• Journal of Mechanical Science and Technology
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• v.20 no.6
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• pp.828-839
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• 2006

In this paper, a 2-DOF planar parallel manipulator with two revolute actuators and one passive constraining leg. The kinematic analysis of the mechanism is analytically performed : the inverse and forward kinematics problems are solved in closed forms, the workspace is derived systematically, and the three kinds of singular configurations are round. The optimal design to determine the geometric parameters and the operating limits of the actuated legs is performed considering the kinematic manipulability and workspace size. These results of the paper show the effectiveness of the presented manipulator.

• Proceedings of the KACD Conference
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• 2003.11a
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• pp.578-578
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• 2003

I. Objectives The purpose of this study was to investigate, histologically, healing in the periodontal tissue after mechanical furcation perforations using Mineral Trioxide Aggregate (PRO ROOTMTA). II. Materials and Methods These experiments were carried out on mandibular and maxilla premolars and molars obtained from 12 dogs more than one year old and which had clinically healthy periodontia. A total of 34 perforations were made. These were divided into Control(9), MTA(25) groups respectively. A sterile round bur (1mm in diameter) was used to create a mechanical perforation in the furcal floor.(omitted)

• Journal of English Language & Literature
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• v.64 no.4
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• pp.601-616
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• 2018

This article explores the ways Charles Dickens's roles as novelist and journal editor overlapped and influenced one another in the serial publication of A Tale of Two Cities (1859) and complicates recent historicist readings, which situate the novel in relation to the Indian Mutiny (1857-59), by calling attention to a double imperial logic used to construct British subjectivity not only against forms of Eastern Otherness but, moreover, against forms of Southern Otherness associated with the European South, especially Italy. Analyzing Dickens's historical representation of the French Revolution in relation to its contemporary international political context, this essay examines how the novel's serial publication draws upon political discourse from contemporary articles on the Second Italian War of Independence (1859-61) appearing concurrently in Dickens's journal, All the Year Round. Orientalism circulates simultaneously in the novel as a distant and exotic as well as a provincial and parochial representation of racial and cultural Otherness.

• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.17 no.3
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• pp.21-29
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• 2021

In this study, the current regulation of the water source energy, one of the renewable energy, was analyzed, and the improvement plan for the high efficient data center cooling system was suggested. In the improvement plan, the design and construction guidelines of the water source energy system permit to adopt the cooling and heating system with or without heat pump. In addition, it should also include the system operated in the cooling mode only all year-round. The domestic test standards to consider the water source operating conditions should be developed. Especially, it is highly recommended that the test standards to include the system with forced cooling and free cooling modes related with the enhanced data center cooling system adopting the water source energy.

• Korean Journal of Plant Resources
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• v.11 no.1
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• pp.64-69
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• 1998

This experiment was conducted to investigatd the variation of some apearance chemical components at National Honam Agricultural Experiment Station in Korea. the treatements consisted of five transplating times, form May 5 to July 5 at 15-day interval , and six cultivars ; two early-maturing, two mid-maturing and two latematuring cultivars. The results showed that the variatio of grain appearance such as length-wide ratio was not significantly different in early -maturing cultivars, but mid-and late-maturing cultivars made slightly a round shape of grain in case of early transplanting. Percentage of complete grain was found to be high at transplanting of MAy 20 inearly-maturing cultivars and on June 5 in mid-and late-maturing ones. PERcentage of existed embryo after milling showed high at early transplanting of May 5 for early -maturing cultivars, and at the late transplanting of June 5 in early and late maturing one. The chemical components of rice grain showed high in protein , lipid,ash and amylose content inthe earlier transplanting, and also revealed high in carbohydrates, magnesium and potassium in the later transplanting of all cultivars.

• Progress in Superconductivity and Cryogenics
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• v.24 no.1
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• pp.1-7
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• 2022

So far, large-scale scientific devices such as nuclear fusion tokamaks and high energy circular accelerators were constructed using high-current conductors made of metallic superconducting wires. Recently, as REBCO superconducting wires usable in high magnetic fields have been developed by several companies, researchesto apply high current cable type REBCO conductors to next-generation large superconducting magnets were also started. High critical currents of several kA or more in high magnetic fields have been successfully demonstrated on test samples of REBCO cable conductors by several research groups. In this review article, the main features and properties of the representative high current REBCO conductors such as CORC(Conductor On Round Core), TSTC(Twisted Stacked-Tape Cable) and RACC(Roebel-Assembled Coated Conductor), which are currently being developed at abroad are briefly introduced. Research activities of high-current density REBCO MHOS(Multi HTS layers on One Substrate) conductor at KERI, whose structure is different from other cable type REBCO conductors are also shortly introduced.

• Journal of Korean Medicine Rehabilitation
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• v.32 no.2
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• pp.155-162
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• 2022

The purpose of this clinical case is to evaluate the efficacy of the Korean medical treatment on a ligamentum teres tear of the hip. One patient, admitted to Daejeon Jaseng Hospital of Korean Medicine was diagnosed with a ligamentum teres tear of the hip by hip magnetic resonance imaging. We treated the patient using the Korean medical treatments, including acupunture, pharmacopuncture, herbal medication, and cupping. We measured the numerical rating scale (NRS), passive range of motion (PROM) and the changes of symptoms. After 13 days, NRS decreased from 8 to 1 respectively, PROM of hip joint has recovered, and the symptoms of the patient improved. In conclusion, this study shows that Korean medical treatment might be effective in treating the patient with a ligamentum teres tear of the hip.

• International Journal of Advanced Culture Technology
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• v.10 no.4
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• pp.403-411
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• 2022

Appearance management is evolving as a means of self-expression or as a way of expressing one's individuality. In particular, hairstyle is the most important part of a person's appearance and accounts for 70% of the appearance. Improving people's appearance by changing their hairstyle gives them confidence. Among them, the fringe hair style plays an important role in determining the first impression and reflects the trend. Fringe is shorter and simpler than general hair treatment, but even these small treatments have the effect of changing the impression, so women are trying to transform into a fringe hair style. A previous study was conducted on four lines classified: round, heart, square, and triangular. In this study, we added them to define 5 hairlines and created them by combining each hairline. that have been produced 5 fringe hair styles that suit the shape of the face. It is expected that the results of this study will be used as educational materials for hair line and fringe hair styles in the field, contributing to the beauty industry.

• Korea Trade Review
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• v.47 no.5
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• pp.223-240
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• 2022

Anti-circumvention rules were discussed profoundly during the Uruguay Round and the DDA negotiations, although WTO members failed to reached an agreement to introduce it to the WTO Anti-Dumping Agreement. However, as the cases of circumvention of anti-dumping duties increase, a number of countries have enacted anti-circumvention regulations as part of their anti-dumping laws. This study aims to analyze anti-circumvention rules from the perspective of WTO law. After overviewing the object and purpose of anti-dumping and anti-circumvention regulations, it examines anti-circumvention regulations of the US, the EU, and India. Next, the study explores the possible WTO-inconsistent aspects of those regulations. Then, it discusses whether it would be preferable for countries not equipped with anti-circumvention regulations, such as Korea, to have one. Thereafter, this study proposes Korean government to introduce anti-circumvention rules into its anti-dumping law.

• ETRI Journal
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• v.45 no.6
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• pp.1090-1102
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• 2023

Authenticated multiple key agreement (AMKA) protocols provide participants with multiple session keys after one round of authentication. Many schemes use Diffie-Hellman or authenticated key agreement schemes that rely on hard integer factorizations that are vulnerable to quantum algorithms. Lattice cryptography provides quantum resistance to authenticated key agreement protocols, but the certificate always incurs excessive public key infrastructure management overhead. Thus, a lightweight lattice-based secure system is needed that removes this overhead. To answer this need, we provide a two-party lattice- and identity-based AMKA scheme based on bilateral short integer or computational bilateral inhomogeneous small integer solutions, and we provide a security proof based on the random oracle model. Compared with existing AMKA protocols, our new protocol has higher efficiency and stronger security.