Advances in Engineering Research

A temperature compensated phase-locked loop (PLL) frequency synthesizer with small locking time is presented. The locking speed is improved by combining the methods of direct frequency presetting and dynamic loop bandwidth. A new technique of temperature compensation combining the static temperature...

Blueberry was one of the five healthiest fruits in the world. We observed the phenophase in six blueberry varieties from the leaf buds germination period to the fruit maturity period. The six blueberry varieties included ‘EM’, ‘Biloxi’, ‘Pink Lemonide’, ‘O’Neal’, ‘Sweetheart’ and ‘Brigitta’, in Nanbao...

The solution of the applied problem in the numerical classification determination and identification of social objects realized on the basis of the model of the bi-subject assessment of objects with arbitrary nature is offered. On the basis of the general approach there is a developed model for the assessment...

In order to simulate gas drainage in low-permeability fissured coal considering double pores arranged symmetrically or asymmetrically, a dynamic model which can use a large pressure gradient is constructed based on Lattice Boltzmann Method (LBM). Different two pores drainage messures are studied respectively,...

In this paper, we calculatate high power of Fibonacci numbers by elementary mathematical methods and prove an interesting identity between the binomial coefficients and the high power of Fibonacci numbers.

Demographic attributes such as gender of consumers provide important in-formation for marketing, personalization, and user behavior research. With the growing necessity for gender information in personalized intelligent systems, gender prediction of consumers has become an important research issue. This...

The article presents the results of spatial analysis of innovations diffusion in the agriculture of the Russian Federation regions based on the use of GIS technologies. The research includes traditional and mathematical methods as well as geoinformation-cartographic modeling. This paper presents various...

An effort on nutmeg agribusiness development can be implemented through agricultural product diversification, where the product is not only sale as primary product but it can be developed to the secondary product. The aim of this study is to analyze the financial feasibility of nutmeg syrup at KieRaha...

Postoperative peritoneal adhesion formation after surgery is result of peritoneal surface trauma and tissue ischemia. anti-adhesive agent is one of methods to reduce tissue adhesion. Honey has a long history medicine as anti-inflammatory, anti-bacterial and wound healing agent. Thirty-six healthy male...

Soil erosion is a common challenge faced by geotechnical engineers, occurrings naturally in the environment due to wind, water, and gravity. The loss of soil from the land surface can be detrimental to both terrestrial and aquatic environments by depleting nutrients, increasing runoff and affecting aquatic...

Empty fruit bunch (EFB) of palm oil is an abundant by-product that is resulted from the crude palm oil (CPO) extraction process and has great potential for bioenergy application. However, EFB has a high content of mineral such potassium (K) and silica (Si) that result in a negative impact on boiler like...

The main problem in construction is the lack of quantities of land to build the infrastructure, such as roads, buildings, dams, etc. Meanwhile, the technical specifications for soil are often not suitable for the requirements for the building base. Soft soil is a problem in construction due to its unsupportive...

The increase of CO2 emission is the main actor of climate change. Indonesia committed through NDC at COP26 to reduce GHG emissions by 31% and achieve NZE by 2060. Indonesia’s State Electricity Company, PT PLN, has planned to develop 20.9 GW of renewable energy power plants by 2030 including PV Power...

This research presents the implementation of the Linear Quadratic Gaussian (LQG) Controller and LiDAR sensors on the quadcopter used to avoid obstacles. The LQG controller is a combination of a Linear Quadratic Regulator (LQR) with a Kalman Filter as a State Estimator. The results of the estimate by...

With people's attention to environmental protection, as well as the continuous optimization of environmentally friendly materials synthetic stone, it is gradually becoming one of the main materials for interior decoration. The research on synthetic stone materials can promote its application as...

Although the commercial business area has witnessed successful applications of BI technologies, in the noncommercial education institute, BI is still in its early adoption phase, partly due to the budget constraint. In addition, the introduction of new Internet-of-Things technologies in campuses brings...

This paper through the existing video files, moving object is obtained by matlab programming background subtraction division of the foreground image, to extract the contour parameters. Contour parameters of the foreground image can be gained by analyzing the variation coefficient, then through the analysis...

Fly-ash and slag are the commonly used concrete admixtures, and can improve the durability of concrete. In this paper, the influence rules of different contents of fly-ash and slag on the workability and the capacity of resisting plastic shrinkage of concrete were investigated through a series of experiments....

This paper introduces the basic principle and method of module division. Based on the structure analysis method. Module division of the wall jib crane is done. The product design system of wall jib crane is established by the Autodesk Inventor software. The data base system depends on Excel. The secondary...

According to the heat balance of coke oven, the key to energy saving of coking industry was made clear. The technology of flue-gas heat recovery with radial heat pipe was introduced. Then its advancement was described. By giving an example, the application of radial heat pipe in coke-oven proved that...

Feature extraction is the key technology in the process of image retrieval based on content. This paper puts forward an improved algorithm of image retrieval based on combined BTC color moments and DT-CWT. We firstly select the YIQ color space as the feature extracted space due to the strong correlation...

In order to study the basic mechanical properties of chopped basalt fiber reinforced concrete (BFRC) and the impact of basalt fiber reinforced concrete by fiber content Experiments are conducted to examine the splitting tensile strength of this new composite construction material at different fiber volume...

Using the observed fog data in Shanxi Province during 1961 to 2010, the distribution and longtime variability trends have been analyzed. Results show that the fog mainly occurs in the southeastern areas and decreases towards northwest. 40 percent fogs have occurred in fall, 26 percent in summer. The...

The underwater landslide often appears in the construction of underwater facilities, causing serious personal property damage. It is of great significance for engineering design and disaster prevention to simulate the large deformation and two-phase flow problems. Smoothed Particle Hydrodynamics (SPH)...

This article was based on the serious water inrush accident of Kunlun Mine, Kunlun Town, Zichuan County, Zibo City. According to the old gob water inrush mechanism, combining with the results of the numerical simulation, it analyzes the causation and the conditions of this accident, discloses the evil...

In this paper, it was mainly discussed the electrical field analysis of the high voltage outlet in the insulation structure, which was a part of the transformers manufacture. Firstly, the electrical field of 500kV transformers-outlet devices inside the enclosure was modeled in Maxwell electrostatics...

Sports training includes physical, skill, tactics, psychology and intelligence ability training. The physical training is an important part of sport training among them. Physical condition has direct influence on the athletes' performance level. We should carry on the analysis on the physical training...

In milling, it is important to research the stability lobes charts which determine stable regions where no chatter occurs. This paper presents the nonlinear model of milling considering the variable helix angle. Base on this model, an improved semi-discretization method is used to predict stability....

This article embarks from the challenges faced by construction of low-carbon city in Guiyang, using DPSIR model, from five aspects, including driving, pressure, status, impact and response, build a set of evaluation index system composed of 23 indicators. With this index system, the typical low-carbon...

Reconstructing surface from the large scattered data is a ubiquitous problem in reverse engineering. Implicit surfaces reconstruction methods using Multiquadric function have recently attracted attention for its high precision and continuous order. This paper get the relative efficient proportion of...

The methods of multiple regression analysis and simplified calculation were used to predict the benchmark of office building energy consumption, the features and the applicabilities of the two methods were discussed based on the comparation of predicted results, and the benchmark of office building energy...

With the continuous improvement of people’s living standards, there has been a higher requirement of buildings’ construction level. In order to create a favorable living space, the current construction departments should emphasize on optimization of water supply and drainage system design during...

In order to achieve adaptive control and single parameter identification of one order system, an ordinary adaptive control method is used in this paper. By introducing integral control and considering multiple variables, an adaptive control law is designed, and the result of parameter identification...

Mainly the hardware design of the traffic monitoring system is researched in this paper. The whole design includes selection of the turbine flow sensor, MCU peripheral circuits and the process for the software design. The collected traffic data through the mathematical model are analyzed and calculated...

Urban floods are a frequent disaster in Indonesia and cause road damage with the relatively high cost of repairs every year. Durability test of water damage of asphalt mixture on mild temperatures, such as indirect tensile test did not show the weakness of asphalt mixture. Therefore, this study aims...

Automotive alternators problems constitute about 21 % of total automotive electrical faults. Fault in automotive alternator can cause different implications, ranging from fault in battery accumulator or electronics through road traffic accident. Fluctuation of output voltage is accepted as the main diagnostic...

It is obvious that information and communication technology (ICT) have been widely used in agricultural sector in the last decade. Theoretically, ICTs propose to increase the efficiency of agricultural marketing since this could reduce marketing supply chain, thus increasing marketing efficiency. This...

Defects can come into being on the surface of stranded conductors, which will affect the corona onset voltage (COV) of conductors. To unveil the regularities of defects' impacts on the COVs, a series of AC corona tests of different defective conductors were carried out in a corona cage. Relationships...

The GPS/INS integrated navigation system has a strong complementarities among the subsystems. It has a very broad application prospects and an important role. In this paper, the development of the satellite navigation system and the inertial navigation system is introduced, and the current situation...

Oblique photography technology is a new earth observation technology which is developed in the international field of surveying and mapping in recent years, and it can reflect the features of the real situation of the surrounding. Besides, oblique photograph can greatly promote the application of remote...

Generally, syrup production requires press machine to minimise time production. This paper reports detail design and construction of mangrove fruit press for syrup production purpose. The previous survey of syrup production in Wonorejo Rungkut Surabaya indicated that time production took a long duration...

The Covid-19 pandemic has an impact on the tourism sector. Virtual tours become an alternative to adapt to the Covid-19 pandemic. The Geotourism Festival held online in June 2020. However, the environmental conditions such as endemic flora, fauna, landscapes, and ecosystem services could not be covered...

An information system is an organized way to collect, input, process, and store data, and to store, manage, control, and report information in such a way that an organization can achieve its stated goals. Mulawarman University has a website related to academic services, namely the Academic Integrated...

Indonesia is a country that has various types of livestock. Elephant grass is cattle food which needs to be cut into pieces (chopped) before being given so that the distribution of food to all cattle is even. The aim of this research is to determine the performance of an elephant grass chopper using...

The combined application of Carbon Fiber Reinforced Polymer (CFRP) and recycled aggregate concrete is of great importance in conserving resources and reducing environmental pollution. A dynamic experimental study was conducted using a double-sided shear test method, and the bonding behavior of CFRP sheet-recycled...

The output power from solar panels is a major problem because it is not constant which is influenced by the tilt position, solar irradiance, the type of solar cell and the technical nature of the module. Solar panels will work optimally and efficiently when the maximum number of light particles from...

With the rapid development and continuous progress of wireless communication technology, the role played by wireless perception technology in the field of behavior and gesture recognition has become increasingly important and prominent. Therefore, this paper summarizes several current behavior and attitude...

On the basis of analyzing the distributed VOD system architecture, this paper introduces the cache management strategies and cache replacement algorithm. And it explains the cache replacement algorithm of the distributed VOD system based on P2PVOD framework. On this basis, it further discusses various...

This paper proposes a new type of circuit breaker mechanical characteristic test method, which breaks through the former "contact" sensing technology. It adopts the technique of multi-data fusion, combines with electrical, sound and vibration, and studies the circuit breaker mechanical characteristics...

This paper proposed an efficiency evaluation model for cooling system of the split type transformer using ADC (availability dependability capacity) method. This proposal is presented based on the principles and the sophisticated characteristics of the split type cooling transformer. Data acquisitions...

Luminance ratio or contrast is a key indicator for accessible signs' color design. Existing researches had different results due to inadequate consideration of influencing factors. This project designed a subjective evaluation experiment within normal illumination environment, the minimum luminance ratio...

With the development of new energy vehicles in technology and industry, as well as the government's financial incentives and related policies' support, the new energy vehicles are constantly popularization and development, especially electric vehicles. More and more people choose electric vehicles as...

A previous study showed a developed mathematical model could describe the transport of perchloroethylene (PCE) in the simulating column. This study tried to use the model to predict the transport of pollutant in low organic carbon content aquifer. The results told that the concentration variation characteristics...

Now human beings are facing three major issues: resources, environment and population. Environmental problems are closely related to resources and issues of resources are the main reason of environmental problems. With the deterioration of environmental problem, people attach more importance to the study...

Sampling rate reduction is a key to spectrum analysis of broadband signals. To avoid spectrum aliasing, the sampling rate for broadband signal is always too high for implementation. In this paper a new spectrum analyzing method based on respectively signal is proposed. Compared with conventional FFT,...

This paper proposes a new 6-RSPS structure of vehicle simulation that can successive rotation, and studies the affect relationship and regularity for rotation angle error effect on motion platform pose error. We built an error model according to independent function principle of error and differential...

The Western Depression of the Liaohe Basin is the major exploration area of the Liaohe Oilfield, and the production formation of Guantao in Du84 block of the Shu-1 area contains extra heavy oil with a depth of 530-640m. Steam Assisted Gravity Drainage (SAGD) method had been applied to the development...

The deficiencies of array elements causes the decrease of angle survey precision when detect low-angle estimation. In order to solve this problem, this paper transform the data missing matrix which isn’t meeting the condition of the SIP into appropriate one based on the MC theory by using the Hankel...

With the development of the seismic numerical modeling theory, a group of scholars do lots of seismic forward modeling studies. In this paper, wave equation finite difference method(FDM)[1] was used to build models of submarine fault and slide and forward seismic modeling. By studying character and imaging...

The turbulence and flow rate around the specimens were analyzed by Fluent and results indicated that specimens installed in the pipeline varied the fluid flow direction, highly increased the flow rate nearby and formed strong turbulence around the specimens, the max turbulence in work areas could reach...

In order to discuss the failure mechanism of concrete filled steel tube lattice wind turbine tower joints. Based on the parameters of abdomen strut section form, and using nonlinear static numerical simulation, this article research on the stressed complex joints. The results of the study show that the...

For a more rapid and accurate coastline identification method, this paper presents a method of coastline identification on remote-sensing image using Informative Vector Machine and then the coastline of Beihai Silver Beach in Guangxi has been identified. The results show that method of coastline identification...

The Lancang-Mojiang ancient Tea Horse Road is an important branch of the Puer Ancient Tea Horse Road. With the development of urbanization, the Tea Horse Road and its spatial have been changed dramatically, and the cultural heritage along the road faced the threat of gradually disappear. This article...

Energy supply is one of the essential concerns for spacecrafts in space, which directly effects the expected lifespan of the spacecrafts. Solar energy, which is just second to nuclear energy, is almost the most convenient and secure sources of energy for spacecrafts in orbit. Main Influence intervals...

The simplified non-linear unit model not only can provide the inherent rules by control system design, but also can be use as a simulation process to evaluate the performance of the control algorithms. Using the nonlinear mapping characteristics of Online Support Vector Machine (Online SVM), the dynamic...

Aiming at the difficulty of determining the key parameters when applying ant colony optimization algorithm (ACO) to traveling salesman problem, we propose an improved particle swarm optimization (PSO) algorithm for adaptive parameter acquisition. Because repeated calls to ACO will increase the cost of...

Aiming at the problem of drug waste and drug management that is prevalent in social life, and at the same time making up for the shortage of medical kits on the market., this paper takes the 16-bit single-chip MSP430F4616 as the core according to the micro-power, functional and real-time design requirements,...

The grouted clamps will strengthen the offshore platform jackets which have fragile nodes and the damaged structure underwater. Theoretical analysis of buckling on the jacket was done with buckling theory under uniform axial compression and the method of finite element analysis under the condition of...

Digital signature, a cryptographic algorithm, provides integrity, authentication and non repudiation messages.In the literature, several certificateless signature schemes have been designed. However, most of them are vulnerable to the ephemeral secret leakage (ESL) attack.We propose a new secure certificateless...

Data centers worldwide have consumed massive amount of energy. The server processor energy efficiency has the biggest impact on energy usage in data center. In this paper, factors determining the processor circuit power are introduced and different power saving techniques are briefly reviewed. A novel...

WiMAX is a promising technology for a higher spectral efficiency and reliable transmission. This paper compares the downlink throughput experienced by mobile users in a macro-cell in an interference limited scenario with a frequency reuse of one. Bit accurate link level simulations are performed for...

For the irregularity of the road caused by vehicle bridge coupling vibration has always been a research focus in the engineering, and simulated bridge deck roughness of many kinds of methods. The introduction of white noise, the concept of reproduction of bridge deck roughness, based on vehicle bridge...

In modern steganography, designing a distortion function to get the cost for every cover elements is an open problem. Many researchers have proposed a lot of different valuable distortion functions from different point of view. In this paper, the distortion function are classified to three categories,...

This paper focuses on the application, characteristics and advantages of composite girder with corrugated steel webs at home and aboard. The comparison between concrete girder and composite girder includes material quantity, intensity and stiffness. The results show that composite beam has saving on...

The anti-sliding performance of pavement is significant to the driving safety. In winter, frozen hazards are occurred easily in humid areas. Deicing salt is widely used to dealing with freezing for its reasonable price and remarkable effects. However, the usage of deicing salt dramatically damages environment...

Based on current conditions, Access to the Bailey Mountain Bentang Bridge has problems related to the road network, including steep slopes and sharp bends. Therefore, the geometric design of the access road to the Bailey Mountain Bentang Bridge Bridge is considered necessary as a solution to the problems...

The development of marine resources and deep-sea engineering construction is a crucial strategy for national security and sustainable development. However, the potential engineering geological hazards such as reservoir subsidence, wellbore instability, and submarine landslides during the extraction process...

To accurately extract key factors from unstructured traffic accident texts and identify the interaction mechanisms among factors affecting the severity of accidents during such projects, a combined deep learning model based on BERT-BiLSTM-CRF-WApriori model is proposed. It blends Bi-directional Encoder...

Green buildings offer significant solutions to global environmental challenges. Nonetheless, adopting green building technology in small island tourist destinations, such as Bali, faces complex obstacles that are not yet fully understood. This research aims to identify and analyse barriers to adopting...

The travel and green food tour industry has become one of the biggest industries in the world, as well as an important direction for the development of China's contemporary economy. After the Chinese government implemented the two-day weekend policy in 2001, domestic food green food tour has becoming...

In this paper, the steady state and transient model of the DFIG system are analyzed. It is concluded that the PI controller parameters and stator transient current are influenced by different parameters of the system, including resistance value, generator rotor inductance or sag magnitude of power grid...

Development and improving and bringing very great impact to network of the network technology of the computer, the security question of the network has become one of the focuses of the social safety question of information. In this paper, through the analysis of computer network information security...

In this study, polymer concrete (PC) samples were prepared with aggregate, standard sand and unsaturated polyester (UP) resin, the optimal gradation and formula were investigated by orthogonal test. Results show that aggregate gradation is the most important factor in PC mechanical properties. The optimal...

Surface water in Hangjiahu area is characterized by high content of NH3-N and organic micro-pollutants, which is in need of biological pretreatment process in water treatment plant. Based on the comparison of the characteristics of four biological pretreatment processes such as biological oxidation pond,...

To solve the problem that students do not understand what they learn, and to improve the effect of teaching, the author constructs an instruction model for promoting understanding supported by information technology. To test the instruction model, the author designs and carries out a study which is a...

This paper researched about the MTBF evaluation method and the reliability improvement technologies of typical power adapter. Firstly, the basic structure of a typical power adapter was introduced; secondly, the reliability model was built, and the reliability parameter MTBF was evaluated; thirdly, some...

Han River is the largest tributary of the Yangtze River, the hydrodynamics characteristics in the lower Han River is under the influence of upstream flow and sediment discharge and the backwater level of Yangtze River. Based on the one-dimensional hydrodynamic mathematical model, the hydrodynamic characteristics...

In wireless multimedia sensor networks (WMSN), visual correlation exists among multiple neighboring sensors. Overlapping Field of View in dense networks leads to considerable redundancy in the collected images. A spectrum efficient clustering mechanism is proposed for efficiently gathering images in...

In this paper, we consider function projective lag syn-chronization of two identical hyperchaotic systems. Impulsive control method is employed to design a controller to achieve function projective lag synchronization. Based on the Lyapunov stability theorem and impulsive control theory, a sufficient...

The usefulness of accelerometer for assessing physical activity has been widely accepted in recent years. In this paper, a portable measuring instrument based on triaxial accelerometer was presented, also the overall design scheme of the portable measuring instrument was expounded emphatically, and combined...

The Burzyan population (Apis mellifera mellifera L.) of honeybees is considered the purest European dark bee breed in Russia. However, it is losing its thoroughbredness these days since its gene pool is intensively disturbed by southern imported bees. If left unaddressed, the brand asset of the Republic...

Theoretical prerequisites for drying wheat seeds based on differentiation of the supply of thermal energy are presented. It is alternation of heating and cooling processes. In the structure of the theoretical premises, terms of efficiency of grain heating and efficiency of evaporation of surface moisture...

This paper presents a novel parallel combinatory spread spectrum (PC/SS) communication system which combining with channel estimation technology. It can be used to realize adaptive variable-rate data transmission. When the channel condition changes during the communication process, the number of the...

In this paper, we present an efficient and fast way to prevent traffic blockage by controlling traffic signal. A new model is adopted to out program which is fused and developed by probabilistic model and cellular automatic model (CA model). Based on this model, we used wavelet neural network (WNN) for...

In a variety of environmental pollution problems, excessive air quality decline caused by PM2.5 has become a hot topic of social concern at home and abroad, PM2.5 concentration over the adverse effects on human health has been generally recognized, but on PM2.5's influence on the population, social and...

With the rapid development of China's transportation industry, the scale of road and bridge works is increasing, and the construction quality of road and bridge has become an important work content of the transportation industry. The quality of the road bridge project is in addition to the material,...

Based on the Ježek method of computing elastic-plastic buckling of compression-bending member , analytical solutions of buckling ultimate load for rectangular column strengthened by carbon fibre sheets are derived. A new method of theoretical research on elastic-plastic buckling of steel member is provided....

Higher education institutions are one of the centers of research activities throughout the world. The amount of research and research results that can be commercialized is not comparable. The policies for the independent campus and the independent learning have an influence on the research amount. Research...

This study focused on the phytochemical and anti-diabetes activity of n-Hexane, Ethyl acetate, and Methanol Extracts of Matoa (Pometia pinnata) fruit peel from West Kalimantan Indonesia using Alpha-Glucosidase enzyme. The experiment consisted of three stages, which are 1) extraction of the Matoa (Pometia...

Microcontrollers are common components used to control electronic systems. To implement a microcontroller according to the desired scheme, a program or sketch upload process is required. If there is a change in the desired program scheme, the developer must modify the program and reupload the sketch...