• 제목/요약/키워드: Nature-Inspired Surface

검색결과 25건 처리시간 0.025초

이끼필터를 이용한 안개 포집/제거 시스템 (Fog Collection/Removal System Using a Moss Filter)

  • 오선종;박민용;김완두;임현의
    • 대한기계학회논문집B
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    • 제40권7호
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    • pp.449-455
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    • 2016
  • 안개는 교통시스템에서 경제적 손실을 초래하고 대기오염물질과 결합하여 건강에 문제를 일으킨다. 안개 제거 시스템은 개발노력에도 불구하고 대부분 발생한 안개를 모니터링 후 제거하도록 구성되어 있으며, 지속적으로 시스템을 유지하기 위한 에너지 공급과 유지 보수가 필요하다. 본 연구에서는 이러한 안개제거 시스템의 한계를 극복하기 위하여 이끼필터(이끼를 결합한 폴리올레핀 그물망)를 응용하는 안개 제거 방법을 제시하였다. 서로 다른 표면구조를 가지는 3가지 이끼의 수분 흡수율을 측정하고 이끼구조와의 상관관계를 살펴보았다. 가장 작은 기공의 직경과 가장 큰 총 기공의 내부 표면적을 가지는 공작이끼가 높은 수분 흡수율을 가짐을 확인 후, 공작이끼로 안개 제거 필터를 만들어 안개제거 포집/제거에 사용되는 기존의 폴리올레핀 그물망과 성능을 비교하여 보았다. 본 논문에서 제시된 이끼필터를 이용한 안개 제거 시스템은 에너지 없이 지속적으로 안개를 제거할 수 있는 경제적이면서도 친환경적인 방법이다.

Targeted Nanomedicine that Interacts with Host Biology

  • 주진명
    • 한국표면공학회:학술대회논문집
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    • 한국표면공학회 2017년도 춘계학술대회 논문집
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    • pp.81-81
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    • 2017
  • Nanotechnology is of great importance to molecular biology and medicine because life processes are maintained by the action of a series of molecular nanomachines in the cell machinery. Recent advances in nanoscale materials that possess emergent physical properties and molecular organization hold great promise to impact human health in the diagnostic and therapeutic arenas. In order to be effective, nanomaterials need to navigate the host biology and traffic to relevant biological structures, such as diseased or pathogenic cells. Moreover, nanoparticles intended for human administration must be designed to interact with, and ideally leverage, a living host environment. Inspired by nature, we use peptides to transfer biological trafficking properties to synthetic nanoparticles to achieve targeted delivery of payloads. In this talk, development of nanoscale materials will be presented with a particular focus on applications to three outstanding health problems: bacterial infection, cancer detection, and traumatic brain injury. A biodegradable nanoparticle carrying a peptide toxin trafficked to the bacterial surface has antimicrobial activity in a pneumonia model. Trafficking of a tumor-homing nanoprobes sensitively detects cancer via a high-contrast time-gated imaging system. A neuron-targeted nanoparticle carrying siRNA traffics to neuronal populations and silences genes in a model of traumatic brain injury. Unique combinations of material properties that can be achieved with nanomaterials provide new opportunities in translational nanomedicine. This framework for constructing nanomaterials that leverage bio-inspired molecules to traffic diagnostic and therapeutic payloads can contribute on better understanding of living systems to solve problems in human health.

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Roll-to-Roll (R2R) Fabrication of Micro Pillar Array for Biomimetic Functionalization of Surface

  • Jeon, Deok-Jin;Lee, Jun-Young;Yeo, Jong-Souk
    • Applied Science and Convergence Technology
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    • 제23권1호
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    • pp.54-59
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    • 2014
  • The roll-to-roll (R2R) fabrication method to make micro-scale pillar arrays for biomimetic functionalization of surfaces is presented. Inspired by the micro-structure of plants in nature, a surface with a synthetic micro-scale pillar array is fabricated via maskless photolithography. After the surface is SAM (self-assembled monolayer) coated with trichlorosilane in a vacuum desiccator, it displays a hydrophobic property even in R2R replicas of original substrate, whose properties are further characterized using various pitches and diameters. In order to perform a comparison between the original micro-pattern and its replicas, surface morphology was analyzed using scanning electron microscopy and wetting characteristics were measured via a contact angle measurement tool with a $10{\mu}L$ water droplet. Efficient roll-to-roll imprinting for a biomimetic functionalized surface has the potential for use in many fields ranging from water repelling and self-cleaning to microfluidic chips.

알루미늄의 발수 표면처리 기술 개발 (Development of Surface Treatment for Hydrophobic Property on Aluminum Surface)

  • 변은연;이승훈;김종국;김양도;김도근
    • 한국표면공학회지
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    • 제45권4호
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    • pp.151-154
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    • 2012
  • A hydrophobic surface has been fabricated on aluminum by two-step surface treatment processes consisting of structure modification and surface coating. Nature inspired micro nano scale structures were artificially created on the aluminum surface by a blasting and Ar ion beam etching. And a hydrophobic thin film was coated by a trimethylsilane ($(CH_3)_3SiH$) plasma deposition to minimize the surface energy of the micro nano structure surface. The contact angle of micro nano structured aluminum surface with the trimethylsilane coating was $123^{\circ}$ (surface energy: 9.05 $mJ/m^2$), but the contact angle of only trimethylsilane coated sample without the micro nano surface structure was $92^{\circ}$ (surface energy: 99.15 $mJ/m^2$). In the hydrophobic treatment of aluminum surface, a trimethylsilane coated sample having the micro nano structure was more effective than only trimethylsilane coated sample without the micro nano structure.

얀 아르튀스 베르트랑의 작품을 응용한 니트 디자인 - 자연주의 개념을 바탕으로 - (Knit Design Inspired by Yann Arthus-Bertrand's Works - Based on the Concept of Naturalism -)

  • 이승아;홍은희;윤지원;이연희
    • 복식문화연구
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    • 제18권2호
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    • pp.277-289
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    • 2010
  • The objective of this study is to develop naturalistic knit designs inspired by Yann Arthus-Bertrand's works. For this purpose, we examined the present style of naturalism and history of naturalism though literature research, and then developed designs. The results are as follows: First, as scientific realism originated from a philosophical concept was adopted in literature and other genres, its meanings have been altered and comprehensively expanded according to the genres of which the term is being used. Naturalism of the modern times carries strong message of ecology and environmental protection. Second, the modern naturalism in fashion is manifested in expressing the image of nature and plasticity, instead of a mere use of the natural materials. As the aspects of ecology become more significant, elements of retro, recycle, or grunge are additionally integrated in fashion. Third, Naturalism expressed in knitwear is similar with that of other clothing in terms of color and textile, however, silhouette in knitwear is unique in its general naturalness and flowing effects. Embroidery, knitting of Jacquard and Intarsia, or crochet is used to express forms of objects from nature. Visual effects regardless of the contents of yarn, and pattern effects after knitting by using yarn, have influences on the material. Forth, the eight knit designs in expressing naturalism presented in this study took a motif from the works of Yann Arthus-Bertrand. They were created by rendering rhythm of the landscape with emphasis on brown color. Contour and surface touch were expressed through yarn and the structure of knit.

의상디자인 발상 및 전개 방법에 대한 연구 (A Study on the Methodology for Fashion Design through the Source of Inspiration and its Application)

  • 금기숙
    • 복식
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    • 제29권
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    • pp.53-70
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    • 1996
  • The inspiration and its application in fashion design is considered as one of the important factors in boosting the fashion arena. Many inspirations are adapted in fashion de-sign and they make the fashion design unique and characteristic. In this study many fashion designs are analyzed to find what kind of inspirations were adapted and utilized for the fashion design in reality. The nature historic costumes ethcin costumes arts sciences literature music sports were revealed as the sources of fashion inspiration.l The concerns on the environments movies and dramas could provide inspirations in fashion as well. Several contents or steps were studied to provide the one of the example of appli-cations as follows: 1. The works of Marc Chagall were analized to figure out and several plastic characteristics from his works were revealed such as fantastic strong colors unreal animal pattern or their details his wife and friends various divisions of the surface and so on. These attributes had been favored in depiction of his works to ex-press his home town or nostalgia. 2. '90s fashion designs inspired by the works of Chagall were analized to find out the meth-odology or the process of designs. The same Chagall colors were used in design and similar pattern were expressed through beaded work or printing jobs. The surface designs such as printing were the most prefered method in adapting the inspirations. 3. The plastic characteristics of the work of Chagall were attempted in clothing design and construction. The color combination patterns which remind the animals the surface divisions were used in design ot practive the methodologies.

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전통가구 반닫이의 형태적 특성을 활용한 가방디자인 개발 (Development of a Bag Design by Incorporating and Adapting the Formative Characteristics of the Traditional Bandaji Chest)

  • 허성아
    • 한국의류산업학회지
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    • 제25권2호
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    • pp.153-164
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    • 2023
  • As interest in the environment and sustainability increases, a tendency to pursue eco-design is emerging. Sustainable design coincides with the Korean aesthetic sense of applying the principle of the circulation of nature. This study examined Korean traditional furniture, Bandaji, from the perspective of historical and cultural sustainability and extracted and adopted a sustainability-related motif. The purpose of this study was to develop a creative bag design that reflects Korean tradition and strengthens artistry. First, a bag was produced based on the morphological characteristics of Gyeonggi-do Bandaji. Second, though the original overall design was maintained, the decorative patterns were modified by, for example, increasing the number of ear decorations on the surface of the bag and reducing the number of traps. Third, a new geometric pattern was created for the surface of the bag; this entailed moving the position of the handle-shaped ear ornament and the leather. Fourth, new decorative patterns were drawn on the surface. This study is meaningful in that it presents a sustainable bag production methodology that reflects Korean aesthetics. It also showcases a designer's unique, creative, and artistic bag design. It is expected that design work inspired by Korean formative beauty will be an opportunity to simultaneously utilize and support various Korean cultural assets and artworks.

Nanoscale Protein Chip based on Electrical Detection

  • Choi, Jeong-Woo
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2005년도 생물공학의 동향(XVI)
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    • pp.18-18
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    • 2005
  • Photoinduced electron transport process in nature such as photoelectric conversion and long-range electron transfer in photosynthetic organisms are known to occur not only very efficiently but also unidirectionally through the functional groups of biomolecules. The basic principles in the development of new functional devices can be inspired from the biological systems such as molecular recognition, electron transfer chain, or photosynthetic reaction center. By mimicking the organization of the biological system, molecular electronic devices can be realized $artificially^{1)}$. The nano-fabrication technology of biomolecules was applied to the development of nano-protein chip for simultaneously analyzing many kinds of proteins as a rapid tool for proteome research. The results showed that the self-assembled protein layer had an influence on the sensitivity of the fabricated bio-surface to the target molecules, which would give us a way to fabricate the nano-protein chip with high sensitivity. The results implicate that the biosurface fabrication using self-assembled protein molecules could be successfully applied to the construction of nanoscale bio-photodiode and nano-protein chip based on electrical detection.

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자연모사를 통한 미세 고분자 포토닉 구조의 구면배열에 관한 연구 (Spherical arrangement of biomimetic polymer photonic structures)

  • 정기훈
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회A
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    • pp.403-404
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    • 2007
  • Compound eyes in nature present intriguing topics in physiological optics due to their unique optical scheme for imaging. For example, a bee's eye has thousands of integrated photonic units called ommatidia spherically arranged along a curvilinear surface so that each unit points in a different direction. The omni-directionally arranged ommatidium collects incident light with a narrow range of angular acceptance and independently contributes to the capability of wide field-of-view (FOV) detection. Artificial implementation of compound eyes has attracted a great deal of research interest because the wide FOV exhibits a huge potential for medical, industrial, and military applications. So far, imaging with a FOV over $90^{\circ}$ has been achieved only with fisheye lenses which rely on bulky and expensive multiple lenses and require stringent alignment. In this talk, we will discuss about the spherical 3D arrangement of the photonic structures of biologically inspired artificial compound eyes in a small form-factor to have and the functional and anatomical similiarity with natural compound eyes.

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‘98-00’ Fashion Trend에 나타난 Hybrid 현상에 관한 고찰 (The concept of hybride phenomean is to selected to describe the fashiontrend of ‘98-00’.)

  • 정미혜
    • 한국의상디자인학회지
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    • 제1권1호
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    • pp.5-16
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    • 1999
  • The purpose of this study is to identify the distinctive characterics HYBRID, strictly defined, an offspring that is a cross between different species, genera, or, in rare cases, families, More loosely defined, a hybrid can also be a cross between parents of different subspecies or varieties of a species. Hybrid varieties of plants and animals are of economic value because the hybrid is nearly always more vigorous, larger, and more fertile than either of its parents. Plant and animal hybrids may arise spontaneously in nature or may be produced intentionally by man. Forward-looking fashion explores progress. Adjusting to a world that has integrated genetics and its mutations, the new silhouette seems without references, as if born from a spontaneous generation. A slightly bizarre composite, asymmetrical, discreetly technological aesthetic, it draws on the latest technological details. the pursuit of performance and ergonomics, yet also of comfort and amusement that takes into account the body and its articulations, generates strange garments. Inspired by medical protheses. Focos on fabric touches, their weightiness and surface effects obtained with silicone, rubber or wax. in a range that highlights yellows but can also contrast with colder, slightly surgical hues, the hybrid woman doesn't necessarily want to stand out.

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