• Title/Summary/Keyword: Patterns of Return

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Recruitment Patterns of Lumbar Extensor and Hip Extensors in Trunk Flexion and Extension (체간 굴곡과 신전 시에 요부 신근과 고관절 신근의 동원패턴)

  • Lee, Hyun-Ok;Gu, Bong-Oh
    • The Journal of Korean Physical Therapy
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    • v.21 no.1
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    • pp.57-63
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    • 2009
  • Purpose: We determined the recruitment pattern of lumbar elector spinalis, gluteus maxims, inner and outer hamstring muscle during trunk flexion and extension. Methods: Thirty healthy subjects(male; 15, female; 15) without low back pain and other problems in lower extremities participated in this study. To measure the recruitment pattern, the onset times of electromyographic activity of the muscles were recorded during trunk flexion and return(extension) to standing position. Results: The medial and lateral hamstring muscle was activated first, next elector spinalis, the last, gluteus maximus in trunk flexion. In trunk extension to standing position, the order of recruitment was similar to trunk flexion although the frequency is different. There were different between male and female in flexion and extension movement. Conclusion: The recruitment order of lumbar extensor and hip extensors in trunk flexion and extension will provide database in evaluation and intervention of lower back pain and lumbo.pelvic rhythm disorder.

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A Study on the Location Efficiency and the Development of Transit-Oriented Development Theory (TOD이론의 발전과 입지효율성에 관한 연구)

  • Kwack, Dong-Wha
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.3
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    • pp.27-38
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    • 2012
  • The purpose of this study is to analysis the concept of location efficiency, a base for the qualitative evaluation of TOD, and to propose the method of urban design for the improvement of location efficiency. Because of the environmental crisis by urbanization, sprawl and global warming, the importance of the solution through TOD has been increasing. For the future development of TOD, it becomes important to evaluate TOD qualitatively. From the study, it is grasped that location efficiency contains the concepts of value recapture, QoL and choice, financial return, and efficient regional land use and patterns. And the method of urban design for location efficiency is proposed as the followings: Form Based Zoning as land use plan, TOD and TOC model as node function, and street systems, mixed-use development, characteristic housing with various types, and networking of neighborhood facilities as place function.

Measurement of Sonobuoy Transmitting Antenna System for Anti-Submarine Warfare

  • Min Kyeong-Sik
    • Journal of electromagnetic engineering and science
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    • v.5 no.2
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    • pp.97-103
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    • 2005
  • This paper describes the measured results of sonobuoy transmitting antenna system for anti-submarine warfare (ASW). Since radiation pattern and power density depend on impedance matching between transmitting RF part and antenna with termination resistance, design of matching circuit is very important for sonobuoy system performance. Matching circuit is designed by Smith chart using control of L and C. In standing wave ratio(SWR) measurement using Network Analyzer, SWR of antenna with matching circuit observed 1.5 below at the assigned VHF band. It shows very excellent performance comparison with conversional product that is used for the same object. The measured vertical and horizontal radiation patterns are also shown the satisfaction of military specifications. A drop out of sonobuoy system on the sea is happened when angle of elevation direction is over 10 degrees, and it is conformed that it takes less than I second return to original signal level. The required electric power density is $83\;mW/m^2$ in the military specification, and measured electric power density is observed over average $110\;mW/m^2$ at all frequency bands.

Circular Ring Open-Ended Monopole Antenna with Strip for WLAN Dual-Band Operations

  • Yoon, Joong-Han
    • Journal of information and communication convergence engineering
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    • v.12 no.1
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    • pp.1-7
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    • 2014
  • A novel design of a simple circular ring with open-ended monopole antenna for wireless local area network (WLAN) applications is proposed in this article. The proposed antenna consists of an open-ended circular ring and $50-{\Omega}$ microstrip feed-line. The proposed antenna is capable of generating two separate resonant modes with good impedance-matching conditions. A prototype of the proposed antenna is designed, fabricated, and measured. Acceptable agreement between the measurement and simulation results is achieved. Experimental results show that the proposed antenna has operating bandwidths of 1.99-3.04 GHz and 5.08-6.1 GHz with a return loss of less than -10 dB, covering the required bandwidths of the 2.4/5.2/5.8-GHz WLAN standards. This is a microstrip antenna for IEEE 802.11a/b wireless local area networks applications. Meanwhile, the two-dimensional (2D) radiation patterns and three-dimensional (3D) gain performance of the antenna are also observed and discussed.

Novel Design of A Wideband Folded Monopole Antenna with Parasitic Element for DVB-H Application

  • Jeon, Seung-Gil;Ryu, Kwang-Woo;Choi, Jae-Hoon
    • Journal of electromagnetic engineering and science
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    • v.7 no.3
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    • pp.116-121
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    • 2007
  • Novel design of a wideband monopole antenna for DVB-H service is presented. The proposed antenna is designed based on a monopole antenna. It consists of folded monopole and parallel parasitic element. The folded segment of the folded monopole makes the antenna shorter. The length of the parasitic element obtains additional resonance frequencies. The gap distance between the folded monopole and the parasitic element is a key parameter to control impedance matching for wideband operation. The antenna has wide band performance, good impedance and radiation characteristics from 470 MHz to 870 MHz. The measured return loss for operating frequencies over DVB-H band is better than 10 dB. Good radiation patterns are also obtained. The measured results are compared with calculated results using Ansoft HFSS(High Frequency Structure Simulator).

Development of Basin-wide runoff Analysis Model for Integrated Real-time Water Management (실시간 물 관리 운영을 위한 유역 유출 모의 모형 개발)

  • Hwang, Man-Ha;Maeng, Sung-Jin;Ko, Ick-Hwan;Park, Jeong-In;Ryoo, So-Ra
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.507-510
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    • 2003
  • The development of a basin-wide runoff analysis model is to analysis monthly and daily hydrologic runoff components including surface runoff, subsurface runoff, return flow, etc. at key operation station in the targeted basin. A short-term water demand forecasting technology will be developed taking into account the patterns of municipal, industrial and agricultural water uses. For the development and utilization of runoff analysis model, relevant basin information including historical precipitation and river water stage data, geophysical basin characteristics, and water intake and consumptions needs to be collected and stored into the hydrologic database of Integrated Real-time Water Information System. The well-known SSARR model was selected for the basis of continuous daily runoff model for forecasting short and long-term natural flows.

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Multi Folded Dual rectangle loop Type Dual Monopole Antenna (다중 폴드 이중 사각루프형태의 이중 모노폴 안테나)

  • Lee, Hyeon-Jin;Choi, Tea-Il
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.61 no.1
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    • pp.5-9
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    • 2012
  • In this paper, multi folded dual monopole antenna for WLAN communication of dual bend is designed and fabricated. The proposed multi folded dual monopole antenna are consisted of two folded rectangle loops by microstrip fed that is modified dual monopole antenna. Therefore, the outside rectangle loop structure of the proposed antenna is extended a dual monopole. The characteristics of the proposed antenna is analyzed return loss and radiation patterns by the FDTD tools. As a result a bandwidth of proposed antenna has about 0.82GHz from 2.0 to 2.82[GHz] and 0.7GHz from 5.46 to 6.16[GHz]. It is used WLAN communications of 2[GHz] and 5[GHz].

Transfer Functional Modeling Using Soil Moisture Measurements at a Steep Forest Hillslope (산지사면의 실측토양수분을 이용한 전이함수 모형의 적용)

  • Kim, Sang-Hyun
    • Journal of Environmental Science International
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    • v.22 no.4
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    • pp.415-424
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    • 2013
  • In this paper, time series of soil moisture were measured for a steep forest hillslope to model and understand distinct hydrological behaviours along two different transects. The transfer function analysis was presented to characterize temporal response patterns of soil moisture for rainfall events. The rainfall is a main driver of soil moisture variation, and its stochastic characteristic was properly treated prior to the transfer function delineation between rainfall and soil moisture measurements. Using field measurements for two transects during the rainy season in 2007 obtained from the Bumrunsa hillslope located in the Sulmachun watershed, a systematic transfer functional modeling was performed to configure the relationships between rainfall and soil moisture responses. The analysis indicated the spatial variation pattern of hillslope hydrological processes, which can be explained by the relative contribution of vertical, lateral and return flows and the impact of transect topography.

Rectangular Ring Open-Ended Monopole Antenna with Inverted L-Strip for WLAN Dual-Band Operations

  • Yoon, Joong-Han
    • Journal of information and communication convergence engineering
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    • v.10 no.4
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    • pp.321-328
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    • 2012
  • A novel design for a simple rectangular ring with open-ended monopole antenna wireless local area network (WLAN) applications is proposed in this article. The proposed antenna consists of an open-ended rectangular ring, an inverted L-strip, and a rectangular slit in the ground plane, and is fed by a 50 ${\Omega}$ microstrip feed-line. Prototypes of the proposed antenna were designed, fabricated, and tested. Experimental results show that the proposed antenna receives 2.3125-2.775 GHz and 4.8625-6.7125 GHz with a return loss less than -10 dB, covering the required bandwidths of the 2.4/5.2/5.8 GHz WLAN standards. Meanwhile, the 2D radiation patterns and 3D gain performance of the antenna in the operation bands were also observed and discussed.

The Study of Clothing Imagery Expressed in Moliere`s PlayII-focused on Les precieuses Ridicules- (Moliere의 희극에 나타난 의상 Imagery에 관한 연구II-재치를 뽐내는 아가씨들을 중심으로-)

  • 이영숙
    • The Research Journal of the Costume Culture
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    • v.9 no.3
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    • pp.447-457
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    • 2001
  • Moliere completed classical French comedy by combining farce and commedia dell\`arte. Moliere believed that it was a plays obligation to give a lesson and entertainment. Moliere recreated commedia dell\`arte\`s typical acting patterns and characters in his work. He created with Lully comedie ballet that combined ballet and comedie for taste of Louis 14. Les precieuses ridicules critically displayed women at that time. Both contemporary high status women\`s custom and behavior were the targets of the author\`s synical criticism. There are three notable clothing imageries are shown in this work. First, Moliere used a variety of items in order to show emptiness of noble at that time. Items are ribbon and loop decorated rhingrave, feather decorated hat, perfumed wig and glove, lace covered canon and flower decorated shoes. Second, the author showed people\`s stutus through their clothes. Last, the author used clothing used clothing as a metaphor for hypocrisy. Thus when he said “take off the clothes” he meant take off hypocrisy and return truth.

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