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최종석 ( Choi¸ Jong-suk ) 고려대학교 민족문화연구원 2021 民族文化硏究 Vol.92 No.-
본고는 베트남의 外王內帝 체제와 이질적인 고려전기 이중 체제의 양상이 어떠한 지적 맥락에서 발현·귀결되었는지를 탐색한 연구 작업이다. 필자는 고려 나름의 이중 체제 양상뿐만 아니라 그러한 양상에 작용한 지적 환경 또한 베트남과는 이질적이었을 것으로 보고, 베트남과 다르지 않았을 것으로 간주해 온 종래의 연구와 달리, 고려전기 텍스트를 그 시대의 맥락 속에서 파악하는 작업에 의지해서 새로운 지적 맥락을 탐색하였다. 단 이중 체제 가운데 國制 방면에 집중하여 고려 나름의 國制 양상이 어떠한 지적 맥락에서 성립·운영되었는지를 밝혀보고자 했다. 종래의 연구는 고려의 국제가 황제국 체제였고, 그러한 체제는 중국 왕조를 의식한 자주·대등 의식에서 비롯되었다고 보았는데, 본고에서는 황제국 체제와 거리가 먼 고려 나름의 國制 양상이 중국 왕조를 의식한 자주·대등 의식과는 전혀 다른 지적 맥락에서 성립·운영되었음을 규명해 보았다. I had explored the actual aspects of the dual system of the early Koryo Dynasty, which were heterogeneous from Vietnam, through comparison with the premodern Vietnamese case of practicing the “Feudal Exterior/Imperial Interior” doctrine(外王內帝). This paper is a companion study to this previous research, and it is a research work that explores the intellectual context in which the aspects of the dual system of the early Koryo emerged and resulted. In my view, not only the aspect but also the intellectual environment that acted on the dual system aspect of the early Koryo itself was heterogeneous from Vietnam. Relying on it, I explored a new intellectual context. Especially, I tried to clarify the intellectual context in which aspects of the political system unique to Koryo were established and operated by focusing on political regime. Previous studies have seen that the political system of Koryo was an imperial system, and that such a system was derived from a consciousness of independence against the Chinese dynasty and a consciousness of equality with the Chinese dynasty. Contrary to this approach, I explored in what kind of intellectual context it was established and operated.
Change of Cervical Curvature Angle by Wearing the Posture Corrective Garment
Jongsuk Chun,Jungwoo Jee,Hyunsook Kim,Minsun Kim,Kyounghyun Kwon 대한인간공학회 2015 대한인간공학회 학술대회논문집 Vol.2015 No.10
Objective: The purpose of this study was to measure the wearing effect of the posture corrective garments. The experimental garments were developed by reflecting the kinematical relation of sternoclavicular articulation, spine and muscles of dorsum. The posture correction effect was measured by the change of cervical curvature angle and distance. Background: Contemporary lifestyle pushes the people an unhealthy posture. The way of rehabilitation medicine has been increased to solve this problem. In the fashion industry, functional garments to correct posture are commercialized. However, there are few studies which analyze quantitatively the effect of posture corrective clothing. Method: Two types of posture corrective garments were developed. They spread shoulders and straighten the cervical vertebral and lumbar by changing sternoclavicular articulation. The posture correction effect was measured by the change of cervical curvature angle and horizontal distance between cervical curvature and tragion. 4 subjects participated in the experiment. They had various cervical curvature angles. Results: The cervical curvature angle of the subjects varied from 26°to 41° at static posture without experimental garments. By wearing the posture corrective garments, their cervical curvature angle was decreased by 1.39°~7.75°. The result implies that the developed posture correction garments have positive effect on the people who have low level of cervical lordosis. Application: the relation between design feature and the wearing effect of the posture corrective garments should be studied in the follow-up study.
A Design of 8.5 GHz META-VCO based-on Meta-material using 65 nm CMOS Process
Jongsuk Lee,Yong Moon 대한전자공학회 2016 Journal of semiconductor technology and science Vol.16 No.5
A low phase noise META-VCO based-on meta-structure was designed using 65 nm CMOS process. We used a meta-structure to get good phase noise characteristics. The measured phase noises are - 67.8 dBc/Hz, -96.37 dBc/Hz, and -107.37 dBc/Hz at 100 kHz, 1 MHz, and 10 MHz offset respectively. The META-VCO operates 8.45~8.77 GHz according to VCTRL, and the output power is -19.12 dBm. The power consumption is 28 mW with 1.2-V supply voltage. The calculated FOM is -140.76 dBc/Hz.
Bra Cup Sizes Using 3D Body Scan Manual Measurements
Jongsuk Chun,Seolyoung Oh 대한인간공학회 2011 대한인간공학회 학술대회논문집 Vol.2011 No.10
Objective: This study aims to examine the brassiere cup sizing system using direct measurements of 3D body scan data. Background: Breast shape has complex curving surface so that the methods of breast size measurement have many measurement error and consumers have problems for finding proper bra size. But 3D body scanner supplies the new ideal data for women's breast circumference measurement. This study developed 3D manual measurement method. Method: 32 women's 3D body scan data were selected in Size Korea. 3D scan data were measured in three methods. (1)2D direct measurement. (2)3D automatic measurement. (3)3D manual measurement. 3D body scan data sliced in horizontal lines were measured by AutoCAD program. Results: The t-test results of chest girth, bust girth and bra cup size showed significant difference between 2D direct measurements and 3D automatic measurements. Bra cup sizes by 3D automatic measurements were larger than 2D direct measurements, whereupon some subjects were classified as wrong bra sizes. Conclusion: The method using slice line along body surface (A line) was more useful to determine bra cup sizes than the method using simplified surface line (B line). Application: The 3D manual method can be used for measuring bra cup size.
A stable U-band VCO in 65 nm CMOS with -0.11 dBm high output power
Jongsuk Lee,Yong Moon 대한전자공학회 2015 Journal of semiconductor technology and science Vol.15 No.4
A high output power voltage controlled oscillator (VCO) in the U-band was implemented using a 65 nm CMOS process. The proposed VCO used a transmission line to increase output voltage swing and overcome the limitations of CMOS technologies. Two varactor banks were used for fine tuning with a 5% frequency tuning range. The proposed VCO showed small variation in output voltage and operated at 51.55-54.18 GHz. The measured phase noises were -51.53 dBc/Hz, -91.84 dBc/Hz, and -101.07 dBc/Hz at offset frequencies of 10 kHz, 1 MHz, and 10 MHz, respectively, with stable output power. The chip area, including the output buffer, is 0.16×0.16 ㎟ and the maximum output power was -0.11 dBm. The power consumption was 33.4 mW with a supply voltage of 1.2-V. The measured FOMP was -190.8 dBc/Hz.