TITLE
APPLICATION OF LARGE LANGUAGE MODELS AND NATURAL LANGUAGE UNDERSTANDING IN MULTI-AGENT TOURIST GUIDE FOR GABROVO

AUTHOR(S)
Iliya Iliev Nedelchev

ABSTRACT
This paper explores the integration of Large Language Models (LLM) and Natural Language Understanding (NLU) within a multi-agent tourist guide for Gabrovo. In the context of the digital transformation of the tourism industry, this study examines how advanced NLP technologies enhance the tourist experience. The multi-agent tourist guide, powered by LLM and NLU, delivers personalized recommendations, historical insights, and real-time assistance to travelers. This research emphasizes the transformative potential of these technologies in tourism by fostering engagement, promoting cultural immersion, and streamlining navigation. Furthermore, the study highlights the broader implications of AI-driven language models and understanding in preserving cultural heritage. By harnessing LLM and NLU, this tourist guide redefines exploration in Gabrovo and symbolizes a shift in how individuals connect with cultural legacies worldwide. In essence, this paper underscores the significant impact of technology in reshaping multi-agent tourist guides, enriching traveler experiences, and preserving cultural identities in destinations such as Gabrovo.

DOI
www.doi.org/10.70456/IGFO3364

PAGES
138-143

DOWNLOAD
https://unitechsp.tugab.bg/images/2023/4-KS/s5_p15_v1.pdf

How to cite this article:
Iliya Iliev Nedelchev, APPLICATION OF LARGE LANGUAGE MODELS AND NATURAL LANGUAGE UNDERSTANDING IN MULTI-AGENT TOURIST GUIDE FOR GABROVO, UNITECH – SELECTED PAPERS - 2024, 138-143

TITLE
ENERGY STATES IN A CERTAIN TYPE COAXIAL GAAS/ALxGA1-xAS QUANTUM WELL WIRES AND ELECTRIC AND MAGNETIC FIELD EFFECTS

AUTHOR(S)
Abdullah BİLEKKAYA

ABSTRACT
In this work, the energy states of an electron that is confined in coaxial GaAs/Alx Ga 1-xAs quantum well wires with interesting geometry are investigated in the presence of electric and magnetic fields. The calculations are performed by using the finite difference method. The results are given as functions of the inner barrier width, electric and magnetic field strengths. It is found that the variations in the energy states, which may be useful in technological applications, depend strongly not only on the geometry of the wire but also on the applied electric and magnetic field in coaxial GaAs/Al x Ga 1-xAs quantum well wires.

DOI
www.doi.org/10.70456/UXHJ3221

PAGES
327-330

DOWNLOAD
https://unitechsp.tugab.bg/images/2023/7-FH/s17_p153_v2.pdf

How to cite this article:
Abdullah BİLEKKAYA, ENERGY STATES IN A CERTAIN TYPE COAXIAL GAAS/ALxGA1-xAS QUANTUM WELL WIRES AND ELECTRIC AND MAGNETIC FIELD EFFECTS, UNITECH – SELECTED PAPERS - 2024, 327-330

TITLE
WELDING OF TITANIUM AND ALUMINUM ALLOYS USING OSCILLATING ELECTRON BEAM AND NIOBIUM FILLER

AUTHOR(S)
Darina Kaisheva, Borislav Stoyanov, Vladimir Dunchev, Georgi Kotlarski, Maria Ormanova, Stefan Valkov

ABSTRACT
Titanium, aluminum and their alloys are increasingly used in a number of industries. Due to their very different thermo-physical parameters, obtaining a strong joint between them is rather difficult. Electron beam technology has been successfully applied to weld Ti/Ti alloys to Al/Al alloys. The aim of the present work is to investigate the influence of specific technological conditions, including the use of niobium filler, on the structure and mechanical properties of an electron beam welded joint of titanium alloy Ti6Al4V and aluminum alloy Al6082-T6. EBW was carried out at following technological conditions: accelerating voltage U=60 kV; beam current I b=25 mA; welding speed v=10 mm/s; section length of the along linear electron beam oscillation l=6 mm; oscillation frequency f=200 Hz. The Nb filler was deposited via magnetron sputtering method. The phase composition of the weld was obtained using X-ray diffraction (XRD). Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) analysis were used to investigate the structure of the welded joint. The Vickers microhardness in a line perpendicular to the weld seam in the middle depth was measured. The formation of intermetallic phases Ti3Al, TiAl, TiAl3 and NbAl3 was established, also proven by the measured high hardness, reaching 627 HV0.5.

DOI
www.doi.org/10.70456/OCYJ6922

PAGES
331-335

DOWNLOAD
https://unitechsp.tugab.bg/images/2023/7-FH/s17_p169_v1.pdf

How to cite this article:
Darina Kaisheva, Borislav Stoyanov, Vladimir Dunchev, Georgi Kotlarski, Maria Ormanova, Stefan Valkov, WELDING OF TITANIUM AND ALUMINUM ALLOYS USING OSCILLATING ELECTRON BEAM AND NIOBIUM FILLER, UNITECH – SELECTED PAPERS - 2024, 331-335

TITLE
THE STRUCTURE PARAMETER EFFECTS ON THE ELECTRONIC AND OPTICAL PROPERTIES OF GAUSSIAN SHAPED DOUBLE QUANTUM WELLS UNDER ELECTRIC FIELD

AUTHOR(S)
Sevket Erol OKAN, Figen Karaca BOZ, Saban AKTAS

ABSTRACT
Infrared detecting Gaussian shaped 𝐴𝐴𝐴𝐴 𝑥𝑥 𝐺𝐺𝐺𝐺1−𝑥𝑥 𝐴𝐴𝐴𝐴/ 𝐺𝐺𝐺𝐺𝐴𝐴𝐴𝐴/ 𝐴𝐴𝐴𝐴𝑥𝑥 𝐺𝐺𝐺𝐺1−𝑥𝑥 𝐴𝐴𝐴𝐴/𝐺𝐺𝐺𝐺𝐴𝐴𝐴𝐴/𝐴𝐴𝐴𝐴 𝑥𝑥 𝐺𝐺𝐺𝐺1−𝑥𝑥 𝐴𝐴𝐴𝐴 double quantum wells have been designed. The energy states and the electronic wave functions have been calculated by the finite difference method within the effective mass approximation. The structure parameter, which design the potential profile of the device, was increased to explore its effect on the first for energy states at different electric field strength. The results showed that increase in the electric field strength shift the peak values of the total absorption coefficients to smaller photon energies, meaning a blue shift.

DOI
www.doi.org/10.70456/ZPGC8721

PAGES
322-326

DOWNLOAD
https://unitechsp.tugab.bg/images/2023/7-FH/s17_p150_v2.pdf

How to cite this article:
Sevket Erol OKAN, Figen Karaca BOZ, Saban AKTAS, THE STRUCTURE PARAMETER EFFECTS ON THE ELECTRONIC AND OPTICAL PROPERTIES OF GAUSSIAN SHAPED DOUBLE QUANTUM WELLS UNDER ELECTRIC FIELD, UNITECH – SELECTED PAPERS - 2024, 322-326