Results 71 to 80 of about 173,944 (192)
Tecnologia social: uma estratégia para o desenvolvimento [PDF]
, 2004 Esta publicação apresenta reflexões de diversos representantes de instituições governamentais, do terceiro setor, da sociedade civil e de universidades sobre o tema da Tecnologia ...
Antonio E. Lassance, Jr. +13 more
core
Specific cutting energy consumption in a circular saw for eucalyptus stands WM01 and MN463 [PDF]
, 2011 Modern technologies for continuous carbonization of Eucalyptus sp. require special care in wood cutting procedures. Choosing the right tool, cutting speeds and feed rates is important to manage time and energy consumption, both of which being critical ...
Gomes Gontijo, Thiago +5 more
core +2 more sources
Land Degradation &Development, EarlyView.ABSTRACT In recent years, biochar has been studied for its range of applications. Recognized by the IPCC as a key Carbon Dioxide Removal (CDR) strategy, it also stands out as an important tool for reclaiming degraded lands, including vast global areas affected by salinity, such as those in China, India, and Australia.
Juciane Vieira de Assis Freire +12 more
wiley +1 more source
physica status solidi (RRL) – Rapid Research Letters, EarlyView.Energetic particles make space a harsh environment that solar cells must endure. This study demonstrates that proton flux critically affects radiation damage in Cu(In,Ga)Se2 solar cells. By irradiating identical cells at different fluxes, a flux‐dependent balance between defect generation and dynamic annealing was revealed.
Tiago V. Fernandes +7 more
wiley +1 more source
Quantum Resonator as a Directional Quantum Emitter
Advanced Quantum Technologies, EarlyView.A single‐photon source based on a two‐photon Jaynes–Cummings system features a resonator acting as the quantum emitter rather than the two‐level system. In this configuration, enhanced efficiency, purity, and indistinguishability are achieved, while robustness against dephasing, reduced energy dissipation, and broader implementation prospects for ...
Luiz O. R. Solak +4 more
wiley +1 more source
Caderno Brasileiro de Ensino de Física, 2021 Este documento explorou os laboratórios on-line e suas potencialidades, para atividades práticas em disciplina de Física no Ensino Médio. Os laboratórios on-line podem apoiar as atividades experimentais, que se constituem em um dos aspectos-chave nos ...
Juarez Bento Silva +3 more
doaj +1 more source
, 2018 2 Universidade Federal de Viçosa, Departamento de Engenharia Agrícola/ Viçosa MG, Brasil. 3 Universidade Federal do Oeste da Bahia, Centro das Ciências Exatas e das Tecnologias/ Barreiras BA, Brasil.
C. D. Coelho +5 more
semanticscholar +1 more source
Social, Technological, Economic, and Policy Factors in the Circular Economy Transition in Brazil
Sustainable Development, EarlyView.ABSTRACT A well‐functioning circular economy (CE) integrates resilience across economic, environmental, and social dimensions. This study identifies key drivers and barriers to Brazil's CE transition through 20 semi‐structured interviews with stakeholders. Major sociocultural barriers include inadequate education and limited CE awareness, while growing
Alejandro Gallego‐Schmid +9 more
wiley +1 more source
Em Extensão, 2020 Este texto apresenta ações de extensão universitária desenvolvidas na Escola Estadual de Ensino Médio Dr. Karlos Kluwe, no município de Bagé-RS, no âmbito do projeto “Desenvolvimento de uma base de dados da bacia hidrográfica do Rio Negro-RS”, aprovado ...
Alexandro Gularte Schäfer
doaj +1 more source
Simulador aplicado ao sistema de filas de espera [PDF]
, 2008 Trabalho de projecto de mestrado em Engenharia Informática, apresentado à Universidade de Lisboa, através da Faculdade de Ciências, 2008Este documento descreve o trabalho realizado no âmbito da disciplina de Projecto em Engenharia Informática, do ...
Quental, Luís Miguel Rocha Libório de Oliva
core