Researchers at Universidad Politécnica Salesiana have developed a smart methodology to restore electric power systems after multiple simultaneous failures. By using optimal AC power flows and new stability criteria, the model ensures a safe and efficient recovery of transmission lines and generation units, preventing voltage collapses even in extreme N-5 contingency scenarios.

Today, most of the salmon consumed in Japan is imported from countries like Chile and Norway, according to the Ministry of Agriculture, Forestry and Fisheries. But just two decades ago, Japanese chum salmon made up a much larger share of domestic salmon consumption. Their numbers have declined sharply in recent years, and new research from Hokkaido University suggests that this decline may be linked to the loss of their natural habitats along their migratory routes.

After a year and a half of remote work and learning, UC Santa Barbara undergraduate students Sophia Lecuona Manos, Gabrielle Plewe, Carson Gadler and doctoral student Zoe Zilz returned to campus in late 2021 eager for some on-campus, hands-on research, an opportunity that was lost when COVID shut down universities and other public institutions in early 2020.

A new study published in Big Earth Data introduces Geo-Disasters, a database that geocodes 9,217 climate-related disasters reported by EM-DAT from 1990 to 2023. The database enhances disaster risk analysis by providing accurate geocoded locations and offering an open, reproducible framework for integrating spatial climate and socioeconomic data. This framework supports machine learning applications for climate risk, vulnerability, and adaptation studies. The Geo-Disasters database aims to bridge critical data gaps in global climate-hazard risk assessment and inform more equitable adaptation planning. The link to Geo-Disasters Database is https://doi.org/10.5281/zenodo.15487667.

A Korean research team has developed a closed-loop 4D printing technology that enables self-actuating and recyclable structures using sulfur waste generated from petroleum refining processes. A joint research team led by Dr. Dong-Gyun Kim of the Korea Research Institute of Chemical Technology (KRICT), Professor Jeong Jae Wie of Hanyang University, and Professor Yong Seok Kim of Sejong University reported the world’s first 4D printing technology based on sulfur-rich polymers that respond to heat, light, and magnetic fields.

Researchers have proposed a novel methodology to optimize the placement of impedance relays in medium-voltage electrical distribution systems, where their application has traditionally been limited compared with transmission networks. By integrating clustering algorithms with metaheuristic optimization techniques, the approach enables a more strategic configuration of protection devices within complex and dynamic distribution grids. Simulation studies conducted using CYME software and the Ant Colony Optimization algorithm demonstrate that the proposed method can reduce failure frequency and improve the system’s response to fault conditions, contributing to greater reliability and resilience in electrical distribution infrastructure.

A new study introduces a coordinated charging scheme for electric vehicles that prevents power grid overloading. By classifying vehicles (cars, trucks, and buses) and utilizing real-time pricing, researchers identified a more efficient way to install distributed generation units. This approach significantly reduces power loss and increases monetary benefits compared to traditional methods.