50 research outputs found

    Bit error floor of multi-level phase modulation with noisy phase reference

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    A simple method is proposed for the derivation of bit error floor (BEF) expressions of multi- level phase modulations with noisy phase reference based on the geometric features of constellations. To validate the result, average BEF expressions of 8 + 8 and 4 + 12 amplitude and phase- shift keyings adopted in digital video broadcasting- satellite 2 extensions are derived and consultative committee for space data systems, and analyse the results.This work was supported by the research fund of Signal Intelligence Research Center supervised by Defense Acquisition Program Administration and Agency for Defense Development of Korea

    Printing head for hot embossing apparatus

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    ๋ณธ ๋ฐœ๋ช…์˜ ์ผ ์ธก๋ฉด์— ๋”ฐ๋ฅด๋ฉด, ์„ ํ˜• ์šด๋™์œผ๋กœ ๊ทธ ๋‹จ๋ถ€๊ฐ€ ํ”ผ๊ฐ€๊ณต๋ถ€์žฌ์— ์ถฉ๋Œ๋˜๋Š” ๋ณต์ˆ˜๊ฐœ์˜ ํ•€์„ ๊ตฌ๋น„ํ•œ ํ•ซ ์— ๋ณด์‹ฑ ์žฅ์น˜์˜ ์ธ์‡„ ํ—ค๋“œ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ•€์˜ ์›€์ง์ž„์„ ๊ตฌํ˜„ํ•˜๋Š” ๋ณต์ˆ˜๊ฐœ์˜ ํ•€ ๊ตฌ๋™๋ถ€๋“ค๊ณผ, ์ƒ๊ธฐ ํ•€ ๊ตฌ๋™๋ถ€๋“ค์ด ์„ค์น˜๋˜๋Š” ํ•€ ๊ตฌ๋™๋ถ€ ์„ค์น˜๋ถ€์™€, ์ƒ๊ธฐ ํ•€ ๊ตฌ๋™๋ถ€ ์„ค์น˜๋ถ€๊ฐ€ ์„ค์น˜๋˜๋Š” ํ—ค๋“œ ๋ณธ์ฒด๋ฅผ ํฌํ•จํ•˜๊ณ , ์ƒ๊ธฐ ํ•€ ๊ตฌ๋™๋ถ€ ์„ค์น˜๋ถ€์˜ ํ•˜๋ฉด์—๋Š” ์ƒ๊ธฐ ๊ฐ๊ฐ์˜ ํ•€ ๊ตฌ๋™๋ถ€๋ฅผ ์ˆ˜์šฉํ•˜๋Š” ๋ณต์ˆ˜๊ฐœ์˜ ์ˆ˜์šฉ ๊ตฌ๋ฉ์ด ํ˜•์„ฑ๋˜๊ณ , ์ƒ๊ธฐ ํ•€ ๊ตฌ๋™๋ถ€ ์„ค์น˜๋ถ€์˜ ์ƒ๋ฉด์—๋Š” ์ƒ๊ธฐ ์ˆ˜์šฉ ๊ตฌ๋ฉ๊ณผ ์—ฐํ†ต๋˜๋ฉฐ ์ƒ๊ธฐ ์ˆ˜์šฉ ๊ตฌ๋ฉ๋ณด๋‹ค ์ž‘์€ ์—ฐ๊ฒฐ ๊ตฌ๋ฉ์ด ํ˜•์„ฑ๋œ ํ•ซ ์— ๋ณด์‹ฑ ์žฅ์น˜์˜ ์ธ์‡„ ํ—ค๋“œ๋ฅผ ์ œ๊ณตํ•œ๋‹ค

    Robot joint structure and a robot hand comprising the same

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    ๋ณธ ๋ฐœ๋ช…์€ ๋กœ๋ด‡ ๊ด€์ ˆ๊ตฌ์กฐ๋ฅผ ๊ฐœ์‹œํ•œ๋‹ค. ๊ตฌ์ฒด์ ์œผ๋กœ, ๋ณธ ๋ฐœ๋ช…์€ ์ œ1 ๋ฐ”๋””์™€, ์ƒ๊ธฐ ์ œ1 ๋ฐ”๋””์™€ ์ด๊ฒฉ๋˜์–ด ๋ฐฐ์น˜๋˜๋Š” ์ œ2 ๋ฐ”๋””์™€, ์ƒ๊ธฐ ์ œ1 ๋ฐ”๋””์™€ ์ƒ๊ธฐ ์ œ2 ๋ฐ”๋””๋ฅผ ์—ฐ๊ฒฐํ•˜๋Š” ์ œ1 ์กฐ์ธํŠธ ์œ ๋‹›๊ณผ, ์ƒ๊ธฐ ์ œ1 ์กฐ์ธํŠธ ์œ ๋‹›๊ณผ ๋งˆ์ฃผ๋ณด๋„๋ก ๋ฐฐ์น˜๋˜๋ฉฐ, ์ƒ๊ธฐ ์ œ1 ๋ฐ”๋””์™€ ์ƒ๊ธฐ ์ œ2 ๋ฐ”๋””๋ฅผ ์—ฐ๊ฒฐํ•˜๋Š” ์ œ2 ์กฐ์ธํŠธ ์œ ๋‹›์„ ํฌํ•จํ•˜๊ณ , ์ƒ๊ธฐ ์ œ1 ์กฐ์ธํŠธ ์œ ๋‹›์€ ์„œ๋กœ ๊ต์ฐจํ•˜๋Š” ์ œ1 ์ปค๋„ฅํ„ฐ์™€ ์ œ2 ์ปค๋„ฅํ„ฐ๋ฅผ ํฌํ•จํ•˜๊ณ , ์ƒ๊ธฐ ์ œ2 ์กฐ์ธํŠธ ์œ ๋‹›์€ ์„œ๋กœ ๊ต์ฐจํ•˜๋Š” ์ œ3 ์ปค๋„ฅํ„ฐ์™€ ์ œ4 ์ปค๋„ฅํ„ฐ๋ฅผ ํฌํ•จํ•˜๋Š” ๋กœ๋ด‡ ๊ด€์ ˆ๊ตฌ์กฐ๋ฅผ ๊ฐœ์‹œํ•œ๋‹ค

    Residents' satisfaction and social support in long-term care hospital and nursing homes

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    ๊ฐ„ํ˜ธํ•™๊ณผ/์„์‚ฌ๋ณธ ์—ฐ๊ตฌ๋Š” ์š”์–‘๋ณ‘์›๊ณผ ์š”์–‘์‹œ์„ค ๋…ธ์ธ๋“ค์˜ ์ผ๋ฐ˜์  ํŠน์„ฑ ๋ฐ ๊ฑด๊ฐ•๊ด€๋ จ ํŠน์„ฑ๊ณผ ๊ฑด๊ฐ•์ฆ์ง„ ๋ฐ ์—ฌ๊ฐ€ ํ”„๋กœ๊ทธ๋žจ ์ œ๊ณต ๋‚ด์šฉ์„ ํŒŒ์•…ํ•˜๊ณ  ๊ฑฐ์ฃผ๋งŒ์กฑ๋„, ์‚ฌํšŒ์  ์ง€์ง€ ์ •๋„๋ฅผ ๋น„๊ต, ๋ถ„์„ํ•˜๋Š” ์„œ์ˆ ์  ์ƒ๊ด€๊ด€๊ณ„ ์—ฐ๊ตฌ์ด๋‹ค. ์—ฐ๊ตฌ ๋Œ€์ƒ์€ ์š”์–‘๋ณ‘์› ๊ฑฐ์ฃผ๋…ธ์ธ 66๋ช…๊ณผ ์š”์–‘์‹œ์„ค ๊ฑฐ์ฃผ๋…ธ์ธ 53๋ช…์ด์—ˆ๋‹ค. ์—ฐ๊ตฌ๋„๊ตฌ๋Š” Boldy์™€ Grenade(2001)๊ฐ€ ๊ฐœ๋ฐœํ•˜๊ณ  ํ™ฉ์ธ์˜ฅ(2007)์ด ๋ฒˆ์•ˆํ•œ ๊ฑฐ์ฃผ ๋งŒ์กฑ์ฒ™๋„(RSQ)๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๊ฑฐ์ฃผ๋งŒ์กฑ๋„๋ฅผ ์ธก์ •ํ•˜์˜€๊ณ , ์‚ฌํšŒ์  ์ง€์ง€๋Š” ๊น€ํšจ์ง„(2007) ์ด ์‚ฌํšŒ์  ์ง€์ง€์˜ ๊ตฌ์กฐ์  ์†์„ฑ์„ ์—ฐ๊ตฌํ•˜๊ธฐ ์œ„ํ•ด ์˜ฅ์ง„๋ฏธ(2002)๊ฐ€ ์‚ฌ์šฉํ•œ ์„ค๋ฌธ์ง€๋ฅผ ์ˆ˜์ •, ๋ณด์™„ํ•œ ๊ฒƒ๊ณผ, ๊ธฐ๋Šฅ์  ์†์„ฑ์„ ์—ฐ๊ตฌํ•˜๊ธฐ ์œ„ํ•ด ์žฅ์ˆ™์•„(1999)๊ฐ€ ์‚ฌ์šฉํ•œ ๋„๊ตฌ๋ฅผ ์‚ฌ์šฉํ•˜์˜€๋‹ค. ๋˜ํ•œ ๊ฑด๊ฐ•์ฆ์ง„ ๋ฐ ์—ฌ๊ฐ€ ํ”„๋กœ๊ทธ๋žจ๊ณผ ์ผ๋ฐ˜์  ํŠน์„ฑ, ๊ฑด๊ฐ•๊ด€๋ จ ํŠน์„ฑ์— ๋Œ€ํ•ด ๊ตฌ์กฐํ™”๋œ ์„ค๋ฌธ์ง€๋ฅผ ์‚ฌ์šฉํ•˜์˜€์œผ๋ฉฐ, ์ผ์ƒ์ƒํ™œ์ˆ˜ํ–‰๋Šฅ๋ ฅ์€ Barthel Index๋ฅผ ๋ฐ•์ข…ํ•œ ๋“ฑ (1995)์ด ์ˆ˜์ • ๋ณด์™„ํ•œ ๋„๊ตฌ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ธก์ •ํ•˜์˜€๋‹ค. ์ˆ˜์ง‘๋œ ์ž๋ฃŒ๋Š” SPSS 18.0 ํ”„๋กœ๊ทธ๋žจ์„ ํ™œ์šฉํ•˜์—ฌ ๋ถ„์„ํ•˜์˜€๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋ฅผ ํ†ตํ•ด ์–ป์€ ๊ฒฐ๊ณผ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค. ์ฒซ์งธ, ๊ฑฐ์ฃผ๊ธฐ๊ฐ„์€ ์š”์–‘๋ณ‘์›๊ณผ ์š”์–‘์‹œ์„ค์ด ์œ ์˜ํ•œ ์ฐจ์ด๋ฅผ ๋ณด์ด๋ฉฐ(p.05). ํ”„๋กœ๊ทธ๋žจ์˜ ์ฐธ์—ฌ ๋งŒ์กฑ๋„์—์„œ๋„ ์š”์–‘๋ณ‘์›์—์„œ ์ข…๊ตํ™œ๋™, ์‹ ์ฒดํ™œ๋™, ๋ฏธ์ˆ ์น˜๋ฃŒ์— ๋Œ€ํ•œ ๋ถˆ๋งŒ์ด ๋” ๋งŽ์€ ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ๋ณ‘์›์ง„๋ฃŒ์™€ ๋ฌผ๋ฆฌ์น˜๋ฃŒ๋Š” ์š”์–‘์‹œ์„ค์—์„œ ๋ถˆ๋งŒ์ด ๋” ๋งŽ์•˜๋‹ค. ์…‹์งธ, ์š”์–‘๋ณ‘์›๊ณผ ์š”์–‘์‹œ์„ค ๋…ธ์ธ์˜ ์‚ฌํšŒ์  ์ง€์ง€์˜ ๊ตฌ์กฐ์  ์†์„ฑ์€ ์œ ์˜ํ•œ ์ฐจ์ด๊ฐ€ ์—†์—ˆ์œผ๋‚˜(p>.05), ์„ธ๋ถ€ํ•ญ๋ชฉ์—์„œ ์‹œ์„ค ๋‚ด ๋™๋ฃŒ(p.05), ๊ธฐ๋Šฅ์  ์†์„ฑ ์ค‘ ์ •์„œ์  ์ง€์ง€์˜ ์‹œ์„ค ๋‚ด ๋™๋ฃŒ (p<.001), ์‹œ์„ค ์ง์›(p<.001) ํ•ญ๋ชฉ์ด ์œ ์˜ํ•œ ์ฐจ์ด๋ฅผ ๋ณด์ด๋ฉฐ, ์š”์–‘์‹œ์„ค ๋…ธ์ธ์˜ ์ •์„œ์  ์ง€์ง€๊ฐ€ ์š”์–‘๋ณ‘์› ๋…ธ์ธ๋ณด๋‹ค ๋†’๊ฒŒ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋„๊ตฌ์  ์ง€์ง€๋„ ์‹œ์„ค ์ง์›(p<.001) ํ•ญ๋ชฉ์ด ์œ ์˜ํ•œ ์ฐจ์ด๋ฅผ ๋ณด์ด๋ฉฐ ์š”์–‘์‹œ์„ค์—์„œ ๋” ๋†’๊ฒŒ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋„ท์งธ, ์š”์–‘๋ณ‘์› ๋…ธ์ธ๊ณผ ์š”์–‘์‹œ์„ค ๋…ธ์ธ์˜ ๊ฑฐ์ฃผ๋งŒ์กฑ๋„ ์ „์ฒด ํ‰๊ท  ์ ์ˆ˜๋Š” ์š”์–‘ ๋ณ‘์›์ด 3.53(ยฑ0.36)์ด์—ˆ์œผ๋ฉฐ, ์š”์–‘์‹œ์„ค์ด 3.97(ยฑ0.44)๋กœ ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜ํ•œ ์ฐจ์ด ๋ฅผ ๋ณด์ด๋ฉฐ ์š”์–‘์‹œ์„ค์˜ ๊ฑฐ์ฃผ๋งŒ์กฑ๋„๊ฐ€ ๋” ๋†’์€ ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋‹ค์„ฏ ์งธ, ์‚ฌํšŒ์  ์ง€์ง€์˜ ์†์„ฑ ์ค‘ ๊ธฐ๋Šฅ์  ์ง€์ง€์˜ ์ •์„œ์  ์ง€์ง€(r=0.357, p<.001) ์™€ ๋„๊ตฌ์  ์ง€์ง€(r=0.373, p<.001)๊ฐ€ ๊ฑฐ์ฃผ๋งŒ์กฑ๋„์™€ ํ†ต๊ณ„์ ์œผ๋กœ ์œ ์˜ํ•œ ์–‘์˜ ์ƒ๊ด€๊ด€ ๊ณ„๋ฅผ ๋ณด์˜€๋‹ค. ๊ธฐ๋Šฅ์  ์†์„ฑ์˜ ์ •์„œ์  ์ง€์ง€ ์ค‘ ์„ธ๋ถ€ํ•ญ๋ชฉ์—์„œ๋Š”, ๊ฐ€์กฑ(r=0.206, p<.05) ๊ณผ ์‹œ์„ค ๋‚ด ๋™๋ฃŒ(r=0.424, p<.01), ์‹œ์„ค ๋‚ด ์ง์›(r=0.336, p<.01)์ด ๊ฑฐ์ฃผ๋งŒ์กฑ๋„์™€ ์–‘์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋ณด์˜€์œผ๋ฉฐ, ๋„๊ตฌ์  ์ง€์ง€๋„ ๊ฐ€์กฑ(r=0.274, p<.01)๊ณผ ์‹œ์„ค ๋‚ด ๋™๋ฃŒ (r=0.339, p<.01), ์‹œ์„ค ๋‚ด ์ง์›(r=0.479, p<.01)์ด ๊ฑฐ์ฃผ๋งŒ์กฑ๋„์™€ ์–‘์˜ ์ƒ๊ด€๊ด€๊ณ„๋ฅผ ๋‚˜ํƒ€๋‚ด์—ˆ๋‹ค. ์ด์ƒ์˜ ์—ฐ๊ตฌ๊ฒฐ๊ณผ๋ฅผ ์ข…ํ•ฉํ•˜์—ฌ ๋ณผ ๋•Œ, ์š”์–‘๋ณ‘์›์€ ๋ณด๋‹ค ์ฒด๊ณ„ํ™”๋œ ์ „๋ฌธ์„ฑ์„ ๊ฐ€์ง€๊ณ  ๋…ธ์ธ ์ „๋ฌธ ์น˜๋ฃŒ๊ธฐ๊ด€์œผ๋กœ์„œ์˜ ์—ญํ• ์„ ํ•ด์•ผ ํ•˜๋ฉฐ ์žฅ๊ธฐ๊ฐ„ ์ž…์› ๋…ธ์ธ์„ ์š”์–‘์‹œ์„ค๋กœ ์—ฐ๊ณ„ํ•˜๋Š” ์ฒด๊ณ„๊ฐ€ ํ•„์š”ํ•˜๊ณ , ์š”์–‘์‹œ์„ค์€ ์˜๋ฃŒ ์„œ๋น„์Šค ๊ฐ•ํ™”์™€ ํ•จ๊ป˜ ์ž…์†Œ ๋Œ€์ƒ์ž์™€ ๊ฐ€์กฑ์—๊ฒŒ ์ž˜๋ชป๋œ ์ธ์‹์„ ๊ฐœ์„ ํ•˜์—ฌ ์žฅ๊ธฐ์š”์–‘ ๊ธฐ๊ด€์œผ๋กœ์„œ์˜ ์ž…์ง€๋ฅผ ํ™•๊ณ ํžˆ ํ•  ํ•„์š”์„ฑ์ด ์žˆ๋‹ค.ope

    ๅฎ‰ๆฑๅœฐๆ–น ๅ…ธ็ฑๆ–‡ๅŒ–์— ๊ด€ํ•œ ็ก็ฉถ

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    Guest Editorial: Future Mobility Technology

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    [No abstract available]FALS

    ANGLE AND TORQUE SENSOR

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    ๋ณธ ๋ฐœ๋ช…์˜ ์ผ ์‹ค์‹œ์˜ˆ๋Š”, ํšŒ์ „์ถ•์˜ ํšŒ์ „๊ฐ๋„๋ฅผ ์ธก์ •ํ•˜๋Š” ํšŒ์ „๊ฐ๋„์ธก์ •๋ถ€, ์ƒ๊ธฐ ํšŒ์ „์ถ•์˜ ํšŒ์ „์— ๋Œ€ํ•˜์—ฌ ๋ณต์›๋ ฅ์„ ์ œ๊ณตํ•˜๋Š” ํƒ„์„ฑ๋ถ€ ๋ฐ ์ƒ๊ธฐ ํƒ„์„ฑ๋ถ€์˜ ์Šคํ”„๋ง์ƒ์ˆ˜๊ฐ€ ์‚ฌ์ „์— ์ €์žฅ๋˜๋ฉฐ, ์ƒ๊ธฐ ํšŒ์ „๊ฐ๋„์ธก์ •๋ถ€๋ฅผ ์ด์šฉํ•˜์—ฌ ์ธก์ •๋œ ์ƒ๊ธฐ ํšŒ์ „๊ฐ๋„์™€ ์ƒ๊ธฐ ์Šคํ”„๋ง์ƒ์ˆ˜๋ฅผ ์ด์šฉํ•˜์—ฌ ์ƒ๊ธฐ ํšŒ์ „์ถ•์— ์ž‘์šฉํ•˜๋Š” ํ† ํฌ(torque)๋ฅผ ๊ณ„์‚ฐํ•˜๋Š” ์ œ์–ด๋ถ€๋ฅผ ํฌํ•จํ•˜๋Š”, ๊ฐ๋„ ๋ฐ ํ† ํฌ ์„ผ์„œ๋ฅผ ์ œ๊ณตํ•œ๋‹ค

    AUXILIARY APPARATUS FOR BICYCLE AND CONTROL METHOD THEREOF

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    ๋ณธ ๋ฐœ๋ช…์˜ ์ผ์‹ค์‹œ์˜ˆ๋Š” ํ•™์Šต์ž๊ฐ€ ์ž์ „๊ฑฐ ํƒ€๋Š” ๋ฒ•์„ ๋ฐฐ์šฐ๋Š” ๋™์•ˆ์— ํŽธ์˜์„ฑ์„ ์ œ๊ณตํ•˜๊ณ  ์ฃผํ–‰ ์ค‘ ์ž์ „๊ฑฐ๊ฐ€ ๋„˜์–ด์ง€์ง€ ์•Š๋„๋ก ๋„์šธ ์ˆ˜ ์žˆ๋Š” ์ž์ „๊ฑฐ์šฉ ๋ณด์กฐ์žฅ์น˜ ๋ฐ ์ด์˜ ์ œ์–ด๋ฐฉ๋ฒ•์„ ์ œ๊ณตํ•œ๋‹ค. ์—ฌ๊ธฐ์„œ, ์ž์ „๊ฑฐ์šฉ ๋ณด์กฐ์žฅ์น˜๋Š” ๋ณด์กฐ๋ฐ”ํ€ด, ์Šน๊ฐ•๋ถ€, ๊ตฌ๋™๋ถ€, ํ•˜์ค‘์„ผ์„œ๋ถ€, ๊ฒฝ์‚ฌ๊ฐ์„ผ์„œ๋ถ€ ๊ทธ๋ฆฌ๊ณ  ์ œ์–ด๋ถ€๋ฅผ ํฌํ•จํ•œ๋‹ค. ๋ณด์กฐ๋ฐ”ํ€ด๋Š” ๋’ท๋ฐ”ํ€ด์˜ ์–‘์ธก์— ๊ตฌ๋น„๋œ๋‹ค. ์Šน๊ฐ•๋ถ€๋Š” ๋ณด์กฐ๋ฐ”ํ€ด์™€ ์—ฐ๊ฒฐ๋˜๊ณ  ๋ณด์กฐ๋ฐ”ํ€ด๋ฅผ ์Šน๊ฐ•์‹œํ‚จ๋‹ค. ๊ตฌ๋™๋ถ€๋Š” ์ž์ „๊ฑฐ์˜ ๋ชธ์ฒด๋ฅผ ํ˜•์„ฑํ•˜๊ณ  ๋’ท๋ฐ”ํ€ด๊ฐ€ ๊ฒฐํ•ฉ๋˜๋Š” ๋ชธ์ฒดํ”„๋ ˆ์ž„์— ๊ตฌ๋น„๋˜๊ณ , ์Šน๊ฐ•๋ถ€๋ฅผ ์ž‘๋™์‹œํ‚จ๋‹ค. ํ•˜์ค‘์„ผ์„œ๋ถ€๋Š” ๋ณด์กฐ๋ฐ”ํ€ด์— ์˜ํ•ด ์ง€๋ฉด์— ๊ฐ€ํ•ด์ง€๋Š” ํ•˜์ค‘์„ ์„ผ์‹ฑํ•œ๋‹ค. ๊ฒฝ์‚ฌ๊ฐ์„ผ์„œ๋ถ€๋Š” ๋ชธ์ฒดํ”„๋ ˆ์ž„์ด ๊ธฐ์šฐ๋Š” ๊ฒฝ์‚ฌ๊ฐ์„ ์„ผ์‹ฑํ•œ๋‹ค. ๊ทธ๋ฆฌ๊ณ , ์ œ์–ด๋ถ€๋Š” ํ•˜์ค‘์„ผ์„œ๋ถ€์—์„œ ์„ผ์‹ฑ๋˜๋Š” ํ•˜์ค‘ ๋ฐ ๊ฒฝ์‚ฌ๊ฐ์„ผ์„œ๋ถ€์—์„œ ์„ผ์‹ฑ๋˜๋Š” ๊ฒฝ์‚ฌ๊ฐ ์ค‘ ํ•˜๋‚˜ ์ด์ƒ์„ ๊ธฐ์ดˆ๋กœ ๋ณด์กฐ๋ฐ”ํ€ด๊ฐ€ ์Šน๊ฐ•๋˜๋„๋ก ๊ตฌ๋™๋ถ€๋ฅผ ์ œ์–ดํ•œ๋‹ค

    Robot joint structure and a robot hand comprising the same

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