• Title/Summary/Keyword: Uncertainty principle

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A Study on The Process of Design Idea - Focused on An Expansion and A Diversity of Idea (디자인 아이디어 전개에 관한 연구 - 사고의 확장성과 다의성을 중심으로)

  • 이한성
    • Archives of design research
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    • v.17 no.2
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    • pp.67-76
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    • 2004
  • The main stream of consumption about the products is tend to transfer from low price value with mass production, to the second value of products, such as pleasure, familiarity, humor, and metaphor. This second value is closely connected to a redundancy which are also related to modern science as well as product design. These terms such as matrials, identity, and gravitation, disappeared gradually, and these are substituted with an uncertainty principle, a fortuity, a contradictory concept, entropy etc. In sum this study focuses on the tendency of intelligency issue the recent design trends. This result shows that The 4th Column Thinking and Formation System which is related to an expansion and diversity of design intellectual ideas.

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Practical Implications on Delivery of Goods under the Rotterdam Rules (로테르담규칙상 운송물 인도와 실무상 유의점)

  • YANG, Jung-Ho
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.74
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    • pp.55-79
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    • 2017
  • The Rotterdam Rules introduces new issues that have been ignored by previous international transport conventions. Among them, provisions on delivery of goods have been a much debated topic as it deviate from well established principles. Rotterdam Rules provides several alternatives in order to resolve uncertainty regarding delivery practice. The carrier have to make a resonable effort to deliver the goods following the required procedure which is different from transport document issued. Where the goods are not deliverable, the carrier could discharge from its obligations to deliver the goods when he deliver the goods by delivery instruction of shipper. In addition, he can take actions reasonably required according to circumstances if it is impossible to deliver the goods. These alternatives are not ideal, but they seem to be partly helping to solve practical problems arising in the process of delivery. However the delivery regime under the Rotterdam Rules could cause confusion in the traditional delivery principle. On the other hand, it puts a new burden on the parties concerned. In conclusion, the parties concerned should consider practical implications in issuing and transferring transport document as well as requesting and instructing delivery of goods.

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Theoretical Foundations and a Conceptual Model of Therapeutic Readers' Advisory Services (치료적 독자상담의 이론적 근거와 개념적 모형에 관한 연구)

  • Lee, Kee-Myung;Lee, Jae-Whoan
    • Journal of Korean Library and Information Science Society
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    • v.43 no.1
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    • pp.53-72
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    • 2012
  • The purposes of this research are to search and analyze information theories which are useful to approach bibliotherapy in terms of 'therapeutic' readers' advisory service, and to propose a conceptual model of 'therapeutic' readers' advisory service on the basis of such theoretical foundations. To the end, Dervin's sense-making theory and Kuhlthau's ISP model are introduced and applied to the conceptual model. The conceptual model is profoundly based on Dervin's situation-gap-use metaphor and Kuhlthau's Uncertainty Principle.

Neural Network based Three Axis Satellite Attitude Control using only Magnetic Torquers

  • Sivaprakash, N.;Shanmugam, J.;Natarajan, P.
    • 제어로봇시스템학회:학술대회논문집
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    • 2005.06a
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    • pp.1641-1644
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    • 2005
  • Magnetic actuation utilizes the mechanic torque that is the result of interaction of the current in a coil with an external magnetic field. A main obstacle is, however, that torques can only be produced perpendicular to the magnetic field. In addition, there is uncertainty in the Earth magnetic field models due to the complicated dynamic nature of the field. Also, the magnetic hardware and the spacecraft can interact, causing both to behave in undesirable ways. This actuation principle has been a topic of research since earliest satellites were launched. Earlier magnetic control has been applied for nutation damping for gravity gradient stabilized satellites, and for velocity decrease for satellites without appendages. The three axes of a micro-satellite can be stabilized by using an electromagnetic actuator which is rigidly mounted on the structure of the satellite. The actuator consists of three mutually-orthogonal air-cored coils on the skin of the satellite. The coils are excited so that the orbital frame magnetic field and body frame magnetic field coincides i.e. to make the Euler angles to zero. This can be done using a Neural Network controller trained by PD controller data and driven by the difference between the orbital and body frame magnetic fields.

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Precision Stage Using A Novel Contact-Free Planar Actuator Based on Combination of Electromagnetic forces (전자기력 조합에 기초한 평면 구동기를 이용한 자기 부상 방식 초정밀 스테이지)

  • Jeong, Gwang-Seok;Baek, Yun-Su
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.25 no.11
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    • pp.1863-1872
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    • 2001
  • In this Paper, we suggest the precision stage using a novel non-contact planar actuator that utilizes an interaction between an array type of air-core solenoids and permanent magnets. The former with axes arranged in the mutually orthogonal direction is fixed on the stator and the latter with the same polar direction is attached below the stage. The promising magnetic structure has little uncertainty such as hysteresis loss caused by ferromagnetic material, then it is simple to quantify the magnetic phenomenon. And all the magnetic forces are transmitted through narrow air-gap between the coil and the permanent magnet, therefore the structure can be highly compacted. Furthermore, the stage or plate can be perfectly isolated from the stator without any wire connection, leading to diminish the generating possibility of wear particles due to mechanical contact. Then. it is estimated that the proposed operating principle is very suitable for work requiring high accuracy and cleanness. or general-purpose nano stage. The main issues rebated to the plate driving are discussed here.

Mathematical Modeling Analysis of the Human Visual Filters (인간시각필터의 수학적 모델링 해석)

  • Lee, Jeok-Sik
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.38 no.6
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    • pp.617-629
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    • 2001
  • The mathematical models for the receptive field of simple cells in the human visual system have been developed in the areas of psychophysics, physiology and neuroscience. The various models used in the fields of digital image processing and computer vision include Gator complex, Gaussian derivatives and Hermite functions. In this paper, the effective widths for the models are derived based on the space-frequency uncertainty principle. The center frequency and parameters related to the models are determined in accordance with the human visual filters, and resultant bandwidths are analyzed. Furthermore, the characteristics of space and frequency for the models is analyzed and compared to the experimental data obtained from psychophysics.

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A Study on the Clauses of Insurance Contracts on Incoterms(R) 2010 (Incoterms(R) 2010의 보험계약조항에 관한 고찰)

  • Kim, Hee-Kil
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.53
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    • pp.135-153
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    • 2012
  • Incoterms is a standard transaction terms and conditions which is established to provide goods delivery, cost and risks between the seller and the buyer as a principle concerned. Incoterms is made of international rules about regular uses of transaction terms and condition. It removes uncertainty of misunderstanding and applying rules, commercial customs and etc, between nations. Incoterms does not have an enforcement like an unified rules or an agreements established between different nations. Therefore, it is just considered as a standard formal terms and conditions from International Chamber of Commerce. For those reasons, validity of Incoterms applies only when parties of contract come to an agreement not by officially adopted or applied by law in each nation. Incoterms 2010 contains specific and clear articles which is fixed version of incoterms 2000, it has insufficient points on insurance contract article. Though, insurance contract belongs to sales contract, it sustains independence itself. It is difficult to sustain perfection until establishment of insurance contract and expiration by fixing the articles. As a result, it is necessary for sellers and buyers take a full responsibility of making complete insurance contract. This paper is written for those reasons in this filed.

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Electrophoretic Tissue Clearing and Labeling Methods for Volume Imaging of Whole Organs

  • Kim, Dai Hyun;Ahn, Hyo Hyun;Sun, Woong;Rhyu, Im Joo
    • Applied Microscopy
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    • v.46 no.3
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    • pp.134-139
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    • 2016
  • Detailed structural and molecular imaging of intact organs has incurred academic interest because the associated technique is expected to provide innovative information for biological investigation and pathological diagnosis. The conventional methods for volume imaging include reconstruction of images obtained from serially sectioned tissues. This approach requires intense manual work which involves inevitable uncertainty and much time to assemble the whole image of a target organ. Recently, effective tissue clearing techniques including CLARITY and ACT-PRESTO have been reported that enables visualization of molecularly labeled structures within intact organs in three dimensions. The central principle of the methods is transformation of intact tissue into an optically transpicuous and macromolecule permeable state without loss of intrinsic structural integrity. The rapidly evolving protocols enable morphological analysis and molecular labeling of normal and pathological characteristics in large assembled biological systems with single-cell resolution. The deep tissue volume imaging will provide fundamental information about mutual interaction among adjacent structures such as connectivity of neural circuits; meso-connectome and clinically significant structural alterations according to pathologic mechanisms or treatment procedures.

Robust Design of Coordinated Set Planning with the Non-Ideal Channel

  • Dai, Jianxin;Liu, Shuai;Chen, Ming;Zhou, Jun;Qi, Jie;Liang, Jingwei
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.8 no.5
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    • pp.1654-1675
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    • 2014
  • In practical wireless systems, the erroneous channel state information (CSI) sometimes deteriorates the performance drastically. This paper focuses on robust design of coordinated set planning of coordinated multi-point (CoMP) transmission, with respect to the feedback delay and link error. The non-ideal channel models involving various uncertainty conditions are given. After defining a penalty factor, the robust net ergodic capacity optimization problem is derived, whose variables to be optimized are the number of coordinated base stations (BSs) and the divided area's radius. By the maximum minimum criterion, upper and lower bounds of the robust capacity are investigated. A practical scheme is proposed to determine the optimal number of cooperative BSs. The simulation results indicate that the robust design based on maxmin principle is better than other precoding schemes. The gap between two bounds gets smaller as transmission power increases. Besides, as the large scale fading is higher or the channel is less reliable, the number of the cooperated BSs shall be greater.

Connecting Value and Costs

  • Eddy David M.
    • 대한예방의학회:학술대회논문집
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    • 1994.02b
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    • pp.84-86
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    • 1994
  • AS A SOCIETY, we are in conflict with ourselves about the cost of health care. 1 On one hand, we want the best care possible, regardless of cost. On the other hand, we are not willing to pay the cost of the care we want. Our conflict parallels a flaw in the medical marketplace. An essential condition for achieving an equilibrium between cost and value is that the two must be connected through decisions. When people decide what products and services (goods) they want, they must not only see the value they will receive, but they mast also be responsible for the costs. Because of a variety of features of the medical marketplace-most notably third-party coverage, third-party advice, and uncertainty about outcomes-the required connection between value and cost is severed. The result is what we see. One side of our collective mind demands more services while the other side cries that costs are too high. Resolving our conflict will require connecting value to cost. An essential step in accomplishing this will be to incorporate costs in practice policies. 1 As controversial as that thought might seem (the great majority of practice policies currently do not take costs into account except in the most rudimentary way), arriving at the conclusion is the easy part. A more difficult issue is how to implement the goal of connecting value to cost. Suppose we agree that, in principle, costs should be considered when practice policies are designed, and that an activity should be recommended and covered only if its health outcomes (benefits minus hanns) are deemed to be worth its costs. The next questions are, Who should do the deeming? What should the deemers be asked?

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