著者
HSIEH Min-Ken CHEN Yu-Wen CHEN Yi-Chun WU Chien-Ming
出版者
Meteorological Society of Japan
雑誌
気象集誌. 第2輯 (ISSN:00261165)
巻号頁・発行日
pp.2022-028, (Released:2022-03-10)
被引用文献数
3

We applied tracer transport simulations using Taiwan vector vorticity equation cloud-resolving model (TaiwanVVM) to evaluate the effects of the local circulation associated with the lee vortex and the planetary boundary layer development on the transport and accumulation of the pollutants on a diurnal time scale in central Taiwan. The wind directions of crucial synoptic northeast monsoon are idealized as the initial conditions of the simulations to examine the impact of the lee vortex on the pollutants transport. The primary local non-traffic emission sources are taken as the tracer emission sites so that the experiment results could be a good proxy of the realistic scenarios. With the local circulation over complex topography being resolved explicitly, the impact of the boundary layer development on the tracer transport of the Puli basin is discussed. The simulation results clarify the contribution of the sea breeze and the lee vortex to the tracer transport in central Taiwan. We conclude that high tracer concentration at Puli at night is due to the tracer being trapped by the thinning of the mixed layer depth in the evening. The sensitivity of the local tracer transport to the change of the synoptic wind direction shows that under northeasterly due east (due north) environment, the pollutant transports from the southern source (northern source) of central Taiwan are most likely to induce high concentration in Puli at night. This is the first study to distinguish the contribution of the sea breeze and the lee vortex in pollutants transport in Taiwan. The results obtained from idealized experiments provide the possible mechanism of pollutants transport, which could be taken as an insight to interpret the observations and guide the design of field experiment to further establish the fundamental principles of the pollution transports in central Taiwan.
著者
亀井 輝彦 Li Yan Lee Seungpil 大和田 健 Nguyen Hao Nguyen Qui Mokhlesi Nima Hsu Cynthia Li Jason Ramachandra Venky 東谷 政昭 Pham Tuan 渡邉 光恭 本間 充祥 渡辺 慶久 井納 和美 Le Binh Woo Byungki Htoo Khin Tseng Tai-Yuan Pham Long Kim Kwang-ho Chen Yi-Chieh She Min Yuh Jong Chu Alex Chen Chen Puri Ruchi Lin Hung-Szu Chen Yi-Fang Mak William Huynh Jonathan Chan Jim Yang Daniel Shah Grishma Souriraj Pavithra Tadepalli Dinesh Tenugu Suman Gao Ray Popuri Viski Azarbayjani Behdad Madpur Ravindra Lan James Yero Emilio Pan Feng Hong Patrick Kang Jang Yong Moogat Farookh Fong Yupin Cernea Raul Huynh Sharon Trinh Cuong Mofidi Mehrdad Shrivastava Ritu Quader Khandker QUADER Khandker
出版者
一般社団法人電子情報通信学会
雑誌
電子情報通信学会技術研究報告. ICD, 集積回路 (ISSN:09135685)
巻号頁・発行日
vol.112, no.15, pp.7-12, 2012-04-16

19nm製造プロセスを用い、シングルチップとしては最大容量となる128Gb 3-bit/cell NAND型フラッシュメモリを開発した。NAND型フラッシュメモリとしては最大のGb/mm^2である、チップサイズ170mm^2を実現した。3-bit per cellでありながら、All Bit-Line(ABL)アーキテクチャ、Air Gap技術、400MbpsトグルモードI/Oインターフェースの採用により、標準BCH ECCにおいても18MB/sの書き込みスループットを実現した。
著者
Guo Lanlan Chen Yi Zhang Zhao Fukushima Takehiko
出版者
The Scientific World Journal
雑誌
The scientific world journal
巻号頁・発行日
vol.2012, pp.257392, 2012
被引用文献数
5 2

Nitrogen and phosphorus are considered the most important limiting elements in terrestrial and aquatic ecosystems. however, very few studies have focused on which is from forested streams, a bridge between these two systems. To fill this gap, we examined the concentrations of dissolved N and P in storm waters from forested watersheds of five regions in Japan, to characterize nutrient limitation and its potential controlling factors. First, dissolved N and P concentrations and the N : P ratio on forested streams were higher during storm events relative to baseflow conditions. Second, significantly higher dissolved inorganic N concentrations were found in storm waters from evergreen coniferous forest streams than those from deciduous broadleaf forest streams in Aichi, Kochi, Mie, Nagano, and with the exception of Tokyo. Finally, almost all the N : P ratios in the storm water were generally higher than 34, implying that the storm water should be P-limited, especially for Tokyo.