Search results for: alpha waves

• The Pharos of Alpha Omega Alpha-Honor Medical Society. Alpha Omega Alpha

  Journals

  ISSN: 0031-7179

• Alpha Psychiatry

  Journals

  eISSN: 2757-8038

• Extreme waves and wave events in the Baltic Sea

  Publication

  • M. Paprota
  • J. Przewłócki
  • W. Sulisz
  • B. Swerpel

  - Year 2003

  W pracy przedstawiono wyniki pomiarów szeregów czasowych falowania uzyskanych z boi pomiarowych, umieszczonych w kilku miejscach linii brzegowej Morza Bałtyckiego. Rozważano wpływ czasu trwania sztormu i kierunku wiatru na powstawanie pojedynczych oraz grup fal ekstremalnych. Przeprowadzono statystyczną analizę takich fal, zwracając szczególną uwagę na rozkłady ich wysokości. Dla wybranych realizacji przeprowadzono analizę spektralną...

• JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS

  Journals

  ISSN: 0920-5071 , eISSN: 1569-3937

• Orthodontic Waves

  Journals

  ISSN: 1344-0241 , eISSN: 1878-1837

• Water Waves

  Journals

  ISSN: 2523-367X , eISSN: 2523-3688

• SHOCK WAVES

  Journals

  ISSN: 0938-1287 , eISSN: 1432-2153

• Waves Along Fractal Coastlines: From Fractal Arithmetic to Wave Equations

  Publication

  • M. Czachor

  - ACTA PHYSICA POLONICA B - Year 2019

  Beginning with addition and multiplication intrinsic to a Koch-type curve, we formulate and solve wave equation describing wave propagation along a fractal coastline. As opposed to examples known from the literature, we do not replace the fractal by the continuum in which it is embedded. This seems to be the first example of a truly intrinsic description of wave propagation along a fractal curve. The theory is relativistically...

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• Nonlinear Excitation of the Non-Wave Perturbations by the Magnetoacoustic Waves in the Non-Isentropic Plasma

  Publication

  • A. Perelomova

  - Archives of Acoustics - Year 2018

  Nonlinear excitation of slow modes by the planar magnetosonic perturbations in a plasma is discussed. Plasma is an open system due to radiation and external heating. This may stipulate enhancement of wave perturbations and hence the acoustical activity of plasma. Plasma is assumed to be a homogeneous ideal gas with infinite electrical conductivity. The straight magnetic field is orthogonal to the velocity of fluid’s...

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• Wave Frequency Effects on Damage Imaging in Adhesive Joints Using Lamb Waves and RMS

  Publication

  • E. Wojtczak
  • M. Rucka

  - Materials - Year 2019

  Structural adhesive joints have numerous applications in many fields of industry. The gradual deterioration of adhesive material over time causes a possibility of unexpected failure and the need for non-destructive testing of existing joints. The Lamb wave propagation method is one of the most promising techniques for the damage identification of such connections. The aim of this study was experimental and numerical research on...

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• Analysis of start energy of Stirling engine type alpha

  Publication

  • J. Kropiwnicki

  - Archives of Thermodynamics - Year 2019

  The Stirling engine type alpha is composed of two cylinders (expansion space E and compression space C), regenerator that forms the space between the cylinders and the buffer space (under the pistons). Before the start-up and as a result of long-term operation, the average pressure in the working space (above the pistons) and in the buffer space is the same. However, in the initial phase of operation, the average pressure in the...

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• Continuous wave methods applied in determining the velocity of fast ultrasonic waves in saturated porous media

  Publication

  • A. Skumiel
  • M. Kaczmarek

  - MEASUREMENT SCIENCE & TECHNOLOGY - Year 1993

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• Three-dimensional structure of wave-induced momentum flux in irrotational waves in combined shoaling-refraction conditions

  Publication

  • A. Herman

  - COASTAL ENGINEERING - Year 2006

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• Application of Stirling Engine Type Alpha Powered by the Recovery Energy on Vessels

  Publication

  • J. Kropiwnicki

  - Polish Maritime Research - Year 2020

  The Stirling engine is a device, in which thermal energy is transformed into mechanical without a contact between the heat carrier, and the working gas closed in the engine. Mentioned feature makes this type of engine very attractive for the use of the recovery energy, taken from other heat devices. One of the potential applications of Stirling engines is the use of thermal energy generated in the ship's engine room for producing...

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• Human proteinase 3 resistance to inhibition extends to alpha‐2 macroglobulin

  Publication

  • K. N’Guessan
  • R. Grzywa
  • S. Seren
  • G. Gabant
  • M. Juliano
  • M. Moniatte
  • A. van
  • J. Bieth
  • C. Kellenberger
  • F. Gauthier... and 5 others

  - FEBS Journal - Year 2020

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• FPGA realization of an improved alpha max plus beta min algorithm

  Publication

  • R. Smyk
  • M. Czyżak

  - Poznan University of Technology Academic Journals. Electrical Engineering - Year 2014

  The generalized improved version of the alpha max plus beta min square-rooting algorithm and its realization in the Field Programmable Gate Array (FPGA) are presented. The algorithm computes the square root to calculate the approximate magnitude of a complex sample. It is especially useful for pipelined calculations in the DSP. In case of four approximation regions it is possible to reduce the peak error form 3.95% to 0.33%. This...

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• New source of the thermostable alpha-glucosidase suitable for single stepstarch processing

  Publication

  • A. Zdziebło
  • J. Synowiecki

  - FOOD CHEMISTRY - Year 2002

  Zbadana wewnątrzkomórkowa termostabilna alfa-glukozydaza z Thermus thermo-philus przejawia największą aktywność w 85 C przy pH 6.2. Aktywność enzymu po 5 h inkubacji w 75 C (pH 6.2) prawie nie ulega zmianie a okres połowicznej inaktywacji w 85 C wynosi 2 h. Właściwości te wskazują na przydatność wymienionego enzymu w jednoetapowej hydrolizie skrobi.

• Using Alpha-beta filtration for robustness improvement of a quadrocopter positioning system

  Publication

  • A. Golijanek-Jędrzejczyk
  • L. Rafiński
  • S. Szczesny

  - Poznan University of Technology Academic Journals. Electrical Engineering - Year 2015

  Quadrocopter is an unmanned aerial vehicle (UAV) platform. The position of the robot is determined based on readings from an accelerometer and a gyroscope, but the measurement signals contain broadband noise. This article describes a solution for filtering out the noise based on an Alpha – beta filter. It also presents the methodology of designing and implementing such a filter for noise cancellation in measurement signals from...

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• Archaeology in Wales

  Journals

  ISSN: 0306-7629

• POETRY WALES

  Journals

  ISSN: 0032-2202

• Waves in Random and Complex Media

  Journals

  ISSN: 1745-5030 , eISSN: 1745-5049

• COMBUSTION EXPLOSION AND SHOCK WAVES

  Journals

  ISSN: 0010-5082 , eISSN: 1573-8345

• JOURNAL OF INFRARED AND MILLIMETER WAVES

  Journals

  ISSN: 1001-9014

• Źródła idei twórczych Ralpha Erskine'a

  Publication

  • R. Idem

  - Year 2016

  Publikacja przybliża biografię i projekty Ralpha Erskine'a, analizując źródła jego idei twórczych. Ralph Erskine (1914-2005) to angielski architekt, który przez większość swojego życia mieszkał i pracował w Szwecji. Zasłynął ze swego prospołecznego i proekologicznego podejścia do architektury. Źródeł jego idei twórczych trzeba poszukiwać w domu rodzinnym i szkole. Rodzice Erskine’a byli socjalistami i zwolennikami Towarzystwa Fabiańskiego....

• Cloning of the thermostable alpha-amylase gene from Pyrococcus woesei in Escherichia coli.

  Publication

  • B. Grzybowska
  • P. Szweda
  • J. Synowiecki

  - Year 2004

  Gen kodujący alfa-amylazę z Pyrococcus woesei klonowano do plazmidów pET21d(+)lub pYTB2, którymi transformowano komórki Escherichia coli. Otrzymana rekombinantowa alfa amylaza wykazuje maksymalną aktywność przy pH 5.6 w temperaturze 95 stC i przejawia około 24 % początkowej aktywności nawet po 2 godz. inkubacji w 120 stC. Duża termostabilność otrzymanego preparatu świadczy o jego przydatności do enzymatycznego upłynniania skrobi.

• WAVE MOTION

  Journals

  ISSN: 0165-2125 , eISSN: 1878-433X

• Crack monitoring in concrete beams under bending using ultrasonic waves and coda wave interferometry: the effect of excitation frequency on coda

  Publication

  • M. Knak
  • E. Wojtczak
  • M. Rucka

  - Year 2024

  Concrete is one of the most widely used construction materials in the world. In recent years, various non-destructive testing (NDT) and structural health monitoring (SHM) techniques have been investigated to improve the safety and control of the current condition of concrete structures. This study focuses on micro-crack monitoring in concrete beams. The experimental analysis was carried out on concrete elements subjected to three-point...

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• Improved magnitude estimation of complex numbers using alpha max and beta min algorithm

  Publication

  • R. Smyk
  • M. Czyżak

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2016

  The paper presents an improved algorithm for calculating the magnitude of complex numbers. This problem, which is a special case of square rooting, occurs for example, in FFT processors and complex FIR filters. The proposed method of magnitude calculation makes use of the modified alpha max and beta min algorithm. The improved version of the algorithm allows to control the maximum magnitude approximation error by using an adequate...

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• Biological and psychological components of depression in patients receiving IFN-alpha therapy for hepatitis C

  Publication

  • M. Krzysztof
  • I. Małgorzata
  • F. Dorota
  • H. Tomasz
  • P. Tomasz

  - Advances in Clinical and Experimental Medicine - Year 2019

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• Investigations of the influence of Am-241 photons on the measured alpha particle response of luminescent materials

  Publication

  • A. Mrozik
  • P. Bilski
  • W. Gieszczyk
  • Y. Zorenko
  • V. Gorbenko

  - RADIATION MEASUREMENTS - Year 2020

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• Effects of water level and grassland management on alpha and beta diversity of birds in restored wetlands

  Publication

  • M. Żmihorski
  • T. Pärt
  • T. Gustafson
  • Å. Berg

  - JOURNAL OF APPLIED ECOLOGY - Year 2016

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• The Escherichia coli RNA polymerase alpha subunit and transcriptional activation by bacteriophage lambda CII protein.

  Publication

  • M. Gabig
  • M. Obuchowski
  • A. Ciesielska
  • B. Latała
  • A. Wegrzyn
  • M. Thomas
  • G. Wegrzyn

  - Acta Biochimica Polonica - Year 1998

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• Study of impurities in alpha-Al 2 O 3 powders and crystals using EPR spectroscopy

  Publication

  • D. Kulig
  • W. Gieszczyk
  • I. Stefaniuk
  • I. Rogalska
  • B. Marczewska
  • P. Bilski

  - CHINESE JOURNAL OF PHYSICS - Year 2017

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• Range-based method of alpha-particle spectrometry using LiF fluorescent nuclear track detectors

  Publication

  • P. Bilski
  • B. Marczewska
  • M. Sankowska
  • W. Gieszczyk
  • J. Mietelski

  - Measurement - Year 2020

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• Phase Transitions and Structural Changes in DPPC Liposomes Induced by a 1-Carba-Alpha-Tocopherol Analogue

  Publication

  • G. Neunert
  • J. Tomaszewska-Gras
  • A. Baj
  • M. Gauza-Włodarczyk
  • S. Witkowski
  • K. Polewski

  - MOLECULES - Year 2021

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• On the Identification of $$\alpha $$ α -Asynchronous Cellular Automata in the Case of Partial Observations with Spatially Separated Gaps

  Publication

  • W. Bołt
  • B. Wolnik
  • J. Baetens
  • B. De

  - Year 2016

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• FeCl3-Modified Carbonaceous Catalysts from Orange Peel for Solvent-Free Alpha-Pinene Oxidation

  Publication

  • A. Kamińska
  • P. Miądlicki
  • K. Kiełbasa
  • J. Serafin
  • J. Sreńscek-Nazzal
  • R. Wróbel
  • A. Wróblewska

  - Materials - Year 2021

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• INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES

  Journals

  ISSN: 0195-9271

• Journal of Infrared Millimeter and Terahertz Waves

  Journals

  ISSN: 1866-6892 , eISSN: 1866-6906

• Implementation of magnitude calculation of complex numbers using improved alpha max plus beta min algorithm

  Publication

  • R. Smyk
  • M. Czyżak

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2016

  The paper presents the hardware implementation of the improved alpha max plus beta min algorithm for calculating the magnitude of complex numbers. This version of the algorithm requires the general division which is performed using a noniterative multiplicative division algorithm. We analyze in detail the division algorithm, its error and the impact of finite word-length signal representations on the assumed total computation error....

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• Population-based case-control study of alpha 1-antitrypsin and SLC11A1 in Crohn's disease and ulcerative colitis.

  Publication

  • R. Kotlowski
  • C. Bernstein
  • M. Silverberg
  • D. Krause

  - INFLAMMATORY BOWEL DISEASES - Year 2008

  Background: Crohn’s disease (CD) and ulcerative colitis (UC) are chronic inflammatory diseases of the digestive tract. Genetic factors and an abnormal immune response to infections are suspected to be involved in inflammatory bowel diseases. Methods: In the present study 300 blood samples from CD patients (n 100), UC patients (n 100), and healthy controls (n 100) were taken from a population-based case-control study. PCR assays...

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• Alpha-Revista de Artes Letras y Filosofia

  Journals

  ISSN: 0718-2201

• PREDICTION OF SHIP MOTIONS IN IRREGULAR WAVES BASED ON RESPONSE AMPLITUDE OPERATORS EVALUATED EXPERIMENTALLY IN NOISE WAVES

  Publication

  • S. Bielicki

  - Polish Maritime Research - Year 2021

  The most common methods for predicting ship roll motions in a specified sea state are direct measurements of motions in a representative irregular wave realisation (time domain) or calculations of motions from response amplitude operators (RAOs) in the frequency domain. The result of the first method is valid only for the tested sea state, whilst the second method is more flexible but less accurate. RAO-based predictions are calculated...

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• Short ultrasonic waves in cancellous bone

  Publication

  • M. Kaczmarek
  • J. Kubik
  • M. Pakula

  - ULTRASONICS - Year 2002

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• Stochastic approach to movements of a multihull on waves

  Publication

  • A. Królicka-Gałązka

  - Year 2008

  W artykule przedstawiono metodę wyznaczania różniczkowych równań ruchu.Układ równań różniczkowych został przedstwaiony dla ruchów antysymetrycznych jednoski wielokadłubowej (poprzeczne ruchy liniowe, poprzeczne ruchy kątowe, poziome ruchy kątowe). Dla tych ruchów zbudowano stochastyczne równania różniczkowe.

• Acceleration waves in the nonlinear micromorphic continuum

  Publication

  • V. Eremeev
  • L. Lebedev
  • M. Cloud

  - MECHANICS RESEARCH COMMUNICATIONS - Year 2018

  Within the framework of the nonlinear elastic theory of micromorphic continua we derive the conditions for propagation of acceleration waves. An acceleration wave, also called a wave of weak discontinuity of order two, can be treated as a propagating nonmaterial surface across which the second derivatives of the placement vector and micro-distortion tensor may undergo jump discontinuities. Here we obtain the acoustic tensor for...

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• Thermoluminescent response of differently doped lithium magnesium phosphate (LiMgPO4, LMP) crystals to protons, neutrons and alpha particles

  Publication

  • W. Gieszczyk
  • P. Bilski
  • M. Kłosowski
  • T. Nowak
  • L. Malinowski

  - RADIATION MEASUREMENTS - Year 2018

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• Coarse-grained model of the native cellulose $$\hbox {I}\alpha$$ and the transformation pathways to the $$\hbox {I}\beta$$ allomorph

  Publication

  • A. Poma
  • M. Chwastyk
  • M. Cieplak

  - CELLULOSE - Year 2016

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• Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene

  Publication

  • J. Sreńscek-Nazzal
  • A. Kamińska
  • P. Miądlicki
  • A. Wróblewska
  • K. Kiełbasa
  • R. Wróbel
  • J. Serafin
  • B. Michalkiewicz

  - Materials - Year 2021

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• Physics of Wave Phenomena

  Journals

  ISSN: 1541-308X , eISSN: 1934-807X