• 제목/요약/키워드: Surface Course

검색결과 339건 처리시간 0.023초

"내경(內經)"에 나타난 삼초유형(三焦有形)의 근거(根據) 및 삼초(三焦)의 실체(實體) (Source And Identity Supporting The Theory of Materiality of Tri-Energizer in Nei Jing)

  • 윤창열
    • 대한한의학원전학회지
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    • 제25권4호
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    • pp.57-63
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    • 2012
  • Objective & Method : We investigated the identity of tri-energizer, which was originally described in Huang Di Nei Jing and claimed by traditional scholars, and drew the following conclusions. Result & Conclusion : According to Huang Di Nei Jing tri-energizer is one of the six hollow-organs and is called hollow organs for digestion and elimination, water guffer organ, or solitary hollow organ. It is believed that tri-energizer is regarded as the existing entity based on following several different sources; it functions as the course of channels, regulates wind and link and physiological function-especially intrinsic function of upper, middle, lower internal organs. It also controls syndromes and dysfunction of an illness, the surface of the body, and the cracked surface of the skin. Finally, bold and timidity depend on the tri-energizer. Experts determined the true nature of tri-energizer types. Experts include: Yu Tuan from the Ming dynasty, Tang Jong Hai and Ye Lin from the Qing dynasty, and Zhang Xi Chun from the Zhunghua Minguo period. These experts' claims are based on shape and forms of tri-energizer. Our examinations of anatomical and physiological basis on tri-energizers showed that, in a narrow sense, tri-energizer indicates visceral and parietal peritoneum and omentum surrounding the internal organs, and in a broad sense, indicates the overall membrane wrapping around the whole internal organs including five visceral organs and six hollow organs.

전자식 차체 자세 제어 장치를 위한 실시간 시뮬레이터 개발에 관한 연구 (A Study on the Development of a Real Time Simulator for the ESP (Electronic Stability Program))

  • 김태운;천세영;양순용
    • 드라이브 ㆍ 컨트롤
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    • 제16권4호
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    • pp.48-55
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    • 2019
  • The Electronic Stability Program (ESP), a system that improves vehicle safety, also known as YMC (Yaw Motion Controller) or VDC (Vehicle Dynamics Control), is a system that operates in unstable or sudden driving and braking situations. Developing conditions such as unstable or sudden driving and braking situations in a vehicle are very dangerous unless you are an experienced professional driver. Additionally, many repetitive tests are required to collect reliable data, and there are many variables to consider such as changes in the weather, road surface, and tire condition. To overcome this problem, in this paper, hardware and control software such as the ESP controller, vehicle engine, ABS, and TCS module, composed of three control zones, are modeled using MATLAB/SIMULINK, and the vehicle, climate, and road surface. Various environmental variables such as the driving course were modeled and studied for the real-time ESP real-time simulator that can be repeatedly tested under the same conditions.

바이오미미크리 특성이 적용된 신재료 가공방법 연구 (A Study on Processing Methods of New Materials Applied to Biomimicry Characteristics)

  • 지주연;서지은
    • 한국실내디자인학회논문집
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    • 제22권5호
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    • pp.367-375
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    • 2013
  • Using the 'New material' concept has recently been introduced into the natural characteristics. In the course of such a, Janine M. Benyus has proposed to mimic the characteristics of natural ecosystems to mention the concept of Biomimicry. Process made engineered using technical elements for representing the material properties of Biomimicry such will be acting importantly, This study intends to analyze how new materials applied to 'Biomimicry' characteristics are processed in space. The results were as follows : 1) Processing methods of new materials resulted as 'Forming', 'Surface treatment', 'Bonding', 'Inserting'. These four were divided and analyzed into 'Form', 'System', 'Adaptation'. As a result of this analysis, such significances were shown as 'Forming/Surface treatment/Bonding' in 'Form', 'Bonding' in 'System' and 'Adaptation'. 2) 'Bonding' applied to 'System' of new material can be recycled to be combined with other materials through the existing adhesive material, and present as a solution of 'Sustainable development'. 3) 'Bonding' applied to 'Adaptation' of new material is to impart the ability to react to the environment through the joint, but is characteristic, at this time, using digital and other field technology. It appeared primarily that it can be known to meet the social trends and convergence between fields. Thus, as the finish that are friendly to the environment from the interior design, the results of the study are expected to be utilized in the study of new materials guidelines.

정상인의 자세와 시각 교란에 따른 정적 균형능력의 변화 (Evaluation of Static Balance in Postural Tasks and Visual Cue in Normal Subjects)

  • 서삼기;김수현;김태열
    • The Journal of Korean Physical Therapy
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    • 제21권4호
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    • pp.51-56
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    • 2009
  • Purpose: This study examined the difference in the static balance ability according to the visual cues and postural tasks in normal subjects. Methods: Thirty participants (12 male, 18 female; mean age $24.63\pm1.43$ years) stood barefoot on a force platform in a one-legged stance, tandem Romberg stance and tandem Romberg with neck extension stance with a visual cue open and closes. The static balance was assessed by the center of pressure (CoP), surface electromyography root mean square (RMS) of the leg muscles according to the stance position. Results: In the CoP tests, the difference in the unit path length and circumference area was affected by the visual cue according to the stance posture (p<0.01). In the RMS tests, the difference in the tibialis anterior and medial gastrocnemius muscle was affected by visual cue in accordance with the stance posture (p<0.01). Conclusion: The visual cue and postural task affect the balance ability in normal subjects. Therefore, this study provides clinical evidence that the balance and postural control can be improved. Therapeutic intervention, such as an obstacle course, and a lower leg muscle performance program with a change in the base of support can affect the balance and postural control.

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유기물 첨가제가 마이크로 패턴 구리 전주 도금에 미치는 영향 연구 (Investigation on the Effect of Organic Additives on the Electroformed Cu Deposits with Micro-patterns)

  • 이주열;김만;이규환;임성봉;이종일
    • 한국표면공학회지
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    • 제43권1호
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    • pp.1-6
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    • 2010
  • The effect of organic additives, 1-(3-sulfoproyl)-2-vinylpyridineium hydroxide (SVH) and thiourea (TU), on the precision copper electrodeposition was investigated with optical, electrochemical and x-ray diffraction techniques. It was found that SVH played a r ole as a n accelerator and TU as an i nhibitor during the electroreduction of cupric ions in acidic Cu electroplating solution. Through electrochemical measurements, TU showed more strong interaction with cupric ions than SVH and dominated overall Cu electroplating process when both additives were present in the solution. In the case of three dimensional Cu electrodeposition on the 20 ${\mu}m$-patterned Ni substrates, SVH controlled the upright growth of Cu electrodeposits and so determined its flatness, while TU prohibited the lateral spreading of Cu in the course of pulse-reverse pulse current adaptation. With microscopic observation, we obtained the optimum organic additives composition, that is, 100 ppm SVH and 200 ppm TU during the current pulsation.

Mechanism of Formation of Three Dimensional Structures of Particles in a Liquid Crystal

  • West, John L.;Zhang, Ke;Liao, Guangxun;Reznikov, Yuri;Andrienko, Denis;Glushchenko, Anatoliy V.
    • Journal of Information Display
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    • 제3권3호
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    • pp.17-23
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    • 2002
  • In this work we report methods of formation of three-dimensional structures of particles in a liquid crystal host. We found that, under the appropriate conditions, the particles are captured and dragged by the moving isotropic/nematic front during the phase transition process. This movement of the particles can be enhanced significantly or suppressed drastically with the influence of an electric field and/or with changing the conditions of the phase transition, such as the rate of cooling. As a result, a wide variety of particle structures can be obtained ranging from a fine-grained cellular structure to stripes of varying periods to a course-grained "root" structures. Changing the properties of the materials, such as the size and density of the particles and the surface anchoring of the liquid crystal at the particle surface, can also be used to control the morphology of the three-dimensional particle network and adjust the physical properties of the resulting dispersions. These particle structures may be used to affect the performance of LCD's much as polymers have been used in the past.

전자현미경 기법을 이용한 Herpes simplex 2형 바이러스 항원의 면역학적 분석 (Immunoelectron Microscopic Localization and Analysis of Herpes simplex Virus Type 2 Antigens)

  • 김천식;오명환
    • 미생물학회지
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    • 제40권1호
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    • pp.23-28
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    • 2004
  • 단순포진 바이러스 감염을 유발하는Herpes simplex2형 바이러스의 감염에 관여하는 항원들과 중화항체 생산을 유발하는 주요 항원들의 위치를 확인하였다. Vero cell에 감염하였을 때 48시간 동안 31, 43, 59, 69 kDa 바이러스 항원들이 지속적으로 발현되었으며, 감염된 쥐에서 생산한 항체와의 반응에서는 51 kDa 항원이 가장 강한 반응을 보였다. 면역전자현미경으로 위치를 확인한 결과 colloidal gold가 바이러스 표면에 발견되는 것으로 보아 이 항원이 바이러스 표면에 존재하고 있는 것으로 확인되었다. 형광현미경 분석은 이 항원들이 감염된 세포 내에서 전반적으로 발견되었고 특히 세포 표면에서 많이 발현되고 있었다.

ELECTROCHEMICAL STUDY OF ELECTROLESS PLATING OF SILVER

  • Lee, Jae-Ho
    • 한국표면공학회지
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    • 제32권3호
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    • pp.447-451
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    • 1999
  • Silver has the highest electrical conductivity of all metals and consequently this property is an attractive feature which makes it a leading candidate for use in electronic devices. The research conducted was focused primarily on the development of a process for obtaining a deposited silver-coating onto alumina, for applications related to electrical-conducting devices and, ancillarily, catalysts. Alumina balls and plane substrates were utilized for the investigation. The coating process employed an aqueous ammoniacal silver-nitrate electrolytes with a formaldehyde solution as the reductant. Modifying additives-an activator which would be expected to promote good deposition-characteristics onto the (dielectric) substrate and an inhibitor which would obviate homogeneous reduction (precipitation) of silver was observed when the activator-containing silver-electrolyte reductant constituents were combined. However, the silver-electrolyte/reductant system with inhibitor could be employed (at 8$0^{\circ}C$) to achieve a viable (subject to future research optimization) coating on alumina. The influence of the processing temperature on the deposition process was delineated during the course of the research. The morphology of the deposited-silver on the alumina balls was assessed by SEM imaging. A tape-peel test was employed, with the plane substrates, to semi-quantitatively characterize the adhesion to the alumina.

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Characterization of B- , T- , and NK-like Cells in Nile Tilapia (Oreochromis nilotica)

  • Choi, Sang-Hoon;Oh, Chan-Ho
    • Animal cells and systems
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    • 제4권4호
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    • pp.341-345
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    • 2000
  • It has been very difficult to develop and evaluate efficient fish vaccines because fish immune cells have not been properly characterized. In this study, we investigated the cell-mediated immunological properties of B- and T-like cells in Nile tilapia (Oreochromis nilotica). Surface immunoglobulin negative ($slg^{-}$) cell population proliferated in response to mammalian T-cell mitogens PHA and Con A, while surface immunoglobulin positive ($slg^{+}$) cells responded to the B-cell mitogen LPS. The slg$^{[-10]}$ cells from hemocyanin (HC)-immunized Tilapia, compared to the non-immunized control, reacted more to PHA than to Con A. Unexpectedly, antigen (Ag)-specific response was observed in both $slg^{-}$ and $slg^{-}$cells. Regardless of HC immunization, whole leukocytes from 8 head kidney of fish showed natural killer (NK)cell activity. Especially, NK cell activity was much higher in slg$^{[-10]}$ cells than in slg$^{+}$cells, indicating the possibility that fish NK cells were not at least associated with slg$^{+}$ cell population and not activated by Ag. Further understanding of functional fish immune cells will help to evaluate and develop effective vaccines for fishes and to monitor the course of therapy In infected fishes.hes.

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In-situ microbial colonization and its potential contribution on biofilm formation in subsurface sediments

  • Lee, Ji-Hoon;Lee, Bong-Joo;Yun, Uk;Koh, Dong-Chan;Kim, Soo Jin;Han, Dukki;Unno, Tatsuya
    • Journal of Applied Biological Chemistry
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    • 제62권1호
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    • pp.51-56
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    • 2019
  • Biofilms facilitate communication among microorganisms for nutrients and protect them from predators and harmful chemicals such as antibiotics and detergents. Biofilms can also act as cores for the development of clogs in many agricultural irrigation systems and in porous media. In this study, we deployed glass units at a depth of 20 m below the ground surface in the groundwater-surface water mixing zone, and retrieved them after 4 months to investigate the potential colonization of indigenous microbial community and possible mineral-microbe assemblages. We observed the periodic formation of microbial colonies by fluorescence dye staining and microscopy, and analyzed the composition of the microbial community in both the mineral-microbe aggregates and groundwater, by next generation sequencing of the 16S rRNA gene amplicons using MiSeq platform. During the course of incubation, we observed an increase in both the mineral-microbe aggregates and content of extracellular polymeric substances. Interestingly, the microbial community from the aggregates featured a high abundance of iron redox-related microorganisms such as Geobacter sp., Comamonadaceae sp., and Burkholderiales incertae sedis. Therefore, these microorganisms can potentially produce iron-minerals within the sediment-microbe-associated aggregates, and induce biofilm formation within the groundwater borehole and porous media.