Recently several investigators reported on various devices of generating cold plasma jets at atmospheric pressure. A pulsed source developed and reported, the pencil, is one them. This device capable a plume centimeters in length using DC high voltage source. In this study, kHz alternative current (18 kV-15 kHz) was applied to electrodes similar electrode system pencil instead direct pulse 2-3 ...

Two-dimensional (2D) materials are widely used in various applications due to their extraordinary properties. In particular, electrochemical stability, low electrical resistance, and huge specific surface area make them very interesting active for supercapacitors. Herein, flexible, biodegradable, low-cost supercapacitors introduced a simple way based on hand-drawing pencil traces or -rubbing mo...

Accepted 21 January 2003 . . . . . . . . . . . . . . . . . . . . . . . T he dual roles of neuropsychological testing in sports concussion are well established. Neuropsychological assessment may aid understanding of the brain structures and processes underlying concussion and the postconcussion syndrome. Although this is a primary goal of neuropsychologists working in sport concussion, a more im...

Modern education is hard to imagine without the use of e-learning tools, but still the transition from traditional “paper-and-pencil” examining to electronic exams is to some extent cautious. Although course administration and exam evaluation are much easier with learning management systems, there are concerns among teaching staff, that electronic tests simplify examination process compared to ...

In August 1990, tests were performed to investigate the usefulness of a horizontally scanning Doppler acoustic technique in shallow water. Comparisons of radial velocity estimates from a vertical fan beam versus a horizontally aimed pencil beam indicate no degradation attributable to multiple reflections from the surface and bottom. Further tests, in which ping-to-ping phase-coherent means are ...