• 한국자원식물학회지
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• 제25권3호
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• pp.357-362
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• 2012

The potential cultivation of buckwheat species in Luang Prabang region, Lao PDR where the species has not been naturally grown and not traditionally utilized was studied to introduce buckwheat as a new agricultural material, especially for food and medicine. The growth of Tartary buckwheat species was higher than common buckwheat showing 2.3 fold of plant height compared to common buckwheat. Number of flower per plant in Tartary buckwheat (731) was three fold higher than common buckwheat (244). Dry weight per plant was respectively 1.7 g in Suwon No. 1, 2.6 g in Suwon No. 2, and 1.4 g in KW45. The rate average of seed setting was similar between common buckwheat (41 to 46 %) and Tartary buckwheat (44%). Total seed yield of Tartary buckwheat (184 kg/10 a) in 10a could be estimated to be higher than that of common buckwheat (108 kg/10 a).

• 한국학교보건학회지
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• 제20권1호
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• pp.11-24
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• 2007

Purpose : Health Risk behaviors are a leading cause of preventable morbidity and mortality. Adolescents is a critical transitional period for establishing health behavior for healthy life. The purpose of this study was to describe the types and frequency of the health risk behaviors being performed by middle school students, examine the gender and grade differences of health risk behaviors, and identify the relationship among health risk behaviors. Methods : A total of 1952 early adolescents recruited from 7 middle schools in a district of urban setting completed questionnaires. Youth Risk Behavior Survey-Middle school questionnaires was used to identify the types of health risk behaviors among early adolescents. Data were analyzed by descriptive statistics and Chi-Square test using SAS program . Results : The results showed the frequency for most health risk behaviors and increased with advancing grade level. Males were more likely than females to behaviors related to smoking and violence, whereas females were more likely than males to have suicidal thoughts, be physical inactive and attempt to lose weight. Among health risk behaviors, the relationship of alcohol experience, smoking, and suicide was high. Conclusion : The findings identify a high risk target group among middle school adolescents and suggest that preventive intervention strategies should take into consideration the types with gender and grade, and provided the evidence that one of health risk behaviors may induce the other health risk behaviors.

• 한국음향학회지
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• 제25권1호
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• pp.14-20
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• 2006

본 논문에서는 지연혼합에서의 암묵신호분리를 위해 분리행렬의 초기 값을 설정하는 방법을 제안한다. 혼합신호의 상호상관행렬에 대한 고유분리를 분석한 후, 고유벡터의 지연정보를 이용하여 초기 값으로 설정한다. 제안하는 방법을 기존의 주파수영역 독립성분분석 (FDICA: Frequency domain independent component analysis)에 초기 값으로 설정하여 분리 성능을 향상시킨다. 컴퓨터 시뮬레이션을 통해 제안하는 방법이 신호대간섭비 (SIR: Signal to Interference Ratio)가 우수하고 학습곡선의 수렴속도가 개선됨을 보인다.

• 보건교육건강증진학회지
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• 제28권3호
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• pp.31-42
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• 2011

Objectives: Busan had the highest mortality and the shortest life expectancy at birth among 16 provinces in Korea in 2008 and there were considerable health inequalities within the region. This study was performed to build up a priority setting framework in Healthy City Busan project. Methods: Analytic hierarchy process was used to determine the relative priority weight for different strategic and program dimensions along with the consistency of response. An on-site workshop-based meeting (calculating importance) and online survey (calculating risk) were conducted to obtain data from 8 experts. Results: The results showed that in strategic criteria "active health promotion & diseases prevention" and "building infrastructure for the Health City project" were two most important factors. In program criteria, considering both importance and risk scores, "making a healthy community" and "building community health centers" in disadvantaged areas were a top priority group. In addition, "enacting an ordinance for the Healthy City", "building the infrastructure for health impact assessment" and "making health care safety net for vulnerable population" were also higher priorities group. Conclusions: Our findings suggest that the Healthy City project in Busan should be focused on strengthening health equity and building infrastructure for sustainability of the project.

• 전기학회논문지
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• 제66권11호
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• pp.1628-1633
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• 2017

The purpose of this study was to identify the difference and correlation in elbow joint maximal flexion strength according to measurement methods and characteristics of muscular contraction, and to develop the predictive equation of elbow joint maximal flexion strength for the optimal exercise intensity setting and accurate measurement. Subjects were 30 male university students. Elbow joint maximal flexion strength of isokinetic contraction, isometric contraction at $75^{\circ}$ elbow joint flexion position, isotonic concentric 1RM, manual muscle strength (MMT) were measured with isokinetic dynamometer, dumbbell, and manual muscle tester. Pearson's r, linear regression equation, and multiple regression equation between variables were calculated. As a result, the highest value was isometric contraction. The second highest value was MMT. The third highest value was isokinetic contraction. 1RM was the lowest. Predictive equations of elbow joint maximal flexion strength between isometric and isokinetic contraction, between isometric contraction and 1RM, among isometric contraction, 1RM, and body weight were developed. In conclusion, 1RM and isokinetic elbow joint maximal flexion strength could be seemed to underestimate the practical elbow joint maximal flexion strength. And it is suggested that the developed predictive equations in this study should be useful in criteria- and goal-setting for resistant exercise and sports rehabilitation after elbow joint injury.

• 한국정보전자통신기술학회논문지
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• 제14권4호
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• pp.323-327
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• 2021

본 논문은 OLED에 사용되는 SUS MASK를 자동액관리 시스템을 사용하여 제작 하였다. SUS MASK의 홀 직경은 0.4 mm으로 설정하여 실험 하였다. 첨가제 F300이 홀 직경이 0.4 mm에 근접하고 오차범위는 평균 0.08로 측정되어 우수함을 알 수 있었다. 그리고 산화환원전위(ORP) 변화에 따른 CuCl2와 FeCl3의 무게 감소량을 측정결과, FeCl3이 ORP 변화에 상대적으로 민감도가 높은 것으로 나타났다. SUS Mask를 연속적으로 에칭하면서 ORP(610 mV)와 비중(1.463)이 자동으로 조절되는지를 실험를 하였다. 실험결과로서는 셋팅 값이 크게 변화되지 않아 자동액관리 시스템이 잘 조절이 잘 되는 것으로 나타났다. 그리고 홀 직경을 0.4 mm로 목표치로 설정한 후 실험 한 결과는 0.36부터 0.44까지 측정되었다. 따라서 SUS MASK 제조공정에서 에칭가공공정은 제작된 자동액관리 시스템을 적용시키면 보다 안정성 높은 정밀도로 향상 시킬 수 있을 것으로 기대된다.

• 생물환경조절학회지
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• 제7권3호
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• pp.219-225
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• 1998

머스크멜론의 담액재배시 착과절위 및 적심절위와 재식밀도를 구명하기 위하여 착과절위는 7~8, 11~12, 또는 15~16절, 적심절위는 22 또는 27절, 재식밀도는 100cm$\times$25cm 100cm$\times$35cm, 100cm$\times$45cm 및 100cm$\times$55cm로 달리하였다. 과실품질은 동일한 착과절위일때 22절 적심구보다 27절 적심구에서 과중이 무겁고 당도가 높았다. 동일한 적심절위일때 착과절위가 높을수록 과중은 무겁고 당도는 낮았다. 100cm$\times$25cm 또는 100cm$\times$35cm 재식구보다 10cm$\times$45cm 또는 100cm$\times$55cm 재식구에서 과중이 더 크고 당도가 높았다. 총과실수량은 재식밀도가 낮아질수록 적었으나 상품과율은 반대로 높아서 상품과의 수량은 100cm$\times$45cm 재식구에서 가장 높았으며 100cm$\times$25cm, 100cm$\times$35cm, 100cm$\times$55cm 순으로 많았다.

• 농약과학회지
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• 제11권4호
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• pp.289-298
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• 2007

국내 사용농약에 대한 ADI를 설정하기 위하여 국제기구 및 선진국의 ADI설정 기준, 설정현황 등을 조사 분석하였다. 설정기준은 설정기관 별로 유사하였으며, ADI는 국제연합(UN) 213종, 미국 332종, 일본 230종, 영국 219종, 유럽공동체 및 호주 435종의 농약에 대하여 설정되어 있었으며, 국내 등록농약은 국가별로 $87{\sim}252$종까지 포함되어 있었다. 국가별 최저 ADI값을 분석한 결과 미국이 32종으로 가장 많았으며 일본 23, 유럽연합 호주 6성분이었다. 미국에 등록된 농약의 RfD설정 시 사용된 표적장기 및 endpoint 는 효소저해, 체중변화, 간에 대한 영향 등의 순이었다. 또한 국내 MRL설정에 사용된 선진국 설정 ADI 수는 JMPR, 일본, 미국 순이었으며, 유럽연합과 JMPR의 ADI 값은 비교한 국가 중 가장 유사성이 높았다. 또한 본 연구에서는 조사 분석된 선진국 및 국제기구의 ADI설정 가이드라인을 참조하여 국내 등록농약에 대한 ADI 설정 원칙을 제시하고 64종 농약에 대한 ADI를 설정하였다.

• 한국치위생학회지
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• 제10권1호
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• pp.141-156
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• 2010

Objective : This study was conducted to examine the relationships among health & oral health promotion behavior according to BMI. The subjects in this study were 704 high school students. Methods : A survey was conducted, and Chi-square, T-test, ANOVA, and Pearson's correlation coefficient were used for data analysis. The findings of the study were as follows; Results : Man is normal weight group accounted for 65.9%, and women is 69.7%(p<0.001). Health & oral health promotion behavior of nutrition(p<0.01) and exercise(p<0.001) that men were higher than women. But health responsibility was higher to women(p<0.001). As to the relationship for the BMI to health promotion behavior, nutrition is over weight group accounted for 3.45, obesity group 3.43, normal weight group 3.26 and under weight group 3.16(p<0.05). Exercise is over weight group accounted for 2.70(p<0.05), and nutrition for oral health is obesity group accounted for 3.47(p<0.05). As for correlation among the BMI, stronger social support, more exercise, better nutrition for oral health, there was a statistically significant relationship between BMI. As the factors significantly affecting BMI, their satisfaction level with exercise, nutrition for oral health, life appreciation, stress management for oral health. Conclusions : This study suggested that health & oral health promotion behavior of high school students in an effort to help improve policy setting on health projects and determine how to teach teens to promote their health throughout their lives.

• Journal of Korean Neurosurgical Society
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• 제42권4호
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• pp.337-341
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• 2007

Objective : Repeated administration of mannitol in the setting of large hemispheric infarction is a controversial and poorly defined therapeutic intervention. This study was performed to examine the effects of multiple-dose mannitol on a brain edema after large hemispheric infarction. Methods : A middle cerebral artery was occluded with the rat suture model for 6 hours and reperfused in 22 rats. The rats were randomly assigned to either control (n=10) or the mannitol-treated group (n=12) in which intravenous mannitol infusions (0.8 g/kg) were performed six times every four hours. After staining a brain slice with 2,3,5-triphenyltetrazolium chloride, the weight of hemispheres, infarcted (IH) and contralateral (CH), and the IH/CH weight ratio were examined, and then hemispheric accumulation of mannitol was photometrically evaluated based on formation of NADH catalyzed by mannitol dehydrogenase. Results : Mannitol administration produced changes in body weight of $-7.6{\pm}1.1%$, increased plasma osmolality to $312{\pm}8\;mOsm/L$. It remarkably increased weight of IH ($0.77{\pm}0.06\;gm$ versus $0.68{\pm}0.03\;gm$ : p<0.01) and the IH/CH weight ratio ($1.23{\pm}0.07$ versus $1.12{\pm}0.05$ : p<0.01). The photometric absorption at 340 nm of the cerebral tissue in the mannitol-treated group was increased to $0.375{\pm}0.071$ and $0.239{\pm}0.051$ in the IH and CH, respectively from $0.167{\pm}0.082$ and $0.162{\pm}0.091$ in the IH and CH of the control group (p<0.01). Conclusion : Multiple-dose mannitol is likely to aggravate cerebral edema due to parenchymal accumulation of mannitol in the infarcted brain tissue.