نتایج جستجو برای: braincomputer interface

تعداد نتایج: 205771  

ژورنال: :مطالعات ادبیات کودک 2012
زهره حسن پور سعید رضایی شریف آبادی

a study of the features of the international children's digital library's user interface from the viewpoint of users and presenting a proposed model   zohreh hassanpoor*                  saeed rezaei sharifabadi** alzahra university of tehran   this research studies iranian children's understanding of the meaning of conceptual signs and icons existing in the user interface of the internati...

H. Bakhtiari M. Ghafari M. Khanzadeh Gharah Shiran, M. MohammadNejad S. Rajaee

In the present research, the effect of standoff distance on corrosion properties of the joint of three aluminum–steel explosive layers has been studied. For this purpose, the samples were welded with various standoff distance under constant explosive load. Optical Microscopy and Scanning Electron Microscopy were used to measure the quality of the joint and type of interface. Furthermore, point ...

Introduction: User interfaces are a crucial factor in ensuring the success of mobile applications. Mobile Educational Applications not only provide flexibility in learning, but also allow learners to learn at any time and any place. The purpose of this article is to investigate the effective factors affecting the design of the user interface in mobile educational applications. Methods: Quantita...

راشدی, غلامرضا ,

  In this paper, the density of states (DOS) of a planar d-wave Josephson junction is studied analytically. Two high temperature superconductors are separated by an interface with finite transparency coefficient. The c-axes are parallel to the interface and ab-axes have a mis-orientation. The tunneling occurs via the interface because of phase difference between superconducting bulks. The effec...

ژورنال: مواد پرانرژی 2017

In this research, Effect of explosive ratio parameter on interface properties of explosively bonded copper-410 martensitic stainless steel were investigated, plates were welded in constant standoff distance with different explosive ratios. Optical microscopy, scanning electron microscopy, Microhardness and Tensile shear tests were carried out. The results showed that wavelength, wave amplitude,...

M. Haghpanahi, H. Ghomashchi ,

Nowadays total joint replacements are widely used in the world, so in average 800,000 joint surgeries are done yearly only in Europe and North America. However implant loosening is and remains as the major issue of all implant failures and therefore causes revision surgery procedures. Studies and experiments have identified poor fixation of implants most likely is the main cause of long term im...

ژورنال: سلامت کار ایران 2014

 Background and aims: Interface analysis methods are used to assess the man-machine interface of a particular system, product or device. Interface analysis methods can be used to assess a number of different aspects associated with a particular interface, including usability and user satisfaction. The purpose of this study is to evaluate the usability level of gas chromatographs that are being ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
parissa khadiv parsi mohammad ali moosavian

after designing and constructing a coalescence cell, drop/interface coalescence phenomenon was studied in the absence and presence of single surfactant.two surface active agents of sodium dodecyl sulfate and 1-decanol were used. distilled water was used as dispersed phase. toluene, n-heptane and aqueous 60% (v/v) of glycerol were selected as continuous phases, separately. it was found that the ...

Journal: :journal of dentistry, tehran university of medical sciences 0
hakimeh siadat mahnaz arshad assistant professor of tehran university of medical sciences hossein-ali mahgoli babak fallahi

objectives : microbial leakage through the implant-abutment (i-a) interface results in bacterial colonization in two-piece implants. the aim of this study was to compare microleakage rates in three types of replace abutments namely snappy, goldadapt, and customized ceramic using radiotracing. materials and methods: three groups, one for each abutment type, of five implants and one positive and ...

the nonlinear discrete crack modeling of Shahid Rajaee thin arch dam is considered. The interface elements are positioned such that certain potential separated blocks can form possible failure mechanisms. The dynamic stability of theses blocks are investigated by a special finite element program "MAP-73" which its nonlinear algorithm and interface elements formulation are presented.

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