1,723,192 research outputs found
Gardens, Chinese: Shizi Lin Yuan Garden, Suzhou, China [005]
No full textPhotograph of Shizi Lin Yuan Garden, Suzhou, ChinaShizi Lin Yuan Garden, Suzhou, China
Gardens, Chinese: Shizi Lin Yuan Garden, Suzhou, China [011]
No full textPhotograph of people on stone boat, Shizi Lin Yuan Garden, Suzhou, ChinaStone boat, Shizi Lin Yuan Garden, Suzhou, China
Gardens, Chinese: Shizi Lin Yuan Garden, Suzhou, China [017]
No full textPhotograph of corner of garden wall (with six windows), possibly at Shizi Lin Yuan Garden, Suzhou, ChinaWall with windows, possibly at Shizi Lin Yuan Garden, Suzhou, China. 32-L
Gardens, Chinese: Shizi Lin Yuan Garden, Suzhou, China [023]
No full textPhotograph of magnolia tree and wall with round opening, probably in Shizi Lin Yuan Garden, Suzhou, ChinaMagnolia tree and moon gate, probably in Shizi Lin Yuan Garden, Suzhou, China
Gardens, Chinese: Shizi Lin Yuan Garden, Suzhou, China [020]
No full textPhotograph of magnolia tree and wall with round opening, probably in Shizi Lin Yuan Garden, Suzhou, ChinaMagnolia tree and moon gate, probably in Shizi Lin Yuan Garden, Suzhou, China
Economic Dispatch of Lin-Yuan Plant Cogeneration Units of Chinese Petroleum Corporation
No full text[[abstract]]This thesis presents a modeling approach to the economic dispatch of multi-unit cogeneration system of Lin-Yuan plant of Chinese Petroleum Corporation (CPC). The model to be presented is the first trial model of the cogeneration system in Taiwan. The cogeneration system of Lin-Yuan plant comprises of four high-pressure steam boilers and four back-pressure steam turbine generators each of 10 MW. Because these boilers and turbine generators have been operated for years, their heat rate curve already differed from their original manufacturers' design data. To measure the heat rate, we carried out a series of tests by uploading or deloading these units during the annual maintenance period of 1995 for the third naphtha cracking plant of Lin-Yuan. We then curve-fitted the heat rate measurement data by the artificial neural network method. Based on the heat rate function obtained by these curve-fitting, we constructed the economic dispatch model for the boilers and turbine-generators respectiv- ely. The boiler model aims to decide the steam production of each boiler at the least total fuel consumption to meet the steam demand of Lin-Yuan plant. The turbine-generator model decides the power production of each turbine-generator to maximize total power production under a fixed amount of steam supply. According to the numerical testing results of these two models, we evalua- ted the present operation of Lin-Yuan plant and proposed several economic operation suggestions. By the end of 1996, CPC will install, at Lin-Yuan, one more high-pressure steam boiler with size of 250 tons/hr and one turbine generator of the extraction/ conde- nsation type with size of 40 MW. With this additional flexibility to the plant operation, our modeling approach will find itself a more significant impact on the cogeneration operation.[[fileno]]2030164030047[[department]]電機工程學
Establish the Voluntary Environmental Club with Special Reference to Lin-Yuan Industrial District
No full textAlthough petrochemical industry is one of the most important industries in
Taiwan, the development of related industries are effected by environmental
protests frequently. To set up the institutional arrangements of property and
liability rules, we can understand how entrepreneur to internalize externalities
and why the residences nearby the plants will make the collective decision to
resist the externalities. We therefore suggest petrochemical industry using
voluntary environmental program with club theory to create the positive
externality and reduce the emission of pollutants. Moreover, to implement
voluntary environmental program in Lin-Yuan Industrial District to release the
necessary information to all of stakeholders, to declare that petrochemical
industries can be responsible for environment and society and then archive the
sustainable development
Unraveling the Mechanisms of Thermal Quenching of Luminescence in Ce3+-Doped Garnet Phosphors
No full textThe environmental and economic benefits of phosphor-converted white-light-emitting diodes (pc-WLEDs) have been increasingly appreciated in recent years. However, a significant challenge in this field pertains to a phenomenon known as thermal quenching, which takes place inside phosphors and leads to a pronounced reduction of the emission intensity under high-power light-emitting diode operation. The development of new, more thermally stable phosphors depends on a better understanding of the mechanisms underpinning thermal quenching in phosphors. Here we review the current understanding of thermal quenching mechanisms in Ce3+-doped garnet phosphors, which are widely considered one of the most important families of phosphors for application in pc-WLEDs. In particular, we highlight key structural and dynamical properties, such as the coordination environment of the Ce3+ ions, phonons and local vibrational modes, and structural and chemical defects, which are shown to correlate with phosphor performance. We also discuss the perspectives for future studies in this field in hopes of accelerating the development of new efficient phosphors featuring suppressed thermal quenching of luminescence
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