• Korean journal of food and cookery science
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• v.24 no.4
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• pp.480-486
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• 2008

In this study, Yukwa(YU-G) was prepared by coating in syrup with water-soluble extracts of Gugija(Lycii fructus). The Yukwa samples were stored with PE film packing with air for 12 weeks at room temperature, after which the quality and shelf-life of the Yukwa were assessed. During storage, the moisture contents of YU-G were higher than those of the Yukwa due to being coated in syrup without water-soluble extracts of Gugija(YU-NG), whereas the instrumental textural hardness values of the YU-G were lower than those of the YU-NG. Color determination indicated that YU-NG and YU-G assumed a darker color after storage, becoming both redder and yellower. The peroxide and acid values increased abruptly in the YU-NG during storage, but increased slowly in the YU-G. During the 12 weeks of storage after preparation, the peroxide and acid values of YU-G remained at less than 40 meq/kg and 4 KOH mg/g, respectively. Thus, the experimental method of syrup coating with water-soluble extracts of Gugija rendered the YU-G fairly stable against fat rancidity. The YU-G evidenced generally higher overall acceptability than YU-NG when stored.

• Toxicological Research
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• v.16 no.4
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• pp.293-301
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• 2000

Toxicity of a combined preparation of ticlopidine and ginkgo biloba extract (EGb 761) in a ratio of 10: 4 was examined in male and female Sprague-Dawley rats. Rats were treated with the test substance intragastrically at a dose of 0 mg/kg, 17 mg/kg, 52 mg/kg or 156 mg/kg for 91 consecutive days. No death or abnormal clinical sign was observed throughout the administration period. There was no difference in body weight gain, food intake or water consumption among different dose groups. Test sub-stance-related differences were not observed in urinalysis. In hematological results mean corpuscular hemoglobin (MCH) of low and high dose male group was increased. Prothrombin time of medium and high dose female group was decreased. A significant increase in serum total cholesterol was observed in both sexes of rats treated with a daily dose of 156 mg/kg, but all the other values obtained in serum chemistry appeared to be within normal ranges. A dose dependent increase in the relative liver and kidney weights was observed in both male and female rats. There were no gross pathological findings at terminal sacrifice. Microscopic histopathological examination did not show any lesion associated with administration of the test substance. The results suggest that under the conditions employed in this study no observable effect level (NOEL) of the test substance be greater than 17 mg/kg/day, but less than 52 mg/kg/day.

• Korean Journal of Acupuncture
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• v.24 no.2
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• pp.19-43
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• 2007

Objectives : The aim of this study was to analyse the symptoms of a disease and to elucidate the meaning and rationale of point selection in YuLongFu. Methods : We translated YuLongFu into Korean and analyzed symptoms based upon a comparison of YuLongFu with YuLongGe. The meaning and rationale of point selection in YuLongFu was then inferred from the analysis above. Results and Conclusions : Total 84 acupoints were used in YuLongFu. Moxibustion and pricking blood therapy were used twice. Generally, threre are a lot of diseases caused by stagnation of Qi and blood in YuLongFu. Point selection, therefore, was usually aimed at promoting flow of Qi and blood.

• Korean Journal of Plant Resources
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• v.1 no.1
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• pp.72-79
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• 1988

This experiment was conducted to breed the Boxthorn varieties with resistance to Anthracnose, good quality and high yielding potential in 1984 to 1986(3 years).The character of "Yu seong 1" with resistance to Anthracnose and "Yu seong 2"with good quality and high yielding potential are fellows;1, The plant type of "Yu seong 1" was semi-elect type but became to electtype after 60C" rediation and yield was decreased because of the number of flowers.2. The yield of "Yu seong 2" was the highest of all varieties.3. The quality(Extract and Betain contents) of "Yu seong 2" was the best ofall varieties and visible character was good.The results of this experinent showed that "Yu seong 1" should be promisinglines in south area because of resistance Anthracnose and "Yu seong 2" should bepromising lines in north area.hracnose and "Yu seong 2" should bepromising lines in north area.orth area.

• Korean Journal of Acupuncture
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• v.23 no.3
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• pp.1-15
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• 2006

Objectives : The aim of this study was to analyze the symptoms of a disease and to elucidate the meaning and rationale of point selection in YuLongFu. Methods : We translated YuLongFu into Korean and analyzed symptoms based upon a comparison of YuLongFu with YuLongGe. The meaning and rationale of point selection in YuLongFu was then inferred from the analysis above. Results and Conclusions : Total 46 points (6 points were repeated) were used in YuLongFu. These points included the collateral Meridian, the four seas, five shu points, lower confluent points, yuan points and eight influential points. Moxibustion and pricking blood therapy were used twice. Generally, threre are a lot of diseases caused by stagnation of Qi and blood in YuLongFu. Point selection, therefore, was usually aimed at promoting flow of Qi and blood.

• Korean Journal of Pharmacognosy
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• v.3 no.4
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• pp.217-225
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• 1972

Mt. Deok-Yu is situated on the border of Chun-Buk and Kyung-Nam Do, Korea. The peak of Dae Deok-yu (1608m) and Nam Deok-Yu (1508m) is the highest of Mt. Deok-yu range and it has many other high peaks. The plant of Mt. Deok-yu were collected from May 1964 to August 1972. The natural and cultivated medicinal plants include 98 families, 213 genera, 305 species, 53 varietes, 3 formas and 360 kinds.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.2
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• pp.308-318
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• 2009

This study makes clear Huang Yuan-Yu(黃元御)'s medical thoughts Yi-philosophically. Yi-philosophy(易學) since ancient times is occupied by fundamental problems of various fields of Oriental Science. Confusian Medicine Reseachers of Zhang Jie-Bin(張介賓), Zhang Nan(章楠), Zhu Zhen-Heng(朱震亨) was seriously affected by Yi-philosophy(易學) and Confucianism(儒學). But I don't think that the majority of their medicine theories are occupied by Yi-philosophy(易學) and Confucianism(儒學). But Huang Yuan-Yu(黃元御) studied medicine thoughts on the basis of Tu Shu Yi(圖書易) in almost whole medicine theories and clinical contents. Therefore this study researched medical thinkings of Huang Yuan-Yu(黃元御) on Yi-philosophical medical viewpoint Tu Shu Yi(圖書易)-scientifically. Especially in this paper the author examined a characteristic point in medical thoughts of Huang Yuan-Yu(黃元御), the difference of existing medicine on Nei-Jing(內經) and Yi-medicine of Huang Yuan-Yu(黃元御), a commonness of medicine principles of Huang Yuan-Yu(黃元御) and Li Ji-Ma(李濟馬)), medicine theories of Huang Yuan-Yu(黃元御) on Tu Shu Yi(圖書易) and a background of Yi-philosophical medical standpoint. The results was summarized as follows; First, Huang Yuan-Yu(黃元御)'s standpoint on five phase is that the relation of earth and wood fire metal water is form and use(體用). Huang Yuan-Yu(黃元御) insists that the earth represents existence itself and wood fire metal water is concepts that represents actual states. Second, the concept of Four-Constitution of Huang Yuan-Yu(黃元御) and Li Ji-Ma(李濟馬) is same. Third, Huang Yuan-Yu(黃元御) doesn't have a standpoint of five-phase on Nei-Ching Medicine, but a standpoint of five-phase on Yi-philosophy. Fourth, water, fire, metal, wood is Four-Constitution that middle qi transformed. Fifth, the middle qi is yang-earth and yin-earth of the spleen and stomach, the physiological function of four viscera is maintained by the movement of ascending and descending of yin and yang earth. Sixth, The middle qi is main role of Four-Constitution. Exchanging of water and fire and the movement of ascending and descending of metal and wood depends on the earth. Seventh, generally medicine researchers speak that human mind is a main role of psycho-function of heart, but Huang Yuan-Yu has the standpoint of spleen-stomach oriented seven emotions not human-mind oriented viewpoint. It represents that a existing thinking of heart-earth center is changed to medical viewpoint of spleen-earth center. Eighth, There is enough ground for controversy on where is the middle point of human in five viscera. Is that spleen or heart? Huang Yuan-Yu(黃元御) insists that the spleen and stomach is middle point, but the standpoint in Four-Constitution medicine of Li Ji-Ma(李濟馬) is that middle point is heart.

• 한국생물공학회:학술대회논문집
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• 2003.04a
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• pp.644-644
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• 2003

• Korean Journal of Food Science and Technology
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• v.29 no.1
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• pp.138-144
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• 1997

A new biopolymer YU-122 from Metarrhizium anisopliae (Metschn.) Sorok consisting of glucose and galactose was tested for its physical properties and flow behavior characteristics. Xanthan gum showed slightly higher viscosity than biopolymer YU-122. Viscosity of biopolymer YU-122 at various pHs and temperatures was also tested. The viscosity of biopolymer YU-122 was very stable up to pH 11 and $60^{\circ}C$, indicating that it has a great possibility for the application such as food additives, emulsifier, and drug release agents. Flow behavior index (n) from Power Law equation is 0.173. Biopolymer YU-122 solution was a pseudoplastic non-Newtonian fluid, which indicated that it had one or more side chains. When biopolymer YU-122 was used as a emulsifier, it stabilized the emulsion up to 120 hours, which was much better than xanthan gum. The biopolymer YU-122 could form an excellent but less clear film compared with xanthan and pullulan.

• Journal of The Korean Association For Science Education
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• v.44 no.1
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• pp.131-140
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• 2024

In this study, the scientific description of Earth was analyzed by targeting the item titled '1. Introduction to the Earth World', which is part of the 'first section' of SeoYuGyeonMun(西遊見聞) written by Yu Giljun(俞吉濬). This part served as an introduction to the entirety of SeoYuGyeonMun. It was also one of the earliest documents in Korean literature to mention 'the earth as a celestial body', rather than solely focusing on it as land which was a departure from traditional thinking. Yu Giljun made deliberate efforts to translate the concept of Earth's rotation into "Jashinjeon(自身轉)" and Neptune as "Haeryongseong(海龍星)". He included the latest scientific debates and facts in SeoYuGyeonMun, such as the theories of Western scholars explaining the types of seismic waves and discussions at international conferences related to the establishment of the original meridian. Yu Giljun, who was not a science major, would have used HunMongGungRiDoHae(訓蒙窮理図解, 1868) written by Fukuzawa(福澤諭吉) and GeokmulJiji(格物地誌, 1876) which was translated by Matsumoto(松本駒次郎) as references to describe scientific descriptions. The contents described in 'Introduction to the Earth World' cover the foundational composition and subject matter that are typically found in modern-day Earth science textbooks.