scholarly journals The Influence of Measurement Methodology on the Accuracy of Electrical Waveform Distortion Analysis

2018 ◽  
Vol 18 (2) ◽  
pp. 72-78 ◽  
Author(s):  
Jacek Bartman ◽  
Bogdan Kwiatkowski
Keyword(s):  
Measurement Methods ◽  
Signal Theory ◽  
Voltage Waveform ◽  
Creation Process ◽  
Distortion Analysis ◽  
Waveform Distortion ◽  
Measurement Methodology ◽  
The Creation

Abstract The present paper covers a review of documents that specify measurement methods of voltage waveform distortion. It also presents measurement stages of waveform components that are uncommon in the classic fundamentals of electrotechnics and signal theory, including the creation process of groups and subgroups of harmonics and interharmonics. Moreover, the paper discusses selected distortion factors of periodic waveforms and presents analyses that compare the values of these distortion indices. The measurements were carried out in the cycle per cycle mode and the measurement methodology that was used complies with the IEC 61000-4-7 norm. The studies showed significant discrepancies between the values of analyzed parameters.

How To Write A Narration

2019 ◽  
Vol 7 (4) ◽  
pp. 43-49
Author(s):  
Katyaa Nakova-Tahchieva
Keyword(s):  
Research Paper ◽  
Fifth Grade ◽  
Artistic Creation ◽  
Creation Process ◽  
Literature Education ◽  
The Creation ◽  
Education Process

The present work is part of a research paper for which I extend my heartfelt thanks to Assoc. Prof. Dr. Valko Kanev. It examines some specifics of the artistic creation process that lead to the creation of one of the types of written student texts - the narration. Its variations - "narration by imagination" and "narration by set supports" are regulated in the new fifth grade curriculum. The requirements for writing a narration and the exemplary thematic curriculum of optional literature classes in the 7-tgrade have proven to be applicable in the literature education process.

Research of Simulation in the Main Circuit of Static Var Generator Based on Cascade H-Bride

2013 ◽  
Vol 392 ◽  
pp. 409-412
Author(s):  
Xian Bin Dai ◽  
Xiao Hua Yuan ◽  
Wei Du
Keyword(s):  
Output Voltage ◽  
Power Index ◽  
Matlab Simulation ◽  
Voltage Waveform ◽  
Distortion Factor ◽  
Harmonic Content ◽  
Three Phase ◽  
Static Var Generator ◽  
Waveform Distortion ◽  
Working Principle

This paper introduces the working principle of the research of simulation in the main circuit of Static Var Generator based on Cascade H-Bride and takes the three-phase Static Var Generator based on cascade H-Bride with rated capacity 10kVar,rated voltage 380V for example to proceed the MATLAB simulation. The research shows that the more amount of cascade H-Bride, the more number of output voltage levels in the main circuit of Static Var Generator, the smaller value of voltage waveform distortion factor, and the less harmonic content be inject in electric network, which improves power index.

Mandelstam: The Realm of Unexpectedness

2021 ◽  
Vol 64 (2) ◽  
pp. 62-83
Author(s):  
Svetlana S. Neretina
Keyword(s):  
Middle Ages ◽  
Speech Act ◽  
Classical Antiquity ◽  
Logical Framework ◽  
Creation Process ◽  
The Real ◽  
Logical Construction ◽  
The World ◽  
The Creation ◽  
The Middle Ages

In the essay “Conversation about Dante,” Mandelstam described logic, which he defined as the “realm of unexpectedness,” which is unlike any everyday logical construction. Based on the analysis of Mandelstam’s text, it is assumed that we are talking about a tropology that arose in the Middle Ages, the principles of which can be derived from studies of St. Augustine’s treatise De Dialectica and Petrus Сomestor’s Historia Scholastica. It is this triple commonwealth (Augustine – Comestor – Dante, read by Mandelstam) that creates the multilayered logical framework of the work. Augustine created a completely different dialectic than in classical antiquity. Augustine considers dialectics as an art of discussion and describes the real steps that contribute to the emergence of speech, which corresponds to Mandelstam’s concept of conversation. According to Augustine, at the basis of any speech, is a trope-turn. In the article, attention is drawn to the sound nature of creation process. This logic, used in explaining the creation of the world according to the logos/word (tropology), assumes that, at the basis of the speech act, there is no the word as a unit of speech, but the sound itself – the sound, which was considered initially equivocal (ambiguous). In the process of pronounciation, the sound could turn into its opposite and could change the meaning of speech if the context has been changed. Dante expressed the meaning of tropology in practice. Mandelstam wrote that he had chosen Dante for the conversation (between poet and poet) “because he is the greatest and indisputable master of reversible and reversing poetic substance.” Mandelstam saw Dante as the Descartes of metaphor.

Direct imaging of direction-controlled molecular rotational wave packets created by a polarization-skewed double-pulse

2020 ◽  
Vol 22 (19) ◽  
pp. 10853-10862
Author(s):  
Kenta Mizuse ◽  
Naoya Sakamoto ◽  
Romu Fujimoto ◽  
Yasuhiro Ohshima
Keyword(s):  
High Resolution ◽  
Wave Packets ◽  
Double Pulse ◽  
Direct Imaging ◽  
Creation Process ◽  
Rotational Wave ◽  
The Creation

High-resolution molecular movies of direction-controlled rotational wave packets are reported, providing insights into the creation process and detailed dynamics of wave packets.

scholarly journals 3D Modelling, Animation and Simulation of Mammal’s Migration Across Roads

2016 ◽  
Vol 12 (1) ◽  
pp. 27-33
Author(s):  
Jozef Talapka ◽  
Ján Hlubík ◽  
Patrik Kamencay ◽  
Róbert Hudec
Keyword(s):  
Data Collection ◽  
Efficient Method ◽  
Road Construction ◽  
3D Modelling ◽  
Traffic Networks ◽  
Creation Process ◽  
New Methods ◽  
The Creation

Abstract The presented article is dealing with the new methods which are designated for data collection of mammals migrating across traffic networks. Nowadays, road construction and securing of older roads is usually accompanied by finding new solutions. Because of lack of collected data we have new opportunities how we can collect this input. The article below describes the most efficient method which is suitable for the model creation, process of creation and issues which are connected with the creation of simulations.

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