Optimization of Maritime Emergency Materials Allocation Based on Network Reliability

It is often difficult to apply existing waste load allocation (WLA) models to management institutions at all levels of the river basin because the existing WLA models do not consider the principles of fairness and efficiency at each management level of the basin. The implementation of environmental protection tax law has also greatly impacted WLA. This paper proposes the bi-level multiobjective allocation model under an environmental protection tax law to solve the WLA problem for different management levels. The upper allocation targets the minimal environmental Gini coefficient and the minimal unit pollutant emission cost. The impact of the environmental protection tax is also considered. The targets of the lower-level allocation are the maximal industrial output value and the minimal unevenness of reduction rates. The proposed model was applied to the case of the Wei River basin, and the results demonstrated that the bi-level multiobjective allocation model could solve the problem of WLA under an environmental protection tax law. Each level of the bi-level multiobjective allocation model considers the principles of fairness and efficiency to distribute the load in the basin, thereby offering a better reference for decision-makers at both levels.

Optimal water utilization and allocation in industrial sectors based on water footprint accounting in Dalian City, China

Multi-scale modeling for irrigation water and cropland resources allocation considering uncertainties in water supply and demand

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.

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 ...

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 (...

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.

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.

Lian, Y., 2018. Innovative design of marine resources database system based on fuzzy cluster analysis. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 662–667. Coconut Creek (Florida), ISSN 0749-0208.Traditional marine resources database system has performance issue in aspects of CPU, memory, index, therefore, this paper proposes a kind of innovation design method of marine resources database system based on fuzzy clustering analysis. Firstly, on the basis of collecting the marine capture yield over the years, the statistical information of fishing effort data, the biological parameter of main commercial fish and the research literature bibliography of fishery resources, we sort out and add data, and build the innovative database of marine resources, and then use the fuzzy clustering analysis method to realize the function of data processing and analysis. Finally, we use basic language programming to give the software flow chart of system. Experimental result shows that the performance of the proposed method is greatly improved in terms of query response efficiency, actual data warehousing efficiency, and data analysis performance.

Cheng, Z., 2018. Thermal characteristics of aluminum conductor composite core. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 356–358. Coconut Creek (Florida), ISSN 0749-0208.In this paper, the thermal characteristics of aluminum conductor composite core (ACCC) are studied with the example of ACCC315/40 conductor.The simulation software is used to simulate the relationship between the temperature and the temperature of the conductor under the condition of ACCC, and the influence of the wind speed on the surface temperature of the wire. The results show that with the increasing of numerical operation line current, wire surface temperature will increase, when the environment temperature changes, the temperature of wire will change the wind speed in the range of 0–1m/s, the wire surface temperature drop more largely, as the wind speed increases, the wire surface temperature drops greatly. The research of this paper provides the basis for the real-time monitoring of the conductor.

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...