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Improved Angle-of-View Measurement Method for Display Devices
Lee, Eun-Jung,Chong, Jong-Ho,Yang, Sun-A,Lee, Hun-Jung,Shin, Mi-Ok,Kim, Su-Young,Choi, Dong-Wook,Lee, Seung-Bae,Lee, Han-Yong,Berkeley, Brian H. The Korean Infomation Display Society 2010 Journal of information display Vol.11 No.1
With the increasing demand for a better FPD image quality, better evaluation metrics and advanced display quality measurement methods are required to meet these needs. There are many measurement methods for evaluating the viewing angle of various display devices, but these methods, which include luminance drop, color shift, and contrast ratio decrease, are imperfect considering that human perception does not completely correlate to them. In this paper, a new method of measuring the perceptual angle of FPDs is proposed, considering human visual perception, which uses the color space of the color appearance model.
Brian Z. Tamanaha, 이상진(Lee, Sang - Jin) 원광대학교 법학연구소 2010 圓光法學 Vol.26 No.3
This article, an abridged Korean translation of “Understanding Legal Pluralism: Past to Present, Local to Global” by Brian Z. Tamanaha, explains about the conceptual problem plaguing legal pluralism and introduces a probable solution. Based on this conclusion, it devises a framework which categorizes the legal pluralism phenomena and further explores how these categories clash to what results. Legal pluralism has been heralded by scholars of legal anthropology, legal sociology, comparative law and international law as the theory elucidating the daunting multiplicity of legal orders. But despite all this attention, legal pluralism was marked by conceptual confusion from the very beginning. Participants of legal pluralism come from different disciplines, bringing different concepts and orientations to the subject. Also theorists were not able to agree on a single definition of law for social scientific purposes. If law is defined too broadly, it becomes impossible to discern from other social relationships. This article suggests a solution by regarding law as a “folk concept”; in other words law is what people think of as law. This simple approach can be expanded into a framework that divides the phenomena of legal pluralism into the following six categories: Official legalsystems; Customary/Cultural normative systems; Religious/Cultural normative systems; Economic/Capitalist normative systems; Functional normative systems; Community/Cultural normative systems. A single social arena can have one or more of these legal orders; co-existing legal orders tend to clash with each other for supremacy in redundant areas. Most often official legal systems tend to clash with the other five normative systems mentioned above. In such situations, the official legal system copes with the conflict in either of three ways. First, the official legal system might disallow the competing system but take no action to repress it. Second, the official legal system might absorb the competing system. Third, the official legal system might denounce the competing system, and then actively execute that claim. But if the competing system is more prominent in the social arena than the official legal system, the above methods might not operate as expected. Other from the prior systematic approach, the conflict between normative systems can be viewed from the perspective of individuals and groups. Strategic actors resort to the legal system that aligns with their cause and in making this decision they consider the barriers that exist in connection with each system. The forgoing framework brings on the same plane much of what is discussed by scholars interested in legal pluralism. Now with the conceptual problem of legal pluralism resolved, this framework will work as a practical tool in handling the plurality of law in all societies.
Hertzian Crack Suppression and Damage Tolerance of Silicon Nitride Bilayer
Lee, Kee-Sung,Kim, Do-Kyung,Lee, Seung-Kun,Lawn, Brian R. The Korean Ceramic Society 1998 The Korean journal of ceramics Vol.4 No.4
Hertzian crack suppression phenomena and relatively high damage tolerance were investigated in hard/soft silicon nitride ($Si_3N_4$) bilayers. Coarse $\alpha}-Si_3N_4$ powder was wsed for the hard coating layer and fine $\alpha}-Si_3N_4$ powder was used for the soft substrate layer. The two layers were designed with a strong interface. Hertzian indentation was used to investigate contact fracture and damage tolerance property. Hertzian crack suppression has occurred with increasing applied load and decreasing coating thickness. The crack suppression contributed strength improvement, especially in the bilayers with thinner coatings. Ultimately, the combination of hard coating with soft but tough underlayer improved the damage tolerance of brittle $Si_3N_4$ ceramics.
Lee Bong Hee,Kim Hong,Kim Hyun Ju,Lim Yoon Kyu,Byun Kyung Hee,Hutchinson Brian,Kim Chang Jin,Ko Young Hwan,Lee Keun Hwa,Cha Chang Yong,Kook Yoon Hoh,Kim Bum Joon The Microbiological Society of Korea 2005 The journal of microbiology Vol.43 No.2
Epilepsy constitutes a significant public health problem, and even the newest drugs and neurosurgical techniques have proven unable to cure the disease. In order to select a group of isolates which could generate an active compound with neuroprotective or antiepileptic properties, we isolated 517 actinomycete strains from soil samples taken from Jeju Island, in South Korea. We then screened these strains for possible anti-apoptotic effects against serum deprivation-induced hippocampal cell death, using the 3-(4, 5-dimethylthiazol-2-yl)2,5-diphenyl-tetrazolium bromide (MTT) assay as an in vitro test. The excitotoxic glutamate analog, kainic acid (KA), was used to induce seizures in experimental mice in our in vivo tests. As a result of this testing, we located one strain which exhibited profound neuroprotective activity. This strain was identified as a Streptomyces species, and exhibited the rifampinresistant genotype, Asn$(AAC)^$442, according to the results of 16S rRNA and rpoB gene analyses
Characterization of a Phage Library Displaying Random 22mer Peptides
Lee, Seung-Joo,Lee, Jeong-Hwan,Kay, Brian K.,Dreyfuss, Gideon,Park, Yong-Keun,Kim, Jeong-Kook The Microbiological Society of Korea 1997 The journal of microbiology Vol.35 No.4
We have characterized a phage library displaying random 22mer peptides which were produced as N-terminal fusions to the pIII coat protein of M13 filamentous phages. Among the sixty phages randomly picked from the library, 25 phages had the 22mer peptide inserts. The DNA sequence analysis of the 25 inserts showed the following results: first, each nucleotide was represented almost equally at each codon position except that there were some biases toward G bases at the first position of the codons. Secondly, the expected 47 sense codons were represented. The deduced amino acid sequences of the 25 inserts were analyzed to examine its diversity. Glycine and glutamate were the two most overrepresented residues above the expected value, whereas cysteine and threonine residues were underrepresented. The range of dicersity in dipeptide sequences showed that the amino acid residues were randomly distributed along the peptide insert. Acidic, basic, polar, and nonpolar amino acid residues were represented to the extent expected at most positions of the peptide inserts. The predicted isoelectric points and hydropathy indices of the 25 peptides showed that a variety of the peptide were represented in the library. These results indicate that this phage display library could be useful in fiuding ligands for a broad spectrum of receptors by affinity screening.