Advances in Engineering Research

With advantages of no mechanical contact, vacuum compatibility, oil-free, and high reliability, an eddy current damper (ECD) is designed for use in space. To obtain perfect damping characteristics, a conductor as an outer copper tube and two stationary plates, and an array of axially magnetized ring-shaped...

Pipeline transportation plays an important role in the resources deployment and economic development of our country. Its dimensional repair technique is an important guarantee to ensure the safety and reduce the loss. Tapping machine draws a lot of attention as the key equipment. According to project...

The frame structure of reinforced concrete is a kind of structural form with good seismic performance. But the strong earthquake damage show that the RC frame structure under the large earthquakes will also be seriously collapsed and destroyed. In the case of strong earthquake, the RC frame structure...

Dynamic consolidation of virtual machines (VMs) is an effective way to improve the utilization of resources and energy efficiency in grid computing. We propose a novel load balancing approach that combines the Group Method of Data Handling (GMDH) based on Geneticalgorithmfor host overload prediction...

As an important part of the power system, the running state of HV overhead transmission lines has direct influence on the security and reliability of power system. So it is important to develop an on-line monitoring system of HV overhead transmission lines. In this paper, a micro controller and wireless...

There are thousands of truck modelsin the market. It is necessary to study the distribution characteristics of motor power since the rated power mismatch is a very serious problem currently.The truck models of maximum total mas range from 5 tons to 7 tons have been analyzed. Construct statistics for...

Taking the full network observability of power system operation state and the least number of phasor measurement units(PMU) as objective, this paper proposes an optimal PMU placement algorithm based on an improving teaching-learning-based optimization algorithm(ITLBO). Phasor measurement units can measure...

The studying about the seismic performance of shallow and spherical shells with ribs and rings is very lack. So it is necessary to study its dynamic response under earthquake. In this paper, the finite element model is established by ANSYS software. The first 10 orders of natural frequency and mode shape...

A significant environmental problem for the coal regions of Russia is the presence of large volumes of fine-dispersed coal sludges formed during the operation of coal mines and coal-preparation plants. In addition to direct environmental damage, storage of these sludges in sedimentation tanks, hydro-dumps...

This paper introduces the concept and basic framework of 3D model retrieval technology based on shape distribution, At the same time, according to the shape feature extraction and processing method of the model, the retrieval technique is introduced and applied in detail. This paper focuses on how to...

This paper presents the VFTO calculation and analyzing results of XiMeng UHV pilot project in China. The result shows that the maximum voltage amplitude of VFTO in GIS is 1981kV, so that the pre-insert switching on off resistance is not necessary to installed on disconnector. In this case , it will reduce...

Airlines deregulation is intended to remove state-sponsored protectionism, leading to economic liberalization so that entry conditions are easy and cheap, but the results were mostly disappointing. The research used a method of Structure, Conduct and Performance (SCP method). The results of this study...

According to investigation, existing works of security testing for Single Sign-on systems (SSO) on the Security Assertion Markup Language (SAML) are based on partially automatic code review methods, which lead to a low level in effectiveness and reusability. In response to these limitations, a new automatic...

This article studies the trigger strategy in dynamic migration process of virtual machine under cloud computing environment. For the problem of resource wasting caused by instantaneous peak in simple double threshold trigger strategy and single threshold trigger strategy, we propose ARMA time series...

Exploratory data analysis (EDA) is an important stage in a data science cycle. In this research, the EDA process is carried out on the elementary school student dataset derived from the student “interest” and “talent” questionnaires. The purpose of this research is to find recommended features that will...

The increasing integration of renewable energy sources and prosumer-driven energy exchange has made smart grid stability a critical challenge for modern power systems. This study presents a comparative machine learning framework for predicting grid stability using a synthetic dataset derived from a four-node...

The Covid-19 pandemic has forced learning to change. As stipulated by the government, students of all levels of education, from early childhood to higher education, must eventually study from home through online learning. The online learning process would be effective if it is supported by media and...

After China entered the stage of deep aging, long-term care insurance, as an important institutional innovation for addressing aging in China, has been expanded to 49 cities since its pilot program in 2016.Methods: This study summarizes the practical situations of long-term care insurance fund raising...

Foot and Mouth Disease (FMD) is an extremely transmissible viral illness that specifically targets cloven-hoofed animals, such as cattle. It is caused by the Foot and Mouth Disease Virus (FMDV). Traditionally, FMD detection involves manual observation by trained veterinarians, which is time- consuming...

Background: Malaria is a disease caused by Plasmodium parasites (P. falciparum, P. ovale, P. vivax, P. malariae, P. knowlesi) infection often caused by the bite of female Anopheles mosquitoes which have Plasmodium parasites in their salivary glands. Plasmodium develops in the human liver and then invades...

Accurate brushless DC motor position control is the basis for realizing various high-precision control systems. In order to achieve precise control of brushless DC motor position and improve control stability, this paper proposes a fuzzy PD control method based on the improved ant colony optimization...

The flue gas emitted from conventional natural gas boilers contains a large amount of water vapor, which cannot effectively recover the latent heat of water vapor condensation due to its failure to lower the flue gas temperature below the dew point temperature. This study adopts a heat pump and a counter-current...

Effect of Magnetic Guidance Error On Location Of The Magnetic Guidance On The Ship And Its Relationship With The Movement Of The MV Chandra Kirana on Ship Movement (supervised by Eva Susanti P., S.Si.T., M.T., and Agriani Pongkessu, S.Si., M.Pd.). Variations and variances in magnetic guidelines cause...

Customer relationship management system can help companies manage the relationship between businesses and customers. With customer relationship management system, companies can interact with the unified management of sales, marketing and other departments and customers, to explore more business opportunities....

In modern conditions, one of the most acute problems for the coking industry include deterioration of raw material base for coking and coking coal deficit. The negative impact of the deterioration of the raw material condition on the yield and quality of coking products can be compensated by the increase...

In recent years, the environmental problems have been ceaselessly springing up and the low-carbon orientation has become the inevitable choice to tackle the environmental problems in the field of architecture. Under these circumstances, the construction of low-carbon salving architectures for low-income...

This paper studies static synchronous compensator (STATCOM) accessed in the system via intermediate taps on transformer high voltage wingdings. For Dyn11 type transformers, the proposed circuit configuration of DT-STATCOM is analyzed, and the function of reactive power compensation is verified. Then,...

Centrifugal fan is most widely used as an important component in ventilation system. The performance of centrifugal fan is sensitive to the inlet environment; therefore inlet flow distortion is one of the most attention problems. Numerical investigation has been carried out for the comparison of two...

La0.9Y0.1MnO3 powders have been synthesized at different temperatures by the traditional solid state method. The crystal structures have been characterized by X-ray diffraction (XRD). The electromagnetic parameters were measured by vector network analyzer (VNA) within the frequency range of 8.2-12.4GHz....

To understand the spatial variability of soil nutrients in plantation forest in depressions between karst hills, we examined the characteristics and spatial variability of soil nutrients in Juglans regia plantation in Fengshan County, Southwest China. Most soil nutrients had moderate variability, and...

In order to improve power quality and ensure stable operation of power system, shunt active power filter (SAPF) is widely used o filter out harmonics. This paper proposed an improved control method for SAPF. The whole improved control strategy could be divided into two parts: Ip-Iq current detection...

In order to study the heat insulation and indoor light adjusting ability of fabric, the optical properties of usual shading fabric were tested using spectrophotometer which measurement range is 190nm~3300nm. Under different open porosity, the ultraviolet transmittance, solar direct transmittance, solar...

Ordinary concrete is four components, and the six components of green high performance concrete, more than the ordinary concrete admixture and high efficiency water reducing agent. The strength of green high performance concrete fast nondestructive testing is an important aspect of development of its...

To improve the nonlinear modeling capability of RBF neural network, an Artificial Fish Swarm Algorithm (AFSA) training algorithm with an adaptive mechanism is proposed. In the training algorithm, the search step size and visible domain of AFSA algorithm can be adjusted dynamically according to the convergence...

Through and half-through arch bridges are modern bridge types due to the development of steel as a building material, in which up to now the dead-load of the deck system and the live load are transferred to the arch rib by steel suspenders. However such suspenders are due to complex mechanical loading...

Project after the authenticity of the evaluation results to a large extent depends on the rationality of the evaluation method, this article in view of the construction project post-evaluation of current method is a systematic research, and put forward the factor analysis method used in the construction...

The Carbon fiber continuous sucker rod has wide application in oil field, but currenttly it adversely affected by the lack of processes and operations devices. In order to solve these problems by using combination of activity diagram method on the existing vehicle, based on second-class chassis , puts...

The importance of continuous temperature measurement in vacuum furnace to realize the temperature control of vacuum furnace is expounded by the universality of the vacuum furnace application and the control of the quality and process of the applied products. This paper briefly introduces the traditional...

The increase in passenger flow and the transport speed requires a correspondence of designed vehicles to the high requirements of environmental and transport safety as well as energy efficiency. The compliance of vehicles to high quality standards encourages world manufacturers to develop new types of...

In the context of global energy crisis and climate change, tidal current energy is one kind of marine renewable energy rich in total resources with little effect on environment and higher TRL and have promising prospects of utilization in the offshore region of China. Although significant progresses...

Quantize influence to the society in terms of three factors (income, education and social equality). Influence of income includes the minimum wage and salary distribution, and educationcan be reflected by the ratio of education in welfare investment, while influence of social equality include maternity,...

The preparation of high-strength mortar with super fine sand from waterway engineering and the improvement of its mechanical properties by mineral admixtures were studied in this paper. The effect of fly ash, silica fume and both of them on compressive strength and flexural strength of super fine sand...

In order to solve the problem of the communication between the heterogeneous network and the various types of equipment and the Internet, a new, Vehicle heterogeneous network interconnection model based on Linux virtual device. In this model, the dynamic load characteristics of Linux modules and the...

In order to select reasonable excavation method of tunnel engineering in complex conditions, model test was done for large-span and shallow-buried bias tunnel in cobble and gravelly soil layer, the reasonable excavation scheme was determined by analysis of tunnel surrounding rock and internal support...

This study aims to determine the structure of production costs, revenue, profits, and feasibility of farming of potato farmers using ex vitro and non ex vitro seeds in Batur District, Banjarnegara Regency. The location of the study was determined purposive and sampling of farmers using ex vitro seeds...

Rubber is the most valuable export crop produced by small scale agriculture and plays a crucial role in inclusive economic development. Rubber becomes very close to the farmers because of cultivation and processing techniques and provides economic value directly. Jambi Province also one of the third...

Squid, known with scientific name Loligo sp, is a group of cephalopods or a type of Mollusca living in the sea, with horizontal distribution area from coast to open sea and vertical distribution area from sea surface to thousands of meters under sea surface in water column. Until now, squid production...

Theft of durians is a prevalent issue in Indonesia, particularly in regions where durians are cultivated. This results in substantial economic losses for durian farmers. Nocturnal robbers who often operate during the night can be detected using night vision technology. The objective of this study is...

Traffic safety in Indonesia is still an important issue as the number of accidents is high every year. One of the contributing factors is driver fatigue which affects driving behavior and speed. This study analyzed the effect of physical fatigue and mental fatigue of drivers on speed while driving on...

The Diesel Power Plant (DPP) utilizes energy from fuel, converting it into mechanical energy and then into electrical energy. Over time, changes in fuel types have been necessary to meet the electricity production needs of DPPs. As fossil fuels become increasingly scarce, alternative fuels such as biodiesel...

This paper is dedicated to the design of a 4 - bit absolute value comparator, aiming to resolve its power consumption issue. Initially, the logic effort method is employed to analyse the circuit structure, precisely identify the critical path, and optimize the sizes of devices on it to achieve the minimum...

The focus of this study is structural design optimization of a stiffened composite cylindrical structure. Two different composite structures with T section and hat section stiffeners are used. The material used is carbon fiber reinforced epoxy. The deformation and stability capacity of composite stiffened...

Preparation of lightweight blocks from phosphogypsum (PG) is one of the effective approaches for its utilization under current technical conditions. To clarify the applicability of cement-solidified PG composites (PGC) in outdoor environments, mechanical property tests were conducted on PGC under water...

An aqueduct is an important hydraulic structure for water conveyance, whose safety and durability are directly related to the normal operation of hydraulic projects and the effective allocation of water resources. In this study, based on temperature monitoring data from monitoring points during the segmented...

In view of the local image feature description algorithm of recent year, we compare them with SIFT, which is a classic algorithm. We found the gap of every kind of description algorithm with some image transformations, and this can be a reference when feature description algorithm used in some application...

A full three-dimensional flow-temperature coupled mathematics model was established combined with Feng-man station. At the same time, a physical model test was carried out. Based on the research for different ele-vations with 235.0~244.0m on water temperature discharged, it is pointed that the elevation...

Big data is a research focus in the academic and industrial circles currently, which is affecting people's daily life-style, work habits and thinking modes. But at present, the big data is confronted with many security risks in the collection, storage and use processes, privacy disclosure caused by data...

The purpose of this paper is to expound the big data problem under the background of information security; First of all, from the perspective of the concept of big data, talked about in the context of "Internet +", the importance of information security. Secondly talked in big data networks, some problems...

Abstract:The reason of high-strength vehicle structural steel cracked during cold bending was investigated. The large liquation TiN distributed in grain and the group gathered by multiple liquation TiN can be origin of crack, the mismatching of forming mould leads to large processing stress thereby causing...

In order to reduce the entire network sensor node energy consumption, this text gives an algorithm to track the target effectively and to reduce the energy using the uniform speed and variable speed motion target tracking in Wireless sensor networks as the background. In addition, in order to ensure...

This research designs the research model and tests it based on the Theory Acceptance Model. The five key factors (Reliability, Maintainability, Software, Facility and Transportation) are related with E-logistics system as independent variables. The results of this study confirm that the E-logistics systems...

cerebral venous malformation (CVM) is a rare disease which often result in misdiagnosis and missed diagnosis for its non-specific symptoms. we encountered a case of cerebral venous malformation with recurrent manifestations of perennial headache in 40-year-old woman.Through studying the main image features...

A tunnel construction in a nuclear power plant is proposed in this paper. Some useful conclusions are drawn through the analysis of the measured results including the stress state and process of structure and water and soil pressure. It is useful for design, construction of similar engineering.

Carbon footprint calculation methods and its application in cotton mill were studied. Overall idea of carbon footprint calculation in cotton mill as well as power consumption of each equipment in production was analyzed. It is pointed out that carbon emissions can be obtained by the indirect method of...

This work investigated the self-excited wind field caused by rotating knife rollers inside the air deflector during the operation of the sugarcane leaf cutting and returning to field machine. Based on the arbitrary Lagrangian-Eulerian (ALE) method, a fluid-structure interaction simulation of wind field...

In this study, the ability of wheat straw to adsorb neutral red (NR) from aqueous solution was investigated in a fixed-bed column. The effects of the flow rate, the influent concentration of NR and bed depth on breakthrough curves, were studied. The adsorption quantity was 26.4 mg/g at initial NR concentration...

In the conditions of autonomous functioning of special equipment, there is a need to use its internal sources. This can be accomplished using a heat recovery system of the internal combustion engine. For this purpose, the authors suggest a heat accumulator. The mathematical modelling of the thermal state...

Brownfield structures often occupy extensive areas in urban areas of our cities. Owing to this fact, the compactness of built-up area of settlements and their overall urban economy is strongly impaired, which affects adversely primarily the expenses on operation of cities. This paper makes efforts to...

With the cars in our country's rapid increase, the limited quantity of traditional car washing shop has been unable to satisfy people’s needs. Responding to this problem the author designed a set of self-service car washing machine control system based on ARM, and a set of remote monitoring system based...

To keep abreast of the situation of environmental air quality, improve the quality of life, based on the actual needs of the air quality safety monitoring, a location method of the air quality monitoring network is proposed based on ranging correction and recursive LS estimation. This method mainly includes...

Fluorine complex acid plug removal and sand consolidation agent is composed of trifluoroacetic acid, corrosion inhibitor, complexing agent, surface active agent. In this paper, the reaction mechanism, clay dissolution quantity, change of formation permeability, resistance to erosion intensity of fluorine...

Kampong Kulitan is forerunner of kingdom of landlord Tasripin keeps high historical value. The historical value that exists in the village is the Tasripin family house that has not been changed or renovated since its inception. These houses as historical evidence of the glory of Semarang past. Formerly...

The Tableau unordered surveying and mapping file retrieval system has some disadvantages, such as limited storage amount of resources, too long time of retrieval information export and so on. In order to solve the above problems, a new intelligent retrieval system of unordered surveying and mapping files...

Self-mockery, as an indispensable communicative device, has been playing an important role in our life. It can adjust intense atmosphere in communication, alleviate mental pressure and amend participants' relationship Self-mockery, mocks oneself apparently, but in fact it is not. Because, it is on the...

Multi-static radar multi-target projection localization method overcomes data association problem in the viewpoint of the imaging technique, in which the receivers are considered as a sparse antenna array that causes 2-D spatial resolution, and the transmitted broadband signal causes the range resolution....

Composite hydroxyapatite-collagen-chitosan as bone graft materials for bone fracture has been synthesized using ex-situ method. Combining the advantages of hydroxyapatite with chitosan and collagen as composites bone material that it show good biocompatibility and can bond with surrounding host tissues...

Energy from biomass sources has earned significant interest in recent times. In the present research, an attempt has been made to develop a pelletizing process to improve the properties of biomass pellets, as many of the important properties of the pellets are dependent upon the raw and additives materials....

This paper studies the effect of ambient temperature on the loses through performance of concrete, and discusses the effect of the control measures on improving the loses through performance of concrete. Through experimental observation and analysis, it is found that the higher the environmental temperature,...

Indonesian tofu industries produce wastewater with high amounts and concentrations of organic compounds that pollutes the environment. Biological treatment of anaerobic and aerobic systems can degrade organic compounds and produce appropriate effluents for disposal into the environment. Anaerobic degradation...

The Jakarta MRT has been operating on the Lebak Bulus - Bundaran HI line with a total of 13 stations with the farthest trip fare of the Jakarta MRT at Rp14,000. Currently, an extension of the Jakarta MRT route across Bundaran HI - Kota is being carried out by adding 8 stations which will be directly...

Sensor nodes (SN) have limited capabilities of coverage and connectivity. Relay nodes ensure backbone connectivity between SNs and base station (BS). Proper placement of relay nodes (RNs) has a major role in ensuring maximum coverage and connectivity in cluster-based wireless sensor networks (WSNs)....

Courses related to internet networks need to be updated according to technological developments. In this research, an IoT-based telemonitoring system was designed and implemented that is directly integrated with the learning system at the Sriwijaya State Polytechnic. The IoT device design in this research...

Rheology has a significant impact on the long-term consolidation behaviors of clays. The rheological consolidation theory plays a vital role in the prediction of deformation of the clays. In this study, the fractional derivative-based Kelvin model (FKM) and the fractional derivative-based Merchant model...

The influence of pyrolysis water which was used as molding water of powdered coal on molding coal pyrolysis conversion rate and semi-coke strength was experimentally researched in the pyrolysis experimental device independently developed by Beijing Shenwu Environment & Energy Technology Co., Ltd,. The...

Modern enterprises apply the work type of team extensively. Team leadership has been confirmed to be a key important factor in all the factors influencing team effectiveness. The paper adopts purposive sampling in questionnaire. In the research, the author selects teams in 16 enterprises and institutions...

Aiming at the difficulties in developments, high cost of torque sensing system of e-bike, a novel torque sensing system based on sensitive sensing component has been proposed. The signal acquisition component which includes a torque sensor based on a sensitive strain gauge, an electrical signal processing...

According to the local contrast and global distribution of an image, this paper detecting salient images through bottom-up data driven . First, this paper using adaptive segmentation method divided image into non-overlapping images, improved Block and Chessboar distance from a linear combination to replace...

In the Semantic Web of Things (SWoT), different type of sensors will collect a large number of real-time data and heterogeneous information. How to deal with these data and provide support for decision-making is a problem. Cloud Computing mode is particularly suitable for handling the large data sets....

Oil is one of the main ways to solve the energy shortage problem, in order to ease China's energy shortage situation, we must fully exploit the natural resources. China has abundant oil resources underground, underground oil resources exploitation, exploration drilling is the most effective way, it is...

This paper proposes a algorithm for 3D near-field source localization, which uses the cross array and fourth-order cumulant. We construct two high-dimensional matrices by using these six fourth-order cumulant matrices, according to the subspace theory, we can extract the rotation factors, which contain...

Polyaspartic acid derivative (PASP-SEA-ASP) was prepared from polysuccinimide (PSI) that was thermal condensation polymer of aspartic acid (ASP), taurine (SEA) and ASP. The structure of polyaspartic acid derivative was characterized by means of FTIR. The property of scale inhibition of PASP-SEA-ASP by...

Along with the further development of science and technology, computer hardware and the Internet are in a rapid development, and information technology has been widely used in all fields so that complex problems are simply solved. Because of the needs for the development, software starts to mutually...

Completion packer slips have the effect of supporting the packer by anchoring and locking packer rubber in high temperature and high pressure (HPHT) wells, which are an important component for ensuring the reliability of the packer. There are interactions when slips and casing contact with each other,...

After sequenced rotation with ordinary shaped anvil, there exist coarse grains and mixed grains in the 20Mn5 hollow steel ingot used for hydro-generator shaft. By studying the dynamic recrystallization behavior of 20Mn5 steel under single-pass and multi-pass compression, the criterion for grain refinement...

We chose a traffic intersection that were heavily polluted in Haidian District of Beijing as the representative monitoring point to collect of atmospheric particulate samples within four seasons, respectively, and analysis of the PM2.5 and PAHs levels and their contribution to haze in Beijing atmosphere....

A lot of learning resources and information occupy rural distance education platform, and farmers don't know how to find useful information in the learning platform. Personalized distance learning system can provide farmers with required learning resources. The paper analyzes classical collaborative...

We propose and demonstrate Sodium Zinc Molybdenum Tellurite glasses (Na2O-ZnO-MoO3-TeO2 or NZMT) as suitable hosts for rare earth ion Holmium (Ho3+) operating at 1.2?m and 1.37?m wavelength. The density, the refractive indices, the optical absorption have been measured. The Judd-Ofelt intensity parameters...

The results of the research of the behavior of radon (RVA - radon volumetric activity), released from the massif, are described. Radon migration and its emission from the massif depend on the porosity, permeability and fissility of the massif. A sharp change of the massif strength and a discharge of...

In this paper, a detection scheme combining Bayesian network modeling and deep neural network feature extraction is used to detect the remaining cabinets in monitoring. The iterative sampling method of RJMCMC is used to track the follow-up multi-targets, and the identification of the legacy box is realized...

This paper investigates the detection performance of densely unmanned aerial vehicle (UAV) group on the air defense radar. The keystone is that multiple UAVs frequently fly in adjacent range resolution cell and usually locate in the same beam cell that inevitably has influence on the angle resolution...