Results 111 to 120 of about 13,415 (262)

Capacidades adaptativas como estratégia de mudança em ambientes complexos: Parceria público privado no sistema prisional

Revista Direitos Humanos e Democracia
Este estudo investiga as capacidades adaptativas da empresa JSOMA, atuante em uma Parceria Público-Privada (PPP) no sistema prisional brasileiro, com foco na Penitenciária Modulada Estadual de Ijuí-RS.
Cidinei de Oliveira Cichoves, Euselia Paveglio Vieira, Jorge Oneide Sausen   +2 more
doaj   +1 more source

The Unfolding Desert: Observed Structural Drying and Projected Aridity Risks in a Brazilian Family Farming Citizenship Territory

Land Degradation &Development, EarlyView.
ABSTRACT Aridification in Semiarid regions is a recurring theme in Intergovernmental Panel on Climate Change (IPCC) reports and has been documented in Northeastern Brazil. This study analyzes the spatiotemporal dynamics of aridification in the Lower São Francisco River “Citizenship Territory” (Sergipe and Alagoas) at a fine spatial resolution (~1 km ...
Carlos Eduardo Pacheco Lima, Júlio Roberto Araújo de Amorim, Marcus Aurélio Soares Cruz, Mariana Rodrigues Fontenelle   +3 more
wiley   +1 more source

Uncertainty, Sensitivity, and Efficiency Analysis of a Hybrid Piezoelectric–Electromagnetic Energy Harvester

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Digitalization and emerging technologies are increasing the demand for wireless sensing and the Internet of Things (IoT), which provide opportunities for autonomous sources of electricity in the form of energy harvesting systems. This paper focuses on the challenges in hybrid piezoelectric‐electromagnetic kinetic energy harvesting systems that
Petr Sosna, Damian Gaska, Zdeněk Hadaš
wiley   +1 more source

Transforming Coastal Waste: Algae‐Based Recycled HDPE Composites for Enhanced Sustainability

Polymer Engineering &Science, EarlyView.
Manufacturing and characterization of composites from beach‐cast algae waste combined with recycled high‐density polyethylene. ABSTRACT Growing environmental concerns are accelerating the development of more sustainable materials. This study successfully created a composite material by combining recycled high‐density polyethylene (HDPE) as the matrix ...
Patricia Cabrera‐García, Aday Romero, Pedro Rodríguez, María D. Marrero, Antonio N. Benítez   +4 more
wiley   +1 more source

Extension of Isoconversional Analysis to Diffusion‐Controlled Epoxy Cure Kinetics: Comparison With Model‐Fitting Approaches

Polymer Engineering &Science, EarlyView.
Extending isoconversional analysis of DSC data to diffusion‐controlled regimes captures the rise in apparent activation energy upon vitrification and yields TTT diagrams of RTM6 epoxy resin that remain accurate when diffusion, rather than chemistry, governs the cure rate.
Didina‐Ramona‐Casandra Cârstea, Sihem Zaidi, Daniel Sanchez‐Rodriguez, Jordi Farjas, Andrei Rotaru, Josep Costa   +5 more
wiley   +1 more source

Sustainable PEG‐Based Shape‐Stabilized Phase Change Materials Using Raw Pine Cone as a Low‐Cost Filler and Graphite for Enhanced Thermal Conductivity

Polymer Engineering &Science, EarlyView.
Preparation of sustainable PEG‐based ssPCMs using a PC‐based low‐cos filler and G as a thermal enhancer. PEG 6000 is incorporated into the PC/G matrix through mixing to obtain the shape‐stabilized PCM for thermal energy storage applications. ABSTRACT This study investigates the development of a novel shape‐stabilized phase change material (ssPCM ...
Amira Akrouti, Abdelwaheb Trigui, Mónica Delgado, Miguel Navarro, Ana Lazaro, Rym Hassani   +5 more
wiley   +1 more source

Aggregation‐induced enhanced emission for quantification of recycled content in automotive plastics

Polymer International, EarlyView.
Quantifying recycled content in four automotive plastics using aggregation‐induced enhanced emission showed that performance was highly dependent on both polymer and additive chemistries. Abstract The use of plastics in the automotive industry is increasing due to their versatility, light weight and affordability.
Saleh S Soomro, Chaehwan Hong, Michael P Shaver   +2 more
wiley   +1 more source

AMBIENTE E DESENVOLVIMENTO REGIONAL

, 2012
O texto trata de identificar os limites da relação ambiente-desenvolvimento. Para tanto trabalha questões conceituais sobre desenvolvimento e progresso no atual paradigma da sociedade ocidental. Aborda a desconexão entre economia e natureza, considerando o conceito de crescimento e desenvolvimento como desdobramentos da visão economicista.
openaire   +1 more source

Extruder‐based 3D printing of eco‐friendly polymers

Polymer International, EarlyView.
Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang, Rene Sattler, Paul‐Maximilian Runge, Katalee Jariyavidyanont, Mengxue Du, Holm Altenbach, Mario Beiner, René Androsch   +7 more
wiley   +1 more source

MIGRAÇÃO RURAL-URBANO, CAPITAL HUMANO E CRESCIMENTO DE CIDADES

Revista Brasileira de Estudos Regionais e Urbanos, 2015
No presente trabalho apresenta-se um modelo no qual a economia é dividida em uma região rural e uma urbana. Por suposição considera-se que a acumulação de capital humano ocorre apenas na região urbana.
Bruno Dutra Badia, Rubens Augusto de Miranda   +1 more
doaj