Advances in Engineering Research

This study aims to analyze antenna characteristics at a frequency of 2.2 GHz, including return loss, VSWR, gain, bandwidth, surface current, and radiation pattern values. Antenna characteristics were designed using simulations made with FR-4 substrates with dielectric constant ...

An oil Change is the act of maintenance on the Excavator Vaia Car (Special Equipment) at the Ngrombo Railway Maintenance Center. The research aimed to investigate the feasibility of engine oil for the Excavator Vaia Car. The method was taking the engine sample oil from 0 months to 6 months with 1 month...

E-commerce is blooming in Malaysia. Benefited from the blooming of e-commerce, courier industry gained rapid growth in Malaysia as well. One of the challenges in delivery services is failed delivery attempt. Smart mailbox is a potential solution for this challenge. With the rising of Internet of Things...

Mangroves are among the most productive and biologically important ecosystems in the world, providing many services that bridge processes in the ocean and land. One of the species of mangrove forest in the Banggai Kepulauan is Rhizophora apiculata Blume. Regional development and climate change pose a...

After several years of operation, there is a discrepancy between the measured data from the piezometric pipes and the initial design infiltration line of the dam. A mathematical model can be established to infer the permeability characteristics of the rock and soil materials in the earth dam based on...

The heights and height differences of pier structures in different terrains vary, and their damage characteristics under seismic conditions also differ. In order to further explore the influence of pier height on the seismic resistance of rigid frame bridges, this study takes a group of equally high...

Dye Sensitized Solar Cell (DSSC) is a solar device that works based on the principle of electrochemistry, where the sensitive dye is absorbed by the TiO2 photoelectrode layer. The disadvantage of this solar DSSC is that it still has low efficiency compared to silicon solar cells. This study investigates...

Natural disaster is one of the important factors threatening the safety of human life and property, natural disaster investigation and assessment can effectively help human beings to understand the mechanism of natural disasters, the response process and the level of ability to defend against natural...

China is presently undergoing a transition in urban development, aiming to facilitate the high-quality advancement of urban buildings during the renewal phase. In this regard, this paper focuses on the existing rural residences in the suburban areas of Hohhot, Inner Mongolia, conducting field surveys...

This study aimed to investigate the effects of various exogenous additives on crop salt tolerance, utilizing sorghum and wheat as model plants. We measured soluble protein content, malondialdehyde (MDA) content, and peroxidase (POD) activity to elucidate the response characteristics of these crops to...

The Jongor Tegal Coastal Fisheries Port (PPP) plays a vital role in supporting fisheries activities in Central Java Province. With an area of approximately 17 hectares, this port can accommodate hundreds of fishing vessels and provides adequate facilities for fish loading and unloading activities. This...

In view of the ambiguity solution is the technical difficulty in the relative position of the carrier phase differ-ential. This paper introduces the principle of the carrier phase differential relative positioning and the process of integer ambiguity solution in detail. The ambiguity is solved by LAMBDA...

In high-speed train, the harmonics generated in invertor due to control and nonlinear of switch may lead to the torque ripple in different frequency and amplitude. The driving device which consists of rotor, coupling, gear, shift and wheels of bogie has some resonance frequencies. When there are frequencies...

Recently, in the field of high voltage equipment, polymer nanocomposites have received increasing attentions, due to their excellent electrical properties, such as high breakdown strength and high resistance to partial discharges, and their good mechanical and thermal properties, such as high mechanical...

Five batches of raw silk were tested in the electronic testing for raw silk on the raw silk electronic detector, meanwhile, the current test of raw silk was done in accordance with GB/T 1797-2008 standard for raw silk, and the correlation between indicators of the electronic testing and the current test...

In order to timely and accurate understanding of propellant in the process of storage, security, need for stabilizer determination of propellant, the microwave-assisted extraction (UAE) and solvent-dissolve-water-precipitation extraction (SDWP) were used in this paper for chromatographic analysis of...

The grouting materials are widely used in construction materials for a long time and play an important role in the construction engineering. The flexural strength and compressive strength are the basic properties of cement based grouting materials. Therefore, the strength at a certain age of the cement-based...

Because the breaking characteristics of contacts decide the reliability of miniature breaker, it is necessary to study it. In this paper, the mathematic theory is firstly elaborate. And the 3D model of contacts is built after that. Based on virtual prototyping technology, the breaking characteristic...

Due to long-term development of water injection and vague awareness of heterogeneity in Tou Tai oilfield, remaining oil form and gather, which form potential area. In order to resolve this problem, fine division and correlation of strata is needed. In guidance of theory in high-resolution sequence, considering...

Caverns with high pressurized water ahead of tunnel face tend to cause water inrush. So, the determination of the critical safe thickness of the water-resisting rock wall to prevent water inrush geohazard is of great significance during karst tunnel construction. Firstly, to obtain the critical safety...

In this paper, we study how to allocate the capacity of links in order to both restrain the propagation of cascading failures and to improve the robustness of the whole power grid system. Based on related works, we propose a graph-aided model which maps the real power grid into a graph. It can be viewed...

The brick crusher hammers were used in factory, which wear-resisting was poorer. According this phenomenon, the single structure was designed in symmetrical fission structure. Firstly, high chromium cast and low alloy steel were casted into half of the bimetal hammer head, then two new type bimetal hammer...

A molecularly imprinted polymer (MIP) was synthesized by bulk polymerization method using tribenuron-methyl (TBM) as the template molecule, methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EDMA) as the cross-linker and 2,2 -azobisisobutyronitrile (AIBN) as the initiator....

In this paper, based on the chemo-thermo-poroelasticity model of saturated porous medium undergoing the local thermal non-equilibrium (LTNE) conditions, the pore pressure and chemo-thermal stresses around a cylindrical hole in an infinite fluid saturated porous medium subjected to sudden variations for...

Image segmentation is the first step of GEOgraphical Based Image Analysis (GEOBIA). Because of no obvious mathematical relationship between the parameters of segmentation algorithm and the optimal segments, users select parameters by “trial and error” method, which is time-consuming and subjective. This...

Er and Sr were added to 5052 Al alloy to investigate their possible effects on the microstructure and mechanical properties of the alloy. The results show that while Sr addition has a moderate grain refinement effect and has no positive effect on alloy plasticity, Er addition refines both the grain size...

Aiming at defects of large computational complexity and poor real-time performance of the traditional steering response power-phase transform (SRP-PHAT) sound source localization algorithm, a SRP-PHAT sound source localization algorithm based on chaos artificial bee colony algorithm was proposed. In...

More and more web services are composited together to accomplish more complicated tasks. Replaceable web services with same function need to be evaluated effectively, so as to select the best one. This paper selects better service by response time, which is easy to collect on client side machine. According...

The contradiction between the development and utilization of the sea area and the ecological protection, as well as the double contradiction formed by the conflicts between the various departments, has become a difficult problem in the planning and management of the sea area. In this paper, ESV is calculated...

Javanese people believe that between "containers" with "content" required the balance, alignment, and even harmony that created peace of mind, prosperity in welfare, and prosperity in life. The harmony between the container and the content is symbolized by the existence of the unity concept of the microcosm...

As the most mature kind of solar heat utilization technology, solar hot water system has been widely used and popularized. In this paper, the evacuated tube collector and the flat-plate collector are used as the research object. The two kinds of collector are most used, while the proportion of use at...

In order to improve the low-carbon and economic benefits of electric vehicles (EV), this paper proposes a cooperative dispatch model of electric vehicles and wind power. The objectives of the model include the lowest carbon emissions, the lowest cost of thermal power and the lowest equivalent load variance....

The sensitivity and response of a car-follower are marked by the follow-up response in the form of speed conversion that will generate either acceleration or deceleration. The study equipped a hidden camera which was operated through the iOnRoad Pro application to observe the speed and acceleration of...

The airborne and spaceborne SAR system are not universal access to a large area due to its higher cost and harsh demand conditions. This paper presents a vehicle millimeter wave SAR system. According to the features and application needs of the platform, this system uses range migration algorithm (RMA)....

During the development progress of modern society, information construction has played a quite important role. In the modern agricultural development, the agriculture is the major information, which can solve the problems during the development of agriculture. In this paper, based on the "Internet+"...

In order to reducing the energy consumption of the train running between the stations, ensuring punctuality and the comfort of the passengers, this paper studies the train energy-efficient operation strategy. After taking account of the slope and the speed limit of the line, the model of multi-objective...

This study is about biogas purification process by reducing the CO2 content in order to increase the heating value of biogas by using Ca(OH)2 and NaOH solution as the absorbent in a bubble column. The purpose of this study is to determine the effect of the sparger hole diameter and the height of Ca(OH)2...

The method of intensive Vanname shrimp cultivation in Pasuruan Regency is carried out using the Budidaya Udang Skala Mini Empang Plastik (BUSMETIK) system. BUSMETIK system for Vannamei shrimp cultivation is a very productive economic activity, but the quality of the cultivation environment determines...

The problem of this research is to generate electrical energy in the power plant which is located far from the load center, so it requires a transmission line in order to be distributed to the public. The purpose of this research is to find out the ratio on the primary (20,000Volt) and secondary (400Volt)...

Maximum Power Point Tracking (MPPT) is a technology used in PV solar inverters to optimize output power under ideal sunlight conditions. It can reach the value of the Maximum Power Point (MPP) of the PV system. In addition, this MPPT is used to adjust the power needed by the load on the grid. The presence...

This study aims to evaluate the ability of nickel-plated copper catalytic converters to the fuel consumption of a four-stroke engine. This experimental research uses Yamaha Vixion Lightning as the object of research. Research instruments used include chassis dynamometer, and fuel flow meter. Fuel consumption...

Since the operation of the Middle Route of the South-to-North Water Diversion Project, numerous changes have occurred in the operational conditions of the Danjiangkou Reservoir, among which the ecological assessment requirements for the lower reaches of the Han River have had the most significant impact...

With the global push toward carbon neutrality, educational buildings—due to their large energy consumption and social significance—are increasingly regarded as ideal platforms for implementing photovoltaic (PV) power generation systems. This paper aims to assess the current progress and practical applications...

Fused Deposition Modeling (FDM) is a 3D printing technique used to print thermoplastic materials layer by layer. It involves generating support structures under the suspended part. The support structure can prevent the suspended part from collapsing due to gravity. The support structure can be artificially...

The diaphragm’s continuous integrity is vital to the lateral resistance capacity of buildings. However, there is a paucity of research concerning the impact of diaphragm stiffness in concrete modular structures, impeding their broader adoption in high-rise construction. This study employs ETABS to investigate...

In this paper, a constitutive model of particulate-reinforced composites (PRCs) has been developed, which can be used to describe the evolution of interfacial debonding damage between particles and matrix. The influences of particle size and interphase on the equivalent elastic modulus of PRCs are analyzed...

This paper presents a composite 6UPS-6SPS parallel mechanism (PM) based on the Stewart platform for the multidimensional loading test toward the thrust bearing (TB). Analysis such as on the degree of freedom (DoF), kinematic, statics and Jacobian matrix is carried out. Meanwhile, a composite continuous...

Intelligent transportation system (ITS) is an advanced RFID technology, cloud computing, mobile communication, automatic control, computer network technology and other organic applying to the whole traffic management system and set up a real-time, accurate, efficient transportation integrated management...

The effects of melatonine (MT) on the growth of Malachium aquaticum seedlings under salt stress were investigated through a pot experiment. The results showed that MT increased the biomass of M. aquaticum seedlings. With the increase of MT concentrations, the root, stem, leaf and shoot biomasses of M....

A method about the fractal characterization of nonstationary time series, which is based on measure by dividing the sequence into many segments and not sensitive to embedding dimension, is proposed in this letter. There are several differences in our method compare with above methods. To analyze several...

In the passive location system, the traditional maximum likelihood estimation (MLE) location method can’t eliminate larger error or wrong parameter automatically, and does not apply to multi-target situation. A novel location method named as position information field for target (PIFT) location method...

Six feature parameters P1-P6 based on the first statistical moments of the received signals were proposed for automatically classify the modulation of digital and analog communication signal, which were calculated by signal processing methods. The calculation process is simpler than witch traditional...

In this paper, synchronization of a fractional-order complex system is studied. Based on the stability theory of fractional-order systems, the scheme of synchronization for the fractional-order complex system is proposed. the synchronization for the system is realized by designing appropriate controllers....

The liner of a high speed combustion chamber is subjected to high thermo-mechanical loads. Active cooling of the high speed combustor liner by using hydro carbon fuel is seen as a viable option due to its weight efficiency. But choice of the channel configuration has to be optimum. Two channels shape...

Opposed-Piston Two-Stroke (OP2S) diesel engines have been successfully used in many applications because of its high power efficiency. Uniform scavenging is used on OP2S diesel engines. Different from conventional diesel engine exchanging systems, intake ports and exhaust ports are located at each sides...

Based on the turbidity, lower temperature and micro-pollution of cellar water in villages and towns in northwest China, removal efficiency of turbidity, CODMn, NH3-N, UV254, Cr( )was analyzed in this integrate technology by simulating northwest cellar rainwater for raw water. Results showed that the...

In order to improve the performance of wireless sensor networks and adapt the development of network technology, proposed a software defined wireless sensor network model which had hierarchy architecture and based on OpenFlow protocol under the software defined network architecture. Added the information...

Mobile devices have been widely used to assist the existing public transportation system. A new solution to the vehicle information collection is introduced. The hardware design of a vehicle information communication platform is mainly introduces, including platform power distribution design, the battery...

Mechanical characteristics of concrete bottom slab in elevated pile cap steel boxed cofferdam in a bridge is studied. Taking Yuanshui bridge as an engineering example, the loading process of a precast reinforced concrete bottom slab, a part of a steel suspension box cofferdam using dry sealing and embosoming...

Through the calculation and analysis on the stress state of deep corbel under local compression, reinforce deep corbel by external prestressing form. According to the calculation results, find the difference between the stress distribution constrained by prestress and that of normal working state, analysis...

The mechanical property of concrete will be effected when the SAP added in concrete. This paper study on the law of SAP content and amount of additional water which influence mechanical property of concrete. The results show that the effect of SAP on the early compressive strength of concrete is greater...

Light wood-frame house is still developing in China and systematic research on light wood-frame house has yet to be carried out. In this paper, the analysis model of wood-frame shear walls is set by using ABAQUS. In terms of finite element program's computing results, the effect of opening size and location...

CPS is an integrated system of physical process and calculation process. Through the CPS system, human beings are related by the digital world and the physical world. The CPS sensing layer is mainly composed of wireless sensor networks. At the beginning of the data collection task, the sensor nodes are...

The Jurassic coal of NW China has huge recoverable reserves but large spontaneous combustion tendency. Studying on spontaneous combustion mechanism of Jurassic coal is behind of the East and north of the Carboniferous Permian. Therefore, understanding the status of fire prevention of Jurassic seam of...

The mechanical reliability of a pneumatic solenoid valve is studied with the consideration of the failure mode of airflow disorder. The key mechanical components that have important effects on the improper airflow phenomenon are identified as the conical compression spring and rubber O-ring seal. The...

The paper puts forward a new model of electric-loading test rig for testing remanufacture automatic transmission to meet the demands for testing different types of remanufactured automatic transmissions. The sub-systems, including electric & electronic control systems and the mechanical components, were...

In order to achieve an accurate expression and effective sharing about the hazards monitoring and managing knowledge between the upstream and downstream of the cold chain, the paper establish a HACCP ontology model of the cold chain on the basis of analyzing and summarizing general business processes...

Illegal unreported unregulated fishing undermines efforts to fisheries resource in Nort Sea East Java. As we now, fishing resource in ocean north east java has long indicated of overfishing or can be interpreted the area in poor condition. The Republic of Indonesia Ministry of Maritime Affairs and Fisheries...

From the theory of coupled charge blasting, the coupling charge blasting test and the field application of coupled charge blasting, the total energy of coupled charge explosive burst stress wave is the strongest, and the explosive energy is more used to crush the near borehole medium .

In order to analyze microscopic operating law of intersection mixed traffic flow, a coupled cellular model of the vehicle VDR model and the one-way pedestrian Blue model was presented. Based on the definition of pedestrian ??'vehicle interference area, vehicle ??'pedestrian interference area and the...

Rice production could be increased by System of Rice Intensifications, that is water-saving, fertilizer-saving, and production cost-saving. Using quality varieties could increase the production of rice. This research analyzed the physiological growth and yield on varieties of rice plants, with intermittent...

Currently, large machine building companies produce hydraulic excavators serially with a wide range of operating parameters (bucket capacity, digging radius, digging depth and height). Hydraulic excavators have found wide application in quarries all over the world (USA, France, England, Japan, Australia,...

The ultra-fast cooling (UFC) system can accomplish high efficiency and uniform cooling. To accomplish the high control precision of temperature by UFC, the differentiated mesh model was developed in the finite differences model. Based on the one-dimensional unsteady-state heat transfer model, the model...

In this research the charge and discharge tests have been adopted as battery test methods. It has been considered that combining these methods with a fuzzy logic reference system (FIS) can be accurate and efficient in analyzing complex electrochemical processes, such as testing state of charge (SOC)...

Diatomaceous earth itself has a large specific surface area, porous structured, large aperture and uniform, modest, stable skeleton structure of hole wall, easy to modify, high adsorption capacity, good thermal stability, mechanical stability and water, etc. Make it will benefit the adsorption of heavy...

Industrial temperature flow and other sensor signals can be transmitted to the computer in the main control room by the RS485 bus, Modbus RTU communication protocol . Sometimes the data must be transmitted wirelessly ,due to the difficulties of construction site wiring. In this paper, 433MHz wireless...

Hydraulic hysteresis is a common phenomenon in unsaturated soils. The soil-water retention curve from the drying process is different from the one from the wetting process due to the effect of hydraulic hysteresis. The soil strength is strongly affected by the soil-water characteristics. Hence, hydraulic...

This paper investigates pedestrians' behaviours in the turning regions in the Xizhimen subway station passageway in Beijing. Through data-processing and data analysis, it can be concluded that the pedestrians tend to turn approach at the turning arc and the speed during the turn decreases initially and...

The problem of the ecology of the educational process currently stands as the problem of such an organization and such training of specialists that would 1) correspond to the substantive features and processes of human development as a person, partner and professional; 2) corresponded to the requirements...

Rubber is a small-scale plantation cultivated by smallholders. Jambi Province is one example that crucially depends on its agricultural sector, like rubber. Rubber does have the potential to be one key to economic and social development in the rural area, improving the socio-economic situation of millions...

Stemming is a process to determine basic word with some rules. In Bahasa Indonesia, the way is to eliminate prefixes, infixes, suffixes, or combination of prefixes and suffixes in derivative words. Several stemming algorithms for Bahasa Indonesia have been developed. But their effectiveness has not been...

Mango is one of the most economically essential fruits facing storage and transportation issues during long-distance markets due to its decomposable characteristics. Proofs suggest that the application of edible coatings reduces the loss of perishable commodities. The present study employed zinc oxide...

The current study deals with the perishable food supply chain management system with a novel hierarchical AI system that combines the use of the Transformer-based demand forecasting and Proximal Policy Optimization (PPO) reinforcement learning. The predictive engine creates probabilistic store-SKU-day...

This research investigates the performance and economic viability of electric motorcycles converted from conventional internal combustion engine (ICE) motorcycles in Indonesia. The study focuses on optimizing the continuously variable transmission (CVT) system, a crucial component in these conversions....

Reinforced concrete is a composite material that has had an impact on development in recent decades. Based on this condition, it is necessary to anticipate the reinforced concrete forming materials, one of which is the steel reinforcement. Bamboo is a material that can be renewed by nature, possibly...

The train is composed by carbody, frame, bogie, interior and exterior. Material selection for the car body of the car from metal. Corrosion is a weakness in metal materials that occurs due to the surrounding environment. One way to reduce the corrosion rate of metals is by coating. This study aims to...

T-cell acute lymphoblastic leukemia (T-ALL) is a highly aggressive hematological malignancy. Current treatment options, including chemotherapy and targeted therapies, are limited in efficacy for certain patients, underscoring the urgent need for novel therapeutic strategies. Recent studies have highlighted...

Predictive studies traditionally appeal to a new scientific result. What does determine the level of uncertainty of predictive research: the future period (time), future technologies (object) different from today’s solutions or the methodology for conducting predictive research (method)? The task of...

Steel grid is an effective reinforcement material for improving weak foundations and it is necessary to conduct in-depth research on its mechanism. Finite-discrete coupling method was used for numerical simulation of steel grid pull-out test in gravels. By analyzing the mechanical response of particles...

This paper mainly introduces the model matching method in fault determination of an application, first before applying the model matching method for characteristics of principal components analysis, reducing their dimensions to improve the performance.

Based on typical scale-free network models, we set up the partial differential equation satisfied more general dynamic systems, and then we not only find another important topological property of scale-free networks, but also discuss the real background meaning of every function in the dynamical systems....

Fault-phase selection is an important link on corrective actions of high-voltage transmission lines protection, but also an important prerequisite for accurate fault location. The traditional fault phase selection method is only applicable to simple fault, low sensitivity, and easily affected by system...

In the modern war electromagnetic spectrums are used by many kinds of guided weapons involving radio, microwave, infrared, laser, etc. To countermine such weapon systems, the smoke jamming technology is highly paid attention to because of its simple operation, obvious effectiveness and high efficiency...

This paper adopted the model of the particles to predict oil film dynamic drift process. The prediction was supposed to happen in the channel of Changxing Island, and it carried through under four kinds of circumstances. The circumstances are no wind condition, NNE, WSW and SSW. Through simulating the...

The key to adopting DSP technology to deal with multiple images into a high quality wide dynamic image is to adopt a suitable synthesis algorithm. In order to solve the puzzle of synthetic effects in image by image synthesis method and weighted average method based on relative illumination, the paper...

This paper focuses on the theory of side information generation, and puts forward an improved scheme based on unsupervised learning of motion vector which improves system's performance. The scheme generates and optimizes side information through the introduction of rate control at the encoder and EM...

The L1 performance analysis is studied for continuous-time interval positive systems. In this paper, necessary and sufficient conditions for stability and L1 performance are established for positive linear systems through linear inequalities.

Purpose of this paper is to explore Herba Sarcandrae anti-tumor effect and related mechanisms. Methods Now Chinese Journal Full-text Database (CNKI), Chinese Biomedical Literature Database (CBM), Wanfang database and VIP database aggregated from 1994 to the relevant literature and 2009, and summarized...

In view of the quick return characteristics of I and II type crank rocker mechanism, the inner relationship between the size of components is analyzed. The parametric model of mechanism is established based on ADAMS software, then, with the minimum transmission angle to take the maximum as the optimization...

Classically, in the field of photovoltaic, porous silicon (PS) is used as an antireflecting layer, but these last years, we are interested in a new application of this material, which allows, by technologies very different from proceed usual to detach from the singlecrystal thin layers from a substrate....