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长春光学精密机械与物... [2]
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Design and Analysis of a Novel 2T2R Parallel Mechanism with the Closed-loop Limbs
期刊论文
OAI收割
International Journal of Automation and Computing, 2021, 卷号: 18, 期号: 4, 页码: 654-666
作者:
Hai-Rong Fang
;
Peng-Fei Liu
;
Hui Yang
;
Bing-Shan Jiang
  |  
收藏
  |  
浏览/下载:56/0
  |  
提交时间:2021/07/20
2T2R parallel mechanism
close loop structure
high stiffness
kinematics analysis
workspace
Repurposing cabozantinib to GISTs: Overcoming multiple imatinib-resistant cKIT mutations including gatekeeper and activation loop mutants in GISTs preclinical models
期刊论文
OAI收割
CANCER LETTERS, 2019, 页码: 105-114
作者:
Lu, Tingting
;
Chen, Cheng
;
Wang, Aoli
  |  
收藏
  |  
浏览/下载:45/0
  |  
提交时间:2020/07/14
cKIT T670I mutant
Activation loop mutants
Drug resistance
Preparation of superparamagnetic maghemite (gamma-fe2o3) nanoparticles by wet chemical route and investigation of their magnetic and dielectric properties
期刊论文
iSwitch采集
Current applied physics, 2015, 卷号: 15, 期号: 8, 页码: 925-929
作者:
Ali, Kashif
;
Sarfraz, A. K.
;
Mirza, Imran M.
;
Bahadur, A.
;
Iqbal, S.
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2019/05/10
Superparamagnetic maghemite (gamma-fe2o3) nanoparticles
Wet chemical method
Xrd measurements
Dielectric constant and tangent losses
M-h and m-t loop
PID control of glucose concentration in subjects with type 1 diabetes based on a simplified model: An in silico trial (EI CONFERENCE)
会议论文
OAI收割
10th World Congress on Intelligent Control and Automation, WCICA 2012, July 6, 2012 - July 8, 2012, Beijing, China
作者:
Yu L.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
An artificial pancreas system (APS) mimics the function of a real pancreas through monitoring a diabetic's blood glucose and administering the right dose of insulin via an automatic control loop. It is hailed as a promising cure of diabetes
though this technology is still years away from commercial use due to a few technological bottlenecks. The simulation model of insulin-glucose metabolism of type 1 diabetes mellitus (T1DM) is an essential part of APS. In order to simplify the parameter identification task so that the model can be implemented electronically with ease
this paper presents a simplified model based on Routh approximation model reduction method. The results show that the approximation error between the simplified model and the original model is so small that can be neglected. Based on the simplified model
a PID controller is designed to maintain normoglycemia (90mg/dl) in subjects with T1DM. The in silico simulation results show that the glucose concentration is controlled well
the risk of hyperglycemia and hypoglycemia is reduced a lot. This suggests that the simplified model describes the insulin-glucose metabolism process accurately
and the PID control algorithm is well-suitable to guide the further development of an APS. 2012 IEEE.
Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:
Sun Z.
收藏
  |  
浏览/下载:94/0
  |  
提交时间:2013/03/25
Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper
some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system
which is composed of the drift adjusting mechanical frame
the ultrasonic motor
the driver of Ultrasonic Motor
the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor
photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system
was introduced the source of the disturbance
and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space
simple configuration
high position control precision
fine repeatability
self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.
Direct visualization of telomeric DNA loops in cells by AFM
期刊论文
OAI收割
SURFACE AND INTERFACE ANALYSIS, 2001, 卷号: 32, 期号: 1, 页码: 32-37
作者:
Chen, A
;
Cao, EH
;
Sun, XG
;
Qin, JF
;
Liu, D
  |  
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2019/04/09
Telomeres
Telomeric Dna
T-loop
G-quartet
Atomic Force Microscopy