Search results

1

Nanohardness and elasticity of cell walls of Scots pine (Pinus sylvestris L.) juvenile and mature wood

100%

Mania P., Nowicki M., Mania P., Nowicki M.

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2020

|

issue 5

2

Magnetovision Scanning System for Detection of Dangerous Objects

89%

Nowicki M., Szewczyk R.

|

vol. 126

|

issue 1

382-383

EN

This paper presents an application of magnetovision based measurements to develop a method for passive detection of dangerous ferromagnetic objects. Scanning system was designed and built to study the magnetic field vector distributions. The measurements of the Earth's field disturbances caused by ferromagnetic objects were carried out. The ability for passive detection of selected dangerous objects was demonstrated. Further data processing allowed for determining the (x,y) coordinates of the object relative to the plane of measurement, and even the possibility of calculating the distance from the object. The results obtained indicate that it is possible to detect and determine the location of dangerous ferromagnetic objects. This opens the new way to use magnetovision in public security systems, in particular for the detection of dangerous objects by police and sapper robots.

3

Nanoindentation as a Tool for Recognition of Composites Components

89%

Nowicki M., Susła B.

Acta Physica Polonica A

|

2003

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vol. 104

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issue 3-4

365-372

EN

A brief description of the basis principles of determination Young's indentation modulus and hardness by using of nanoindentation technique are given. The detailed indentation technique and characteristic features of polymer at room temperature are also discussed.

4

The Influence of the Use of Fasteners with Different Stiffness in Hybrid Joints Subjected to Complex Mechanical Loads

76%

Sadowski T., Nowicki M., Golewski P., Sadowski T., Nowicki M., Golewski P.

Archives of Metallurgy and Materials

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2019

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vol. 64

|

issue 4

5

Application of Anisotropic Vector Preisach Model for Bulk Materials

72%

Frydrych P., Szewczyk R., Nowicki M., Charubin T.

Acta Physica Polonica A

|

2017

|

vol. 131

|

issue 4

618-620

EN

In this paper possibility of application two-dimensional vector Preisach model for bulk materials was investigated. Physical magnetization mechanisms in bulk cores and thin ribbons were analyzed. Model is based on collection of the Preisach planes which describe material state in different angles on rotation plane. Presented model exhibits good conformity with experimental data for bulk as well for ribbon shaped cores. Model includes anisotropy and describes not only mean magnetization vector, but also distribution of magnetic moments for different angles.

6

Active LR Integrator Circuit with Ferrite Core

72%

Gazda P., Nowicki M., Kachniarz M.

Acta Physica Polonica A

|

2018

|

vol. 133

|

issue 4

1041-1044

EN

The paper presents the idea of active LR integrator circuit based on ferrite core. The LR topology, in contrast to contemporary RC, allow for drift-free operation of the integrator. Presented circuit is intended as main component of continuous operation fluxmeters and magnetoelastic transducers, especially working with low frequency signals. Critical component for proper frequency range and low signal distortion is the core material, which should allow for close-to-ideal inductance in the circuit. Presented simulation, measurement results, and total harmonic distortion analysis show that the proposed circuit works correctly.

7

Geometry and flatness of m-crane systems

72%

Nowicki M., Respondek W., Piasek J., Kozłowski K.

|

2019

|

issue 5

8

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

72%

Nowak P., Nowicki M., Gromada K., Szewczyk R.

Acta Physica Polonica A

|

2018

|

vol. 133

|

issue 4

1045-1048

EN

Paper presents utilized innovative setup for eddy current tomography and possibility of its utilization in testing oxide materials such as ferrites. Previously reported tests concerned materials with high conductivity which is the most typical usage of eddy current tests. Described tomography setup is designed for testing axisymmetric objects thus typical ferrite ring was selected for exemplary testing. Tests were conducted on ring in original state. Afterwards reference defect was created on element and measurements were repeated. Significant difference between tests results were observed, thus potential for utilization in controlling of ferrite rings manufacturing process was confirmed. Finite element method simulations were applied in order to confirm the measurement results. Calculations were conducted in open-source finite element method software, which solves the Maxwell equations in the A-V form. Modelling results confirm possibility of finite element method-based inverse tomography transformation.

9

The effect of macrogol administration on the quality of macroscopic images and transit time in canine capsule endoscopy

72%

Rychlik A., Nowicki M., Kander M., Szweda M.

Polish Journal of Veterinary Sciences

|

2014

|

issue 4

10

Utilization of Eddy Current Tomography in Automotive Industry

72%

Nowak P., Nowicki M., Juś A., Szewczyk R.

Acta Physica Polonica A

|

2017

|

vol. 131

|

issue 4

1168-1170

EN

Paper presents utilized innovative setup for eddy current tomography and possibility of its utilization in automotive industry. Described tomography setup is designed for testing axisymmetric objects thus motor valve was selected for exemplary testing. Tests were conducted on motor valve in original state. Afterwards reference defect was created on element and measurements were repeated. Significant difference between tests results were observed, thus potential for utilization in automotive industry was confirmed. Finite element method simulations were applied in order to confirm the measurement results. Calculations were conducted in open-source finite element method software, which solves Maxwell equations in the A-V form. Modelling results confirm possibility of finite element method-based inverse tomography transformation.

11

Clinical, endoscopic and histopathological evaluation of the efficacy of budesonide in the treatment of inflammatory bowel disease in dogs

72%

Rychlik A., Kołodziejska-Sawerska A., Nowicki M., Szweda M.

Polish Journal of Veterinary Sciences

|

2016

|

issue 1

12

Imidazoline receptor antagonists - new perspectives in the traetment of hypertension

72%

Nowicki M., Wiecek A., Chudek J.

Postępy Higieny i Medycyny Doświadczalnej

|

1995

|

vol. 49

|

issue 5

631-643

EN

Adrenrgic alpha2-receptors mediate important regulatory functions in both the brain and the periphery. Activation of these receptors lowers blood pressure through a decrease in sympathetic and vasomotor nerve activity.Agonists of the alpha2-adrenoreceptors are often used in the treatment of arterial hypertension.As recently discovered, their chemical structure includes so called "imidazoline ring" and compounds with such chemical structure bind to nonadrenergic sites known as imidazoline receptors.These receptors are localized in midportions of the brain by they also present in otherorgans such a lungs, heart, adrenal medulla, liver and kidneys.Their selective activation lowers blood pressure without inducing sedation typical for alpha2-agonists.Several substances binding with high selectivity to imidazoline receptors have recently been synthetized.Some of them as rilmenidine and moxonidine have successfully been introduced to the treatment of arterial hypertension in humans.

13

The Satellites Orientation Method using a Torque Magnetic Drive

72%

Korobiichuk I., Kachniarz M., Nowicki M.

Acta Physica Polonica A

|

2018

|

vol. 133

|

issue 3

722-724

EN

Small values of external perturbation forces made it possible to use a torque magnetic drive as a control system. Today, satellite orientation systems use pulsed-type algorithm for discharge of an angular momentum accumulator. The feasibility of using other algorithms (continuous, continuous-pulsed and algorithm of torque magnetic drive operation using `forecast' models of accumulated angular momentum and geomagnetic field) is not covered and not examined, although each has certain advantages for certain types of satellites and their conditions of operation in space. The article highlights satellites operating conditions in space, considers satellites orientation method using a torque magnetic drive and substantiates the necessity of satellite motion simulation with further establishing a technique for evaluation of orientation system given the effect of permanent magnetic and gravitational fields, the type of discharge of accumulated angular momentum, the height of trajectory and the nature of random perturbations.

14

Contrast-enhanced ultrasonography (CEUS) in canine liver examination

72%

Wdowiak M., Rychlik A., Nieradka R., Nowicki M.

Polish Journal of Veterinary Sciences

|

2010

|

issue 4

15

Production of proteins in the cell-free expression systems

72%

Szaflarski W., Sujka P., Nowicki M., Zabel M.

Biotechnologia

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2009

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issue 1

86-97

EN

Efficient protein synthesis has become a critical issue in recent biotechnology and functional protemic studies. Traditional expression of protein performed in host cells such as Escherichia coli or Saccharomyces cerevisiae is generally lengthy and costly. Cell-free protein synthesis is an attractive alternative offering simplicity and fast rate of the reaction as well as the generation of functional proteins that are difficult to obtain using in vivo systems. Furthermore, the open nature of these systems makes it amenable to manipulation allowing the investigations into the mechanism of protein synthesis itself and into the inhibition of that process by interfering molecules such as antibiotics. Here we review all the main classes of cell-free protein expression system and we emphasize their potency and recent applications in biotechnology.

16

Active LR Integrator Circuit for Drift-Free Magnetoelastic Transducer

72%

Gazda P., Nowicki M., Kachniarz M.

Acta Physica Polonica A

|

2018

|

vol. 133

|

issue 3

745-747

EN

Current integrator systems usually use active RC integrator circuits. Crucial dificulty associated with this analogue system is the integrator drift. The following paper presents the idea of the active integrator circuit based on inductive and resistive components. This concept allows to eliminate the time drift of the circuit, which is undesired phenomenon resulting from capacitive components working in the traditional negative feedback loop. The SPICE simulations were performed to validate the presented idea. Then, prototype circuit with discrete components was tested. Inductors were based on nanocrystalline and air cores. The developed solution was tested as magnetoelastic sensors transducer, to confirm the ability for long-term, continuous, drift-free, integrator circuit operation. The results were compared with traditional, RC circuit with automatic drift compensation.

17

The effect of budesonide on the expression of Ki-67 and PCNA and the apoptotic indexin dogs with inflammatory bowel disease

72%

Szweda M., Rychlik A., Nowicki M., Kaczmar E.

Polish Journal of Veterinary Sciences

|

2017

|

issue 4

18

Primary Electron Scattering in Co/Cu(110) Measured by Elastic and Loss Electrons

72%

Turko D., Morawski I., Nowicki M.

Acta Physica Polonica A

|

2013

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vol. 124

|

issue 1

161-164

EN

Elastically backscattered electrons and electron energy losses were measured for the Co/Cu(110) system at different incidence angles of the primary electron beam to obtain the directional elastic peak electron spectroscopy and directional electron energy loss spectroscopy profiles. The measurements were performed for clean and covered Cu(110) by equivalent quantities of 3 ML and 5 ML of Co. The directional elastic peak electron spectroscopy profiles show a similar distribution of intensity maxima for Cu(110) and Co/Cu(110), which indicates the epitaxial growth of Co layers. The chemical sensitive signal of electron energy losses (Cu and Co 3 p_{3/2}) recorded as a function of the incidence angle of primaries is characterized by modulations which reflect the order within the first few atomic layers of the investigated sample. Therefore, in the case of directional electron energy loss spectroscopy both the chemical and structural information is obtained.

19

Nanostructuring and Hardness Investigations of Thin Films by Scanning Force Microscopy

72%

Nowicki M., Richter A., Ries R., Oszwałdowski M.

Acta Physica Polonica A

|

1998

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vol. 93

|

issue 2

437-441

EN

The scanning force microscope was used to scratch thin films and to write nanoscale pattern on surfaces as well as to perform nanoindentation for hardness measurements. Different thin film materials such as C_{60} films, diamond-like carbon, metals and semiconducting films have been investigated.

20

Influence of chronic caprine arthritis-encephalitis virus infection on the population of peripheral blood leukocytes

63%

Kaba J., Winnicka A., Zaleska M., Nowicki M., Bagnicka E.

Polish Journal of Veterinary Sciences

|

2011

|

issue 4

Refine search results

Nanohardness and elasticity of cell walls of Scots pine (Pinus sylvestris L.) juvenile and mature wood

Magnetovision Scanning System for Detection of Dangerous Objects

Nanoindentation as a Tool for Recognition of Composites Components

The Influence of the Use of Fasteners with Different Stiffness in Hybrid Joints Subjected to Complex Mechanical Loads

Application of Anisotropic Vector Preisach Model for Bulk Materials

Active LR Integrator Circuit with Ferrite Core

Geometry and flatness of m-crane systems

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

The effect of macrogol administration on the quality of macroscopic images and transit time in canine capsule endoscopy

Utilization of Eddy Current Tomography in Automotive Industry

Clinical, endoscopic and histopathological evaluation of the efficacy of budesonide in the treatment of inflammatory bowel disease in dogs

Imidazoline receptor antagonists - new perspectives in the traetment of hypertension

The Satellites Orientation Method using a Torque Magnetic Drive

Contrast-enhanced ultrasonography (CEUS) in canine liver examination

Production of proteins in the cell-free expression systems

Active LR Integrator Circuit for Drift-Free Magnetoelastic Transducer

The effect of budesonide on the expression of Ki-67 and PCNA and the apoptotic indexin dogs with inflammatory bowel disease

Primary Electron Scattering in Co/Cu(110) Measured by Elastic and Loss Electrons

Nanostructuring and Hardness Investigations of Thin Films by Scanning Force Microscopy

Influence of chronic caprine arthritis-encephalitis virus infection on the population of peripheral blood leukocytes