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西安交通大学 [4]
华南理工大学 [2]
厦门大学 [1]
北京大学 [1]
北京航空航天大学 [1]
烟台海岸带研究所 [1]
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期刊论文 [6]
会议论文 [3]
学位论文 [1]
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碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究
期刊论文
海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82
作者:
李宝泉
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2020/06/17
潮间带
大型底栖动物
碳氮稳定同位素
食源和营养级分析
采样部位选取
intertidal zone
macrobenthos
carbon and nitrogen stable isotopes
food sources and trophic levels study,sampling parts
The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes
when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.
Passive Noise Shaping in SAR ADC With Improved Efficiency
期刊论文
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2018, 卷号: 26, 页码: 416-420
作者:
Song, Yan
;
Chan, Chi-Hang
;
Zhu, Yan
;
Geng, Li
;
Seng-Pan, U.
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2019/11/26
successive approximation register (SAR)
passive noise shaping (PNS)
delta sampling
oversampling
Analog-to-digital converter (ADC)
Real-time and high accuracy frequency measurements for intermediate frequency narrowband signals
期刊论文
REVIEW OF SCIENTIFIC INSTRUMENTS, 2018, 卷号: 89, 页码: 014704
作者:
Tian, Jing
;
Meng, Xiaofeng
;
Nie, Jing
;
Lin, Liwei
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2019/12/30
Discrete Fourier transforms
Fast Fourier transforms
Fourier analysis
Mean square error
Modulators
Accurate measurement
Conventional methods
Fourier coefficients
Frequency measurements
Intermediate frequencies
Intermediate frequency signals
Sampling frequencies
Sigma Delta modulator
Iterative methods
article
calculation
Fourier transformation
sampling
A 12-bit incremental ΣΔ ADC for battery management system in electric vehicles
会议论文
作者:
Wang, Xiaofei
;
Zhang, Hong
;
Yang, Guoqiang
;
Li, Changyi
;
Hao, Yue
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/12/02
Analog to digital converters
Battery voltages
Conversion errors
Feed-back loop
Power supply voltage
Sampling clocks
Second orders
Sigma-delta ADC
Theoretical and simulation study on high accuracy FFT algorithm for tanδ monitoring
期刊论文
Gaoya Dianqi/High Voltage Apparatus, 2009, 卷号: 45, 期号: 2, 页码: 57-61
作者:
Hao, Xi-Wei
;
Yang, Da-Wei
;
Liu, Guang-Van
;
Zhang, Guan-Jun
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/12/18
FFT
Frequency fluctuation
Harmonic analysis
On-line tan&delta
Monitoring
Unsynchronized sampling sequence
Window and interpolation algorithm
Double-sampling ΣΔ modulator architecture for broadband applications and system simulation
期刊论文
Xitong Fangzhen Xuebao / Journal of System Simulation, 2009, 卷号: 21, 期号: 6, 页码: 1706-1709
作者:
Yang, Xiao
;
Chen, Gui-Can
;
Cheng, Jun
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2019/12/18
&Sigma
&Delta
modulator
Double-sampling
Oversampling ratio
Quantization noise
三阶级联Sigma-Delta调制器设计
学位论文
2006, 2006
郭先清
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2016/02/14
开关电容
Sigma-Delta调制器
过采样
Switched-Capacitor
Sigma-Delta Modulator
Over-sampling
Long-term record of atmospheric CO2 and stable isotopic ratios at Waliguan Observatory: Background features and possible drivers, 1991-2002
期刊论文
global biogeochemical cycles, 2005
Zhou, LX
;
Conway, TJ
;
White, JWC
;
Mukai, H
;
Zhang, XC
;
Wen, YP
;
Li, JL
;
MacClune, K
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/12
AIR-SAMPLING-NETWORK
TERRESTRIAL CARBON UPTAKE
LATITUDINAL DISTRIBUTION
INTERANNUAL VARIABILITY
3-DIMENSIONAL SYNTHESIS
DELTA-C-13 MEASUREMENTS
SECULAR VARIATIONS
TRANSPORT MODEL
MAUNA-LOA
DIOXIDE
A New Op-amp Noise Model for Switched-Capacitor Sigma-Delta Modulator in SIMULINK (CPCI-S收录)
会议论文
2014 IEEE INTERNATIONAL CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC)
作者:
Wu, F.[1,2]
;
Chen, Z. J.[2]
;
Zhao, M.[2]
;
Xu, D. Y.[1,2]
;
Shen, G. C.[1,2]
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/04/12
sigma delta modulators
correlated double sampling
non-ideality
op-amp noise
SIMULINK
Modified Fault Isolation Filter for Networked Control System with Send-on-delta Sampling (CPCI-S收录)
会议论文
2011 30TH CHINESE CONTROL CONFERENCE (CCC)
作者:
Li Shanbin[1]
;
Xu Bugong[1]
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2019/04/15
Networked control system
Fault isolation filter
Event-triggered sampling
Send-on-delta
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