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Magnetic Compass Fault Detection Method for GPS/INS/Magnetic Compass Integrated Navigation Systems
박슬기,정호철,김정원,황동환,이상정 제어·로봇·시스템학회 2011 International Journal of Control, Automation, and Vol.9 No.2
This paper proposes a magnetic compass fault detection method for GPS/INS/Magnetic compass integrated navigation systems. The fault is assumed to be caused by the hard iron and soft iron effect and modeled as an abrupt change in the magnetic compass output. In order to detect the fault, a test statistic related with only azimuth error measurement is determined. When a fault is detected, the GPS/INS/Magnetic compass integrated navigation system is changed into a GPS/INS integrated navigation system mode. In order to show the validity of the proposed method, computer simulation and van testing are carried out. The simulation and van test results show that the proposed navigation system gives more accurate outputs than the GPS/INS/Magnetic compass without the proposed method.
박슬기,이오행,박용희,신화용,강현,백종화,정용훈,우영철 대한마취통증의학회 2015 Korean Journal of Anesthesiology Vol.68 No.4
Background: We hypothesized that induction of general anesthesia using sevoflurane improves the accuracy of noninvasive hemoglobin (SpHb) measurement of Masimo Radical-7Ⓡ Pulse CO-Oximetry by inducing peripheral vasodilation and increasing the perfusion index (PI). The aim of this study is to investigate the change in the SpHb and the PI measured by Rad7 during induction of general anesthesia using sevoflurane. Methods: The laboratory hemoglobin (Hblab) was measured before surgery by venous blood sampling. The SpHb and the PI was measured twice; before and after the induction of general anesthesia using sevoflurane. The changes of SpHb, Hbbias (Hbbias = SpHb - Hblab), and PI before and after the induction of general anesthesia were analyzed using a paired ttest. Also, a Pearson correlation coefficient analysis was used to analyze the correlation between the Hbbias and the PI. Results: The SpHb and the PI were increased after the induction of general anesthesia using sevoflurane. There was a statistically significant change in the Hbbias from -2.8 to -0.7 after the induction of general anesthesia. However, the limit of agreement (2 SD) of the Hbbias did not change after the induction of general anesthesia. The Pearson correlation coefficient between the Hbbias and the PI was not statistically significant. Conclusions: During induction of general anesthesia using sevoflurane, the accuracy of SpHb measurement was improved and precision was not changed. The correlation between Hbbias and PI was not significant.
미디어의 예술 기획과 한국 근대시의 상품 형식 —1930년대 『여성』의 언어—이미지 배치를 중심으로
박슬기 한국현대문학회 2023 한국현대문학연구 Vol.- No.71
This article examines Korean modern poetry’s commodity form and its artistic nature based on a review of the language-image layout of Yeoseong, a popular magazine from the 1930s. The discourse of free verse in the early 1920s symbolized poetic language through the absolutization of subjectivity, thereby transforming free verse into an art form of symbolic totality. However, this neglected the societal relationship between the creation and reception of poetry, overlooking the fact that modern poetry is always mediated by modern print media. With the expansion of media, the artistic planning of poetry becomes contingent on the artistic planning of media, which involves perceiving art as commodity or commodity as art. Media constructs a system by combining the understanding of linguistic text and image text, forming a capitalist equivalence system that equates metaphorical relationships into relationships of similarity. Within this equivalence system, poetry-art becomes equated with commodities. Advertisements composed of text and images are formally identical to art composed of poetry and pictures, representing the commodity format of modern poetry. In the realm of production and consumption of modern capitalist society, modern poetry exists as a commodity, suggesting the need to reassess the artistic nature of modern poetry. The artistic nature of art turned into a commodity acknowledges media as a surface for art’s societal conditions, and addressing this surface hints at the possibility of piercing the surface of capitalist equivalence where all art and objects are arranged as commodities. The “mirror” metaphor presented together by Yi Sang and Ahn Seokyoung verifies this possibility, which is enabled by focusing on the surface of equivalence itself, rather than re-transforming poetry-art as a symbolic form. 이 글에서는 1930년대 대중 잡지 『여성』의 언어—이미지 배치를 검토함으로써 한국 근대시의 상품 형식과 그것의 예술적 성격을 고찰하고자 한다. 1920년대 초 자유시 담론은 시적 언어를 주관성의 절대화에 기대어 상징화함으로써 자유시를 상징적 총체성으로서의 예술로 고양시켰다. 그러나 이는 시의 창작과 수용이라는 사회적 관계를 외면하고 성립한 것으로 근대시는 언제나 근대 인쇄 미디어에 매개되어 있다는 점을 간과하기 어렵다. 미디어의 확대와 함께 시의 예술 기획은 미디어의 예술 기획에 귀속되며, 그것은 예술을 상품으로서 혹은 상품을 예술로서 인지하게 하게 하는 것이다. 미디어는 언어 텍스트와 이미지 텍스트의 이해를 결합함으로써 하나의 체계를 구축하는데, 그것은 환유적 관계를 유사성의 관계로 등치시키는 자본주의적 등가 체계다. 이러한 등가 체계 속에서 시—예술은 상품과 등치된다. 글—이미지로 구성된 광고는 시—그림으로 구성된 예술과 형식적으로 동일하며, 이는 근대시의 상품 형식을 가리킨다. 근대 자본주의의 생산과 소비의 장에서 근대시는 상품으로서 위치하며, 이 위치는 근대시의 예술성을 새롭게 고찰해야 할 필요성을 제시한다. 상품 형식이 된 예술의 예술성이란 미디어라는 표면을 예술의 사회적 조건으로 인정하고, 이 표면 자체를 사유함으로써 모든 예술과 사물이 상품으로서 배열되는 자본주의적 등가성의 체계를 뚫을 수 있는 가능성을 가리킨다. 이상과 안석영이 함께 제시한 ‘거울’ 비유를 통해 이 가능성을 확인할 수 있다. 그것은 상징 형식으로서 시—예술을 재고양시킴으로써 실천되는 것이 아니라, 이 등가성의 표면 자체에 집중함으로써 가능한 것이다.
소아 성장의 침구 및 수기요법에 대한 중의학 임상 연구 고찰
박슬기,박소현,이선행,이진용 대한한방소아과학회 2019 대한한방소아과학회지 Vol.33 No.1
Objectives The purpose of this study is to investigate clinical studies on the effect of acupuncture, moxibustion, and manual therapy in pediatric growth by analyzing randomized controlled trials conducted in China. Methods We searched the clinical studies from the China Academic Journal (CAJ) in China National Knowledge Infrastructure (CNKI) by specific key words and criteria. Selected 31 clinical studies were collected and analyzed. Results Total of 31 randomized controlled trials were selected and analyzed. In most of the studies, the effectiveness of acupuncture, moxibustion, and manual therapy on growth was significantly high. The most commonly used therapies were massage. The most commonly used massage methods were pinching spine (捏脊), pressing and kneading Zúsānlǐ (按揉足三里), supplementing Píjīng (補脾經), supplementing Shènjīng (補腎經), rubbing Abdomen (摩腹), pushing Yǒngquán (推涌泉), supplementing Fèijīng (補肺經), kneading Tàiyáng (揉太陽), and kneading Shénquè (揉神闕) etc. Conclusions Based on the results of the clinical studies from China, acupuncture, moxibustion, and manual therapy can be a valuable option for pediatric growth.
Two-dimensional nanomaterials as emerging pseudocapacitive materials
박슬기,Puritut Nakhanivej,박호석 한국화학공학회 2019 Korean Journal of Chemical Engineering Vol.36 No.10
Supercapacitors have attracted significant attention as energy storage devices owing to their high power density, high charging rate, and long cycle life. However, they possess low energy density, which limits their practical applications. To address this issue, various high-capacitance materials, such as transition metal oxides and conducting polymers, have been investigated. Recent pioneering studies have described the emergent pseudocapacitance in twodimensional (2D) nanomaterials, which are of significant interest because of their unique structure, remarkable physical properties, and tunable surface chemistry. Through this brief review, we present our contributions to this new class of pseudocapacitive 2D nanomaterials: oxidized black phosphorous, transition metal dichalcogenides, and MXene. The surface-capacitive charge storage mechanism of 2D nanomaterials is understood through in situ spectroscopic and computational analyses. Moreover, the corresponding capacitive features and performances are maximized by nanostructuring, nanoarchitecturing, and compositional control.
English if (not)-stripping Constructions: A Direct Interpretation Approach
박슬기,김종복 한국영어학회 2022 영어학 Vol.22 No.-
English if-stripping has at least two subtypes: if-stripping and negative if-stripping. As in the typical stripping, its remnant can be either a lexical or phrasal remnant, and it receives a sentential interpretation. The paper reviews sentential analyses that capture the propositional meaning of the stripped clause through movement-cum-deletion operations. The paper discusses attested corpus data that challenge the postulation of sentential sources and argues for a direct interpretation approach that directly generates if (not)-stripping and assigns the propositional meaning through discourse-based proper resolution processes.
박슬기,정인교,정석진 한국통상정보학회 2023 통상정보연구 Vol.25 No.4
The purpose of this study is to analyze the impact of the EU CBAM on international trade and suggest policy of reaction for Korea. The results of the analysis are as follows. First, we find that when the EU unilaterally imposes a carbon tariff, and its trading partners accept it, the EU's export competitiveness increase, but the exports of trading partners such as India and Russia decrease significantly. Second, when trading partners react to the EU's actions by imposing retaliatory tariffs, the EU's exports decline, and the losses of its major trading partners are reduced. Furthermore, intra-regional trade between EU countries increases with the introduction of CBAM, while trade with non-EU countries decreases significantly. Finally, the analysis shows a significant decrease in steel and aluminum trade among the world trade goods. In conclusion, if the EU does not take the initiative to talk with its trading partners to ensure they understand and accept the introduction of CBAMs, they are likely to take retaliatory measures, resulting in a slowdown in global trade. Therefore, Korea should monitor closely the progress of discussion related to this issue and prepare policy to minimize the impact on trade from such action. 본 연구는 EU 탄소국경조정제도(CBAM)에 대하여 국제사회에서 이루어지고 있는 논의 동향을 살펴보고, 동 제도가 무역에 미치는 영향을 분석하여 향후 대응방안을 모색하는데 목적이 있다. 분석결과 첫째, EU가 일방적으로 탄소관세를 부과하고 교역 상대국들이 이를 수용하는 경우에 EU의 수출은 증가하지만 인도, 러시아를 비롯한 교역 상대국들의 수출은 큰 폭으로 감소하는 것으로 나타났다. 둘째, EU의 조치에 교역 상대국들이 반발하여 보복관세를 부과하는 경우에는 EU의 수출은 오히려 감소하고 주요 교역상대국들의 손실은 다른 시나리오에 비해 감소하는 것으로 나타났다. 또한, CBAM에 따라 EU 국가들 간 역내 교역은 증가하는 반면 비EU 국가와의 교역은 크게 감소하며, 마지막으로, 전 세계 무역 품목들 중에서 철강과 알루미늄의 교역량 감소가 크게 나타나는 것으로 분석되었다. 결론적으로 EU가 CBAM 도입에 있어서 교역 상대국들이 제도의 도입을 이해하고 수용할 수 있도록 노력과 협의를 선행하지 않는다면, 교역상대국들은 보복조치를 취하게 될 가능성이 높고 이는 전 세계의 무역을 둔화시키는 결과를 초래하게 될 것이다. 따라서 동 이슈와 관련된 논의의 진행상황을 면밀하게 파악하고, 해당 품목의 수출에 미치는 영향을 최소화 할 수 있도록 정책대응 방안이 필요하다.
Loran H-field 안테나의 지향성 보상 기법 연구
박슬기,손표웅 한국항해항만학회 2019 한국항해항만학회지 Vol.43 No.3
Although the needs for providing resilient PNT information are increasing, threats due to the intentional RFI or space weather change are challenging to resolve. eLoran, which is a terrestrial navigation system that use a high-power signal is considered as a best back-up navigation system. Depending on the user's environment in the eLoran system, the user may use one of E-field or H-field antennas. H-field antenna, which has no restriction on setting stable ground and is relatively resistant to noise of general electronic equipment, is composed of two loops, and shows anisotropic gain pattern due to the different measurement at the two loops. Therefore, the H-field antenna’s phase estimation value of signal varies depending on its direction even at the static environment. The error due to the direction of the signal should be eliminated if the user want to estimate the own position more precisely. In this paper, a method to compensate the error according to the geometric distribution between the H-field antenna and the transmitting station is proposed. A model was developed to compensate the directional error of H-field antenna based on the signal generated from the eLoran signal simulator. The model is then used to the survey measurement performed in the land area and verify its performance. 위성항법시스템의 안정적인 항법정보 제공에 대한 요구사항은 점차 증가하고 있지만, 의도적인 전파교란 및 자연환경 변화에 의한 성능 저하는 현실적으로 완벽히 해결하기 어렵다. 이러한 위성항법 시스템의 단점을 보완하기 위한 대표적인 항법시스템으로 고출력 신호를 이용한 지상파항법시스템인 eLoran이 주목받고 있고, 의도적인 전파교란에 강인하다는 장점이 있다. 사용자는 eLoran 시스템에서 사용 환경에 따라 E-field 또는 H-field 수신 안테나 중에서 적합한 것을 사용한다. 안정적인 접지 연결에 대한 제약이 없고, 상대적으로 주변 전자장비의 잡음에 강인한 H-field 안테나는 두 개의 루프로 구성되어 루프 간의 위상과 이득차이로 인해 등방성을 가지지 못한다. 그러므로 H-field 안테나는 정지위치에서도 수신한 신호의 방향에 따라 측정치의 변화가 발생하는 단점이 있고, 보다 정확한 측위 결과를 위해서는 신호의 방향에 따른 오차를 제거해야한다. 본 논문에서는 H-field 안테나와 송신국간의 기하학적 방향에 따른 오차를 제거하기 위한 지향성 보상기법을 제안하였다. eLoran 모의 신호생성기를 활용하여 오차를 분석하고 모델링하여 보상하는 기법을 개발하였고, 시뮬레이션과 차량실험을 통해 제안한 기법의 성능을 검증하였다.
전파간섭환경에서 UAV를 활용한 선박의 백업항법시스템 설계
박슬기,손표웅 한국항행학회 2019 韓國航行學會論文誌 Vol.23 No.4
Maritime back-up navigation system in port approach requires a horizontal accuracy of 10 meters in IALA (International Association of Lighthouse Authorities) recommendations. eLoran which is a best back-up navigation system that satisfies accuracy requirement has poor navigation performance depending signal environments. Especially, noise caused by multipath and electronic devices around eLoran antenna affects navigation performance. In this paper, Ship based Navigation Back-up system using UAV on Interference is designed to satisfy horizontal accuracy requirement. To improve the eLoran signal environment, UAVs are equipped with camera, IMU sensor and eLoran antenna and receivers. This proposed system is designed to receive eLoran signal through UAV-based receiver and control UAV’s position and attitude within Landmark around area. The ship-based positioning using eLoran signal, vision and attitude information received from UAV satisfy resilient and robust navigation requirements. 국제항로표지협회에서는 해양 분야에서 활용하는 백업항법시스템의 경우 항만 입출항시 10 m의 수평정확도를 보장하도록 요구하고 있다. 대표적인 해양분야의 백업항법시스템인 eLoran은 10 m 이내의 수평 정확도를 만족함이 증명되었지만, 수신환경에 따라 항법성능이 저하되기도 한다. 특히 수신 안테나 주변의 잡음 및 멀티패스 등으로 인한 요인으로 인해 특정 상황에서는 항법 자체가 불가능해지기도 한다. 본 논문에서는 이러한 환경에서 항만입출항 조건의 수평정확도 요구성능을 만족하기 위하여 UAV (unmanned aerial vehicles)를 활용한 선박의 백업항법시스템을 설계하였다. eLoran 신호 수신에 영향을 주는 주변 환경의 영향을 감소시키기 위하여 UAV에 카메라, IMU센서, eLoran 안테나 및 수신기를 장착하였으며, 선박의 안테나보다 높은 곳에서 카메라를 이용하여 랜드마크를 추적하고 일정 범위 내에서 eLoran 신호 수신과 위치 및 자세를 제어하도록 설계하였다. 선박에서는 UAV로부터 수신한 영상 및 자세 정보와 eLoran 신호를 이용한 선박기반 측위결과를 이용해 항만 입출항 시 수평정확도 요구성능을 만족할 수 있다.
김명순의 문학적 글쓰기의 의미 ─「생명의 과실」을 중심으로 ─
박슬기 국어문학회 2020 국어문학 Vol.74 No.-
This paper examines that the writing of Kim Myung-soon is a kind of response triggered by misunderstanding on her, especially literary responses, not explanations to reveal the truth. This is an endeavor to identify that her works were the appearance of a substantial problem in the period of establishing modern Korean Literature, and also the writing to reveal the abyss of the modern literature. Namely, Kim is obviously the subject of writing, not of woman’s writing. Kim’s works have been regarded as pieces of women’s writing, especially of Si n y eosu n g (New Woman). It was obvious that her works are the one of masterpieces that reflect the Si n y eosu n g ’s thought and life. Regarding generous opinions, her works mirrored her own life, which is proved that major characters of her works are actually herself. By using Ma n y a n cho , her pen name and Ta n sil , her childhood name, Kim, expressed herself as women suppressed in that time and designated her agonizing experience. However, in texts, her two names are not Kim’s other name but the kind of figures that lived their own speech. Their speech never integrated into the author’s language, namely Kim’s speech. These split speech does not indicate the circumstance that her one subject is divided. If anything, two or three or more individual subjects are assembled in her own subject. In other words, she speaks many words with only one mouse, in that, her speech is closes the plural speech drown concept in the idea of Blanchot. This means that she never occupies the place of ‘I’, as the absolute subject is the foundation of the modern literature, the ‘Literature of ‘I’. Furthermore, she disrupted the discourse of I by losing her own words. In this sense, her works are a kind of dark spot that have to be concealed to establish the literature of I.