Results 41 to 50 of about 54,223 (298)

Advancing Wildfire‐Retardant Materials: Engineering Strategies for Direct and Indirect Suppression

open access: yesAdvanced Engineering Materials, EarlyView.
Here, the evolution, ecological impact, and performance of current fire‐retardant materials and suppression strategies are reviewed, offering an engineering perspective to address existing challenges and propose pathways for the development of more effective, scalable, and sustainable solutions to meet the demands of a changing climate. Wildfires cause
Changxin Dong   +4 more
wiley   +1 more source

e-Government Lessons from South Africa 2001-2011: Institutions, State of Progress and Measurement

open access: yesThe African Journal of Information and Communication, 2012
Electronic governance is the future of public governance globally. Governments that do not make the transition from paper-based systems of public administration to electronic platforms of public governance may swiftly undermine their chances of ...
Fanie Cloete
doaj   +1 more source

Secular stagnation or stagnation policy? A post-Steindlian view* [PDF]

open access: yesEuropean Journal of Economics and Economic Policies: Intervention, 2016
The current debate on secular stagnation is suffering from some vagueness and several other shortcomings. The same is true for the economic policy implications. Therefore, I provide an alternative view on stagnation tendencies based on Josef Steindl's contributions.
openaire   +3 more sources

The Structural Refinement of Commercial‐Purity Copper Processed by Equal Channel Angular Pressing with Low Strain Amplitude

open access: yesAdvanced Engineering Materials, EarlyView.
Equal channel angular pressing of commercial pure copper under low strain amplitude (≈0.48) induces concurrent continuous and localized discontinuous dynamic recrystallization, forming a duplex structure influenced by strain heterogeneity and recovery. Moderate hardening after 4–12 passes results from progressive high‐angle grain boundary formation via
Paula Cibely Alves Flausino   +6 more
wiley   +1 more source

Computational Fluid Dynamics of Blood Flow in an Extracorporeal Blood Circuit for the Analysis of Thrombogenic Hemodynamic Factors

open access: yesJournal of Biomechanical Science and Engineering, 2011
Blood flow in a filter for an extracorporeal blood circuit was analyzed numerically to assess fluid mechanical quantities related to thrombogenesis. Results showed stagnant flow regions, in particular at the downstream side of the ceiling of a filter.
Masanori NAKAMURA   +2 more
doaj   +1 more source

Controlling Legionella pneumophila in Showerheads: Combination of Remedial Intervention and Preventative Flushing

open access: yesMicroorganisms, 2023
Shock chlorination and remedial flushing are suggested to address Legionella pneumophila (Lp) contamination in buildings or during their (re)commissioning. However, data on general microbial measurements (adenosine tri-phosphate [ATP], total cell counts [
Marianne Grimard-Conea   +1 more
doaj   +1 more source

3D‐Printable Near‐Infrared‐Responsive Microscale Cantilever made of the Composite Consisting of Ceramic Particles and Graphene Flakes

open access: yesAdvanced Engineering Materials, EarlyView.
A near infrared‐responsive microscale cantilever is developed using a 3D‐printable composite based on photocurable resin consisting of sepiolite and graphene flakes. The material absorbs 1064 nm light, causing shape transformation with an average displacement of 1.3 mm in 1.7 s. Displacement is measured via video recording.
Karolina Laszczyk   +3 more
wiley   +1 more source

New Model of Economic Growth of Russia

open access: yesУправленческое консультирование, 2018
In the article are analyzed: the reasons of why after successful three years on restoration of the main indicators of pre-crisis 2008 unexpectedly there was a sharp recession of the Russian economy; moreover its transition at first to a stagnation stage ...
Abel Gezevich Aganbegian
doaj  

ФАКТОРНЫЙ АНАЛИЗ ПЕДАГОГИЧЕСКОГО КОНСЕРВАТИЗМА

open access: yesCifra: Психология
Актуальность исследования педагогического консерватизма обусловлена системными преобразованиями профессиональной деятельности преподавателя вуза, требующих совершенствования акмеологических характеристик субъекта педагогической деятельности как условия ...
Авакян И.Б.
doaj   +1 more source

Electricity Generation From Ambient Water Evaporation in the Absence of Sunlight via PVA‐Based Porous Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
In this article, a water‐evaporation driven energy harvester is devised that works even in the absence of sunlight. This is achieved by combining PVA hydrogel with thermoelectrics (TEG) to directly capture energy from water evaporation. Under mild conditions (RH 40%, T of 26 °C, and 2.8 m s−1 wind), 1.71 mW (1.02 W m−2) power can be generated, >3 fold ...
Zichen Gong, Ady Suwardi, Jing Cao
wiley   +1 more source

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