyamine Wheat Straw Cellulose (PWSC) were optimized. The effects of pH, adsorbent dose, contact time and initial concentration...

This paper introduces composition of a system platform to collect data from a wireless monitoring bridge, develops software to receive data from monitoring bridge fixed with vibration sensors and temperature sensors. We use INV3020 made by Coinv(China Orient Institute of Noise & Vibration) as a lower-position...

An arch will block the flow of grain , destroy the continuity and reliability of the discharge operations, and interrupt the continuity of discharging . Aim at the arch could produce harmful phenomenon and combining with the knot into the mechanism of the arch ,when we load and unload food.We propose...

This paper studied the effect of triethanolamine(TEA), glycerin(PG) and lignosulphonate(CLS), used as grinding aids respectively, on cement particle size distribution and mortar strength. Grey connection analysis was made between cement particle size distribution and compressive strength. Results showed...

Natural fiber thermal insulation is rarely used in the Slovak republic. This low usage might be caused by various factors such as mistrust of new materials from the point of view of thermal insulation installation or of their behavior in case of fire. The paper focuses on the problem of their reaction...

Titanates have great attention mainly due to its versatile properties that make their various applications in science and technology such as in electronic transducers, thin film capacitors, computer memory cells, etc. The thermal study of ferroelectric titanates RTiO3 (R = Pb, La, Ba) have been investigated...

High voltage 4H-SiC Ti schottky junction barrier schottky (JBS) diode with breakdown voltage of 1200 V and forward current of 40 A has been fabricated. A low reverse leakage current below 1.02 × 10-4 A or 4.08 × 10-4 A/cm2 at the 25 and the reverse bias voltage of 1200 V has been obtained. The forward...

The air conditioner installation in general, the air compressor is installed at the external of the building that has well for heat rejected and pretty location. The air compressor must be used the supporting leg for support the its weight. Now a day, the production of supporting leg has the measure...

In order to realize ahead forecastofgeological structure of coal roadway and reduce coal mine accidents, an advanced detector based on Dynamic and Directional Electric Field Excitation Method was designed by my research group. As an important part of the detector, the electrode has a great influence...

The paper introduces the technical essentials of high level detection of carbon-sulfur in aero-engine materials by using high frequency induction combustion-infrared absorption method. Meanwhile, in order to adapt to the development of aero-engine, the paper proposes and elaborates ten major relations...

With the deterioration of environmental and energy problems, the demand for large amounts of new energy interconnection has become increasingly strong. However, the fluctuation of new energy will impact the stability of power grid. This paper describes the development and application status of energy...

Traffic forecast is the basis of traffic planning. And it is an important basis for determining the road traffic network structure layout, capacity and provincial corridor layout. The accuracy level of the model and algorithm directly restricts the reasonable degree and scientific level of traffic network...

This paper studies the implementation of weak signal detection chaotic oscillators. Also, the detection model of the system is theoretically studied and analyzed. The main mechanism of the chaotic oscillator detecting the same frequency signal and the non-frequency signal located in the difference frequency...