'valuable phenomenon' is correct and can be used in written English.
You can use it to describe something that produces valuable results or has significant and beneficial effects on a situation. For example: "The emergence of the internet has been a valuable phenomenon, providing people with greater access to information and communication than ever before."
Self-crack-healing is one of the most valuable phenomena to overcome the decrease in reliability of ceramics caused by cracking.
Most electrochemical objects are intrinsically nonstationary or contain valuable evolving phenomena.
Though its reputation has waned since, under the dismissive attacks of successive generations of critics anxious to puncture Anderson's self-assurance, Free Cinema has genuine claim to being a valuable, if undernourished, phenomenon.
This system will be very valuable to address phenomena such as EMT, oncogene addiction, oncogene-induced senescence and drug resistance.
Studying the earliest stages of precipitation at the nanoscale is technically challenging but quite valuable as such phenomena reflect important processes such as crystallization and biomineralization.
IPD-MA is particularly valuable when exploring phenomena which tend to be inconsistently analysed or reported; when there is a need for adjustment due to confounding, such as in observational studies, or when evaluating interactions between treatment and a covariate, such as sex (men and women), and geographical location.
Therefore, a careful study of this flow should provide valuable insight into the phenomenon of unsteady separation and the structure of bluff body wakes.
Then, it is considered that to study the hysteresis for various compositions of transition metal is valuable to clarify the phenomenon.
"This review is a valuable introduction to the phenomenon of fish predation by spiders," says David Wise, an ecologist who studies spiders' role in food webs at the University of Illinois, Chicago.
