Maintaining High Accuracy General P300 Speller Using the Language Modeling and Dynamic Stopping

2020 ◽  
Author(s):  
James Soetedjo ◽  
Osita Sean Keluo-Udeke ◽  
Corey Amold ◽  
Nader Pouratian ◽  
William Speier
Keyword(s):  
High Accuracy ◽  
Language Modeling ◽  
P300 Speller

scholarly journals A Brain Computer Interface–Based P300 Speller for Home Appliances Control System

2019 ◽  
Vol 9 (1) ◽  
pp. 1002-1007
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Brain Computer Interface ◽  
High Accuracy ◽  
Computer Interface ◽  
P300 Speller ◽  
Home Appliances ◽  
Environment Control ◽  
Artificial Neural ◽  
Control Application

Environment control is one of the critical difficulties for handicapped individuals who experience the ill effects of neuromuscular ailments. Brain-computer interface systems empower a subject to communicate with a PC machine without drawing down any solid action. This communication does not depend in light of any ordinary medium of correspondences like physical movement, talking, and motion and so forth. The most vital desire for a home control application is high accuracy and solid control. In this study, row-column–based (2 Row, 3 columns) P300 paradigm for home appliances control was designed. In this article, we analyze real-time EEG data for P300 speller using support vector machine and artificial neural network for high accuracy. Using this proposed method we are able to find the target appliance in the correct and fastest way. Four paralyzed people were participating in this study. The artificial neural network gives 85% accuracy within 10 flashes. The results show this paradigm can be used to select the option of a home appliances control application for paralyzed people with users convenient and reliable.

A New 1,000 kV Electron Microscope

1967 ◽  
Vol 25 ◽  
pp. 260-261
Author(s):  
M. Nishigaki ◽  
S. Katagiri ◽  
H. Kimura ◽  
B. Tadano
Keyword(s):  
Electron Microscope ◽  
High Voltage ◽  
Basic Research ◽  
Chromatic Aberration ◽  
High Accuracy ◽  
Biological Specimen ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron

The high voltage electron microscope has many advantageous features in comparison with the ordinary electron microscope. They are a higher penetrating efficiency of the electron, low chromatic aberration, high accuracy of the selected area diffraction and so on. Thus, the high voltage electron microscope becomes an indispensable instrument for the metallurgical, polymer and biological specimen studies. The application of the instrument involves today not only basic research but routine survey in the various fields. Particularly for the latter purpose, the performance, maintenance and reliability of the microscope should be same as those of commercial ones. The authors completed a 500 kV electron microscope in 1964 and a 1,000 kV one in 1966 taking these points into consideration. The construction of our 1,000 kV electron microscope is described below.

Application Of BIM-Technology In The Restoration Of Buildings

2020 ◽  
pp. 42-48
Keyword(s):  
Chinese Communist Party ◽  
Laser Scanning ◽  
High Accuracy ◽  
Information Environment ◽  
Information Modeling ◽  
Structural Scheme ◽  
Traditional Design ◽  
Information Interaction ◽  
Heritage Buildings ◽  
Effective Organization

The paper describes the main trends in the development of BIM technologies in the field of restoration and reconstruction of historical and cultural heritage buildings. The practical part of the paper presents the experience in using information modeling technologies when restoring the building, where the VI Congress of the Chinese Communist Party in Moscow took place. The use of laser scanning technologies made it possible to reproduce with high accuracy in the information model the original appearance of the building using Autodesk RevitR software. It is shown, how the use of information modeling technologies affects the duration of restoration process, taking into account the calculation of the structural scheme and bearing structures of the building, ensuring the identity of the decoration and the effective organization of electromechanical installation. Operating in a single BIM information environment makes it possible to continuously obtain reliable information on the project, which provides more effective information interaction and communication of participants compared to using traditional design methods.

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