• 한국항공우주학회지
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• 제32권9호
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• pp.1-11
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• 2004

본 연구에서는 비정렬 격자계에서 가장 많이 쓰이는 근사 해법 중의 하나인 LU 기법의 오일러 방정식에 대한 수렴성 및 안정성에 관한 연구를 수행하였다. 적절한 스칼라 모델 방정식을 사용하여 LU기법이 갖는 고유한 특성에 관해서 해석적으로 논의하였으며, 이를 system of equations 형태인 오일러 방정식으로 확장 해석하였다. 해석 결과 LU 기법의 수렴성 및 안정성은 격자 종횡비와 연관된 특별한 독립변수의 조합으로 표현되며, 이러한 독립 변수의 조합을 사용하여 어떠한 종횡비의 격자에 대해시도 수렴성 및 안정성의 저하 현상이 발생되지 않음을 보였다.

• Korean Journal of Acupuncture
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• 제39권4호
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• pp.172-183
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• 2022

Objectives : An error was found in the recent standard by the World Health Organization (WHO) on the locations of the Upper arm Route of Lung Meridian (URLM) and its acupoints LU3 and LU4. This possible incorrect information is being taught throughout Korean medicine colleges nationwide, which follow WHO standards. Therefore, an investigation is required to sort out this discrepancy based on the evidence in historical documents. Methods : The location of WHO's URLM and LU3 and LU4 were compared with corresponding information in the classical literature. The anatomical structure mentioned in these classical documents was examined. Finally, an assessment was conducted on whether this structure is reflected in the WHO standards. Results : Classical literature prior to the early 20th century records the locations of the Lung Meridian and LU3 and LU4 of the upper arm to be in the artery on the medial aspect. This artery corresponds to the brachial artery. The location established by the WHO is on the anterolateral side of the upper arm, where no large arteries exist that can be found by haptic search or angiographically. The anterolateral side of the upper arm belongs to the Yang aspect, which does not coincide with the Yin aspect of Lung Meridian. Conclusions : The WHO's URLM and LU3-4 standards do not agree with the classical literature. The correct route must coincide with the brachial artery passing through the medial side of the humerus. The actual location of LU3-4 is on the medial aspect of the arm, just medial to the border of the biceps brachii muscle, on the brachial artery, 3-4 B-cun inferior to the anterior axillary fold.

• International journal of advanced smart convergence
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• 제13권2호
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• pp.80-87
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• 2024

This paper focuses on improving accuracy in constrained computing settings by employing the ReLU (Rectified Linear Unit) activation function. The research conducted involves modifying parameters of the ReLU function and comparing performance in terms of accuracy and computational time. This paper specifically focuses on optimizing ReLU in the context of a Multilayer Perceptron (MLP) by determining the ideal values for features such as the dimensions of the linear layers and the learning rate (Ir). In order to optimize performance, the paper experiments with adjusting parameters like the size dimensions of linear layers and Ir values to induce the best performance outcomes. The experimental results show that using ReLU alone yielded the highest accuracy of 96.7% when the dimension sizes were 30 - 10 and the Ir value was 1. When combining ReLU with the Adam optimizer, the optimal model configuration had dimension sizes of 60 - 40 - 10, and an Ir value of 0.001, which resulted in the highest accuracy of 97.07%.

• 한국세라믹학회지
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• 제53권4호
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• pp.463-467
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• 2016

$Si^{4+}-N^{3-}$ was incorporated into $Ce^{3+}-doped$ lutetium aluminum garnet ($Lu_{2.965}Ce_{0.035}Al_5O_{12}$, $LuAG:Ce^{3+}$) lattices, resulting in the formation of $Lu_{2.965}Ce_{0.035}Al_{5-x}Si_xO_{12-x}N_x$ [(Lu,Ce)AG:xSN]. For x = 0-0.25, the synthesized powders consisted of the LuAG single phase, and the lattice constant decreased owing to the smaller $Si^{4+}$ ions. However, for x > 0.25, a small amount of unknown impurity phases was observed, and the lattice constant increased. Under 450 nm excitation, the PL spectrum of $LuAG:Ce^{3+}$ exhibited the green band, peaking at 505 nm. The incorporation of $Si^{4+}-N^{3-}$ into the $Al^{3+}-O^{2-}$ sites of $LuAG:Ce^{3+}$ led to a red-shift of the emission peak wavelength from 505 to 570 nm with increasing x. Corresponding CIE chromaticity coordinates varied from the green to yellow regions. These behaviors were discussed based on the modification of the $5d^1$ split levels and crystal field surroundings of $Ce^{3+}$, which arose from the Ce-(O,N)8 bonds.

• Korean Journal of Acupuncture
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• 제29권2호
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• pp.188-199
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• 2012

Objectives : This study was performed to find the desirable remaining time of needle in the acupuncture treatment. Methods : The 21 volunteers were given acupuncture at LU9 vertically and needles were remained for 2 min, 10 min, 15 min, 30 min, respectively. The thermographic change induced by acupuncture was measured with Digital Infrared Thermographic Image at the following acupoints: LU11, LU10, LU9, LU8, LU5, LU1, and PC7. The statistical significance of thermographic change was evaluated using paired t-test and post hoc Wilcoxon test. Results : The most significant changes after acupuncture were produced when needles were remained for 10 min or 15 min. LU11, LU5, LU1, and PC7 were the point at which all of the remaining time produced significant change commonly. At LU11, the biggest change was produced when needle was remained for 15 min, while at LU5, LU1, and PC7, the biggest change was produced when needle was remained for 30 min, and the smallest change was produced when needle was remained for 10 min at all of acupoints of LU11, LU5, LU1, and PC7. The unbalance between left side and right was decreased the most largely in 15 min group. Conclusions : The results of this study suggest that the desirable remaining time of acupuncture needle might be 15 min.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2018년도 추계학술발표대회
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• pp.699-701
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• 2018

본 연구는 인공 신경망 '추론'과정에서 연산량을 줄이는 아이디어를 고안했고, 이를 구현하여 기존 알고리즘과 성능을 비교 분석하였다. 특정 데이터 셋에 대한 실험을 통해 ReLU(Rectified Linear Unit) 함수의 결과를 분석했고, 그 결과를 통해 ReLU 함수의 결과가 예측가능함을 확인했다. 또한 인공 신경망 알고리즘에 ReLU 함수의 결과 예측 기법을 적용하여 인공 신경망 추론과정을 최적화했다. 이 아이디어를 기반으로 구현된 인공 신경망은 기존 아이디어로 구현된 인공 신경망에 비해 약 3배 빠른 성능을 보였다.

• Journal of applied mathematics & informatics
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• 제41권6호
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• pp.1419-1432
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• 2023

In this study, we take into account interval-valued vector optimization problems (IVOP) and obtain their relationships to interval vector variational inequalities (IVVI) of Stampacchia and Minty kind in aspects of convexificators, as well as the (IVOP) LU-efficient solution under the LU-convexity assumption. Additionally, we examine the weak version of the (IVVI) of the Stampacchia and Minty kind and determine the relationships between them and the weakly LU-efficient solution of the (IVOP). The results of this study improve and generalizes certain earlier results from the literature.

• Korean Journal of Acupuncture
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• 제31권2호
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• pp.90-97
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• 2014

Objective : The objective of this study is to investigate the effects of smoking on the skin bioelectrical capacitance at specific acupoints of lung meridian. Methods : Bioelectrical capacitance was measured on bilateral six source points(bilateral LU10, LU9, LU7, LU6, LU5, LU1), and the changes with time and between left and right side were analyzed. Results : The skin bioelectrical capacitance at specific acupoints of lung meridian was significantly increased after smoking. And it recovered as time passed. The change of the skin bioelectrical capacitances at specific acupoints of lung meridian with time were similar between left and right. Conclusion : Smoking increases the bioelectrical capacitance at specific acupoints of lung meridian. There is no difference between the effects of smoking on the bioelectrical capacitance at left and right specific acupoints of lung meridian.

• Asian Pacific Journal of Cancer Prevention
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• 제16권2호
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• pp.831-836
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• 2015

Tumor fluid accumulation occurs in both human cancer and experimental tumor models. Solid tumors show a tendency to tumor fluid accumulation because of their anatomical and physiological features and this may be influenced by molecular factors. Fluid accumulation in the peri-tumor area also occurs in the Dunning model of rat prostate cancer as the tumor grows. In this study, the effects of tumor fluids that were obtained from Dunning prostate tumor-bearing Copenhagen rats on the strongly metastatic MAT-LyLu cell line were investigatedby examining the cell's migration and tumor fluid's toxicity and the kinetic parameters such as cell proliferation, mitotic index, and labelling index. In this research, tumor fluids were obtained from rats injected with $2{\times}10^5$ MAT-LyLu cells and treated with saline solution, and 200 nM tetrodotoxin (TTX), highly specific sodium channel blocker was used. Sterilized tumor fluids were added to medium of MAT-LyLu cells with the proportion of 20% in vitro. Consequently, it was demonstrated that Dunning rat prostate tumor fluid significantly inhibited proliferation (up to 50%), mitotic index, and labeling index of MAT-LyLu cells (up to 75%) (p<0.05) but stimulated the motility of the cells in vitro.

• 한국임상수의학회지
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• 제24권3호
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• pp.419-421
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• 2007

15년령의 중성화한 퍼그견이 거위울음소리 같은 기침 때문에 내원 하였다. 본 환축은 임상증상과 방사선 검사를 이용하여 기관지허탈로 진단하였다. 환축의 치료를 위하여 폐수(BL13), 중부(LU01), 척택(LU05), 공최(LU06), 열결(LU07), 태연(LU09) 및 천돌(CV22)에 10일간 butorphanol 약침을 실시하였으며, BL13, LU01 및 CV22에 9일간 butorphanol 약침을 추가로 실시하였다. 본 환축은 소청용탕(小靑龍湯)을 7일간 투여 받았으며, 소자강기탕(蘇子降氣湯)을 12일간 추가로 투여 받았다. 치료 후 환축은 기침을 하지 않았으며, 기관치의 직경이 방사선 사진에서 치료전보다 증가해 있었다. 3개월 후 정기 진단 시 기침은 전혀 관찰되지 않았으며, 기관지의 직경은 치료 후보다 더욱 증가해있었다. 결론적으로 본 환축은 butorphanol의 약침과 한약제의 병행으로 양호한 치료반응을 나타낸 개 기관지허탈 증례이었다.