• 제목/요약/키워드: Libre journal

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현대 건축에서 라움플란(Raumplan)과 플랑리브르(Plan Libre) 개념의 변용에 관한 연구 (A Study on the Application of the Raumplan and Plan Libre concepts in the Contemporary Architecture)

  • 박몽섭;조극래
    • 한국실내디자인학회논문집
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    • 제13권2호
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    • pp.29-37
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    • 2004
  • This study analyze the architectural space in the aspect of the 'Raumplan' and 'Plan Libre'. These concepts based on the 'Raumplan versus Plan Libre' exhibition in Delft University, Netherlands. It is generally agreed that the concept of 'Plan Libre' in connection with Le Corbusie architecture and 'Raumplan' related to Adolf Loos's works. that exhibition contents was focused an extent of modem architecture. But, These concepts continually influence contemporary architecture and offer diverse vision in architecture. Therefore, this study focused on the analysis that look for common element in the space through the case study and space element connection in change of the values, technical growth. This Paper reveals that Adolf Loos's Raumplan is similar to Louis I. Kahn's 'Room' concept and Ando Tadao's centrifugal space composition method In the dwelling architecture. And the concept 'Plan Libre': non-definitive formal system and the elements : column, free form screening wall is revived as formal application of 3 dimension composition in architecture. and transfer lots, void, and linear space in Rem Koolhaas's urban design projects. These aspects is so called topology. This topological concept is an attempt in view of the space connection state rather than formative viewpoint.

Active tendon control of suspension bridges: Study on the active cables configuration

  • Tian, Zhui;Mokrani, Bilal;Alaluf, David;Jiang, Jun;Preumont, Andre
    • Smart Structures and Systems
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    • 제19권5호
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    • pp.463-472
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    • 2017
  • In a previous study, the potential of damping suspension bridges with active stay cables has been evaluated on a numerical model of a suspension bridge, and demonstrated experimentally on a laboratory mockup. In this paper, we extend our study to explore two different configurations of the active stay-cables: one classical configuration, corresponding to attaching the active stay-cables between the top of the pylons and the deck (configuration I) and, another configuration, consisting of attaching the stay-cables between the base of the pylons and the catenary (configuration II). The analysis confirmed that both configurations are effective with a slight superiority of the second configuration. The study is conducted numerically and experimentally on a suspension bridge mock-up, by considering two types of active stay-cables. The experimental results confirmed the numerical predictions, and demonstrated the effectiveness of the second configuration.

In Search for a Common Pathway for Health Issues in Men - the Sign of a Holmesian Deduction

  • Aoun, Fouad;Chemaly, Anthony Kallas;Albisinni, Simone;Zanaty, Marc;Roumeguere, Thierry
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권1호
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    • pp.1-13
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    • 2016
  • The evidence for the existence of a common pathway for health issues in men is presented in this review. Several epidemiological studies have shown that conditions like cardiovascular diseases (CVD), metabolic syndrome, diabetes, lower urinary tract symptom (LUTS), erectile dysfunction (ED), prostate cancer, hypogonadism, depression and suicide can be associated as risk factors for each other. Thus, the risk of CVD is significantly increased in men with metabolic syndrome, ED, hypogonadism, prostate cancer and/or LUTS. In addition, the above mentioned conditions are more prevalent in atherosclerotic patients. In addition, growing evidence indicates that low androgen levels can cause metabolic syndrome. In addition, obesity, dyslipidaemia and diabetes can further reduce androgen levels potentiating their adverse effect. Low testosterone levels are also associated with a higher incidence of aggressive prostate cancer on biopsy and on definitive pathology, and lower probability of abiraterone response in the metastatic setting. Several recent studies point towards diffuse endothelial dysfunction and dysregulated pro-inflammatory state as the biological link between all these disorders. Our current hypothesis is that oxidative stress caused by these dysfunctions explains the pathogenesis of each of these conditions.

Adaptation of zirconia crowns created by conventional versus optical impression: in vitro study

  • Cetik, Sibel;Bahrami, Babak;Fossoyeux, Ines;Atash, Ramin
    • The Journal of Advanced Prosthodontics
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    • 제9권3호
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    • pp.208-216
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    • 2017
  • PURPOSE. The aim of this study was to compare the precision of optical impression (Trios, 3Shape) versus that of conventional impression (Imprint IV, 3M-ESPE) with three different margins (shoulder, chamfer, and knife-edge) on Frasaco teeth. MATERIALS AND METHODS. The sample comprised of 60 zirconia half-crowns, divided into six groups according to the type of impression and margin. Scanning electron microscopy enabled us to analyze the gap between the zirconia crowns and the Frasaco teeth, using ImageJ software, based on eight reproducible and standardized measuring points. RESULTS. No statistically significant difference was found between conventional impressions and optical impressions, except for two of the eight points. A statistically significant difference was observed between the three margin types; the chamfer and knife-edge finishing lines appeared to offer better adaptation results than the shoulder margin. CONCLUSION. Zirconia crowns created from optical impression and those created from conventional impression present similar adaptation. While offering identical results, the former have many advantages. In view of our findings, we believe the chamfer margin should be favored.

네오 코르뷔지안 건축의 공간 특성과 빛의 역할 - 앙리 시리아니, 알바로 시자, 로랑 보두앵 건축을 중심으로 - (The Spatial Characteristics and the Role of Light in the Works of Neo-Corbusian Architects - Focusing on Henri Ciriani, Alvaro Siza and Laurant Beaudouin -)

  • 김창성
    • KIEAE Journal
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    • 제15권3호
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    • pp.75-82
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    • 2015
  • Purpose: This paper tried to understand the architectural concept of Neo Corbusian architects who had succeed to the Le Corbusier's principles of modern architecture and developed into their own creative architecture and formed a big achievement in the contemporary architecture. As representative Neo Corbusian architects, Henri Cirianni, Alvaro Siza and Laurant Beaudouin were selected to study their own design concepts and principles. Method: Three step study was conducted for the paper; Firstly, investigated significant differences about modern architecture between Le Corbusier and three neo corbusian architects; Secondly, analyzed the architectural meanings of 'Plan Libre' and 'Promenade Architecture' of three neo corbusian compared to Le Corbusier's ones; Finally, deducted their own design process to integrate the architectural concept of 'Plan Libre', 'Promenade Architecture' and 'Natural Light into architectural design. Results: According to the results of the research, Henri Cirianni, Alvaro Siza and Laurant Beaudouin made a splendid progress of Corbusier's modern concept, and then, created his own originative architecture by combining Plan Libre', 'Promenade Architecture' and 'Natural Light.

Retrospective analysis of 79 patients with orbital floor fracture: outcomes and patient-reported satisfaction

  • Senese, Olivier;Boutremans, Edward;Gossiaux, Caroline;Loeb, Isabelle;Dequanter, Didier
    • 대한두개안면성형외과학회지
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    • 제19권2호
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    • pp.108-113
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    • 2018
  • Background: The aim of our retrospective study is to evaluate the management of isolated orbital floor fractures considering the clinical, functional and aesthetic results according to the surgical approach and the type of materials used. Methods: Retrospectively, clinical, radiological, surgical, and ophthalmological data from 79 patients were collected from January 2010 to December 2016. Furthermore, included patients were interrogated on functional and aesthetic satisfaction. Results: The main causes of trauma were physical aggression followed by accidents. The median time between trauma and surgery was 4 days. The most common surgical approaches were the subciliary and the transconjunctival ones. Alloplastic materials were used in 75 patients. In two patients, we used a combination of two grafts. Patients experienced minor immediate complications. On follow-ups, none of our patients suffered from ocular movement restrictions. Patients treated by subciliary approach had higher risk of retractile scaring compared to other surgical approaches. In our study, patients agreed to complete a questionnaire assessing functional and aesthetic outcomes with a high satisfaction score. No association between the implant material used and the results has been assessed. Conclusion: This study describes the results of orbital floor reconstructions. Despite a variety of materials used and surgical approaches performed, we believe that the transconjunctival approach is the most suitable option with a high satisfaction score.

Influence of the amount of tooth surface preparation on the shear bond strength of zirconia cantilever single-retainer resin-bonded fixed partial denture

  • Sillam, Charles-Ellie;Cetik, Sibel;Ha, Thai Hoang;Atash, Ramin
    • The Journal of Advanced Prosthodontics
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    • 제10권4호
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    • pp.286-290
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    • 2018
  • PURPOSE. Conventional resin-bonded fixed partial dentures (RBFPDs) are usually made with a two-retainer design. Unlike conventional RBFPDs, cantilever resin-bonded fixed partial dentures (Cantilever RBFPDs) are, for their part, made with a single-retainer design. The aim of this study was to compare the effect of tooth surface preparation on the bond strength of zirconia cantilever single-retainer RBFPDs. The objective is to evaluate the shear bond strength of these single-retainer RBFPDs bonded on 3 different amount of tooth surface preparation. MATERIALS AND METHODS. Thirty extracted bovine incisors were categorized to 3 groups (n=10), with different amounts of tooth surface preparations. Teeth were restored with single-retainer RBFPDs with different retainer surfaces: large retainer of $32mm^2$; medium retainer of $22mm^2$; no retainer and only a proximal connecting box of $12mm^2$. All RBFPDs were made of zirconia and were bonded using an adhesive system without adhesive capacity. Shear forces were applied to these restorations until debonding. RESULTS. Mean shear bond strength values for the groups I, II, and II were $2.39{\pm}0.53MPa$, $3.13{\pm}0.69MPa$, and $5.40{\pm}0.96MPa$, respectively. Statistical analyses were performed using a one-way ANOVA test with Bonferroni post-hoc test, at a significance level of 0.001. Failure modes were observed and showed a 100% adhesive fracture. CONCLUSION. It can be concluded that the preparation of large tooth surface preparation might be irrelevant. For zirconia single-retainer RBFPD, only the preparation of a proximal connecting box seems to be a reliable and minimally invasive approach. The differences are statistically significant.

The cultivation of wild food and medicinal plants for improving community livelihood: The case of the Buhozi site, DR Congo

  • Karhagomba, Innocent Balagizi;Adhama, Mirindi T.;Mushagalusa, Timothee B.;Nabino, Victor B.;Koh, Kwangoh;Kim, Hee Seon
    • Nutrition Research and Practice
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    • 제7권6호
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    • pp.510-518
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    • 2013
  • This study aims to demonstrate the effect of farming technology on introducing medicinal plants (MP) and wild food plants (WFP) into a traditional agricultural system within peri-urban zones. Field investigations and semi-structured focus group interviews conducted in the Buhozi community showed that 27 health and nutrition problems dominated in the community, and could be treated with 86 domestic plant species. The selected domestic MP and WFP species were collected in the broad neighboring areas of the Buhozi site, and introduced to the experimental field of beans and maize crops in Buhozi. Among the 86 plants introduced, 37 species are confirmed as having both medicinal and nutritional properties, 47 species with medicinal, and 2 species with nutritional properties. The field is arranged in a way that living hedges made from Tithonia diversifolia provide bio-fertilizers to the plants growing along the hedges. The harvest of farming crops does not disturb the MP or WFP, and vice-versa. After harvesting the integrated plants, the community could gain about 40 times higher income, than from harvesting farming crops only. This kind of field may be used throughout the year, to provide both natural medicines and foods. It may therefore contribute to increasing small-scale crop producers' livelihood, while promoting biodiversity conservation. This model needs to be deeply documented, for further pharmaceutical and nutritional use.

Active tendon control of suspension bridges

  • Preumont, Andre;Voltan, Matteo;Sangiovanni, Andrea;Mokrani, Bilal;Alaluf, David
    • Smart Structures and Systems
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    • 제18권1호
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    • pp.31-52
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    • 2016
  • The paper first reviews the theory of active tendon control with decentralized Integral Force Feedback (IFF) and collocated displacement actuator and force sensor; a formal proof of the formula giving the maximum achievable damping is provided for the first time. Next, the potential of the control strategy for the control of suspension bridges with active stay cables is evaluated on a numerical model of an existing footbridge; several configurations are investigated where the active cables connect the pylon to the deck or the deck to the catenary. The analysis confirms that it is possible to provide a set of targeted modes with a considerable amount of damping, reaching ${\xi}=15%$. Finally, the control strategy is demonstrated experimentally on a laboratory mock-up equipped with four control stay cables equipped with piezoelectric actuators. The experimental results confirm the excellent performance and robustness of the control system and the very good agreement with the predictions.