Articles in press have been peer-reviewed and accepted, which are not yet assigned to volumes /issues, but are citable by Digital Object Identifier (DOI).
Display Method:
Limit Behaviour of Solutions to a Class of Boundary Value Problems with Equivalued Surface in a Domain with Thin Layer
Mei-ping XIAO, Ling-hui CHEN, Wei-lin ZOU
Accepted Manuscript
Abstract(131) FullText HTML(157) PDF 628KB(5)
This paper mainly study a class of boundary value problems with equivalued surface of nonlinear elliptic equations on a domain with thin layer arising in resistivity well-logging in petroleum exploitation. Under the assumptions that the coefficient of the zero order term and source term both belong to L1, the existence and uniqueness of bounded solutions to such problems are proved. Furthermore if the coefficients of the equation satisfy certain convergence conditions, the limit behaviour of solutions is studied as the thin layer converges to a surface. This result shows that in practical calculation, the boundary value problem with equivalued surface on the thin layer can be approximately replaced by the boundary value problem with equivalued interface.
An Adaptive Dominance and Reference Vector based Evolutionary Algorithm for Many-objective Optimization
Wen-jing SUN, Jun-hua LI
Accepted Manuscript
Abstract(198) FullText HTML(195) PDF 708KB(1)
Improved dominance method improve the ability to approach the Pareto front, but they show poor ability in balancing convergence and diversity of population. To address this issue, this paper proposes an adaptive dominance and reference vector based evolutionary algorithm for many-objective optimization (ADRVEA). Firstly, the adaptive dominance (AD) is proposed to design an niche mechanism. Then the reference vector is adopted to divide the objective space for the purpose of the enhanced diversity. Finally, the fitness function is constructed to complete the elite selection. The experimental results demonstrated that the proposed ADRVEA not only has significant performance, but also effectively balances the convergence and diversity.
Display Method:
2020, 34(4).  
Abstract(55) FullText HTML(58) PDF 20830KB(28)
2020, (4): 0-0.  
Abstract(68) FullText HTML(87) PDF 665KB(3)
Fault Diagnosis Method of Rolling Bearing Based on Equivalent LBP Texture Map
Bang-shu XIONG, Xiao-fei ZHANG, Qiao-feng OU
2020, 34(4): 1-6.   doi: 10.3969/j.issn.2096-8566.2020.04.001
Abstract(187) FullText HTML(158) PDF 856KB(3)
In order to diagnose the rolling bearing fault of the helicopter's automatic tilter, when the Convolution Neural Networks (CNN) directly extracts the fault features, the features of unfavorable factors such as noise can easily mislead the network learning, and there is a problem of ignoring local structural features, which affects the recognition To further improve the rate, a rolling bearing fault diagnosis method based on the combination of the equivalent local binary pattern (LBP) texture feature map and CNN is proposed. Firstly, the two-dimensional time-frequency image of rolling bearing vibration signal is obtained by using continuous wavelet transform, and the time-frequency image is preprocessed. Then, the uniform LBP algorithm is used to extract the texture features of gray time-frequency images to form the texture map. Finally, the convolution neural network model is built to train the texture map data set and achieve the optimal, so as to realize the diagnosis of the fault type of rolling bearing. Diagnostic experiments were carried out using the bearing fault data of the research team and Case Western Reserve University. The recognition accuracy is up to 99.23% and 100%, which is a maximum increase of 1.7% compared with the traditional method. The results show that the proposed method can effectively realize the accurate identification of fault diagnosis.
Rolling Bearing Fault Diagnosis Method Based on EMD and Continuous Hidden Markov Model
Zhou LONG, Xi-yang WANG
2020, 34(4): 7-12, 28.   doi: 10.3969/j.issn.2096-8566.2020.04.002
Abstract(343) FullText HTML(352) PDF 759KB(8)
In view of the difficulty in classifying and identifying the vibration signals of small damages in rolling bearings, a fault diagnosis method for rolling bearings based on EMD and continuous hidden Markov model is proposed. This method perform empirical mode decomposition on the framed preprocessed signal, selects the first five IMF components with high correlation with the original signal by calculating correlation coefficients, and then extract energy, kurtosis and margin from these filtered IMF components to form feature vectors and finally the hidden Markov model is trained to identify the test signal failure. Through experimental verification, after pre-setting the fault type of the bearing fault, the method proposed in this paper can effectively and accurately identify the fault type of the bearing to be tested.
Effect of Solution Temperature on Microstructure and Mechanical Properties of Selective Laser Melting GH3625 Alloy
Yong-qing CAO, Bai-ping LU, Zhi-feng XU, Huan YU, Zhi-quan LIU, Shi-hao LI, Jing-peng FENG
2020, 34(4): 13-18.   doi: 10.3969/j.issn.2096-8566.2020.04.003
Abstract(175) FullText HTML(133) PDF 970KB(3)
GH3625 alloy was formed by selective laser melting (SLM). The single factor method was used to study the effect of solution temperature on the microstructure and mechanical properties of GH3625 alloy formed by SLM were studied, and its mechanism was preliminarily discussed. The results show that with the increase of the solution temperature, the Laves phase is completely dissolved, A large amounts of the needle-like δ phase and carbides are dispersed and precipitated, and the microstructure tends to be uniform, the Vickers hardness and tensile strength of the GH3625 alloy show a trend of increasing first and then decreasing. At 900 ℃, the Vickers hardness and tensile strength reached the maximum, 324 HV and 990.82 MPa, respectively. The tensile elongation of the specimen remains above 34%, and the fracture surface with dimple, the alloy is plastic failure.
On AClass of Generalized Bezier Curves and Their Properties
Jun YANG, Qian-ying HUANG
2020, 34(4): 19-24.   doi: 10.3969/j.issn.2096-8566.2020.04.004
Abstract(108) FullText HTML(106) PDF 656KB(6)
To enhance the geometric modeling abilities of classical Bezier curves, the probability density function of a generalized binomial distribution is used as the basis function to construct the generalized Bezier curves. After studying the properties of basis functions and curves, we get a series of important matching algorithms for modeling, such as the generalized deCasteljau algorithm and the generalized subdivision algorithm.
Surface Modification of 1Cr17Ni2 Stainless Steel
Zong-hao WANG, De-an HU, Dong-hai CHENG, Zheng-bing LI, Jia-tao CHENG, Yi-le GUO, Shuo HUANG
2020, 34(4): 25-28.   doi: 10.3969/j.issn.2096-8566.2020.04.005
Abstract(148) FullText HTML(111) PDF 707KB(5)
The reinforced coating of GH4169 powder was prepared on the surface of 1Cr17Ni2 stainless steel by laser cladding process to study the impact of laser power and scanning speed on the mechanical properties of the cladding, and to analyzing the microstructure and hardness of the cladding section prepared under the best process parameters. The results show that, The section of the cladding layer is divided into the cladding zone, the bonding zone and the matrix heat affected zone, in which the cladding zone is composed of dendritic (γ+Laves) eutectic structure, and the structure in the bonding zone is coarse columnar structure, and there is a vertical fusion line, which is growing towards the cladding layer, while the structure in the matrix heat affected zone is composed of coarse needle-like martensite. With the increase of laser power and scanning speed, the hardness of the cladding zone increases showing a tendency of increasing first and then decreasing. In the cladding section prepared under the optimum process parameters, the hardness of the cladding zone is in the range of 317~326 HV, which is higher than that of 1Cr17Ni2 stainless steel.
Screening and Reuse of Formaldehyde-Degrading Bacteria in Rhizosphere Microorganisms of Epipremnum Aureum
Hang YANG, Jian LI, Qing-hui LIU, Zhi-yu WANG, Yan LI, Wei-chuan ZHANG, Yong YAO, Tuan LIU
2020, 34(4): 29-35, 50.   doi: 10.3969/j.issn.2096-8566.2020.04.006
Abstract(333) FullText HTML(408) PDF 1227KB(10)
Combinationusing plants with microorganisms to gaseoustreat formaldehyde was considered to be an efficient, economical and environmentally friendly method.In this paper, a formaldehyde-degrading bacterium LL3-1(gram-positive and facultative aerobic) was successfully isolated from the rhizosphere microbial community of Epipremnum Aureum. From the Scanning electron microscope (SEM) photos, the bacterium LL3-1 were rod-shaped, opaque, with diameter ranging from 712.8 nm to 1.146 μm, and width ranging from 199.4 nm to 495.5 nm. Byusing 16S rDNA technology, the bacterium LL3-1was identifiedas a Lysinibacillus endophyticus strain (with a unique GenBank accession number of MN784374). From results of the liquid formaldehyde degradation experiment, LL3-1 strain can completely degrade formaldehyde solution up to 500 mg/L in 6 hours under the environment of 35 ℃, a rotational speed of 150 r/minand a pH7.0. Finally, the 100 mL bacterial liquidwithin culture mediumwas sprayed on the leaves of Epipremnum Aureum, and the dynamic fumigation system was used to explore the potential of LL3-1 strain combined with Epipremnum Aureum in purifying gaseous formaldehyde both in daytime and at night. The results showed that after two time of spraying both in the daytime (7:00) and at night (19:00), the average formaldehyde purification efficiency of Epipremnum Aureum increased by 33.1% ± 1.28% in daytime and 12.17% ± 2.25% at night. This indicates that strain LL3-1 can not only degrade high concentration formaldehyde in solution, but also has great potential in treating air pollutants in combination with plants.
Micromechanical Analysis of Transverse Shear Fracture Behavior of Continuous Fiber Reinforced Aluminum Matrix Composites
Gao-feng SHEN, Qian SU, Feng-hua LIU, Chang-chun CAI, Zhen-jun WANG, Zhi-feng XU, Huan YU
2020, 34(4): 36-43.   doi: 10.3969/j.issn.2096-8566.2020.04.007
Abstract(503) FullText HTML(378) PDF 1119KB(4)
For the graphite fiber reinforced aluminum matrix composite material prepared by vacuum pressure infiltration method, the representative volume unit cell was established by observing the microstructure characteristics. On this basis, a unit cell finite element model considering the ductile damage of the matrix and the interface damage and failure behavior is established. The research results show that the unit cell finite element model considers the failure behavior of the interface in the transverse shear deformation of the composite material, so the transverse shear elastic modulus obtained by the numerical simulation is slightly lower than the calculated value of the micromechanical formula. The interface damage occurs first and accumulates gradually during the transverse shearing process. As the shear strain increases, local damage to the interface occurs and induces damage to the matrix alloy near the fiber. In the final stage of shear deformation, the failure area of the matrix alloy between the fibers is connected to cause the overall failure of the composite material. Under the action of transverse shear load, interface debonding and matrix alloy failure near the fibers are the main mechanisms that cause the failure of composite materials.
Aircraft Tube Crack Defect Detection Based on Weak-Magnetic Technology
Xian-hu PENG, Run-qiao YU, Meng-meng GUO
2020, 34(4): 44-50.   doi: 10.3969/j.issn.2096-8566.2020.04.008
Abstract(80) FullText HTML(44) PDF 1090KB(3)
Aircraft hydraulic system conduits are subject to under great pressure, which is a key component of the aircraft pipeline's compression resistance. This study proposes a weak magnetic detection technology based on the geomagnetic field environment to solve aircraft duct crack defects. Firstly, the principle of weak-magnetic detection was introduced and the magnetic field characteristics of aircraft duct crack defects are simulated and analyzed using by COMSOL Multiphysics simulation software. Then the feasibility of weak-magnetic detection of aircraft duct crack defects is theoretically proved. After that, an independently developed high-precision fluxgate sensor was used to test the aircraft catheter test specimens containing artificial prefabricated crack defects, and the detection signals were processed. In order to improve the signal-to-noise ratio of the defect, the detection signal was subjected to magnetic gradient calculation and the 3σ method in the normal distribution is used to judge the defect, so that the detection effect of the defect is significantly improved. The results of simulation analysis and testing experiments show that for artificial crack defects with a depth greater than 0.1 mm, the weak-magnetic detection technology has a good detection rate, which verifies the feasibility of the weak-magnetic detection technology in aircraft duct defect detection.
Cluster Analysis of Professional Value in Higher Vocational Teacher and Relation to Job Burnout
Fu-xia YI, Ning ZHOU
2020, 34(4): 51-57, 65.   doi: 10.3969/j.issn.2096-8566.2020.04.009
Abstract(264) FullText HTML(303) PDF 515KB(2)
Based on the perspective of personal center, this paper takes 275 higher vocational teachers as the subjects in Jiangxi province, and uses SPSS to carry out cluster analysis, multiple variance analysis, logistic regression and other statistical researches. The results indicated that: Higher vocational teachers belong to the level of mild burnout, with a burnout rate of 58.2%. There are three types of professional values in higher vocational teachers: survival type (14.9%), common type (65.8%), development type (19.3%). Teachers with developmental professional values have the lowest level of burnout, and the incidence of burnout is only 45.1% of that of survival teachers.There are significant differences in the types of professional values among teachers with different individual characteristics. According to the results of empirical research, this paper puts forward some suggestions on the establishment of positive professional values from both schools and individuals.
Energy Detection and Identification of Welding Line Based on Arc Sound MFCC Characteristics
Lin-ran HUANG, Hai-quan LUO, Jia-min ZHAO, Qi-sheng WANG, Yan-feng GONG
2020, 34(4): 58-65.   doi: 10.3969/j.issn.2096-8566.2020.04.010
Abstract(164) FullText HTML(164) PDF 1363KB(1)
The weld line energy represents the arc energy received by the weld and is closely related to the weld penetration. Aiming at the detection and identification of MIG welding line energy, a recognition method based on arc sound MFCC characteristics is proposed. The arc acoustic signal is formed by the convolution of the excitation pulse of the sound source and the impulse response of the sound channel. Based on this, the auditory perception mechanism of the human ear is simulated, MFCC characteristics are extracted, and the channel envelope of arc acoustic signals in the Mel frequency domain is obtained. The MFCC feature of arc sound is used as the feature vector to establish a support vector machine model. The calculation results show that the overall recognition rate of different heat input in the welding process by this method is 99.25%, and the calculation speed is faster, which provides a new method for online monitoring of welding quality.
The Design of the Placed Magneto-elastic Cable Force Sensor and the Stress Test of the Steel Cable
2020, 34(4): 66-72.   doi: 10.3969/j.issn.2096-8566.2020.04.011
Abstract(230) FullText HTML(198) PDF 1131KB(69)
Steel cables have the characteristics of large flexibility and high strength, which is widely used in large-scale building structures, traction machinery and large-span bridge projects. The state of the cable force is an important symbol to measure the health state of the steel cable structure, so the state of the cable force must be monitored. In this paper, a magneto-elastic cable force measurement system was built, and a new type of magneto-elastic cable force measurement sensor was developed to solve the problems of complicated installation, large measurement errors, and uneven magnetization of existing sleeve and bypass magneto elastic sensors. Taking the galvanized steel cable with a diameter of 15 mm as the research object, the test study on the measurement of the cable force of the placed magneto-elastic sensor under different excitation modes had been carried out. The test results show that: no matter which excitation method is used, the placed magneto-elastic sensor has higher linearity, under the same test conditions, the semi-envelope excitation method has a better magnetization effect, and its sensitivity is 1.74 times higher than that of the single bypass excitation method, reaching 0.061 mV/kN.
A Multi-Scale Contrast Enhancement Method for DR Image of Nuclear Power Weld
Xiao-feng ZHANG, Wei-lu ZHOU, Hui-min YANG
2020, 34(4): 73-76.   doi: 10.3969/j.issn.2096-8566.2020.04.012
Abstract(138) FullText HTML(148) PDF 802KB(2)
Digital radiography (DR) is the latest X-ray inspection method in nuclear power welds. Aiming at the problems of poor contrast of nuclear power welding seam DR images and easy missing of details, a multi-scale contrast enhancement algorithm for 16 bit DR image is proposed. First, laplacian pyramid is employed for decomposing 16 bit DR image, and then gaussian smoothing filter and subtraction algorithm are used to extract the image detail, and a s-type mapping function is used to enhance detail, and finally the enhanced detail is added to approximate image for DR image reconstruction. The multi-scale contrast enhancement experiments are performed on DR images containing linear defects or circular defects. When the parameters L = 10 and p = 0.8, the developed algorithm can effectively enhance the detail contrast and improve the ability of detect recognition. The developed algorithm has good prospects of engineering application.
Analysis of the Effect of Waterproof Curtain on Foundation Pits
Zi-qi NIE, Shao-qin ZHANG
2020, 34(4): 77-82.   doi: 10.3969/j.issn.2096-8566.2020.04.013
Abstract(195) FullText HTML(165) PDF 818KB(3)
Using MIDAS/GTS to create three kinds of foundation pits model: no curtain, suspended curtain and floor curtain, to simulate, analyze and compare the excavation process of foundation pit under stress-seepage coupling. The research shows that the curtain can effectively control the water level drop outside the pit and the ground settlement caused by the precipitation, and it tends to be obvious with the increase of the curtain depth. After dewatering, the retaining pile shifted towards the foundation pit, and the displacement increased with the increase of curtain depth. The maximum value of the ground settlement after the excavation of the three kinds of foundation pits differs little, The ground settlement within the width of about half of the foundation pit is determined by the excavation and dewatering, while the rest is mainly determined by dewatering. With the increase of curtain depth, the maximum value of precipitation settlement outside the pit decreases from fast to slow, and the maximum value occurs closer to the foundation pit.
Teaching Reform and Practice of Nanomaterials and Technology for Cultivating Innovation Ability and Training Divergent Thinking
Hong-bo LIANG, Yi-xuan LI, Lei XIONG, Jian-ping ZHOU, Yun-ying WANG, Li-ying WAN
2020, 34(4): 83-86.   doi: 10.3969/j.issn.2096-8566.2020.04.014
Abstract(293) FullText HTML(216) PDF 471KB(11)
As an interdisciplinary course, nanomaterials and technology will introduce students to understand materials, materials fabrication and materials analysis based on nano scale via the combination the knowledge of physic, chemistry and materials. In this paper, teaching reform and practice of Nanomaterials and Technology for cultivating innovation ability and training divergent thinking were discussed based on the increasing innovation ability demanding for graduate education with economical transition and the characteristics of Materials Science and Technology. Firstly, the content of course is constructed mainly from three parts, such as nano scale, controllable assembly of atom or molecular, and nano characteristics by taking the construction, characteristic and property of nano scale as the main line. Case teaching method is used to cultivating innovation ability and deliberative teaching about advances and the famous research group over world in nanomaterials field is carried out through the flipped classroom to train divergent thinking. Trough six years teaching practice of nanomaterials and technology, it shows that masters trained by combining case teaching method and deliberative teaching method possess better innovation ability and divergent thinking than traditional teaching method. As a result, they show better innovation ability during their graduate study and subsequent career.
Aviation Characteristics Postgraduate With Matrix Training Method Base on the Aviatic Scientific Research Projects
Jiang-yan MENG, Ming-shan XUE, Yun-ying WANG
2020, 34(4): 87-90, 111.   doi: 10.3969/j.issn.2096-8566.2020.04.015
Abstract(192) FullText HTML(192) PDF 454KB(7)
In order to better cultivate the postgraduate of aviation characteristics with the ability of the engineering technology, they are cultivated base on the aviation scientific research projects with the matrix training method was practiced with more than 10 years. The matrix training method is that a graduate student participates in many scientific research projects and more than one graduate student participates in a scientific research projects overlapping for postgraduate traiing. The results are shown that: This cultivating mode base on the aviation scientific research projects with the matrix training method is the guarantee to improve the quality of the aviation characteristics with ability of the engineering technology postgraduate cultivating. They are cultivated in this way can not only be developed and trained in advance, but also have the ability of the engineering technology, and they are approved by the employer. Hence, it is an effective cultivating mode.
Diversified Teaching Exploration of Materials Science and Engineering by Means of Computer Simulation
Liang CHEN, Qian WANG, Xiao-lin XIE, Lei XIONG
2020, 34(4): 91-96.   doi: 10.3969/j.issn.2096-8566.2020.04.016
Abstract(314) FullText HTML(334) PDF 749KB(20)
Materials Science and Engineering is a professional basic course of materials major in colleges and universities, which involves a wide range of the knowledge system. Traditional teaching mode is hard to get good effect. Accordingly, guided by computer simulation and combined with the training goal of innovation and entrepreneurship, the theoretical course of Materials Science and Engineering has been reformed from the aspects of teaching content, teaching mode, assessment method and integrating research. It is found that the introduction of computer simulation in classroom teaching has been not only an effective combination of scientific research resources and traditional teaching methods, but also enhanced students’ interest in learning, improved classroom efficiency, and enabled students to grasp fully the basic of knowledge of materials science and engineering.
Exploration of Ideological and Political Education in Engineering Practice Based on Case Teaching
Hong-bo GAO, Xiao-hai ZHANG, Guan-hua WU, Shi-jing ZHANG, Bo AO
2020, 34(4): 97-103.   doi: 10.3969/j.issn.2096-8566.2020.04.017
Abstract(201) FullText HTML(216) PDF 726KB(5)
As a new concept and mode of moral education in colleges and universities, curriculum ideological and political education needs to be implemented in nondestructive testing major. Through the mode of case teaching, curriculum ideological and political education was integrated into the course of enterprise exercitation. The combination of ideological guidance and professional knowledge can realize the unification of professional teaching and ideological value guidance while strengthening the cultivation of professional skills, so as to cultivate high-quality quality inspection and management talents with both political and ability integrity. Through the combination of Ideological and political elements and theoretical knowledge, model incentive, positive and negative comparison, on-site communication and discussion, the students’ sense of historical mission is stimulated, their patriotic enthusiasm and national pride are enhanced, the education of honesty and trustworthiness is infiltrated, and the education of sense of responsibility and the cultivation of innovative spirit are strengthened. The teaching results show that the “curriculum ideological and political” program is conducive to the organic unity of students' professional ability promotion and value guidance in the course teaching process, and is conducive to the cultivation of Non-destructive testing senior talents with the core values in the new era of socialism with Chinese characteristics.
Online Teaching Practice of “Computer Image Processing” Course under OBE Educational Philosophy
Lin-xia ZHOU, Hao CHEN, Ming LI, Yan YANG
2020, 34(4): 104-111.   doi: 10.3969/j.issn.2096-8566.2020.04.018
Abstract(261) FullText HTML(274) PDF 603KB(10)
“Computer image Processing” is a professional course of computer technology, information, artificial intelligence and other majors in colleges and universities. It involves a wide range of basic theoretical knowledge and subject fields, rapid technological development, and strong theoretical and engineering practice. During the COVID-19 outbreak in the spring of 2020, the teaching team carried out online teaching through the investigation and analysis of the software and hardware environment for students to carry out online teaching, combined with the characteristics of this course and relying on the network teaching resources established in recent years to continuously promote the teaching reform. Based on the concept of OBE results oriented, online teaching is organized with student development as the center. It emphasizes students’ independent learning and teachers’ guidance, evaluates and gives feedback on students' learning effects in various ways, and promotes the continuous improvement of teachers’ and students’ teaching methods and learning methods, so as to achieve the substantial equivalence between online teaching and offline classroom teaching quality.
Exploration on Teaching Reform of Digital Signal Processing Course Based on Engineering Education Professional Certification
Yuan JIANG, Yu-wei YAN, Qiao-yin HUANG, Ji-yang DAI, Qiao-feng OU
2020, 34(4): 112-117, 122.   doi: 10.3969/j.issn.2096-8566.2020.04.019
Abstract(328) FullText HTML(299) PDF 579KB(5)
The main concept of engineering education professional certification is a result-oriented education mode centered on all students. In order to improve the teaching effect and cultivate students’ practical and innovative ability. This paper takes the course of “Digital Signal Processing” from the School of information engineering of Nanchang Hangkong University as an example, and proposes measures to clarify the objectives of the course, revise the syllabus,integrate teaching content, enhance teaching methods, consummate the assessment, and strengthen continuous improvement. Through the implementation of the teaching reform for 2017 grade automation undergraduates, it is found that the teaching reform has fully mobilized the students' learning initiative and enthusiasm, and improved their ability to solve practical engineering problems
Application of Flipped Classroom in Data Structure
Kun LI, Gang ZHAO
2020, 34(4): 118-122.   doi: 10.3969/j.issn.2096-8566.2020.04.020
Abstract(280) FullText HTML(215) PDF 700KB(7)
The continuous development of network information technology and terminals provides many convenient conditions for the education, and also affects the teaching methods. This paper discusses the teaching of Data Structure course through flipped classroom teaching method. It includes preview stage and class room teaching stage. In the preview stage, the teacher prepares relevant teaching materials, such as teaching videos and teaching ppt. Students are asked to learn pre-taped videos before class and discuss them through we chat or QQ groups. In the classroom teaching stage, students are the main part, and teachers are responsible for guiding, answering questions and solving doubts and controlling the classroom atmosphere. In the process of classroom teaching, we can use the gamified teaching methods to actively mobilize the enthusiasm of students and let them enjoy the happiness of learning, so as to improve the learning effect of Data Structure course and stimulate students' enthusiasm for learning the course.
Teaching Reform and Practice of Innovation and Entrepreneurship Course of Mobile Terminal Programming Technology Based on Competition
2020, 34(4): 123-130.   doi: 10.3969/j.issn.2096-8566.2020.04.021
Abstract(213) FullText HTML(187) PDF 748KB(13)
In order to solve the problem of how to embed the innovation and entrepreneurship education into the professional curriculum of mobile terminal programming technology, this paper summarizes the characteristics of the course research object and the shortcomings of the course teaching, and analyzes the relationship between the innovation competition, innovation and entrepreneurship education and the professional curriculum according to the requirements of the application-oriented talents training. Based on the computer works competition, this paper explores the multi-layer interactive process model and implementation path of integrating competition rules and contents into curriculum teaching. Through the practice of curriculum implementation, it can effectively promote students' awareness and ability of practical innovation, and improve the teaching effect.
Researches and Designs on Smart Vehicles Parking System Based on NB-IoT
DONG Yu-rong, NIE Yun-feng
2017, 31(3): 95-99.   doi: 10.3969/j.issn.1001-4926.2017.03.016
Abstract(961) PDF 724KB(14)
Computation of the Stress Intensity Factor Based on the Interaction Integral Method
GONG Jing-quan, ZHANG Shao-qin, LI He, ZHANG Chen-yu
2015, 29(1): 42-48.   doi: 10.3969/j.issn.1001-4926.2015.01.007
Abstract(558) PDF 833KB(205)
Status and Development of Dacromet Coating
ZHOU Ci-xin, ZHOU Ya
2014, 28(2): 43-49.   doi: 10.3969/j.issn.1001-4926.2014.02.008
Abstract(575) PDF 877KB(118)
Fault Diagnosis of Rolling Bearing Based on Time-frequency Representations and CNN
LIU Bing-ji, XIONG Bang-shu, OU Qiao-feng, CHEN Xin-yun
2018, 32(2): 86-91.   doi: 10.3969/j.issn.1001-4926.2018.02.013
Abstract(342) PDF 932KB(2)
Exploration on Integration of Mathematics Thought and Methods with Teaching of Linear Algebra
2014, 28(3): 105-108.   doi: 10.3969/j.issn.1001-4926.2014.03.018
Abstract(525) PDF 740KB(101)
The Numerical Simulation Analysis for Excess Pore Water Pressure of Pipe-pile with Hole
YI Fei, LEI Jin-bo, HE Li-jun, LE Teng-sheng, ZHOU Xing
2015, 29(1): 72-76.   doi: 10.3969/j.issn.1001-4926.2015.01.012
Abstract(515) PDF 791KB(77)
Dynamics Modeling and Simulation on Rolling Bearing Element with Single Outer Race Defect
REN Shuai, XU Ke-jun, QIN Hai-qin, LI Zhi-nong
2014, 28(1): 85-90.   doi: 10.3969/j.issn.1001-4926.2014.01.016
Abstract(549) PDF 803KB(87)
Research on Calculation Method of Ground Settlement Induced by Subway Shield Tunelling Construction
JIANG An-long
2014, 28(1): 101-108.   doi: 10.3969/j.issn.1001-4926.2014.01.019
Abstract(506) PDF 885KB(101)
Research on Aero Engine Fault Prediction Based on Fuzzy Clustering
WANG You-yuan, ZHANG Zhen-hua, QIAN Wei-wei, XU Chang-bin, NIE Gao-sheng
2018, 32(1): 23-28.   doi: 10.3969/j.issn.1001-4926.2018.01.004
Abstract(283) PDF 785KB(2)
Extraction of Hessian Matrix Laser Stripe Center Based on Difference Image Method
QIN Zi-yang, XIA Gui-suo, FU Yan-jun, LIAO Jun
2017, 31(3): 28-33.   doi: 10.3969/j.issn.1001-4926.2017.03.005
Abstract(433) PDF 949KB(6)

Start publication: 1987

Frequency: Quarterly

Competent unit: Journal of NanChang HangKong University

Host unit: Journal of NanChang HangKong University

Editor: Shenglian Luo

ISSN: 2096-8566

CN: 36-1303/N

Price: CNY 15.00