Clockwork seesaw mechanisms

We propose new mechanisms for small neutrino masses based on clockwork mechanism. The Standard Model neutrinos and lepton number violating operators communicate through the zero mode of clockwork gears, one of the two couplings of the zero mode is exponentially suppressed by clockwork mechanism. Including all known examples for the clockwork realization of the neutrino masses, different types of models are realized depending on the profile and chirality of the zero mode fermion. Each type of realization would have phenomenologically distinctive features with the accompanying heavy neutrinos.Comment: 6 pages, 4 figures, minor revision (discussion and notation improved), matches version accepted in PL

Face Song Player According to Facial Expressions

Contemporary people have highly insufficient time and means of relieving their stress. Provision of a program that can solve such stress in daily life would make one’s life substantially more enjoyable. In this thesis, Face Song Player, which is a system that recognizes the facial expression of an individual and plays music that is appropriate for such person, is presented. It studies information on the facial contour lines and extracts an average, and acquires the facial shape information. MUCT DB was used as the DB for learning. For the recognition of facial expression, an algorithm was designed by using the differences in the characteristics of each of the expressions on the basis of expressionless images. Facial expression is extracted by acquiring information on the eyes, eyebrows, eyelids, mouth, lips and nasal cheeks for expressions of happiness, surprise and sorrow as well as absence of expression. There is an advantage of being able to obtain a substantial effect with very low cost through this system

Ni-dispersed fullerenes: Hydrogen storage and desorption properties

Our study shows that the H2 storage media using Ni-dispersed fullerenes could be viable alternatives to reversible hydrogen storage. It is demonstrated that a single Ni coated on the fullerene surface can store up to three H2 molecules. Consequently, at high Ni coverage, Ni-dispersed fullerenes are considered to be the novel hydrogen storage media capable of storing ~6.8 wt % H2, thus exceeding the Department of Energy target (6.5 wt %) for automobile applications. Moreover, the H2 desorption activation barrier of 11.8 kcal/mol H2 is ideal for many practical hydrogen storage applications

Sum-Rate Maximization of RSMA-based Aerial Communications with Energy Harvesting: A Reinforcement Learning Approach

In this letter, we investigate a joint power and beamforming design problem for rate-splitting multiple access (RSMA)-based aerial communications with energy harvesting, where a self-sustainable aerial base station serves multiple users by utilizing the harvested energy. Considering maximizing the sum-rate from the long-term perspective, we utilize a deep reinforcement learning (DRL) approach, namely the soft actor-critic algorithm, to restrict the maximum transmission power at each time based on the stochastic property of the channel environment, harvested energy, and battery power information. Moreover, for designing precoders and power allocation among all the private/common streams of the RSMA, we employ sequential least squares programming (SLSQP) using the Han-Powell quasi-Newton method to maximize the sum-rate for the given transmission power via DRL. Numerical results show the superiority of the proposed scheme over several baseline methods in terms of the average sum-rate performance.Comment: 13 pages, 4 figures, submitted to IEEE Wireless Communications Letter

Substitution Errors by English L1-KFL Learners: Nominative-by-Accusative

This study aims to examine the grammatical constructions associated with the frequent substitution of the nominative particle (-i/-ka) by the accusative particle (-ul/-lul) made by English L1-KFL learners and provide a strategy for the facilitation of Korean language learning and pedagogical improvement. The study explores the sentential constructions that ‘trigger’ such substitutions and attempts to give linguistic and pedagogical explanations. As a pedagogical strategy, the study proposes to use Korean-oriented English sentence constructions such as ‘As for X+Top/Nom, Y+Nom Z-Predicate’

Research on Legal Problems regarding Access and Benefit-Sharing of Marine Genetic Resources——Focused on the Patent System

随着有关生物勘探和生物技术的发展，人类发现海洋遗传资源的生物多样性和其带来的潜在价值。因此，利用海洋遗传资源所产生的获取和惠益分享引起了法学界越来越多的关注。在对海洋遗传资源的法律地位和与海洋遗传资源相关活动的界定不明确的情况下，海洋遗传资源和其衍生物的知识产权保护产生了许多问题。尤其是，根据现行有关国际立法，都无法解决在“区域”内遗传资源的利益分享问题，并且各国对此问题都有不同的看法。本文拟对“区域”内遗传资源的法律地位进行分析，并同时研究海洋遗传资源惠益分享的专利制度的作用。 除了引言和结论外，本文分为四章。 第一章首先界定了海洋遗传资源概念和其地域性的特点，并且介绍“区域”内海洋遗传...Development of “Bioprospecting” and “Biotechnology”, human found richness in Marine Genetic Resources(hereinafter MGRs) and its potential value. Access and Benefit-Sharing from using Marine Genetic Resources caused a lot of jurisprudential concerns. Under these circumstances the legal status of MGRs and activities related to MGRs are not clearly defined, the use of MGRs and the protection of the...学位：法学硕士院系专业：法学院法律系_经济法学学号：1292008115364