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Coral aggregate seawater concrete (CASC) is a new type of lightweight aggregate concrete that is becoming widely used in reef engineering. To investigate the corrosion behavior of different kinds of rebar in CASC exposed to simulated seawater for 0-270 d, the electrochemical techniques, including linear polarization resistance (LPR) technique and the electrochemical impedance spectroscopy (EIS), were used in the present work.

The electrochemical techniques, including LPR technique and the EIS, were used in the present work.

Based on the time-varying law of linear polarization curves, self-corrosion potential (E_corr), polarization resistance (R_p), corrosion current density (I_corr), corrosion rate (i), and the characteristics of EIS diagrams for different types of rebar in CASC, it can be found that the anti-corrosion property of them can be ranked as epoxy resin coated steel > 2205 duplex stainless steel (2205S) > 316 L stainless steel (316 L) > organic coated steel > ordinary steel. Additionally, the linear regression equation between R_p and charge transfer resistance (R_ct) was established. Finally, the EIS corrosion standard of rebar was established from the LPR corrosion standard, which provides a direct standard for the EIS technique to determine the condition of rebar in CASC.

The linear regression equation between polarization resistance and charge transfer resistance was established. And the EIS corrosion standard of rebar was established from the LPR corrosion standard, which provides a direct standard for the EIS technique to determine the condition of rebar in CASC.

This paper aims to reduce the cost, limit the time and increase raw material source availability, coral aggregate seawater concrete (CASC) composed of coral, coral sand, seawater and cement can be widely used for the construction of ports, levees, airports and roads to achieve practical engineering values. However, the naturally porous coral structure and abundant Cl⁻ in the seawater and coral lead to extremely severe reinforcement corrosion for CASC. It is well known that Cl⁻ is the main cause of reinforcement corrosion in the marine environment. Therefore, it is necessary to research the reinforcement corrosion of CASC in the marine environment.

In this study, linear polarization resistance was adopted to test the linear polarization curves of reinforcement in CASC with different exposure times. E_corr, R_p, I_corr and V_corr were calculated according to the weak electrochemical polarization theory and Stern–Geary formula. The effects of concrete cover thickness, exposure time, reinforcement types and inhibitor on reinforcement corrosion in CASC were analysed. The reinforcement corrosion degradation rule was determined, which provided theoretical support for the durability improvement, security assessment, service life prediction and service quality control of CASC structures in marine islands and reef engineering.

The corrosion resistance was enhanced with increased concrete cover thickness, and the concrete cover thickness for organic new coated steel should be at least 5.5 cm to reduce the reinforcement corrosion risks in CASC structures. The corrosion resistance of different types of reinforcements followed the rule: 2205 duplex stainless steel > 316 stainless steel > organic new coated steel > zinc-chromium coated steel > common steel. In the early exposure stage, the anti-corrosion effectiveness of the calcium nitrate inhibitor (CN) was superior to that for the amino alcohol inhibitor (AA). With the extension of exposure time, the decreasing rate of anticorrosion effectiveness of CN was higher than that of AA.

Reinforcement corrosion of CASC in a marine environment was studied. Concrete cover thickness, exposure time, reinforcement type and inhibitor influenced the reinforcement corrosion were investigated. New technique of reinforcement anti-corrosion in marine engineering was proposed. Possible applications of CASC in marine engineering structures were suggested.

Massive increases in international trade and investment extend industries beyond national borders, so states and enterprises have become the two critical players in the boundary of industries. The purpose of this paper is to provide a new conceptual framework to analyze the role of states and enterprises in enhancing the industrial international competitiveness (IIC).

Being a research‐based paper, the topic is approached by theoretical analysis and conceptual development. The paper reviews IIC literature and argues for a rational study ICC in the context of global value chain. Next, the paper puts forward a two‐dimensional governance model and five typical governance systems of the industries of developing countries. Examples of typical governance system are given based the practice of Chinese industries, such as appeal, rare earths, automotive, etc.

This paper constructs an industrial two‐dimensional governance model of the developing countries in the context of global value chain based on the interaction between industry governance and market governance, and also presents five typical governance systems – free to market, public governance, industrial governance, joint governance and network governance. Different governance system reflects different roles of states and enterprises played in the global value chains and result in different IIC in the end.

The limitation is based primarily on methodology. The two‐dimensional governance model provides target‐oriented guidance for foresting international competitiveness of different types of industries. Future studies should include more in‐depth case studies on different governance system.

The paper presents a framework of the industrial two‐dimensional governance model, which emphasizes the important role of both states and enterprise in the IIC in the context of global value chain.

Studies which look at disaster affected people’s use of communications technologies often fail to take into account people’s communication rights in their analyses, particularly their right to freedom of expression. The purpose of this paper is to draw attention to this issue by exploring the link between freedom of expression, community participation and disaster risk reduction in the use of digital feedback channels offered by aid and government agencies in the aftermath of Typhoon Haiyan.

Ethnographic fieldwork was undertaken in the Philippines between 2014 and 2015 in Tacloban City and Sabay Island, both in the Visayas, which have been affected by Typhoon Haiyan. A total of 101 in-depth interviews were conducted with affected people, local and national officials, community leaders, civil society groups, telecommunications companies and humanitarian agencies.

The interviews reveal that majority of disaster-affected Filipinos chose not to engage with formal feedback platforms offered by government and aid agencies out of fear of giving critical feedback to those in authority. They were concerned about the possibility of losing their entitlement to aid, of being reprimanded by government officers, and of the threat to their lives and of their loved ones if they expressed criticism to the government’s recovery efforts. Nonetheless, 15 per cent used backchannels while 10 per cent availed of the formal means to express their views about the recovery.

The paper sought to draw links between people’s lack of engagement with the formal feedback mechanisms offered by government and aid agencies in the wake of Haiyan and the restrictive sociopolitical environment in the Philippines. Further research could be undertaken to examine how freedom of expression plays a role in disaster prevention and mitigation. Research into this area could potentially provide concrete steps to help prevent the occurrence of disasters and mitigate their impacts.

Freedom of expression and its place in disaster risk reduction is rarely explored in disaster studies. The paper addresses this oversight by examining the lack of engagement by communities affected by Haiyan with digital feedback channels provided by aid agencies and government. The findings suggest that despite the provisions for community participation in DRR under the Philippine Disaster Law, people are prevented to express criticism and dissent which puts into question the spirit and purpose of the law.

Although half a decade have already passed following the devastation of super typhoon Haiyan in November 2013, limited studies on the status of the seaweed aquaculture industry have been reportedly published, specifically on the gendered differences of the key players in the production activities. The purpose of this empirical research is to present the different characteristics of producers; technology used in farming; gendered differences in labor; sources of propagules; and yield, productivity and income of seaweed farmers in five rural-poor coastal communities in Eastern Samar, the Philippines.

The data were gathered through a combination of fieldworks and desk research and were analyzed using a value chain and gender needs assessment analyses. A four-part, self-made guide questionnaire was used as an instrument. The data were presented and analyzed using thematic analysis.

The results demonstrate that the modified monoline method is the technology used by the seaweed farmers. Propagules are usually supplied for free by the BFAR or bought from neighboring villages. A monthly income of PhP 19,500.00 (US$393.00) can be generated from seaweed farming. Division of labors in most of the seaweed production processes is equally distributed between men and women with help from their boys-and-girls children. Increasing further the number of lines per seaweed grower to at least 25 will enable them to go beyond the poverty threshold, based on 2015 figures of the Philippine Statistics Authority (PSA).

This study provides additional empirical data to substantiate and prove that women’s active involvement in seaweed production provides them an important opportunity to earn some income for themselves and their families and contribute to livelihood and enterprise development in their communities.

This study is helpful in constructing an Industry Development Plan to serve as the Seaweed Industry Road Map for progress, thereby, helping men and women seaweed growers especially in rural-poor coastal areas.

Aside from being conducted in a post-disaster context, the data and recommendations presented in this paper contribute to the body of knowledge that government and non-government institutions, private individuals and groups and the academia could use in understanding the economic, commercial and community development contributions, gaps and constraints in producing seaweed in rural-poor coastal communities.

This paper serves as an in-depth empirical study reflective of the post-disaster, current gendered labor practices, culture, knowledge and attitude of the seaweed producers in the Philippines. More importantly, this study was conducted by a local researcher, thereby reflecting empirical findings and recommendations that are strategic, gender and culture-sensitive and timely and relevant.

Studies have indicated that international innovation collaboration has promoted technology transfer and knowledge spillover between countries. The conclusion of various international intellectual property (IP) treaties has played an essential role in optimizing the international innovation and collaboration environment. This study investigates the effect of IP treaties on international innovation collaboration and whether international IP treaties can promote collaboration between a country and other economies in the world.

After collecting and extracting the patent record data from the United States Patent and Trademark Office (USPTO), a final dataset of 3,213,626 cooperative patents and 465,236 pairs of collaborations between two countries or regions is established. Based on the international patent collaboration data of 192 countries during 1976–2017, the changes in patent collaboration indicators after these countries joined 23 IP treaties are analyzed.

International IP treaties have significantly increased the number of patent cooperation countries of a country and its importance in international cooperation networks. The role of IP treaties is more manifested by the increased opportunities for a country's international innovation cooperation than its influence on global innovation; this is of extreme significance for developing countries to introduce advanced technologies.

Ginarte and Park (1997) have confirmed that IP treaties have helped to raise the level of IP protection. In this study, the increase in the degree centrality of the international innovation network is evidence of IP treaties to promote innovation cooperation. For a developing country, joining an intellectual property treaty may strengthen intellectual property protection and optimize its own international innovation cooperation methods.

The occurrences of natural hazards in Southeast Asia have become not only more frequent but their severity has also intensified. More than 200,000 persons perished from the 2004 tsunami resulting from the 9.1 magnitude earthquake in coastal Sumatra, Indonesia, which was the third strongest since 1900. A record-breaking typhoon internationally named Haiyan (locally known as Yolanda) ravaged Central Philippines in 2013. Failure of the communities, as well as the countries, to cope with the hazards has led to disasters that have compelled them to seek external assistance, especially internationally. In the 2004 and 2013 disasters referred to, one specific form of assistance was the conduct of art therapy especially for children. This chapter surveys the literature and examines why and how art therapy has been used in disasters in the region, and which areas either need further exploration or research.

The purpose of this paper is to discriminate fake interference caused by polygonal approximation so as to achieve accurate assembly sequence planning and assembly simulation.

An approximation zone model is proposed to formulate polygonal approximation. Fake interference is discriminated from hard interference by evaluating if polygonal models intersect within corresponding approximation zones. To reduce the computation, the surface-surface, surface-end face and end face-end face intersection test methods have been developed to evaluate the intersection and obtain collision data. An updated collision detection algorithm with this method is presented, which is implemented by a system named AutoAssem.

This method has been applied to a set of products such as a valve for assembly interference matrix generation, static and dynamic collision detection. The results show that it ensures the accuracy of assembly sequence planning and assembly simulation for polygonal models.

This method facilitates assembly design in the virtual environment with polygonal models. It can also be applied to computer aided design systems to achieve quick and accurate collision detection.

Fake interference between polygonal models may result in serious errors in assembly sequence planning and assembly simulation. Assembly zone model and novel polygon intersection verification methods have been proposed to effectively tackle this problem. Compared to current methods, this method considers valid penetration direction and approximation difference, does not need to process complicated auxiliary data and can be easily integrated with current collision detection methods.

This chapter examines the role of immigrant networks on trade, particulalry through the demand effect. First, we examine the effect of immigration on trade when the immigrants consume more of the good that is abundant in their home country than the natives in a standard Heckscher–Ohlin model and find that the effect of immigration on trade is a priori indeterminate. Our econometric gravity model consisting of 63 major trading and immigrant-sending country for the United States over 1991–2000. We find that the immigrants income, mostly through demand effect has a significant negative effect on U.S. imports. However, if we include the effect of the immigrant income interacted with the size of the immigrant network, measured by the immigrant stock, we find that higher immigrants income lowers the immigrant network effect for both U.S. exports and imports. This we find in addition to the immigrants stock elasticity of 0.27% for U.S. exports and 0.48% for U.S. imports. Capturing the immigrant assimilation with the level of immigrant income and the size of the immigrant enclave this chapter finds that the immigrant network effect on trade flows is weakened by the increasing level of immigrant assimilation.