• Title/Summary/Keyword: 전재근

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Development of a Simultaneous Seed Separation and Drying Method of Red Pepper -Part II. Dehydration Effect on the Impact Seed Separation of Red Pepper- (고추의 동시탈종(同時脫種) 건조방법(乾燥方法)의 개발(開發)에 관한 연구 -제2보 열풍건조(熱風乾燥)가 고추씨의 충격분리(衝擊分離)에 미치는 영향-)

  • Chun, Jae-Kun;Park, Sang-Ki
    • Korean Journal of Food Science and Technology
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    • v.9 no.1
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    • pp.68-72
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    • 1977
  • Seed separation out of fresh red pepper by impact methods was effective but impossible to separate over 45% of seed. For the increase of seed separation, dehydration effect was studied with the slices of pepper. Heat deformation during the course of drying at hot air of 0. 61m/sec velocity at temperature of $65^{\circ}C$, increased the separation up to 93% with a halfcut pepper. Seed separation was remarkably different upon the location of cut, but it was completed prio tothe completion of drying in every cutting orientations. From these results a simultaneous seed separation and drying operation techniques is successfully developed.

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Development of a Simultaneous Seed Separation and Drying Method of Red Pepper -Part I. Red Pepper Seed Separation Methods and Their Momentum Analysis- (고추의 동시탈종(同時脫種) 건조방법(乾燥方法)의 개발(開發)에 관한 연구(硏究) -제1보 고추씨의 분리방법(分離方法)과 운동량(運動量)의 분석(分析)-)

  • Chun, Jae-Kun;Park, Sang-Ki
    • Korean Journal of Food Science and Technology
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    • v.9 no.1
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    • pp.61-67
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    • 1977
  • Seed separation from half-cut red pepper were investigated with free falling, up-and-down shaking and rotating collision methods. The separation rates were related with impact appiied and the rotating case was distinguished from the other two methods. Beside the impact effect, velocity of the pod and tumbling factors were involved. Momentum effectiveness of seed separation were calculated as $2.50{\times}10^{-6}$, $2.09{\times}10^{-6}$, and $3.94{\times}10^{-8}$ for free falling, shaking and rotating method on the same velocity basis, respectively. The tendency of separation rate was similar to that of red pepper drying rate against time.

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The Effect of Sun Light on Color Bleaching of Red Pepper Powder (일광(日光) 노출(露出)이 고추 가루의 탈색(脫色)에 미치는 영향)

  • Chun, Jae-Kun;Suh, Chung-Sik
    • Korean Journal of Food Science and Technology
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    • v.12 no.2
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    • pp.82-87
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    • 1980
  • The red color bleaching phenomena of red pepper powder by the exposure to sun light were studied on the various factors such as drying methods of pepper and the storage conditions of pepper powder, relative humidities, particle sizes, and the amounts and qualities of light. The surface color of red pepper was rapidly bleached by the successive daily exposures until the color retention value (capsanthin remained/original capsanthin content) reached to 0.5, while that of dark storge showed a negligible change. The color changes were related with the cumulative solar energy at various water activities $(a_w)$. As decreasing $a_w$ below 0.5, the bleaching reaction was highly accelerated, and thereafter was slowly progressed. Sun lights transmitted by red-, yellow- and blue-gelatin filters, respectivly, bleached in different degrees and at the shorter wavelength light, the more color bleaching occurred. From this fact a red colored package film could be effectivly used for the color preservation purpose in the red pepper storage.

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The effects of pulsed ultrasound and continued ultrasound intervention before an exercise on maximal voluntary isometric contraction and range of motion of exercise-induced muscle damage (운동 전 적용된 지속초음파와 맥동초음파가 운동 유발성 근육 손상의 최대등척성근력과 관절가동범위에 미치는 효과)

  • Kim, Ha Neul;Jeon, Jae Geun;Shin, Sung Phil
    • Journal of Korean Physical Therapy Science
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    • v.28 no.2
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    • pp.19-29
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    • 2021
  • Background: The purpose of this study was to investigate the effects of pulsed-ultrasound intervention and continued-ultrasound on the MVIC (maximal voluntary isometric contraction) and active ROM (range of motion) recovery of before EIMD (exercise-induced muscle damage). Design: Randomized controlled trial. Methods: Thirty subjects who are student in their 20s at a university participated in this study, these subjects were assigned into three groups, a control group (n=10), experiment group I (n=10) and experiment group II (n=10). The subjects in experimental group were intervened by pulsed-ultrasound and continued-ultrasound, while ones on control group weren't by any intervention after induced EIMD. Results: First, In comparison of the MVIC, in the among group comparison, the MVIC of continued-ultrasound group was significantly larger than those of other groups (p<.005). Second, In the among group comparison, the active extension angle of continued-ultrasound group was significantly smaller than those of other groups (p<.005). Third, In the among group comparison, the active flexion angle of continued-ultrasound group was significantly lager than those of other groups (p<.05). Conclusion: The above results revealed that the continued-ultrasound intervention before an exercise had a significantly improve of muscle function after EIMD. Therefore we can consider the continued ultrasound as a considerable intervention method to prevent or reduce an exercise injury.

The effect of Whole-body cryotherapy intervention after an eccentric exercise on PPT, CK and LDH of EIMD (원심성 운동 후 극저온 냉각치료 적용이 운동유발성 근육 손상 후 통증, CK 및 LDH에 미치는 효과)

  • Shin, Sung Phil;Kim, Ha Neul;Jeon, Jae Geun
    • Journal of Korean Physical Therapy Science
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    • v.28 no.3
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    • pp.30-41
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    • 2021
  • Background: The purpose of this study was to investigate the effects of WBC on the pressure pain threshold, CK and LDH after exercise-induced muscle injury. Design: A Randomized Controlled Trial. Methods: In this study, these subjects were assigned into three groups, a control group (n=10), experiment group I (n=10) and experiment group II (n=10). The subjects in experimental group I were intervened by WBC (-130℃, 3 minutes) before induced EIMD, experimental group II were intervened by WBC (-130℃, 3 minutes) after induced EIMD and control group weren't by any intervened after induced EIMD. Results: First, In the comparison of the PPT, there were significant variations with the lapse the time in three groups (p<.001) and there was a significant interaction of time and group (p<.001). In the among group comparison, the PPT of experimental group II was significantly larger than those of other groups (p<.01). Second, In the comparison of the CK, there were significant variations with the lapse the time in three groups (p<.001) and there was a significant interaction of time and group (p<.001). In the among group comparison, the CK of experimental group II was significantly smaller than those of other groups (p<.001). Third, In the comparison of the LDH, there were significant variations with the lapse the time in three groups (p<.01) and there was a significant interaction of time and group (p<.001). In the among group comparison, the LDH of experimental group II was significantly smaller than those of other groups (p<.001). Conclusion: The above results revealed that the WBC intervention after an exercise had a positive effect of muscle function after EIMD.

Feasibility of near-infrared spectroscopic observation for traditional fermented soybean production (전통 메주 제조과정에 있어서 근적외 모니터링 가능성 조사)

  • Jeon, Jae Hwan;Lee, Seon Mi;Cho, Rae Kwang
    • Food Science and Preservation
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    • v.24 no.1
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    • pp.145-152
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    • 2017
  • In this study, near infrared (NIR) spectroscopy known as a non-destructive analysis technique was applied to investigate peptide cleavage and consequent release of amino acids in soybean lumps as affected by its moisture content and incubation time during fermentation at 25 for 3 weeks. The NIR spectra of the soybean lump semi-dried and soaked in saline water showed that absorption intensity around 1,400 nm originating from hydrogen bonds of water decreased and absorption band shifted to 1,430 nm as moisture content decreased during incubation at 25 for 3 weeks. In addition, absorption around 2,050 nm which was assigned to amino groups increased as incubation time increased. NIR spectra data from 1,000 to 2,250 nm showed higher accuracy in the discriminant analysis between outside and inside parts of fermented soybean lumps than visible spectra result. NIR spectroscopy for the amino acid and moisture contents in traditional fermented soybean lumps showed relatively good accuracy with the multiple correlation coefficient ($R^2$) of 0.91 and 0.81, respectively, and root mean square error of cross validation (RMSECv) of 0.23 and 0.83%, respectively, in partial least square regression (PLSR). These results indicate that NIR spectral observations could be applicable to control the fermentation process for preparation of soybean products.

Intrusion of Supraspinatus Outlet by the Humeral Head in Rotator Cuff Disease (회전근 개 질환에서 상완골 두의 극상근 출구의 침범)

  • Chun Jae-Myeung;Bin Seong-Il;Kim Eugene;Lee Hoi-Jin;Kim Sung-Moon;Kim Key-Yong
    • Clinics in Shoulder and Elbow
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    • v.1 no.2
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    • pp.250-255
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    • 1998
  • Purpose of the study was to analyze the supraspinatus outlet image of sagittal MRI in rotator cuff disease. We analyzed the sagittal views of the shoulder MRI of 78 cases without cuff tear. The cases were divided into 51 cases of rotator cuff disease group and 27 cases of control group. Six parameters of acromial tilt, coracoacromial ligament angle, length and height of coracoacromial triangle, length of acromial side of the baseline and distance of intrusion of the humeral head were compared for each group. The distance of intrusion of the humeral head was the most significantly different one, 0.52cm for rotator cuff disease group and 0.15cm for control group. Intrusion of the humeral head to the supraspinatus outlet space from the bottom may be a contributing factor developing rotator cuff disease. The intrusion may precede to tearing of the rotator cuff.

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Influence of American and Japanese Architecture on Building the Post-war Korean Contemporary Architecture (전후 한국현대건축에 미친 미국과 일본건축의 영향 -미국에서 연수한 김정수와 일본에서 유학한 김수근을 중심으로-)

  • Ahn, Chang-Mo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.12
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    • pp.5974-5983
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    • 2011
  • This paper is a study to discover the influence of American and Japanese Architecture on Building the post-war Korean Contemporary Architecture by looking through the architectural works of KIM Jongsoo and KIM Swoo-Geun. To overcome the deteriorated Korean architectural production system, these two architects chose different solutions; KIM Jongsoo developed new materials and introduced industrialized production system based on his own research, and KIM Swoo-Geun tried to develope engineering capability via Korea Engineering Consultant Corp. supported by Korean government which led Korean economic development plan. The difference of their solutions was due to their different background; fund of studying abroad, architectural education system in USA & Japan respectively and preferred solutions of personal or national dimension.

Butachlor and 1,8- Nphthalic Anhydride Effects on Post - Germination Growth, Anatomy and Root - Cell Membrane Permeability of Rice (벼의 발아후(發芽後) 생육(生育), 세포형태(細胞形態) 및 근세포막(筋細胞膜) 투과성(透過性)에 미치는 BUTACHLOR 와 1,8-NAPHTHALIC ANHYDRIDE 의 영향(影響))

  • Chun, J.C.;Hwang, I.T.;Han, M.S.
    • Korean Journal of Weed Science
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    • v.5 no.1
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    • pp.56-62
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    • 1985
  • Effects of butachlor [N-(butoxymethyl)-2-chloro-2', 6'-diethyl acetanilide] and 1,8-naphthalic anhydride (NA) on post-germination growth, mesocotyl and root anatomy and root-cell membrane permeability of rice (Orvza saliva L.) were investigated. Lengths of mesocotyl and radicle were markedly decreased as the application rates of butachlor increased from 0.1 to 100 ppmW and NA from 1 to 100 ppmW, but there was no effect on coleoptile elongation. Application of butachlor-NA resulted in increase in coleoptile elongation, but decrease in mesocotyl elongation. Partial breakdown of cortical cells in root and mesocotyl was caused by either trutachlor or NA treatments, resulting in increase in intercellular air space. Further increase in the intercellular air space of root and mesocotyl was obtained when butachlor was applied in combination with NA. Increase in root-cell membrane permeability occurred when either butachlor or NA was applied. However, butachlor-NA treatments resulted in reduction in the permeability.

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The Correlation Between Forward Head Posture Used McKenzie Exercise and Plantar Pressure (멕켄지 운동 적용에 따른 전방머리자세와 족저압의 상관관계)

  • Han, Ji-Hoon;Kim, Jung-Hyun;Jung, Min-Keun;Ju, Tae-seong;Jeon, Jae-guk
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.22 no.1
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    • pp.65-70
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    • 2016
  • Background: To determine the correlation Between forward head posture and plantar pressor in a McKenzie Exercise. Methods: This study had a cross-sectional design. There are included 20 participants with forward head posture. We measured the craniovertebral angle (CVA), cranial rotation angle (CRA) by image obtained digital camera and the plantar pressure, static balance using Gait Analyzer each before and after McKenzie Exercise. Results: There was negative correlation between CVA and CRA (p<.05). There was negative correlation between CVA and fore foot(p<.05). There was positive correlation between CRA and both fore foot (p<.05). There was negative correlation between CVA and static balance(p<.05). There was positive correlation between CRA and static balance (p<.05). Conclusions: There is a correlation between the change a mount of forward head position and plantar pressure in the McKenzie Exercise.

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