Results 61 to 70 of about 5,976,031 (294)

Selection of Launch Sites: An Ensemble of MCDM Methods with Discrete Single-Valued Neutrosophic Number Evaluation

open access: yesAerospace
Space economy involves all activities and resource allocations that generate additional economic and societal benefits through space exploitation. The development of space infrastructure enables a wider range of economic activities.
Napat Harnpornchai, Tatcha Sudtasan
doaj   +1 more source

Digital Light Processing of Thermoplastic Poly(methyl methacrylate) Photoresin Combined With Solvent Vapor Smoothing

open access: yesAdvanced Engineering Materials, EarlyView.
A thermoplastic PMMA‐based photoresin enables high‐resolution DLP printing followed by solvent‐vapor smoothing. The treatment reduces staircase‐induced surface roughness from 2.33 µm to 129 nm and increases visible‐light transmittance from approximately 30% to 80%, providing a route toward transparent PMMA components for rapid prototyping and non ...
Rozhin Heydarpour   +5 more
wiley   +1 more source

Protocols for postcapitalist finance: A reply

open access: yesFinance and Society
Protocols for Postcapitalist Expression is a book published by members of the Economic Space Agency. Its objective is to frame protocols (social agreements) on which to build the conditions for an economic system that is distributed (no centralised ...
Dick Bryan
doaj   +1 more source

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

open access: yesAdvanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad   +8 more
wiley   +1 more source

Measuring and mapping the European space economy [PDF]

open access: yes
openL'economia spaziale europea è soggetta a processi di misurazione e mappatura di importanza fondamentale. Tali sforzi richiedono una comprensione completa dei vari elementi che compongono questo complesso panorama economico.
BISEGNA, MARCO
core  

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

El panorama teórico de la economía regional y los modelos de análisis territorial

open access: yesRevista Finanzas y Política Económica, 2010
Una gran parte de la teoría económica clásica se construyó sin tomar en consideración la variable espacio. En general, los enfoques se han basadoesencialmente en el mercado, planteando la movilidad de los factores de producción, y de los bienes y ...
José Agustín Arias V.   +1 more
doaj  

Toward a Blue Economy : A Pathway for Sustainable Growth in Bangladesh [PDF]

open access: yes, 2018
This report aims to synthesize the current theory and practice of the blue economy concept to govern economic activity linked to the ocean, and to provide a framework for the Government of Bangladesh to analyze its potential. With the peaceful resolution
Colgan, Charles   +5 more
core  

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Transformation of Albania in transition. Population and socio-economic aspects

open access: yesSpace, Society, Economy, 2013
Praca omawia zmiany ludnościowe i społeczno-ekonomiczne w Albanii w okresie przejścia demograficznego rozpatrywane w powiązaniu z położeniem geograficznym, warunkami naturalnymi i politycznymi.
Sokol Axhemi
doaj   +1 more source

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