Results 121 to 130 of about 172,142 (298)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

The September Victory: The Switches of History According to Ziemowit Szczerek

open access: yesPostscriptum Polonistyczne
The article analyzes counterfactual historical scenarios developed in the works of Ziemowit Szczerek. In his prose (journalism, essays, documentaries, novels), the writer reflects on the possible history of the Second Polish Republic after its victory ...
Eugenia Prokop-Janiec
doaj   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

open access: yesAdvanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim   +8 more
wiley   +1 more source

Celebrating the nation: the case of Upper Silesia after the plebiscite in 1921 [PDF]

open access: yes, 2008
Book description: The relationship between states, societies, and individuals in Central and Eastern Europe has been characterised by periods of change and redefinition.
Michalczyk, A.
core  

Mesenchymal Stem Cell‐Inspired Microneedle Platform for NIR‐responsive Immunomodulation and Accelerated Chronic Wound Healing

open access: yesAdvanced Materials, EarlyView.
The research demonstrates a Mesenchymal Stem Cell‐inspired microneedle platform (MSCi@MN) that addresses chronic diabetic wounds by combining MSC‐derived extracellular nanovesicles (NV)–DNA conjugates in microneedle tips with photothermal MXene in the patch layer.
Chan Ho Moon   +21 more
wiley   +1 more source

Preparations of the Shipping Company “Żegluga Polska SA” for the Second World War

open access: yesStudia Maritima
In the interwar period, „Żegluga Polska SA” was the largest Polish shipowner which was financially subsidised by the Polish government. The unique role played by the merchant fleet during the armed conflict (including transport of military materials ...
Jordan Siemianowski
doaj   +1 more source

Discussion about education in the Parliament of the Second Polish Republic

open access: yesCzech-polish historical and pedagogical journal, 2014
In the Second Polish Republic two main concepts of education were defined: national education, represented the National Democracy (Narodowa Demokracja), and state education, proposed by the Sanation camp: the Nonpartisan Bloc for Cooperation with the Government (Bezpartyjny Blok Współpracy z Rządem – BBWR).
openaire   +1 more source

Active Learning‐Guided Accelerated Discovery of Ultra‐Efficient High‐Entropy Thermoelectrics

open access: yesAdvanced Materials, EarlyView.
An active learning framework is introduced for the accelerated discovery of high‐entropy chalcogenides with superior thermoelectric performance. Only 80 targeted syntheses, selected from 16206 possible combinations, led to three high‐performance compositions, demonstrating the remarkable efficiency of data‐driven guidance in experimental materials ...
Hanhwi Jang   +8 more
wiley   +1 more source

Poland in Times of Great War and Second Independence 1914–1939 [PDF]

open access: yes, 2015
The present book “Poland – History, Culture and Society. Selected Readings” is the third edition of a collection of academic texts written with the intention to accompany the module by providing incoming students with teaching materials that will assist ...
Pietrzak, Jacek
core  

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

open access: yesAdvanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo   +9 more
wiley   +1 more source

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