• Journal of Korean Philosophical Society
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• v.145
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• pp.217-244
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• 2018

This paper reviews how $J{\ddot{u}}rgen$ Moltmann embraces and transforms the philosophy of Ernst Bloch. For what are the hopes of the two thinkers who presuppose opposing worldviews? This question will provide a good opportunity to look at how different religious types, based on different worldviews in modern philosophy of religion, can understand and communicate with one another. Ernst Bloch was a philosopher who originally interpreted Judeo-Christian thought through Marxism and Persian Dualism and helped to carry out the intrinsic criticism of the doctrine of Christian eschatology by developing atheism of Christianity into a philosophy of hope. Bloch and Moltmann deal with the concepts of future, humanity, nation, and hope in the eschatological horizon, but their worldviews are so different. For example, the connection between the Beginning and Ending, Disjunction or Continuation, the Core of Existence and Resurrection, Messianism and Marxism, Atheism and Theism, Persian Dualism and Judeo-Christian Monotheism. Therefore, a one-sided interpretation that ignores worldview differences in the hopes of these two thinkers should be avoided. Moltmann actively embraced the Messianism of the Jewish thinker, Bloch, by excluding Marxism, made the spectrum of broad-minded horizons diminished in the union of Messianism and Marxism. Moltmann replaced the utopian possibilities of matter in the Ontology of Not-Yet-Being, with the resurrection of Christ, who was crucified, and with the God of Creation and the God of Exodus. By overthrowing the position of atheism in Christianity, which was very important for Bloch, with the system of Trinitarian Monotheism, it resulted in the disconnection and conflict between the Old Testament and the New Testament, especially the ignorance of the tension between God the Lord and Jesus Christ.

• The Korean Publising Journal, Monthly
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• s.168
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• pp.17-17
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• 1995

• Journal of the Computational Structural Engineering Institute of Korea
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• v.32 no.4
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• pp.241-247
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• 2019

A band gap refers to a certain frequency range where the propagation of mechanical waves is prohibited. This work focuses on engineering three-dimensional Kelvin lattices having external band gaps at low audible frequency ranges using a gradient-based design optimization method. Elastic wave propagation in an infinite periodic lattice is investigated by employing the Bloch theorem. We model the ligaments using a shear-deformable beam model obtained by consistent linearization in a geometrically exact beam theory. For a given lattice topology, we enlarge band gap sizes by controlling the configuration of the beam neutral axis and cross-section thickness that are smoothly parameterized by B-spline basis functions within the isogeometric analysis framework.

• Journal of Korean Philosophical Society
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• v.147
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• pp.117-146
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• 2018

This paper discusses, whether religion is possible even in the age of artificial intelligence, and whether humans alone are the subject of religious faith or ultra intelligent machines with human minds can be also subjects of faith. In order for ultra intelligent machines to be subjects of faith in the same conditions as humans, they must be able to have unique characteristics such as emotion, will, and self-consciousness. With the advent of ultra intelligent machines with the same level of cognitive and emotional abilities as human beings, the religious actions of artificial intelligence will be inevitable. The ultra intelligent machines after 'singularity' will go beyond the subject of religious belief and reign as God who can rule humans, nature and the world. This is also the common view of Morabeck, Kurzweil and Harari. Leonhart also reminds us that technological advances should make us used to the fact that we are now 'gods'. But we fear we may face distopia despite the general affluence of the 'Star Trec' economy. For this reason, even if a man says he has learned the religious truth, one can't help but wonder if it is true. Kant and Bloch are thinkers who critically reflected on our religious ideals and highest concept in different world-view premises. Kant's concept of God as 'idea of pure reason' and 'postulate of practical reason', can seem like a 'god of gap' as Jesse Bering said earlier. Kant recognized the need for religious faith only on a strict basis of moral necessity. The subjects of religious faith should always strive to do the moral good, but such efforts themselves were not enough to reach perfection and so postulated immortality of the soul. But if an ultra intelligent machines that has emerged above a singularity is given a new status in an intellectual explosion, it can reach its morality by blocking evil tendencies and by the infinite evolution of super intelligence. So it will no longer need Kant's 'Postulate for continuous progress towards greater goodness', 'Postulate for divine grace' and 'Postulate for infinite expansion of the kingdom of God on earth.' Artificial intelligence robots would not necessarily consider religious performance in the Kant's meaning, and therefore religion will also have to be abolished. Ernst Bloch transforms Kant's postulate to be Persian dualism. Therefore, in Bloch, even though the ultra intelligent machines is a divine being, one must critically ask whether it is a wicked or a good God. Artificial intelligence experts warn that ultra intellectual machine as Pandora's gift will bring disaster to mankind. In the Kant's Matrix, a ultra intelligent machines, which is the completion of morality and God itself, may fall into a bad god in Bloch's Matrix. Therefore, despite the myth of singularity, we still believe that ultra intelligent machines, whether as God leads us to the completion of one of our only religious beliefs, or as bad god to the collapse of mankind through complete denial of existence.

• The Journal of Natural Sciences
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• v.17 no.1
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• pp.39-50
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• 2006

There are two relaxation frequencies in orthogonally polarized dual-mode solid-state lasers. Complex dynamic behaviors such as chaos can be observed by modulating orthogonally polarized dual-mode solid-state lasers. In this paper, we derived Maxwell-Bloch equations by considering anisotropy explicitly in laser-atom interactions and explained the complex nonlinear dynamical behaviors.

• Electrical & Electronic Materials
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• v.1 no.3
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• pp.228-234
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• 1988

본 논문에서는 자기 버블 및 VBL 기억 소자의 기본적인 동작원리 및 사용되는 재료 특히 자기 가넷 박막의 설계와 제조과정을 살펴보았다. 자기 가넷의 가장 큰 장점중의 하나는 응용 분야에 따라 원하는 자기적 특성을 갖는 박막을 쉽게 성장시킬 수 있다는 장점이다. 그러나 현재의 결과로는 0.3.mu.m 이하의 직경을 갖는 버블 박막은 가넷을 이용하여서는 제조하기 힘들므로 그보다 작은 버블을 원하면 육방정계 페라이트나 비정질 합금을 이용하여야 할 것으로 보인다. VBL소자의 경우 0.5.mu.m직경의 버블로 1Gbit/$cm^{2}$의 기록 밀도가 예상되므로 가까운 장래에는 가넷이외의 재료를 생각할 필요는 없을 것이다. 현재의 연구 추세로는 0.3.mu.m직경의 버블을 이용한 버블 소자가 개발되면 또는 그 이전에라도 VBL 소자가 버블 소자를 대치할 것으로 보여 한동안 가넷이외의 재료에 대한 연구는 활발하지 않을 것으로 전망된다.

• Korean Journal of Optics and Photonics
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• v.8 no.3
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• pp.204-208
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• 1997

We analyze the intensity characteristics of the output beams of the ring laser, in which only one mode is generated in each direction, within the neoclassical model by using the Maxwell-Bloch equation. Considering the Nd:YAG crystal as a gain medium, we investigate the stability and the modulation of the output beam intensity as the pumping rate, the relaxation or the decay rate, and the frequency detuning vary, upon taking into account the effect of the beam in one beam in one direction onto the beam in the other direction. In particular, we examine the variation of the output beam intensity and the stability condition through a computer simulation.