• Title/Summary/Keyword: Poor stability

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The Patient-Doctor Relationship in Eastern Medicine (한의학에서의 환자-의사 관계)

  • Kim, Geun-Woo
    • Journal of Oriental Neuropsychiatry
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    • v.18 no.3
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    • pp.97-112
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    • 2007
  • Objectives : This study aimed for desirable cure through the investigation of The Patient-Doctor Relationship in Eastern Medicine. Methods : Research materials is data of the patient the doctor and the Patient-Doctor Relationship in Eastern Medicine bibliography except medical theory and clinical contents. Results and Conclusion :. 1. Relatively the doctor's position origin from exorcist has it over patient's that. 2. In spite of clinical doctor, Confucian physician have Confucianism and the ethics so they set The Patient-Doctor Relationship in Eastern Medicine essentially. 3. Each of doctor(the doctor-doctor relationship) emphasize the partnership in the Patient-Doctor Relationship. 4. Patient's choice for doctor is source of the Patient-Doctor Relationship basically and the choice are prudent. 5. The patient must carry into practice psychological and body medical affairs related to health preserving 6. For desirable Patient-Doctor Relationship, doctor's inquire is considered with temper and circumstance and a consultation room are also required stability. 7. Poor Patient-Doctor Relationship are come about when patient is not trust doctor, patient is not follow doctor's order and doctor's indifference to patient.

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Development of additives for DME as a renewable energy (신재생에너지로서 DME 연료의 첨가제 개발)

  • Jang, Eunjung;Park, Cheonkyu;Yim, Eui-Soon;Jung, Choong-Sub;Lee, Bonghee
    • 한국신재생에너지학회:학술대회논문집
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    • 2011.05a
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    • pp.178.1-178.1
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    • 2011
  • DME is generally expected to be used as a promising clean alternative fuel to diesel fuel. DME is not natural product but a synthetic product that is produced either through the dehydration of methanol or a direct synthetic from syngas. As DME has no carbon-carbon bond in its molecular structure and is an oxygenate fuel, it's combustion essentially generates no soot. DME has such cetane number of 55~60 that it can be used as a diesel engine fuel. However, DME has low lubricity but a proven method to solve the poor lubricity is by adding lubricity improver. Therefore, the aim of this study is to develop lubricity improver of DME as a transport fuel in Korea. In this study, we investigated a possibility of fatty acid ester compounds as a candidate to improve DME lubricity as compared with current lubricity improver of diesel. We also evaluated quality characteristics, storage stability of DME with lubricity additives.

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A study of Facts Application in power systems for the small signal Stablity Enhancement (전력계통에서의 유연송전시스템 적용에 의한 미소신호안정도향상)

  • Baik, Seung-Do;Lee, Byong-Jun;Jang, Byong-Hun
    • Proceedings of the KIEE Conference
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    • 2000.07a
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    • pp.255-258
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    • 2000
  • The supplementalγ controls of the FACTS are designed for the enhancement of the small signal stability in power system. The designed supplementary controllers using residue are applied to SVC or TCSC for the improving the damping ratio of dominant eigen value in the New England and 39 bus test system as the sample system. The results show the validation of the supplementary controller for the enhancement of the eigenvalues which have the low frequency oscillations with poor damping ratio as the unstable problem in the sample system.

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Data Clustering Using Hybrid Neural Network

  • Guan, Donghai;Gavrilov, Andrey;Yuan, Weiwei;Lee, Sung-Young;Lee, Young-Koo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2007.05a
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    • pp.457-458
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    • 2007
  • Clustering plays an indispensable role for data analysis. Many clustering algorithms have been developed. However, most of them suffer poor performance of learning. To archive good clustering performance, we develop a hybrid neural network model. It is the combination of Multi-Layer Perceptron (MLP) and Adaptive Resonance Theory 2 (ART2). It inherits two distinct advantages of stability and plasticity from ART2. Meanwhile, by combining the merits of MLP, it improves the performance for clustering. Experiment results show that our model can be used for clustering with promising performance.

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Structure-Property Relationship of Polynorbornene derivative

  • Shin, Boo-Gyo;Shin, Jin-Bok;Mulpuri Syamkumar V.;Yoon, Do, Y.
    • Proceedings of the Polymer Society of Korea Conference
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    • 2006.10a
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    • pp.349-349
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    • 2006
  • Vinyl-polynorbornene has good thermal stability, high transparency and low dielectric constant. However, it has low solubility, poor mechanical and adhesive properties. In this work, polynorbornene derivatives were prepared by Pd(II) late transition metal catalyst. The polymers have good solubility, and are thermally stable up to$300^{\circ}C$ The glass transition temperature is decreased as the side-chain becomes bulkier. Structure-property relationship of polynorbornene derivatives measured by X-ray scattering, mechanical and electrical properties will be discussed.

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Design of the robust bilateral controller for teleoperators with modeling uncertainties (모델링 불확실성이 존재하는 원격조작기에서 강인 안정을 보장하는 양방향 제어기 설계)

  • 이형기;정명진
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.976-979
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    • 1996
  • Teleoperation is the extension of a person's sensing and manipulation capability to a remote location. Teleoperators generally can be modeled as linear transfer function indecently including modeling uncertainty. Modeling uncertainties can make the system unstable and its performance poor. Thus I'm studying about a design framework for a bilateral controller of teleoperator systems with modeling uncertainties. In this paper, a method based on the H$_{\infty}$-optimal control and .mu.-synthesis frameworks are introduced to design a controller for the teleoperator that achieves stability and performance in the presence of the modeling uncertainties..ties.inties.

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Manufacture of Lapping Wheel for Electrolytic Dressing and Evaluation of Electrolytic Characteristics (연속 전해드레싱용 래핑지석의 제작 및 전해 특성 평가)

  • 최재영;이은상;송지복
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.914-917
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    • 2000
  • Application of ceramics, carbide, ferrite has grown considerably due to significant improvement in their mechanical properties such as light weight, chemical stability , super wear resistance and electronical. Despite these character, the me of advanced material has not increased because of poor machinability. The method of using of metal bond wheel was proposed. But it is difficult that metal bond wheel can be dressed. Recently, the technology of in-process electrolytic dressing is developed to solve this problem. This method need wheel for electrolytic dressing, power supply and electrolyte. But development of wheel for electrolytic dressing is the most need. The aim of this study is development of wheel for electrolytic and appraisement of CIB-diamond lapping wheel

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Toughening of Ni Bonded $Cr_3C_2$ by Mo Particulates (Mo 입자에 의한 Ni 결합 $Cr_3C_2$의 고인성화)

  • 한동빈;장철우;백성기;박병학
    • Journal of the Korean Ceramic Society
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    • v.30 no.6
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    • pp.429-432
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    • 1993
  • Cr3C2 material is characterized by high chemical stability and poor sinterability with low strength [50~150MPa]. In his study, low melting temperature nickel powder was used to improve sinterability as well as strength. In addition, molydenum particles were added to the Ni-bonded Cr3C2 cermet pseudomatrix to increase resistance to fracture. The specimens made by hot-pressing under vacuum and strength was measured by 4-point bending. Indentation cracking and fractographic examination were conducted to study the interaction of the indentation cracks with the reinforcing particles. Toughening mechanisms and failure will be discussed in terms of crack/particle interactions and compared with previous works.

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Selective Growth of Multi-walled Carbon Nanotubes by Thermal Chemical Vapor Deposition and Their Field Emission Characteristics

  • Jeong, Se-Jeong;Lee, Seung-Hwan;Lee, Nae-Sung;Han, In-Taek;Kim, Ha-Jin;Kim, Jong-Min
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1096-1099
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    • 2005
  • Multi-walled carbon nanotubes (CNTs) grown on catalyst dots by thermal chemical vapor deposition were vertically aligned with a high population density. Such densely populated CNTs showed poor field emission characteristics due to the electrical screening effect. We reduced the number density of CNTs using an adhesive tape treatment. For dotpatterned CNTs, the tape treatment decreased the CNT density by three orders of magnitude, drastically improved the turn-on electric field from 4.8 to $1.8V/{\mu}m$, and changed the emission image from spotty to uniform luminescence. We also report long-term emission stability of dot-patterned CNTs by measuring the emission currents with time at different duty ratios.

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The Historical Analysis of Characteristics on the Clay Brick of Modern Architecture (근대 조적건축물에 이용된 점토벽돌의 재료적 특성 및 시대성 분석)

  • Kwon, Eun-Hee;Ahn, Jae-Cheol;Kang, Byeung-Hee;Kim, Ki-Soo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.11a
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    • pp.23-24
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    • 2011
  • The purpose of this study is suggesting a basic data for which scientific preservation and rehabilitation of future modern architecture through the analyzing property of clay brick used in modern architecture in a scientific way.The clay brick which is used in the early 1900s has even lower property than present clay brick because of poor plasticity technique at that time. It could be possible to property and effective stability examination of modern architecture from nondestructive testing is significantly associated with property.

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