• Title/Summary/Keyword: Core Reflection

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The Application Technology of Korean-style R&D in Verification for deploying the Neo-Korean Style Public Building - Focused on the positivistic case R&D Technologies in Neo-Korean Style Public building

  • Kim, Young-Hoon;Peck, Yoo-Jung;Park, Joon-Young
    • KIEAE Journal
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    • v.17 no.1
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    • pp.5-13
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    • 2017
  • Purpose: This study, by comprehensively the characteristics of new Hanok application techniques with the proposed site application technology in the course of the design changes that have been accumulated through Hanok technology development the second stage business, by analyzing the range of reflection, new Considering the direction reflects the efficiency of the new Hanok application techniques. Method: new Hanok application technology, it was been established through research and development of large 1 new Hanok technology it has been proposed through the "site-specific application techniques" and 2 builders and designers "space-time proposed technique" Analysis of the case, at the center of the design changes, the land the body of laws and regulations, the requirements of the public buildings, compared to the construction method and the like for the reduction of construction costs, new Hanok applied technology in the process of change by it There was analyzed whether acceleration on the range and step which is reflected in the design Result: The result of new Hanok applied technology was built through the demonstration build business case, process another major technology, foundation, woodwork, walls, roof, has been reflected in the ceiling construction, the inclusion of items in the proposed technique of construction , it was applied to the main steps in general, except for other construction work landscaping. Application techniques and construction proposal technology research team has presented, show the difference between the scope and method. With significance effort to improve the unreasonable traditional methods of these core processes that can be reflected in the field repeated the construction proposed technique as a result of the utility that can be applied for substantial construction.

Modified LEACH Protocol improving the Stabilization of Topology in Metal Obstacle Environment (금속 장애물 환경에서 토폴로지 안정성을 개선한 변형 LEACH 프로토콜)

  • Yi, Ki-One;Lee, Jae-Kee;Kwark, Gwang-Hoon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.12B
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    • pp.1349-1358
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    • 2009
  • Because of the limitation of supporting power, the current WSN(Wireless Sensor Network) Technologies whose one of the core attributes is low power consumption are the best solution for shipping container networking in stack environment such as on vessel. So it is effective to use the Wireless Sensor Network Technology. In this case, many nodes join in the network through a sink node because there are difficulties to get big money and efforts to set up a lot of sink node. It needs clustering-based proactive protocol to manage many nodes. But it shows low reliability because they have effect on radio frequency in metal obstacle environments(interference, distortion, reflection, and etc) like the intelligent container. In this paper, we proposed an improved Modified LEACH Protocol for stableness radio frequency environment. In the proposed protocol, we tried to join the network and derived stable topology composition after the measuring of link quality. Finally, we verified that the proposed protocol is composing more stable topology than previously protocol in metal obstacle environment.

Scale Effects of Stability Parameters in the Hydraulic Model Tests of Rubble Mound Coastal Structures (사석구조물(捨石構造物)의 안정성(安定性)에 관한 수리모형(水理模型)의 축척효과(縮尺効果))

  • Ryu, Cheong Ro
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.7 no.3
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    • pp.111-119
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    • 1987
  • Scale effects of stability, run-up, run-down and reflection of layered coastal structures are investigated through the experiments with 7 kinds of hydraulic scale models. The occurrence mechanism and the control method of scale effects are also discussed. As a result, it is found that the similarity of permeability of inner layers plays an important role in the occurrence of scale effects, which has been neglected in the most of conventional model tests. To assure the best scale effects for permeable coastal structures, control of Reynolds numbers of the porous media flow in each layer is recommended. It is also found that Reynolds numbers in revetment, filter, and core layer must be greater than $2{\times}10^4$, $3{\times}10^3$, and $1{\times}10^3$, respectively.

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Two Contrasting Views of Film Directors on Human Nature: A Reflection on Films by Lee Chang-Dong and Im Sang-Soo ('인간'을 바라보는 영화감독의 두 가지 시선 -이창동, 임상수 영화를 중심으로 -)

The Theory of Meaning in Hospice Care

  • Starck, Patricia L.
    • Journal of Hospice and Palliative Care
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    • v.20 no.4
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    • pp.221-225
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    • 2017
  • Care for the human spirit is a core component of quality end-of-life care. Logotherapy, based on the premise that the primary motivation of human beings is to find meaning and purpose in life, can be helpful in providing care for patients, families, and loved ones in hospice care. The use of Socratic dialog in posing questions about one's life experiences, values, and attitudes is a useful method of evoking reflection. Guidance for finding meaning, even until one's last moments, can be found in the three categories: (a) tasks or deeds, (b) experiences of love and beauty, and (c) attitudes chosen in spite of a fate that cannot be changed. Self-transcendence, defined as getting outside the self for the good of others, can add meaning to life. A growing body of research concerning meaning-centered therapy is promising for improving spiritual well-being and a sense of meaning and purpose in life.

A study on the mathematical disposition and communication level in process of applying mathematical journal writing to the 3rd graders in a mathematics classroom (수학일지 쓰기 활동이 초등학생의 수학적 성향과 수학적 의사소통 수준에 미치는 영향: 3학년 수와연산 영역을 중심으로)

  • Yang, Hyeonsu;Kim, Min Kyeong
    • The Mathematical Education
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    • v.57 no.3
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    • pp.247-270
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    • 2018
  • The purpose of this study is to investigate the mathematical disposition and mathematical communication level of elementary school students in the process of applying mathematical journal writing activities. For this study, 21 third grade students in elementary school were observed when they participated in mathematical journal writing activities while studying number and operation area. According to the Mathematical disposition pre-test and post-test results, mathematical confidence, mathematical flexibility, mathematical will, and mathematical reflection increased and it was statistically proved. Expression and explanation level of the mathematical communication writing area also increased as the mathematical journal writing activity continued. Thus, mathematical journal writing activities can help to enhance the core competencies of the 2015 revised mathematics curriculum while make students 'to develop and transform mathematical expressions' and 'to express oneself'. Also, it provides implications of including active writing activities such as mathematical journal writing activities into mathematics classroom. Furthermore, the change in mathematical communication level according to mathematical disposition level was not statistically significant. Therefore, when providing active writing activities including mathematical journal writing activities into classroom, it is necessary to understand students' individual characteristics and to encourage communication to be active rather than giving feedback based on one's mathematical disposition level.

A Study on the Woman Oriented Sensibility in Product Design (여성적 감성을 반영한 제품디자인에 관한 연구)

  • Seo Hong-Seok
    • Science of Emotion and Sensibility
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    • v.8 no.3
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    • pp.231-240
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    • 2005
  • The social participation and economic position of the woman come to be high, they are rising to the market as a core consumer and trend inventor leading the fashion. So that, we have to recognize the woman with one axis of product development, it is necessary to the product development and the strategy which it will put woman oriented sensibility in product design. From this research, it reviews the backgrounds from social culture and the economic marketing sides through the digital product recently, it analyzed the features of woman characteristic designs which is embossed the product. Also it connected actual product development, it developed a woman oriented sensibility audio which reflected a woman's consuming trend, life style and the preference product style. It proposed the necessity of woman oriented product development ultimately and researched the product design strategy for the reflection of woman sensibility.

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Near Infrared Laser Based on Polymer Waveguide Bragg Grating (폴리머 광도파로 브래그 격자 기반의 근적외선 레이저)

  • Kim, Kyung-Jo;Son, Nam-Seon;Kim, Jun-Whee;Oh, Min-Cheol
    • Korean Journal of Optics and Photonics
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    • v.22 no.4
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    • pp.179-183
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    • 2011
  • An external cavity laser operating at near infrared wavelength is demonstrated by incorporating polymer waveguide Bragg reflectors. 3rd order Bragg grating and oversized rip waveguide structure were designed by using the effective index method and the transmission matrix method. The polymer waveguide was fabricated using polymer materials with refractive indices of 1.462 and 1.435 for the core and the cladding layers, respectively. The external feedback laser with 875-nm Bragg grating exhibits single mode lasing located at 850-nm wavelength with an output power of 0 dBm, a 20-dB bandwidth of 0.2 nm and a side mode suppression ratio of 40 dB.

Indoor Location Estimation and Navigation of Mobile Robots Based on Wireless Sensor Network and Fuzzy Modeling (무선 센서 네트워크와 퍼지모델을 이용한 이동로봇의 실내 위치인식과 주행)

  • Kim, Hyun-Jong;Kang, Guen-Taek;Lee, Won-Chang
    • Journal of the Korean Institute of Intelligent Systems
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    • v.18 no.2
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    • pp.163-168
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    • 2008
  • Navigation system based on indoor location estimation is one of the core technologies in mobile robot systems. Wireless sensor network has great potential in the indoor location estimation due to its characteristics such as low power consumption, low cost, and simplicity. In this paper we present an algorithm to estimate the indoor location of mobile robot based on wireless sensor network and fuzzy modeling. ZigBee-based sensor network usually uses RSSI(Received Signal Strength Indication) values to measure the distance between two sensor nodes, which are affected by signal distortion, reflection, channel fading, and path loss. Therefore we need a proper correction method to obtain accurate distance information with RSSI. We develop the fuzzy distance models based on RSSI values and an efficient algorithm to estimate the robot location which applies to the navigation algorithm incorporating the time-varying data of environmental conditions which are received from the wireless sensor network.

WAVE Communication-based V2I Channel Modeling

  • Lee, Soo-Hwan;Kim, Jong-Chan;Lim, Ki-Taek;Cho, Hyung-Rae;Seo, Dong-Hoan
    • Journal of Advanced Marine Engineering and Technology
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    • v.40 no.10
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    • pp.899-905
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    • 2016
  • Wireless access in vehicle environment (WAVE) communication is currently being researched as core wireless communication technologies for cooperative intelligent transport systems (C-ITS). WAVE consists of both vehicle to vehicle (V2V) communication, which refers to communication between vehicles, and vehicle to infrastructure (V2I) communication, which refers to the communication between vehicles and road-side stations. V2I has a longer communication range than V2V, and its communication range and reception rate are heavily influenced by various factors such as structures on the road, the density of vehicles, and topography. Therefore, domestic environments in which there are many non-lines of sight (NLOS), such as mountains and urban areas, require optimized communication channel modeling based on research of V2I propagation characteristics. In the present study, the received signal strength indicator (RSSI) was measured on both an experience road and a test road, and the large-scale characteristics of the WAVE communication were analyzed using the data collected to assess the propagation environment of the WAVE-based V2I that is actually implemented on highways. Based on the results of this analysis, this paper proposes a WAVE communication channel model for domestic public roads by deriving the parameters of a dual-slope logarithmic distance implementing a two-ray ground-reflection model.