Results 51 to 60 of about 22,450 (171)

Non-diagonal Charged Lepton Yukawa Matrix: Effects on Neutrino Mixing in Supersymmetry

open access: yes, 2011
Generally the diagonalization of the mass matrix of the charged leptons is a part of the neutrino UPMNS matrix. However, usually this contribution is ignored by assuming a diagonal mass matrix for charged leptons.
Benjamin Koch   +3 more
core   +1 more source

Shared visiting in Equator city [PDF]

open access: yes, 2002
In this paper we describe an infrastructure and prototype system for sharing of visiting experiences across multiple media. The prototype supports synchronous co-visiting by physical and digital visitors, with digital access via either the World Wide Web
Benford, S.   +14 more
core   +4 more sources

High scale mixing unification and large neutrino mixing angles [PDF]

open access: yes, 2003
Starting with the hypothesis that quark and lepton mixings are identical at or near the GUT scale, we show that the large solar and atmospheric neutrino mixing angles together with the small reactor angle $U_{e3}$ can be understood purely as a result of ...
A. Bandyopadhyay   +60 more
core   +2 more sources

Neutrinoless Double Beta Decay in Type I+II Seesaw Models

open access: yes, 2015
We study neutrinoless double beta decay in left-right symmetric extension of the standard model with type I and type II seesaw origin of neutrino masses.
Borah, Debasish, Dasgupta, Arnab
core   +1 more source

Valorization of paper sludge for bioethanol and biogas production

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study evaluated the physicochemical properties and bioenergy potential of three distinct paper sludges: virgin pulp sludge (VP‐PS), corrugated cardboard sludge (CR‐PS), and tissue and printing paper sludge (TPR‐PS). From the experimental runs, VP‐PS exhibited the highest ethanol yield (46.8 ± 3.7 g L−1, 87.4% conversion), which can be ...
Anné Williams   +5 more
wiley   +1 more source

On the Usability of Pt/Al2O3 Catalysts for Exhaust Gas After Treatment in Ammonia Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonia engines emit no CO2 but exhibit elevated emissions of NH3 and NOx, where conventional SCR systems are not effective due to the significant excess of NH3. This study investigates Pt‐based oxidation catalysts in a bypass configuration to adjust the NH3/NOx ratio, analyzing catalyst parameters and their impact on N2O formation to identify optimal ...
J. Breuer   +2 more
wiley   +1 more source

Homogeneous nucleation in spatially inhomogeneous systems [PDF]

open access: yes, 1990
Homogeneous nucleation of a vapor in the presence of the loss of clusters by diffusion and thermophoretic drift is investigated. Analytical results are obtained for the cluster size distribution and the rate of nucleation by solving the modified ...
Okuyama, K., Seinfeld, J. H., Shi, G.
core   +1 more source

Modelling of continuous low‐temperature emulsion co‐polymerization in 3D‐printed reactor

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
A kinetic model for the emulsion copolymerization of butyl acrylate/styrene at low temperatures is proposed and validated against experiments with a redox initiator system. The model was successfully transferred to a 3D‐printed tubular reactor and conversions of more than 80% and small particles sizes below 40 nm were observed.
Ferel Issa   +2 more
wiley   +1 more source

Residence time distribution measurements in an external-loop airlift reactor: Study of the hydrodynamics of the liquid circulation induced by the hydrogen bubbles [PDF]

open access: yes, 2011
A detailed study of the residence time distribution (RTD) analysis of liquid phase has been performed in an external-loop airlift reactor of 20 L nominal volume, regarded as a global unit and discriminating its different sections (riser, gas–liquid ...
Delmas, Henri   +3 more
core   +2 more sources

Vapor‐Phase Synthesis of Potassium‐Doped Polymeric Carbon Nitride Photocatalytic Panels

open access: yesSmall, EarlyView.
Potassium‐doped polymeric carbon nitride (CN) panels are synthesized via a vapor‐phase condensation method over KCl‐coated substrates. Temperature‐controlled growth and K+ incorporation induce cyano‐group defects, enhance light absorption, and improve charge dynamics, leading to superior photocatalytic H2O2 production.
Devesh Garg   +9 more
wiley   +1 more source

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