• Korean Journal of Mathematics
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• v.20 no.4
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• pp.533-540
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• 2012

We consider the multiplicity of the solutions for the elliptic boundary value problem with $C^1$ nonlinear term decaying at the origin. We get a theorem which shows the existence of the nontrivial solution for the elliptic problem with $C^1$ nonlinear term decaying at the origin. We obtain this result by reducing the elliptic problem with the $C^1$ nonlinear term to the el-liptic problem with bounded nonlinear term and then approaching the variational method and using the mountain pass geometry for the reduced the elliptic problem with bounded nonlinear term.

• International Commerce and Information Review
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• v.10 no.3
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• pp.197-219
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• 2008

The aim of this paper is to review KORUS FTA Rules of Origin. Although there are some differences in terms of structure and contents, KORUS FTA Rules of Origin is not much different from the other FTA's texts that Korea has already concluded. Textile and Apparel chapter is also separately specified. For textile and apparel goods, Korea and the US agreed to adopt 'yam-forward rule', allowing exceptions for certain goods. Both sides also agreed to introduce procedures for permitting to use non-Party's materials when fibers ryarns rfabrics are not available in commercial quantities. Overall evaluation on KORUS FTA is considered to be positive. Economically, KORUS FTA is expected to provide good opportunities for Korean companies to access the US market. Politically, Korea and the US can take advantage of KORUS FTA to reinforce the relationship between the two countries.

• Microbiology and Biotechnology Letters
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• v.22 no.1
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• pp.18-22
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• 1994

Enterococcus faecalis KBL703 has three plasmids(p703/9, p703/5 and p703/4). Within p703/5, the specific DNA region that would confer replication function(replication origin) was searched by transformation experiments. In order to use as the recipient of transformation, two plasmid-cured strainsd were made from this strain. Four recombinant DNA constructs, each containing fragment of p703/5 and CAT(chloramphenicol acetyl transferase) gene were also made. And they were used to transform the plasmid-cured strains. Only one DNA construct containing 3.6 kb SalI fragment was stably maintained as plasmid in these strains. Additional experiment using another Enterococcus faecalis strain(ATCC29212) as a recipient was successfully done and it was confirmed that this newly constructed recombinant plasmid plasimid contained the replication origin from p703/5 plamid.

• Nuclear Engineering and Technology
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• v.48 no.2
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• pp.293-298
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• 2016

Thirty-eight spherules from the Antarctic ice sheet were analyzed using neutron activation analysis under two different conditions to investigate their origin. In almost all of these spherules, the contents of iron, cobalt, and manganese were determined to be 31% to 88%, 17 mg/kg to 810 mg/kg, and 0.017% to 7%, respectively. A detectable iridium content of 0.84 mg/kg was found in only one spherule, which was judged to be extraterrestrial in origin. A comparison of elemental compositions of the Antarctic spherules analyzed in this study with those of deep-sea sediment spherules and those of terrestrial materials revealed that most of the Antarctic spherules except for the sample in which iridium was detected could not be identified as extraterrestrial in origin.

• Archives of Craniofacial Surgery
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• v.20 no.1
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• pp.51-54
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• 2019

Orocutaneous fistulas, or cutaneous sinuses of odontogenic origin, are uncommon but often misdiagnosed as skin lesions unrelated to dental origin by physicians. Accurate diagnosis and use of correct investigative modalities are important because orocutaneous fistulas are easily confused for skin or bone tumors, osteomyelitis, infected cysts, salivary gland fistulas, and other pathologies. The aim of this study is to present our experience with a patient with orocutaneous fistulas of odontogenic origin presenting as recurrent pyogenic granuloma of the cheek, and to discuss their successful treatment.

• Journal for History of Mathematics
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• v.32 no.1
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• pp.27-44
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• 2019

This study analyses and discusses on the characteristic and the origin of the exhaustion method caused by the controversy over whether that method succeeded to the Antiphone's complete exhaustion idea and whether that method is similar to the method of limits. First, this study analyses 'principle of exhaustion method' which play an important role in that method in order to grasp the local characteristic of it. And this study speculates the origin of the exhaustion method by considering the time and situation of appearance and looking through the local characteristic of it. Also, this study takes a view of the overall characteristic of the exhaustion method by inquiring into the process of actual application of 'principle of exhaustion method' in a proof. As these results, this study reveals that the exhaustion method uprose not as a succession of Antiphone's idea but as a reaction to its idea, and that the exhaustion method has the recognized character of 'finitude' as distinct from the method of limits.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.7A
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• pp.717-723
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• 2007

There are many weaknesses in sensor networks due to hardware limitation of sensor nodes besides the vulnerabilities of a wireless channel. In order to provide sensor networks with security, we should find out the approaches different from ones in existing wireless networks; the security mechanism in sensor network should be light-weighted and not degrade network performance. Sowe proposed a novel data origin authentication satisfying both of being light-weighted and maintaining network performance by using Unique Random Sequence Code. This scheme uses a challenge-response authentication consisting of a query code and a response code. In this paper, we show how to make a Unique Random Sequence Code and how to use it for data origin authentication.

• Journal of the Korean Society of Food Culture
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• v.12 no.5
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• pp.477-493
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• 1997

The consumers' purchase experiences of some imported agricultural products (rice, sesame, garlic, onion, jujube, red pepper, oak mushroom, apple, dried persimmon) and their consciousness for the labelling of the country of origin for agricultural products in Youngnam region were examined in this study. The sample consisted of 438 women who lived in Taegu, Pusan and other cities of Kyungpook and Kyungnam, and the self-administered questionnaire for the survey was used. The main reasons to purchase the imported agricultural products were the wide distribution and low price of them. Most of the consumers were concerned about safety of the imported agricultural products but only a few people experienced unsatisfaction of the products. The price, quality, package, container, label, and safety of the examined products were evaluated worse than those of the domestic products. Generally, although they suffered unsatisfaction, the consumers did not complain because they wanted to avoid troublesome work, which means the consumers did not assert their rights. Some people did not know the labelling system for the country of origin and the place to charge the market violating it. Therefore, it will be necessary for the consumers to receive education about the labelling system for the country of origin and the compensation criteria for consumers' grievances and damages. The current labelling method for the country of origin generally met the consumers' preference but the consumers wanted to improve the position and color of the label. Most consumers could not differentiate the imported products from the domestic products. The results obtained from the survey suggest consumer education for the labelling system for the country of origin and the compensation criteria should be activated through various ways such as mass media and consumer organizations.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.5A
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• pp.402-408
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• 2007

There are many weaknesses in sensor networks due to hardware limitation of sensor nodes besides the vulnerabilities of a wireless channel. In order to provide sensor networks with security, we should find out the approaches different from ones in existing wireless networks; the security mechanism in sensor network should be light-weighted and not degrade network performance. Sowe proposed a novel data origin authentication satisfying both of being light-weighted and maintaining network performance by using Unique Random Sequence Code. This scheme uses a challenge-response authentication consisting of a query code and a response code. In this paper, we show how to make a Unique Random Sequence Code and how to use it for data origin authentication.

• Journal of The Korean Astronomical Society
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• v.43 no.3
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• pp.75-93
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• 2010

We present the characteristics of the Seoul National University 4k Camera (SNUCAM) and report its performance on the 1.5m telescope at the Maidanak observatory in Uzbekistan. SNUCAM is a CCD camera with a pixel scale of 0.266" in $4096{\times}4096$ format, covering $18.1'{\times}18.1'$ field of view on the 1.5m. The camera is currently equipped with Bessell UBVRI, $H{\alpha}$, SDSS ugriz, and Y-band filters, allowing us to carry out a variety of scientific programs ranging from exoplanet studies to survey of quasars at high redshift. We examine properties of SNUCAM such as the bias level and its temporal variation, the dark current, the readout noise, the gain, the linearity, the fringe patterns, the amplifier bias, and the bad pixels. From our observations, we also constructed the master fringe frames in I-, z-, and Y-band. We outline some of the current scientific programs being carried out with SNUCAM, and demonstrate that SNUCAM on the 1.5m can deliver excellent images that reach to the $5-{\sigma}$ detection limits of R~25.5 mag and z~22.7 mag in 1 hour total integration.