• 제목/요약/키워드: Impetus

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Effect of CCC Composition on Burning Characteristic for 120mm Kinetic Energy Ammunition (120미리 운동에너지탄용 소진탄피 조성이 연소 특성에 미치는 영향)

  • Kwon, Soon-Kil;Hwang, Jun-Sik;Choi, Sang-Kyung;Kim, Jin-Seok
    • Journal of the Korea Institute of Military Science and Technology
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    • v.8 no.4 s.23
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    • pp.146-151
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    • 2005
  • The burning rates of combustible cartridge cases(CCCs) of 120mm kinetic energy ammunition were measured by CBT(Closed Bomb Tester). The burning coefficient was 1.4 for CCC fabricated by Post Impregnation(PI) process, and 1.0 for that by Beater Additive(BA) process. The BA process CCC showed the fixed burning coefficient of 1.0 in spite of changing the composition of CCC. As the Korean Future Main Battle Tank is requiring the high penetration performance compared with that of KlAl tank ammunition(K276), CCC was designed to have higher impetus composition than that of K276 composition(525J/g). The optimum impetus was 600J/g when considering the increases of pressure and muzzle velocity with increasing impetus. When impetus of CCC by changing the composition increased from 525J/g to 600J/g, the muzzle velocity of 12m/s at pressure increase of 3500psi increased in case of using SCDB propellant.

Organisational Politics on Job Impetus Among Library Personnel in Selected Public Universities in South-West Nigeria

  • Bibire Nurat Badmus;Olatokunbo Christopher Okiki
    • International Journal of Knowledge Content Development & Technology
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    • v.13 no.2
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    • pp.51-70
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    • 2023
  • Nowadays, the growth rate of organisational politics in the library system is a cause of concern for library and information professionals. This has negatively impacted service delivery, most especially in public uni- versity libraries. This study examined the effect of organisational politics on job impetus among library personnel in selected public universities in South-west Nigeria. Three federal and three state universities were purposively selected such that one university was selected in each of the six states in South-west Nigeria. Total enumeration was used for all 187 library personnel in the six universities investigated. Using a descriptive survey of correlational type, a structured questionnaire was used to elicit information from respondents through survey monkey. Of 187 copies administered, 143, representing 76.5%, were retrieved and used for analysis. The results revealed a high level of organisational politics with low impetus. A strong inverse relationship was established between organisational politics and job impetus among library personnel in selected public universities in South-west Nigeria. Based on these, recommendations were made that Library personnel be encouraged to focus on their job specifications and limit organisational politics adhering to rules and regulations in the library and code of conduct for library staff.

A Study on Neural Network for Path Searching in Switching Network (스윗칭회로의 경로설정을 위한 신경 회로망 연구)

  • Park, Seung-Kyu;Lee, Noh-Sung;Woo, Kwang-Bang
    • Proceedings of the KIEE Conference
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    • 1990.11a
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    • pp.432-435
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    • 1990
  • Neural networks are a class of systems that have many simple processors (neurons) which are highly interconnected. The function of each neuron is simple, and the behavior is determined predominately by the set of interconnections. Thus, a neural network is a special form of parallel computer. Although major impetus for using neural networks is that they may be able to "learn" the solution to the problem that they are to solve, we argue that another, perhaps even stronger, impetus is that they provide a framework for designing massively parallel machines. The highly interconnected architecture of switching networks suggests similarities to neural networks. Here, we present switching applications in which neural networks can solve the problems efficiently. We also show that a computational advantage can be gained by using nonuniform time delays in the network.

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A study on neural network for information switching function (정보교환기능을 위한 신경 회로망 연구)

  • 이노성;박승규;우광방
    • 제어로봇시스템학회:학술대회논문집
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    • 1990.10a
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    • pp.213-217
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    • 1990
  • Neural networks are a class of systems that have many simple processors (neurons) which are highly interconnected. The function of each neuron is simple, and the behavior is determined predominately by the set of interconnections. Thus, a neural network is a special form of parallel computer. Although a major impetus for using neural networks is that they may be able to "learn" the solution to the problem that they are to solve, we argue that another, perhaps even stronger, impetus is that they provide a framework for designing massively parallel machines. The highly interconnected architecture of switching networks suggests similarities to neural networks. Here, we present two switching applications in which neural networks can solve the problems efficiently. We also show that a computational advantage can be gained by using nonuniform time delays in the network.e network.

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Characteristic Property of Combustion and Internal Ballistics of Triple-Based Propellant including RDX (RDX를 적용한 다기추진제의 연소 및 강내탄도 특성)

  • Son, Soojung;Lee, Wonmin;Lee, Woojin;Kwon, Soonkil;Jung, Jinyoung
    • Journal of the Korea Institute of Military Science and Technology
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    • v.25 no.3
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    • pp.321-328
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    • 2022
  • The current development tend of the gun propellants that they should have low sensitivity and high energy. We studied a nitrocellulose based propellant composition that replaced sensitive NG with RDX and DEGDN which high energy and low sensitivity. The important factors in the design of the gun propellant were impetus and flame temperature. NC-based propellant containing RDX showed similar impetus but low flame temperature compared to KM30A1, a triple-based propellant. The developed propellant composition didn't show any abnormal combustion reaction and the characteristics of ballistic resistance were also confirmed.

A Study on Driver's Perception over the Change of the Headlamp's Illuminance : 3. Driver's psychological property (전조등 조도변동에 대한 운전자의 인식연구 : 3. 운전자의 심리적 특성)

  • Kim, Huyn-Ji;Kim, Hyun-Jin;Kim, Gi-Hoon;Kim, Hoon;An, Ok-Hee
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.20 no.10
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    • pp.19-26
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    • 2006
  • In this study, psychological assessment was carried out to investigate the driver's psychological characteristics by the change of the headlight. The participants were 20 men and 20 women in their 20s and thirty-two different conditions in combinations of waveform of light, voltage, and alteration time were used. The questionnaire for the assessment was evaluated by 8 subjective item and 5-point SD criteria of 19 pair's adjective. The results were as follows : 1. The assessment results from SD method indicated 4 factors by factor analysis, and it was shown that A waveform had significances in a sense of security and impetus and B waveform had a significance in a sense of security. The levels of the limitations for the voltage change were 12[V] in the factor of a sense of security and 11[V] in the factor of a sense of impetus for A waveform, 12.6[V] in the factor of a sense of security for B waveform. 2. The results of the subjective assessment showed that the limitation of A waveform's brightness change was 12[V]. Moreover, the limitations of voltage changes were 12.67[V] for B waveform brightness change, 12.12[V] for discomfort, 12.71[V] for darkness. And the limitation of C waveform's brightness change was 12[V].

Multimedia : Technology Push vs. Customer Pull

  • 정종덕;윤종훈
    • Proceedings of the Korea Association of Information Systems Conference
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    • 1996.11a
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    • pp.110-123
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    • 1996
  • Misunderstanding of multimedia in the computer industry, the confusion of consumers, and the lack of understanding of technology in the human context provide an impetus for examining and speculating on the future of multimedia. "What can a multimedia technology do ?" is not a sufficient question for consumers until we add "for whom." Both how the relevant technology is likely to develop and how human choices would be made are examined with a focus on historical trend in media technology adoption.

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History of modern mathematics (현대 수학의 역사)

  • Park, Choon-Sung
    • Journal for History of Mathematics
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    • v.19 no.1
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    • pp.55-64
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    • 2006
  • The thesis is about the development of mathematics starting from the old Greece and the old Babylonia. The modem mathematics has been developed, based on the set theory in the axiomatic method since the 19th century. The primary impetus of this thesis will be to summary the development of topology.

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Structural Design and Construction of Kwangmyeang High Speed Rail Station (경부고속철도 광명역사의 구조설계)

  • Jeon Bong-Soo;Kang Joung-Ho
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.1124-1131
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    • 2004
  • Great impetus has come from the renewed emphasis on improving public transport in many countries. In Korea, built over 12 years at a cost of ${\$}12$ billion and modeled on the TGV of France, the Korea Train Express will open for regular traffic on April, 2004. The schematic design of terminal building for Kwang-Myeong station was chosen by the international competition in 1997. Mooyoung Architects and Engineers joined with AREP, French Architect awarded.

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A Study about Italy Modern Designer, Alessandro Mendini (이태리 근대디자이너 알레산드로 멘디니에 관한 연구)

  • Kang Shin-Woo
    • Journal of the Korea Furniture Society
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    • v.15 no.2
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    • pp.31-39
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    • 2004
  • The works of Alessandro Mendini doing a big role in Italian design give us fresh impetus and the message on future design. His work activity has created new space and given the second life with arranging radical and fresh visual ornaments by using various materials. His design works have been challenged on fixed and ordinary thought. He applies gorgeous and plain natural colors. When he develops idea into the form, his works hold meditation and clear subjectivity. Alessandro Mendini makes us aware that his work of arts connects human spirit with thing.

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