Circular Quantum Dot내의 Magnetoexciton 상태의 포텐셜 의존성

이승희,이효석,손기수 경북대학교 기초과학연구소 1994 慶北大學敎 基礎科學硏究所 硏究論文集 Vol.15 No.-

利潤函數의 計量的 模型에 관한 小稿

金東燮,韓昇熙 公州大學校 産業開發硏究所 1993 産業開發硏究 Vol.1 No.-

Generally, A numerical estimation of production in agriculture sector is made by production function, and indirect cost and profit function that apply the duality with production function. In our approach, Traditionally it is measured by production and indirect cost function. But, by utilizing the duality of production and indirect profit function, it also is possible. The parameters of profit function in estimating production function are 1. The parameters of production function can be efficiently measured. 2. Factor demand and supply function are directly derived from the UOP profit function. 3. It is possible to test the statistical hypotheses of constant return to scale, economic efficiency between farmer groups, and measure the variable input demand elasticities, output supply elasticities, and so on.

공터키안(Empty sella)을 동반한 급성췌장염으로 발현된 부갑상선 선종 1예

전언주,오지혜,배경륜,장샛별,전승운,정의달,손호상,원규장 영남대학교 의과대학 2009 Yeungnam University Journal of Medicine Vol.26 No.1

The incidence of coexisting hyperparathyroidism and empty sella syndrome is rare and the etiology and incidence of their coexistence is not known. The association of hyperparathyroidism and the empty sella syndrome may be related to multiple endocrine neoplasia (MEN) syndrome due to a genetic disorder. We experienced a rare case of hyperparathyroidism presenting as acute pancreatitis combined with empty sella. We report here a 37-year old female who manifested epigastric pain because of acute pancreatitis. She had hypercalcemia due to parathyroid adenoma. A pituitary gland was not visible in the sella turcica on MRI scans. On genetic analysis, she did not show a mutation of the MENIN gene. Empty sella is thought to be a coincidental finding with hyperparathyroidism.

혼파초지에서 질소시비수준과 방목율이 목초 및 육우생산에 미치는 영향

현봉수,김문철,김영호,송성언,이승협 제주대학교 농과대학 제주도축산문제연구소 1986 畜産論叢 Vol.1 No.1

Effects of N fertilizer levels and stocking rates on beef production in a mixed pastiire of orchard-grass, perennial ryegrass, tall fescue, red clover and alsike clover were studied using 3 levels of N fertilizer (50, 100 and 200 kg/ha) and 3 stocking rates (3,4 and 5 head /ha). The summarized results are the following; 1. Increasing nitrogen fertilizer on the mixed pasture increased dry matter yield and protein content(P<0.05) of the pasture species. The stocking rate did not influence either dry matter yield or protein content. 2. The percentage of pasture species increased and that of weeds decreased with increasing N fer-tilizer levels. lncreasing stocking rate from 3 to 5 heads/ha significantly influenced that of the other pastures and weeds. 3. Herhage intake per animal increased at the lower stocking rate, but total herbage intake per ha increased at the higher stocking rate, Increasing nitrogen fertilizer decreased herbage intake per animal , but slightly higher intake per animal was obserbed at 5 head stocking rate. 4. No significant difference in weight gain/ha was found among N levels and stocking rates ussd. Live weight gain per animal was greater at the higher N level and also at the louer stocking rate.

납유리 제조법의 연구

이민수,정홍석,임성팔,안도희,김광락,이성호,백승우,정해성,조연구 한국공업화학회 2003 응용화학 Vol.7 No.1

In this paper, the composition of lead glass was studied to lower the melting temperature. The composition of lead glass was silica, lead monoxide, sodium hydroxide, and other metal oxides which were blended in alkaline aqueous solution. The blend was dried and melted to produce transparent glass material. Using the composition suggested in this paper, it was possible to manufacture transparent lead glass easily at 700~900 ℃. And the dried bled material had very low softening temperature around 200℃ which can be applied in inorganic adhesives.

Transmission of Synucleinopathies in the Enteric Nervous System of A53T Alpha-Synuclein Transgenic Mice

Lee, He-Jin,Suk, Ji-Eun,Lee, Kyung-Won,Park, Seung-Hwa,Blumbergs, Peter C.,Gai, Wei-Ping,Lee, Seung-Jae The Korean Society for Brain and Neural Science 2011 Experimental Neurobiology Vol.20 No.4

<P>Parkinson's disease (PD) and dementia with Lewy bodies (DLB) are characterized by abnormal deposition of α-synuclein aggregates in many regions of the central and peripheral nervous systems. Accumulating evidence suggests that the α-synuclein pathology initiates in a few discrete regions and spreads to larger areas in the nervous system. Recent pathological studies of PD patients have raised the possibility that the enteric nervous system is one of the initial sites of α-synuclein aggregation and propagation. Here, we evaluated the induction and propagation of α-synuclein aggregates in the enteric nervous system of the A53T α-synuclein transgenic mice after injection of human brain tissue extracts into the gastric walls of the mice. Western analysis of the brain extracts showed that the DLB extract contained detergent-stable α-synuclein aggregates, but the normal brain extract did not. Injection of the DLB extract resulted in an increased deposition of α-synuclein in the myenteric neurons, in which α-synuclein formed punctate aggregates over time up to 4 months. In these mice, inflammatory responses were increased transiently at early time points. None of these changes were observed in the A53T mice injected with saline or the normal brain extract, nor were these found in the wild type mice injected with the DLB extract. These results demonstrate that pathological α-synuclein aggregates present in the brain of DLB patient can induce the aggregation of endogenous α-synuclein in the myenteric neurons in A53T mice, suggesting the transmission of synucleinopathy lesions in the enteric nervous system.</P>

Synthesis of Ladder-Like Polysilsesquioxane with Well-Defined Graft Polymers

Choi, Seung-Sock,Lee, Albert S.,Lee, He Seung,Choi, Dong Hoon,Hwang, Seung Sang,Baek, Kyung-Youl Informa UK (TaylorFrancis) 2011 Molecular Crystals and Liquid Crystals Vol.539 No.1

운전자 선호도를 고려한 고속도로 터널 내 조명디자인의 조형특성 연구

한승희 ( Seung He Han ),박억철 ( Eok Chul Park ) 한국기초조형학회 2014 기초조형학연구 Vol.15 No.2

한국도로공사에서는 2010년부터 운전자의 안정성 향상을 위한 목적으로 장대터널에 대한 유형별 조명디자인 설계안을 마련하여 운영하고 있다. 이에 따라 터널 내 조명디자인에 대한 운전자 선호도 및 안전성에 영향을 미치는 조형 설계요소를 도출하였다. 연구의 진행은 터널 조명디자인의 조형특성에 따른 유형을 선정하고, 동일한 조건의 터널 내부 환경에서 조명디자인의 유형별 실험사진을 작성하였다. 운전자를 대상으로 설문조사를 실시하여 조명디자인의 조형특성별 운전자의 선호도를 조사하였다. 설문조사는 5점 리커트 척도로 진행되었으며, 설문조사의 내용을 바탕으로 분산분석, 요인분석, 회귀분석을 수행하였다. 연구의 결과는 다음과 같다. 첫째, 조명디자인의 조형특성(노출, 간접, 문양조명)에 따른 운전자의 경관선호도는 긍정적 측면에서 전체평균이 3.28로 비교적 높게 나타났다. 이중에서 문양조명이 3.47로 가장 높게 나타났으며, 긍정적 평가에는 ``잘 보인다``, ``흥미롭다``, ``특이하다`` 등이 우세한 영향을 미치는 것으로 확인되었다. 둘째, 운전자의 주행감에 영향을 미치는 요인은 ``특이성``과 ``질서`` 또는 ``정연함`` 및 ``가시성``으로 나타났다. 셋째, 운전자의 주행시 ``안전성``에 가장 영향을 미치는 요인은 ``질서`` 또는 ``정연함``으로 파악되었다. ``질서`` 또는 ``정연함``은 ``복잡성``, ``지저분함``, ``자극성``, ``수량`` 등과 상관성이 있으며, 이는 특화조명의 설계 및 시공시 우선적으로 특화조명의 설치위치, 수량, 밝기 등이 고려되어야 함을 시사한다. 따라서 본 연구는 운전자의 선호도를 고려한 고속도로 터널 조명디자인의 설치의도와 그 효용성에 대해 검증해 보았다는 것에 그 의의가 있다. Korea Expressway Corporation is running the manual of lighting designs in expressway longitudinal tunnel that classified by types for the purpose of improving driver`s safety from 2010. Therefore, this study evaluated driver preferences about lighting designs in expressway longitudinal tunnel and drew design elements that affect driver`s safety. After selecting the type of tunnel lighting design, we completed test pictures in each type of lighting design in the same condition of internal tunnel environment. Based on the survey conducted for drivers, their preference for each type of lighting was researched. The survey followed the 5-point Likert Scale. Based on the contents of the survey, we carried out analysis of variance, factor analysis and regression analysis. The results of the study are like following. First, drivers` preference on scenery in accordance with the type(exposure, indirect, patterned lighting) of lighting design was shown relatively high as 3.28(total average) in the positive aspect. Among them, the patterned lighting was the highest(3.47), and its positive evaluation included ``excellent visibility``, ``interesting``, and ``unique`` that would have positive influence. Second, the factors that would have influence on drivers` sense of driving included ``peculiarity``, ``order``, or ``measuredness`` and ``visibility``. Third, we found that the most influential factor on ``safety`` during driving was ``order`` or ``measuredness``. The ``order`` or ``measuredness`` is correlated with ``complexity``, ``messiness``, ``irritation`` and ``quantity``, which suggests what should be considered preferentially when designing and building specialized lighting. This study verified the intention to install and its utility of specialized lighting by understanding the influence of lighting design in highway tunnel. It is also significant that it has shown a design direction of lighting to build up pleasant and safe driving environment inside of tunnel, considering drivers` preference.

High photo- and electroluminescence efficiencies of ladder-like structured polysilsesquioxane with carbazole groups

Choi, Seung-Sock,Lee, He Seung,Hwang, Seung Sang,Choi, Dong Hoon,Baek, Kyung-Youl Royal Society of Chemistry 2010 Journal of materials chemistry Vol.20 No.44

<P>Ladder-like structured polysilsesquioxane with carbazole groups showed unexpected high photo- and electroluminescence efficiencies both in solution and solid states due to its rigid silicone ladder structures, which efficiently isolated the carbazole groups and thus suppressed their excimer formations by inter- and intramolecules.</P> <P>Graphic Abstract</P><P>Ladder-like structured polysilsesquioxane with carbazole groups showed unexpected high photo- and electroluminescence efficiencies both in solution and solid states due to its rigid silicone ladder structures, which efficiently isolated the carbazole groups and thus suppressed their excimer formations by inter- and intramolecules. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0jm02561e'> </P>

Variety of Food Choices is Associated with the Nutritional Quality of Diets of College Students in Korea

Kye, Seung-He,Suh, Hee-Jae,Kim, Bok-Hee The Korean Society of Food Science and Nutrition 2005 Preventive Nutrition and Food Science Vol.10 No.4

This study was performed to evaluate effects of dietary variety scores (DVS) and dietary diversity scores (DDS) on the nutritional quality of the diets of Korean college students, and to examine the association between food group intake patterns and nutritional adequacy. This study examined the relationship of dietary diversity scores (DDS), dietary variety scores (DVS), and food group intake patterns with nutrient intakes using 24-hour recall data (n=.358). The .DDS was calculated from the sum of each of the five food groups consumed as a score of 'I'. DVS was determined by counting the number of food items consumed daily. Food group intake patterns were expressed with the presence or omission of five major food groups-dairy, meat, grain, fruit, and vegetable. The four most prevalent food group patterns and the proportion of the population reporting them were as follows; no dairy and fruit, $23\%;\;no\;dairy,\;20\%;$ no dairy, meat, and fruit, $15\%$; all food groups, $14\%$. Even though the DDS or DVS was higher, the majority of this study population failed to meet the Korean RDA for calcium in both genders and iron in women. Higher DVS scores $(\geq31)$, within all DDS groups, were associated with the largest proportion of individuals consuming more than $75\%$ of the Korean RDA for selected nutrients. The consistency of these results indicates that screening diets to evaluate the overall dietary variety and variety among the major food groups including food group intake patterns provide meaningful information about their quality.