Results 121 to 130 of about 2,193,823 (309)

Avoiding the Apocalypse: The Future of the Two Koreas [PDF]

open access: yes
On the Korean peninsula one of the greatest success stories of the postwar era confronts a famine-ridden--and possibly nuclear-armed--totalitarian state.
Marcus Noland
core   +1 more source

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

When and how did Japan catch up with Korea?: A comparative study of the pre-industrial economies of Korea and Japan [PDF]

open access: yes
This paper compares the economic development of Korea and Japan during the past three millennia. In particular, it examines why, although the Korean economy was more advanced from around the six century B.C.
Lee, Hun-Chang
core  

Fast Charge–Discharge of LiNi0.9Co0.05Mn0.05 Enabled by a Bikitaite‐Infused Separator for Li Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A bikitaite‐infused cellulose separator is introduced for Li metal batteries, leveraging bikitaite zeolite's ion‐conductive properties to regulate Li+‐ion flux and suppress dendrite growth. The membrane design ensures uniform Li plating, enhanced electrolyte wettability, and robust thermal/mechanical stability, delivering stable performance and low ...
Isheunesu Phiri   +2 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Tim Bouverie. Politika popuštanja Hitleru

open access: yesMeđunarodne Studije, 2021
Bruno Korea Gajski
doaj  

The (Non) Impact of UN Sanctions on North Korea [PDF]

open access: yes
This study finds that North Korea's nuclear test and the imposition of UN Security Council sanctions have had no perceptible effect on North Korea's trade with its two largest partners, China and South Korea.
Marcus Noland
core  

Memristor‐Driven Active‐Matrix Organic Light‐Emitting Diode for Energy Efficient and High‐Resolution Displays

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that memristors can replace conventional 2T–1C driving circuits with simplified 1T–1 m architectures by exploiting resistance switching. With ultra‐low switching voltages (< ±0.2 V) and multi‐level resistance states, the memristors precisely control the current injected into organic light‐emitting diodes (OLEDs).
Dong Hyun Kim   +6 more
wiley   +1 more source

North Korea: Fading Totalitarianism in the "Hermit Kingdom" [PDF]

open access: yes
North Korea is perceived by many as one of the most totalitarian societies of modern time. But in the wake of the economic collapse of the 1990s, North Korean totalitarianism has grappled with new conditions.
Katzeff Silberstein, Benjamin
core  

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