Results 51 to 60 of about 117,119 (283)

Strengthen the Power Conversion Efficiency of Solar Cell Based RbGeI3: Numerical Approach

open access: yesEast European Journal of Physics
The current study employs numerical simulations via the SCAPS-1D platform to investigate the performance of solar cells based on perovskite, with RbGeI3 utilized as an absorber material possessing a wide bandgap of 1.31 eV. Through systematic exploration
Lazhar Loumachi   +7 more
doaj   +1 more source

Progresses in Synthesis of Polycarboxylate Superplasticizer

open access: yesAdvances in Civil Engineering, 2020
The prerequisite to synthesize PCE was to prepare new macromonomers with controlled molecular mass, adjustable hydrophilic-lipophilic groups, long-chain alkyl groups, and large terminal hydroxyl groups as well.
Shuncheng Xiang, Yingli Gao, Caijun Shi
doaj   +1 more source

Selenium‐Incorporated Polymerized Nonfullerene Acceptors/SWCNT Composites with Polymer‐Assisted n‐Doping for High‐Performance Organic Thermoelectrics

open access: yesAdvanced Functional Materials, EarlyView.
Selenium‐incorporated polymerized nonfullerene acceptor PCB2Se forms a strong supramolecular complex with SWCNTs, enabling a record‐high zT of 0.29. Sequential N‐DMBI doping, mediated through a polymer‐assisted electron‐transfer pathway, successfully converts the PCB2Se/SWCNT composite into an efficient n‐type material with an impressive power factor ...
Chi‐Chun Tseng   +8 more
wiley   +1 more source

Programa Ciência na Escola (PCE)

open access: yesRevista e-curriculum, 2023
A iniciação científica tem seu papel transformador à medida que introduz no cotidiano escolar o fazer científico. Diante disto, este artigo questiona de que maneira a realidade educacional amazônica é contemplada com a perspectiva do ensino com pesquisa.
Dariany Andrade de Souza   +1 more
openaire   +1 more source

Polynomial-Chaos-based Kriging

open access: yes, 2015
Computer simulation has become the standard tool in many engineering fields for designing and optimizing systems, as well as for assessing their reliability.
Schoebi, R., Sudret, B., Wiart, J.
core   +1 more source

A Universal Interfacial Dipole Strategy for Defect Suppression in Inverted Perovskite Solar Cells With Tunable Bandgaps

open access: yesAdvanced Functional Materials, EarlyView.
A 2D heterointerface with a two‐site anchor bridge suppresses nonradiative recombination at the perovskite/C₆₀ interface by reducing surface defects, elevating the Fermi level, and strengthening the electric field. This strategy enables efficient electron extraction, delivering 26.32% efficiency, 1.217 V Voc, excellent operational stability, and broad ...
Chaohui Li   +27 more
wiley   +1 more source

Degradation of tetrachloroethylene by zero valent iron nanoparticles in the presence of a natural groundwater bacterial biofilm in a sandy porous media

open access: yesHeliyon, 2021
Biofilms are naturally present in aquifers and can interact with zero valent iron nanoparticles (nZVI) used as remediation agents in contaminated groundwater; thereby they may alter nZVI reactivity towards targeted contaminants in porous media ...
Marc Crampon   +3 more
doaj   +1 more source

Validation of Expert Systems: Personal Choice Expert -- A Flexible Employee Benefit System [PDF]

open access: yes, 1992
A method for validating expert systems, based on psychological validation literature and Turing\u27s imitation game, is applied to a flexible benefits expert system. Expert system validation entails determining if a difference exists between expert and
Sturman, Michael C.   +1 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

UMA ANÁLISE ESPACIAL DO CRESCIMENTO ECONÔMICO DO ESTADO DO PARANÁ PARA OS ANOS 2000 e 2004

open access: yesRevista Brasileira de Estudos Regionais e Urbanos, 2015
Este trabalho testa empiricamente o crescimento econômico espacial dos municípios do Estado do Paraná para os anos de 2000 e 2004, levando-se em consideração as variáveis: PIB, consumo de energia elétrica, número de matrículas no nível médio e superior ...
Marcela Nogueira Ferrario   +3 more
doaj  

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