A Novel Wafer-Map Similarity Search System with High Speed and Accuracy

2021 ◽  
Author(s):  
Chang Xu ◽  
Qi-Shi Shi ◽  
Ping-Fen Shi
Keyword(s):  
Similarity Search ◽  
High Speed ◽  
Search System ◽  
Speed And Accuracy

scholarly journals A New Method to Verify the Measurement Speed and Accuracy of Frequency Modulated Interferometers

2021 ◽  
Vol 11 (13) ◽  
pp. 5787
Author(s):  
Toan-Thang Vu ◽  
Thanh-Tung Vu ◽  
Van-Doanh Tran ◽  
Thanh-Dong Nguyen ◽  
Ngoc-Tam Bui
Keyword(s):  
Phase Change ◽  
High Speed ◽  
Measurement Accuracy ◽  
Slow Motion ◽  
New Method ◽  
Virtual Displacement ◽  
Electro Optic ◽  
Lock In ◽  
Speed And Accuracy ◽  
Electro Optic Modulator

The measurement speed and measurement accuracy of a displacement measuring interferometer are key parameters. To verify these parameters, a fast and high-accuracy motion is required. However, the displacement induced by a mechanical actuator generates disadvantageous features, such as slow motion, hysteresis, distortion, and vibration. This paper proposes a new method for a nonmechanical high-speed motion using an electro-optic modulator (EOM). The method is based on the principle that all displacement measuring interferometers measure the phase change to calculate the displacement. This means that the EOM can be used to accurately generate phase change rather than a mechanical actuator. The proposed method is then validated by placing the EOM into an arm of a frequency modulation interferometer. By using two lock-in amplifiers, the phase change in an EOM and, hence, the corresponding virtual displacement could be measured by the interferometer. The measurement showed that the system could achieve a displacement at 20 kHz, a speed of 6.08 mm/s, and a displacement noise level < 100 pm//√Hz above 2 kHz. The proposed virtual displacement can be applied to determine both the measurement speed and accuracy of displacement measuring interferometers, such as homodyne interferometers, heterodyne interferometers, and frequency modulated interferometers.

High-Speed Passphrase Search System for PGP

2010 ◽  
Vol E93-A (1) ◽  
pp. 202-209
Author(s):  
Koichi SHIMIZU ◽  
Daisuke SUZUKI ◽  
Toyohiro TSURUMARU
Keyword(s):  
High Speed ◽  
Search System

Building a web-scale image similarity search system

2009 ◽  
Vol 47 (3) ◽  
pp. 599-629 ◽  
Author(s):  
Michal Batko ◽  
Fabrizio Falchi ◽  
Claudio Lucchese ◽  
David Novak ◽  
Raffaele Perego ◽  
...  
Keyword(s):  
Similarity Search ◽  
Image Similarity ◽  
Search System

Application of Torque Control Mode in Drilling & Routing Machine

2012 ◽  
Vol 569 ◽  
pp. 758-762
Author(s):  
Guang Chao Liu ◽  
Ming Jun Liu
Keyword(s):  
Control System ◽  
Dynamic Response ◽  
Pid Control ◽  
High Speed ◽  
Torque Control ◽  
Control Mode ◽  
Control Law ◽  
Forward Algorithm ◽  
Positioning Systems ◽  
Speed And Accuracy

In high speed and accuracy positioning systems, torque control mode can achieve much better dynamic response and easy tuning of PID parameters compared to those of position and speed control modes. By adopting and implementing the improved PID control law with feed forward algorithm, the control system can provide much higher performance at high speed movement.

Rapid and Accurate Calculation of Water and Steam Properties Using the Tabular Taylor Series Expansion Method

2001 ◽  
Vol 123 (3) ◽  
pp. 707-712 ◽  
Author(s):  
K. Miyagawa ◽  
P. G. Hill
Keyword(s):  
Taylor Series ◽  
High Speed ◽  
Taylor Series Expansion ◽  
Expansion Method ◽  
Good Representation ◽  
Test Results ◽  
Helmholtz Equations ◽  
Industrial Use ◽  
Direct Use ◽  
Speed And Accuracy

In applications where both speed and accuracy of computation of thermodynamic properties are important and particularly where the independent variables are not those used in Helmholtz equations, direct use of such equations can be excessively time-consuming. This paper introduces the enthalpy-pressure version of the tabular Taylor series (TTSE) method, which has the accuracy and computing speed required for application in power industries. The IAPWS formulation for scientific use, IAPWS-95, was used as the basic Helmholtz equation. The speed and accuracy of the TTSE have been compared with the IAPWS formulation for industrial use, IAPWS-IF97, which has been developed to achieve high-speed calculation with good representation of IAPWS-95 values. Test results show that the TTSE accurately represents the basic equation and that the computation speed is higher than that of IF97.

scholarly journals Evolutionary optimization of speed and accuracy of decoding on the ribosome

2011 ◽  
Vol 366 (1580) ◽  
pp. 2979-2986 ◽  
Author(s):  
Ingo Wohlgemuth ◽  
Corinna Pohl ◽  
Joerg Mittelstaet ◽  
Andrey L. Konevega ◽  
Marina V. Rodnina
Keyword(s):  
Quality Control ◽  
High Speed ◽  
Living Cells ◽  
Translational Machinery ◽  
Fundamental Parameters ◽  
The Cost ◽  
The Relationship ◽  
Speed And Accuracy ◽  
Bacterial Translation ◽  
Selection Of

Speed and accuracy of protein synthesis are fundamental parameters for the fitness of living cells, the quality control of translation, and the evolution of ribosomes. The ribosome developed complex mechanisms that allow for a uniform recognition and selection of any cognate aminoacyl-tRNA (aa-tRNA) and discrimination against any near-cognate aa-tRNA, regardless of the nature or position of the mismatch. This review describes the principles of the selection—kinetic partitioning and induced fit—and discusses the relationship between speed and accuracy of decoding, with a focus on bacterial translation. The translational machinery apparently has evolved towards high speed of translation at the cost of fidelity.

scholarly journals Efficiency Comparison between Robotic Manipulator Configurations for Trajectory/Path Tracing

2020 ◽  
Vol 10 (11) ◽  
pp. 56-60
Author(s):  
Joshua Laber ◽  
◽  
Ravindra Thamma
Keyword(s):  
Global Economy ◽  
High Speed ◽  
Industrial Robots ◽  
Robotic Arm ◽  
Manufacturing Companies ◽  
Robotic Arms ◽  
Repetitive Tasks ◽  
Pick And Place ◽  
Efficiency Comparison ◽  
Speed And Accuracy

In automation, manufacturing companies require high speed and efficiency to remain competitive in the global economy. One of the most popular ways to increase precision, speed, and accuracy is to implement industrial robotic arms. As of 2020, 2.7 million industrial robots are in operation worldwide. A robotic arm is a machine used to automatic repetitive tasks by manipulating tools or parts in the space around it. Businesses use robotic arms for many operations including pick and place, machining, welding, precision soldering, and other tasks. But with all the different types and configurations of robotic arms, the question remains: What arm would best suit the task at hand? This paper examines and compares three commonly available types of robotic arm: 5-DoF, 6-DoF, and SCARA to compare which are most efficient in tracing paths.

scholarly journals Theoretical and Empirical Analysis of Crime Data

2021 ◽  
Author(s):  
Manisha Mudgal ◽  
Deepika Punj ◽  
Anuradha Pillai
Keyword(s):  
Data Mining ◽  
Neural Networks ◽  
Artificial Neural Networks ◽  
Deep Learning ◽  
Real Time ◽  
High Speed ◽  
Association Mining ◽  
Crime Prediction ◽  
Methods And Techniques ◽  
Speed And Accuracy

Crime is one of the biggest and dominating problems in today’s world and it is not only harmful to the person involved but also to the community and government. Due to escalation in crime frequency, there is a need for a system that can detect and predict crimes. This paper describes the summary of the different methods and techniques used to identify, analyze and predict upcoming and present crimes. This paper shows, how data mining techniques can be used to detect and predict crime using association mining rule, k-means clustering, decision tree, artificial neural networks and deep learning methods are also explained. Most of the researches are currently working on forecasting the occurrence of future crime. There is a need for approaches that can work on real-time crime prediction at high speed and accuracy. In this paper, a model has been proposed that can work on real-time crime prediction by recognizing human actions. 

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