Search Results - "WOJCIK, Andrzej"

Influence of the Undercut Anchor Head Angle on the Propagation of the Failure Zone of the Rock Medium by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej

“…The paper presents the results of a numerical analysis (FEM) describing the effect of the undercutting head angle on the formation of the rock mass failure…”
Get full text

Influence of the Undercut Anchor Head Angle on the Propagation of the Failure Zone of the Rock Medium—Part II by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej

“…Problems concerning the influence of the geometric parameters of an undercutting anchor on the range of the failure zone of rock medium during the pulling out…”
Get full text

The Influence of the Physical-Mechanical Parameters of Rock on the Extent of the Initial Failure Zone under the Action of an Undercut Anchor by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej, Siegmund, Michał

“…This paper presents the results of a numerical FEM (Finite Element Method) simulation of the formation of a rock failure zone in its initial stage of…”
Get full text

Analysis of the Rock Failure Cone Size Relative to the Group Effect from a Triangular Anchorage System by Jonak, Józef, Karpiński, Robert, Siegmund, Michał, Wójcik, Andrzej, Jonak, Kamil

“…This study employs the numerical analysis and experimental testing to analyze the fracturing mechanics and the size of rock cones formed in the pull-out of a…”
Get full text

Analysis of the Applicability of microRNAs in Peripheral Blood Leukocytes as Biomarkers of Sensitivity and Exposure to Fractionated Radiotherapy towards Breast Cancer by Marczyk, Michal, Polańska, Joanna, Wojcik, Andrzej, Lundholm, Lovisa

“…Biomarkers for predicting individual response to radiation and for dose verification are needed to improve radiotherapy. A biomarker should optimally show…”
Get full text

Determining the Effect of Rock Strength Parameters on the Breakout Area Utilizing the New Design of the Undercut/Breakout Anchor by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej, Siegmund, Michał, Kalita, Marek

“…This paper presents the idea and provides an analysis of the rock breakout mechanism utilizing an undercut/breakout anchor. The new design is a modification of…”
Get full text

Numerical Investigation of the Formation of a Failure Cone during the Pullout of an Undercutting Anchor by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej, Siegmund, Michał

“…Previously published articles on anchors have mainly focused on determining the pullout force of the anchor (depending on the strength parameters of the…”
Get full text

Three-Dimensional Finite Element Analysis of the Undercut Anchor Group Effect in Rock Cone Failure by Jonak, Józef, Siegmund, Michał, Karpiński, Robert, Wójcik, Andrzej

“…An objective of this study was to investigate the group effect in rock cone failure occurring in pull-out with the use of 3D finite element analysis. At…”
Get full text

The order of sequential exposure of U2OS cells to gamma and alpha radiation influences the formation and decay dynamics of NBS1 foci by Tartas, Adrianna, Lundholm, Lovisa, Scherthan, Harry, Wojcik, Andrzej, Brzozowska, Beata

“…DNA double strand breaks (DSBs) are a deleterious form of DNA damage. Densely ionising alpha radiation predominantly induces complex DSBs and sparsely ionising…”
Get full text

Mechanism of Rock Mass Detachment Using Undercutting Anchors: A Numerical Finite Element Method (FEM) Analysis by Wójcik, Andrzej, Jonak, Kamil, Karpiński, Robert, Jonak, Józef, Kalita, Marek, Prostański, Dariusz

“…Undercutting anchors are structural elements used in construction and geotechnics to stabilize both structures and soils. Their main applications include…”
Get full text

Impact of fractionated cisplatin and radiation treatment on cell growth and accumulation of DNA damage in two normal cell types differing in origin by Akuwudike, Pamela, López-Riego, Milagrosa, Dehours, Cloé, Lundholm, Lovisa, Wojcik, Andrzej

“…Evidence on the impact of chemotherapy on radiotherapy-induced second malignant neoplasms is controversial. We estimated how cisplatin modulates the in vitro…”
Get full text

Special issue: Networking in biological and EPR/OSL dosimetry: the European RENEB platform for emergency preparedness and research by Kulka, Ulrike, Wojcik, Andrzej

Get full text

The Effect of Undercut Anchor Diameter on the Rock Failure Cone Area in Pullout Tests by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej, Siegmund, Michał

“…The numerical analysis was conducted using the FEM ABAQUS software to establish the impact of various undercut anchor diameters on the rock breakout cone…”
Get full text

Influence of Anchor Depth and Friction Coefficient Between Anchor and Rock on the Trajectory of Rock Masses Detachment by Jonak, Józef, Karpiński, Robert, Wójcik, Andrzej

“…This paper presents the results of a Finite Element Analysis (FEA) of the formation of the fracture trajectory during the detachment of rock masses depending…”
Get full text

Hypothermia differentially modulates the formation and decay of NBS1, γH2AX and 53BP1 foci in U2OS cells exposed to gamma radiation by Płódowska, Magdalena, Krakowiak, Wiktoria, Węgierek-Ciuk, Aneta, Lankoff, Anna, Szary, Karol, Lis, Krzysztof, Wojcik, Andrzej, Lisowska, Halina

“…In studies on the mechanism of DNA damage response where ionizing radiation is used as the DNA damaging agent, cells are often exposed to ionizing radiation on…”
Get full text

A turning point in history: thinking about the unthinkable by Rühm, Werner, Friedl, Anna A., Wojcik, Andrzej

Get full text

Live Dynamics of 53BP1 Foci Following Simultaneous Induction of Clustered and Dispersed DNA Damage in U2OS Cells by Sollazzo, Alice, Brzozowska, Beata, Cheng, Lei, Lundholm, Lovisa, Scherthan, Harry, Wojcik, Andrzej

“…Cells react differently to clustered and dispersed DNA double strand breaks (DSB). Little is known about the initial reaction to simultaneous induction of DSBs…”
Get full text

Simultaneous induction of dispersed and clustered DNA lesions compromises DNA damage response in human peripheral blood lymphocytes by Cheng, Lei, Brzozowska, Beata, Sollazzo, Alice, Lundholm, Lovisa, Lisowska, Halina, Haghdoost, Siamak, Wojcik, Andrzej

“…Due to its ability to induce DNA damage in a space and time controlled manner, ionising radiation is a unique tool for studying the mechanisms of DNA repair…”
Get full text

Analysis of elements secreted by CHO-K1 cells exposed to gamma radiation under different treatments by Czub, Joanna, Braziewicz, Janusz, Kubala-Kukuś, Aldona, Wójcik, Andrzej

“…Purpose: The aim of the study was to determine the concentration of elements using the two methods: total reflection X-ray fluorescence (TXRF) and wavelength…”
Get full text

Tolerance to Gamma Radiation in the Tardigrade Hypsibius dujardini from Embryo to Adult Correlate Inversely with Cellular Proliferation by Beltrán-Pardo, Eliana, Jönsson, K Ingemar, Harms-Ringdahl, Mats, Haghdoost, Siamak, Wojcik, Andrzej

“…Tardigrades are highly tolerant to desiccation and ionizing radiation but the mechanisms of this tolerance are not well understood. In this paper, we report…”
Get full text