• Title/Summary/Keyword: Drawing Characteristics

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The Modelling and Machining of Leisure Boat Plug using CAD/CAM System (CAD/CAM 시스템을 이용한 레저보트의 플러그 모델링 및 가공)

  • Kim, Seong-Il
    • 대한공업교육학회지
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    • v.33 no.2
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    • pp.259-272
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    • 2008
  • In order to improve the productivity and quality of boat's mold in leisure boat industry, the development of modelling and machining technology of leisure boat's plug is strongly required. The traditional lines drawing approach by hand required the designer to both create fair curves and to make sure that the curves matched up to each other in the three main drawing views: profile, plan, and section. However, one will find when studying lines drawings in books that the curves might look smooth and fair, but the lines do not agree exactly in the three views. Therefore, the 2 dimensional drawing data of leisure boat are transformed using 3 dimensional design s/w and CAM s/w. In addition, the leisure boat is designed with a 3 dimensional s/w. The NC cutting data are generated by the CAM s/w. The surface characteristics of machined surface are investigated at various cutting conditions such as spindle speed, feed speed, and cutting material.

Functions and Roles of Digital Landscape Architectural Drawing (조경 설계에서 디지털 드로잉의 기능과 역할)

  • Lee, Myeong-Jun
    • Journal of the Korean Institute of Landscape Architecture
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    • v.46 no.2
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    • pp.1-13
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    • 2018
  • This work discusses the major roles of digital technologies in the history of landscape architectural drawing, and offers a critique of the dominant trend towards realism in recent digital landscape representations. During the period of transition from conventional drawing tools, computer technologies generally functioned as mechanical tools to imitate prior manual techniques. Specifically, the GIS was served as a mechanical tool to efficiently process the manual layer cake; CAD software generally functioned to translate physical models to two-dimensional construction documents while graphic software generally functioned as a tool to perform processes similar to those of manual collage and montage techniques. Recent digital landscape drawings tend to adopt a realistic depiction like the painting of landscape appearance. In the representations, discernible traces of cutting and assembling are removed via graphic software; thus, the complete representations are perceived as if they were a copy of an actual landscape. The realistic images are an easy way to communicate with the public. However, it is difficult to achieve a full embodiment of all of the multisensory characteristics of a landscape through these visuals. They often deceive viewers by visualizing idealized conditions of not-yet-actualized landscapes and production of the final images takes up a large portion of the overall design process. Alternatively, 3D digital modeling of landscape performance and creative uses of digital technologies during the overall design process, as well as hybridized techniques with different drawing techniques and technologies, provide the opportunity to explore various aspects of a landscape.

A Study on Characteristics of Stairs in Palladio's Villa (팔라디오의 빌라에서 나타난 계단의 특성 연구)

  • 이승우
    • Korean Institute of Interior Design Journal
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    • v.13 no.4
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    • pp.21-28
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    • 2004
  • This study was carried out to understand the characteristics of stairs in Palladio's villa. The subject of study are selected the twenty two villas with drawing in his book ‘The four books of Architecture’. Their cases are represented the characteristics of stair in architectural composition. Accordingly, it was analyzed and classified the architectural characteristics into space, form and plan at a villa. In conclusion, in aspect of spacial plan, staircases of Palladio's villa was presented more open and light in comparison with darked space of the medieval age. And it was intended to the connection or division between spaces of different character In an aspect of formal plan, dynamic form of stairs was divided into the two types. First, it was represented the effect of articulation in form. Second, stairs were represented the diagonal with the shape of itself. In an aspect of plan, his idea is coexisted with traditional thought and rational idea through the arrangement of symmetry md asymmetry. But at any rate, his concern was sought for the reasonable position. Also, he had represented the various characteristics in stairs such as his works in Renaissance period.

Development of ATP Train Separation Control Simulator for Radio-based Train Control System (무선통신기반 열차제어시스템 ATP 열차간격제어알고리즘 시뮬레이터 개발)

  • Yoon, Yong-Ki;Oh, She-Chan;Choi, June-Young;Park, Jae-Young;Yang, Hai-Won
    • Journal of the Korean Society for Railway
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    • v.15 no.1
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    • pp.29-36
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    • 2012
  • This paper includes ATP(Automatic Train Protection) simulator development and ATP algorithm verification to allocate wayside and train-borne and verify ATP functions of communications based train control system. The train control system has some characteristics such as simple structure and high safety when wireless communication technology is applied to the train control system. Especially, vital functions can be performed with in wayside and train-borne ATP. However, different system can be realized because I/F contents vary in accordance with vital functional allocation of ATP. Drawing characteristics in accordance with wayside and train-borne functional allocation and drawing I/F details affected by such characteristics are needed accordingly. This paper includes ATP simulator development creating train location information by direct activation of an electric motor, verifies train safety distance control algorithm of ATP by functional allocation such as train movement authority and train speed limit to ATP, and draws any supplementation needed. Appropriate simulated environment for verify ATP algorithm and main factors that affect to the ATP function were confirmed.

Characteristics of Heat Treatment on Different Materials during Laser Surface Hardening of Cast Iron for Die (금형재료용 주철의 레이저 표면경화처리시 재료에 따른 열처리 특성)

  • Kim, Jong-Do;Song, Moo-Keun;Hwang, Hyun-Tae
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.35 no.12
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    • pp.1663-1668
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    • 2011
  • Surface hardening treatment is required to improve the wear-resistance of press die because severe abrasion of die occurs during the drawing process in which the forming of the automotive body is completed and during the trimming process in which the unnecessary parts are cut. In this study, experiments on the laser surface treatment of press die are performed. Specimens are heat-treated separately at certain plate and edge position by using a diode laser to carry out suitable surface hardening treatment to reduce the wear during the drawing and the trimming processes, and the proper conditions for heat treatment are found. Spheroidal and flake graphite cast iron specimens are used, and the heat treatment characteristics of the two materials are compared. From the results of the study, it is confirmed that the heat treatment characteristics differed depending on the materials.

A Study on the Analysis and Classification of Cyber Threats Accor ding to the Characteristics of Computer Network of National·Public Organizations (국가·공공기관 전산망 특성에 따른 사이버 위협 분석 및 분류에 관한 연구)

  • Kim, Minsu;Park, Ki Tae;Kim, Jongmin
    • Convergence Security Journal
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    • v.20 no.4
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    • pp.197-208
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    • 2020
  • Based on the network infrastructure advanced in the information knowledge society, the structure of computer net work is operated by establishing the composition of network in various forms that have secured the security. In case of computer network of national/public organizations, it is necessary to establish the technical and managerial securit y environment even considering the characteristics of each organization and connected organizations. For this, the im portance of basic researches for cyber training by analyzing the technical/managerial vulnerability and cyber threats based on the classification and map of cyber threats according to the characteristics of each organization is rising. T hus, this study aims to analyze each type of external/internal cyber threats to computer network of national/public o rganizations established based on the dualistic infrastructure network of internet and national information network, a nd also to present the cyber threat framework for drawing the elements of cyber security training, by drawing and analyzing the actual elements of cyber threats through the case-based scenario.

Status of Brain-based Artistic Education Fusion Study - Basic Study for Animation Drawing Education (뇌기반 예술교육 융합연구의 현황 - 애니메이션 드로잉 교육을 위한 기초연구)

  • Lee, Sun Ju;Park, Sung Won
    • Cartoon and Animation Studies
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    • s.36
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    • pp.237-257
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    • 2014
  • This study is the process of performing the interdisciplinary fusion study between multiple fields by identifying the status on the previous artistic education considering the brain scientific mechanism of image creativity and brain-based learning principles. In recent years, producing the educational methods of each field as the fusion study activities are emerging as the trend and thanks to such, the results of brain-based educational fusion studies are being presented for each field. It includes artistic fields such as music, art and dance. In other words, the perspective is that by understanding the operating principles of the brain while creativity and learning is taking place, when applying various principles that can develop the corresponding functions as a teaching method, it can effectively increase the artistic performance ability and creativity. Since the animation drawing should be able to intuitively recognize the elements of movement and produce the communication with the target beyond the delineative perspective of simply drawing the objects to look the same, it requires the development of systematic educational method including the methods of communication, elements of higher cognitive senses as well as the cognitive perspective of form implementation. Therefore, this study proposes a literature study results on the artistic education applied with brain-based principles in order to design the educational model considering the professional characteristics of animation drawing. Therefore, the overseas and domestic trends of the cases of brain-based artistic education were extracted and analyzed. In addition, the cases of artistic education studies applied with brain-based principles and study results from cases of drawing related education were analyzed. According to the analyzed results, the brain-based learning related to the drawing has shown a common effect of promoting the creativity and changes of positive emotion related to the observation, concentration and image expression through the training of the right brain. In addition, there was a case of overseas educational application through the brain wave training where the timing ability and artistic expression have shown an enhancement effect through the HRV training, SMR, Beta 1 and neuro feedback training that strengthens the alpha/seta wave and it was proposing that slow brain wave neuro feedback training contributes significantly in overcoming the stress and enhancing the creative artistic performance ability. The meaning of this study result is significant in the fact that it was the case that have shown the successful application of neuro feedback training in the environment of artistic live education beyond the range of laboratory but the use of the machine was shown to have limitations for being applied to the teaching methods so its significance can be found in providing the analytical foundation for applying and designing the brain-based learning principles for future animation drawing teaching methods.

Factors Influencing Resistance to the Metaverse: Focusing on Propagation Mechanisms

  • Mina Lee;Minjung Kim
    • International journal of advanced smart convergence
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    • v.13 no.2
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    • pp.110-118
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    • 2024
  • This study examines factors influencing nonusers' resistance to the adoption of the metaverse, focusing on propagation mechanisms. It elucidates the role of innovation resistance within the metaverse adoption process. We applied the Innovation Resistance Model in the context of the metaverse and considers three major groups of factors influencing resistance to the metaverse: innovation characteristics (perceived usefulness, compatibility, perceived risk, and complexity), consumer characteristics (personal innovativeness), and propagation mechanisms (mass media, online media, and personal communication). An online survey of college students who do not use the metaverse revealed that perceived usefulness, compatibility, personal innovativeness, and online media were negative predictors of resistance to the metaverse. Conversely, perceived risk, mass media, and personal communication were positive predictors of resistance to the metaverse. Furthermore, innovation resistance was found to play a mediating role in the metaverse adoption process. Drawing upon the findings, we suggested marketing strategies to decrease resistance to the metaverse.

Type and Characteristics of fabrics excavated from Chonmachong of Shilla Era - focused on the fabrics which are in the Kyongju Museum′s collection - (신라시대 천마총 출토 직물의 유형과 특성 -현 경주박물관 소장직물을 중심으로-)

  • 권영숙;조현혹;장현주;김종오
    • Journal of the Korean Society of Costume
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    • v.50 no.7
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    • pp.129-139
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    • 2000
  • The Chonmachong (Tumulus No. 155 in Whangnam-dong, Kyungju, Korea), which was unearthed in 1973, is an ancient tomb built in the Shilla Era between the 5th∼6th centuries by the method of Juk-suk-mok-gwak. With the excavation of this tomb more than 11,500 articles of luxurious and splendid relics including gold and silver ornaments, weaponry and horse gears were obtained. Among the excavated articles, the saddle flap with a drawing of flying horse on it is the first relic of its kind from the Shilla Era. and 'Chonma'(a flying horse), the name of the tomb. was named after this drawing. The saddle flap is highly valuable in that it provides the idea of how goad the people of Shilla were at drawing. Although a lot of researches have been released about the relics from the Chonmachong, this study is to focus on the fabrics from the excavation, all of which are in the Kyongiu Museum's collection. The findings of this study are as follows : 1 The subject of this study is mainly on the fabrics used in horse gears, the pieces of cloth that were used to spread on a saddle or to underlay beneath a saddle. As the Shilla Dynasty tried to restrict excessive ornamentation on horses and it is assumed that the fabrics used are different. according to the social status. 2. The subject articles are four plain fabrics, three fabrics of combined -construction and one braid, the warp-faced compound woven silks of combined-construction was found for the first tinge in Korea, and is the typical quality sick with patterns woven with dyed threads in different colors. 3. It is ascertained by the Chonmachong excavation that polychrome woven silk was used not only for the clothes of the upper classes but also for the ornaments of their horses in the Era of the Three Kingdoms.

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Wet Spinning of Silk Polymer(II) -Effect of drawing on the structural characteristics of the filaments- (실크 고분자의 습식방사(II) -연신비에 따른 재생 실크 필라멘트의 구조특성 변화-)

  • 엄인철;기창석;권해용;임대우;박영환
    • Proceedings of the Korean Fiber Society Conference
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    • 2002.04a
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    • pp.111-114
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    • 2002
  • 실크는 우수한 광택, 촉감, 물성을 바탕으로 하여 인류에 있어 최고의 의류용 섬유로서 널리 이용되어 왔으며 최근에는 생체적합성 등을 활용한 의료용 및 생물공학용 소재로서 응용하고자 하는 연구가 활발하게 진행중이다[1-2]. 그러나 실크는 합성섬유와는 달리 누에가 토사하는 그 순간에 그 구조 및 형태가 결정되어 고정되는 단점을 안고 있어 다양한 특성이 요구되는 의류용 및 산업용 분야로의 응용에 한계가 있다. (중략)

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