'investigated upon' is not correct and usable in written English.
To use it correctly, you would need to rephrase it to: 'investigated'. For example, "The police investigated the crime scene thoroughly."
Obvious enhancement of lasing emission in the specimen was investigated upon exposing to plasma atmosphere.
The proliferation of MH7A cells was also investigated upon expression of the affibody molecules by plasmid transfection.
Hepatocellular carcinoma (HepG2) cell viability was investigated upon exposure to the conjugates and UV light at 240 nm.
We modeled the central warehouse which is investigated upon a continuous review (S-1, S) inventory policy as a (M/M/1) queue model.
In this section, functionality of the proposed models is investigated upon receiving the CP either belong to the attacker or the authorized users.
The proton conductivity of perfluorinated ionomer membranes has been investigated upon several aspects, such as, ion molar content, morphology, synthesis and preparation, temperature, and water content [1, 2].
Further experiments are needed in space to investigate upon steroidogenesis and germ cell differentiation within the testis, to rule out male infertility as a possible consequence, which could be a problem, as life expectancy increases.
The KOUTIE board investigated, and, upon learning from the college that Zanev was a member of the Muslim Students Union and had written his application essay about Muhammad Ali, began the process of stripping Zanev of his citizenship, on the ground of immigration fraud.
Structure activity relationship (SAR) studies of the test compounds were investigated based upon the in-vitro RT inhibitory potency.
The integration of lactic acid fermentation and Reverse Electro-Enhanced Dialysis (REED) is investigated based upon previously developed mathematical models.
The effect of composition on the ternary (NbCr2 TiCr2) C15 phase properties has been investigated, focusing upon the defect structure, elastic properties, and mechanical behavior.
