Yonsei University · Computer Science
Professor Sungho Kang's research lab focuses on intelligent connected vehicle systems, with an emphasis on integrating Internet of Things (IoT) technologies, cloud computing, and voice-based virtual assistants to enhance automotive user experiences. The lab explores advanced simulation techniques for efficient design verification in complex automotive systems, leveraging error modeling to evaluate the effectiveness of validation patterns. Research also spans human-machine interaction, particularly through voice-activated personal assistants that bridge home and vehicle environments. The lab's work aims to develop smarter, safer, and more intuitive vehicular software and services.
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Abstract Metamaterial perfect absorbers (MPAs) are artificial materials composed of an array of subwavelength structures that manipulate electromagnetic waves to achieve extraordinary light absorption properties. Driven by the advent of the Internet of Things, MPAs are employed in microelectromechanical systems for the development of efficient and miniaturized IR detectors, imagers, and spectrometers, thanks to their lithographically tunable peak absorption, spectral selectivity, and ultrathin t
Given a set of interconnected elements, linear ordering generates a linear sequence of elements of the set, which is the basis for most constructive initial-placement methods. This paper presents a new strategy for linear ordering. The important difference of the new technique from the previous ones is that it starts the ordering process from the most lightly connected seed. It was applied to various placement problems including standard cell and gate array and produced very good results.
마케팅 활동에 대한 투자가 증가하면서 마케팅 활동과 기업 성과에 대한 실체적 관계를 정립하고자 하는 관심이 증대되어 왔다. 특히나 마케팅 사고의 대표적인 개념으로서 시장지향성과 기업 성과는 많은 학자들에 의해서 연구되어 왔다. 많은 연구들에서 시장지향성이 고객들에게 제공할 우월한 가치를 창출하고 유지하는데 최우선 순위를 두고 시장 정보를 창출하고 조직내에 확산시켜 반응하게 하는 기업 문화이기 때문에 이러한 시장지향성은 지속가능한 경쟁우위를 창출해내고 장기적으로 기업의 성과를 향상시킬 것이라고 하였다. 하지만 일부 연구에서는 유의하지 못한 결과나 반대의 결과가 도출되었던 것도 사실이다. 이러한 불일치하는 연구의 결과를 설명하고자 하는 노력으로 시장지향성과 기업의 성과간의 여러 가지 매개변수를 이용한 연구들이 진행되어 왔다. 대표적인 것이 바로 기업의 혁신성과 전략유형의 매개적 역할을 밝히는 것이었다. 하지만 실제로 시장지향성이 기업의 성과로 이어지기 위해서는 실제 기업의 운용 프로세스
Given a set of interconnected elements, linear ordering generates a linear sequence of elements of the set, which is the basis for most constructive initial-placement methods. This paper presents a new strategy for linear ordering. The important difference of the new technique from the previous ones is that it starts the ordering process from the most lightly connected seed. It was applied to various placement problems including standard cell and gate array and produced very good results.
The way in which we interact with our cars is changing, driven by the increased use of mobile devices, cloud-based services, and advanced automotive technology. In particular, the requirements and market demand for the Internet of Things (IoT) device-connected vehicles will continuously increase. In addition, the advances in cloud computing and IoT have provided a promising opportunity for developing vehicular software and services in the automotive domain. In this paper, we introduce the concep
This paper reports on the experimental demonstration of wide-angle and polarization insensitive ultranarrow band mid-infrared (MIR) plasmonic absorbers for multispectral sensing and imaging applications. By optimizing geometry and fabrication process of an ultrathin (400 nm) metal-insulator-metal (MIM) metamaterial structure, we have been able to experimentally demonstrate high absorptivity (η>91%) mid-IR absorbers with the narrowest absorption bandwidth reported to date (full width at half maxi
When using simulation for design verification, only a subset of possible simulation patterns is used, since exhaustive simulation is usually not practical. When this subset is used, the designer wants to know how efficiently the design has been verified. The authors provide a measure of simulation pattern effectiveness, based on the concepts of design error modeling. This measure gives insight into the actual level of design validation that has been achieved. These concepts provide a basis for d
The simulation automation system (SAS) was developed to provide an efficient simulation environment, by automating the entire simulation process. This system can be classified, by its salient unique features, into: automatic model generator (AMG), automatic simulator developer (ASD), and design error simulation and test system (DEST). The system can automatically generate multivalued simulation models and automatically develop various simulators, using domain specific automatic programming techn
Various convolutional approaches to computing the 1D and 2D discrete cosine transform (DCT) are presented. In the 1D case the method of W. Li (see IEEE Trans. Signal Process., vol.39, no.6, p.1305-13, 1991) is introduced, and a more regular structure than that of the Li method is described. Since both methods are complicated to implement with systolic arrays, a proper array structure is proposed. This structure speeds up the multiplication by processing with real numbers instead of complex numbe
To use simulation for design verification, designers need a confidence measure for a given set of simulation patterns, specifically for cases in which only a subset of the possible patterns is used. The authors derive a measure of design verification coverage based on the number of design errors detected in a theoretical analysis of a circuit. To verify the theoretical analysis, they simulate errors and compare the results.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http:/
This paper reports on an ultra-miniaturized multispectral infrared (IR) chemical sensor based on an array of plasmonically-enhanced MEMS resonant IR detectors and a single multiplexed CMOS IC readout. The unique combination of such a piezoelectric-plasmonic MEMS sensing technology with a low-power CMOS read-out circuitry results in a frequency-domain IR spectrometer microsystem characterized by an ultra-miniaturized footprint (total chip area of ≈ 1.53mm <sup xmlns:mml="http://www.w3.org/1998/Ma
As the traditional IC design migrates to three-dimensional integrated circuits (3D-ICs) design, new challenges need to be considered carefully to solve its reliability and yield issues. 3D-ICs using through-silicon-vias (TSVs) can have latent defects such as resistive open and bridge defects, which are caused by the thermal stress during the fabrication process. These latent defects lead to the deterioration of the electrical performance of TSVs caused by an undesired increase in the resistance-
기업 간 제휴 활동과 관련된 많은 연구 성과에도 불구하고 경쟁 기업보다 우월한 제휴 관계를 형성하기 위한 구체적 역량과 이러한 역량이 기업의 반응과 제휴 성과에 미치는 영향에 대한 연구는 상대적으로 부족한 상황이다. 본 연구는 경쟁기업보다 우월한 제휴 성과를 달성할 수 있는 기업의 역량을 제휴 지향성(alliance orientation)으로 정의하고 제휴 관련 기업을 대상으로 자료를 수집하여 제휴 창의성과 제휴 관계 성과와의 관계를 살펴보았다. 본 연구는 다음과 같은 시사점을 제공해 준다. 첫째, 제휴 지향성을 통해 형성할 수 있는 제휴 창의성은 참신적 제휴 창의성에 한정된다는 것이다. 둘째, 제휴 지향성과 제휴 성과와의 관계에 있어 제휴 창의성의 매개적 역할은 제휴 성과 촉진을 위한 제휴 창의성의 역할 강조를 의미한다고 할 수 있다. 셋째, 제휴 지향성과 기업 성과와의 관계에 있어 제휴 관계 성과의 매개적 역할을 확인하였다는 것이다. 넷째, 제휴지향성이 기업 성과에 미치는 영향의
본 연구는 친환경 제품의 소비가치가 만족도에 미치는 영향 및 성별에 따른 조절효과를 분석하는데 그 목적이 있다. 친환경 수산물 제품을 대상으로 한 분석결과, 소비가치의 주효과와 소비가치와 성별의 상호작용효과가 나타나는 것을 발견할 수 있었다. 즉 친환경 제품의 정서적 소비가치와 사회적, 기능적 소비가치가 만족도에 영향을 미치는 것으로 나타났다. 반면 성별에 따라 사회적 소비가치와 기능적 소비가치가 만족도에 미치는 영향은 차이가 있는 것으로 나타났다. 이러한 연구결과는 친환경 마케팅 분야에서 다음과 같은 이론적 시사점을 제공해 줄 것으로 기대된다.
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