• Title/Summary/Keyword: Mobility Patterns

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Stress analysis of anterior cantilever bridge

  • Yang, Hong-So;Ku, Chul-Whoi
    • The Journal of Korean Academy of Prosthodontics
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    • v.38 no.3
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    • pp.283-290
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    • 2000
  • State ment of Problems. Although some clinicians report long-term success with fixed partial denture (FPD) that contain cantilever pontic, the use of cantilever FPDs may be hazardous because of unfavorable leverages during mastication. Purpose of Study. This study aims to compare the stress induced in the periodontium with normal and reduced bone support, and to analyze the stress distribution patterns of anterior cantilevered FPDs using the finite element method. Results. Cantilever bridge with a reduced bone level generated the highest peak stresses in the periodontium. In the models of reduced bone support, a cantilever bridge exhibited the great-est mobility and a 3-unit fixed restorations induced the smallest mobility of canine. The highest peak stress level of a 3-unit bridge in the periodontium is similar to the unrestored situation. But stress distribution in the bone is modified. Conclusion. In reduced bone support, a cantilever bridge exhibited the greatest mobility and stress.

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Survivability, Mobility, and Functionality of n Rover for Radars in Polar Regions

  • Stansbury, Richard S.;Akers, Eric L.;Harmon, Hans P.;Agah, Arvin
    • International Journal of Control, Automation, and Systems
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    • v.2 no.3
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    • pp.343-353
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    • 2004
  • This paper presents the survivability, mobility, and functionality of a rover as part of a radar system for polar regions. Rovers can provide autonomy and precision for radars used to measure ice thickness and other characteristics of ice sheets in Greenland and Antarctica. These rovers can be used to move radar antennas in precise patterns for synthetic aperture radars while providing environmental protection and power to the onboard radar equipment. This paper describes the mobility, actuation, sensing, winterization, control, and virtual prototyping of a polar rover. The rover has been successfully tested in Greenland.

Genetic Differentiation of Phytoplasma Isolates by DNA Heteroduplex Mobility Assay and Single-Strand Conformation Polymorphism Analysis

  • Cha, Byeongjin;Han, Sangsub
    • The Plant Pathology Journal
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    • v.18 no.6
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    • pp.308-312
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    • 2002
  • Heteroduplex mobility assay (HMA) and single-strand conformation polymorphism (SSCP) analyses combined with PCR were developed for genetic differentiation of various phytoplasma isolates. In the HMA and SSCP analyses, differences in the mobility shifts and the SSCP band patterns identified three distinct types of phyto-plasmas: Type Ⅰ, jujube witches'-broom (JWB) and ligustrum witches'-broom (LiWB); Type Ⅱ, mulberry dwarf(MD) and sumac witches'-broom (SuWB); and Type Ⅲ, paulownia witches'-broom (PaWB). Results of the sequence analyses revealed that phytoplasmas of JWB and MD had 100% homology with LiWB and SuWB, respectively. On the other hand, PaWB phyto-plasma had 97.8% homology with MD phytoplasma. The PCR-HMA and SSCP techniques were very useful in determining variations in sequence among several isolates of phytoplasmas. Furthermore, the methods were rapid, economical, highly sensitive, and easy to handle with the gels.

Approaches to Reduce the Contact Resistance by the Formation of Covalent Contacts in Graphene Thin Film Transistors

  • Na, Youngeun;Han, Jaehyun;Yeo, Jong-Souk
    • Applied Science and Convergence Technology
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    • v.26 no.4
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    • pp.55-61
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    • 2017
  • Graphene, with a carrier mobility achieving up to $140,000cm^2/Vs$ at room temperature, makes it an ideal material for application in semiconductor devices. However, when the metal comes in contact with the graphene sheet, an energy barrier forms at the metal-graphene interface, resulting in a drastic reduction of the carrier mobility of graphene. In this review, the various methods of forming metal-graphene covalent contacts to lower the contact resistance are discussed. Furthermore, the graphene sheet in the area of metal contact can be cut in certain patterns, also discussed in this review, which provides a more efficient approach to forming covalent contacts, ultimately reducing the contact resistance for the realization of high-performance graphene devices.

Evaluation of Mobility and Appearance According to Gusset Size of Bodice and Sleeve Pattern (겨드랑이 무의 크기에 따른 상의의 운동기능성과 외관 평가)

  • Park, Sunhee;Lee, Yejin
    • Fashion & Textile Research Journal
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    • v.21 no.4
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    • pp.468-479
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    • 2019
  • This study used a three-dimensional-analysis method to quantitatively analyze the change of clothing appearance according to a gusset added to bodice and sleeve patterns for men in their twenties. Comparing six different patterns, the study found that patterns P1 and P2 with little gusset did not have a large difference in the strain map, and pattern P6 had no gusset in the motion of raising the arm $28^{\circ}$ to the side (M1). When the arm was raised $45^{\circ}$ to the side (M2), the P1 pattern had the smallest deformation, and only the P5 pattern had a large deformation from the neck to the armhole area. In contrast, except for in the P3 pattern, large wrinkles formed in the front and back when the arm was raised above $158^{\circ}$ (M3) from the side of the waist to the armpit. In addition, P3 had the smallest change in the hem of the bodice and sleeves. However, the appearance of P2, P3, and P5 was excellent when the arm was moved forward (M4), and the P2 and P5 patterns were the smallest at the bodice and sleeve hem. The P6 pattern showed the least fitness in terms of function. In the case of raising the arm, there was a strong correlation between gusset size and motion function, but when the motion of the arm changed, the motion function did not improved just by changing the ease size.

Development of a Dartless Bodice Pattern Prototype for Adult Women (성인 여성을 위한 상의 무다트 패턴 원형 개발)

  • Eunhye Lee
    • Journal of Fashion Business
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    • v.27 no.3
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    • pp.96-114
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    • 2023
  • In modern society, there is a tendency to prioritize both fashion and comfort, with a preference for loose-fit clothing that enhances mobility. While darts may not be visibly present on the garment's exterior, their effects should be dispersed and incorporated into the design. However, there is a significant lack of systematic research on dartless patterns in the current state. Therefore, this study focuses on investigating dartless patterns used in loose-fit clothing tailored to the body measurements of women in their 20s. The objective of this research is to develop foundational dartless patterns that serve as a basis for diverse design possibilities in loose-fit clothing. To achieve this purpose, seven dartless patterns introduced in clothing construction references were selected for the production of experimental prototypes, which were then subjected to visual evaluations by a panel of experts. Based on the evaluation results, superior patterns were selected and they underwent modification and improvement to develop the research patterns. The developed research patterns were derived through the formulation of calculation formulas, and based on these formulas, garments were produced. Subsequently, a second round of visual evaluations was conducted by a panel of experts, and notable improvements were observed in most of the aspects assessed. However, it should be noted that this study was limited to women in their 20s it did not explore a wide range of fabrics. Therefore, further research is needed in the future.

Development and Evaluation of Air Force Mechanic Parka to Enhance the Functions and Insulation (기능성과 보온성 향상을 위한 공군 정비파카 개발 및 평가)

  • Lee, Sung-Ji;Choi, Young-Lim;Nam, Yun-Ja
    • Fashion & Textile Research Journal
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    • v.14 no.2
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    • pp.294-303
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    • 2012
  • This study was designed to develop air force mechanic parka, evaluate it, and ultimately provide functionally superior parka to the air force. The development process was 1) conducting a survey, 2) identifying problems and shortcomings of currently-supplied parkas, and 3) improving the design, pattern and materials. The newly-developed parkas were evaluated in terms of their ease of fit, clothing mobility, and insulation. Ease of fit was evaluated by subjects' sensory tests, and clothing mobility was by fitness-for-motion tests and range-of-motion tests using a Goniometer. Evaluation on insulation was conducted by thermal manikins. Findings of this study were as follows: 1. In the subjective evaluation on clothing mobility, new parkas were considered to have sufficient ease of fit while previous ones scored much lower, confirming the improvement of the new version. 2. Both subjective tests and ROM measurements on fitness for motion verified the superiority of the new parkas. 3. Insulation tests found that although insulation capability of newly-developed parkas was at a similar level to those of the previous ones, their insulation capability per unit weight was superior, demonstrating that new parkas were better at blocking heat conduction. When making changes in parka patterns and designs to enhance the mobility, it was necessary to maintain the insulation function. The new parkas developed by this study was verified to be superior to the previous ones in their insulation and clothing mobility.

Study on the Safety Perception of Personal Mobility (개인형 이동장치 안전인식에 관한 연구)

  • Chanwoo Roh;Jaeduk Lee;Seyoung Ahn;Iljoon Chang
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.22 no.6
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    • pp.92-101
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    • 2023
  • The increasing use of personal mobility has led to a rise in traffic accidents and social issues. Consequently, the government is continually revising laws and regulations to address the problems associated with personal mobility. This study conducted a survey that reflects user characteristics and public perceptions based on the law revised in May 2021. The personal characteristics, legal awareness, usage patterns, risk characteristics, and risk factors were analyzed. The analysis indicated that driving on roads without separate sidewalks, speeding, and carrying passengers are hazardous practices. Moreover, Poor awareness of the legal framework governing personal mobility results in law violations. These results are significant as they highlight the need for policy measures regarding institutional and legal improvements, and they underscore the importance of enhancing social awareness about safety as personal mobility become more widespread.

Fuzzy Decision based on Motion Characteristics (동작특징에 대한 퍼지추론)

  • 박세진;김경수;최형일
    • Journal of the Korean Institute of Intelligent Systems
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    • v.7 no.4
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    • pp.9-17
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    • 1997
  • This paper describes a monitoring system that examines water quality by analyzing behavioral patterns of fishes. The water quality inspection system (WQIS) captures color images of fishes with a CCD camera, extracts out fish regions from the images, and determines motion characteristics of fishes by computing consecutive frames. We define five types of measures that reflect behavioral patterns of fishes : floatness, fledness, clustemess, diffusiveness, and mobility. These measures are utilized when the system performs fuzzy inference to induce the conclusion about water quality. We believe that the proposed system can be a solution for securing clean water.

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