نتایج جستجو برای: magnetic device

تعداد نتایج: 989267  

Journal: :jundishapur journal of health sciences 0
behzad fouladi dehaghi department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel/fax: +98-6113738282 alireza ghamar department of occupational health, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran seyed mahmood latifi department of bio-statistics, school of public health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions the study results are indicative of the impact of electromagnetic fields on computer users’ health, and it is thus advisable to avoid leaving computers switched on unnecessarily in addition to observing the minimum distance of 60 cm from computer monitors to control the adverse effects of electromagnetic fields. materials and methods electric and magnetic field intensities were meas...

2007
Ricky Tang Terry Kammash Alec D. Gallimore

[Abstract] One of the notable attributes of the Gasdynamic Mirror (GDM) fusion propulsion system is the fact that it lends itself readily to thrust control due to asymmetry in the magnetic field configuration. GDM is a magnetic plasma confinement device that has been proposed as a potential propulsion system. It differs from the standard “collisionless” mirror in that it operates at a much high...

Mahdieh Sharifi Fard, Mohammad Reza Monazzam Parvin Nasiri

Introduction: Recent industrial developments in human societies have caused rapid advancements in technologies of production and distribution of electricity, which in turn result in enhancement of power networks and utilization of high voltages. These networks and the high voltages in transfer lines cause the exposure to electric and magnetic fields. In this study, the situation regarding the m...

2016
Yun Ni Xia Wang Wei Tao Si-Cong Zhu Kai-Lun Yao

By performing first-principle quantum transport calculations, we studied the electronic and transport properties of zigzag α-graphyne nanoribbons in different magnetic configurations. We designed the device based on zigzag α-graphyne nanoribbon and studied the spin-dependent transport properties, whose current-voltage curves show obvious spin-polarization and conductance plateaus. The interesti...

2015
Chih-Cheng Lu Jeff Huang

A new class of tri-axial miniature magnetometer consisting of a planar fluxgate structure with an orthogonal ferromagnetic fluxguide centrally situated over the magnetic cores is presented. The magnetic sensor possesses a cruciform ferromagnetic core placed diagonally upon the square excitation coil under which two pairs of pick-up coils for in-plane field detection are allocated. Effective pri...

2018
Homero Rivas Ignacio Robles Francisco Riquelme Marcelo Vivanco Julio Jiménez Boris Marinkovic Mario Uribe

OBJECTIVE To evaluate a new magnetic surgical system during reduced-port laparoscopic cholecystectomy in a prospective, multicenter clinical trial. BACKGROUND Laparoscopic instrumentation coupled by magnetic fields may enhance surgeon performance by allowing for shaft-less retraction and mobilization. The movements can be performed under direct visualization, generating different angles of tr...

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