'simultaneous manner' is a correct and usable phrase in written English.
You can use it to refer to two or more things that occur at the same time. For example: "The students completed the task in a simultaneous manner, working together to finish the project."
Recently, efficient strategies have been developed to solve dynamic simulation and optimization problems in a simultaneous manner.
A systematic design methodology is developed in this work to optimize batch process schedules and water-allocation network in a simultaneous manner.
In this study, a rapid reduction of Cr VI) and degradation of 2,4,6-trichlorophenol (2,4,6-TCP) in a simultaneous manner was reported through the catalysis of g-C3N4 under visible light (λ > 420 nm) irradiation.
Although the various drug design and lead optimization activities described to this stage have each been delineated in a step-wise manner for the sake of clarity, it is important to appreciate that their considerations are actually undertaken in a simultaneous manner.
The Reverant is a remarkable film, raw and visceral and spiritual in a way too few films understand how to be in such a simultaneous manner.
Changing R and D in a simultaneous manner, the ratio between the two parameters will be constant.
With an electronic pressure scanning system, wind pressures at these 156 taps are measured in a near-simultaneous manner.
These experiments demonstrated that ABT-737 rapidly de-represses the anti-apoptotic effect of Bcl-2 to trigger cyt c release and caspase activation in a near-simultaneous manner in cells that had been pre-treated with Pfp/GraB.
On the contrary, multitasking activities are carried out in a timely concurrent manner and pediatricians frequently switch between simultaneous task demands [ 1, 6, 7].
A simultaneous task performance was coded when two activities were obviously performed in a timely concurrent manner [ 13, 32].
Once the macroscopic yielding occurs, the major shear band fully transects the sample and propagates in a simultaneous sliding manner.
