39,307 research outputs found
Blockchain application in circular marine plastic debris management
No full textThe threat to the environment and humanity caused by marine plastic debris has aroused global attention. This research aims to explore the feasibility of applying blockchain technology (BCT) in marine plastic debris management. A case study on three pioneer recycling organizations is conducted based on secondary data. The study found that BCT can be applied to solve some of the existing challenges of marine plastic debris management. A digital token system and identity recognition mechanism based on BCT can increase the public awareness for marine plastic debris governance. The derived digital wallets and distributed ledgers can effectively replace paper documents and cash transactions in the traditional recycling chain, and minimize global impact on local economies, thus improve efficiency and safety. Also, the traceability and high transparency of blockchain and the application of smart contracts can effectively build a global recycling network. In addition, the application of BCT can greatly improve the transparency of recycling value chains, and make them more accepting of supervision from society and consumers. This research is one of the first studies on BCT in marine plastic debris management and explores worldwide pioneering companies. In practice, this study can help companies analyse the defects in their own waste disposal models and help practitioners make decisions to adopt BCT. In academia, as one of the early exploratory studies on the application of BCT to the treatment of marine plastic debris, this study provides further empirical reference on BCT based business models and recycling chains, and can guide future research in this field
A Study of the Classical Landscape at the Wang River Villa of Wang Wei
No full textThe landscape of Wang Wei's Wang River Villa is examined by reviewing the essays and papers written about the poetical collaboration, the “Wang River Collection.” The purpose of this paper is to clarify the meaning of villa architecture in China. The author expects that this research will contribute to a mutual understanding between cultures. The villa was a Utopia for Wang. On the other hand, he was a pious Buddhist and Buddhistic concepts are reflected in the landscape. I consider the features of the classical landscape of Xie Lingyun and "Chu Ci," as written in “The Collection,” a reflection of the Buddhistic concept. When considering what the classics meant to Wang Wei, it is apparent that his villa is a representation of the classical landscape. It is not an imitation of the classical landscape, but a unique and original creation of art by Wang.departmental bulletin pape
First person – Yihua Wang
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping early-career researchers promote themselves alongside their papers. Yihua Wang is the first author on ‘Nuclear entry and export of FIH are mediated by HIF1α and exportin1, respectively’, published in Journal of Cell Science. Yihua is a Lecturer in Biological Sciences at the University of Southampton, studying cell signalling in lung fibrosis and cancer, drug target validation and gene function analysis
Study on the propagation of sustainable development concept among Gulf ports based on complex network
No full textThe development of the Gulf ports group has brought challenges to the marine environment and global climate change. Deconstructing the propagation mechanism of the sustainable development concept among the Gulf ports group will help to provide a new perspective for the ports governance in the Gulf region. This paper constructed the ports relationship network of Gulf region with the method of complex network, established the propagation model of sustainable ports concept, and simulated the model. The results suggest that: the relationship structure of Gulf ports group affects the spread of sustainable development concept, and the political conflicts, complex interest structure and randomization of ports network in the Gulf region will hinder the spread of sustainable development concept to some extent; the enhancement of ports’ sustainable development competitiveness in Gulf region can effectively promote the spread of sustainable development concept, and the increasing pressure of international regulations on sustainable development and regional consensus will make ports more receptive to the concept of sustainable development
The game simulation of “The Belt and Road” economic and trade network based on the asymmetric QRE model
No full textThis paper introduces the asymmetric Quantal Response Equilibria (QRE) network game model to explain the influencing factors on the cooperative behavior of ʺThe Belt and Roadʺ countries. The findings suggest that the belief in the sensitivity to own payoff and counterparts, the reward for cooperation by neighbor nodes, the trade facilitation index, and the reduction rate of tariffs were incorporated to have a significant impact on the Belt and Road cooperation. Our findings provide important policy references to the belt and road countries
The evolution of the port network along the Maritime Silk Road: from a sustainable development perspective
No full textThis paper explores the evolution of the port network along the Maritime Silk Road (MSR) motivated by the need for sustainable development. First, considering the influence of sustainable development on the attraction of ports, we optimize the AB model, a generator based on connectivity. After this the evolution simulation is carried out based on the data of 55 major ports along the MSR. The results of evolution simulation show that, due to sustainable development, ports in Southeast Asia and South Asia are expected to become the core nodes in the network while the status of China's ports in the network will decline significantly. The results further show that the frequency of nodes close to the mid-value increases significantly and that ports currently under construction, such as Melaka Gateway, Hambantota and Gwadar, will have an important impact on the network structure. This study serves as a useful reference for port development along the MSR from a sustainable development perspective
Research on the cooperative network game model of marine plastic waste management
No full textMarine plastic waste pollution damages the stability of the marine ecosystem and inhibits the sustainable development of the "blue economy", which has aroused widespread concern worldwide. Nowadays, cooperation on marine plastic waste management is an urgent research topic. A global consensus on management cooperation is emerging, but the economic feasibility of cooperation has not yet to be proven. This paper takes the amount of capital investment, technology level of governance and the amount of marine plastic waste to be treated as variables affecting the cooperative income to construct a cooperative network game model for marine plastic waste management from the perspective of economics. The paper distributes benefits based on the "Myerson value", analyzes the equilibrium conditions of the model and tests the stability of cooperation. In addition, numerical analysis is carried out using actual data from key countries to demonstrate the practical economic feasibility of cooperation in marine plastic waste management. The findings include: (1) The technology level of governance and the amount of marine plastic waste to be treated have a negative impact on the country's choice of cooperative governance strategies and the stability of cooperative alliance, while the amount of capital investment is conductive to it. (2) The size of the alliance has an impact on country's strategic choices and the stability of the alliances. Too small an alliance is not conducive to cooperative alliance building, which gradually becomes more likely as the size of the alliance increases, but it is uncertain the effect of oversized alliance and what size is most appropriate. (3) Cooperation in marine plastic waste management is economically feasible at both the theoretical and practical levels. (4) Encouraging technological innovation to improve the governance level, implementing extended producer responsibility measures to shift the management cost, exerting the positive influence of key countries to promote the stability of the alliance, and establishing a reasonable interest adjustment mechanism to coordinate the interests of all parties are helpful to build a stable and efficient cooperation alliance and improve the economic feasibility of marine plastic waste management cooperation. This paper not only provides theoretical support for the global cooperation of marine plastic waste management, but also proves the feasibility of practice and points out the direction for its practice.</p
FIGURES 1–4 in Two new species of Plagiostriata (Bacillariophyaceae) from sand sediments of southern China
No full textFIGURES 1–4. LM micrographs of Plagiostriata xiapuensis sp. nov. from type material. Fig. 1 corresponds to the holotype. Scale bars = 10 μm.Published as part of Zhang, Weiyu, Wang, Zhen, Zhuo, Suqing, Gao, Yahui, Li, Xuesong, Liang, Junrong & Chen, Changping, 2022, Two new species of Plagiostriata (Bacillariophyaceae) from sand sediments of southern China, pp. 87-93 in Phytotaxa 556 (1) on page 89, DOI: 10.11646/phytotaxa.556.1.7, http://zenodo.org/record/695213
Population prediction for new town planning of Beijing municipality - A case study of Changping new town
No full textBased on the function orientation of the new towns in General Planning for Beijing Municipality (2004-2020) and the condition of future economic growth and labor force demand, this paper makes a population prediction of Changping using edge-glide algorithm. It is pointed out that the population amount will decline under natural population growth, from 515 thousand in 2000 to 489 thousand in 2020. Along with the population and industry transfer from center of the municipality to outer district, the new town will have strong impact on function remission of the central city area and the population will increase rapidly in Changping. It is predicted that there will be increase of 520-630 thousand in Changping from 2000 to 2020. So its important to take measures to meet the requirement of population growth and alleviate the function of city zone
Plagiostriata pingtanensis W. Y. Zhang, Z. Wang, Y. H. Gao & C. P. Chen 2022, sp. nov.
No full textPlagiostriata pingtanensis W.Y.Zhang, Z.Wang, Y.H.Gao & C.P.Chen sp. nov. (LM Figs 13–16, SEM Figs 17–23) Description:—LM: Cells solitary. Frustules rectangular in girdle view. Valves linear elliptical to elliptical with round apices. Valve dimensions: length 4.6~6.0 μm, breadth 1.6~1.8 μm. The sternum and striae are invisible. SEM: Valve surface flat. The valve margin is simple and smooth. The ventral mantle is deep and the dorsal mantle is wide (Figs 17, 19, 22). Sternum narrow, not obvious, extending to the apical pore area at both poles (Fig. 17). Striae uniseriate, symmetrically distributed on two sides of the sternum, 44~ 46 in 10 μm (Figs 17, 21). Areolae small, subcircular, occluded by external volae. Apical pore fields simple, composed of two pores. The pores in apical pore fields narrow and more like the fissure (Fig. 23). The external slit-like aperture of the rimoportula is located in the striae near sternum at the valve centre, and the internal opening with slight siliceous thickening is simple and situated close to the sternum (Figs 18, 19, 21). The girdle is composed of three simple bands with a typical staurosirid girdle construction. The plain bands open, curved and thin at the cell apices. The valvocopula is broader than the segmented copulae (Fig. 22). Type:— CHINa,= Fujian Province, Pingtan County: Longfengtou Beach, sand sample from intertidal, low tide area, 25°30 ‘19 “N, 119°48’ 57” E, May 2018, Z. Wang, School of Life Sciences, Xiamen University (holotype slide N202102! = Fig. 2; isotype slide NI 202102, both at School of Life Sciences, Xiamen University, Xiamen, People’s Republic of China). Etymology:—The epithet “ pingtanensis ” derives from the site where the specimen was found.Published as part of Zhang, Weiyu, Wang, Zhen, Zhuo, Suqing, Gao, Yahui, Li, Xuesong, Liang, Junrong & Chen, Changping, 2022, Two new species of Plagiostriata (Bacillariophyaceae) from sand sediments of southern China, pp. 87-93 in Phytotaxa 556 (1) on pages 90-92, DOI: 10.11646/phytotaxa.556.1.7, http://zenodo.org/record/695213
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