Dihydrojasmone(2-pentyl-3-methyl-2 cyclopentene-1-one)의 합성

權純子,金東秀 慶熙大學校 1982 論文集 Vol.13 No.-

The conversion of nitro group into carbonyl group through basic silica gel is one of the most important and effective methods in synthesizing 1,4-diketone, which is an intermediate to produce dihydrojasmone. In obtaining dihydrojasmone through aldolic condensation of 1,4-diketone, basic silica gel acted as a base catalyst in the activation of hydrogen in α-carbon of carbonyl group. In this study, it turned out that basic silica gel containing 6 mmoles of Na per 9 silica gel produced maximum condensation of 1,4-diketone and optimum reaction time required was 24hrs at 80℃ On the basis of these findings, dihydrojasmone was directly obtained from 1-nitroheptane and methyl vinyl ketone without isolation of 2,5-undecandione through basic silica gel. Relatively high yield of 38.2% was achieved, which was higher than those reported.

未熟兒의 出生頻度, 成長 및 發育에 對한 統計的觀察

權順子 대한소아과학회 1963 小兒科 Vol.6 No.1

젖산탈수소효소에 의한 탈수소 반응에 관한 연구

권순자,고영옥 慶熙大學校 1990 論文集 Vol.19 No.-

The kinetics and inhibiton of LDH-catalyzed dehydrogenation of lactic acid were studied to evalute Michaelis constant, Km, maximal velocity, V_max, and inhibition constant, Ki by means of spectrophotofluorometer. The assay condition of reaction mixture was as follows : Lineweaver-Burke plot and found to be 3.4×10^4M and 5.75×10^7M/sec respectively. Reaction medium ◁표삽입▷(원문을 참조하세요) The Dixon and Lineweaver-Burke plot were done to study the effect on LDH of oxalic acid as an inhibitor, whose inhibition constant was found to be 1.26×10^-4M.

Proton Magnetic Resonance Studies of Dipeptides

권순자,이충희,Kwon Soon Ja,Chunghi Rhee Korean Chemical Society 1977 대한화학회지 Vol.21 No.3

Glycine이 포함된 dipeptide인 glycyl-L-valine, L-valyl-glycine, glycyl-DL-alanine, glycyl-DL-serine 및 glycyl-L-aspartic acid의 중수용액속에서의 양성자 자기공명스펙트럼이 실온에서는 pH의 함수로 연구되었다. 이들 스펙트럼의 분석으로부터 $C_{\alpha}H,\;C_{\beta}H\;및\;C_rH$양성자의 chemical shift는 pH에 따라 일단계의 적정곡선으로 변하고 있으며 spin-spin coupling constant는 거의 변하지 않고 있음을 알 수 있다. Dipeptide 용액속에 있는 구성 아미노산의 $C_{\alpha}H\;C_{\beta}H\;및\;C_rH$양성자의 chemical shift가 각각 두개의 다른 값들로 나타나는 것은 이들 용액속에 두개의 자기적으로 서로 다른 site들이 들어있음을 말해준다. 이 연구에서는 다섯개 dipeptide의 구조를 양성자 자기공명스펙트럼에 의해 확인하였으며 결과는 앞으로 oligopeptide에서의 구조 변화, conformation, 구성 아미노산의 순서 결정등을 양성자 자기공명스펙트럼의 분석에 의해 알아낼 수 있음을 암시하고 있다. Proton magnetic resonance spectra of five glycine-containing dipeptides glycyl-L-valine, L-valyl-glycine, glycyl-DL-alanine, glycyl-DL-serine and glycyl-L-aspartic acid in $D_2O$ were investigated as a function of pH at room temperature. From the analysis of the spectra, it was found that the chemical shift of the $C_{\alpha}H,\;C_{\beta}H\;and\;C_rH$protons varies with pH as a one-step titration curve, and that the spin-spin coupling constant remains almost unchanged. Two distinct values of the chemical shift for $C_{\alpha}H,\;C_{\beta}H\;or\;C_rH$protons of constituent amino acids in dipeptide solutions indicate the existence of two magnetically non-equivalent sites in solution. From this study, the structures of the five dipeptides have been confirmed by proton magnetic resonance spectra and it has been suggested that the structural change, conformation and sequence determination can be explored for oligopeptides by an analysis of proton magnetic resonance spectra.

일본 동북지방 역사 음식문화 기행

권순자,장미라 한국식품조리과학회 2010 한국식품조리과학회지 Vol.26 No.4

현대중국어 ‘X勁兒’구문 연구

권순자 중국어문학연구회 2017 중국어문학논집 Vol.0 No.107

The purpose of this study is to examine the “X勁兒” structure as a syntax in the modern Chinese language and to confirm the existence of a sentence structure, then look into the internal pattern of the “X勁兒” structure and to contemplate on the extended inheritance of the “X勁兒” structure and its mechanism. The major details of this study are as follows. First, the “X勁兒” structure was seen as a partially productive marked structure. The sentence structure takes on a partially open form due to the substitutability of “X” and, at the same time, because it shows limitations when choosing “X” – it is only receptive to some adjectives and nouns, while not receptive to all types of vocabulary. The “X勁兒” structure can further be categorized into the “A勁兒” structure and the “N勁兒’”. Second, the meaning of the “A勁兒” structure expresses a person’s mental state, emotion, and disposition, or the state of an environment. Most of the adjectives (98.7%) that are used in the “A勁兒” structure are descriptive adjectives. In the case of adjectives used in the “A勁兒” structure, 77.8 percent are two syllable adjectives, while 20.9 percent are one syllable adjectives. Third, the “N勁兒” structure is a new form found in modern Chinese, that is not yet commonly used. Nouns that come before a “N勁兒” structure are common nouns and proper nouns. The “N勁兒” structure expresses the disposition of a person or “N”. In general, “N” has a noticeable attribute, or is a specific person, place or a type of person whose attributes are easily vitalized by the listener. Fourth, nouns cannot express an attribute or a state. However, when it is inserted into an “A勁兒” structure, it loses its original nature to designate due to the pressure of the sentence structure, and is used as an adjective that has a definition expressing degree by slightly adjusting the meaning, ultimately able to express an attribute or a state. As such usage and interpretation became fixed, the “N勁兒” structure also established itself as an independent sentence structure. This research paper confirmed that the noun used in the “N勁兒” structure was pressured by the “A勁兒” structure based on two mechanisms, namely “metonymy” and the “principle of economic feasibility”. Furthermore, these two mechanisms are not completely separated, but rather connected to one another.

Phenylvinylsulfones의 Benzenethiol 첨가물의 합성에 관한 연구

권순자,최준철 경희대학교 자연과학종합연구원 1997 자연과학논문집 Vol.3 No.-

The kinetic study of the hydrolysis of phenylvinylsulfone(PVS) shows that carbon-carbon double bond, if there is an electron-withdrawing group next to it, is apt to have a nucleophilic addition reaction named Michael reaction due to inductive and resonance effect. To apply this mechanism to the addition reaction between PVS derivatives and benzenethiol the reaction was performed in the presence of alkaline catalysts, and the following nucleophilic adducts were obtained and identified : phenyl-2-phenylthioethylsulfone, p-methylphenyl-2-phenyl-thioethylsulfone, p-nitrophenyl-2-phenylth1oethylsulfone, and p-chlorophenyl-2-phenylthioethyl sulfone.

대전지역 전업 전업주부들의 학력수준에 따른 식품구매 실태조사

권순자,이선영,김경은 한국식생활문화학회 2001 韓國食生活文化學會誌 Vol.16 No.2

A survey was conducted to assess the food-purchase behavior of 197 Taejon full time housewives 30 to 49 years of age. Food purchase was assessed using a questionnaire and the resulting data were analyzed using SPSS programs. Demographic data revealed that most of the households have three to five family members and that the Engel Indices of the participating households were mostly between 10 and 30%. Noticeable results of the food purchase assessment are as follows. In the grain and grain products items, the low-education group purchased more rice and barley than the high-education group, whereas the high-education group purchased more glutinous rice, brown rice, bread, macaronis and spaghetti than the low-education group. In the vegetable items, the low-education group purchased more Chinese cabbage and radish than the high-education group, while the high-education group purchased more head lettuce, broccoli and sweet pepper than the low-education group. In the meat items, the beef purchase was higher in the high-education than in the low-education group, while the pork purchase was higher in the low-education than in the high-education group. In the processed meat items, ham was the most favorite purchase item regardless of the education level. In the fish and shellfish items, Pacific cod and Alaska pollack were purchased more in the low-education than in the high-education group, and salmon and dried icefish strip were purchased more in the high-education than in the low-education group. No items in fruit group showed significant differences in the purchase amount between the low-education and the high-education group although the latter purchased more imported-fruits such as melons, kiwis, grapefruits, and oranges. Dairy products such as milk, cheese and butter were purchased more in the high-education than in the low-education group. It was also found that both the number of food items and the consumption of foods coming from animals were higher in the high-education than in the low-education group.

경기지역 일부 초등학생의 비만도에 따른 급식 만족도 및 급식을 남기는 행동에 관한 연구

권순자 대한지역사회영양학회 2001 대한지역사회영양학회지 Vol.6 No.2

The purpose of this study was to investigate the effects of obesity on the satisfaction with school lunches and school lunch leftovers of elementary school children in the Kyeonggi area. The study was carried out on 235 children(male : 111, female :124) in December of 2000. The results are summarized as follows. A Rohrer index was used to define obesity. The proportions of severe underweight, underweight, normal, overweight, and obese were 0.9%, 16.6%, 57.9%,17.0%, and 7.7% respectively. For the data analysis, the subjects were divided into 3 groups : an underweight group(Rohrer index 109 including severe underweight), a normal group(Rohrer index 110-140), and an obese group(Rohrer index 141 including overweight). With regard to the satisfaction with school lunches, the proportions of children who were satisfied, neutral, and unsatisfied were 27.2%, 59.6% and 13.2% respectively. The proportion of the satisfaction with school lunches was significantly higher in the male group than in the female group(p〈0.05), and the proportion of the dissatisfaction with school lunches was significantly increased with obesity index(p〈0.05). The largest proportion of children who were satisfied with school lunches answered they felt hungry(56.3%) and the food tasted good(42.2%). Children sho were not satisfied with school lunches answered that the food was not tasty(93.5%), they did not have ant appetite(9.7%), and others. The children not finishing school lunches(leftovers) occasionally or always were 47.7% of the subjects. The behavior of leaving lunch foods was not significantly related to the gender or the frequency of eating snacks, wile it was positively related with dissatisfaction with school lunches(p〈0.01), obesity index(p〈0.05), and the decreased frequency of eating meals per day(p〈0.01). The reasons of school lunch leftovers were food dislikes(67.9%), excess of quantity(39.3%), tastelessness(31.3%), poor appetite(13.4%), and other. The children eating meals twice, 3 times, and 4 times per day were 18.7%, 74.9%, and 6.4% of the subjects respectively. The proportions of the obese and the satisfaction with school lunches were not changed significantly according to the frequency of eating meals, while the proportion of children leaving school lunches was significantly higher in the group of eating meals twice per day than in the other groups(p〈0.01). The frequency of eating snacks was not related to the obesity index, the proportion of school lunch leftovers, or the frequency of eating meals, while the proportion of satisfaction with school lunches was significantly higher in the group of eating snacks 1-2 times per day than in the other groups(p〈0.01). In conclusion, it is necessary to have children enjoy school lunches with efforts to improve the food´s taste in the school food services and to reexamine the serving sizes for the children, in addition to the nutrition education for the children to eat a variety of foods.

新生兒의 소생법

권순자 대한소아과학회 1971 小兒科 Vol.14 No.12