• Title/Summary/Keyword: Journal of a hunter

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Studies on Quality Characteristics of Pork Classified by Hunter L Value (Hunter L 값에 따른 돈육의 육질 특성 연구)

  • 박범영;유영모;조수현;채현석;김진형;안종남;이종문;윤상기
    • Food Science of Animal Resources
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    • v.21 no.4
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    • pp.323-328
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    • 2001
  • Meat quality of the domestic pork carcasses(n=330) classified in 3 groups according to the Hunter L values postmortem($\leq$50, 50.1∼55.0 and $\geq$55.1) was investigated. The carcass temperature(3, 5, 10 and 15hr postmortem) and temperature falling rate of postmortem increased as the Hunter L value increased. The pH postmortem(pH$\_$ohr/, pH$\_$24hr/) decreased as the Hunter L value decreased. In physical traits, the water holding capacity(WHC) increased and the purge loss decreased as the Hunter L value increased. However, shear force, cooking loss and fat hardness were not significantly different among different. Hunter L value groups(p<0.05). The meat color indices(CIE L*, a*, b*, chroma, hue and ΔE) increased as Hunter L value increased. The sensory characteristics had no significant difference among different Hunter L value groups(p<0.05). In conclusion, the results suggested that Hunter L values were related with pork quality such as temperature, pH, physical traits and color.

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ANALYTIC SOLUTIONS OF THE CAUCHY PROBLEM FOR THE GENERALIZED TWO-COMPONENT HUNTER-SAXTON SYSTEM

  • Moon, Byungsoo
    • Honam Mathematical Journal
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    • v.37 no.1
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    • pp.99-112
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    • 2015
  • In this paper we consider the periodic Cauchy problem for the generalized two-component Hunter-Saxton system with analytic initial data and we prove a Cauchy-Kowalevski type theorem for the generalized two-component Hunter-Saxton system, that establishes the existence and uniqueness of real analytic solutions.

Bow Hunter's Stroke Caused by a Severe Facet Hypertrophy of C1-2

  • Chough, Chung-Kee;Cheng, Boyle C.;Welch, William C.;Park, Chun-Kun
    • Journal of Korean Neurosurgical Society
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    • v.47 no.2
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    • pp.134-136
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    • 2010
  • Bow hunter's stroke is a rare symptomatic vertebrobasilar insufficiency in which vertebral artery (VA) is mechanically occluded during head rotation. Various pathologic conditions have been reported as causes of bow hunter's stroke. However, bow hunter's stroke caused by facet hypertrophy of C1-2 has not been reported. A 71-year-old woman presented with symptoms of vertebrobasilar insufficiency. Spine computed tomography showed massive facet hypertrophy on the left side of C1-2 level. A VA angiogram with her head rotated to the right revealed significant stenosis of left VA. C1-2 posterior fixation and fusion was performed to prevent serious neurologic deficit from vertebrobasilar stroke.

A Case Report of Hunter Syndrome (Hunter 증후군 환아 증례 1례 보고)

  • Kim, Yoon-Young;Seo, Young-Min;Kim, Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.21 no.2
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    • pp.145-152
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    • 2007
  • Objectives The purpose of this study is to report a case that has an important meaning as a result of treating. Hunter syndrome patient with oriental medicine for elevation of quality of life and continuous health care. Methods The patient had abdominal dropsy, abdominal pain, constipation, frequent gases and the common cold, so we treated him with herbal medicine, acupuncture, infra red, laser, CEP nebulizer, aroma massage and cupping. Results After the treatment, the girth of abdomen didn't Increase any more, and abdominal pain, constipation, frequent gases and common cold were improved. Conclusions This study shows that oriental medicine can elevate the Hunter syndrome patient's quality of life with continuous heath care and treatment for major problem. For more accurate studies, further studies would be needed with more cases.

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Visual Color Deterioration of the Extract of Lithospermi radix (자초(紫草)추출물의 외관상 변색)

  • Yoon, H.N.;Kim, H.;Shin, Y.D.;Yoo, M.Y.
    • Korean Journal of Food Science and Technology
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    • v.17 no.6
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    • pp.426-430
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    • 1985
  • The effects of temperature on the visual color deterioration of Lithospermi radix were investigated under steady conditions of various pH and temperature. The changes of Hunter L, a, b, and ${\Delta}E$ values related to the color deterioration were sharply increased above $50^{\circ}C$ and the deteriorations were expressed linear relationships with the temperature above $60^{\circ}C$. Linear regression coefficients of Hunter L, a, b values decreased with an increase of heat treatment time, whereas the color difference was increased. The linear regression coefficients of Hunter L, a, b, ${\Delta}E$ values in 66.7% ethanol extract solution of Lithospermi radix for 1 hr were -0.3696, -0.4124, -0.2279, and 0.5983, respectively. Inear regression coefficients in color difference (${\Delta}E$) could be calculated from the coefficients in Hunter L, a, b values. The low pH treatment of extract from pH 6.07 to pH 1.35 led to decrease of Hunter a value and a little increase of Hunter L, b values, but the high pH treatment above pH 6.07 decreased all Hunter values. Particularly, the visual color of the extract of Lithospermiradix was appeared to be faborable at pH 4.0-6.5, which was a bright red color.

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WORM-HUNTER: A Worm Guard System using Software-defined Networking

  • Hu, Yixun;Zheng, Kangfeng;Wang, Xu;Yang, Yixian
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.11 no.1
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    • pp.484-510
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    • 2017
  • Network security is rapidly developing, but so are attack methods. Network worms are one of the most widely used attack methods and have are able to propagate quickly. As an active defense approach to network worms, the honeynet technique has long been limited by the closed architecture of traditional network devices. In this paper, we propose a closed loop defense system of worms based on a Software-Defined Networking (SDN) technology, called Worm-Hunter. The flexibility of SDN in network building is introduced to structure the network infrastructures of Worm-Hunter. By using well-designed flow tables, Worm-Hunter is able to easily deploy different honeynet systems with different network structures and dynamically. When anomalous traffic is detected by the analyzer in Worm-Hunter, it can be redirected into the honeynet and then safely analyzed. Throughout the process, attackers will not be aware that they are caught, and all of the attack behavior is recorded in the system for further analysis. Finally, we verify the system via experiments. The experiments show that Worm-Hunter is able to build multiple honeynet systems on one physical platform. Meanwhile, all of the honeynet systems with the same topology operate without interference.

Color Changes and Optimization of Orgsnoleptic Properties of Roasted Polygonatum odoratum Tea (둥굴레의 볶음처리에 따른 차의 색도 변화와 관능적 특성의 최적화)

  • 류기철;정형욱;이기동;권중호
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.5
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    • pp.831-837
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    • 1997
  • Response surface methodology(RSM) was applied in roasting processes of Polygonatum odoratum roots in order to monitor Hunter color parameters and to optimize organoleptic properties of the tea. In roasting processing based on the central composite design with variations in roasting temperature (110~19$0^{\circ}C$) and roasting time(15~75min), coefficients of determinations($R^{2}$) of the models were above 0.9827(p<0.01) in Hunter color parameters and above 0.7748 in organoleptic properties. Hunter color L and $\Delta$E values of the powdered samples decreased with the roasting processes, whereas Hunter color a and b values increased up to around 59 min at 136$^{\circ}C$ and thereafter showed a decreased tendency. Organoleptic qualities on color, taste and aroma of Polygonatum odoratum tea were improved along with roasting processes, thereby estimating the optimum roasting conditions by RSM for the maximized qualities of organoleptic properties as a range from 127$^{\circ}C$ to 135$^{\circ}C$ and from 60min to 66 min. Hunter color a value(redness) was found to generate a similar response surface to that of organoleptic properties, showing the possibility of quality index in roasting processes of Polygonatum odoratum roots.

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A Case Report of Hunter Syndrome (Hunter 증후군 환아 증례 1례 보고)

  • Kim, Yoon-Young;Seo, Young-Min;Kim, Jang-Hyun
    • The Journal of Dong Guk Oriental Medicine
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    • v.10
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    • pp.77-85
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    • 2008
  • Objective : The purpose of this study is to report a case that has an important meaning as a result of treating Hunter syndrome patient with oriental medicine for elevation of quality of life and continuous health care. Methods : The patient complained of abdominal dropsy, abdominal pain, constipation, frequent gases and the common cold. So we treated him with herbal medicine, acupuncture, infra red, laser, CEP nebulizer, aroma massage and cupping. Results : After treatment, the girth of abdomen didn't increse any more and abdominal pain, constipation, frequent gases and common cold were improved. Conclusion : This study shows that oriental medicine can elevate the Hunter syndrome patient's quality of life with continuous heath care and treatment for chief complaint. The further study is needed with more cases.

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Analysis of Oxy- and Metmyoglobin in Beef Chuck by Absorption Spectrophotometer and Hunter-Lab (Hunter-Lab와 분광광도계(分光光度計)에 의한 쇠고기의 Oxy-와 Metmyoglobin의 분석(分析))

  • Yeo, Young Keun;Park, Choon Ran
    • Current Research on Agriculture and Life Sciences
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    • v.1
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    • pp.165-167
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    • 1983
  • Oxy - and metmyoglobin concentrations in beef chuck were measured by Hunter-Lab and spectrophotometer. The values of oxymyoglobin by Hunter-Lab got 34.03, 10.40, and 6.50 as average in L, a, and b while the CIE color primaries were 13.33, 11.58, and 9.94 in X, Y, and Z, respectively. The metmyoglobin values recorded 39.10, 13.20, and 10.13 in L, a, and b, of which values were converted to 17.88, 15.29, and 11.40 in X, Y, and Z of the CIE primaries. Absorption spectrum of oxymyoglobin showed 2 peaks which were 0.79 and 0.83 pf extinction coefficient with 530 and 570nm in wavelengh, and that of metmyoglobin appeared on an irregular curve with a summit of 0.58 and 500 in extinction coeffcient ($cm^2$/mg) and wavelength(nm) each.

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Monitoring on Extraction Conditions of Old Pumpkin Using Response Surface Methodology (반응표면분석법에 의한 늙은 호박 추출조건의 모니터링)

  • 정용진
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.3
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    • pp.466-470
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    • 2001
  • Response surface methodology was used for monitoring extraction conditions, based on quality properties of old pumpkin extracts. Hunter's color L value of extracts was maximized at 101℃, 2.6 hr and decreased gradually after maximum point. The polynomial equation for Hunter's color L value showed 10% of significance level and 0.8799 of R². Hunter's color a value was minimized at 117℃, 3.9 hr and R² of polynomial equation was 0.9852 within 1% significance level. Hunter's color b value and ΔE value increased as the extracting temperature and time increased. Extraction yield of old pumpkin was maximized at 110℃, 4 hr and increased in proportional to the extracting temperature and time, but decreased after 113℃ and 2 hr. Viscosity of pumpkin extracts were maximized at 120℃, nearly 3 hr. R² of polynomial equations for yield, viscosity and sugar content were 0.9532, 0.9812 and 0.8869, respectively. Optimum ranges of extraction conditions for quality properties of old pumpkin were 102∼109℃, 2.5∼3.5 hr, respectively. Predicted values at the optimum extraction condition agreed with experimental values.

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