Search results for: Namil Kim

Items from 1 to 20 out of 34 results

article

Smart Inks: Imidazolium‐Functionalized Diacetylene Amphiphiles: Strike a Lighter and Wear Polaroid Glasses to Decipher the Secret Code (Adv. Mater. 39/2020)

Yu‐Jin Choi, Seohee Park, Won‐Jin Yoon, Seok‐In Lim, more

Advanced Materials > 32 > 39 > n/a - n/a

The development of smart inks that change color and transparency in response to external stimuli is important in safety and anticounterfeiting. In article number 2003980, Kwang‐Un Jeong and co‐workers demonstrate that a secret code, written with thermoresponsive and polarization‐dependent secret inks consisting of imidazolium‐functionalized diacetylenes, can be deciphered by wearing polaroid glasses...

article

Imidazolium‐Functionalized Diacetylene Amphiphiles: Strike a Lighter and Wear Polaroid Glasses to Decipher the Secret Code

Yu‐Jin Choi, Seohee Park, Won‐Jin Yoon, Seok‐In Lim, more

Advanced Materials > 32 > 39 > n/a - n/a

The development of smart inks that change color and transparency in response to external stimuli is very important for various fields, from modern art to safety and anticounterfeiting technology. A uniaxially oriented diacetylene thin film on a macroscopic area is obtained by coating, self‐assembling and topochemical photopolymerizing of imidazolium‐functionalized diacetylenes (M‐DA and T‐DA) and...

article

Optical Films: Latticework Nanostructure by Chemical Function Transfer and Molecular Shape Amplification of Programmed Reactive Mesogens (Adv. Funct. Mater. 44/2019)

Yu‐Jin Choi, Yumin Lee, Geukcheon Bang, Jinyoung Jeong, more

Advanced Functional Materials > 29 > 44 > n/a - n/a

In article number 1905214, Ji‐Hoon Lee, Kwang‐Un Jeong, and co‐workers construct a latticework nanostructure for single‐layered coatable negative dispersion retarders by controlling the chemical function transfer and molecular shape amplification of programmed reactive mesogens. The single‐layered coatable negative retarder with an ideal value is successfully applied for the fabrication of flexible...

article

Latticework Nanostructure by Chemical Function Transfer and Molecular Shape Amplification of Programmed Reactive Mesogens

Yu‐Jin Choi, Yumin Lee, Geukcheon Bang, Jinyoung Jeong, more

Advanced Functional Materials > 29 > 44 > n/a - n/a

By controlling the hierarchical superstructures by chemical function transfer and shape amplification of molecular building blocks, advanced materials with the desired properties can be developed. To realize this concept, a latticework nanostructure is constructed for a single‐layered negative dispersion (ND) retarder by the newly synthesized hydrogen‐donating HBP host reactive mesogen (RM) and the...

article

A cross-national study of knowledge, government intervention, and innovative nascent entrepreneurship

Hyungseok (David) Yoon, Namil Kim, Bernard Buisson, Fred Phillips

Journal of Business Research > 2018 > 84 > C > 243-252

Which kind of government intervention is needed to transform scientific and technological knowledge into innovative nascent entrepreneurship? We answer this question by drawing upon the knowledge spillover theory of entrepreneurship and institutional theory. We empirically examined the moderating effect of government intervention on the relation between knowledge and innovative nascent entrepreneurship...

article

The effect of patent protection on firms’ market value: The case of the renewable energy sector

Daehyun Kim, Namil Kim, Wonjoon Kim

Renewable and Sustainable Energy Reviews > 2018 > 82 > P3 > 4309-4319

In the renewable energy industry, technology development requires a large initial investment by firms and takes a long time. Thus, protecting patents in this industry has become an increasingly important issue in maintaining a company's value. In this study, we examine how patent protection affects firms’ market value by analyzing the listed companies in South Korea in the renewable energy sector...

article

Stathmin/Op18 depletion induces genomic instability and leads to premature senescence in human normal fibroblasts

Deepmala Shrestha, Namil Kim, Kiwon Song

Journal of Cellular Biochemistry > 119 > 2 > 2381 - 2395

Stathmin/oncoprotein18 regulates microtubule dynamics and participates in mitotic entry and exit. We isolated stathmin as a physically interacting partner of KIFC1, a minus‐end‐directed kinesin functioning in bipolar spindle formation and maintenance. We found that stathmin depletion leads to multipolar spindle formation in IMR‐90 normal human fibroblasts. Stathmin‐depleted IMR‐90 cells showed early...

chapter

VPGNet: Vanishing Point Guided Network for Lane and Road Marking Detection and Recognition

Seokju Lee, Junsik Kim, Jae Shin Yoon, Seunghak Shin, more

2017 IEEE International Conference on Computer Vision (ICCV) > 1965 - 1973

2017 IEEE International Conference on Computer Vision (ICCV)

In this paper, we propose a unified end-to-end trainable multi-task network that jointly handles lane and road marking detection and recognition that is guided by a vanishing point under adverse weather conditions. We tackle rainy and low illumination conditions, which have not been extensively studied until now due to clear challenges. For example, images taken under rainy days are subject to low...

article

Recent progress of functional coating materials and technologies for polycarbonate

Namil Kim

Journal of Coatings Technology and Research > 2017 > 14 > 1 > 21-34

Polycarbonate (PC) has been recognized as a promising alternative for inorganic glass thanks to high optical transparency, light weight, and excellent toughness. To expand the PC applications, especially in outdoor environments, and to impart new functionalities, surface coating can be an effective approach to overcome the intrinsic drawbacks of PC, such as low hardness and poor weathering performance...

chapter

Thermal Image Enhancement using Convolutional Neural Network

Yukyung Choi, Namil Kim, Soonmin Hwang, In So Kweon

2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) > 223 - 230

2016 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

With the advent of commodity autonomous mobiles, it is becoming increasingly prevalent to recognize under extreme conditions such as night, erratic illumination conditions. This need has caused the approaches using multi-modal sensors, which could be complementary to each other. The choice for the thermal camera provides a rich source of temperature information, less affected by changing illumination...

chapter

Fast multiple objects detection and tracking fusing color camera and 3D LIDAR for intelligent vehicles

Soonmin Hwang, Namil Kim, Yukyung Choi, Seokju Lee, more

2016 13th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) > 234 - 239

2016 13th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

For many robotics and intelligent vehicle applications, detection and tracking multiple objects (DATMO) is one of the most important components. However, most of the DATMO applications have difficulty in applying real-world applications due to high computational complexity. In this paper, we propose an efficient DATMO framework that fully employs the complementary information from the color camera...

chapter

Thermal-infrared based drivable region detection

Jae Shin Yoon, Kibaek Park, Soonmin Hwang, Namil Kim, more

2016 IEEE Intelligent Vehicles Symposium (IV) > 978 - 985

2016 IEEE Intelligent Vehicles Symposium (IV)

Drivable region detection is challenging since various types of road, occlusion or poor illumination condition have to be considered in a outdoor environment, particularly at night. In the past decade, Many efforts have been made to solve these problems, however, most of the already existing methods are designed for visible light cameras, which are inherently inefficient under low light conditions...

article

Dynamic patterns of industry convergence: Evidence from a large amount of unstructured data

Namil Kim, Hyeokseong Lee, Wonjoon Kim, Hyunjong Lee, more

Research Policy > 2015 > 44 > 9 > 1734-1748

Because of the accelerated life cycle in technology and correspondingly rapid technological saturation in markets, firms are not only accelerating the rate of technological innovation but also expanding the scope of their products or services by combining product or service features of other markets, which eventually leads to industry convergence. However, despite the significant impact of industry...

chapter

Low-Cost Synchronization for Multispectral Cameras

Soonmin Hwang, Yukyung Choi, Namil Kim, Kibaek Park, more

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) > 435 - 436

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

In this paper, we introduce a low-cost multicamera synchronization approach. Our system is low-cost to make, easy to handle and convenient to use. Proposed system can be employed in single- and multi- spectral various cameras, and also used in any devices which support the external trigger. As a result, our system shows a good performance comparing with hand-eye synchronization, and we also shows...

chapter

Geometrical calibration of multispectral calibration

Namil Kim, Yukyung Choi, Soonmin Hwang, Kibaek Park, more

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) > 384 - 385

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

In this paper, we introduce a novel calibration pattern board for visible and thermal camera calibration. Our pattern board is easy to make, handy to move and efficient to heat. Also, it preserves a uniform thermal radiance for a long time. Proposed method can be employed in single- and multi- spectral camera system, and also used in the splitter or stereo camera system. As a result, our method shows...

chapter

Relative attributes with deep Convolutional Neural Network

Dong-Jin Kim, Donggeun Yoo, Sunghoon Im, Namil Kim, more

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI) > 157 - 158

2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI)

Our work is based on the idea of relative attributes, aiming to provide more descriptive information to the images. We propose the model that integrates relative-attribute framework with deep Convolutional Neural Networks (CNN) to increase the accuracy of attribute comparison. In addition, we analyzed the role of each network layer in the process. Our model uses features extracted from CNN and is...

chapter

Artrieval: Painting retrieval without expert knowledge

Namil Kim, Yukyung Choi, Soonmin Hwang, In So Kweon

2015 IEEE International Conference on Image Processing (ICIP) > 1339 - 1343

2015 IEEE International Conference on Image Processing (ICIP)

As people are becoming interested in paintings, various user-interactive search systems have been presented in recent times. Many systems encourage users to search paintings by prior knowledge on paintings. We discover the limitation for existing methods on how well the query is represented by the user, and propose a simple, yet effective way to search the painting by exploiting the color to express...

chapter

Line meets as-projective-as-possible image stitching with moving DLT

Kyungdon Joo, Namil Kim, Tae-Hyun Oh, In So Kweon

2015 IEEE International Conference on Image Processing (ICIP) > 1175 - 1179

2015 IEEE International Conference on Image Processing (ICIP)

We propose a spatially varying stitching method with line correspondences. We are motivated by the observation that point features could be spatially biased or not matched in practice, e.g., repeated textures or homogeneous regions of man-made structures. In this scenario, line matches can provide strong correspondences as well as supplement cues, such as the structure preserving property. With these...

chapter

Multispectral pedestrian detection: Benchmark dataset and baseline

Soonmin Hwang, Jaesik Park, Namil Kim, Yukyung Choi, more

2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) > 1037 - 1045

2015 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

With the increasing interest in pedestrian detection, pedestrian datasets have also been the subject of research in the past decades. However, most existing datasets focus on a color channel, while a thermal channel is helpful for detection even in a dark environment. With this in mind, we propose a multispectral pedestrian dataset which provides well aligned color-thermal image pairs, captured by...

article

Crystal nucleation and motion in an undercooled binary solution

Thomas Sutter, Namil Kim, Thein Kyu, Dmitry Golovaty

Current Opinion in Chemical Engineering > 2015 > 7 > C > 1-5

The article describes a previously unknown phenomenon in which crystals forming in an undercooled binary solution undergo a rapid motion upon nucleation. The motion appears to be of Marangoni-type and is driven by sharp concentration gradients that develop in the vicinity of the crystal/solution interface. Our model predicts that the crystal experiences rapid acceleration immediately upon its nucleation...

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Keywords

DIACETYLENE (2)
FEATURE EXTRACTION (2)
HYDROGEN BONDING (2)
LATTICEWORK NANOSTRUCTURE (2)
MOLECULAR SHAPE AMPLIFICATION (2)
POLARIZATION DEPENDENCE (2)
REACTIVE MESOGEN (2)
SECRET INKS (2)
SINGLE‐LAYERED NEGATIVE RETARDER (2)
THERMORESPONSIVE MATERIALS (2)
TOPOCHEMICAL POLYMERIZATION (2)
ANTIREFLECTION (1)
ARTIFICIAL INTELLIGENCE (1)
BENCHMARK TESTING (1)
BIODEGRADABLE POLYMER BLENDS (1)
CAMERA CALIBRATION (1)
CAMERAS (1)
CO-OCCURRENCE-BASED ANALYSIS (1)
CODE DIVISION MULTIPLE ACCESS (1)
COLOR CLUSTERING (1)
CONVOLUTIONAL NEURAL NETWORK (CNN) (1)
CONVOLUTIONAL NEURAL NETWORKS (1)
DATMO (1)
DEEP LEARNING (1)
ELECTRICAL CONDUCTIVITY (1)
FADING (1)
FREQUENCY DISTRIBUTION OPTIMAL DIVERSITY SYSTEM (1)
FREQUENCY DIVERSITY (1)
FREQUENCY-SELECTIVE FADING (1)
GAIN (1)
GENOMIC INSTABILITY (1)
GOVERNMENT INTERVENTION (1)
HARDNESS (1)
HIERARCHICAL METRIC LEARNING (1)
HONEYCOMB‐STRUCTURED POLYMER SHEETS (1)
HUMAN NORMAL FIBROBLAST IMR‐90 (1)
IMAGE ALIGNMENT (1)
IMAGE ENHANCEMENT (1)
IMAGE RECONSTRUCTION (1)
IMAGE RESOLUTION (1)
IMAGE SEGMENTATION (1)
INDUSTRY CONVERGENCE (1)
INDUSTRY CONVERGENCE INDEX (1)
INDUSTRY CONVERGENCE MAP (1)
INNOVATIVE NASCENT ENTREPRENEURSHIP (1)
INTER CODE INTERFERENCE (1)
INTERFERENCE (SIGNAL) (1)
KIFC1 (1)
LAGGING CHROMOSOME (1)
LARGE DEFORMATIONS (1)
LIGHTING (1)
LINE CORRESPONDENCE (1)
LOW CORRELATED CARRIER (1)
MARKET VALUE OF FIRMS (1)
MECHANICAL PROPERTIES (1)
MICRONUCLEI (1)
MISCIBILITY (1)
MOVING DIRECT LINEAR TRANSFORMATION (1)
MULTI-MODAL (1)
MULTIACCESS COMMUNICATION (1)
MULTICAMERA SYSTEM (1)
MULTICARRIER CODE DIVISION MULTIPLE ACCESS (1)
MULTIPLEXING (1)
NAFION/PVDF-TRFE BLENDS (1)
OBJECT RECOGNITION (1)
OFDM (1)
OP18/STATHMIN (1)
PAINTING RETRIEVAL (1)
PARTIAL BLOCK MC-CDMA (1)
PATENT PROTECTION (1)
PATTERN BOARD (1)
PHASE DIAGRAM (1)
PHASE DIAGRAMS (1)
PHOTOPOLYMERIZATION-INDUCED PHASE SEPARATION (1)
PHOTOREACTION KINETICS (1)
POISSON'S RATIOS (1)
POLY(D,L‐LACTIC ACID) (1)
POLY(Ε‐CAPROLACTONE) (1)
POLYCARBONATE (1)
PROTON CONDUCTIVITY (1)
QUERY-BY-MEMORY (1)
RAIN (1)
REAL-TIME MORPHOLOGY DEVELOPMENT (1)
RECEIVER (1)
RECEIVERS (1)
RELATIVE ATTRIBUTES (1)
RENEWABLE ENERGY (1)
ROADS (1)
ROBOT VISION SYSTEMS (1)
ROBOTS (1)
SCIENTIFIC KNOWLEDGE (1)
SELF-CLEANING (1)
SENSOR FUSION (1)
SOL–GEL (1)
SPATIALLY VARYING STITCHING (1)
STRUCTURES (1)
SYNCHRONIZATION (1)
TARGET TRACKING (1)
TECHNOLOGICAL KNOWLEDGE (1)
TELECOMMUNICATION (1)
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Wiley (7)
ACS (6)
Springer (2)

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The Journal of Physical Chemistry B (4)
Advanced Functional Materials (2)
Advanced Materials (2)
Journal of Vascular Surgery (2)
Macromolecular Chemistry and Physics (2)
Polymer (2)
Chemistry of Materials (1)
Current Opinion in Chemical Engineering (1)
Journal of Business Research (1)
Journal of Cellular Biochemistry (1)
Journal of Coatings Technology and Research (1)
Journal of Materials Science (1)
Macromolecules (1)
Renewable and Sustainable Energy Reviews (1)
Research Policy (1)
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INFONA - science communication portal

Search results for: Namil Kim

Smart Inks: Imidazolium‐Functionalized Diacetylene Amphiphiles: Strike a Lighter and Wear Polaroid Glasses to Decipher the Secret Code (Adv. Mater. 39/2020)

Imidazolium‐Functionalized Diacetylene Amphiphiles: Strike a Lighter and Wear Polaroid Glasses to Decipher the Secret Code

Optical Films: Latticework Nanostructure by Chemical Function Transfer and Molecular Shape Amplification of Programmed Reactive Mesogens (Adv. Funct. Mater. 44/2019)

Latticework Nanostructure by Chemical Function Transfer and Molecular Shape Amplification of Programmed Reactive Mesogens

A cross-national study of knowledge, government intervention, and innovative nascent entrepreneurship

The effect of patent protection on firms’ market value: The case of the renewable energy sector

Stathmin/Op18 depletion induces genomic instability and leads to premature senescence in human normal fibroblasts

VPGNet: Vanishing Point Guided Network for Lane and Road Marking Detection and Recognition

Recent progress of functional coating materials and technologies for polycarbonate

Thermal Image Enhancement using Convolutional Neural Network

Fast multiple objects detection and tracking fusing color camera and 3D LIDAR for intelligent vehicles

Thermal-infrared based drivable region detection

Dynamic patterns of industry convergence: Evidence from a large amount of unstructured data

Low-Cost Synchronization for Multispectral Cameras

Geometrical calibration of multispectral calibration

Relative attributes with deep Convolutional Neural Network

Artrieval: Painting retrieval without expert knowledge

Line meets as-projective-as-possible image stitching with moving DLT

Multispectral pedestrian detection: Benchmark dataset and baseline

Crystal nucleation and motion in an undercooled binary solution

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