지상관측 기상자료를 적용한 KLDAS(Korea Land Data Assimilation System)의 토양수분 · 증발산량 산출

박광하 ( Gwangha Park ),계창우 ( Changwoo Kye ),이경태 ( Kyungtae Lee ),유완식 ( Wansik Yu ),황의호 ( Eui-ho Hwang ),강도혁 ( Dohyuk Kang ) 대한원격탐사학회 2021 大韓遠隔探査學會誌 Vol.37 No.6

본 연구에서는 K-LIS(Korea-Land surface Information System)의 KLDAS(Korea Land Data Assimilation System)를 사용하여 LSM의 초기 경계조건 최적화를 위해 스핀업(Spin-up)을 진행하였고다. 스핀업은 2018년을 대상으로 8회 반복 수행하였다. 또한, 국내 기상청(KMA, Korea Meteorological Administration), 농촌진흥청(RDA, Rural Development Administration), 한국농어촌공사(KRC, Korea Rural Community Corporation), 한국수력원자력(KHNP, Korea Hydro & Nuclear Power Co., Ltd.), 한국수자원공사(K-water, Korea Water Resources Corporation), 환경부(ME, Ministry of Environment) 등에서 관측하고 있는 기상자료를 사용하여 저해상도(K-Low, Korea Low spatial resolution; 0.125°) 및 고해상도(K-High, Korea High spatial resolution; 0.01°)의 기상자료를 생성하여KLDAS에 적용하였다. 그리고, K-Low 및 K-High의 정확도 향상 정도를 확인하기 위해 선행 연구에서 사용된 MERRA-2 (Modern-Era Retrospective analysis for Research and Applications, version 2)와 ASOS-S(ASOS-Spatial)가 적용된 토양수분 및 증발산량을 같이 평가하였다. 그 결과, 초기 경계조건의 최적화는 토양수분의 경우 2회(58개 지점), 3회(6개 지점), 6회(3개 지점)의 스핀업이 필요하고, 증발산량의 경우 1회(2개 지점), 2회(2개 지점)의 스핀업이 필요하다. MERRA-2, ASOS-S, K-Low, K-High을 적용한 토양수분의 경우 R²의 평균은 각각 0.615, 0.601, 0.594, 0.664이고, 증발산량의 경우 R²의 평균은 각각 0.531, 0.495, 0.656, 0.677로 K-High의 정확도가 가장 높은 것으로 평가되었다. 본 연구 결과를 통해 다수의 지상 관측자료를 확보하고 고해상도의 격자형 기상자료를 생성하면 KLDAS의 정확도를 높일 수 있다. 다만, 지점 자료를 격자로 변환할 때 각 지점의 기상현상이 충분히 고려되지 않으면 정확도는 오히려 낮아진다. 향후 IDW의 매개변수 설정 또는 다른 보간기법을 사용하여 격자형 기상자료를 생성하여 적용하면 보다 높은 품질의 자료를 산출할 수 있을 것으로 판단된다. This study demonstrates soil moisture and evapotranspiration performance using Korea Land Data Assimilation System (KLDAS) under Korea Land Information System (KLIS). Spin-up was repeated 8 times in 2018. In addition, low-resolution and high-resolution meteorological data were generated using meteorological data observed by Korea Meteorological Administration (KMA), Rural Development Administration (RDA), Korea Rural Community Corporation (KRC), Korea Hydro & Nuclear Power Co.,Ltd. (KHNP), Korea Water Resources Corporation (K-water), and Ministry of Environment (ME), and applied to KLDAS. And, to confirm the degree of accuracy improvement of Korea Low spatial resolution (hereafter, K-Low; 0.125°) and Korea High spatial resolution (hereafter, K-High; 0.01°), soil moisture and evapotranspiration to which Modern-Era Retrospective analysis for Research and Applications, version 2 (MERRA-2) and ASOS-Spatial (ASOS-S) used in the previous study were applied were evaluated together. As a result, optimization of the initial boundary condition requires 2 time (58 point), 3 time (6 point), and 6 time (3 point) spin-up for soil moisture. In the case of evapotranspiration, 1 time (58 point) and 2 time (58 point) spin-ups are required. In the case of soil moisture to which MERRA-2, ASOS-S, K-Low, and K-High were applied, the mean of R² were 0.615, 0.601, 0.594, and 0.664, respectively, and in the case of evapotranspiration, the mean of R² were 0.531, 0.495, 0.656, and 0.677, respectively, indicating the accuracy of K-High was rated as the highest. The accuracy of KLDAS can be improved by securing a large number of ground observation data through the results of this study and generating high-resolution grid-type meteorological data. However, if the meteorological condition at each point is not sufficiently taken into account when converting the point data into a grid, the accuracy is rather lowered. For a further study, it is expected that higher quality data can be produced by generating and applying grid-type meteorological data using the parameter setting of IDW or other interpolation techniques.

상위 K 하이 유틸리티 패턴 마이닝 기법 성능분석

양흥모 ( Heungmo Ryang ),윤은일 ( Unil Yun ),김철홍 ( Chulhong Kim ) 한국인터넷정보학회 2015 인터넷정보학회논문지 Vol.16 No.6

전통적인 빈발 패턴 마이닝은 데이터베이스로부터 사용자 정의 최소 임계치 이상의 빈도수를 가지는 유효 패턴들을 식별한다. 적절한 임계치 설정은 해당 도메인에 대한 사전 지식을 요구하므로 쉬운 작업이 아니다. 따라서 임계치 설정을 통한 마이닝 결과의 정밀한 제어 불가능으로 인해 도메인 지식을 기반으로 하지 않는 패턴 마이닝 방법이 필요하게 되었다. 상위 K 빈발 패턴 마이닝은 이러한 문제를 해결하기 위해 제안되었으며, 임계치 설정 없이 상위 K개의 중요 패턴들을 마이닝 한다. 사용자는 이를 적용함으로써 데이터베이스에 상관없이 가장 높은 빈도수의 패턴부터 K번째로 높은 빈도수의 패턴까지 찾아낼 수 있다. 비록 상위 K 빈발 패턴 마이닝이 임계치 설정 없이 상위 K개의 중요 패턴들을 마이닝 하지만, 트랜잭션 내 아이템 수량과 데이터베이스 내 서로 다른 아이템 중요도를 고려하지 못하여 많은 실세계 응용의 요구에 부합하지 못한다. 하이 유틸리티 패턴 마이닝은 아이템 중요도가 포함된 비 바이너리 데이터베이스의 특성을 고려하기 위해 제안되었으나 최소 임계치를 필요로 한다. 최근 임계치 설정 없는 하이 유틸리티 패턴 마이닝을 위한 상위 K 하이 유틸리티 패턴 마이닝이 개발되었으며, 이를 통해 사용자는 사전 지식 없이 원하는 수의 패턴을 마이닝 할 수 있다. 본 논문은 상위 K 하이 유틸리티 패턴 마이닝을 위한 알고리즘을 분석한다. 최신 알고리즘에 대한 성능분석을 통해 개선사항 및 발전 방향에 대해 고찰한다. Traditional frequent pattern mining discovers valid patterns with no smaller frequency than a user-defined minimum threshold from databases. In this framework, an enormous number of patterns may be extracted by a too low threshold, which makes result analysis difficult, and a too high one may generate no valid pattern. Setting an appropriate threshold is not an easy task since it requires the prior knowledge for its domain. Therefore, a pattern mining approach that is not based on the domain knowledge became needed due to inability of the framework to predict and control mining results precisely according to the given threshold. Top-k frequent pattern mining was proposed to solve the problem, and it mines top-k important patterns without any threshold setting. Through this method, users can find patterns from ones with the highest frequency to ones with the k-th highest frequency regardless of databases. In this paper, we provide knowledge both on frequent and top-k pattern mining. Although top-k frequent pattern mining extracts top-k significant patterns without the setting, it cannot consider both item quantities in transactions and relative importance of items in databases, and this is why the method cannot meet requirements of many real-world applications. That is, patterns with low frequency can be meaningful, and vice versa, in the applications. High utility pattern mining was proposed to reflect the characteristics of non-binary databases and requires a minimum threshold. Recently, top-k high utility pattern mining has been developed, through which users can mine the desired number of high utility patterns without the prior knowledge. In this paper, we analyze two algorithms related to top-k high utility pattern mining in detail. We also conduct various experiments for the algorithms on real datasets and study improvement point and development direction of top-k high utility pattern mining through performance analysis with respect to the experimental results.

Metal Gate and High-k Gate Dielectrics for sub 50 nm High Performance MOSFETs

Hokyung Park,Musarrat Hasan,Minseok Jo,Hyunsang Hwang 대한금속재료학회(구 대한금속학회) 2007 ELECTRONIC MATERIALS LETTERS Vol.3 No.2

Over the past few years, metal gates and high-k gate dielectrics have been intensively developed to implement sub 50nm CMOS technology. Nevertheless, some issues of metal gate and high-k gate dielectric need to be solved. In particular, the high density of traps in dielectric and workfunction modulation with metal gate should be addressed by either understanding the mechanism or developing a new process. In this paper, we propose an analyses method and various processes to understand and solve the problems of metal gate and high-k gate dielectrics. First, to effectively passivate high-k/Si interface traps, post metallization annealing in high pressure hydrogen ambient was investigated. Compared with conventional forming gas annealing, high pressure annealing showed improved device performance owing to the effective passivation of interface traps. Second, the effect of traps in the high-k layer was evaluated by single pulsed I(d)-V(g) measurement and reliability such as bias temperature instability. By using nano-scale analysis, we have confirmed that non-uniform oxygen vacancy causes charge trapping and reliability degradation. Then, the interaction of metal gate and gate dielectric during thermal process was investigated with various metal electrodes and systems. Metal/dielectric interaction was found to be severe in elemental and ternary metal electrodes, while the binary metal electrode showed minimum interaction. To achieve appropriate workfunction with minimal interaction, the bi-layer metal electrode and conducting oxide electrode were developed. Both electrodes showed suitable workfunction which is close to conduction and valance band of silicon with improved thermal stability.

High K<SUP>+</SUP>-Induced Relaxation by Nitric Oxide in Human Gastric Fundus

Dae Hoon Kim,Young Chul Kim*,Woong Choi,Hyo-Young Yun,Rohyun Sung,Hun Sik Kim,Heon Kim,Ra Young Yoo,Seon-Mee Park,Sei Jin Yun,Young-Jin Song,Wen-Xie Xu,Sang Jin Lee 대한생리학회-대한약리학회 2012 The Korean Journal of Physiology & Pharmacology Vol.15 No.5

This study was designed to elucidate high K⁺-induced relaxation in the human gastric fundus. Circular smooth muscle from the human gastric fundus greater curvature showed stretch-dependent high K⁺ (50 mM)-induced contractions. However, longitudinal smooth muscle produced stretch-dependent high K⁺-induced relaxation. We investigated several relaxation mechanisms to understand the reason for the discrepancy. Protein kinase inhibitors such as KT 5823 (1 ՌM) and KT 5720 (1 ՌM) which block protein kinases (PKG and PKA) had no effect on high K⁺-induced relaxation. K⁺ channel blockers except 4-aminopyridine (4-AP), a voltage-dependent K⁺ channel (K_V) blocker, did not affect high K⁺-induced relaxation. However, N(G)-nitro-L-arginine and 1H-(1,2,4)oxadiazolo (4,3-A)quinoxalin-1-one, an inhibitors of soluble guanylate cyclase (sGC) and 4-AP inhibited relaxation and reversed relaxation to contraction. High K⁺-induced relaxation of the human gastric fundus was observed only in the longitudinal muscles from the greater curvature. These data suggest that the longitudinal muscle of the human gastric fundus greater curvature produced high K⁺-induced relaxation that was activated by the nitric oxide/sGC pathway through a K_V channel-dependent mechanism.

고유전율/저유전율 LTCC 동시소성 기판의 휨 현상

조현민,김형준,이충석,방규석,강남기,Cho, Hyun-Min,Kim, Hyeong-Joon,Lee, Chung-Seok,Bang, Kyu-Seok,Kang, Nam-Kee 한국마이크로전자및패키징학회 2004 마이크로전자 및 패키징학회지 Vol.11 No.3

In this paper, warpages of heterogeneous LTCC substrates comprised of high K/low K hi-layered structure were investigated. The effect of glass content in high K LTCC layer on the warpage of substrate during co-firing process was examined. Shrinkage and dielectric properties of high K and low K green sheets were measured. In-situ camber observation by hot stage microscopy showed different camber development of heterogeneous LTCC substrates according to glass content in high K green sheet. High K green sheet containing $50\%$ glass was matched to low K green sheet in the shrinkage. Therefore, LTCC substrate of Low K/High K+$50\%$ glass structure showed flat surface after sintering. 본 연구에서는 고유전율(K100) 및 저유전율(K7.8) LTCC(Low Temperature Co-fired Ceramics) 그린 시트를 이종 LTCC 기판으로 동시 소성하는 경우, 고유전율 LTCC 내의 유리 분말 함유량에 따라 발생하는 수축 거동 변화가 이종 LTCC기판의 휨 특성에 미치는 영향에 대하여 평가하였다. 유리 분말 함유량의 증가에 따른 고유전율 LTCC 그린시트의 수축률 및 유전 특성을 측정하였으며, 고유전율/저유전율 비대칭형 적층체의 소결 거동을 고온 현미경을 이용하여 실시간으로 측정하였다. $50\%$ 유리가 첨가된 K100 조성의 경우 수축 개시 온도 및 수축 구간의 범위 , 최종 수축률이 K7.8 조성과 유사하였으며, 동시 소성 시 가장 우수한 휨 특성을 나타내었다.

Nitric Oxide-mediated Relaxation by High $K^+$ in Human Gastric Longitudinal Smooth Muscle

Kim, Young-Chul,Choi, Woong,Yun, Hyo-Young,Sung, Ro-Hyun,Yoo, Ra-Young,Park, Seon-Mee,Yun, Sei-Jin,Kim, Mi-Jung,Song, Young-Jin,Xu, Wen-Xie,Lee, Sang-Jin The Korean Society of Pharmacology 2011 The Korean Journal of Physiology & Pharmacology Vol.15 No.6

This study was designed to elucidate high-$K^+$ induced response of circular and longitudinal smooth muscle from human gastric corpus using isometric contraction. Contraction from circular and longitudinal muscle stripes of gastric corpus greater curvature and lesser curvature were compared. Circular smooth muscle from corpus greater curvature showed high $K^+$ (50 mM)-induced tonic contraction. On the contrary, however, longitudinal smooth muscle strips showed high $K^+$ (50 mM)-induced sustained relaxation. To find out the reason for the discrepancy we tested several relaxation mechanisms. Protein kinase blockers like KT5720, PKA inhibitor, and KT5823, PKG inhibitor, did not affect high $K^+$-induced relaxation. $K^+$ channel blockers like tetraethylammonium (TEA), apamin (APA), glibenclamide (Glib) and barium ($Ba^{2+}$) also had no effect. However, N(G)-nitro-L-arginine (L-NNA) and 1H-(1,2,4) oxadiazolo (4,3-A) quinoxalin-1-one (ODQ), an inhibitor of soluble guanylate cyclase (sGC) and 4-AP (4-aminopyridine), voltage-dependent $K^+$ channel (KV) blocker, inhibited high $K^+$ -induced relaxation, hence reversing to tonic contraction. High $K^+$-induced relaxation was observed in gastric corpus of human stomach, but only in the longitudinal muscles from greater curvature not lesser curvature. L-NNA, ODQ and KV channel blocker sensitive high $K^+$-induced relaxation in longitudinal muscle of higher portion of corpus was also observed. These results suggest that longitudinal smooth muscle from greater curvature of gastric corpus produced high $K^+$-induced relaxation which was activated by NO/sGC pathway and by $K_V$ channel dependent mechanism.

Nitric Oxide-mediated Relaxation by High K^+ in Human Gastric Longitudinal Smooth Muscle

김영철,윤효영,성노현,유라영,윤세진,최웅,박선미,김미정,송영진,Wen-Xie Xu,이상진 대한약리학회 2011 The Korean Journal of Physiology & Pharmacology Vol.15 No.6

This study was designed to elucidate high-K^+ induced response of circular and longitudinal smooth muscle from human gastric corpus using isometric contraction. Contraction from circular and longitudinal muscle stripes of gastric corpus greater curvature and lesser curvature were compared. Circular smooth muscle from corpus greater curvature showed high K^+ (50 mM)-induced tonic contraction. On the contrary, however, longitudinal smooth muscle strips showed high K^+ (50 mM)-induced sustained relaxation. To find out the reason for the discrepancy we tested several relaxation mechanisms. Protein kinase blockers like KT5720, PKA inhibitor, and KT5823, PKG inhibitor, did not affect high K^+ -induced relaxation. K^+ channel blockers like tetraethylammonium (TEA), apamin (APA), glibenclamide (Glib) and barium (Ba2+) also had no effect. However, N(G)-nitro-L-arginine (L-NNA) and 1H-(1,2,4) oxadiazolo (4,3-A) quinoxalin-1-one (ODQ), an inhibitor of soluble guanylate cyclase (sGC) and 4-AP (4-aminopyridine), voltage-dependent K^+ channel (KV) blocker, inhibited high K^+ -induced relaxation, hence reversing to tonic contraction. High K^+-induced relaxation was observed in gastric corpus of human stomach, but only in the longitudinal muscles from greater curvature not lesser curvature. L-NNA, ODQ and KV channel blocker sensitive high K^+-induced relaxation in longitudinal muscle of higher portion of corpus was also observed. These results suggest that longitudinal smooth muscle from greater curvature of gastric corpus produced high K^+-induced relaxation which was activated by NO/sGC pathway and by KV channel dependent mechanism.

Characteristics of ZnO-based TFT Using La2O3 High-k Dielectrics

문연건,Sih Lee,박종완,김도현,Je-Hun Lee,정창오 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.5

In order to reduce the operation voltage of the ZnO-based thin film transistors (ZnO-TFTs), we fabricate devices using amorphous La2O3 high-k dielectrics. ZnO, as a channel layer, and ITO, as source/drain electrodes, are deposited by DC magnetron sputtering, and La2O3 high-k dielectrics are deposited by using electron cyclotron resonance-atomic layer deposition (ECR-ALD). The deposition conditions of the gate insulator were optimized for leakage current, breakdown field, and high device performance. ZnO-TFTs with high-k La2O3 gate insulators exhibited good performance. The average channel mobility, turn-on voltage, ratio of the on current to the off current, and subthreshold swing were 0.77 cm2/Vs, −0.8 V, 105, and 1.2 V/decade, respectively. We compared the characteristics of a device consisting of La2O3 to those of a device consisting of SiO2 to examine their potential for use as high-k dielectrics in future TFT devices. In order to reduce the operation voltage of the ZnO-based thin film transistors (ZnO-TFTs), we fabricate devices using amorphous La2O3 high-k dielectrics. ZnO, as a channel layer, and ITO, as source/drain electrodes, are deposited by DC magnetron sputtering, and La2O3 high-k dielectrics are deposited by using electron cyclotron resonance-atomic layer deposition (ECR-ALD). The deposition conditions of the gate insulator were optimized for leakage current, breakdown field, and high device performance. ZnO-TFTs with high-k La2O3 gate insulators exhibited good performance. The average channel mobility, turn-on voltage, ratio of the on current to the off current, and subthreshold swing were 0.77 cm2/Vs, −0.8 V, 105, and 1.2 V/decade, respectively. We compared the characteristics of a device consisting of La2O3 to those of a device consisting of SiO2 to examine their potential for use as high-k dielectrics in future TFT devices.

전자-정공 효과(Core-Hole Effect) 적용에 따른 SiO₂ 고압상들의 전자구조 및 O K-edge X-선 Raman 산란 스펙트럼 계산 결과 분석

김훈 ( Hoon Khim ),이유수 ( Yoo Soo Yi ),이성근 ( Sung Keun Lee ) 한국광물학회 2017 광물과 암석 (J.Miner.Soc.Korea) Vol.30 No.2

SiO₂는 지각과 맨틀을 구성하는 풍부한 물질로 고압 상태의 SiO₂ 원자구조를 결정짓는 전자구조적 특성에 대한 상세한 이해는 지구 내부의 탄성과 열역학적 성질에 대한 통찰을 제공한다. SiO₂처럼 경원소(low-z)로 이루어진 지구 물질의 고압상 전자구조는 in situ 고압 XRS (x-ray Raman scattering) 실험을 통해 연구되어 왔다. 하지만 기존의 고압 실험 방법으로는 물질의 국소 원자구조와 XRS 스펙트럼 간 상관관계를 밝히는데 한계가 있다. 이를 극복하고 더 높은 압력에서 존재하는 SiO₂에 대한 XRS 정보를 얻기 위해 밀도 범함수 이론(density functional theory; DFT)에 기반을 둔 제1원리(ab initio) 계산법을 이용한 XRS 스펙트럼 계산 연구들이 진행되고 있다. 비탄성 X-선 산란에 의하여 원자핵 주변 1s 오비탈에 만들어지는 전자-정공(core-hole)은 경원소 물질의 국소 전자구조에 크게 영향을 미치기 때문에 O K-edge XRS 스펙트럼 형태를 계산할 때 중요하게 고려해야 한다. 본 연구에서는 온-퍼텐셜 선형보충파(full-potential linearized augmented plane wave; FP-LAPW) 방법론에 기반하는 WIEN2k 프로그램을 사용하여 α-quartz, α-cristobalite 그리고 CaCl₂-구조를 갖는 SiO₂에 대한 O 원자 전자 오비탈의 부분 상태밀도(partial density of states; PDOS)와 O K-edge XRS 스펙트럼을 계산하였다. 또한, CaCl₂-구조를 갖는 SiO₂의 O 원자 PDOS의 전자-정공 효과의 적용 여부에 따른 차이를 비교하여, 원자핵 부근 전자구조 변화에 따른 PDOS의 피크 세기와 위치 변화가 크게 나타났다는 사실을 확인할 수 있었다. 또한 계산된 각 SiO₂ 구조의 O K-edge XRS 스펙트럼이 각 SiO₂구조에서 계산된 O 원자의 p* 오비탈의 PDOS 결과와 매우 유사한 형태를 갖고 있음을 확인하였다. 이는 O K-edge XRS 스펙트럼이 갖는 대부분의 특징적인 피크들이 O 원자의 점유 1s 오비탈에서 2p* 오비탈로의 전자전이에 기인하기 때문이다. 본 연구의 결과는 SiO2에 대한 정확한 O K-edge XRS 스펙트럼을 계산하는데 있어 전자-정공 효과를 고려해야 한다는 사실을 보여준다. 또한, 실험적으로는 재현이 어려운 고압 환경에 존재하는 CaCl₂-구조를 갖는 SiO₂ (~63 GPa)에 대한 O K-edge XRS 스펙트럼 계산을 통해, 제1원리 계산이 고압상 물질의 물성 연구에 이용될 수 있다는 사실을 보여준다. SiO2 is one of the most abundant constituents of the Earth`s crust and mantle. Probing its electronic structures at high pressures is essential to understand their elastic and thermodynamic properties in the Earth`s interior. The in situ high-pressure x-ray Raman scattering (XRS) experiment has been effective in providing detailed bonding transitions of the low-z materials under extreme compression. However, the relationship between the local atomic structures and XRS features at high pressure has not been fully established. The ab initio calculations have been used to overcome such experimental difficulties. Here we report the partial density of states (PDOS) of O atoms and the O K-edge XRS spectra of α-quartz, α-cristobalite, and CaCl₂-type SiO₂ phases calculated using ab initio calculations based on the full-potential linearized augmented plane wave (FP-LAPW) method. The unoccupied O PDOSs of the CaCl₂-type SiO₂ calculated with and without applying the core-hole effects present significantly distinctive features. The unoccupied O p states of the α-quartz, α- cristobalite and CaCl₂-type SiO₂ calculated with considering the core-hole effect present similar features to their calculated O K-edge XRS spectra. This confirms that characteristic features in the O K-edge XRS stem from the electronic transition from 1s to unoccupied 2p states. The current results indicate that the core-hole effects should be taken in to consideration to calculate the precise O K-edge XRS features of the SiO₂ polymorphs at high pressure. Furthermore, we also calculated O K-edge XRS spectrum for CaCl₂-type SiO₂ at ~63 GPa. As the experimental spectra for these high pressure phases are not currently available, the current results for the CaCl₂-type SiO₂ provide useful prospect to predict in situ high-pressure XRS spectra.

K-MBSR이 고등학생의 정서조절 곤란 감소 및 메타인지 향상에 미치는 효과

정문희(Moon-Hee Jung),최윤정(Yoon-Jung Choi) 한국명상학회 2019 한국명상학회지 Vol.9 No.1

본 연구의 목적은 한국형 마음챙김명상에 기반한 스트레스 감소 프로그램(K-MBSR)이 정서조절 곤란을 겪는 고등학생의 정서조절 곤란의 감소와 메타인지 향상에 미치는 효과를 살펴보는 데에 있다. Y지역에 있는 Y고등학교 학생들을 대상으로 정서조절 곤란 척도를 이용하여 점수가 높은 학생들 중 프로그램 참여를 원하는 21명을 실험집단으로 나머지 23명을 통제집단으로 임의 배정하였다. 6주 동안 8회기(1회기 120분간)로 구성된 K-MBSR을 실시하였다. K-MBSR 프로그램을 적용한 후 정서조절 곤란척도, 메타인지검사를 통해 측정된 자료를 공변량 분산분석을 실시한 결과, 실험집단은 통제집단에 비해서 정서조절 곤란이 유의하게 감소하였고 메타인지는 유의하게 향상되었다. 구체적으로, 정서조절 곤란의 6개 하위 요인(충동통제곤란, 정서에 대한 비수용성, 정서에 대한 주의/자각부족, 정서적 명료성 부족, 정서조절 전략 접근 제한, 목표지향행동 수행 어려움) 모두에서 실험집단은 정서조절 곤란이 유의하게 감소하였고, 메타인지의 두 가지 하위 요인인 메타 인지적 지식과 메타 인지적 통제 모두에서 실험집단은 유의하게 향상되었다. 이러한 연구 결과는 K-MBSR이 부정적 정서를 완화하고 정서조절능력을 증진시키는 데 효과가 있다는 것을 시사하며, 특히 학습과 관련된 메타인지를 향상시킨다는 결과는 마음챙김명상이 학습의 효율을 높일 수 있다는 것을 시사한다. 이러한 연구 결과를 바탕으로, 학교에서 학생들의 인성 발달 및 학업 성취의 향상을 위한 학교 상담 프로그램으로서 K-MBSR의 적용 가능성에 대해 논의하였다. This study was to investigate whether the Korean version of the Mindfulness Based Stress Reduction program(K-MBSR) has an effect of emotion dysregulation decrease and meta-cognition improvement of high school students with emotion dysregulation. The subjects of this study were 21 students in the experimental group and 23 students in the control group among the students with high scores of K-DERS(the Korean version of Difficulties in Emotional Regulation Scale) scale in Y high school in Y area. The subjects participated in 8 sessions(1 session per 120 minutes) of K-MBSR for 6weeks. After applying the K-MBSR program, the score of emotion dyregulation scale and the meta-cognition inventory were used to analyze the covariance analysis. It was found to be effective in reducing emotional dysregulation and improving meta-cognition. These results suggest the applicability of K-MBSR as a school counseling program to improve students personality development and academic achievement at high school.