• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.107-107
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• 2018

양파는 백합과에 속하는 여러해살이풀로 서남아시아의 페르시아가 원산인데 세계 각국의 온대지방에서 많이 재배하고 있다. 양파의 생약명은 옥총(玉憁)으로 피 속의 콜레스테롤을 떨어뜨리고 심장혈관의 혈류량을 증가시켜 성인병 예방에 좋다. 철원지역은 내륙지방이면서도 고도가 높아 기온차가 큰 대륙성 기후의 성격이 강하기 때문에 이 지역에서 재배한 양파는 남부지방에서 재배된 양파보다 당도가 높고 맛도 좋다고 알려져 있다. 인산질 성분은 특히 근의 발육을 촉진시키는 중요한 성분이다. 하지만 토양부의 인산성분이 수확 시까지 다량 지속되면 양분의 경합으로 뿌리부의 부패를 초래하기 쉽다. 따라서 수확기에 환원형 인산질을 중심으로 엽면시비 방법으로 영양균형을 유도하여 양파의 품질과 저장성을 향상시키는 것이 중요하다. 본 연구는 아인산(H3PO3)과 수산화칼륨(KOH)을 희석하여 산도조절 후, 아인산염으로 철원양파에 엽면 처리한 후 성분을 비교분석하였다. 본 연구에서 아인산염의 농도를 500, 1000, 1500배 희석하여 철원양파에 2018년 5월에 분무기를 이용하여 3회 엽면살포 한 후 6월 말경 수확한 후 HPLC를 이용하여 페놀화합물을 분석하였다. 그 결과 양파에서 중요한 물질 중의 하나인 큐에르세틴(quercetin)함량은 대조구(96.39 ug/g)에 비해 500배(179.70 ug/g), 1000배(150.27 ug/g), 1500배(105.95 ug/g) 처리구에서 높은 함량을 보였다. 또한 caffeic acid, p-coumaric acid, ferulic acid, rutin, kaempferol, 당도 함량은 처리구에서 대조구보다 높은 함량을 보였다. 따라서 아인산염 처리는 철원양파에서 페놀화합물의 함량을 높이는데 중요한 역할을 한다는 것을 알 수 있었다. 본 연구를 통하여 아인산염과 같은 환원형 엽면시비법을 이용하여 재배한다면 고품질의 기능성 양파를 생산할 수 있을 것이라 생각한다.

• Journal of the Korean Institute of Telematics and Electronics C
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• v.36C no.12
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• pp.20-26
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• 1999

A CMOS 6-bit 100MSPS ADC for DBS receiver is designed. The proposed ADC is composed of folding block, latch block, and digital block. The cascode interpolating block and kickback reduced latch are proposed with a high speed architecture. To verify the performance of ADC, simulations are carried out by HSPICE. The ADC achieves a clock frequency of 100MHz with a power dissipation of 40mW for 3 V supply voltage. The active chip area is $1500{\mu}m{\times}1000{\mu}m$with $0.65{\mu}m$ 2-poly 2-metal CMOS process. Further, INL and DNL are within ${\pm}0.6LSB$, ${\pm}0.5LSB$, respectively. SNDR is about 33dB at 10MHz input frequency.

• The Journal of Korean Physical Therapy
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• v.14 no.1
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• pp.99-108
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• 2002

The purpose of this study was to research the clinical of cerebral palsy taking physical therapy at the department of physical therapy of various clinics at Kyungnam${\cdot}$Pusan. Among the subjects that was born from January, 1985 to June, 2000, 226 parents was answered to questionary of this study. The results of the study were as follows: 1) During the embryonic period, the cerebral palsied children above 37weeks were 114 subjects(50.9%) and there was 51 subjects(22.8%) between 28weeks to 31weeks and 32weeks to 36weeks. The children below 28weeks were 8 subjects(3.6%) and showed the lowest rate. As compared to the delievery methods, the normal delievery, cesserian section delievery, and forceps delievery was 124 subjects(55.1%), 81(36.0%), 16(7.1%), nad 4(1.8%). Among them the mormal delievery indicated the highest percentage. 2) Compared to the weight during birth time, the above 2500g of 121 subjects(55.3%) showed the highest rate and the 28 subjects(12.8%) had the birth weight of 1000to 1499g. There was 4 subjects(1.8%) below the 1000g. 3) Compared to the birth weight of the pregnancy period, the weight of the cerebral palsied children below 28weeks were 1000g to 1499g and showed the highest rate of 4 subjects(50%). The children between 28weeks to 31weeks and 32weeks to 36weeks were 1500 to 2499g, each 23(47.9%), and 28(54.9%) subject. The weight of the children of the above 37weeks were above 2500g and 94 subjects(87.4%). Therefore, if the period of pregnancy is short, the weight birth would indicate the lower weight than the weight of the other times(p<0.05). 4) The spastic type of the pregnant period had the highest rate and the period was the below 28weeks to 31weeks. The cerebral palsied children of athetoid and mixed type were 6 subjects(13.3%) and 5 subjects(31.9%) between 28 and 31weeks. The mixed type of them was each 15 (31.9%) and 33 (30.6%) subjects between 32 to 36 weeks and the above 37weeks. The mixed type showed a slightly high rate (p<0.05). 5) The spastic type indicated the highest rate in the weight of birth time and especially showed the high rate in the case of 1000 to 1499g. The mixed type indicated a slightly high rate of 17 subjects (25.8%) and 32 subjects (29.1%) in case of 1500 to 2499g and the above 2500g (p<0.05).

• Journal of Nutrition and Health
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• v.39 no.4
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• pp.417-425
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• 2006

The purpose of this study were to a) investigate operation of human resource in contract foodservice management company (CFMC), b) identify the staffing indices for the establishment an labor productivity for CFMC, and c) develop standardized model of staffing demand as foodservice's scale in CFMC. The data was collected using FS intra-net system from 138 contract-managed foodservice operations in A CFMC and statistical analysis was completed using the SAS/win package (ver. 8.0) for description analysis, ANOVA, Duncan multiple comparison, pearson correlation analysis, and regression analysis. The types of operation were included factory (45%), small scale operation (26%), office (11%), department store (10%), training institute (4%), and hospital (3%). The distribution of foodservice scale was classified by meal served was as follows; 'less than 500 meals (47%)', 'from 500 to 1500 meals (25%)', 'from 1500 to 2500 meals (17%)', and 'more than 2500 meals (12%)'. There was two types of contract method, fee-contract (53%) and profit-and-loss contract (46%) Some variables were significantly high operation indices such as selling price, food cost, monthly sales, net profit and others were significantly low operation indices such as labor, meal time a day in the small foodservice on meal scale (p<.001). The more foodservice was large, the more human resource was disposed on dietitian, cook, cooking employee altogether (p<.001). Foodservice in A CFMC was divided into 2 groups by 500 meals a day, according to comparative analysis of labor productivity as meal scale per working hour, meal scale a day and operation indices as meal per foodservice employee, meal per cooking employee (p<.001). The regression equation model was developed as 'the number of employees=1.82+0.014 ${\times}$ meal served' in the operation of less than 500 meals, 'the number of employees=9.42+0.013 ${\times}$ meal scale a day -0.94 ${\times}$ meal scale per working hour' in the operation over 500 meal scale using labor productivity indices and operation indices. Therefore, CFMC could be enhanced efficiency of human resource arrangement using the standardized model of staffing demand and would be increased effectiveness of profit.

• Korean Journal of Plant Resources
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• v.26 no.1
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• pp.19-25
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• 2013

This study focused on the usefulness of plant extracts for a city organic farm. Insecticidal activity of 8 plant species, plants crude extracts by ethanol and water, against third instar larvae (susceptible strain) of Plutella xylostella was evaluated in this study. Ethanol(25%) extracts of plant materials had better insecticidal activity than water extracts at the room temperature. Insecticidal activity were investigated by leaf disc spray method. Five plant extracts (Capsicum annuum, Chelidoniun majus, Leonurus sibiricus, Coptis japonica, Mentha piperascens) showed over 50% insecticidal activity to P. xylostella at the concentration of $1500mg{\cdot}L^{-1}$. Extract of C. annuum showed the highest insecticidal activity (83.3%) against P. xylostella. Phytotoxicity was not observed on Raphanus sativus and Brassica campestris with spray application. Seed germination and growth of two plants were not affected. Extract of C. japonica revealed 73.3% control efficacy against P. xylostella of R. sativus and showed 70% control efficacy against those of B. campestris, respectively, in plastic house. Insecticidal activity against various insects was observed in C. japonica extract as 87.4% for R. sativus and 74.3% for B. campestris in the field. These results suggested that extracts of C. annuum, C. japonica showed the highest insecticidal activity, and could be used as city farm insecticides for organic farming.

• Journal of Preventive Medicine and Public Health
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• v.40 no.2
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• pp.155-161
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• 2007

Objectives : Bisphenol A diglycidyl ether (BADGE) is the major component in commercial liquid epoxy resins, which are manufactured by co-reacting bisphenol A with epichlorohydrin. This study was performed to show the developmental effects of prenatal and postnatal exposures to BADGE in male rat offspring. Methods : Mated female rats were divided into four groups, each containing 12 rats. The dosing solutions were prepared by thoroughly mixing BADGE in corn oil at the 0, 375, 1500 and 3000 mg/kg/day concentrations. Mated females were dosed once daily by oral gavage on gestation day (GD) 6 - 20 and postnatal day (PND) 0 - 21. Pregnant female dams were observed general symptoms and body weight. Also, male pups were observed the general symptoms, body weight, developmental parameters (e.g. anogenital distance, pina detachment, incisor eruption, nipple retention, eye opening, testis descent), organ pathologic changes and hormone levels of plasma. Results : Pregnant rats treated with BADGE died at a rate of about 70% in the 1500 mg/kg/day group and all rats treated with 3000 mg/kg/day died. Body weight, for male pups treated with doses of 375 mg/kg/day, was significantly lower than in the control group at PND 42, 56, and 63 (p<0.05). Evaluation of body characteristics including; separation of auricle, eruption of incisor, separation of eyelid, nipple retention, descent of testis, and separation of the prepuce in the BADGE treated group showed no difference in comparisons with the control group. AGD and adjusted AGD (mm/kg) for general developmental items in BADGE 375 mg/kg/day treated pups tended to be longer than in controls, however, these differences were not statistically significant. Relative weights of adrenal gland, lung (p<0.05), brain, epididymis, prostate, and testis (p<0.01) were heavier than in control in measures at PND 9 weeks. There were no significant changes in comparisons of histological findings of these organs. Loss of spermatids was observed in the seminiferous tubule at PND 9 weeks, but no weight changes were observed. The plasma estrogen levels were similar in the control and treatment groups at PND 3, 6 and 9 weeks. The plasma testosterone levels in the control group tended to increase with age. However, in the BADGE 375 mg/kg/day treated male pups it did not tend to increase. Conclusions : These findings suggest that BADGE is a chemical that has developmental effects consistent with it being an endocrine disruptor.

• Korean Journal of Cognitive Science
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• v.28 no.1
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• pp.1-26
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• 2017

This study investigated the cortical generators of P300 in college students with schizotypal traits by using an auditory oddball paradigm, event-related potentials (ERPs) and standardized low resolution brain electromagnetic tomography (sLORETA) model. We also investigated the relationship between the current density of P300 and the clinical symptoms of schizophrenia. Based on the scores of Schizotypal Personality Questionnaire(SPQ), schizotypal trait (n=37) and control (n=42) groups were selected. For the measurement of P300, an auditory oddball paradigm, in which frequent standard tones (1000Hz) and rare target tones (1500Hz) were presented randomly, was used. Participants were required to count the number of the target tones during the task and report this at the end of the experiment. The two groups did not differ significantly in the accuracy of the oddball task. The schizotypal trait group showed significantly smaller P300 amplitudes than control group. In terms of source localization, both groups showed the P300 current density over bilateral frontal, parietal, temporal and occipital lobes. However, the schizotypal trait group showed significantly reduced activations in the left superior temporal gyrus and the right middle temporal gyrus, but increased activations in both left inferior frontal gyrus and right superior frontal gyrus compared to the control group. Furthermore, a negative correlation between the current density of the right superior frontal gyrus and SPQ disorganization score was found in the schizotypal trait group. These findings indicate that the individuals with schizotypal traits have dysfunctions of frontal and temporal areas, which are known to be the source of P300, as observed in patients with schizophrenia. In addition, the present results indicate that the disorganization score, rather than total score, of the SPQ is useful in predicting the risk of future schizophrenia.

• Proceedings of the KIEE Conference
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• 1995.07c
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• pp.1126-1128
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• 1995

In order to investigate the electrical properties for transformer oils due to electron bean irradition, the dielectric properties was made researches by dose of irradition To measure the dielectric loss of irradiated specimen, coaxial cylindrical liquid electrode was used, geometric capacitance was confirmed to 16[pF]. Experiments for measuring the dielectric loss were performed at $20{\sim}120[^{\circ}C]$ in temperature range, $30{\sim}1.5{\times}10^5$[Hz] in frequency range and $300{\sim}1500$[mV] in voltage range and then, the result of experiment for the movement of carrier and the physical constants to contribute dielectric properties of specimen due to electron beam irradiation introduced.

• Proceedings of the KSAR Conference
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• 2004.06a
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• pp.265-265
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• 2004

한우번식우 사육농가와 사육규모가 확대와 소 값 상승으로 인하며 인공수정 및 수정란 이식에 대한 수태율 향상에 많은 관심이 집중되고 있다. 이러한 수태율 향상을 위하여 한우 암소에 배란동기화 처리 후 인공수정 시 황체기능 강화제인 등을 투여하여 황체기능을 강화시키고, 투여시기에 따라 개체에 대한 신체충실지수(BCS)와 혈중요소태질소화합물(BUN)을 분석하였으며, 또한 투여시기에 따른 혈중 Progesteroner의 변화를 조사하였다. 황체기능강화제의 투여 방법은 HCG 투여구는 배란동기화 처리 후 6일째와 7일째에 각각 1500 IU와 3000 IU를 투여하였고, 투여 후 14일째에 혈액을 채취하여 혈중 P4 분석하였다. (중략)

• Journal of Powder Materials
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• v.11 no.6 s.47
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• pp.467-471
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• 2004

In order to fabricate a high density sintered body of ITO, nano-sized ITO powders were synthesized by coprecipitation methods. Aqueous solutions of indium and tin salts were mixed and coprecipitated by changing their pH. Coprecipitated ITO powders possessed 20-30 nm crystallite size and a relatively high BET value ($35m^2/g$), however, aggregation of particles were occurred. Therefore, a novel recrystallization technique was applied in order to eliminate the aggregates. The recrystallized ITO material consists of a little bit larger needlelike crystals, $20nm{\times}80nm$, and it possesses a higher BET value $(57m^{2}/g)$ compared to the plain coprecipitated material $(35m^{2}/g)$. Metastable phase formation and higher content of aggregated particles were observed in the coprecipitated materials. Densification was 95% to 98% complete after 5 hour sintering at $1500^{\circ}C$ for the recrystallized powders while densities of the coprecipitated powders were below 75%.