TDMA 셀룰라 시스템에서 개별-탭 계수를 이용한 적응 등화기에 관한 연구

홍성수,박래수,한현택,김학춘,정찬주,나상동 조선대학교 동력자원연구소 1995 動力資源硏究所誌 Vol.17 No.1

Demodulation wants to adaptive equalizer to minimize interference of intersymbol which generate in multipath fading channel results from signal time and variety multi propagation through channel in digital radio network systems. Therefore using transition ratio of transfer and receiver system and the number of forward and backward using existing individual taps, we study improvement algorithms which generated bit error ratio by signal in frequence select fading. We analysis and compare linear equalizer and decision feedback nonlinear equalizer. Proposed algorithm is more efficent in fading environment when compared of step size by channel character which estimated existing least square and ITLMS algorithm. In this paper, using ITLMS algorithm by decision feedback BER is reduced for intersymbol interference by narrowband TDMA multipath fading in invironment without individual tap weight overlay.

디지로그, 생명자본주의, 새로 쓰는 한국문화론의 행방에 대하여

홍래성 이화어문학회 2022 이화어문논집 Vol.57 No.-

이 글은 이어령의 후기 사유에 해당하는 『디지로그』(2006)와 『생명이 자본이다』(2014)를 대상으로 그 성격과 특질이 어떠한지를 석명해보고자 한 시도이다. 우선, 『디지로그와 『생명이 자본이다』를 살피기에 앞서 직접적인 연관성을 지닌다고 판단되는 두 편의 글을 검토하며 전반적인 맥락을 파악해보았다. 이를 통해 ‘쌍방향성’, ‘상대적 관계’, ‘둘 다’라는 개념이 차후 이어령의 언설에서 무엇보다 가장 중요한 원형질로 삼아질 것임을 확인할 수 있었다. 그런 다음, 『디지로그』와 『생명이 자본이다를 구체적으로 분석하는 작업으로 나아갔다. 『디지로그』는 제목처럼 디지털과 아날로그 간의 결합을 모색하는 글이되, 실제로는 디지털이 마냥 강조되는 분위기에서 이에 대한 반작용으로 아날로그가 가진 중요성을 환기하려는 의도 및 곧 도래할(혹은, 이미 도래한) 정보시대에서 한국인이 문화적으로 얼마나 적합한지를 밝히려는 의도를 담아낸 글이라고 파악된다. 한편, 『생명이 자본이다』는 기존의 자본주의가 한계에 이르렀다는 판단 아래, 새로운 형태의 자본주의를 제창해보려는 거대한 포부를 보여준다. 더하여, 『생명이 자본이다』는 『디지로그』와 동일한 의도를 품고 있던 바, 마찬가지로 생명자본주의를 실현하는 데 있어 한국인이 문화적으로 얼마나 적합한지에 관한 서술을 문면의 이곳저곳에서 드러낸다. 생명과 자본주의를 연결 지으려는 시도는 일종의 패러다임을 뒤집으려는 행위로써 충분히 경청할 만하되, 아직은 더 구체화하여야 할 부분이 많은 듯 여겨진다. 기실, 『디지로그』와 『생명이 자본이다』는 서언·선언의 기획에 해당한다. 그렇기에, 불투명하다거나 추상적이라는 느낌을 주는 대목이 없지 않다. 다만, 생의 끝자락에서 출간된 『너 어디에서 왔니』(2020)와 사후에 출간된 『너 누구니』 (2022), 『너 어떻게 살래』(2022), 그리고, 앞으로도 계속 이어질 예정인 그 후속작들을 통해서 이어령의 목소리가 좀더 선명해지리라는 기대를 품을 수 있다. This study examines the characteristics of Digilog(2006) and The Vita Capitalism(2014). Before examining Digilog and The Vita Capitalism, I read the two texts to grasp their overall context. This confirmed that the concepts of “interactive”, “relative relationship”, and “both” play and important role in Lee O-young’s writings on the future. Then, I analyzed Digilog and The Vita Capitalism. As the title suggests, Digilog is a text that seeks convergence between digital and analog. However, in reality, it is intended to emphasize analog, opposing the atmosphere that emphasizes digital. It also has the intention of emphasizing the suitability of Korean culture to the information age. The Vita Capitalism contains the huge ambition of proposing a new form of capitalism, under the judgment that existing capitalism has reached its limit. The attempt to link life and capitalism is a paradigm-shifting act. However, there are many elements that need to be more specific. In fact, Digilog and The Vita Capitalism correspond to the introduction or declaration of a larger project, meaning that they often feel opaque or abstract. However, it can be expected that Lee O-young’s voice will become clearer through his works in his later years and works that have not yet been published.

저가 가속도센서와 인공신경망에 의한 사람 팔동작 유형 인식

이지홍,이래득 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

A system is developed that is intended to classify the motion pattern of a human body by a backpropagation neural network. For sampling the motion information a series of low cost accelerometers are attached to human body, and the sensor information which is described as a time-series is input to the neural network. To apply the time-series to the fixed sized input of the neural network, a quantization technique is devised.

뉴럴네트워크를 이용한 이동로봇의 지능제어

김홍래,김용태,한성현 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-

This paper presents a new approach to the design of cruise control system of a mobile robot with two drive wheel. The proposed control scheme uses a Gaussian function as a unit function in the fuzzy neural network, and back propagation algorithm to train the fuzzy neural network controller in the framework of the specialized learning architecture. It is proposed a learning controller consisting of two neural network-fuzzy based on independent reasoning and a connection net with fixed weights to simply the neural networks-fuzzy. The performance of the proposed controller is shown by performing the computer simulation for trajectory tracking of the speed and azimuth of a mobile robot driven by two independent wheels.

초등학교용 웹 기반 교수-학습 자료 개발 전략

김홍래,정인기,신준식,이대형 춘천교육대학교 과학교육연구소 2001 과학교육연구 Vol.25 No.-

교수·학습과 정보통신 기술의 통합을 위한 체제적 접근 방안

김홍래,임병춘 춘천교육대학교 과학교육연구소 2000 과학교육연구 Vol.23 No.-

Rat 전지 상완의 근섬유형 구성에 대한 연구

정명래,김홍선,신태균 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.2

This study was to determine the fiber-type populations and calculate the cross-sectional areas in each fiber-type in the muscle of the brachium of the rat. For 20 rats, the flexors (brachialis and biceps brachii) and extensors (triceps brachii) of the elbow taken from dissection. The fibers were classfied histochemically as fast-twitch oxidative glycolytic fiber(FOG), fast-twitch glycolytic fiber (FG), or slow-twitch oxidative fiber(SO), and their populations were determined. The cross-sectional areas of each type muscle fibers were calculated with microcomputer image analyzer. The results were as follows ; I. The variations in fiber-type population of various muscles with which their positions were observed as well as those reported in ot4er studies. 2. In both extensor and flexor groups, the deep region of the muscles was consisted of higher populaions of SO fibers, while more superficial regions of the same muscles were more FG fibers. 3. The percentage of SO fibers were larger in the extensors than that of flexors. 4. Except the SO fibers, the cross-sectional areas of FOG and FG fibers in the extensors were larger than that of flexors.

면역점착적혈구응집반응에 의한 신증후출혈열환자 혈청중의 한탄 및 서울바이러스에 대한 항체형성

김홍래 고려대학교 의과대학 1986 고려대 의대 잡지 Vol.23 No.3

Immune adherence hemagglutination (IAHA) test was used to investigate the production of antibodies against Hantaan (HTN/83-138) and Seoul (SEO/80-39) viruses in sera from Hemorrhagic fever with renal syndrome (HFRS) patients who mere infected with Hantaan virus in Korea. The five patients diagnosed as typical HFRS have been bled a t weekly intervals starting from 3 days after onset of disease up to 66 days. Sera were tested to determine the titers of antibodies as well as the reactivities against Hantaan and Seoul viral antigens. The results are as follows; 1. IAHA antibodies against Hantaan viral antigen: The antibodies increasing from 3 days after the onset of disease were reached at peaks around one week later. The antibody titers were rised rapidly and the peak titers were reached at around 2 weeks after the disease and persisted for 2-3 weeks. Thereafter the titer were decreased slowly. 2. IAHA antibodies against Seoul viral antigen: The antibodies were detectable at as earlier days as 3 days after the onset of disease. The titers of antibody were peaked at around one week later and persisted with same level of titers until 2 months. However the titers of antibody were not as high as those against Hantaan viral antigen. 3. Reactivities of HFRS sera against Hantaan and Seoul viral antigens: The reactivity was always 4-16 times higher with Hantaan viral antigen than with Seoul viral antigen in all sera tested except the sera from very early days. The clear differences in reactivity between Hantaan and Seoul viral antigens were observed in all sera used regardless of times for bleeding suggesting homologous relationship between Hantaan virus and antibodies in sera of HFRS patients.

龍溪山一帶 山火跡地의 初期植生과 二次遷移에 關한 硏究

鄭洪來,金琮鴻 順天大學校 1984 論文集 Vol.3 No.1

This paper is a series of the investigation of early vegitation, secondary succession and soil in the forest area. The forest fires had occured in April, 1978 and in February, 1984. The site is located in the north-eastern facing slope remoted about 1200 neters from peak of Mt. Yongkae (626 meters high). The investigations were conducted nine times from August 11, 1983 to August 16, 1984. The results are summarized as follow: 1. The floristic composition in the investigated area was 97 families, 262 genera, 391 species and 64 varieties. Among them, the floristic compositions of burned area were 62 families, 139 genera, 149 species and 42 varieties. Thirty-one species in the first year and 91 species have been found in the sampling sites. 2. Festuca ovina, Miscanthus sinensis var. purpurascens, Lespedeza maximowiczii, and Rhododendron mucronulatum var. ciliatum were dominant species in the burned area. Biological spectra showed the H-D₁-??-e type in the burned areas both in the year of 1978 and 1984. 3. The degree of succession (DS) of B₄stand was the highest among those of the other burned areas, and those of B₁,B₂and B₃stands were very similiar. Species diversity index ?? of B₃stand was the highest among those of the other stands, and that of B₄stand was decreased. It showed that the evennes indexes between B₁,B₂,B₃and B₄stands were most similiar among the sampling sites. 4. Compared with those of 0-5㎝ depth, soil properties of pH, organic matter, nitrogen, phosphorus, and calcium in 6-30㎝ depth were decreased. It was assumed that these results were due to the forest fire. 5. Quercus dentata, Quercus serrata, Styrax japonica, Rhododendron mucronum var. ciliatum and Lespedeza maximowiczii which are fire-resistant, sprouted again in the roots and the trunks. 6. After-forest fire, Pinus densiflora forest were late in vegetation recovery, were poor in species composition, and were regarded as easily devastated regions.

蛋白質 水準과 窒泰供給源이 反芻胃微生物 蛋白質 合成과 Starch 및 Cellulose 利用性에 미치는 영향

趙弘來 건국대학교 1988 論文集 Vol.26 No.1

This experiments were conducted to study the effect of sources and levers of protein on the rumen microbial growth and energy utilization by washed cell suspension of rumen microbes. Protein sources were 100% casein.N,100% urea-N and casein-N .urea-N (25 : 75) and protein levels were 5, 7, 9, 11, 13, 15 and 17% of energy sources in a dry matter basis. Source of energy was starch+cellulose(50 : 50). The results obtained were as follows ; 1. NH3-N concentration(mg/100ml), under the casein, was the highest of 1.95 at 11% protein level, and ammonia concentration was increased by increasing crude protein level in urea and casein + urea, proportionally (urea, 6.50-18.25, casein+urea, 5.80-13.50)(P <0.01). 2. Starch utilization(mg/100ml) in the casein + urea was higher 24.73% than casein and 42.51% than urea (P <0.01). Cellulose utilization(mg/100ml) in the casein+urea was higher 63.84% than urea and 66.01% than casein(P <0.01). 3. Microbial protein synthesis(mg/100ml) was the highest in the casein+ urea and increased as increasing protein level in the incubation medium as 26.25, 33.90, 33.45, 41.10, 51.70, 89.99 and 99.25mg at 5, 7, 9, 11, 13, 15 and 17% protein levels, respectively.