• The Journal of Internal Korean Medicine
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• v.19 no.1
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• pp.301-317
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• 1998

A clinical analysis was carried out for 32 patients who were treated in Dept. of Dong-shin Oriental Medicine Hospital from 10st January to 16st May in 1998 and ruled out as dememtia. The results were summarized as follows. 1. In the distribution of sex, female was more than male. And the age of seventies(17 cases, 53.125%) was highest in the frequency of age. 2. In the distribution of having history of drinking and smoking were each 4 cases(12.5%) and 7 cases(21.875%). 3. In the distribution of seasons, the ratio of spring and winter were each 16 cases(50.0%), 15 cases(46.875%), that of summer and fall were comparatively low. 4. In the period from onset to admission, the period within a week had 20 cases(62.5%) as top, and the most period of treatment was 2 and 3 weeks(28.125%). 5. The number of cases that had preceding disease was 35 cases(71.875%), a major portion of preceding diseases were hypertension, diabetes mellitus, stroke. 6. The most common symptom was disorientation(78.125%), and the next common symptom was motor desability(71.875%), and memory disturbance, verbal disturbance was each 59.375 and 47.1%. 7. In the distribution of the CT scan films, 15 cases(46.875%) showed cerebral infarction and that of another 5cases (15.625%) showed cerebral hemorrhage, that of another 2 cases(6.25%) showed brain atrophy. 8. In the lipid density of blood, T-Cholesterol, TG, HDL-Cholesterol, LDL- Cholesterol was within normal limit. 9. In the MMSE-K, the most score was from 16 point to 20 point, and second only was from 11 point to 15 point, and the next was from 6 point to 10 point. 10. In the Ischemic score, 20 cases(62.5%) was diagnosed as brain vascular type dementia, and mixed type dementia was 9 cases(28.125%), Alzheimer type dementia was 3 cases(9.375%). 11. The most used recipes were a sort of recipes to activate of flow the vital energy and the blood, to remove the phlegm(41 cases 33.9%), especially DODAMHOALHEL TANG (12 cases, 9.9%), ANSINCHUNGNOITANG (8 case, 6.6%) was the most used recipe. 12. In the judgement of efficacy, 17 cases(53.125%) showed excellent efficacy, 10 cases(31.25%) showed good efficacy, 5 cases(15.625%) showed no change and that according to MMSE-K, 4 case(18.18%) showed excellent efficacy, 15 cases(68.18%) showed good efficacy, 15 cases(68.18%) showed no change.

• Korean Journal of Soil Science and Fertilizer
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• v.25 no.1
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• pp.57-61
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• 1992

For testing salts effect on seed germination, nitrogen solutions($(NH_4)_2SO_4$, $NH_4NO_3$, $KNO_3$, $Mg(NO_3)_2$, $Ca(NO_3)_2$, $(NH_2)_2CO$) were treated to chinese cabbage(Brassica rape L.) and lettuce(Lactuca sativa L.) seeding on the quartz sand bed given a tilt to wet by dripping. Electrical conductivities (mS/cm) increased with direct proportion by equivalent gram-molecular weight at $(NH_4)_2SO_4$ and $KNO_3$, $NH_4NO_3$, but those of Mg and Ca salt remained 1 1/2 times higher. And urea solution never showed EC at all. $(NH_4)_2SO_4$ solution appeared to have value of EC with 1.37 times as high as that of $KNO_3$ and it was in order of $(NH_4)_2SO_4>NH_4NO_3>KNO_3>Ca(NO_3)_2>Mg(NO_3)_2$ comparing with same percentage solution. Application of $Mg(NO_3)_2$ and $(NH_4)_2SO_4$ among 6 salts resulted in a severe decreas in germination of both crops, and $NH_4NO_3$ showed light inhibition in comparison to $KNO_3$. Urea showed little effect on germination as the same as $Ca(NO_3)_2$ and $KNO_3$ solution at low concentrations, but the latter two salts reduced germination remarkably at high concentrations. It is likely to show that germination inhibition is not affected by salt salanity but by the sort of salts.

• Korean Journal of Soil Science and Fertilizer
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• v.25 no.2
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• pp.168-174
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• 1992

This study was carried out to find out the distribution of soil components and their relationships in layer of soil profiles under upland condition. Concentrations of nitrate, chloride, and that sort of thing in soil profiles were tested in a field covering $235m^2$ by core sampling down to 150cm depth. Total nitrogen contents in soil profiles progressively decreased in lower depths down to 150cm. Nitrate concentrations in deeper layers than 110cm, which revealed a similar distribution pattern with total nitrogen down to 110cm, increased with the depth lowering to 150cm, indicationg that nitrate has leached to deep layer. Natural abundance of $^{15}N$ in total nitrogen and nitrate in all the soil profiles showed higher values compared with the other general cultivated soils and trended to get higher in deeper layers. The horizontal variation of $^{15}N$ distribution in the field surveyed was not significant. Chloride concentrations and EC values in soil profiles increased with depth where nitrate was accmulated, and showed a highly positive correlation between them.

• Korean journal of communication and information
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• v.23
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• pp.113-151
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• 2003

The major goal of this study is to examine the relation between conflict management strategies and communication competences and the relation between communication competences and relational outcomes of actors in conflict communication situations. Some of the major findings are as follows; 1. The integrate strategy has some positive correlation with communication competences. But escape strategy has some negative correlations with them. It means that the actors who have integrate strategy seems to be evaluated their communication competences highly and the others who have escape strategy seems to be evaluated them lowly. 2. The communication competences have some positive correlations with the relational outcomes such as variables of intimacy, trust and relational satisfaction after conflict. This means the actors evaluate others' communication competences highly intend to have more intimacy, trust and relational satisfaction after conflicts. 3. The communication competence intermediate the conflict management strategy and relational outcomes after conflict. It means that relational outcomes after conflict depend on partners' recognitions of actors communication competence. In sort the present study demonstrates that it is important to improve communication competences in order to get some productive output in conflict interpersonal communication situation.

• Journal of Environmental Science International
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• v.18 no.4
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• pp.463-471
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• 2009

A study on vegetation in the Mangyeong River and Dongjin River basins and the surrounding regions of the Saemangeum Reclaimed Land was conducted in a series of efforts to determine the expected ecological changes in the salt marshes, to restore their vegetation, to explore the restoring force of halophyte, to examine the community mechanism and, ultimately, to rehabilitate marshy land vegetation along the lakeside, coastal dune and salt marshes of the Saemangeum Project Area. The findings of the study may be summed up as follows: Five species such as Suaeda japonica, Salicornia herbacea, Atriplex gmelini, Aster tripolium and Suaeda asparagoides that are mostly distributed in the estuary of the Saemangeum Reclaimed Land were analyzed to examine the mechanism of halophyte to maintain their community. To find out the strategies of plants for survival and the cause of forming community structure, a research was made as for appearance ratio of biomass, root lengths and germination. With regard to biomasses of halophyte, the biomass of Suaeda japonica increases rapidly, while Salicornia herbacea adopts a strategy of unstable growth pattern by which the biomass increases slowly in parallel with its slow speed of growth since initial appearance of young sapling. In contrast, Suaeda asparagoides, Atriplex gmelini and Aster tripolium choose to adapt themselves to environment promptly by being transformed into life form of annual or biennial plant, a pattern that is presumed to be favorable and stable for survival in the later stage of growth. In short, there is a sharp distinction among the 5 species: i.e. Suaeda japonica that begins to grow fast in the length of surface and underground section but slows down from the mid-stage on; Salicornia herbacea that grows slowly in the beginning step but starts to step up from the middle onward; Atriplex gmelini and Aster tripolium growing slowly in the initial stage but fast later on; and Suaeda asparagoides that turns from the constant growth in the beginning to rapid growth in the later period. The outcomes of the analysis into status of growth and influencing factors of Suaeda japonica in the sowing field that is most widely prevalent in the Saemangeum Reclaimed Land as a sort of ecological pioneer in the salt marshes showed that the average size of grass lands, density and number of individuals increase in the natural sowing field as well as in the plowing field regardless of their physical as well as physico-chemical features of the soil as the season progresses from June to October of a year.

• Journal of Periodontal and Implant Science
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• v.26 no.1
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• pp.216-229
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• 1996

Interferon(IFN) is a sort of glycoproteins that are produced by activated lymphocyte, monocyte and fibroblast. IFN has anti-viral effects, immuno-defensive mechanism and regulating properties to the several kinds of cells that includes affect on the bone formation and resorption. The effect of IFN on the osteoclast & other tissue cells has been studied in a number of researchers with the limited reports on the osteoblast. The purpose of this study was to evaluate the effects of IFN on the osteoblastic function. The MC3T3/El cell(Mouse osteoblast) was incubated in ${\alpha}-minimum$ essential medium containing 10% FBS. To detect the cytotoxic effect of $IFN-{\gamma}$ on osteoblast, the cells were cultured in 96-well plate to which $IFN-{\gamma}$ of various concentrations were added for 2 days. After staining with trypan blue, total cells and living cells were counted under microscope. To determine the activity of alkaline phosphataset(ALP), various concentrations of $IFN-{\gamma}$ were treated to culture medium, and biochemical assay was performed. $IFN-{\gamma}$ and $IFN-{\gamma}$ plus cycloheximide were added to culture medium separately and then ALP activity were determined. To detect the effect of the $IFN-{\gamma}$ on the bone formation of osteoblast, long-term culture was performed, and calcified nodule formation were observed using von Kossa's staining. After the addition of $IFN-{\gamma}$ with various concentrations to the medium, no cytotoxic effect of $IFN-{\gamma}$ was detected at any concentration. The significant increase in ALP activity of osteoblast were found the concentration of $IFN-{\gamma}$ 500-2500U/ml and the culture time of 24-48 hours respectively. The enhancement of ALP activity by $IFN-{\gamma}$ of osteoblast was decreased significantly by the treatment of cycloheximide. After long-term culture of osteoblast, the nodule formation was found to be increased in number and density by the addition of 500 U/ml $IFN-{\gamma}$. These results suggest that $IFN-{\gamma}$ was affected on the bone formation of osteoblast. Forthemore this kind of study or $IFN-{\gamma}$ to osteoblast will be held continuously.

• Culinary science and hospitality research
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• v.8 no.2
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• pp.197-206
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• 2002

The present study attempted to obtain a basic data concerning the effect of $\pi$-water, a sort of physiological water, on the maintenance of chicken freshness. The meats were divided into three groups: the control, 20% - dilution, and 5% - dilution groups. In the experiment, the changes of the TBA-values of the meats started to appear on the 3rd day in the control group, and from the 4th day in the 20% - and 5% - dilution groups. The changes of pH didn't appear in the meats as the storage time passed. The number of general bacteria increased rapidly on the 3th day in the control, and on the 5th day in the 20% -, and 5% - dilution groups. As for the color, the meats turned greenish on the 5th day in the control, 7th, in 20% - dilution, and, l0th in the 5%-dilution groups. As for the order, the meats emitted the unpleasant order, such as that of ammonia, on the 3rd day in the control, 5th, in the 20% - dilution, and, 7th, in the 5ft-dilution group.

• Journal of the Korean Society of Safety
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• v.32 no.2
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• pp.34-37
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• 2017

In recent emerging industry, Display field becomes bigger and bigger, and also semiconductor technology becomes high density integration. In Flat Panel Display, there is an issue that electrostatic phenomenon results in fine dust adsorption as electrostatic capacity increases due to bigger size. Destruction of high integrated circuit and pattern deterioration occur in semiconductor and this causes the problem of weakening of thermal resistance. In order to solve this sort of electrostatic failure in this process, Soft X-ray ionizer is mainly used. Soft X-ray Ionizer does not only generate electrical noise and minute particle but also is efficient to remove electrostatic as it has a wide range of ionization. X-ray Generating efficiency has an effect on soft X-ray Ionizer affects neutralizing performance. There exist variable factors such as type of anode, thickness, tube voltage etc., and it takes a lot of time and financial resource to find optimal performance by manufacturing with actual X-ray tube source. MCNPX (Monte Carlo N-Particle Extended) is used for simulation to solve this kind of problem, and optimum efficiency of X-ray generation is anticipated. In this study, X-ray generation efficiency was measured according to target material thickness using MCNPX under the conditions that tube voltage is 5 keV, 10 keV, 15 keV and the target Material is Tungsten(W), Gold(Au), Silver(Ag). At the result, Gold(Au) shows optimum efficiency. In Tube voltage 5 keV, optimal target thickness is $0.05{\mu}m$ and Largest energy of Light flux appears $2.22{\times}10^8$ x-ray flux. In Tube voltage 10 keV, optimal target Thickness is $0.18{\mu}m$ and Largest energy of Light flux appears $1.97{\times}10^9$ x-ray flux. In Tube voltage 15 keV, optimal target Thickness is $0.29{\mu}m$ and Largest energy of Light flux appears $4.59{\times}10^9$ x-ray flux.

• Journal of the Korean Geographical Society
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• v.29 no.3
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• pp.360-368
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• 1994

To this day, a number of quantitative analytical methods have been employed in clarifying regional characteristics in the discipline of geography. This paper attempted, as a part of application of those quantitative analyses, to make clear the urban functions and consequently the urban characteristics statistically by adopting newly-introduced CHAID, a sort of discriminant analyis technique. The processing of data was sonducted in two phases. To begin with, the urban functions were classified after designating twenty cities - the population of each city counting 250, 000 or more - as predictor variable, and at the same time four major urban functions like administration, marketing, finance and production as response variable. And then, preeminent functions of individual region were discriminated and concurrently classified by treating the remaining traffic, education, medicare, culture and transportation functions as predictor variable, and the following five regions as response variable: Metropolitan Seoul Area. Pusan region, Taegu region, Kwangju region and Chungcheong region. According to the result of this analysis, marketing and administration are emereed as meaningful functions in Seoul and Taegu respectively. As for the finance function only Pusan and Pucheon can be discriminated. Seoul, Pusan and Seongnam reveal their dominancy in production function. To take a look at the result of the latter analysis, the Metropolitan Seoul area shows, among other functions, strong traffic and finance functions. When it comes fo Pusan region, adminstration, education and finance functions are recorded as a leading ones, and Taegu region is preferable in education, medicare and transportation functions. In case of Kwangju region adminstration, production and education functions are discriminated from any other functions. Chungcheong region shows similar aspect with only traffic function replacing the production function of Kwangju region. Based on aforementioned anlysis, it can be said that the CHAID technique, which is capable of processing large amount of categorical data and, by presenting its outcome in the form of dendrogram, facilitates the interpretation work, is an effective, meaningful means to classify and discriminate certain geographical regions and their characteristics.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.2 no.2
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• pp.49-68
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• 2007

This paper develop self pre-checkup lists for the validity of business model as web business starters can utilize to open business. In particular, self pre-checkup lists invented by Dr. Bruce Merrifield, is reapplied and modified in appropriate to internet shopping mall business. This paper complete many literature reviews to identify appropriate factors of evaluation such as about the characters of internet business, business validity testing theory for internet business model, pros and cons of e-business and startup ventures, factor analysis of technology valuation, and pros and cons for internet shopping mall. This paper define six different factors; scale of sales, the growth rate of market, competitiveness, risk portfolio, industry upside down, and social conditions, as the factors of evaluating the business attractiveness. Meanwhile, it define characters of CEO, content's power, mutual inclusion, commerce, fulfillment, marketing power as the factors of business appropriateness. This paper also conducts several case studies; company I, D, G of applying the former model. This paper sort out internet business model in imaginations by utilizing self pre-checkup lists of business evaluation. Also, the outcomes of evaluation is expected to provide meaningful future business implications.