김미정 교수

Here we demonstrate fully-integrated, bezel-less transistor arrays using stretchable origami substrates and foldable conducting interconnects. Reversible folding of these arrays is enabled by origami substrates which are composed of rigid support fixtures and foldable elastic joints. In addition, hybrid structures of thin metal films and metallic nanowires worked as foldable interconnects which are located on the elastomeric joints.

Permanent magnet (PM) synchronous motors (PMSMs) have been used to drive a number of vehicles. They have high torque density, high efficiency, and a wide speed range. However, the high cost of PMs is disadvantageous. This paper presents a technique for increasing the torque density by modifying the shape of the PMs and minimizing the magnet volume. The PM characteristics such as flux density, demagnetizing force, PM energy product, and the air-gap flux density are represented by a lumped magneti

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Asymmetric electromagnetic force caused by the frictional worn bearing, rotor misalignment, and unbalanced rotor, etc., leads to an asymmetrical operation, vibration, and electromagnetic noise. The need for the detection of these rotor eccentricities has lead to the development of monitoring methods by increasing sensitivity and noise immunity. This paper proposes a diagnosis method for an induction

Lipid-protein complexes are the basis of pulmonary surfactants covering the respiratory surface and mediating gas exchange in lungs. Cardiolipin is a mitochondrial lipid overexpressed in mammalian lungs infected by bacterial pneumonia. In addition, increased oxygen supply (hyperoxia) is a pathological factor also critical in bacterial pneumonia. In this paper we fabricate a micrometer-size graphene-based sensor to measure oxygen permeation through pulmonary membranes. Combining oxygen sensing, X

Mobile advertising has become a new form of marketingcommunications in recent years as mobile phones became ubiquitous in many countries. While the consumer aspect of mobile advertising has attracted much attention, few studies have touched on the business aspect of this new advertising medium. The present paper explores the status and trends of mobile advertising through in-depth personalinterviews with the advertising practitioners in one of the leading mobileeconomies in the world, South Kore

Abstract Bulk nanobubbles, measuring less than 200 nm in water, have shown their salient properties in promoting growth in various species of plants and orthodox seeds, and as potential drug-delivery carriers in medicine. Studies of recalcitrant seeds have reported markedly increased germination rates with gibberellin treatment; however, neither the mechanism promoting germination nor the implication for food safety is well elucidated. In our study, recalcitrant wasabi ( Eutrema japonicum ) seed

본 연구는 광고주의 그린신뢰도, 제품의 친환경 속성 중요도 지각, 그리고 친환경 광고주장 유형이 광고효과에 미치는 영향을 알아보기 위하여 실험 광고물 16개를 제작하여 20대부터 40대까지 남녀 666명을 대상으로 광고태도, 제품태도, 구매의도를 측정하였다. 연구 결과, 첫째 기업의 친환경 신뢰도가 높고, 기업이 제공하는 제품의 친환경 속성이 중요하다고 지각될수록, 실체적 친환경 주장 광고일수록 더 효과적인 것으로 나타났다. 특히 실체적 친환경 주장 광고는 연상적 친환경 주장 광고보다 제품 관련 소비자 반응을 높이는데 효과적이었다. 둘째, 그린신뢰도별 친환경주장유형의 효과는 그린신뢰도가 높은 기업은 실체적 친환경 주장 광고가 연상적 친환경 주장 광고보다 더 효과적으로 나타났으며, 그린신뢰도가 낮은 기업은 실체와 연상적 친환경 주장 광고의 차이가 나타나지 않았다. 셋째, 제품의 친환경 속성 중요도별 친환경 주장 유형의 효과는 친환경 속성이 중요한 제품과 친환경 속성이 덜 중요한 제품

Objectives: This study was conducted to investigate the prevalence of playing-related musculoskeletal disorders (PRMDs) of some music college freshmen majoring in string instruments. Methods: The study subjects were 199 freshmen majoring in strings at three colleges in Seoul and surrounds. The symptom prevalence and related factors of PRMDs were surveyed with a self-administered questionnaire. The Southampton Protocol was used to diagnose PRMDs. Results: The freshmen had played for 9 years and

Increasing numbers of studies in STEM fields indicate that there are higher gains in student outcomes in classroom environments implementing evidence-based teaching approaches focused on learners and their learning when compared to traditional lecture-based classrooms. However, despite the compelling results, studies show that lecture is still the most common instructor behaviour in undergraduate education. Professional learning programs have been shown to be crucial in closing this gap and prom

In this paper, we investigate the effect of temperature on the unipolar switching characteristics of a resistance random-access memory (RRAM) that uses poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films. The set voltage required for a transition from an off-state to an on-state was found to decrease as the temperature of the RRAM increases. This phenomenon is explained by the formation of filaments caused by the Joule heating effect. We propose a new method of controlling

본 연구는 미래창조과학부 공무원들의 공직동기, 네트워킹 행동, 유리천장이 조직성과에 미치는 영향과 더불어 직무만족의 매개효과를 살펴보는데 주된 목적을 두고 구조방정식모형 분석을 실시하고자 하였다. 분석결과 공직동기는 조직성과에 직접적으로 정(+)적인 영향을 미치는 동시에 직무만족을통하여 간접적으로도 조직성과에 정(+)적인 영향을 미치는 것으로 나타났다. 네트워킹 행동은조직성과에 직접적으로 영향을 미치지는 않았으나, 직무만족을 통하여 간접적으로 조직성과에정(+)적인 영향을 미치는 것으로 나타났다. 유리천장은 조직성과에 직접적으로 부(-)적인 영향을 미치는 것으로 나타난 반면에, 직무만족을 통하여 간접적으로 조직성과에 영향을 미치지는않는 것으로 나타났다. 직무만족은 조직성과에 직접적으로 정(+)적인 유의미한 영향을 미치는변수로 검증되었다. 아울러 이들 변수들이 조직성과에 직·간접적으로 미친 상대적 영향력은공직동기( =.488)가 가장 크게 나타났고, 그 다음 직무만족( =.354),