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The use of machine learning method is discussed herein to produce a corpus by domain knowledge ontology and conduct text classification according to the ontology of professional knowledge domain. Nowadays, a large number of literature materials have been accumulated in each professional field, and it...

Due to the acceleration of global climate change and urbanization, many coastal cities are facing an increasing risk of flooding due to the interaction of multiple climatic factors. Urban flooding will not only threaten the safety of the people but also lead to flood invasion into rail space. Taking...

This paper considers a two-echelon (supplier & retailer) supply chain under random market needs, where the retailer has the predominance in the supply chain, and the selling price is completely hinge on market demand. We employ an option contract to coordinate the supply chain, and discuss the impact...

In order to cultivate compound application-oriented talents, the printing major of the school implemented the “Red, Green, and Blue” education project under the background of the “Excellent Engineer Education and Training Program” of the Ministry of Education. The “red” in the “red, green and blue” education...

The new-new trade theory, which focuses on enterprise's heterogeneity, is one of the frontier theories of international trade. It shows a strong explanation of the latest international trade phenomenon. We combine the frontier theory of international trade with the realistic demand of the development...

Wide angle between -45° and +45° incidence 850nm narrow band filter is presented. In this research, an informal dielectric coating narrow band filter is designed. The relationship between the angle of incidence and the central wavelength shift quantificational are solved. The incident angle from -45°...

In recent years, with the rapid development of the information society, the demand for professional talents is also increasing year by year. Colleges and universities are an important support for the development of talents in the education system, and an important way to cultivate the majority of young...

Based on association rules and fuzzy pattern theory, this paper presents a data mining model to extract patterns using two-dimensional fuzzy pattern rules, focusing on the discretization of the time series of dependent and independent variables. The referential vector distance is established as a similarity...

The research method of studying on parameter boundary of reservoir with polymer flooding has been established, using numerical simulation method combined with dynamic economic evaluation method. Based on Sha two 1-2 units of Shengtuo second area, the numerical simulation model is built and the influence...

Following the widespread application of cloud computing, many users outsource local data to cloud server. Users encrypt their data before outsourcing makes the traditional query method failure. Aiming at the problem of slow query speed and low accuracy of ciphertext query, an improved ciphertext query...

In the process of inflation and stabilization descent for the parachute, a coupling effect is generated between the the structure deformation and changes in the flow field around the canopy, which is significant important as well as the dynamic effect of the parachute. Besides, the peak value of the...

Numerical model of post-grouting bored piles which are applied to specific engineering was built and analyzed, the result of numerical model was compared with the static test result of test piles on site, which confirmed the feasibility and rationality of the numerical model. By the numerical model,...

The structure of large ribbed ring stiffened shallow spherical shell is widely used for roof design of gasholders and oil storage tanks. The FEM of scale shell structure is established and the static performance is analyzed. The grid verification and time steps verification are performed to assure the...

In team gymnastics performances, the existing manual control method leads to poverty of synchronization and precision. Therefore, the concept of moving pixels is presented. The wireless group control system is completed including system protocol formulation, software design and hardware manufacture....

Based on the analysis of the hard roofs movement law in the a mine short wall stope, a kind of caving technology combining the deep hole blasting and the shallow hole blasting is put forward. The advantage of this technology is to set deep hole blastholes in connection drifts so that the blasting down...

Chuang Tzu explained the relationship between man and nature in a concentrated way, and put forward a unified view of man, nature, and animals, i.e., all things, indicating his attitude toward all things. The equality of the origin of all things and of the value is the basis of Chuang Tzu’s view of equality....

A two-dimensional hydrodynamic model of Sanhe branch has been developed using MIKE21 software to investigate the impact of the South to North Water Diversion Project on its hydrodynamics. Design and comparative conditions have been established to analyze the hydrodynamic changes under different pumping...

Project-based learning is one of the commonly used teaching methods for long-term engineering and design disciplines, which has far-reaching influence in international and domestic countries, and there have been many application practice cases so far. Based on the PjBL (Project-Based Learning) teaching...

Polyaspartic acid derivative (PASP-SEA-ASP) was prepared from polysuccinimide (PSI) that was thermal condensation polymer of aspartic acid (ASP), taurine (SEA) and ASP. The structure of polyaspartic acid derivative was characterized by means of FTIR. The property of scale inhibition of PASP-SEA-ASP by...

Objective: Faced with the new media network environment, WeChat public platform as the carrier of modern information, will make WeChat dock with the campus information system of sports teaching, and make students query various kinds of campus sports information and teaching information by WeChat public...

The issue of cooperation has key policy implications in the current debate about religious organizations in the participation in social work. Adopting a general inductive approach, the author reviews the affinity and conflict between religious charity and social work in China. This paper points out that...

A novel chitin deacetylase (CDA), HcCDA4, was identified from the American white moth, Hyphantria cunea. The full-length cDNA sequence of HcCDA4 was identified,and the cDNA is 1494bp in length. The HcCDA4 was shown as a 56 kDa protein in E. coli BL21 by SDS-PAGE analysis and the specific antibodies reacting...

With the rapid development of China’s economy, SMEs have played an increasingly important role in China’s economic development. However, the outbreak and spread of COVID-19 had a great impact on economic development, especially on the development of SMEs. In this context, the development problems of...

An aqueduct is an important hydraulic structure for water conveyance, whose safety and durability are directly related to the normal operation of hydraulic projects and the effective allocation of water resources. In this study, based on temperature monitoring data from monitoring points during the segmented...

It is a review of the distinct physical characteristics of left-handed materials. A new idea is proposed that the left-handed materials are applied to the design of microstrip antenna. Two microstrip antennas are designed based on the new left-handed Structure which definitely enhance the directivity...

In order to improve power quality and ensure stable operation of power system, shunt active power filter (SAPF) is widely used o filter out harmonics. This paper proposed an improved control method for SAPF. The whole improved control strategy could be divided into two parts: Ip-Iq current detection...

Through and half-through arch bridges are modern bridge types due to the development of steel as a building material, in which up to now the dead-load of the deck system and the live load are transferred to the arch rib by steel suspenders. However such suspenders are due to complex mechanical loading...

In the past 40 years of reform and opening up, China’s hotel industry has gone through tremendous changes from weakness to strength. At the beginning of reform and opening up, there were only 200 restaurants that foreign guests are permitted to stay in China. After 40 years of development, China’s hotel...

With advantages of no mechanical contact, vacuum compatibility, oil-free, and high reliability, an eddy current damper (ECD) is designed for use in space. To obtain perfect damping characteristics, a conductor as an outer copper tube and two stationary plates, and an array of axially magnetized ring-shaped...

As an important part of the power system, the running state of HV overhead transmission lines has direct influence on the security and reliability of power system. So it is important to develop an on-line monitoring system of HV overhead transmission lines. In this paper, a micro controller and wireless...

This paper aims at the measurement problem of High Intensity Focused Ultrasound (HIFU). In order to measure the sound parameters of HIFU, we study the near-field cross-spectrum method. That is to say, the complex sound pressure of two adjacent planes can be measured in the near field, besides, the sound...

The studying about the seismic performance of shallow and spherical shells with ribs and rings is very lack. So it is necessary to study its dynamic response under earthquake. In this paper, the finite element model is established by ANSYS software. The first 10 orders of natural frequency and mode shape...

Oxygen and nitrogen molecules in liquid air may segregate in gradient magnetic field, which has potential applications in medicine, industry and other fields. According to the segregation behavior of magnetic nanoparticles in gradient magnetic field, magnetic drug carrier particles can be directionally...

In the face of increasing environmental problems, nations have designed and implemented a variety of methods to stabilize the climate. Carbon capture and storage (CCS) technology is intended to mitigate global warming by capturing, transporting, and sequestrating carbon dioxide (CO2) to reduce greenhouse...

In the smart grid, users, power suppliers and Power Market Scheduling Center are the main participants. In view of the increasing demand response ability of users, an identification mechanism of punishing malicious users and unstable power providers while incenting non-malicious users is proposed, and...

Pharmaceutical engineering in Kunming University of Science and Technology was certified by the International Engineering Education Certification and re-certification in 2014 and 2017. In the certification process, we analyzed the pharmaceutical engineering teaching process from the perspective of project...

Resistive sensor is widely used in every aspect of production and life, and it has many good qualities, like wide resistance range, nonlinear resistance change and so on. Resistance sensor measurement system is an important step of design and improvement of the property of resistive sensor. A reformed...

With the tightening of energy consumption and emission regulations, automotive lightweight is more and more imperative. Herein, A-pillar upper reinforcement using 1700 MPa ultra-high strength steel (UHSS) 3D roll bending was firstly designed and applied to carbon fiber reinforced plastics (CFRP) side...

With the proposal of the “dual carbon” goal, various industries have launched research on energy conservation and carbon reduction. Realizing the resource utilization of construction waste can contribute to energy conservation and carbon reduction in the construction industry. This article takes the...

Quasi-elastic contact method can be used to study the wheel-rail contact relationship of worn tread. In this paper, wheel-rail contact relationship of standard and worn LMA tread have been calculated under the condition of rigid contact and quasi-elastic contact. By comparing with rigid contact which...

As a powerful BI tool, dashboard is currently on the decision-makers' top concern lists. Many studies have been conducted on how to develop dashboard in the hospital environment, especially in the emergency departments (ED) where the doctors need precise, real time information of their patients in order...

Research shows that with the rising demand for cultural consumption, the supply and demand on the content side of the cultural industry is increasing, and the copyright development of calligraphy and painting has become more and more hot. Finding new forms of application in historical art is more conducive...

With the development of economy and the progress of society,the physical, psychological and mental development of minors, compared with 1980s, in 1990s has been significantly faster.In recent years,Social concern for juvenile delinquency is rising,juvenile delinquency toward the age of low, the crime...

The high concentration of dust particles in the environment is one of the main causes resulting for electrical contact failure of coaxial connectors. Therefore, it is important to carry out proper methods to predict life time of coaxial connectors. In the life time investigation of coaxial connectors,...

This article contains the concept of coordinated development of new urbanization and agriculture modernization and the theory of financial development, shows the actuality of the coordinated development of Jilin Province new urbanization and agriculture modernization under the perspective of financial...

This paper studies the helical gears in the gear box of cold rolling mill in a steel, using software SolidWorks to make one pair of meshing helical gears a solid model, and import the entity model into ADAMS to creat a virtual prototype model, using IMPACT function to define the contact between gears,...

The subway door is one of the most important part of the metro vehicle system .The operation reliability of this door affects the quality of safety, economy and convenience of metro transportation. In this paper, failure modes of the door system were analyzed based on maintenance history of Guangzhou...

A new solution strategy about emergency logistics by employing uncertain case-based reasoning was provided for the management of emergency logistics. A scientific case-based reasoning rule and model reasoning algorithm were established. According to expert opinions, the membership function of each attribute...

To resolve the problem of localization errors in object tracking, which caused by the background pixels in an object model, a novel target tracking algorithm named Histogram Ration Background Weighted-based mean shift (HRBWBMS)is presented. In the proposed HRBWMS, unlike the standard mean shift, the...

The Party Central Committee and the State Council regard the construction of the free trade zone (port) as a new policy designed to further reform and open up the national economy. Its purpose is to construct an internationally competitive business environment that conforms to international conventions,...