Zobrazeno 1 - 8
of 8
pro vyhledávání: '"S. A. Manninen"'
Publikováno v:
Measurement Techniques. 60:600-603
A computational model of a magnetized segment of a pipeline created for the software of a new and promising method of internal pipe flaw detection is presented. Verification of the applicability of the computational model is performed on a test bench
Publikováno v:
Journal of Physics: Conference Series. 1745:012046
In the article the features of the physical processes modeling of the ultrasonic wave interaction to the metal structures are considered. The mathematical model for calculating the acoustic field of a single element of a 32-element electromagnetic ac
Autor:
S. A. Manninen, P. A. Kuznetsov
Publikováno v:
Measurement Techniques. 59:866-869
A method of detection and identification of defects inside pipes that have been magnetized by a variable current is considered. A three-dimensional computer model of a magnetized section of a pipeline is developed with the use of the method of finite
Publikováno v:
Measurement Techniques. 58:916-919
The results of calculations of the efficiency of the shielding of a photoelectronic spectrometer by amorphous alloys, designed to protect the instrument from the Earth’s magnetic field, are presented. The distribution of the magnetic induction insi
Autor:
O. N. Krivolapova, A. V. Spasskii, S. A. Manninen, S. N. Venediktov, S.A. Gudoshnikov, K. A. Trukhanov, P. A. Kuznetsov, O. S. Kruglov, Yu. B. Grebenshchikov
Publikováno v:
Measurement Techniques. 55:329-335
The design features and the results of tests of a prototype of a screening chamber based on MAR-1K roll magnetic material from tapes of amorphous magnetically soft alloys and intended for measurements when checking magnetically sensitive equipment an
Publikováno v:
Technical Physics. 50:794-798
An ion-optical scheme that allows for a considerable improvement of the sensitivity and speed of a mass spectrograph is suggested. These ends are accomplished by appropriately choosing the parameters of an electrostatic capacitor and the shape and lo
Autor:
O. V. Smirnov, S. A. Manninen, S. P. Parinov, B. M. Dubenskii, V. T. Kogan, R. A. Ketola, T. Kotiaho, O. S. Viktorova
Publikováno v:
Viktorova, O S, Kogan, V T, Manninen, S A, Kotiaho, T, Ketola, R, Dubenskii, B M, Parinov, S P & Smirnov, O V 2004, ' Utilization of a multimembrane inlet and a cyclic sudden sampling introduction mode in membrane inlet mass spectrometry ', Journal of the American Society for Mass Spectrometry, vol. 15, no. 6, pp. 823-831 . https://doi.org/10.1016/j.jasms.2004.02.002
Sudden sampling introduction into a membrane inlet mass spectrometer (MIMS) considerably improves the selectivity of the membrane inlet and is therefore applicable even for compounds with low permeabilities through a silicone membrane. In this study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::581ab29121cb9b55f6da5ef1c850ddf1
https://cris.vtt.fi/en/publications/fb64eeb7-8fd8-4587-aee5-98f4f8ce5891
https://cris.vtt.fi/en/publications/fb64eeb7-8fd8-4587-aee5-98f4f8ce5891
Publikováno v:
Journal of Analytical Chemistry. 58:942-943
The introduction of an air sample into a mass spectrometer with the use of a multimembrane system allows one to enrich the original matrix with gaseous and volatile organic components. Experimental tests show that discontinuous leakage with a three-m