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Analysis of monitoring Road-kill in Odaesan National Park
Sang Jin Lim,Ki Yoon Kim,Woo Chan Lim,Hyeong Woo Ji,Baek Soon Choi,Tae Il Kim,Hyo Nam Kim,Ji Hong Min,Hey Ri Kim,Eui Kyeong Kim,Yung Chul Park 강원대학교 산림과학연구소 2017 강원대학교 산림과학연구소 학술대회 Vol.2017 No.11
We surveyed mammalian roadkill at the National Route 6 (Jin-gogae to Songcheon, 18㎞) and a local road 446 (Odaesan National Park office to Sangwon-temple, 12㎞) in Odaesan National Park. Data of the surveys were analyzed by year, month, and species. Roadkills of 226 individuals were found at the survey areas. Of them, the road-killed 131 mammal individuals, 44 bird individuals, 40 reptile individual and 11 amphibian individuals were found during the survey period. High ratio of the road-kills was observed in mammals than the other animals. Among mammalian species, high ratio of the road-kills was observed in squirrels. There were road-kills of three endangered species, containing otters, yellow-throated marten and leopard cats. According to the analyses of annual road-kills, roadkills of 104 cases were occurred and highly frequent in 2014, following by roadkills of 81 cases in 2015, and then those of 41 cases in 2016. Most ases of the roadkills occurred in summer (June to September). The results will contribute to establishing management for reduction of roadkill in Odaesan National Park.
광막센싱방법을 이용한 미소물체의 계수검출 : 하드웨어 개선과 소프트웨어
조시형,박찬원 강원대학교 정보통신연구소 2008 정보통신논문지 Vol.12 No.-
In this paper, hardware improvement and software of tile light screen sensing system is introduced and tested to detect small grains such as seeds or electronic chips of uneven sired. Two modules composed of a transmitter-receiver sensor array and a microprocessor-based sensor signal processing system are developed to realize the proposed system. As a result, the sensing signal waveform was relatively improved than the previous machine's and its counting error was within the range of 0.01% in case of normal seeds counting.
조시형,박찬원 江原大學校 産業技術硏究所 2007 産業技術硏究 Vol.27 No.B
In this paper, the light screen sensing system is introduced and testified to detect small grains such as seeds or electronic chips of uneven sized. Two modules composed of transmitter-receiver sensor array and microprocessor-based sensor signal processing system are developed to realize the proposed system. Experimental results showed that the sensing signal was relatively clear and its counting performance was very stable.
조시형,박찬원 江原大學校 産業技術硏究所 2009 産業技術硏究 Vol.29 No.B
This paper presents the development of smart counting system that is proper for grains with uneven unit weight or shape. This device can detect the small differences of a light beam and count the pulse from wave shape control, when the grain is going on the light screen, which is made by the light beam screen sensor. It can, different from the former conventional device, distinct the uneven grains for counting detect, by using the dedicated hardware and the software algorithm of the light sensor.
상악동에 발생한 거대한 Cholesterol 육아종 1례
김승찬,박형욱,김용기,나한조,도남용 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1
The cholesterol granuloma is not a specific clinical or pathologic entity but merely a term used to describe a tissue response to cholesterol crystal. The cholesterol granuloma in paranasal sinuses is rare disease. Recently the authors had experienced a case of huge cholesterol granuloma, which involved the right maxillary sinus. The cholesterol granuloma was removed successfully by mean of enucleation through the Caldwell-Luc approach. So, we report a case with brief review of the literature.
조시형,박찬원 江原大學校 産業技術硏究所 2010 産業技術硏究 Vol.30 No.A
This research suggested a development of a Data Acquisition System for strain gauge sensor which enables the usage of portable device in the various engineering field that includes, a strain indicator which is frequently used in civil and mechanical engineering, and a GUI function of data acquisition device. The developed system can record 16 channels of strain gauges at a time and its resolution is over 16 bits which can be used effectively in the actual field.
조시형,박찬원 江原大學校 産業技術硏究所 2010 産業技術硏究 Vol.30 No.B
This paper presents the development of LED street light lamp which is controled by central command system. This system includes a lamp unit controller, data repeater and command repeater as well as the LED lamps. These devices enable the individual power control and partial on/off control of the LED lamps by the control repeater through full duplex communication line. Also, they have the ability to control the brightness and period of on/off timing by detecting the car's existence. As a result of this development, it is founded that the performances of the system have been satisfied to apply for the actual road test.
Modeling of Electrolyte Thermal Noise in Electrolyte-Oxide-Semiconductor Field-Effect Transistors
Park, Chan Hyeong,Chung, In-Young The Institute of Electronics and Information Engin 2016 Journal of semiconductor technology and science Vol.16 No.1
Thermal noise generated in the electrolyte is modeled for the electrolyte-oxide-semiconductor field-effect transistors. Two noise sources contribute to output noise currents. One is the thermal noise generated in the bulk electrolyte region, and the other is the thermal noise from the double-layer region at the electrolyte-oxide interface. By employing two slightly-different equivalent circuits for two noise current sources, the power spectral density of output noise current is calculated. From the modeling and simulated results, the bulk electrolyte thermal noise dominates the double-layer thermal noise. Electrolyte thermal noise are computed for three different concentrations of NaCl electrolyte. The derived formulas give a good agreement with the published experimental data.
Development of a minipig physical phantom from CT data
Park, Sooyeun,Lee, Pilsoo,Ha, Wi-Ho,Kim, Han Sung,Park, Byeong Ryong,Kim, Jae ,Seok,Shim, Sehwan,Park, Sunhoo,Kim, Young-su,Kim, Chan Hyeong,Jin, Young-Woo JAPAN RADIATION RESEACH SOCIETY 2017 JOURNAL OF RADIATION RESEARCH Vol.58 No.5
<P><B>ABSTRACT</B></P><P>Quantification of pathological progression of radiation-induced injury is essential in development of treatment methods, and a proper animal model is necessary for relevant radiological and medical studies. A minipig is a current animal model selected because of its similarities to humans in anatomy and pathology. In the present study, a minipig physical phantom was developed using computed tomography (CT) data. For dosimetry purposes, the minipig physical phantom was constructed on a slice-by-slice basis, with an array of holes to accommodate dosimeters. The phantom is constituted of three major organs, i.e. bone, lung, and remaining soft tissue, and the organs are clearly distinguishable on each 20-mm-thick axial slice. The quality of the tissue-equivalent (TE) substitutes was analyzed in terms of the atomic compositions and Hounsfield units (HUs). The density (in g/cm<SUP>3</SUP>) and effective atomic number of TE substitutes for the bone, lung, and soft tissue are 1.4 and 7.9, 0.5 and 10.0, and 1.0 and 5.9, respectively. Although the TE substitutes have slightly different physical properties, we think the phantom is acceptable because the HU values of the TE substitutes lie in the HU range of real tissues.</P>