J. R. Simpson

A closed ammonia cycle within a plant canopy

O. T. Denmead, J. R. Freney, J. R. Simpson · Soil Biology and Biochemistry · 1976 · 235 citations

Botany, Closed Ammonia Cycle, Ammonia +2

Ammonia Flux into the Atmosphere from a Grazed Pasture

O. T. Denmead, J. R. Simpson, J. R. Freney · Science · 1974 · 179 citations

Nitrogen Turnover, Soil Gas, Biogeochemistry +9

Transient gain and cross talk in erbium-doped fiber amplifiers

C.R. Giles, J. R. Simpson, E. Desurvire · Optics Letters · 1989 · 176 citations

Experimental study of soliton transmission over more than 10,000 km in dispersion-shifted fiber

L. F. Mollenauer, M. J. Neubelt, S. G. Evangelides et al. · Optics Letters · 1990 · 136 citations

Photonics, Engineering, Optical Transmission System +13

Evaluation of ^4I_15/2 and ^4I_13/2 Stark-level energies in erbium-doped aluminosilicate glass fibers

E. Desurvire, J. R. Simpson · Optics Letters · 1990 · 128 citations