• Title/Summary/Keyword: Soft focus

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Shape Control of Silica-Polymethylsilsesquioxane (PMSQ) Composites by Varying Ratios of Precursors (전구체 비율에 따른 실리카-폴리메틸실세스퀴옥세인(PMSQ) 복합분체의 형태 제어)

  • Choi, Yigun;Choi, Jongmin;Kim, Hyojoong
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.45 no.4
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    • pp.409-414
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    • 2019
  • Silica and polymethylsilsesquioxane (PMSQ) are silicone powders widely used as cosmetics. We synthesized silica-PMSQ composites via sol-gel method using tetraethoxysilane (TEOS) and methyltrimethoxysilane (MTMS) as precursors of silica and PMSQ, respectively. Shape of the composites was controlled by varying the ratios of TEOS and MTMS, which were used as silane monomers. Silica-PMSQ composites showed three different shapes, which were sphere-shape, raspberry- shape, and donut- shape. All of them had soft touch, easy water dispersion, and soft focus effect in common. However, each shape showed some differences in sense of use, adhesion, and strength of the soft focus effect. Raspberry-shape composite had the strongest soft focus effect, donut-shape one had the strongest adhesion, and sphere-shape one had the best in softness. Thus, it is concluded that by varying the ratios of TEOS and MTMS silica-PMSQ composites could be easily synthesized into different shapes, providing various functions. This method can be applied to manufacture functional cosmetics.

The Metaverse and Video Games: Merging Media to Improve Soft Skills Training

  • Shin, Edward;Kim, Jang Hyun
    • Journal of Internet Computing and Services
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    • v.23 no.1
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    • pp.69-76
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    • 2022
  • Education systems have made efforts to prepare students by providing technical and nontechnical courses. With video games, however, there is the potential to develop dedicated metaverses that can help teach soft skills even during casual pastimes. The research conducted will propose a set of design practices for metaverse and game development to promote soft skills. While there are many soft skills people can acquire, this paper will focus on certain aspects based on specific games and studies. There will be some information collected from the information to support the design model and arguments. This paper will provide developers with a starting point for imaginative game creation and impart users with soft skills to assist in their professions and social life.

A Review of the Fabrication of Soft Structures with Three-dimensional Printing Technology (3차원 프린팅 기술을 이용한 연성 구조물 제작)

  • Jang, Jinah;Cho, Dong-Woo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.14 no.6
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    • pp.142-148
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    • 2015
  • 3D printing technology is a promising technique for fabricating complex 3D architectures based on the CAD/CAM system, and it has been extensively investigated to manufacture structures in the fields of mechanical engineering, space technology, automobiles, and biomedical and electrical applications. Recent advances in the 3D printing of soft structures have received attention for the application of the construction of flexible sensors of soft robotics or the recreation of tissue/organ-specific microenvironments. In this review paper, we would like to focus on delivering state-of-the-art fabrication of soft structures with 3D printing technology and its various applications.

Biomechanical Analysis of Soft Golf Swing (소프트 골프 스윙의 생체역학적 해석)

  • Kim Y.Y.;Kim S.H.;Kwon T.K.;Kim N.G.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.643-644
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    • 2006
  • The purpose of this study is to experimentally analyze swing motion with soft golf clubs and compare with that with normal golf clubs. Soft golf is newly devised recreational sport based on golf but focus on the playability for the elderly. The subject fur the experiment performed swing motion using a normal golf club and a soft golf club in turn. The swing motion of the subjects was tracked using an opto-electric three-dimensional motion analysis system. The results were compared against those obtained with a normal golf club. The range of motion was analyzed along with top head speed for two cases. It was found that higher club head speed could be achieved with reduced range of motion at lumbar joint using soft golf club when compared against the swing using regular club. The lower range of motion fur lumbar bending means reduced risk of injury at the joint. So, it is projected that we can reduce the risk of injury with soft golf while maintaining the club head speed.

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Seismic Motion Amplification Characteristics at Artificial Reclaimed Land (인공 매립 지반에서의 지진파 증폭 특성)

  • Kim, Yong-Seong;Moon, Yong
    • Proceedings of the Korean Geotechical Society Conference
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    • 2005.03a
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    • pp.1134-1139
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    • 2005
  • Seismic motion amplification owing to the input motion level at bedrock is one of the important topics to understand various geomaterials behavior. The extremely valuable borehole records at Port Island were obtained during the 1995 Hyogoken Nanbu Earthquake and also before and after the main event. In this study, the seismic motion amplification at the soft reclaimed ground was discussed. Comparison of measured records with numerical simulation results were made with focus on seismic motion amplification characteristics at the soft reclaimed ground.

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Dyeing Properties of Acid and Reactive Dye for Super Soft Angora / PET, Nylon Blended Fabric (앙고라 섬유소재 / PET, Nylon 교직물의 염착 특성 : 산성염료와 반응성염료의 적용특성)

  • Kim, Young-Sung;Lee, Seok-Jang;Son, Young-A
    • Textile Coloration and Finishing
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    • v.22 no.4
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    • pp.332-340
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    • 2010
  • Nowadays natural textile materials should cope with the global warming. Soft, thin and light angora fibers which have two components. One is spiky hair and the other is soft hair. The spiky hairs have a disadvantage of pilling out. The soft hairs have promising properties comparable to cashmere goat hairs, which is cheap compared to very expensive cashmere goat hairs. In this study, we investigated the dyeing properties of angora/PET, Nylon blend fabrics to acid dyes and reactive dyes including various series of acid dyes and reactive dyes for the dyeing of the blended super soft angora fabrics and their potential for deep shade dyeing effects. Our focus is to get a relation between various kind of blend and their dyeability.

Environmental Foreign Policy as a Soft Power Instrument: Cases of China and India

  • Karakir, Irem Askar
    • Journal of Contemporary Eastern Asia
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    • v.17 no.1
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    • pp.5-26
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    • 2018
  • Joseph S. Nye defined soft power as the power of attraction to affect the behavior of other states through the use of non-coercive instruments including culture, political values and foreign policy. Over the last two decades, environmental issues have grown in importance on the international agenda and become critical components of states' foreign policy-making. This paper aims to analyze environmental foreign policy as a soft power instrument focusing on two major rising powers: China and India. Traditionally, China and India had been reluctant to make any commitments in the field. However, they have shown greater willingness to act in global environmental governance in the past decade. They started playing more active roles in global climate change negotiations and supported a number of initiatives. Their current rise in global environmental governance has even been praised by the international community as the Paris agreement case demonstrated. This study evaluates China's and India's recent efforts in global environmental governance with a focus on climate change negotiations linking their constructive position to their soft power potential. It is argued that environmental issues are used by these two states as foreign policy strategy to gain more influence in international politics. This study finds out that China's climate-related environmental diplomacy has been more ambitious than that of India and thus has been closer to fulfill its potential as a soft power asset.

Recent Advances in Soft Magnetic Actuators and Sensors using Magnetic Particles (자성 분말 기반 소프트 자성 액츄에이터 및 센서 연구 동향)

  • Song, Hyeonseo;Lee, Hajun;Kim, Junghyo;Kim, Jiyun
    • Journal of Powder Materials
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    • v.28 no.6
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    • pp.509-517
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    • 2021
  • Smart materials capable of changing their characteristics in response to stimuli such as light, heat, pH, and electric and magnetic fields are promising for application to flexible electronics, soft robotics, and biomedicine. Compared with conventional rigid materials, these materials are typically composed of soft materials that improve the biocompatibility and allow for large and dynamic deformations in response to external environmental stimuli. Among them, smart magnetic materials are attracting immense attention owing to their fast response, remote actuation, and wide penetration range under various conditions. In this review, we report the material design and fabrication of smart magnetic materials. Furthermore, we focus on recent advances in their typical applications, namely, soft magnetic actuators, sensors for self-assembly, object manipulation, shape transformation, multimodal robot actuation, and tactile sensing.

Application of Soft OR to Strategy Formation: Perspectives and Applicability (전략수립과 연성운용연구 : 동향 및 적용가능성)

  • Kim, Do-Hyeon
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.3 no.3
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    • pp.1-15
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    • 2008
  • The paper discusses application of soft OR methodologies, which have been developed for last decades centered in European OR communities, to strategy formation process. It is shown that there is strong similarity in understanding of strategy formation between descriptive school of strategy and the research trend of soft OR. The focus and philosophical background of cognitive school of strategy, in particular, share much in common with soft OR school. The analysis and overview of several soft OR methodologies are introduced. It is also proposed that SODA can be utilized more directly to the strategy formation process. However, it is also noted in this paper that the epistemological issues should be considered and resolved for fluent investigation of soft OR methodologies in relation with existing rich strategic research works, for soft OR adopts interpretative research methods while strategy research generally lies on positivistic approaches.

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Periodontal Plastic Surgery for Esthetic Restoration (심미보철을 위한 치주치료)

  • Kim, Jeong-Hye
    • The Journal of the Korean dental association
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    • v.48 no.9
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    • pp.670-679
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    • 2010
  • Esthetic demands for dental treatment are increasing every day. The interdisciplinary relationship of the restorative treatment, periodontal therapy and other treatments such as endodontics, orthodontics and so on is more emphasized nowadays to reconstruct the hard and soft tissue foundation for the esthetic restorative treatment. This article will focus on the periodontal plastic surgery for esthetic restorative treatment. These followings will be discussed. 1. Understand the relationship between teeth and gingival scaffold for esthetics 2. Discuss the classification and treatment of gummy smile 3. Recognize the gingival margin irregularities by gingival recession and how to achieve the harmonic soft tissue margins 4. describe the hard and soft tissue augmentation for ridge augmentation.