The article presents an example of a device for focusing ultrasound through the air with the use of computer modeling technology and experimental data processing. The device is a matrix of 172 emitters operating at a ...The article presents an example of a device for focusing ultrasound through the air with the use of computer modeling technology and experimental data processing. The device is a matrix of 172 emitters operating at a frequency of 40 kHz, and the formation of the electronic unit of the ultrasound beam. Beam control on the software from your PC. Radiation pressure at the focal point was 57 Pa, and allows you to move light objects and feel the tactile effect of ultrasound. Present calculations the characteristics of the focused field and results of computer visualization of theoretical and experimental research.展开更多
A reinterpretation of the well-known formula of the 'mass-velocity relation' is exactlyderived from a new viewpoint with new concepts, such as the finiteness of the transmitting velocityof force (TVF), effecti...A reinterpretation of the well-known formula of the 'mass-velocity relation' is exactlyderived from a new viewpoint with new concepts, such as the finiteness of the transmitting velocityof force (TVF), effective action, and the coupled effect of the TVF for two EM fields, etc. Then, atrue meaning hidden in the Lorentz factor is exploited : i.e., when a charged particle is moving at aspeed v under an EM field, the effective action exerted on it by the field varies inversely with thespeed ratio β= v / U, where U is the TVF, which probably is equal to the propagation velocity ofEM field. The actual reduction of the effective action gives a false impression of mass gain.Accordingly, it is a major mistake in orientation to ascribe the (genuine) electrodynamics of movingbodies to any observation, or to any motion of an observer, while disregarding the facts of mutualaction.展开更多
Fighting financial crime is a highly institutionalised global governance task.At a time of crisis for many of the institutions of global governance,tackling money laundering and combatting terrorist financing through ...Fighting financial crime is a highly institutionalised global governance task.At a time of crisis for many of the institutions of global governance,tackling money laundering and combatting terrorist financing through global cooperation continues to be a priority for public officials.The global regime,if anything,is intensifying.This essay provides an overview of the regime’s development and addresses questions of design and implementation.It is structured around three sets of questions:(1)What does the regime look like and what is it for?(2)Who does the work?(3)And,in conclusion,what can we say about winners and losers?展开更多
文摘The article presents an example of a device for focusing ultrasound through the air with the use of computer modeling technology and experimental data processing. The device is a matrix of 172 emitters operating at a frequency of 40 kHz, and the formation of the electronic unit of the ultrasound beam. Beam control on the software from your PC. Radiation pressure at the focal point was 57 Pa, and allows you to move light objects and feel the tactile effect of ultrasound. Present calculations the characteristics of the focused field and results of computer visualization of theoretical and experimental research.
文摘A reinterpretation of the well-known formula of the 'mass-velocity relation' is exactlyderived from a new viewpoint with new concepts, such as the finiteness of the transmitting velocityof force (TVF), effective action, and the coupled effect of the TVF for two EM fields, etc. Then, atrue meaning hidden in the Lorentz factor is exploited : i.e., when a charged particle is moving at aspeed v under an EM field, the effective action exerted on it by the field varies inversely with thespeed ratio β= v / U, where U is the TVF, which probably is equal to the propagation velocity ofEM field. The actual reduction of the effective action gives a false impression of mass gain.Accordingly, it is a major mistake in orientation to ascribe the (genuine) electrodynamics of movingbodies to any observation, or to any motion of an observer, while disregarding the facts of mutualaction.
文摘Fighting financial crime is a highly institutionalised global governance task.At a time of crisis for many of the institutions of global governance,tackling money laundering and combatting terrorist financing through global cooperation continues to be a priority for public officials.The global regime,if anything,is intensifying.This essay provides an overview of the regime’s development and addresses questions of design and implementation.It is structured around three sets of questions:(1)What does the regime look like and what is it for?(2)Who does the work?(3)And,in conclusion,what can we say about winners and losers?
