Results 61 to 70 of about 4,359,450 (287)

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

open access: yesAdvanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao   +7 more
wiley   +1 more source

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

Prospects for North Korean Regime and the Interests of Russia

open access: yesМеждународная аналитика, 2019
The paper deals with the dynamics of home and foreign policy of North Korea under Kim Jong-un leadership, especially in last several years. Analyzed are new trends in and prospects for the development of the situation on the Korean Peninsula in the ...
Valeriy Denisov
doaj   +1 more source

International humanitarian aid to North Korea: Progress, results, and controversy

open access: yes, 2023
Since the first provision of international food assistance in the mid-1990s, humanitarian aid to North Korea has been a constant source of scrutiny and debate.
Smith, Hazel, Lee, Suk
core  

Tantalum–Palladium Ultrathin Resistance Hydrogen Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Nanoconfined Ta‐alloy thin films enable fast, reversible hydrogen sensing by suppressing unwanted phase transitions. A Ta0.88${\rm Ta}_{0.88}$Pd0.12${\rm Pd}_{0.12}$ sensing layer delivers hysteresis‐free detection from ppb to 100% H2${\rm H}_2$ at room temperature.
Folkert Isaäc Bernhard Straus   +2 more
wiley   +1 more source

Famine and Reform in North Korea [PDF]

open access: yes
North Korea has been experiencing a food emergency for more than a decade, and in the 1990s experienced a famine that may have claimed one million lives.
Marcus Noland
core  

Thickness‐Programmable Opto‐Memristive Dynamics in 6‐In Wafer‐Scale Atomic‐Layer‐Controlled WS2 for Reservoir Computing

open access: yesAdvanced Functional Materials, EarlyView.
A 6‐in wafer‐scale atomic‐layer‐controlled tungsten disulfide (WS2) is achieved by combining plasma‐assisted synthesis with three‐gas reactive ion etching. Precise layer control enables tunable band‐gap evolution and pulse‐history‐dependent opto‐memristive dynamics.
Seongho Kim   +17 more
wiley   +1 more source

North Korea-Germany relations : an ambassador's perspective of diplomacy with Pyongyang [PDF]

open access: yes, 2023
For more about the East-West Center, see http://www.eastwestcenter.org/Dr. Thomas Schaefer, German ambassador to North Korea (2007-2010 and 2013-2018) and author of "From Kim Jong Il to Kim Jong Un: How the Hardliners Prevailed," explains how Germany has
Schaefer, Thomas
core   +1 more source

Cambodia-North Korea relations [PDF]

open access: yes, 2019
For more about the East-West Center, see http://www.eastwestcenter.org/Chheang Vannarith, President of Asian Vision Institute, Phnom Penh, explains that "before the imposition of the latest round of United Nations sanctions on North Korea, the ...
Vannarith, Chheang
core   +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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