http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장한울, 김병로 충북대학교 농업과학기술연구소 2014 農業科學硏究 Vol.30 No.2
Relationship between growth rate and wood properties was investigated by water absorption and hygroscopic properties with Alnus glutinosa L. from 4 different origin of seed (Bulgary, Italy, United Kindom, Yugoslavia). In cross sectional water absorption. there was difference among different origin of seed and higher growth rate led to higher water absorption as 0.62~2.82 g/cm2 ranges with average 1.81 g/cm2. In equilibrium moisture content (EMC) at temperature 40oC relative humidity(RH) 75%, there was difference among different origin of seed and higher growth rate led to higher EMC as 12.32 ~13.16% ranges with average 12.65%. EMC at temperature 40 RH 90%, there was difference among different origin of seed and higher growth rate led to higher EMC as 29.01~34.15% ranges with average 30.32%. In cross sectional moisture absorption at 24 h treatment. there was no difference among different origin of seed and different growth rate as 0.031~0.041% ranges with average 0.036 g/cm2
Test strip과 Chlorophyll meter를 이용한 토마토의 신속한 영양진단
김권래,정한울,김계훈 한국농화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.2
본 연구는 지금까지 제시된 여러 가지 간이 식물영양 진단 방법들 중 test strip과 chlorophyll meter의 이용가능성을 검토하고 실제 이용 방안을 모색하고자 수행되었다. 본 실험에서는 양액의 N, P, K 수준을 달리하여 토마토를 재배하면서 생육시기별로 specific color difference sensor value(SCDSV), 엽병 즙액 중 NO_3, PO_4, K의 함량을 측정하였다. 실험 결과 N, P, K 함량의 변화보다 더 민감하였다. Test strip을 이용하여 측정한 토마토 엽병 즙액 중 NO_3, PO_4, K함량 변화가엽 중 total-N, P, K의 농도와 고도의 일차상관관계를 나타내었다. 지금까지 여러 연구를 통해 확립된 토마토의 엽 중 total-N, P, K의 적정 함량을 희귀식에 대입하여 구한 즙액의 적정 NO_3, PO_4, K의 함량은 각각 3.4~5.9, 0.3~0.5, 3.6~6.5 g/l였다. Chlorophyll meter를 이용하여 측정한 SCDSV는 엽 중 total-N 함량을 희귀식에 대입하여 계산한 결과 적정 SCDSV는 36.0~40.0이었다. 본 연구 결과 test strip과 chlorophyll meter는 토마토의 신속한 영양 진단에 이용 할 수 있을 것으로 판단된다. This study was performed to develop a more rapid and simple nutrient diagnosis method of plants than the conventional leaf analysis method. Tomato (Lycopersicon esculentum Mill. cv. super momotaro) was planted in the mixed media produced by nidxing perlite and rock wool at I : I (v/v) ratio. The Yamazakki nutrient solutions for cucumber and tomato were supplied to the media using the rnicro-drip irrigation system. Experimental plots produced consisted of no fertilization, deficient fertilization, adequate fertilization and surplus fertilization for N, P and K, respectively. Each experimental plot was replicated four times. Specific color different sensor values (SCDSV) measured by the chlorophyll meter were closely related to total-N concentrations in the leaves measured by the conventional method. Nitrate, PO, and K concentrations in petiole sap measured by test strips (Reflectoquant, Merck, Germany) showed a significant relationship with total-N, P and K concentrations in leaves. The linear regression equations between NO,, PO, and K concentrations in petiole sap and total-N, P and K concentrations in the leaves were prepared. The optimum levels of NO,, PO, and K in petiole sap were obtained by plugging the optimum concentrations of total-N, P and K in the leaves by other researchers into the equations. In conclusion, the SCDSV by the chlorophyll meter and concentrations of NO,, P and K in petiole sap measured by the test strips would be suitable for rapid estimation of plant nutrient status.
Seroprevalence of the bovine leukemia virus among Korean native cattle in South Korea
Han-Ul Kim,Eun-Yong Lee,Kyoung-Ki Lee,Seong-Hee Kim,Bo-Youn Moon,Byung-Jae So,Yeon-Hee Kim 한국예방수의학회 2017 예방수의학회지 Vol.41 No.1
Bovine leukemia virus (BLV) is the causative agent of enzootic bovine leukosis. This study was conducted to clarify the seroprevalence of BLV in the Republic of Korea. Blood samples were obtained from Korean native cattle farms in all provinces of South Korea except Jeju. A commercial indirect enzyme-linked immunosorbent assay with 4,498 samples to detect antibodies against BLV was conducted. The results revealed that the prevalence of BLV was dependent upon age, with increasing prevalence among cattle occurring until they were 5 years old. The highest seroprevalence in cattle was observed in Chungnam (29.6%) and the lowest was observed in Jeonnam (2.6%). The mean overall prevalence for BLV antibodies in the survey was 10.2%, indicating that BLV is widespread nationwide.
Han Ul Yoon,Dong-Wook Lee 한국지능시스템학회 2018 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.18 No.4
This paper proposes a subplanner algorithm, which will be referred to as attractive force rotation and restoration, to compensate the local minima problem under the artificial potential based planner. The key role of the proposed subplanner is to build a navigating path for escaping from the local minima by rotating and restoring the attractive force. A mobile manipulator was adopted as our robotic application to substantiate the capability of the proposed subplanner under various simulation scenarios in which the mobile manipulator finds a path to a target object without collision against stationary/moving obstacles. The simulation results substantiated that the compensated artificial potential based planner successfully found a path to guide the mobile manipulator to the target object in the presence of the local minima.
Locator-Checker-Scaler Object Tracking Using Spatially Ordered and Weighted Patch Descriptor
Han-Ul Kim,Chang-Su Kim IEEE 2017 IEEE TRANSACTIONS ON IMAGE PROCESSING - Vol.26 No.8
<P>In this paper, we propose a simple yet effective object descriptor and a novel tracking algorithm to track a target object accurately. For the object description, we divide the bounding box of a target object into multiple patches and describe them with color and gradient histograms. Then, we determine the foreground weight of each patch to alleviate the impacts of background information in the bounding box. To this end, we perform random walk with restart (RWR) simulation. We then concatenate the weighted patch descriptors to yield the spatially ordered and weighted patch (SOWP) descriptor. For the object tracking, we incorporate the proposed SOWP descriptor into a novel tracking algorithm, which has three components: locator, checker, and scaler (LCS). The locator and the scaler estimate the center location and the size of a target, respectively. The checker determines whether it is safe to adjust the target scale in a current frame. These three components cooperate with one another to achieve robust tracking. Experimental results demonstrate that the proposed LCS tracker achieves excellent performance on recent benchmarks.</P>
Seroprevalence of the bovine leukemia virus among Korean native cattle in South Korea
Han-Ul Kim,,Eun-Yong Lee,Kyoung-Ki Lee,Seong-Hee Kim,Bo-Youn Moon,Byung-Jae So,Yeon-Hee Kim 한국예방수의학회(구 한국수의공중보건학회) 2017 예방수의학회지 Vol.42 No.1
Bovine leukemia virus (BLV) is the causative agent of enzootic bovine leukosis. This study was conducted to clarify the seroprevalence of BLV in the Republic of Korea. Blood samples were obtained from Korean native cattle farms in all provinces of South Korea except Jeju. A commercial indirect enzyme-linked immunosorbent assay with 4,498 samples to detect antibodies against BLV was conducted. The results revealed that the prevalence of BLV was dependent upon age, with increasing prevalence among cattle occurring until they were 5 years old. The highest seroprevalence in cattle was observed in Chungnam (29.6%) and the lowest was observed in Jeonnam (2.6%). The mean overall prevalence for BLV antibodies in the survey was 10.2%, indicating that BLV is widespread nationwide.
A Miniaturized Aperture-Coupled Multilayer Hairpin Bandpass Filter
Han-Ul Moon,Seung-Un Choi,Sang-Won Yun 한국전자파학회JEES 2008 Journal of Electromagnetic Engineering and Science Vol.8 No.1
In this paper, we introduce a coupling, which is achieved through the aperture instead of the conventional edge coupling, so that the bandpass filter is reduced less than half in size compared to conventional planar type. The resulting filter configuration has a near two-fold symmetry, where the aperture coupling is used in the middle of the coupling stages. We designed a bandpass filter using two tapped hairpin resonators, of which the order becomes four. The designed bandpass filter has the size of 8.9×18.3 ㎜. It has the return loss better than 17 ㏈ and the insertion loss of less than 5 ㏈ in overall passband. The measured results show good agreements with simulated ones.