Feifei Zhang – författare

The 2024 IAIN World Congress, held from October 28th – 30th, at the Beijing International Convention Center, brought together over 350 participants and 31 delegates from all over the world to discuss cutting-edge advancements in navigation and maritime technology.Organized by the International Association of Institutes of Navigation (IAIN) and hosted by the China Institute of Navigation (CIN), the Congress delved into the latest technological trends, research, and industry developments in satellite navigation, autonomous shipping, maritime safety, and the integration of 5G, IoT, AI, and big data. This book provides an overview of key discussions, research findings, and milestones in the field, showcasing the collaborative efforts shaping the future of global maritime safety.This book is intended for professionals in navigation and maritime technology, academic researchers, maritime safety authorities, technology developers, industry enterprises, students, and enthusiasts interested in navigation systems, autonomous shipping, and maritime safety.The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons [Attribution-Non Commercial-No Derivatives (CC-BY-NC-ND)] 4.0 license.

Uranium isotopes (238U/235U) have emerged as a proxy to reconstruct the redox conditions of the Earth's oceans and atmosphere based upon the large isotopic fractionation between reduced U(IV) and oxidized U(VI). Variations in 238U/235U, particularly when recorded in carbonate sediments, can track global trends in marine oxygenation and de-oxygenation. It is unique from other proxies because reduction primarily occurs at the sediment-water interface, and this sensitivity makes U isotopes especially relevant for the habitability of benthic animals. This Element covers the background, methods, and case studies of this promising tool for understanding Earth's environmental transitions, as rapid development continues to refine the accuracy of interpretations of 238U/235U records.