Advances in Engineering Research

The paper introduces a method that make use of made in our country analog inverter & spindle motor replace imports Digital Spindle drive & spindle motor. Taking the DASEN16i CNC for example, dispose our country analog inverter & spindle motor ,increase spindle position control software ,using CNC spindle...

A free-standing TiAl based microlaminate sheet with thickness of 300 m was deposited with high-power electron beam physical vapour deposition system. Microstructure and phase analysis of as-deposited samples were studied by XRD, SEM and TEM. Toughening by structure was analyzed with tensile test. The...

In this paper, projective synchronization and parameter identification of a fractional-order chaotic system is studied. Based on the fractional-order stability theory, a universal projective synchronization controller and parameter identification rules are designed and proved by using Lyapunov stability...

The reduction of plant biodiversity occurs for various reasons. Particular attention should be paid to the territory of the reserves and reserves, especially after the war, their restoration, which takes place at a slow pace. The main condition for preserving the biodiversity of Chechnya is the optimization...

The adsorption of roxithromycin from aqueous solution onto multied-walled carbon nanotubes was studied. The gravimetric method can be adopted for calculating the adsorption isotherm and kinetic curves of roxithromycin onto the carbon nanotubes. The influential factors including the pH and humic acid...

Indonesia is the most populated Muslim country in the world. The need for halal product is important for Muslims. Halal in Arabic means "allowed" or the halal product has met the requirements laid down by the sharia law. Logistics plays a key role in protecting halal status from transporting, distributing...

Against the background of climate change, exploring the runoff evolution law of water source area and water receiving area for the water transfer project is of great significance for compiling the water dispatching plan and safeguarding water safety of the basin. In this paper, the water diversion project...

Unmanned Aerial Vehicles (UAVs) are extensively utilized in both civilian and military sectors; yet, conventional UAV control algorithms encounter efficiency limitations in complicated situations. This research proposes a BCI-based UAV control system to enhance UAV control efficiency. This design system...

The raw material of tested T250 Maraging aging steel is solid-solution steel pipe. Microstructure, performance and phase changes of T250 steel pipe after spinning and aging were studied by Optical Microscope (OM), Scanning Electron Microscope (SEM), X-ray Diffraction (XRD), Three Dimensional Atom Probe...

The low concentration of hydrochloric acid produced during the separation process of rare earth no saponification extraction is best available for recycling. The adsorption and desorption characteristics of N235 resin on dilute HCl solution were investigated by static adsorption method and dynamic adsorption...

Based on finite element limit equilibrium method, taking a core embankment dam construction period as the research object and studying on the dam slope stability. Combined with SIGMA / W and SLOP / W module, at first analyze the finite element stress with SIGMA / W module, then, the results are imported...

Fenghe river is a nature river originating from north of QinlingMountains,it is fed by glaciers and rain. On its way flowing, changes of its quality is varied, because of the Point and Non-point Source Pollution around. The aquatic biodiversity is a good indicator of the ecosystem that reflect water...

This paper prepared MoS2 water-based and oil-based nanofluids with different mass fractions by two step method, and investigated their stability, thermal conductivity, and surface tension. The thermal conductivity of MoS2 oil-based nanofluids was calculated using the classic model, and compared with...

This study introduced a multi-criteria decision making TOPSIS method to identify the compromised groundwater remediation strategies in 10 and 20 years periods. Based on the PAT technology, the model is applied to a real-world area located in northeastern China where groundwater system has been contaminated...

Machining precision of the middle-convex and varying ellipse piston is an important aspect influenced by machining technological, and influencing the functional performance of engine directly. The scientific and rational machining technological is the key to determine the manufacturing quality and cost-performance...

Molecular dynamics simulations have been performed for the study of different cationic collectors adsorption on the mica (001) surface in the vacuum. The relationship between structure of ammonium ions and the flotation performance of mica has been discussed. The S order parameter is further calculated...

In this paper, combined with the actual oilfield production, based on the well system efficiency of the pumping unit of yushulin oil field is generally low, according to the composition of the system efficiency, its main influencing factors are analyzed.From strengthening daily management work, strengthening...

The construction management of water conservancy project, with characteristics as wide range and multi-field, includes construction process management measures and completion inspection and acceptance management. There are a series of problems in the construction management of water conservancy project...

This paper is mainly design of alcohol concentration detector. Single chip microcomputer STC89C52 is employed to process data and control logic. Alcohol concentration sensor MQ-3 as its core detection device, which test the ethanol vapor concentration in the air. AD converter ADC0832 as auxiliary chips,...

This paper takes the chain type static synchronous compensator as the research object, introducing the principle of STATCOM, studying control strategy under the unbalanced grid voltage condition. It points out that the imbalance not only makes STATCOM output positive, negative sequence voltage, but also...

In this paper, an intelligent fault diagnosis method is presented to solve the problem that the accuracy of pumping unit fault diagnosis is not high. This method selects the Shape invariant moment and the Fourier descriptor to extract the characteristic parameters of the sample indicator diagram, and...

The article proposes a new method of calculating the internal force of row piles structure in excavation engineering by powerful function of solving differential equations of Maple software. this method can finally obtain the analytical function of displacement, bending moment and shear force of the...

Considering the nonlinearity and uncertainty of first tunnel hoop stress changes that caused by the construction of underwent tunnel in Suzhou metro line 4. According to the basic principles of fractal theory, Hurst index of the hoop stress time series was calculated by using R/S and V/S analysis method....

Offshore wind farm monitoring results show that: Spectrum fan running in the underwater noise level substantially are more similar to the overall strength significantly smaller with increasing frequency, in 1 ~20kHz frequency distribution of the power spectrum level 140dB/1 Pa to 65dB/1 Pa, at 120Hz...

A rapid nozzle performance analysis methodology and project for two-dimensional convergent-divergent nozzle have been developed. A one-dimensional isentropic flow model is employed to calculate the parameters of nozzle internal flow field. And the skin friction coefficient is used to correct the non-isentropic...

This paper mainly puts forward an experiental method about video data collection, coding compression and data communication based on DSP technology. It is mainly about the video coding method of the Tms320vc5402 chip software and the design and application of its peripheral hardware system.

The effects of C/N on removal rate of COD and NH3-N of a continuous running hybrid biological reactor were discussed. The results showed that the removal rates of COD and NH3-N were both more than 90% in the normal condition. The bio-film played a key role in removing the COD and NH3-N in hybrid biological...

In this paper, the mechanical properties and durability of tuff stone powder concrete were systematically studied by comparing the performance of fly ash concrete under the same test conditions. The results showed that under the same age, the mechanical, shrinkage performance, sulfate corrosion resistance...

Manual focus is general adapted in the traditional hardness tester, while the manual focus depends much on the tester, and the precision of the manual varies from tester to tester. Based on the basic principle of image processing of automatic focus, this paper presents auto-focus system applying a chip...

All the factors causing distribution system faults are analyzed for improving safety and reliability of power system. Comprehensive and scientific evaluation for distribution system faults are made by fuzzy comprehensive evaluation method and the ordering is done by their severities. This method is able...

Since a large amount of building defects arise from inside and are invisible at the beginning, the most common methodologies to assess defects are not able to predict a new defect or extension of an existed one. On this study, infrared thermal imaging technology and traditional methods of building diagnosis...

Microfluidic driving and controlling techniques are fundamental and important in microfluidic applications. Traditional reagent driving systems of microfluidic chips such as syringe pump and piezoelectric actuator have their inherent shortcomings. Syringe pumpis easy to deformation and screw motion is...

The objective of this work is to investigate experimentally the oxidation behavior of micron-sized aluminum particles with controlled thickness of alumina passive layers in oxidized environment. Samples in four different sizes were studied using differential scanning calorimetry, thermogravimetry analysis...

1553B bus with its reliability and real-time plays an important role in the field of military data bus. This paper introduces the history, characteristics and message transmission format of 1553B bus, analyzes the reliability of 1553B bus communication system, compares several typical buses, and discusses...

To achieve the goal of the sustainable development and think of the "five major development" concepts as the guiding ideology ,according to the basic principles and research methods of constructing the evaluation index system of sustainable development of resource-based cities,this paper builds up a...

A pot experiment was designed under drought stress condition to study the effect of different nitrogen levels on lipid peroxidation and protective enzyme activities in the leaves of relay strip intercropping soybean. The activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and the...

Thermoelectric coolers (TECs), operating through the Peltier effect, are a solid-state means of temperature control with no moving parts, mechanical vibrations, or refrigerant gas. In this paper perform systematic analysis of TEC technology beginning from its historical evolution and basic operational...

The plastic deformation characteristic of cone hole open-die cold extrusion was analyzed based on the concepts of hydrodynamics, the stream function of instantaneous velocity field was built. According to the determination of the equation of stream function, the kinematically admissible continuity unstable...

This paper mainly studies the optimization design method of annular slot in the cylindrical resonant cavity. Firstly, we illustrate the microwave resonant cavity perturbation method and radiation power's influence on the cavity; then using HFSS to simulate the radiation power calculation, in order to...

The best is to read these instructions and follow the outline of this text. Urbanization is the process of regional population structure adjustment caused by productivity development, scientific and technological progress and industrial structure adjustment, which is also the inevitable result of the...

As the electric energy consumption of pure electrical vehicle(EV) is huge, the driving range of EV is usually short. To solve this problem, the energy consumption experiment of EV was carried out with the electric energy consumption testing system in NEDC and Jap1015 driving cycles. Then the effect of...

Taking the Tang steel’s 1810mm hot rolling line as an example. This paper first gives an overview of this hot rolling line. And then, describes the general and special instruments used in details. Finally, combining theory with practice, this paper is concluded to help for using instruments in varied...

According to the laser cutter larch, this study has determined the reasonable process parameters such as focal length, light intensity, and optimized laser processing technology parameters to provide test methods. Firstly, for the cutting seam state analysis the precautions of software settings have...

The consistency problem of Li-ion battery pack often affects its service life during the usage. To research the equalization techniques of Li-ion batteries can reduce the consistency problem. This paper presented a non-dissipative balancing method using the pulse transformer to drive a couple of MOSFETs...

In this paper, we conduct research on the computer graphics rendering technology based on GPU and parallel computing system. Traditional geometry based on the polygon rendering technique, due to difficulty in modeling and rendering time is too long, has been more and more cannot adapt to the large-scale...

Temperature rise caused by the loss of long-time working motor has negative effects on the working performance of the motor, as well as its service life and reliability. This article, analyses the calculation method of the motor's temperature rise based on the temperature field theory. On this basis,...

Analysis of the representative statistical data showed that main causes of frequent expensive major repairs of the section pumps in the pump chamber of the main mine drainage system at the Udachny mine are failures of the impellers and other basic components due to continuous emergency operation of those...

Since the taste, aroma, colour of coffee were the main indicators of traditional coffee roast programme, the content of acrylamide was defined as final standard in this paper. The least content of acrylamide produced in coffee roast process was picked out, and the formation rule of acrylamide was also...

This paper is meant to put forward and design the third sweeping brush structure which can clean curbstones, corners of walls and etc., optimizing the cleaning structure of the domestic small-sized all-electric cleaning vehicle. The new structure can expand the cleaning area the original sweepers cover,...

Corroded area rate, weight loss rate and the macro cell corrosion of rebars in concrete subjected to concentration difference of chloride ion was investigated. In order to evaluate the corrosion mechanism of rebars, the corrosion behaviour of rebars in concrete under different chloride concentration...

This paper introduces an improvement of traditional glasses, which is combined with some sensors and motors that can detect the falling state and make auto adjustment. This product focuses more on the user’s comfort comparing with other smart glasses. The passage also demonstrates the principle of the...

You 11.00R20 tire shoulder suffered hyperthermia and periodic alternating stress will easily result in rubber aging and cracking, then the flaw generate in it. In this paper, based on ANSYS Workbench, a local sub-model of the 11.20R20 tire shoulder is established. And the stress, deformation and displacement...

Analyzing Road Service of Simpang Tiga Bhayangkara Street, Pembangunan Street, Pahlawan Street, Nunukan Sub-district, Nunukan District. Nunukan District is an area located on the border line between the Republic of Indonesia and Malaysia (Sabah and Serawak), the position of the strategy makes the region...

River runoff is highly nonlinear as affected by the combination of climate, underlying surface condition, etc. Prediction of runoff may guide engineering design, construction and operation. Statistical Learning Theory (SLT) studies the rules of machine learning with finite samples. Support Vector Machine...

In this manuscript, we conduct research on regional water resources development threshold model based on rough sets and support vector machine. Through the analysis of the coupling system of economic and social interaction between water resources and sustainable development mode for the coupling system,...

The grounding system of the ultra-high voltage substation is of great significance in safe operation of the substation. The grounding resistance value of the grounding system of the ultra-high voltage substation in the basic plan is far more than the allowable value. The paper analyzes the common resistance...

In order to be able to comprehensively consider both network communication control performance and network communication in the network control system, and to balance the network resources, improve the network performance, this paper proposes a new information distribution of CAN data identifier , and...

In a photovoltaic (PV) system that consists of multiple series-connected PV modules with bypass diode, multiple peak points could exist in the P-V curve of the PV system under partially shaded conditions (PSC), causing conventional MPPT methods sometimes unable to track the true global maximum power...

For the precise manipulation in lab-on-a-chip, the slug flow of two-phase or multi-phase forming in the micro-channel has been highly concerned to develop the new digital jetting technology. This paper focused on the water-oil two-phase slug flow to realize the digital jetting by micro water droplets....

For low permeability reservoirs, the reasonable well pattern forms mainly depends on crack groups and bearing, Wells and well spacing depends mainly on fracture and the in situ stress field caused by seepage anisotropy, and the crack, the permeability ratio of the matrix;From the geologic features of...

To cater for the demands to desktop meal-assistance robots, the paper designs a meal-assistance bluetooth-controlled robot which applies the wireless, embedded S3C6410 as the processor with ARM11 as the core, realizes voice interaction, foot-switch control and other functions through transplanting Linux-2.6.36...

The article with the help of the methods of geoinformation modeling determined the extent to which the conditions of different territories of the world are suitable for the habitat of Zabrus tenebrioides according to climatic parameters. The research is performed according to the data from 279 points...

In India, agriculture is one of the most significant sources of income. For the survival of the human race, agriculture is essential. These days, the climatic conditions are unpredictable and irregular, which in turn impacts the agriculture industry a lot more than any other industry. A change in the...

Human performance monitoring has become a key component of next-generation aviation safety systems, as the human factor remains one of the leading causes of operational incidents. Among various physiological and behavioral indicators, eye-tracking data provide a direct and non-intrusive measure of cognitive...

In recent years, agricultural prices rising, one reason is the high cost of logistics. With more and more widely the application scope of the Internet of things technology, it brings to reduce logistics cost. Based on the analysis of development situation of the Internet of things and agricultural products...

The flange and web of cold-formed thin-walled steel have small thickness and big width-thickness ratios, its mechanical properties are very different from ordinary steel members. In this paper, we performed three groups of the finite element hysteretic performance analysis of cantilevered member based...

Because of facile synthesis, carbon nanotube (CNT) fibers from chemical vapor deposition can be used for diverse applications. In this study, the electrical property of CNT fibers was investigated. The room-temperature electrical conductivity of a typical CNT fiber was measured to be 5 105 S/m. The electrical-conductivity...

To provide a amplitude, frequency programmable current signal with high precision for fault detection of 10kv rural power line this paper presented a high precision current signal source using DDS (Direct Digital Frequency Synthesis) technology. The system includes two parts which are signal generator...

In the modern period of rapid economic growth, energy shortage is serious, the new type of solar renewable green energy, has the character of economy, clean environment, the advantages of large reserves. This paper puts forward a new kind of solar collector thermoelectric power generation device. Combined...

By adding special conditions, Jean Berstel in 2012 proposed some new codes, for example: F- prefix codes, F- maximal prefix codes, F-maximal codes etc.. In this paper, we discuss the properties of F-completeness, F- denseness of those codes. At first, we present some sufficient and necessary conditions...

In order to reduce dynamic positioning errors of intelligent wheelchair efficiently, this paper discusses the application of particle filter. At first, a localization algorithm of an intelligent wheelchair by using CSS ranging is proposed. Then the principle of standard particle filter was introduced...

Mobile satellite communication system is required to maintain stable satellite communications in the vehicle movement. Because of the different road conditions, all kinds of postures information of satellite antenna has the characteristics which are complex and fast changing. This paper presents an azimuth...

In this paper, the rear drive axle house of Dong Fang Hong 40 tractor was selected as the research object, through Finite Element Analysis by ANSYS Workbench, critical sections and conditions were obtained. Based on results by FEA, multi-objective fuzzy reliability robustness design model of rear drive...

We used the 7-year-old Zizyphus jujuba 'Zhanshanmizao' as a test material, and sprayed three different concentrations of GA3(50 mg/L, 100 mg/L and 200 mg/L) to it on January 30, 2017. The dynamic changes of antioxidant substances (SOD, POD, O2- and MDA) were measured after the management in order to...

Recently, the water environment, especially the investigation on the influence mechanism of high water pressure or water seepage on the tunnel stability is not thorough. In this study, based on the theory of seepage mechanics and elastic-plastic theory, the stress state of tunnel rock mass under the...

A pot experiment was designed under drought stress condition to study the effect of different starter nitrogen fertilizer on fluorescence parameters in the leaves of relay strip intercropping soybean at branching stage. The Fo, Fv/Fm, PS, qP, NPQ and ETR were measured or calculated. The results showed...

With the development of smart grid and data analytics, deep learning has become a key tool for improving the accuracy of load forecasting in power systems. This paper provides comprehensively reviews of the research advancements in deep learning in the field of load forecasting, diagnosis and identification....

Permanent Magnet Synchronous Motor (PMSM) has been widely used in many fields for its advantages of small size, high efficiency, simple structure and low noise. In order to further improve performance of PMSM, it is necessary to do further research of its control strategy. Therefore, this paper mainly...

The operational effectiveness of the artillery declines under the condition that the artillery and the target are both in motion. The error simulation model is built on the hit model error analysis. In addition, firing lead error and hit probability of the artillery under different operational conditions...

[Objective] Recently, the interest in jatropha seeds has increased due to its high oil content. In order to study the mechanical characteristics of jatropha seeds, in this study, single factor tests, orthogonal tests were used. [Methods] Experimental factors were moisture content (MC)(7.11%~39.23%),...

With middlings of TBS underflow from Shanxi serving as sample, recleaning experimental study was conducted in order to improve the recovery of coke. Lab single-cell flotator was used as the main separation device. The ash content of sample was 17.84%, collecting agent dosage and pulp density were separately...

Found in the study of generator excitation system,by using the method of parameter identification for the model may well fit the system of input and output dynamic data, but some parameter identification result is very unstable or appear more solution, This phenomenon is known as the parameter identifiability....

Rectangular reinforced concrete members are widely used in building structures and bridge structures. The failures of these members usually occur under the combined loading actions of axial force, bending, shear and torsion. In this paper, a calculate model is established by determining the shape of...

Recently,the number of swimming pool is increasing, the swimming lover is also rising, more and more people love playing and vacation on the sandy beach. According to statistics, the private swimming pools have tens of thousands in our country, and there are many small swimming pools. Many people love...

In order to study the influences of shear span ratio and stirrup spacing on the shear behaviors of RC beam-slab composite component, static shear experiment of 9 RC beam-slab composite component and 3 beam-slab casting component were made. The results show that the development trend of flexural-shear...

In order to improve the serious haze weather, this paper puts forward a kind of PM2.5 purification detection device based on solar thermoelectric power generation. Combined with the actual operating conditions, the thermodynamic model of the temperature difference power generation device is established...

In terms of existing time series clustering method based on Euclidean distance metric, with the increasing dimension of time series, the time complexity of the algorithm will be increased too; and this method can also lead to incorrect clustering result because of it unable to recognize the abnormal...

To study the microstructure and mechanical property of cement-solidified waste resin concentrate, and research into the feasibility and effectiveness of solidification of waste resin concentrate, the researchers conducted microscopic CT scan on cement-solidified waste, reconstructed 3D model of resin...

With the development of brain and cognition technology, the research on brain science is more and more thorough. And big data related to brain science is emerging. How to acquire and share these data in time is a very urgent problem in the development of brain science. Traditional information retrieval...

This study investigates and analyzes the sensitive parameters affecting the comfort of simply-supported steel box girder pedestrian bridges. In response to human-induced vibrations, this study explores the relationship between structural bending stiffness, span length, and peak acceleration. The concept...

Based on the structural characteristic and superior performance of traveling on sand of ostrich foot, explored the special role of the ostrich plantar morphology in the process of traveling on sand. Measured the three-dimensional (3D) point cloud of ostrich plantar surface using 3D laser scanner, and...

The 3D parameterized model of sub-soiling shovel was created using Creo Parametric 2.0 in accordance with material object. According to structures, materials, loads and stress situation of sub-soiling shovel, the static analysis and modal analysis of the model are carried out by using ANSYS Workbench14.0....

The widespread of many-core processors brings new opportunities to enhance performance of PDES applications. MIC is a relative new many-core architecture compared with the widely-used GPU. In our previous paper, experiments for evaluating performance of a PDES simulator ROSS are designed and tested on...

In this paper, we conduct research on the face recognition and modeling technology and the applications on computer 3D animation design. Animation is a human creation so far one of the more perfect art form. It not only gives all inanimate objects to life, but also can make the inanimate objects become...

PL oilfield adopts commingled production with big intervals, which causes serious conflict among layers, so layer system and well pattern adjustment of later stage is required, at this time we will need to determine the scope of the reasonable well spacing. Three main pay formations of PL oilfield has...

The key technology of the semantic web are include: ontology, metadata including logic and reasoning and intelligent agents display. Ontology is a formal, explicit specification of conceptualization of the domain knowledge. This paper analyses problems of natural language understanding including: the...

In microfluidic chips, the micro droplet jetting is a key technology to control the droplet volume by micro-channel. The micro droplet in micro-channel is highly concerned on the two-phase or multi-phase slug flow, in which the two-phase streams can form two kinds of micro droplets steadily. This paper...

The level of floor management can reflect directly operating conditions of enterprise. Therefore, it’s crucial to improve floor management for development of enterprises. Workshop equipment layout design is an important part in the planning of the manufacturing system, the result have a deep influence...

According to the direction of seismic record synthesis method, currently there are two methods of seismic record synthesis. One is synthetic seismic record production along the well trajectory and the other is along the TVD direction. However, in case of a large stratigraphic dip and well deviation,...

Architecture and construction sectors are major global energy consumers,; underscoring the crucial importance of creating sustainable environments. Implementation of Internet of Things (IoT) solutions in building management systems is identified as an effective strategy for combating these environmental...