Lattice Quantum Chromodynamics (LQCD) is the lattice discretization of QCD theory, the mathematically formulation that describes the strong interactions between elementary particles. It is based on complex numerical algorithms that comes from a similarity one by one among the path integral in statistical mechanics and the Markov chain in the Monte Carlo algorithm. Solving QCD theory with Monte...
The field of Nanoscience and Engineering (NSE) is a modern and dominant field of research that is developing rapidly, already offering useful products and applications. Nanoscience is the scientific branch that concerns the research of interactions at the nanoscale (1-100nm) while nanotechnology deals with the management and reconstruction of matter at the nanoscale. The development of NSE...
Studies of the global distribution of lightning show that the annual number of lightning over land is higher than over the sea. However some research reveals that lightning activity is different over various geographical locations and highly variable on timescales (annual, seasonal, monthly and daily). It is of interest to analyze the spatial and temporal distribution of lightning for specific...
The phenomena of electronic emission, in general, and thermoelectronic emission, in particular, seems that have already been studied well enough and there is nothing left to do. The electron beam, as a tool in the processing of materials is very convenient, because it does not cause changes in chemical composition and ensures processing in micrometric and nanometric scales.
It is...
In anticipation of JWST data, today’s study of early Universe galaxies focuses on preparations for efficient data handling. For that reason, in our previous work (Burgarella et al. 2021, in press), we constructed an IR template which is based mainly on the ALPINE data sample with an addition of a few other well-studied galaxies, which includes galaxies in the redshift range 4.5 $<$ z $<$ 6.2....
Flat-band (FB) photonic lattices are attracting substantial attention of researchers since they provide an excellent platform for studying various fundamental physical phenomena difficult to achieve in the condensed matter systems. In that regard, some of those phenomena demonstrated in the last two decade are discrete solitons, dynamical localization and Anderson localization in disordered...
The dynamic of the information distribution is complex and affects everyday life, especially with the multiple ideas that are being released in social networks. These multiple ideas often have competing nature for the same nodes of the network. In this work we will discuss two competitive influence diffusion models in social networks. First, we take in consideration the competitive cascade...
Group velocity control of light is of fundamental as well as practical interest for the construction of various optical devices such as optical buffers and quantum memories. In recent decades, great attention has been paid to the study of conditions and techniques for obtaining subluminal and superluninal light. It is found that the presence of Kerr nonlinearity can be usefull tool for group...
Determination of the maximal expected magnitude (Mmax) of future earthquakes is one of the most important part of seismic hazard and risk assessment. In this research, an attempt for determining the Mmax of the three neotectonic zones in North Macedonia was made, based on available seismological data for last 42 years. Two approaches were used: first one determining Mmax using the...
The aim of the present study is the description of the implementation and operation of an integrated modeling system that focuses on the Urban Heat Island and its impact on human health. The modeling system, used for both short-term prediction and future projection, was developed on two levels:
a. The UHI forecasting system which produces high-resolution (250 m) UHI-related products,...
The present study focuses on the description of a versatile and flexible air quality monitoring and forecasting system. The system provides environmental information and advice to stakeholders and citizens via proper hardware & software infrastructure, scientific expertise and computational excellence. It is a combination of three-dimensional air quality models (WRF/CAMx), innovative models...
The energy that comes from the source of ionizing radiation is enormous and quite unused. Using energy from ionizing radiation is a novel concept, while so far in the literature (to the best of our knowledge), only beta radiation has been treated as a possible source of energy (Quenon 2021). This paper focuses on utilizing gamma radiation energy using the Cobalt-60 radiation source. Direct...
The problem of pollution in Serbia is severe. In winter, concentrations of PM2.5 and PM10 often exceed the permitted values. In addition to official automatic stations for measuring air quality, it is useful to have low-cost sensors that are available to everyone. The benefit of this type of measurement lies in the fact that in addition to understanding the overall problem of pollution,...
Introduction. Trying to find out what should be understood by ‘climate’, the inquisitive reader is surprised by the lack of sufficient clarity about the content of this concept even today, although the term was used in antiquity and literally translated from Greek means "slope" (of the Sun's rays relative to the Earth's surface). The purpose of the study is to trace the formation of the...
Flatband (FB) photonic systems have been in the spotlight of researchers since they represent an advantageous testbed for studying transport and localization properties at the linear level [1]. Among variety of platforms where flatbands have been realized photonic lattices have been established as the ideal ones, since working with them is very comfortable - they are easy to manipulate with...
Coherent beam combining (CBC) is denoting a group of methods developed for achieving higher power/energy and for enhancing the spectral brightness of laser emission at preserved beam quality by combining several high-power laser beams (or sub-beams) [1]. On the other hand, the spectral broadening of coherent optical pulses is inevitably necessary for their compression in time. The beam...
Technology has the potential to dramatically improve our everyday life aspects, including the time we spend in the educational environments. If we want to add the teaching means and methods, then one of the solutions would be to include the smartphones in it.
The purpose of this paperwork is their use as an experimental tool to aid the students who study physics in a way that their concepts...
The term climate change refers to the change in the global climate and to changes in meteorological conditions that extend over a large scale of time. Such changes include statistically significant fluctuations in the average state of the climate or its variability, extending over a period of decades or even more years. Climate change is due to natural processes, as well as human activities...
Here we study the flux densities at 1380, 4908 and 15365 MHz, as well as the radio spectral index distribution of 3C 84, a Double Radio source Associated with Galactic Nucleus (DRAGN). 3C 84 is the dominant giant elliptical galaxy in the Perseus cluster, and thus very interesting for our research. This famous radio galaxy Perseus A has Relaxed Double classification because it has the large...
Τhere is a strong demand for new energy sources due to the growing population and limited natural resources. Among the different renewable energy resources, thermoelectric material plays a key role. Selenides compounds, such as Ag2Se and Cu2Se, have received a lot of attention because of their interesting properties, low toxicity, and abundance. Particurarlly, Ag, Cu, and Se are less toxic...
Nature has developed materials, objects and procedures that occur in the macro-scale as well as the nanoscale. The results of millions of years of biological evolution and the optimized “techniques” developed by the organisms are available to scientists who seek new ideas by studying the solutions provided by nature. The scientific field that allows man to imitate nature and to develop...
Discrete Time Quantum Random Walk Search (DTQRWS) is quantum search algorithm that is quadratically faster than its classical counterpart. It can be used to search on graphs with arbitrary topology. Some structures, like Hypercube offer potential for practical applications. This quantum algorithm is very sensitive to the precision of constructing the operators of both mark and traversing...
A numerical 0D global model is developed with an aim to study the influence of air and water vapour impurities on electron energy distribution function and chemical composition of atmospheric pressure helium plasma, focusing on the main reactive oxygen and nitrogen species. Model includes 1488 reactions among 74 species, taken from the literature [1,2]. Rate coefficients for electron impact...
Inquiry-based learning is an important pedagogical approach through which teachers can introduce students to the world of science and scientific research. Learning through inquiry is an active learning that requires students to take responsibility, make decisions, cooperate and self-assess. The role of the teacher is crucial when using the research approach in physics lessons, so it is...
Often in physics classes we are faced with the need for demonstration attempts. Some physics classes can be well organized using certain educational content from the numerical assignments and experimental assignments given at the International Physics Olympiads. As mentors of students and participants in the Olympics, we want to share some experiences from using texts, draft schemes or whole...
Over the last 20 years more inventions have emerged from NanoScience and Engineering (NSE) than any other scientific field (1). By 2030, its implications in regards to science, technology innovation, economy and society are expected to overcome even the ones from the digital revolution. Scientific research and development of technological applications in the nanoscale has provided every field...
Μost physics professors would agree that laboratory experience is an important part of science education. Learning through experiments encourages students to bring scientific thinking to the processes of a strong, innovative, and logical path between concepts and phenomena. Virtual labs through computer simulation-based methods of studying physics happened to be one of the most powerful...
The main idea of this study is to investigate the Dst variations in the X component of the Earth's magnetic field and their latitudinal distribution in the conditions of geomagnetic disturbance in February 3, 2022. For this purpose, data from the world database of geomagnetic observatories INTERMAGNET were used. Three sectors have been selected: (i) East Europe, (ii) West Europe, (iii) East...
Atmospheric aerosols, both natural and anthropogenic, have strong direct or indirect effects on the regional and global climate, air quality and human health. Their impacts depend mainly on the aerosol composition, particle size, and chemical-physical properties. The lidar technique is an effective instrument for near real-time observations of the aerosol mass stratification and optical...
We present one part of our long-term photometry program, targeted at studying the shape and spin state of asteroids. The CCD photometric observations were carried out in the first half of 2022 with two telescopes at the Astronomical Station Vidojevica (Serbia): 1.4m Ritchey-Chrétien-Coude "Milanković" and the 60cm Cassegrain "Nedeljković" telescope.
In this work, lightcurves, the synodical...
In this paper is presented a mechanical analysis of dollar index trend, as one of the possibilities of a new review of data obtained on the stock market exchange. The close values of the dollar index on every first day of the month from January 1, 1971 to January 1, 2021 has been considered as coordinates of unit mass particle. Dollar index close values time series were transformed to the time...
Milutin Milankovitch published his influential research ”Canon of Insolation and the Ice-age Problem” in Belgrade, Serbia, 1941. His work is important nowadays in terms of studying climate changes. In this paper we consider new scientific knowledge about solar insolation. Periodic solar activities such as sunspots and the magnetic field cycle or grand solar minimum/maximum affect the Earth’s...
Light radiation is one of the phenomena that is constantly in the attention of researchers and practitioners. The laser has become a contemporary tool that is applied in physics, technology, medicine, etc. Today we can practically not imagine our life without it, but it is necessary to obtain monochrome radiation that can be focused and directed more easily, which in special situations have a...
The spectroscopic properties of $ns^2$ ions in alkaline halide crystals are old and well-studied [1]. Regarding the spectroscopic properties of ns2 ions doped in alkaline-earth fluorides, these are less investigated. Few authors [2,3,4] have studied the optical properties of CaF$_2$:Pb$^{2+}$ crystals and LuAG:Ce single crystalline films. Recently, the effect of gamma irradiation on the...
The external geomagnetic field is known to exhibit multifractal behavior as deduced by analyzing the extensive magnetic field time series. Usually the internal magnetic field is not discussed because its changes occur with a much longer time scale. However, one can make use of the existing palaeomagnetic measurements of the dipolar (internal) field that offer a broad view on the geological...
An Individualized Education Plan (IEP) is a specific document, which provides the opportunity for the pupils with development disorders, disabilities, and children from the sensitive groups, regardless of their material status, to have the access to all levels of education1. Preparation and implementation of IEPs in physics teaching for elementary schools are done on the basis of a unique...
A number of students, as their field of interest, prefer social sciences to science. History of science can be the bridge between science and social sciences.[1],[2] Therefore, it can be a useful tool for getting students with an affinity for social sciences interested in physics and vice versa, it can get students with an affinity for physics interested in social sciences. History of physics...
This work aimed to review the optical properties of aerosol particles and the approximations developed to describe them. Aerosol particles have a significant effect on the total radiation balance. During the interaction of light with matter, two main phenomena can be observed, scattering and absorption of light, depending on matter's wavelength and optical characteristics of aerosols.
The...
In this work the seasonal – diurnal variations of lightning over two different areas: continental (Bulgaria) and maritime (Black Sea) are analyzed based on a 10 year long dataset (March 2005-February 2015) provided by the ZEUS lightning detection network operated by the National Observatory of Athens. The number of recorded flashes and the flash density at time intervals (annual, seasonal,...
Distance teaching in an electronic environment involves the application of different pedagogical approaches and methods than those used in traditional face-to-face teaching and interaction with students. At the same time, unequal opportunities for students to learn fully from a distance in an electronic environment and the lack of adequate adaptation of the distance learning process to their...
This work is aimed to study the spatial distribution of the magnetic field components variations during substorms. In this purpose, two isolated substorms, the substorm on 22 March 2013 at ~23:12 UT and the one on 14 January 2016, with central meridian over Europe have been chosen. Magnetic field data from INTERMAGNET, SuperMAG and IMAGE databases have been used. The X and Y variations due to...
We define and fully characterize the witnesses based on second moments detecting steering in Gaussian states by means of Gaussian measurements. All such tests, which arise from linear combination of variances or second moments of canonical operators, are easily implemented in experiments. We propose also a set of linear constraints characterizing steering witnesses. Given an unknown quantum...
Increased energy consumption worldwide, combined with reduced energy reserves and environmental protection, leads to the necessity of alternative sustainable energy generation methods such as thermoelectric energy conversion. In last few decades, considerable research effort has been concentrated to develop materials which can be used to transform heat into electric power. These materials have...
In this study, Ti-B coatings were fabricated by a selective electron-beam surface alloying technology. On a pure titanium substrate, a boron film with a thickness of about 1 μm was deposited by an electron-beam physical vapor deposition technique. During the deposition procedure, the accelerating voltage was 50 kV, the electron beam current was 18 mA, the beam diameter was 10 mm, and the...
In the present work, the electronic and optical properties of (B, $TM$) co-doped ($TM$ = Pt, Ta, V) anatase TiO$_2$ were investigated using modified density functional theory (DFT) calculations, in order to provide insight into the synergistic effect of co-doping with various elements on the photoactivity of TiO$_2$. We considered two combinations for each co-doped sample, with $TM$ atom...
Assessing the variability of climate extremes in changing climate is one of the greatest and most important challenges in climate science, not only because these events are rare, but also because they can be accompanied by devastating consequences. Climate change in the future could lead to an increase in the frequency, intensity and duration of extreme events and the greatest impact on the...
Introduction: According to the results from several studies [for example 1,2] high-energy positive solar particles fluxes, invading Earth are correlated with mortality from ischemic heart diseases, Ischemic heart diseases, according World Health Organization (WHO) statistics [3], are the first in the list of the 10 most frequent causes of death in 2016, regardless of the state's economic...
The magnetic properties of a ferromagnetic bilayer Ising system consisting of two monolayers with different spins 1/2 - 1 and different interaction constants coupled together with an interlayer interaction are studied by using the lowest approximation of the cluster variation method. The temperature dependences of the layer and total magnetizations are investigated extensively and observed...
In this paper we present the three cases of innovative pedagogy; the teaching of physics was conceptualized and designed in a such way to bring outcomes in order to serve the society.
The first one exploits the backwards pedagogy where physics was thought to non-physics students; the students were future teachers of primary school. By prototyping the microgenerators we promote harvesting...
A few change in the global mean temperature and noticeable changes were observed in some elements of the climate around the world. One of the most popular derivatives of the global warming is the increase of the frequency of extreme weather phenomena. The most popular extreme weather events observed in the Albanian territory during the last three decades are the days of high precipitation...
Complex networks theory provides methods and tools for studying the structure and dynamics of various complex systems. Real complex networks, although representing very different complex systems, have some common properties. They have broad degree distribution, small average shortest path compared to their size, high clustering, and degree-degree correlations. Knowledge about how these...
A social group is a characteristic element of every social system on a mesoscopic level. The growth of social groups is indissolubly connected to the structure and dynamic of a social system. Social systems differ in their purpose and the type of communication and activity their members engage in. At first glance, one would expect that the growth of social groups in these different systems is...
The direct approach to model evaluation is to compare regional climate model (RCM) output with observations and analyze the resulting difference in order to identify deficiencies in the model itself which can be reduced by its improvement or taken into account for understanding and interpretation projections of future climate change. In previous studies, it was noticed that most of EURO-CORDEX...
The world consists of millions of different living organisms. Through their huge diversity in terms of characteristics they have managed to live in all the possible extreme conditions in the planet that we live in. Every organism had millions of years to adapt to its environment and the results of this continuous evolution are there to be studied in order to benefit human lives through the...
Since the very beginning, Regional Center for Talents “Mihajlo Pupin” in Pančevo had a physics group. Over time, the number of classes has grown, but so did the number of students and mentors. Consequently, the achievements on national and even international competitions in physics were growing steadily. After first few years spent in experimenting different possibilities in the field of work...
The idea of this paper is to develop a method for determination thermal diffusivity, linear expansion coefficient and thickness of a semiconductor sample from photoacoustic phase measurement by using neural network. The neural network has been trained on a large basis of photoacoustic phases obtained from a theoretical Si n-type model in the range of 20Hz to 20kHz. The advantages of using a...
Optical emission spectroscopy technique was used to measure rotational and gas temperature distribution in the cathode-sheath region of an abnormal glow discharge operated in hydrogen. The rotational temperature of excited electronic states of H2 was determined from the relative line intensities of the R-branch of the Fulcher-$\alpha$ diagonal band $d^3\Pi_u^+, \nu' = 0 \rightarrow...
We report results of an experimental study of shapes of Ne II 369.421 nm, Ne II 371.308 nm, and Ne II 372.711 nm lines in the cathode sheath (CS) region of an abnormal glow discharge in pure neon. The experimental profiles were studied using optical emission spectroscopy (OES). Several strong ionic neon lines from the near UV region exhibit extensively broadened wings of their spectral...
Stark width and shift simultaneous dependence on the upper level ionization potential and rest core charge of the emitter has been evaluated and discussed. It has been verified that the found relations, connecting Stark broadening parameters with upper level ionization potential and rest core charge of the emitters for particular electron temperature and density, can be used for prediction of...
A software application developed from open-source code libraries has been used to analyze digital video recordings of physical system evolution. The process of calcium carbonate tablet decomposition in deionized water was recorded with a digital video camera at 12 Mp resolution and 30 frames per second. The tablets were formed by compressing micronized CaCO3 powder with a cylindrical press...
Ultracold-atom simulators have provided important insights into charge and spin transport in the two-dimensional Hubbard model [1, 2]. However, theoretical tools to compute quantities directly measured in experiments, such as space- and time-resolved charge/spin densities following a quench of an external density-modulating field, are still scarce. Here, we devise the alternating-basis quantum...
Chemical reactions in the avalanche plasma lead to formation of deposit on the electrode surfaces thus causing degradation of operating characteristics of gaseous detectors and limiting their long-term use in particle physics experiments. Various surface non-destructive complementary techniques were employed for detailed characterization of deposit accumulated on the surface of electrodes...
Heavy-ion collisions at relativistic energies offer an unique opportunity to investigate the properties of highly excited dense nuclear matter in the laboratory. Strange hadron production in nucleus-nucleus collisions is believed to be an important tool to study the dynamics of the produced QCD matter. Transverse momentum spectra of strange particles (${\rm K}^{0}_{\rm{S}}$, $\Lambda$,...
Even the environment at future e+e- colliders is practically QCD background free, there is a large number of processes with high cross-sections and/or similar topology as the Higgs signal. Minimization of the statistical uncertainty calls for optimized event selection w.r.t. the statistical significance. This is where the Multivariate Analysis (MVA) is employed, separating the signal from...
Bose-Einstein condensate is state of matter that is the future of the quantum computers. One of the crucial properties of Bose-Einstein condensate is quantum tunneling. In this paper are listed previously achieved results by other authors considering the factors that affect tunneling in Bose-Einstein condensate, such as form of interaction between particles, shape of potential well and the...
It is found from viscous hydrodynamics that the QGP created in ultra relativistic heavy-ion collisions has different longitudinal and transverse pressures at early times. This occurs due to the large momentum space anisotropy in the p_T-p_L plane. This momentum space anisotropy can cause plasma instabilities that are largely responsible for the thermalization and isotropization of the system....
Lead selenide (PbSe) is a semiconductor of the cubic structure whose bandgap is 0,27 eV. It belongs to a group of essential materials for developing uncooled mid-IR detectors. This material also proved to be an excellent thermoelectric, offering a few advantages compared to other materials. It is also worth mentioning that doping can readily modify its properties. In this work, we have studied...
In experiments searching for rare nuclear events (neutrinoless double beta decay, dark matter, etc.) detailed knowledge of background is necessary in order to achieve reliable analysis and interpretation of experimental data [1]. In the ground-based laboratories, the significant contribution to the background of the detector spectrum originates from the interaction of cosmic rays with...
Slow evaporation as a crystallization technique can allow the growth of large oriented crystals. In the experiments performed, sodium chlorate crystals were obtained by evaporating microdroplets of a saturated aqueous solution both at ambient conditions and at a constant temperature of 31.5ºC in a closed container. The solution was saturated at a temperature of (31.5±0.1)ºC. A 5 μL drop of the...
A simple framework for obtaining simultaneous energy and interaction position measurements from gamma particle interactions was developed in simulation and in hardware. The framework provides a method for obtaining the time of arrival and three methods for obtaining the interaction position, centroid, multiple maxima and an ML algorithm trained by simulation. Results of the simulations and the...
Determination of 226Ra and 222Rn activity concentration in water has been recognized as one of the most important tasks in the preservation of public health, since increased content of these radionuclides in drinking water may lead to increased health risk. Generally, the presence of 226Ra in water samples is potentially dangerous due to its radiotoxicity and has been related to the cancer of...
In this talk we discuss the CP violation in the Higgs sector under assumption that Higgs is a mixture of CP even and odd states. Study is done in ZZ-fusion, at the intermediate energy stage of CLIC, in full simulation of a detector for CLIC and machine and physics related backgrounds. By measuring the properties of electron and positron in the final state, selecting the Higgs dominant decay...
Microscope resolution is the shortest distance between two points on a sample that can be distinguished as separate entities. Due to the wave nature of light and the phenomenon of diffraction, it is fundamentally limited: even under theoretically ideal conditions and optical components, the microscope has a finite resolution.
In this paper, we determined lateral and axial resolution of a...
The research topic is calculation of the drift velocity of electron transport in $N_2$ gas under the influence of an external crossed electromagnetic field, E x B. A Monte Carlo simulation code has been used to obtain non-equilibrium electron energy distribution function within one oscillation of external crossed fields. In simulation, E is aligned with the z-axis, while B is parallel with...
Among various ferrites, nanosized nickel ferrite is one of the most frequently employed materials for production of electronic materials due to a set of outstanding physical and chemical properties. Doping with various atoms is a common choice when it comes to the development of new materials with target properties. Rare-earth elements have been frequently used in different research areas in...
Magnetization of two dimensional O(3) Heisenberg ferromagnet is investigated using perturbation theory for type-B Nambu-Goldstone bosons, quantum Monte Carlo simulations an nonlinear spin wave theory.
By calculating loop corrections to the magnon self-energy, in combination with QMC data and spin wave theory, we discuss the applicability of effective field theory for two dimensional O(3)...
We are reporting the results of the first experimental determination of the collision-energy dependence of the muon transfer rate from the ground state of muonic hydrogen to oxygen in the energy range below 100 meV. These results shed new light on the kinematics of the processes involving exotic atoms, and may serve as benchmark for the full-scale quantum-mechanical calculations of low-energy...
Haldane model is devoted to explore the electron spectra of honeycomb hexagonal 2D lattice. In this paper we treat its connections with the excitonic spectra of two types of molecular excitations, Frenkel excitons (FEs) and Charge Transfer Excitons (CTEs) and study the generalized Haldane model in 2D Lattices of hexagonal symmetry. Excitations with transition dipole moment perpendicular to the...
The emphasis of the talk will be related to the physics studies at the KAHVELab, and on top of that I will be mentioning current status of hardware development at our laboratory.
The analysis focuses on FCNC decay channel $pp \rightarrow DD \rightarrow XjZj \rightarrow 4j 2 \mathcal{l}$ where $X$ represents a boson that decays hadronically and $Z$ boson which decays leptonically. The $D$...
The mechanisms of crystal growth depend on the temperature and supersaturation of the solution. As a result of their competition, different growth regimes may occur. The results of previous studies have shown that in the range of supersaturation of 0.66−1.56%, the {100} sodium chlorate crystal faces grow according to the model of spiral growth [1]. In order to determine the possible influence...
Wall painting technique identification is an ongoing problem, as identification criteria are still a matter of discussion. The main purpose of this study is to examine the possibility of detecting organic binders as a function of the maximum developed temperature in the case of a fire. This is important in the case of wall paintings, as the presence or absence of organics is one of the...
We study Josephson effect in a junction with arbitrarily oriented d-wave superconducting electrodes connected through two ferromagnets with noncollinear magnetizations. We solve the scattering problem based on the Bogoliubov-de Gennes formalism, extended to the case of anisotropic superconductors and presence of spin flip scattering due to ferromagnet interlayer. We investigate mutual...
ZnO nanoparticles (NPs) applied in sufficient doses exhibit cytotoxic effect in vitro [1]. However, selective cytotoxicity towards certain cell types is also registered [2]. Proposed selectivity of ZnO NPs for cancer cells is an issue of special importance for the development of new drugs based on ZnO. By generating the reactive oxygen species (ROS) and by acting themselves as an electron-hole...
We present a resonant inelastic and elastic X-ray scattering (RIXS/REXS) study of epitaxial YBa2Cu3O7/Nd1-x(Ca1-ySry)xMnO3 heterostructures (NYN). We show that the Copper charge density wave (Cu-CDW) order of the near optimally doped YBa2Cu3O7 layers can be strongly modified via the hole doping and tolerance factor of Nd1-x(Ca1-ySry)xMnO3, i.e. by changing x and y.
At x=0.35 we observe a...
Iron oxide based magnetic nanoparticles (Fe3O4, gamma-Fe2O3), are widely investigated in biomedicine, especially as diagnostic and therapeutic agents. They can be used as imaging contrast agent, drug-delivery nanocarriers, intracellular hyperthermia mediators, etc. If their size is in the range of 4-28 nm, they show superparamagnetic behavior, with magnetic saturation comparable to that of...
In this talk we address a full simulation of experimental measurement of the Standard Model Higgs boson decaying to two photons at 3 TeV center-of-mass energy at Compact Linear Collider (CLIC). Since photons are massless, they are not coupled to Higgs boson at the tree level, but rather are created in a loop exchange of heavy particles either from the Standard Model or beyond. Any deviation of...
CLIC is a mature option for a staged linear electron-positron collider that could run from 350 GeV up to 3 TeV center-of-mass energy. Measurements of the product of a Higgs production cross-section and branching ratio of the Higgs boson, serve as input to a global fit of Higgs properties (couplings and width) in a model-independent or model-dependent way. In this talk we present the full...
The recent synthesis of two-dimensional (2D) silicon carbide (SiC) [1] experimentally proved the existence of 2D carbides, a new class of semiconducting materials with the honeycomb structure. Considering the point defects, one of the simplest structural deformations in 2D materials, we examined the prospect of employing them for the band-gap engineering of a SiC monolayer. Applying density...
Electron-phonon (e-ph) interaction is responsible for majority of transport phenomena in condensed matter. In this work, we consider the short-range (localized) e-ph interaction described by the Holstein Hamiltonian. We develop numerically exact path integral Monte Carlo (PIMC) methods to obtain current-current correlation functions (CFs) and polaron mobility of one-dimensional Holstein...
The Monastery of the Ascension is located in Sykea, a village of Elassona town near Mount Olympus, with a significant contribution in the area regarding charity and culture [1]. Its catholicon was constructed and painted in about the mid-17th century, while the iconographer remains unknown. The purpose of this study is the materials characterization of the catholicon’s wall-paintings and the...
Muonium formation in muon-hydrogen ($\mu^+-\rm{H}(1s^1)$) and muon-helium ($\mu^+-\rm{He}(1s^2)$) charge-exchange collisions is considered at intermediate and high impact energies, from 10 keV to 1 MeV. The prior form of the three-body boundary-corrected first Born approximation (CB1-3B) [1] is used for calculations of the state-selective total cross sections $Q_{nl}$ for single-electron...
With deep learning becoming very popular among LHC experiments, it is expected that speeding up the network training and optimization will soon be an issue. To this purpose, we are developing a dedicated tool at CMS, Neural Network Learning and Optimization library (NNLO). NNLO aims to support both widely known deep learning libraries Tensorflow and PyTorch. It should help engineers and...
In the current work, we present a modeling approach for simulating mesoscopic phenomena related to lubrication. Our geometry allows a variable confinement gap and a varying amount of lubricant in the gap. We have implemented and compared several coarse-grain molecular dynamics descriptions of an ionic liquid (spherical model and model with cation tail) as a lubricant that can expand into...
Precise spectroscopy of light atomic and molecular systems gives us new insides in the fundamental laws and physical constants of nature [1]. In particular, exotic atoms like antihydrogen and antiprotonic helium could also allow comparison between matter and antimatter characteristics and test of CPT symmetry [2]. From theoretical point of view, development of very accurate techniques like...
We discuss cosmological perturbations of the scalar type in the spatially flat FRWL background during inflation. There are five independent scalar perturbations. Four of them are perturbations of the FRWL metric and the fifth one represents perturbations of a scalar field. As usual, a scalar field is used to describe dominant (perfect) cosmological fluid responsible for inflation [1].
These...
In a series of recent papers we have suggested to use the information on the so-called difference asymmetries (i.e. the difference between the asymmetries in the production of particles and their anti-particles) in Semi-inclusive deep inelastic scattering (SIDIS) in order to determine the Boer-Mulders functions. Here we comment on how our analysis can be used to find the mean value of the...
The DBI Langrangian (or a family of DBI Lagrangians) has been known and widely considered in many different fields of physics.
For instance, classical and quantum dynamics of tachyon systems have been examined, describing spatially homogeneous scalar fields, in the limit of classical and quantum mechanics.
Understanding and modelling of these systems are of particular importance in the...
Objective diagnosis on site, in real time is still a challenge for skin lesions, specifically pigmented skin lesions. Different optical tools are currently under development or clinical implementation process to assist this process. Some of the techniques applied are diffuse reflectance spectroscopy, fluorescence spectroscopy, even confocal fluorescence microscopy. They provide information...
Our system consists of planar magnetic structures created by the assembly of point dipoles. The departure point of this work is the known degeneracy of ground states in planar square and triangular packings. The square lattice has a particularly interesting antiferromagnetic ground state exhibiting a transformation from percolating antiferromagnetic chains of dipoles pointing head-tail to a...
Polarimetry is one of the emerging optical modalities for implementation in diagnostic. Polarimetric measurements are mostly informative about structural changes in the tissue. Collagenosis diseases affect connective tissue and arise from changes in collagen structure or metabolism. Their diagnosis is quite challenging, since the symptoms are not unambiguous.Considering that collagen is...
Polymer nanocomposites are prepared by a simple and environmentally friendly technique. First, sheets of isotactic polypropylene (iPP) and atactic polystyrene (aPS) were prepared by compression molding with Servitec Polystat Press 200 T at 473.15 K and 3.0 MPa pressure followed by quenching in water at room temperature. The polymer sheets thus prepared were then immersed separately in three...
Installation of a MIP Timing Detector (MTD) to the CMS detector will introduce new capabilities and will allow precise timestamp assignemnt to traversing charged particle up to pseudorapitidy of |eta|=3. Targeted timing resolution is 40 ps per track, which will help reduce the pile-up conditions expected at the High-Luminosity LHC. The endcap region of the MTD, Endcap Timing Layer (ETL), will...
Introduction
The European Standard EN1788 (2001) [1] defines the procedure of silicate minerals’ extraction from food products and their use to distinguish irradiated from non-irradiated food products, based on Thermoluminescence (TL). The extraction of the minerals is important since most of the food products, such as dried oregano, are not heat-resistant, thus TL cannot be applied to...
Building materials may contain to some extent naturally occurring radioisotopes 226Ra, 232Th (from uranium and thorium decay chain) and primordial radioisotope 40K. Those materials are often referred to as NORM (Naturally Occurring Radioactive Materials) [1, 2]. Owing to the presence of radioisotopes, using NORM in buildings can present a potential health risk to the population, due to the...
Self-avoiding polygons with bending stiffness and attractive nearest-neighbor interactions, are studied on three simplex fractal lattice. Via an exact set of restricted generating functions, the number of contacts as a function of the Boltzmann weights associated with stiffness and interaction energies, is calculated numerically. Calculation reveals that the number of contacts is...
Harmonium is a system of two electrons whose Coulomb interaction with the nucleus is replaced with harmonic potential. Such a theoretical system is widely used for studying density functional theory, electron correlation, entanglement and black body entropy. It is of great importance to examine spherically confined harmonium in plasma environment, since the results can be useful for...
Mobility of charge carriers is a physical quantity that determines the performance of semiconductor electronic and optoelectronic devices. It is still a significant challenge to predict its value starting from the crystal structure of the material. To date, such calculations have been performed only for few semiconductor materials, such as Si, GaAs and GaN [1]. In this work, we study the...
A phenomenological framework for the relaxation dynamics of quantum lattice model with multi-well potentials is given in the case of deformed $Sn_{2}P_{2}S_{6}$ ferroelectric lattice. The framework is based on the combination of statistical equilibrium theory and irreversible thermodynamics. In order to study these dynamics in a connected way we assume that the dipole ordering or polarization...
The forthcoming measurements at RHIC and LHC will generate heavy flavor data with unprecedented precision, providing an opportunity to utilize high-$p_T$ heavy flavor data to analyze the interaction mechanisms in the quark-gluon plasma. Experimentally observed suppression mass hierarchy, and investigation of the dead-cone effect in radiative energy loss, inspired us to study the mass hierarchy...
The superconducting quantum interference proximity transistors, abbreviated SQUIPTs, are interferometers based on a Josephson junction (JJ) that use the superconducting proximity effect to achieve high sensitivity in the measurement of magnetic fields. SQUIPTs can provide phase control of the thermal conductivity at very low temperatures by modifying applied magnetic flux [1]. This article...
Electromagnetic response of a superconductor subject to incident electromagnetic wave is studied phenomenologically and within nonequilibrium equations of superconductivity.
A number of optical techniques have been investigated for implementation in the clinical practice for cancer detection in the gastrointestinal tract. The aim of those, so called “red-flag” modalities is to navigate and point out suspicious areas with pathological alterations in the tissue. Autofluorescence diagnostic is largely preferred, since it is patient friendly and cost-effective. The...
Due to growing demands for minituarization and small electronic devices, the production of novel composite material enhanced by the incorporation of nanomaterial fillers such as multiwall (MWCNT) and singlewall carbon nanotubes (SWCNT) is the subject of widespread research today. The investigations also shown that SWCNT explore better performance compared to MWCNT structures. One of the most...
Since the intrinsic Josephson effects in high-temperature superconductors were first investigated by R. Kleiner and P. Muller, various kinds of new phenomena related to the ¨effects have been found [1-5]. In this work, the emission of terahertz electromagnetic waves from an intrinsic Josephson junction array (IJJA) embedded in an LCR resonant circuit is studied theoretically. A bias current is...
ATLAS, the largest particle detector at the Large Hadron Collider (LHC), had undergone a massive upgrade during the Long Shutdown 2, for proper operation under the high rates expected from High-Luminosity LHC (HL-LHC) era. Two New Small Wheels (NSW) have been constructed and installed, replacing the old SWs, at the most forward region of the ATLAS muon spectrometer and they are the first new...
The cell proliferation is a process that takes place through the cell cycle. Normally there is a balance between cell proliferation and death, when mutations that occur in ADN interrupt this process resulting in the birth of tumors. The spread of tumor diseases has led to the need to develop different methods for treating tumors. One of the methods of treating tumors is also through...
Here we consider a model in which the dwell time of the tunneling on a multi-barrier quantum structure based on monolayer graphene is computed. This quantum system is composed by $N$ barriers and $N-1$ wells, at zero temperature, in which the spin-orbit effects and the carrier-phonon interactions are absent. In addition, one assumes that the dimensions of the system in the $x-y$ plane are...
We study pair production processes from vacuum of scalar particles and fermions in the presence of an external Coulomb field on de Sitter expanding universe assuming that, the quantum fields are minimally coupled with gravity. Our study is done in the chart with spherical space coordinates and the produced particles are described by the spherical wave solutions of the field equations. In this...
In this paper we present our three different research activities set at the different EU labs. Due to lack of scientific tools at the premises of the University of Montenegro this was the way that allows us to be successful in taking role and responsibility towards addressing the questions of high priority within LGAD Research and Design activities as a member of RD50 CERN Collaboration....
Ultramarine has been for centuries one of the most highly prized pigments of all traditional artists’ materials, due to its durability, excellent color, and its intrinsic value. For the production of the blue pigment Ultramarine, the rare semiprecious stone Lapis Lazuli is used, which has been mined since ancient times in mines northeast of Afghanistan, making it difficult to transport to the...
We review tubes [1,2] consisting of magnetic dipolar particles as a model for magnetic nanostructures and show, in particular, how to obtain anti-ferromagnetic states. The tubular assemblies of magnetic particles can be realized with different thickness, length, and lattice structures. The universality of dipolar interaction concerning the length scale allows the realization of these systems...
As part of the Compact Muon Solenoid (CMS) experiment, the Electromagnetic CALorimeter (ECAL) detector control system (DCS) is preparing for major tests and upgrades of both software and hardware for the next long shutdown 3 (LS3). Interlocks of Cooling system, High Voltage (HV) and Low Voltage (LV) by the PLC system will be tested, as well as lowering the temperature at which the detector is...
The Self-emulsifying drug delivery systems (SEDDS) containing lipids, surfactants, and co-surfactants are a promising oral platform for drugs with problematic solubility and permeability. However, especially those systems representing a liquid phase may show some shortcomings, such as in vivo drug precipitation, limited lymphatic transport, and storage problems. These shortcomings can...
