• Proceedings of the KIEE Conference
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• summer
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• pp.1403-1405
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• 2004

The method proposed by Carson contains indefinite complex integral which simulates earth return current. Although the Carson solution is proposed with power series, the solution is limited and valid at special range of frequency. We proposed a simplified Carson solution by modelling earth current path analytical method using ground transmission line return current. In this paper, we studied on trying to find the equivalent distance for earth current return path.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.2
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• pp.225-231
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• 2009

In this paper, it is shown that Carson's equation can still be applied for the calculation of the series reactance of transmission lines with no ground return current as well as the one with ground return. It is proved in the following method. First two voltage drop equations for three-phase three wire transmission line are derived, one without considering ground return and the other using Carson's equation. The impedance matrix of the two equations are different from each other. But if we put the condition of zero ground current, $I_a+I_b+I_c=0$, those two equations becomes the identical equations. Therefore even a transmission line is not grounded, its line parameters can still be obtained using the Carson's equation. It has been confused whether or not Carson's equation can be used for an ungrounded system. It is because where ever Carson's equation is shown in the book, it also says that the system has ground return current paths as a premise. It is also verified with EMTP studies on the test circuit.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.169-178
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• 2008

In this paper, it is shown that Carson's equation can still be applied for the calculation of the series reactance of transmission lines with no ground return current as well as the one with ground return. It is proved in the following method. First two voltage drop equations for three-phase three wire transmission line are derived, one without considering ground return and the other using Carson's equation. The impedance matrix of the two equations are different from each other. But if we put the condition of zero ground current, $I_a+I_b+I_c=0$, those two equations becomes the identical equations. Therefore even a transmission line is not grounded, its line parameters can still be obtained using the Carson's equation. It has been confused whether or not Carson's equation can be used for an ungrounded system. It is because where ever Carson's equation is shown in the book, it also says that the system has ground return current paths as a premise. It is also verified with EMTP studies on the test circuit.

• Journal of English Language & Literature
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• v.56 no.6
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• pp.1027-1045
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• 2010

What does an Irish modernist have in common with a contemporary Canadian classicist? The present paper attempts an unlikely comparison to bring out previously unnoticed facets of meaning by analyzing James Joyce's Ulysses (1922) and Anne Carson's Autobiography of Red: A Novel in Verse (1998) together. While Joyce and Carson write at different times and in different places, I suggest that they are also remarkably similar. First, both of these authors can be said to have re-invented the genre of the novel in the two aforementioned works. Second, they both set themselves the task of re-writing a Greek text, in Joyce's case Homer's Odyssey, in Carson's case Stesichoros's Geryoneis, transferring it to their own present reality. The focus of the article is to read Ulysses and Autobiography of Red together in light of their engagement with colonialism. This concept is central to both novels, as literary critics have noted. However, rather than examining the concept in the traditional sense, I use it as a platform to examine the roles that sociolinguistic colonialism, and what I call literary colonialism, play in these two innovative and groundbreaking novels. Finally, I analyze the ways in which these authors position themselves against the tradition. Comparing works by Carson and Joyce allows me to arrive at conclusions that transcend their time and apply to humanity in general.

• Proceedings of the KSR Conference
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• 2004.06a
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• pp.1308-1312
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• 2004

Transmission line impedance calculation has been tried for obtaining exact value. The method proposed by Carson contains indefinite complex integral. Although the Carson solution is proposed with power series, the solution is limited and valid at special range of frequency. In this paper, we proposed a simplified Carson solution by analytical method using ground transmission line return current. This method calculate the transmission line impedance easily.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.1
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• pp.41-46
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• 2011

The mutual inductances between power line and communication line above ground are studied in this paper. A long power line is discussed and the terminal effect above ground is taken into account. By applying Carson's method, the analytical solution to mutual inductances is derived and numerically evaluated. The analytical solutions derived in this paper are valid for both oblique and parallel proximity between power and communication lines, and the numerical results are compared with previous published results.

• Archives of design research
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• v.14 no.1
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• pp.167-176
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• 2001

In 21st century as a digital era, visual communication design becomes more important than any other period. Recently, traditional typographic design for the communication with emphasis on the readability and experimental typographic design with emphasis on the expressionism contrary to the traditional concept coexists. There have been experiments on the typography with the establishment of modem art concept in the past: this trend is more obvious since the 1980s with the technological development of desktop computer. In this study, experimental typography works by David Carson who is one of the most representative graphic designers of the 1990s are analyzed in detail, and problems and prospects of this experimental typography in a digital era contrary to the traditional viewpoint we discussed.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.1407-1412
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• 2004

Impedance calculations of electric railway traction systems is essential to define characteristics and to design it. The self impedance is defined voltage drop rate per unit length, the mutual impedance is represented as a voltage induced to transmission line from transmission line. The self and the mutual impedance are influenced by ground return currents. The earth is considered as a semi-infinitely extended non-ideal conductor. The current of transmission line produces earth current induced magnetically and it flow through a path having minimum impedance. Carson proposed the impedance calculation formula using wave equations and magnetic field equations. Though the formula have an improper equation, that is still used as a standard impedance calculation method. This paper introduced an impedance calculation method that the complex depth of earth return method assumes that the current in conductor returns through an imagined earth depth path located directly under original conductor at a depth of. In this paper, we showed that this proposed method has a closed form and is easier than Carson's.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.49 no.4
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• pp.223-227
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• 2023

A midline or median cleft lip is rare, and a midline cleft associated with a unilateral cleft and a proboscis-like structure is rarer still. We present a case managed at our center in which a 5-year-old male had a median cleft of the upper lip with an associated 'proboscis' and a microform unilateral cleft lip.

• Bulletin of the Korean Mathematical Society
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• v.60 no.2
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• pp.361-388
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• 2023

In this study, we deal with American lookback option prices on dividend-paying assets under a stochastic volatility (SV) model. By using the asymptotic analysis introduced by Fouque et al. [17] and the Laplace-Carson transform (LCT), we derive the explicit formula for the option prices and the free boundary values with a finite expiration whose volatility is driven by a fast mean-reverting Ornstein-Uhlenbeck process. In addition, we examine the numerical implications of the SV on the American lookback option with respect to the model parameters and verify that the obtained explicit analytical option price has been obtained accurately and efficiently in comparison with the price obtained from the Monte-Carlo simulation.