Wydział Fizyki Technicznej, Informatyki i Matematyki Stosowanej (W7) / Faculty of Technical Physics, Information Technology and Applied Mathematics: Recent submissions
Wyświetlanie pozycji 120 z 152

Elimination of the impact of rc constant on transient photocurrents measured in organic layers.
(Wydawnictwo Politechnika Łódzka, 2016)We present a calculation method for elimination of the effect of the RC constant of the measuring circuit in the timeofflight (TOF) measurements where a pulse generation of the photocurrent in a thin layer of lowmolecular ... 
The effect of symmetry of a molecule electronic density on the dipole moment of unit cell and hole conductivity of thin polycrystalline films of anthrone and anthraquinone.
(Wydawnictwo Politechnika Łódzka, 2016)The electronic structure of anthrone and anthraquinone molecules in the gas state and in the simulated crystal unit cell were calculated with time dependentdensity functional theory (TDDFT) method. The values of dipole ... 
Study of electrically induced orientational ordering in mineral oils on the example of orlen oil trafo en.
(Wydawnictwo Politechnika Łódzka, 2016)A simple model of orientational ordering of molecules in the liquid under the influence of an applied sinusoidal electric field of low frequency is presented. The predicted theoretical dependencies of linear birefringence ... 
Twodimensional deformations in twisted flexoelectric nematic cells.
(Wydawnictwo Politechnika Łódzka, 2016)Electric field induced deformations occurring in twisted nematic cells filled with liquid crystalline material possessing flexoelectric properties were simulated numerically. The aim of computations was to compare the ... 
Photoenhanced conduction in inhomogeneous thin film space charge limited conducting systems.
(Wydawnictwo Politechnika Łódzka, 2016)Photoenhancement of spacecharge limited currents in deliberately modified thinfilm structures is studied using numerical methods. The obtained results suggest that it should be possible to obtain optically induced ... 
History and achievements of the institute of physics of lodz university of technology.
(Wydawnictwo Politechnika Łódzka, 2016)History and achievements of the Institute of Physics of Lodz University of Technology is briefly presented on occasion of 40 anniversary of the Department of Technical Physics, Information Technology and Applied Mathematics. 
Dielectric properties of ferroelectric liquid crystalline material with chiral nematic phase.
(Wydawnictwo Politechnika Łódzka, 2015)The ferroelectric liquid crystal with nematic N* phase has been investigated using broadband low frequency dielectric spectroscopy. The dielectric relaxation modes related to a ferroelectric Goldstone mode were detected ... 
Analytical kinetic block model of crystalmotherphase multilayer interface.
(Wydawnictwo Politechnika Łódzka, 2015)Simple kinetic block model of multilayer crystalmotherphase interface is proposed. The model leads to a system of differential equations which can be solved without the need to run Monte Carlo simulations. The proposed ... 
Temperature dependence of the Kerr constant of fomblin M03.
(Wydawnictwo Politechnika Łódzka, 2016)The Kerr constant B of perfluoropolyether Fomblin M03 has been determined within the temperature range 295370K. At 300K the constant B was found to be equal to 2.8·1015 m/V2. The measurements indicate that B varies ... 
Application of the machzehnder interferometer to measure the quadratic electrooptic effect in nonpolar liquids.
(Wydawnictwo Politechnika Łódzka, 2015)A modification of MachZehnder interferometer is proposed. It is shown that by introducing an additional time dependent phase shift in one of the interferometer arms, its sensitivity may be significantly increased. The ... 
The impact of aromatic additives on kerr effect in rapeseed oil.
(Wydawnictwo Politechnika Łódzka, 2015)The Kerr constant and quadratic electrooptic effect were determined for a few different rapeseed oils. The aim of the study was to investigate if aromatic additives in the oil influence its optical properties. Moreover, ... 
Adsorption induced hole transport in thin layers of nonordered tetracene.
(Wydawnictwo Politechnika Łódzka, 2015)Additional disorder induced by adsorption processes by the molecule of ambient are responsible for deep modulation of conductivity. Observations confirmed the dominated role of the increase of the free carrier concentration ... 
Spline interpolation for trap spectroscopy analysis for two cyclic hydrocarbons.
(Wydawnictwo Politechnika Łódzka, 2015)Cubic spline interpolation gives a tool for obtaining good image of currentvoltage characteristics for trap spectroscopy analysis without prior assumption about the trap distribution for 1acenaphthenol and 9,10dimet ... 
Effect of molecule dipolemoment on hole conductivity of polycrystalline anthrone and anthrachinone layers.
(Wydawnictwo Politechnika Łódzka, 2015)Complex analyzes were made using methods of molecular quantum mechanics to investigate the effect of the dipole moment of the molecule carrier drift mobility in polycrystalline layers composed of anthrone and anthrachinone ... 
Macroscopic model formulae describing anisotropic anchoring of nematic liquid crystals on solid substrates.
(Wydawnictwo Politechnika Łódzka, 2015)Formulae used for description of anchoring energy of nematic liquid crystal aligned on solid substrates are reviewed. They are based on macroscopic approach considering the concepts of the easy axis and of the anchoring ... 
σporous sets of generalised nonexpansive mappings
(2014)In the paper we show that many generic results obtained in the last 40 years in the field of fixed point theory, are consequences of one general theorem. As an application we get some extensions of them and we study the ... 
Selected aspects of security mechanisms for cloud computing – current solutions and development perspectives
(2014)The security aspects of cloud computing, especially the security of data, become more and more important. It is necessary to find and develop the new mechanisms to secure the cloud. The problem presented in the paper ... 
Oscillatory properties of solutions of the fourth order difference equations with quasidifferences
(2014)A class of fourthorder neutral type difference equations with quasidifferences and deviating arguments is considered. Our approach is based on studying the considered equation as a system of a fourdimensional difference ... 
On the dependence on parameters for second order discrete boundary value problems with the p(k)Laplacian
(2014)In this paper we study the existence and the nonexistence of solutions for the boundary value problems of a class of nonlinear secondorder discrete equations depending on a parameter. Variational (the mountain pass ... 
On optimal credibility premiums in multiperiod insurance
(2014)This paper focuses on the problem of an optimal stream of premiums in a multiperiod credibility model. Formulas are derived for given claim history (screening) and individual information unknown for insurance company ...