Alexander Duncan Langmuir

Gradient Flow Structure for Domain Relaxation in Langmuir Films

We describe a gradient flow structure for the inviscid Langmuir layer Stokesian subfluid model introduced recently by Alexander et al [1].

Epidemiologic Basis for Eradication

Veterinary public health and Alexander D. Langmuir.

Alexander Duncan Langmuir was recruited by the late Joseph Mountin, as I (1. H. S.) was after World War II, with the challenge to explore new areas that related to public health. Mountin was a leader who gained fame by challenging the old order and anticipating future needs (1). He foresaw the need for an agency such as the Communicable Disease Center (now the Centers for Disease Control and Pr...

Nonequilibrium orientational patterns in two-component Langmuir monolayers.

A model of a phase-separating two-component Langmuir monolayer in the presence of a photoinduced reaction interconverting two components is formulated. An interplay between phase separation, orientational ordering, and reaction is found to lead to a variety of nonequilibrium self-organized patterns, both stationary and traveling. Examples of the patterns, observed in numerical simulations, incl...

Traveling waves and nonequilibrium stationary patterns in two-component reactive langmuir monolayers.

A simple kinetic model of a two-component phase-separating Langmuir monolayer with a chemical reaction is proposed. Its analysis and numerical simulations show that nonequilibrium periodic stationary structures and patterns of traveling stripes can spontaneously develop. The nonequilibrium phase diagram of this system is constructed and the properties of the patterns are discussed.