• Title/Summary/Keyword: Against Direction Gravity

Search Result 14, Processing Time 0.021 seconds

Kinematics Analysis of Rumba Cucarachas Motion (룸바 쿠카라차 동작의 운동학적 분석)

  • Choi, In-Ae
    • Korean Journal of Applied Biomechanics
    • /
    • v.14 no.1
    • /
    • pp.145-160
    • /
    • 2004
  • The purposes of this study to provide quantitative data in necessary to advance techniques kinematic analysis of Cucarachas which is an action of Rumba. Then, this study is performed on 5 female players who have won within the third prize at a national athletic meeting. When whole foot reached to floor, Displacement of right-left hip joint (until $E1{\sim}E3$ average moved 15.15cm)is found at right-left direction since the hip joint is turned to right back. On the other side, large displacement is shown because Rumba Cucaracha Movement is expressed by maximum shift of hip joint to right and left direction. Displacement of right hip joint(E3$57.40{\pm}7.46$) is found in front and in rear direction since hip joint is moved in rear and in front to turn the hip joint. It may be stated that this is ideal displacement expressed by movement of whole body with artistic poise and presentation because role of hip joint is very important in technical and artistic side. Angle of right shoulder joint E2($105.44{\pm}9.64$) is got wider. It may be stated that player shifts up and abduct elbow joint to right since center of gravity of player is exceedingly shifted to right in this motion of Cucarachas. On the other hand, since this motion is abducted right elbow and shrunk external abdominal oblique to him center of body to left front of hip joint, the angle becomes narrow. It is shown that angle of knee in right knee joint E4($75.44{\pm}2.61$) is large since right leg and hip joint is turned by foot using reaction of ground and so center of body is shifted to left. Large angle of ankle E4($134.40{\pm}10.50$) in Cucaracha Movement is shown by the action of twist force using narrow part of foot and compression force against ground with adduction speed of arm. The various kinematic analyses associated with motions of dance sport have not been sufficiently peformed so far, and thus a number of research projects for dance sport should be proposed and performed to be continuous.

Kinematic Comparative Analysis of Short Turns between Skilled and Unskilled Alpine Skiers

  • Jo, Hyun Dai
    • Korean Journal of Applied Biomechanics
    • /
    • v.29 no.4
    • /
    • pp.219-226
    • /
    • 2019
  • Objective: The purpose of this study is to provide a better understanding of short turn mechanism by describing short turns after kinematic analysis and provide skiers and winter sports instructors with data through which they are able to analyze right postures for turns in skiing in a systematic, rational and scientific manner. Method: For this, a mean difference of kinematic variables (ski-hip angle, ski-shoulder twist angle, pole checking angle, the center of gravity (CG) displacement, trunk forward lean angle) was verified against a total of 12 skiers (skilled and unskilled, 6 persons each), regarding motions from the up-start to down-end points for short turns. Results: There was no difference in a ski-hip twist angle. The ski-shoulder twist angle was large at the up-start point while a pole-checking angle was high at the down-end point in skilled skiers. Concerning the horizontal displacement of CG, skilled skiers were positioned on the right side at the upstart point. No significant difference was observed in the trunk forward lean angle. Conclusion: According to the ski-shoulder twist angle and CG horizontal displacement results, the upper body should be kept leant toward the pole. In addition, big turns should be made via edging and angulation. During pole checking, the hand holding the pole should be thrown and released toward a vector direction of the forearm.

Pat Barker's Regeneration Trilogy: Psychopathology and Social Criticism (팻 바커의 『갱생』 삼부작 -정신병리학과 사회비판)

  • Chon, Sooyoung
    • Journal of English Language & Literature
    • /
    • v.56 no.4
    • /
    • pp.719-751
    • /
    • 2010
  • While Lukacs advocated the progressive effect that Darwin's evolutionary theory had on Goethe and Balzac, he was convinced that the "influences of Nietzsche, Freud, or Spengler on the writers" of his own time were "devastating." He maintains that to the "'vacuous' reality" of bourgeois life, "the bourgeois writer counterposes 'the life of the soul,' which is 'alone decisive.' This life of the soul then becomes the centre of gravity, and sometimes the sole content of his portrayal." Naming this creative tendency psychologism, he warns against the danger of "depicting only the 'inner life,' and carrying on a more or less conscious education in the direction of political and social indifferentism, of ignoring and pushing aside the 'inessential,' 'external' struggles of the world, in favour of the 'life of the soul,' which is all that matters." However, Frantz Fanon's analysis of the psychology of the colonized in Black Skin, White Masks displays that after all, "the life of the soul" cannot be separated from the "external' struggles of the world." Pat Barker's Regeneration Trilogy, which criticizes the conduct of World War I by British leaders and the British society in general with its patriarchal, gender, and class repression by depicting the psychopathology of the shell shock victims of the same war amply shows the possibility of portraying the "external struggles of the world" through the in-depth probing into "the life of the soul" and finding political and social relevance in the process.

Strength Prediction Model of Interior Flat-Plate Column Connections according to Design Parameters (설계변수에 따른 플랫플레이트-기둥 접합부의 강도산정모형)

  • Lee, Do-Bum;Park, Hong-Gun;Lee, Li-Hyung
    • Journal of the Korea Concrete Institute
    • /
    • v.18 no.3 s.93
    • /
    • pp.405-414
    • /
    • 2006
  • In the present study, a numerical analysis was performed for interior connections of continuous flat plate to analyze the effect of design parameters such as column section shape, gravity load and slab span on the behavioral characteristics of the connections. For the purpose, a computer program for nonlinear FE analysis was developed, and the validity was verified. Through the parametric study, the variations of shear stress distribution around the connection were investigated. According to the result of numerical analysis, as the length of the cross section of column in the direction of lateral load increases and gravity load increases, the effective area and the maximum shear strength providing the torsional resistance decrease considerably. And as the slab span loaded with relatively large gravity load increases, the negative moment around the connection increases and therefore the strength of connection against unbalanced moment decreases. By considering the effect of design parameters on the strength of the connections, the effective shear strength to calculate the torsional moment capacity of connection was proposed and the effectiveness of the proposed shear strength was verified.