• 제목/요약/키워드: Interlocking

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Morphology of Retinas and Lenses in the Fish of the Genus Zacco (Cypriniformes, Cyprinidae): Possible Relationship with Prey and Habitat

  • Lim, Jae-Won;Lee, Chung-Lyul;Lee, Moo-Sam
    • Animal cells and systems
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    • v.7 no.4
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    • pp.331-335
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    • 2003
  • Vertebrates with different habitats have different proportions of visual cells, with the rod cells responding to scotopic vision and the cone cells responding to photopic and color vision in their retinas. The present work studied whether the kinds and arrangement patterns of the cone cells and interlocking morphology of the lens were related to the kind of preys and habitats in the genus Zacco. The retinas were observed by a light microscopy using H-E staining method and the interlocking formula of the lens fibers were investigated by a scanning electron microscopy. The interlocking formula of the lens fibers of Z. temmincki is an ' anchor and socket ' connection, and that of Z. platypus is a ' ball and socket ' connection. The cone cells of Z. platypus and Z. temmincki constituted compacted mosaic patterns of row type. Away from the center, the double and single cone cells gradually increased in diameter. Zacco temmincki had identical double cone cells and Z. platypus had non-identical double and single cone cells. The eyes of Z. temminckifeeding on a moving aquatic insects in relative limpid water and swift current of mid and upper stream have better resolution than that of Z. platypus feeding on mainly adhesive algae and some aquatic insects in slightly turbid water of mid stream.

Periareolar Augmentation Mastopexy with Interlocking Gore-Tex Suture, Retrospective Review of 50 Consecutive Patients

  • Franco, Johnny;Kelly, Emma;Kelly, Michael
    • Archives of Plastic Surgery
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    • v.41 no.6
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    • pp.728-733
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    • 2014
  • Background Periareolar Augmentation Mastopexy is one of the most challenging operations in plastic surgery. Problems with scar quality, areolar widening, and distortion are frequent problems that interfere with a predictable result. Methods A retrospective review was performed on fifty consecutive patients who underwent a periareolar augmentation mastopexy with the interlocking approach. Of the 50 patients, 30 had both preoperative and postoperative photographs and were the basis of the study. Results The age of the patients ranged from 19 to 56 years with the average age being 39 years. The postoperative follow-up averaged 9.5 months and the implants averaged 316 mL. There were no deaths, pulmonary embolism, deep vein thrombosis, or infected implants. Four patients had complications following surgery for an overall complication rate of 13%. Two patients developed an infected Gore-Tex suture. Two of these complications were treated with revision surgery. Five patients required reoperation for an overall reoperative rate of 16% (one patient was converted to a full mastopexy). Conclusions As a result of this retrospective study, we have found the interlocking approach to periareolar augmentation/mastopexy to be a safe and reliable operation.

Understanding of Subsurface Cavity Mechanism due to the Deterioration of Buried Pipe (노후 매립관로로 인한 지하 공동발생 메카니즘 고찰)

  • Lee, Dae-Young;Cho, Nam-Kak
    • Journal of the Korean Geotechnical Society
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    • v.32 no.12
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    • pp.33-43
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    • 2016
  • In order to analyze ground relaxation and cavity formation mechanism due to deteriorated sewer pipe, field test was carried out and a numerical assessments were compared with the field test results. An artificial underground cavity was intended using the ice block overlaying the buried pipe and confirmed that the cavity and relaxation of the surrounding ground were gradually formed as the ice block starts to melt down. Such mechanism was highly suspected to be involved with soil particle interlocking as a soil compaction was a typical process for the buried pipes. In exploring such mechanism numerically, commercially available DEM (Discrete Element Method) code PFC2D was used and the interlocking induced cavern behaviors were successfully simulated and compared with field test results by utilizing the clump logic imbedded in PFC code.

Low Carbon Concrete Prepared with Scattering-Filling Coarse Aggregate Process

  • Shen, Weiguo;Zhang, Chuan;Li, Xinling;Shi, Hua;Wang, Guiming;Tian, Xiaowu
    • International Journal of Concrete Structures and Materials
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    • v.8 no.4
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    • pp.309-313
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    • 2014
  • The volume fraction of the coarse aggregate in the conventional plastic concrete is controlled relatively low to ensure a required workability. In this paper, a new type of coarse aggregate interlocking concrete with strength ranging from C30 to C80 was prepared with scattering-filling aggregate process. The strength of concrete prepared with this method increases obviously whereas the shrinkage decreases significantly, the cement dosage in the concrete decreased 20 % at the same time. The microhardness of the ITZ between the cement paste and scattering-filling aggregate is higher than that of the original aggregate, the ITZ become narrower and tighter also. The interlocking and more even distribution of the coarse aggregate and the water absorption of the addition of extra amount of coarse aggregates contribute to the strength and performance improvement of the concrete prepared with scattering-filling aggregate process.

Design and Implementation of interlocking between Physical Computing and Social Network Service for disabled people (의사표현에 제약이 있는 장애인을 위한 피지컬 컴퓨팅을 활용한 SNS 연동 시스템 구축에 대한 연구)

  • Lee, Byung-Hoon;Jang, Won-Tae;Suh, Jae-Hee
    • Journal of Advanced Navigation Technology
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    • v.16 no.1
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    • pp.82-88
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    • 2012
  • In recent years, social awareness and concern about the SNS is getting a lot and many researches on the social impact of the SNS and variety strategies using SNS have emerged one after another. In this paper, we explain the method of interlocking between SNS and variety sensors in physical computing environment. Especially we propose that interlocking technology between sensors and twitter in Arduino platform(open source environment) can be used for the handicapped people. We design a way to send message via twitter for handicapped people using values from various sensors.

A Study On Shape Design of Implant Systems For Bone Fracture Operations By Using Finite Element Method (유한요소법을 이용한 골절치료용 임플란트 시스템 형상설계에 관한 연구)

  • Cho, Ji-Hyun;Seo, Keum-Hee;Seo, Tae-il
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.21 no.3
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    • pp.425-432
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    • 2012
  • This paper investigates shape design processes of two implant systems for bone fracture treatment ; Bone plate and Interlocking nail system. These systems can directly fix fractured human bones by surgical operations. The bone plates consist of various shaped plates and implant screws for fixation of fractured human bones with various manual instruments allowing to handle them. The material corresponds to titanium alloy Ti6Al4V because it is harmless material for human body as well as significantly rigid. This system has to be suitably rigid as well as manually bended in orthopedic surgery operations. The Interlocking nail system is a kind of nail implanted inside fractured human bones. The shapes of these systems have to be suitably designed in order to endure various loads as well as avoid any damages. If various shaped prototypes would be fabricated and tested to design the optimal shapes, optimal shapes could be obtained but very long time and expensive costs must be required. In this paper finite element method was applied into these systems. Under various boundary conditions a series of structural analysis was conducted by using ANSYS. Finally important shape factors could be determined on the basis of the analysis results.

A Study on the Design of Railway Electornic Interlocking Software Based on Real-Time Object-Oriented Modeling Technique (ROOM기법을 이용한 전자연동 소프트웨어 설계에 관한 연구)

  • Kim, Jong-Sun;Yoo, Ji-Yoon
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.50 no.9
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    • pp.439-446
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    • 2001
  • This paper considers the design technique of the real-time control algorithm to implement the electronic interlocking system which is the most important station control system in railway signal field. The proposed technique consists of the structure design and the detail design which are based on the ROOM(Real-Time Object-Oriented Modeling). The structure design is designed with a modeling using the heuristic search technique which, at first, catch and make out the specific requested condition, and then, is designed on the requested condition. The detail design can be implemented if it may get the satisfying values through the repetitive modeling after comparing and examining the data obtained from the structure design in order for the more reliable and accurate system to be implemented. The technique proposed in this paper is implemented with C++ language which is easy to be transferred and compatible with the existing interfaces, and also the operating system is designed and simulated on the VRTX which is a real-time operating system. This proposed technique is applied to the typical station model in order to prove the validity as verifying the performance of the modeled station.

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Automation Program for Drawing and Examination of Locking Sheet (연동도표 작성 및 검토 자동화 프로그램)

  • Chang, Seung-Ho;Yoo, Keun-Su;Han, Chang-Woo;Lee, Young-Soo
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.1285-1293
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    • 2008
  • Locking sheet is to display the contents of interlocking equipment for safe train drive in stations. It is being used as a basic information for interlocking equipment and for route control condition and the discussion for train operation between related parties. In spite of importance of this, there was no other way except depending on the work by hands from each stage(drawing, examination, discussion, approval) due to non-existing any tool. It is written it takes 30days from drawing to approval by procedures. However, it is required over the days in real time due to argument of each party. Furthermore on drawing of locking sheet, special conditions applied in accordance with situations of each station occasionally are different depending on the person in charge. Therefore, it is urgent to make up Logic Tree to accept special conditions of all stations. Automation Program for Drawing and Examination of Locking Sheet is to improve inefficient interlocking operation which was operated by hands in accordance with custom as automated system. The target of this program is to minimize the processing time and potential errors by personal work and set up standards for Logic Tree of special condition.

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Interlocking Earthen Masonry Units for Sustainable Residential Building Construction

  • Lubbering, Noah;Awolusi, Ibukun;Langar, Sandeep;Schultz, Arturo
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.1024-1031
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    • 2022
  • In addressing the goal for sustainability in the construction industry, the very materials used for construction and the methods utilized to implement said materials must be analyzed. Specifically, some traditional residential construction materials consist of wood, steel, and concrete. Because these materials vary in their levels of sustainability, there is a need to develop and explore new or other materials that can be used for residential construction. The primary purpose of this paper is to provide a review of interlocking earthen masonry units (IEMU) as an alternative option for residential building construction. This is in an effort to explore the variables impacting their existing and potential applications as sustainable materials and a method for residential building construction. IEMU's are then examined under the triple bottom line (TBL) sustainability framework which includes analyzing the environmental, economic, and social sustainability of IEMU's. The findings of this review may lead to further progression in the development of a framework for evaluating U.S. stakeholder adoption of IEMU's and potential implementation in U.S. residential construction.

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Antegrade Interlocking Intramedullary Nailing in Humeral Shaft Fractures (상완골 간부 골절에서의 전향적 교합성 골수강내 금속정 고정술)

  • Cho, Chul-Hyun;Song, Kwang-Soon;Kim, Sin-Ki
    • Clinics in Shoulder and Elbow
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    • v.13 no.1
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    • pp.1-6
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    • 2010
  • Purpose: To evaluate the results and complications of antegrade intramedullary interlocking nailing in humerus shaft fractures. Materials and Methods: We evaluated the clinical outcomes, radiologic results and complications in 47 patients with humerus shaft fracture treated with antegrade intramedullary interlocking nailing, and followed up until bony union. Bony union was confirmed by serial plain radiographs and the clinical outcomes were assessed according to the ASES scoring system. Results: Bony union was confirmed in 41 (87.2%) out of a total 47 patients, and the mean union period was 14.5 weeks. Major complications were as follows: 6 non-union, 3 delayed union, 2 intraoperative posterior cortex fracture in the distal humerus and 2 permanent shoulder pain, including 1 case of adhesive capsulitis. The clinical outcomes were as follows: 29 excellent, 11 good, 4 fair and 3 poor. Satisfactory outcomes were demonstrated in 40 patients (85.1%). Conclusion: Anterograde intramedullary interlocking nailing as treatment for humerus shaft fracture showed satisfactory bony union and clinical outcomes. It is considered an efficacious treatment, especially in patients with associated injury, such as multiple fractures and segmental fracture.