웹캐스팅 규제에 관한 법제적 쟁점

권헌영 한국정보사회진흥원 2005 정보화정책 Vol.12 No.4

인터넷방송으로 일컬어지는 웹캐스팅은 통신방송융합 환경에서의 규제 문제를 잘 보여준다. 웹캐스팅은 인터넷을 통해 서비스되는 방송유사서비스로 우리 방송법에서는 방송사업자의 서비스는 방송으로 규율하고 통신사업자의 서비스는 통신으로 규율한다. 동일한 내용의 서비스가 다른 규율체계에 의하여 규제되는 문제점을 갖고 있는 것이다. 통신방송융합 환경에서 미래지향적 규제의 틀을 갖추기 위해서는 구조규제와 행위규제의 조화가 필요하다. 이러한 틀로서 공화주의적 구조규제와 층위규제의 조화는 새로운 환경에서의 규제방향을 설정하는 데 유용하다. 현재 논란을 일으키고 있는 방송통신 규제제도 개편에 있어서는 층위규제의 체계에 따라 네트워크와 컨텐츠를 분리하는 것과 매체 영향력을 고려하여 평등한 규제의 틀을 마련하는 것이 필요하다. 이는 논란에 있어서 보다 유연한 자세를 요구하는 것이다. 웹캐스팅에 관하여서는 아직은 규제성숙도가 충분하다고 보기 어려우므로 새로운 서비스가 사회적∙산업적으로 자리 잡을 수 있도록 하는 산업육성적 고려와 자율규제적 고려가 우선되어야 한다.

燃料節約을 위한 舶用中速機關의 最適運轉條件에 關하여 : 實習船 釜山 403號를 中心으로 With training ship "Busan 403"

尹錫勳,金鍾華,金永植 釜山水産大學校 1985 釜山水産大學 硏究報告 Vol.25 No.2

釜山水産大學 實習船 釜山 403號의 主機關인 中速디젤機關을 利用하여 機關 冷却水溫度와 給氣溫度를 변화시키며 機關性能 및 燃燒性을 考察한 結果 다음과 같은 結論을 얻었다. 1. ??를 높임에 따라 ??가 上昇하며 ?? 10℃ 上昇時 ??는 約 7.6℃ 上昇하였으며, ??를 60℃로 하여 運轉하는 경우에도 공기과잉율의 低下에 의하여 燃燒性이 不良해지는 현상은 일어나지 않았다. 2. ?? 增加時 O₂濃度 감소, CO₂濃度 增加의 현상이 나타났으며 ?? 40℃일 때 ?? 25℃ 上昇時 공기과잉율은 約 0.41程度 低下하였으나 이러한 현상은 ??가 增加할수록 둔화되었다. 3. ??가 上昇함에 따라 同一한 공기과잉율에서 이산화탄소 생성량이 增加하였으며 이는 同一한 條件에서 冷却水溫度의 上昇에 따라 燃燒性이 向上됨을 알 수 있다. 4. 馬力當 燃料消費率이 가장 적은 것은 負荷 100% BHP의 경우이며 이때 正味燃料消費率은 173.76gr/BHPㆍh이다. This investigation tries to find the better operating condition that the fuel oil is saved for the medium speed diesel engine installed on training ship "Busan" 403˝. This study observes the performance and combustibility of the engine under the condition for various temperature of cooling water and scavenging air. The combustibility increases with the increase of the cooling water temperature. Though the temperature of scavenging air rises to 60℃, the combustion of the engine is good in condition.

학교급식과 비급식이 아동의 체격ㆍ체력에 미치는 영향

박지훈,백영호 釜山大學校 附設 體育科學硏究所 1995 體育科學硏究所 論文集 Vol.11 No.-

The purpose of this study was to investigate the effect of school-feeding & non school-feeding on physique and physical fitness in children. The subjects of this study were on 6th grade(11years, N=9,089 M:4599, F:4490) who took physique test, 1,277(M:656, F:621) children took physical fitness test in Pusan municipal elementary school. From the result and discussions of this study, the conclusions are as follows: 1. school-feeding A children was better than school-feeding B children and non school-feeding children in the physique(p<.001). 2. In physical fitness test, school-feeding children were superior in 100m dash and standing board jump with male and female(p<.001), non school-feeding children were superior in distance race(600m), throw(male), arm-pulls(female), sit-ups(male).

放射電磁波에 의한 絶緣診斷에 관한 硏究

김영훈,박원주,이동인,김충년,이광식 嶺南大學校 工業技術硏究所 1995 工業技術硏究所論文集 Vol.23 No.1

In this paper, the detect of insulation disorder and process degree of insulation degradation of power apparatus, the waveform of discharge current, magnitude of discharge and frequency spectrum of the electromagnetic wave radiated from partial discharge by simulating with needle-to-plane electrode geometry and dielectric with artificial void, were investigated. The results obtained can be summarized as follows. 1) Streamer pulses occur near the positive cycle and trichel pulses near the peak of negative cycle of applied voltage. At that time, discharge magnitude of trichel pulses and streamer pulses was observed about 200[pC] and 500[pC] in air, respectively. 2) The level and frequency spectrum of radiated electromagnetic waves were increased about 20∼40[dB] at under 200[MHz] and about 2∼3[dB] above 200[MHz], compared with background noises. 3) A sudden change of discharge magnitute above 20∼30[pC] was observed with various applied voltages, but the magnitude showered to tend to saturate at 300∼300[pC] in dielectric. 4) The level and frequency spectrum of radiated electromagnetic waves were increased about 3∼6[dB] under 200[MHz]and about 2∼3[dB] above 200 [MHz], compared with background noises.

주파수 선택적 페이딩 채널에서의 다중반송파 CDMA의 다중채널 결합 검출 성능 분석

황용선,이종훈,김동구 延世大學校 電波通信共同硏究所 1999 電波通信論文誌 Vol.4 No.1

본 논문에서는 다중사용자/다중경로 환경에서 다중반송파 CDMA 시스템의 오류확률을 해석적으로 구하고, 다중사용자, 다중반송파, 다중경로에 의한 간섭의 영향을 분석하였다. 또한, 다중반송파 시스템에 역상관 검출기(decorrelating detector)를 결합한 다중반송파/다중사용자/다중경로 결합 검출 방식을 제시하고 성능 및 역상관 과정에 의한 백색가우시안 잡음(AWGN)의 증가를 분석하였다. 제안한 결합 검출 방식의 오류 확률은 사용자 한 명만이 존재하는 경우의 이상적인 성능에 근접하였다. In this paper, the bit error ratio(BER) performance of multi-carrier CDMA system in multi-user/multi-path environment is analytically derived, and effect of interferences due to multi-user, multi-carrier, multi-path is analyzed. A multi-carrier/multi-user/multi-path joint detection scheme incorporating a decorrelating detector is proposed, and its performance as well as the enhancement of noise due to decorrelating process are analyzed BER of the proposed joint detection scheme is only slightly degraded compared to the ideal case of single user environment.

측두 규격방사선사진 촬영시 두부의 위치변화가 확대율에 미치는 영향

서영훈,최영철 대한소아치과학회 2001 大韓小兒齒科學會誌 Vol.28 No.1

측두 규격방사선사진 촬영시 피사체의 정중시상면과 필름의 평행관계가 유지된 상태에서 피사체의 수직회전 그리고 피사체의 정중시상면과 필름의 평행이 이루어지지 않는 피사체의 수평회전에 따른 확대율의 변화를 평가하고자 하였다. 이를 위하여 수직회전 및 수평회전을 정밀하게 재현할 수 있는 입체적 기구를 제작하여 측두 규격방사선사진을 촬영한 후, 현상된 필름 상에서 선계측치 및 각도계측치에서의 확대율, 그리고 피사체의 정중시상면을 중심으로 한 좌우 대칭적인 해부학적 구조물 간의 거리차에 의한 확대율의 차이를 비교하였다. 그 결과,측두 규격방사선사진을 촬영시 피사체의 정중시상면과 필름의 평행관계가 유지된 상태에서 두부 고정장치의 양측귀꽂이를 중심축으로 한 수직회전은 모든 계측치의 확대율에 영향을 미치지 않으나, 정중시상면의 수평회전이 커질수록 수평 계측치에서는 대체로 확대율의 감소가 커지는 반면, 필름 우측의 수직계측치에서는 확대율의 점진적인 증가가, 좌측의 수직계측치에서는 확대율의 점진적인 감소가 나타나며, 동일한 회전량일 때 수직계측치에서보다 수평계측치에서 대체로 더 큰 차이가 나타나 측두 규격방사선사진의 촬영 시에는 피사체의 정중시상면과 필름과의 평행관계 유지의 중요성과 함께 피사체의 수평회전의 정도에 따른 필름의 부위별 확대율 변화의 유형을 숙지해야 할 것으로 가늠된다. This study was designed to evaluate the effects of angualtion changes of head posture on the enlargement ratios of a lateral headfilm depending on the vertical or horizontal rotation of the objects. A device was constructed to measure regional changes of enlargement ratios. The device was held within the cephalostat and cephalograms recorded at each measured degrees of the device tilting, vertically and horizontally. The enlargement ratios of the horizontal, vertical, and angular measurements on the films taken at each tilted angulations were obtained and compared with those on the films taken without rotation. In summary, the enlargement ratios of the horizontal linear measurements were decreased during horizontal rotations. The enlargement ratios of vertical measurements of the right side on the film were increased and those of the left side were decreased by the horizontal rotations. Enlargement ratios of horizontal measurements were affected further than those of vertical measurements by the same angular changes of the horizontal rotations. Therefore, a disruption of parallelism between the object's midsagittal plane and the film could result in distortion of the image while vertical rotation around the object's porionic axis would not significantly affect the enlargement ratios on the headfilm.

三韓 사회의 발전 과정 고찰 : 辰王의 위상변화와 삼한사회의 분립을 중심으로

조영훈 이화사학연구소 2003 梨花史學硏究 Vol.0 No.30

This article makes a goal to consider development process of the Byeon-han(弁韓) from Three-hans(三韓) period to Three-kingdoms(三國) period. The Account of Eastern Barbarians(東夷傳) in the Samgukji(三國志) is the oldest, and the nearest by real. Because those are based on the contemporary sources of Wei(魏), so must be regarded as the most fundamental materials. The part of the Samgukji concerning Three-Hans(三韓) in the 3rd century records the existence of a king by the name of Jin-wang(辰王) ruling Mokji-guk(目支國.) However the interpretence of a king by the name of Jin-wang have been varied, through this examination, I think that the historical character of his figure is representative of chieftain called Sinji(臣智); who came into existence as the result of combination and subjugation between tribal communities in Three-Hans society. The Sinji in each region organized central political principality, such as Sinbungo-guk(臣분沽國), Sinunsin-guk(臣雲新國), located Ma-han(馬韓), Guya-guk(狗邪國), Anya-guk(安邪國), located in Byeon-han. In the beginning of the 3rd century, Sinji of Mokii-guk concluded close relationships with the other chieftains of principalities, at length he became a king, Jin-wang. But the basis of jin-wang's kingship was we so he was always unable to bring these principalities under his authority. Also, on the distruption-policy of Wei(魏) dynasty in China, he soon disappearded during the latter half of the 3rd century. The eastern foreign policy of the Wei took the shape of a mililtary hard-line policy aimed at protecting their rear frontiers and ensuring the supply of goods. According to the changing circumstans, principalities of Jin-han(辰韓) and Ma-han get out of Jin-wang's authority, and they concentrated all one's abilities on making the kingdom in the each region. While on the Byeon-han, the nucleus that principality transform into state didn't appear, still principalities like Guya-guk, Anya-guk remain until 6th century. The actual existernce of Jin-wang historically evaluated as an important historical precednt to the formation of king on Three-kingdoms period(三國時代).

최적화 알고리듬들의 객체지향 C++ 라이브러리의 개발

현창헌,최영일 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.B

There are many optimal design packages, but they are big ones and they have only a few kinds of optimal algorithm coded with Fortran and it is sometimes necessary for user to write down some codes into their packages. So it is hard for user to learn how to use and customize them. More over, there are no commercial home-made software for optimum design. So, in this paper, several famous optimum algorithms are coded and modulized with C^++ which is known as a suitable computer language in order to build up more algorithms into one computer software. All algorithms developed with C++ here were tested for comparison with optimization tool box of MATLAB and are superior to MATLAB.

鹽化鐵處理 活性炭에 의한 NO₃-N 除去

鄭京勳,崔炯一,趙榮燦 嶺南大學校 環境問題硏究所 1999 環境硏究 Vol.19 No.1

마이크로波用 素子 特性化를 위한 Test Fixture 補正에 관한 硏究

신헌철,유영길 건국대학교 1991 論文集 Vol.32 No.1

To measure the active semiconductor devices for microwave, we fabricated the test fixture and cal. kit for it's characterization. OSL(Open, Short, Load)method was used to calibrate test fixture when the range of frequencies were 0.4 to 20GHz. We showed the de-embedding procedure to measure MIC, etc. The results for test fixture were obtained below 1.1 of the average VSWR and below - 20dB of the return loss.