• Title/Summary/Keyword: IRI

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Studies on Amino Acid Composition of Korean Foods ( I ) (Amino Acid Composition of Rice Varieties Recommended to Raise) (한국 식품중의 아미노산 조성에 관한 연구 ( I ) (쌀 다수확 장려품종의 아미노산 조성))

  • Kim, Eul-Sang;Im, Kyung-Ja;Park, Hoon;Chun, Sung-Kyu
    • Korean Journal of Food Science and Technology
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    • v.10 no.4
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    • pp.371-375
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    • 1978
  • The analysis on the amino acid composition of rice varieties including one Japonica line(Jinheung) and five other Indica-Japonica breedings (Tongil, Suwon, Iri, Ushin, Milyang) recommended to raise, have been carried out to evaluate the quality and quantity of protein of them. 1) The protein contents of 5 breedings showing higher than 8.16% of Jinheung were 9.63% in 23-Milyang, 9.45% in 326-Iri, 9.36% in 264-Suwon, 8.88% of Ushin and 8.77% of Tongil. 2) The gram of total essential amino acid per gram of total nitrogen (E/T ratio) have been 2.11 in Iri, 2.10 in Tongil, 2.04 in Suwon, 2.01 in Ushin, 1.92 in Milyang and 1.83 in Jinheung. 3) The chemical scores of proteins (A/E) were 84.8 in Tongil, 83.2 in Suwon, 80.8 in Ushin, 78.4 in Iri, 89.5 in Milyang and 94.9 in Jinheung. 4) The most limiting amino acid in Jinheung was isoleucine, while that in Tongil, Suwon, Ushin, Iri and Milyang was lysine.

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Development of an Automatic Transverse and Longitudinal Road Profile Measurement System (노면 종.횡단 요철 자동 측정 시스템 개발)

  • Eom, Jung-Hyun;Seo, Dong-Sun;Huh, Woong;Roo, Myong-Chan;Kim, Joon-Bum
    • Journal of IKEEE
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    • v.5 no.1 s.8
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    • pp.75-84
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    • 2001
  • The reliable data relating to the condition of road surface is of increasing importance to deliver the road condition to driver and road management authority. This paper describes the development of a new high-speed. automatic, road data collection system, which collects the longitudinal road data with ${\sim}30cm$ interval covering full width of the road at 100km/h speed. The system calculates the international roughness index (IRI) from the collected data and displays the IRI and road profile data on the screen. To develope the system, we implement an optical range finder, advanced distance and motion detectors, and signal processing and display modules. The measurement accuracy of the system at 70km/h operation speed shows ${\pm}0.1m/km$ in the IRI for the standard road. To confirm the performance of the developed system, we also measure the IRI of a deployed highway road and compare the results with a conventional system and human eye measurement results.

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A Study on the Relation between IRI and PrI (평탄성 지수 IRI와 PrI의 상관관계에 관한 연구)

  • Kim, Kook-Han;Lee, Byung-Duck;Choi, Go-Il;Yang, Sung-Cheol
    • International Journal of Highway Engineering
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    • v.5 no.1 s.15
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    • pp.11-18
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    • 2003
  • Road roughness, as the key factor influencing not only drivers' ride quality and safety but also pavement deterioration, is one of the most important pavement performance indicator to be evaluated by users' subjective assessment. For this reason, a specific number of the pavement roughness has been adopted to monitor the condition of a road for pavement management systems and to evaluate the quality of newly constructed sections, however, none of the unified methodology was internationally accepted. In Korea highway network, road roughness has been used mainly to evaluate newly placed pavement by using 7.6m CP (California Profile meter) to calculate PrI (Profile Index). But this instrument is manually operated to measure road profiles by traffic closure and their interpretation depends on personal bias. Therefore, problems arisen from the manually operated instrument will be overcome by using the APL (Longitudinal Profile Analyzer) which can be operated in the speed of 80km per hour. A study was conducted to correlate the relation from both concrete and asphalt pavement between IRI (measured by APL) and PrI (measured by 7.6m CP). Test results showed that there was a good correlation between IRI and PrI.

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Grain Quality Characteristics for Brewing in Rice (벼품종의 양조적성관련 미질특성)

  • Ha, Ki-Yong;Lee, Jae-Shin;Kwon, Eui-Kyeon;Lee, Jae-Kil;Lee, Seon-Yong;Park, Nou-Poung;Park, Keun-Yong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.39 no.1
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    • pp.38-44
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    • 1994
  • The study was conducted to investigate some grain quality characters related with brewing fittness for rice wine by adopting eight rice varieties as materials. Six japonica rice varieties except two Tongil-type rice had short and round grain of 1.80 or lower grain length/width ratio. 1000-grain weight of brown rice was 21.7~29.5g of significant difference among varieties. The white-center of rice grain was most severe in Hidahomare and Iri 402. Among tested varieties, Seomjinbyeo, Iri 402, Dongjinbyeo and Hidahomare had 50% or higher head rice ratio, while the others had relatively worse milling properties resulted from higher ratio of notched-belly and broken grain. Chemical components and total acid and amino acid content of refined rice wine was relatively good in every variety. Liquifying and saccharificating power was higher and koji conditon was also good in the varieties of high head rice ratio. Seomjinbyeo, Dongjinbyeo and Iri 402 was preferred in sensory test of refined wine and was recognized as superior adaptable rice varieties for brewing rice wine.

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Studies on the Effect of Different of Climatic Environment During Nursery Period on Rice Growth and Yield (묘대일수에 따른 기상환경의 차이가 수도생육 및 수량에 미치는 영향)

  • Choi, S.I.;Whang, S.P.;Nho, S.P.;Lee, D.G.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.2
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    • pp.65-73
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    • 1979
  • Experiment was conducted to study the optimum sowing date and nursery duration at Jean An from 1976 to 1978 and their influence on the growth, dry matter production during growth period of the rice plant. In case of Tongil lines, the lengthening of nursery duration and late sowing increased unexpected heading and prolonged heading and maturing period. High yield were obtained by increasing dry matter accumulation during growth period of rice plant. To obtain safe yield in Tongil lines transplanting must be done before May 30th.

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Social Disaster Adaptation Experiences of Railroad Workers: Focused on the Iri Station Explosion of 1977 (철도종사자의 사회 재난 적응 경험: 1977년 이리역 폭발 사고를 중심으로)

  • Jung, Ho Gi;Yang, Ya Ki
    • Korean Journal of Occupational Health Nursing
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    • v.28 no.1
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    • pp.1-11
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    • 2019
  • Purpose: The Iri station explosion that occurred in 1977 was a major social disaster in Korea, caused by a fire in a train equipped with explosives. The purpose of this study was to investigate the social disaster adaptation experiences of railroad workers. Methods: This study was based on qualitative research using phenomenological methodology. Participants were six railroad workers who experienced the Iri station explosion. Data were collected through in-depth interviews with individual workers from March to June, 2018. The data analysis method was based on Colaizzi's approach. Results: Experiences of railroad workers were categorized into 12 themes and the following 6 theme clusters: (1) Anxiety due to the extreme vibration and crash, (2) Terror regarding the horrible situation that one cannot face, (3) Anger about the cause of the explosion and a sense of relief about survival, (4) Confusion regarding different rumors, (5) Various efforts to return to daily life, and (6) Trauma that continues to exist. Conclusion: The findings of this study recommend that railroad organizations and managers should pay attention to enhance disaster preparedness and develop organizational disaster coping guidelines for members. The results of this study can help us to better understand the various aspects of the Iri station explosion of 1977.

Effect of Sulfer Containing Fertilizers on Grain Yield and Chemical Composition of Soybean (황함유 비료가 콩의 종실수량과 성분함량에 미치는 영향)

  • Chae, Jae-Suk;Kim, Young-Doo;Park, Tae-Ill;Chang, Young-Sun;Park, Keun-Yong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.2
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    • pp.183-188
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    • 1993
  • This experiment was conducted to investigate the effect of sulfur containing fertilizers on growth, yield and nutritive quality of soybean as affected by lime application at reclaimed soil. Lime application for neutralization requirements showed the effect of increased grain yield about 32% compared to the non application at newly opened land of red and yellow soil. In case of lime application, the sulfur containing fertilizers combined with super phosphate, ammonium sulfate, and gypsum increased the grain yield by 31%, 11%, and 3%, respectively. When lime was not applied, magnesium carbonate application increased the yield by 47%, super phosphate by 22%, and gypsum by 15%. The protein content of grain was higher at lime application than those of non lime application and was increased by the application of sulfur containing fertilizer. But lipid content was not affected by lime or sulfur application. From the above results obtained it was concluded that sulfur fertilizer effect under lime application was significant when combined with super phosphate or ammonium sulfate application. Magnesium carbonate or super phosphate application was the best combination with sulfur-containing fertilizer.

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Radioimmunoassay of Plasma Insulin during Oral Glucose Tolerance Test in Thyrotoxicosis (갑상선(甲狀腺) 기능항진증(機能亢進症)에서의 경구적(經口的) 당부하시험시(糖負荷試驗時) 혈장(血漿) Insulin의 변동(變動))

  • Lee, Hong-Kyu;Koh, Chang-Soon;Lee, Mun-Ho
    • The Korean Journal of Nuclear Medicine
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    • v.5 no.1
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    • pp.65-70
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    • 1971
  • Blood glucose and immunoreactive insulin (IRI) were measured during oral glucose tolerance test in 15 thyrotoxic patients and 8 normal controls, to study the glucose metabolism in thyrotoxicosis. Following were the results; 1. In thyrotoxicosis, there is noticed late rise and late fall of plasma IRI durnig oral glucose tolerance test, like as phenomenon of mild diabetes mellitus. 2. When the thyrotoxic patients were divided into normal and abnormal responsive groups after the level of blood glucose by Wilkerson Criteria, no significant differences in plasma IRI levels were noticed between two groups. 3. This result may be interpreted as relative deficiency of insulin secretion from panceas and suggest genetically related defects.

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TEMPERATURE DISTRIBUTION OF THE IONOSPHERIC PLASMA AT FLAYER

  • Rhee, Hwang-Jae
    • Journal of Astronomy and Space Sciences
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    • v.14 no.2
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    • pp.269-274
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    • 1997
  • Langmuir probe was housed in the sounding rocket to test the probe's performance and to find the environmental parameters at the F layer of the ionosphere. The gold plated cylindrical probe had a length of 14㎝ and a diameter of 0.096 ㎝. The applied voltage to the probe consisted of 0.9 sec fixed positive bias followed by 0.1 sec of down/up sweep. This ensured that the probe swept through the probe's current-voltage characteristic at least once during 1 second quiescent periods enabling the electron temperature to be measured during the undisturbed times of the flight. The experimental results showed good agreement of the temperature distribution with IRI model at the lower F layer. In the upper layer, the experimental temperatures were 100-200K lower than the IRI model's because of the different geomagnetic conditions: averaged conditions were used in IRI model and specific conditions were reflected in the experiment.

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