KEYNOTE SPEAKERS
Mirzo Sharipov (Bukhara, Uzbekistan)

Thermal radiator sensor

The keynote presentation at the conference will focus on a groundbreaking study that addresses the complexities of measuring the thermomagnetic properties of thin magnetic films and introduces an innovative thermal radiation sensor.


This novel sensor utilizes a vanadium dioxide (VO2) film element, which effectively converts heat flow into a thermoelectric current. A key feature of the design is a reflective screen that is electrically isolated from the VO2 film, enhancing its functionality.The report will highlight the unique properties of vanadium dioxide, particularly its metal-insulator phase transition (MIPT) occurring near room temperature, which significantly improves the sensor's performance. By incorporating this material, the sensor can achieve high temperature sensitivity and precise measurements of thermal radiation.


The proposed design includes essential components such as electrical contacts with current leads, allowing for accurate data collection. The research not only simplifies the measurement process but also offers a fresh perspective on thermal radiation sensing technologies. This advancement holds promise for various applications in scientific research and industrial settings, paving the way for future innovations in thermal sensing methodologies.

Mario R Guarracino (Cassio, Italy)

Human axial progenitors generate trunk neural crest cells in vitro

The neural crest (NC) is a multipotent embryonic cell population that generates distinct cell types in an axial position-dependent manner. The production of NC cells from human pluripotent stem cells (hPSCs) is a valuable approach to study human NC biology. However, the origin of human trunk NC remains undefined and current in vitro differentiation strategies induce only a modest yield of trunk NC cells. Here we show that hPSC-derived axial progenitors, the posteriorly-located drivers of embryonic axis elongation, give rise to trunk NC cells and their derivatives. Moreover, we define the molecular signatures associated with the emergence of human NC cells of distinct axial identities in vitro. Collectively, our findings indicate that there are two routes toward a human post-cranial NC state: the birth of cardiac and vagal NC is facilitated by retinoic acid-induced posteriorisation of an anterior precursor whereas trunk NC arises within a pool of posterior axial progenitors.

Predrag S. Stanimirovic (Nis, Serbia)

A Blending Problem in Copper Production

Well-known mathematical models related to blending problem are extended and adjusted to the specific blending problem in copper production. Certain constraints are deduced from the process of making copper as well as from the ecological aspects of the production process. The models are applied to the production experience at the copper-smelting plant RTB Bor. The implementation of introduced models was made in the programming package MATHEMATICA. Numerical results corresponding to the introduced mathematical model were compared with results obtained by implementing the classical mathematical models.

Mirat Karibaev (Astana, Kazakhstan)

Effect of Hydration on the Intermolecular Interaction of Various Quaternary Ammonium Based Head Groups with Hydroxide Ion of Anion Exchange Membrane Studied at the Molecular Level

Currently, the primary challenge facing Anion Exchange Membrane Fuel Cells is their low chemical stability in alkaline conditions, primarily due to the degradation of quaternary ammonium-based head groups. This degradation negatively impacts the transport of hydroxide ions. Understanding the intermolecular interactions between various quaternary ammonium head groups and hydroxide ions is essential for enhancing the diffusivity of hydroxide ions and improving the chemical stability of these head groups.This study investigates the interactions between hydroxide ions and different quaternary ammonium head groups in anion exchange membranes at various hydration levels. The research employs classical all-atom Molecular Dynamics and molecular well-tempered MetaDynamics simulation methods. The quaternary ammonium head groups examined include: (a) pyridinium, (b) 1,4-diazabicyclo [2.2.2] octane, (c) benzyltrimethylammonium, (d) n-methyl piperidinium, (e) guanidium, and (f) trimethylhexylammonium.The results from the classical all-atom molecular dynamics simulations reveal distinct radial distribution functions between the nitrogen atoms of the different quaternary ammonium head groups and hydroxide ions. Furthermore, the diffusion coefficient analysis indicates that the mobility of hydroxide ions associated with head group (f) is lower than that associated with head group (c) across various hydration levels. This research provides valuable insights into optimizing quaternary ammonium-based materials for improved performance in fuel cell applications.