scholarly journals Global dynmics of of a syrphid fly-aphid model with stage structure for predator popoluation

2017 ◽  
Vol 2017 ◽  
Keyword(s):  
2016 ◽  
Vol 45 (3) ◽  
pp. 336-338
Author(s):  
Kazuya Morimoto ◽  
Kenji Tamura ◽  
Hiroshi Sakuma

2012 ◽  
Vol 229-231 ◽  
pp. 1507-1510
Author(s):  
Xiang Ning Fan ◽  
Hao Zheng ◽  
Yu Tao Sun ◽  
Xiang Yan

In this paper, a 12-bit 100MS/s pipelined ADC is designed. Capacitance flip-around structure is used in sample and hold circuit, and bootstrap structure is adopted in sampling switch which has high linearity. Progressively decreasing technology is used to reduce power consumption and circuit area, where 2.5bit/stage structure is used in the first two stages, 1.5bit/stage structure is used for 3rd to 8th stages, and at the end of the circuit is a 2bit-flash ADC. Digital calibration is designed to eliminate the offset of comparators. Switched-capacitor dynamic comparator structure is used to further reduce the power consumption. The ADC is implemented by using TSMC 0.18m CMOS process with die area be 1.23mm×2.3mm. SNDR and SFDR are 65dB and 71.3dB, when sampling at 100MHz sampling clock. The current of the circuit is 96mA under 1.8V power supply.


2010 ◽  
Vol 2010 ◽  
pp. 1-12
Author(s):  
Xiangzeng Kong ◽  
Zhiqin Chen ◽  
Li Xu ◽  
Wensheng Yang

We propose and study the permanence of the following periodic Holling III predator-prey system with stage structure for prey and both two predators which consume immature prey. Sufficient and necessary conditions which guarantee the predator and the prey species to be permanent are obtained.


2007 ◽  
Vol 29 (12) ◽  
pp. 1051-1070 ◽  
Author(s):  
C. Castellani ◽  
X. Irigoien ◽  
R. P. Harris ◽  
N. P. Holliday

2017 ◽  
Vol 435 ◽  
pp. 12-21
Author(s):  
Sharon Bewick ◽  
Guoqing Wang ◽  
Hannah Younes ◽  
Bingtuan Li ◽  
William F. Fagan

Sign in / Sign up

Export Citation Format

Share Document