Min Kyu Song

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Recently, there has been great interest in flexible and wearable energy devices for applications in flexible and stretchable electronics. Even though future developments are moving toward thinner, lighter, and cheaper solutions, many existing energy-harvesting and storage devices are still too bulky and heavy for intended applications. For example,(More)
The multichip module(MCM) packaging technology has been used for the ATM(asynchronous transfer mode) switch system since it provides the high throughput performance as well as the miniaturization of electronic system. The authors have developed a new MCM of 16 X 16 ATM switching element, which handle a signal throughput of 2.48 Gbps with routing 16 trunk(More)
We report the concise, biomimetic total synthesis of the dimeric, Diels-Alder natural product griffipavixanthone from a readily accessible prenylated xanthone monomer. The key step utilizes a novel intermolecular [4+2] cycloaddition-cyclization cascade between a vinyl p-quinone methide and an in situ generated isomeric diene promoted by either Lewis or(More)
In this paper, we discuss some conditions for LPI signals, and propose a system with multiple users requiring these LPI properties using the optimal families of polyphase sequences recently discovered by Park et. al. We discuss and prove the bound on the key space for candidates, and conclude that our system is more secure than those employing encrypted(More)
In this paper, we propose a new construction of perfect p<sup>k</sup>-ary sequences of period p<sup>k</sup>, where p is an odd prime and k &#x2265; 2 is a positive integer, based on cubic polynomials over the integers modulo p<sup>k</sup>. We show that, for some appropriate parameters, it generates perfect polyphase sequences which are not the generalized(More)
In this paper, we show that the cross-correlation of two properly chosen column sequences from the array structure of two different Sidelnikov sequences of periods q<sup>e</sup>-1 and q<sup>f</sup> - 1, where e &#x2260; f, is bounded by (e+f-1)&#x221A;q+1. From this result, we construct new sequence families by combining sequence families from the array(More)
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