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This paper uses questionnaires, interviews and statistical analysis methods to investigate the learning situation and influencing factors of 314 college students with poor academic performance in 10 colleges and universities in Xi'an, trying to find the subjective and objective reasons for the poor academic...

This paper presents a control strategy of torque distribution for electric vehicles with axles separately driven. With two motors driving the front and rear axle separately, the torque distribution between axles can be easily achieved. To obtain good traction performance and stability of the electric...

To study the influence of the air supply-return methods and air supply temperature on the temperature uniformity, several scaled experiments were carried. By comparing of the ceiling hole-board ventilation and diffuser air supply, it is shown that the air supply method of ceiling hole-board with air-in...

With the continuous development and extensive application of ontology research, the temporal information needs to be processed, but such ontology description logic has good ability of expression, algorithmically undecidable, simple and shortcomings of inability to describe some concepts in the reality....

It is important to analyze the soundness of the Web services composition. And the paper put forward a new method to determine the soundness. After modeling Web services area and Web surrounding area by the open Petri net, an efficient determination algorithm was offered to determine the soundness. At...

This paper proposes the concept of Sub band Fractional Fourier Transform (SB-FRFT), and extends to the 2-D sub band fractional Fourier transform. By combing the low-frequency sub band image after SB-FRFT with the traditional Sobel operator, edges of an image could be extracted more precisely. Experiments...

The cognitive users can use the spectrum holes which are vacant at some time or some frequency. Once the authorized users need to use the spectrum again, the cognitive users should stop using it to avoid interfering primary users. In this paper, a method based on active learning (AL) and AdaBoost machine...

This paper analyzes the concept of perceived value, and designs a scale of perceived value for brand digital cameras. Researchers used scale to measure importance degree of the four aspects of the perceived value of digital cameras with a certain brand, that is functional value, emotional value, economic...

COVID-19 is an infectious disease caused by virus SARS-CoV-2 virus. Early classification of COVID-19 is essential for disease cure and control. Transcription-polymerase chain reaction (RT-PCR) is used widely for the detection of COVID-19. However, its high cost, time-consuming and low sensitivity will...

A pulse detection system based on Arduino and photoelectric volumetric sensor is designed in this paper.It can detect the pulse quickly and display it in real-time with the Bluetooth.The system has the advantages of high sensitivity, good performance, low power consumption, low cost and high performance...

In recent years, more and more attention has been paid to single image super-resolution reconstruction (SISR) by using deep learning networks. These networks have achieved good reconstruction results, but how to make better use of the feature information in the image, how to improve the network convergence...

The acceleration and deceleration section of the symmetric S-type curve are completely symmetrical, which can not meet the different requirements of the actual process and mechanical structure to the acceleration and deceleration section of the motor.Therefore, the asymmetric S-type curve is used to...

In this paper, a new algorithm being put forward can handle multiple targets identification and location respectively in reference image, with an ability of resistance to rotation, being able to perform angle estimation, and subpixel accuracy location. This paper uses optimized edge phase correlation...

Food nutriology is an important professional basic course for cultivating application-oriented talents of food science and engineering, which is highly social, applicable and scientific. It will develop more subdisciplines with the development and intersection of subjects. As a branch of nutriology,...

In this paper, the remote monitoring system based on GSM is studied, using AT89S52 microcontroller as the central processing unit, wireless communication using GSM short message. The utility model can realize the function of indoor temperature acquisition, remote lighting control, burglar alarm detector....

The traditional way of manual cleaning stairs, not environmental protection, cleaning efficiency and low, cleaning workers time and labor, in order to solve this problem, the design of a low power MSP430 series single chip staircase. The cleaning machine realizes the combination of the triangular roller...

A new compressive fusion algorithm based on non-uniform sampling is proposed. Although conventional block-based compressed sensing (BCS) represents a low computational cost, it suffers from low reconstruction quality since it is not well accounting for global image features. Employing the structured...

In the vehicle energy management and battery management system, the parameter monitoring system of the battery is the important basis to ensure its operation. The new observation system for state of battery is designed according to the principle of storage battery and its charge and discharge characteristics....

Key management system deals with the key question for the entire process of key from produce to final destruction ,including system initialization, key generation, storage, distribution, renovation, destruction and more. The paper conducts research for public transportation IC card certification and...

Cloud computing is the latest trend in IT technical development, the importance of cloud databases has been widely acknowledged. There are numerous data in the cloud database and among these data, much potential and valuable knowledge are implicit. The key point is to discover and pick up the useful...

UAV is increasingly popular in the field of military, civil and scientific research, since its low loss, strong adaptability and high mobility. This paper introduces the design and implement of the visual tracking system based on the rotor UAV, and gives the UAV a function of continuous and stable tracking...

With the speedy development of modern industry, the technology of wastewater treatment plays an essential role in the research of environmental protection science. The tech of Pulsed Arc Electrohydraulic Discharge (PAED) has been intense researched by virtue of its marked treatment effect, low power...

Laser induced forming is a kind of dieless forming technology, which is caused by the uneven internal thermal stress caused by local transient heating. In this paper, the characteristics of the laser flexible thermal forming technology are introduced, and the application prospect of the laser induced...

Ferroelectric thin films described by the transverse field Ising model have been studied by using the usual mean-field approximation. The critical behaviors (the critical surface transverse field and Curie temperature) and polarizations in a transverse Ising film with multi-surface layers are calculated....

A global route planning method for intelligent vehicle is presented here based on the comparison, selection and development of classic figure search algorithms. In addition, the effects of traffic signs in road network are also be considered in the method, so to insure that any traffic laws such as steering...

First of all, several data version management strategies in software transactional memory have been studied in this paper, and both advantages and disadvantages are analyzed. Then a novel data version management strategy named Foresight in software transactional memory is put forward. Its design idea...

Small and Medium-sized Enterprises (SME) is the major driving force for the economic development of China, but financing difficulties are impeding their smooth development. Therefore, enhancing the construction of credit system is of great importance for solving the problem. In this essay, we firstly...

In order to cope with climate change, China proposes “carbon peak and carbon neutrality” goals. The low carbon development of coastal tourism is essential for the tourism industry to assist in achieving the “carbon peak and carbon neutrality” goals. By defining the connotation of the low carbon development...

Several severe power failures occurred in recent years, the reason of which are common fault-trip-cased flow transferring. This phenomenon can lead to abnormal trip of load flow protection, and at worse result in intertripping. To prevent potential power failures, wide area protection based on wide area...

Sunlight is constantly changing during the year, including a certain regularity random variation due to weather changes and the result. Thus, by the light on the photovoltaic power generation system is also in flux. Incorporated into the distribution network after PV, the network will change the trend,...

The study introduces a new method of microporous boring machining process for high-precision.First,it is difficult to get better surface quality of microporous with micro cutting technology.Second,using again boring processing methods and the reasonable process parameters can improve greatly the quality...

The living conditions of earthworms were studied, with the aim of improving our understanding of soil recovery from acidification and of the degradation and aggregation of substances in soil. This information can provide a theoretical basis for solving the problem of excessive heavy metals in agricultural...

Ecological civilization is a new stage in the development of human society, and it is the grand goal in 21st century. It is an important task for ecological civilization to promote the coupling level of industrial and resource-environment in the process of industrialization and urbanization. This paper...

For multi-objective particle swarm optimization, the selection of the global best becomes an interesting topic, because it balances convergence and diversity. But the global best selected by the existing strategies has a high probability of not dominating the particle. The flight towards the global best...

The measuring technique for characteristics of localized surface plasmon resonance (LSPR) effect of metallic nanostructures is studied in this paper. A simple apparatus for measuring the LSPR properties is designed and developed with the help of an integrating sphere using a single light beam; the sphere...

In this paper, we discuss a weighted average of the maximum and minimal principle curvature as the diffusion coefficient for de-noising digital images with an additive noise. The main advantage of this approach is that it preserves important structures similar to Gauss curvature-driven diffusion, and...

The XiXin EU, the freight transport channels of "Chang’an Cargo train", is in the aorta of the new Silk Road which makes "Chang’an Cargo train" as an important starting point for the new Silk Road Economic Zone. But in the process of gradual normalization of operations, the "Chang’an Cargo train" not...

Physics is a branch of science, mainly to explore by experiment. Mechanics is an organic part of physics, mechanics experiment is particularly important. Experiment is a teacher to teach, students learn the important link, is an important part of mechanics.Simulation experiment method in recent years,...

The chemical mechanical polishing ultra precision process technology mechanism of Aluminum Interconnected Line for ULSI was analyzed according the physical and chemical properties of Aluminum. In order to meet the request of environmental protection and reducing ion staining, the alkaline slurry was...

In recent years, the silicon sol has now entered a relatively smooth period, and plays an important role in industries. Especially the silicon sol is used in the ultra precision Machining Technique. The most application is be the composition of slurry. Its stability is very important in the process of...

A kind of integrated machine was designed for community science popularization. It was built rich digital science resources, and information resource was customizable, updated quickly and targeted. So as to meet the individual needs of community residents. The integrated machine used touch screen, and...

Multiple modeling is required by GM(1,1) for multi-stream sequence and there could be abnormal simulation even failed modeling sometimes. This paper analyze grey modeling for multi-stream sequence, especially, grey modeling based on matrix sequence (MGM), and research on its application in Video Shot-Boundary...

The word 商 (pronounced Shang) appeared in the Chinese language very early, and has been long used as a basic word. This paper analyzes and sorts out the original literature and Chinese corpora, aiming to clarify the original meaning and historical development of the word Shang. Due to the controversies,...

This paper begins with the problems encountered in logging while drilling practice, proposing the necessity and requirement of receiving circuit with rigorous design. Considering the fact that the amplitude of noise signal with low frequency is far greater than that of formation wave, this paper provides...

Aim to the requirement of the mission of the Tracking and targeting to ground of the quantum communication satellite, this paper investigates an idea of designing a distributed simulation system based on the TCP/IP technology improved by IOCP(I/O Completion Ports). This simulation system is made up of...

This paper designs a new intelligent system for watering flowers based on internet of things (IOT), which is suitable for indoor, balcony and courtyard, etc. When the flowers are neglected in long-term, intelligent device for watering flowers can do the watering operation timely and quantitatively. This...

College education is essentially adult education, thus college management should also be adult management. Colleges are important bases to provide the society with talents, and students’ management work will directly affect the cultivation of construction talents of socialist modernization, thus it is...

The multi-unmanned aerial vehicle (UAV) must autonomously perform reconnaissance-attack-evaluation tasks under multiple constraints in the battlefield environment. This paper proposes a nearest neighbor method designed with the shortest neighboring distance as an indicator which quickly solves the optimal...

Finished product wood veneer hanging installation method is a kind of metho to using metal keel and hang on the wall to install finished product wood veneer, it leaves out the base plate of the conventional method in the construction, also can realize the replacement of thin veneer on the surface, and...

In this paper, we evaluate the development level of internet finance by focusing on three major virtual economies, internet “Baby” fund, internet financial credit and Shanghai Composite Index for the first time. We examine the disequilibrium relations between the development of both internet finance...