• Title/Summary/Keyword: MINI

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Establishment of normal reference of radiological morphology of renal artery in mini-pigs by renal angiography

  • Lee, Won Jae;Kim, Ji Yeon;Park, Jae Hyung;Park, Lisa Soyeon
    • Korean Journal of Veterinary Research
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    • v.56 no.3
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    • pp.177-181
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    • 2016
  • Mini-pigs have been widely employed in preclinical studies to explore new therapeutic strategies for diseases of the human urinary system; however, the normal reference of the renal artery has not been clearly investigated in the mini-pig model. Therefore, we aimed to establish a normal reference of the radiological morphology of the renal artery in mini-pigs by renal angiography via catheterization of the carotid artery. The renal angiographies obtained from 15 mini-pigs were evaluated to determine the orifice from the aorta, facing direction, size and the number of branches of renal arteries. Cranio-laterally facing renal arteries with 2 distal branches were mainly observed in the renal artery of mini-pigs. Both sides of the renal artery presented symmetrical sizes; however, the right renal artery orifice from the aorta was located more cranially than the left counterpart. The results of this study will contribute to radiological diagnosis of the renal artery as well as preclinical studies of mini-pigs.

Geometrical design characteristics of orthodontic mini-implants predicting maximum insertion torque

  • Katic, Visnja;Kamenar, Ervin;Blazevic, David;Spalj, Stjepan
    • The korean journal of orthodontics
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    • v.44 no.4
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    • pp.177-183
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    • 2014
  • Objective: To determine the unique contribution of geometrical design characteristics of orthodontic mini-implants on maximum insertion torque while controlling for the influence of cortical bone thickness. Methods: Total number of 100 cylindrical orthodontic mini-implants was used. Geometrical design characteristics of ten specimens of ten types of cylindrical self-drilling orthodontic mini-implants (Ortho Easy$^{(R)}$, Aarhus, and Dual Top$^{TM}$) with diameters ranging from 1.4 to 2.0 mm and lengths of 6 and 8 mm were measured. Maximum insertion torque was recorded during manual insertion of mini-implants into bone samples. Cortical bone thickness was measured. Retrieved data were analyzed in a multiple regression model. Results: Significant predictors for higher maximum insertion torque included larger outer diameter of implant, higher lead angle of thread, and thicker cortical bone, and their unique contribution to maximum insertion torque was 12.3%, 10.7%, and 24.7%, respectively. Conclusions: The maximum insertion torque values are best controlled by choosing an implant diameter and lead angle according to the assessed thickness of cortical bone.

Comparison of effects of 12 weeks of Pilates with Mini Ball versus Mat Pilates on strength, endurance, flexibility, and dynamic equilibrium in older adults. (12주간의 미니볼(Mini Ball)을 이용한 필라테스와 매트 필라테스가 노인의 근력, 전신지구력, 유연성, 동적평형성에 미치는 영향을 비교)

  • Myoung-Kwon Kim;Yong-Bum Jung;Eun-Hee Jeon
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.29 no.1
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    • pp.33-39
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    • 2023
  • Background: Most Pilates programs for older adults have been based on mat Pilates, and there has been limited research on Pilates with mini-balls. Therefore, this study aims to compare the effects of Pilates with mini-balls and mat Pilates interventions on strength, total body endurance, flexibility, and dynamic equilibrium to determine the differences. Methods: The elderly aged 65 or older living in Gyeongsan, Daegu, were divided into two groups, and the experimental group (n=10) conducted a Pilates exercise program using mini balls for 12 weeks, and the control group (n=10) conducted a mat Pilates exercise program for 12 weeks without mini balls. Strength, endurance, flexibility, and dynamic equlibrium were measured as a pre-test, and post-test was performed in the same way after 12 weeks of application. Results: Comparing the mini-ball Pilates group to the mat Pilates group, there was a significant difference (p<.05) in the 'chair sit and reach' after the intervention. In the within-group comparison, there was a significant increase (p<.05) in 'arm curl right', '30-second chair stand', '2-minute walk', 'back scratch', 'chair sit and reach', and '2.44m up and go' in the experimental group using the mini-ball Pilates program. Mat Pilates program significantly increased the within-group comparisons in '30-second chair stand' and 'chair sit and reach' (p<.05). Conclusion: It is suggested that mini-ball Pilates has a positive effect on the senior fitness and will be a good exercise method for using it as an exercise program for the elderly in the future.

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Better short-term outcomes of mini-open rotator cuff repair compared to full arthroscopic repair

  • Mehmet Akdemir;Ali Ihsan Kilic;Cengizhan Kurt;Sercan Capkin
    • Clinics in Shoulder and Elbow
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    • v.27 no.2
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    • pp.212-218
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    • 2024
  • Background: Rotator cuff tears commonly cause shoulder pain and functional impairment, prompting surgical intervention such as mini-open and arthroscopic methods, each with distinct benefits. This study aimed to compare the clinical outcomes and complications of these two approaches. Methods: A retrospective analysis was conducted on 165 patients who underwent rotator cuff repair using either arthroscopic-assisted mini-open or full arthroscopic approaches. Patient demographics, tear characteristics, clinical outcomes, and complications were assessed, with statistical analyses conducted to discern differences between the groups. Results: Among the patients, 74 (53.2%) received the mini-open approach, while 65 (46.8%) underwent arthroscopic repair, with a mean follow-up of 19.91 months. The mini-open group exhibited significantly higher postoperative American Shoulder and Elbow Surgeons (ASES) scores compared to the arthroscopic group (P=0.002). Additionally, the mini-open group demonstrated a more significant improvement in ASES scores from preoperative to postoperative assessments (P=0.001). However, the arthroscopic method had a significantly longer operative time (P<0.001). Complications, including anchor placement issues, frozen shoulder, infection, and re-rupture, occurred in 17.3% of patients overall. Re-rupture rates were 13.5% for mini-open and 6.2% for full arthroscopic repair, with no significant difference between the two methods (P=0.317). Conclusions: Both the mini-open and arthroscopic methods yielded favorable clinical outcomes for rotator cuff tear treatment, but the mini-open group exhibited superior results. Surgeons should consider patient characteristics, tear attributes, and surgical expertise when selecting the appropriate technique.

A Study on the Planning of Elementary Mini School Using the lower part of the Apartment (아파트 저층부를 활용한 소규모 초등학교 건축계획 가능성에 대한 검토)

  • Oh, Byeong-Uk;Lee, Jae-Hoon
    • Journal of the Korean Institute of Educational Facilities
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    • v.13 no.4
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    • pp.5-14
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    • 2006
  • The purpose of this study is to suggest a model plan for a mini school using the lower part of the apartment. In order to reach this model, firstly, the existing condition of over populated schools is analyzed, secondly, the Proper size and planning module for a mini school are suggested through the analysis of 7th national curriculum for the education, and thirdly, the model plan for a mini school is suggested using the apartment under construction. Mini school will be expected to solve the problems from over populated schools, and enhance the educational effect for the primary students.

A Feasibility Study of Using a Mini-dish Cluster for Solar Power Generation (소형 태양 반사경 클러스터를 이용한 태양열 발전에 대한 타당성 연구)

  • Oh, Seung-Jin;Lee, Jung-Sung;Hyun, Joon-Ho;Kim, Nam-Jin;Chun, Won-Gee
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.161-164
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    • 2006
  • This paper introduces a preliminary work for the design of a mini-dish cluster system for power general ion. Each mini-dish (typically has a 20 to 30cm in diameter) is designed with a simple parabolic profile, concentrating sun light (after the glass glazing cover to avoid dust deposition on the reflector and facilitate cleaning) onto a centrally located small plane(or concave) mirror which is placed on the bottom side of the transparent glass cover. The mirror with a mini-dish concentrator is designed to focus beam radiation onto a focal point before it enters a bundle of optical fibers connected to a remote receiver for power generation different options are considered In designing a mini-dish concentrator to maximize its effectiveness for the collection and use of solar energy.

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A Feasibility Study of using Mini-dish Systems for Solar Power Generation (소형 태양 반사경 Cluster를 이용한 태양열 발전에 대한 타당성 연구)

  • Oh, Seung-Jin;Hyun, Joon-Ho;Chun, Won-Gee;Han, Hyun-Joo;Kim, Jeong-Tai
    • New & Renewable Energy
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    • v.2 no.4 s.8
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    • pp.39-45
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    • 2006
  • This paper introduces a preliminary work for the design of a mini-dish cluster system for power generation. Each mini-dish [typically has a 20 to 30 cm in diameter] is designed with a simple parabolic profile concentrating sun light [after the glass glazing cover to avoid dust deposition on the reflector and facilitate cleaning] onto a centrally located small plane[or concave] mirror which is placed on the bottom side of a transparent glass cover. The mirror with a mini-dish concentrator is designed to focus beam radiation onto a focal point before it enters a bundle of optical fibers connected to a remote receiver for power generation. Different options are considered in designing a mini-dish concentrator to maximize its effectiveness for the collection and use of solar energy.

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A fault detection and recovery mechanism for the fault-tolerance of a Mini-MAP system (Mini-MAP 시스템의 결함 허용성을 위한 결함 감지 및 복구 기법)

  • Mun, Hong-Ju;Kwon, Wook-Hyun
    • Journal of Institute of Control, Robotics and Systems
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    • v.4 no.2
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    • pp.264-272
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    • 1998
  • This paper proposes a fault detection and recovery mechanism for a fault-tolerant Mini-MAP system, and provides detailed techniques for its implementation. This paper considers the fault-tolerant Mini-MAP system which has dual layer structure from the LLC sublayer down to the physical layer to cope with the faults of those layers. For a good fault detection, a redundant and hierarchical fault supervision architecture is proposed and its implementation technique for a stable detection operation is provided. Information for the fault location is provided from data reported with a fault detection and obtained by an additional network diagnosis. The faults are recovered by the stand-by sparing method applied for a dual network composed of two equivalent networks. A network switch mechanism is proposed to achieve a reliable and stable network function. A fault-tolerant Mini-MAP system is implemented by applying the proposed fault detection and recovery mechanism.

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Surgical orthodontic treatment of skeletal Class III malocclusion using mini-implant: correction of horizontal and vertical dental compensation (Mini-implant를 이용한 III급 부정교합의 수술교정치료: 수평, 수직적 치성 보상의 조절)

  • Im, Dong-Hyuk;Park, Hyun-Jung;Park, Jae-Woo;Kim, Jeong-Il;Chang, Young-Il
    • The korean journal of orthodontics
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    • v.36 no.5
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    • pp.388-396
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    • 2006
  • Treatment of skeletal Class III malocclusion with mini-implant anchorage is discussed in relation to vertical control of the maxillary posterior dentoalveolar region and horizontal control of mandibular anterior teeth. A midpalatal mini-implant provided anchorage for intruding the maxillary posterior teeth. Mandibular mini-Implant implants were used to bring about labioversion of mandibular anterior teeth. After mandibular setback surgery, improvement of the facial profile was obtained both horizontally and vertically, Total treatment time was 11 months. Stable occlusion was maintained after 18 months of retention, The effectiveness and efficacy of mini-implants for the treatment of skeletal Class III malocclusion are also discussed.

Analysis of time to failure of orthodontic mini-implants after insertion or loading

  • Jeong, Jong-Wha;Kim, Jong-Wan;Lee, Nam-Ki;Kim, Young-Kyun;Lee, Jong-Ho;Kim, Tae-Woo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.41 no.5
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    • pp.240-245
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    • 2015
  • Objectives: This study was performed to evaluate patterns of failure time after insertion, failure rate according to loading time after insertion, and the patterns of failure after loading. Materials and Methods: A total of 331 mini-implants were classified into the non-failure group (NFG) and failure group (FG), which was divided into failed group before loading (FGB) and failed group after loading (FGA). Orthodontic force was applied to both the NFG and FGA. Failed mini-implants after insertion, ratio of FGA to NFG according to loading time after insertion, and failed mini-implants according to failed time after loading were analyzed. Results: Percentages of failed mini-implants after insertion were 15.79%, 36.84%, 12.28%, and 10.53% at 4, 8, 12, and 16 weeks, respectively. Mini-implant failure demonstrated a peak from 4 to 5 weeks after insertion. The failure rates according to loading time after insertion were 13.56%, 8.97%, 11.32%, and 5.00% at 4, 8, 12, and 16 weeks, respectively. Percentages of failed mini-implants after loading were 13.79%, 24.14%, 20.69%, and 6.9% at 4, 8, 12, and 16 weeks, respectively. Conclusion: Mini-implant stability is typically acquired 12 to 16 weeks after insertion, and immediate loading can cause failure of the mini-implant. Failure after loading was observed during the first 12 weeks.