Viewpoint: The Social Dimension in Icelandic Fisheries Governance

Fisheries are a complex mixture of social, political, economic, and biological aspects, and often biological or economic end goals are given priority in fisheries governance. However, there is a growing trend around the world to include non-economic social objectives in fisheries management schemes, e.g., supporting rural communities, increasing opportunities for newcomers or part-time fishermen, or providing equitable access for culturally and historically important fisheries. In Iceland, fisheries management has given biological and economic goals' precedence over social goals, and there is no formal inclusion of a social science advisory body or formalized direct input from all relevant stakeholders in the fisheries governance process. Non-economic social sciences such as geography, anthropology, sociology, and political science can add important information and considerations that in turn make fisheries more sustainable in the long run. In this paper, we explain the role of social science in fisheries governance, explore how social aspects are addressed in other fisheries governance schemes, and review highlights from fisheries social science research in Iceland. We hope to generate a meaningful conversation regarding the possibilities of a modern, pioneering fisheries' governance process in Iceland where social, economic, and biological goals and research are all given equal attention.     

基于身份标签的一体化网络接入认证方案

本文针对一体化网络体系结构中接入认证机制的安全问题,提出一种基于身份标签的一体化网络新型接入认证方案,该方案采用"挑战-应答"的方式,充分结合一体化网络体系结构的特点与现有数字证书机制的优势,实现用户终端与接入网络的双向认证;并且,该方案采用"身份标签"将接入用户的数字证书与接入标志绑定,实现用户的身份信息与用户终端的真实对应关系;同时,通过对用户终端实施可持续性认证,有效地保障了一体化网络体系中信息源的真实性,从而提高一体化网络接入的可控可管性。最后对该方案的安全性与初始接入认证过程的性能进行定性分析与比较,并对身份标签的可持续性认证进行会话性能分析。     

资源型企业可持续发展能力及其构建研究

可持续发展能力是实现资源型企业可持续发展的重要能力,深入研究我国当前资源型企业存在的矿竭企衰,发展后劲不足问题,其中一个很重要的根源在于企业缺乏可持续发展能力的培养和强化。分析了可持续发展能力及其外在表现、资源型企业构建可持续发展能力的必要性,并结合资源型企业的实际提出了构建可持续发展能力的途径和方式。     

港口可持续发展的四大关键要素

论文结合特大型世界级亿t大港——青岛港十几年来的建设发展经验,重点论述了港口企业如何在世界经济的大潮中实现可持续发展。     

基于可持续发展的智能交通宣传导向

基于实现可持续发展的交通模式,基于ITS的发展,提出了新的扩大的交通导向系统的内涵,同时对如何更好地发挥交通舆论导向作用进行了相关论述。     

走可持续发展道路，发展绿色内河航运

我国河流众多,可开发的航运资源丰富,但在各类交通运输系统日益发达的今天,我国内河航运却陷入了停滞不前的困境。如何认清我国内河航运的现状,结合绿色航运的理念来开发航运资源,实现内河航运的可持续发展,是本文探讨的主要内容。     

Learning-based traffic signal control algorithms with neighborhood information sharing: An application for sustainable mobility

This research applies R-Markov Average Reward Technique based reinforcement learning (RL) algorithm, namely RMART, for vehicular signal control problem leveraging information sharing among signal controllers in connected vehicle environment. We implemented the algorithm in a network of 18 signalized intersections and compare the performance of RMART with fixed, adaptive, and variants of the RL schemes. Results show significant improvement in system performance for RMART algorithm with information sharing over both traditional fixed signal timing plans and real time adaptive control schemes. The comparison with reinforcement learning algorithms including Q learning and SARSA indicate that RMART performs better at higher congestion levels. Further, a multi-reward structure is proposed that dynamically adjusts the reward function with varying congestion states at the intersection. Finally, the results from test networks show significant reduction in emissions (CO, CO₂, NO_x, VOC, PM₁₀) when RL algorithms are implemented compared to fixed signal timings and adaptive schemes.     

基于文化生态理论的中国旅游业可持续发展研究

本文从旅游景区物质文化建设、非物质文化文化演绎以及游客的影响等方面,分析了我国旅游文化生态问题,从文化公平性、多样性和可持续利用等方面,探讨了旅游文化生态与旅游可持续发展的关系,最后对中国旅游文化可持续发展提出了相应的措施和建议。     

上海市交通系统可持续发展若干问题探析

将交通系统看作是一个整体性的大系统,运用系统工程的思想,分析系统交通规划与城市规划、快速公交(BRT)系统与轨道交通、小汽车的增长与公共交通这几对关键问题,提出对上海城市交通规划工作的理念和方法。