Advances in Engineering Research

This paper discussed the operation principle of reheated Rankine cycle according to the first law of thermodynamics and proposed a method to acquire the optimum reheated pressure ratio based on the highest cycle thermal efficiency. In order to verify the rationality and validity of this method, this...

The development of the adsorption refrigeration technology was relatively slow, and the COP of the adsorption refrigeration system usually indicated as 0.2 to 0.3 only in experimental reports. The lower refrigerating efficiency (COP) of the adsorption refrigeration technology has become the bottleneck...

In view of high-power LED microchannel phase-change cooling system, scientific problems, such as boiling incipience, flow pattern, heat transfer character, pressure drop and heat transfer instability are summarized. Proposing simultaneous measurement and analysis of phase-change cooling flow pattern,...

With the development of economy and the improvement of personal consumption, the demands of people for consumer goods are becoming more diversified and individualized. In recent years, the personalized shoemaking system is favored by market, and the traditional shoemaking industry needs new technologies...

The mobility and intelligence of Agent make it have a very good application value, moreover, the study and application schemes on Agent model for embedded mobile devices are rare, so the article proposes an Agent model for the demand of embedded mobile devices business applications, which is consist...

Nowadays the infectious disease has greatly affected our life. Infected persons and deaths have reached a record high . And it is still in the state of deterioration. Therefore, I try to establish a predictive model of the current virus spread .Aiming at the spread of infectious diseases, Professor Kermack...

Daqing oilfield was put into production in 1960. Excellent achievement is acquired. It has maintain the production of 5000ž104 tons / year for 27 years and 5500ž104 tons / year for 13 years. Main technologies adopted in Daqing oilfield include early-stage water flooding for pressure maintenance, separate-zone...

In order to improve the measurement accuracy of the non-contact laser coordinate measuring machine, both the error model of coordinate measuring machine and laser measurement are built based on blade measurement. The influence of the surface color and surface inclination angle of the measured object...

In order to keep the farm machines straight in the agricultural production process, the straight-line navigation system for farm machines based on mobile internet technology and inertial navigation technology was developed. Straight-line navigation system consists of sensor subsystem and the Android...

Under the Solidworks design environment, the modeling of folding chair based on the omnidirectional mobile rescue platform has been finished. This integral structure design can achieve two functions of transshipment goods and manned patrol, and the electromagnetic clutch is used to control the chair...

In order to realize the automatic measurement of total sugar content in the process of chlortetracycline (CTC) fermentation and optimize the carbohydrate supplement adjustment process, we designed the digital signal processor TMS320F2812 as the core of automatic measurement controller. The functions...

The Ni-Co/HZSM-5 methane dehydroaromatization (DHA) catalyst was prepared using wet impregnation. The catalysts were characterized by XRD, TEM, TG-DSC, FT-IR and XPS techniques before and after reaction. The results show that the maximum conversion rate of methane DHA at 580 reached 39.8%. The carbon-silicon-oxygen...

A pot experiment was conducted to study the effects of spraying exogenous melatonin (MT) on growth and physiological characteristics of Chinese cabbage seedling under 50 mmol-L-1 NaCl salt stress. The results showed that exogenous MT could promote the growth of Chinese cabbage seedlings under salt stress...

This work designs a hydroponic nutrient control system using Arduino Uno as the control center. This control system is not directly applied to hydroponic installations but is only limited for observing the performance of control system within a predetermined nutrient range. When the system starts working,...

The data of the electric power information acquisition system can generate mass data by the accumulation. It is a question to store the data as the increase of sampling frequency. Facing the data properties with large scale and larger gathering density, it will be less efficient if the past technology...

The paper applies CFD numerical simulation technology, selects the typical urban commercial block as the research object, uses PM10 which are from automobile exhausted gas as the source of pollution, simulates the spatial density distribution of the inhalable particle, verifies the accuracy based on...

The new kind of pedal pump that handling easy, safe and reliable, versatile was designed, its working principle was detailed shown. on the condition of meeting the design requirements and the actual, its' mechanism was the developed and optimized by the type synthesis of mechanisms and virtual prototype...

In this paper, According to the idea SIFT algorithm, proposed an improved algorithm ORB. Based on the multi-scale space, detecting scale space extreme points, then use the ORB descriptors to describe the feature points, generated descriptors having rotating invariability. Using Hamming distance to achieve...

In this paper, natural frequencies of axially moving beams on fixed supports are analyzed based on Timoshenko model by performing the Galerkin method and the differential quadrature method. Some numerical examples are presented to demonstrate the effects of related parameters on the frequencies, such...

In order to improve the ship shaking disturbance and wind loads on the disturbance of shipborne antenna tracking performance, position loop design of ADRC (LADRC). First, the modeling system disturbances and not as a comprehensive dynamic disturbance, to a certain type of ship azimuth servo system as...

In the article, the method of early diagnostics of nascent defects of mechanical assemblies (friction nodes, bearing pairs, gears) is considered by on-line determination of high-order statistical moments of the vibro-acoustic signal. To determine such statistical moments, a parabolic spline approximation...

Conducted a series of experiments of upsetting of steel samples. Theoretically developed and experimentally verified a fundamentally new way to control the properties of the processed metal by changing the rigidity factor of the system processed material - deforming tool.

How to handle the relationship of environment and industrial coordination development and promote sustainable social and economic development is a hot topic in present social studies. This paper constructs sustainable development evaluation index system and establishes function of sustainable coordinated...

The vibration and noise of the motor is a significant factor to evaluate the quality of the motor and the modal analysis is one of the main approaches to study the structural dynamic characteristics of motor. The motor will be in the resonance state when the excitation frequency of the harmonic electromagnetic...

During the last decade, the sensors based on chitosan had been an active research topic due to its great practical value. The sensors had showed excellent superiority, low cost, ease of fabrication, fast response time and nice repeatability. This review discusses the preparation and application of sensors...

This article designs a new model based on the BML model. The new model embeds bus elements and passenger elements, and cancels the original operation direction limit and odd/even time step setting. And this paper use control variate method to analyze influence of the number of taxis, the number and position...

According to the actual structure and working condition of a high-flow gas pressure control valve in cycle power generation project, 3-D model based on Fluid-structure Interaction (FSI) is set up. A combined calculation for turbulent flow and structure response of high-flow control valve was established,...

this paper makes deep analysis on design process and main technology of embedded GUI; it makes detailed design and realization on its key part-Graphic Device Interf. Ace, meanwhile it combines with embedded GUI development software to develop one set of embedded GUI system with strong function and beautiful...

An approach based on multi-source spectra data fusion for identification of edible oil is proposed. A qualitative model based on fusion of Raman spectra and near-infrared spectroscopy (Raman-NIR) was established and compared with conventional single-spectra model. The spectra data was pre-processed using...

Multimodal sensor fusion plays a significant role in vehicle driving, improving environmental perception accuracy and reliability. Subsequently, applications and challenges in environmental perception, positioning and navigation, attitude perception are discussed. And cutting-edge technologies such as...

In recent years, location big data (LBD) has become an important resource for intelligent transportation systems. LBD mining faces many serious questions, in order to tackle these questions, we introduce deep learning algorithm (DLA) into LBD mining. First, we explore the current research on deep neural...

The instability of natural anthocyanins was a big obstacle for its usage. In order to improve the stability of anthocyanins, molecular modification was used. In this paper, the molecular modification of blueberry anthocyanins was acylated by using aliphatic carbonyl acids (acetic acid, oxalic acid, heptane...

Cast lightweight composite insulation wall is a new, energy-saving, environmentally friendly wall materials, this article from cast lightweight composite wall construction technology, quality standards and other aspects of the construction of lightweight composite wall cast a more comprehensive exposition,...

Feature extraction technology is a major factor in determining good classification results, the traditional feature extraction method has many deficiencies, such as when a high degree of imbalance in the distribution of the categories and characteristics, it can not effectively deal with low-frequency...

To solve the real-time property trouble of the generation of the virtual Reality scene with the traditional particle systems algorithms. Firstly, the traditional particle systems technique is introduced in the paper, then an improved algorithms of particle systems which is used in the raining simulation...

Land intensive use is essentially the relationship between land input and output, which means to get the highest output with the least input. The evaluation of land intensive use level is a vital content of urban land management, which can help to provide scientific basis for the governments' decision-making...

in this study, the influence s of the particle size, adsorption time, dosage, pH value and initial concentration of the solution on the removal effect of Cu (II) in groundwater were studied by batch experiments and got the static optimal reaction conditions to determine the Static influence factors firstly.

Garuda Indonesia, as the first airline that is moving to Terminal 3 is facing a serious issue regarding on-time performance as the new terminal is not completely prepared for operations. This research is conducted using a comparative method to compare the on-time performance of Garuda Indonesia in the...

Biological soil crusts serve as a vanguard for improving the ecological environment in arid, semi-arid desertification areas. It is a good indicator of the improvement status which the local ecological environment is undertaking. This study was completed in Yanchi in Ningxia province and Dengkou in the...

The heat feedback of flame plumes is a main form of energy transfer and a significant contributor to fire growth and spread. The paper introduces the case of heptane pool fires in open spaces. A corresponding formula is proposed along with the simplified model of plume heat feedback based on the analysis...

Based on historical background of Meishan area and ancestral hall stages in Meishan, this paper investigated the Lei family's ancestral hall stage in Changtang town, Anhua county as a typical case, analyzed its architectural form and characteristics of decorative art, and discussed its value and significance...

RTK real-time dynamic relative positioning is to be able to get cm-level real-time positioning accuracy in the field of measuring methods, it USES the Real-time kinematic, RTK method, is a major milestone in GPS application, it appeared as the project lofting, topographic mapping, brought new dawn various...

In order to speed up the network “a strong and three-excellent” strategic target,power grid enterprises must increase the technology innovation and management.[2]Integrated evaluation of the technological innovation project in power grid enterprise is an important content of management of technological...

Outdated technologies prevent the civilization from its development in the context of globalization. There is a preventing factor to apply the nature-resembling technologies that is a generally accepted simulation frontal gravity continuum-isotropic paradigm of irrigation and drainage, which causes soil...

Distribution network planning is to guide the distribution network construction and management of key links, is the global energy Internet construction is an important work. In this paper, the key factors influencing the quality of distribution network are analyzed by using fish bone diagram analysis...

Freeze-thaw damage and sulfate attack are two important factors that affect the durability of panel concrete. The damage of panel concrete with w/c ratio of 0.45, 0.42, 0.38 under the single freeze-thaw cycles, single sulfate attack and the alternation test in solutions of 5.0% Na2SO4 is studied, and...

Reactive powder concrete is a kind of high performance concrete. In this paper, it is analyzed that two kinds of fibers RPC on appearance, mass loss, the compressive strength at the different high temperature and the microstructure after high temperatures.

Several mathematical models are proposed to determine the shapes of bathtub and manipulative time, which are not only related to the heat source, the maximum capacity and volume of water, but also the motions of user and ingredients of water.

Aiming at the problem of great mass and low material utilization coefficient of the working arm in a certain type of slag pot carrier, the static analysis and topology optimization analysis of the working arm were carried out. The finite element model of the working arm was established by using the pre-processing...

In the era of big data, the refined digitization of urban governance has led to the explosive growth of information data generated by various media. Effectively collecting, managing, and utilizing urban governance data is particularly important. The traditional work order generation process of innovative...

Thermal decomposition of calcium carbonate has been studied by thermogravimetric analysis (TGA). The complementary application of the isoconversional method and model-fitting method has been used for deriving the kinetic triplet (activation energy [E], frequency factor [A], and model) from the TGA experiment....

Urban lighting systems as a sign of urban civilization, is becoming more and more important role. But the planning and management of urban street lighting equipment in most parts of our country is still in a very backward state. In order to improve the backward situation, save energy, increase the efficiency...

Based on the theory of graphic reasoning, this paper carries out exploration and research on the influence of mental model manifestation pattern and cognitive load theory in interface design reasoning mechanism. It puts forward that users are affected by the mutual influence of mental model manifestation...

Since LADRC controller contains a disturbance estimation section and be able to eliminate the estimated disturbance timely, so the system of external disturbances hardly affect the output system, simulation results show that due to the real-time estimate LADRC changes and disturbances in real time compensation,...

Due to some excellent properties of YAG, it is researched and applied widely. The YAG porous ceramics are prepared via the vacuum sintering technology. The results show that a certain relationship is existed between carbon emissions time and increasing temperature speed, increasing temperature speed...

It is a measure of the dynamic performance of the machine tool design merits of the important performance indicators.This paper use Pro/E and ANSYS Workbench integrated development platform, for a certain type of grinder bed for three-dimensional modeling and modal analysis to improve dynamic performance,...

Based on vehicle collision test, a finite element dummy model (FEM dummy) was built, at the same time the parameter optimization method was proposed in the paper. To improve consistency between the dummy simulation results and results of vehicle collision test, it's necessary to scientifically adjust...

In order to study the organic fertilizer, inorganic fertilizer and its effect on the yield and quality of lettuce, a pot experiment with 5 treatments (no fertilizer, single organic fertilizer and inorganic fertilizer, organic - inorganic fertilizer, organic - inorganic fertilizer (1/2)) was conducted....

Comparing the system layer is the key and foundation of reservoir research, but The F oil reservoir belongs to the diversion plain and the leading edge of the reservoir, and it is not suitable to use thick contrast method. At the same time, well network density is very small, and the comparison of well...

Parametric analysis and of system design is the basic issue of torsion thrust measurement system. Based on parametric analysis of thruster size, weight and maximum thrust, as well as torsion damping ratio, vibration frequency and the torsional stiffness coefficient, the thesis proposes a method for parametric...

A life cycle energy, emission and economic assessment model of biological butanol-gasoline blend fuel was established based on life cycle. Then, the life cycle energy, environment, and economy of biological butanol-gasoline blend fuel used as automotive fuel were assessed. Comparing with conventional...

As PDES (Parallel and Discrete Event Simulation) applications become larger and more complex, program test for these applications becomes quite difficult. Current test approaches mainly rely on adding test code into program manually to record model data and to execute the given test cases, which are...

Urbanization is a target and result of economic development in China. Urbanization has changed the type of urban land use, and also affected the soil carbon cycle of urban ecosystem. In this paper, the land use change characteristics and soil carbon content in different land use types of urban ecosystem...

In order to study strength and evaluate its quality of cement-soil in on-site construction process, unconfined compressive tests and triaxial CU shear tests were carried out on cement-soil core samples. The analysis of effects of cement mixing content, water cement ratio and lifting speed on strength...

Text mining is a process with rich semantics of the text were analyzed to understand the content and meaning it contains. Its in-depth research is bound to greatly improve people's ability to extract information from vast amounts of textual data, there is a high commercial value. This paper introduces...

The development of cutting technology of hard and brittle material went through cylindrical cutting and internal cutting,free mortar multi-line cutting and diamond multi-line cutting.At present the main processing method of solar grade silicon rod slicing is free mortar multi-line cutting and diamond...

In order to study the influence of strengthening ring on the seismic performance of the recycled concrete filled steel tubular column and steel beam joints. In this paper, reinforcement ring, reinforcing ring extending length, thickness as the test parameters, a total of 4 recycled concrete filled square...

Aiming at the problem of occlusion and shadow in the existing video object segmentation algorithm, a new video object segmentation based on background reconstruction is proposed. In the time domain, the motion area of a single frame image is obtained, and the method of changing the template with the...

In this paper, we use the Conquering Demons Mutiny murals which is the two-dimensional large images exhibited in the 254th grotto of Dunhuang Mogao Grottoes as the experimental objects, and we have designed and implemented a self-help guide system of large images in handheld device based on image retrieval.Users...

BP Algorithm, as a well-known training method for artificial neural network, has been widely used in all the main fields of science and engineering. However, owing to the overwhelming dependency on gradient of loss function, BP-ANN still suffers several drawbacks, for example, the training process is...

An optimization scheme of the leakage current reduction (LCR) for SRAM design has been proposed in this letter. By choosing the enabling signals for the LCR circuits intentionally, it can be deduced theoretically that there exists an optimal design option for the LCR technique application under the premise...

In 1999, the U.S. government announced GPS modernization plan. CNAV message will be broadcast in the new navigation signals L2C, L5, which is differs from NAV message in channel encoding. Aim at the high error rate of the conventional channel decoding process of CNAV message, this paper proposes an improved...

TBM (Tunnel Boring Machine) has become a main technical means for the tunnel construction of rock condition. Cutter mount is an important welding structure on TBM cutter- head and it is the most dangerous positions to occur fatigue failure in the project. According to the characteristics that welding...

Because polymer blends(PB) performance is affected by its components and contents, so one of the most important research goals is the creation of an optimal design of the polymer blends formulation. However, the traditional orthogonal experiment was difficult and inefficient,due to the fact that polymer...

The Transformer framework has recently been proven to be feasible for noise analysis in low Signal-to-Noise Ratio (SNR) environments. The signal is heavily overwhelmed by noise (the lower the Signal-to-Noise Ratio, the closer or even greater the noise energy becomes compared to the signal energy), making...

Aiming at the navigation of Micro Air Vehicles (MAVs) in the natural environment, an algorithm is studied to measure the attitude of MAVs based on binocular vision. Binocular images are taken by calibrated binocular camera. The image feature points are extracted by Harris algorithm, feature points are...

Peculiarities of development of gyroscopic-type mixers were considered. The expediency of development of such mixers is presented. The literature review on this subject was performed. Author's kinematic scheme and a variant of the laboratory plant of the mixer (three-dimensional model), describing the...

In this paper, we conduct research on spread spectrum communication signal anti-jamming technique based on MIMO and prior filtering theory. In order to improve the bandwidth utilization of spread spectrum system, people will multicarrier technology is applied to medium and long-range underwater acoustic...

The main corrosion reason of water injection pipeline in YanChang oilfield is carbonate ions (or carbon dioxide gas) combined action of salts. The aim of the paper is to study the corrosion reason of the water injection pipeline in YanChang oilfield in order to develop an effective corrosion inhibitor...

There are many researches on pedestrian detection. These researches are mainly used in ADAS systems based on the front view of the pedestrian. However in some situation, for example on the bus or in the public access, passenger flow calculation needs to be done based on the top view images. This paper...

In this paper, the statistical characteristics of complex networks are introduced, and basic four kinds of models of complex networks are analyzed. Based on the theory of complex network, it is carried out about the research on the three networks such as road network, bus network and track network in...

With application of expanding the range of VLAN technology, VLAN network become an important practice in the computer network curriculum project. Paper based on Packet tracer 6.0 operating platform, designed and implemented using layer 3 switches to realize communication between VLANS. At the same time...

This article designed to make a comparison between the concrete mixed by the river sand of debris flow in Dongchuan, Yunnan province and the concrete made from the mixed sand in its working performance and mechanical property. By the numerous experiment testing results, we can find out the advantages...

The bud shaped solar heating box comprises a box body , a one-way pressure release on the box cover, reflective board, vacuum heat collector, a fixed ring, ellipsoidal hinge and other parts. This product uses vacuum collector to convert the solar energy ,which is from the high efficiency of the reflector,...

This paper proposes a cyberspace situational factors organizational methods, provide a unified framework for data organization, so that information from different sources can be organized between the host status information to be consolidated, abnormal event information, traffic information, topology...

When the asynchronous generator is running at steady state, inputting load will lead to the voltage drops, and it even cannot meet the requirements of load voltage. In order to maintain the terminal voltage stability of the asynchronous generator, SVC device adopts voltage control strategy to control...

One text sentiment classifier constructed based on the mechanism of dynamic classification of sample space has been proposed to improve the accuracy of Chinese text sentiment recognition by starting from the perspective of integrated learning. This algorithm makes full use of the identification information...

This paper illustrates the OPC technology's shortcomings of the platform portability, remote data access and security aspects of industrial automatic production. For the limitations of the OPC on these aspects, the OPC Foundation presented the improved concept of OPC UA. This paper described the OPC...

Photovoltaic (PV) systems are a promising renewable energy source, but their efficiency is affected by the angle of incidence of sunlight. It is necessary to have a control system for both light capture and optimizing PV power output. When capturing sunlight by PV, a conditioner is needed in the form...

With the advancement of the industrial intelligence process, as the core link to ensure the structural safety of major projects, the demand for precision and efficiency of weld quality inspection is increasing. Recently, the breakthrough progress of deep learning technology has promoted the strategic...

In this paper we have designed and implemented vedic multiplier using RCA, CSA and MCSA. The main component of DSP is the multiplier. The demand for high-speed multiplier circuitry is enormous. One of the most crucial factors in determining a multipliers effectiveness is speed, power and area. In order...

The current traffic signal lights often do not have flexible revise function, so it can’t reach the real-time control requirements, and leads to increasingly serious urban traffic congestion, this control software presents an effective method to solve it by researching intersection traffic signal control....

Considering that we have less knowledge of performance degradation mechanism of combined rotor, performance degradation characteristics of combined rotor were discussed, from the perspective of system performance degradation caused by structural damage. Firstly, dynamic features of combined rotor was...

Based on the theory of slip line and compared with the subject research of rigid stamping die press into semi-infinite rigid-plastic media, the crater depth formula of rigid-plastic projectile penetration concrete considering internal friction angle is established. Moreover, the relationship between...

With the better understanding of oilfield and the adjustment of the development modes, real water-flooding development effectiveness of reservoir depends on its basic geological condition, as well as the level of development technology and human factors. It is unable to judge the effect of development...

A mixed explosive contains Al powder, hexogen (RDX), paraffin, etc. It is pressed fitting into 20×20mm pillars. The pillars are heated in 55C for 57days and are measured in volume, mass and density. They are experimented in mechanical properties, sensitivities, stability. The micro-structure of the pillar...

As the hidden Markov model (HMM) has a strong ability of time sequence modeling, the continuous Gaussian mixture HMM is used to establish a model base of the rolling bearing fault. An adaptive particle swarm optimization (APSO) with extremum disturbed operator and dynamic change of inertia weights is...

A method was developed for soil erosion image segmentation based on improved K- means clustering in order to solve some problem with the traditional K-means clustering method. First, the peaks was detected in the smoothed histogram of a gray-scale image, and sort peaks in descending order; then the number...

Based on the ZigBee technology, a hand-held portable intelligent home controlled terminal is de-signed on the basis of STC12C5A60S2 MCU, and make a detailed hardware design with floor control module. Main ZigBee (coordinator) module is connected with the handheld terminal and salved ZigBee (rounter)...

This paper studied the effects of different proportions of inorganic fertilizer and organic fertilizer on yield and quality of amaranth by means of pot experiments. The result shows that when the ratio of organic fertilizer and inorganic fertilizer is 1:3, the most beneficial to improve the production...