53,361 research outputs found
High Corruption Income in Ming and Qing China
Full text linkWe develop an economic model that explains historical data on government corruption in Ming and Qing China. In our model, officials extensive powers result in corrupt income matching lands share in output. We estimate corrupt income to be between 14 to 22 times official income resulting in about 22% of agricultural output accruing to 0.4% of the population. The results suggest that eliminating corruption through salary reform was possible in early Ming but impossible by mid-Qing rule. Land reform may also be ineffective because officials could extract the same rents regardless of ownership. High officials incomes and the resulting inequality may have also created distortions and barriers to change that could have contributed to Chinas stagnation over the five centuries 1400-1900s.Corruption, China
The tale of Lady Tan: negotiating place between Central and local in Song-Yuan-Ming China
Full text linkThis paper explores the story of Lady Tan across genres from biographical record to temple inscription and marvellous tale, highlighting different representations of ‘the local’ in these stories: the loss of local belonging for some, inscribing the morals of a local community for others. Focusing on this tale, this essay argues that locality and belonging were contested constructs, especially during the Song-Yuan-Ming transitional period. Ex-ploring how literati understood themselves in relation to their localities contributes to our understanding of literati identities and the meaning of ‘the local’, in a period with ‘weak central government’, or as a repeating pattern of centralisation and localisation. It reveals the complexities in-volved in giving meaning to locality and negotiating belonging. In Ji'an prefecture, the centralising policies of the Hongwu and Yongle emperors were felt locally and affected how literati positioned themselves between central government and local community. This focus on literati writings from a single prefecture suggests that a close reading of the negotiations that form part of constructing locality and belonging in Ji'an can reveal the potential for a complex interplay between central government and local communities throughout China
Comparison of Word Intelligibility in Spoken and Sung Phrases
Full text linkTwenty listeners were exposed to spoken and sung passages in English produced by three trained vocalists. Passages included representative words extracted from a large database of vocal lyrics, including both popular and classical repertoires. Target words were set within spoken or sung carrier phrases. Sung carrier phrases were selected from classical vocal melodies. Roughly a quarter of all words sung by an unaccompanied soloist were misheard. Sung passages showed a seven-fold decrease in intelligibility compared with their spoken counterparts. The perceptual mistakes occurring with vowels replicate previous studies showing the centralization of vowels. Significant confusions are also evident for consonants, especially voiced stops and nasals
New types of plasmonic nanoparticles: Optical field enhancement in square and elliptic core-shell nanocylinder pair
No full text
Controlling the polarization dependence of dual-channel directional couplers formed by silicon-on-insulator slot waveguides
No full textSung-Je Seo
No full text학위논문(석사)--아주대학교 산업대학원 :기계공학과,2014. 8현재까지 플랜트 시스템의 유량을 제어하기 위한 방법으로 오리피스, 제어밸브 등이 일반적으로 사용되어지고 있으며, 압력용기에 펌프를 이용하여 냉각수를 공급하는 시스템의 최대 공급유량을 제한하기 위해서는 유량제한 오리피스, Cavitating Venturi가 사용되어진다.
본 논문에서는 시스템의 과냉 방지를 위해 최대 공급유량을 제한하는 Cavitating Venturi를 CFD를 이용하여 경계조건 및 모델 변경에 따른 분석결과를 통해 Cavitating Venturi의 설계에 미치는 영향을 검토하였다.
CFD 해석결과, Cavitating Venturi의 노즐부에서 운전유체의 포화증기압 까지 감소하고, 노즐부 측면에서 캐비테이션이 일부 발생하였으며, 노즐 후단 확관부에서 재순환으로 인한 캐비테이션이 부분적으로 발생함을 확인하였다.
본 논문에서 Cavitating Venturi 입구/출구 압력, 유체온도, 노즐 길이 및 내경 변경에 따라 기포 체적평균분율 및 질량 유량의 변화하는 경향을 분석하였다.목 차(List of Contents)
Ⅰ. 서 론 1
1. 연구 배경
2. 연구 목적
Ⅱ. 이론적 배경 및 수치해석 방법
1. Cavitation
2. 혼상류 모델 이론
3. Cavitation 모델
Ⅲ. CFD 모델링 및 경계조건
1. Cavitating Venturi
2. Cavitation 모델 Validation
Ⅳ. 결과 및 분석
1. Cavitating Venturi 해석 결과
2. Cavitating Venturi 분석
V. 결론
VI. 참고 문헌Maste
The Reign of Constitutional Positivism: Revolution Reconceived in the New Constitutional Age
No full textKuo, Ming-Sung. (2023). The Reign of Constitutional Positivism: Revolution Reconceived in the New Constitutional Age. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/254798
Nanofluidic Refractive-Index Sensors Formed by Nanocavity Resonators in Metals without Plasmons
No full textNanocavity resonators in metals acting as nanofluidic refractive-index sensors were analyzed theoretically. With the illumination of transverse electric polarized light, the proposed refractive index sensor structure acts as a pure electromagnetic resonator without the excitation of surface plasmons. The reflected signal from the nanocavity resonators can be very sensitive to the refractive index of the fluids inside the nanocavities due to the enhancement of the electric field of the resonant mode inside the cavities. Such a sensor configuration can be a useful tool for probing the refractive index change of the fluid inside the nanocavities using the spectral, angular or intensity interrogation schemes. The wavelength sensitivity of 430 nm/RIU, angular sensitivity of 200–1,000 deg/RIU and intensity sensitivity of 25.5 RIU−1 can be achieved in the proposed sensor configuration
- …
