Results 51 to 60 of about 403,271 (306)

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

Planning sustainable and inclusive transformation: an energy democracy perspective on urban mobility

open access: yesFrontiers in Political Science
Increasingly, calls for more democratic engagement in the mobility transformation are enriching scholarly and policy discussions at the intersection of ‘green’ policies and the goal of a just and inclusive transformation process.
Antonia Graf, Anne J. Kantel
doaj   +1 more source

Overpowered: American domination, democracy and the ethics of energy consumption [PDF]

open access: yes, 2006
The United States has used its overwhelming political and economic power to secure for itself a disproportionate share of the world’s non-renewable energy resources, most of which are located outside of our borders.
Sample, Ruth
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Les enjeux démocratiques de la transition énergétique territoriale : enquête sur la coopérative énergétique citoyenne de Iéna

open access: yesLien Social et Politiques, 2019
Depuis quelques années, les coopératives énergétiques citoyennes se sont positionnées comme des actrices majeures de la transition énergétique allemande.
Thomas Blanchet, Carsten Herzberg
doaj   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui   +17 more
wiley   +1 more source

Towards the liberalization of the energy market: structural changes and implementation challenges of the 2013 Mexican energy reform insights in the energy nexus

open access: yesEnergy Nexus, 2022
Through the decades Mexico has gone through different transition stages in its national energy sector, aiming to adopt the best practices from Europe and North America.
E. Cruz May   +4 more
doaj   +1 more source

Review Of Hiring And Firing Public Officials: Rethinking The Purpose Of Elections By J. Buchler [PDF]

open access: yes, 2012
Few books can be called workmanlike as well as exciting, analytic as well as poignant. Hiring and Firing Public Officials achieves those rare pairings by methodically pursuing an academic coup.
Berger, Ben
core   +2 more sources

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

open access: yesAdvanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina   +11 more
wiley   +1 more source

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