1. |
Kiełczyński P., Szymański P.♦, Szalewski M., Wieja K., Balcerzak A., Ptasznik S.♦, Application of Density Measurements for Discrimination and Evaluation of Chemical Composition of Different Types of Mechanically Separated Meat (MSM),
Molecules, ISSN: 1420-3049, DOI: 10.3390/molecules27217600, Vol.27, pp.1-13, 2022Streszczenie: At present, the problem of identifying and controlling different types of Mechanically
Separated Meat (MSM) is a very important practical issue in the meat industry. To address this
challenge, the authors propose a new, analytical method for the discrimination and characterization
of MSM that uses density measurements. The method proposed by the authors, in contrast to the analytical methods existing so far, is rapid, non-destructive, relatively simple and can be computerized.
The density measurements of meat samples were conducted with a modified pycnometric method.
Statistically significant (p < 0.01) differences were found in the evaluated mean values of density
for all investigated types of meat. Subsequently, the density measurements were correlated with
the physicochemical properties of meat samples. A high correlation coefficient was found between
the density of meat samples and the content of protein, sodium and fat. The authors have proven
that density measurements allow for rapid discrimination of various types of MSM, and can also be
effectively used to determine the chemical composition of MSM samples, e.g., the content of protein,
fat and sodium.
Słowa kluczowe: Meat density; Mechanically Separated Meat (MSM); protein content; fat content; Sodium
(Na) content; Calcium content (Ca) Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szymański P. | - | inna afiliacja | Szalewski M. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 140p. |
2. |
Wieja K., Kiełczyński P., Szymański P.♦, Szalewski M.♦, Balcerzak A., Ptasznik S.♦, Identification and investigation of mechanically separated meat (MSM) with an innovative ultrasonic method,
Food Chemistry, ISSN: 0308-8146, DOI: 10.1016/j.foodchem.2020.128907, Vol.348, pp.128907-1-9, 2021Streszczenie: An innovative analytical ultrasonic method for identification and investigation of Mechanically Separated Meat (MSM) samples is presented. To this end, the ultrasonic wave velocity (f = 5 MHz) in the investigated meat samples was measured. The measured ultrasonic velocity ranged from 1553.4 to 1589.9 m/s. The investigations were performed for: 1) minced hand deboned chicken fillets, 2) low pressure MSM from chicken carcasses, 3) low pressure MSM from chicken collarbones, 4) high pressure MSM from chicken carcasses and 5) high pressure MSM from chicken collarbones. Statistically significant (p < 0.001) differences in the ultrasonic velocity were observed for each of investigated kinds of meat. High significant correlations were found between the ultrasonic velocity and the content of protein, fat, sodium and density of the investigated meat. The applicability of the developed ultrasonic method for identifying various kinds of meat and to determine the content of protein, fat, sodium and density was demonstrated. Słowa kluczowe: physicochemical parameters, mechanically separated meat, ultrasonic velocity, protein content, calcium content, fat content Afiliacje autorów:
Wieja K. | - | IPPT PAN | Kiełczyński P. | - | IPPT PAN | Szymański P. | - | inna afiliacja | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 200p. |
3. |
Balcerzak A., Kiełczyński P., Szalewski M.♦, Wieja K., SAW sensor with Langmuir-Blodgett layer for detection of benzene and its derivatives,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.24425/aoa.2021.136557, Vol.46, No.1, pp.25-30, 2021Streszczenie: Vapors of benzene and its derivatives are harmful and toxic for human beings and natural environment. Their detection has fundamental importance. For this purpose authors propose surface acoustic wave (SAW) sensor with skeletonized layer deposited by Langmuir-Blodgett (L-B) method. This layer was obtained by depositing a binary equimolar mixture of 5-[[1,3-dioxo-3-[4-(1-oxooctadecyl) phenyl]propyl]amino]–1,3–benzenedicarboxylic acid with cetylamine. The skeletonized sensor layer has been obtained by removing cetylamine. Response of this sensor depends mainly of the electrical dipole momentum of molecule. Among the tested compounds, benzene has a zero dipole moment and gives the smallest sensor response, and nitrobenzene has the largest dipole moment and the sensor reacts most strongly to its vapor. Słowa kluczowe: SAW sensor, Langmuir-Blodget layer, vapors, benzene, benzene derivatives Afiliacje autorów:
Balcerzak A. | - | IPPT PAN | Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | inna afiliacja | Wieja K. | - | IPPT PAN |
| | 100p. |
4. |
Kiełczyński P., Szalewski M.♦, Balcerzak A., Wieja K., New theoretical model for mass sensitivity of Love wave sensors,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.24425/aoa.2021.136556, Vol.46, No.1, pp.17-24, 2021Streszczenie: In this work we analyse basic characteristics of Love wave sensors implemented in waveguide structures composed of a lossy viscoelastic surface layer deposited on a lossless elastic substrate. It has to be noted that Love wave sensors working at ultrasonic frequencies have the highest mass density sensitivity S among all known ultrasonic sensors, such as QCM, Lamb wave or Rayleigh wave sensors. In this paper we have established an exact analytical formula for the mass density sensitivity S of the Love wave sensors in the form of an explicit algebraic expression. Subsequently, using this developed analytical formula, we compared theoretically the mass density sensitivity S for various Love wave waveguide structures, such as: (1) lossy PMMA surface layer on lossless Quartz substrate and (2) lossy PMMA on lossless Diamond substrate. The performed analysis shows that the mass density sensitivity S (real and imaginary part) for a sensor with a structure PMMA on Diamond is five times higher than that of a PMMA on Quartz structure. It was found that the mass density sensitivity S for Love wave sensors increases with the increase of the ratio: bulk shear wave velocity in the substrate to bulk shear wave velocity in the surface layer. Słowa kluczowe: Love wave sensors, mass sensitivity, complex dispersion equation, viscoelastic layers Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 100p. |
5. |
Kiełczyński P., Szalewski M.♦, Balcerzak A., Wieja K., Dispersion curves of Love waves in elastic waveguides loaded with a Newtonian liquid layer of finite thickness,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.24425/aoa.2019.129738, Vol.45, No.1, pp.19-27, 2020Streszczenie: In this paper, the authors analyse the propagation of surface Love waves in an elastic layered waveguide (elastic guiding layer deposited on an elastic substrate) covered on its surface with a Newtonian liquid layer of finite thickness. By solving the equations of motion in the constituent regions (elastic substrate, elastic surface layer and Newtonian liquid) and imposing the appropriate boundary conditions, the authors established an analytical form of the complex dispersion equation for Love surface waves. Further, decomposition of the complex dispersion equation into its real and imaginary part, enabled for evaluation of the phase velocity and attenuation dispersion curves of the Love wave. Subsequently, the influence of the finite thickness of a Newtonian liquid on the dispersion curves was evaluated. Theoretical (numerical) analysis shows that when the thickness of the Newtonian liquid layer exceeds approximately four penetration depths 4δ of the wave in a Newtonian liquid, then this Newtonian liquid layer can be regarded as a semi-infinite half-space. The results obtained in this paper can be important in the design and optimization of ultrasonic Love wave sensors such as: biosensors, chemosensors and viscosity sensors. Love wave viscosity sensors can be used to assess the viscosity of various liquids, e.g. liquid polymers. Słowa kluczowe: Love waves, ultrasonic sensors, Newtonian liquid, penetration depth, biosensors, chemosensors, viscosity sensors Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 70p. |
6. |
Kiełczyński P., Szalewski M.♦, Balcerzak A., Wieja K., Impact of losses on Love wave propagation in multilayered composite structures loaded with a Newtonian liquid,
JOURNAL OF VIBRATION AND CONTROL, ISSN: 1077-5463, DOI: 10.1177/1077546320916041, Vol.26, No.23-24, pp.2221-2229, 2020Streszczenie: In this study, we analyze theoretically and numerically the properties of Love surface waves propagating in lossy multilayered composite waveguides, loaded on the upper surface with a Newtonian liquid. The propagation of Love surface waves was formulated in terms of a direct Sturm–Liouville problem. An analytical form of the complex dispersion equation of the Love surface wave was derived using the Thomson–Haskell transfer matrix method. By separating the complex dispersion equation into its real and imaginary parts, we obtained a set of two nonlinear algebraic equations, which were subsequently solved numerically. The effect of various physical parameters of the lossy viscoelastic waveguide on the velocity and attenuation of the Love surface wave was then analyzed numerically. It was found that because of the presence of losses in the analyzed waveguide, Love surface waves displayed a number of new original phenomena, such as resonant-like maxima in attenuation as a function of thicknesses h1 of the first viscoelastic surface layer and thickness h2 of the second elastic surface layer. These phenomena are completely absent in lossless waveguides. Słowa kluczowe: lossy waveguides, nondestructive testing of polymeric layered structures, Love surface waves, viscoelastic materials Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 70p. |
7. |
Kiełczyński P., Ptasznik S.♦, Szalewski M.♦, Balcerzak A., Wieja K., Rostocki A.J.♦, Application of ultrasonic methods for evaluation of high-pressure physicochemical parameters of liquids,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.24425/aoa.2019.128496, Vol.44, No.2, pp.329-337, 2019Streszczenie: An emerging ultrasonic technology aims to control high-pressure industrial processes that use liquids at pressures up to 800 MPa. To control these processes it is necessary to know precisely physicochemical properties of the processed liquid (e.g., Camelina sativa oil) in the high-pressure range. In recent years, Camelina sativa oil gained a significant interest in food and biofuel industries. Unfortunately, only a very few data characterizing the high-pressure behavior of Camelina sativa oil is available. The aim of this paper is to investigate high pressure physicochemical properties of liquids on the example of Camelina sativa oil, using efficient ultrasonic techniques, i.e., speed of sound measurements supported by parallel measurements of density. It is worth noting that conventional low-pressure methods of measuring physicochemical properties of liquids fail at high pressures. The time of flight (TOF) between the two selected ultrasonic impulses was evaluated with a cross-correlation method. TOF measurements enabled for determination of the speed of sound with very high precision (of the order of picoseconds). Ultrasonic velocity and density measurements were performed for pressures 0.1–660 MPa, and temperatures 3–30 °C. Isotherms of acoustic impedance Za, surface tension σ and thermal conductivity k were subsequently evaluated. These physicochemical parameters of Camelina sativa oil are mainly influenced by changes in the pressure p, i.e., they increase about two times when the pressure increases from atmospheric pressure (0.1 MPa) to 660 MPa at 30 °C. The results obtained in this study are novel and can be applied in food,and chemical industries. Słowa kluczowe: ultrasonic methods, speed of sound, acoustic impedance, surface tension, thermal conductivity, physicochemical properties Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) |
| | 70p. |
8. |
Kiełczyński P., Szalewski M.♦, Balcerzak A., Wieja K., Rostocki A.♦, Ptasznik S.♦, Evaluation of High-Pressure Thermophysical Parameters of the Diacylglycerol (DAG) Oil Using Ultrasonic Waves,
Food and Bioprocess Technology, ISSN: 1935-5130, DOI: 10.1007/s11947-016-1827-6, Vol.10, No.2, pp.358-369, 2017Streszczenie: Modeling of high-pressure technological processes in the food industry requires knowledge of thermophysical parameters of processed foodstuffs in a broad range of pressures and temperatures. However, the high-pressure thermophysical parameters of foodstuffs are very rarely published in the literature. Therefore, further research is necessary to achieve a deeper insight into the biophysical and thermophysical phenomena under pressure to provide better control of technological processes and optimize the effects of pressure. The essential goal of this work is to evaluate the impact of high pressure and temperature on the thermophysical parameters of liquid foodstuffs on the example of diacylglycerol (DAG) oil (which attracted recently a considerable attention from research and industrial communities due to its remarkable benefits for health), using ultrasonic wave velocity and density measurements. Isotherms of adiabatic and isothermal compressibility, isobaric thermal expansion coefficient, internal pressure, and thermal pressure coefficient versus pressure were evaluated, based on the measurement of the compressional ultrasonic wave velocity and density of DAG oil at high pressures (up to 500 MPa) and at various temperatures. The adiabatic compressibility is affected mostly by the changes of pressure, i.e., it grows about four times when the pressure increases from the atmospheric pressure (0.1 MPa) to 400 MPa at a temperature of 50 °C. By contrast, the internal pressure is a pronounced function of the temperature, i.e., it increases six times when the temperature rises from 20 to 50 °C at a pressure of a 200 MPa. To perform numerical calculations, it was convenient to introduce a Tammann–Tait type equation of state to approximate the measured density isotherms of the investigated DAG oil. The results obtained in this paper can be applied in modeling and optimization of high-pressure technological processes and processing of foodstuffs. Evaluation of high-pressure isotherms of the considered thermophysical parameters of the DAG oil is an original authors' contribution to the state-of-the-art. Słowa kluczowe: high-pressure food processing, diacylglycerols, thermophysical parameters, isothermal compressibility, isobaric thermal expansion coefficient, ultrasonic methods Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A. | - | Politechnika Warszawska (PL) | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 50p. |
9. |
Kiełczyński P., Ptasznik S.♦, Szalewski M.♦, Balcerzak A., Wieja K., Rostocki A.J.♦, Thermophysical properties of rapeseed oil methyl esters (RME) at high pressures and various temperatures evaluated by ultrasonic methods,
Biomass and Bioenergy, ISSN: 0961-9534, DOI: 10.1016/j.biombioe.2017.09.015, Vol.107, pp.113-121, 2017Streszczenie: Investigation of the high-pressure thermophysical properties of biofuels, e.g., bulk modulus, Surface tension, and viscosity is of paramount importance in fuel injection systems in diesel engines. Another crucial and dangerous phenomenon that may occur in biofuels at high pressures is phase transition (solidification), which can drastically increase the viscosity of the biofuel. This effect may hamper proper operation of the engine, especially under cold-start conditions. Unfortunately, the availability of highpressure thermophysical properties of biofuels is still limited. The goal of this paper is to investigate the impact of high pressures on thermophysical properties of biofuels on the example of rapeseed fatty acid methyl esters (RME) in a wide range of pressures (0:1 to 250 MPa) and temperatures (5 to 20 _C). To this end we employed innovative ultrasonic techniques, i.e., the Bleustein-Gulyaev surface acoustic waves for measuring RME viscosity, and ultrasonic bulk compressional waves for measuring sound velocity in RME and consequently evaluating RME thermophysical parameters, e.g., bulk modulus and surface tension. The viscosity of the measured RME displayed an abrupt increase at pressures: 260 MPa (t Ľ 20 _C), 230 MPa (t Ľ 15 _C), 190 MPa (t Ľ 10 _C), and 130 MPa (t Ľ 5 _C). Evidently it was a signature of the phase transition (solidification) occurring in the RME. The discovered high viscosity high-pressure phase in RME can be very detrimental for operation of modern common rail Diesel engines. Therefore, the results of research presented in this paper should be interesting for engineers and designers working with modern common rail Diesel engines using biofuels. Słowa kluczowe: Biofuels, Methyl esters, Phase transitions, Viscosity, Speed of sound, Ultrasonic methods, High pressure Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) | Szalewski M. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) |
| | 35p. |
10. |
Balcerzak A., Comparison of High-Pressure Behavior of Physicochemical Properties of the Di- and Triacylglycerols Established by Ultrasonic Methods,
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, ISSN: 0003-021X, DOI: 10.1007/s11746-017-3030-y, Vol.94, No.10, pp.1261-1268, 2017Streszczenie: Two samples of triacylglycerols i.e., olive oil and triolein, and one sample of diacylglycerol were investigated. In the course of compression, the density of the samples was determined by measurements of the change of piston position in a pressure chamber and volume correction due to chamber expansion under pressure. The speed of sound was evaluated from the time of flight of an ultrasonic impulse between emitting and receiving transducers placed in the high pressure chamber. The adiabatic compressibility, the intermolecular free length, the molar volume, the van der Waals' constant b and the surface tension were evaluated from the density, the speed of sound and the average molecular mass. All tested liquids undergo a high-pressure phase transition. Discontinuities in the measured isotherms of the physicochemical parameters of the investigated oils indicate the presence of high-pressure phase transitions. Moreover the time dependent change of pressure at constant volume during the phase transition was measured. The fundamental difference in the molecular structure of these acylglycerols influences their behavior significantly under high pressure. Słowa kluczowe: Acylglycerols, Physicochemical parameters, Ultrasonic measurements Afiliacje autorów:
| | 30p. |
11. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Propagation of ultrasonic Love waves in nonhomogeneous elastic functionally graded materials,
Ultrasonics, ISSN: 0041-624X, DOI: 10.1016/j.ultras.2015.10.001, Vol.65, pp.220-227, 2016Streszczenie: This paper presents a theoretical study of the propagation behavior of ultrasonic Love waves in nonhomogeneous functionally graded elastic materials, which is a vital problem in the mechanics of solids. The elastic properties (shear modulus) of a semi-infinite elastic half-space vary monotonically with the depth (distance from the surface of the material). The Direct Sturm–Liouville Problem that describes the propagation of Love waves in nonhomogeneous elastic functionally graded materials is formulated and solved by using two methods: i.e., (1) Finite Difference Method, and (2) Haskell-Thompson Transfer Matrix Method.
The dispersion curves of phase and group velocity of surface Love waves in inhomogeneous elastic graded materials are evaluated. The integral formula for the group velocity of Love waves in nonhomogeneous elastic graded materials has been established. The effect of elastic non-homogeneities on the dispersion curves of Love waves is discussed. Two Love wave waveguide structures are analyzed: (1) a nonhomogeneous elastic surface layer deposited on a homogeneous elastic substrate, and (2) a semi-infinite nonhomogeneous elastic half-space. Obtained in this work, the phase and group velocity dispersion curves of Love waves propagating in the considered nonhomogeneous elastic waveguides have not previously been reported in the scientific literature. The results of this paper may give a deeper insight into the nature of Love waves propagation in elastic nonhomogeneous functionally graded materials, and can provide theoretical guidance for the design and optimization of Love wave based devices. Słowa kluczowe: Ultrasonic Love waves, Functionally graded materials, Profiles of elastic constants, Direct Sturm–Liouville Problem, Group velocity Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 30p. |
12. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Inverse Method for Determining Profiles of Elastic Parameters in the Functionally Graded Materials using Love Waves,
ACTA ACUSTICA UNITED WITH ACUSTICA, ISSN: 1610-1928, DOI: 10.3813/AAA.918961, Vol.102, pp.428-435, 2016Streszczenie: This paper presents the use of SH (Shear Horizontal) surface Love waves to determine the distributions of elastic parameters in nonhomogeneous Functionally Graded Materials. The advantage of Love waves applied to investigate the elastic properties of materials is that the Love wave energy (in contrast to the other types of waves, e.g., plate Lamb waves) is concentrated in the vicinity of the surface layer. The penetration depth of the SH surface Love waves depends on the frequency. Therefore, Love waves are particularly suitable for investigating the profiles of the mechanical properties in nonhomogeneous Graded Materials. Direct Problem (Direct Sturm-Liouville Problem) that describes the propagation of Love waves in nonhomogeneous graded materials has been formulated and solved numerically by applying the Transfer Matrix Method. The Inverse Procedure (Inverse Sturm-Liouville Problem) for determining the distribution of elastic properties versus depth in the nonhomogeneous materials has been developed. Love wave dispersion curves in nonhomogeneous graded materials were evaluated numerically (synthetic data). Using the evaluated dispersion curves of Love waves and a developed Inverse Procedure the distributions of elastic shear coefficient as a function of depth (distance from the surface of the material into the bulk) in a heterogeneous surface layer deposited on a homogeneous substrate have been evaluated. Power type profiles (i.e., root square, linear and quadratic) of the shear elastic coefficient in the surface layer were considered. The results of this study can be useful in the investigation of elastic properties of Graded Materials in electronics as well as in geophysics and seismology. Słowa kluczowe: Love waves, Inverse Methods, Functionally Graded Materials, Elastic parameters, Sturm-Liouville Problem Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 25p. |
13. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J.♦, Siegoczyński R.M.♦, Ultrasonic Evaluation of Thermodynamic Parameters of Liquids Under High Pressure,
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, ISSN: 0885-3010, DOI: 10.1109/TUFFC.2015.007053, Vol.62, No.6, pp.1122-1131, 2015Streszczenie: In many technological processes (e.g., in the chemical, petrochemical, food, and plastics industries), liquids are subjected to high pressures and temperatures. Therefore, knowledge of their thermodynamic properties is essential for understanding, design, and control of the process technology. Direct evaluation of the thermodynamic parameters of liquids under high pressure, using conventional methods, is very difficult. Therefore, the application of these methods in industrial conditions, particularly in on-line control of the technological parameters of liquids, is practically impossible. Ultrasonic methods (e.g., sound speed measurements) are very suitable for this purpose because of their simplicity and accuracy. The sound velocity is closely related to numerous thermodynamic properties of liquids. The objective of this paper is to address the influence of temperature and pressure on the thermodynamic parameters of liquids, using the example of diacylglycerol (DAG) oil, employing ultrasonic methods. In this paper, we present ultrasonic velocity and density measurements (performed by the authors) in DAG oil over a range of pressures and temperatures. On the basis of experimental results (the sound velocity and liquid density versus pressure and temperature) a series of DAG oil thermodynamic parameters such as specific heat ratio, intermolecular free path length, Van der Waals constant b, surface tension, and effective Debye temperature were evaluated as functions of pressure and temperature. Słowa kluczowe: Thermodynamical properties of liquid, High pressure food processing, ultrasonic methods, sound velocity, surface tension Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) |
| | 30p. |
14. |
Trawiński Z., Wójcik J., Nowicki A., Olszewski R.♦, Balcerzak A., Frankowska E.♦, Zegadło A.♦, Rydzyński P.♦, Strain examinations of the left ventricle phantom by ultrasound and multislices computed tomography imaging,
Biocybernetics and Biomedical Engineering, ISSN: 0208-5216, DOI: 10.1016/j.bbe.2015.03.001, Vol.35, pp.255-263, 2015Streszczenie: The main aim of this study was to verify the suitability of the hydrogel sonographic model of the left ventricle (LV) in the computed tomography (CT) environment and echocardiography and compare the radial strain calculations obtained by two different techniques: the speckle tracking ultrasonography and the multislices computed tomography (MSCT). The measurement setup consists of the LV model immersed in a cylindrical tank filled with water, hydraulic pump, the ultrasound scanner, hydraulic pump controller, pressure measurement system of water inside the LV model, and iMac workstation. The phantom was scanned using a 3.5 MHz Artida Toshiba ultrasound scanner unit at two angle positions: 0° and 25°. In this work a new method of assessment of RF speckles’ tracking. LV phantom was also examined using the CT 750 HD 64-slice MSCT machine (GE Healthcare). The results showed that the radial strain (RS) was independent on the insonifying angle or the pump rate. The results showed a very good agreement, at the level of 0.9%, in the radial strain assessment between the ultrasound M-mode technique and multislice CT examination. The study indicates the usefulness of the ultrasonographic LV model in the CT technique. The presented ultrasonographic LV phantom may be used to analyze left ventricle wall strains in physiological as well as pathological conditions. CT, ultrasound M-mode techniques, and author's speckle tracking algorithm, can be used as reference methods in conducting comparative studies using ultrasound scanners of various manufacturers. Słowa kluczowe: Computed tomography, Echocardiography, Left ventricle, Speckles tracking, Strain, Ultrasound phantoms Afiliacje autorów:
Trawiński Z. | - | IPPT PAN | Wójcik J. | - | IPPT PAN | Nowicki A. | - | IPPT PAN | Olszewski R. | - | inna afiliacja | Balcerzak A. | - | IPPT PAN | Frankowska E. | - | Military Medical Institute (PL) | Zegadło A. | - | inna afiliacja | Rydzyński P. | - | inna afiliacja |
| | 15p. |
15. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Group and Phase Velocity of Love Waves Propagating in Elastic Functionally Graded Materials,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.1515/aoa-2015-0030, Vol.40, No.2, pp.273-281, 2015Streszczenie: This paper presents a theoretical study of the propagation behaviour of surface Love waves in nonhomogeneous functionally graded elastic materials, which is a vital problem in acoustics. The elastic properties (shear modulus) of a semi-infinite elastic half-space vary monotonically with the depth (distance from the surface of the material). Two Love wave waveguide structures are analyzed: 1) a nonhomogeneous elastic surface layer deposited on a homogeneous elastic substrate, and 2) a semi-infinite nonhomogeneous elastic half-space. The Direct Sturm-Liouville Problem that describes the propagation of Love waves in nonhomogeneous elastic functionally graded materials is formulated and solved 1) analytically in the case of the step profile, exponential profile and 1cosh2 type profile, and 2) numerically in the case of the power type profiles (i.e. linear and quadratic), by using two numerical methods: i.e. a) Finite Difference Method, and b) Haskell-Thompson Transfer Matrix Method.
The dispersion curves of phase and group velocity of surface Love waves in inhomogeneous elastic graded materials are evaluated. The integral formula for the group velocity of Love waves in nonhomogeneous elastic graded materials has been established. The results obtained in this paper can give a deeper insight into the nature of Love waves propagation in elastic nonhomogeneous functionally graded materials. Słowa kluczowe: surface Love waves, group velocity, phase velocity, functionally graded materials, profiles of elastic constants, direct Sturm-Liouville problem Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN |
| | 15p. |
16. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J.♦, Siegoczyński R.M.♦, Ptasznik S.♦, Application of ultrasonic wave celerity measurement for evaluation of physicochemical properties of olive oil at high pressure and various temperatures,
LWT-FOOD SCIENCE AND TECHNOLOGY, ISSN: 0023-6438, DOI: 10.1016/j.lwt.2014.01.027, Vol.57, pp.253-259, 2014Streszczenie: High-pressure processing is a powerful technology for food preservation. The knowledge of foods properties in the high-pressure range is important to develop and optimize such processes by means of mathematical modeling and simulation. Ultrasonic methods are rapid, non-invasive and can be used to characterize foods like edible oils (e.g., composition, purity, and quality assessment). In this paper, they were applied for the investigation of physicochemical properties of olive oil at high pressure at different temperatures. The sound wave velocity was measured by the pulse-transmission method and the corresponding oil density was additionally determined from the monitoring of sample volume change. Measurements were conducted in the pressure range up to 600 MPa, for temperatures from 20 to 50°C. Intermolecular free length, isothermal and adiabatic compressibility versus pressure were calculated using measured sound speed and density isotherms. Discontinuities in the measured isotherms of sound speed and density versus pressure indicate the presence of liquid-to-solid phase transitions. The kinetics of the liquid-to-solid phase transition was also investigated. The transformation times of olive oil augment with increasing temperature. This study can be broadened to other liquid foodstuffs to investigate the influence of temperature on their physicochemical properties at high pressure. Słowa kluczowe: Physicochemical properties, Intermolecular free length, Ultrasonic velocity, High-pressure food processing, Olive oils Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 35p. |
17. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Malanowski A.♦, Kościesza R.♦, Tarakowski R.♦, Rostocki A.J.♦, Siegoczyński R.M.♦, Determination of physicochemical properties of diacylglycerol oil at high pressure by means of ultrasonic methods,
Ultrasonics, ISSN: 0041-624X, DOI: 10.1016/j.ultras.2014.06.013, Vol.54, No.8, pp.2134-2140, 2014Streszczenie: The purpose of the paper is to address, using ultrasonic methods, the impact of temperature and pressure on the physicochemical properties of liquids on the example of diacylglycerol (DAG) oil. The paper presents measurements of sound velocity, density and volume of DAG oil sample in the pressure range from atmospheric pressure up to 0.6 GPa and at temperatures ranging from 20 to 50°C.
Sound speed measurements were performed in an ultrasonic setup with a DAG oil sample located in the high-pressure chamber. An ultrasonic method that uses cross-correlation method to determine the time-of-flight of the ultrasonic pulses through the liquid was employed to measure the sound velocity in DAG oil. This method is fast and reliable tool for measuring sound velocity. The DAG oil density at high pressure was determined from the monitoring of sample volume change. The adiabatic compressibility and isothermal compressibility have been calculated on the basis of experimental data. Discontinuities in isotherms of the sound speed versus pressure point to the existence of phase transitions in DAG oil. The ultrasonic method presented in this study can be applied to investigate the physicochemical parameters of other liquids not only edible oils. Słowa kluczowe: Ultrasonic methods, Sound velocity, Phase transitions, High pressure food processing, Physicochemical parameters Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Malanowski A. | - | inna afiliacja | Kościesza R. | - | inna afiliacja | Tarakowski R. | - | inna afiliacja | Rostocki A.J. | - | Politechnika Warszawska (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) |
| | 30p. |
18. |
Kiełczyński P., Szalewski M., Balcerzak A., Inverse procedure for simultaneous evaluation of viscosity and density of Newtonian liquids from dispersion curves of Love waves,
JOURNAL OF APPLIED PHYSICS, ISSN: 0021-8979, DOI: 10.1063/1.4891018, Vol.116, pp.044902-1-7, 2014Streszczenie: Simultaneous determination of the viscosity and density of liquids is of great importance in the monitoring of technological processes in the chemical, petroleum, and pharmaceutical industry, as well as in geophysics. In this paper, the authors present the application of Love waves for simultaneous inverse determination of the viscosity and density of liquids. The inversion procedure is based on measurements of the dispersion curves of phase velocity and attenuation of ultrasonic Love waves. The direct problem of the Love wave propagation in a layered waveguide covered by a viscous liquid was formulated and solved. Love waves propagate in an elastic layered waveguide covered on its surface with a viscous (Newtonian) liquid. The inverse problem is formulated as an optimization problem with appropriately constructed objective function that depends on the material properties of an elastic waveguide of the Love wave, material parameters of a liquid (i.e., viscosity and density), and the experimental data. The results of numerical calculations show that Love waves can be efficiently applied to determine simultaneously the physical properties of liquids (i.e., viscosity and density). Sensors based on this method can be very attractive for industrial applications to monitor on-line the parameters (density and viscosity) of process liquid during the course of technological processes, e.g., in polymer industry. Słowa kluczowe: Viscosity, Inverse problems, Wave attenuation, Mechanical waves, Viscosity measurements Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN |
| | 30p. |
19. |
Trawiński Z., Wójcik J., Nowicki A., Balcerzak A., Olszewski R.♦, Frankowska E.♦, Zegadło A.♦, Rydzyński P.♦, Assessment of left ventricle phantom wall compressibility by ultrasound and computed tomography methods,
HYDROACOUSTICS, ISSN: 1642-1817, Vol.17, pp.211-218, 2014Streszczenie: The present work concerns the sonographic model of the left ventricle (LV) examined in the Computed Tomography (CT) environment and compare radial strain calculations obtained by two different techniques: the speckle tracking ultrasonography and the Multislices Computed Tomography (MSCT). The Left Ventricular (LF) phantom was fabricated from 10% solution of the poly(vinyl alcohol) (PVA). Our model of the LV was driven by the computer- controlled hydraulic piston Super -Pump (Vivitro Inc., Canada) with adjustable fluid volumes. The stroke volume was set at of 24ml. The fluid pressure was changed within range of 0- 60 mmHg, and the pulse rate was of 60 cycles/per minute. The relationships between computer controlled left ventricular wall deformations and its visual izations of the echocardiographic and CT imaging, both in the normal and pathological conditions were examined. The difference of assessment the Radial Strain between two methods was not exceeding 1.1%. Afiliacje autorów:
Trawiński Z. | - | IPPT PAN | Wójcik J. | - | IPPT PAN | Nowicki A. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Olszewski R. | - | inna afiliacja | Frankowska E. | - | Military Medical Institute (PL) | Zegadło A. | - | inna afiliacja | Rydzyński P. | - | inna afiliacja |
| | 7p. |
20. |
Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J.♦, Siegoczyński R.M.♦, Thermodynamic Method for Measuring the B/A Nonlinear Parameter Under High Pressure,
ENGINEERING TRANSACTIONS (ROZPRAWY INŻYNIERSKIE), ISSN: 0867-888X, Vol.62, No.1, pp.5-15, 2014Streszczenie: The nonlinearity parameter B/A is a measure of the nonlinearity of the equation of state for a fluid. The nonlinearity parameter B/A is a physical parameter often used in acoustics, from underwater acoustics to biology and medicine. It can provide information about structural properties of the medium, internal pressure and inter-molecular spacing. The thermodynamic method has been applied for determination of B/A parameter in diacylglycerol (DAG) oil as a function of pressure at various temperatures. Isotherms of the density and phase velocity of longitudinal ultrasonic wave as a function of pressure have been measured. Using the thermo- dynamic method along with measured isotherms of sound speed and density, the nonlinearity parameter B/A (for DAG oil) was evaluated as a function of pressure (up to 220 MPa) at various temperatures ranging from 20 to 50◦C.
Słowa kluczowe: Nonlinearity parameter B/A, thermodynamic method, high pressure, longitudinal ultrasonic wave velocity Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Wieja K. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) |
| | 7p. |
21. |
Rostocki A.J.♦, Tarakowski R.♦, Kiełczyński P., Szalewski M., Balcerzak A., Ptasznik S.♦, The Ultrasonic Investigation of Phase Transition in Olive Oil up to 0,7 GPa,
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, ISSN: 0003-021X, DOI: 10.1007/s11746-013-2223-2, Vol.90, No.6, pp.813-818, 2013Streszczenie: This paper presents measurements of sound velocity and attenuation in olive oil, with known chemical composition, as a function of pressure, within the range of pressure up to 0.7 GPa. Dependencies of sound velocity, relative ultrasonic wave attenuation, volume, and adiabatic compressibility on pressure show discontinuities. This proves the existence of the first order phase transition in olive oil (liquid to solid-like phase transition). Rapid and large changes in relative attenuation testify to the existence of a phase transition in olive oil. Moreover, the kinetics of phase transition was also investigated. Measurement of acoustic wave velocity and relative attenuation in olive oil during the phase transition and in the high-pressure phase is a novelty. The results obtained can be useful in the development of new methods in food (edible oils) control, processing, and preservation. Słowa kluczowe: Vegetable oils, Sound velocity, Triacylglycerols, Phase transition, High pressure Afiliacje autorów:
Rostocki A.J. | - | Politechnika Warszawska (PL) | Tarakowski R. | - | inna afiliacja | Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 30p. |
22. |
Malanowski A.♦, Rostocki A.J.♦, Kiełczyński P., Szalewski M., Balcerzak A., Kościesza R.♦, Tarakowski R.♦, Ptasznik S.♦, Siegoczyński R.M.♦, Viscosity and compressibility of diacylglycerol under high pressure,
HIGH PRESSURE RESEARCH, ISSN: 0895-7959, DOI: 10.1080/08957959.2013.775649, Vol.33, No.1, pp.178-183, 2013Streszczenie: The influence of high pressure on viscosity and compressibility of diacylglycerol (DAG) oil has been presented in this paper. The investigated DAG oil was composed of 82% of DAGs and 18% TAGs (triacylglycerols). The dynamic viscosity of DAG was investigated as a function of the pressure up to 400 MPa. The viscosity was measured by means of the surface acoustic wave method, where the acoustic waveguides were used as sensing elements. As the pressure was rising, the larger ultrasonic wave attenuation was observed, whereas amplitude decreased with the liquid viscosity augmentation. Measured changes of physical properties were most significant in the pressure range near the phase transition. Deeper understanding of DAG viscosity and compressibility changes versus pressure could shed more light on thermodynamic properties of edible oils. Słowa kluczowe: DAG viscosity, compressibility, phase transitions, transmitted and scattered light Afiliacje autorów:
Malanowski A. | - | inna afiliacja | Rostocki A.J. | - | Politechnika Warszawska (PL) | Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Kościesza R. | - | inna afiliacja | Tarakowski R. | - | inna afiliacja | Ptasznik S. | - | Air Force Institute of Technology (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) |
| | 25p. |
23. |
Rostocki A.J.♦, Malanowski A.♦, Tarakowski R.♦, Szlachta K.♦, Kiełczyński P., Szalewski M., Balcerzak A., Ptasznik S.♦, The sound velocity measurement in diacylglycerol oil under high pressure,
HIGH PRESSURE RESEARCH, ISSN: 0895-7959, DOI: 10.1080/08957959.2013.769975, Vol.33, No.1, pp.172-177, 2013Streszczenie: In this article, the influence of high pressure on sound velocity at 293 K has been presented. The investigated diacylglycerol oil (DAG – [D82T18]AG) was composed of 82% DAGs and 18% triacylglycerols. The variation of sound velocity with hydrostatic pressure for DAG was evaluated up to 400 MPa. The phase transformation in DAG has been observed as a discontinuity of the dependence of sound velocity on pressure. The sound velocity during the phase transition has shown distinct increment. Also the volume changes have been measured. It has shown the rapid drop of the volume at the phase transformation pressure due to the possible crystallization of DAG oil. Słowa kluczowe: high pressure, velocity, DAG Afiliacje autorów:
Rostocki A.J. | - | Politechnika Warszawska (PL) | Malanowski A. | - | inna afiliacja | Tarakowski R. | - | inna afiliacja | Szlachta K. | - | inna afiliacja | Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 25p. |
24. |
Kiełczyński P., Szalewski M., Balcerzak A., Malanowski A.♦, Siegoczyński R.M.♦, Ptasznik S.♦, Investigation of high-pressure phase transitions in DAG (diacylglycerol) oil using the Bleustein–Gulyaev ultrasonic wave method,
FOOD RESEARCH INTERNATIONAL, ISSN: 0963-9969, DOI: 10.1016/j.foodres.2012.07.025, Vol.49, pp.60-64, 2012Streszczenie: In this paper, phase transitions in diacylglycerol (DAG) oil are investigated by using an ultrasonic method for measuring viscosity. Viscosity of diacylglycerol (DAG) oil is measured over a wide range of hydrostatic pressures up to 500 MPa, and at temperatures ranging from 10 to 40 °C. The observed discontinuities in the viscosity versus pressure curves (isotherms) indicate phase transitions. An original ultrasonic method that uses the surface acoustic Bleustein–Gulyaev (B–G) wave was employed to measure the viscosity of DAG oil at high pressure range. This method allows for fast and reliable measurement of DAG oil viscosity along various isotherms. Moreover, the kinetics of the observed phase transformations at various temperatures was analyzed. The results of the study are a novelty, and can be helpful in evaluating the physicochemical properties of edible oils. Słowa kluczowe: Edible oils, Ultrasonic methods, Diacylglycerols, Viscosity, Phase transitions, High pressure Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Malanowski A. | - | inna afiliacja | Siegoczyński R.M. | - | Politechnika Warszawska (PL) | Ptasznik S. | - | Air Force Institute of Technology (PL) |
| | 40p. |
25. |
Kiełczyński P., Szalewski M., Balcerzak A., Effect of a viscous liquid loading on Love wave propagation,
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, ISSN: 0020-7683, DOI: 10.1016/j.ijsolstr.2012.04.030, Vol.49, No.17, pp.2314-2319, 2012Streszczenie: This paper describes a theory of surface Love waves propagating in a layered elastic waveguide loaded on its surface by a viscous (Newtonian) liquid. An analytical expression for the complex dispersion equation of Love waves has been established. The real and imaginary parts of the complex dispersion equation were separated and resulting system of nonlinear algebraic equations was solved numerically. The influence of the viscosity of liquid on the dispersion curves of phase velocity, the wave attenuation and the distribution of the Love wave amplitude is analyzed numerically. The propagation loss is produced only by the viscosity of liquids. Elastic layered waveguide is assumed to be loss-less. The numerical solutions show the dependence of the phase velocity change, the wave attenuation and the wave amplitude distribution in terms of the liquid viscosity and the wave frequency. The results of the investigations are fundamental and can be applied in the design and development of liquid viscosity sensors and biosensors, in Non-Destructive Testing (NDT) of materials, in geophysics and seismology. Słowa kluczowe: Love waves, Viscous liquids, Dispersion relations, Attenuation, Viscosity sensors Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN |
| | 40p. |
26. |
Kiełczyński P., Szalewski M., Balcerzak A., Rostocki A.J.♦, Tefelski D.B.♦, Application of SH surface acoustic waves for measuring the viscosity of liquids in function of pressure and temperature,
Ultrasonics, ISSN: 0041-624X, Vol.51, No.8, pp.921-924, 2011Streszczenie: Viscosity measurements were carried out on triolein at pressures from atmospheric up to 650 MPa and in the temperature range from 10 C to 40 C using ultrasonic measuring setup. Bleustein–Gulyaev SH surface acoustic waves waveguides were used as viscosity sensors. Additionally, pressure changes occurring during phase transition have been measured over the same temperature range. Application of ultrasonic SH surface acoustic waves in the liquid viscosity measurements at high pressure has many advantages. It enables viscosity measurement during phase transitions and in the high-pressure range where the classical viscosity measurement methods cannot operate. Measurements of phase transition kinetics and viscosity of liquids at high pressures and various temperatures (isotherms) is a novelty. The knowledge of changes in viscosity in function of pressure and temperature can help to obtain a deeper insight into thermodynamic properties of liquids. Słowa kluczowe: SH surface acoustic waves, Viscosity, High pressure, Phase transitions Afiliacje autorów:
Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Rostocki A.J. | - | Politechnika Warszawska (PL) | Tefelski D.B. | - | inna afiliacja |
| | 25p. |
27. |
Rostocki A.J.♦, Siegoczyński R.M.♦, Kiełczyński P., Szalewski M., Balcerzak A., Zduniak M.♦, Employment of a novel ultrasonic method to investigate high pressure phase transitions in oleic acid,
HIGH PRESSURE RESEARCH, ISSN: 0895-7959, Vol.31, No.2, pp.334-338, 2011Streszczenie: In this work, the variation of sound velocity with hydrostatic pressure for oleic acid is evaluated up to 350MPa. During the measurement, we identified the phase transformation of oleic acid and the presence of the hysteresis of the dependence of sound velocity on pressure. From the performed measurements, it can be seen that the dependence of sound velocity on pressure can be used to investigate phase transformations in natural oils. Ultrasonic waves were excited and detected using piezoelectric LiNbO3(Y-36 cut) 5MHz transducers. The phase velocity of the longitudinal ultrasonicwaveswas measured using a cross-correlation method to evaluate the time of flight. Słowa kluczowe: Sound velocity, oleic acid, high pressure, phase transition Afiliacje autorów:
Rostocki A.J. | - | Politechnika Warszawska (PL) | Siegoczyński R.M. | - | Politechnika Warszawska (PL) | Kiełczyński P. | - | IPPT PAN | Szalewski M. | - | IPPT PAN | Balcerzak A. | - | IPPT PAN | Zduniak M. | - | inna afiliacja |
| | 25p. |
28. |
Balcerzak A., Aleksiejuk M., Zhavnerko G.♦, Agabekov V.♦, Sensing properties of two-component Langmuir-Blodgett layer and its porous derivative in SAW sensor for vapors of methanol and ethanol,
THIN SOLID FILMS, ISSN: 0040-6090, DOI: 10.1016/j.tsf.2009.10.157, Vol.518, pp.3402-3406, 2010Streszczenie: Two-component Langmuir–Blodgett film has been fabricated from equimolar mixture of 5-[[1,3-dioxo-3-[4-(1-oxooctadecyl)phenyl]propyl]amino]-1,3-benzenedicarboxylic acid with cetylamine. Porous one-component derivative of this film has been obtained by removing of cetylamine. Both films have been investigated as sensing layers of the surface acoustic wave sensors for vapors of methanol and ethanol in air. These films react on the alcohol vapors. Time of the sensor reaction is less than 2 s and this reaction is reversible. The response parameters of the sensor depend on the kind of the alcohol and the structure of the layer. An explanation of the observed differences in the behavior of both layers in contact with vapors of the alcohols has been proposed. Słowa kluczowe: Self-assembled monolayer, Langmuir–Blodgett films, Organic films, Surface acoustic wave, Sensors, Alcohols, Methanol, Ethanol Afiliacje autorów:
Balcerzak A. | - | IPPT PAN | Aleksiejuk M. | - | IPPT PAN | Zhavnerko G. | - | Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY) | Agabekov V. | - | Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY) |
| | 32p. |
29. |
Balcerzak A., A new nanoporous material in chemical sensor for vapors of some volatile organic solvents,
ARCHIVES OF METALLURGY AND MATERIALS, ISSN: 1733-3490, Vol.54, pp.717-722, 2009 | | 20p. |
30. |
Balcerzak A., Adsoption properties of porous Langmuir-Blodgett layer used in SAW sensor for vapors of some chlorinated hydrocarbons,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.34, No.3, pp.345-352, 2009 | | 9p. |
31. |
Balcerzak A., Ultrasonic measurements of aqueous solutions of β-cyclodextrin with alkyl pyridinium bromides,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.33, No.4, pp.413-427, 2008 | |
32. |
Balcerzak A., Zhavnerko G.♦, Ultrasonic chemical sensor for detection of aliphatic and aromatic hydrocarbons in air,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.32, No.4, pp.53-58, 2007 | |
33. |
Balcerzak A., Zhavnerko G.♦, Langmuir-Blodgett layer as chemosensitive element of ultrasonic chemical sensor,
MOLECULAR AND QUANTUM ACOUSTICS. ANNUAL JOURNAL, ISSN: 0208-5151, Vol.27, pp.17-24, 2006 | |
34. |
Balcerzak A., Rejmund F., Gutkiewicz P., Zienkiewicz B., Zhavnerko G.♦, Ultrasonic chemical sensor with organic monomolecular layer,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.31, No.4, pp.47-52, 2006Streszczenie: In this work a structure of a ultrasonic chemical sensor with organic monomolecular layer as well as introductory measurement with the help of a set-up constructed in IFTR PAS are presented. Chemical composition of this layer is an equimolar mixture of 5-[[1,3-dioxo-3- [4-(1-oxooctadecyl) phenyl] propyl] amino] – 1,3 – benzenedicarboxylic acid (DA) and cetylamine (CA). The thickness of this layer is equal to dimension of one molecule. The sensor layer was deposited on one channel of the bi-channel sensor delay line (made from lithium niobiate) by means of the Langmuir–Blodgett method. The chemical sensitivity of this sensor to some mixtures of air with vapor of volatile organic compounds has been investigated Słowa kluczowe: ultrasonic chemical sensor, Langmuir–Blodgett layers, air-organic vapor mixtures, volatile organic compounds Afiliacje autorów:
Balcerzak A. | - | IPPT PAN | Rejmund F. | - | IPPT PAN | Gutkiewicz P. | - | IPPT PAN | Zienkiewicz B. | - | IPPT PAN | Zhavnerko G. | - | Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY) |
| |
35. |
Balcerzak A., Relaxation phenomena in the nematic phase of liquid crystal near phase transition,
MOLECULAR AND QUANTUM ACOUSTICS. ANNUAL JOURNAL, ISSN: 0208-5151, Vol.26, No.7, pp.7-13, 2005 | |
36. |
Balcerzak A., Ultrasonic measurements in the 1-(trans-4-hexylcyclohexyl)-4-isothiocyanatobenzene near the nematic-isotropic transition,
ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.30, pp.373-378, 2005 | |
37. |
Balcerzak A., Rejmund F., Gutkiewicz P., Zienkiewicz B., Zhavnerko G.♦, Surface acoustic wave (saw) chemical sensor with Langmuir-Blodgett layer,
PRACE KOMISJI NAUK CERAMICZNYCH - POLSKI BIULETYN CERAMICZNY. CERAMIKA, ISSN: 0860-3340, Vol.89, pp.190-195, 2005 | |
38. |
Kiełczyński P., Pajewski W., Szalewski M., Balcerzak A., Measurement of the shear storage modulus and viscosity of liquids using the Bleustein–Gulyaev wave,
REVIEW OF SCIENTIFIC INSTRUMENTS, ISSN: 0034-6748, DOI: 10.1063/1.1765760, Vol.75, No.7, pp.2362-2367, 2004 | |
39. |
Balcerzak A., Płowiec R., Charakterystyka i konstrukcja zbudowanego w IPPT stanowiska do ultradźwiękowego badania zjawisk relaksacyjnych w cieczach w zakresie częstotliwości 10 - 150 MHz,
Prace IPPT - IFTR Reports, ISSN: 2299-3657, No.21, pp.1-16, 1994 | |
40. |
Balcerzak A., Bazior Z.♦, Kozłowski Z.♦, Zautomatyzowany układ do pomiarów ultradźwiękowych w cieczach metodą rezonacyjną (Eggersa),
Prace IPPT - IFTR Reports, ISSN: 2299-3657, No.17, pp.1-14, 1992 | |