Advances in Engineering Research

The poly (L–lactic acid) (PLLA) micro/nano fibrous multi-porous films are fabricated by electrospinning. The effect of flow rate, spinning time and the type of solvent on the mechanical properties, pore volumes, distributions of pore size and specific areas of PLLA micro/nano fibrous multi-porous films...

With the development of the society, oil and coal resources gradually reduce, as a sustainable, renewable energy, the development of biomass energy became the inevitable trend to save resources and protect the environment. At present, Biomass energy is rapidly developing in the paper-making, power, gas...

In this paper, considering a clustered wireless sensor network, we propose a cooperative transmission scheme based on virtual multiple antennas combining with advanced channel coding (such as low density parity check codes), and give the system performance under different conditions through simulation....

The literature, logical analysis, video clips, and mathematical statistics methods are used in this paper for statistics and analysis 2012 European Cup Final stage 31 games 73 goals. The results showed that: Scoring high frequency period is the 60mins; the best area of goal is the goal area and penalty...

Reinforced concrete frames are one of most popular structures used in the world, but the research on their fire is at primary stage. In this thesis, the non-liner analysis of reinforced concrete frames at elevated temperature was analyzed by ANSYS, which included calculations and analysis of temperature...

A lot of literatures indicate that, the statistical characteristics of sea clutter at low grazing angle can be modeled as compound Gaussian process, which is the product of speckle with shorter coherent length and texture with longer coherent length, and is non-Gaussian, non-homogeneous, and non-stationary....

This paper presents a fault reconstruction scheme based on sliding mode observers for sensor and actuator faults detection and isolation for a class of uncertain nonlinear systems. A coordinate transformation is first designed for the output equation of the system followed by a first-order low-pass filter...

The failure characters and damage mechanism of Sn3.0Ag0.5Cu/Cu as-reflowed solder joints under shear thermal cycling were investigated by special shape design for the experiment sample in this paper. The results indicate that fatigue damage mainly occurred within the solder far from the interconnection...

Automotive manufacturers are facing greater demands to improve the fuel efficiency and performance of their vehicles while also reducing the overall weight. In order to meet these challenges, manufacturers are turning to alternative materials such as stainless steel and aluminium for their vehicle structures....

As advocating a low-carbon lifestyle and increasing resources crisis, the green energy-saving buildings have profound implications for our country's development and environment protection. Analyzing key techniques of energy-saving about green buildings from design link, because of design is a starting...

To solve the problems that ontology is lack of semantic information in ontology extraction, the advantages and disadvantages of methods that building ontology from database are analyzed and we find that the maximum semantic ability of ER model is ALUIN. On the base of our research, a method of extracting...

Intelligent network interface cards are widely deployed in databases, web servers, big data analytics, shared mass storage, virtualized network device, router, and firewall. This paper presents an intelligent NIC design based on Freescale T2080 processor. It is a PCI Express card and provides two SFP+...

This paper establishes the stratosphere propeller geometry model, using Pointwise software to generate grid structured grid. The flow field of the propeller at the altitude of H=20km in different wind speed and different rotate speed are simulated using the software FLUENT. The SST turbulence model and...

High-rise connected structure has been widely used in the country, at present research of its seismic behavior is less. In order to have a clear understanding for dynamic characteristics of high-rise connected structure, and improving the structure’s seismic performance. This paper adopts the universal...

The access of Ultra-High Voltage (UHV) line must have a great impact on security and stability of power grid. In this paper, to access a 1000kV UHAC line to a power grid, the stability and security of power grid are analyzed and a sensitivity method is proposed to solve the problem of threshold-crossing...

In view of the current ecological new-town construction boom in China, We analyzes the problems in the new town construction in our country by reviewing ecological history of urban development and construction practices, and explore where the main points of the ecological new town planning and design...

Logistics and supply chain management system for hospital pharmacy is an important element of HIS. But the HIS in common use still lack support for drug logistics and supply chain service functionality and documentation management is done manually. There is a information gap between hospital and drug...

Transmission pipelines carrying natural gas across long distances often work at high pressures (up to 10 MPa). The high-pressure natural gas is regulated though a throttling device, which results in much waste of pressure energy. Meanwhile, more pressure reducing stations exist the problem of no electric...

The permeability testing technology is a kind of non-destructive testing method, which based on the change of permeability, can detect the stress concentration state and the degree of fatigue damage for ferromagnetic samples. The detection sensor based on the constant current source has higher detection...

Phosphorus adsorption and desorption in natural waters have played a crucial role in the ecology of rivers and reservoirs. Hence, the purpose of this work was used to study the effect of sediment's characteristics on phosphorus adsorption and desorption. The experiment uses open channel model, instead...

In the cement enterprise energy management reporting system plays a very important role, with analysis and comparison function cement energy data. The system uses XML technology and jQuery Easy UI plugin implements which a software development may accelerate reporting production systems. This article...

Research quality management task is to discover and solve scientific and technological research and development in the process of abnormal quality situation.It establish and improve the quality supervision and inspection tracking system, strengthen research quality management efforts, discover and solve...

R- robot arm is an important part of the robot to achieve the function, low stiffness seriously affect the accuracy and efficiency of work, so the requirement of stiffness is higher. In order to improve the rigidity, this paper put the arm structure as the research object to optimize. First of all, the...

Monte Carlo method (MCM) for evaluation of measurement uncertainty is a beneficial supplement to the “Guide to the expression of uncertainty in measurement” (GUM). This paper introduces the method and the steps of measurement uncertainty evaluation by MCM based on LabVIEW, and an example is given out...

The solidtosolvent ratio, ethanol concentration, extraction temperature and extraction time were investigated for extracting total flavonoids from wolfberry. The optimal conditions were found to be extracted at the ratio of material to solvent 1:20 (g/mL), 60 for 40 min with 70% (v/v) ethanol. The D101...

In this paper a solar air preheater is installed in front of the evaporator of air source heat pump in order to solve frost and liquid strike of the evaporator operating in the cold regions. The analysis shows that the new system can increase the air side temperature of the heat pump evaporator effectively,...

A novel self-excited oscillation spraying blade has been designed and the geometric model of the conical surface and rectangular surface self-excited oscillation spraying blade have been established. The flow field distribution of novel spraying blade has been obtained by finite element analysis, simulation...

This paper analyzes the status of China’s vegetable, combined with vegetables logistics concept, characteristics and operational requirements, describe the vegetables logistics body according to the different circulation during the logistics mode. Then, discuss the existing logistics mode and analysis...

In the paper, the mathematical statistical method is adopted to build a storage life prediction model of missile equipment. Data "mutation" and confidence area appeared in the process of the model parameters determining and life predicting are discussed, and several improved decoding algorithms for inefficient...

PbTiNb2O8 is a new piezoelectric ceramic that satisfy applications of energy harvesters. Complex structure change and dipole relaxation of Pb-site doping PbTiNb2O8 piezoelectric ceramics were investigated. The synchrotron radiation study results show that with 5mol% divalent cation substitution to Pb-site...

The finite element model of the internal rolling connection process for Titanium alloy tubes was established. The distribution of the elastic strain and the contact force were analyzed to reveal the sealing mechanics of the flareless union. The residual compressive stress was generated between the tube...

In real-time data warehouses, data updates are no longer implemented in a periodic way during the idle time, but continuously ongoing. Thus the scheduling of updates and queries becomes a key issue. This paper proposes a load scheduling algorithm based on QoS parameters of query tasks. First, the paper...

Along with the development of industry 4.0 and the ongoing pandemic conditions, an interactive media is needed for learning that adapts to the times. Based on these problems, it is necessary to make an informative and attractive learning media. By using virtual reality technology that utilizes a 360-degree...

In order to reduce investment and maintenance cost, the optimal sizing of distributed energy in AC/DC hybrid stand-alone micro-grid is studied in this paper. The optimization model is built and economics, power supply reliability and environmental protection are taken into account. By means of the modified...

Use computer software for arrangements, we are prepared to use the Matlab software, also known as matrix lab, one for algorithm development, data visualization, data analysis and numerical calculation of senior technical computing language and interactive environment. According to the basic knowledge...

Taiwan has significantly varying terrains, and majority of its population centralize in the plain area, where most cities are located. Most buildings here are for both commercial and residential use, and they are expanding upward in order to make use of the space better. In such high-rise buildings,...

In this paper, the cost and benefit of different participants in critical-peak pricing project are analyzed. Cost-benefit models of power generation company, power grid company, power consumers and government departments are established. Furthermore, benefit distribution modes of different stages in...

In recent years, high-rise connected structure is a structure form that is used widely, in order to research the structure’s dynamic characteristics, and improving the structure’s seismic performance. This paper adopts large finite element software ANSYS to establish finite element model of high-rise...

To develop the rapid method for detecting of Spring viremia of carp virus (SVCV) and Cyprinid herpesvirus 2(CyHV2), 2 pairs of specific primers for duplex reverse transcriptase polymerase chain reaction (RT-PCR) were designed according to the nucleotide sequence information of CyHV2 and SVCV published...

In this work, a new type of micro-electrolysis technology using combined materials containing fly ash, iron scraps and rare earth Gd on the treatment of toxic and harmful nitrobenzene wastewater was presented. Fly ash was applied instead of activated carbon in the combined materials and single-factor...

Network security system constructs unified management and communication software under the monitor of alarm management center to make the distribution network between each subsystem and central monitoring equipment. Under the control of alarm management center and central management, achieve automation...

Measurement of liquid flash point is one of important experiments to safety engineering specialty. Its importance was analyzed by author and its available measurement methods were introduced. Then problems in teaching process of liquid flash point measurement were analyzed. Finally, some measures were...

The Chinese economy is developing rapidly, the demand for energy is getting more and more intense. With the development of coal mine, the utilization of gas is getting more and more important, and the numerous gas generating units will be connected to the power grid. Due to the characteristics that the...

For the deficiencies of the mature view of current object-oriented simulation modeling of production system, the UMLs of aspect-oriented extension , the Advanced Properties-based UML extension mechanism is completed. in this article from the aspect-oriented modeling point of view, give the cell design...

The paper studies on ecological compensation method for provincial water environmental function zone. The authors analyze the water quality of water environment function zone, identify the characteristic provincial water quality issues. The authors propose water ecological compensation mechanism for...

Detailed accident analysis of a tower failure in Henan was got in this paper. A strain test system was established, location of measuring point was determined at the same time. Long-term monitoring test of the strain value of the 3# experimental tower in the test base of transmission line in electric...

An ab-initio-based theoretical approach was presented to accurately describe phonon thermal transport. Harmonic and anharmonic interatomic force constants (IFCs) are the only inputs required for exact solution of phonon Boltzmann equation, thus the crucial elements required to calculate thermal conductivity....

A superhydrophobic ZnO/C surface with a carbon morphology derived from a wood template was fabricated through a solution immersion process, sintering, and modification by FAS. The distribution of zinc oxide on the carbon substrate surface was controlled by changing the mass fraction of Zn(NO3)2. After...

Aiming at the energy waste problems resulting from the contradiction between energy demand and supply in cement production, an energy demand prediction model based on support vector regression is built. And energy consumption of a cement enterprises in Shanxi cement production line, for example, to validate...

With its advantages of good torque and speed characteristics, high-speed dynamic response, the brushless DC motor is gradually becoming the first choice for electric vehicles. In order to effectively solve the brushless DC motor control problems caused by the non-linear characteristics, so that this...

Scientific evaluation of fashion design is the need of modern design. This research discusses the basic structure of fashion design evaluation system. From the designer's point of view, fashion design elements was divided into core design and extension design, as basic for the establishment of fashion...

The Ying Shan formation carbonate systems is identified 11 kinds of sequence boundary characteristics ,generalized 3 genetic types of sequence boundary and divided into 5 third-order sequence(Sq1-Sq5) to establish sequence stratigraphic framework in Ying Shan formation , Tarim Basin by the integrated...

Based on Weijiadi mine No.2 cross-cut West water storage repairing engineering, through on-site investigation, theoretical analysis, FLAC numerical simulation, field tests and monitoring metheds to study The Supporting Technology for Repairing the Main Roadway in Mine under Complicated Conditions, the...

The absorption rate of CO2 in piperazine (PZ) promoted potassium carbonate (K2CO3) aqueous solution were measured at normal pressure. The temperatures ranged from 323.2K to 343.2K. The mass fractions of PZ and K2CO3 respectively ranged from 0 to 0.03 and 0.2 to 0.3. The influences of the temperature...

A local-park-dominated and service-oriented urban park system would attract proximate use and benefit residents’ life quality. Park planning literature has established guidelines to measure the level of local park services. However, without empirical research evidence, it is difficult to understand how...

Energy management system (EnMS) is the key means of enterprise energy management. As one of the leading provinces in promoting the application and development of EnMS in China, Shandong Province released the first provincial EnMS Standard (DB37/T 1013-2008) in 2008 and had have 1045 enterprises operated...

Image restoration easily smears image edge in unsteady area and produces stair effect in steady area. In order to overcome these shortcomings, the paper proposes a half-quadratic energy functional regularization model (EFRM) and structured Newton iterative algorithm. Firstly, for blurred image by system...

In order to find out the influence to fault based on fully-mechanized sublevel caving of thick coal seam, the software UDEC was used to establish the numerical model. The measuring points were arrangeed on the coal seam roof every 100m to monitor the relative displacement of upper wall and footwall under...

Concrete gravity dam is a common hydraulic structure in order to have a clear understanding for concrete gravity dam in the operating process researching stress and deformation distribution of concrete gravity dam. This paper adopts the universal finite element calculating software to simulate and calculate...

With the coming of information era, cloud computing has become a strong pillar for important management, storage, etc. in modern society development. In people's development course, its application has also been in unprecedented development speed. In the process of this development, through collecting...

The integration of heterogeneous database as the important problem of heterogeneous data integration is catching more and more emphasis by the people. This paper will analyze the character of the heterogeneous database, and propose the scheme and strategy to realize integration of heterogeneous database...

One of efficient and powerful methods for stimulating real networks and tracking motion regulation of networks is to build up some network models. Investigating topological structure of networks and building up network models play an important role for understanding more microscopic and structural features...

This paper presents a comprehensive analysis of Series-Series (S-S) resonant wireless power transfer (WPT) systems through rigorous theoretical modelling, MATLAB simulations, and parametric studies. By deriving key equations for input impedance, output power, efficiency, and reflected resistance, we...

Equipment measurability is a design characteristic owned by each measuring (or testing) device of equipment that reflects its accurate value, reliable data, and the degree of convenience of measurement. Based on the concept of equipment measurability, this article puts forward the new concept of generalized...

Aim at a common situation that Control Equipment of Stage Visual-Effect has been heavy, this paper proposes Stage Visual-Effect Equipment Control System consisting of a mobile terminal based on Android. The system is a C/S structure. The system satisfies basic and major functions. An android terminal...

Memory size occupation and memory access bandwidth are capital issues for high resolution video codec design because of the large scale of data, and the high power consumption especially for wireless terminals. An adaptive and random access-obeyed reference pictures memory compression (RPMC) scheme based...

Power-tapping from ground wire is an ideal method to power on-line monitoring devices of HV overhead transmission line. And the way with bus-like power-tapping coil plays an important role for its simple engineering and excellent lightning protection performance. The key to the PTC way is whether enough...

The effectiveness of A2/O—MBR integrated process has been studied for domestic wastewater reclamation to meet the latest Beijing pollutant emission standards. Experimental results showed that high DO concentrations in the aerobic tank improved CODCr, NH3-N, and TP removals, whereas the TN removal increased...

It is very important to develop concentrator, router, hardware and software of wireless module in networking of power information collection system. In this paper, the hardware and software of module are researched and designed in electricity information collection system based on IPv6 wireless sensor...

For reducing the freezing possibility of water in jet fuel, it is necessary to add a certain amount of anti icing additive in jet fuel before refueling a plane. The jet fuel is a mixture contain of all variety of hydrocarbons and additives, so the online measurement of anti-icing additive concentration...

In this paper, we make a research on a widely-used SAT solver, Minisat, aiming to improve its performance using coarse-grained parallel method on multi-core and multi-platform. Firstly, we parallel the Minisat by mean of OpenMP and test its performance with different threads by running a test set consisting...

The microarray structured surfaces in the nature, such as shark skin and lotus leaf, have good waterproof and anti-friction performances. Besides, the microarray structures above also have good application prospects in heat exchange and biomedicine. Compared to traditional machining with problems of...

Based on four categories of indexes such as intensity indexes etc., this paper combines with actual characteristics of Chinese city, discusses about and builds a green and low-carbon city evaluation index system, and puts forward a set of simple and practical evaluation methods and standards evaluation...

Take-off skill is one of the most important part in half-pipe snowboarding which directly determined the flying height, flying time, even the quality of motion. Study on the kinematic parameters of take-off stage of some master-standard athletes for the purpose of researching on the factors influencing...

Because of the complexity of transformers construction, internal voids in the insulation seems inevitable when fabricating, which would cause partial discharge (PD). Therefore it is of great significance to monitor the PD to study in which condition the PD will make the insulation degradation and whether...

With the continuous development and application of information technology, the continuous construction of digital campus and intelligent campus project in colleges, the number of data stored in the college campus environment has increased dramatically, and a big data environment in a college campus has...

Natural silk fibers were used as the template to synthesis biomorphic Fe2O3 fibers. Silk fibers were first immersed into a Fe(NO3)3 solution and then sintered in air at high temperatures to produce the final Fe2O3 fibers. Their microstructures, phases, and synthesis process were analyzed. The results...

In transmission towers,ordinary galvanized bolts are widely used to connect angles,the connection properties determine the slippage at the nodes.The node connections are assumed to be rigid or hinge in traditional analysis and design of transmission tower,which make the status different from the real...

The absorption rates of CO2 in diethanolamine (DEA) promoted potassium carbonate (K2CO3) solution at normal pressure with temperature ranging from 343.2K to 363.2K were investigated. The mass fractions of DEA and K2CO3 respectively ranged from 0 to 0.02, and 0.35 to 0.40. The results revealed the effects...

Switching function is a powerful tool for the research and performance optimization of converter, including voltage source converter, current source converter (CSI) and controlled PWM rectifier (CR). The paper proposed converter simplified model based on switching function, theory correctness compared...

We can get conclusion from experimental effect comparison of electrostatic spray and general pressure spray that electrostatic spray can reduce droplet diameter and narrow droplet spectrum scope as well as increase droplet evenness; influenced by electrostatic absorptive effect, droplet coverage rate...

Annealed SAE 52100 steel samples with different spheroidized microstructures were austempered to produce a bainitic+martensitic duplex microstructure. The effects of the spheroidized microstructure on bainite ferrite (BF) nucleation during austempering were discussed. Results show that the proportion...

Optical current sensor has a wide range of applications. The main factors that affect the practical process of optical current transducer (OCT) are the effects of birefringence, temperature and long-term stability. Optical current transducer (OCT) with thin slice type sensing head is designed in this...

Inverted siphon is a common conveyance structure in order to have a clear understanding for stress and deformation distribution of inverted siphon structure, researching mechanical characteristics of inverted siphon structure. Precast inverted siphon has advantage of quick construction speed, easy control...

Fuzzy reasoning algorithm is the key content in fuzzy logic research, and is also the basic theory in fuzzy control. With the deepening of the research, currently a lot of fuzzy reasoning algorithms are proposed and applied in electrical appliances and many industrial productions. But its basic research...

Homogeneous aqueous suspensions of graphene have been prepared by chemical reduction of graphene oxide in the presence of poly(3-aminophenylboronic acid) (PABA) in alkale solution. The graphene sheets in thus prepared suspensions can stable several months and can be switch to aggregated state with lower...

The single point incremental Forming is a versatile process with a good future for the products of mass customization. The process eliminates the design and manufacturing of a die, which is also unique for each and every individual part. The incremental forming operation can be done using a Computer...

Marine energy generation systems have gained extensive attention in the past decade. The greatest advantage of tidal current energy over other marine energy sources is its lower dependence on the weather. Tidal stream generation system consists of an energy capturer, a shaft, a gearbox to reach a high...

The perovskite cathode material of SrFe0.9Sb0.1O3- (SFS) was prepared by glycine-nitrate process (GNP). The SFS oxides sintered at 1150,1200 and 1250 §C for 10 h were crystallized into a single phase perovskite structure, respectively. The effect of sintering temperature on crystal structure, conductivity...

Because of the non-uniform cluster-head election in the classical clustering algorithm, some nodes maybe exhaust energy prematurely so that it is not fit for large-scale wireless sensor networks(WSNs). In this paper, a distributed clustering routing algorithm based on fuzzy weight attribute degree(FWAD)...

The development of new energy auto in Yichang can give full play to the cost advantage of’ capital of hydropower’.Using the‘parallel import policy’and adopting CKD to organize production can rapidly cultivate production conditions and consumption market. Under the restriction of high standard emission...

In the process of phase estimation of digital signal, windowing will cause the problem of spectrum leakage. In view of this problem, this paper studies the solution of using appropriate window function to reduce spectrum leakage. And then analyzes the influence of different window functions and window...

The complex {[Cu(C9H8O4)(DMSO)2(H2O)2]·(DMSO)2}n (C9H8O4=2-Methyl-1,4-benzenedicarboxylic acid, DMSO = dimethyl sulfoxide)was synthesized by reaction of Cu(NO3)2·3H2O. The crystal structure of the copper(II) complex has been determined and studied by X-ray diffraction. The complex is monoclinic, space...

At present, a large number of professional diesel databases and systems could support all kinds of unified management and retrieval applications based on the diesel research data, but the actual working environment exists three problems: (1) Data scattered in different databases and not conducive to...

In the design of switching power supplies of high power factor in communication devices, high-quality PCB board design is the most significant aspect in solution to electromagnetic compatibility and reliability of the entire system[1]. The article introduces the principles and methods of PCB board design...

This paper studied the dynamic relationship between China's carbon emissions and economic growth from1960 to 2009. The results indicate that as the economy growed, carbon dioxide emissions has increased steadily since 1960.The use of environmental Kuznets curve model to simulate the relationship of per...

Quality monitoring is a critical way to ensure quality of missiles and is valid guarantee for capability of missiles. The paper studies the constructive problem of a system of systems of life cycle quality monitoring for land force strategic missile in terms of the characteristics of missile equipment....

When conformance testing of distributed network protocol, there exit controllability problem and observability problem in NP-FSM model described distributed test system. Based on the detailed research of the distributed test system, this paper proposes a single input / single output, single input / multi...

The 3/2 unidirectional glass fiber metal laminates were developed using LY12-M aluminum alloy and HS2 high strength glass fiber prepreg by the hot pressing and curing progress. The fatigue crack propagation tests of LY12-M aluminum alloy plates and unidirectional glass fiber reinforced aluminum laminates...

Audio feature extraction is a very important technique in the field of sound processing. It extremely impacts the effectiveness and correctness of sound recognition, sound verification, etc. It is a computation intensive stage in the whole sound recognition process, which is a challenging for acceleration....