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Unveiling Copper‐Induced Phase Transitions and Degradation Mechanisms of Transition Metal Sulfide Anodes for Sodium‐Ion Batteries

Advanced Science, EarlyView.
Sodium polysulfides, which are generated from TMS anodes, react with the Cu current collector, thereby triggering Na‐Cu–S interfacial phase formation. Simultaneously, transition metals undergo ionization and redeposition on the counter electrode. The coupled processes drive the phase evolution of TMS toward the stable Cu1.8S phase.
Jacob Choe +7 more
wiley +1 more source

North Korea’s Moscow Pivot and Its Impact on China–North Korea Relationship

East Asian Policy
Amid the Russia–Ukraine war, North Korea’s ties with Russia have deepened through illicit military cooperation (i.e. arms-for-technology exchanges).
Sung Chull KIM
doaj +1 more source

Tailored Design of Iridium Single Atoms on Mn–Ni‐Phytate with Robust Bifunctionality for Enhanced Anion Exchange Membrane Water Electrolysis

Advanced Energy Materials, EarlyView.
This work presents a manganese‐doped nickel hydroxide scaffold that anchors iridium as isolated single atoms (SAs) using a phytate ligand. The hierarchical nanoarray catalyst efficiently drives simultaneous hydrogen and oxygen evolution in alkaline media, enabling industrial‐level current densities and long‐term stability in an anion‐exchange‐membrane ...
Quynh Phuong Ngo +11 more
wiley +1 more source

Four factors in the “special relationship” between China and North Korea: a framework for analyzing the China–North Korea Relationship under Xi Jinping and Kim Jong-un

Journal of Contemporary East Asia Studies, 2020
Background Analyzing North Korea is essential for examining international relations in East Asia as a whole, but North Korea’s tight control over information makes this difficult.
Masahiro Hoshino, Shunji Hiraiwa
doaj +1 more source

Semi‐autonomous Navigation of Magnetic Microcarriers for Knee Cartilage Regeneration

Advanced Intelligent Systems, EarlyView.
Autonomous navigation of magnetic microcarriers in complex 3D environments is investigated through a semi‐autonomous strategy integrating magnetic actuation with monocular visual feedback. Real‐time global tracking is achieved via radio‐frequency‐based localization and depth estimation, while model‐based computation determines optimal steering forces ...
Kim Tien Nguyen +3 more
wiley +1 more source

North Korea’s Nuclear Advancement and Its Increasing Impact on International Security

East Asian Policy
North Korea’s nuclear advancements have not only escalated tensions across the Korean peninsula but also presented significant challenges to broader international security.
Sung Chull KIM
doaj +1 more source

Política Internacional
Nunca antes un presidente estadounidense en ejercicio había manejado las relaciones con la RPDC como lo hizo Donald Trump, ni ningún líder de Pyongyang se había sentado cara a cara con un mandatario estadounidense en el ejercicio de sus funciones como lo
Jesús de los Ángeles Aise Sotolongo
doaj +1 more source

Education of Kim Jong-Un

, 2018
North Korea's opaqueness combined with its military capabilities make the country and its leader dangerous wild cards in the international community. Brookings Senior Fellow Jung H. Pak, who led the U.S. intelligence community's analysis on Korean issues, tells the story of North Korean leader Kim Jong-un's upbringing, provides insight on his decision ...
openaire +1 more source

The Moderating Role of Strategic Investment in R&D and Advertising in Firms' ESG–Performance Relationship

Business Strategy and the Environment, EarlyView.
ABSTRACT This paper examines the association between environmental, social, and governance (ESG) ratings and firm performance, taking into account the role of firms' strategic investments in research and development (R&D) and advertising. Drawing on resource‐based view and signalling theory perspectives and employing the generalised method of moments ...
Syed Zulfiqar Ali Shah, Saeed Akbar, Sardar Ahmad +2 more
wiley +1 more source

Alloying Cu, Fe, and Co in Ni/YSZ Electrodes for High‐Temperature CO2 Electrolysis: Impact on TPB Density, Activity, and Carbon Deposition Resistance

Carbon Energy, EarlyView.
Systematic alloying of Ni with Cu, Fe, and Co in Ni/YSZ electrodes modifies active site density up to 43%, decreases activation energies by up to 44%, and reduces carbon deposition fourfold. Cu–Ni alloy is among the most promising alloy catalysts for electrochemical CO2 reduction in SOECs.
Min Jun Oh +9 more
wiley +1 more source

north korea
corea del norte
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