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Regulation of Calcium Concentration in Primary and Secondary Hyperparathyroidism

  • Kim, Yong-baek
    • Proceedings of the Korean Society of Veterinary Pathology Conference
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    • 2003.10a
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    • pp.35-38
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    • 2003
  • The parathyroid gland is probably the simplest endocrine organ in the body. The only cells of clinical significance are the parathyroid or chief cells. The primary signal that these cells listen to is calcium. Primary hyperparathyroidism is due to a parathyroid adenoma. The most common cause of hypercalcemia in veterinary medicine is hypercalcemia of malignancy associated with variety of neoplasms. Secondary hyperparathyroidism is due to a disease process, most commonly associated with renal and nutritional hyperparathyroidism. Primary and secondary hyperparathyroidism are markedly different in their clinical, laboratory, and pathogenic mechanism.

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A Central Limit Theorem for the Linear Process in a Hilbert Space under Negative Association

  • Ko, Mi-Hwa
    • Communications for Statistical Applications and Methods
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    • v.16 no.4
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    • pp.687-696
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    • 2009
  • We prove a central limit theorem for the negatively associated random variables in a Hilbert space and extend this result to the linear process generated by negatively associated random variables in a Hilbert space. Our result implies an extension of the central limit theorem for the linear process in a real space under negative association to a simplest case of infinite dimensional Hilbert space.

Conservation Laws and Symmetry of Differential Equations -stories about E. Noether's Theorem- (보존률과 미분방정식의 대칭성 -뇌터의 정리를 중심으로-)

  • Han, Chong-Kyu
    • Journal for History of Mathematics
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    • v.31 no.5
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    • pp.211-222
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    • 2018
  • This paper surveys the theory of symmetry group of differential equations. A proof of the simplest version of the Noether's theorem on conservation laws has been presented with examples in the classical mechanics. As a new approach to the conservation laws the theory of characteristic cohomology due to S. H. Wang and others has been presented.

Error Correcting Technique with the Use of a Parity Check Bit (패리티 검사비트를 이용한 새로운 오류정정 기술)

  • 현종식;한영열
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 1997.11a
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    • pp.137-146
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    • 1997
  • The simplest bit error detection scheme is to append a parity bit to the end of a bit sequence. In this paper an error correction technique with the use of a parity bit is proposed, and the performance of the proposed system is analyzed. The error probability of the proposed system is compared with the output of computer simulation of the proposed system. It is also compared with the error probability of error at BPSK system, and the signal-to-noise ratio gain is showed.

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A Comparative Analysis of the Measuring Standards far Intangibles and Knowledge Assets on a Monetary Base (무형/지적자산의 화폐적 측정 상관행비교)

  • 이기호;설성수
    • Journal of Korea Technology Innovation Society
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    • v.5 no.1
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    • pp.72-89
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    • 2002
  • This paper is based on a belief that, it is the simplest and best way measuring intangibles and knowledge assets on a monetary base, although there are many efforts to measure it. We analysis and compare with accounting, appraisal and valuation standards on Korean, USA and global level each. We conclude that valuation is appropriate for intangibles and knowledge assets, but we should check the standards of valuation on a social base in Korea.

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Modulation and demodulation circuits of chaos frequency shift keying using coupled synchronization and drive synchronization (결합동기와 구동동기를 이용한 카오스 주파수 천이 변.복조 회로)

  • 정종은;박진수
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.33B no.7
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    • pp.86-98
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    • 1996
  • Modulation and demodualtion circuits of chaos frequency shift keying have been implemented using chua's circuits. The modulatin circuit, which is designed ot perform the frequency-doubling by coupled synchronization wihtout changing the intrinsic characteristics of its two chaos signals generated, modulates the digital input signals. The demodulation circuit detects the digital input signals form carrier by drive synchronization. these circuits, which are simplest until now and have no restriction to their digital input amplitudes, perform the aimed functions.

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Analysis of ramp-rate limitation and current redistribution in two-strand superconducting cable (두 가닥 초전도 케이블에서 자속변화한계와 전류 재분배 해석)

  • 김석호;정상권
    • Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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    • 2003.10a
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    • pp.45-48
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    • 2003
  • Ramp-rate limitation is a serious obstacle for successful operation of fast charging and discharging magnet Ramp-rate limitation is hard to expect or fully investigate due to its electric and thermo-hydraulics couplings. In this paper, the simplest case of ramp-rate limitation is investigated with two-strand superconducting cable model considering transient heat transfer The simulation results are compared with the experimental results.

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Transmembrane Signaling Model of a Serine Chemotaxis Receptor

  • Kim, Kyeong-Kyu;Hisao Yokota;Kim, Sung-Hou
    • Proceedings of the Korean Biophysical Society Conference
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    • 1999.06a
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    • pp.20-20
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    • 1999
  • Bacterial chemotaxis receptors are some of the simplest and most studied transmembrane receptors. Their simple signaling pathway has elements relevant for understanding the mechanisms for signal recognition, transduction through the membrane, relays among the molecules in the pathway, and adaptation to a persistent signal.(omitted)

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Modified Economic Order Quantity Under the Criterion of Rate of Return

  • Tcha, Dong-Wan
    • Journal of Korean Institute of Industrial Engineers
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    • v.4 no.1
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    • pp.49-55
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    • 1978
  • This paper presents a new method, called a modified economic order quantity method, for determining the optimal inventory policy, which uses the rate of return as its decision criterion. Especially for the simplest possible inventory system with constant demand rate, no backlogging, no lead time, etc., the formula for the optimal order policy is derived. Also mentioned are the relative merits and shortcomings of this method compared to the conventional EOQ model.

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Optical Properties of Ag-Au Alloys (Ag-Au 함금의 광학적 특성 연구)

  • 노평식
    • Journal of Surface Science and Engineering
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    • v.8 no.3
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    • pp.1-4
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    • 1975
  • To study optical properties of Ag-Au alloys as the simplest homogeneous diordered alloys, the dependence of the reflectivity of Ag-Au alloys on their composition has been measured with the wave lengths ranging from 700m${\mu}$ to 900m${\mu}$. Measurements were made on mechanically polished bulk samples and the experimental results are discussed in terms of the Drude-Zender theory. The distributions on the reflectivity of various wavelengths are also discussed.

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