• Applied Science and Convergence Technology
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• 제25권5호
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• pp.92-97
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• 2016

Surface erosion using focused ion beam irradiation is the most promising technology for the realization of micro/nanofabrication. However, accurate fabrication of predefined structures is still challenging. This article introduces a single step surface driving method to fabricated predefined curved structures. The previously reported multi step surface driving method (MSDM) has been modified so that a single ion dose profile can be used instead of multiple ion dose profiles. Experimental realization of the method is presented with the fabrication of predefined curved surfaces as well as reference to surface propagation theory. For the purpose of verification, simulations are performed on the basis of a sound mathematical model.

• 대한족부족관절학회지
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• 제25권2호
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• pp.55-60
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• 2021

This review article attempts to describe several pathological conditions that can arise from the shortening of the Achilles tendon. The tension and tightening of the gastrocnemius-soleus-Achilles tendon complex (GSAC) can cause disharmony in the movement of the entire foot as well as the ankle joint when subjected to weight-bearing or walking. In addition, since these phenomena are observed in various lesions of the ankle joint, the dynamic shortening caused by the tension of GSAC may not be the primary cause of various ankle joint lesions, but is still considered to be a significant contributing factor.

• 대한족부족관절학회지
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• 제25권2호
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• pp.66-71
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• 2021

Achilles tendinopathy has seen good results with conservative management. However, the management of Achilles tendinopathy lacks evidence-based support, and tendinopathy patients are at risk of long-term morbidity with unpredictable clinical outcomes. Data suggests that 29% of tendinopathy patients required surgical intervention during the follow-up period. Chronic pain after damage to the Achilles tendon is a result of incomplete recovery of fibrous tissue. Recently, many procedures, including various injection treatments, have been tried without understanding proper preservation techniques and procedures for faster tendon recovery, especially for patients who want to quickly return to their daily lives. This article is an extensive literature review on nonoperative management of Achilles tendinopathy.

• 셀메드
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• 제8권4호
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• pp.25.1-25.2
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• 2018

The aim of this article is to suggest that Samulnori will be able to produce better and more lovable language. Samulnori is a good example of the Korean music. Samulnori is originally meaning four-percussion play. Janggu and buk made of leather which were mainly cowskin and dogskin. But jing and kkaengwari made out of brass. Four percussions are an instrument composed of a pattern based on the theory of yin and yang. The principle of Samulnori rhythms are well made up of the relaxation, tension, improvisation, escalating rhythms, and dynamic sound. Samulnori looks like two lovers exchanging sweet words in the natural forest. The push and pull between four instruments like a love quarrel. The author feels that the rhythms of the four instruments are like the whispers and cries of lovers. In conclusion, the silent or passionate rhythm of Samulnori feels like two lovers' tightrope love. The author thinks it creates a rich language of love.

• Korean Journal of Mathematics
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• 제29권1호
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• pp.25-40
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• 2021

In this article we introduce tribonacci sequence spaces c0(T) and c(T) derived by the domain of a newly defined regular tribonacci matrix T. We give some topological properties, inclusion relations, obtain the Schauder basis and determine ��-, ��- and ��- duals of the spaces c0(T) and c(T). We characterize certain matrix classes (c0(T), Y) and (c(T), Y), where Y is any of the spaces c0, c or ℓ∞. Finally, using Hausdorff measure of non-compactness we characterize certain class of compact operators on the space c0(T).

• International Journal of Industrial Entomology and Biomaterials
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• 제43권2호
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• pp.52-58
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• 2021

The article presents the results of the content of the chemical and biochemical composition of the pupa of the wild silkworm Saturnia pyri belonging to the family Saturniidae, species of Lepidoptera. The nutritional value of silkworm Saturnia pyri pupae was evaluated, which contained 51% dry matter, 52.50% crude protein, 27.89% fat, 10.50% chitin fibers, 2.5% ash and 27 macro- and microelements and 25 mg alpha tocopherols in 100 g oil. The X-ray fluorescence method was used to determine the content of mineral elements in the pupa of the silkworm Saturnia pyri. It was revealed that the pupa of this type of silkworm contains 25 elements, of which the relative amount of K, Mg, Na, Ca, Al is much higher than other elements.

• Investigative Magnetic Resonance Imaging
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• 제25권4호
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• pp.209-217
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• 2021

Magnetic resonance angiography (MRA) plays an important role in accurate diagnosis and appropriate treatment planning for patients with arterial disease. Contrast-enhanced (CE) MRA is fast and robust, offering hemodynamic information of arterial flow, but involves the risk of a side effect called nephrogenic systemic fibrosis. Various non-contrast-enhanced (NCE) MRA techniques have been developed by utilizing the fact that arterial blood is moving fast compared to background tissues. NCE MRA is completely free of any safety issues, but has different drawbacks for various approaches. This review article describes basic principles of CE and NCE MRA techniques with a focus on how to generate angiographic image contrast from a pulse sequence perspective. Advantages, pitfalls, and key applications are also discussed for each MRA method.

• 한국멀티미디어학회논문지
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• 제25권3호
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• pp.537-545
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• 2022

Emotional experience (James, 1884)[1] can affect people's behavior. There are few types of research on VR marketing(Maojun Zhou, Zeru Yan, 2018)[2] design based on emotional experience. This article is based on emotional evaluation theory and empirical research, and the VR marketing case "Buy+" online shopping platform (Wu Yongyi, 2016). It is concluded that there are three levels of emotional experience definition on VR marketing which decompose the features of the VR marketing design of "Buy+ as an online-shop" correspondingly and find out the design features of VR marketing from the perspective of emotional experience. Finally, through the analysis of the questionnaire data, it verified that vividness, functionality and effectiveness could represent the features of VR marketing design. Moreover, it analyzed the correlation among these factors. Vividness and functionality have the closest relationship among them. The definition, the components, and the correlation of the three-layer emotional experience obtained from this research can provide theoretical support and reference for other VR marketing designs.

• 한국멀티미디어학회논문지
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• 제25권10호
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• pp.1457-1467
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• 2022

The relationship between film and culture is established through a shared focus on people's lives. Culture changes at different times, which makes a dynamic and complex relationship between film and culture. Understanding this relationship helps to provide better support for current filmmaking. The purpose of this study is to provide insights into the macro issue of film and culture by exploring the relationship between film theme and culture concept. To this end, we used a case study to explore the connection between themes and culture concepts in Disney's Mulan (1998, 2020) through literature and analyses of culture concepts (Chinese "imagery" and Postmodernism). The study concludes that, "Culture assemblage" and "Vision is king" have become cultural trends that influence the creation of film theme and style to a certain extent; how to balance the relationship between the core idea of film theme and the external forms is an important issue in current filmmaking. The article contributes to promote thinking about culture in film creation, and its research perspective on different cultures and histories is innovative.

• 한국학교수학회논문집
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• 제25권3호
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• pp.243-260
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• 2022

본 글은 수학교육 지식체계의 교육적 배경이 되는 행동주의, 인지주의 중심의 수학학습심리학과 구성주의에 대한 세 가지 관점의 문헌 연구이다. 첫 번째는 수학교육과 학습심리학의 관계를 시대적 흐름으로 따라가 보는 것이고, 두 번째는 학교수학에 대한 객관주의와 구성주의의 입장을 들여다보았으며, 세 번째는 학습이론의 시각에서 바라보는 수학학습심리학과 구성주의이다. 그리고 이를 토대로 수학교육적 시사점을 논의해 보고자 하였다.