• Title/Summary/Keyword: "first moved"

Search Result 489, Processing Time 0.03 seconds

Digital fabrication and application of clear aligner after alignment with NiTi archwires (NiTi 호선을 이용한 초기 배열 후 디지털 방식 투명교정장치의 적용)

  • Lim, Sung-Hoon
    • The Journal of the Korean dental association
    • /
    • v.54 no.7
    • /
    • pp.551-562
    • /
    • 2016
  • There are interferences between the teeth to be moved and the clear aligner made from setup. These interferences generate forces which move teeth to the desired position. However, these can cause incomplete tooth capture of clear aligner. When these interferences exceed the acceptable deformation of aligner, unwanted intrusion of teeth to be moved occurs. When correction of rotation or tipping of teeth is attempted, intrusion prevails before rotation or tipping. However, clear aligner can induce labiolingual tipping or intrusion easily. To achieve preliminary alignment including control of rotation and tipping, NiTi archwires with fixed appliance can be used first, and then clear aligner can be used for finishing in mild Class I maloccusion cases. For this purpose, clear aligner can be made using a digital setup and 3D printing. To move teeth using a clear aligner, tooth capture is critical. To improve tooth capture of clear aligners, slingshot or vertical elastics can be used. These were discussed with illustrations.

  • PDF

A Study on the Architectural Characteristics of Pilamseowon (필암서원(筆巖書院)의 건축(建築) 변천과정(變遷過程)에 관(關)한 연구(硏究))

  • Zo, Sang-Soon;Lee, Sang-Hae
    • Journal of architectural history
    • /
    • v.7 no.2 s.15
    • /
    • pp.63-76
    • /
    • 1998
  • Seowon(書院) was an institute for education and sacrificial rite, established privately in rural villages throughout the middle period of the Chosun dynasty(1392-1910), where scholars researched classic studies, cultivated personal characters in accordance with the Neo-Confucianism, nurtured young disciples, and performed rites at a secluded shrine where spiritual tablets of honorees were housed. This study examines the architectural characteristics of Pilamseowon(筆巖書院) in Chans'seong, Chollanamdo Province, Korea. Through the study, the architectural characteristics of Pilamseowon were found as follows: First, Pilamseowon moved twice since it had been established. Second, through the moving, the area of Pilamseowon was expanded and buildings were added. Third, some buildings of Pilamseowon reflect the previous condition of the seowon site. Take Hwakyeonroo(廓然樓) as an example, which is the main entrance pavilion of Pilamseowon. Pavilion is an appropriate type of building in sloped site. Before Hwakyeonroo was moved to the present site, it was located on sloped site, where Hwakyeonroo accordingly took the pavilion type of building. Present site condition of Pilamseowon is plane, nonetheless, Hwakyeonroo has the pavilion type of building, which reflects the previous condition of the building site. Forth, Pilamseowon consists of six spatial domains and each domain has its own entrance gate to outer area.

  • PDF

A Study on the Structural Characteristics of Spencer Jacket in Empire Style$(1789{\sim}1820)$ (엠파이어 스타일 시대$(1789{\sim}1820)$ 스펜서 재킷의 구성적 특징에 관한 연구)

  • Choi, Mi-Kyung;Jo, Jin-Sook;Choi, Jin-Hee
    • The Research Journal of the Costume Culture
    • /
    • v.14 no.1
    • /
    • pp.142-152
    • /
    • 2006
  • The purpose of the study was to demonstrate how to recreate Spencer jacket of Empire Style in an attempt to apply this historic style to theatrical costumes and other high fashion items in modern times. The study was carried out through 2 steps. First, Literature, films and other visual information were utilized in order to classify the designs of Spencer jacket. Second, Production of Spencer jacket using patterns shown in literatures and those commercially used and commercial patterns were investigated to find out design characteristics of jackets. Results and discussions are as follows: The results showed that Spencer jacket can be categorized into following three styles: (1) Jackets having front opening without button stands and standing collar, (2) Double breasted opening and notched collar, (3) Single breasted opening and flat collar with waist band. The characteristics of Spencer jacket design were as follows: (1) Short jacket length, (2) Armhole line moved inwards, (3) Long fit shaped puff sleeves, whose puff being distributed more heavily over back of the sleeve, (4) Diamond shaped back bodice, which are consisted with princess lines and shoulder lines moved backwards.

  • PDF

Determining the Dynamic Sequence of Carbonyl Groups in a Rod-Coil Liquid Crystalline Oligomer Using Two-Dimensional Raman Correlation Spectroscopy (액정올리고머에 있는 카보닐그룹들의 동적순서에 대한 2차원 라만상관분광법 연구)

  • Jung, Kab-Sang;Yu, Soo-Chang;Han Yu, Keon-Ok
    • Journal of the Korean Chemical Society
    • /
    • v.48 no.3
    • /
    • pp.261-265
    • /
    • 2004
  • We investigated the order of local movement of functional groups (-C(=O)O) in a liquid crystalline (LC) oligomer (12-4) using 2D Raman correlation spectroscopy. The results suggest that the free carbonyl near the ethyl terminal group moved first, followed by the hydrogen-bonded group. The free carbonyl group between the biphenyl groups rarely moved. Interestingly, 2D sample-to-sample correlation spectroscopy (2D STSCS) revealed that some of the carbonyl modes started to move at far below (50$^{\circ}C$) the LC temperature (135$^{\circ}C$), countering conventional beliefs.

Changes of Gyeonggi and Chungbuk Provincial Office Buildings after Relocation during Japanese Colonial Period -focusing on Suwon and Chungju- (일제강점기 관찰부 이전(移轉) 후 관련건축물의 변화에 관한 연구 -수원과 충주를 중심으로-)

  • Choi, Ji-Hae;Harn, Dong-Soo
    • Journal of architectural history
    • /
    • v.30 no.4
    • /
    • pp.7-16
    • /
    • 2021
  • This study examines changes and features of provincial office buildings in Suwon and Chungju after relocation during Japanese occupation. Gyeonggi and Chungbuk provincial offices(Gwanchalbu) were relocated by Japan. Gyeonggi Provincial Office in Suwon used HwaseongHaenggung buildings and moved to Seoul in 1910. After relocation, most of HwaseongHaenggung buildings used for Suwon Governmental hospital(JaHye Uiwon). Suwongun Office, Suwon public elementary school, Japanese Military and Suwon Police station also used HwaseongHaenggung buildings with the Hospital. At first, Japan remodeled local government buildings for their use. Most of HwaseongHaenggung buildings had been destroyed to build new buildings since 1920s. Chungbuk Provincial office in Chungju used DongHeon building which is Chungju local government building and relocated to Cheongju in 1908. DongHeon building changed to Chungju county office after relocation. This building was renovated. Chungju county office moved to other site, this building was used for Chungju county conference room. During Japanese colonial period, Suwon local government buildings were destroyed and replaced with new Japanese style buildings. Chungju local government buildings were also renovated or destroyed.

Kinematic Analysis of the Badminton Drop-shot Motion (배드민턴 드롭샷 동작의 운동학적 분석)

  • Oh, Cheong-Hwan;Choi, Su-Nam;Jeong, Ik-Su
    • Korean Journal of Applied Biomechanics
    • /
    • v.15 no.1
    • /
    • pp.221-235
    • /
    • 2005
  • The purpose of this study was to analyse badminton players' drop-shots, in order' to make players understand the principles of drop-shot motion in badminton. Three dimensional analysis was used to measure movements such as the time required per section, the change of center of gravity, joint angle and speed, and joint speed. The results of this study revealed as follows: (1) top players are faster than amateurs in the total time required per section; (2) top players moved more in the x-axis and z-axis, while amateurs moved more in the y-axis; (3) the inclination of amateurs was greater than that of top players in all phases; (4) amateurs showed larger angle on the shoulder joints than top players in the first phase, while top players showed larger angle on the shoulder joint than amateurs in the second and third phase. Amateurs' angle was larger on angle joint in the first phase than top players' ones, while top players' angle was larger in the third phase than amateurs; (5) the speed of racket head of top players was faster than that of amateurs; and the velocity of the center of gravity of amateurs was greater than that of the top players. The findings of this study were that gravity decreases during impact and then the velocity increases to perform the follow-through and making the swing fast by increasing the speed of the racket head is most important.

Meaning Transfers Depending on Personality Type -Focusing on TV Beauty Programs- (소비자 성격유형에 따른 의미전이 -TV 뷰티프로그램을 중심으로-)

  • Ahn, Suh Young;Kim, Yirang;Koh, Ae-Ran
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.40 no.2
    • /
    • pp.382-396
    • /
    • 2016
  • This study explores 1) the cultural meanings that television beauty programs deliver, 2) the ways consumers consume TV beauty programs, and 3) the differences in the meaning of television beauty programs according to personality types. An Enneagram was used to define different personality types. The Enneagram explained personalities according to underlying core energies and was useful to grasp consumer behavior. Exploratory data were collected through in-depth interviews of fifteen women in their twenties who watched television beauty programs regularly. The personality types were classified according to three core energies: head-centered, heart-centered, or body-centered. The results were: First, television beauty programs were celebrity-focused, product-focused, and consumer-focused. They were found to help consumers improve their appearance in an appearance-oriented contemporary society by sharing appearance management information. Second, consumers consumed the products from television beauty programs as well as sought a "beautifully transformed self". Third, cultural meanings moved first from a culturally-constituted world to consumer goods through television beauty programs that then moved these goods to the individual consumer through symbolic consumption behavior along with grooming rituals, evaluation practices, appreciation practices, and accounting practices. Symbolic consumption behavior differed with personality type: heartcentered consumers transferred meaning through grooming rituals and appreciation practices, head-centered consumers through evaluation practices, and body-centered consumers through accounting practices.

A Study on the Transformation in Design Process of Ronchamp Chapel (롱샹 성당의 설계 변형 과정 연구)

  • Lee, Jeong-Kyu
    • Journal of architectural history
    • /
    • v.8 no.1 s.18
    • /
    • pp.81-94
    • /
    • 1999
  • This Study aims at searching the meanings in the creative process of Ronchamp chapel by analyzing the drawings of the site, plan, section and elevation in chronological order. The origins of his architectural creation are identifying with the site(memories of Acropolis), analogies of crab shell, air plane wing and hydraulic dams. The architect informed himself about the site ,the tradition of pilgrimage associated with the place, and its devotion to the Holy Virgin; he looked into the rituals of the Catholic religion, spoke with ecclesiastics; he studied and annotated a monograph devoted to the site of Ronchamp. Also ,the plan required that it be possible to collect rainwater, since such was rare on the hill. In the first design phase, overall conception of building was carried out in the sketches and drawings from June 1950 to November 1950. The second phase in the elaboration of the project was from January 1951(at which time preliminary project was presented to the Commission of Holy Art) to April 1953. The modifications made were in response to opinions expressed by the patrons. The building moved to east and gargoyle moved to west, then, the elevations of north and west were changed. He designed the artificial land and bell tower from the first phase even after the beginning of construction ,he wanted them to be built .But they were not constructed, so the outer space for rituals of religion had no tension. I concluded that Le Corbusier had gifted ability and efforts to create spontaneous birth(after incubation) of the whole work, and the execution of drawings itself. He devoted himself to accomplish the project in spite of the change in situation or by clients.

  • PDF

Factors Effecting on the Rural Life Satisfaction of Returners to the Farm After Retirement (은퇴 후 귀농인의 농촌생활만족도에 영향을 미치는 요인)

  • Park, Gong-Ju;Yoon, Soon-Duck;Kang, Kyeong-Ha
    • Journal of Korean Society of Rural Planning
    • /
    • v.12 no.4 s.33
    • /
    • pp.63-76
    • /
    • 2006
  • This research tried to present some basic data necessary to give effective support to urban retirees who already returned to the farm by looking into factors effecting on their adjustments to the lives before they returned to the farm and after they did so to know how well they adapt to the rural lives. For the purpose, we made a survey of 408 returners to the farm over the age of 50 for 6 days from October 18 to October 23 in 2004 using questionaires. The results show the followings. First, there are significant difference in the satisfaction with the rural life occurred by the sociological demographic changes according to 'health condition', 'subjective economic ability' and 'previous job'. Second, the difference of satisfaction with the rural lift which was taken place by the reasons before they moved to the farm is effected considerably by what made them decide to return to the farm first whether they prepared for it or not and how much money they have to do so. Therefore, to succeed in adjustment to the rural lives, their decision should be made by positive causes, they have to prepare concretely for it before they carry out their plans and they had better have enough money to move. Third, the difference of satisfaction with the rural life occurred by the reasons after they moved to the farm is effected by 'satisfaction with the forming information', 'the number of friends or neighbors', 'the frequency of meeting the friendly', 'the level of intimacy with neighbors' and 'their efforts to improve the relations with other residents'. And the sensitiveness to perceive the inconvenience according to the rural life is related strongly to the satisfaction with the rural life in the above 6 areas. Fourth, the repression analysis implemented to find how much the above 3 factors effect on the satisfaction with the rural life shows that it is 'returner's current health condition', 'farming education', 'farming fund' and 'effort to be intimate with other residents' that are very important.

THREE DIMENSIONAL FINITE ELEMENT STRESS ANALYSIS OF THE MANDIBULAR CONDYLE DURING UNILATERAL CLENCHING (편측저작시 하악골 과두의 응력분포에 관한 삼차원 유한요소분석적 연군)

  • Nam, Do-Hyun;Hoe, Seong-Joo;Kim, Kwang-Nam
    • The Journal of Korean Academy of Prosthodontics
    • /
    • v.35 no.3
    • /
    • pp.517-534
    • /
    • 1997
  • It has been held that excessive mechanical forces to the osseous and soft tissues of the TMJ result in joint dysfunction. Understanding the stress pattern on TMJ is very important in TMJ research. But, it is very difficult to measure directly the biomechanical stress distribution in the TMJ when the mandible is loaded. Therefore, stress distribution in the TMJ during functional movement was studied through animal experiment or mathematical model. It was observed and compared the stress distribution occuring in the working and balancing condyle when lower right canine, lower right first molar and lower right second molar were clenched by the three dimensional finite element analysis. Also, stress distribution in the working and balancing condyles were observed and compared when $20^{\circ}$ forward and buccal bite forces were applied to the first molar. The results were as follows : 1. Stress distribution in the condyles during unilateral clenching of the first molar, second molar, canine showed no difference. In the working condyle, tensile force was concentrated on the lateral aspect of the condylar articular surface and condylar neck. And compressive force was concentrated on the anteromedial and lateral aspect of condyle. In the balancing condyle, tensile and compressive forces were concentrated on the lateral aspect of the condylar articular surface and stress transmission to the temporal bone was not observed. 2. When lateral forces were applied to the first molar, tensile forces were concentrated on the medial aspect of the condylar neck and condylar posterior surface in working and balancing condyle. Compressive force was concentrated on the anteromedial and lateral surface of the condyle and stress transmission to the temporal bone was not observed. 3. During unilateral clenching, stress in the working condyle decreased as the occlusal load moved posteriorly while the stress in the balancing condyle increased. when lateral force was applied to first molar, the incremental amount of stress was greater than vertical load. 4. During unilateral clenching, the average balancing/working condyle stress ratio was 2.52. There was a greater concentration of stress in the balancing condyle. The ratio increased as the occlusal load moved posteriorly and decreased considerably when lateral forces were applied to the first molar.

  • PDF