• Journal of Animal Science and Technology
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• 제54권3호
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• pp.219-226
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• 2012

Gender specificity in muscle growth and development is well known. Genesis of muscle is dependent on proliferation and differentiation potential of resident myogenic satellite cells (MSCs) present in muscle fibers. Multipotential capacity of forming myocyte, osteocyte, and adipocyte like cell makes MSCs a unique stem cell. To understand the molecular mechanism involved in determination of muscle quality due to difference in hormone concentration of different gender of animals, MSCs were isolated from bovine skeletal muscle and cultured in male, female, and castrated serum supplemented media. DNA microarray used consisted of 24,000 spots with 70 mer oligo in each spot. A total of 88 genes were up-regulated and 551 genes were down-regulated by more than two fold. Among up-regulated gene, 33, 34, and 21 genes were found up-regulated in cells grown in male, female, and castrated serum, respectively. Interestingly, male serum showed 4, female 11 and castrated male showed 4 genes expressed highly in each gender. Further study on the highly up-regulated gene may unfold the mystery of gender specificity found in muscle development. Also, the identification of differentially expressed genes in gender-specific serum will add information on infrastructure of bovine genome research.

• Computers and Concrete
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• 제15권2호
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• pp.167-181
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• 2015

"Mortar or concrete pneumatically projected at high velocity onto a surface" is called Shotcrete. Models that predict shotcrete design parameters (e.g. compressive strength, slump etc) from any mixing proportions of admixtures could save considerable experimentation time consumed during trial and error based procedures. Artificial Neural Network (ANN) has been widely used for similar purposes; however, such models have been rarely applied on shotcrete design. In this study 19 samples of shotcrete test panels with varying quantities of water, steel fibers and silica fume were used to determine their slump, cost and compressive strength at different ages. A number of 3-layer Back propagation Neural Network (BPNN) models of different network architectures were used to train the network using 15 samples, while 4 samples were randomly chosen to validate the model. The predicted compressive strength from linear regression lacked accuracy with $R^2$ value of 0.36. Whereas, outputs from 3-5-3 ANN architecture gave higher correlations of $R^2$ = 0.99, 0.95 and 0.98 for compressive strength, cost and slump parameters of the training data and corresponding $R^2$ values of 0.99, 0.99 and 0.90 for the validation dataset. Sensitivity analysis of output variables using ANN can unfold the nonlinear cause and effect relationship for otherwise obscure ANN model.

• 대한가정학회지
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• 제47권10호
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• pp.123-136
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• 2009

The purpose of this study was to examine whether childbirth encouragement policy is actually helping those childbirth, and also discuss the possible directions of this policy to unfold in the future, should take. For this, We have surveyed 412 married and 437 unmarried men and women in order to investigate the individual values that influence childbirth, From these respondents and we interviewed and surveyed recipients of grants (244people), administrative officers in charge (41people), and experts (34people) to investigate their social view on the Korean government's impact. The results of this study are as follows: Firstly, most of the people (unmarried 70.3%, married 69.1%) surveyed said that important life objectives for them. Secondly, most of the people(male 44.4%, female 73.8%) surveyed said that once married shied away from having babies, (a) due to the finance and childcare burden is heavy of running a family while both parents are fulltime employed (b) because it is difficult to get pregnant due to health problems, and (c) foremost because having several children exacerbates their financial burden. Thirdly, grant recipients(75.4%), administrative officers in charge(65.9%), and experts(53.0%) all said that childbirth encouragement policy currently being implemented has little impact on their childbirth. Finally, it was established that the incentives to encourage childbirth is best suited for individuals that favor having many children.

• 한국컴퓨터그래픽스학회논문지
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• 제10권1호
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• pp.23-28
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• 2004

가상 내시경의 주된 목적은 체내 장기의 3차원적 구조를 가시화하여 광학 내시경을 모사하는데 있다. 가상 내시경 기법 중 펼친 영상 가시화 기법(unfold rendering)은 장기의 내부 구조와 병변의 유무를 쉽게 판단할 수 있도록 하는 장점이 있다. 가장 일반적으로 사용 하는 중심 경로 기반의 광선 투사법은 곡률이 급격하게 변하는 경우 광선들이 교차하여 병변이 두개로 나타나 문제가 발생할 수 있다. 이를 해결하기위해 광선들이 겹치지 않도록 보장하는 여러 기법들이 발표되었지만 계산량이 많은 단점을 가지고 있다. 본 논문에서는 경로의 제어점을 이용하여 적은 비용으로 펼친 영상을 재구성하는 방법을 제안한다. 우선 모든 중심 경로의 제어점에서 경로에 수직인 절단면을 찾는다. 이때 제어점으로부터 방사상으로 광션을 투사하여 절단면과 만나는 장기 내 벽의 위치를 파악한다. 절단면간의 교차 검사 및 보정을 통해 절단연들이 서로 교차하지 않도록 조정한다. 제어점들 사이의 샘플점들은 앞서 구한 임의의 제어점에서 광선이 투사된 위치로 부터 다음 제어점에서 투사된 위치를 잇는 선분을 보간하여 광선 투사 위치를 결정하게 된다. 마지막으로 계산된 방향 따라 광선을 투사하여 영상을 생성한다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제23권3호
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• pp.507-522
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• 2009

일반적으로 종이접기를 하고 그 종이를 다시 펼치면 흔적이 남는다. 직사각형의 종이를 이용하여 얻을 수 있는 수학적 사실과 프로그램을 접목해 보았다. 사각형의 종이를 접는 방향에 따라 골과 등성이의 형태가 다양하게 나타나며 이런 종이 모양의 흔적을 (0,1)코드와 (0,1)행렬을 이용하여 4종류로 분류하고 연구하였다. 따라서 이런 사각형 종이접기의 흔적을 보고 거꾸로 어떻게 접는지를 귀납적 추론력을 통해 코드와 종이접기의 흔적의 관계를 탐구하였다. 마지막으로 이 내용을 수학프로그램을 계발하였고 현장에서 실습을 할 수 있다.

• 한국의사학회지
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• 제32권2호
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• pp.29-41
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• 2019

We compared the texts of the two types of military books, 『Mubiji』 and 『Yungsalyujeom (戎事類占)』. In this research, it is proved that Lee-Jema transcribed a segment on martial mantic in 『Mubiji (武備志)』 which is a book on military studies and named it 「Jipungjo (知風兆)」 since he had practical interest in military affairs. Lee-Jema had been serving as a military officer when his peculiar thought was beginning to unfold and maintained his interest in military affairs until his latter years. It is necessary to take a military studies based approach to comprehend Lee-Jema's thought since military affairs had great influence on his life.

• 한국기계가공학회지
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• 제20권9호
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• pp.42-47
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• 2021

A one-touch descending lifeline that can easily be installed and rapidly evacuated in the event of a fire accident in high-rise buildings was proposed to overcome difficulties of conventional descending lifeline such as complex installation methods and procedures. However, this lifeline exhibits limitations such as restrictions in installation location and large apparatus size. Therefore, this paper proposes a sliding-type descending lifeline, which has a similar operation to that of current one-touch descending lifeline and solves the aforementioned limitations. A double square link mechanism including a sliding four-bar linkage is proposed and the descending lifeline support is redesigned to unfold in two different planes, allowing 3D movement. Additionally, the shape of the support frame is designed to obtain two attachment surfaces that can be attached to a wall, irrespective of the angle between the window and the inner wall. FEA analysis using ABAQUS is performed to ensure that the robustness of the presented support complies with the Fire Control Act Enforcement Decree. Finally, the feasibility of the proposed sliding one-touch descending lifeline is verified through fabrication.

• The Journal of Asian Finance, Economics and Business
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• 제10권2호
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• pp.321-331
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• 2023

The radical Coronavirus (COVID-19) has swiftly unfolded everywhere globally; it continues to unfold uncontrollably and critically, affecting all economies. The pandemic is not only a health issue but also has distinct effects on the global economy and enterprises. The impact of this novel Coronavirus is also well-documented in the financial sector. This study aims to investigate the impact of COVID-19 on corporate governance and banks' financial performance. Moreover, this study also examines the impact of corporate governance on banks' performance in Bangladesh. The study uses return on equity, return on assets, non-performing loans, return on investment, and earnings per share to measure the performance of the banks. And characteristics of corporate governance are measured by board size, number of independent directors on the board, number of female directors on the board, number of board meetings, and number of members in the audit committee. The study uses descriptive statistics, correlation analysis, t-test, and panel regression analysis. The study finds that COVID-19 significantly impacts the banks' performance and some corporate governance characteristics. The study also reveals that corporate governance significantly impacts the financial performance of commercial banks. The findings of this study suggest that banks should concentrate more on corporate governance.

• 대순사상과 동아시아종교
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• 제3권2호
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• pp.121-142
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• 2024

What should death be like for a deeply venerated or highly prominent Buddhist monastic? This question itself does not just pertain to death rituals, funerals, or cremations but also to the entire process, as understood within the tradition, of leaving this realm and entering into another. It is in all of these aspects that something exceptional should be highlighted to exemplify accomplishments of the given individual's religious life, and draw attention to the profound spiritual attainment of that figure that devotees believe lies beyond what is achievable by ordinary humans. The recent death of Venerable Hsing Yun, the founder of Fo Guang Shan, led to plentiful discussions in Taiwanese society from people of all walks of life, spanning scholars to media and citizens. This study will reveal the peculiarities of this interesting case, mainly as it relates to the late master's mortuary rites. In doing so, other monastics who passed away in contemporary times will be brought up for comparison. In addition to its notable innovations and creativity, the focal case of the mortuary rites for Hsing Yun manifests the tension between traditional and modern Buddhist ideologies and practices; especially as these tensions unfold within the Humanistic Buddhist context.

• 한국도서관정보학회지
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• 제39권3호
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• pp.267-297
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• 2008

이 연구는 근현대 독서 대중화 운동을 전반적으로 검토하기 위한 한 과정으로서, 2000년대 독서운동과 독서교육의 양상을 고찰하는 데 목적을 두었다. 그간 근대 독서가 시작된 1920년대부터 1990년대까지의 독서 운동과 독서교육에 관하여 고찰한 바 있으며 본고는 그 후속 연구에 속한다. 본고에서는 2000년대의 독서현상을 전 시기의 독서 현상과 비교 분석하여, 그 특징적인 면을 도출해 내고 독서운동과 독서교육의 현주소를 찾아보려는 데 목적을 두었다. 이러한 연구 목적을 염두에 두면서 본론에서는 첫째, 독서운동으로 1) 도서관과 공공기관의 독서운동, 2) 서점 및 매체, 각종 단체의 독서운동, 3) 학생 독서운동과 학교 독서교육 등으로 나누어 고찰하였으며, 둘째, 독서경향은 1) 일반 독서경향, 2) 학생 독서경향으로 대별하여 그 특징적인 경향을 살폈다. 독서운동과 독서경향에 대한 이러한 분석은 향후 독서교육 및 독서 대중화 운동을 효과적으로 전개시키는 토대로 작용할 것이다.