• 대순사상논총
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• 제34집
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• pp.239-262
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• 2020

朱熹通过与陆九渊进行「无极太极」论辩, 明确了对「太极」概念的观点, 并以此为基础建构了自己宇宙本体论体系。朱熹对「太极」的主要观点和主张, 不仅被李彦迪完全理解和接受, 进一步被李彦迪继承和发明。李彦迪彻底站在朱熹的立场, 巧妙引用朱熹的观点, 与陆九渊 (孙叔暾) 相对立的曹汉辅围绕「无极而太极」的解释问题进行了论辩。到近代, 大巡思想借用无极与太极概念, 以「无极」来解释道之本体, 无极作为道之「定」的侧面, 具有本体层面上的含义 ; 以「太极」来解释万物之具体生成,变化的过程, 太极作为道之「动」的侧面, 具有作用层面上的含义。进一步, 在无极与太极概念的基础上, 大巡思想多设一个「九天应元雷声普化天尊上帝」的存在, 来发挥「掌管」和「主宰」无极与太极的作用。在当时内忧外患的时代背景下, 大巡思想试图以万能的存在——上帝, 消除一切痛苦和怨恨, 开辟充满真爱和正义的后天世界。

• Journal of Acupuncture Research
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• 제30권5호
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• pp.65-76
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• 2013

Objectives : This study was designed to find out the differences of the acupuncture sensation by body parts. Methods : Sixty-three subjects got acupuncture at five acupoints which represent five different body parts ; head($GV_{20}$), abdomen($ST_{25}$), back($BL_{24}$), upper extremity($LU_9$), lower extremity($GB_{40}$). All subjests were asked to complete questionnaire rating the intensity of 13 kinds of acupuncture sensation(acupuncture sensation scale, ASS). We compared the subjective acupuncture sensation between the body parts. Results : Intensity of acupuncture sensation of $GV_{20}$ was significantly lower than $LU_9$(p=0.001) and $GB_{40}$(p=0.000). Sum of acupuncture sensation of $GV_{20}$ was also significantly lower than $BL_{24}$(p=0.011), $LU_9$(p=0.004) and $GB_{40}$(p=0.033). Among the 13 types of acupuncture sensation scale, tingling and aching were well sensed at $GV_{20}$ and $ST_{25}$, aching, tingling and sharp pain were well sensed at $LU_9$, $GB_{40}$, dull pain, deep pressure and heaviness were well sensed at $BL_{24}$. Conclusions : Head showed significantly lower intensity of acupuncture sensation than upper extremity and lower extremity. Among the acupuncture sensation scales, tingling and aching were well sensed at head and abdomen, aching, tingling and sharp pain were well sensed at upper extremity and lower extremity, dull pain, deep pressure and heaviness were well sensed at back.

• The Journal of Advanced Prosthodontics
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• 제5권3호
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• pp.278-286
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• 2013

PURPOSE. The aim of this study was to determine whether the push-out bond strengths between the radicular dentin and fiber reinforced-composite (FRC) posts with various resin cements decreased or not, according to the coronal, middle or apical level of the root. MATERIALS AND METHODS. FRC posts were cemented with one of five resin cement groups (RelyX Unicem: Uni, Contax with activator & LuxaCore-Dual: LuA, Contax & LuxaCore-Dual: Lu, Panavia F 2.0: PA, Super-Bond C&B: SB) into extracted human mandibular premolars. The roots were sliced into discs at the coronal, middle and apical levels. Push-out bond strength tests were performed with a universal testing machine at a crosshead speed of 0.5 mm/min, and the failure aspect was analyzed. RESULTS. There were no significant differences (P>.05) in the bond strengths of the different resin cements at the coronal level, but there were significant differences in the bond strengths at the middle and apical levels (P<.05). Only the Uni and LuA cements did not show any significant decrease in their bond strengths at all the root levels (P>.05); all other groups had a significant decrease in bond strength at the middle or apical level (P<.05). The failure aspect was dominantly cohesive at the coronal level of all resin cements (P<.05), whereas it was dominantly adhesive at the apical level. CONCLUSION. All resin cement groups showed decreases in bond strengths at the middle or apical level except LuA and Uni.

• 한국비블리아학회지
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• 제27권2호
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• pp.193-212
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• 2016

이 연구의 목적은 도서관이용과 도서관예산 사이에 영향관계가 있는지를 알아보고, 이를 통해 잠재적 이용자들을 도서관으로 유인하기 위해서는 적정예산의 확보가 필요하다는 것을 설명하는데 있다. 다시 말해, 도서관예산은 도서관이용을 증진시킬 수 있는 중요한 요인임을 설명하기 위해 시도되었다. 이를 위해 부산광역시 공공도서관 31개관을 대상으로 국가도서관통계시스템으로부터 확보된 2013년 통계데이터를 사용하여 분석을 실시하였다. 분석을 위해 독립변수는 도서관예산을 설명하는 '총비용지수(TFI: Total Funding Indicator) = $\sqrt{인건비{\times}자료구입비}$'와 도서관이용을 나타내는 'LU(Library Usage) = (연간 방문자수) + (연간 대출자료수) / 봉사대상인구'의 개념을 통해 산출된 값을 종속변수로 사용하였다. 연구결과는 도서관총비용지수(TFI)와 도서관이용(LU) 사이에는 영향관계가 존재하는 것으로 나타났으며, 도서관의 예산이 증가할수록 도서관이용은 증가하는 것으로 설명되었다. 본 연구의 결과가 비록 도서관예산과 도서관이용의 긍정적인 관계를 설명하고 있지만, 분석대상 및 분석기간의 제한성 및 한정성으로 인해 정책결정을 위한 도구로서 활용되기 위해서는 대상의 확대 및 분석기간의 다년화를 통한 타당성이 확보되어야 한다.

• 한국정보전자통신기술학회논문지
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• 제12권6호
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• pp.567-572
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• 2019

본 논문에서는 이진영상과 이진커널을 사용하여 컨볼루션, 풀링, ReLU 연산을 수행하는 이진 CNN 연산 알고리즘을 제안한다. 256 그레이스케일 영상을 8개의 비트평면으로 분해하고, -1과 1로 구성되는 이진커널을 사용하는 방법이다. 이진영상과 이진커널의 컨볼루션 연산은 가산과 감산으로 수행한다. 논리적으로는 XNOR 연산과 비교기로 구성되는 이진연산 알고리즘이다. ReLU와 풀링 연산은 각각 XNOR와 OR 논리연산으로 수행한다. 본 논문에서 제안한 알고리즘의 유용성을 증명하기 위한 실험을 통해, CNN 연산을 이진 논리연산으로 변환하여 수행할 수 있음을 확인한다. 이진 CNN 알고리즘은 컴퓨팅 파워가 약한 시스템에서도 딥러닝을 구현할 수 있는 알고리즘으로 스마트 폰, 지능형 CCTV, IoT 시스템, 자율주행 자동차 등의 임베디드 시스템에서 다양하게 적용될 수 있는 시스템이다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.2133-2137
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• 2012

Objective: To investigate the prognostic role of antigen KI-67 (Ki-67) and G1/S-specific cyclin-D1 (cyclin-D1) in patients with laryngeal squamous cell carcinoma (LSCC). Methods: Immunohistochemical staining (IHS) was used to determine the protein expression of Ki-67 and cyclin-D1 in LSCC tissues. Kaplan-Meier survival curves was calculated with reference to Ki-67 and cyclin-D1 levels. Results: Cyclin-D1 and Ki67 were expressed in the nuclei of cancer cells. Among the total of 92 cancer tissues examined by immunohistochemistry, 60 (65.22%) had cyclin-D1 overexpression and 56 (60.87%) had Ki67 overexpression. Cyclin-D1 overexpression is associated with the advanced stage of the cancer (P=0.029), but not with gender, age, stage of cancer, histological differentiation, anatomical site, smoking history and alcohol consumption history. Ki67 overexpression is not associated with the advanced stage, gender, age, histological differentiation, anatomical site, smoking history and alcohol consumption history. A statistically significant correlation was found between lymph node status and the expression of Ki67 (p = 0.025). Overexpression of cyclin-D1 was correlated to shorter relapse-free survival period (P<0.001). Conclusions: Overexpression of cyclin-D1 can be used as a marker to predict relapse in patients with LSCC after primary curative resection.

• The Journal of Advanced Prosthodontics
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• 제12권4호
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• pp.189-196
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• 2020

PURPOSE. The aim of the present study was to investigate the effects of surface treatments on the bond strengths between polymer-containing restorative materials and two dual-cure resin cements. MATERIALS AND METHODS. In the present study, rectangular samples prepared from Lava Ultimate (LU) and Vita Enamic (VE) blocks were used. The specimen surfaces were treated using CoJet sandblasting, 50 ㎛ Al₂O₃ sandblasting, % 9 HF (hydrofluoric) acid, ER,Cr:YSGG laser treatment, and Z-Prime. Dual-cure resin cements (TheraCem and 3M RelyX U 200) were applied on each specimen's treated surface. A micro-tensile device was used to evaluate shear bond strength. Statistical analysis was performed using the SAS 9.4v3. RESULTS. While the bond strength using TheraCem with LU or VE was not statistically significant (P=.164), the bond strength using U200 with VE was statistically significant (P=.006). In the TheraCem applied VE groups, Z-Prime and HF acid were statistically different from CoJet, Laser, and Sandblast groups. In comparison of TheraCem used LU group, there was a statistically significant difference between HF acid and other surface treatments. CONCLUSION. The bonding performance between the restorative materials and cements were material type-dependent and surface treatment had a large effect on the bond strength. Within the limitations of the study, the use of both U200 and TheraCem may be suggested if Z-prime was applied to intaglio surfaces of VE. The cementation of LU using TheraCem is suitable after HF acid conditioning of the restoration surfaces.

• 실천공학교육논문지
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• 제13권2호
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• pp.233-242
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• 2021

본 논문에서는 비전공자들을 위한 교양과정으로, 기초 인공신경망 과목 커리큘럼을 설계하기 위해, 지도학습 인공신경망 매개변수 최적화 방법과 활성화함수에 대한 기초 교육 방법을 제안하였다. 이를 위해, 프로그래밍 없이, 매개 변수 최적화 해를 스프레드시트로 찾는 방법을 적용하였다. 본 교육 방법을 통해, 인공신경망 동작 및 구현의 기초 원리 교육에 집중할 수 있다. 그리고, 스프레드시트의 시각화된 데이터를 통해 비전공자들의 관심과 교육 효과를 높일 수 있다. 제안한 내용은 인공뉴런과 Sigmoid, ReLU 활성화 함수, 지도학습데이터의 생성, 지도학습 인공신경망 구성과 매개변수 최적화, 스프레드시트를 이용한 지도학습 인공신경망 구현 및 성능 분석 그리고 교육 만족도 분석으로 구성되었다. 본 논문에서는 Sigmoid 뉴런 인공신경망과 ReLU 뉴런 인공신경망에 대해 음수허용 매개변수 최적화를 고려하여, 인공신경망 매개변수 최적화에 대한 네가지 성능분석결과를 교육하는 방법을 제안하고 교육 만족도 분석을 실시하였다.

• 건축역사연구
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• 제31권6호
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• pp.17-32
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• 2022

Ijidang(二止堂) is a private village school (seodang, 書堂) established in Okcheon, north Chungcheong province where Jungbong Jo, Heon(重峯 趙憲, 1544-1592 AD) had trained for his sound mind and body(yusangcheo, 遊賞處). Jo, Heon was a notable Neo-Confucian scholar of the Kiho School and also a righteous general leading soldiers in Joseon Dynasty. According to Ijidanggi(二止堂記), Ijidang was constructed to honor Jo, Heon and to train local talents in 1647 with the support of Song, Si-yeol(宋時烈, 1607-1689 AD),a representative scholar belong to Kiho School and other local Confucian scholars. Ijidang currently consists of Main Body(本體) in the middle along with the East(Dong-lu 東樓) and the West Pavilions(Seo-lu 西樓) attached to each side. The Main Body and the Dong-lu firstly constructed were to give lectures and to rest within. Ijidang has undergone several changes in its form so far. The surrounding nearby Ijidang shows characteristics of the Confucian architecture for training(J eong-sa, 精舍) and the building itself was to be built in a scenic place apart from the secular world in which scholars stayed, cultivated their body and mind or taught disciples within. The lecture space of Ijidang is positioned next to the main hall(Dae-cheong 大廳) unlike other typical forms of a three-bay building(samganjije 三間之制) at that period. West lu, a two-story building added afterwards in the early 18th century representing characteristics of the Gate Pavilion(Mullu, 門樓) of Neo-Confucian Academies(Seo-won, 書院) in Joseon Dynasty was typically located where the entrance and the ground floor of the main building are visible simultaneously.

• Nuclear Engineering and Technology
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• 제55권11호
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• pp.3996-4001
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• 2023

The High-flux Advanced Neutron Application Reactor (HANARO) produces radioisotopes (RIs) (¹³¹I, ¹⁹²Ir, etc.) through neutron irradiation on various RI production targets. Among them, ¹⁷⁷Lu and ¹⁶⁶Ho are particularly promising owing to their theranostic characteristics that facilitate simultaneous diagnosis and treatment. Prior to neutron irradiation, evaluating the nuclear heating of the RI production target is essential for ensuring the thermal-hydraulic safety of HANARO. In this study, the feasibility of producing ¹⁷⁷Lu and ¹⁶⁶Ho using irradiation holes of HANARO was investigated in terms of thermal-hydraulic safety. The nuclear heating rates of the RI production target by prompt and delayed radiation were calculated using MCNP6. The calculated nuclear heating rates were used as an input parameter in COMSOL Multiphysics to obtain the temperature distribution in an irradiation hole. The degree of temperature increase of the ¹⁷⁷Lu and ¹⁶⁶Ho production targets satisfied the safety criteria of HANARO. The nuclear heating rates and temperature distribution obtained through the in silico study are expected to provide valuable insight into the production of ¹⁷⁷Lu and ¹⁶⁶Ho using HANARO.