• 제목/요약/키워드: Period of peak

검색결과 1,586건 처리시간 0.034초

된장의 쓴맛 펩타이드 특성 (Characteristics of bitter peptides from Doenjang)

  • 홍혜정;이혜수
    • 한국식품조리과학회지
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    • 제10권1호
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    • pp.45-50
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    • 1994
  • 본 연구에서는 재래식 된장, Asp. oryzae를 이용한 고지와 소금의 배합을 달리한 개량식 된장 세가지(A; 쌀고지 :콩 :소금:53 : 100 : 33, B: 쌀고지 .콩 :소금=100 : 100 : 40, C: 쌀고지 :콩 :소금=200 : 100 : 40)를 만들어 일반 성분의 변화와 쓴맛 펩타이드의 특성을 살펴보고 쓴맛 펩타이드가 된장의 수응도에 어떠한 영향을 미치는지를 알아보았다. 1. 4가지 된장 모두 총질소는 발효기간 중 약간씩 증가하였으며 아미노산태 질소는 크게 증가하였다. 특히 재래식 된장의 아미노산태 질소는 다른 시료에 비해 큰폭의 증가를 보였다. 환원당은 쌀고지를 첨가한 된장의 경우 함량이 월등힌 많았으며 숙성됨에 따라 모든 된장이 증가 추세를 보였다. pH는 된장이 숙성됨에 따라 점차로 저하하였으며 고지가 첨가된 된장의 경우 더욱 산성을 띠었다. 2. 숙성시킨 된장에서 쓴맛 펩타이드의 특성을 알아보기 위해 소수성 펩타이드를 2 : 1(v/v) Chloroform-me-thanol로 추출하였다. 추출된 추출물을 겔 크로마토그래피를 사용하여 분자량별로 분리하고 다시 TLC로 정제하였다. 정제된 펩타이드는 쓴맛 검사를 하여서 쓴맛을 나타내는 펩타이드를 얻었다. 쓴맛 펩타이드의 아미노산 조성은 다음과 같다. 재래식 된장 peak 1-1. Trp-(Asp, Arg, Thr, Ser, Glu, Pro)-Phe 개량식 된장 B peak 1 Trp-(lie, Pro, Asp, Lys, Val, Glu)-Trp 개량식 된장 B peak 1 Trp-(lie, Pro, Asp, Lys, Val, Glu)-Trp 개량식 된장 C peak 1-2 Trp-(tyr, Thr, Glu, Pro, Gly)-Phe. 3. 관능검사의 결과를 Pearson 상관관계를 알아본 결과 쓴맛과 전체적인 수응도와의 상관관계는 높지 않았다.

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IMF 기간 일간신문 분양광고에 나타난 아파트 단지 옥외공간의 차별화 내용 및 요소 (The Differentiated Contents & Elements of Outdoor Space in Apartment Complex Shown on the Advertisement of Daily Newspaper during the Period of IMF)

  • 김대현
    • 한국조경학회지
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    • 제32권4호
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    • pp.71-82
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    • 2004
  • During the IMF period the unsold of apartment housing was significantly increased due to financial problems. Apartment constructors had to severely struggle with fund problems and even some of them were bankrupted. Due to this fact, they had to find new marketing strategies to sell the apartment complexes even with low margins. One of the solutions was that housing companies could present a distinctive and outstanding outdoor space in apartment complexes. The purpose of this study was to investigate such differentiated marketing strategies by reviewing the apartment housing advertisements during the IMF period. The major findings through this study were as follows: 1. During the IMF period housing companies presented a distinctive and outstanding outdoor space in apartment complexes. In 1999, which was the peak of the IMF impact, there were frequent advertisements for apartment housing in daily newspapers. 2. Daily newspapers had been mostly used for advertising the apartments. A thorough review of them is very valuable in investigating differentiated marketing strategies of the outdoor space in apartment complexes. 3. The main theme of differentiation of outdoor space can be summarized as : Emphasis of the importance of healthy life, application of environment-friendly facilities, and use of traditional korean style elements in apartment complexes.

Seismicity and seismic hazard assessment for greater Tehran region using Gumbel first asymptotic distribution

  • Bastami, Morteza;Kowsari, Milad
    • Structural Engineering and Mechanics
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    • 제49권3호
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    • pp.355-372
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    • 2014
  • Considering the history of severe earthquakes and the presence of active faults in the greater Tehran region, the possibility of a destructive earthquake occurring is high and seismic hazard analysis is crucial. Gumbel distributions are commonly-used statistical distributions in earthquake engineering and seismology. Their main advantage is their basis on the largest earthquake magnitudes selected from an equal-time predefined set. In this study, the first asymptotic distribution of extremes is used to estimate seismicity parameters and peak ground acceleration (PGA). By assuming a Poisson distribution for the earthquakes, after estimation of seismicity parameters, the mean return period and the probable maximum magnitude within a given time interval are obtained. A maximum probable magnitude of 7.0 has a mean return period of 100 years in this region. For a return period of 475 years, the PGA in the greater Tehran region is estimated to be 0.39g to 0.42g, depending on local site conditions. This value is greater than that of the Iranian Code for Seismic Design of Buildings, indicating that a revision of the code is necessary.

제주도 고산지역 입자특성 : 1994년 3월 11일 - 17일 측정결과 (Characteristics of particles at Kosan, Cheju Island: Intensive study results duting March 11 .sim. 17 1994)

  • 김용표;심상규;문길주;백남준;김성주;허철구;강창희
    • 한국대기환경학회지
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    • 제11권3호
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    • pp.263-272
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    • 1995
  • Characteristics of anbient at Korean, Cheju Island have been studied during the intensive field study period on March 11 .sim. 17, 1994 in collaboration with other research organizations from Korea and abroad. The particle size distribution was measured using an Electrical Aerosol Analyzer(EAA) and an Optical particle Counter(OPC). Fine particles(PM1 and PM3) have been collected by filter pack samplers and their ionic compositions have been analyzed. sampling errors inherent to the filter pack sampling method are discussed and the method to analyze those errors are presented. The rine mass concentrations of this study show very similar mass concentrations when Seoul is clear. This is somewhat surprising result, because the most of researchers believe that Kosan is one of the cleanest area in Korea. Bimodal volume size distributions with peak values around 0.1 .sim. 0.2.mu.m and 3.mu.m in particle dimeter were observed for most of the measurement period, particle mass loadings and ionic composition data show a large fraction of particles are from non-sea salt origins. Estimation of water content and acidity of particles based on measurement by a gas/particle equilibrium model, SCAPE, reveals that the pH values of particles are comparable to or lower than those estimated based on measurements in Los Angeles, U.S.A. during the SCAQS study. These findings with the meteorological conditions during the study period suggest that the particles collected during the period have originated from outside Cheju Island.

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호흡연습장치를 적용한 호흡교정법의 영향 평가 (Efficacy of a Respiratory Training System on the Regularity of Breathing)

  • 신은혁;박희철;한영이;주상규;신정석;안용찬
    • Radiation Oncology Journal
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    • 제26권3호
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    • pp.181-188
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    • 2008
  • 목 적: 호흡을 고려한 사차원방사선치료의 효용성 증대를 위하여, 규칙적이고 안정된 호흡주기 및 호흡량을 갖도록 환자를 교육하고 호흡을 연습시키는 호흡연습장치 및 프로그램을 자체 제작하여 유용성을 평가하였다. 대상 및 방법: 호흡연습장치를 사용시 및 사용후의 호흡의 규칙도의 변화를 측정하기 위해 11명(자원자 9명, 환자 2명)을 대상으로 실험을 실시하였다. 자유롭게 호흡하는 '자유호흡(free-breathing)'법, 자유호흡 시 시뮬레이션 된 표준 호흡주기를 따라함으로써 일정한 호흡주기를 만드는 '신호모니터-호흡(guided-breathing)'법 및 호흡연습 후 시뮬레이션 신호 없이 호흡하는 '연습 후 호흡(postguided-breathing)'법 등 3가지 방법으로 호흡주기를 기록하여 호흡주기(PTP (Peak To Peak))와 호흡크기(Amplitude) 및 호흡패턴(Area, RMS (Root Mean Square))의 변화를 정량적으로 분석하였다. 결 과: 호흡주기를 보여주는 PTP 값은 '신호모니터-호흡'에서 표준편차 값(standard deviation)이 의미 있게 감소하여 호흡주기가 더 규칙적이었고(자유호흡 0.568 vs 신호모니터-호흡 0.344, p=0.0013), '연습 후 호흡'법에서는 '자유호흡' 시보다 표준변동치가 낮아 호흡주기가 보다 안정적이었으나 통계적으로 유의한 차이는 없었다(자유호흡 0.568 vs 연습 후 호흡 0.512, p=ns). 호흡량 측정 결과는 '자유호흡'보다 '신호모니터-호흡'의 경우 호흡량의 표준편차 값이 낮아 호흡량이 보다 일정하게 유지되었으나 통계적으로 유의한 차이는 없었다(자유호흡 1.317 vs 신호모니터-호흡 1.068, p=0.187). 호흡 패턴은 '자유호흡'과 '모니터 호흡' 사이에는 큰 차이가 발생하지 않았지만, '연습 후 호흡'에서는 호흡주기 내 호흡함수의 평균 면적이 7% 감소하였고 RMS 값은 5.9% 감소를 보였다. 결 론: '신호모니터-호흡'에서 호흡주기 및 호흡량이 가장 일정하게 유지되었다. 호흡연습의 효과는 시뮬레이션 신호 없이 호흡하는 '연습 후 호흡'의 경우 시간 경과에 따라 감소할 것으로 판단되었다. 본 연구에서 제작한 호흡연습장치 및 프로그램은 호흡의 주기의 규칙성과 호흡량을 일정하게 유지시키는데 효과적으로 평가되었다.

솔잎혹파리 우화(羽化)와 아까시나무 개화시기(開花時期)의 관계(關係) (Relationships between the Flowering Time of Black Locust (Robinia pseudoacacia L.) and Emergence Period of Pine Gall Midge (Thecodiplosis japonensis U. et I.))

  • 고제호
    • 한국산림과학회지
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    • 제26권1호
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    • pp.43-47
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    • 1975
  • 이것은 서울, 광릉(光陵), 전주(全州), 경주지방(慶州地方)에서 솔잎혹파리성충(成虫)의 우화시기(羽化時期)와 이의 표현표식(表現標識)으로 아까시나무의 개화시기(開花時期)를 조사(調査)한 것이다. 1. 솔잎혹파리성충(成虫)의 우화(羽化)는 그 지방(地方)의 아까시나무꽃의 개화(開花)가 시작되는 시기(時期)에 시작된다. 2. 솔잎혹파리성충(成虫)의 우화(羽化)는 그 지방(地方)의 아까시나무꽃의 만개(滿開)하는 시기(時期)에 그 최성기(最盛期)에 드러가며 주락기(淍落期)까지 계속(繼續)된다. 3. 솔잎혹파리성충(成虫)의 우화최성기(羽化最盛期)에 꽃이 만개(滿開)하는 식물(植物)은 아까시나무이외(以外)에 백당나무, 찔레나무, 꽃창포 등(等)이 있다.

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A comparative analysis of seismic and structural parameters for historical period earthquakes in Türkiye

  • Ercan Isik
    • Earthquakes and Structures
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    • 제24권5호
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    • pp.377-391
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    • 2023
  • The high seismic risk has once again revealed in Türkiye with two major earthquakes that occurred on 06.02.2023, which took its place among the most destructive earthquakes in the last century. Totally, 65 earthquakes that occurred in the historical period in Türkiye were taken into account within the scope of this study. The seismic parameters were compared by considering the last two earthquake hazard maps for the epicenters of these earthquakes. Earthquake Intensity (I) of historical earthquakes were converted to Peak Ground Acceleration (PGA) by using suggested relations. Structural analyzes were performed for a sample reinforced-concrete building by using the obtained PGA's and predicted PGA's in the last two earthquake hazard maps. In the structural analysis, two different material groups such as low (C12-S220) and normal (C25-S420) were selected. As the material strength increased, the period value decreased, while the seismic capacity and stiffness increased. It has been determined that there are differences between the measured and proposed seismic risks for some earthquakes, and as a result, there are significant differences between the expected target displacement values from the structures. Therefore, it will not be possible to estimate the damage and to determine the building performance realistically. The main purpose of the study is to reveal whether the earthquake risk is adequately represented on seismic and structural parameters.

Changes of Chemical Composition in Blood Serum during the Antler Growth Period in Spotted Deer (Cervus nippon)

  • Jeon, B.T.;Kim, M.H.;Lee, S.M.;Thomas, David G.;Moon, S.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제19권9호
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    • pp.1298-1304
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    • 2006
  • The aim of this study was to provide basic haematological information to allow improved nutritional management for velvet production in spotted deer (Cervus nippon) by investigating biochemical changes in blood values during the antler growth period. Blood samples, obtained from the jugular vein of twenty-five deer, were taken every 10 days from casting (day 0) to harvesting (day 50) of velvet antler. Negligible changes were found in the concentrations of total protein, albumin, and creatinine during the antler growth period, but there were significant changes in the concentrations of urea (p<0.05) and uric acid (p<0.01). The concentration of triglyceride was significantly higher (p<0.05) during the antler growth period compared to casting time, while serum high-density lipoprotein concentrations were low and remained unchanged during the antler growth period. Serum glucose concentration increased (p<0.05) significantly and was slightly changeable during antler growth. The serum concentrations of Ca and P did not fluctuate during antler growth, while those of Na, K and Cl showed slight differences between the time of casting and the rest of the antler growth period. No significant changes in concentrations of AST, ALT, amylase, CK, GGT and LDH were detected during the antler growth period. However, the concentration of ALK-P increased during antler growth reaching its peak on day 50 after casting. We found a significant difference in the concentration of ALK-P between the time of casting and the rest of the antler growth period (p<0.01). Consequently, antler growth was associated with mild changes in measured serum biochemical values with the exception of ALK-P activity in spotted deer.

간접구(間接灸)의 제품별(製品別) 보온기(保溫期) 연소특성(燃燒特性)에 관한 연구(硏究) (The experimental study on the Characteristics of the Moxa-Combustion in the retaining period of indirect moxibustion)

  • 윤정선;조명래;윤여충;박영배
    • Journal of Acupuncture Research
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    • 제17권1호
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    • pp.75-88
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    • 2000
  • In order to obtain the clinical data on the different effects of the three different methods of indirect moxibustion, moxa-combustion time, peak temperature, average temperature, maximum gradient temperature, average gradient temperature, and moxa-combustion calorie rate of the retaining period in ARIRANG, JANG, PUNG were measured through this experiment. The results of the experiment were as follows : 1. In the combustion time, during the retaining period ARIRANG had the longest combustion time followed by PUNG, JANG in a descending order. ARIRANG and JANG were acknowledged to have significant difference with PUNG. ARIRANG and JANG however were not acknowledged to have difference each other. 2. In the average temperature, during the retaining period, PUNG had the highest temperature followed by JANG, ARIRANG in a descending order. ARIRANG and JANG were acknowledged to have significant difference with PUNG. ARIRANG and JANG however were not acknowledged to have difference each other. 3. In the maximum gradient temperature, during the retaining period, PUNG had the highest temperature followed by JANG, ARIRANG in a descending order. JANG and PUNG were acknowledged to have significant difference with ARIRANG. JANG and PUNG however were not acknowledged to have difference each other. 4. In the average gradient temperature, during the retaining period, JANG had the highest temperature followed by ARIRANG, PUNG in a descending order. ARIRANG and JANG were acknowledged to have significant difference with PUNG. ARIRANG and JANG however were not acknowledged to have difference each other. 5. In the moxa-combustion calorie rate, during the retaining period, PUNG had the highest temperature, ARIRANG, JANG were founded in error limits. ARIRANG and JANG were acknowledged to have significant difference with PUNG. ARIRANG and JANG however were not acknowledged to have difference each other.

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신생아기에 진단된 미토콘드리아 질환 3례 (Three Cases of Mitochondrial Disorders in the Neonatal Period)

  • 김윤희;이영목;남궁란;김정은;이순민;박국인;김세훈;이진성
    • Neonatal Medicine
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    • 제17권2호
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    • pp.254-261
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    • 2010
  • 신생아에서의 미토콘드리아 질환은 임상 증상이 다양하고 비특이적이라 진단이 어렵고, 치명적으로 생존율이 낮기 때문에 이에 대한 연구는 미비하다. 본 연구에서는 신생아기에 미토콘드리아 질환 소견으로 치료한 3례를 보고하였다. 증례 1은 갑작스럽게 발생한 강직성 경련, 의식 소실 및 심한 대사성 산증과다기관 기능 부전으로 미토콘드리아 병증이 의심되었다. 혈장내 젖산/피루브산염 비가 55.6, 아미노산 검사에서는 알라닌 2,237 nmol/ml로 증가되었다. 증례 2에서는 급성 부신기능부전과 급성 신부전으로 복막 투석을 하였으나 대사성 산증이 지속되었다. 혈장 내 젖산/피루브산염 비가 23.9였고, 근 조직을 이용한 효소 분석에서 1번 복합체의 호흡 사슬 결함이 진단되었다. 증례 3은 출생 후 2개월간 반복되는 대사성 산증과 기면, 수유 곤란 소견을 보였다. 혈장 내 젖산/피루브산염 비가 19.4로 정상 범위의 경계에 있었으나 뇌척수액 검사상 젖산/피루브산염 비가 57로 현저하게 증가된 소견을 보였고, 뇌 자기 공명 분광경 검사에서 lactate peak 소견을 보였다. 근 조직을 이용한 효소 분석에서 2번 복합체의 호흡 사슬 결함이 진단되었다. 세증례 모두에서 미토콘드리아 질환 소견으로 비타민, 조효소 Q10 및 L-카르니틴을 투여하였다.