Advances in Engineering Research

This study examines the use of the support vector regression (SVR) approach in modeling and predicting the membrane water content of Proton Exchange Membrane Fuel Cell (PEMFC) under two influence factors, including the impedance of single-PEM-chip and operating temperature. The leave-one-out cross validation...

In order to improve plug removal effect and optimize operation parameters in steam injection well of Gaosheng Oilfield, the influences of permeability, plugging degree, plug removal agent concentration and injection volume on plug removal effect through orthogonal experimental method in this paper. The...

Jute is the second most important fiber in the world, which is easy to grow on all types of soil from clay to sandy loam. The popularity of jute is attributable to its abundant and cheapness, and jute fiber is mainly used in the manufacture of coarse fabrics like bags, hessian, sacking, canvas and twines....

Traffic classification is a method for categorizing the computer network traffic into a number of traffic class based on various features observed passively from the traffic. In recent years, duo to the rapid development of the Internet, as well as the rapid increase of different Internet application,...

The article characterizes the essentials and peculiarities of digital economy and lists its basic technologies. A hybrid space, formed by means of integrating a virtual space component into a real one, serves as its basis. The article underlines that in hybrid space, an object can acquire the properties...

Detection technology research about the steel plate of high-rise buildings has practical application value in building survey. In order to obtain center positions of circular holes in steel plate, Close-range Photogrammetry with advantages of non-contact, high accuracy is employed. According to the coordinate...

Based on data from the hainan statistical yearbook between 2002 and 2012, this paper makes fuzzy cluster analysis of eighteen cities of Hainan by introducing FCM algorithm, and divides these cities into four categories. We compare and analyse the data of cities. The main conclusions are as follows: 1)The...

Dichloroacetic acid (DCAA) is one of the most common, stable and carcinogenic byproducts in water and wastewater treatment. In this study, dechlorination and decomposition of DCAA by glow discharge plasma (GDP) in a sodium sulfate solution were investigated. Intermediate products were identified and...

To verify the battery bracket fatigue life of electric bus , the finite element model of the battery bracket is built, and the equivalent stress distribution of the frame was got. Multi-body dynamics vehicle model was built in ADAMS/Car. The simulation analysis was conducted based on the road spectrum...

Objective: Analysis xiaoqinglong decoction with gypsum decoction clinical efficacy of treatment of children with pneumonia. Method; pneumonia in this study between May 2014 ~ May 2015 in our hospital treated 100 cases, according to the different treatment methods will be divided into a control group...

The scale of parking lot has a significant impact on the efficiency of the entire of the roll-on/roll-off terminal (RORO terminal). To determine the scale of parking lot, the theory of urban planning is used. However, the characteristics of traffic in a RORO terminal is different from the urban area....

Rotor unmanned aerial vehicles (UAV) usually adopt MEMS gyros, accelerometers and magnetometers to determine its navigation attitude. Because a MEMS gyro has a drawback of angle drift, its attitude data is often corrected by the data solved with accelerometers and magnetometers. This paper presents a...

There is a close relationship between industrial structure and ecological environment. Based on the data of the structure of manufacturing industry and the ecological environment during 2000-2015 in Anhui province of China, the VAR and VEC models are constructed. The cointegration test found that, there...

Skin is the most vulnerable and extensive body area in mammals. The clinical manifestation of dermatopathies may vary from minor irritation to extensive ulcers causing severe discomfort and disturbance of homeostasis. The aim of the research was to study the hematological status of dogs and cats with...

Using company generated content (FGC), this article aims to discover the influence of social media content on students’ perceptions of value, social media usage intentions, and college enrollment intentions. A total of 450 people participated in an online survey. IPMA and a variance-based structural...

In recent decades, with the level of material life improves quickly, more and more people are on fire for out-door adventure. They usually trek in desert and wasteland. However the case that compass or communication equipment is out of order happens frequently. For someone who lack direction, it is easy...

The High Performance Capillary Electrophoresis (HPCE) method was established for thr determination the paeonol content in Mingmu Dihuang pill. 40mmol/L borax solution buffer was used for the electrophoresis analysis. Measured paeonol content in Mingmu Dihuang pill was 1.698 mg/g (RSD=10.8%) (n = 4).

In this paper, the mode of action of Morin and protein has been studied through UV and fluorescence spectrum. This paper found that in the pH = 8.50 Tris-HCl buffer solution,at the presence of Zn2+, the protein can cause Morin fluorescence quenching and the quenching degree of fluorescence is in proportional...

In this paper, Au nanorods and Au@Ag nanorods were synthesized by seed –mediated growth process, and the Colloidal quantum dots CdSe/CdS/ZnS were produced by successive ion-layer absorption and reaction methods. A low-cost and practical ligand exchange of oil phase quantum dots and amino-functionalized...

This article mainly revolves the unique cultural connotation of history has the unique Miao "Miao silver" analysis of market investigation, data, research and explore the "Miao silver" whether there is a market size, market research and investigation.

This paper analyzes the importance of the indoor environment of existing public buildings based on the present situation. Through the experiment the paper puts up the objective index of typical existing public building’s indoor environment in hot summer and cold winter zone and subjective evaluation...

The adsorption of CO2 on Bi-end and MoO-end Bi2MoO6 (010) surfaces has been investigated by density functional theory (DFT) calculations. The results indicate that CO2 exhibits physical absorption on both of the two surfaces, and Bi-end surface is more slightly active than MoO-end surface. Our results...

In the process of CO2 aerated, the variation of pH value, the characteristics of Carbonate precipitation and hydroxide precipitate by Zn, the adsorption and co-precipitation characteristics with the hydrated oxides of iron and aluminum and calcite have been researched. After CO2 was aerated to the high...

The composite photocatalyst La-TiO2/H was prepared by coprecipitation method, the methylene blue (MB) was used as the target pollutant and the influence factors of degradating MB by La-TiO2/H were discussed. The results showed that the optimum conditions were that the initial mass concentration of MB...

As a new type of film, degradable film is now widely used and can be used to package a variety of fruits, vegetables, etc., the purpose of which is to achieve better preservation and delay the storage period. With the development of modern biology, more and more people pay attention to degradable film....

The Johnson-Cook models parameters of deformation resistance determine the prediction accuracy of rolling force during hot rolling. According to the influencing factors analysis of rolling force calculation error, the genetic algorithm was introduced into the self-learning method of Johnson-Cook models...

High voltage circuit breaker is the most important control and protection equipment in power system. Northern winter weather is cold, and the breaker mechanism box relies on the heating device to raise the temperature, thus ensure the normal operation of the circuit breaker. Now the heating plate of...

3D printing has become increasingly popular in the automobile industry. It contributes to rapid integrated manufacturing of complex components and lightweight components. It is widely used in producing prototypes because of the practical functionality of the prototype produced in this way, which can...

Process mineralogy of a uranium ore which had U (0.22%) and F (1.04%) was investigated by modern SEM-based mineral liberation analysis (MLA) system and traditional process mineralogy research methods. The results indicate that traces of uranium minerals are mainly pitchblende, small amount of coffinite...

The design of the mooring system is to determine the length of chain type, quality and weight of the ball, the tilt angle of the buoy and draught of the swimming area and drums as small as possible. In this paper, the optimal design scheme of mooring system is presented based on mechanical analysis....

Starch/GS composite was prepared by hot-pressing method. The effects of processing conditions including hot-pressing time and amount of mixing medium on the performance of composites were studied. Results showed that tensile strength first increased and then decreased with hot-pressing time. When hot-pressing...

Nowadays, the car has become an important means of transportation, the safety of the car has been paid more and more attention by people. The abnormal running will lead to flat tire, TPMS system for the timely monitoring of tire pressure, application of different types of TPMS system are different from...

A multi-criteria score-based method has been developed to assess General Circulation Models (GCMs) skill in the Yellow-Huai-Hai region for 1970-2005. The rank score of these criteria are applying to comprehensively assess the temporal and spatial performance of precipitation and temperature of 18 GCMs...

The structure of the shell designed for a camera was investigated. The duralumin named 2A12-T4 was chosen as the main material in order to achieve the minimum weight, and the finite element optimization method was used for the design of the shell. Introduced the structure characteristics of the shell....

Apriori algorithm is one of classical algorithms in data mining, can mine frequent item sets what the association rules needed. A classic application is shopping analysis in the supermarket, such as "beer" and "diaper". Aiming at the system of professional elective courses in the colleges and universities,...

The High Altitude Platform Station (HAPS) wireless communication channel performance of space near network is investigated. The probability density function is derived. The HAPS commutation system model is built. Then, mathematical model under different conditions is evaluated through numerical simulations...

A planar waveguide with Eu(III)-singlewalled carbon nanotubes (SWCNTs) was prepared by spinning coating. Its properties have been investigated by fluorescence spectrum, near-field scanning optical microscopy (NSOM) and m-line method. The film thickness is 1.825 m and refractive index is 1.593. The result...

New productive forces as a product of the integration and development of technological innovation and industrial transformation, are the main characteristics of the digital economy era. Data as a new factor of production, has become a key engine for promoting new quality productivity. Intelligent connected...

This paper presents performance of enhanced hybrid DC/AC microgrid system. Maximum active power possible to the utility grid can be delivered with renewable energy sources like PEMFC (proton exchange membrane fuel cells) and PV (photovoltaic systems). Mathematical modelling is used to characterize the...

Aiming at assessing the safety of an ancient landslide site, numerical stability analyses are conducted considering changes in hydraulic conditions. Through finite element simulation, two primary factors influencing slope failure, i.e., groundwater level rise and rainfall, are investigated. The results...

Aiming to help eradicate the Ebola outbreak in West Africa, the article optimizes the classical SIR model which works on predicting the spread of infectious diseases, providing insight into not only forecasting how the disease continues to develop but also what measurement should be taken. The models...

In the big data era background, and other daily production, operation and management activities of the project company are developing a greater degree of change. From the perspective of business management accounting point of view, in large data background, which affected it is significant. The views...

The function of generating paper is a core part for Computer examination system, which has huge influence on the quality of the examination system. The process of generating paper is that some examination questions are selected from paper database according to the composing evaluation function satisfying...

The pool nucleate boiling heat transfer characteristics of 10%, 20% and 30% lithium bromide solution was studied in the paper with Polyethylene Glycol Octylphenol Ether as an additive. The results showed that the additive can significantly reduce the surface tension of lithium bromide solution and different...

Based on the research prototype of six-joint robot, Googol GRB3016, the virtual prototyping model was built by utilizing the dynamics analytic software ADAMS of mechanical system. This article sets up the constraint parameters and carries out the inverse kinematics simulation of the manipulators' motion...

A numerical simulation of airflow was conducted during the application of a protective zinc coating with air knife blowing. The simulation was conducted in combination with the air knife features on the hot-dip galvanizing line of the cold rolling mill of Shougang Jingtang United Iron & Steel Co., Ltd....

In order to adapt to a variety of combat missions and complex environmental situation how the structure of the network C4ISR system automatically adjusts the system structure and promote the efficiency is crucial. To solve this problem, a optimization idea was gave and a timeliness optimization model...

An adaptive compensation observer is presented for fast diagnose of multi-effectors aircraft in the presence of control surfaces fault, which directly estimates the deflection angles of control surfaces. An augmented observer is designed for the estimation of system input, and an adaptive compensation...

Genome deletions are one of the common types of structural variations. The discovery of deletions has become an important research field in SVs detection of genome sequences. At present, the existing methods have their own limitations, and these methods are also insufficient in precision and sensitivity....

Dijkstra Algorithm is proposed by Holland computer scientist Dijkstra in 1959, and it is a typical shortest path algorithm, which can implement the shortest path planning in directed graphs. However, the traditional Dijkstra algorithm can only compute simple shortest path planning problems, but it is...

The statistics of cement consumption, bearing capacity, and settlements for pile-head and pile-toe are obtained by using the comparison of over 600 piles with or without grouting. The statistical results show that post grouting technique is most used in gravel and pebble stratum (taking up 67.8%), followed...

This paper uses the prototype loading test of resin and quartz sand footpath boardto research the various mechanical properties of it.Through the study and analysis of the experiment,which indicated that under design load and overload effect,theresin and quartz sand footpath board's top board and bottom...

Block diagram of digital part for portable IC is given. Three ways to reduce the power consumption of digital circuit are introduced. Several circuit modules of analog part for the portable IC are listed, and low power design for these modules are described in detail.

The source region of the Yangtze River,Yellow River and Lancang River is the one of the most important ecological area around the world which have significant impact on the watershed. Since the related River is the mother river of Chinese, the air quality at the source region is more important than other...

Generalized gradient approximation (GGA) plus on-site Coulomb interaction corrections (GGA+U) method within the framework of density functional theory (DFT) is used to investigate the electronic structure of SrNiO3. A series of on-site interaction U (J = 0.3 eV) values are employed in the calculations...

Objective—The purpose of this paper is to investigate the economic design of EWMA charts with variable sampling intervals (VSI) under binomial distribution to reduce the cost of control process. Methods—First, the economic model of VSI EWMA control chart under binomial distribution is developed, the...

This paper mainly for the joint control methods of the spacecraft return Capsule's temperature and humidity have been studied. According to the characteristics of temperature and humidity, it designs the object model of the temperature and humidity, and designs the model of decoupling controller on the...

Objective: To observe and analyze the clinical efficacy of using five bodies pass notes to treat knee degenerative joint disease. Methods; The study is from March 2015 to March 2016 in our hospital for treatment of knee degenerative joint disease patients, 80 cases were randomly divided into odd and...

Based on facility location and route assignment model, several multi-objective optimization models for chemical plant relocation are established. There are four main objectives: minimum risk, maximum utilization of the original transportation network, minimum cost, and minimum distance for relocation....

Distributed PV generation system is an important way currently for distributed power construction. Affected by device characteristics and installation features, it suffers a higher probability of failure, so its impact on the public grid is more than ordinary electrical equipment. In order to prevent...

Based on the parameters were provided by a caster enterprise, Pro-cast was adopted to simulate temperature field and solidus rate of continuous casting steel about the 2400 mmž400 mm cross section. On the premise of validation of simulation method, the effects of different casting speeds, degree of superheat...

In digital age details certainty is the great difficulty at hand, look out on by each one. In the hope of locked facts through transmission, features stockpile and transference employ Advance encryption standard. AES is a balanced complex code deliberate to put back DES for trade employment. It utilizes...

Fuzhou Overseas Chinese New Village was built as a detached house area, through analysis of the residential area of detached houses and the living habits of returned overseas Chinese as the basic starting point, and studies of the architectural form of a detached house of returned overseas Chinese in...

With consideration of operating speed, road conditions, economic benefits, and forecast passenger volume, an optimization method was proposed to determine the optimal length of modern tram line. Based on the principles of net-operation separation, theoptimal operating length of tram is determined according...

The process of Pichia pastoris fermentation has a long period and less offline data . The cell concentration and some other important variables can not be measured on line. The soft sensor modeling at present is mainly the artificial neural network (ANN).This paper introduces the Support Vector Machine...

The influence of feed particle size on the pyrolysis products, pyrolysis time, pyrolysis energy consumption and the percentage of dust content in volatile product was investigated in the fixed bed reactor. The results showed that with feed particle size increase, pyrolysis time and the percentage of...

First this paper expresses kinematics relationships of Plane clearance revolute air and spatial clearance spherical hinge using absolute nodal coordinate method. This paper introduces a computation model of continuous normal collision force which can consider dissipation of collision energy. In the meantime,...

The binding reaction between carminic acid CA and bovine serum albumin (BSA) was studied by fluorescence and absorption spectrometry. It is shown that there is a powerful ability in CA to quench the fluorescence intensity of BSA, and there is an overlap between the fluorescence spectrum of BSA and the...

The current evaluation mechanism of city confidence based on grid computing is not perfect, which will greatly affect the efficiency and the grid resources’ sharing. On the base of the traditional city model of grid computing, in this paper we propose a context-aware control and city trust evaluation...

On July 18, 2014, in the northeast of Hainan and Wenchang has been hitted by a super typhoon “Rammasun” caused widespread lodging and fold of landscape tree in city proper. Regarded this lodging Africa neem in Haikou city as the research object, investigated and study analysis the reasons why the Africa...

With the continuous improvement of living standard and the acceleration of urbanization process, the output of city rubbish in unceasing increase year by year and the city rubbish is growing at an annual rate of 9% ~ 10%.Relative to the method of incineration and compost treatment, sanitary landfill...

The carbon nanotube (CNT) composite material model containing interfaces was constructed in this paper. With the aid of the ABAQUS’s cohesive element and user-defined field (USDFLD) technologies, the damage beginning and evolution of the composite model under transverse load was simulated in the way...

The transmission lines of power system will produce mutual inductance in the actual operation.The mutual inductance makes parameter of transmission lines imbalance,which will lead to the operation of power system unbalanced.This paper makes a deep analysis in the reason of power system imbalance and...

Sustainable utilization of water resources in Binzhou was studied through the ecological footprint theory.All kinds of water resources were ecological surplus in 2012.The production water surplus was the largest, which was 0.1370hm2 per capita.The ecological water surplus was the smallest, which was...

The article deals with the maintenance and removal of elements of mineral nutrition by winter triticale plants on gray forest soils of the south-eastern part of the Volga-Vyatka zone, depending on the seeding rate and variety. The accumulation of elements of mineral nutrition is significantly influenced...

Reduced integral is used widely to improve the efficiency of solver especially for nonlinear analysis at the cost of additional artificial strain energy, therefore, proper approach should be used to control the hourglass effect induced by reduced integral. Numerical results show that for Abaqus/Standard...

In this paper, we use a piecewise exponential distribution model to predict the ultra short term wind power error and then estimate the parameters. The case we used is from Northern Ireland, we forecast the probability and precision of wind power on the basis of Normal distribution model, Laplace distribution...

In order to improve the reliability of power supply, power grid companies carry out the project of 10kV power distribution of live working actively, which gradually realizes the overhaul of distribution power without outage. The workers doing the operation to stop outage need to wear charged insulating...

In view of present situation of the lack of intelligent machines in library, this paper introduces a new books arranging robot and gives the design scheme of control system. The books arranging robot is mainly composed of a mechanical frame and an arranging mechanism. When the arranging mechanism stays...

This paper introduces the reasons and classification of wireless space fading, statistical characteristics of different types of channels. Through the analysis of reentry channel characteristics, we select the two pathes frequency selective slow fading channels.The spectral density function of Doppler...

In this paper, a high speed mono-hull ship is taken as the research object, and the roll decay tests are carried out under different drafts and different initial rolling angles of two ship models with or without bulbous bow, The movement process of the roll motion of a high speed mono-hull ship is studied...

The content of nickel in the lixivium of scrap copper smelting slag reaches 640mg/l while the zinc content is more than 100g/l. This high content of nickel in the solution must not only be separated from the leachate for resource recovery, but also for the subsequent zinc electrowinning which need to...

Our basic model has two parts: to find the relationship between the waiting time and the rate of the vacant taxis arrive, and to find the relationship between the passenger flow volume and the rate of the taxi arriving in the area. In an extended model, we take the Scheduling efficiency into consideration....

In this paper, a CFD-based release model is presented to study the release process of alkali metal and predict the deposition in the furnace. In the release model, potassium chloride (KCl) is chosen as a representative alkali. The results showed that: the concentration of KCl, mainly releases in devolatilization...

A cable truss support system was used in the roof of the gymnasium of YueQing sports center. It is composed by the grid structure of the monolayer surface and the cable truss support system. The prestress construction is difficult by its deformation and stress control. Based on the cable truss system...

MAP2 plays a vital role in PC12 cell differentiation, expecialy the length of the synapse and the formation of microtubules. Here, NGF (Nerve Growth Factor) and OGD (oxygen-glucose deprivation) was used to stimulate PC12 cells, and convert them into neurons to establish an ischemia in vitro model. In...

For the application situation of traditional vibratory stress relief (VSR) method, technology of orientational VSR was proposed, that is the residual stress distributions of workpiece is simulated by use of finite element method, and then determine the part of workpiece need to reduce residual stress,...

Polyphenols, flavonoids, triterpenoid and VitaminC from Clinacanthus nutans were extracted by microwave-assisted extraction (MAE) technology. The optimal extracting conditions were established as distilled water as solvent, solid-liquid ratio 1:45 (g/ml), irradiation power 160W, and every extraction...

In this paper, doubly-fed wind turbine generator and direct-drive wind turbine generator dynamic model were built in the State Grid Simulation Center and a grid model include wind power was built in laboratory, various types of grid fault tests were carried out and in-depth studied. Through research...

To research on the equivalent of perforating through layered space plates and homogeneous steel, based on the rule that the limit penetrating velocity, the penetration process of tungsten sphere into layered space plates and homogeneous steel was simulated with LS-DYNA finite element code, the numerical...

The wind turbine blade is the most complex part of wind turbine generator system (WTGS).The blade itself will produce flutter and divergence under the joint effect of vibration model and aerodynamic force. That the coupling resonance of tower and wind turbine impeller will be produced, when the natural...

In highly-developed big data age, how to cover different departments and different management systems of various ownership and how to integrate a variety of medical modes are the most important problems to solve in the current medical model needs. It can achieve the optimal combination of the medical...

In this paper, three theorems on multisource information theory are introduced, then analysis and proof of them are given. Source coding with SI and joint source coding problem can be used in wireless MAC channel, while source coding with one or two helpers can be used in wireless BC channel. Finally...

The copper(II) complex[Cu(H3ssal)(2,2'-bipy)(4,4'-bipy)(H2O)](H3ssal=5-sulfosalicylic acid) as synthesized with 5-sulfosalicylic acid by high pressure hydrothermal method. The crystal structure of the copper (II) complex contained derivative bipyridine ligands has been determined and studied by X-ray...

Efficiency of the optimal vehicle route to generate effective delivery is an important issue in the logistics world. The common methods usually practiced in delivery systems are direct shipment, indirect shipment and milk run method. The objective of this research is to analyze the optimization of delivery...

Effects of Y on microstructure of Mg-8Zn-4Al alloy was investigated by optical microscope (OM),X-ray diffractometry (XRD).The corrosion resistance behavior of Mg-8Zn-4Al- xY alloy immersed in 3.5% NaCl solution was tested by static weight loss and potentiodynamic polarization. The results showed that...

The emergence of Coronavirus Disease 2019 (COVID-19) has made many people affected by this disease, making hospital facilities limited as a place of isolation, ranging from mild symptoms to asymptomatic ones such as Happy Hypoxia (severe pneumonia) causing oxygen saturation levels, heart rate, and temperature...

This paper provided a method for determination of Copper, Iron, Manganese, Nickel, Cobalt and Arsenic in bioleaching solution by ICP-AES. Working conditions of the instrument and selection of analytical spectral lines were tested and optimized. The detection limit was 0.002, 0.003, 0.001, 0.003, 0.007,...

The bathtub water will get cooler during washing because of the heat loss, so we have to add the hot water to make up the loss and reheat the water. However, the bathtub capacity is limited, so the water will overflow when exceeding the capacity. In order to solve this problem, we developed a model of...

Using slag, steel slag and Portland cement as the raw material with a small amount of activator, the composite Portland cement of magnitude 42.5R was prepared. The steel slag fineness, the composite ratio of slag-steel slag and the types of activator on the properties of composite Portland cement were...