Search results for: LOW TEMPERATURE SUPPLY

• JOURNAL OF LOW TEMPERATURE PHYSICS

  Journals

  ISSN: 0022-2291 , eISSN: 1573-7357

• Internet system for supply and temperature control in server rooms

  Publication

  • P. Kowalski
  • M. Czyżak

  - Poznan University of Technology Academic Journals. Electrical Engineering - Year 2016

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• Dedicated power supply subsystem for ultra-low noise preamplifiers

  Publication

  • K. Karpienko
  • Ł. Surażyński
  • P. Wierzba

  - Year 2013

  In field of electronics there is need for low-noise amplifiers. Noise have the most important influence on analog circuits. Therefore exist necessity to develop new ultra-low noise power supplies, which can cooperate with specified amplifiers and preamplifiers. It is very common that professional power supplies are very expensive and still have disadvantages. This paper proposes simple and inexpensive solution, which fulfill specific...

• The measurement of input power of power supply in network disturbed by low frequency distortions

  Publication

  • S. Galla
  • A. Szewczyk

  - Przegląd Elektrotechniczny - Year 2016

  In the paper authors present results of observation of input power changes versus harmonics amplitude in supply voltage of low-power power supply device. In the study, the electrical measurements supported with thermal imaging were used. The input circuit elements of studied device responsible for input power increase are pointed

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• Low temperature luminescence of KMgF3:Eu2+ crystal

  Publication

  • S. Mahlik
  • K. Wiśniewski
  • M. Grinberg
  • H. Seo

  - OPTICAL MATERIALS - Year 2011

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• Low-temperature high-pressure cryogelation of nanooxides

  Publication

  • V. Gun’ko
  • V. Zarko
  • E. Pakhlov
  • A. Matkovsky
  • O. Remez
  • B. Charmas
  • J. Skubiszewska-Zięba
  • B. Charmas

  - JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY - Year 2015

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• LOW TEMPERATURE PHYSICS

  Journals

  ISSN: 1063-777X , eISSN: 1090-6517

• Random components influence on the values characterising periodic disturbances in low voltage supply lines.

  Publication

  • S. Galla
  • B. Pałczyńska
  • L. Spiralski

  - Year 2004

  Analizowano wpływ składowych losowych na wielkości charakteryzujących zaburzenia okresowe w napięciu zasilania na przykładzie współczynnika zawartości harmonicznych (THD). Zaprezentowano sposób wyznaczania niepewności pomiaru współczynnika THD, uwzględniający występowanie korelacji pomiędzy składową podstawową i kolejnymi harmonicznymi napięcia sieci a także między poszczególnymi harmonicznymi. Przedstawiono analizę wyników z pomiarów...

• Evaluation of Low Temperature Properties of Rubberized Asphalt Mixtures

  Publication

  • M. Pszczoła
  • M. Jaczewski
  • C. Szydłowski
  • J. Judycki
  • B. Dołżycki

  - Procedia Engineering - Year 2017

  The paper presents low-temperature test results of asphalt mixtures designed with use of bitumen modified by crumb rubber and also SBS polymer. Laboratory tests were conducted on two types of asphalt mixtures for wearing course – stone matrix asphalt (SMA 8) and porous asphalt (PA 8). This paper presents results of the following laboratory tests at low temperatures: TSRST test, three point bending creep test, fracture toughness...

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• Criteria for selection of working fluid in low-temperature ORC

  Publication

  • D. Mikielewicz
  • J. Mikielewicz

  - Chemical and Process Engineering-Inżynieria Chemiczna i Procesowa - Year 2016

  The economics of an ORC system is strictly linked to thermodynamic properties of the working fluid. A bad choice of working fluid could lead to a less efficient and expensive plant/generation unit. Some selection criteria have been put forward by various authors, incorporating thermodynamic properties, provided in literature but these do not have a general character. In the paper a simple analysis has been carried out which resulted...

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