The phrase "a simple but rigorous" is correct and usable in written English.
It can be used to describe something that is straightforward yet thorough or demanding in its requirements or standards.
Example: "The course offers a simple but rigorous approach to learning the fundamentals of programming."
Alternatives: "straightforward yet thorough" or "easy yet demanding".
The present paper develops a simple but rigorous trigeneration plant model for designing, optimizing and simulating small medium scale plants including a realistic biomass gasification model.
The compaction process is then modelled as a self-similar contraction of unit (average) cells, in contrast to commonly used phenomenological assumptions, yielding a simple but rigorous relation between the densification density and centre-to-centre approach of adjacent powder particles.
The contribution of this paper is to provide a simple but quite rigorous analytical method for computing the cogging torque in surface mounted permanent magnet synchronous machines.
The chapter starts with a conceptual and mathematical description of GPR, including the most useful analytical models of radar propagation on the ground and a simple, but a rigorous model of radar scattering leads to a consistent formalis for 3D imaging.
It is worth emphasizing that the aim of our analytical framework is to develop a simple but scientifically rigorous model that may be used to predict the optimum antibody kinetic properties and concentration required to achieve a desired protective effect rather than develop a detailed, biologically accurate model that captures all the details of the toxin internalization process.
The current difficulty in finding a discharge model to inverse source problems of electromagnetics should invite to make use of reasonably simple but rigorous formulations.
By design, there is no semantic gap between the programming and machine execution levels of the controller, enabling the safety licensing of application software by extremely simple, but rigorous methods, viz., diverse back translation and inspection.
By design, there is no semantic gap between the programming and machine execution levels, enabling the safety licensing of application software by extremely simple, but rigorous methods, viz., diverse back translation and inspection.
The objective of experimental study is to discover the change rules of permeability variation caused by production and injection, and to generate simple but rigorous data for reservoir simulation.
Here we use a simpler, but not so rigorous approach.
