• Title/Summary/Keyword: Consonance

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NUMERICAL SOLUTIONS OF AN UNSTEADY 2-D INCOMPRESSIBLE FLOW WITH HEAT AND MASS TRANSFER AT LOW, MODERATE, AND HIGH REYNOLDS NUMBERS

  • AMBETHKAR, V.;KUSHAWAHA, D.
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.21 no.2
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    • pp.89-107
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    • 2017
  • In this paper, we have proposed a modified Marker-And-Cell (MAC) method to investigate the problem of an unsteady 2-D incompressible flow with heat and mass transfer at low, moderate, and high Reynolds numbers with no-slip and slip boundary conditions. We have used this method to solve the governing equations along with the boundary conditions and thereby to compute the flow variables, viz. u-velocity, v-velocity, P, T, and C. We have used the staggered grid approach of this method to discretize the governing equations of the problem. A modified MAC algorithm was proposed and used to compute the numerical solutions of the flow variables for Reynolds numbers Re = 10, 500, and 50000 in consonance with low, moderate, and high Reynolds numbers. We have also used appropriate Prandtl (Pr) and Schmidt (Sc) numbers in consistence with relevancy of the physical problem considered. We have executed this modified MAC algorithm with the aid of a computer program developed and run in C compiler. We have also computed numerical solutions of local Nusselt (Nu) and Sherwood (Sh) numbers along the horizontal line through the geometric center at low, moderate, and high Reynolds numbers for fixed Pr = 6.62 and Sc = 340 for two grid systems at time t = 0.0001s. Our numerical solutions for u and v velocities along the vertical and horizontal line through the geometric center of the square cavity for Re = 100 has been compared with benchmark solutions available in the literature and it has been found that they are in good agreement. The present numerical results indicate that, as we move along the horizontal line through the geometric center of the domain, we observed that, the heat and mass transfer decreases up to the geometric center. It, then, increases symmetrically.

The Philippine Merchant Marine in Consonance with STCW 2010 Manila Amendments (STCW 2010 마닐라 개정에 따른 필리핀 해운의 적용)

  • Dimailig, Orlando S.;Jeong, Jae-Yong
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.18 no.3
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    • pp.243-252
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    • 2012
  • This paper reviews the implementation of the STCW 78/95 in the Philippine MET including the effects of the revised 2010 Manila Amendments. It discusses the country's maritime environment and the structures, quality of maritime education in the country and the effects on the maritime human resource. Among the various resolutions adopted at the conference, the standards of training and certifications, and promoting skills and competency will be more emphasized in this report. These will be compared with the existing curriculum mandated by CHED and upgrade STCW trainings advised by MTC for maritime institutions. A brief comparison and analysis with other Asian countries' maritime training shall be offered. The recommendation pinpoints to the weaknesses of the present maritime regimes in certification and evaluation of maritime institutions. It concludes with the need to have mutually acceptable evaluation standards in view of developing a competent human resource for the future.

A Study on the Aesthetics and Practice of Musical proportion in L.B. Alberti's The Ten Books Architecture -focused on the study of the practice of relative dissonance according to the theory of harmony- (르네상스시대, Leon Battista Alberti의 "건축 10서"에 나타난 음계비례의 미학적 특징 및 적용방법에 관한 연구 -화성법에 따른 상대적 불협화음의 적용방법을 중심으로-)

  • Lee, Kang-Up;Jin, Kyung-Don;Bae, Yun-Chun
    • Journal of architectural history
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    • v.10 no.4 s.28
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    • pp.57-75
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    • 2001
  • The music has influenced on the aesthetics, structure and symbol of the architecture from the ancient to the present. and been to be like architecture. It is important part that through the study of musical proportion by number, which is method of architectural and musical composition, resemblance can be found, music is resemble to architecture and this recognition is general as well in renaissance as architect and musician after that time. Therefore, in this background and aesthetics, the purpose of this study is to research purpose and methodology of the proportion of musical consonance and dissonance used in L. B. Alberti's architecture. At first, for the background of aesthetics this study previewed characteristic of aesthetics arranged by subjectivism and objectivism, and this musical proportion which is applicable for Alberti's architecture was defined. secondly, Alberti's architectural aesthetics (concinnitas) of the higher concept was defined by methodology of the lower concept, and this study described the application of dissonance used by the method of canon in music. thirdly, after according to characteristic of aesthetics in chapter three, proportion system was researched by the more objective, applicable unit in renaissance: roman foot and local unit differs meter in the present, Alberti's architectures was researched by the method of cannon in music.

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A Study on the amendment of regulation of Korean Seamen's Act to exempt the seafarers who have completed advanced safety refresher training from basic safety refresher training (선원법상 상급안전 재교육 이수자의 기초안전 재교육 면제 규정의 개정에 관한 연구)

  • HAN, Se-Hyun;CHO, Jang-Won;LEE, Chang-Hee
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.4
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    • pp.925-935
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    • 2016
  • It is provided that seafarers qualified in accordance with STCW(International Convention on Standards of Training Certification and Watch-keeping for Seafarers) convention and code in safety training shall be required, every five years, to provide evidence of having maintained the required standard of competence, to undertake the tasks, duties and responsibilities listed in Chapter VI, section A-VI/1 of the STCW Code A. Every party to the STCW Convention has amended the relevant national regulations according to the above international convention and code. These amended Seaman's Act require the updating safety training which is only five years valid for existing seafarers serving onboard ship on international voyage. And above specified existing seafarers must, as of the 1st January 2017, have documentary evidence of either having completed the training course or updated their training within the last 5 years. In relation to the above international trend, the Korean Ministry of Oceans and Fisheries also has completed an amendment to its Seaman's Act. But, the Korean Seaman's Act has a supplementary provision to exempt the seafarers who have completed STCW advanced safety training from basic safety training. The purpose of this study is to define the problems of above mentioned exemption provisions and to make better policies for improvement. In order to complete the purpose, the research team has conducted an in-depth survey of various foreign cases on STCW safety training. Moreover, the team has suggested an improvement scheme in consonance with Korean shipping industry and society through out this report.

Response modification factors of concrete bridges with different bearing conditions

  • Zahrai, Seyed Mehdi;Khorraminejad, Amir;Sedaghati, Parshan
    • Earthquakes and Structures
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    • v.16 no.2
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    • pp.185-196
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    • 2019
  • One of the shortcomings of seismic bridge design codes is the lack of clarity in defining the role of different seismic isolation systems with linear or nonlinear behavior in terms of R-factor. For example, based on AASHTO guide specifications for seismic isolation design, R-factor for all substructure elements of isolated bridges should be half of those expressed in the AASHTO standard specifications for highway bridges (i.e., R=3 for single columns and R=5 for multiple column bent) but not less than 1.50. However, no distinction is made between two commonly used types of seismic isolation devices, i.e., elastomeric rubber bearing (ERB) with linear behavior, and lead rubber bearing (LRB) with nonlinear behavior. In this paper, five existing bridges located in Iran with two types of deck-pier connection including ERB and LRB isolators, and two bridge models with monolithic deck-pier connection are developed and their R-factor values are assessed based on the Uang's method. The average R-factors for the bridges with ERB isolators are calculated as 3.89 and 4.91 in the longitudinal and transverse directions, respectively, which are not in consonance with the AASHTO guide specifications for seismic isolation design (i.e., R=3/2=1.5 for the longitudinal direction and R=5/2=2.5 for the transverse direction). This is a clear indicator that the code-prescribed R-factors are conservative for typical bridges with ERB isolators. Also for the bridges with LRB isolators, the average computed R-factors equal 1.652 and 2.232 in the longitudinal and transverse directions, respectively, which are in a good agreement with the code-specified R-factor values. Moreover, in the bridges with monolithic deck-pier connection, the average R-factor in the longitudinal direction is obtained as 2.92 which is close to the specified R-factor in the bridge design codes (i.e., 3), and in the transverse direction is obtained as 2.41 which is about half of the corresponding R-factor value in the specifications (i.e., 5).

The Effect of Dissonant Chord on Cognitive Interference and Emotion (불협화음의 종류가 인지간섭과 정서에 미치는 영향)

  • Kim, JayHee;Han, KwangHee
    • Science of Emotion and Sensibility
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    • v.25 no.1
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    • pp.55-66
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    • 2022
  • Many studies have shown that musical dissonance generally evokes negative affect, but few studies detail how distinct dissonant intervals, ranging in various roughness, influence emotions and cognition. This research entailed two experiments to confirm whether varying musical intervals of dissonance trigger particular negative emotions and increase cognitive interference. Experiment 1 assumed that different dissonant intervals would elicit distinct negative emotions. In a survey involving 131 participants, there was an overwhelming consensus that dissonant intervals elicited stronger high arousal negative affect than low arousal negative affect. The major 7th degree was found to evoke a significantly stronger feeling of scared. Experiment 2 investigated whether emotions-affecting dissonance would have an enhancing effect on cognitive interference. According to a color-word Stroop task conducted on 81 participants, the presence of any dissonant sound caused significantly higher reaction times and error rates than in the absence of sound. In particular, the minor 2nd degree was cognitively the most disruptive and associated with the slowest reaction times. This paper shows how different ranges of dissonance can effectively influence negative affect and heighten cognitive interference.

A Study on the Measures of Seafarer Supply with Statistical Comparison of Maritime Graduates Career Path for the Republic of Korea and the Philippines (한국과 필리핀 해양계 졸업생 진로의 통계적 비교를 통한 선원 공급 대책에 관한 연구)

  • Barro, Ronald D.C.;Han, Won-Hui
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.18 no.3
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    • pp.253-259
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    • 2012
  • The projection on the demand for seafarers is seen to continue to rise in consonance with the world's fleet increasing tonnage. It is also expected that recurring officer shortages is paramount when global markets bounce off from the economic downturn it experienced for the last few years. In BIMCO/ISF(The Baltic and International Maritime Conference/International Shipping Federation) report for 2010, a continuous effort to produce competent seafarers should be adapted and as much as possible, reduce the wastage in the industry to address the looming scenario. The Republic of Korea, an OECD member, is a powerhouse in shipbuilding industry and has also had continued to show also an expanding trend in its fleet. On the other hand, the Philippines is still acknowledged as the main source of manpower for ocean-trading vessels. In this paper, a statistical comparison of maritime graduates' career path between the two countries is presented. In conclusion, it is suggested that a mutual co-operation between the Republic of Korea and the Philippines can be established with focusing on international maritime education and training collaboration.

Feedback Phenomenon in Technology Art (예술 공학의 피드백)

  • Kim Hyung-Gi
    • Science of Emotion and Sensibility
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    • v.8 no.4
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    • pp.423-433
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    • 2005
  • The computer hardware development has provided many chances of emergence between art and technology. In many cases today's interactive artworks cannot be completed without audience's participation. The interactive production process with technical supplementation can be celled feedback. Mr. Nam Jun Paik showed 'Participant TV' that interacts with audience's response in real time. It means artwork changes with the constantly changing value from the data set from human visual perception. Dan Graham showed another feedback related work, which delays 5second playback in mirror that implies consequence of time. Today's media art has to sublimate coincidence, time ant audience into philosophical artwork through consonance that comes with video and sound as we can see from Bill Viola. Stelarc produced artworks. That use input data that is weak signals from brain, muscles. Through a terminal display with player, body expanded meaning of media. Jeffrey Shaw's 'Legible City' provided a fabrication of the reality with the interaction of bicycle's pedal speed and steering direction that is controlled by 4river. RE:MARK used microphone as input device as Edmond Couchot's 'Je same a la vent' and Nam Jun Paik's 'Participant TV' did. There is no communication without feedback between human being. The reality makes audience involved into artworks. That is the reason why feedback has to be natural. Through the feedback process, the originality of the idea is altered by audience. The feedback is not just part of flesh of artwork rather skeleton of it. Technological showoff cannot be art itself The perfection of technological application plan helps feedback that interacts with audience naturally in order that audience hoes not feel the feedback as artificial plan. Interactive media art has to be evolved into new media form with new integration feedback technology.

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A Research on Confucian Christianity in the An-Dong region (1) - An Approach to Confucianism and Christianity via 'Intercultural Philosophy' - (안동지역의 선비-기독교인 연구(1) - 유교와 기독교의 상호문화철학적 접근 -)

  • Gwon, Sang-woo
    • Journal of Korean Philosophical Society
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    • v.145
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    • pp.119-141
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    • 2018
  • This paper is to address the consonance between Confucianism and Christianity, focusing on the first-generation clergy in Andong, North Gyeongsang Province, Korea. Andong has turned out many Confucian scholars since Yi Hwang, and thus founded the school of Togye (Yi Hwang's nom de plume). Meanwhile, some of Confucians in Andong converted to Christianity after reading the Bible. Thus, their religious activities and their interpretation of the Bible Confucian factors smacked of Confucianism, which suggests a need to reestablish the relationship between Confucianism and Christianity. This study produced the following results: First, the converts did not aspire to Christianity itself but to saving their country. The first-generation clergy in Andong wanted to sublimate their patriotic and Confucian spirits into Christianity, which is backed up by the independence movement planned jointly by Confucians and Christians in Andong. As for Confucians in Andong, their devotion to their country was a cause of the conversion to Christianity. Second, it was small wonder that Christianity was harmonious with Confucianism at least for early Christianity in Andong. In those days, Confucians in Andong had to achieve their realistic goals and thus did not need to deny Christianity. To relieve the national suffering, they had more need of Christian religiosity than Confucian morality. Likewise, missionaries wanted to propagate Christianity, and therefore did not deny the worldliness of Confucianism. On this wise, the two kept their identities and at the same time could compensate for their shortcomings from each other. This study names such Korean Christianity a 'humanistic religion.'

The Study on Evaluation of Franchise Corporate Social Responsibility (국내 프랜차이즈 기업의 CSR 단계별 평가 및 제고 방안)

  • Park, Jin Yong;Chae, Danbi;Lim, Jiwon
    • The Korean Journal of Franchise Management
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    • v.5 no.1
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    • pp.109-141
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    • 2014
  • Recently, the interests of consumers in firms that implement the social commitment activities have been consistently growing. Consumers' evaluation about the level of corporate social responsibility(CSR) can affect the overall image for product or service of corporation. This recent changes make a marketer to have to consider direct and indirect effects of CSR efforts on the market performance. This phenomena is also found in the franchise industry. The importance of CSR is more critical rather than other industries since each franchisor should care franchisees as well as end users. Franchisors' execution of CSR could increase satisfaction of end user through consonance of activities provided by franchisees. However most franchisor stay in focusing on the traditional CSR activities. Therefore, this study aims to enhance the understanding the CSR in franchise and provide the phase model of CSR development for general firms including franchise. After diagnosis the firms with the proposed model, the study found many franchisors have huge gap between current CSR activities and higher level of CSR policies that franchisor have to make facing. This study call franchisors to reduce this gap by implementing new CSR efforts. If they answer for this calling, franchise industry could leap for making the best practice of creating shared value with other stakeholders.