Results 101 to 110 of about 719,011 (231)

Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)

Angewandte Chemie, EarlyView.
Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley   +2 more sources

Characterization and Selection of Contractile Actuators for Soft Robotics Operating in the Quasistatic Regime

Advanced Intelligent Systems, EarlyView.
We developed methods to characterize soft contractile actuators using force–displacement measurements in the passive state and the total force in the active state and define the operational range of thermal, electrothermal, and pneumatic muscles. A graphical method enables the selection of an actuator based on the required mechanical force–displacement
Qiong Wang, Liuyang Cheng, Jeongmin Kim, Samuel Tsai, Devin Roach, Sameh Tawfick   +5 more
wiley   +1 more source

1,3‐Brook Rearrangement of α‐Silyl Allylic Alcohols: Copper‐Catalyzed Enantiospecific Formation of Allenes and Copper‐Mediated ipso‐Substitution Reactions Affording Trisubstituted Alkenes

Angewandte Chemie, EarlyView.
A regioselective ruthenium catalyzed trans‐hydrosilylation of propargyl alcohols followed by a 1,3‐Brook rearrangement opens access to reactive organocopper intermediates, which evolve upon warming into allenes with strict chirality transfer to the emerging axis; alternatively, these reactive species can be trapped with a large variety of electrophiles
Jack L. Sutro, Felix Anderl, Paul Haf‐Moths, Alois Fürstner   +3 more
wiley   +2 more sources

Voltage Service Limits Smart Contract Using Distributed Ledger Technology for Electrical Utility Grid with Customer-Owned Generator

Energies
Modern electrical grids face growing stability risks from customer-owned generators, especially at points of common couplings (PCCs). Disruptive behavior from power-electronic sources can cause protective relays to isolate problematic generators, making ...
Gary Hahn, Emilio C. Piesciorovsky, Raymond Borges Hink, Aaron Werth   +3 more
doaj   +1 more source

Border harm and affective injustice: The politics of anger at the Melilla border, Spain

American Journal of Community Psychology, EarlyView.
Abstract This article examines protests in a detention center in Melilla, Spain—a site where structural violence intersects with the everyday harms of confinement. Adopting a justice and dignity‐centered perspective, we analyze grassroots forms of resistance emerging at the border. The study focuses on the protests of Tunisian migrants and explores the
Corina Tulbure
wiley   +1 more source

Control of Helix Screw‐Sense Preference in Dynamic Foldamers of meso Symmetry Built From Chiral Monomeric Units

Angewandte Chemie, EarlyView.
Sequence‐diverse meso and “near‐meso” oligourea foldamers are reported and exhibit stimulus‐responsive helix screw‐sense control governed by terminal‐group desymmetrization and sequence‐encoded helix stability. ABSTRACT Meso oligoureas are dynamic hydrogen‐bonded foldamers capable of reversible helix polarity inversion but have so far been limited to ...
Naveen Gupta, Mégane Bornerie, Bo Li, Antoine Hacihasanoglu, Orlando Villegas Bello, Stéphanie Antunes, Estelle Morvan, Jean‐Marc Sotiropoulos, Philippe Carbonnière, Morgane Pasco, Brice Kauffmann, Céline Douat, Sung Hyun Yoo, Gilles Guichard   +13 more
wiley   +2 more sources

Reliability assessment of PV location based on a new coordination and failure rates of protection relays to minimize indices energy

Cogent Engineering
Protection relays are crucial to analyzing how photovoltaic (PV) systems improve network dependability during disturbances. Thus, an in-depth analysis is performed to determine how PV integration affects the nominal load current of the medium voltage (MV)
Mohammed Jawad Abed, Nadheer A. Shalash, Anis Mhalla   +2 more
doaj   +1 more source

NO NĀ PUA: Exploring the feasibility of culture‐based social prescribing on firefighters' wellbeing in Hawaiʻi

American Journal of Community Psychology, EarlyView.
Abstract Firefighters face an array of stressors due to the demands of their occupation, leading to a high prevalence of mental health challenges. Social prescribing represents a novel approach to healthcare that emphasizes a holistic view of health and wellbeing.
Janice Ikeda, Margary Martin, Misty Pacheco   +2 more
wiley   +1 more source

Implementasi Visual Studio pada Sistem Monitoring Daya dan Proteksi Rele Arus Lebih Menggunakan Automatic Transfer Switch/Automatic Main Failure (ATS/AMF) Disuplai oleh Kombinasi Grid dan Photovoltaic (PV)

Rekayasa
Monitoring power consumption and protecting the use of household electrical equipment with separate and remote Internet of Things (IoT)-based energy sources, is an important requirement in modern times. This paper proposes the implementation of a voltage
Andrian Eko Riftianto, Amirullah Amirullah   +1 more
doaj   +1 more source

Community partner perspectives on community‐academic health research partnerships with Black American communities: A scoping review

American Journal of Community Psychology, EarlyView.
Abstract Evaluations of community‐engaged research (CEnR) typically emphasize health outcomes rather than the partnership processes that contribute to intervention effectiveness. This scoping review synthesized community partner‐identified strategies for successful community‐academic health research partnerships with Black American communities and ...
Kaylyn A. Garcia, Dylan R. Wong, Derek M. Griffith, Nada M. Goodrum, Bret Kloos, Shannon Deutsch, Guillermo M. Wippold   +6 more
wiley   +1 more source