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論文(논문) : 무인항공기 자동이착륙을 위한 레이다 비콘 시스템의 추적필터 설계
김만조 ( Man Jo Kim ),황치정 ( Chi Jung Hwang ) 한국항공운항학회 2013 한국항공운항학회지 Vol.21 No.1
This paper presents a tracking filter of radar beacon system (RBS) for automatic takeoff and landing of an unmanned aerial vehicle. The proposed tracking filter is designed as the decoupled tracking filter to reduce the computational burden. Also, an adaptive estimation method of the measurement error covariance is proposed to provide an improved tracking performance compared to the conventional decoupled tracking filter whenever the accuracy of RBS observations is degraded. 100 times Monte Carlo runs performed to analyze the performance of the proposed tracking filter in case of normal operation and degraded operations, respectively. The simulation results show that the proposed tracking filter provides the improved tracking accuracy in comparison with the conventional decoupled tracking filter.
임상연구 : 부분마취 환자에서 수술 중과 수술 후의 음악이 수술 후 불안과 긴장 완화에 미치는 영향
김만조 ( Man Jo Kim ),이동준 ( Dong Jun Lee ),한미애 ( Mi Ae Han ),하경호 ( Kyoung Ho Ha ),김문철 ( Moon Chul Kim ),조강희 ( Kang Hee Joh ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.50 No.4
Background: Music influences the body and mental well-being of humans. Almost all patients undergoing surgery experience perioperative anxiety. This study was designed to determine the effect of music during surgery and the post-operation period under regional anesthesia on the level of anxiety, relaxation and fatigue. Methods: Sixty-four patients who underwent orthopedic surgery under regional anesthesia were randomly assigned to Group 1 (listening to music) and Group 2 (no music). The premedication and anesthesia were standardized for both groups. The level of anxiety, fatigue and psychological well-being were examined as outcome variables. Results: The level of anxiety and psychological well-being was significantly lower (anxiety:P = 0.012, psychological well-being:P = 0.006) in Group 1 than in Group 2. The level of fatigue was similar in both groups. Conclusions: The results suggested that music might be effective in reducing the level of intra and post-operative anxiety and improving the psychological well-being of patients undergoing surgery under regional anesthesia. (Korean J Anesthesiol 2006; 50: 444~8)
김만조 ( Gim Man Jo ),이욱 ( Lee Ug ),황명수 ( Hwang Myeong Su ),김선창 ( Kim Seon Chang ),이문호 ( Lee Mun Ho ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.4
This study was conducted to provide basic data for chestnut breeding program and the morphological identification system of chestnut cultivars using Korean prevailing chestnut cultivars. European and Chinese chestnut cultivars. There were significant differences among cultivars in blooming time. Cultivars derived from Chinese chestnut showed later blooming patterns than Japanese chestnut cultivars. In most of cultivars, the full blooming period of pistillate flower considered to be optimum for pollination was about 4 days. In the fructification rate, `Tsukuba` showed highest(82.1%), while `Tono 2` was lowest(34.5%). In the optimum harvesting time, the early-maturing cultivar `Moriwase` was earliest at 1 September, while the late-maturing cultivar `Banseki` latest at 13 October. The harvesting period showed significant differences among cultivars, and `Tanzawa`, `Otanba` and `Hamjongyul` were shortest(8 days), while‘Riheiguri` and `Tsukuba` were longest(〉2 weeks). Soluble solids content of nut measured immediately after harvest varied between 9.6% in `Isseumo` to 22.2% in `Hamjongyul`. Nearly cultivars derived from Chinese chestnut showed higher values than Japanese chestnut cultivars in soluble solids content, and nut hardness was similar to soluble solids content. With respect to percentage of polyembryonic nuts, most of cultivars were below 5%, but `Tono 2` was highest(11.2%) resulted in depreciating market values. Percentage with the pericarp split was below 5% in most of cultivars, but `Daab` was highest(32.4%) inferior to other cultivars The UPGMA dendrogram based on nut characteristics was devided into three groups in genetic distance 1.0, and `Hamjongyul`, `Pyungyangyul` and `Cheonjinyul` were distinguished from other cultivars
김만조,박윤미,박상병,황석인 한국산림과학회 2013 Forest Science And Technology Vol.9 No.2
The cultivation of wild greens under the conventional culture system has been increasing in Korea, but the production cost is high and the quality of the products’ flavor and aroma is not as good as that of uncultivated wild plants. Thus, cultivation of wild greens in a forest farming system is an attractive alternative to wild harvesting, due to its much lower production cost compared with conventional cultivation, and its provision of a second income to the landowner. Yet little is known about the conditions that would maximize the growth of wild greens in a forest farming system. Thus, this study was conducted to evaluate the optimal conditions that would maximize the yield of Ligularia fischeri (Ledeb.) Turcz., which is being cultivated in three forest farming systems in Korea. After the fibrous roots of L. fischeri were planted in hardwood forests, the environmental conditions therein were measured, including the relative light intensity, soil moisture content, and plant growth characteristics such as the survival rate, total number of leaves, and leaf width. The results showed that the light intensity and tree density in such sites were significantly correlated with the leaf growth. It is thus suggested that the 20–40% light transmittance that was measured in the open field is the optimal condition for the growth and yield of L. fischeri in a forest farming system. The results of this study can help formulate a management plan for when thinning practices should be performed, to establish a forest farming system and to maintain a suitable tree density for the cultivation of wild greens.