• Explosives and Blasting
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• v.26 no.2
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• pp.45-51
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• 2008

Fireworks display is called as younwha in korean, pokjuk in chinese, hanabi in japanese and fireworks display in English. Fireworks is a kind of art calling as engineering art program that presents its artistic sense by making up light, sound, heat, form, smoke, smoke screen, time delay and kinetic energy etc. which are made by combustion and deflagrations of explosives. Korea's fireworks skill is world class. In 1980s, we already developed the skills. After 2010 year, It would develop as Nano-biotechnology considering its environmental safety passing by 1990s' grow fully step. After pleasant fireworks, it requires a environmental pollution control measure, ability of emergency state control, management of storing place, a blind shell and waste disposal and citizenship elevation etc. This paper indicated around fireworks the present conditions, environmental pollution buzz, direction of development and plan.

• Journal of Internet Computing and Services
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• v.22 no.2
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• pp.19-27
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• 2021

Fireworks Algorithm (FWA) is a new heuristic swarm intelligent algorithm inspired by the natural phenomenon of the fireworks explosion. Though it is an effective algorithm for solving optimization problems, FWA has a slow convergence rate and less information sharing between individuals. In this paper, we improve the FWA. Firstly, explosion operator and explosion amplitude are analyzed in detail. The coefficient of explosion amplitude and explosion operator change dynamically with iteration to balance the exploitation and exploration. The convergence performance of FWA is improved. Secondly, differential evolution and commensal learning (CDE) significantly increase the information sharing between individuals, and the diversity of fireworks is enhanced. Comprehensive experiment and comparison with CDE, FWA, and VACUFWA for the 13 benchmark functions show that the improved algorithm was highly competitive.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.365-366
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• 2023

본 논문은 F1TENTH 와 같은 자율주행 경주 대회를 위한 고전적인 자율주행 알고리즘의 파라미터 최적화에 관한 연구를 다룬다. 고전적인 자율주행 알고리즘은 하이퍼파라미터의 영향을 크게 받고 더 나아가서 하이퍼파라미터의 설정에 따라서 성능의 차이가 크다. 이 하이퍼파라미터를 빠르게 찾기 위하여 Piece and Conquer Fireworks 방법을 제안한다. 결과적으로Random search에 비해서 일반 Fireworks알고리즘은 약8.3배, Piece and Conquer Fireworks알고리즘은 약 28.5배 빠른 성능을 보여준다.

• Journal of Internet Computing and Services
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• v.21 no.3
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• pp.21-28
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• 2020

Fireworks Algorithm (FWA) is a relatively novel swarm-based metaheuristic algorithm for global optimization. To solve the low-efficient local searching problem and convergence of the FWA, this paper presents a Variable Amplitude Coefficient Fireworks Algorithm with Uniform Local Search Operator (namely VACUFWA). Firstly, the explosive amplitude is used to adjust improving the convergence speed dynamically. Secondly, Uniform Local Search (ULS) enhances exploitation capability of the FWA. Finally, the ULS and Variable Amplitude Coefficient operator are used in the VACUFWA. The comprehensive experiment carried out on 13 benchmark functions. Its results indicate that the performance of VACUFWA is significantly improved compared with the FWA, Differential Evolution, and Particle Swarm Optimization.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.6
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• pp.102-109
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• 2014

A particle system is used for modeling the physical phenomenon. There are many traditional ways for simulation modeling which can be well suited for application including the landscapes of branches, clouds, waves, fog, rain, snow and fireworks in the three-dimensional space. In this paper, we present a new fireworks modeling technique for modeling 3D firework based on Firework Particle Tracking (FPT) using the particle system. Our method can track and recognize the launched and exploded particle of fireworks, and extracts relatively accurate 3D positions of the particles using 3D depth values. It can realize 3D simulation by using tracking information such as position, speed, color and life time of the firework particle. We exploit Region of Interest (ROI) for fast particle extraction and the prevention of false particle extraction caused by noise. Moreover, Kalman filter is used to enhance the robustness in launch step. We propose a new fireworks particle tracking method for the efficient tracking of particles by considering maximum moving range and moving direction of particles, and shall show that the 3D speeds of particles can be obtained by finding the rotation angles of fireworks. Also, we carry out the performance evaluation of particle tracking: tracking speed and accuracy for tracking, classification, rotation angle respectively with respect to four types of fireworks: sphere, circle, chrysanthemum and heart.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.7 no.1
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• pp.1-9
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• 2014

Fireworks are used in our country, most of U.S. equipment and software systems are old and outdated technology. If the Fireworks receives a signal, then the start of the pre-placed as the signal proceeds to the middle of a problem with the site manager directly turn off the power and turn on again. Manager, where it should be handled directly. So, in this paper, we researched a domestically developed technology to escape the reality that relies on foreign technology. Our technology should be suited the convenience, reliability and lower cost. This technology can generate revenue from overseas.

• Fashion & Textile Research Journal
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• v.16 no.2
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• pp.185-195
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• 2014

This study is to develop marine fashion items for various marine leisure activities based on the identity of Busan. Motifs from the fireworks festival and image colors of Busan are introduced for the items. A prototype design to express uniqueness and characteristics of fireworks was produced with a line combination among design modeling factors and applied to T-shirt item for comfort use in the marine leisure activity and daily life. T-shirt is one of fashion items for a message communication due to a unique modeling which can be used an excellent advertising item for the culturel identity and image of Busan. Designs were produced with the characteristics of fireworks in which circular shapes of a chrysanthemum, ring, and peony designates as motif 1, 2, 3 as well as linear shape of Niagara, fan shape, and tiger-tail as motif 4, 5, and 6. These designs were located on the front, central chest, and left chest in the T-shirts then analyzed by major students in the course of master and doctor of clothing and textiles with statistical methods. A design with new coloring preferred than the design of a symbolic construction, and circular design on the front and linear design on the left chest were preferred in the results. Prototypes were produced with peony and tiger-tail design which show a high corelation between circular and linear shape, and coloring as well as high purchasing needs. This study results will expect to use for the development of advertising items for the various events of Busan based on the textile design and fashion items with the identity of Busan.

• Environmental engineer
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• s.324
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• pp.102-105
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• 2013

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.10
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• pp.1188-1198
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• 2011

This study proposes the use of firework shapes to design fashion accessories in the judgment that they are appropriate for the expression of creative images in consideration of the display of fireworks as a kind of entertainment and a festive symbol. This study promotes the sustainable application of firework shapes to develop the designs of fashion culture items that feature a distinctive personality and uniqueness. In this present study, the proposed fashion accessory design was intended to create an entertaining new atmosphere that uses an Organic Light Emitting Diode (OLED) that draws attention as a futuristic display. In terms of methodology, a literature review of firework shapes and OLED was conducted; in addition, Adobe Illustrator CS2 and Adobe Photoshop CS2 were used to develop six different standard motive designs with formative design elements represented by a variety of firework shapes. Each of the six motifs was further expanded with different color combinations. Rich images are produced with the use of pink, blue, purple, green, yellow, orange, and red, in conjunction with various OLED effects to express the three-dimensional images of fireworks. The motifs are applied to three types of items: bags, bracelets, and necklaces. For the video images, evening and tote bags, pendants, and bangles were used. Shifting images and lights should produce unique images as well as satisfy the consumer desire for entertainment. The Adobe Image Ready software was used to present the motive of fireworks applied to the design of fashion accessories in video images but not in still-cut images due to physical constraints of this paper.

• Proceedings of the KSEE Conference
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• 2008.10a
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• pp.119-127
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• 2008

불꽃놀이는 한국명 연화(煙火), 중국명 폭죽(爆竹), 일본명 하나비(花火), 영어명 파이어웍스 디스플레이(Fireworks display) 표기되며 화약류를 연소 폭발시켜서 빛, 소리, 형태, 연기, 연막, 시간지연, 운동에너지 등을 조합하여 예술적인 감각을 연출시키는 공학으로써 공예술학으로 불랴는 일종의 예술작품이다. 우리나라의 연화기술은 세계적이다. 1980년대에 개발이 완료되었고, 1990년대에 완숙단계흘 거쳐 향후 2010년 이후에는 환경안전을 고려한 최첨단 나노 생명공학으로 발전하여야 할 것이다. 즐거운 불꽃축제 후에 환경오염방지 대책과 비상체제 운영능력, 저장소관리, 불발탄 및 폐기물처리, 시민의식 향상 등이 더욱 요망된다. 본 논문은 올해 제4회를 맞는 부산불꽃축제를 중심으로 현황 및 발전방향과 개선안을 제시하였다.