• Journal of the Korean Institute of Telematics and Electronics
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• v.15 no.4
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• pp.33-37
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• 1978

A versatile negative resistance using one transistor, one photo-coupler and three resisters, which can be used as either a voltage controlled or current controlled negative resistance, is designed. The versatility is obtained by changing the transistor and one connection of the circuit. The negative resistance region is linear and its value can be varied by varying one of the three resistor values.

• Sim-seong Yeon-gu
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• v.25 no.1
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• pp.65-101
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• 2010

By considering the final purpose and meaning of two fairy-tales, we can summarize two things. Firstly, a woman with father complex not only positive, but also negative can easily sacrifice her femininity and her own personality as an individual. A woman with father complex has to get out of father imago. By separating from father imago, she can make her own steps to realize her own personality, namely individuation. During normal development, detachment to instinct and archetypal contents can cause problems normally to the ego consciousness. Contrary to this developmental notion, women with father complex experience problems because they are too closely attached to father archetype. Therefore, continuous excessive identification of ego with father imago or a state of ego caught by father imago leads to death of her own personality. Some women intentionally attach to father imago in order to be powerful or to receive magical power of father archetype to make compensation to her inferiority and deficiency. Weak ego wants to be stronger and superior by intentional attachment to father imago. Then, she can succeed in some tasks in life. But These successes are not by her own effort, but by magical or superhuman power of father imago. During early childhood, young girl with weak ego strongly attaches to father imago to make success and achieve goals by magical power. She wants to compensate her weak ego. But the more her ego makes successes in real life with help of father imago, the more she loses her own character or personality. Ego can be strong enough only when it is detached or separated itself from father imago. In other side, there is a woman destined to realize request by the father imago. She is chosen by the collective unconscious, though she try to run away from dominant power. In this case, ego of selected woman is not weak. She is destined to be a heroine. She knows that she has to complete every task given to her to realize what father imago wants, and she will not own any of her products at all. She is a real or true heroine. She wants to avoid her destiny, but she can't and should not do it. Secondly, a woman with father complex is called for again to save father imago or to solve problems of father imago. In this case, father imago of a woman should be considered to be related to the collective conscious. Therefore, it is said that all women with father complex are invited for healing the society or the collective consciousness. To complete this request, she has to heal herself by recovering her femininity. The healing power is based on the maternal receptive capacity. In modern society, the women are always demanded to be a social being. These social demands can make women caught by father complex. In this sense, number of women with father complex are increasing. Through the understanding of two fairy-tales, increased number of women with father complex should be easily considered as events at personal level, but seriously considered as a phenomenon reflecting problems in the collective consciousness of our age. In the other hand, all women with father complex are invited to solve the problem of modern society. She will be able to realize her own individuation without being possessed by father imago, to save our society and to become a heroine of our age.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.15 no.6
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• pp.590-598
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• 2004

An active capacitance circuit which employs series feedback network for the implement of negative resistance and low noise operation is analyzed in depth and its application to low noise active RF BPF's is discussed. Whereas many authors reported a lot of circuits that embody negative resistance circuit most of them have concerns for the equivalent resistance and reactance value at the center frequency. In this case, it could be possible to face a problem that the negative resistance circuit becomes unstable, or have poor flatness in passband because of insufficient forecast for the negative resistance values as the frequency goes higher or lower. In this paper, we extracted the exact equivalent values of this circuit and analyzed the RF characteristics with the varying the values of active devices and feedback circuits and presented the method that the flatness of passband can be improved. We have designed a 4-pole active BPF, which has the bandwidth of 60 ㎒, 0.67 ㏈ insertion loss, 0.3 ㏈ ripple, and noise figure of 3.0 ㏈ at 1.99 ㎓ band.

• Women's Health Nursing
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• v.15 no.3
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• pp.205-215
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• 2009

Purpose: This study aims to provide foundational data for preparing for educational programs on the role of a father that are designed to help primiparous spouses carry out the paternal role successfully. Methods: This study was conducted in two OB/GYN clinics and a study sample of 277 primiparous spouses who satisfied the selection criteria was selected. Results: Of the correlation among the childhood experiences, paternal attachment and role of a father of the subjects, the childhood experiences had a positive correlation with the paternal-infant attachment and the role of a father. The paternal-infant attachment and the role of a father also had a positive correlation. Conclusion: An infant is influenced primarily by his or her parents, who will have immense influences on the child's growth and development. Since the paternal-infant attachment is closely related to the role of a father, the development of positive paternal-infant attachment must be preceded in order for a primiparous spouse to carry out the role of a father successfully. Therefore, the development of nursing intervention programs is needed to foster the proper understanding of the role of a father, accommodate the practical needs of primiparous spouses and nurture the paternal-infant attachment for the promotion of realistic, successful role of a father.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.26 no.3
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• pp.283-291
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• 2015

In this paper, a negative impedance converter, the key element of non-Foster matching to enhance the bandwidth of matching high Q-factor passive element, is presented. Proposed negative impedance converter is implemented by the topology of Linvill's transistor negative impedance converter circuit. It is hard to forecast the operation of negative impedance circuit, because it is composed of gain element and positive feedback. Therefore the negative impedance circuit is implemented by hybrid type beforehand to check out the feasibility and it is designed by integrated circuit. The integrated circuit is fabricated by commercial $0.18{\mu}m$ SiGe BiCMOS process, and non-Foster matching is observed at 700~960 MHz band by cancelling the target reactance.

• Issues in Feminism
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• v.9 no.1
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• pp.79-111
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• 2009

This paper analyses the stories of 38 women of the in-depth survey, enforced by the Institute for Gender Research, Seoul National University. This survey focused on motherhood, but many memories were told by most of women. That shows strong existence of fatherhood in the process of personality formation in Korean society. The stories of 38 women could be divided into 5 types: (1) 5 cases where there is no mention about father; (2) 5 cases where simple and negative mentions are made about fathers; (3) 6 cases where no instrumental fatherhood but expressive fatherhood is found; (4) 11 cases of women who experienced both instrumental and expressive fatherhood, and (5) 12 cases (1 case is overlapped with one of the 3rd type) where the relationship between daughter and father is very close. The analyses denies the dichotomy of instrumental and expressive fatherhood, and the theories of "New Men" with expressive fatherhood who appeared as a result of social change and feminist movement. It also shows the various aspects of expressive fatherhood, and that close relationship between father and daughter plays an important role for the empowerment of daughter.

• Journal of the Korean Institute of Telematics and Electronics
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• v.10 no.2
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• pp.7-15
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• 1973

The operation behaviors of negative-resistance multivibrators. are described. The oscillation phenomena in monostable and bistable mode negative-resistance circuits are analyzed by using a analog computer. It is presented that voltage-controlled negative -resistance switching circuits may be in oscillation state for a time or parmanently by adding the bias voltage or trigger pulse. The results show that the care must be taken for this fact in the constructions of negative resistance switching circuits.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.28 no.12
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• pp.933-940
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• 2017

A wireless power transfer system with a negative impedance converter(NIC) was designed and tested. The system was investigated to identify the effects of ferrites and conductors. To improve the power transfer efficiency(PTE), the Q-factor of the transmitter was enhanced by the negative resistance generated by the NIC. The NIC was composed of an Op-Amp and resistors. The negative resistance was obtained with respect to a resistor connected in a feedback loop. The dimension of the Tx coil was $250mm{\times}250mm{\times}0.8mm$. The impedance and Q-factor were $31+j1874{\Omega}$ and 60, respectively. The negative resistance was selected to be $30{\Omega}$, and the Q-factor was increased to 900 by reduction of the transmitter resistance, which was about 15 times higher than that of a conventional transmitter. The measured PTE was greatly improved in comparison to that of a conventional system. These results demonstrate that the PTE is enhanced by using the NIC.

• KOMUNHWA
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• no.52
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• pp.7-27
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• 1998

• Monthly Duck's Village
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• s.82
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• pp.96-99
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• 2010