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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
新疆生态与地理研究所 [1]
西北高原生物研究所 [1]
高能物理研究所 [1]
烟台海岸带研究所 [1]
采集方式
OAI收割 [6]
内容类型
期刊论文 [4]
会议论文 [2]
发表日期
2019 [2]
2014 [1]
2013 [1]
2010 [1]
2005 [1]
学科主题
Instrument... [1]
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Distribution, pollution, and ecological risks of rare earth elements in soil of the northeastern Qinghai-Tibet Plateau
期刊论文
OAI收割
HUMAN AND ECOLOGICAL RISK ASSESSMENT, 2019, 卷号: 25, 期号: 7, 页码: 1816-1831
作者:
Wu, J
;
Lu, J
;
Li, LM
;
Min, XY
;
Zhang, ZH
  |  
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2020/07/08
rare earth elements
the Qinghai-Tibet plateau
characteristic parameters
pollution
ecological risk
Development and Application of Transposable Element-Based Chromosomal Markers for the St Genome in Triticeae
期刊论文
OAI收割
CYTOGENETIC AND GENOME RESEARCH, 2019, 卷号: 159, 期号: 4
作者:
Liu, Ruijuan
;
Yu, Feng
  |  
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2020/11/25
Genomic characteristic
Transposable elements
St genome
Y genome
Chromosomal marker
Analysis of the elemental composition of Tang Sancai from the four major kilns in China using EDXRF
期刊论文
OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2014, 卷号: 319, 页码: 95-99
作者:
Ma B(马波)
;
Liu L(刘珑)
;
Feng SL(冯松林)
;
Xu Q(徐清)
;
冯向前;Ma, B
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2016/04/08
Tang Sancai
EDXRF
Characteristic elements
Provenance identification
新疆柴窝堡地区沉积物元素地球化学特征及其环境意义[J]
期刊论文
OAI收割
自然资源学报, 2013, 卷号: 7, 页码: 1221-1231
作者:
马龙
;
吴敬禄
;
吉力力·阿不都外力
;
中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室
;
中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室
  |  
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2017/12/29
元素
地球化学特征
数理统计
柴窝堡湖 Elements
Geochemical Characteristic
Mathematical Statistics
Chaiwopu Lake
Random noise filtering technology of piezoelectricity gyro (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Qingjun L.
;
Yongming Y.
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
Inertia sensing elements are usually adopted as the sensors of velocity stabilization loop in airborne photoelectric equipments
therefore we need to adopt filtering processing to reduce influence to control system. In this paper
which are constituted stabilized control system
we analyze the characteristic of noise gyro drift
that purpose is reducing the influence of the movement of carrier to visual axis of photoelectric probing system. But gyro
and utilize Kalman filtering technology to conduct filtering processing to output signal of gyro
especially the piezoelectricity gyro generates drift
this method can reduce output noise effectively. The simulation results show that the proposed filtering processing method can improve the low velocity characteristic. 2010 IEEE.
which is the main error source of photoelectric stabilized control system
Theoretical analysis of 980nm high power Vertical External-cavity Surface-emitting Semiconductor Laser (VECSEL) (EI CONFERENCE)
会议论文
OAI收割
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang L.-J.
;
Wang L.-J.
;
Ning Y.-Q.
;
Qin L.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
By using bottom-emitting structure
we will develop laser diode (LD) pumped 980 nm VECSEL with active region of InGaAs/GaAsP/AlGaAs system. Because the thickness of barrier layer and absorption layer exceed that of quantum well
single well approximation model (KP method) can be used to calculate the band structure of VECSEL. The Schrodinger equation of finite deep potential well can be adopted to calculate the energy level structures of electron
heavy and light holes. According to the transition selection rule
we theoretically obtained the emitting wavelength of VECSEL and calculated quasi-Femi energy of valence band and conduction band based on the analysis of energy level structure of electron and holes. By analyzing the gain of strained quantum wells
we calculated the gain of VECSEL using transition matrix elements of electron
heavy and light holes. We give out the threshold gain
output power and other characteristic parameters. We will study the configuration of VECSEL and pumping scheme. We designed external cavity mirror
active region and bottom-emitting structure. A LD-pumped vertical external cavity surface-emitting laser whose output power is greater than 1.0 W can be predicted.