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Emerging Technology is Changing the Character of Warfare
( Hammes Thomas ) 국방대학교 안보문제연구소 2021 The Korean Journal of Security Affairs Vol.26 No.2
Emerging technology is changing the charater of warfare. The combination of pervasive surveillance with cheap, long-range, autonomous precision weapons means the defense is becoming tactically dominant again. This offers great opporutnities for the ROK to increase the effectiveness of its defenses while spending less money.
Hydrogenase Enzymes and Their Synthetic Models: The Role of Metal Hydrides
Schilter, David,Camara, James M.,Huynh, Mioy T.,Hammes-Schiffer, Sharon,Rauchfuss, Thomas B. American Chemical Society 2016 Chemical reviews Vol.116 No.15
<P>Hydrogenase enzymes efficiently process H-2 and protons at organometallic FeFe, NiFe, or Fe active sites. Synthetic modeling of the many H(2)ase states has provided insight into H(2)ase structure and mechanism, as well as afforded catalysts for the H-2 energy vector. Particularly important are hydride-bearing states, with synthetic hydride analogues now known for each hydrogenase class. These hydrides are typically prepared by protonation of low-valent cores. Examples of FeFe and NiFe hydrides derived from H-2 have also been prepared. Such chemistry is more developed than mimicry of the redox-inactive monoFe enzyme, although functional models of the latter are now emerging. Advances in physical and theoretical characterization of H(2)ase enzymes and synthetic models have proven key to the study of hydrides in particular, and will guide modeling efforts toward more robust and active species optimized for practical applications.</P>