齊白石山水畫之特徵小考

최창원 ( Choi¸ Changwon ) 산업진흥원 2021 산업진흥연구 Vol.6 No.1

齊白石是20世紀中國近代多產的、深刻影響現代中國國畫的大師。其用一生的勤奮與追求將中國傳統文人畫的發展帶入到了世界藝術的殿堂。齊白石先生的畫作風格迥異, 內涵豐富, 有充滿童心、童趣的《芭蕉群雛圖》, 雖筆稚墨拙卻情趣盎然。也有樸實老成的《牡丹》暮年之作, 蒼勁有力, 動人心弦。還有諷刺現世, 批駁醜惡的《不倒翁》, 發人深省。當然, 最為值得去研究的還是齊白石先生的山水畫, 他的山水畫, 超越了其所在的時代, 在中國現代山水畫變革中具有獨特的歷史價值, 他是20世紀中國山水畫變革的開拓者之一。在本文中, 通過對齊白石先生的山水畫作的研究整理, 發現齊白石先生山水畫的特點, 以及其超越時代之處. Qi Baishi is a prolific master of modern Chinese painting in the 20th century and a profound influence on modern Chinese painting. With a lifetime of diligence and pursuit,he brought the development of traditional Chinese literati painting to the palace of world art. Qi Baishi's paintings have very different styles and rich connotations. There is a childlike "Plantain Crowd",which is childish but full of interest. There is also a simple and old-fashioned "Peony" in the late years,vigorous and powerful,moving heartstrings. There is also the irony of the present world,refuting the ugly "Tumbler",which is thought-provoking. Of course,the most worthy of study is Qi Baishi's landscape paintings. His landscape paintings surpassed their era and have unique historical value in the transformation of modern Chinese landscape painting. He was one of the pioneers of the transformation of Chinese landscape painting in the 20th century. In this article,through the research and collation of Qi Baishi's landscape paintings,the characteristics of Qi Baishi's landscape paintings and their surpassing of the times are discovered.

Mechanical modeling of mimicking stereocilia’s nonlinear amplifying mechanism

Changwon Lee,Sukyung Park 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.4

Spray coated 2D materials for Large area and Flexible Transparent Electrodes

ChangWon Park,Young-Min Seo,Yamujin Jang,Su-Ho Jung,YongSeung Shin,Dongmok Whang 한국진공학회 2017 한국진공학회 학술발표회초록집 Vol.2017 No.2

Activity and Safety Recognition using Smart Work Shoes for Construction Worksite

( Changwon Wang ),( Young Kim ),( Seung Hyun Lee ),( Nak-jun Sung ),( Se Dong Min ),( Min-hyung Choi ) 한국인터넷정보학회 2020 KSII Transactions on Internet and Information Syst Vol.14 No.2

Workers at construction sites are easily exposed to many dangers and accidents involving falls, tripping, and missteps on stairs. However, researches on construction site monitoring system to prevent work-related injuries are still insufficient. The purpose of this study was to develop a wearable textile pressure insole sensor and examine its effectiveness in managing the real-time safety of construction workers. The sensor was designed based on the principles of parallel capacitance measurement using conductive textile and the monitoring system was developed by C# language. Three separate experiments were carried out for performance evaluation of the proposed sensor: (1) varying the distance between two capacitance plates to examine changes in capacitance charges, (2) repeatedly applying 1 N of pressure for 5,000 times to evaluate consistency, and (3) gradually increasing force by 1 N (from 1 N to 46 N) to test the linearity of the sensor value. Five subjects participated in our pilot test, which examined whether ascending and descending the stairs can be distinguished by our sensor and by weka assessment tool using k-NN algorithm. The 10-fold cross-validation method was used for analysis and the results of accuracy in identifying stair ascending and descending were 87.2% and 90.9%, respectively. By applying our sensor, the type of activity, weight-shifting patterns for balance control, and plantar pressure distribution for postural changes of the construction workers can be detected. The results of this study can be the basis for future sensor-based monitoring device development studies and fall prediction researches for construction workers.

Avulsion injuries: an update on radiologic findings

( Changwon Choi ),( Sun Joo Lee ),( Hye Jung Choo ),( In Sook Lee ),( Sung Kwan Kim ) 영남대학교 의과대학 2021 Yeungnam University Journal of Medicine Vol.38 No.4

Avulsion injuries result from the application of a tensile force to a musculoskeletal unit or ligament. Although injuries tend to occur more commonly in skeletally immature populations due to the weakness of their apophysis, adults may also be subject to avulsion fractures, particularly those with osteoporotic bones. The most common sites of avulsion injuries in adolescents and children are apophyses of the pelvis and knee. In adults, avulsion injuries commonly occur within the tendon due to underlying degeneration or tendinosis. However, any location can be involved in avulsion injuries. Radiography is the first imaging modality to diagnose avulsion injury, although advanced imaging modalities are occasionally required to identify subtle lesions or to fully delineate the extent of the injury. Ultrasonography has a high spatial resolution with a dynamic assessment potential and allows the comparison of a bone avulsion with the opposite side. Computed tomography is more sensitive for depicting a tiny osseous fragment located adjacent to the expected attachment site of a ligament, tendon, or capsule. Moreover, magnetic resonance imaging is the best imaging modality for the evaluation of soft tissue abnormalities, especially the affected muscles, tendons, and ligaments. Acute avulsion injuries usually manifest as avulsed bone fragments. In contrast, chronic injuries can easily mimic other disease processes, such as infections or neoplasms. Therefore, recognizing the vulnerable sites and characteristic imaging features of avulsion fractures would be helpful in ensuring accurate diagnosis and appropriate patient management. To this end, familiarity with musculoskeletal anatomy and mechanism of injury is necessary.

Structural insights on ATP hydrolysis-driven mechanical work of AAA+ hexamers

Changwon Kim,Sang-Hyun Rah,Tae-Young Yoon 한국구조생물학회 2017 Biodesign Vol.5 No.1

N-ethylmaleimide-sensitive factor (NSF) and ClpX are homo-hexameric proteins of the AAA+ (ATPases Associated with diverse cellular Activities) family. Using ATP, NSF recycles SNARE complexes following membrane fusion, while ClpX unfolds and translocates proteins through its pore. However, their molecular mechanisms were unclear until recently. NSF efficiently disassembles a SNARE complex using ATP that were bound before SNARE binding, by changing from a ‘split washer’ to a ‘flat washer’ conformation. ClpX utilizes numerous ATP binding and hydrolyses for translocation. Structural studies of ClpX show that two of the six ATP sites are unloadable. Hence, in ClpX, it is believed ATP hydrolyses occur in pairs and in symmetric motifs to work. Overall, NSF follows a spring loaded model, while ClpX follows a power-stroke model - showing that even for proteins that belong to the same family and that have similar structures, functions and models of action can be very different.

Educational Example of Reconciliation in the Historical Case of John Wesley and George Whitefield, with Their Methodist Societies in 18<SUP>th</SUP> Century England

Changwon Shu 한국기독교교육정보학회 2017 Journal of Christian education information tech Vol.0 No.31

This paper deals with one historical case in the Church"s history of the 18<SUP>th</SUP> century. It attempts, first of all, to search over the conflict and the process of reconciliation between John Wesley and George Whitefield in England. In the spiritual realms, many church leaders meet some crisis along with theological attacks and defenses regarding the Arminian basis and Calvinistic basis for Salvation of men in terms of predestination of God. For this particular situation, this paper will guide them to walk in a right way for the glory of God. Their efforts to be one in the Lord would be a big challenge to our modern Christian societies of the world. As this paper shows, theological unity in different groups is impossible, but towards a non-Christian society and nation, Christians should work together and show the love of God to opposite parties. The cause of every conflict is related often to more personal characters even in some theological divisions. The foundation of reconciliation however is not for human rights or humanistic love and good works, but by the Gospel of the Lord Jesus Christ. It does provide certain encouragements to sustain the struggle we face daily for reconciliation, even if there are permanent scars.

Quercetin Affects Spermatogenesis-Related Genes of Mouse Exposed to High-Cholesterol Diet

Changwon Yang,Hyocheol Bae,Gwonhwa Song,Whasun Lim 한국동물생명공학회(구 한국동물번식학회) 2020 Journal of Animal Reproduction and Biotechnology Vol.35 No.1

A high-cholesterol diet can reduce male fertility. However, it is not known whether a high-cholesterol diet can regulate the expression of genes involved in sperm maturation and sperm fertilizing ability. Quercetin, a natural product, is known to have cytoprotective effects by regulating lipid metabolism in various cell types. This study aimed to confirm the expression of genes involved in sperm maturation in the testes of mice fed a high-cholesterol diet and to determine whether quercetin can reverse the genetic regulation of cholesterol. Mice were divided into groups fed a normal chow diet and a high-cholesterol diet. Mice fed the high-cholesterol diet were dose-dependently supplemented with quercetin for 6 weeks. Investigations using quantitative PCR and in situ hybridization revealed that the high-cholesterol diet alters the expression of genes associated with sperm maturation in the testes of mice, and this was reversed with the supplementation of quercetin. In addition, the high-cholesterol diet regulated the expression of genes related to lipid metabolism in the liver of mice. Under a high-cholesterol diet, quercetin can improve male fertility by regulating the expression of genes involved in sperm maturation.

Inter-Access Network-Device Handover

Changwon Nam,Jongwook Lee,Saewoong Bahk 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.11

Simulation of the non-linear amplifying mechanism of the stereocilia bundle

Changwon Lee,Sukyung Park 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.3