• Journal of agricultural medicine and community health
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• v.49 no.1
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• pp.37-49
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• 2024

Objectives: This study aimed to explore whether there are differences in smoking status between two regions of Wonju-City and Chuncheon-City, Gangwon State, and to determine whether the experience of smoking cessation programs in the region affects quit attempts. Methods: The study design was a cross-sectional study in which adults aged 19 and older living in two cities were surveyed using a pre-developed mobile app to investigate social capital for smoking cessation, and a total of 600 citizens were participated, including 310 in Wonju-City and 290 in Chuncheon-City. The statistical analysis was conducted using chi-square test and logistic regression analysis. Results: Wonju-City had a higher prevalence of current smoking than Chuncheon-City. Among smoking cessation programs operated by local public health centers, Wonju-City had a lower odds ratio for experience with smoking cessation education than Chuncheon-City (OR=0.52, 95% CI=0.33 to 0.81). When examining the effect of smoking cessation program experience on quit attempts, in Wonju-City, citizens who had completed smoking cessation education and used a smoking cessation clinic were more likely to attempt to quit than those who had not (OR=2.31 and OR=2.29, respectively). In Chuncheon-City, citizens who were aware of smoking cessation support services were 2.26 times more likely to attempt to quit smoking than those who were not, but statistical significance was not reached due to the small sample size. Conclusion: Therefore, healthcare organizations in both regions should develop more practical intervention strategies to increase smokers' quit attempts, reduce smoking rates in the community, and address regional disparities.

• Information Systems Review
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• v.20 no.4
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• pp.1-23
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• 2018

A smart phone has been widely spread around world and makes people enjoy online shopping in any time and any place. Recently it also changes the distribution environment. O2O (Online-to-Offline) service becomes new normal due to its convenience of ease shopping of product and services. O2O service market shows steady and steep growth, It is reported that, however, 80% of the businesses has been discontinued within the first year because of unstable business models, customer dissatisfaction and distrust of service. Therefore, it is very important research issue to find out influential factors promoting continuous usage intention of O2O service. Previous study shows that it only considers online characteristics and lack of analysis about offline characteristics and social impact factors. The purpose of this paper is to find out continuous usage intention factors of O2O services by literature review, case analysis, and empirical test. A comprehensive research model and related hypothesis are developed and tested by using a structural equation, Survey was carried out among users who have used O2O service including payment service for at least once. Finally 611 samples are selected out of total 813 surveys. The result shows that the model is theoretically proved and 12 out of 17 hypotheses are accepted. The contribution of this paper is that it provides a new theoretical research model about continuous usage intention factors as well as practical guidelines about promoting continuous usage and growth strategies of O2O service.

• Korean Journal of Animal Reproduction
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• v.22 no.4
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• pp.425-435
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• 1998

To improve the efficiency of nuclear transplantation in bovine, in this study the development in vitro of nuclear transferred (NT) embryos was compared by different activation regimens of the enucleated oocytes. The effect of developmental stage and culture system of donor nuclei on fusion and development in vitro of NT embryos were also evaluated. Oocytes were collected from Hanwoo ovaries obtained from slaughterhouse and matured in Ham's F-10 supplemented with hormones. After 20~22 h maturation, the oocytes were vortexed to be free from cumulus cells and subsequently their nucleus and the first polar body were removed. Enucleated oocytes were divided into 3 groups for activation; the oocytes of group I were activated with ionomycin for 5 min and subsequently incubated in 6-dimetylarninopurine (DMAP) for 4 h, Those of group II were treated with DMAP for 4 h at 39 h after onset of in vitro maturation (IVM) and those of group III were kept in room temperature ($25^{\circ}C$) for 3 h at 39 h after onset of IVM. After in vitro fertilization (IVF) the embryos for muclear donor were cultured either by group culture (20 embryos /50 ${mu}ell$ drop) or individually (1 embryo /50 ${mu}ell$ drop) for 4 day and 5 day. At day 4 and 5 after IVF, blastomeres were separated in calcium-magnesium free medium, and then classified into small (day 5: $\leq$ 38 ${\mu}{\textrm}{m}$, day 4: $\leq$ 46 ${\mu}{\textrm}{m}$) and large (day 5 : $\geq$ 38 ${\mu}{\textrm}{m}$, day 4 ; $\geq$ 46 ${\mu}{\textrm}{m}$). The separated blastomeres were replaced into enucleated and activated recipient cytoplasm. The blastomere-oocyte complexes were fused by electrically. The NT embryos were cultured in TCM-199 containing 10% FCS in 39$^{\circ}C$, 5% $CO_2$ incubator for 7 day. The results obtained were summarized as follows; There were no differences in fusion and development to blastocyst between groups as group I (68%, 10%), group II (75%, 14%) and group III (73%, 9%), respectively. However, the cell number in blastocyst of NT embryos in group III were significantly fewer than in the other groups (P＜0.05). No differences in fusion and development to blastocyst were found between individual or group cultured and between small or large blastomeres of day 4 and day 5 donor embryos. From these results, it was concluded that the combination of ionomycin and DMAP, or treatment of DMAP at 39 h after onset of IVM were useful for the efficient of production of NT bovine embryos, and the individual cultured embryos could be simply used as donor nuclei for NT bovine embryo.

• Journal of Sericultural and Entomological Science
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• v.13 no.2
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• pp.81-94
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• 1971

This research is conducted to study the effect to rebbuding, death atop, yielding and occurrence of twig blight disease with the interemediate cutting periods of mulberry branch and at the picking levels of leaf remains in autumn. The results obtained are as follows: 1. Re-budding branches are decreased with delaying of interval cutting period, and that more leaves remained lesser both re-budding branches and buds are observed. Therefore, it is better that leaves remained are placed on the upper part of branch, practically with 3-5 leaf remains. It has decreased re-budding branches, in case cutting is conducted in Sept. 20 with picking leaving 3-5 leaf on. 2. With regard that all picking increases the percentage of death atop of the branch and upper half part picking increases slightly over the other treats. Although it seems unlikely to be different in the other treats with cutting period, exception of all picking, it is elucidated better that the all picking after cutting in Sept. 15 represents unusually high, seemingly effected by the temperature contition preferable to the life of twig blight disease along with the lack of branch nutrition caused by the all picking. 3. In view of yielding, it has no difference in autumn yielding with cutting period, but more picking levels of leaf remains, more yielding. In spring yield, both no picking and all picking is the lowest, in spite of cutting period. Each treat produces high yielding except the no picking if rutting is done in Sept. 15 and Sept. 20, respectively; otherwise it is done earlier or later, each treat produces low yielding. It is suggested that yielding ability in following spring affected by the autumn picking because all picking treats represent lower yielding ability than no picking ones except of cutting in Sept. 15 and Sept. 20. With respect to total yield in spring and autumn, it is represented that other treats, among which cutting in Sept. 15 and Sept. 20 is especially high, produce higher yielding than both no picking and all picking. But no difference seemed in leaf remained treats. In these respects, it may be concluded that 3-5 leaf remains after the interval cutting in Sept. 15 to Sept. 20 increases the yielding throughout two seasons and it is suggested that 3-5 leaf remains after cutting in Sept. 5 to Sept. 10 has no difference with no picking and cutting after that day. 4. Diseases in the branch remained are twig blight, massaria-bye, and Die-back, of which twig blight attacks tremendously and slight ouurence in messaria-byo and Die-back. In ouurence of twig blight, it is appeared much in all picking and seasonal occurence high in Sept. 15 with 92.9, and in Sept. 30 with 100 as index, respectively. Also it occurs ,considerably in upper part picking but little occurrence in no picing. 5. It is considered that negative correlation among re-budding percentage. No. of re-budding leaf, and spring yielding is found, seemingly without heavy correlation at -0.42, and -0.27, respectively. However, death atop of branch and occurence of twig blight has little correlation with spring yield. On the other hand, positive correlation highly appeared with the correlation coefficient at 0.8 between occurence of twig blight and death atop of branch.

• Korean Journal of Soil Science and Fertilizer
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• v.23 no.2
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• pp.87-93
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• 1990

A statistical model to predict soil temperature from the ambient meteorological factors including mean, maximum and minimum air temperatures, precipitation, wind speed and snow depth combined with Fourier time series expansion was developed with the data measured at the Suwon Meteorolical Service from 1979 to 1988. The stepwise elimination technique was used for statistical analysis. For the yearly oscillation model for soil temperature with 8 terms of Fourier expansion, the mean square error was decreased with soil depth showing 2.30 for the surface temperature, and 1.34-0.42 for 5 to 500-cm soil temperatures. The $r^2$ ranged from 0.913 to 0.988. The number of lag days of air temperature by remainder analysis was 0 day for the soil surface temperature, -1 day for 5 to 30-cm soil temperature, and -2 days for 50-cm soil temperature. The number of lag days for precipitaion, snow depth and wind speed was -1 day for the 0 to 10-cm soil temperatures, and -2 to -3 days for the 30 to 50-cm soil teperatures. For the statistical soil temperature prediction model combined with the yearly oscillation terms and meteorological factors as remainder terms considering the lag days obtained above, the mean square error was 1.64 for the soil surfac temperature, and ranged 1.34-0.42 for 5 to 500cm soil temperatures. The model test with 1978 data independent to model development resulted in good agreement with $r^2$ ranged 0.976 to 0.996. The magnitudes of coeffcicients implied that the soil depth where daily meteorological variables night affect soil temperature was 30 to 50 cm. In the models, solar radiation was not included as a independent variable ; however, in a seperated analysis on relationship between the difference(${\Delta}Tmxs$) of the maximum soil temperature and the maximum air temperature and solar radiation(Rs ; $J\;m^{-2}$) under a corn canopy showed linear relationship as $${\Delta}Tmxs=0.902+1.924{\times}10^{-3}$$ Rs for leaf area index lower than 2 $${\Delta}Tmxs=0.274+8.881{\times}10^{-4}$$ Rs for leaf area index higher than 2.

• Journal of Sericultural and Entomological Science
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• v.15 no.2
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• pp.21-28
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• 1973

This report is prepared to promote cocoon natures for the use of silk reeling material. It is easily understandable that there must be disuniformity composed with superior group and inferior group in commercial silkworms. If such different groups be seperated by some method, it would be a great contribution for the cocoon production. For a comparative purpose, silkworm sex seperation carried out because male silkworms produce more silk than female worms. The author has developed a new chemical reagent available for the seperation of superior group and inferior group from commercial silkworms, which he has named it as Better Hybrid Controller (BHC). The obtained comparative results are summarized as followings. 1. Basic investigation of BHC application a) In case BHC applied with hybrid worms and pure line, the former one starts to adapt mulberry leaves earlyer than pure line variety. b) The mulberry adapting interval distribution of pure line worms after BHC application showed U type distribution, but hybrid worms showed L type or Poisson's distribution. c) In case of BHC application with silkworms, the longer period application is, the duller distribution was formed. d) When silkworms are seperated in two groups by use of BHC application, the earlyer mulberry adapted group is seemed as stronger than the other part and the group ratio is 2 : 1. 2. Comparation between sex seperation result and better hydrid control (BHC) seperation result. a) The cocoon shell per cent of male worm group showed betweer result than the female group but only 0.4% difference between sexes. b) The cocoon shell per cent of superior group, seperated by BHC, showed 0.7% more than the inferior group. c) The average cocoon shell per cent of BHC treated cocoons showed much more than the Control group as 1.6∼2.4% increase. Enven the inferior group showed better result than the Control. d) Such unexpected result is considered to be the result that BHC application is activating some thing with silkworm physiology. e) On the ether hand, the result of sexes seperated groups or male worm group did not show desirable conclusion as far as cocoon shell per cent is concerned. f) However, when the male group was reeled as silk, it showed much better silk yield or silk per cent of cocoon than the female group as much as one per cent difference between by sexes. Such result was brought by superior silk yield from cocoon shell as much as 87.4%. g) On the other hand, the male group showed lowest non breaking reelable ratio (63%) among all group comparation. h) When we compare cocoon qualities by sex seperation and BHC seperation against the Control, there is no qualitative change, but BHC group showed quantitative promotion with cocoon bave length as much as about hundred meters. i) In case of calculation for productive income of cocoon production, BHC applied group showed about ten per cent income promotion more than the Control. The sexes seperated group, however, showed rather negative result because the male cocoon produced poor weight per box eggs which could not cover it by the inclose of silk yield of it. j) So, the BHC application with the fetched worm stage brought about big promotion for cocoon production. k) BHC method may be used either for seperation purpose or quantitative promotion with whole silk-worms. 3. Only male silkworms rearing did not show desirable productivity, so there is no reason to work out it in the fetching stage of worm.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.50 no.spc1
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• pp.152-160
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• 2005

This study was carried out to investigate selectable criteria in evaluating waxy corn $F_1$ hybrids for developing good eating quality waxy corn variety. The physicochemical property analysis of 6 waxy corn $F_1$ hybrids - Chalok1, Chalok2, Heugjeomchal, Yeonnongl, Chalok4, and Suwon45- showed a range of $11.2\~13.1\%$ for crude protein, $5.1\~6.0\%$ for crude fat, $91.8\~92.6\%$ for amylopectin, and $4.5\~6.6\%$ for free sugar content. The pericarp thickness which is one of the most important characteristics related to tenderness in waxy corn was ranged $34\~47{\mu}m$ in 4 waxy corn hybrids - Yeonnongl, Chalok4, Suwon45, and Heugjeomchal. On the other hand, it was ranged $64\~81{\mu}m$ in Chalok1 and Chalok2. The amylogram analysis by rapid visco analyzer showed that in fresh waxy corn hybrid (DAP25), all amylogram properties except setback were higher in Yeonnongl, Chalok4, and Suwon45 compared to those of Chalokl, Chnlok2, and Heugjeomchal. However, in matured waxy corn hybyids (DAP45), the result was the opposite - the amylogram properties were higher in Chalokl, Chalok2, and Heugjeomchal than those of Yeonnongl, Chalok4, and Suwon45. The texture analysis showed that gumminess, chewiness, and hardness increased dramatically with the time after the cooking in Chalokl and Beugjeomchal. On the other hand, these above pyoperties did not change as rapidly with the time in Yeonnongl, Chalok4, and Suwon45. Gumminess, chewiness, and hardness did not increase much within 6 hours after steamingr but increased significantly 32 hours after steaming. Therefore, we have reached a conclusion that texture analysis of cooked waxy corn should be carried out 6 hours after steaming. In the sensory evaluation, Yeonnongl, Chalok4, and Suwon45 revealed higher palatability -6.8, 7.1, and 6.9 respectively - than. that of Chnlokl, Chalok2, and Heugjeomchal. The palatability analysis of 6 waxy corn hybrids showed palatability positively correlating with free sugar content,100-kernel weight, kernel length, kernet width, and consistency, but negatively correlating with pericarp thickness, hardness, gumminess, and chewiness.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.24 no.1
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• pp.11-24
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• 1979

To characterize elastic and plastic chilling injury, rice seedlings grown at 28/$16^{\circ}C$ day/night temp. under 20K lux (13hrs.) in a phytotron were subjected to a 11/$6^{\circ}C$, 20K lux condition for 2, 4, 6 or 8 days at 1, 2, 3, 4 or 5th leaf-stage, respectively, followed by further growth under 28/$16^{\circ}C$condition till 30th day after seeding. Japonica variety Jinheung and Chulwon No.1 survived almost 100% without any significant , discoloration and death of leaves due to chilling even under the chilling of 8 days at all seedling ages tested. Tongil and Yushin, varieties from Indica x Japonica cross, showed increasing discoloration of leaves and death of plants with increase in chilling intensity. The longest chilling duration shown seedling death less than 5% was 4, 6, 1, 4, 8 days for Tongil, and 6, 6, 1, 2, 2, days for Yushin at 1, 2, 3, 5th leaf-stage, respectively. The degree of discoloration and death of leaves or suppression of height growth was not explicitly related to seedling death or the dry weight reduction. The degree of seedling death or dry weight reduction could differentiate chilling tolerance of varieties and seedling ages, but somewhat differently. Reduction in dry weight due to chilling occurred even without any visible injury or seedling death. These suggest that both the degree of seedling death and reduction in dry weight should be considered in the test of varieties for chilling tolerance. Combined evaluation of seedling death and dry weight reduction indicated the most susceptible seedling age to chilling injury to be 1 to 2nd leaf-stage for Jinheung, 2 to 3rd leaf-stage for Chulwon No.1, 3rd leaf- stage for Tongil and Yushin, respectively.

• Journal of Sasang Constitutional Medicine
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• v.8 no.1
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• pp.395-411
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• 1996

1. 연구배경 사상체질의학(四象體質醫學)을 창시하여 개인(個人)의 차별성(差別性)을 강조한 동무(東武) 이제마(李濟馬)는 양생(養生)의 방법(方法)에서도 체질별(體質別) 요법(療法)을 말하고 있는데 체질별(體質別)로 과소지장(過小之臟)의 기능(機能)이 정상적(正常的)으로 이루어지는 상황을 완실무병(完實無病)의 조건으로 제시(提示)하였고 이를 위한 수단(手段)으로 성정(性情)과 함께 약물(藥物), 식품(食品) 등을 이용하였다. 특히 식이요법(食餌療法)에 있어서도 체질(體質)에 따른 구별(區別)의 필요성(必要性)을 말하고 있는데 식품(食品)이라 하더라도 그 음식(飮食)을 섭취하여 과대(過大)한 장기(臟器)의 기능(機能)은 유제(柳制)하고 과소(過小)한 기능(機能)은 보완(補完)받음으로써 불균형(不均衡)을 조정(調整)한 것이다. 당뇨병의 식단 작성은 평생동안 열량(熱量)과 영양소(營養素) 필요치(必要置)을 맞출 것을 권장하고 당뇨병학회에서 편집한 식품교환표(食品交換表)를 사용(使用)하는 것이 일반적(一般的)인데 식품교환표(食品交換表)는 많은 식품(食品)들중에 같은 영양소를 가진 식품(食品)들을 한 그룹으로 묶어 환자(患者)의 기호(嗜好)에 따라 교환(交煥)해 가면서 먹을 수 있도록 고안(考案)한 것이니 이에 지시한 수량(數量)만 섭취해도 저(低)cal식(食)으로 관양(管養)의 균형(均衡)이 잘 이루어진다. 본 연구는 체질별로 이로운 식품표에 근거하여 식이요법(食餌療法)이 특히 강조되고 하루 섭취열량이 제한되는 성인병중의 하나인 당뇨병(糖尿病)의 식단(1800kcal)을 식단작성법에 따라 구성(構成)하여 몇가지 예를 제시해 보았다. 구체적으로 태음인(太陰人), 소음인(少陰人), 소양인(少陽人)의 당뇨 환자 1800kcal에 대한 식단을 구성하여 제시했는데 즉, 태음인(太陰人)의 식단은 태음인(太陰人)에 유리(有利)한 식품(食品)들로 구성하고 해(害)로운 식품(食品)들은 제외시키는 방법(方法)을 이용하였다. 이 식단은 다분히 이론적(理論的)인 식단으로 임상(臨床)에 이용(利用)하여 본 바는 없으나 동량(同量)의 열량(熱量)을 섭취(攝取)하더라도 체질(體質)에 적합(適合)한 식품(食品)으로 구성된 식사(食事)가 각 체질의 섭생(攝生)에 더 유리(有利)하지 않올까 하는 단순(單純)한 사고(思考)에 바탕을 둔 것이다. 2. 연구방법 1) 후세가(後世家)가 주장(主張)한 체질별(體質別) 식품(食品) 분류(分類)를 종합, 정리한 체질별(體質別) 식품표(食品表)를 제시한다. 박석언의 동의사상대전, 박인상의 동의사상요결, 송일병의 알기 쉬운 사상의학, 홍순용의 사상진료보원, 홍순용, 이을호의 사상의학원론에서 체질별로 유익한 식풍을 조사하여 곡류, 과일류, 채소류, 어패류, 육류로 분류하여 살펴본다. 2) 당뇨병(糖尿病) 식이요법의 식단 작성법의 개요(槪要)를 제시한다. 3) 1)의 체질별(體質別) 식품표(食品表)로 태음인(太陰人), 소음인(少陰人), 소양인(少陽人)의 당뇨 식단 1800kcal을 작성해 제시(提示)한다. 체질별(體質別)로 유익(有益)한 식품(食品)은 1)의 식품표에 근거(根據)하고 체질별(體質別)로 해(害)로운 식품(食品)은 노정우(盧正祐), 한동석(韓東錫)의 주장에 근거(根據)한다. 3. 결과 체질별(體質別) 식품표(食品表)는 후세가의 연구를 종합하여 제시(提示)하였고, 식품(食品)을 분류(分類)한 후(後) 약명(藥名)과 성미(性味), 귀경(歸經)을 찾아 도표화 하였다. 체질별 식품들은 대부분 소음인(少陰人)의 경우 신감(辛甘) 온열(溫熱)하며 비위(脾胃)로 귀경(歸經)하고 태음인(太陰人)의 경우 감신(甘辛) 온열(溫熱)하며 폐간(肺肝)으로 귀경(歸經)하고 소양인(少陽人)의 산고(酸苦) 양한(凉寒)하고 신(腎)으로 귀경(歸經)함이 우세(優勢)함을 알 수 있다. 즉, 체질적으로 양성(陽性)인 소양인(少陽人)은 식품의 성질이 음성(陰性)인 것이 유리(有利)하고 체질적으로 음성(陰性)인 태음인(太陰人), 소음인(少陰人)은 식품의 성질이 양성(陽性)인 것이 유리(有利)하다. 다양한 식품(食品)을 섭취하고자 하는 환자의 욕구(慾求)에 맞추면서도 식품교환의 범위를 체질별로 유익한 식품들로 제한하여 동일(同一)한 열량(熱量)의 식단이라도 체질에 맞는 식품으로 차별성(差別性)을 두었는데 식단의 작성은 전문 영양사의 의견을 거쳤다. 제시된 식단은 다소 이론적(理論的)으로 작성(作成)된 단계이고 임상적(臨床的) 검증을 거친 바 없으나 활용하기에 따라 실용성을 얻을 수 있으리라 본다. <식단예> 태음인의 식단: 곡류 : 콩, 율무, 밀가루, 밀, 수수, 들깨, 고구마, 땅콩, 기장, 옥수수, 두부, 설탕등 태음인에 유리한 식품으로 교환한다 어때류 : 우렁이, 대구, 조기, 민어, 청어, 오정어, 낙지, 미역, 김, 다시마등으로 교환한다 육류 : 소고기, 우유등으로 교환한다 과일류 : 밤, 배, 호도, 은행, 잣, 살구, 매실, 자두등으로 교환한다 채소류 : 무우, 도라지, 연근, 토란, 마, 고사리, 더덕, 목이버섯, 송이버섯, 석이버섯등으로 교환한다 해로운 음식 : 닭, 돼지, 모밀, 배추, 사과, 염소고기, 조개, 계란, 곳감, 커피등은 피한다 * 아침 ; 콩나물죽, 대구포묶음, 우령이무침, 갓김치, 우유, 자두 점심 ; 기장밥, 콩나물두부찌게, 장어양념구이, 도라지나물, 열무김치, 배 저녁 ; 수수밥, 두부명란, 더덕양념구이, 깍두기 * 아침 ; 비빔국수, 토란국, 알타리김치, 두유, 살구주스 점심 ; 율무밥, 낙지전골, 김무생채, 느타리나물무침, 동치미, 귤 저녁 ; 콩밥, 감자북어국, 두부묶음, 열무김치 소음인의 식단: 곡류 : 찹쌀, 좁쌀, 차조, 감자등 소음인에 유익한 식품으로 교환한다 어패류 : 명태, 미꾸라지, 뱀장어, 뱀, 메기등 육류 : 닭, 개, 꿩, 염소, 양, 참새고기등 과일류 : 사과, 귤, 복숭아, 대추등 채소류 : 미나리, 파, 마늘, 후추, 시금치, 양배추, 생강, 고추, 당근, 양파, 감자, 쑥갓등 해로운 음식 : 메밀, 호도, 계란, 고구마, 녹두, 돼지고기, 밤, 배, 배추, 보리, 쇠고기, 수박, 오이, 참외, 팥등은 피한다. * 아침 ; 찰밥, 닭찜, 감자전, 쑥갓나물, 부추김치, 사과 점심 ; 감자밥, 메기매운탕, 명태조림, 미나리, 고들빼기김치, 사과주스 저녁 ; 좁쌀밥, 양배추감자국, 병어양념구이, 연근양념조림, 귤, 인삼차.

• Journal of the korean academy of Pediatric Dentistry
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• v.31 no.4
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• pp.569-578
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• 2004

The purpose of this study was to clarify the palatal arch length, width and height in the primary and permanent dentition. Samples were consisted of normal occlusions both in the primary dentition(50 males and 50 females) and in the permanent dentition(50 males and 50 females). With their upper plaster casts were used and through 3-dimensional laser scanning(3D Scanner, DS4060, LDI, U.S.A.), cloud data, polygonization, section curve and loft surface, fit and horizontal plane were based to measure the palatal arch length, width and height(Surfacer 10.0, Imageware, U.S.A.). T-tests were applied for the statistical analyze of the data. The results were as follows : 1. In the measurement values, the values of the male were higher than those of the female except primary anterior palatal height. There were not only statistically significant differences in anterior palatal width(p<0.05) and posterior palatal width(p<0.01) in primary dentition but palatal width(p<0.05), anterior palatal length(p<0.01), middle and posterior palatal length(p<0.05) in permanent dentition between male and female. 2. In the indices of palate, there were statistically significant differences in height-length index(p<0.05) and width-length index(p<0.01) between male and female in primary dentition. In permanent dentition, there was statistically difference between male and female. 3. In the measurement values, posterior palatal width was increased most greatly. Posterior palatal height, anterior palatal width and anterior palatal length were followed by descending order. On the other hand, anterior palatal height and posterior palatal length were decreased. 4. In the indices of palate, the height-length index, the width-length index and posterior height-width index were increased, but the others were decreased.