• Journal of the Korean Society of Food Culture
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• v.13 no.5
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• pp.509-518
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• 1998

The purpose of this study was to develop korean traditional gruel 'Hodojook' as a easy-to cook product by modifying cooking method and its concentrations. Physical and sensory properties of 'Hodojook' with various levels of concentration were investigated using viskograph and sensory evaluation panel. The result showed that hydrated rice flour has higher maximum viscosity than instantly ground rice. Addition of walnut lowered maximum viscosity and gelatinization beginning temperature. But gelatinization pattern was not affected by the level of walnut and modified cooking method. Sensory characteristics on the roasted odor, roasted taste, oily odor, oily taste and viscosity were significantly increased as the walnut levels are increased. 'Hodojook' of' with the 1:1:6 ratio (rice flour walnut : water) was recommended.

• The Journal of Internal Korean Medicine
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• v.21 no.2
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• pp.235-241
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• 2000

호도(胡桃)(Juglandis semen)가 치매에 미치는 영향을 알아보기 위하여 치매(Alzheimer's disease) 유발물질로 알려진 amyloid-{$\beta}(A{\beta})$ 25-35를 흰쥐의 뇌 신경세포의 일종인 astrocyte에 처리한 후 뇌의 신경세포에 대한 독성 및 세포막에서의 지질 과산화에 미치는 영향을 검토하였다. 호도(胡桃)는 $A{\beta})$ 25-35로 인한 신경세포의 파괴를 억제하는 것으로 나타나 신경세포의 손상을 예방하고 보호하는 효과가 있었다. 그리고, 지질의 과산화 지표인 malondialdehyde 생성은 $A{\beta})$ 25-35 처리로 크게 증가하였으나, 호도(胡桃)의 전처리와 후처리로 크게 감소되어 호도(胡桃)가 세포막 파괴로 인한 뇌세포의 손상을 방지하는 것으로 나타났다. 이러한 결과들을 볼 때, 호도(胡桃)는 신경세포의 하나인 astrocyte에 대한 보호효과와 세포막에서 지질의 과산화를 저해 및 $A{\beta})$ 25-35 처리와 같은 치매 유발 독성에 대한 적응능력 향상을 통하여 뇌 신경세포를 보호하는 효과가 있음을 보여주는 것으로 노인성 치매 등의 임상적 응용에 그 효과가 기대된다.

• The KIPS Transactions:PartA
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• v.10A no.4
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• pp.381-388
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• 2003

Location tracking is used to keep track of the location information of a mobile terminal in an idle state for a cail setup between mobile terminals. In this paper, we introduce a location update algorithm based on the call arrival history, which is appropriate for a variable call arrival rate over time. The location tracking strategy which uses the proposed algorithm can find changes in the call arrival rate by maintaining a call arrival history of a mobile terminal, from which a mobile terminal can calculate an appropriate timeout interval for a variable call arrival rate. We show that the proposed scheme is appropriate for a variable call arrival rate by presenting a simple analytical model and analytical results to investigate its performance for both a fixed and a variable call arrival rate.

• KSBB Journal
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• v.8 no.1
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• pp.49-54
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• 1993

The contents of odd number fatty acid in walnut, peach seed and apricot seed were analyzed by HPLC. The results were as follows; the contents of crude oil in walnut, peach seed and apricot seed were 61.7%, 48.21%, and 52.34%, respectively. The contents of neutral lipid in walnut peach seed, and apricot seed were contained 62.32%, 91.50%, and 88.00%, respectively. The contents of glycolipid in walnut peach seed and apricot seed were contained 34.14%, 3.25%, and 4.78%, respectively. The contents of phospholipid in walnut peach seed and apricot seed were contained 3.54%, 5.25%, and 7.27%, respectively. The contents of odd number fatty acid and even number fatty acid in neutralipid were walnut 37.07% and 36.72%, peach seed 5.4% and 94.60%, and apricot seed 6.85% and 93.92%, respectively. The contents of odd number fatty acid and even number fatty acid in glycolipid were walnut 5.37% and 46.21%, peach seed 6.97% and 89.42%, and apricot seed 10.50% and 89.42%, respectively. The contents of odd number fatty acid and even number fatty acid in phospholipld were walnut 3.57% and 96.43%, peach speed 6.51% and 93.49%, and apricot seed 15.00% and 84.20%, respectively. The contents of odd number fatty and even number fatty acid in total fatty acid were walnut 14.47% and 85.53%, peach seed 1.17% and 98.83%, and apricot seed 4.3% and 95.97%, respectively.

• Journal of the Korea Computer Graphics Society
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• v.7 no.1
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• pp.19-25
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• 2001

In this paper, we study the special geometric reparametization of the (plane polynomial) Pythagorean Hodograph curves in the view point of their roots. The PH curves are completely determined by the roots of their hodographs. we show that the loci of roots of the PH curves satisfy some interesting geometric properties.

• The Journal of Dong Guk Oriental Medicine
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• v.6 no.1
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• pp.163-176
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• 1997

This study was undertaken to determine whether Juglandis Semen extraction(JS) has a protective effect against the lung cell injury caused by oxidant, t-butythydroperoxide(t-BHP) and $H_2O_2$ in rabbit lung slices. JS significantly prevented an increase in water content induced by t-BHP. Similarly, JS significantly prevented the lipid peroxidation induced by t-BHP. Cellular concentration of glutathione, and the activities of catalase and superoxide dismutase were significantly not altered by 5% JS. However, JS at 5% concentration significantly increased the glutathione peroxidase activity in oxidant-treated and control tissues. JS decreased directly the production of superoxide or hydroxyl radical. These results indicate that JS prevents the cell injury and lipid peroxidation induced by oxidants in the lung. Such an antioxidant effect is attributed to enhancement of major endogenous antioxidant defence systems such as glutathione peroxidase and direct inhibition of oxygen free radical production.

• Korean Journal of Agricultural Science
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• v.26 no.1
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• pp.39-49
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• 1999

Curd yoghurts were manufactured by addition of chestnuts and walnuts which were special agricultural products in Chungnam area. The nut powders were added to the yoghurts in the given concentration of 1~4%. The yoghurts after 12 hours fermentation were examined for pH, acidity, cell counts of lactic acid bacteria, viscosity, chemical composition and sensory test and preservation of yoghurts. The results obtained were summarized as follows; 1. The chestnut powder decreased pH, whereas increased acidity in yoghurts, however, the walnut powder did not change significantly for pH and acidity in yoghurts. 2. The cell counts of lactic acid bacteria was higher for 2% chestnut powder yoghurt ($2.6{\times}10^9/ml$) than 2% walnut powder yoghurt ($1.7{\times}10^9/ml$) and control yoghurt. 3. The viscosity of yoghurt was higher for 4% chestnut powder yoghurt (3,225 centipoise) than control (1,638 centipoise) and 4% walnut powder yoghurt (2,010 centipoise). 4. The protein content of yoghurts were 3.99% for both 2% chestnut powder and 2% walnut powder yoghurts, and solid-non-fat contents of yoghurt were 15.10% for chestnut powder yoghurt and 13.65% walnut powder yoghurt. 5. The scores of sensory tests were higher in chestnut powder yoghurt for tastes, odor and texture, and in walnut powder yoghurt for tastes, odor and texture compared to control yoghurt. 6. When yoghurts were stored at $5^{\circ}C$ for 14 days for preservation test, the acidity and number of lactic acid bacteria were not changed significantly.

• Journal of the Korean Society of Food Science and Nutrition
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• v.13 no.3
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• pp.263-267
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• 1984

The present study was conducted to elucidate the triglyceride composition of walnut oil. The triglycerides were separated by thin layer chromatography (TLC) and fractionated on the basis of partition numbers by reverse phase high performance liquid chromatography (HPLC) on a column packed with $\mu$-bondapak $C_{18}$ using methanol-chloroform mixture as a solvent system. Each of these collected fractions was fractionated again on the basis of acyl carbon number of triglyceride by gas liquid chromatography (GLC). The fatty acid composition of triglycerides for each partition numbered group was also analyzed by GLC. From the results, it was found that walnut oil consists of ten kinds of triglycerides, and the patterns of major ones in walnut oil were as follows: 53.3% of $(C_{18:2},\;C_{18:2},\;C_{18:2})$, 10.1% of $(C_{18:1},\;C_{18:2},\;C_{18:2})$, 5.4% of $(C_{18:1},\;C_{18:1},\;C_{18:2})$, 4.3% of $(C_{18:1},\;C_{18:2},\;C_{18:3})$, 3.9% of $(C_{18:0},\;C_{18:2},\;C_{18:2})$, 2.0% of $(C_{18:0},\;C_{18:1},\;C_{18:2})$, 1.8% of $(C_{18:0},\;C_{18:2},\;C_{18:2})$.

• Korean Journal of Acupuncture
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• v.23 no.3
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• pp.123-131
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• 2006

목 적 : 과산화수소는 산화적 스트레스를 통해 아폽토시스를 유도하는 것으로 알려져 있다. 본 논문에서는 과산화수소로 유발된 신경아세포종 아폽토시스 과정에서 호도약침액의 효과를 관찰하였다. 방 법 : 과산화수소로 인한 신경아세포종의 아폽토시스에서 호도약침액의 효과를 알아보기 위해 배양 중인 신경아세포종에 과산화수소를 처리하고, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MIT)분석법, 4,6-diamidino-2-phenylindole (DAPI) 염색법, reverse transcription-polymerase chain reaction (RT-PCR), western blotting의 방법으로 확인하였다. 결 과 : 과산화수소로 인한 신경아세포종의 아폽토시스에서 호도약침액을 처리한 결과, 약침액을 처리한 세포의 생존이 약 30% 정도 증가하고, 핵 응축과 단편화를 막아주며, CASP3와 BAX단백질의 발현이 감소되었다. 결 론 : 이러한 결과로 호도약침액이 과산화수소로 인한 신경아세포종의 아폽토시스과정에서 보호효과를 나타내는 것으로 사료된다.

• Journal of Food Hygiene and Safety
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• v.14 no.4
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• pp.333-338
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• 1999

The lipid stability of walnut added with water extracts of Ganoderma lucidum, Camellia sinensis ana Lycii fructus was studied. The results are as follows：1. when the extracts were added to walnut, the lipid stability was improved. The antioxidative activities of water extract of Camellia sinensis and Lycii fructus were considerably higher than that of Ganoderma lucidum. The antioxidative activity was decreased in the rank order Lycii fructus>Camellia sinensis>Ganoderma lucidum. 2. This clearly suggests that water extract of Lycii fructus at 4$^{\circ}C$ Bx level can be used as an alternative natural antioxidant for the lipid stability of walnut.