• Applied Biological Chemistry
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• 제7권
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• pp.79-84
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• 1966

한국산(韓國慶) 대두(大豆)의 품종간(品種間)의 차이(差異)를 비교(比較)하고 나아가서 품종(品種)의 개량(改良)이나 가공이용면(加工利用面)에 유용(有用)한 재료(?料)를 얻기 위해 우리나라 각지방(各地方)의 장려품종을 비롯하여 전국적(全國的)으로 널리 재배(栽培)되고 있는 대두(大豆) 49품종(品種)을 대상(對象)으로 하여 일반화학조성분(一般化學組成分)의 분석(分析)과 가용성(可溶性) 및 불용성(不溶性) 단백질(蛋白質)의 정량(定量)을 실시(實施)하여 다응과 같은 결과(結果)를 얻었다. 1. 일반화학조성분(一般化學組成分) 수분(水分); 평균(平均) 11. 95% 최고(最高) 12.57% 최저(最低) 10.93% 단백질(蛋白質); 평균(平均) 39.80% 최고(最高) 47.00% 최저(最低) 33.79% 지방(脂肪); 평균(平均) 19.20% 최고(最高) 24.79% 최저(最低) 16.32% 철유(鐵維), 평균(平均) 3.98% 최고(最高) 5.57% 최저(最低) 3.03% 회분(灰分); 평균(平均) 4.60% 최고(最高) 5.23% 최저(最低) 3.95% 가용성(可溶性) 무질소물(無窒素物); 평균(平均) 20.57% 최고(最高), 26.81% 최저(最低) 16.58%. 2. 가용성(可溶性) 단백질(蛋白質) 및 불용성(不溶性) 단백질(蛋白質) 가용성(可溶性) 단백질(蛋白質); 평균(平均) 33.26% 최고(最高) 37.31% 최저(最低) 27.73% 불용성(不溶性) 단백질(蛋白質); 평균(平均) 단백질(蛋白質) 1.94%, 최고(最高) 4.61% 최저(最低) 0.85% 비단백태질소(非蛋白態窒素); 평균(平均) 4.49% 최고(最高) 6.83% 최저(最低) 2.50% 3. 품종간(品種間)의 화학적(化學的) 조성분(組成分)이 대체적(大體的)으로 큰 차이(差異)를 나타내고 있어서 가공이용면(加工利用面)으로서 그 대두(大豆)가 단백질원(蛋白質源)인가 또는 지방원(指肪源)인가에 따라 적절(適切)한 품종(品種) 선택(選擇)을 하는 것이 유리함을 나타낸다. 4. 제한(制限)된 품종 수에 대하여 반당(反當) 단백질(蛋白質) 수량(收量) 및 반당(反當) 지방(脂肪) 수량(收量)을 산출(算出) 비교(比較)하였다. 끝으로 본(本) 연구는 1965 年度 서울대학교 대학원(大學院) 연구비(硏究費)로 수행(遂行)한 것이며 본 연구를 시종 지도편달(指導鞭撻) 해 주신 서울대학교 농과대학 농화학과 주임교수 이춘영박사(李春寧博士)에게 감사(感謝)를 드리며 또한 본 연구의 시료를 제공하여 주신 서울대학교 농과대학 농학과 이고웅박사(李股雄博士)에 게 사의(謝意)를 표하는 동시에 본 연구의 분석에 협력하여 준 서울대학교 대학원 농화학과 김수영군(金洙榮君)에게 사의(謝意)를 표하는 바이다.

• 고려인삼학회:학술대회논문집
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• 고려인삼학회 2002년도 학술대회지
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• pp.491-501
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• 2002

A cross-examination between KT&G Central Research Institute and Guangzhou Institute for Drug Control was carried out in order to select optimum conditions for extraction, separation and determination of ginsenosides in red ginseng and to propose a better method for the quantitative analysis of ginsenosides. The optimum extraction conditions of ginsenosides from red ginseng were as follows: the extraction solvent, $70\%$ methanol; the extraction temperature, $100^{\circ}C;$ the extraction time, 1 hour for once; and the repetition of extraction, twice. The optimum separation conditions of ginsenosides on the SepPak $C_{18}$ cartridge were as follows: the loaded amount, 0.4 g of methanol extract; the washing solvents, distilled water of 25 ml at first and then $30\%$ methanol of 25 ml; the elution solvent, $90\%$ methanol of 5 ml. The optimum HPLC conditions for the determination of ginsenosides were as follows: column, Lichrosorb $NH_2(25{\times}0.4cm,$ 5${\mu}m$, Merck Co.); mobile phase, a mixture of acetonitrile/water/isopropanol (80/5/15) and acetonitrile/water/isopropanol (80/20/15) with gradient system; and the detector, ELSD. On the basis of the optimum conditions a method for the quantitative analysis of ginsenosides were proposed and another cross-examination was carried out for the validation of the selected analytical method conditions. The coefficient of variances (CVs) on the contents of ginsenoside-$Rg_{1}$, -Re and $-Rb_1$ were lower than $3\%$ and the recovery rates of ginsenosides were $89.4\~95.7\%,$ which suggests that the above extraction and separation conditions may be reproducible and reasonable. For the selected HPLC/ELSD conditions, the CVs on the detector responses of ginsenoside-Rg, -Re and $-Rb_1$) were also lower than $3\%$, the regression coefficients for the calibration curves of ginsenosides were higher than 0.99 and two adjacent ginsenoside peaks were well separated, which suggests that the above HPLC/ELSD conditions may be good enough for the determination of ginsenosides.

• 수산해양기술연구
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• 제55권1호
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• pp.29-38
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• 2019

In order to investigate the behavioral characteristics of Pacific cod (Gadus macrocephalus) released at the entrance of Jinhae Bay, Korea, the direction and range of movement, swimming speed of the fish were measured with an acoustic telemetry techniques in winter, 2015. Three wild Pacific codes WC1 to WC3 (total length 66.0, 75.0, 76.0 cm; body weight 2.84, 2.79, 3.47 kg, respectively) were tagged with the acoustic transmitter. WC1 tagged with an acoustic transmitter internally by surgical method, WC2 and WC3, externally with the acoustic data logger and a micro data logger for recording audible sound waves including timer release unit. The movement routes of the tagged fish were measured more than five hours using VR100 receiver and a directional hydrophone. The directionality of the fish movement was tested by Rayleigh's z-Test, the statistical analysis, and a statistical program SPSS. Three tagged fishes were individually released on the sea surface around the entrance to the Jinhae Bay on 10 to 24 January 2015. WC1 moved about 13.32 km with average swimming speed of 0.63 m/s for six hours. The average swimming depth and water depth of the seabed on the route of WC1 were 7.2 and 32.9 m, respectively. The movement range of WC2 and WC3 were 7.95 and 11.06 km, approximately, with average swimming speed of 0.44 and 0.58 m/s for 5.1 and 5.3 hours, respectively. The average swimming depth of WC2 and WC3 were 18.7 and 5.0 m, and the water depth on the route, 34.4 and 29.8 m, respectively. Three fishes WC1 to WC3 were shown significant directionality in the movement (p < 0.05). Movement mean angles of WC1 to WC3 were 77.7, 76.3 and $88.1^{\circ}$, respectively. There was no significant correlation between the movement direction of fish (WC1 and WC2) and the tidal currents during the experimental period (p >= 0.05). Consequently, three tagged fishes were commonly moved toward outside of the entrance and headed for eastward of the Korean Peninsula, approximately, after release. It may estimate positively that the tidal current speed may affect to the swimming speed of the Pacific cod during the spring tide than the neap tide.

• 한국노년학
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• 제28권4호
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• pp.887-905
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• 2008

본 연구는 노인교육 참여가 노인이 지각하는 심리적 안녕감에 미치는 영향을 규명하고자 하였다. 심리적 안녕감의 하위개념을 노인이 경험하는 부정적 정서상태인 고독감과 긍정적 정서상태인 삶의 만족도로 구분하여 노인교육 참여가 노인의 고독감 감소와 삶의 만족도 증진에 기여하는지를 검증하였다. 이를 위해 수도권에 거주하는 만 60세 이상 노인 288명(노인교육 참여 146명, 노인교육 비참여 142명)을 대상으로 구조화된 설문지를 사용하여 조사하였고, SPSS 13.0 WIN을 사용하여 분석하였다. 조사도구는 UCLA 고독감 척도, 삶의 만족도 척도(LSIZ) 그리고 일반적 문항으로 구성하였다. 연구결과, 노인교육 참여노인이 비참여노인에 비해 고독감은 낮고 삶의 만족도는 높게 나타났다. 일반적 특성과 노인교육 참여여부를 포함하여 실시한 다중회귀분석 결과 건강상태가 나쁠수록, 교육수준이 낮을수록, 노인교육에 참여하지 않을수록, 주관적 생활수준이 어려울수록 고독감이 높았고, 희귀모형은 전체고독감 변량의 22.1%를 설명해 주고 있는 것으로 나타났다. 반면, 건강하다고 느낄수록, 노인교육에 참여할수록, 종교활동을 할 경우, 주관적 생활수준이 부유할수록 삶의 만족도가 높았고, 희귀모형은 전체 삶의 만족도 변량의 28.1%를 설명해 주는 것으로 나타났다. 연구의 결과로부터 노후생활과 노인교육을 위한 정책, 실천, 그리고 후속연구에 대한 시사점을 제공하였다.

• 디지털융복합연구
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• 제18권12호
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• pp.435-444
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• 2020

본 연구는 임상간호사의 간호근무환경과 조직몰입 간의 관계에서 회복탄력성의 매개효과를 확인하기 위한 서술적 조사연구이다. 연구 대상자는 G도 및 J도의 상급종합병원, 종합병원에 근무하는 간호사 150명을 대상으로 설문조사를 하였다. 수집된 자료는 SPSS/WIN 25.0 프로그램을 이용하여 분석하였다. 연구결과 임상간호사의 조직몰입 정도는 5점 만점에 3.38점, 간호근무환경은 4점 만점에 2.62점, 회복탄력성은 5점 만점에 3.45점이었다. 일반적 특성에 따른 조직몰입 정도는 임상경력, 근무만족도가 높을수록, 연령, 결혼 상태에 따라 통계적으로 유의한 차이가 있었으며, 조직몰입은 간호근무환경(r=.64, p<.001), 회복탄력성(r=.75, p<.001)과 유의미한 상관관계를 보였다. 임상간호사의 간호근무환경과 조직몰입 관계에서 회복탄력성은 부분 매개(Z=6.23, p<.001)하는 것으로 나타났다. 이러한 결과를 바탕으로 간호사의 조직몰입 향상을 위하여 간호근무환경과 회복탄력성을 강화시킬 수 있는 융복합적인 조직몰입 중재프로그램을 개발하기 위한 전략이 필요하다.

• 한국환경생태학회지
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• 제35권3호
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• pp.265-276
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• 2021

신천의 어류 군집 특성과 하천의 건강성을 밝히기 위해 2019년 4월부터 10월까지 조사를 시행하였다. 조사기간 동안 23개 지점에서 채집된 어류는 12과 30종 3,677개체였다. 우점종은 피라미(Zacco platypus, 28.4%), 아우점종은 대륙송사리(Oryzias sinensis, 13.6%), 그 다음으로 참갈겨니(Zacco koreanus, 11.8%), 버들치(Rhynchocypris oxycephalus, 11.7%), 붕어(Carassius auratus, 9.6%), 참붕어(Pseudorasbora parva, 7.9%) 등의 순으로 우세하게 출현하였다. 출현 종 중 한국고유종은 10종(33.3%)이었고, 외래종은 이스라엘잉어(Cyprinus carpio (Islaeli type), 떡붕어(Carassius cuvieri), 배스(Micropterus salmoides), 구피(Poecilia reticulata), 플래티(Xiphophorus maculatus) 5종(16.7%)이었으며, 육봉형 어류는 둑중개(Cottus koreanus)와 밀어(Rhinogobius brunneus) 2종(6.7%), 기후 변화 민감종은 둑중개 1종(3.3%)이 출현하였다. 어류 군집분석 결과, 신천본류와 수동천, 청담천은 우점도는 낮고 다양도는 높았으며, 동두천과 상패천은 우점도는 높고 다양도는 낮았다. 하천건강성은 최상류와 지류인 수동천이 매우 좋음, 좋음이었으나 상류부는 보통, 중·하류부는 나쁨, 매우 나쁨으로 나타났다. 수질도 중류부터 하류까지 대부분 나쁨 또는 매우 나쁨이었고 지류 수동천만 매우 좋음이었다. 따라서 수질이 어류서식에 큰 영향을 미치면서 결국 하천건강성에 큰 영향을 주는 것으로 판단되었다. 연도별 신천의 수질은 점점 좋아지는 경향을 보였으며 외래종의 도입은 매우 부정적인 요인이었다. 신천의 하천건강성을 향상시키기 위해서는 수질개선과 더불어 외래어종의 관리가 요구된다.

• 수산해양기술연구
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• 제57권1호
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• pp.34-44
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• 2021

In order to collect basic information of response behavior of red seabream (Pagrus major) during pilling, works for constructing wind power station in Byeonsan Peninsular, Korea were investigated. Four cultured red seabream CRB1 to CRB4 [total length (TL): 27.1 ± 1.0 cm; body weight: 359 ± 30 g] were tagged with an acoustic tag and used in experiment. CRB1 and CRB2 to CBR4 were released on the sea surface at same time around the constructing site of the wind power plant on September 22, 2017 and July 18, 2018, respectively. The tracking of the CRB1 to CRB2 and CRB3 to CRB4 were conducted for two hours, approximately, using VR100 receiver including a directional hydrophone and VR2W receivers array consisted of 19 presence/absence receivers (VR2W receivers), respectively. The underwater noise level before (no pile driving works) and during pile driving works was measured 116.0-118.0 dB (re 1��Pa) and a maximum of 160 dB (re 1��Pa), respectively. CRB1 moved about 6.0 km with average swimming speed of 80.2 ± 20.5 cm/s for 2.1 hours without pile driving work. The average water depth of the sea bed on the route of CRB1 was 9.1 ± 0.4 m. CRB2 moved about 7.3 km with the average swimming speed of 96.8 ± 27.1 cm/s for 2.1 hours with pile driving work. The water depth of the sea bed on the route of CRB2 was 11.9 ± 0.6 m. At results of the Rayleigh's z-test two fishes CRB1 and CRB2 showed significant directionality in the movement (p < 0.01). Movement mean angles of CRB1 and CRB2 were 92.7 and 251.8°, respectively. CRB2, CRB3 and CRB4 exhibited the escaping behavioral response from the noise of source during the pile driving work. The swimming speed of the CRB2 exposed on the heavy underwater noise stimuli due to the pile driving work was 1.21 times faster than that of the CRB1 exposed on the ambient underwater noise in the study site.

• 대한본초학회지
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• 제28권4호
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• pp.71-76
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• 2013

Objectives : The biological activities and compound contents of herbal medicine vary depending on manufacturing processes. In this study, we compared anti-inflammatory effects and compound contents of three kinds of multi-herbal extract HT008 produced by different manufacturing processes in order to determine chemical and biological equivalence. Methods : HT008 was produced by three different manufacturing methods: 1. Freeze dried extract of Eleutherococcus senticosus, Scutellaria baicalensis and Angelica sinensis (HT008 FD), 2. Spray dried extract of E. senticosus and S. baicalensis combined with reflux extract of A. sinensis (HT008 SD), 3. Spray dried extract of E. senticosus and S. baicalensis combined with supercritial fluid extract of A. sinensis (HT008 SF). Anti-inflammatory effects were evaluated using acetic acid induced pain model and ${\lambda}$-carageenan induced paw edema model. Compound contents were evaluated by HPLC quantitative analysis of standard compounds of HT008, eleutheroside E, baicalin, z-ligustilide. Results : HT008 FD, HT008 SD and HT008 SF significantly decreased acetic acid induced pain index and ${\lambda}$-carrageenan induced paw edema volume compared with that of control group. There was no significant difference in efficacy among the HT008 FD, HT008 SD and HT008 SF. Standard compound contents of HT008 FD, HT008 SD and HT008 SF were quantified within the range of Korean pharmacopoeia or other research. Conclusions : Three different manufacturing methods of multi-herbal extracts have been developed without noticeable difference in the efficacy or compound contents. The results might be used to establish manufacturing process and industrialization of herbal extracts.

• Nuclear Engineering and Technology
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• 제54권11호
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• pp.4102-4110
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• 2022

Aiming at high-power and long-pulse operation up to 1000 s, some improvements have been made for both 2.45 GHz and 4.6 GHz lower hybrid (LH) systems during the recent 5 years. At first, the guard limiters of the LH antennas with graphite tiles were upgraded to tungsten, the most promising material for plasma facing components in nuclear fusion devices. These new guard limiters can operate at a peak power density of 12.9 MW/m². Strong hot spots were usually observed on the old graphite limiters when 4.6 GHz system operated with power >2.0 MW [B. N. Wan et al., Nucl. Fusion 57 (2017) 102019], leading to a reduction of the maximum power capability. With the new limiters, 4.6 GHz LH system, the main current drive (CD) and electron heating tool for EAST, can be operated with power >2.5 MW routinely. Long-pulse operation up to 100 s with 4.6 GHz LH power of 2.4 MW was achieved in 2021 and the maximal temperature on the guard limiters measured by an infrared (IR) camera was about 540 ℃, much below the permissible value of tungsten material (~1200 ℃). A discharge with a duration of 1056 s was achieved and the 4.6 GHz LH energy injected into the plasma was up to 1.05 GJ. Secondly, the fully-active-multijunction (FAM) launcher of 2.45 GHz system was upgraded to a passive-active-multijunction (PAM), for which the density of optimum coupling was relatively low (below the cut-off value). Good coupling with reflection coefficient ~3% has been achieved with plasma-antenna distance up to 11 cm for the new PAM. Finally, in order to eliminate the effect of ion cyclotron range of frequencies (ICRF) wave on 4.6 GHz LH wave coupling, the location of the ICRF launcher was changed to a port that is located 157.5° toroidally from the 4.6 GHz LH system and is not magnetically connected.

• 한국식생활문화학회지
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• 제25권4호
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• pp.389-399
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• 2010

This study was conducted in order to investigate and compare anthropometric measurements, bone density, nutrient intake, blood composition and food habits between non-smoking, non-alcohol drinking and smoking, alcohol drinking male university students in Seoul, South Korea. The data for food habits and health-related behaviors were obtained by selfadministered questionnaires. The BQIs of the subjects were measured by Quantitative Ultrasound (QUS). The subjects were divided into two groups: NSND (non-smoking and non-alcohol drinking, n=62) group and General (smoking and alcohol drinking, n=160) group. The results were analyzed using the SPSS program and were as follows: The average heights, weights, and BMIs of the two groups were 173.3 cm, 66.5 kg and 22.1 and 173.4 cm, 68.7 kg and 22.9, respectively. There were no differences between the groups regarding height, weight or BMI. SBP and DBP, however, were significantly higher in the general group than in the NSND group (p<0.01). The BQIs, Z-scores and T-scores of the two groups were 99.83, -0.23, and -0.31 and 98.24, -0.27 and -0.39, respectively, producing no significant differences between the two groups. The percentages for normal bone status, osteopenia and osteoporosis were 83.88%, 16.12% and 0.0% and 74.37%, 25.62% and 0.01%, respectively. Mean intakes of animal protein (p<0.05), animal fat (p<0.05), fiber (p<0.05), animal Ca(p<0.05), animal Fe (p<0.001), Zn(p<0.05), vitamin B1 (p<0.05) and niacin (p<0.05) were significantly different between the two groups, and mean serum levels of SGOT (p<0.01), SGPT (p<0.001), ${\gamma}$-GTP (p<0.001), triglycerides (p<0.01), total cholesterol (p<0.05) and hematocrit (p<0.05) were also significantly different between the two groups. Overall, there were no differences in meal regularity, frequency of snacking, reasons for overeating, exercise and defecation between the groups. However, favorite foods (p<0.05) and night-time meals (p<0.05) were significantly different. In conclusion, the health status of the NSND group was superior compared to the general group. Thus, students who smoke and alcohol drink should receive a practical and systematically-organized education regarding the increased health benefits of quitting smoking and alcohol drinking.