• Title/Summary/Keyword: PSSC

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Comparison of Reliability of PSSC Girder Bridge for Different Limit States (PSSC 거더 교량의 한계상태별 신뢰도 비교)

  • Hwang, Chul-Sung;Paik, In-Yeol
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.11 no.1
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    • pp.171-180
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    • 2007
  • Reliability analysis of prestressed steel and concrete(PSSC) girders is conducted for deflection, stress and moment strength limit state. PSSC girder has strong advantages in terms of construction cost and vertical clearance for the span length of over 40 meters. In this paper, example PSSC girders with different span lengths, section dimensions and design stress levels are designed and analyzed to calculate the midspan deflection, stress and the section moment strength. Deflection limit state, stress limit state and strength limit state functions are assumed and the reliability indexes are obtained by Monte-Carlo simulation and Rackwitz-Fiessler procedure. The results show that the reliability of PSSC girder for deflection limit state is appropriately higher than the stress limit state and the reliability for moment strength is significantly conservative.

Analysis of Prestress Effect and Reliability of PSSC Composite Girder Bridge (PSSC 합성거더 교량의 프리스트레스 효과 및 신뢰도 해석)

  • Hwang, Chul-Sung;Paik, In-Yeol
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.12 no.6
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    • pp.214-224
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    • 2008
  • Member force, strain and stress distribution of a section are obtained for optimized standard 25m~45m PSSC composite bridge subjected to dead and live load in order to interpret the effect of prestressing and deformation of tendon. The stress and strain distribution and moment capacity are obtained for both noncomposite and composite section and for allowable stress limit state, yield limit state and strength limit state. Reliability analysis is conducted after assuming limit states for stress and flexural strength. The reliability index for standard PSSC composite bridge which is designed to satisfy the allowable stress for flexural strength are higher than 3.5 which is required reliability indexes on American code for LRFD. Reliability of PSSC girder which is designed based on allowable stress of bridge design code is high for flexural strength.

Analysis of Nonlinear Behavior and Reliability of PSSC Composite Girder Bridge (PSSC 합성거더 교량의 비선형 거동 분석 및 신뢰도 해석)

  • Hwang, Chul-Sung;Paik, In-Yeol
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.12 no.1
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    • pp.158-166
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    • 2008
  • Member force, strain and stress distribution of a section are obtained for prestressed steel and concrete(PSSC) composite bridge subjected to dead and live load in order to interpret the effect of prestressing and deformation of tendon. The stress and strain distribution and moment capacity are obtained for both noncomposite and composite section and for allowable stress limit state, yield limit state and strength limit state. Reliability analysis is conducted after assuming limit states for deflection, stress and flexural strength. Comparing that the reliability index for stress is near 0 for example section which is designed to satisfy the allowable stress exactly, the reliability indexes for deflection and flexural strength are high. Reliability of PSSC girder which is designed based on allowable stress of bridge design code is high for deflection and flexural strength.

A Constitutional Analysis of Uzbekistan by Comparing PSSC with QSCC (PSSC와 QSCC II의 비교분석을 통한 우즈베키스탄인들의 사상체질 분석)

  • Lee, In Jung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2010.11a
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    • pp.687-690
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    • 2010
  • 본 논문에서는 우즈베케스탄 사람을 대상으로 한국의학에서 사용되고 있는 사상체질진단법을 적용하여 실험하였으며, 먼저 설문조사방법으로 체질을 진단하는 QSCC II(Questionnaire for Sasang Constitution Classification II)라는 진단기구와 음성분석으로 체질을 진단하는 PSSC(Phonetic System of Sasang Constitution)를 사용하여 체질을 진단한 후, 한국인과 마찬가지로 우즈베키스탄인들에게도 적용이 가능한지를 살펴보았다. 실험결과 우즈베키스탄인도 사상체질로 분류됨을 보았다.

Public Shared Service Centers for Collaborative Government: A Case Study of the United States and the United Kingdom (협업정부 구현을 위한 행정공유서비스센터 도입방안 연구 - 정부 공유서비스센터 선진국 사례연구를 기반으로 -)

  • Hong, Kil Pyo;Chung, Choong Sik;Kim, Pan Suk
    • Informatization Policy
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    • v.21 no.3
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    • pp.33-55
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    • 2014
  • Public Shared Service Centers (PSSC) consolidate functions such as human resources, information technology, financial management or accounting into one office to serve an organization. A prominent example from the United States is the Federal Information Technology Shared Services Strategy. It supports mission, administrative, and infrastructure-related IT functions through providing organizations in the Executive Branch of the Federal Government (Federal Agencies) with policy guidance on the full range and lifecycle of intra- and inter-agency information technology (IT) shared services. This study looks at the Federal Information Technology Shared Services Strategy in order to draw lessons for fostering collaborative government through the use of PSSC. It finds the following factors are critical for success when implementing IT shared services: (1) agency leadership must be solidly behind their IT shared service plan, or the needed changes will not happen at the business unit, program, or system levels; (2) there must be a move away from internally-centered, program-specific thinking, and a move toward a paradigm of consuming and providing IT shared services with multiple groups whenever possible; and (3) successfully managing "loss of control" issues is central, and optimizing business processes is essential to move from stove-piped workflows to processes that work across the agency enterprise and beyond. Therefore, the study suggests that a Korean model of PSSC implementation be introduced, and that good IT Governance is a crucial component of PSSC strategies.

A Study on the Characteristics of the Korean Adult Male Sound According to Sasang Constitution Using PSCC with a Sentence (사상체질음성분석기(四象體質音聲分析機)(PSSC)를 통한 한국인 성인남성(成人男性)의 체질별(體質別) 음향특성연구(音響特性硏究) - 단문(短文)을 중심으로 -)

  • Choi, Jae-Wan;Song, Hak-Soo;Han, Dong-Youn;Cho, Sung-Eon;Wang, Hyang-Lan;Jeon, Jong-Weon;Kim, Dal-Rae;Yoo, Jun-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.18 no.3
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    • pp.64-74
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    • 2006
  • 1. Objectives and Methods A Study on the Characteristics of the Korean Adult Male Sound according to Sasang Constitution using PSSC with a Sentence. Sasang Constitutional Medicine(SCM) is the one of the traditional Korean Medicine. It classifies people into four categories like Taeyangin, Soyangin, Taeumin and Soeumin. The rule to classify is Appearance and Body Shape, Facial Appearance and Speech, Character and Talents and Diseases and Medications. This study was done to investigate the relationships between Voice and Sound parameters using PSSC(Phonetic System of Sasang Constitution) in a sentence. Experimental Participants were 195 Korean adult males including 1 Taeyangin, 37 Soyangin, 105 Taeumin and 52 Soeumin. Sasang Constitutional specialist used PSSC and Korean Medical Diagnosis to classify participants into four constitution. 2. Results In Pitch segment, Soyangin's Center freq.(4) was significantly high compared with Taeyangin and Taeumin groups. Soyangin's and Soeumin's Center freq.(6) was significantly high compared with Taeyangin and Taeumin groups. In APQ segment and Octave segment, there were no significant differences among four groups. In Shimmer segment, Taeumin's F Shimmer(1) and F Shimmer(2) were significantly high compared with Taeyangin and Soyangin groups. In Energy segment, Taeyangin's 2k-4k total sum, 2k-4k dev., C dev., C# dev. and D S.D. were significantly high compared with other groups. In Recording time segment, there was no significant difference among four groups. More Taeyangin cases and the other parameters are needed to determine constitution using PSSC and to make PSSC effective. 3. Conclusions From above result, there is the possibility of efficiency standard guide for constitution diagnosis by analyzation og voice.

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A Study n the 529 Children as by Sasang Constitution Analysed with PSSC-2004 (PSSC-2004를 이용한 소아 529명의 체질진단에 관한 연구)

  • Bae, Hyo-Sang;Cho, Sung-Kyoo
    • Journal of Sasang Constitutional Medicine
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    • v.18 no.2
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    • pp.50-54
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    • 2006
  • 1. Objectives The purpose of this study was to investigate the spread of Sasang constitution in $4{\sim}6$ years old. 2. Methods The voices of 529 children in $4{\sim}6$ years old were analyzed with PSSC-2004. and the result of the spread of Sasang constitution was examined. 3. Results (1) Group of total was composed with 276 boys and 253 girls. In total group, it was composed with 269 Soeumins, 32 Soyangins, and 228 Taeumins. (2) The spread of Sasang constitution according to age was composed with 72 Soeumins, 5 Soyangins, and 59 Taeumins in 4 years old. It was composed with 154 Soeumins, 17 Soyangins, and 131 Taeumins, In 5 years old. It was composed W with 43 Soeumins, 10 Soyangins, and 38 Taeumins, In 6 years old. 4. Conclusions From above result, wε observed the spread of Sasang constitution in $4{\sim}6$ years old. there is a necessary to study the spread of Sasang constitution specifically according to the age at which one's voice changes, and to conduct follow-up survey of the a age at the same child's voice changes.

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A Study on the Children's Characteristics by Sasang Constitution Analysed with PSSC-2004 (사상체질음성분석기를 이용한 사상체질별 소아 특성 연구)

  • Seo, Young-Min;Kim, Jang-Hyun;Choi, Eun-Young
    • The Journal of Pediatrics of Korean Medicine
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    • v.20 no.2
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    • pp.77-92
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    • 2006
  • Objective : The purpose of this study was to distribute children by Sasang constitution through voice analysis, and to investigate the difference of physical and physiological characteristics in constitutions. Material and Methods : The subjects were 380 children aged between 5 and 6 who had been attending kindergartens. In April 2006, children were examined to make a diagnosis of Sasangin by PSSC-2004. Their parents responded the questionnaire on the children's characterist as eating habit, digestion, defecation, urination and perspiration. Results : Sasang constitution composed of 55.0% Soeumin, 1.8% Soyangin and 43.2% were Taeumin, and there were no significant physical and physiological differences in those groups. Conclusion : In this study, we tried to figure out some physical and physiological characteristics differences in Sasang constitution by using PSSC-2004. Statistically, however, there were no remarkable differences and we needed more specific studies.

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A Study on the Sasang Constitutional Symptom of Taeumin by Voice Characteristics (음향특성에 따른 태음인 체질병증(體質病證) 연구(硏究))

  • Kim, Dal-Rae
    • Journal of Sasang Constitutional Medicine
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    • v.19 no.1
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    • pp.90-97
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    • 2007
  • 1. Objectives and Methods This study was done to investigate the relationships of Sound parameters between Liver Heat Symptom and Esophagus Symptom of Taeumin using PSSC(Phonetic System of Sasang Constitution) in a sentence. Experimental Participants were 20 Korean adult males including, each 10 Liver Heat Symptom and Esophagus Symptom of Taeumin. 2. Results In Pitch segment, APQ segment and Shimmer segment, there were no significant differences between Liver Heat Symptom and Esophagus Symptom of Taeumin. In Octave segment, there were significant differences in Octave 1, Octave 3, Octave 4, Octave 6 of Liver Heat Symptom of Taeumin were significantly high compared with Esophagus Symptom of Taeumin. In Energy segment, FreQ Domain Total Sum / cnt(0), 0k-2k Total Sum,0k-2k sum dev., 2k-4k Total Sum, 2k-4k sum dev., A# Tot E, B__TOT_E, C__TOT_E, C# Tot E, D__TOT_E, A sum dev., A# sum dev., B sum dev., C sum dev., C# sum dev., Dsum dev., D# sum dev., E sum dev., F sum dev., F# sum dev., G sum dev., G# sum dev. of Liver Heat Symptom of Taeumin were significantly high compared with Esophagus Symptom of Taeumin. In Voice Recording time segment, Total Voice Recording Time, Voice Recording Time, Divide By Time3, Divide By Energy10, Total Unit, Max Unit Position, U_0 TO 3 of Liver Heat Symptom of Taeumin were significantly high compared with Esophagus Symptom of Taeumin. 3. Conclusion From above result, there is the postbility of efficiency quide constitutional sx. of Taeumin by Voice characteristics. More Soeumin, Soyangin and Taeyangin Symptoms are needed to determine Sasang Constitution using PSSC and to make PSSC effective.

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Sound Characteristics of Sasang Constitutional Type Using PSSC-2004 in the Korean Children (사상체질음성분석기(四象體質音聲分析機)(PSSC-2004)를 이용한 한국인 소아의 체질별(體質別) 음향특성(音響特性))

  • Kim, Hyuk;Yang, Sang-Muk;Shim, Gyu-Heoun;Kim, Dal-Rae;Yoo, Jun-Sang
    • Journal of Sasang Constitutional Medicine
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    • v.18 no.2
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    • pp.55-67
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    • 2006
  • 1. Objective & Method The purpose of this study was to objectify the diagnosis of Sasang constitution. 163 children's voices were analyzed with 74 factors using PSSC-2004. 2. Results (1) In male children group, Taeumin's APQ4 was significantly low compared with the others. (2) In male children group, Taeumin's octave 5 & octave 6 were significantly low compared with the others. It was significant distinction between Taeumin and Soeumin at the result of post hoc. (3) In male children group, Taeumin's Time Domain Total Sum / Time Domain Count & Frequency Domain Total Sum / count(0) were significantly low compared with the others. It was significant distinction between Taeumin and Soeumin at the result of post hoc. (4) In male children group, Taeumin's 0k-2k total sum & 2k-4k total sum were significantly low compared with the others. It was significant for distinction between Taeumin and Soeumin at the result of post hoc. (5) In male children group, Taeumin's 2k-4k deviation was significantly low compared with the others. It was significant distinction between Taeumin and Soeumin at the result of post hoc. (6) In male children group, Taeumin's D# Total Energy & F# Total Energy were significantly low compared with the others. It was significant distinction between Taeumin and Soeumin at the result of post hoc. (7) In male children group, Taeumin's D# deviation & F# deviation were significantly low compared with the others. It was significant distinction between Taeumin and Soeumin at the result of post hoc. (8) In female children group, Soyangin's center frequency (7) was significantly high compared with the others. It was significant distinction between Taeumin and Soyangin at the result of post hoc. 3. Coclusion With these results, we got some information for standardization of the clinical diagnosis guideline of Sasang constitutional type classification using PSSC-2004 in the Korean children

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