• Title/Summary/Keyword: Receiving method

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Near-Field Receiving Measurement of Active Phased Array Antenna for Full Digital Radar Application (완전 디지털 레이다에 적용 가능한 능동위상배열안테나 근접전계 수신 시험)

  • Chae, Heeduck;Lee, Jae-Min;Kim, Young-Wan;Kim, HanSaeng;Jin, Hyoung Seog;Park, Jongkuk
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.27 no.7
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    • pp.625-634
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    • 2016
  • A full digital receiving active phased array antenna generates final receiving beams by digital beam forming of received digital signals in element-level that makes difficult to use typical near-field measurement method. Thus in this paper, a modified near-field measurement method which is suitable for full digital receiving active phased array antenna is proposed. Also the measured results of receiving beam pattern and G/T using developed L-band full digital receiving active phased array antenna are shown for the verification of proposed method.

Implementation of Video Transmitting and Receiving System for Acquisition of Test Data (시험자료 획득을 위한 영상 송수신 시스템 구현)

  • Ryu, Sang-Gyu
    • Journal of the Korea Institute of Military Science and Technology
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    • v.20 no.5
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    • pp.681-687
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    • 2017
  • This paper presents about an implementation of Video Transmitting and Receiving System(VTRS) for acquiring test data. The VTRS consists of two parts. The first is Transmitter Unit(TU) that is installed on a missile to acquire various kinds of data and transmit the data to the ground through RF signals. The second is Receiver Unit(RU) that receives the transmitted RF signals and reconstruct those to the original data. To gather a high speed data reliably and securely on the ground, the TU is designed by considering data transfer scheme, data compression, modulation method, encryption technic, link budget, and antenna radiation pattern. Further, a placement method of multiple receiving stations is suggested. The VTRS has been tested on a field to check the link margins and maximum receiving distance in a real environment. Finally, the VTRS is applied to a missile flight test and gathered high speed data reliably.

Effects of Aroma Oil Inhalation on Nausea·Vomiting and Anorexia in Cancer Patients Receiving Chemotherapy (향기흡입이 항암 화학요법 환자의 오심·구토와 식욕부진에 미치는 효과)

  • Jung, Eun-Sook;Lee, Byung-Sook
    • Korean Journal of Adult Nursing
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    • v.16 no.1
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    • pp.135-145
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    • 2004
  • Purpose: The purpose of this study was to examine the effects of aroma oil inhalation using peppermint and bergamot on nausea vomiting and anorexia in cancer patients receiving chemotherapy. Method: Study subjects were 30 patients who had experienced nausea and vomiting when they had been hospitalized in K university hospital located in D city after receiving more than two Cisplatin combination chemotherapy treatments. Among them 15 patients were in the experimental group doing aroma oil inhalation and the other 15 patients were in the control group without aroma oil inhalation. The data were collected from February 1, 2002 to May 17, 2002. The data were analyzed with SPSS WIN 10.0 program using frequency, percentage, $x^2$-test, t-test, Repeated Measures ANOVA. Result: 1) The degree of nausea and vomiting in the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. 2) The degree of anorexia in the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. Conclusion: aroma oil inhalation was effective for relieving patients' nausea vomiting and anorexia receiving chemotherapy. Therefore, it is proposed that aroma oil inhalation should be applied as a supportive nursing arbitration method to relieve patients' nausea vomiting and anorexia who are receiving chemotherapy.

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Method of Moments Analysis for Theoretical Site Attenuation Curves (시험장감쇠량 이론곡선의 모멘트 법 해석)

  • Ki Chai Kim
    • Journal of the Korean Institute of Telematics and Electronics A
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    • v.29A no.7
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    • pp.39-47
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    • 1992
  • This paper showed that theoretical site attenuation curves were obtained simply by the method of moments analysis for current integral equations on antennas. Since the expansion coefficients of driving and receiving points were calculated from the method of moments procedure, site attenuations were evaluated simply using these basic antenna parameters. Theoretical site attenuations were calculated with half-wave resonant dipoles connected directly to a 50 ohm receiving system and connected to a 72/50 ohm matching network, respectively. Results were compared with other theoretical studies reported so far. Also included were experimental results for site attenuations to prove the validity of theoretical analysis.

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Receiving Time Calculation Method for Lines of COMS MI LV1B Images (통신해양기상위성 기하보정 영상의 라인 별 수신시각 계산)

  • SEO, Seok-Bae;AHN, Sang-Il
    • Journal of Aerospace System Engineering
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    • v.3 no.2
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    • pp.24-30
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    • 2009
  • MI LV1B images, geometric corrected data of COMS MI, has no time information per each line, but field of weather prediction using the MI LV1B images needs time information on it. This paper explains two calculation methods for receiving time on lines of MI LV1B images and analyzes difference between two calculation methods using simulated data.

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Development of Biotelemetry Method by Combining the SSBL Method and the Pinger Synchronizing Method (1) - Design and production of system - (SSBL 방식과 핑거동기 방식을 조합한 바이오텔레메터리 방식의 개발 (1) -시스템의 설계 및 제작 -)

  • 박주삼;고탁창언
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.39 no.3
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    • pp.218-229
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    • 2003
  • A new biotelemetry method that the installation and the treatment of equipment is convenient and the instantaneously detailed location of the fish attached the pinger is able to track comparatively easily was developed. The receiving system in this biotelemetry method was advanced for track the detailed behavior of the fish by the miniature tracking pinger, because it was a burden to fish to add the pinger with the water temperature and the pressure sensor. By combining of the super short base line (SSBL) method to detect the direction of pinger and the pinger synchronizing method to measure the range from receiving transducer to pinger, the three dimensional locations of fish to the receiving transducer is gotten instantaneously. The receiving system is devised to realize the high precision or wide detection range by application of the basic design method for receiving system of biotelemetry developed by the present authors and the hydrophone array configuration. The measurement distance error in the pinger synchronizing method is minimized through the correction of which the deviation of transmission pluse period of pinger is caused by changing water temperature. A prototype system which is able to track the instantaneously detailed location of the fish by the SSBL and pinger synchronizing biotelemetry (SPB) method was produced.

Investigation of receiving position in the measurement method for floor impact sound in a testing building (표준시험동 바닥충격음 측정위치에 대한 고찰)

  • Lee, Sin-Young;Yoo, Seung-Yup;Jeon, Jin-Yong
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.05a
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    • pp.964-968
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    • 2007
  • The measurement of floor impact sound have been standardized in KS 2810-1 and 2. The height of receiving microphones position is specified in the standard as 1.2m which is almost half height of apartment rooms as a listening position. In this study, receiving positions are investigated by measuring the distribution of sound pressure levels at 792 receiving microphone positions in the standard testing building. Standard impact sources, tapping machine and impact ball, are driven on the center position in the source room where is located at the above floor. It was found that the distribution of sound pressure levels in the receiving room indicates significant deviation at different frequencies there is more than 5dB drop at 63Hz but 2dB rise at 125Hz at a height of 1.2m when the impact ball is driven, in the other case of a generating tapping machine there is more than 2dB rise at 125Hz at a height of 1.2m due to room modes.

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A Study on Application Methods of the Transfer of Development Rights - Focused on Residential Areas of Gwangju - (개발권양도제 적용방안에 관한 연구 - 광주광역시 주거지를 중심으로 -)

  • Jeong, Woo-Gon
    • Journal of the Korean housing association
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    • v.23 no.5
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    • pp.61-73
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    • 2012
  • This study applied the value of floor-area-ratio standard calculation method to case areas and analyzed them to overcome the limits of previous studies in calculation methods for area standards and land price (value) standard development rights. The results are presented as follows: First, criteria to select sending areas and receiving areas are needed. Second, calculation methods based on the value of floor-area-ratio standard can be widely used as standardized criteria in various areas. Third, for the connection of sending areas with receiving areas, the connections of 1:1, n:1, 1:n, and n:n are available and the location of possible dealing areas should be considered. Also, the choice of connecting unions that meet the purpose of TDR presented by local governments is available. Fourth, for Gwangju, as receiving areas downtown provide higher profits than previous renewal projects, the application of TDR is available. Application methods to overcome problems are presented as follows: First, criteria to select sending and receiving areas should be prepared and implemented in an order of priority. Second, in calculating development rights, methods based on the value of floor-area-ratio standard should be used. Third, the standards and principles of sending and receiving areas should be designated and possible dealing areas should not be limited.

향기흡입이 항암 화학요법 환자의 오심ㆍ구토와 식욕부진에 미치는 효과

  • Jeong, Eun-Suk
    • Korean Journal of Hospice Care
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    • v.4 no.2
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    • pp.42-51
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    • 2004
  • Purpose: The purpose of this study was to examine the effects of aroma oil inhalation using peppermint and bergamot on nauseaㆍvomiting and anorexia in cancer patients receiving chemotherapy. Method: Study subjects were 30 patients who had experienced nausea and vomiting when they had been hospitalized in K university hospital located in D city to receiving more than two Cisplatin combination chemotherapy. Among them 15 patients were in the experimental group doing aroma oil inhalation and the other 15 patients were in the control group without aroma oil inhalation. The data were collected from February 1, 2002 to May 17, 2002. The data were collected from February 1, 2000 to May 17, 2002. The data were analyzed with SPSS WIN 10.0 program using frequency, percentage, X2-test, t-test, Repeated Measures ANOVA. Result: 1)The degree of nauseaㆍvomiting on the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. 2)The degree of anorexia on the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. Conclusion: aroma oil inhalation was effective for relieving patients' nauseaㆍvomiting and anorexia receiving chemotherapy. Therefore, it is proposed that aroma oil inhalation should be applied as a supportive nursing arbitration method to relieve patients' nauseaㆍvomiting and anorexia who are receiving chemotherapy.

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Efficient Estimation Method of Reception Rate for Terrestrial Digital TV Broadcasting Service (효율적인 지상파 디지털 TV방송 수신율 산정방안)

  • Kwon, Won-Hyun;Kim, Kwang-Ui
    • Journal of IKEEE
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    • v.16 no.1
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    • pp.7-14
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    • 2012
  • In this paper, a reception rate of terrestrial digital TV broadcasting service is analyzed and a novel method which can estimate the broadcasting coverage rate more objectively and reliably than the existing method is proposed. Previous method measures the reception rate by means of electric field intensity measurement or subjective video quality assessment. Because of limited measuring points, it inherently has measurement error and cannot consider the viewer's receiving conditions in real-time. In order to consider the viewer's population and receiving environment, morphology which characterizes the viewer's receiving environment is extracted using household census data of National Statistical Office and the land cover map of Ministry of Environment. Using the extracted geographical morphology, the reception rate of terrestrial digital TV broadcasting service is calculated with Spectrum Management Intelligence System (SMIs). Proposed method can calculate the reception rate more objectively and reliably than the existing methods because it fully considers the viewer's receiving environments in real-time.