Journal of Intelligent & Fuzzy Systems - Volume 34, issue 2

Authors: Shang, Jianren | Tian, Yunnan | Liu, Yi | Liu, Runlong

Article Type: Research Article

Abstract: In order to be able to efficiently carry out the management of workshop production scheduling, and improve the production efficiency and product quality, it is necessary and urgent to put forward a more flexible and efficient optimization algorithm. The combination of the genetic algorithm and particle swarm algorithm could give full play to each other’s characteristics, make up for deficiencies such as the low calculation speed of genetic algorithm and search scope limitations of optimum solution in the particle swarm optimization, and the hybrid particle swarm optimization algorithm was formed with fast computation speed and the reliable optimal solution. The …hybrid algorithm was applied to the model of production scheduling, and the calculation steps and structure of the hybrid algorithm were defined. In order to verify the feasibility and effectiveness of the algorithm, simulation analysis was carried out by using Matlab. According to the analysis results, it can be seen that the hybrid algorithm applied to production scheduling is not only efficient but also flexible. The combination of genetic algorithm and particle swarm optimization algorithm to form a hybrid optimization algorithm has a certain reference value for the production scheduling similar algorithm optimization. Show more

Keywords: Production scheduling, particle swarm optimization, hybrid, genetic algorithm

DOI: 10.3233/JIFS-169389

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 955-964, 2018

Authors: Ji, Zhaoqi | Tian, Hong | Yang, Zhongnian | Liu, Tao | Bandara, Samila

Article Type: Research Article

Abstract: Under the environment that the safety problem of coal mining is becoming more and more serious, research on coal seam has become one of the hot topics. Among them, the water inrush from coal seam floor is one of the main threats to coal mine safety. Based on this, the mechanism of water inrush from coal seam floor was revealed by the coupling of seepage and stress and the variation regularity of permeability of rock during the whole stress-strain process was analyzed, and the effects of confining pressure and osmotic pressure on permeability were studied and the dynamic evolution models …of rock permeability and the equation of permeability and volume strain were established. The permeability and failure process of rock were analyzed and rock engineering system (ORES) method was proposed. The seepage stress coupling mechanism of coal seam floor was analyzed and the governing equations of seepage stress coupling of coal seam floor were constructed. Hebei Xingtai North wells in Dongpang Coal Mine 9208 working face water inrush examples were analyzed. This study can provide technical support for the analysis of coal seam floor water disaster and the treatment of water inrush. Show more

Keywords: Coal seam floor, water inrush mechanism, seepage stress coupling, seepage

DOI: 10.3233/JIFS-169390

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 965-974, 2018

Authors: Liu, Dunnan | Zhang, Xian | Gao, Chuncheng | Yang, Mo | li, Qi | Li, Mu

Article Type: Research Article

Abstract:  With the increase of labor cost, material cost and equipment cost in the electric power project, the traditional cost management can’t meet the needs of the people. The new project cost management system has always been the research hotspot of the relevant scholars. Based on this, from the project management theory, the labor, material and equipment control system in the electric power construction project were established, labor costs were raised to the initial stage to control, the use of materials was standardized, material procurement was effectively controlled, and the life cost of the construction equipment was analyzed. Based on the …comprehensive fuzzy evaluation model, the cost management system of electric power project was evaluated, and a complete set of cost control system of electric power project was established. An electric power construction enterprise was taken as an example, and the construction project cost control effect was evaluated to prove the feasibility of the scheme. This study provides an intuitive and quantitative evaluation system for the cost control in construction process of power engineering manager. Show more

Keywords: Electric power construction project, project management, cost control system

DOI: 10.3233/JIFS-169391

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 975-984, 2018

Authors: Liu, Ming Zheng | Zou, Zongfeng

Article Type: Research Article

Abstract: At present, the spot exchange will encounter two major problems in the commodity transaction. One is the risk of the transaction. The second is the transaction controllability problem. The problem of transaction accuracy is mainly manifested in the complex links. The information transparency is not high. The stakeholders are relatively independent, thus exacerbating the risk of the transaction. Spot trading market is very large, there are many difficulties in the process of market transactions, and the controllability is not high, which brings security risks to the healthy development of spot trading market. Therefore, in this paper, the block chain technology …distributed book functions were combined to improve the rapid interaction of information. Market bi-directional transactions were increased, the authenticity and reliability of the transaction was guaranteed, and the risk of the transaction was reduced. In addition, the decentralization function of block chain technology was exploited, and the ability of market regulators to supervise the market order was improved. The healthy development of spot trading was guaranteed. Show more

Keywords: Block chain technology, spot transaction, distributed account, de centralization

DOI: 10.3233/JIFS-169392

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 985-993, 2018

Authors: Chao, Youcong | Guo, Shijun | Liu, Xiaoqun

Article Type: Research Article

Abstract: After several decades of reform and opening up, the economy has developed rapidly, and the development speed of the real economy has slowed down gradually. In order to obtain sufficient funds in a short period of time to meet the production and operation needs, many enterprises carry out financial capital management, which has a certain impact on the profitability of enterprises. In addition, in order to study the impact of financial capital management on profitability, in this paper, relevant data of some non-financial listed companies from 2007 to 2013 in China was selected, and the multiple linear regression analysis was …carried out. Through the analysis, it can be seen that the proportion of financial assets and the return on net assets shows a significant negative correlation, which means that there is a negative correlation between the financial capital operation scale of non-financial listed companies and the profitability of listed companies. Based on the empirical analysis, in this paper, the capital management and structure optimization proposal for improving enterprise profitability were proposed; which is of great significance to the development of enterprises and finance in China. Show more

Keywords: Financial capital, listed company, operation, profitability

DOI: 10.3233/JIFS-169393

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 995-1002, 2018

Authors: Jinglong, Wen | Bin, Zheng

Article Type: Research Article

Abstract: Currently the matrix vibration of the strapdown inertial navigation system (SINS) for some cruise missile needs to be reduced and conventional algorithms occupy excessive hardware resources. Considering the vibration frequency range from 50 to 400HZ has the biggest impact on the guidance accuracy, we propose a target method for active vibration control in the SINS. Firstly, the requirement analysis is carried out for the target method, and secondly the MATLAB software is used to design the parameters and compare the filtering simulation. Then the hardware design is performed and the filtering algorithm is improved to reduce the power consumption approaching …green computing. Finally the effectiveness and cost-efficiency of the target method for active vibration control in the SINS is verified by the experiment. The results show that the target method can separate the main vibration frequency which affects the guidance accuracy with a good linearity effect, efficient hardware utilization and low power consumption approaching green computing. Moreover, the accuracy, the effectiveness and efficiency of the control algorithm have been also significantly improved. Show more

Keywords: Active vibration control, green computing, strapdown inertial navigation system (SINS), MATLAB, FPGA

DOI: 10.3233/JIFS-169394

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 1003-1012, 2018

Authors: Yi-Gang, Jia | Huan, Li | Guang-Yu, Wu | Zhi-Jun, Yuan | Qing, Zhang

Article Type: Research Article

Abstract: Based on the 3D virtual laminated element and considering the beam-slab-column collaboration, this paper conducts the nonlinear infinite laminated element analysis of three reinforced concrete (R. C.) space frame structural models with different seismic precautionary, respectively, after single-column failure and collapse calculation analysis and method verification of a two-bay and four-floor R. C. space frame. Analysis results show that: 1) with the increase of the seismic precautionary intensity, the space stiffness of the frame structure when collapsing as a whole increases, and the collapse mode transfers from the “slow changing” to the “abrupt changing;” 2) the higher the seismic precautionary …intensity is, the stronger the vertical progressive collapse resistance capability of the structure is; 3) the floorslab membrane effect can delay the appearance of the beam’s catenary effect, but enhance the framed beam-to-floorslab membrane stress mechanism and the catenoid mechanism; the slab-framed beam collaboration can increase the vertical progressive collapse capability in the catenary (catenoid) period. Show more

Keywords: 3D virtual laminated element, frame structure, beam-slab-column collaboration, progressive collapse, nonlinear analysis

DOI: 10.3233/JIFS-169395

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 1013-1024, 2018

Authors: Cai, Siyu | Lei, Xiaohui | Meng, Xianyong | Yi, Ji

Article Type: Research Article

Abstract: Owing to climate change, human activities and underlying surface change in the basin, a series of hydrological factors have not only changed in the annual form, but also changed the distribution trend of monthly hydrological factors in a year. This phenomenon has seriously affected the ecological water demand in the river channel. The calculation and analysis of ecological water demand will be affected by runoff sequence after variations. This paper proposed a distribution trend model of runoff by using Gini coefficient, which was used to identify the variation points of runoff at Ga Datan station in the Da Tong River …basin. Then the monthly ecological water demand in the river channel was calculated. Finally, through comparing the mean flow before and after variation, in addition to ecological water demand and broken frequency of ecological flow, the study analyzed the effects of hydrological variations on ecological flow. Show more

Keywords: Gini coefficient, comprehensive diagnosis system, ecological flow

DOI: 10.3233/JIFS-169396

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 1025-1031, 2018

Authors: Ma, Chuanhui | Ruan, Yongping | Zheng, Kai

Article Type: Research Article

Abstract: Enterprise operating liabilities refers to the debt involved in sale of goods or services; they are one of the most important external financing resources for enterprises. Based on the theory of industry economics and corporate finance, using data of A-share listed companies from year 2000 to 2014, this paper discusses two mechanisms product market competition and enterprise asset strategy, and their influence on enterprise operating liabilities. It finds out that, when the product market competition is fiercer, the operating liabilities are more; when the enterprise implements “heavy” assets strategy, the operating liabilities are more; when the enterprise is in the …fierce market competition, and the heavy-asset enterprise’s operating liabilities become lower. The further research tests the relationship and the changing speed of the operating liabilities and financial liabilities of firms, by contrast, it finds out the financial liabilities have totally different features and characteristics from operating liabilities. With panel data, hybrid recommender systems method using for reference to our model design, thus, this paper starts from an innovative research perspective, and the research findings have broadened and enriched the strategic theory research, and have some kind of practical significance to the enterprise financing decision in practice for them to achieve the maximum value of enterprises. Show more

Keywords: Product market competition, enterprise asset strategy, operating liabilities

DOI: 10.3233/JIFS-169397

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 1033-1043, 2018

Authors: Shao-Jiang, Lin | Jia-Ying, Chen | Zhi-Xue, Liao

Article Type: Research Article

Abstract: This paper focuses on improving the accurate prediction of tourist capacity, which is the key to solve the contradiction of tourism economy development and ecological environment protection. EMD-BP integrated predictive model is proposed and uses Empirical Model Decompose method to decompose time-series data of visitors into several TMF, then forecasting each component by BP neural network. In order to shown the effective of our method, an empirical study of Jiuzhaigou is conducted, and the average error rate of EMD-BP integrated prediction model is 8.8%, among which the error within 1% accounts for 31.3% of the total predicted amount, the error …within 5% accounts for 41.7%, the error above 10% accounts for 30.2% in slack seasons and 69.8% in busy seasons. Show more

Keywords: Empirical Model Decompose, BP neural network, integrated prediction method, JiuZhaigou

DOI: 10.3233/JIFS-169398

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 1045-1052, 2018