Glass Capillary Tension Feed System Structure Design

2014 ◽  
Vol 618 ◽  
pp. 492-497
Author(s):  
Shan Chen ◽  
Zhi Yuan Yao
Keyword(s):  
Structure Design ◽  
System Structure ◽  
Sequencing Technology ◽  
Glass Capillary ◽  
Feed System ◽  
Nanofluidic Devices ◽  
Inner Diameter ◽  
Capillary Tension ◽  
Control Accuracy ◽  
Moving Parts

The nanofluidic devices with the nanopores are the foundation of the third generation of the DNA sequencing technology. Comparing with the traditional nanopores constructed on the nanofilms, the nanofluidic devices made by the SiO2 have higher stiffness, strength and stability. We study on the structure design of glass capillary tension feed system, used in manufacture of the nanofluidic devices with the nanopores. Firstly, we design glass capillary tension feed system, including the mechanical moving parts, heating parts and the control parts, which is used to heat glass capillary and stretch it to get glass capillary with a smaller inner diameter in need. Among them, the control accuracy of the moving parts is up to 1μm, the heating range of heating parts is less than 5mm, and the temperature can reach 1500 ̊C. Then we make a prototype, and do some experiments with it. According to the experiment results, the system can be used for glass capillary tension, and the inner diameter of the nanoglass capillary stretched by this system is as small as 500 nm.

Structure Design of Large Travel One-Arm Bridge Type Z-Axis Nano-Positioning Stage

2015 ◽  
Vol 645-646 ◽  
pp. 1064-1071
Author(s):  
Wei Fan ◽  
Zhong Shen Li ◽  
Shao Yin Jiang
Keyword(s):  
Structure Design ◽  
System Structure ◽  
Scanning System ◽  
Positioning Stage ◽  
Ultra Precision ◽  
Bridge Type ◽  
Abbe Error ◽  
Designing Method ◽  
Scanning Motion ◽  
Control Accuracy

In some areas such as micro-mechanical, ultra-precision machining, nanotechnology, the high-precision positioning and very fine vertical scanning motion are needed urgently. Therefore, the Z-axis micro-displacement driving control technology has become the key technology in these areas. The piezoelectric ceramics actuator and stepper motor were integrated into hybrid linear actuator in Z-axis nanopositioning stage, and this can simplify the structure of the drive system. By calculating the gravity center of the vertical scanning system, and using single counterweight, a new one-arm bridge type structure was built. Appropriate tension and current sensors were also equipped in order to real-time monitor the drive status. It is feasible to balance the weight with this simplified system structure, and also guarantee the driving control accuracy of nanopositioning stage. Besides, in the structural design, the Abbe error can be reduced greatly by placing the stage center, grating ruler and displacement measurement centerline on the same line with grating reading head. The driving travel of nanopositioning stage is 150mm, and driving resolution is 1nm. The designing method introduced gives a scientific method and practical reference for the development of z-axis driving control system.

Manufacture of the Glass Nanopore Based on Laser Heating and Experimental Research

2016 ◽  
Vol 851 ◽  
pp. 244-248
Author(s):  
Ya Fei Zhang ◽  
Zhi Yuan Yao ◽  
Bi Cheng Wu
Keyword(s):  
Laser Heating ◽  
Chemical Method ◽  
Physical Method ◽  
Experimental Basis ◽  
Generation System ◽  
Glass Capillary ◽  
Linear Ultrasonic Motor ◽  
Capillary Tension ◽  
Through Hole

The glass nanopore produced by the physical method has better physical characteristics, higher strength, stronger stability, longer life and other significant features compared with the chemical method. The purpose of this paper is to study DNA sequencing (973 project) to provide experimental basis for preparation of glass capillary 5nm 3D nanochannel In this paper, we design a set of glass capillary tension system which is controlled by laser heating and linear ultrasonic motor and produced successfully the device for the preparation of nanopore below 50 nm. In addition, the use of micro droplet generation system has carried out preliminary characterization of nanopore drawn devices. Seen from the characterization, the nanopore device fabricated can indeed produce a through-hole.

scholarly journals Control Strategy and Performance Simulation Study on Extended Range Electric Vehicle

2019 ◽  
Vol 79 ◽  
pp. 03006
Author(s):  
Limian Wang ◽  
Shumao Wang ◽  
Zhenghe Song
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Structure Design ◽  
System Structure ◽  
Simulation Research ◽  
Range Extender ◽  
Strategy Model ◽  
Extended Range ◽  
And Performance

Electric vehicles are recognized as an effective way to alleviate the energy crisis and environmental degradation, and extended range electric vehicles which have both the technical advantages of hybrid electric vehicles and pure electric vehicles, have gradually become a research hotspot in the automotive industry. In this paper, the system structure design of the extended range electric vehicle is carried out. On the basis of the pure electric vehicle, the engine and generator set are added. The control strategy model is established and the simulation research is carried out. The results show that the proposed control strategy model optimizes the working range of the range extender, takes into account the performance of the battery and the drive motor, and shows good tracking characteristics.

A Small Laboratory Automation System Composed of Microcomputer-Based Spectrophotometers

1983 ◽  
Vol 37 (6) ◽  
pp. 502-508 ◽  
Author(s):  
Hironori Susaki ◽  
Takao Miyama ◽  
Shigeru Matsui ◽  
Shigeo Minami
Keyword(s):  
Basic Program ◽  
Structure Design ◽  
System Structure ◽  
Local Mode ◽  
Automation System ◽  
Basic Interpreter ◽  
Basic Language ◽  
Standard Interface ◽  
The Individual ◽  
System Controller

A distributed microcomputer network system which consists of integral microprocessors in intelligent instruments has been developed for automating the spectroscopy laboratory. In this system, the master-slave arrangement of microcomputers is adopted to compose the system controller and three microcomputer-based spectrophotometers (an UV/visible spectrophotometer, an IR spectrophotometer, and a fluorescence spectrophotometer). The IEEE-488 standard interface bus is employed for the hardware compatibility of the communication between the system controller and spectrophotometer subsystems. The Tiny BASIC language is modified as a standard language in the system for real time execution along the communication through the IEEE-488 interface bus. The operation includes two modes: the local mode and the remote mode. In the local mode, the spectrophotometer is manually controlled independently from the system controller. In the remote mode, the modified Tiny BASIC program controls individual spectrophotometers. The program is written by the user at the system controller and is loaded down to the microcomputer of a spectrophotometer subsystem. This program is executed via the individual modified Tiny BASIC interpreter implemented in the subsystem. The system structure, design of the modified Tiny BASIC, and operating procedures are presented together with typical performance data.

Structure Design and Analysis of a High-Speed Camshaft Grinding Carriage

2012 ◽  
Vol 590 ◽  
pp. 320-324
Author(s):  
Guo Jun Zhang ◽  
Yi Lin Liu ◽  
Shang Zhang ◽  
Bi Peng ◽  
Yu Huang
Keyword(s):  
High Speed ◽  
Model Analysis ◽  
Structure Design ◽  
Feed System ◽  
Spindle System

In this paper, the overall structure of a high-speed camshaft grinding carriage and the key components such as electric spindle system and feed system are presented. The model analysis of the electric spindle and grinding carriage box is established to verify the feasibility of the design.

scholarly journals A co-occurrence region based Bayesian network stepwise remote sensing image retrieval algorithm

2018 ◽  
Vol 22 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Rui Zeng ◽  
Yingyan Wang ◽  
Wanliang Wang
Keyword(s):  
Remote Sensing ◽  
Image Retrieval ◽  
Bayesian Network ◽  
Remote Sensing Image ◽  
Structure Design ◽  
System Structure ◽  
Retrieval Algorithm ◽  
Remote Sensing Images ◽  
High Frequency Signal ◽  
Application Systems

Although scholars have conducted numerous researches on content-based image retrieval and obtained great achievements, they make little progress in studying remote sensing image retrieval. Both theoretical and application systems are immature. Since remote sensing images are characterized by large data volume, broad coverage, vague themes and rich semantics, the research results on natural images and medical images cannot be directly used in remote sensing image retrieval. Even perfect content-based remote sensing image retrieval systems have many difficulties with data organization, storage and management, feature description and extraction, similarity measurement, relevance feedback, network service mode, and system structure design and implementation. This paper proposes a remote sensing image retrieval algorithm that combines co-occurrence region based Bayesian network image retrieval with average high-frequency signal strength. By Bayesian networks, it establishes correspondence relationships between images and semantics, thereby realizing semantic-based retrieval of remote sensing images. In the meantime, integrated region matching is introduced for iterative retrieval, which effectively improves the precision of semantic retrieval.

Piston Sealing System Structure Design for Automobile's Lightweight Auto-Transmission

2014 ◽  
Author(s):  
Hyun Jin Choi ◽  
Chulwoo Park ◽  
Jongseo Woo ◽  
Jong Gab Kim ◽  
SungDae Choi
Keyword(s):  
Structure Design ◽  
System Structure

The Mechanical System Structure Design and Kinematics Analysis of the Bipedal Humanoid Robot Leg

2014 ◽  
Vol 496-500 ◽  
pp. 857-860
Author(s):  
Deng Qi Cui ◽  
Hong Bing Xin ◽  
Long Liu ◽  
Tan Wang ◽  
Yue Fei Xin
Keyword(s):  
Degrees Of Freedom ◽  
Humanoid Robot ◽  
Screw Theory ◽  
Structure Design ◽  
System Structure ◽  
Joint Movement ◽  
Kinematics Analysis ◽  
Walking Robot ◽  
Design Requirements ◽  
The Mathematical Model

In the study of humanoid robot, the system design and analysis of the legs is the foundation of realizing humanoid walking robot. In this paper, structure design of each leg joint has been introduced, and according to the degrees of freedom of each joint distribution, using screw theory and exponential product formula to establish the mathematical model of the legs, to analyze the kinematics of the legs, finally obtains that the range of joint movement comply with the design requirements.

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