A quadrature mixer with a shared transconductor stage is analyzed,including voltage conversion gain, linearity, noise figure, and image rejection. The analysis indicates it has better performance than a conventional G...A quadrature mixer with a shared transconductor stage is analyzed,including voltage conversion gain, linearity, noise figure, and image rejection. The analysis indicates it has better performance than a conventional Gilbert mixer pair in commutating mode. A quadrature down-conversion mixer based on this topology is designed and optimized for an ultra high frequency RFID reader. Operating in the 915MHz ISM band, the presented quadrature mixer measures a conversion gain of 12.5dB,an IIP3 of 10dBm, an IIP2 of 58dBm, and an SSB noise figure of 17.6riB. The chip was fabricated in a 0. 18μm 1P6M RF CMOS process and consumes only 3mA of current from a 1.8V power supply.展开更多
WORI is the Production-Oriented Approach to reading in the TEFL context of China. It is intended to enhance English learners＇ proficiency in writing and reading. By asking questions to draw learners＇ attention to th...WORI is the Production-Oriented Approach to reading in the TEFL context of China. It is intended to enhance English learners＇ proficiency in writing and reading. By asking questions to draw learners＇ attention to the professional writers＇ choices concerning organization, development, style, and diction, teachers explicitly guide learners to observe, analyze, study, apperceive, so as to learn about their writing thinking and strategies. By designing a variety of reading-to-write tasks, teachers endeavour to activate learners＇ writing thinking developed in writing-oriented reading activities to have such writing thinking fixed in mind and internalized. The WORI also fosters English learners＇ autonomy of sustaining development in reading, writing, as well as their English learning.展开更多
Recently, the researchers put their attention on the literature works on Virginia Woolf or James Joyce too heavily just because the skill of stream of consciousness is used through the novel completely. Choosing this ...Recently, the researchers put their attention on the literature works on Virginia Woolf or James Joyce too heavily just because the skill of stream of consciousness is used through the novel completely. Choosing this novel by Japanese writer as an example is an experiment, because the stream of consciousness as a composing method has melted its impression into the modem novel. And in the researcher＇s opinion, regardless the traditional part, the researching focus should be shifted on the works written by nowadays writer. To begin this paper, there are four questions should be solved： First, the definition of stream of consciousness should be known clearly; another question is the structure analysis of structure of Hear the Wind Sing; secondly, compared with the mental space theory and blending theory by Fauconnier, how to judge the function of Three Phases of memory＇s direction on reading should be focused on; thirdly, the reason why readers meet the problem of barrier when they read the stream of consciousness novel, and how the memory helps to solve the problem should be study in this section. Fourth, the extra factors which support the function of memory will enhance the skill of reading the SOC novel and finally foreground the meaning.展开更多
文摘A quadrature mixer with a shared transconductor stage is analyzed,including voltage conversion gain, linearity, noise figure, and image rejection. The analysis indicates it has better performance than a conventional Gilbert mixer pair in commutating mode. A quadrature down-conversion mixer based on this topology is designed and optimized for an ultra high frequency RFID reader. Operating in the 915MHz ISM band, the presented quadrature mixer measures a conversion gain of 12.5dB,an IIP3 of 10dBm, an IIP2 of 58dBm, and an SSB noise figure of 17.6riB. The chip was fabricated in a 0. 18μm 1P6M RF CMOS process and consumes only 3mA of current from a 1.8V power supply.
文摘WORI is the Production-Oriented Approach to reading in the TEFL context of China. It is intended to enhance English learners＇ proficiency in writing and reading. By asking questions to draw learners＇ attention to the professional writers＇ choices concerning organization, development, style, and diction, teachers explicitly guide learners to observe, analyze, study, apperceive, so as to learn about their writing thinking and strategies. By designing a variety of reading-to-write tasks, teachers endeavour to activate learners＇ writing thinking developed in writing-oriented reading activities to have such writing thinking fixed in mind and internalized. The WORI also fosters English learners＇ autonomy of sustaining development in reading, writing, as well as their English learning.
文摘Recently, the researchers put their attention on the literature works on Virginia Woolf or James Joyce too heavily just because the skill of stream of consciousness is used through the novel completely. Choosing this novel by Japanese writer as an example is an experiment, because the stream of consciousness as a composing method has melted its impression into the modem novel. And in the researcher＇s opinion, regardless the traditional part, the researching focus should be shifted on the works written by nowadays writer. To begin this paper, there are four questions should be solved： First, the definition of stream of consciousness should be known clearly; another question is the structure analysis of structure of Hear the Wind Sing; secondly, compared with the mental space theory and blending theory by Fauconnier, how to judge the function of Three Phases of memory＇s direction on reading should be focused on; thirdly, the reason why readers meet the problem of barrier when they read the stream of consciousness novel, and how the memory helps to solve the problem should be study in this section. Fourth, the extra factors which support the function of memory will enhance the skill of reading the SOC novel and finally foreground the meaning.
