experimental work vs experimental studies

Some examples from the web:

• Residues in the soil profile in at least five layers shall be determined on termination of experimental work.
• Residues in the soil profile in at least five layers must be determined on termination of experimental work.
• This flexibility allows a laboratory to schedule the experimental work efficiently.
• So, we do a lot of simulation and modeling, and also experimental work, to try to figure out how those two kinds of noise combine to, in the aggregate, produce the predictable behavior of ant colonies.
• the assessment of health effects through experimental work, bio-monitoring, toxicogenomic analyses, computational techniques and analytical tools,
• A research project shall be intended to cover investigative or experimental work with the aim of acquiring further knowledge to facilitate the attainment of specific practical objectives such as the creation or development of products, production processes or services.
• I've published a great deal on this; I cite the experimental work on which my optimism is based, and there's quite a lot of detail there.
• A research project is intended to cover investigative or experimental work with the aim of acquiring further knowledge to facilitate the attainment of specific practical objectives such as the creation or development of products, production processes or services.
• Experimental work on partitioning at the JRC includes research on both aqueous dissolution and pyro-metallurgical processes (in salt media).
• It ties in with my experimental work in fear.
• This experimental work aims at creating a truly international absolute language of cinema based on its complete separation from the language of theatre and literature.
• 'applied research' shall mean investigation or experimental work on the basis of the results of basic research with a view to facilitating the attainment of specific practical objectives such as the creation of new products, production processes or services.
• 'evaluation of the method of analysis' means the thorough assessment of the protocol of the method of analysis as described in the application, including, if appropriate, literature research but not necessarily any experimental work;
• 'basic industrial research' shall mean original theoretical and experimental work whose objective is to achieve better understanding of the laws of science and engineering in general and which might apply to an industrial sector or to the activities of a particular undertaking;
• (c) "evaluation of the method of analysis" means the thorough assessment of the protocol of the method of analysis as described in the application, including, if appropriate, literature research but not necessarily any experimental work;
• assessment of health effects through experimental work, biomonitoring, toxicogenomic
• assessment of health effects through experimental work, biomonitoring, toxicogenomic analyses, computational techniques and analytical tools;
• Furthermore, we also naturally want a much faster transfer of the results between experimental work and what ultimately benefits the patient, and we refer to this with an unusual word, namely 'translational research'.

Some examples from the web:

• Therefore experimental studies on tumorigenic or mutagenic effects - particularly in heterologous species - are not considered necessary.
• Where available, the results of relevant experimental studies must be reported.
• The results of any experimental studies must be reported.
• Evidence of efficacy may also be provided by other experimental studies (e.g. bioavailability) or by reference to scientific literature.
• positive data from experimental studies in man (see section 1.3.2.4.7);
• Positive data from experimental studies in man (see also 3.1.1).
• However, in some experimental studies quail have been reported to be resistant to some HPAI strains.
• Each batch of the feedingstuffs used in the experimental studies on animals must be analysed for the concentration of the relevant active substances using an appropriate method and a report of the analytical results must be provided.
• positive data from experimental studies on humans (see Article 7(3));
• experimental studies validating the manufacturing process, where a non-standard method of manufacture is used or where it is critical for the product,
• experimental studies validating the manufacturing process and where appropriate a process validation scheme for production scale batches,
• Experimental studies have suggested that nitric oxide and also nitrogen dioxide may react chemically with surfactant and/ or surfactant proteins.
• Since clinical experience provides no evidence for carcinogenic potential of immunoglobulins, no experimental studies in heterogeneous species were performed.
• Experimental studies on the carcinogenicity of CrVI examined absorption by inhalation and by both the intramuscular and the intratracheal route.