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Altering the marine industry economic development model has helped achieve low-carbon development goals for comparative research on the spatio-temporal evolutionary characteristics of carbon emissions and carbon sinks. The carbon emissions and existing carbon sinks resulting from the marine industry in ten coastal provinces (cities) in China over the period from 2008 to 2019 were quantitatively determined, and their spatio-temporal evolutionary characteristics were analysed from the national and provincial perspectives. Additionally, time-dependent models of the national and provincial carbon emissions and carbon sinks were constructed. The results showed that: 1) carbon emissions and carbon sinks of the marine industry in China increased annually from 2008 to 2019, and the growth rate of carbon emissions was higher than that of carbon sinks. 2) Direct, indirect and total carbon emissions, as well as shellfish, algae and total carbon sinks of the marine industry in China all conform with time to the power function leading to the estimation that total carbon emissions and carbon sinks of the Chinese marine industry will peak in 2021 and 2022, respectively. 3) The carbon emissions and sinks in different provinces (cities) were affected by multiple factors according to their time-dependent models. These findings could provide a reference for accelerating energy conservation and emission reduction within fisheries, while also improving the ecological functioning of their carbon sinks. Meanwhile, the role of marine policy in the development of the marine industry in China's coastal regions has also been clarified.

In the strategy of marine economic development, the maritime sector plays an important role, in which seaports are the nucleus of development, the focal point for receiving and transporting import and export goods and circulating to all regions of the country. Shipping now accounts for 90% of the volume of imports and exports and part of the goods to regions, the main artery in the system of transportation and distribution of goods of the economy. The maritime industry and the world are developing and developing both in terms of quality, quality and modernity. Special welds between the various types of materials always have a number of problems that need to be addressed in order to improve the quality of welding and the life of the equipment. This paper presents and classifies the materials used in the maritime industry.

The welding process is widely used for boat building, but the process for aluminum (base metal) is affected by the welding heat may affect the mechanical properties of the joint. The objective of this study was to evaluate the effect of different annealing times of welded joints of naval aluminum 5052 by MIG. The thermal annealing treatments were 30 and 60 min. at 300 °C. For the evaluation of the influence of different times of annealing on the properties were carried out tensile, hardness and their microstructures observed by optical microscopy. The heat treatment using 30 min. at 300 °C got higher mechanical property. The tensile test showed a higher value for the treatment 30 min. The microhardness showed a higher value for the weld pool of treatment 30 minu.. Microscopic analysis showed microstructural changes after annealing.

Although composite materials are now used throughout the marine industry their susceptibility to impact events is still an unresolved problem. The complex nature of the problem in terms of the distinct material and impact event parameters specific to marine applications, damage tolerance and durability has been discussed in parts I, II and III of this review. Here, work addressing marine composite impact scaling and strain-rate effects, and impact studies not explicitly concerning marine applications yet considering laminates typical of the marine industry have been reviewed. Together with parts I, II and III, this paper gives a comprehensive review of ‘marine impact on marine composites’, providing a valuable resource for the marine industry and research fields.

This article seeks to analyze the factors constraining the development of strategic marine emerging industries and the deficiencies in China’s strategic marine emerging industry development policies. Learn from the successful experiences of overseas strategic marine emerging industry development policies. We will study and construct a policy framework for the development of strategic marine emerging industries in the new era, guided by the scientific concept of development and enhanced by the capacity of independent innovation. Provide policy recommendations for actively promoting the development of strategic marine emerging industries. At the same time, it provides theoretical and methodological reference for the formulation and implementation of China’s strategic marine emerging industry policies. On the basis of reviewing relevant theories of industrial policy, this article first defines China’s strategic emerging industries and clarifies the connotation of China’s strategic marine emerging industry development policies. Then, the paper conducts detailed analysis on the development policies of strategic marine emerging industries at home and abroad, and summarizes the experience of overseas strategic development policies for marine emerging industries. Finally, combining the above-mentioned comprehensive analysis, with the guidance of the scientific concept of development, the development strategy and concrete development policy of China’s strategic emerging industries in the ocean are proposed.

The object of research are the enterprises of ship industry (cargo ports, berth places, ship-repair and shipbuilding plants, processing plants of fish raw materials). Analysis of amount of power consumption by the enterprises of ship infrastructure, problem of plunder of electric energy by unauthorized intervention in normal operation of metering devices is provided in article (including normal operation of metering stations - current transformers, voltage transformers) or avoiding metering instruments of electric energy. Such concepts as technical and commercial losses of electrical networks have been formulated. The effectiveness of the taken measures with each type of the specified losses has been considered. General methods of identification of unauthorized intervention in operation of metering instruments of electric energy are considered: method of external visual examination of the electric counter and metrological method by using the control and measuring equipment. Taking measurements by control equipment, it is necessary to pay special attention to consuming electric energy by the metering instruments. The working principle of a circuit which isn't provided by the manufacturer and is lowering readings of the consumed electric power is schematically presented. According to the achievements of improvement of technical means of accounting electric energy there has been offered a relevant and effective way of fight against plunder of electric energy: starting mass production of electric meters with a cast casing and a built-in anti-magnetic indicator. At the same time, the importance of setting the high quality components into the metering instruments at the manufacturing plant is emphasized.

Despite of laminate or sandwich composite materials structure, mechanical behavior can estimate by methods or analytical relations like laminates classical theory according factors just like mechanical properties, fiber percentage, and product methods and etc. but generally these estimates are far from experimental results. This paper investigates about influence of product methods and different cores on buckling and post buckling behaviors of sandwich panels. Each panel was built by to quit different product method, hand layup or vacuum bag infusion procedure with different core. To build the panels an effort had made to choice materials which have usage in marine industry, special for high speed boats. Sandwich panels have 150×450 mm2 dimensions and one simply support and one clamed support. After tests, numerical models results which drive from finite element software are compared with experimental data. The results represent that combined model is suitable for simulate buckling and post buckling behavior. After chosen the software model, different parameters were evaluated whom the link element has the most efficacy on numerical results.

Composite materials are now used throughout the marine industry but their susceptibility to impact events is still an unresolved problem. The complex nature of the problem in terms of the distinct material and impact event parameters specific to marine applications has been discussed in parts I & II. Tolerance to impact damage is very often of greater concern than resistance to a catastrophic failure and hence the compression, flexural and other loading tolerance of marine composites to impact is reviewed here. Since in-service impacts will occur in the aggressive marine environment, studies on water absorption, temperature and repeated impact effects have also been discussed. Together with parts II and III, this paper gives a comprehensive review of ‘marine impact on marine composites’, providing a valuable resource for the marine industry and research fields.

Composite materials are now used throughout the marine industry but their susceptibility to impact events is still an unresolved problem. There is a huge body of work in the area, succinctly summarised here, but the great majority concerns impact events and composite materials more relevant to the aeronautical industry . A discussion of the complexity of the problem in terms of damage and dependence on the many material and impact event parameters shows why there is a need for a review of work specifically considering ‘impact on marine composites’ due to the distinctive impact events and materials of marine applications. Marine impact scenarios are discussed and comparisons between composite and other construction methods made. Together with parts II and III, this paper gives a comprehensive review of ‘marine impact on marine composites’, providing a valuable resource for the marine industry and research fields.

Composite materials are now used throughout the marine industry but their susceptibility to impact events is still an unresolved problem. The complex dependence of the impact behaviour and damage on the many material and impact event parameters discussed in part I means that impact testing must simulate the particular in-service case well. Hence, typical impact damage modes have been outlined for both monolithic and sandwich marine laminates, and the influence of impact indentor and target, and of material reinforcement, matrix, core and production process on impact behaviour are discussed. Together with parts I and III, this paper gives a comprehensive review of ‘marine impact on marine composites’, providing a valuable resource for the marine industry and research fields.

Maritime safety is of paramount significance for marine industry since the maritime accidents may adversely affect the human, cargos, ships and the marine environment in various forms and degree of extent. The study aims to identify potential causal relationships among the many factors that play a role in maritime accidents. Correspondingly, association rule learning is selected as analysis approach, because of its utility in obtaining association rules through data mining on maritime accidents data. Based on the analysis of association rule learning, this study designs the association rules learning procedure of maritime accidents and establishes the association rule learning model of maritime accidents. The novelty of this study is to present a different perspective during maritime accident analysis in which potential causal relationships among the many factors are revealed. Association rule learning of maritime accidents data is carried out based on the Apriori algorithm, and the strong association rules among the causal factors of the accident are generated. The study then analyzed the generated strong association rules to find the potential relationship among the causal factors, and puts forward the coping strategies to prevent similar maritime accidents occurrence.

Shandong Province is among China's major marine provinces. The annual total output value of the province's marine economy has been ranked second in the country since 2013. This paper presents an evaluation of the marine district policies of Shandong Province. These policies can be divided into three stages according to the time sequence of policy promulgation: the fishery production and resource management period, the marine integrated utilization management period, and the marine ecological management period. The evolution of Shandong's marine policies was analyzed accordingly. Overall, the regional marine industry is on a good development track. However, many challenges remain regarding the formulation and implementation of the province's marine policies in the future.

In response to the intense development of the marine industry around the world, marine industrial parks are increasingly being established in coastal areas. To more effectively ensure the sustainable development of these industrial parks, an indicator system must be constructed to evaluate their sustainability. Therefore, a sustainability indicator system based on the driver-pressure-state-impact-response (DPSIR) framework was developed in this study and used to evaluate the sustainability of Shishi Marine Biotechnology Park, Fujian Province, China, between 2013 and 2016. Both the analytic hierarchy process (AHP) and the entropy method were used to calculate the weights of the indices, and the indicator variables and evaluation models were uniformly transformed to obtain normalized sustainability scores. During the initial development of Shishi Marine Biotechnology Park, excessive exploitation caused serious environmental problems that hindered sustainable development, and the park reached its lowest pressure index score (3.097) in 2015. After park managers, governments, and enterprises implemented some sustainability measures, which are heavily weighted in the calculation of the five indices in this indicator system, the comprehensive sustainability score for this park increased significantly, reaching its highest value of 6.173 in 2016.

Offshore platforms have had diverse applications in the marine industry, for example, oil or gas platforms can provide facilities to store the oil and gas before transport those to refineries. Offshore wind turbines are another well-known use of the offshore platform for generating power. As platforms encounter various strong forces from water and wind currents, the materials used for these structures are mainly steel or concrete. These platforms are classified into different types, according to the depth of water and their applications. In addition, offshore platforms, as artificial reefs may be used for decades at different marine conditions. Consequently, their design and maintenance are very important, otherwise, they can cause irreparable damage to the environment. This paper presents the latest and most significant design and monitoring methods, such as the optimal probabilistic seismic demand model, multi-objective optimization, dynamic response assessment, robust fault-tolerant control, etc., under different environmental and geographical conditions. Moreover, the effective factors on the life and failure of these offshore structures are comprehensively introduced to enhance awareness of them, which can be very helpful to improve the design and construction of more reliable and durable structures.

Regulations on emission control of sulfur oxides (SOx) contained in exhaust gas (EG) from ships’ engines enter into force. In the recent past, emission control regulations have continually been made more stringent. Consequently, there is an urgent need for novel emission abatement technologies for ship operators, to satisfy the regulations. The objective of this study was to investigate a novel design of a wet SOx scrubber prepared for compliance with the new regulations and to identify the key parameters affecting the SOx removal efficiency and design optimization. The model of wet SOx scrubber system was developed and validated using actual experimental results. On the basis of a parametric analysis, a design for an open-loop mode involving the cooling of the EG inlet temperature via an EG inlet/wash water heat exchanger is proposed. Design optimization results showed that the liquid-to-gas (L/G) ratio and EG inlet temperature could be adjusted to reduce the required power of a seawater (SW) pump by 31.72% and 51.17% for an open-loop system operated inside and outside designated emission control areas, respectively. For a closed-loop system, the adjustment of the L/G ratio, circulating wash water’s (WW’s) temperature, and chemical dosing flow rate reduced the amount of dose input and required power of the SW pump and circulating WW pump by 11%, 66%, and 49%, respectively.

The current emphasis of China's emerging marine industry on scale instead of innovation has formed a "vicious environmental-economic circle". Based on the panel data of China's emerging marine enterprises from 2013 to 2018, the fixed-effects model was used in this study to test the environmental regulation impact on technological innovation of emerging marine enterprises and the moderating effect of government grants on the relationship among technological innovation and environmental regulation of emerging marine enterprises, and a further analysis from the aspect of ownership heterogeneity was conducted. The research results show that there is an important optimistic correlation among technological innovation and environmental regulation of emerging marine enterprises. Government grants negatively affect the relationship among them, and the negative regulatory effect is significant on non-state-owned enterprises.

Optimizing the allocation of science and technology resources is the key link to promote the efficient development of marine industry. This paper incorporates science and technology, economy and ecology into the accounting system for the allocation of marine science and technology resources, constructs the EBM model that considers the undesired output, and uses the GML index to reveal the spatiotemporal dynamic evolution of the allocation efficiency of green science and technology resources in China’s marine industry. The results indicate that: (1) Under the constraints of resources and environment, the allocation of science and technology resources in China’s marine industry is at the non-frontier level. (2) The allocation efficiency of green marine science and technology resources shows an “M-shaped” dynamic trend, and this trend of change is closely related to the marine science and technology policy. The improvement of the allocation efficiency of green marine science and technology resources mainly comes from technological progress rather than the improvement of technical efficiency. (3) There are obvious differences in the allocation efficiency of green marine science and technology resources among coastal regions. Among them, Liaoning, Shanghai, Guangdong and Guangxi are in the high efficiency range (>1), Tianjin, Shandong, Jiangsu, Zhejiang, and Fujian are in the medium efficiency range (0.9–1), while Hainan and Hebei are in the low efficiency range (

All technological changes follow certain predictable patterns typically referred to as Kondratiev (often spelled as “Kondratieff”) waves or cycles, named after the Russian economist Nikolai Dmitriyevich Kondratiev (1892-1938). It is generally acknowledged that these cycles typically last approximately 50 years for the world economy at large. More accuratetiming, however, is not always easy to predict, and there is also a question regarding if it is the technological changes that cause the Kondratieff cycles or the economy that drives technological changes. Although there is no universally accepted precise description of these waves and how they work, most tend to agree that it is technology that drive these cycles. It was van Gelderen and Schumpeter that first saw technological change in a wide sense as a driver of these waves.

Liquefied Natural Gas (LNG) is a clean, efficient and economic energy, which is mainly transported by LNG carriers in the marine industry. Possible spilling of cryogenic LNG puts safety of crew in danger due to fire and explosion hazards. Taking into account various uncertainties, a modified fault tree model for LNG spill accident during LNG carriers’ handling operations is constructed in this study. Human factor analysis is introduced with a goal to predict human errors in LNG carriers’ handling operation. Finally, the results of the Fault Tree Analysis (FTA) and Human Reliability Analysis (HRA) are combined, so that risks can be assessed using Monte Carlo Simulation (MCS). Comparing the results of risk assessment with the traditional FTA and corresponding criterion set, an important reference for LNG carrier management is provided for administration.

Our global oceans are threatened by climate change, overfishing, pollution and a growing list of other impacts that demonstrate an urgent global need for sustainable ocean management. Whilst marine conservation initiatives and protected ocean spaces have increased over recent years, ocean management still lags behind the terrestrial sectors in incorporating and involving communities in its development. ‘Social licence to operate’ is used broadly across the terrestrial literature, but its understanding and application within the marine has been limited to date. This review sought to collate and synthesise instances of social licence in the marine realm as documented in the literature, aiming to create an understanding that may inform future research and development of social licence. Its results determine that social licence is yet an emergent concept in the marine sector but there may be great potential for its application in the marine context. Social licence has become an important theme for development in marine industry and resource use, particularly towards exploring communication and stakeholder engagement. This paper identifies future themes and areas requiring investigation and application in this domain.

Marine structures developed for marine industry and resource manifests different fluid characteristics. As such, the changes in the location, shape and size of these structures affect the fluid flow. Specifically, this wake flow caused by the structures result in environmental damage and topographical change. but on the other hand, protects harbor facility and environment. This study was conducted by changing the position of vertical plate in horizontal and vertical direction and experimented the variation of wake flow by PIV. This experiment confirmed the wake flow reduction by the changes of gab in horizontal and vertical direction. Particularly, the experiment showed that changes of gab in horizontal and vertical direction resulted in an increased u-velocity fields in the back of structure for larger horizontal gab.

PT. Lamongan Marine Industry is a manufacturing company that produce large ships. The company have contracts with four suppliers of iron plate. In cooperation with these suppliers, they unable to meet the quality standards for iron plate is a measure of the thickness of the thick 45 mm. Material defects from suppliers thickness is less the limit set by the company is 0,3 mm – 0,5 mm. Process evaluation of the suppliers performed to look for suppliers that meet the criteria of the company. In this study, supplier evaluation process is carried out using Analytical Hierarchy Process (AHP) and Taguchi Loss Function (TLF). AHP for wighting each of criterian, while TLF for calculating loss function each of supplier. Criterian of the supplier evaluation are price, quality, delivery, underweight, availability, payment system, guarantee policy and repair service, with wight for each criterion are 6%, 6%, 8%, 15%, 17%, 13%, 8% and 26%. The results showed that the best supplier that meets the company criteria is a supplier PT. Biz Fitting with loss Rp. 1.140.973.

In the paper, new trends in the development of microchannel heat exchangers are presented. The exchangers developed in this way can be applied in marine industry. Main attention is focused on heat exchanger design with reduced size of passages, namely based on microchannels. In authors′ opinion, future development of high power heat exchangers will be based on networks of micro heat exchangers.

This paper employs a practice perspective to study and conceptualize supplier-switching processes in business relationships. It is based on case study research of a company in the international marine industry, which intended to switch one of its key suppliers for a new one as a result of cost-cutting strategies and dissatisfaction with the old supplier. The case study describes the process, which ended with the old supplier being only partially switched. The findings show how (partial) switching from one supplier to another happened via three key sub-processes and associated practices, which the involved actors in the case drew upon in the switching process: (1) initiation – a process enabled by legitimizing and search practices; (2) substitution – a process enabled by transfer, translation, and transformation practices; and (3a) stabilization – a process enabled by institutionalizing practices; and (3b) restoration – a process whereby the old supplier is retained as a result of new conditions, this retention being enabled by certain repair practices. By identifying the processes and practices that enable switching to happen, the findings offer an initial conceptualization of supplier-switching processes, which comprises an important and heretofore underexplored aspect of supplier switching. The research highlights the importance of recognizing how relationships embedded in interorganizational routines are produced and reproduced in the switching process through the actions and interactions of the actors involved., Highlights • Conceptualizing supplier-switching processes in business relationships. • A practice perspective. • Case study research. • Supplier-switching entails producing and reproducing interorganizational routines.

The Industrial Revolution 4.0 has been discussed and debated all around the world. Every country is preparing their strategies to address the Industrial Revolution 4.0. The impact would be more significant than previous industrial revolution. Global economics issue was impacting the marine industry. Unstable oil price creates a substantial impact on country and industries that depend on oil price. In last decade, the marine industry scaled down due to the oil crisis and the oil and gas industry also facing the same problem. In this paper, a brief preparation of existing marine industry status was discussed. A recommendation for the way ahead in Shipbuilding and Ship Repair (SBSR) to confront the revolution was proposed.

With the continuous construction and development of China’s marine industry, the protection of marine rights has become a crucial issue. Usually, the knowledge of maritime law is oriented to legal practitioners, and the general public does not know much about it. Most of the persons responsible for maritime cases are mainly due to their weak legal consciousness and lack of understanding of marine laws. Therefore, it is very important to develop a knowledge assistant software which can popularize marine law to reduce the probability of illegal cases. With the help of abundant maritime judgment cases and relevant professional knowledge on the Internet, this paper will design and develop a maritime legal knowledge assistant software built on Android platform. It can not only provide timely, convenient, accurate and abundant information services for the vast number of maritime practitioners and functional departments such as maritime courts through advanced mobile service mode, it can also promote the reform of maritime judgment system.

International audience; Composite materials have vast range of engineering applications because of their outstanding mechanical performance, low density and cost effectiveness. Marine industry and naval structures are one of the applications where composites are gaining importance rapidly however, there are confronted with extreme environmental conditions in addition mechanical behaviour. Therefore, it is important to comprehend the behaviour of these materials not only under mechanical loads but also under environmental effects. For that reason, the objective of this paper is to study the effects of hygrothermal aging phenomenon on the behaviour of adhesively bonded composite joints at high strain rates. Dynamic compressive properties and microstructural damage progression is analysed utilizing the Split Hopkinson Pressure Bars (SHPB) technique. The stress-strain behaviour of composite specimens subjected to severe hygrothermal conditions have been studied at high strain rates ranging from 445 to 1240 s−1. In addition, Keyence and scanning electron microscopic (SEM) is used to study the significant damage modes. The results indicated change in dynamic properties and damage behaviour because of the environmental effects.

In recent years, there has become a growing need for the development of antifouling technology for application in the marine environment. The accumulation of large quantities of biomass on these surfaces cause substantial economic burdens within the marine industry, or adversely impact the performance of sensor technologies. Here, we present a study of transparent coatings with potential for applications on sensors or devices with optical windows. The focus of the study is on the abundance and diversity of biofouling organisms that accumulate on glass panels coated with novel transparent or opaque organically modified silicate (ORMOSIL) coatings. The diatom assessment was used to determine the effectiveness of the coatings against biofouling. Test panels were deployed in a marine environment in Galway Bay for durations of nine and thirteen months to examine differences in biofilm formation in both microfouling and macrofouling conditions. The most effective coating is one which consists of precursor, tetraethyl orthosilicate (HC006) that has a water contact angle &gt, 100, without significant roughness (43.52 nm). However, improved roughness and wettability of a second coating, diethoxydimethylsilane (DMDEOS), showed real promise in relation to macrofouling reduction.

Abrasive blasting is one of application that widely use in marine industry. This process is expected would release dust that believe can be harmful to human health such as cause of chronic obstructive pulmonary disease (COPD). In Malaysia, Ministry of Health report that the deadliness of COPD for men in Malaysia peaks at age 80 and above. COPD start kills men at the lowest rate at age 10-14. This study to determine the dust released from abrasive blasting in cleaning process and effect to human worker. This experiment was conducted using establish method which is NIOSH 0500 and NIOSH 0600 for exposure monitoring process. Sample from exposure monitoring process were analysis using XRD for determine the composition of dust release from abrasive blasting activity. Result from study show that level of exposure to dust release from abrasive blasting activity are exceed from the limit under Occupational Safety and Health (USECHH) Regulations 2000. Silica dioxide and other hazardous composition found under XRD testing

Nowadays composite propellers are not widely used in the naval and military standards. Yet, profitable consequences could flow from it: weight saving, acoustic radiation reduction, reduced energy consumption, better hydrodynamic performance or an easier maintenance. The research branch of Naval Group, committed to the research project FabHeli, spent the past two years towards investigating these possibilities. FabHeli is a collaborative project partly funded by the French department of Defence (DGA) involving two other companies: Loiretech and Meca. It aims to design, manufacture and test in real conditions a propeller in composite materials. The objectives of this paper are to present technological developments in order to assess a composite materials propeller design and its validation by sea trials.

The marine economy, as an important driving force for economic development in coastal countries and regions, is now generally accepted by the academic world. This article examines the economic impact of the marine industry on China&rsquo, s coastal provinces and cities and focuses on the narrowing development gap the marine industry faces in the coastal provinces and cities to promote the coordinated development of China&rsquo, s coastal zone. It will further analyze the spatial and temporal differentiation of the marine industry along with what has driven China&rsquo, s regional economic growth from 2006 to 2015. The research has proven that the marine economy certainly has a tremendous impact on provincial economic growth in coastal provinces (cities) and that even its degree of promotion is different in different cities. Further findings state that the contribution rate of the marine economy to the provincial economy in Tianjin, Shanghai, Fujian, Shandong, Guangdong, and Hainan is higher than the national average rate. Related findings are conducive to gain a better understanding of how development can be balanced and what best scientific decision-making practices can be utilized by policy-makers and planners in China.

Biofouling is detrimental and has been a major concern in the marine industry for several decades. This phenomenon is the accumulation, colonization and attack of organisms—which are both micro and macro, to assemblies, parts and/or structures that are submerged in freshwater and other marine environments. Even despite all the exceptional indispensable and indisputable characteristics of alloys such as steel, biofouling continues to be a major source of failures of these alloys, thereby limiting their use in service. This study presents a review of the existing means of protection against biofouling which are basically the use of paints and electrolytic deposition of anti-biofouling agents such as some nano-composite coatings. The different types of systems from the first-generational coatings such as tributyltin self-polishing copolymer paints to the novel nano-composite coatings were discussed. Ultimately, the use of nano-materials and composites consisting some anti-biofouling natural products has identified to be a promising way of combating biofouling issues in the maritime.

Corrosion and biofouling are two common unsolved problems in the marine industry, urging the need of innovative solutions to tackle both problems simultaneously. Herein, the fabrication of multifunctional microcapsules containing 8-hydroxyquinoline (8-HQ)as the corrosion inhibitors and clove oil as the natural antimicrobial compound is described to resolve both corrosion and biofouling problems simultaneously. Microcapsules containing 8-HQ and clove oil, featuring good mechanical properties, anticorrosion, and antibacterial properties, were successfully synthesized through in-situ polymerization of melamine-formaldehyde polymer. The fabricated microcapsules show antibacterial properties against Escherichia coli, Vibrio coralliilyticus and E. aestuarii, as revealed from the standard ASTM E2315 time-kill test. Multifunctional coatings with both antibacterial and anticorrosion features were fabricated by incorporating the fabricated microcapsules both onto and into the epoxy coatings. According to the zone inhibition test, the microcapsules-based multifunctional coating possesses antibacterial properties against the seawater bacteria. Manually scratched microcapsules-based multifunctional coatings possess anticorrosion properties, due to the formation of corrosion inhibition layer resulted from the reaction between the released 8-HQ compound and the mild steel substrate. Additionally, after 30 days of immersion in the salt water, the microcapsules-based coatings still possess anticorrosion properties by forming corrosion inhibition layer at the scratched region. Nanyang Technological University We are grateful to the support partially from the Hong Kong University of Science and Technology (Grant #: R9365). Chong acknowledges the research scholarship support from NTU.

cited By 0; International audience; Structral bonding is a very advantageous technique for lots of application fields such as aeronautics or marine industry, which require both advanced performances and lightweight structures. Nonetheless, adhesive joints are often subject to bonding defects: kissing bonds, uneven polymerisation, or pores within the material, for instance. These pores, depending on their sizes and distributions, could jeopardise the mechanical strength of the assembly. Moreover, it is legitimate to hypothesise that these voids in the medium could be influenced by the application of a mechanical stress. In order to investigate this assertion, bonded samples are loaded by various tensile stress levels, and the pores within the joint are visualised and characterised using in-situ X-ray microtomography. This paper deals with the evolutions of various quantities such as the number of pores or their volumetric ratio along with the increasing load and with the diverse phenomena (nucleation, growth, coalescence, etc.) experienced during the testings. These results are extracted from the microtomographic data using a custom processing tool, whose parameters and performances are discussed.