본 시험은 동계작물인 쌀보리의 알곡에 대한 사료로서의 활용도를 제고하고자 미생물 분포를 분석하고, 발효과정 중 이화학적 및 미생물학적 특성의 변화 분석을 통하여 효 과적인 발효사료 제조방법을 제시하고자 수행하였다. 즉, 수확된 쌀보리 종실에 시판 생균제를 기준에 맞게 접종한 후 공기와 접촉하지 않도록 밀봉하여 37℃에서 7일간 발 효를 통해 쌀보리 종실의 저장성과 안전성을 증진시킬 수 있다. 쌀보리 종실 자체에 Staphylococcus속과 Bacillus속의 미 생물들이 다수 존재하여 자연발효의 가능성이 있음을 보여 주었다. 또한 생균제를 접종하지 않은 쌀보리 종실도 기간 이 경과됨에 따라 산도가 저하되고 유산균 수가 증가하여 발효가 이루어지고 있는 것으로 나타났다. 그러나 쌀보리 종실에 생균제를 접종하였을 경우, 발효 7일차에 pH가 4.33±0.02로 발효가 더 빨리 진행되었으며, 유산균의 수도 전체 발효기간 동안 미 접종 대조구에 비해 높게 유지되었 으나, 효모의 수에 있어서는 차이가 나타나지 않았다. 발효 에 의해 쌀보리 종실의 산도가 저하됨에 따라 초기 107 cfu/g 이상 검출되었던 대장균이 발효 7일차 이후부터는 전 혀 검출되지 않아 발효가 쌀보리 종실의 안전성을 유지시 키는 데 있어 효과적인 저장방법으로 나타났다.

This study was conducted to evaluate the chemical composition and physico-chemical meat quality properties for Jeju-horse (Jeju-horse×Thoroughbred) with different fattening periods (4-, 8- and 13.5-month). In chemical composition, the moisture contents were decreased as the fattening periods increased. The fat contents were 3.78% at 4-months and they were decreased such as 70∼76% at 13.5-months whereas the protein contents increased as the fattening period increased. The cooking loss was highest (33.41%) at 4-months group and decreased after that periods, however, there was no significant difference among 3 fattening period groups. The Warner-Bratzler shear force (WBS) values were lowest at 4-months group and tended to increase as the fattening period increased. In mineral contents, the contents of Fe, Na, Zn were significantly higher for 4-month group than 8- and 13.5-month group whereas the contents of Mg were significantly lower for 4-month group than 8- and 13.5-month group (p＜0.05). The results of the amino acid composition analysis showed that cystein, methionine, threonine, serine, glutamic acid, alanine, valine, lysine, histidine, arginine contents were significantly increased and tyrosine contents were significantly decreased as the fattening period increased (p<0.05). The contents of palmitic acid (C16:0) were highest at 4-month group and they decreased as the fattening period increased (p＜0.05). The contents of oleic acid (C18:ln9) were highest at 8-month group and they were lowest at 13.5-month group. The total contents of unsaturated fatty acids were significantly higher for 13.5-month group than those for 4-month groups (p＜0.05). In conclusions, the fat contents were decreased whereas the protein, Fe, Mg contents and WHC increased as the fattening periods increased. Overall contents of amino acids increased only except several amino acids. The total contents of unsaturated fatty acids were increased as the fattening period increased, however they were not significantly different when those were fattened more than 8-month. These results indicated that longer fattening period could be more effective to enhance horse meat quality.

본 연구에서는 대관령 지역에서의 광학우적계(PARSIVEL disdrometer) 강수관측으로부터 산출된 강수율에 따른 강수입자분포 자료를 바탕으로 기존의 강수입자분포 모형을 개선하였다. 선행 연구에서 제안한 다양한 강수입자분포 모형과 측정 자료와의 상관성을 분석한 결과, 대관령 지역에 적용 가능한 원형 모형은 개선된 γ 분포 모형임을 확인하였다. 원형 모형을 대관령 지역에 적용할 수 있도록, 민감도 실험을 통해 최적의 매개변수들(α, A, B)을 산정하였으며, 다섯 가지 강수율에 대한 강수입자분포 모형을 제안하였다. 강수율에 따른 강수입자분포 모형의 결과는 관측에서 측정된 값과 높은 상관성(R2=0.975)을 보였다. 강수율에 따라 표현되는 강수입자분포 모형을 일반화 형태로 개선하기 위해 강수율과 매개변수의 상관성을 도출하여 일반식을 결정하였다. 일반화된 강수입자분포 모형은 대관령 지역의 강수입자분포 측정 자료와 높은 상관성(R2=0.953)을 보였으며, 이는 본 연구에서 제안한 모형이 대관령 지역의 강수입자분포를 모의하는데 효과적임을 의미한다. 그러나 본 연구에서 제안된 강수입자분포 모형은 대관령 지역의 강수입자분포에만 최적화 되었다는 한계성이 있어, 따라서 한반도를 대표하는 모형을 개발하기 위해서는 다른 지역에 대한 광범위한 측정이 필요하다.

This study was carried out to investigate the residual sulfur dioxide residues (SO2) in commercial medicinal herbs in Korea in 2013. Among a total of 116 samples of 11 different kinds of herbs, 71 samples (11 Kinds) were domestic, and 45 samples (10 Kinds) were imported. The residual contents of SO2 in the samples were determinated by a modified Monier-Williams method. Of the 116 samples, 6 samples (5.2%, 4 Kinds) failed to meet the regulations for sulfur dioxide residues of KFDA in medicinal herbs. Among 6 unsuitable samples, 1 samples (1.4%) were domestic, and 5 samples (11.1%, 3 Kinds) were imported. The highest amount of sulfur dioxide residues was 1546.3 mg/kg (Lycii Fructus) in the domestic samples. Regardless of region, SO2 contents were not found at Anemarrhenae Rhizoma, Citri Unshius Pericarpium, Eucommiae Cortex, Forsythiae Fructus, Gardeniae Fructus, Leonuri Herba and Lonicerae Folium et caulis. These data will be used as a basic data for the future legislation on the regulation and control of sulfur dioxide of herbal medicines.

This study was conducted to determine the growth performance and carcass characteristics of fattening Hanwoo heifers slaughtered at different ages. Twenty one Hanwoo heifers were randomly allocated to three groups (32, 36 and 40 months age), with 7 steers each, respectively. In the result, initial and final body weights were 125.6 and 651.0 kg, respectively. Average daily gain was significantly low at final stage compared with other growth stages (p<0.05). Dry matter intake was the peak at the intermediate fattening stage (p<0.05). The feed conversion ratio was significantly lower at growing stage compared to other stages (p<0.05). In yield traits, carcass weight was greater in 40 months age group compared to other groups (p<0.05). Yield index was greater in 32 months group compared to 40 months of age (p<0.05). Marbling score, meat color, fat color, texture, and maturity were not different among groups (p>0.05). However, marbling score tended to be increased in 40 months age group (5.9) compared to other groups. The appearance rate (%) of meat quality grade more than 1+ was greater at 40 months old group than other groups.

Location-Based Service(LBS) is a service that provides a variety of convenience in life using location information that can be obtained by mobile communication network or satellite signal. In order to provide LBS precisely and efficiently, we have to need technologies such as location determination technology, platform technology and server technology first. In this study, we studied on how we can reduce the error on location determination of objects such people and things. Fingerprint location determination method was applied to this study because it can be used at current wireless communication infrastructure and less influenced by a variety of noisy environment than other location determination methods. We used the time of arrival(ToA) method in fingerprint location determination method. In order to confirm the performance of suggested method, we developed location determination test program with LAbVIEW 2010 and performed the test. According to indoor test results, the suggested method reduced the distance error by 24%, 34% and 19% respectively at indoor environment compared with deterministic kWNN and Rice Gaussian fingerprint methods.

본 연구는 수확시기에 따른 사일리지용 옥수수의 생육특성을 구명하고자 2010년 4월 19일 파이오니아 31N27 품종을 수원 지방에 파종하였다. 7월 10일부터 9월 20일까지 10일 간격으로 수확하여 건물률과 수량조사를 하였다. 경엽의 건물률은 수확시기가 늦어질수록 꾸준히 증가하다가 9월 10일 가장 높은 58.5%를 보였고 그 이후에는 감소하였고(p < 0.05), 암이삭의 건물률은 직선적으로 증가하였으며 전체 건물률도 지속적인 증가를 보였으며(p

The present study was performed to determine beneficial effects of donkey meat extract supplementation (15 and 30 mg/kg B.W.) on streptozotocin (STZ) induced diabetic rat. Rump muscle of donkey was extracted by boiling in water for 3 hrs and supplemented to STZ induced diabetic rats for 6 weeks. Feed and water intake of STZ induced diabetic rats were higher than those of normal rats, while no significant difference was found in DME treated rats as compared to the rats in control group. STZ-induced diabetic rats did not improved their body weight as compared to that of rats in the control group. However, blood glucose level of 30 mg DME supplemented rats was found to be significantly reduced after 4 weeks of supplementation (p<0.05) when compared to the control animals. Administration of DME did not show any improving effect on serum lipids (HDL-cholesterol, total cholesterol, and triglyceride). No significant changes were noticed in terms of weight of all the visceral organs of animals fed on DME except liver. It is therefore, concluded that supplementation of DME with dose of 30 mg/B.W. resulted in decreased blood glucose levels, however, blood lipid profile of diabetic rats, having more than 400 mg/dl glucose level, did not change.

We have been making dual dome enclosures which are useful to track artificial space objects at SSNT (Space Science and Technology Lab.) Kyung Hee University. We verified the safety of the dome enclosures using basic design and structure analyses before manufacturing them, and then performed an optimization analysis for economic and safe systems. The dome enclosure has a fully-open type structure to smoothly operate a telescope made in the style of altazimuth mount with very fast tracking. It is also designed to be safe against extreme weather conditions. The general structure of the observatory system consists of the dual dome enclosures at the top of a container. For the structural analyses, we consider the following two methods: (1) gravitational sustain analysis - how the structure supporting the dome withstand the weight of the dome, and (2) wind load analysis that considers the effect of the wind velocity at the region where the observatory is located. The result of overall deformation is found to be less than 0.551mm and the result of equivalent stress is found to be 20.293Mpa, indicating that the dual dome system is reasonably designed. This means structurally to be safe.

본 논문은 PDP TV에서 주위 환경을 고려한 색 재현 방법을 제안한다. 관찰자의 시공간적인 위치에 따 라 주변 환경이 변하기 때문에, 디스플레이의 색 재현 과정에서 주위 조명은 반드시 고려되어야 한다. 주변 환경을 고려하기 위한 기존의 방법은 각 채널에서 전압의 이득을 조절함으로써 계조와 포화도를 향상시키기 때문에 인간의 순응 현상을 구현하는데 한계가 있으며, 이에 따라 다양한 주위 조건하에서 인지된 색을 재현하는데 어려움이 있었다. 따라서 이를 해결하기 위해, 본 논문은 PDP의 물리적 특성인 플레어 현상을 고려하였으며, 밝기에 기반하여 특성화 과정을 수행하였다. 또한, 센서로 획득된 주위 조명의 색온도 및 밝기값의 정보를 이용하여 색 순응현상을 적용하였다. 특히 암실에서는 색순응 현상을 적용함으로써 저전력 구동이 가능하였으며, 실험을 통해 제안한 방법이 기존의 방법에 비해 시각적 평가에서 더 우수함을 확인하였다.

Even though 30inch optical telescope at Kyung Hee Astronomy Observatory has been used to produce a series of scientific achievements since its first light in 1992, numerous difficulties in operating of the telescope have hindered the precise observations needed for further researches. Since the currently used PC-TCS(Personal Computer based Telescope Control System) software based on ISA-bus type is outdated, it doesn't have a user friendly interface and make it impossible to scale. Also accumulated errors which are generated by discordance from input and output signals into a motion controller required new control system. Thus we have improved the telescope control system by updating software and modifying mechanical parts. We applied a new BLDC(brushless DC) servo motor system to the mechanical parts of the telescope and developed a control software using Visual Basic6.0. As a result, we could achieve a high accuracy in controlling of the telescope and use the user friendly GUI(Graphic User Interface).

An alt-azimuth type mount system, developed at the Space Science and Technology Laboratory, Kyung Hee University, has been found to experience some difficulties in monitoring of the artificial space objects. Since the telescope installed on the alt-azimuth mount does not rotate on the same axis as the earth does, this mount system needs an instrument rotator to correct the field rotation. Although there are some commercial instrument rotators already in the market, those are not suitable for our system due to their low interchangeability. In this study, we have designed a new high speed instrument rotator and calculated the deformation of new designed system using structural analyses.

  This study is provide information in the development of energy conservation technologies by means of technological demand survey covering energy market and industrial field among energy-related technologies.   For this purpose, we check both the present