Advances in Engineering Research

the human lower limb model plays an important role in the simulation experiment, when it is used to do the rehabilitation training and the gait analysis. At present, the human lower limbs model is established in the experiment, that has a single function and does not have universality. In this paper,...

This study aims to reveal the level of contribution of the creative thinking learning model, by observing the factors that support student interest in learning. The number of respondents in this study were 22 students who took digital electronics courses 2 for the 2020/2021 academic year in the Electrical...

High efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE can be expressed mathematically in terms of controllable parameters Weight on Bit (WOB), Rate of Penetration (ROP), Revolutions per Minute (RPM) etc. Once the optimum WOB was determined, the correlation with Torque and Penetration...

In recent years, urban underground pipeline accidents have occurred frequently, which caused huge losses of property and personal injury. In order to ensure the safe operation of urban underground pipeline and strengthen the urban underground pipe network in all directions, in this paper, using the Java...

It's impressive to learn about how our minds work. In this work, we have discovered that when a person closes his or her eyes, the value of multiscale symbolic transfer entropy(MSTE) [1] of electroencephalogram (EEG, Lead Fp1 and Fp2) grows larger. In other words, the coupling of Lead Fp1 and Fp2 is...

Plate-cone reticulated shell is a new type of reticulated shell with good mechanical behaviour and technical economy. Wind-induced vibration response characteristics of plate-cone reticulated shell are studied, the fluctuation wind loads are simulated by using the wave superposition method in the paper....

It firstly illustrates the meaning of studying the line loss of distribution network briefly, analyzes the main reasons influencing the line loss of distribution network subsequently and finally puts forward specific loss reduction measures. Theoretical analysis demonstrates that these measures can effectively...

This paper conducts a case study focus on the difference between the quality of university education and job position demands. The study conducts a survey in some new employees recruited in 2017 by State Grid Corporation of China (SGCC) to get their professional background and their entry level comprehensive...

Food fibers are considered as nutrients, deficiency of which in a diet is pointed out in numerous studies. It is recommended to introduce both raw materials rich in cellulose, pectin, hemicelluloses, and isolated dietary fibers in the formulation of food products as sources of food fiber. On the basis...

A novel complex neural network modelwasproposed, which can be used to compute the largestreal part of eigenvalues and the corresponding eigenvector of a general real matrixin this work. Because of the smart regulatory factorof the model, the largest real part also can be extracted in the case of all...

This study investigates the enhancement of MSME (Micro, Small and Medium Enterprises) marketing effectiveness through the integration of data mining techniques within CRM (Customer Relationship Management) systems. Using a private wholesale transaction data from SMEs for the 2023–2025 period, key variables...

High temperature SAW resonators were fabricated on YCa4O(BO3)3 substrates with cutting type of X-90° and Z-90° and langasite substrates with Euler angle of (0°, 138.5°, 117°) and (0°, 138.5°, 27°). The temperature characteristics of these resonators have been studied in this paper. The results show that...

Polylactic acid (PLA) fiber is a biodegradable material, and can be used as an alternative to petrochemical-based fibers. Printed PLA nonwoven products have a wide market. The pigment inkjet printing of PLA nonwovens suffers from some defects such as poor outline sharpness of patterns, poor rub fastness,...

This paper looks at using a space-filling hierarchy view to control and visualize security settings on a mobile device. The view is optimized for readability and navigation with limited display space and provides a more fluid user-experience with a color-coded overview of security risks and buttons to...

Parachute release device can be used in airdropping rescue robots when emergencies like earthquake and nuclear leak occur. The problem of inaccuracy exists in traditional purely mechanical design and time delay mechanism. In order to solve this problem, it is urgent to develop a suitable release device.

Some procedures or functions had be added to an ESTA (Expert System Shell for Text Animation) so that the ESTA and MATLAB can communicate via some data files.On this basis,a deep learning-DBN(Deep Belief Network) and two BP(back propagation) artificial neural network based on the MATLAB programming were...

This paper researches a 3D positioning scheme for emergency rescue of trapped firefighters at the fire scene. This scheme adopts Chirp Spread Spectrum (CSS) and its particular Symmetric Double-Sided Two-Way Ranging (SDS-TWR). Combining BMP085 pressure sensor to measure altitude, it can implement 3D positioning...

set up a dynamic model of adding hot water and divide it into two elementary models. Use the heat convection minimum entropy generation to prove that put the faucet at the bottom of the bathtub is good way for saving energy.

The analysis experiment of pharmacy practical instrumental is a very important part of pharmacy practical instrumental analysis course. However, due to the limited equipment, limiting short hours and other conditions, sometimes, we cannot achieve the intended purpose. Micro-lesson is one of the most...

1. Objective: To improve the synthetic procedure of the anticancer drug poziotinib. 2. Methods: The poziotinib was synthesized in six stages starting from 7-methoxy-4-oxo-3,4-dihydroquinazolin-yl acetate (2) by chlorinated, ammonification, hydrolysis, condensation, take off Boc and amidation reaction....

Viscosity restrain the road performance of asphalt mixture with geothermal regeneration. In the design and construction of the geothermal renewable asphalt pavement, the thickness of the regenerated layer is one of the most important factors that affect the mechanical response of the material. In order...

The article is based on precision CNC lathe spindle system of the 170CP06 as the research object.The steady and transient temperature field model of the mechanical spindle is established by using the finite element analysis method.As the heat rate for the load and the convective heat transfer coefficient...

In this study, we utilize EDC/NHS as catalyst to graft Single carboxyl porphyrin molecules onto acidized chitosan for synthesis of porphyrin-functionalized chitosan composite(PFCC) and testified its structure by FT/IR. In liquid phase, we identified the formation mechanism of molecule microsphere with...

The pyrimidine compounds are a class of nitrogen-containing heterocyclic compounds. 5-(4-bromophenyl)-4, 6-dichloropyrimidine is an important intermediate in the synthesis of pyrimidines, dimethyl2-(4-bromophenyl) malonate and 5-(4-bromophenyl) pyrimidine-4,6-diol are important intermediates in compound...

This research work has focused on the examination and verification of the influence for road user that the presence of the width of a traffic securing in winter in the snowy region, by conducting several experiments using driving simulator and the real car. And then, the management widths for senses...

X company mainly produces electric locomotive and urban rail vehicles. This paper takes the locomotive department of X company as the research object. It builds a performance management system by using AHP and fuzzy evaluation method. It constructs the index system by using the idea of BSC, questionnaire...

According to Generic Fanuc 5X Mill.pst post processing document and the discussion on modification method of main parameters of X Master CAM version five axes machining with double pendulum head, this paper compares manual calculation data of holes nodes with the automatic generation program after modification,...

Natural rubber(NR)/Epoxidized Natural Rubber(ENR)/Carbon black(CB), NR/ENR/silica(SiO2), NR/ENR/ montmorillonoid(MMT) and NR/ENR/carbon nanotube(CNT) were prepared in an open two-roll laboratory mixing mill at 5060 °C. Curing property and static mechanical property of NR/ENR composites with different...

The steel structures are widely used in modern industrial factory due to its advantages such as high strength, good plasticity, good sealing property, and short construction period. However the poor fire-resistance ability is the most significant weakness of the steel structures. The steel structure...

This paper gives a method of forecasting data evolution in a long term, its practical significance is predicting data evolution direction and targeting the data that need to be updated.With the assumption of no absolutly real data in the world, we could view the data updating process as a data evolution...

Aiming at the traffic safety and comfort issues of the tunnel lighting system,In this paper, taking the case of ChiBai Tunnel in Tonghua of Jilin Province and HeDa Expressway ShiDao-YangCha tunnel,different installation methods,installation height,installation angle,and different combination of lighting...

Intensity-modulation and direct-detection (IM/DD) orthogonal frequency division multiplexing (OFDM) systems have gained great attentions from researchers. However, the interaction between the chirp of direct modulation laser and fiber dispersion causes intermixing interferences among sub-carriers. Therefore,...

During the design phase of a new electronic monitoring and control system, carrying out research on inherent testability can promote the entire system’s testability level and make it be apt to diagnose fault and maintain high reliability. To improve the current insufficient application of inherent testability...

The pulse sequence is an important part of the magnetic resonance imaging (MRI). It is directly related to the resolution of medical image obtained by MRI, and other important parameters such as the imaging speed etc. Therefore, it is very important to develop newer and more efficient pulse sequence....

In the context of dense urban development, it is challenging to assess possible risks for buildings and structures being influenced by construction work, especially in the historical part of the city where historical and cultural properties and architectural monuments are located [10-12]. The paper presents...

Welded spherical joints’ stiffness has important influences on the strength and stability bearing capacity of reticulated shells. For complication of theoretical analysis and difficulty on experiments, the stiffness of welded spherical joints which is applied widely in the large-span reticulated shells,...

In order to solve the problem of parameter identification of ship's Maneuvering Motion, a fast convergent iterative least squares algorithm is presented considering nonlinear and non-stationary characteristics of ship motion in time domain. The speed and precision of parameter identification have been...

The generation tripping sensitive point could be located by absolute kinetic energy incremental index. A method was proposed which is used to locate this point based on the estimation of unbalance power during short circuit period. The voltage was separated to two parts: one was determined by the pre-fault...

Photonic Doppler velocimetry (PDV) is a fiber-based interferometer which has been widely used in dynamic shock physics research. Although the conventional PDV systems are simple to construct, it has special requirement to the probe for getting appropriate amount of reference light. This paper proposes...

In order to study the student occupant injury risk of school bus at the driving speed exceeding 30km/h, the numerical simulation model of children occupant restraint system of school bus was built using software LS-DYNA 3D. According to the China regulation of GB24406-2012, the model was loaded with...

This paper presents the implementation of an autonomous mobile manipulator robot using Robot Operating System (ROS) as middleware. Jetson nano 2GB is utilized as the onboard computer which runs Ubuntu 18.04 OS in which ROS is installed. ROS navigation stack is setup and configured for the robot navigation....

Roof greening has a series of advantages to improve the urban ecological environment. The roof greening plants resistance to the environment research is one of the scholars research priorities. In the text, the research progress in the studies of roof greening plant resistance are analyzed. Found that...

This paper aims to determine the optimal migrating route for refugees. Firstly, we develop a Secondary Fuzzy Evaluation Model SFEM to evaluate the metrics of refugee crises and allocate the refugees of six routes. Eleven factors are chosen as the primary factors of SFEM such as the number of refugees,...

The Construction Waste (CW) treatment resources have increasingly aroused concern because the CW disposal industry involves many subjects, including the unstable supply of raw materials and sluggish sales of recycled products and other characteristics, and industrial development hasn't yet reached the...

China depends heavily on coal to meet its electricity and economic development needs for a long time and it has surpassed America and became the biggest greenhouse gases emission country in the world.The appearance of biomass energy power generation has been easing the tension of domestic energy and...

The combustion control system for small-size circulation fluidized bed boiler is a three-tier distributed control system. The system consists of host computer, master station and slave station. Master station synergizes slave station to complete control tasks, and sends process variables to host computer....

Here we discussed the SIRS model of pulse spaying pesticides with vertical transmission and single species. Assuming that the incidence rate is periodically time-dependant and the total number of forest trees also changes over time, we studied the stability of impulsive model using piecewise continuous...

This paper proposes multi-filtering method to prevent DDoS attack. Several filtering methods are applied in two firewall architecture for effective DDoS prevention. In the first firewall, R-PA filtering algorithm and strict hop counter filtering method are applied by analyzing packet paths. In the second...

Water carrying capacity assessment is to reveal the relationship between water resources, population, and economy, fully use water resources, and make economic development go hand in hand with protection of water resources, which simultaneously promote sustainable social and economic development. Based...

How to evaluate the position errors of a hole group correctly is a key point in application and dissemination of position tolerance. In a coincident tolerance zone, a new concept, rotation of the theoretical center of the hole group, is raised here, by means of it, the geometrical reference frame of...

Trains can only carry cargo from one station to other stations. To arrive at the destination, the cargo still needs to be carried by other mode of transportation. About 80% of transportation in Java is dominated by roadway transportation by far. Many business doers prefer using trucks to trains because...

An optimization method for evaluating urban rail transit vehicle base schemes based on resilience theory was proposed. A comprehensive evaluation index system was established based on four aspects: asset resilience, network resilience, user resilience, and social resilience. An optimization method for...

The Japanese banana flower and pollen were analyzed by gas chromatography-mass spectrometry (GC-MS) technique, coupled with head-space solid micro-extraction (HS-SPME). The relative percentage of compounds were measured by retention index and peak area normalization method. A total of 48 volatiles were...

Paraffin regenerative ball physical model is presented in the paper, and the process of regenerative ball phase change heat transfer is simulated by FLUENT software. This paper expounds the temperature and liquid composition distribution in the process of the regenerative ball heat storage and heat release,...

An experimental study on the adsorption removal of phosphate onto a natural and cheap dolomite mineral was carried out. The effects of calcination temperature, holding time, initial pH and dosage on phosphate adsorption were investigated, and multi-variables interaction effects were explorated. The effect...

Risk evaluation involves not only the natural characteristic of hazard, but also the socioeconomic properties of the vulnerability. Therefore risk evaluation is a complicated but important scientific problem. According to the analysis of the developed characteristic, forming condition and influent factors...

Based on LabVIEW virtual instrument technology, the research project of a testing system is put forward to solve the problems of automation and intelligence. The virtual instrument technology is used to establish the virtual instrument of high integration and high intelligence. According to the test...

The underground water level of diversion tunnel is so high, that the power station in run-time will suffer enormous external hydraulic pressure, especially the marble show time dependent failure phenomenon, and increase the risk in run- time. For this reason, the reinforced concrete lining is adopted,...

This paper proposes a time-frequency method based on complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and Winger-Ville distribution (WVD) for hydro-turbine non-stationary vibration signals analysis. Unlike the traditional EMD and EEMD, CEEMDAN can efficiently reduce the mode...

The waste crumb rubber (CR) has been utilized to improve asphalt performance but it shows poor compatibility with matrix asphalt. The approaches of desulfurization and degradation of rubber are proposed to solve the above difficulties. The modified asphalts were prepared with using crumb rubber and desulfurized...

Accompanied by global climate variability and the increase in engineering construction, the problem of landslide disaster is becoming more and more prominent because landslide disaster has a wide range of hazards, high risk, and other characteristics, which makes the application of intelligent algorithms...

The global market value of gold price decides the economic and the monetary systems of a country. In the volatile gold market, a forecasting prediction model is needed to lower the risk of financial deprivation in the event of a sudden market crisis. The proposed work is to build prediction models for...

The photovoltaic method with solar panel modules with a capacity of 100 Wp can absorb heat and convert it into electrical energy up to 100 watts/hour. It is used for the citronella oil refining process which requires 57,550 kJ of energy. By using 4 solar cell panels, within 4 h the power generated can...

According to the high speed visual inspection requirements of steel cord pieces cut by steel cord body ply cutter( produced by a processing plant ) about edge size and angle, this paper proposed a new method of edge detection based on line fitting method. The method solved the error problem of steel...

With the increasing demands of car ride comfort, automobile brake noise has become a serious concern, so reducing automobile brake noise has become the primary task of automobile manufacturers and parts suppliers. This paper briefly describes the classification of automobile brake noise, the mechanism,...

In view of the current evaluation of the assembly quality of the standard components, the artificial visual method is used to judge it. However, when people do it repeatedly and in a high-intensity, which is difficult to meet the needs of large-scale industrial production. In this paper, according to...

With the increasing capacity of wind turbines, the key parts of wind turbine bear the increasing load, and the structural reliability have become increasingly demanding, thus, Requirements of wind turbine control system control algorithm, can not only realize power optimization control, also can achieve...

Language Rhythm is an important characteristic in language. Research and analysis the Language Rhythm, those four kinds of language rhythms prompted: language nature rhythm, language grammar rhythm, language logic rhythm and language emotion rhythm. Each language rhythms reflect the language characteristic....

Based on the investigation data on Cd in Jiaozhou Bay in May, September and October in 1983, were analyzed the horizontal and seasonal distribution, vertical variation and variation range of Pb, revealed the seasonal variation process, settling process and water’s effect of Cd. Results showed that Cd...

A hot bath is becoming a necessary event of people’s life. The temperature field of water in a bathtub is coomplex and always influenced by a series of factors, such as human body, bubble bath agent,the shape of the container.

A new synthetic approach to synthesize 2,3-dimethyl -2,3-dihydrofuro [3,4-b][1,4] dioxine-5,7 -dicarboxylic acid from a common precursor diglycolic acid was reported. Starting from the commercial material diethylene glycol, diethyl oxalate and 2,3-dibromobutane, the compound was synthesized through oxidation...

The capacity and the distortion are the two important indexes in the information steganography field. The research tries adopting the famous Median Edge Detection to judge the flat area and the complex area, combining the concept of the Human Vision System to embed a fewer confidential information. A...

Using laser scanning system for preparation of abutment body of data acquisition and accuracy analysis for the reconstruction of 3D laser scanner abutment preparations and by the method of reverse engineering established the 3D digital model of the simulated abutment, using professional software to simulation...

4-Substituted isonitroacetanilines 2 were prepared by the reaction of 4-substituted anilines 3 with chloral hydrate and hydroxylamine hydrochloride. 5-Substituted indol-2,3-dione 1 were prepared by the cyclization of 2 in the presence of concentrated sulfuric acid. 5-Substituted indol-2,3-dione 1 is...

Researched on conceptual model of C2 system agility, and designed simulation experiment platform. By using Agent, the simulation resources were packaged to be cooperative, to meet needs of agility. The agile C2 System was built according to military mission, it can sense changes and evolve, which makes...

The yield of sugar beet depends not only on soil and climatic conditions, but also on the quality of the distribution of plants along the sowing series of these plants. The maximum yield is obtained with the optimal value of the average interval between plants, and all intervals should be the same with...

With the development of modern technology, the diagnosis technology for mechanical equipment has attached more attentions. This paper mainly presents the fault diagnosing process for rolling bearing by using the hybrid GA-BP algorithm, which combines genetic algorithm (GA) with error back-propagation...

Based on the investigation of phytoplankton in 14 samples of the waters among Xiaowutai Mountain in August 2016, the species composition, evenness, abundance and diversity of phytoplankton in the Xiaowutai Mountain were studied, and then evaluated the quality conditions of water. The results showed that...

At present, the safety evaluation of long-span bridges in construction is a hot research topic in the world. Considering the main factors (cantilever erection, wind load and temperature change), which influence the change of bridge member stress during the construction phase, the reliability of construction...

The Internet of Things (IoT) has revolutionized various aspects of modern life, but it also raises significant privacy concerns. Fog computing, an extension of cloud computing, has developed as a promising solution to mitigate these concerns by processing data closer to the source. This survey provides...

This paper proposes a green, lightweight, and cost-effective wireless system for structural health monitoring (SHM) of bridges. The system utilizes an edge computing model, eliminating the need for traditional cloud services by enabling sensor nodes to collaborate with a local intelligent hub for data...

Cyclic Redundancy Check (CRC) is widely used for error detection in communications. As data transfer rates increase, traditional serial CRC algorithms face performance bottlenecks, making it difficult to meet high-speed transmission needs. To address this, researchers have turned to parallel CRC computation,...

Based on grey theory, integrating Analytical Hierarchy Process and information entropy, this paper put for-ward an effectiveness evaluation method of digital Logistics equipment system of systems; the index of digi-tal Logistics equipment system of systems was established, the method of effectiveness...

The acceleration of urbanization and climate change have caused a significant change on urban runoff mechanism. Urban flood control and drainage system become very important. Drainage pipe network has significantly affections on urban water hydrology characters. We used two methods to divide subcatchments...

With the rapid development of Internet, the network traffic explosively grows with the emergence of new network business. The existing electric power communication networks still have the traditional architecture that is the closed system highly integrated with devices and software, which cannot satisfy...

Aluminum alloy A6061 and mild steel Q235 sheets were welded by resistance spot welding. The interfacial microstructure was observed and the feature and distribution of the interfacial reactant were analyzed and the effects of welding current on the nugget size and tensile shear strength of the joint...

In this paper we study the relationship between economy growth and carbon dioxide emissions in Hubei Province by building Environmental Kuznets Curve, adding some influencing factors. The result shows that there is Kuznets' inverted U-shaped curve in Hubei Province, and the inflection point did exist...

To achieve a high-resolution imaging of targets in space, it is important to reduce the effects of atmospheric turbulence in adaptive optics systems. In this paper, we propose a simple and tunable low-order robust compensator for adaptive optics system, based on the robust model matching method. We have...

An accurate integrated position and orientation determination method for vehicles is provided in this paper, which utilises inertial measurement unit (IMU) and odometer. Firstly, inertial navigation calculation is accomplished by the outputs of IMU, and the attitude and position of the vehicle can be...

One-armed planet carrier's static stress analysis and modal analysis were accomplished by the finite element method. The deformation, stress magnitude and distribution and natural frequency of the planet carrier were obtained. Under the condition of satisfying the ultimate strength and fatigue life,...

The large power transformer will operate under low temperature in Inner Mongolia, Xinjiang and Northeast provinces in China. In order to study the breakdown characteristics of transformer oil-paper insulation at low temperature, a high-voltage and low-temperature test system for transformer oil-paper...

This paper presents a systematic investigation into the research progress on leakage current suppression in N-leg inverters for dynamic wireless power transfer (DWPT) systems. With the widespread adoption of electric vehicles, DWPT technology has emerged as a critical solution due to its convenient and...

The global energy transition and carbon neutrality goals have driven the rapid development of new energy vehicles (NEVS), while traditional internal combustion engine vehicles (ICEVS) are also under pressure to improve energy efficiency. Aerodynamic design plays a vital role in improving vehicle performance...

Pier No. 8 of Maling River Bridge was constructed by synchronous construction method of pylon and girder, while pier No. 9 was constructed by conventional construction method. In this paper, synchronous construction feasibility is analyzed theoretically by construction simulation computation based on...

This study proposes a Multi-Level Screening Identification algorithm for the automatic extraction and identification of impact craters based on CCD image. Considering of the comparatively low robustness of traditional algorithms, we design analytical hierarchy process in the new algorithm. First of all,...

In this paper, the advantages and disadvantages of various kinds of clustering analysis and boundary point detection algorithms are analyzed, Combined with intrusion detection to deal with the characteristics of the data object containing noise, varied types,uneven density, and large amount of data....

This article analyses the fluid dynamic characters of bloodstream in Y-type coronary artery based on fluid dynamics. Velocity at the inlet is given for boundary condition. The speed is equally distributed. The fluid conditions of bloodstream at bifurcation and in branch vessels are analysed in the main...

Based on the available observation data from meteorological stations in Henan Province from 1981 to 2010, annual and seasonal average soil temperature of each station during the past 30 years was calculated, monthly, seasonal and annual sequence of average temperature of each layer was generated, climate...

In numerical simulation of wave equation, in a limited area to establish artificial boundary absorbing boundary conditions, the angular point on the calculation area of the processing is also cannot ignore a problem. According to CE, MTF, PML three different boundary conditions, using different angular...

The ability of a region to provide clean water relates to many aspects of the physical and economic elements. We use natural and social indicators to evaluate this feature. To measure the ability of a region to provide clean water to meet the needs of its population, water demand and supply index (WDSI)...