To create a well-diversified portfolio. This might be explained by the truth that institutional investors are striving to make sure that their portfolios will probably be effectively diversified beneath a diversity of market situations. Unfortunately, there is certainly nevertheless considerable uncertainty with Seclidemstat Histone Demethylase regard to portfolio size and diversification rewards throughout crisis periods. A recent review in the literature that covers the period of GFC has questioned the effectiveness of portfolio diversification throughout economic turmoil. Further analysis is warranted to examine the effect with the Covid-19 crisis, at the same time as expansionary monetary policy and extremely low interest rates, around the variety of stocks in well-diversified portfolios. Unique attention should be paid towards the study of emerging and underdeveloped capital markets inside the context of diversification advantages and possibilities.Author Contributions: Conceptualization, A.Z., A.O. and a.A.-B.; methodology, A.Z., A.O. in addition to a.A.-B.; formal evaluation, A.Z., A.O. along with a.A.-B.; investigation, A.Z., A.O. as well as a.A.-B.; resources, A.Z., A.O. as well as a.A.-B.; information curation, A.Z., A.O. along with a.A.-B.; writing–original draft preparation, A.Z., A.O. and a.A.-B.; writing–review and editing, A.Z.; visualization, A.Z. along with a.O.; supervision, A.Z. All authors have study and agreed to the published version of the manuscript. Funding: This study received no external funding. Institutional Assessment Board Statement: Not applicable. Informed Consent Statement: Not applicable. Information Availability Statement: The dataset employed within this study can be out there upon request. Conflicts of Interest: The authors declare no conflict of interest.
applied sciencesArticleNumerical Simulation of Gas Hydrate Production Working with the Cyclic Depressurization Approach within the Ulleung Basin with the Korea East SeaTaehun Lee 1 , Joo Yong Lee 1 , Taewoong Ahn 1 and Han Am Son 2, Petroleum and Marine Study Division, Korea Institute of Geosciences and Minerals, Daejeon 34132, Korea; [email protected] (T.L.); [email protected] (J.Y.L.); [email protected] (T.A.) Division of Power Resources Engineering, Pukyong National University, Busan 48547, Korea Correspondence: [email protected]; Tel.: 82-051-629-Citation: Lee, T.; Lee, J.Y.; Ahn, T.; Son, H.A. Numerical Simulation of Gas Hydrate Production Employing the Cyclic Depressurization Technique in the Ulleung Basin on the Korea East Sea. Appl. Sci. 2021, 11, 9748. https:// doi.org/10.3390/ app11209748 Academic Editor: Luca Fiori Received: 17 September 2021 Accepted: 15 October 2021 Published: 19 OctoberAbstract: The depressurization process is generally known as essentially the most productive and effective approach for effective methane recovery from hydrate deposits. Nevertheless, this system can cause considerable subsidence due to the elevated productive pressure. Maintenance of Tianeptine sodium salt In Vivo geomechanical stability is needed for sustainable production of gas from gas hydrate deposits. In this study, the cyclic depressurization process, which makes use of changing the bottomhole pressure and production time for the duration of primary and secondary depressurization stage, was utilized so as to raise stability within the Ulleung Basin in the Korea East Sea. Many case research had been carried out with alternating bottomhole pressure and production time from the primary and secondary depressurization stages more than 400 days. Geomechanical stability was drastically enhanced, when cumulative gas production was reasonably significantly less reduced or almost maintained. Specially, the cumulative gas production of t.