Two solid-state bipolar Marx modulators are compared in terms of semiconductors overvoltage tolerance capability in abnormal operating conditions such as switching synchronization failure. Simulation results are presented for 4 stages of two Marx circuits using 500 V per stage with 1 kHz bipolar pulse repetition rate, with 5 μs pulse width and 10 μs relaxation time into resistive load.

In a well-known passage from the Eighteenth Brumaire Karl Marx famously formulates the role of Rome in the French Revolution as an instance of history repeating itself: " Men make their own history , but they do not make it just as they please; they do not make it under circumstances chosen by themselves, but under circumstances directly encountered, given and transmitted from the past. The tra...

This paper presents comprehensive analytical, numerical and experimental research of the compact integrated high-power pulse generation forming system based on flux compression generator electro-explosive fuse. The includes analysis presented solution, starting from individual components studies, i.e., separate tests in field conditions fuse laboratory test, through formulation extended quasi-e...

This article is part of a For-Discussion-Section of Methods of Information in Medicine about the paper "Computational Electrocardiography: Revisiting Holter ECG Monitoring" written by Thomas M. Deserno and Nikolaus Marx. It is introduced by an editorial. This article contains the combined commentaries invited to independently comment on the paper of Deserno and Marx. In subsequent issues the di...

BACKGROUND The purpose of this study was to assess postsurgical outcomes in active patients after primary repair of acute and chronic proximal hamstring tears. HYPOTHESIS Surgical treatment of both acute and chronic proximal hamstring avulsion injuries would result in improved patient outcomes using validated outcome scores and a hamstring-specific questionnaire, and operative repair of these...

Despite his conviction on a morals charge involving a boy, the early German Social Democrat Johann Baptist von Schweitzer went on to have a successful political career. His life furnishes the context to present remarks by his political opponents Marx and Engels, which reveal their deep-seated homophobia. It is pointed out that this has been glossed over by the translations of the recently publi...

In January 1848, 160 years ago, Karl Marx added the finishing touches to a remarkable document, The Communist Manifesto. Umberto Eco has recently commended the admirable literary style and poetic qualities of this, probably the most influential political pamphlet ever written. But more than this, we should note again its author’s amazing prescience – prescient in terms of anticipating the main ...