18 research outputs found

    (An) Empirical study of gender differences in central government Website usage : (The) Korean case

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    ํ•™์œ„๋…ผ๋ฌธ(๋ฐ•์‚ฌ) --์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :ํ–‰์ •ํ•™๊ณผ(์ •์ฑ…ํ•™ ์ „๊ณต),2009.2.Docto

    Is There Partisan Selective Exposure in Blue House Website Usage?

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    ํด๋ฆญ์ŠคํŠธ๋ฆผ ๋ฐ์ดํ„ฐ๋ฅผ ์ด์šฉํ•˜์—ฌ ์ฒญ์™€๋Œ€ ์›น์‚ฌ์ดํŠธ์— ๋Œ€ํ•œ ์‹ค์ œ ์ด์šฉ๋„๋ฅผ ๋ถ„์„ํ•œ ๊ฒฐ๊ณผ ๊ฐœ์ธ๋“ค์˜ ๋Œ€ํ†ต๋ น์— ๋Œ€ํ•œ ์‹ ๋ขฐ๋„์™€ ์ •์น˜์  ๊ด€์‹ฌ์ด ์œ ์˜๋ฏธํ•œ ์˜ํ–ฅ์„ ๋ฏธ์นจ์„ ํ™•์ธํ•˜์˜€๋‹ค. ์ฆ‰, ๋Œ€ํ†ต๋ น์— ๋Œ€ํ•œ ์‹ ๋ขฐ๊ฐ€ ๋†’์„์ˆ˜๋ก ์ฒญ์™€๋Œ€ ํ™ˆํŽ˜์ด์ง€๋ฅผ ๋ฐฉ๋ฌธํ•  ํ™•๋ฅ ์ด ๋†’๊ณ , ๋˜ ๋ฐฉ๋ฌธ์ผ์ˆ˜์™€ ํŽ˜์ด์ง€ ๋ทฐ๋กœ ์ธก์ •ํ•œ ์ด ์šฉ๋„ ์—ญ์‹œ ์ฆ๊ฐ€ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋Š”๋ฐ” ์ด๋Š” ์ „ํ†ต์  ์ •๋ณด์„ ํƒ์ด๋ก (selective exposure theory)์„ ์ง€์ง€ํ•˜๋Š” ๊ฒฐ๊ณผ์ด๋‹ค. ํ•œํŽธ ์ •์น˜์  ๊ด€์‹ฌ๋„์™€ ์ง€์ง€์ •๋‹น ๊ฐ„์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ๊ณ ๋ คํ•œ ๊ฒฐ๊ณผ ์ •์น˜์  ๊ด€์‹ฌ ์ฆ๊ฐ€์— ๋”ฐ๋ฅธ ์ฒญ์™€ ๋Œ€ ์›น์‚ฌ์ดํŠธ ์ด์šฉ ์ฆ๊ฐ€์œจ์ด ๅํ•œ๋‚˜๋ผ๋‹น ๊ณ„์—ด ์ง€์ง€์ž, ่ฆชํ•œ๋‚˜๋ผ๋‹น ๊ณ„์—ด ์ง€์ง€์ž, ๋ฌด๋‹นํŒŒ์˜ ์ˆœ์ž„์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ์ด์ฒ˜๋Ÿผ ์•ผ๋‹น ์„ฑํ–ฅ์ผ์ˆ˜๋ก ์—ฌ๋‹น ์„ฑํ–ฅ์ด๋‚˜ ๋ฌด๋‹นํŒŒ๋ณด๋‹ค ์ •์น˜์  ๊ด€์‹ฌ ์ฆ๊ฐ€์— ๋”ฐ๋ฅธ ์ฒญ์™€๋Œ€ ํ™ˆํŽ˜์ด์ง€ ์ด์šฉ ์ฆ๊ฐ€์œจ์ด ํฐ ๊ฒƒ์€ ์ž์‹ ๋“ค์˜ ํƒœ๋„๋‚˜ ์‹ ๋…์— ๋ฐ˜๋Œ€๋˜๋Š” ์ •๋ณด๊ฐ€ ๊ฐ–๋Š” ํšจ์šฉ์„ฑ (utility)์— ๊ธฐ์ธํ•œ๋‹ค๊ณ  ๋ณผ ์ˆ˜ ์žˆ๋‹ค. ์ฆ‰, ์ •์น˜์  ๊ด€์‹ฌ์ด ๋†’์€ ์•ผ๋‹น ์„ฑํ–ฅ์ผ์ˆ˜๋ก ์ฒญ์™€๋Œ€ ์›น์‚ฌ์ดํŠธ ๋ฅผ ์ƒ๋Œ€์ ์œผ๋กœ ๋งŽ์ด ์ด์šฉํ•˜๋Š” ๊ฒฝํ–ฅ์ด ๋‚˜ํƒ€๋‚œ ๊ฒƒ์€ ์ž์‹ ์ด ๋ฐ˜๋Œ€ํ•˜๋Š” ์ •๊ถŒ์˜ ์ž…์žฅ๊ณผ ํ™œ๋™์— ๋Œ€ํ•œ ์ •๋ณด๋ฅผ ์–ป์–ด ์ด๋ฅผ ๋น„ํŒ ๋‚ด์ง€ ๊ณต๋ฐ•ํ•˜๋Š” ์ž๋ฃŒ๋กœ ํ™œ์šฉํ•˜๊ธฐ ๋•Œ๋ฌธ์ด๋ผ๋Š” ์„ ํ–‰์—ฐ๊ตฌ๋“ค์˜ ๊ฒฐ๊ณผ์™€ ์ผ๋งฅ ์ƒํ†ตํ•œ๋‹ค๊ณ  ๋ณผ ์ˆ˜ ์žˆ๋‹ค. ๊ทธ๋ฐ–์— ๋ณธ์ธ์„ ์ œ์™ธํ•œ ์ฒญ์™€๋Œ€ ํ™ˆํŽ˜์ด์ง€ ๋ฐฉ๋ฌธ๊ฐ€์กฑ์ˆ˜๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก ๋ณธ์ธ์˜ ์ฒญ์™€๋Œ€ ํ™ˆํŽ˜์ด์ง€ ์ด ์šฉ๋„๊ฐ€ ์œ ์˜๋ฏธํ•˜๊ฒŒ ์ฆ๊ฐ€ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋Š”๋ฐ” ์ด๋Š” ์ผ์ข…์˜ ๊ฐ€์กฑ ๋‚ด ์ง€์‹ ํ™•์‚ฐ์— ๊ธฐ์ธํ•œ๋‹ค๊ณ  ๋ณด์—ฌ ์ง„๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋Š” ์ฒญ์™€๋Œ€ ์›น์‚ฌ์ดํŠธ ์ด์šฉ์— ์žˆ์–ด ๊ธฐ๋ณธ์ ์œผ๋กœ ์ •์น˜์  ์„ ํƒ์„ฑ์ด ์ง€์ง€๋˜์ง€๋งŒ, ์ •์น˜์  ๋ฐ˜ ๋Œ€ ์ž…์žฅ์— ๋Œ€ํ•œ ๊ธฐํ”ผ๋กœ ์ธํ•œ ์ •์น˜์  ์–‘๊ทนํ™”(polarization)์— ๋Œ€ํ•œ ์šฐ๋ ค๋Š” ๊ทธ๋ฆฌ ํฌ์ง€ ์•Š์Œ์„ ์•” ์‹œํ•˜๊ณ  ์žˆ๋‹ค. This paper focuses on partisan selective exposure in Blue House Website Usage, which deserves attention because partisan selective exposure in the usage of e-government websites can impede deliberative democracy. For the purposes of the paper, the clickstream data of Nielsen KoreanClick panels were employed to trace accesses to and usage volumes of the Blue House Website in 2010, and data were also gathered from Nielsen KoreanClick, which did a web-based survey in 2011, Survey on the Behavior of Internet Users in the Public Sector, using its own personnel panels. The empirical analysis indicates two findings. First, personal trust in the president and political interest has a significant influence on website usage. That is to say, people with higher trust in the president are more likely to visit the website and this is the same as the analysis of usage measured by the number of daily visits and by the number of page views. Second, considering interactions between political interest and party support, the rates of increase in website usage as political interest increases are in this order: opponents to the governing party, supporters of the governing party, and supporters of no party. This has something to do with the prior studies that mentioned that opponents of the governing party tried to use e-government information to criticize the government and the governing party. This study implies that, although there is selective exposure to website usage, the concern about the political polarization is not too serious

    ์ผ๋ ‰ํŠธ๋ฆฟ ์ฝ˜๋ด์„œ ๋งˆ์ดํฌ๋กœํฐ์„ ์ด์šฉํ•œ ์Œ์„ฑ ์‹ ํ˜ธ์˜ ์ฐจ๋™ ์ฆํญ๊ธฐ ํšŒ๋กœ ์ธก์ •

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    Master๋ณธ ์„์‚ฌํ•™์œ„ ๋…ผ๋ฌธ์€ ์ผ๋ ‰ํŠธ๋ฆฟ ์ฝ˜๋ด์„œ ๋งˆ์ดํฌ๋กœํฐ (ECM)์„ ์ด์šฉํ•œ ์ฐจ๋™ ํšŒ๋กœ๊ฐ€ ๋‹จ์ผ ์ข…๋‹จ ํšŒ๋กœ์™€ ๋น„๊ตํ•ด ์ง์ˆ˜ ํ•˜๋ชจ๋‹‰์ด ์ค„์–ด๋“œ๋Š” ์žฅ์ ์„ ์ธก์ •์„ ํ†ตํ•ด ๊ด€์ฐฐํ–ˆ๋‹ค. ์ผ๋ฐ˜์ ์œผ๋กœ ECM์„ ์‚ฌ์šฉํ•  ๋•Œ ๋‹จ์ผ ์ข…๋‹จ ํšŒ๋กœ ๋ฐฉ์‹์œผ๋กœ ์‚ฌ์šฉํ•˜๋Š”๋ฐ ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ์ด์ „์— ์กด์žฌํ–ˆ์ง€๋งŒ ์ž˜ ์‚ฌ์šฉํ•˜์ง€ ์•Š์•˜๋˜ ์ฐจ๋™ ํšŒ๋กœ ๋ฐฉ์‹์„ ์‚ฌ์šฉํ–ˆ๋‹ค. ๋ณธ๋ฌธ์—์„œ๋Š” ์ฐจ๋™ ํšŒ๋กœ์™€ ๋‹จ์ผ ์ข…๋‹จ ํšŒ๋กœ๋ฅผ ์†Œ์‹ ํ˜ธ ํ•ด์„์„ ํ†ตํ•ด ๋ถ„์„ํ•œ ๋’ค ์ฐจ๋™ ํšŒ๋กœ์—์„œ ์ง์ˆ˜ ํ•˜๋ชจ๋‹‰์ด ๊ฐ์†Œํ•˜๋Š” ์ด์œ ๋ฅผ ์ˆ˜์‹์„ ํ†ตํ•ด ์„ค๋ช…ํ–ˆ๋‹ค. ์ธก์ • ์‹œ ECM์œผ๋กœ๋ถ€ํ„ฐ ๋‚˜์˜ค๋Š” ์ž‘์€ ์‹ ํ˜ธ๋ฅผ ์ฆํญํ•˜๊ธฐ ์œ„ํ•ด ์ฆํญ๊ธฐ๋ฅผ ์‚ฌ์šฉํ–ˆ๊ณ  ์ธก์ • ํšŒ๋กœ์˜ ๋™์ž‘์ ์„ ๊ฒฐ์ •ํ•˜๊ธฐ ์œ„ํ•ด ECM์— ๋‚ด์žฅ๋œ N ์ฑ„๋„ JFET(Junction Field Effect Transistor)์˜ ์ „๋ฅ˜-์ „์•• ํŠน์„ฑ์„ HP4155A ์žฅ๋น„๋ฅผ ํ†ตํ•ด ์ธก์ •ํ–ˆ๋‹ค. ECM์˜ ๋™์ž‘์ ์„ ๊ฒฐ์ •ํ•˜๋Š” ๋ถ€ํ•˜ ์ €ํ•ญ RL๊ฐ’์„ ๊ฒฐ์ •ํ•  ๋•Œ ECM์˜ ์ „๋ฅ˜๊ฐ€ ์ฆํญ๊ธฐ์ชฝ์œผ๋กœ ์ตœ๋Œ€ํ•œ ๋งŽ์ด ํ˜๋Ÿฌ ์ฆํญ๊ธฐ์˜ ์ด๋“์„ ํ‚ค์šฐ๊ธฐ ์œ„ํ•ด JFET์ด ํฌํ™”์˜์—ญ์—์„œ ๋™์ž‘ํ•˜๋Š” ํ•œ RL๊ฐ’์„ ์ตœ๋Œ€ํ•œ ํฌ๊ฒŒ ์„ค์ •ํ–ˆ๋‹ค. ๋˜ํ•œ ์ €ํ•ญ RL์˜ ํฌ๊ธฐ๋ฅผ ๋” ํ‚ค์šฐ๊ธฐ ์œ„ํ•ด ECM์˜ VDD๋ฅผ 3.3 V์—์„œ 4.7 V๋กœ ํ‚ค์›Œ ์‚ฌ์šฉํ–ˆ๋‹ค. ์ธก์ • ๊ฒฐ๊ณผ ๋‹จ์ผ ์ข…๋‹จ ํšŒ๋กœ์™€ ๋น„๊ตํ•ด ์ฐจ๋™ ํšŒ๋กœ์˜ ์ง์ˆ˜ ํ•˜๋ชจ๋‹‰์ด ๊ฐ์†Œํ•˜๋Š” ๊ฒƒ์„ ํ™•์ธํ–ˆ๋‹ค. ๋‘ ํšŒ๋กœ์˜ ์‹ ํ˜ธ์˜ ์ถœ๋ ฅ์ด ๋‹ฌ๋ผ ์ด๋“์„ ๋ณด์ •ํ•œ ๊ฒฐ๊ณผ ๋‹จ์ผ ์ข…๋‹จ ํšŒ๋กœ์™€ ๋น„๊ตํ•ด ์ฐจ๋™ ํšŒ๋กœ์˜ 2nd ํ•˜๋ชจ๋‹‰์ด 23 dB, 4th ํ•˜๋ชจ๋‹‰์ด 38.2 dB, 6th ํ•˜๋ชจ๋‹‰์ด 21.4 dB ๊ทธ๋ฆฌ๊ณ  8th ํ•˜๋ชจ๋‹‰์ด 24.1 dB ๋งŒํผ ๊ฐ์†Œํ–ˆ๋‹ค. ECM์„ ์‚ฌ์šฉํ•œ ์•„๋‚ ๋กœ๊ทธ front-end์—์„œ ECM ์ถœ๋ ฅ์˜ ์„ฑ๋Šฅ์€ ์•„๋‚ ๋กœ๊ทธ front-end ์ „๋ฐ˜์˜ ์„ฑ๋Šฅ์— ์˜ํ–ฅ์„ ๋ผ์น  ์ˆ˜ ์žˆ๋‹ค. ์ด๋•Œ ์ฐจ๋™ ํšŒ๋กœ ๋ฐฉ์‹์„ ์‚ฌ์šฉํ•œ ECM์œผ๋กœ๋ถ€ํ„ฐ ์ง์ˆ˜ ํ•˜๋ชจ๋‹‰์ด ๊ฐ์†Œํ•œ ์ถœ๋ ฅ์„ ์–ป๊ฒŒ ๋œ๋‹ค๋ฉด THD (Total Harmonic Distortion)๊ฐ€ ๊ฐ์†Œํ•ด SNDR (Signal and Noise to Distortion Ratio)์„ ์ฆ๊ฐ€ ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋‹ค๋Š” ์žฅ์ ์„ ๊ธฐ๋Œ€ํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋Š” ๋งˆ์ดํฌ๋กœํฐ์œผ๋กœ ECM ๋ฐฉ์‹์„ ์‚ฌ์šฉํ•  ๋•Œ ์ฐจ๋™์‹ ํ˜ธ๋ฅผ ์ถœ๋ ฅํ•˜๊ธฐ ์œ„ํ•œ ์•„๋‚ ๋กœ๊ทธ front-end์—์„œ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ๋‹ค.This thesis presents measurement for differential amplifier circuit using ECM. We measured and analyzed the advantage that the differential circuit reduced even harmonic distortion compared to the single-ended circuit. To set the DC operating point of an ECM for measurement of acoustic signal, the I-V characteristic of the N channel JFET in ECM was measured. The measurement of differential amplifier circuit reduced the second harmonic 23.6dB compared to the single-ended measurement at 1 kHz sine wave input
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