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A Modified Static Contention Free Single Phase Clocked Flip-flop Design for Low Power Applications
Jin-Fa Lin,Ming-Yan Tsai 대한전자공학회 2018 Journal of semiconductor technology and science Vol.18 No.5
A modified static contention free truesingle-phase clocked (TSPC) flip-flop with 23- transistor only is proposed in this paper. It is optimized by a recently presented TSPC based flipflop design and achieves circuit simplification. The optimized measure leads to a new flip-flop design featuring better and various performances. Based on post-layout simulation results using the TSMC CMOS 40nm technology, the proposed design outperforms the conventional TGFF by 49.2% in energy consumption (at 0% data activity switching) with the same layout area.
A Low Voltage and Low Power Flip-flop Design Using Virtual VDD Scheme
Jin-Fa Lin,Shao-Wei Yu,Chang-Ming Tsai,Ming-Hwa Sheu 대한전자공학회 2019 Journal of semiconductor technology and science Vol.19 No.5
A novel low voltage and low power true-single-phase flip-flop (FF) design is proposed in this paper. It is adapted from conventional Set-Reset latch based FF design and achieves circuit simplification by using virtual VDD scheme. The optimization measure leads to a new design providing better various performances. Based on post layout simulation results using the TSMC CMOS 180 nm technology, the proposed design outperforms the conventional TGFF by 68.7% in energy consumption (at 25% switching activity).
Ahn, Myung-Ju,Tsai, Chun-Ming,Hsia, Te-Chun,Wright, Elaine,Chang, John Wen-Cheng,Kim, Heung Tae,Kim, Joo-Hang,Kang, Jin Hyoung,Kim, Sang-We,Bae, Eun-Jin,Kang, Mijeong,Lister, Johanna,Walzer, Stefan Blackwell Pub. Asia 2011 Asia-Pacific journal of clinical oncology Vol.7 No.suppl2
<P>The aim of this analysis is to investigate the mean incremental costs and life expectancy associated with two first-line treatments for advanced non-squamous non-small cell lung cancer (NSCLC) in Korea and Taiwan; bevacizumab plus cisplatin and gemcitabine (BevCG) and cisplatin plus pemetrexed (CP).</P>
( Pin-chih Fang ),( Suming Chen ),( Chao-yin Tsai ),( Jin-ming Tsai ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
Near infrared (NIR) spectroscopy has been widely used in agricultural product inspection because it is non-destructive, fast, and easy to operate. In this research, portable near infrared light detection instrument was used to develop a smartphone interface that could analyze the sugar content of agricultural products via the cloud system. Using the android operating system smartphone as an intermediary software to control the spectrometer configuration, spectra data are transferred and calculated in the cloud system. The user interface would then display the predicted result. So far, an intermediary software has been developed that could transfer spectra data to the cloud server, and a pre-trained guavas calibration equation was used to predict the sugar content of guava. The entire process of scanning, calculating and transferring data takes approximately 10 seconds. In the future, the functionality of the user interface could be improved by allowing manipulation of data configuration during scanning, creating a more diversified user interface with faster analysis time.
Simulation of Poultry House Ventilation using Computational Fluid Dynamics
( Chih-hsiang Hsu ),( Sumingchen ),( Kuang-wen Hsieh ),( Chao-yin Tsai ),( Rou-yan Peng ),( Jin-ming Tsai ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
Poultry output value in Taiwan takes a large proportion of whole livestock production. However, in 2014, it was suffered from a serious bird flu invasion in Taiwan, culling a large number of poultries. Take geese as an example, almost 90% of the geese were culled in 2014. As a result, it caused serious losses to livestock industry. In order to prevent outbreak of bird flu, the government has stipulated that poultry houses must be rebuilt as non-open poultry houses and rehabilitated. Therefore, the development of the design in closed poultry houses is important. In this study, Computational Fluid Dynamics (CFD) was used to simulate a 30 m <sup>*</sup> 8.5 m <sup>*</sup> 3.6 m closed poultry house. There are two suction fans used for longitudinal ventilation. Through the different circulation fan setups to evaluate for the growth conditions of poultry and improve the ventilation of closed poultry houses, and reduce the possibility of invasion of pathogenic sources at the same time. The results showed when a circulation fan was not placed, there was a phenomenon of non-uniform airflow distribution within 6 m near water-cooled wall. When a circulation fan was placed 3 m away from the water-cooled wall, some parts of the airflow concentrated near the fan and caused non-uniform airflow distribution within 9 m near the water-cooled wall, which may be unsuitable for poultries living. The study showed that simulation of flow field facilitates designs of non-open poultry houses.
Study on a Wireless Environmental Monitoring System for Duck Incubator
( Rou-yan Peng ),( Suming Chen ),( Kuang-wen Hsieh ),( Chao-yin Tsai ),( Chih-hsiang Hsu ),( Jin-ming Tsai ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
Taiwan's domestic development of incubators are in simple structure, at low prices, and generally used by the industry. However, high number of regional dead eggs, the inability to understand the environmental conditions of incubator and other issues occurred frequently, resulting in operation and production difficulties. This research developed a wireless environmental monitoring system to collect data and upload to the cloud. A variety of environmental sensors and Raspberry Pi 3 were used in the establishment of wireless sensing module and environmental information detection platform. The environmental information was displayed in real-time and uploaded to the cloud. Computational fluid dynamics (CFD) was also used to simulate the internal flow field inside the incubator to determine the environmental control features, and control heating and humidification equipment with a PID controller. In this study, the establishment of wireless environmental monitoring system was completed. The wireless sensing module and the environment information detection platform have also been developed and tested. The stability of wireless sensing module was 98.5%, and the CFD simulation error was under 20%, which was low enough to predict the actual field temperature changes, and can be applied to the regulation of the incubator environment.