• Bulletin of the Korean Mathematical Society
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• v.47 no.5
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• pp.1077-1087
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• 2010

Anderson-Smith [1] studied weakly prime ideals for a commutative ring with identity. Blair-Tsutsui [2] studied the structure of a ring in which every ideal is prime. In this paper we investigate the structure of rings, not necessarily commutative, in which all ideals are weakly prime.

• Journal of English Language & Literature
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• v.56 no.2
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• pp.357-382
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• 2010

Motherhood as an ideological construction has been regarded as an oppressing apparatus enforced by patriarchism. On the one hand, demystifying motherhood helps expose dehumanization of women, and accordingly liberate women from being an ideal mother. On the other hand, however, feminists' attempts to unearth the distorted images of mothers result in devaluation of such values as love and sacrifice attached to motherhood. "Tell Me a Riddle" by Tillie Olsen, who is a declared socialist as well as a feminist, occupies a significant position in a sense that it neither condemns motherhood as evil nor idealizes it. Through the main character, Eva, it examines the meaning of motherhood in a way that a real mother experiences it in a real life, and thus Olsen challenges the readers to ponder upon the mothers' dilemma: a conflict between a desire for self-fulfillment and sacrifice for others. Eva, a mother of seven grown-up children, and now dying, shows an ambivalent attitude toward motherhood. She realizes that she is a victim of idealized motherhood in that, toward the end of her life, she feels uncomfortable accepting her personal desires as they are. Yet at the same time, she appreciates her experiences as a mother in that she could consume her passion for the ideals as she has spent her youth working toward, trying to construct an idealistic socialist country. Eva's real ideal, as a human being, is to live "with" others, not just "for" others. In other words, she does not want to allow herself to live only for others in the name of the mother because she does not have any alternatives to do otherwise. Rather, she desires to live a life of voluntary sacrifice and love. In this way, through Eva, Olsen tries to help us to construct a community where we--not just mothers-can live "with" others.

• Bulletin of the Korean Space Science Society
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• 2005.10a
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• pp.30-30
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• 2005

• Bulletin of the Korean Space Science Society
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• 2006.10a
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• pp.50-50
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• 2006

• Bulletin of the Korean Space Science Society
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• 2007.04a
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• pp.63-63
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• 2007

• Bulletin of the Korean Space Science Society
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• 2007.04a
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• pp.64-64
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• 2007

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.17 no.1
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• pp.239-260
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• 2023

The underwater acoustic wireless communication networks are generally formed by the different autonomous underwater acoustic vehicles, and transceivers interconnected to the bottom of the ocean with battery deployed modems. Orthogonal frequency division multiplexing (OFDM) has become the most popular modulation technique in underwater acoustic communication due to its high data transmission and robustness over other symmetrical modulation techniques. To maintain the operability of underwater acoustic communication networks, the power consumption of battery-operated transceivers becomes a vital necessity to be minimized. The OFDM technology has a major lack of peak to average power ratio (PAPR) which results in the consumption of more power, creating non-linear distortion and increasing the bit error rate (BER). To overcome this situation, we have contributed our symmetry research into three dimensions. Firstly, we propose a machine learning-based underwater acoustic communication system through long short-term memory neural network (LSTM-NN). Secondly, the proposed LSTM-NN reduces the PAPR and makes the system reliable and efficient, which turns into a better performance of BER. Finally, the simulation and water tank experimental data results are executed which proves that the LSTM-NN is the best solution for mitigating the PAPR with non-linear distortion and complexity in the overall communication system.

• Cartoon and Animation Studies
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• s.40
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• pp.211-242
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• 2015

Recently, the shrunk influence of printed cartoon has been superseded by the influence of Webtoon in the comic industry. Webtoon has gained popularity and interest by being served on internet quickly and easily. Their novel material and sympathetic topic have made it possible for many Webtoons to be reproduced into tv dramas and movies, so, the influence of them has been increased as the copyright industry of culture contents industry. The increasing interest for Webtoon has induced academic studies for the subject. Among the various studies in need on Webtoon, the most important study topics in need are 'Story' and 'Quality' which are criterion for readers to choose Webtoons to read. To create the Webtoon that are great at 'Story' and 'Quality', the study on plots should be preceded, which recast episodes organically through a logical causal relationship. Therefore, in this study, the plots of Webtoons have been analyzed through Rescue plot in and the Riddle plot in selected from the Kang Full's Webtoon series, 'mystery psychology horror season', which are evaluated as the great work at 'Story' and 'Quality.' The analysis was implemented based on Tobias' theory which suggests 'the characteristics of plot' and '8 principles for good plot.' First, Kang Full's webtoons were analyzed through 'the characteristics of plot' and '6 principles for good plot' which is modified from '8 principles of good plot' based on Tobias' theory. Applicability was checked if Tobias' theory could be applied to Kang Full's Webtoon checking through the scenes and contents of the Webtoon. (1) Tobias' 'the characteristics of plot' could be applied to both Rescue plot in and the Riddle plot in . (2) Among '6 principles for good plot', 5 principles are shown in The Lighting Store and all of the 6 principles in Neighbor. The result shows that Tobias theory could be applied to the plot of Webtoon. The fact that Kang Full's Webtoons are composed in a formulaic form could be identified through 'the characteristics of plot' and '6 principles for good plot' shown in Rescue plot in and the Riddle plot in .

• Journal of Animal Environmental Science
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• v.13 no.1
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• pp.1-12
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• 2007

Stored animal manure is considered as a significant agricultural source of methane $(CH_4)$ and nitrous oxide $(N_2O)$ which have 23 and 297 times higher global warming effect when compared to carbon dioxide $(CO_2)$. Uncertainties caused by lack of understanding physical and biochemical environment in stored animal manure and by errors of emission measurement methods, even though many researches measuring $CH_4\;and\;N_2O$ emissions from stored manure have been conducted for a few decades. In this paper, general information of $CH_4\;and\;N_2O$ generation and emissions from stored animal manure and the measurement methods for quantifying $CH_4\;and\;N_2O$ emissions are discussed.

• The Journal of the Convergence on Culture Technology
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• v.3 no.4
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• pp.35-42
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• 2017

Behavior Economics, a branch of social sciences, which seeks to find the answers about why man sometimes does absurd economy-related things, came into existence through combining economics and psychology. To the contrary of the traditional economics', behavior economics has developed by explaining how man makes economy-related choices by means of applying their own cognitive principles. Individuals lack the information on the goods and services in the market, and don't know how to make best use of the obtained information, failing to achieve maximum utility. Therefore, man's rationality is meant to be confined to bounded rationality. It is the very Heuristic that does work in the process of this simplified decision making process. Heuristic utilizes established empirical notion and specific information, and that's why there can be cognitive biases sometimes leading to inaccurate judgment. As Oral Literature is basically based on heavy guesswork and perceptual biases of general public, it is imperative to contemplate oral literature in the framework of Heuristic of behavior economics. This thesis deals with thinking types and behavioral patterns of the short-piece proverbs, folklore language-game riddles on the basis of personal or public memory. As a result, it is evident that proverbs point out biases arising from human behaviors, while riddles make full or active use of biases.