Innovative Design of Marine Resources Database System Based on Fuzzy Cluster Analysis

Guo, C.; Guan, X.; Shi, L., and Qiu, S., 2018. The influence of earth pressure balanced shield tunnel underpassing coastal water body on stratum deformation. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 237–246. Coconut Creek (Florida), ISSN 0749-0208. The complexity of construction technology and the surrounding soil environment of shield tunnel, especially the construction of soil pressure balanced shield tunnel in soft foundation, will inevitably cause the settlement of the overlying soil stratum and surface of tunnel. When there is coastal water body on the surface above the tunnel, it will change the distribution and size of pore water pressure in the soil stratum below the coastal water body, thus affecting the settlement of the overlying soil stratum of tunnel. However, most urban subway tunnels are double-tunnel single-track shield tunnels, and successive tunnel construction will also cause the ...

Xiao, Q.; Li, R.; Li, C., and Fang, X., 2018. Predicting wave-induced ripple geometry and bottom friction factor. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 148–154. Coconut Creek (Florida), ISSN 0749-0208.The ripples induced by waves are prevalent in the offshore area. The accurate prediction of the ripple characteristics and bottom friction factors is the foundation of the research on the wave deformation, sediment transport and the evolution of shoreline. In this paper, the formulas commonly used for the calculation of the wave-induced ripples are analyzed and evaluated by using the published experimental data from the laboratory experiment and the field observation. The coordinated property of the bed form and the flow condition is considered, and a new prediction method is proposed to calculate the ripple equilibrium geometry such as length, height and steepness. The discriminant function including the wave critical Shields parameters is introduced to take the effect of the bed load transport into account. The formula of wave friction factor is derived theoretically, and the estimation of roughness height is improved by the sand ripples formulas. The results show that the proposed formulas can give a better description of the ripple characteristics when the bed load sediment move in different state. The critical Shields parameters influence greatly on the calculation ripple geometry. Moreover, the new ripple prediction can be used to calculate bottom friction factors efficiently.

Zhang, H., 2018. Multi-point digitalization research of hull plate based on visual communication of hull information. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 685–690. Coconut Creek (Florida), ISSN 0749-0208. The surface of hull plate is mostly composed of complex and inextensible spatial surface. The bending process of it is still finished by hand, which has become one of the bottlenecks in the digitalization of hull construction. In order to realize the digital processing of hull plate, combined with visual communication and according to the requirements of hull plate forming technology, a technical scheme based on PID control method was applied to the hull plate forming. By applying the multi-point forming process, large-scale steel plate was formed in the small equipment. In the multi-point digital forming system, combined with the PID control method, the required shape was obtained through prec...

Chen, C.; Chiang, Z.; Liu, Y., and Zeng, X., 2018. Critical success factors in marine safety management in shipping industry. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 846–850. Coconut Creek (Florida), ISSN0749-0208.About three-fourth of global flow of cargo is currently transported through shipping. The boom of international trade, which mainly depends on marine transportation, in past years has shipping industry become the economic focus in coastal countries. Along with the economic development and increasing global trade, the increasing number of ships and large-scale ships, accidents at sea are not eliminated with improving marine technology. It is therefore important for shipping industry, through management, establishing safety management mechanism conforming to regulations and suitable for ships to reduce operational risks and further eliminate accidents caused by personal factors in order to create business performance of enterprises. Shipping industry is the research object in this study. Supervisors and employees of Fujian Shipping Company are sampled for the questionnaire survey. Total 300 copies of questionnaire are distributed, and 256 valid copies are retrieved, with the retrieval rate 85%. The research results are concluded as followings. (1) From the survey, organizational planning was mostly emphasized in safety management in shipping industry. (2) From the overall weights of evaluation indicators, tope five indicators, among 17 evaluation indicators, are competent personnel, censorship, regulation compliance, sound system, and administrative support. Suggestions are proposed according to the results, expecting to analyze the critical factors in the establishment of safety management systems in shipping industry. Proper strategic suggestions are also proposed to solve the problems encountered in safety management systems to enhance the effectiveness of safety management.

He, N.; Jiang, T., and Zhang, L., 2018. Experimental research on the vapor pressure and critical parameters of ethyl fluoride (HFC-161). In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 129–134. Coconut Creek (Florida), ISSN 0749-0208. Nowadays, many alternative refrigerants are studied for protecting ozonosphere. HFC161 is one of these refrigerants which are friendly to environment, because its Ozone Depleting Potentials (ODP) is zero. And it has a very low global warming potential, high cooling capacity and excellent energy efficiency. In present work, the vapor pressure of HFC161 has been measured using a static type apparatus over the temperature range from 233.15 K to 375.15 K, together with the vapor pressure of isobutane (HC-600a) measured in the temperature range from 275.60 K to 343.16 K for verifying the experimental apparatus. The measured vapor pressure data and those reported by other investiga...

Zhao, X. and Yang, S., 2018. The asymmetric synthesis of furanoseterterpene from marine natural products. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 386–391. Coconut Creek (Florida), ISSN 0749-0208.In this paper, the asymmetric synthesis of furanoseterterpene from marine natural products is studied. In the stereo selective synthesis of 16-deacetoxy-scalarafuran, (+) -scalarolid and the analogues of both, scalareol is as starting material and by eight steps reaction, methyl ent-isocopalate is synthetized; in the synthesis of sesterstatins 4/5 and scalarafuran, methyl ent-isocopalate is as the intermediate, to complete the stereoinversion hydroxyl. The key intermediate, III-25, is obtained by Wittig reaction, and the halogenated furan ring is introduced. The intramolecular reductive Heck reaction is as the key step, to get the natural product sesterstatins 4/5 and scalarafuran; in the synthesis of sesterterpene compounds with furan ring, compound II-16 is as the substrate, and the intermediate IV12 and IV13 can be obtained by four steps reaction; the epoxy compounds are obtained by double bond epoxidation. Experiments show that this method is very versatile and greatly improves the development accuracy of marine products.

Wang, S.; Liu, D., and Wang, Z., 2018. The stability and reliability of the marine anchor rock mass under wave action. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 6–11. Coconut Creek (Florida), ISSN 0749-0208.At present, most of the stability and reliability analysis of the coastal and anchor rocks is based on the genetic algorithm, while there is a problem that the efficiency of analysis is low. In this paper, a steady and reliability analysis method based on the wave action of the equivalent plastic strain is proposed. Firstly, the analysis model is established, and the uniform design method, radial basis neural network technology and maximum entropy principle are combined on this basis to complete the stability and reliability analysis. Experiments show that compared with traditional method, the error between the ultimate bearing capacity and the actual ultimate bearing capacity of the method in this paper is smaller, the stability and reliability analysis of the anchorage rock solid with different water content is more accurate and the effect is better.

You, L.; You, L.; Hu, N.; Yang, L.; Sun, Y., and Song, J., 2018. Influence of straw incineration sediments on heavy metal accumulation in marine organisms. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 375–379. Coconut Creek (Florida), ISSN 0749-0208. With the development of economy and the progress of agricultural science and technology, the demand of straw as a domestic fuel has been greatly reduced, resulting in the phenomenon of straw burning becoming more and more serious, which brings many problems, such as air pollution, fire, and the aircraft cannot take off normally. In addition, the residue after straw incineration contains a large number of toxic and harmful substances, but people are notcare for it. Some are buried on the spot, which destroying the soil structure and causing a decline in the quality of the farmland; some othersare dumping into the sea, and form the straw incineration sediment...

Huang, Y., 2020. International trade development and supply chain optimization of marine resources. In: Al-Tarawneh, O. and Megahed, A. (eds.), Recent Developments of Port, Marine, and Ocean Engineering. Journal of Coastal Research, Special Issue No. 110, pp. 183–187. Coconut Creek (Florida), ISSN 0749-0208.This paper attempts to study the international trade development and the supply chains optimization of marine resources. To this end, it first describes the characteristics of the supply chain and the structure of China's marine resources supply chain, and then analyzes the current status of China's marine resources production and international trade. Finally, the realistic dilemma of international trade and supply chain management of China's marine resources industry were summarized, and optimization solutions were given. The study found that the supply chain has three characteristics of network structure, consumers-drive, and value-added chain, and the current industrial supply chain is not conducive to industrial development; China's marine resource output has increased year by year, of which the output of marine aquaculture has increased year by year, while that of marine fishing output showed a downward trend; China's exporting countries and regions of marine resource are mainly Japan, the United States, ASEAN, the European Union, Taiwan Province, South Korea, and Hong Kong, and the importing ones are mainly Russia, the United States, Peru, ASEAN, Indonesia, Vietnam, and Canada; there are certain problems in the development of international trade and optimization of the industrial chain, which can be optimized by building a new type of marine resource industrial supply chain and strengthening government support. The research findings play a significant role in promoting the development of China's international trade and optimization of the industrial chain for the marine resources.

Huang, P. and Yao, C., 2018. Diversification business performance evaluation of shipping industry in China. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 802–806. Coconut Creek (Florida), ISSN 0749-0208.International trade is the economic key of a nation, and shipping is an inevitable factor in international trade that shipping industry presents a critical role in international trade. The diversification development of shipping companies is related to the success of a shipping company, which connects shipping service for one-stop service to reveal the importance of shipping diversification. Moreover, global shipping market is closely related to global economy. Under the globalization of international trade, the correlation between China economy and global economy is worth discussion. For this reason, it is necessary to discuss the diversification business performance of shipping industry in China.DEA is applied in this study to evaluate diversification business performance of shipping industry in China. With the calculation of Modified Delphi Method, inputs/outputs which could measure diversification business performance of shipping industry in China are selected. The efficiency evaluation results, through DEA, show that 1 DMU presents strong business efficiency, 4 DMUs are marginal inefficient, with the business efficiency in 0.9-1, and 5 DMUs are obvious inefficient, with the diversification business efficiency lower than 0.9. From Slack Variable Analysis, the excessive shipping companies in China and the improvement direction for short inputs are realized. Finally, suggestions, according to the results, are proposed, expecting that a shipping business could spread the risk of single industry operation through proper diversification and improve the operation performance.

Wang, W.; Huang, L., and Zhang, X., 2018. Optimization of maritime emergency materials allocation based on network reliability. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 691–696. Coconut Creek (Florida), ISSN 0749-0208. A scientific allocation of maritime emergency materials is the groundwork for an early realization of maritime emergency logistics. This paper sets out to put forward a definition and measure approach for the network reliability of maritime emergency logistics in consideration of its connotation and influencing factors, and to build, with “minimum amount of goods in short” and “minimum transportation costs” as its goals, a multi-objective optimization model for maritime emergency materials allocation and put in use the planning means for solutions. Results from case-calculation with the help of LINDO software shows that the allocation plan generated by the multi-objective model can li...

Han, C.; Zhang, X.; Li, L.; Chen, S.; Yan, Z.; Gao, X., and Chang, J., 2018. Analysis and evaluation of tetrodotoxin in coastal aquatic products of Zhejiang Province. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 380–385. Coconut Creek (Florida), ISSN 0749-0208. A total of 306 coastal aquatic products were collected from representative aquaculture area and local markets in Zhoushan, Taizhou and Wenzhou cites of Zhejiang province between 2013 and 2014.Tetrodotoxin (TTX) content in edibletissue was analyzed by means of the ultrahigh performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) in multiple reactions monitoring mode. In May, detection rate reached its peak in Zhoushan (8.33%) and Wenzhou (13.3%) cities, while a maximum detection rate of 33.3% in Taizhou city was found until June.Out of the captured and processed aquatic products, puffer fish (Lagocephalus gloveri), horseshoe crab (...

Chen, C.; Chiang, Z.; Hsieh, M., and Zeng, X., 2018. Applying the data envelopment analysis to discuss performance evaluation of customer relationship management in shipping industry. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 833–838. Coconut Creek (Florida), ISSN 0749-0208. Along with frequent global trading, trade between countries becomes popular. Import/export trade also relies on shipping that it is an important issue to maintain good customer relationship and interaction to enhance stable customer sources and promote company performance in shipping industry. To maintain highly competitive advantages, price differentiation, concentration strategies, and low shipping expenses could attract new customers, consolidate old customers, and satisfy customer needs with professional knowledge to reinforce customer relationship management, i.e. the possession of competitive advantages. Data Envelopment An...

Han, Z.; Wang, C.; Hu, S., and Wang, Y., 2018. Application of borehole camera technology in fractured rock mass investigation of a submarine tunnel. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 609–614. Coconut Creek (Florida), ISSN 0749-0208. Borehole camera technology can penetrate into the inner part of the rock mass, observe the characteristics of the fracture, measure the data of the fracture geometric parameters, and a reasonable statistical method is the key to analysis of structural characteristics of fractured rock mass. Based on the observation results of digital borehole camera technology, the principle and method of calculating the fracture parameters from borehole images are described. Taking the Qingdao Jiaozhou Bay Subsea Tunnel Drilling ZK3 as an example, the structure information revealed by borehole is obtained by borehole camera. The statistical analysis of geometry parameters is stud...

Peng, H.; Gao, R.; Song, X., and Shen, Q., 2018. An automatic decentralized control method for low voltage power for ship's shore power. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 851–855. Coconut Creek (Florida), ISSN 0749-0208.Current electrical control methods of ship's shore power can not disperse the electrical distribution and have the problems of poor transport stability, low electrical utilization and long time of electrical transmission. Based on the condition of ship's shore power with low voltage, an automatic decentralized control method is proposed. By determining the maximum and minimum of the required electrical value, it can disperse the electrical accurately, reduce the time of electrical transmission, and improve the electrical utilization. Each closed loop system in the ship's shore power is controlled, to make the index to stabilization, and improve the stability of electrical dispersion. The experimental results show that the method has high dispersive stability, high electrical utilization and short electrical transmission time.