Results 61 to 70 of about 302,645 (335)

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

Charisma and Demons. Sources and Effects of a Political Concept

open access: yesScienza & Politica, 2020
The paper intends to investigate the sources of the very concept of charisma in Max Weber, starting from some polemical readings made by Carl Schmitt. Aside from theologian Karl Holl, particular attention is devoted to Protestant jurist Rudolf Sohm and ...
Massimo Palma
doaj   +1 more source

Constitutional Legitimacy [PDF]

open access: yes, 2003
The problem of constitutional legitimacy is to establish why anyone should obey the command of a constitutionally-valid law. A lawmaking system is legitimate if there is a prima facie duty to obey the laws it makes. Neither consent of the governed nor
Barnett, Randy E.
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Heroical Apatheism: Mala Fide Bootstrapping Obligations [PDF]

open access: yes, 2018
Discussions on hypothetical gods virtually always focus on the latter’s existence or nonexistence. However, this is only the secondary question. Heroical apatheism distinguishes these questions from the primary question, which pertains to the importance ...
Von Hegner, Ian
core   +1 more source

Dynamic Optical Lattices Through Conducting Polymer‐Gated Confinement

open access: yesAdvanced Materials, EarlyView.
The conducting polymer gate is incorporated into organic dielectric lattices to control the dynamic switching of nonlocal Mie resonances in the visible/NIR regions. The “closed gate” from oxidized PEDOT confines the light within dielectric nanocylinders and activates nonlocal Mie resonances, while the “opened gate” from reduced PEDOT facilitates ...
Dongqing Lin   +3 more
wiley   +1 more source

High Performance Flexible Optical Fiber Sensor Enabled by Er3+/Yb3+ Co‐Doped near Pure‐Green Upconversion Emission Phosphor for Implantable Temperature Sensing

open access: yesAdvanced Materials Interfaces, EarlyView.
A superior double‐cladding optical fiber temperature sensor (OFTS) is fabricated by utilizing a bright and stable near‐pure green UC phosphor NaLu(WO4)2:Er3+/Yb3+ as sensing material. The OFTS exhibits a high temperature measurement accuracy of 0.155°C at 303 K, excellent measuring repeatability and chemical stability, along with strong resistance to ...
Jing Lyu   +4 more
wiley   +1 more source

Book review: Psychology and politics: a social identity perspective [PDF]

open access: yes, 2013
"Psychology and Politics: a Social Identity Perspective." Alexa Ispas. Psychology Press. December 2012. --- This book covers a wide range of political topics, such as the way in which categorising ourselves into groups influences how we perceive the ...
Laberge, Yves
core  

A Review on Microreactor Design for Effective Fischer–Tropsch Process Intensification

open access: yesAdvanced Materials Technologies, EarlyView.
Design strategies for effective Fischer–Tropsch process intensification are summarized based on experimental and simulation experiences. Recommendations for catalyst loading of packed‐bed and wash‐coated microchannel, microtube, micromonolith, and microstructured reactors are discussed.
Yangjun Wei   +5 more
wiley   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang   +8 more
wiley   +1 more source

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