Results 31 to 40 of about 467,696 (171)

Electrified rhythms: How hydropower infrastructure transforms hydrosocial relations of riverine communities in the Lower Sogamoso River, Colombia

open access: yesPeople and Nature, EarlyView.
Abstract Hydropower dams regulate water flows for millions of downstream inhabitants worldwide, altering water availability. Under a changing climate, flow control is often framed technically and politically as being essential for reducing drought and flood risks. However, it can also disrupt ecological flows, impact livelihoods and erode environmental
Laura Betancur‐Alarcón   +4 more
wiley   +1 more source

Migration, Repression and Homosexual Sociability in Francoist Spain: An Analysis of the Case Files of the Special Courts of Barcelona (1965–1975)

open access: yesGender &History, EarlyView.
ABSTRACT In Spain, under General Franco's regime, homosexuality was regarded as an antisocial and dangerous behaviour. It was thus pursued both by the police and judicial courts. The Law on Vagrants and Crooks (1954) and, subsequently, the Law on Dangerousness and Social Rehabilitation (1970) constituted the legal mechanisms used by the dictatorship to
Jordi Mas Grau, Rafael Cáceres‐Feria
wiley   +1 more source

3D-printed low-cost choke corrugated Gaussian profile horn antenna for Ka-band

open access: yesScientific Reports, 2023
In this work, a fully 3D-printed choke corrugated Gaussian profile horn antenna (GPHA) using high-conductive filaments and a low-cost modular 3D-printing technique is implemented.
Yair D. Zárate   +3 more
doaj   +1 more source

Development of a state feedback controller for the synchronous buck converter [PDF]

open access: yes, 2005
A digital control algorithm for a current-mode (CM) and a voltage-mode (VM) synchronous buck converter (SBC) is developed. In both cases, the design leads to a stable controller, even for a duty cycle larger than 50%.
Bortolotto, Gustavo   +2 more
core  

The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río   +6 more
wiley   +1 more source

A Model for Induction Motors with Non-Uniform Air-Gap [PDF]

open access: yes, 2005
Equations to calculate inductances of induction motors, considering non-uniform air-gap, are proposed. The analyzed air-gap variations are static and dynamic eccentricity and stator slots.
Bossio, Guillermo Rubén   +4 more
core  

Finding a mix of renewable energy for different stakeholders by applying multi‐criteria decision‐making techniques

open access: yesInternational Transactions in Operational Research, Volume 33, Issue 4, Page 2499-2534, July 2026.
Abstract This paper presents a two‐stage model for planning a renewable energy portfolio by balancing economic, social and environmental sustainability goals. The first stage addresses a multi‐objective problem where conflictive impacts generated by the energy portfolios should be optimised according to the corresponding economic, social or ...
Amelia Bilbao‐Terol   +2 more
wiley   +1 more source

uRT51: An Embedded Real-Time processor implemented on FPGA devices [PDF]

open access: yes, 2007
In this paper we describe and evaluate the main features of the uRT51 processor. The uRT51 processor was designed for embedded realtime control applications. It is a processor architecture that incorporates the specific functions of a real-time system in
Alimenti, O.   +3 more
core  

Accelerating Just Energy Transitions in Brazil: Pathways for Social Development

open access: yesLatin American Policy, Volume 17, Issue 1, March 2026.
ABSTRACT This critical article analyzes energy poverty in Brazil from the theoretical perspective of distributive justice, proposing the implementation of a new social regulation called Contribution to Social Development. The goal is to support the process of a just energy transition leading to a broader debate on energy planning and social issues ...
Marcio Giannini Pereira   +5 more
wiley   +1 more source

Desempeño de inversores multinivel para energías renovables, una alternativa a la generación distribuida en México

open access: yesRevista Científica de Ingeniería Energética, 2023
En la actualidad el empleo de sistemas de generación eléctrica a través de fuentes alternas de energía incrementa continuamente, debido al aumento de la demanda energética, reduciendo las emisiones de CO2.
Francisco Eneldo López Monteagudo   +5 more
doaj  

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