• Title/Summary/Keyword: Evaluation procedures

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A Comparative Study on the Analytical Methods for Structural Behavior of Cement Concrete Pavement System (시멘트 콘크리트 포장구조계의 구조거동의 해석방법에 관한 비교연구)

  • Lee, Seong Won;Kim, Moon Kyum;Hwang, Hak Joo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.9 no.4
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    • pp.73-82
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    • 1989
  • Various analytical procedures for the structural behavior of concrete pavement system are studied in order to identify a suitable method which will be incorperated in the pavement management system using nondestructive test and mechanistic evaluation. A typical four layered system is adopted and analyzed using 3 dimensional finite elements, plane strain elements, plates with Winkler foundation, and plates with Burmister foundation. Numerical analysis results of various structural analysis procedures are compared and analized based on displacements and stresses. It is concluded, after analysis of merits and demetits of the procedures, that Burmister foundation analysis procedure is the most sui-table procedure for implementation for the analysis of stresses and displacements because of its accuracy and simplicity.

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Surgery of Benign Laryngeal Mucosal Lesions (후두 양성점막 병변의 수술적 치료)

  • Jin, Sung Min
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.24 no.2
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    • pp.83-87
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    • 2013
  • The term "phonosurgery," coined in the early 1960s, refers to surgical procedures that maintain, restore, or enhance the human voice. Phonosurgery includes phonomicrosurgery (endoscopic microsurgery of the vocal folds), laryngoplastic phonosurgery (open-neck surgery that restructures the cartilaginous framework of the larynx and the soft tissues), laryngeal injection (injection of medications as well as synthetic and organic biologic substances), and reinnervation of the larynx. Phonomicrosurgery is a means of maximally preserving the layered microstructure of the vocal fold, that is, the epithelium and lamina propria. The purpose of the surgery is usually to improve the vibratory characteristics of the layered microstructure of the vocal folds. Phonomicrosurgery has developed from convergence of microlaryngoscopic surgical technique theory and the mucosal wave theory of laryngeal sound production. Improvements in technology (i.e., laryngoscopes, handled instruments, and lasers), which in part arise from developments in more frequently performed minimally invasive surgical procedures, will probably facilitate the next generation of procedural innovations. The best methods of optimizing phonosurgical outcomes include making an accurate diagnosis, completing a comprehensive voice evaluation, providing sufficient preoperative therapy, carefully selecting patients to undergo phonomicrosurgical procedures, and requiring sufficient postoperative rest and therapy. Phonomicrosurgery will continue to evolve as a result of the interdependent collaboration of surgeons with voice scientists, speech pathologist, and other voice professionals.

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Review on Fukuda Stepping Test, Its Procedures and Criteria for the Evaluation of the Postural Balance Control (자세음양 균형검사로서 Fukuda Stepping Test에 대한 문헌적 고찰)

  • Bae, Jin Yong;Lee, Jaemin;Lee, Gyeong Ran;Lee, Young Jun;Yin, Chang Shik
    • Journal of TMJ Balancing Medicine
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    • v.4 no.1
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    • pp.5-7
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    • 2014
  • Objectives: Neurological examination on balance function is widely applied in clinical practice. Balance function may be clinically relevant to an assessment of yinyang balance in such therapies as temporomandibular joint balancing medicine. Fukuda stepping test is a relatively not-well-known method of balance function test. This study reviewed the procedures and criteria of Fukuda stepping test. Method: Recent articles on Fukuda stepping test were searched in public database (Pubmed, Proquest) and reviewed for its procedures and clinical implications. Results: Fukuda stepping test adopts 50 steps or 100 steps with subsequent assessment of the deviation or displacement of the subject. It may not be reliable during acute phase. Conclusion: Fukuda stepping test may be utilized and be further developed to assess balance function in the neurological management of functions.

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Comparison of Several Procedures for the Preparation of Synaptosomal Plasma Membrane Vesicles

  • Yun, Il;Kim, Young-Shin;Yu, Seong-Ho;Chung, In-Kyo;Baik, Seung-Wan;Cho, Goon-Jae;Chung, Yong-Za;Kim, Seok-Hwan;Kang, Jung-Sook;Kim, In-Se
    • Archives of Pharmacal Research
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    • v.13 no.4
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    • pp.325-329
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    • 1990
  • Synaptosomal plasma membrane vesicles (SPMV) were isolated from fresh bovine cerebral cortex by several well-known procedures, and the best procedures was selected by enzymatic and morphological standards. The SPMV isolated by the modified procedure of Smith and Loh showed the highest purity. The specific activities of Na, K-ATPase, acetylcholinesterase and 5'-nucleotidase were about 5, 6-fold, 2, 5-fold and 3, 3-fold, respectively, enriched in the plasma membrane fraction as compared to those of the crude homogenate. Electron microscpic examination also showed that the membranes were in vesicular form.

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Development of Vehicle Evaluation System for Pedestrian Protection (보행자 보호를 위한 차량평가시스템 개발)

  • Yong, Boo-Joong;Cho, Hyun-Deog;Lee, Jae-Wan
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.5 no.4
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    • pp.53-58
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    • 2006
  • IHRA Pedestrian Working Group has investigated and analyzed the current status of pedestrian-vehicle accidents in IHRA member countries. According to the results, European countries and Japan are working on new regulations to improve passive pedestrian protection on passenger cars significantly. Although IHRA proposed pedestrian test procedures, which may provide a basis of technical regulations in the future, further research and development are necessary to refine the procedures. In order to prepare and satisfy the pedestrian protection requirements, domestic passenger vehicles also should be tested. Among various safety-related studies based on accident data analysis, dealing with pedestrian head injury would be considered one of the keen interests. In this study, the pedestrian headform impact test system is developed. The developed system will be useful to carry out validation study of the test procedures through actual tests using sample vehicles, and to explore the car feasibility level prior to the use of the test methods in legislation.

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A Tentative Methodology for Quality Control of Trackbed Fills Using Field and Laboratory P-Wave Measurements

  • Park, Chul-Soo;Park, In-Beom;Kim, Eun-Jung;Mok, Young-Jin
    • International Journal of Railway
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    • v.1 no.2
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    • pp.64-71
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    • 2008
  • The quality of track-bed fills of railways has been controlled by field measurements of density $({\gamma}_d)$ and the results of plate-load tests. The control measures are compatible with the design procedures whose design parameter is $k_{30}$ for both ordinary-speed railways and high-speed railways. However, one of fatal flaws of the design procedures that there are no simple laboratory measurement procedures for the design parameters ($k_{30}$ or, $E_{v2}$ and $E_{v2}/E_{v1}$) in design stage. A new quality control procedure, in parallel with the advent of the new design procedure, is being proposed. This procedure is based upon P-wave velocity involving consistently the evaluation of design parameters in design stage and the field measurements during construction. The Key concept of the procedure is that the target value for field compaction control is the P-wave velocity determined at OMC using modified compaction test, and direct-arrival method is used for the field measurements during construction. The procedure was verified at a test site and the p-wave velocity turned out to be an excellent control measure. The specifications for the control also include field compaction water content of OMC${\pm}$2% as well as the p-wave velocity.

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Development of RBI Procedures and Implementation of a Software Based on API Code (II) - Semi-Quantitative Approach (API 기준에 근거한 RBI 절차 개발 및 소프트웨어의 구현 (II) -준정량적 접근법-)

  • Song, Jung-Soo;Shim, Sang-Hoon;Kwon, Jung-Rock;Yoon, Kee-Bong
    • Journal of the Korean Society of Safety
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    • v.17 no.4
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    • pp.110-118
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    • 2002
  • During the last ten years, the need has been increase for reducing maintenance cost for aged equipments are ensuring safety, efficiency and profitability of petrochemical and refinery plants. American Petroleum institute(API) developed a code, API 581 for proposing standard procedures of risk based inspection. Even though the API 581 code covers general RBI procedures, there must be some limitations. In this study, a semi-quantitative assessment algorithm for RBI based on the API 581 code was reconstructed for developing an RBI software. The user-friendly realRBI software is developed with a module for evaluation semi-quantitative risk category using the potential consequence factor and the likelihood factor. Also, inspection planning module for inspection time and inspection method for equipments are included.

Accelerated aging test procedures for SRAM PUFs (SRAM PUF 가속 노화 시험 절차 수립)

  • Moon-Seok Kim;Seung-Bae Jeon;Jun-Young Park
    • Convergence Security Journal
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    • v.24 no.3
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    • pp.59-65
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    • 2024
  • This research proposes an accelerated aging test procedure for Static Random Access Memory Physically Unclonable Functions (SRAM PUFs). PUFs utilize semiconductor process variations to serve as a hardware security feature, akin to semiconductor device fingerprints. Thus, the proposed accelerated aging test simulates a semiconductor's 10-year lifecycle, enabling the prediction of PUF characteristics after a decade of use, which is crucial for verifying the safety and stability of SRAM PUFs. This research introduces test procedures that simulate 10 years of aging in approximately 9 days by setting temperature and voltage higher than operational environments. These procedures allow for the quantitative evaluation of SRAM PUF characteristics. This research is expected to contribute to the advancement of design and maintenance testing techniques for systems based on SRAM PUFs.

A Study on Improvement Direction of G-SEED for Existing Buildings (기존 건축물의 녹색건축인증 개선방향에 대한 연구)

  • Hyun, Eun-Mi;Lee, Jae-Eun;An, Kwang-Ho
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.5
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    • pp.59-67
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    • 2018
  • G-SEED's evaluation of existing buildings is an important point because the energy consumption and CO2 emissions of existing buildings are continuously increasing due to the aging of buildings over time. However, as G-SEED certification is concentrated on new buildings and the standards are not yet available, we will make improvements to evaluate the existing buildings of G-SEED. In order to improve G-SEED for EB, two research procedures were carried out. First, LEED EBOM and LEED for NC compare and analyze evaluation items and methods, and LEED EBOM focuses on evaluation of existing buildings. Second, we analyzed the certification evaluation contents of eight domestic LEED EBOM accredited buildings and obtained items that can be applied or need to be applied when revising G-SEED for EB. LEED EBOM is focused on improving the performance and utilization of data that track and manage the energy and environmental effects of building operations. As a result of the case analysis, the evaluation of G-SEED for EB requires quantitative evaluation items such as environmental management of buildings, energy performance status of building, improvement plan and improvement of performance according to tracking value. Although G-SEED for EB is not structured yet and there are few cases of certification, it is expected that quantitative evaluation of existing buildings will be made through continuous research.

Discussions on Auditory-Perceptual Evaluation Performed in Patients With Voice Disorders (음성장애 환자에서 시행되는 청지각적 평가에 대한 논의)

  • Lee, Seung Jin
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.32 no.3
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    • pp.109-117
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    • 2021
  • The auditory-perceptual evaluation of speech-language pathologists (SLP) in patients with voice disorders is often regarded as a touchstone in the multi-dimensional voice evaluation procedures and provides important information not available in other assessment modalities. Therefore, it is necessary for the SLPs to conduct a comprehensive and in-depth evaluation of not only voice but also the overall speech production mechanism, and they often encounter various difficulties in the evaluation process. In addition, SLPs should strive to avoid bias during the evaluation process and to maintain a wide and constant spectrum of severity for each parameter of voice quality. Lastly, it is very important for the SLPs to perform a team approach by documenting and delivering important information pertaining to auditory-perceptual characteristics in an appropriate and efficient way through close communication with the laryngologists.