Advances in Engineering Research

During the drilling process with minimum quantity lubrication (MQL) for AISI 1045, the thrust force and torque influence the drilled hole’s surface quality. Therefore, it is important to select the appropriate combination levels of machining parameters in order to minimize the thrust force, torque, and...

This study utilized Geographic Information Systems (GIS) to map and analyze the distribution of major diseases within Alang-Alang Lebar, Palembang. By integrating epidemiological data and environmental factors, the research highlights significant patterns in the prevalence of hypertension, diabetes mellitus,...

Distributed Data Caching Technology plays an important role in the system architecture. It can reduce the load of database access layer and improve overall system performance. Because of the shortage in data redundancy backup and failure recovery of existing products in the distributed data cache, this...

Electromechanical integrated toroidal drive is a new-style composite drive, it integrates power and drive function. The mathematic models in coordinate system of the drive were derived based on the operating principle of the drive. In order to improve the controllability of toroidal drive, a vector control...

We have investigated the Fe and (Fe,Zr)-codoped In2O3 by first-principle calculations. Our results reveal that antiferromagnetic interaction dominates in the Fe-doped system. When Zr is introduced, the extra carriers mediate the interaction between defects and greatly enhance the ferromagnetism of the...

IDA need elastic and plastic analysis of the structure with a large number of different intensity ground motion inputs and had some disadvantages such as high cost of computation, retraction and non-monotonicity of its curve. An improved method of static elastic-plastic analysis with the consideration...

Internal ballistic equations of artillery shrapnel are established on the basis of theoretical analysis, and equivalent method used for dealing with semi-combustible cartridge case, calculation program selects the Matlab software. The simulation results are accord with the experimental data, it shows...

as the global resources is increasingly scarce and the environment is worse, people put forward the higher request for building materials and environmental protection. And bamboo is economy ,renewable and environmental protection. Apply bamboo instead of steel to concrete plate, increase the hollow rate...

The paper proposes a new encryption method named as wireless bluetooth vioce source real-time encryption method which adopts encryption algorithm of improved Logistic mapping, in order to solve wiretapped problems, improve the security of the voice transmission and ensure the integrity of the voice signal.

Due to its high efficiency, high precision and high flexibility, CNC lathe is widely used in the machinery manufacturing industry increasingly, and becomes one of CNC machine too[s that most widely used. However, to give full play to the role of CNC lathes, the key is program, that is, preparing the...

It’s an inherent requirement for the energy enterprises to effectively fulfill their corporate social responsibility in order to realize their sustainable development along with the society. Taking the listed corporations in energy industry as the research samples, this paper analyzed the influence of...

Intangible cultural heritage is an important symbol to recognition different ethnics. In order to enhance the copyright protection and authentication of intangible cultural heritage, this paper presents a novel way to process the carried image that Li brocade. Firstly, Li brocade image was decomposed...

Leakage rate is a key parameter for evaluating the mechanical seal performance. The leakage process of mechanical seal is very complicated. Influencing factors of contact mechanical seal are many, and the leakage is a variable associated with operating time rather than the steady parameter. Therefore,...

Rainfall reduces the possibility of increasing landslide instability. In order to study the stability of landslides with multi-stage sliding surface under rainfall conditions, this paper studies the physical and mechanical properties of soils with different moisture contents through direct shear tests...

With the introduction of "Internet +" series of policies, the development of energy Internet has reached a new climax. Based on the research of domestic and foreign literatures on the development of energy Internet, this paper introduces the Energy Internet benefit assessment and development model in...

In passive tracking, the nonlinearity may cause computational complication and precision degradation. To solve this problem, a novel filtering-smoothing algorithm based on Square-Root Unscented Kalman Filter (SR-UKFS) is proposed to track underwater target. In the SR-UKFS algorithm, the Square-Root Unscented...

In order to help the engineer to understand the variation inside the ground before and after the failure of the embankment, to avoid the accident, the surcharge preloading with plastic vertical drains is carried out numerically. The loading rate is accelerated artificially to analyze the variation of...

The new type of anchor cable structure with prefabricated internal anchor head has advantages such as high anchoring force and good durability, and has great application prospects in transportation engineering and civil engineering. However, there is currently a lack of systematic research on its load-bearing...

Based on the relevant design parameters of the storage power station diversion tunnel, a numerical simulation study was conducted using the VOF hydrodynamic model to investigate the arrangement of the double-layer inlet, relative pressure and head loss coefficient. By varying the ratio of the horizontal...

This study aims to analyse pre-service science teachers’ use of meta-discourse to construct students’ scientific knowledge. Data were collected from classroom observation, video recording, and review article. Results indicated ten major categories of meta-discourse (move/interactions pattern, types of...

Olivine plate-like structure LiMn0.8Fe0.2PO4/C has been successfully synthesized under mild conditions using H2O/DMSO as solvent and CTAB as surfactant. DMSO and CTAB promote the formation of plate-like structure. The prepared plate-like structure LiMn0.8Fe0.2PO4/C delivers a reversible capacity of 141mAh•g-1...

This paper analyzes the economic effect of railway piggyback transportation in China, comparing the cost be-tween railway piggyback transportation and that of highway transportation. After calculating the cost of sta-tion to station railway piggyback transportation and that of highway freight transportation...

In September 6, 2016 during the G20 summit between China and Kazakhstan signed the Silk Road Economic Zone and the construction of the road of light new economic policy docking cooperative planning. This paper cleared that both sides should steadily promote productivity and investment cooperation, strengthen...

There are many defects in traditional file service system, and this paper suggests a new system that based on the semantics of big data. It introduces some concepts, such as big data, semantic and information retrieval firstly. Secondly it introduces the key techniques. Then it analyzes and designs the...

Green building materials is one of the specific embodiment of the sustainable development strategy in the field of architecture. Because of the differences in geographical, concepts and technology, the countries’ understanding of green building materials and the application are different, and the power...

When the construction wastes were used as raw materials of Recycled concrete, the type and replacement ratio of recycled aggregates should be considered in addition to mix proportion. It is very difficult to describe the complicated nonlinear relationship between different indexes. Through analyzing...

The concrete industry needs millions of tons of aggregate, comprising natural sands and gravels, each year. In recent years there has been an increasing trend towards use of recycled aggregate to save natural resources and to produce lightweight concrete. In this investigation, an attempt was undertaken...

The hydrometallurgical process of leaching molybdenum and nickel from black shale without reagent was investigated. The extraction of Mo and Ni from molybdenum-nickel ore by oxygen pressure leaching, which exploit the characteristic of molybdenum-nickel minerals contain high concentration amorphous sulfide...

The present study was conducted to obtain a better understanding of the variation rule of compressive mechanical properties of laminated natural bridge bearings under damper and thermal aging condition. A total of 5 specimens were processed in a high-damp and temperature chamber, and one specimen was...

Phase-comparison Curve; High Linearity; No Dead-zone.

Chiral resolution of naptalam using various functionalized multi-walled carbon nanotubes (MWCNTs) mediated thin-lay chromatography was studied. D-tartaric acid was used as chiral selectors and cyclohexane-alcohol solvent mixture was used as developers. The results indicated that under the condition of...

At present, the research is not enough for the correlation of loess strength parameter and freeze-thaw cycles in domestic.The paper aims how the change of freeze-thaw cycles influence the stress characters of intact loess by consolidated drained triaxial shear test for the Shanxi loess.The results showed...

At first, this paper has summarized the theory of frequency doubling crystal, summarized suitable for uv frequency doubling of the characteristics of nonlinear optical crystal, put forward the theory basis of frequency doubling crystal KTP crystal, debug out of efficient cavity frequency doubling green...

To identify vehicle wind noise sources in aeroacoustic wind tunnel, Beamforming technique is widely used today. In this study, a production car Roewe 350 was set on the turntable at 1:1 aeroacoustic wind tunnel of Shanghai Automotive Wind Tunnel Center (SAWTC), a planar spiral microphone array with 120...

Taking landslide with accumulation layer-bedrock contact surface which located in Langao county in Shaanxi province as the research object, the basic characters of landslides are summarized by field investigating, engineering geological analyzing and mathematical statistics method, the main characters...

The increasing need for precise and multifunctional robotic systems in industries such as assembly, welding, and painting shows the importance of kinematic analysis. This paper aims to study and explain the kinematic properties of a three-degree-of-freedom (3-DOF) manipulator, which encompasses a revolving...

The water requirement for normal consistency of cement is an important technical index to measure the performance of cement. The water requirement for normal consistency of cement will directly affect the performance of the concrete prepared, in this paper, four kinds of cement with different water requirement...

Palm sap is the liquid extracted from the sap-producing tree which is obtained by tapping. Palm sap is processed into palm sap sugar to increase its selling value and quality. The process of making palm sap sugar is time consuming, therefore the innovation of palm sap sugar, which is processed into powder...

Processing household liquid waste is a significant environmental challenge, especially in urban areas with high population density. This research aims to develop and test a prototype of an innovative small-scale biofilter system for processing household liquid waste. We designed this prototype to be...

With the development of the electronic commerce and information technology, the network commercial activities have become a stream of tide. More and more people are keen on shopping online. Customer loyalty is an important factor that affect customers' future continuous interaction with enterprises....

In this paper, the influence of banded carbide structure on Rolling Contact Fatigue (RCF) of GCr15 bearing steel was investigated by using MMS-2A double-roller wear tester under dry friction at room temperature. Surface damage was characterized using SEM and OM. The results showed that with the increase...

The management innovation ideal solution has been widely used in industrial management system. In this paper, the management innovation ideal solution evaluation index system is established. However, because the article has adopted expert estimation method to confirm the index weight, the conclusion...

Control can make things develop following the planning direction, and keep the change of deviation from target in the permitted limits. Ecological control eco-control combines ecology with cybernetics, which researches on the process of information transfer, transformation, treatment for the ecosystem...

Researched the uncertain Job-Shop Scheduling, on the basis of the original triangular fuzzy number to describe fuzzy processing time, structured the fuzzy Job-Shop Scheduling model. Algorithm using the concept of "big valley" topology represent solution space, using strong swap mutations in early immune...

In this paper, physical and mathematical model are set up by using the computational fluid dynamics (CFD) technology in a graduate student dormitory. Air distribution simulation is conducted for door and window on the door during opening and closing periods on the natural ventilation conditions of v=1m/s...

Being led by implementing the scientific development concept with three basic concepts of "the development of innovative", "people-oriented" and "coordinated", giving full play to “two major advantages” of new non-government college itself and making great efforts to develop “three growth points”, the...

The industrial structure of Hebei Province is dominated by high energy consumption. In order to develop a low carbon economy, Hebei Province has the advantages of energy resources, but also the certain difficulty for energy-saving and emission reduction. This paper analyzes the actuality of energy resources...

The distribution of three typical pharmaceutical contaminants, caffeine, naproxen, and diclofenac was investigated in a typical municipal sewage treatment plant and the removal was analyzed in various treatment processes. The results show that all treatment units could affect the removal of pharmaceutical...

Component structure design is based on the finite element analysis technology, and the structure optimization is obtained by the iterative process of the boundary. However, this method is time-consuming and expensive to deal with the numerical simulation or complex engineering problems. In this paper,...

The texturization of monocrystalline silicon wafers using different K2CO3 concentrations under different times and temperatures solution has been investigated. In this paper, the pyramid density, size and uniformity on the wafer surface were discussed in different variables. We found that texturing time...

A three-dimensional thermal model has been developed to examine the thermal behavior of a lithium-ion battery (LIB) during discharge. The effect of discharge rate and forced convection on the heat dissipation performance of models under different working conditions was analyzed. Simulation results show...

As a significant stage in an Automatic Number Plate recognition (ANPR) system, License plate localization (LPL) is often computationally expensive. A novel LPL algorithm using morphological operations is proposed in the paper. The algorithm has the property of low complexity and high detection rate....

The work objective is to identify the content of acrylamide in bakery products through capillary electrophoresis. For identification, we used the "Kapel 105-M" capillary electrophoresis system with spectrophotometric detection. The study was targeted at bakery products made of top-grade wheat flour by...

Most of shape memory alloys (SMAs) are functional intermetallic. They are now practically being used for couplings, actuators, medical guide wires etc. And are hopeful candidates for smart materials, which already exist. Several papers review the latest developments in the modelling of SMAs constitutive...

For cross-sensitivity problem between strain and temperature in Fiber Bragg Grating (FBG), A FBG signal demodulation system is designed in this paper; signals are acquired and processed by Labview. The experiment of strain sensing with real-time temperature compensation has been studied based on FBG...

The thermal environment of tourist attractions, particularly in regions with hot summers and cold winters, significantly impacted visitor experiences and revenue. This study applied the microenvironment simulation software ENVI-met to analyze the thermal environment of historic streets and alleys under...

This community service will be carried out at Ngejawa Ngebali Temple, Mranggen Village, Srumbung District, Magelang Regency, Central Java Province. The service is carried out by installing new lighting at the temple site. The installation of the lighting is assisted by partners, namely the temple caretakers,...

Conventional customer service concepts that rely on communication via email, WhatsApp, and mobile phones such as call centers have limitations in scalability, especially when the number of customers continues to grow without being matched by an increase in human resources. This is also experienced by...

The COVID-19 pandemic has weakened many sectors, one of which is tourism. Almost all priority tourism locations of the government experience a significant decrease in the number of foreign and domestic visitors. This also impacts the level of welfare of the community around the tourism area. This study...

The collection of Reliability, maintenance and supportability (RMS) data is the important basis for preparing to construct and deploy equipment support system and its support resource. It has an important significance for the construction of digital troops. This paper begins with the analysis of the...

In this paper, Pan-Boolean algebra is designed in SVPWM algorithm for inverter. The switch control of the conventional SVPWM algorithm is expressed by the Pan Boolean algebra, which named the Pan-Boolean control SVPWM algorithm. The results of simulation test in MATLAB Simulink and physical model test...

The influence of wind energy on the energy cycle and atmospheric circulation in nature and the possible impact on the climate are the hotspots in recent years. The comprehensive analysis of domestic and foreign research shows that the wind farms have a certain impact on regional and global precipitation,...

A method which uses the dynamical model is raised to solve the human initial gesture of the man-rifle system. It uses the known information of part of limbs to build the truthfulness constraint, and then solve the problem with the dynamics of rigid multi-body. Using this method and combined using ADAMS...

In the vehicle side impact test, the dummy injuries were caused by the door intrusion. But because of the complexity of the door structure and the connection relation between the door and the vehicle body, the acceleration of the different position of the door was greatly diverse in the side impact....

With the gradual deepening of Changqing Oilfield horizontal wells, horizontal wells see water phenomenon is gradually increasing, more than 80% of the current water level of high water wells horizontal wells accounted for 25.5% of the total number of open wells. High water level of wells governance means...

This paper designs a vehicle intelligent anti-collision warning system based on the single chip microcomputer AT89C51, which has such characteristics as low cost, high-accuracy, micro-miniaturization, digital display and acousto-optic alarm function. The system includes forward anti-collision warning...

The crack resistance at low temperature of semi-flexible pavement was favorable, which prepared by waterborne epoxy-emulsified asphalt-cement as grouting material. While the E/A is 0.6, the maximum bending strain has reached 2662??, which is close to SMA-13. In the three-phase grouting system, asphalt...

In this paper, we solve coupled Lane-Emden equations arising in catalytic diffusion reaction by reproducing kernel Hilbert space method. First, we construct a reproducing kernel Hilbert space satisfying boundary value conditions and provide an iterative method to obtain the approximate solution. Then...

The article considers the model of the technological line operation for parts manufacturing, made in the simulation system Arena Rockwell. The relevance of the study is to reveal the "bottlenecks" and to answer a "what if" question when considering different models. Optimization parameters are the maximum...

A nonlinear analytical wire strand model under axial tensile load has been developed in this paper. The model extends Costello's elastic strand model by taking into account of the effect of contact deformation between contacting wires. Hertz contact theory is adopted to establish the relationship between...

Holding low-altitude, slow and small (LSS) target has become a difficulty and study hotspot in air defense warning. This paper firstly introduces the characteristics of the LSS-target and the practical significance and military requirements for detecting such target, and briefly describes the difficulty...

In order to improve the computational efficiency of the airfoil optimization design, a universal algorithm transformation strategy is proposed. The Multi-Island Genetic Algorithm and the Sequential Quadratic Programming are combined to take into account the global search and fast convergence characteristics....

The result of cycle quadratic function waveform Chen-Mobius transformation is applied to voice communication system. We compute the two classes of mutually orthogonal sets of functions then we took them as a new type of modulation and demodulation function, and we found itself these two functions are...

We have investigated the magnetic properties of Re atom adsorbed by single layer MoS2 by first-principle calculation. Our results reveal that the cohesive energy of the adsorbed Re is 1.7 eV and the total moment of the adsorbed system is 3.0 . The magnetic anisotropy reaches 19.0 meV and the easy axis...

Most of the current clutter simulations are based on theoretical models, radar emission wave and undulating ground, vegetation cover and other factors considered less, this could lead to lower degree of simulation. This paper presents a clutter simulation method based on digital terrain model, combined...

In order to improve seakeeping performance of the slender catamaran, Semi Submerged Bow (SSB) anti-pitching techniques is applied. Based on CFD method to forecast the longitudinal motion of the original catamaran (without SSB) in regular waves, and the calculation results and the ship model test results...

With the explosive growing of data, there are challenges to deal with the large scale complex data. Many clustering algorithms have been proposed. Such as Affinity Propagation (AP) clustering Algorithm, AP takes similarity between pairs of data point as input measures. AP is a fast and efficient clustering...

The effect of the deflector angular variation for single slotted cambered otter board on hydrodynamic performances was investigated by model wind tunnel test. Three otter board models with different deflector angle were designed for testing. The model test conducted in wind tunnel with the flow velocity...

A field study was performed in an urban eutrophic lake of Tianjin to investigate the distribution and diffusive flux of nitrogen species. Dissolved organic nitrogen (DON), accounting for about 98% of total nitrogen (TN), was the dominant component in sediment. Ammonium (NH4+ₓN) was the main component...

Multi-objective decision making method can make the evaluation process with intuitive and transparent, easily accepted by the people; rules of its evaluation process and realistic simulation calculation it will help to reduce the decision-making errors; multi-objective decision may also apply to group...

Base on Hysplit model with Backwards Trajectory showed Yinchuan was dominated by westerly continental vapor throughout the year, and also was influenced by the maritime vapor in spring and summer. Owing to the high temperature, Yinchuan was remarkably effected by local evaporation of water vapor in spring...

With the development of smart grid construction work and the innovation of the business model of the China State Grid Corp, power generation, power transmission, power transformation, power distribution, consumption and scheduling, and other business areas generate a large number of data every day. At...

In the field of precision machining thermal error is one of the main error sources in CNC machining. The thermal error compensation of CNC lathe can effectively improve the machining accuracy of machine tools. On the basis of the research of local thermal error compensation technology in NC lathe the...

This paper presents an experimental study on the static indentation tests on six types of rocks namely marble, limestone, basalt, steel gray granite, moon white granite and black galaxy granite using commercial drill bits (indenters) of spherical button type of 35mm, 38mm, 45mm and 48mm diameter to determine...

The capacity expansion project of Yahu landfill site in Pingshan New District of Shenzhen City is based on the old landfill site. It will inevitably cause the inhomogeneity of landfill foundation settlement because of the different new landfill height and the complicated geological conditions, and then...

For large wind-photovoltaic-storage hybrid system, in order to maximize the match between output of the hybrid system and the scheduling plan, it is very important to coordinate the output power of wind, photovoltaic and energy storage system. Taking the uncertain of wind, photovoltaic generation and...

Under the background of rapid development of modern science and technology, I make a theoretical and depth analysis on both physiological and psychological demands of lamp users to explore a more suitable feasible scheme through researching and analyzing the lamp which adapts human and social life best...

This paper presents geodynamics of the Southern Cis-Urals region. It focuses on seismicity induced by hydrocarbon production by summarizing the published case studies. Natural and man-made changes in bowels of the Earth are usually accompanied by tectonic movements and deformations of earth's surface,...

Transportation and tourism are two interrelated fields. From the past until now the purpose of people in traveling is growing, ranging from education, holidays, religious activities, health, business and so on. In order to facilitate, accelerate, streamline all human needs processes in such a journey...

A novel brush-less DC motor, with two drive methods based on bi-directional quasi-Z-source converter is studied in this paper. The parameters of quasi-Z-source network are respectively designed in square-wave and sine-wave drive methods. The BLDCM control system that applies to micro electric vehicle...

The Barelang63 team developed an autonomous wheeled soccer robot to participate in the Indonesian Robot Contest (KRI) in the KRSBI-Wheeled category, which independently requires object detection, motion planning, strategy, and communication capabilities. This research aims to apply the Artificial Potential...

Policies to reduce carbon emissions in the transport sector are crucial in influencing the public's choice of environmentally friendly travel modes. This paper uses road travel data in Beijing and employs agent-based modelling to analyze and predict the effects of different carbon emission reduction...

Urban traffic congestion has become a global challenge, causing economic losses, environmental pollution, and reduced quality of life. Accurate short-term traffic flow prediction is essential for optimizing traffic management, improving travel efficiency, and supporting the development of intelligent...

This article proposes a dissolved oxygen prediction model for water quality about aquaculture to solve the problems like low accuracy and poor robustness of traditional prediction methods about water quality based on principal component analysis (PCA), fuzzy neural network (FNN), and differential evolution...

With the new materials, new technology are being widely applicated in the construction, the requirements has been further, such as how to enrich and expand knowledge and improve their professional qualities. To learn to master modern technology and materials from practice is an effective way. The trend...

This text mainly introduced the TT&C&DDT down signal maximal-ratio combiner and target tracking voltage of angle error, analysis the influence of tracking by electromagnetic wave delay correction in different transmission line, given improvement viewpoint of BPSK signal tracking system by electromagnetic...

In order to study the reflection crack resistance of asphalt mixture, using Overlay tester, crack resistance property of five asphalt mixture types were analyzed based on the grey relation analysis. The paper analysis the influence of mixture types temperature and volume index (void ratio) on the anti-cracking...

In previous works, they mainly concern on optimizing transmitted antenna to maximize energy efficiency(EE). But the transmitted power optimization is also necessary for the improvement of EE. Because too large or too small transmitted power will lead to the decline of EE. This paper proposes a joint...

Diffusion of individual xenon atoms in the bulk of UO2 nanocrystals with free surface is studied using the molecular dynamics approach. Two sets of the pair potentials of interaction of the Xe atom with uranium and oxygen ions are considered. For both sets, interstitial migration is observed, as well...

Objective is to investigate the subclavian vein epinephrine rescue efficacy of the drug in patients with cardiac arrest. Methods 126 cases of cardiac arrest patients were randomly divided into the subclavian vein catheterization group and 63 cases of peripheral venous each group, and two groups were...