Results 31 to 40 of about 880,026 (250)

Aging and Electrical Stability of DNTT Honey‐Gated OFETs

open access: yesAdvanced Electronic Materials, EarlyView.
DNTT honey‐gated organic transistors were fabricated and evaluated to assess short‐ and long‐term stability under electrical stress and aging. Short‐term transfer measurements (five days, 40 sweeps/day) showed minimal parameter shift, while extended measurements revealed gradual degradation over weeks.
Douglas H. Vieira   +8 more
wiley   +1 more source

Creep-fatigue interactions in equiaxed and single crystal Ni-base superalloys

open access: yesMATEC Web of Conferences, 2014
Ni-base superalloys are employed as structural materials for the most critical hot gas path components of gas turbines. The current market requirement is to cycle the machine every day, providing energy when it is most needed.
Vacchieri E.   +4 more
doaj   +1 more source

Transformadores. Funcionamento em paralelo na rede elétrica [PDF]

open access: yes, 2011
O crescimento do consumo de energia elétrica verificado nos últimos anos e o aparecimento e evolução dos sistemas de produção de energia por fontes de energia renováveis, como a eólica e fotovoltaica, levam a que sejam necessários ajustes no sistema ...
Silveira, Alexandre Miguel Marques da
core   +2 more sources

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

ENERGIA RENOVÁVEL: ENERGIA SOLAR FOTOVOLTAICA RESIDENCIAL

open access: yesRECIMA21 - Revista Científica Multidisciplinar - ISSN 2675-6218, 2022
Este trabalho tem o objetivo de realizar um estudo sobre a energia solar fotovoltaica, informando que é uma energia obtida através da conversão direta da luz em eletricidade por meio do efeito fotovoltaico. A célula fotovoltaica é um dispositivo fabricado com material semicondutor, é a unidade fundamental desse processo de conversão.
Luis Otavio Viana   +2 more
openaire   +1 more source

Caracterização físico-química da carga dissolvida dos rios Jundiaí e Capivari, São Paulo [PDF]

open access: yesGeochimica Brasiliensis, 2014
Para a caracterização físico-química da carga dissolvida dos rios Jundiaí e Capivari, foram quantificadas, durante o período de abril de 2011 a dezembro de 2012, as concentrações dos principais parâmetros físico-quimicos, pH, condutividade elétrica ...
Helder de Oliveira   +4 more
doaj  

Homogeneous Continuous-Time, Finite-State Hidden Semi-Markov Modeling for Enhancing Empirical Classification System Diagnostics of Industrial Components

open access: yesMachines, 2018
This work presents a method to improve the diagnostic performance of empirical classification system (ECS), which is used to estimate the degradation state of components based on measured signals.
Francesco Cannarile   +4 more
doaj   +1 more source

The horocycle flows from a Hamiltonian viewpoint [PDF]

open access: yes, 2012
In questa tesi di laurea Magistrale ci occupiamo del flusso di orociclo e del flusso geodetico sul piano iperbolico e sui suoi quozienti, cercando di fornire una referenza quanto più possibile completa e esaustiva.
ASSELLE, LUCA
core  

Synergetic Combination of Carbon Xerogels, Graphene Oxide and nano‐ZnO for Aqueous and Organic Supercapacitors

open access: yesBatteries &Supercaps, Volume 8, Issue 3, March 2025.
This work proposes the synthesis of carbon‐based nanostructured materials obtained using ZnO as both nanos‐ template and catalysts simultaneously. During the synthesis, GO was used as a stabiliser, preventing the collapse of the 3D structure and improving its properties in terms of capacitance and surface area.
Rusbel Coneo‐Rodríguez   +5 more
wiley   +1 more source

Methodology of calculating on-board equipment arranging coordinates with preliminary estimate of on-board cable system mass

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The article proposes a method for optimizing the layout of on-board equipment in spacecraft compartments according to the criterion of the minimum mass of the on-board cable system.
A. A. Belyakov   +4 more
doaj   +1 more source

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