This study systematically investigates the influence of heat treatment on mechanical and magnetic properties AISI 304 austenitic stainless steel following cold rolling. Experimental analyses were conducted samples annealed at 50 °C to 1200 in 25 increments. The characterized through chemical metallographic analyses, microhardness testing, hardness measurements, tear-off force evaluations. Magnetic assessed using a fluxgate sensor analyze intrinsic field variations. findings reveal that...

This paper presents an approach to reconstruct multiple cracks from eddy current testing signals by means of a stochastic method such as tabu search. The size, number, and locations are considered unknown in the inversion process, whereas only orientation is supposed be revealed advance. Eddy inspections stainless steel plate with closely located EDM slits performed, inversions measured carried out. results agree well true ones, which validates proposed algorithm.

Hypomagnetic fields (HMF), or nearly zero magnetic fields, are with a value of flux density lower than the Earth's geomagnetic field. The effects these so-called weak can manifest in living organisms by influencing biological functions such as circadian system, calcium balance cells, DNA methylation, concentration reactive oxygen species, well changes metabolic and developmental processes. This article describes how HMF affects selected cellular structures through specific exposure...

This paper proposes a unique idea for enhancing sizing ability in eddy current nondestructive testing. A detected crack is inspected using several probes driven at the same exciting frequency but producing different distributions. Two are utilized purpose paper. The signals obtained with two linearly superposed and value of ratio superposition extracted from mixed signals. Numerical investigations experimental verification reveal that provides clear indications crack's depth. In addition,...

The presented paper deals with low frequency electromagnetic field application on Saccharomyces cerevisiae cells.Experiments performed through wide range have shown selective dependent biological response, which could be successfully predicted by ion parametric resonance theory proposed V. Lednev.Although observed results give satisfying answer to questions whether or not fields affect cell cultures even at non-thermal levels, the research herein opens a multitude of about exact physical...

The paper brings original measurement results of the high-frequency electromagnetic field as a product various communication devices and technologies inside car. measurements were performed conventional vehicle under standard condition at an urban environment. electric strength has been measured using BK Precision BK2650A spectral analyzer together with omnidirectional 8dBi antenna. took place in 500 MHz-3300 MHz frequency band, for EM wave horizontal polarization. study did not find...

In this paper, a novel nondestructive strategy is proposed for distinguishing differences between stress corrosion crack (SCC) and fatigue (FC) based on signals from eddy current testing (ECT). The consists of measurement procedures with special ECT probe type judgment scheme an index parameter that defined as the amplitude ratio measured signals. An probe, which can induce flowing mainly in selected direction, applied to detect by scanning along different orientations. It clear amplitudes...

This article is focused on the in vitro experimental verification of basic necessary conditions for valid interpretation an ion parametric resonance prediction model biological reaction externally applied, extremely low-frequency magnetic field. Experiments are performed organism Saccharomyces cerevisiae strain BY4741, with intention to target calcium ions, which already produced interesting preliminary results within authors’ previous works, confirming specific field settings being...

This work presents the results of examination HeLa cell line exposure on ELF-EMF (extremely low-frequency electromagnetic field). In particular, relationship between exposition time and death. The death hallmarks were examined by estimation levels selected proteins - FACL4 (a protein that is a part ferroptosis pathway) CK18 (Cytokeratin related to necrosis apoptosis pathways) in proposed model workers exposed week.

This article focuses on the design and implementation of a device aimed at monitoring gait dynamics. In clinical settings, dynamics are conventionally observed within specialized motion laboratories that rely camera systems or pressure-sensitive floor mats. Unfortunately, these methods provide clinicians with only temporally restricted perspective patient's health hospital environment. The objective this study is to propose develop functional prototype measurement utilizes force-sensing...

The paper deals with low frequency electromagnetic field effects on ultra-weak photon emission from yeast cells Saccharomyces cerevisiae. current state of the research interactions biological systems is shortly presented and phenomenon samples briefly introduced. experimental results indicate differences in dynamics between exposed to magnetic controls cells. Results suggest potential applicability this method for evaluation

Abstract Effect of low frequency electromagnetic field on growth selected microorganism is studied in the article. The diploid fungus that grows both as yeast and filamentous cell was chosen for this research. theory ion parametric resonance taken base studying influence biological structures. We tested hypothesis, whether it possible to observe change properties Candida albicans with an AC tuned calcium ions cyclotron frequency.

The paper focuses on increasing information level of response signals in eddy-current non-destructive inspection. A new detection system is proposed the study for enhancing quantitative evaluation an indicated defect. It compose

The paper deals with eddy current non-destructive inspection of partially conductive cracks. A non-magnetic plate specimen is examined using numerical simulations. crack the rectangular shape modelled in middle plate. Dime

The advancement in science and technology has resulted the invention widespread usage of many electrical devices daily lives humans. exponential use modern electronic facilities increased electromagnetic field exposure current population. Therefore, presented article deals with designing, constructing, testing a new applicator system developed for cells biocompatibility studies. is intended studying non-thermal impacts low-frequency magnetic on cell cultures growth. Main attention focused...

Non-destructive methods of material properties evaluation are presented in the paper. The useful especially for increasing safety sophisticated and environment threatening facilities and, consequently, decreasing operating expenditures those facilities. attention is paid mainly to method that utilises eddy currents induced surface layer conducting samples by means a small flat coil. current testing theoretically described results its particular application

The article deals with utilization of two various types sensing elements in eddy current non-destructive testing. An inductance coil and a fluxgate magnetometer are employed to pick-up the response signals from artificial slits. sensitivity an

Abstract This article deals with non-destructive testing of conductive materials by eddy current method based on swept frequency. A 2D numerical model air-core probe was created in the LTspice software at first. The consists two coils: exciting coil and receiving. is positioned air this case. Experimental calculated frequency responses are obtained within a wide range using order to validate model. Frther 3D used for austenitic steel plate three electro-discharge machined notches then...