User profiles for Peter Johns

Peter Johns

Associate Professor, University of Ottawa
Verified email at toh.ca
Cited by 906

A symmetrical condensed node for the TLM method

PB Johns - IEEE Transactions on Microwave Theory and …, 1987 - ieeexplore.ieee.org
A new symmetrical condensed node is developed for the analysis of electromagnetic waves
by the transmission-line modeling (TLM) method of numerical analysis.The new node has …

A randomized trial comparing octylcyanoacrylate tissue adhesive and sutures in the management of lacerations

…, T Sutcliffe, M Jarmuske, J Maw, I Stiell, P Johns - Jama, 1997 - jamanetwork.com
Objective. —To assess the effectiveness of a new tissue adhesive for laceration closure.
Design. —A prospective, randomized controlled trial. Setting. —An adult teaching hospital. …

Tissue adhesive versus suture wound repair at 1 year: randomized clinical trial correlating early, 3-month, and 1-year cosmetic outcome

…, T Sutcliffe, M Jarmuske, J Maw, I Stiell, P Johns - Annals of emergency …, 1998 - Elsevier
Study Objective: To compare the 1-year cosmetic outcome of wounds treated with octylcyanoacrylate
tissue adhesive and monofilament sutures and to correlate the early, 3-month, and …

Use of the transmission-line modelling (tlm) method to solve non-linear lumped networks

PB Johns, M O'Brien - Radio and Electronic Engineer, 1980 - IET
The transmission-line modelling (tlm) method presents a new approach to the solution of
lumped networks by providing discrete models for components. Errors become due to the …

The design of coupled microstrip lines

…, TR Rowbotham, PB Johns - IEEE Transactions on …, 1975 - ieeexplore.ieee.org
Although graphical results and formulas are available for the design of microstrip couplers,
the design procedure is hampered because even- and odd-mode impedances are always …

Usage of the HINTS exam and neuroimaging in the assessment of peripheral vertigo in the emergency department

…, ESH Kwok, D Lelli, P Johns… - … -Head & Neck …, 2018 - journals.sagepub.com
Background Dizziness is a common presenting symptom in the emergency department (ED).
The HINTS exam, a battery of bedside clinical tests, has been shown to have greater …

Terrestrial planarians (Platyhelminthes: Tricladida: Terricola) predaceous on terrestrial gastropods.

L Winsor, PM Johns, GM Barker - Natural enemies of …, 2004 - cabidigitallibrary.org
This chapter describes the taxonomy and systematics of the Tricladida (terrestrial Tricladida,
Bipaliidae, Rhynchodemidae, Geoplanidae), general biology and ecology (physical ecology…

The solution of inhomogeneous waveguide problems using a transmission-line matrix

PB Johns - IEEE Transactions on Microwave Theory and …, 1974 - ieeexplore.ieee.org
A method of applying the transmission-line matrix method to inhomogeneous waveguide
structures is described. The technique uses open-circuit stubs of variable characteristic …

A simple explicit and unconditionally stable numerical routine for the solution of the diffusion equation

PB Johns - International Journal for Numerical Methods in …, 1977 - Wiley Online Library
This paper describes a simple explicit and unconditionally stable numerical routine for the
solution of the diffusion equation using a transmission‐line modelling (TLM) method. The …

On the Relationship Between TLM and Finite-Difference Methods for Maxwell's Equations (Short Paper)

PB Johns - IEEE transactions on microwave theory and …, 1987 - ieeexplore.ieee.org
It is shown that if the expanded node three-dimensional TLM method is operated in a certain
way, then it can be numerically equivalent to a finite-difference method. Some comments are …