scholarly journals Scorepochs: a computer-aided scoring tool for resting-state M/EEG epochs

2020 ◽  
Author(s):  
Matteo Fraschini ◽  
Simone Maurizio La Cava ◽  
Matteo Demuru
Keyword(s):  
Resting State ◽  
Selection Procedure ◽  
Objective Method ◽  
Epoch Length ◽  
Computer Aided ◽  
Definition Of ◽  
Scoring Tool ◽  
Automatic Scoring ◽  
State Analysis

AbstractM/EEG resting-state analysis requires the definition of the epoch length and the criteria to select which epochs to include in the subsequent steps. However, the effects of epoch selection remain scarcely investigated and the procedure used to (visually) inspect, label and remove bad epochs is often not documented thus hindering the reproducibility of the reported results. In this study, we present Scorepochs, a simple and freely available tool for automatic scoring of resting-state M/EEG epochs that aims to provide an objective method to aid M/EEG experts during epoch selection procedure.

scholarly journals MANUFACTURE OF A DIE PROTOTYPE FOR DIDACTIC PURPOSES IN MECHATRONIC ENGINEERING

2020 ◽  
pp. 1-40
Author(s):  
ELIEL EDUARDO MONTIJO-VALENZUELA ◽  
SAUL DANIEL DURAN-JIMENEZ ◽  
LUIS ALBERTO ALTAMIRANO-RÍOS ◽  
JOSÉ ISAEL PÉREZ-GÓMEZ ◽  
OSCAR SALMÓN-AROCHI
Keyword(s):  
Mechanical Design ◽  
Theoretical Calculations ◽  
Low Cost ◽  
Die Design ◽  
Element Analysis ◽  
Technological Institute ◽  
Computer Aided ◽  
Cad Models ◽  
Functional Prototype ◽  
Definition Of

The objective of this research is to manufacture a prototype of a teaching die for the specialty of precision mechanical design in mechatronic engineering, in order to achieve the skills required in unit two, regarding dies. The methodology used consists of five stages: 1. Definition of the preliminary conditions. 2. Theoretical calculations for die design. 3. Design, modeling and assembly using computer-aided software (CAD) of the parts that make up the die. 4. Validation with simulation of finite element analysis (AEF). 5. Manufacture of parts and physical assembly of the die. A functional prototype was obtained with which the teacher and student can perform calculations, designs and CAD models, AEF analysis of the static and fatigue type, manufacture of rapid prototypes using 3D printing, the identification of the parts that make up a die and their functioning. The advantage of this prototype, compared to metal die-cutting machines, is its low cost of production and manufacturing, it does not require expensive and specialized machinery for manufacturing, specific designs can be made by the students and its subsequent manufacture within the laboratories of the Technological Institute of Hermosillo.

scholarly journals Defining Excellence: 70 Years of John Bates Clark Medals

2017 ◽  
Author(s):  
Beatrice Cherrier ◽  
Andrej Svorenčík
Keyword(s):  
Quantitative Analysis ◽  
Nobel Prize ◽  
Selection Procedure ◽  
Milton Friedman ◽  
The Press ◽  
Age Limit ◽  
Definition Of

In 2017 the John Bates Clark Award turned 70, and the 39th medal was be awarded. Often dubbed the “baby Nobel Prize,” widely discussed by economists and covered in the press, it has become a professional and public marker of excellence for economic research.Yet, after three initial unanimous choices of laureates (Paul Samuelson, Kenneth Boulding, Milton Friedman), the award was increasingly challenged. The prize was not awarded in 1953, almost discontinued three times, the selection procedure and the age limit also created issues. We show how economists in these years disagreed over the definition of merit and excellence. Many young economists felt the prize was biased toward theory and asked for the establishment of a separate “Wesley Clair Mitchell award” for empirical and policy-oriented work. We examine how the committee on honors and awards reacted to critique on the lack of diversity of laureates in origins, affiliations, fields and methods, and we provide a quantitative analysis of the evolving profile of laureates.

Computer-Aided Design Synthesis Using Syntactic Solid Modeling

1994 ◽  
Author(s):  
Vassilios E. Theodoracatos ◽  
Xiaogang Guan
Keyword(s):  
Computer Aided Design ◽  
Solid Modeling ◽  
Large Set ◽  
Complex Structures ◽  
Design Synthesis ◽  
Computer Aided ◽  
Grammar Rules ◽  
Small Set ◽  
Definition Of ◽  
Aided Design

Abstract This paper presents a new Computer-Aided Design (CAD) synthesis model which uses Plex Grammar as structural relationship descriptors and NURBS surface representation for constructing standard and non-standard solid entities. Here, the designer uses a syntactic design methodology for early topological and geometrical definition of the structure of concept alternatives resulting from the design process. This syntactic scheme provides the capability of describing a large set of complex structures by using a small set of simple entities. The recursive nature of the grammar and the hierarchical representation of the structure makes the description of complex structures simple and under the direct control of the designer. An object structure constructive tree is generated and subsequently translated into Plex Grammar production rules in order to form an Interconnection Matrix (ICM) expressing. The resulting Plex structure defined in the ICM expresses the topological information among entities which form the specific types of objects. By modifying the Plex grammar rules, various objects with different geometry and topology can easily be reconstructed. Compared to conventional solid modeling techniques, this approach provides more systematic object generation, easy manipulation and modification, control over congruity and the ability to represent sculptured shapes. Several examples of syntactic solid modeling applied in design synthesis will be presented for further usage in downstream applications.

Information System for the Initiation and Competitive Selection of Participatory Projects

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Marina Tsurkan ◽  
◽  
David Mamagulashvili
Keyword(s):  
Information Technologies ◽  
Selection Procedure ◽  
Project Managers ◽  
Data Management System ◽  
It Use ◽  
Accurate Definition ◽  
Government Project ◽  
The Government ◽  
Definition Of ◽  
Selection Of

The relevance of the article is caused by the necessity to use information technologies and digital methods during the selection and launch of regional participatory projects. The objective of the paper is to develop technical task pattern for PIMS of LISP projects with the emphasis on launching models and appropriate selection procedure for participatory projects that are to obtain the interbudgetary transfer in the form of grant. The article gives more accurate definition of the term «participatory project» in the area under study. The study demonstrates the best examples of IT use during the launch and selection of regional participatory projects. The paper sets out the key requirements to the participatory projects data management system. The results of the study are practically relevant for the government, project managers and scientists, engaged in digital economics and management.

Motor Imagery Training During Arm Immobilization Prevents Corticomotor Idling: An EEG Resting-State Analysis

2020 ◽  
Vol 33 (3) ◽  
pp. 327-335
Author(s):  
Ursula Debarnot ◽  
Franck Di Rienzo ◽  
Sebastien Daligault ◽  
Sophie Schwartz
Keyword(s):  
Motor Imagery ◽  
Resting State ◽  
Imagery Training ◽  
State Analysis

scholarly journals Reduced higher-dimensional resting state fMRI dynamism in clinical high-risk individuals for schizophrenia identified by meta-state analysis

2018 ◽  
Vol 201 ◽  
pp. 217-223 ◽  
Author(s):  
Eva Mennigen ◽  
Robyn L. Miller ◽  
Barnaly Rashid ◽  
Susanna L. Fryer ◽  
Rachel L. Loewy ◽  
...  
Keyword(s):  
High Risk ◽  
Resting State ◽  
Resting State Fmri ◽  
Clinical High Risk ◽  
Higher Dimensional ◽  
State Analysis

The calculation of gear pump porting areas by mathematical means

2014 ◽  
Vol 229 (1) ◽  
pp. 180-188 ◽  
Author(s):  
Martin K Yates
Keyword(s):  
Computer Aided Design ◽  
Gear Pump ◽  
Fuel Delivery ◽  
Lumped Parameter ◽  
Pinion Gear ◽  
Computer Aided ◽  
Gear Pumps ◽  
Aero Engines ◽  
Definition Of ◽  
Aided Design

Twin pinion gear pumps are used widely in industrial hydraulics and as fuel-delivery pumps for aero engines. The kinematics of the pumping action leads to high-flow rates into and out of the meshing gears, and at the high speeds used with aerospace fuel pumps cavitation can occur. One-dimensional ‘lumped parameter’ models are often used to analyse this type of pump. These methods rely on an accurate description of the volume trapped by the meshing teeth and the flow areas during the meshing cycle. Typically, multiple computer-aided design models have to be created to calculate these values during the meshing cycle. This paper presents a mathematical method for calculating these parameters based on a parametric definition of the gear and inlet and outlet porting. Green's theorem is used to allow line integrals around the periphery of the tooth spaces to be used to calculate the volumes and flow areas. Winding numbers are used to calculate the inflow and outflow areas that are formed by the intersection of the trapped volume and the side area porting. The method is validated against computer-aided design model data. This method is well suited for incorporation in an optimisation algorithm since the geometry is defined parametrically.

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