제약을 갖는 최적화문제에 대한 파라메트릭 접근법과 구조문제의 최적화에 대한 응용

양용준,김원석 한국경영과학회 1990 韓國經營科學會誌 Vol.15 No.1

This paper describes two algorithms to Nonlinear programming problems with equality constraints and with equality and inequality constraints. The first method treats nonlinear programming problems with equality constraints. Utilizing the nonlinear parametric programming technique, the method solves the problem by imbedding it into a suitable one-parameter family of problems. The second method is to solve a nonlinear programming problem with equality and inequality constraints, by minimizing a square sum of nonlinear functions which is derived from the Kuhn-Tucker condition. Finally, computational results of two algorithms of solving a structural optimization problem are give.

피브리노겐의 수치 및 중요한 아미노산 변형 돌연변이가 뇌중풍에 미치는 영향

양용준,신용철,고성규,Yang, Yong-Jun,Shin, Yong-Cheol,Ko, Seong-Gyu 대한예방한의학회 2010 대한예방한의학회지 Vol.14 No.1

Backgrounds : Stroke is characterized by loss of brain functions due to a disturbance in the blood vessels supplying blood to the brain, and classified into hemorrhage and ischemia. Stroke is known to be affected by genetic factors and other diseases such as hypertension and cardiovascular diseases. However, the distinctive association between stroke and genetic variations has not discovered yet. Objectives : This study investigated the effects of fibrinogen level and genetic variations in FGA (Fibrinogen alpha chain) gene on stroke in Korean stroke patients and controls. Methods : DNA samples from 674 stroke patients diagnosed by Oriental medical hospitals and 267 controls were used in this study. Two common single nucleotide polymorphism(SNP) with high minor allele frequency(MAF), rs2070011G/A of promoter region and nonsynonymous rs6050A/G of exon 5 in FGA gene, were targeted for Taqman genotyping. Because the TOAST classification is important to the factors and symptoms of stroke, ischemic patients were further classified into five subtypes using diagnosis and clinical data. One-way ANOVA and chi-square test were used for clinical data and genetic association, respectively. Haploview v4.1 program was used for linkage disequilibrium(LD), haplotype and haplotype block analysis. Results : The levels of red blood cells and fibrinogen from clinical data were shown to be significant factors for the sub-groups of TOAST classification. No significant associations of stroke, hemorrhage, ischemic and subtypes of TOAST with rs2070011 and rs6050 of FGA gene were found(P > 0.05). However, rs2070011 in promoter region and nonsynonymous rs6050 in exon 5 which produce the amino acid change from threonine to alanine showed a haplotype block and three haplotypes of A-G, G-A, A-A, suggesting that rs2070011 and rs6050 might be co-segregated in generic recombination. Although A-A haplotype of stroke patients showed 64-69% low frequency compared to controls, there was no significant association between stroke and haplotype(P > 0.05). Conclusion : This study showed that there was no significant association between stroke and two SNP of rs2070011G/A and nonsynonymous rs6050A/G in FGA gene. However, these two SNP compose a haplotype block and three haplotypes of A-G, G-A, A-A. This finding suggests that rs2070011 and rs6050 are so close as to be positioned as linkage disequilibrium. Nevertheless, no significant association between haplotypes and stroke was found.

영어와 한국어의 전제 취소가능성에 대한 연구

양용준 현대영미어문학회 2017 현대영미어문학 Vol.35 No.4

The purpose of this paper is to survey and analyze presupposition and its defeasibility in English and Korean. Presupposition is created and cancelled in the process of communicating with each other in social life. One of the unique features of presupposition is that it can easily be cancelled in a particular context. In English, defeasibility of presupposition is divided into five categories. These are the defeasibility of presupposition by use of a factual verb, tense clause, faith context, interjection context and within a sentence. In Korean, defeasibility of presupposition is determined by the politeness, which is different from English. Defeasibility of presupposition should be further studied in English and Korean. The usage of presupposition in English and Korean seems similar, but it is not the same because each native speaker has different ways of thinking and different environments. It is necessary to study the specific and corpusal aspects of presupposition expressions and defeasibility of presupposition directly, as they are used in everyday life. .

고농도의 이산화탄소가 저장중인 딸기의 품질에 미치는 영향

양용준 상명대학교 산업과학연구소 1999 産業科學硏究 Vol.- No.7

Presupposition Triggers of English and Korean

양용준 21세기영어영문학회 2019 21세기영어영문학회 학술대회 Vol.2019 No.03

저온저장 온도 및 저장기간이 키위 "골드"의 품질 유지에 미치는 효과

양용준,임병선,Yang, Yong-Joon,Lim, Byung-Seon The Korea Academia-Industrial cooperation Society 2017 한국산학기술학회논문지 Vol.18 No.1

The effects of temperature and length of cold storage on the quality maintenance of fresh "Gold" kiwifruit were investigated. Physio-chemical properties were analyzed in kiwifruit held at $2^{\circ}C$ and $6^{\circ}C$ temperatures compared to fruit at room temperature ($20{\sim}28^{\circ}C$) during 8 weeks of storage. Low temperatures ($2^{\circ}C$ and $6^{\circ}C$) significantly delayed softening and soluble solids content (SSC) accumulation compared to higher temperature ($20{\sim}28^{\circ}C$). Physico-chemical properties of fruits, including weight losses, firmness, SSC, titratable acidity (TA), SSC/TA ratio, and flesh color properties were monitored during storage. Fast firmness loss was detected in fruit stored at higher temperatures compared to low temperature ($2^{\circ}C$). Similar results were observed for acidity according to storage temperature and length of cold storage, whereas SSC increased to the limited values (%Brix) during storage. The soluble solids content (SSC) increased markedly during the first 60 days of storage and remained almost constant thereafter for all treatments. SSC accumulation rates decreased from 5 weeks after storage probably due to differences between initial and ripe kiwifruits, and SSC decreased with each passing week due to natural starch conversion over time. The SSC/acid ratio increased from 18 to 27 until 5 weeks after storage and then slowly declined in all kiwifruit stored at different low temperatures. Sensory evaluation results showed no differences in kiwifruit flesh color stored at two storage temperatures of $2^{\circ}C$ and $6^{\circ}C$. 본 연구는 키위 과일의 수출 시 최적 수송온도를 구명하기 위하여 같은 수송조건을 설정한 시물레이션실험을 수행하였다. 수송온도로 $2^{\circ}C$와 $6^{\circ}C$ 조건을 설정하고 이와 비교한 실험군으로 변온조건으로 상온($20{\sim}28^{\circ}C$)을 두어 과실의 여러 물리화학적 변화를 조사하였다. 과실의 경도는 $2^{\circ}C$에서 가장 높게 유지되었고 이와 유기산 함량의 유지에서도 같은 결과였다. 가용성 당함량은 저온 저장 5주까지 완만히 증가하다가 그 이후 감소하기 시작하였는데 저온 처리간 차이는 크지 않았다. 이에 비하여 상온에서의 가용성 당함량은 저장 3주후에 과실이 부패하여 측정이 불가능하였다. 키위 과실의 당산비는 저온저장 5주 까지 18에서 27까지 크게 증가하여 과실의 품질이 크게 향상되다가 그 이후 감소하기 시작하였다. 이 결과로 키위는 전형적인 수확 후 호흡급등형 과실의 패턴을 보였고 저온처리 간에는 차이가 크지 않았다. 관능검사를 통하여 저장중인 키위 과육의 색을 조사한 결과, 저온처리($2^{\circ}C$와 $6^{\circ}C$)에서 차이가 크지 않았다.

Deixis에 대한 고찰 및 분석

양용준 한국언어연구학회 2003 언어학연구 Vol.8 No.1

영어와 한국어의 동의 관계 이해 및 활용

양용준 한국중앙영어영문학회 2020 영어영문학연구 Vol.62 No.2

The purpose of this paper is to find out how students understand and use synonymous relations. To this end, a survey was conducted and the results are as follows. According to the survey, students were learning in the order of understanding and acquiring in homonymy, synonymy, polysemy, antonymy, hypernym & hyponym. On the other hand, it was found that the degree of using of students who are familiar with synonymous relations was as follows. The reason students use the vocabulary of synonymous relations is that, first, it is to communicate well with each other. Second, it was to learn through synonyms. In fact, in learning English vocabulary, it is natural to be effective if you learn from words that are synonymous. Third is to express synonyms with a vocabulary that is not used by others, with the idea that they should look something. Fourth, it will be said that the help of learning and understanding history through synonyms is the result of proving that it is a learning method suitable for the convergence era. In the future, it will be more complicated in understanding and using the synonymous relations. However, it is clear that a situation in which more Korean, foreign languages, Chinese character, and English will be mixed will come sooner. Because the world is called a global village and is within the daily life zone, this phenomenon will accelerate.

포장방법이 딸기의 수확후 품질에 미치는 효과

양용준 상명대학교 산업과학연구소 1996 産業科學硏究 Vol.- No.4

CA 저장이 잎상추, 쑥갓 및 오이의 외과품질과 비타민 C 의 함량에 미치는 영향

양용준 상명대학교 산업과학연구소 1996 産業科學硏究 Vol.- No.4