A5025564039- Physics of Superconductivity and Magnetism
- Supply Chain and Inventory Management
- Superconducting Materials and Applications
- Infrastructure Resilience and Vulnerability Analysis
- Facility Location and Emergency Management
- Optimization and Mathematical Programming
- Process Optimization and Integration
- Advanced Control Systems Optimization
- Transportation Planning and Optimization
- Risk and Safety Analysis
- Scheduling and Optimization Algorithms
- Advanced Condensed Matter Physics
- Fuzzy Systems and Optimization
- Superconductivity in MgB2 and Alloys
- Magnetic properties of thin films
- Optimization and Packing Problems
- Forest Biomass Utilization and Management
- Rabbits: Nutrition, Reproduction, Health
- Vehicle Routing Optimization Methods
- Wildlife-Road Interactions and Conservation
- Phytochemicals and Antioxidant Activities
- Advanced Optical Network Technologies
- Simulation Techniques and Applications
- Magnetic and transport properties of perovskites and related materials
- Fermentation and Sensory Analysis
University of Nova Gorica
2023-2024
Umeå University
2015-2023
Univerzitet Za Poslovne Studije
2023
Iran University of Science and Technology
2021
University of Isfahan
2021
University of Tehran
2009-2018
University of British Columbia
1998-2018
PNPE Company (Iran)
2018
Sabancı Üniversitesi
2011-2016
Shiraz University
2014
We present here the microwave surface impedance of a high-purity crystal ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{6.99}$ measured at five frequencies between 1 and 75 GHz. This data set reveals main features conductivity spectrum thermally excited quasiparticles in superconducting state. Below 20 K there is regime extremely long quasiparticle scattering times, due to both collapse inelastic below ${T}_{c}$ very weak impurity ${\mathrm{BaZrO}}_{3}$-grown used this study. Above K,...
We have succeeded in growing very high-purity (99.995%) ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ crystals ${\mathrm{BaZrO}}_{3}$ crucibles and measured $\ensuremath{\Delta}\ensuremath{\lambda}(T)$ ${R}_{s}(T)$ at 1 GHz with various oxygen treatments. For an vacancy level of $\ensuremath{\delta}=0.007,$ \ensuremath{\Delta}\ensuremath{\lambda} ${R}_{s}$ essentially reproduce our previous results show no sign the existence two...
New measurements of surface impedance in ybco show that the c-axis penetration depth and conductivity below Tc exhibit behaviour different from observed planes. The never has linear temperature dependence seen ab-plane. Instead peak planes, microwave falls to low values superconducting state, then rises slightly 20K. These results transport remains incoherent Tc, even though this is one least anisotropic cuprate superconductors.
There has long been a discrepancy between microwave conductivity measurements in high temperature superconductors and the spectrum expected simplest models for impurity scattering d-wave superconductor. Here we present new type of broadband measurement surface resistance that finally shows some spectral features d(x2-y2) pairing state. Cusp-shaped spectra, consistent with weak nodal quasiparticles, were obtained 0.6-21 GHz frequency range highly ordered crystals YBa2Cu3O6.50 YBa2Cu3O6.99.
In the cuprate superconductor YBa2Cu3O6+x, hole doping in CuO2 layers is controlled by both oxygen content and degree of ordering. At composition YBa2Cu3O6.35, ordering can occur at room temperature, thereby tuning so that superconducting critical temperature gradually rises from 0 to 20 K. Here we exploit this study c-axis penetration depth as a function doping. The dependence shows d-wave surviving very low doping, with no sign another ordered phase interfering nodal quasiparticles. only...
In transportation via containers, unbalanced movement of loaded containers forces shipping companies to reposition empty containers. This study addresses the problem container repositioning (ECR) in distribution network a European logistics company, where some restrictions impose decision making an uncertain environment. The involves dispatching multiple types and various conditions (dirty clean) meet on-time delivery requirements other terminals, depots, cleaning stations. A multi-period...
Ground-based mechanized forestry requires the traversal of terrain by heavy machines. The routes that they take are often called “machine trails” and created removing trees from trail placing logs outside it. Designing an optimal machine network is a complex locational problem understanding how machines can operate on terrain, as well trade-offs between various economic ecological aspects. Machine designs currently manually based intuitive decisions about importance, correlations, effects...
Saccharomyces cerevisiae is commonly used for the production of alcoholic beverages, including cider. In this study, we examined indigenous S. and uvarum strains, both species found in cider from Hardanger (Norway), their strain-specific abilities to produce volatile non-volatile compounds. Small-scale fermentation apple juice with 20 strains was performed evaluate aroma-producing potential as a function amino acids (AAs) other physicochemical parameters under same experimental conditions....
This study investigated the chemical aromatic profiles of 60 volatile organic compounds (VOCs), including 21 terpenes, 6 norisoprenoids, phenols, 4 C-6 alcohols, and 23 esters, in Graševina wines originating from Slavonia Podunavlje sub-regions (Croatia). Headspace solid-phase microextraction gas chromatography coupled with mass spectrometric detection (HS-SPME-GCMS) was used to assess VOCs, a novel HS-SPME-GCMS method for determination terpenes norisoprenoids developed validated....
The foundations of efficient management are laid on transport networks in various scientific and industrial fields. Nonetheless, establishing an optimum network design (TND) is complicated due to uncertainty the operating environment. As a result, uncertain may be more realistic representation actual network. present study deals with TND problem which programming greedy randomized adaptive search procedure (GRASP) used develop original optimization framework propose solution technique for...
We address the most general case of multiperiod, multiproduct network planning problems, where we allow spoilage on arcs and storage at nodes. In our models, all parameters change over time products. The minimum-cost flow problem in discrete-time model with varying is investigated when and/or spoilage, some reformulation techniques employing polyhedrals are developed to obtain optimal solutions for a predefined horizon. Our methods rely appropriate definitions matrices that lead LP problems...
Measurements of the microwave $\mathrm{b\ifmmode \hat{}\else \^{}\fi{}}$ axis surface impedance a high quality single crystal ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{6.993}$ at five discrete frequencies between 1 and 75 GHz are presented. Despite complication oriented chain layer, underlying behavior ${\mathrm{CuO}}_{2}$ planes remains evident. It is demonstrated that conductivity can be adequately described by sum Drude term frequency independent background; former being...
Time-dependent multi-item problems arise frequently in management applications, communication systems, and production–distribution systems. Our problem belongs to the last category, where we wish address feasibility of such systems when all network parameters change over time product. The objective is determine whether it possible have a dynamic production–shipment circuit within finite planning horizon. And, if there no flow, goal infeasibility occurs approximate magnitude infeasibility....