Daejeon, South Korea
Daejeon, South Korea

KAIST is a public research university located in Daedeok Innopolis, Daejeon, South Korea. KAIST was established by the Korean government with the help of American policymakers in 1971 as the nation's first research oriented science and engineering institution. KAIST has approximately 10,200 full-time students and 1,140 faculty researchers and had a total budget of US$765 million in 2013, of which US$459 million was from research contracts. From 1980 to 2008, the institute was known as the Korea Advanced Institute of Science and Technology. In 2008, the name was shortened to KAIST.KAIST ranked 60th globally and 12th in Asia in the QS World University Rankings , making it the second in the country, while it came second in the independent regional QS Asian University Rankings , considered as the best Korean institution. Moreover, it was placed 16th in Materials Science and 24th in Engineering and Technology by QS of the same year.Times Higher Education ranked KAIST the third best university under the age of 50 years in the world in its 2014 league table. In 2007 KAIST adopted dual degree programs with leading world universities to offer its students diverse educational opportunities and strengthen academic exchanges; since then with Carnegie Mellon University, the Georgia Institute of Technology, Technische Universität Berlin, and the Technische Universität München. Wikipedia.


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Kim K.I.,Max Planck Institute For Biologische Kybernetik | Kwon Y.,KAIST
IEEE Transactions on Pattern Analysis and Machine Intelligence | Year: 2010

This paper proposes a framework for single-image super-resolution. The underlying idea is to learn a map from input low-resolution images to target high-resolution images based on example pairs of input and output images. Kernel ridge regression (KRR) is adopted for this purpose. To reduce the time complexity of training and testing for KRR, a sparse solution is found by combining the ideas of kernel matching pursuit and gradient descent. As a regularized solution, KRR leads to a better generalization than simply storing the examples as has been done in existing example-based algorithms and results in much less noisy images. However, this may introduce blurring and ringing artifacts around major edges as sharp changes are penalized severely. A prior model of a generic image class which takes into account the discontinuity property of images is adopted to resolve this problem. Comparison with existing algorithms shows the effectiveness of the proposed method. © 2010 IEEE.


Li M.,Shantou University | Li D.,Shantou University | O'Keeffe M.,Arizona State University | O'Keeffe M.,KAIST | And 2 more authors.
Chemical Reviews | Year: 2014

A consistent approach to the description on the structures of metal-organic frameworks (MOFs) and related materials are studied in terms of their underlying nets for cases in which these nets have more than two kinds of vertices. For MOFs formed from polytopic linkers, identifying both the basic net in which the linker is considered as a single node and the derived net in which branch points are identified explicitly, is recommended. The intrinsic symmetry of the crystal is that of the derived net, which may be lower than that of the basic net. The net gwg, derived from cds, is an example in which a tetragonal basic net has only a monoclinic derived net of minimal transitivity. Structures with different derived nets that may have the same symmetry can be differentiated. The basic nets with transitivity 3 2 (type iv of section 7) are particularly important in this regard. Several MOFs have been constructed using an octatopic linker with symmetrical shapes.


Rim C.T.,KAIST
IEEE Transactions on Power Electronics | Year: 2011

A general phasor transformation theory for analyzing all linear ac converters such as inverters, rectifiers, cycloconverters, and resonant converters is suggested by unifying the circuit D-Q transformation for polyphase ac converters and the phasor transformation for single-phase ac converters. The system order of polyphase ac converters is degenerated to that of single-phase converters, and the switches in all ac converters, regardless of the numbers of switches and poles, are replaced with an equivalent transformer with a complex turn-ratio. The analysis of ac converters is drastically simplified by the proposed circuit-oriented approach. © 2011 IEEE.


Song D.H.,KAIST | Lee J.-O.,KAIST
Immunological Reviews | Year: 2012

Toll-like receptors (TLRs) sense structural patterns in microbial molecules and initiate immune defense mechanisms. The structures of many extracellular and intracellular domains of TLRs have been studied in the last 10 years. These structures reveal the extraordinary diversity of TLR-ligand interactions. Some TLRs use internal hydrophobic pockets to bind bacterial ligands and others use solvent-exposed surfaces to bind hydrophilic ligands. The structures suggest a common activation mechanism for TLRs: ligand binding to extracellular domains induces dimerization of the intracellular domains and so activates intracellular signaling pathways. Recently, the structure of the death domain complex of one of the signaling adapters, myeloid differentiation factor 88 (MyD88), has been determined. This structure shows how aggregation of signaling adapters recruits downstream kinases. However, we are still far from a complete understanding of TLR activation. We need to study the structures of TLR7-10 in complex with their ligands. We also need to determine the structures of TLR-adapter aggregates to understand activation mechanisms and the specificity of the signaling pathways. Ultimately, we will have to study the structures of the complete TLR signaling complexes containing full-length receptors, ligands, signaling, and bridging adapters, and some of the downstream kinases to understand how TLRs sense microbial infections and activate immune responses against them. © 2012 John Wiley & Sons A/S.


The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency.


In one aspect, the invention provides a catalyst for converting diesel type liquid hydrocarbons to methane rich gas. The catalyst includes a nickel component, a cerium oxide component, and gadolinium oxide component. The catalysts provide high conversion, selectivity, and stability compare to the state of the art commercial catalysts. The catalyst compositions can improve the overall fuel cell efficiency for both mobile and stationary fuel cell applications.


The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency.


The present invention relates to a novel zeolite or zeolite-like material synthesized using a zeolite synthesis composition comprising a specifically designed organic surfactant, wherein the zeolite or zeolite-like material comprises a crystalline framework having a thickness corresponding to up to 10 single unit cells along at least one axis, and 2-50 nm mesopores formed by organic assembly of the crystalline framework are regularly or irregularly arranged in the zeolite or zeolite-like material. In addition, the present invention presents a micro-mesoporous molecular sieve material activated or functionalized by dealumination, ion exchange or other post-treatment processes, and a method of using the molecular sieve material as a catalyst. The disclosed novel materials have a significantly increased outer surface area and pore volume due to a combination of micropores and mesopores, and thus show an increased diffusion of molecules therein. Accordingly, these materials will exhibit significantly increased activities compared to conventional zeolite catalysts and ion exchange resins.


Patent
Kaist, Electronics and Telecommunications Research Institute | Date: 2013-05-28

A multiple ROI (region of interest) setting method and apparatus in scalable video coding and an ROI reconstructing method and apparatus are provided. The multiple ROI setting apparatus includes: an ROI setting unit which sets at least one or more ROIs and allocates ROI identification numbers to the each of ROIs; a mapping unit which allocates at least one or more slice group identification numbers to the at least one or more ROI identification numbers; and a message generating unit which generates a message including ROI-associated information, slice-group-associated information, mapping information on mapping of the ROI identification number to the at least one or more slice group identification numbers, and scalability information.


The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency.

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