Explanipedia

Development of 3D-Printed Carbon Capture Adsorbents by Zeolites Derived from Coal Fly Ash Open

Silviya Boycheva, Boian Mladenov, Ivan Dimitrov, Margarita Popova · 2025

The present study aims to develop 3D-structured adsorbents for carbon capture with the utilization of coal ash after its conversion into zeolites. For this purpose, printing paste mixtures with a viscosity of 800 Pa·s were developed based …

Opportunities for therapy of musculoskeletal diseases through balneotherapy and SPA tourism. Open

Ivan Dimitrov · 2025

This article aims to review the possibilities and existing recommendations for the application of balneotherapy and SPA therapy in musculoskeletal diseases (MSDs), as well as the possibilities for their integration into the health and tour…

CoCuFe2O4 Ferrites Hosted in Activated Carbon from Used Motor Oils and Ceria-Based Nanocomposites as Catalysts for Hydrogen Production Open

Gloria Issa, Momchil Dimitrov, Ivan Dimitrov, Стефан Маринов, Nikolay Velinov , et al. · 2025

This study focuses on the synthesis of CoCuFe₂O₄ mixed ferrites supported on nanoporous carbon materials. The carbon supports were derived from two mixtures: a mixture of spent motor oil and pine wood chips (designated as AC-A), and mixtur…

3D printed nickel-copper modified CaNaX and NaX zeolites obtained from coal fly ash for sustainable levulinic acid hydrogenation Open

Ivan Dimitrov, Silviya Boycheva, Momtchil Dimitrov, Boian Mladenov, Daniela Kovacheva , et al. · 2025

Design and Implement an Automatic Smart Buoy System for a Bulgarian Safe Beach Areas – Part 2 Open

Ivan Dimitrov, Iliyan Iliev, Daniel Hristov, Dinko Dinkov, Tsetoslav Mavrodiev · 2025

3D Printed Ni–Cu Sodalite Catalysts for Sustainable γ-Valerolactone Production from Levulinic Acid—Effect of the Copper Content and the Method of Preparation Open

Margarita Popova, Boian Mladenov, Ivan Dimitrov, Momtchil Dimitrov, Violeta Mitova , et al. · 2025

Coal fly ash zeolites with Sodalite structure were synthesized by ultrasound-assisted double stage fusion-hydrothermal synthesis. Monometallic Ni and bimetallic Ni–Cu supported catalysts with 5 wt.% Ni and different copper contents of 1.5,…

Design and Implement an Automatic Smart Buoy System for a Bulgarian Safe Beach Areas – Part 1 Open

Ivan Dimitrov, Iliyan Iliev, Daniel Hristov, Dinko Dinkov, Tsetoslav Mavrodiev · 2025

The Formation of γ-Valerolactone from Renewable Levulinic Acid over Ni-Cu Fly Ash Zeolite Catalysts Open

Margarita Popova, Silviya Boycheva, Ivan Dimitrov, Momtchil Dimitrov, Daniela Kovacheva , et al. · 2024

Zeolites with different structures (P1, sodalite, and X) were synthesized from coal fly ash by applying ultrasonically assisted hydrothermal and fusion–hydrothermal synthesis. Bimetallic catalysts, containing 5 wt.% Ni and 2.5 wt.% Cu, sup…

Correction: Popova et al. Ni-Cu and Ni-Co-Modified Fly Ash Zeolite Catalysts for Hydrodeoxygenation of Levulinic Acid to γ-Valerolactone. Molecules 2024, 29, 99 Open

Margarita Popova, Momtchil Dimitrov, Silviya Boycheva, Ivan Dimitrov, Filip Ublekov , et al. · 2024

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2023 Macroprudential Stress Test of the Euro Area Banking System Open

Ivan Dimitrov, Catherine Le Grand, Laurynas Naruševičius, André Nunes, Jure Podlogar , et al. · 2024

Ni-Cu and Ni-Co-Modified Fly Ash Zeolite Catalysts for Hydrodeoxygenation of Levulinic Acid to γ-Valerolactone Open

Margarita Popova, Momtchil Dimitrov, Silviya Boycheva, Ivan Dimitrov, Filip Ublekov , et al. · 2023

Monometallic (Ni, Co, Cu) and bimetallic (Ni-Co, Ni-Cu) 10–20 wt.% metal containing catalysts supported on fly ash zeolite were prepared by post-synthesis impregnation method. The catalysts were characterized by X-ray powder diffraction, N…

Oral traumatic lesions – demographic and clinical characteristics Open

Ivan Dimitrov · 2023

This article describes a survey conducted among 56 patients with oral traumatic lesions (OTL) for the time period between January 2020 and June 2023.The survey includes patients with chronic illnesses who regularly take their medications, …

Ni-Cu and Ni-Co-Modified Fly Ash Zeolite Catalysts for Selective Hydrodeoxygenation of Levulinic Acid to γ-Valerolactone Open

Margarita Popova, Momtchil Dimitrov, Silviya Boycheva, Ivan Dimitrov, Filip Ublekov , et al. · 2023

Monometallic (Ni, Co, Cu) and bimetallic (Ni-Co, Ni-Cu) 10-20 wt. % metal containing catalysts supported on fly ash zeolite were prepared by post-synthesis impregnation method. The catalysts were characterized by X-ray powder diffraction, …

ANALYSIS OF MECHANISM OF EXCITATION OF VIBRATIONS OF WORKING BODIES OF DISKATOR WITH ROTATION AROUND AXIS OF ATTACHMENT Open

Nataliia Ponomarenko, Boris Volik, Ivan Dimitrov, Yevhenii Volynets · 2023

The paper proposes an analytical model of interaction with the ground of a spherical disk mounted on an elastic riser at angles to the direction of movement and vertical. The working hypothesis is that fluctuations in the elastic riser-dis…

Beast: A Model for the Assessment of System-Wide Risks and Macroprudential Policies Open

Katarzyna Budnik, Johannes Größ, Gianluca Vagliano, Ivan Dimitrov, Max Lampe , et al. · 2023

"Family Etiology of Suicidal Properties in Adolescents" Open

Ivan Dimitrov · 2022

Psychology and Psychotherapy: Research Studys Family Etiology of Suicidal Properties in Adolescents Ivan Dimitrov* Department of General, Experimental and Genetic Psychology, Faculty of Philosophy, Sofia University “St. Kliment Ohridski”, …

KINDLR questionnaire for quality of life in children: translation and adaptation in Bulgarian Open

Zhivka Chuperkova, Ivan Dimitrov, Miglena Georgieva · 2022

Health-related quality of life can be assessed using specially developed instruments. One of these questionnaires, specific to pediatric practice, is KINDL R . It is a short, methodologically suitable, psychometrically sound and flexible t…

The Economic Impact of the NPL Coverage Expectations in the Euro Area Open

Katarzyna Budnik, Ivan Dimitrov, Johannes Größ, Matjaž Volk, Max Lampe , et al. · 2022

Prenatal and Early Postnatal Behavioural Programming in Laying Hens, With Possible Implications for the Development of Injurious Pecking Open

E.N. de Haas, Ruth C. Newberry, Joanne Edgar, Anja Brinch Riber, Inma Estévez , et al. · 2021

Injurious pecking (IP) represents a serious concern for the welfare of laying hens ( Gallus gallus domesticus ). The risk of IP among hens with intact beaks in cage-free housing prompts a need for solutions based on an understanding of und…

Ollier disease and neurological complications—a clinical case Open

Stela Atanasova, Sevdzhan Osman, Boyan Balev, Ara Kaprelyan, Ivan Dimitrov · 2021

Ollier disease, also known as enchondromatosis, is a rare skeletal disease with an estimated prevalence of about 1/100,000. It is characterized by the presence of multiple intraosseous, usually benign cartilage tumors, enchondromas, showin…

Policies in support of lending following the coronavirus (COVID-19) pandemic Open

Katarzyna Budnik, Ivan Dimitrov, Johannes Größ, Martina Jančoková, Max Lampe , et al. · 2021

This paper looks at the impact of mitigation policies implemented by supervisory and macroprudential authorities as well as national governments in the euro area during the coronavirus (COVID-19) pandemic to support lending to the real eco…

DISADVATAGES OF RC BUILDING STRUCTURES WITH A SOFT STOREY Open

Ivan Dimitrov, Golubka Nechevska-Cvetanovska · 2021

The buildings with a soft storey represent a great danger for the safety of the tenants in seismically active areas.Because of the improper distribution of stiffness in height of the building, the seismic effect results in a failure in the…

The Growth-at-Risk Perspective on the System-Wide Impact of Basel III Finalisation in the Euro Area Open

Katarzyna Budnik, Ivan Dimitrov, Carla Giglio, Johannes Größ, Max Lampe , et al. · 2021

Macroprudential Stress Test of the Euro Area Banking System Amid the Coronavirus (COVID-19) Pandemic Open

Katarzyna Budnik, Louis Boucherie, Marcin Borsuk, Ivan Dimitrov, Giacomo Giraldo , et al. · 2021

Policies in Support of Lending Following the Coronavirus (COVID-19) Pandemic Open

Katarzyna Budnik, Ivan Dimitrov, Johannes Größ, Martina Jančoková, Max Lampe , et al. · 2021

Miller Fisher syndrome: A case report Open

Stela Atanasova, Ivan Dimitrov, Ara Kaprelyan · 2020

Miller Fisher syndrome is a rare neurological disease that is considered to be a variant of Guillain-Barré syndrome. It is characterized by abnormal muscle coordination (ataxia), paralysis of the eye muscles (ophthalmoplegia), and absence …

A Proposed Role for Pro-Inflammatory Cytokines in Damaging Behavior in Pigs Open

Janicke Nordgreen, S.A. Edwards, Laura Boyle, J. Elizabeth Bolhuis, Christina Veit , et al. · 2020

Sickness can change our mood for the worse, leaving us sad, lethargic, grumpy and less socially inclined. This mood change is part of a set of behavioral symptoms called sickness behavior and has features in common with core symptoms of de…

Banking Euro Area Stress Test Model Open

Katarzyna Budnik, Mirco Balatti, Ivan Dimitrov, Johannes Größ, Michael Kleemann , et al. · 2020

Diagnostic challenges in a patient with cognitive and motor disturbances: is it Huntington's disease? Open

Stela Ganeva Atanasova, Ivan Dimitrov, Sevdzhan Osman, Ara Kaprelyan, Кalina Drenska · 2019

Huntington’s disease (HD) is a fatal genetic disorder that causes the progressive breakdown of nerve cells in the brain. It deteriorates a person’s physical and mental abilities usually during their prime working years and there is no cure…

Review: Early life predisposing factors for biting in pigs Open

Armelle Prunier, Xavier Averós, Ivan Dimitrov, S.A. Edwards, Edna Hillmann , et al. · 2019

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