Results 31 to 40 of about 547,480 (359)

The solar differential rotation in the 18th century

open access: yes, 2012
The sunspot drawings of Johann Staudacher of 1749--1799 were used to determine the solar differential rotation in that period. These drawings of the full disk lack any indication of their orientation.
Arlt   +21 more
core   +1 more source

Economic Viability of Photovoltaic Systems Providing Frequency Containment Reserve

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This article investigates the feasibility of photovoltaic (PV) systems providing frequency containment reserve (FCR) in the Netherlands. The economic analysis demonstrates that a PV plant can profitably participate in FCR without battery storage by maintaining an active power reserve.
Emil Petkovski   +3 more
wiley   +1 more source

Bubbles and Bees: Historical Exploration of Psychosocial Thinking [PDF]

open access: yes, 2011
This paper is written from the belief that there is considerable benefit from a historical exploration of psychosocial thinking. It examines the work of Bernard Mandeville (1670-1733), who wrote what became a somewhat infamous piece of social theory in ...
Jones, David
core  

Torque‐Transmitting Architected Metamaterials for Flexible and Extendable Tubular Robotics

open access: yesAdvanced Intelligent Systems, EarlyView.
Soft and continuum robots commonly rely on fluid, tendon, or rod‐based power transmissions, to control robotic form and actuation. This study presents an architected structure, based on patterned straight‐line mechanisms, that enables simultaneous bending, extending, and torsionally rigid (BETR) transmission.
Sawyer Thomas, Aman Garg, Jeffery Lipton
wiley   +1 more source

Alcune questioni relative alla testologia e alle pubblicazioni dei monumenti letterari russi del XVIII secolo (traduzione di Margherita De Michiel)

open access: yeseSamizdat, 2021
Italian translation of Nekotorye voprosy tekstologii i publikatsii russkikh literaturnykh pamiatnikov XVIII veka by Iu. Lotman, N. Tolstoi, B. Uspenskii. Translated by Margherita De Michiel (University of Trieste).
Jurij Lotman   +2 more
doaj  

The Insistence of Blackness and the Persistence of Antiblackness in Ireland

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley   +1 more source

Europski uzori i hrvatski jezični priručnici u 18. stoljeću

open access: yesStudia z Filologii Polskiej i Słowiańskiej, 2015
European models for the Croatian language handbooks in the 18th century Until the 19th century Croatian language handbooks, namely grammars, dictionaries and ortography books, were mostly bilingual and multilingual.
Petra Košutar
doaj   +1 more source

All crystal clear: 18th-century glass à la façon de Bohème from the cistercian nunnery of Clairefontaine, Belgium [PDF]

open access: yes, 2013
Excavations at the Cistercian nunnery of Clairefontaine, located near Arlon in the south of Belgium, revealed an assemblage of 18th-century colorless glass.
Cagno, Simone   +4 more
core  

Phytoplankton Tune Local pH to Actively Modulate Circadian Gravitactic Behavior

open access: yesAdvanced Physics Research, EarlyView.
Diel vertical migration hides an unexpected twist: Phytoplankton quietly engineer their local pH landscape, splitting into behaviorally distinct sub‐groups which stay separated even in identical conditions. Circadian pH changes, occuring over the course of a day, reshape their gravitactic behavior and physiological functions in ways scientists have ...
Arkajyoti Ghoshal   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy