Results 181 to 190 of about 165,231 (345)
Computation with spin foam models of quantum gravity [PDF]
, 2008 The focus of this thesis is the study of spin foam models of quantum gravity on a computer. These models include the standard Barrett-Crane (BC) spin foam model, as well as the new Engle-Pereira-Rovelli (EPR) and Freidel-Krasnov (FK) models. New numerical algorithms are developed and implemented, based on the existing Christensen-Egan (CE) algorithm ...
openaire +2 more sources
Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao +5 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando +7 more
wiley +1 more source
Constraint algebra in loop quantum gravity reloaded. II. Toy model of an Abelian gauge theory: Spatial diffeomorphisms [PDF]
, 2013 Adam Henderson +2 more
openalex +1 more source
Synthesis, Crystal Structure, and Optoelectronic Properties of [(n‐/tert‐C4H9)S(CH3)2]PbI3
European Journal of Inorganic Chemistry, EarlyView.Reaction of two isomers of butyldimethylsulfonium cation with PbI2 using solid‐state and solution methods yielded the corresponding organic/inorganic hybrid compounds with high humidity tolerance and 1D crystal structures of [n‐C4H9S(CH3)2]PbI3 and [tert‐C4H9S(CH3)2]PbI3.
Ioannis Koutsoumpogeras +4 more
wiley +1 more source
The Bazaar as a Model for Knowledge Work
Knowledge and Process Management, EarlyView.ABSTRACT This paper presents fieldwork that extends existing metaphors of knowledge work as a process shaped by hierarchical or market forces. A qualitative, ethnographic study of six knowledge‐intensive businesses in two countries identifies striking parallels with the Middle Eastern bazaar in contrast to Western impersonal markets and hierarchies. We
Reed Elliot Nelson +2 more
wiley +1 more source
The Ising model as a window on quantum gravity with matter [PDF]
Romuald A. Janik
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Emergent diffeomorphism invariance in a discrete loop quantum gravity model [PDF]
, 2009 Rodolfo Gambini, Jorge Pullin
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