• Title/Summary/Keyword: versatility

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Versatility of Modified Nasolabial Flap in Oral and Maxillofacial Surgery

  • Mitra, Geeti Vajdi;Bajaj, Sarwpriya Sharma;Rajmohan, Sushmitha;Motiwale, Tejas
    • Archives of Craniofacial Surgery
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    • v.18 no.4
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    • pp.243-248
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    • 2017
  • Background: To evaluate the versatility and reach of modified nasolabial flap used in reconstruction of defects created in and around the oral cavity. Methods: A total number of 20 cases were selected. Out of which 13 were males and 7 females. The age of these patients ranged from 24-63 years. 29 modified nasolabial flaps were raised in twenty patients. Based on clinical and histopathological examination, out of 20 patients, 14 patients were diagnosed with oral submucous fibrosis, 3 with verrucous carcinoma, 1 with squamous papilloma, 1 with oro-antral fistula and 1 with traumatic loss of lower lip. Results: Minimum preoperative interincisal distance (IID) was 0 mm and maximum was 15 mm with mean of $6.00{\pm}4.76mm$ in patients with oral submucous fibrosis and 12 months postoperatively minimum IID was 16 mm and maximum was 41 mm with mean of $28.00{\pm}8.96mm$. In one case, dehiscence (3.4%) was noted on the anterior tip for which tip revision was done. Bulky appearance of the flap intraorally was observed in 2 cases (6.9%). Five (17.2%) among the 29 flaps had visible scar at the donor site postoperatively up to 3 months. Conclusion: Numerous reconstructive techniques have been employed in the reconstruction of small to intermediate sized defects of oral cavity. Modified nasolabial flap is a versatile flap which has robust vascularity and can be successfully used with minimal complications. It can be rotated intraorally to extend from the soft palate to the lip. Thus, it can be used efficiently to treat the small defects of the oral cavity as well as recreating lost lip structure.

A Study on Preferences and Utilities of Digital Signature Certificate Choice Factors Using Conjoint Analysis (컨조인트 분석을 이용한 인증서 선택요인 및 효용가치에 대한 연구)

  • Whanchul Kang
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.33 no.1
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    • pp.117-128
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    • 2023
  • Due to the full revision of the Digital Signature Act (enforcement on December 10, 2020), various certificates are being released and competing in the market. Under fierce competition, the certificate market share of large IT platform companies is increasing, and it is predicted that they will eventually monopolize the market. Therefore, identifying the consumer's certificate choice factors and understanding the difference in importance between the choice factors are essential elements for establishing a company's strategy for the certificate market and product positioning, and are key points in setting the government's certificate policy direction. In this study, consumers' certificate choice factors were extracted based on the details of preceding papers and surveys, and based on the extracted choice factors, 4 choice factors (reliability of issuer, program installation, certificate usage method(how to use), versatility(where to use)) were identified through a Delphi survey. As a result of conjoint analysis by conducting a consumer survey with selected choice factors, the reliability of the issuer was found to be the most important utility value. In order of importance, the certificate usage method(how to use), program installation, and versatility(where to use) appeared.

Development of Biosensors for Rapid Detection of Foodborne Pathogenic Bacteria using CRISPR/Cas (CRISPR/Cas 시스템 기술을 활용한 고위험성 식중독 세균 신속 검출을 위한 바이오센서 개발)

  • Seon Yeong Jo;Jong Pil Park
    • Journal of Food Hygiene and Safety
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    • v.38 no.5
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    • pp.279-286
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    • 2023
  • Rapid and accurate detection of pathogenic bacteria is crucial for various applications, including public health and food safety. However, existing bacteria detection techniques have several drawbacks as they are inconvenient and require time-consuming procedures and complex machinery. Recently, the precision and versatility of CRISPR/Cas system has been leveraged to design biosensors that offer a more efficient and accurate approach to bacterial detection compared to the existing techniques. Significant research has been focused on developing biosensors based on the CRISPR/Cas system which has shown promise in efficiently detecting pathogenic bacteria or virus. In this review, we present a biosensor based on the CRISPR/Cas system that has been specifically developed to overcome these limitations and detect different pathogenic bacteria effectively including Vibrio parahaemolyticus, Salmonella, E. coli O157:H7, and Listeria monocytogenes. This biosensor takes advantage of the CRISPR/Cas system's precision and versatility for more efficiently accurately detecting bacteria compared to the previous techniques. The biosensor has potential to enhance public health and ensure food safety as the biosensor's design can revolutionize method of detecting pathogenic bacteria. It provides a rapid and reliable method for identifying harmful bacteria and it can aid in early intervention and preventive measures, mitigating the risk of bacterial outbreaks and their associated consequences. Further research and development in this area will lead to development of even more advanced biosensors capable of detecting an even broader range of bacterial pathogens, thereby significantly benefiting various industries and helping in safeguard human health

Design of LTPS TFT Current Mode Multiplexer and MUX-based Logic Gates

  • Jeong, Ju-Young;Hong, Moon-Pyo
    • Journal of Information Display
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    • v.9 no.3
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    • pp.1-7
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    • 2008
  • With the aim of creating a high-quality display system with value-added functions, we designed a current mode multiplexer for LTPS TFT devices. The multiplexers had less than 1 volt logic swing, and speed improvement was evident compared with that of conventional CMOS architecture. We refined the multiplexer to achieve a more stable current steering operation. By using the versatility of the multiplexer, a new NAND/AND and NOR/OR logic gates were designed through the simple modification of signal connections. Two micron LTPS TFT parameters were used during the HSPICE simulation of the circuits.

Current Status of SOFC Materials and Processing Core Technology (고체산화물 연료전지 소재공정 요소기술 개발 현황)

  • Lee, Jong-Ho;Son, Jiwon;Kim, Heryong;Kim, Byong-Kook;Lee, Hae-Weon
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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    • pp.123.1-123.1
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    • 2010
  • The solid oxide fuel cell (SOFC) has attracted great deal of attention due to its high electrical efficiency, high waste-heat utilization, fuel flexibility, and application versatility. However, SOFC technology is still not matured enough to fulfill the practical requirements for commercialization. Therefore, all the research and development activities are mainly focused on a development of practically viable SOFCs with higher performance and better reliability. We were successful in fabricating high-performance anode-supported unit cells by employing hierarchically controlled multi-layered electrodes for both structural reliability and high performance. In addition, a novel composite sealing gasket made it possible to achieve excellent sealing integrity even with considerable surface irregularities in a multi-cell planar arrayed stack.

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Further Specialization of Clustered VLIW Processors: A MAP Decoder for Software Defined Radio

  • Ituero, Pablo;Lopez-Vallejo, Marisa
    • ETRI Journal
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    • v.30 no.1
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    • pp.113-128
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    • 2008
  • Turbo codes are extensively used in current communications standards and have a promising outlook for future generations. The advantages of software defined radio, especially dynamic reconfiguration, make it very attractive in this multi-standard scenario. However, the complex and power consuming implementation of the maximum a posteriori (MAP) algorithm, employed by turbo decoders, sets hurdles to this goal. This work introduces an ASIP architecture for the MAP algorithm, based on a dual-clustered VLIW processor. It displays the good performance of application specific designs along with the versatility of processors, which makes it compliant with leading edge standards. The machine deals with multi-operand instructions in an innovative way, the fetching and assertion of data is serialized and the addressing is automatized and transparent for the programmer. The performance-area trade-off of the proposed architecture achieves a throughput of 8 cycles per symbol with very low power dissipation.

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Application of DCOC for Minimum Cost Design of Reinforced Concrete T-Beams

  • 신연근;박중열;조홍동;한상훈
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2000.04b
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    • pp.379-388
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    • 2000
  • This paper describes the application of discretized continuum-type optimality criteria (DCOC) for design of the reinforced concrete T-beams. The cost of construction as objective function which includes the costs of concrete, reinforced steel and formwork is minimized. The design constraints include limits on the maximum deflection in a given span on bending and shear strengths and optimality criteria is given based on the well blown Kuhn-Tucker necessary conditions, followed by an iterative procedure for designs when the design variables are the depth and the steel ratio. The versatility of the DCOC technique has been demonstrated by considering numerical examples which have one and five span RC T-beams.

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Advanced Finite Element Analysis for Linear Viscoelastic Problems of a Hereditary-Type Constitutive Law (유전적분형 선형 점탄성문제의 유한요소법에 의한 효율적 해석)

  • 심우진;이성희
    • Computational Structural Engineering
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    • v.6 no.2
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    • pp.103-114
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    • 1993
  • An advanced time-domain finite element formulation is presented for the displacement and stress analysis of isotropic, linear viscoelastic problems of a hereditary-type constitutive law. The semidiscrete finite element method with linear time-stepping scheme and an elastic-viscoelastic correspondence principle are used in the theoretical development. An efficient treatment of hereditary integral is introduced to improve the numerical accuracy, to reduce the computation time, and to avoid the use of large memory storage. Two-dimensional numerical examples of plane strain and plane stress are solved under the assumption on the material property of being elastic in dilatation and like three-element Voigt model in distorsion, and compared with the analytical solutions and the past numerical results to show the versatility and efficiency of the proposed method.

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Truncated hierarchical B-splines in isogeometric analysis of thin shell structures

  • Atri, H.R.;Shojaee, S.
    • Steel and Composite Structures
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    • v.26 no.2
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    • pp.171-182
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    • 2018
  • This paper presents an isogeometric discretization of Kirchhoff-Love thin shells using truncated hierarchical B-splines (THB-splines). It is demonstrated that the underlying basis functions are ideally appropriate for adaptive refinement of the so-called thin shell structures in the framework of isogeometric analysis. The proposed approach provides sufficient flexibility for refining basis functions independent of their order. The main advantage of local THB-spline evaluation is that it provides higher degree analysis on tight meshes of arbitrary geometry which makes it well suited for discretizing the Kirchhoff-Love shell formulation. Numerical results show the versatility and high accuracy of the present method. This study is a part of the efforts by the authors to bridge the gap between CAD and CAE.

Synthesis of complex nanoparticles using bioceramic silica (바이오 세라믹 실리카를 이용한 복합 나노입자 구조체의 합성)

  • Yoon, Seokyoung;Lee, Jung Heon
    • Ceramist
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    • v.21 no.3
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    • pp.283-292
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    • 2018
  • Here, we introduce various type of inorganic nanostructure synthesized with functional nanoparticles and silica. From two decades ago, functional inorganic nanoparticles have been synthesized and highlighted, now we moved to next level of wet-chemical synthesis. By integrating functional nanoparticles with silica, we were able to synthesize multi-functional nanostructure, which expand the applications of nanoparticles to catalyst, drug carrier, sensors. In this context, silica has been spotlighted due to its versatility. Silica has highly biocompatible, relatively transparent and stable under harsh conditions. Thus it can be used as good supporter to synthesize complex multi-functional nanostructure when mixed with other functional nanoparticles. A various shape of complex nanostructures have been synthesized including core-shell type, yolk-shell type and janus type etc. In this paper, we have described the purposes of synthesizing silica noncomplex and various case studies for biomedical applications and self-assembly.