• Title/Summary/Keyword: Speculative

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The relationship between perfectionism and exercise burnout of amateur boxers

  • OH, Chae Yun;HUR, Seung Eun;SONG, Youn Sang;MOON, Hwang Woon
    • Journal of Sport and Applied Science
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    • v.5 no.3
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    • pp.7-12
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    • 2021
  • Purpose: The purpose of this study is to examine the relationship between the perfectionism tendency of amateur boxers and exercise exhaustion, to understand the perfectionism tendency of boxers in the sports of speculative sports, and to provide startigic insights for reducing exercise exhaustion. Research design, data, and methodology: In this study, adult boxers registered with the Korean Boxing Association of the Korea Sports Council in 2019 were selected as the research population. 280 boxers participated in the survey and responded the survey items, which were constructed by research variables, perfectionism and burnout. Data were analysed using SPSS version 18.0 for statistics. In details, frequency, correlations, exploratory factor analysis, multiple regressions were conducted to test the proposed relationship. Results: As a result of analysing the relationship between amateur boxers' perfectionism and athletic exhaustion, it was con-firmed that when the self-oriented perfectionism among amateur boxers' perfectionist tendencies was high, it had a significant effect on exercise burnout. Conclusions: In order to reduce the pressure of amateur boxers to win and the pressure to pass through the weight class, which is characteristic of weight control events, if the athlete manages himself well, the athlete's exercise exhaustion will decrease. If professional mental training is combined, it is judged that amateur boxing will be able to develop once again.

Attitudes Toward Mini-Packaging Products: The Case of China

  • Pornpitakpan, Chanthika;Li, Qiuling;Sy-Changco, Joseph A.;Chen, Junsong
    • Asia Pacific Journal of Business Review
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    • v.4 no.1
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    • pp.45-60
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    • 2019
  • Proposing that the main barriers to mini-packaging success in China, in contrast to India and the Philippines, is Chinese consumers' sociocultural values and attitudes toward products in mini packages, this study investigates the factors that potentially make the China market relatively not conducive to buying products in mini packages via a survey of 468 Chinese adults in Shanghai (first-tier city) and Zhuhai (second-tier city). Results show that respondents agree that products in mini packages are difficult to store once opened, are more expensive than are larger-sized products, do not provide good value for money, entail frequent shopping, are harmful to the environment, are not advertised, and are mainly for trying new products and for traveling. They disagree with many possible reasons for the unpopularity of products in mini packages. This study's contributions are (1) providing in-depth quantitative analysis of the possible reasons mini-packaging is not popular in China, (2) offering managerial advice for using mini-packaging to increase brand competitiveness, (3) developing a scale to measure attitudes toward products in mini packages; and (4) being empirical as opposed to merely anecdotal/speculative like some studies in this area.

VHDL Design for Out-of-Order Superscalar Processor of A Fully Pipelined Scheme (완전한 파이프라인 방식의 비순차실행 수퍼스칼라 프로세서의 VHDL 설계)

  • Lee, Jongbok
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.21 no.1
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    • pp.99-105
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    • 2021
  • Today, a superscalar processor is the basic unit or an essential component of a multi-core processor, SoCs, and GPUs. Hence, a high-performance out-of-order superscalar processor must be adopted for these systems to maximize its performance. The superscalar processor fetches, issues, executes, and writes back multiple instructions per cycle by utilizing reorder buffers and reservation stations to dynamically schedule instructions in a pipelined scheme. In this paper, a fully pipelined out-of-order superscalar processor with speculative execution is designed with VHDL and verified with GHDL. As a result of the simulation, the program composed of ARM instructions is successfully performed.

A Study on the Central Bank's Foreign Exchange Market Intervention Strategies with OTC Currency Option Market (중앙은행의 OTC 통화옵션시장을 활용한 외환시장 개입 전략에 관한 연구)

  • Jae-Kwan Park
    • Korea Trade Review
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    • v.47 no.2
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    • pp.103-120
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    • 2022
  • This paper studies the possibility of options as an instrument for central bank to intervene foreign exchange market. As opposed to spot transaction or forward transaction, which impacts spot exchange rate only once, currency options can continuously resist a directional speculative pressure on spot market due to the dynamic delta hedging of OTC currency options market maker. This research also analyzes whether and how central banks can use currency options to lower exchange rate volatility and maintain (implicit) target zones in foreign exchange markets. It argues that short position rather than long position in options will result in market makers dynamically hedging their long option exposure in a stabilizing manner, consistent with the first objective. Selling a "Strangle" allows a central bank to increase the credibility of its commitment to a target zone, and could have a lower expected cost than spot market interventions. However, this strategy also exposes the central bank to an unlimited loss potential. Therefore these kinds of intervention strategies must be used in the short run and temporarily.

Natural Selection in Artificial Intelligence: Exploring Consequences and the Imperative for Safety Regulations

  • Seokki Cha
    • Asian Journal of Innovation and Policy
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    • v.12 no.2
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    • pp.261-267
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    • 2023
  • In the paper of 'Natural Selection Favors AIs over Humans,' Dan Hendrycks applies principles of Darwinian evolution to forecast potential trajectories of AI development. He proposes that competitive pressures within corporate and military realms could lead to AI replacing human roles and exhibiting self-interested behaviors. However, such claims carry the risk of oversimplifying the complex issues of competition and natural selection without clear criteria for judging whether AI is selfish or altruistic, necessitating a more in-depth analysis and critique. Other studies, such as ''The Threat of AI and Our Response: The AI Charter of Ethics in South Korea,' offer diverse opinions on the natural selection of artificial intelligence, examining major threats that may arise from AI, including AI's value judgment and malicious use, and emphasizing the need for immediate discussions on social solutions. Such contemplation is not merely a technical issue but also significant from an ethical standpoint, requiring thoughtful consideration of how the development of AI harmonizes with human welfare and values. It is also essential to emphasize the importance of cooperation between artificial intelligence and humans. Hendrycks's work, while speculative, is supported by historical observations of inevitable evolution given the right conditions, and it prompts deep contemplation of these issues, setting the stage for future research focused on AI safety, regulation, and ethical considerations.

Acid-Catalyzed Hydrolysis of Hexacyanoferrate (III) to Prussian Blue via Sequential Mechanism

  • Youngjin Jeon
    • Journal of the Korean Chemical Society
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    • v.68 no.3
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    • pp.139-145
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    • 2024
  • This study aims to elucidate the mechanism involved in the hydrolysis of the hexacyanoferrate(III) complex ion (Fe(CN)63-) and the mechanism leading to the formation of Prussian blue (FeIII4[FeII(CN)6]3·xH2O, PB) in acidic aqueous solutions at moderately elevated temperatures. Hydrolysis constitutes a crucial step in generating PB through the widely used single-source or precursor method. Recent PB syntheses predominantly rely on the single-source method, where hexacyanoferrate(II/III) is the exclusive reactant, as opposed to the co-precipitation method employing bare metal ions and hexacyanometalate ions. Despite the widespread adoption of the single-source method, mechanistic exploration remains largely unexplored and speculative. Utilizing UV-vis spectrophotometry, negative-ion mode liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS), and a devised reaction, this study identifies crucial intermediates, including aqueous Fe2+/3+ ions and hydrocyanic acid (HCN) in the solution. These two intermediates eventually combine to form thermodynamically stable PB. The findings presented in this research significantly contribute to understanding the fundamental mechanism underlying the acid-catalyzed hydrolysis of the hexacyanoferrate(III) complex ion and the subsequent formation of PB, as proposed in the sequential mechanism introduced herein. This finding might contribute to the cost-effective synthesis of PB by incorporating diverse metal ions and potassium cyanide.

A Study on the Causes of False Alarm by NFPA921 in Semiconductor Factory (반도체공장의 NFPA921에 의한 비화재보 원인조사 방안)

  • Sang-Hyuk Hong;Ha-Sung Kong
    • Journal of the Korea Safety Management & Science
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    • v.25 no.4
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    • pp.87-94
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    • 2023
  • This study analyzed and identified various causes of caustic alarms of 163 fire detectors that occurred from January 2019 to December 2021 at domestic semiconductor manufacturing plants equipped with about 30,000 fire detectors, and proposed a new non-fire prevention cause investigation plan by applying the NFPA 921 scientific methodology. The results of the study are as follows. First, in terms of necessary recognition and problem definition, an analog detector and an integrated monitoring system were proposed to quickly determine the location and installation space information of the fire detector. Second, in order to prevent speculative causes and errors in various analyses in terms of data analysis and hypothesis establishment, non-fire reports were classified into five by factor and defined, and the causes of occurrence by factor were classified and proposed. Finally, in terms of hypothesis verification and final hypothesis selection, a non-fire prevention improvement termination process and a final hypothesis verification sheet were proposed to prevent the cause from causing re-error.

Confidence Value based Large Scale OWL Horst Ontology Reasoning (신뢰 값 기반의 대용량 OWL Horst 온톨로지 추론)

  • Lee, Wan-Gon;Park, Hyun-Kyu;Jagvaral, Batselem;Park, Young-Tack
    • Journal of KIISE
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    • v.43 no.5
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    • pp.553-561
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    • 2016
  • Several machine learning techniques are able to automatically populate ontology data from web sources. Also the interest for large scale ontology reasoning is increasing. However, there is a problem leading to the speculative result to imply uncertainties. Hence, there is a need to consider the reliability problems of various data obtained from the web. Currently, large scale ontology reasoning methods based on the trust value is required because the inference-based reliability of quantitative ontology is insufficient. In this study, we proposed a large scale OWL Horst reasoning method based on a confidence value using spark, a distributed in-memory framework. It describes a method for integrating the confidence value of duplicated data. In addition, it explains a distributed parallel heuristic algorithm to solve the problem of degrading the performance of the inference. In order to evaluate the performance of reasoning methods based on the confidence value, the experiment was conducted using LUBM3000. The experiment results showed that our approach could perform reasoning twice faster than existing reasoning systems like WebPIE.

A Study on the Development of Geometry as the Natural Laws and the Concepts of Space - Focus on the Whitehead's theories of natural laws - (자연법칙으로서 기하학과 공간 개념의 전개에 관한 연구 - 화이트헤드의 자연법칙 학설을 중심으로 -)

  • Hwang, Tae-Joo
    • Korean Institute of Interior Design Journal
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    • v.19 no.2
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    • pp.90-98
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    • 2010
  • The concepts of laws like regularity or persistence or recurrence those are discovered in nature, became the essential elements in speculative philosophy, study and scientific technology. Western civilization was spread out by these natural laws. As this background, this study is aimed to research the theories of natural laws and the development of geometry as the descriptive tools and the development aspects of the concepts of space. According to Whitehead's four theories on the natural laws, the result of this study that aimed like that as follows. First, the theories on the immanence and imposition of the natural laws were the predominant ideas from ancient Greek to before the scientific revolution, the theory on the simple description like the positivism made the Newton-Cartesian mechanism and an absolutist world view. The theory on the conventional interpretation made the organicism and relativism world view according to non-Euclidean geometry. Second, the geometrical composition of ancient Greek architecture was an aesthetics that represented the immanence of natural laws. Third, in the basic symbol of medieval times, the numeral symbol was the frame of thought and was an important principal of architecture. Fourth, during the Renaissance, architecture was regarded as mathematics that made the order of universe to visible things and the geometry was regarded as an important architectural principal. Fifth, according to the non-Euclidean geometry, it was possible to present the natural phenomena and the universe. Sixth, topology made to lapse the division of traditional floor, wall and ceiling in contemporary architecture and made to build the continuous space. Seventy, the new nature was explained by fractal concepts not by Euclidean shapes, fractal presented that the essence of nature had not mechanical and linear characteristic but organic and non-linear characteristic.

An Analysis of Network Structure in Housing Markets: the Case of Apartment Sales Markets in the Capital Region (주택시장의 네트워크 구조 분석: 수도권 아파트 매매시장의 사례)

  • Jeong, Jun Ho
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.2
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    • pp.280-295
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    • 2014
  • This paper analyzes the topological structure of housing market networks with an application of minimal spanning tree method into apartment sales markets in the Capital Region over the period 2003.7-2014.3. The characteristics of topological network structure gained from this application to some extent share with those found in equity markets, although there are some differences in their intensities and degrees, involving a hierarchical structure in networks, an existence of communities or modules in networks, a contagious diffusion of log-return rate across nodes over time, an existence of correlation breakdown due to the time-dependent structure of networks and so on. These findings could be partially attributed to the facts that apartments as a quasi-financial asset have been strongly overwhelmed by speculative motives over the period investigated and they can be regarded as a housing commodity with the highest level of liquidity in Korea.

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