Robertas Navakas

2026

• Edgaras Misiulis, Algis Džiugys, Alina Barkauskienė, Aidanas Preikšaitis, Vytenis Ratkūnas, Gediminas Skarbalius, Robertas Navakas, Tomas Iešmantas, Robertas Alzbutas, Saulius Lukoševičius, Mindaugas Šerpytis, Indrė Lapinskienė, Jewel Sengupta, Vytautas Petkus. Towards Patient Anatomy-Based Simulation of Net Cerebrospinal Fluid Flow in the Intracranial Compartment , Applied Sciences — DOI: 10.3390/app16020611

2025

• Richard Acquah, Edgaras Misiulis, Anna Sandak, Gediminas Skarbalius, Robertas Navakas, Algis Džiugys, Jakub Sandak. Integrating LiDAR, Photogrammetry, and Computational Fluid Dynamics for Wind Flow Simulations Around Existing Buildings , Remote Sensing — DOI: 10.3390/rs17030556
• Gediminas Skarbalius, Algis Dziugys, Edgaras Misiulis, Robertas Navakas. A microscopic perspective on liquid–vapor interfaces: Defining transitioning molecules in argon phase equilibrium via molecular dynamics simulations , Physics of Fluids — DOI: 10.1063/5.0251868
• Tomas Iesmantas, Vytautas Petkus, Robertas Alzbutas, Alina Barkauskiene, Vytenis Ratkūnas, Saulius Lukosevicius, Aidanas Preiksaitis, Indre Lapinskiene, Mindaugas Serpytis, Edgaras Misiulis, Gediminas Skarbalius, Robertas Navakas, Algis Džiugys, Jewel Sengupta. Semantic Segmentation and Quantification of Subarachnoid Hemorrhage of Cerebral <scp>CT</scp> Using Deep Convolutional Neural Networks , International Journal of Imaging Systems and Technology — DOI: 10.1002/ima.70104

2024

• Robertas Navakas, Algis Džiugys, Edgaras Misiulis, Gediminas Skarbalius. Construction of velocity similarity graph for velocity field analysis in granular intruder motion , Granular Matter — DOI: 10.1007/s10035-024-01451-1
• Vytenis Ratkunas, Edgaras Misiulis, Indre Lapinskiene, Gediminas Skarbalius, Robertas Navakas, Algis Dziugys, Alina Barkauskiene, Aidanas Preiksaitis, Mindaugas Serpytis, Saulius Rocka, Saulius Lukosevicius, Tomas Iesmantas, Robertas Alzbutas, Jewel Sengupta, Vytautas Petkus. Cerebrospinal fluid volume as an early radiological factor for clinical course prediction after aneurysmal subarachnoid hemorrhage. A pilot study , European Journal of Radiology — DOI: 10.1016/j.ejrad.2024.111483
• Jewel Sengupta, Robertas Alzbutas, Tomas Iešmantas, Vytautas Petkus, Alina Barkauskienė, Vytenis Ratkūnas, Saulius Lukoševičius, Aidanas Preikšaitis, Indre Lapinskienė, Mindaugas Šerpytis, Edgaras Misiulis, Gediminas Skarbalius, Robertas Navakas, Algis Džiugys. Detection of Subarachnoid Hemorrhage Using CNN with Dynamic Factor and Wandering Strategy-Based Feature Selection , Diagnostics — DOI: 10.3390/diagnostics14212417

2022

• Mindaugas Stankūnas, Algis Džiugys, Gediminas Skarbalius, Edgaras Misiulis, Robertas Navakas. Evaluating the potential impact of COVID-19 passports in Lithuania , Journal of Infection — DOI: 10.1016/j.jinf.2022.05.039
• Robertas Navakas, Gediminas Skarbalius, Algis Džiugys, Edgaras Misiulis, Robertas Navakas. A novel method for convective drying rate estimation in a deep fixed porous material bed , Powder Technology — DOI: 10.1016/j.powtec.2022.117499
• Robertas Navakas, Algis Džiugys, Amir Houshang Mahmoudi, Edgaras Misiulis, Robertas Navakas, Gediminas Skarbalius. Fractal dependence of the packed bed porosity on the particles size distribution , Chaos, Solitons & Fractals — DOI: 10.1016/j.chaos.2022.112144
• Robertas Navakas, Algis Džiugys, Edgaras Misiulis, Gediminas Skarbalius. Construction of velocity similarity graph for velocity field analysis in granular intruder motion — DOI: 10.22541/au.167163062.20488914/v1
• Robertas Navakas, Algis Džiugys, Edgaras Misiulis, Gediminas Skarbalius. Identification of collective particle motion in a rotating drum using a graph community detection algorithm , Mathematical Methods in the Applied Sciences — DOI: 10.1002/mma.7983
• Gediminas Skarbalius, Algis Džiugys, Edgaras Misiulis, Robertas Navakas. The Impact of the Temperature Control Strategy in Steady-State Virtual Vacuum Simulation on the Spontaneous Evaporation Rate and Corresponding Evaporation Coefficient , Applied Sciences — DOI: 10.3390/app13010256
• Algis Džiugys, Amir Houshang Mahmoudi, Edgaras Misiulis, Robertas Navakas, Gediminas Skarbalius. Fractal Dependence of the Packed Bed Porosity on the Particles Size Distribution — DOI: 10.2139/ssrn.4001222

2021

• Gediminas Skarbalius, Algis Džiugys, Edgaras Misiulis, Robertas Navakas, Paulius Vilkinis, Justas Šereika, Nerijus Pedišius. Molecular Dynamics Study on Water Flow Behaviour inside Planar Nanochannel Using Different Temperature Control Strategies , Energies — DOI: 10.3390/en14206843
• Robertas Navakas, Gediminas Skarbalius, Algis Džiugys, Edgaras Misiulis, Robertas Navakas. Molecular dynamics study on water evaporation/condensation parameters , Microfluidics and Nanofluidics — DOI: 10.1007/s10404-021-02482-3
• Robertas Navakas, Algis Džiugys, Edgaras Misiulis, Gediminas Skarbalius. Identification of collective particle motion in a rotating drum using a graph community detection algorithm — DOI: 10.22541/au.161031982.24076071/v1

2020

• Robertas Navakas, L. Vorotinskienė, R. Paulauskas, K. Zakarauskas, R. Navakas, R. Skvorčinskienė, N. Striūgas. Parameters influencing wet biofuel drying during combustion in grate furnaces , Fuel — DOI: 10.1016/j.fuel.2020.117013
• Algis Džiugys, Martynas Bieliūnas, Gediminas Skarbalius, Edagaras Misiulis, Robertas Navakas. Simplified model of Covid-19 epidemic prognosis under quarantine and estimation of quarantine effectiveness — DOI: 10.1101/2020.04.28.20083428
• Algis Džiugys, Martynas Bieliūnas, Gediminas Skarbalius, Edgaras Misiulis, Robertas Navakas. Simplified model of Covid-19 epidemic prognosis under quarantine and estimation of quarantine effectiveness , Chaos, Solitons & Fractals — DOI: 10.1016/j.chaos.2020.110162

2019

• Edgaras Misiulis, Algis Džiugys, Robertas Navakas, Vytautas Petkus. A comparative study of methods used to generate the arterial fiber structure in a clinically relevant numerical analysis , International Journal for Numerical Methods in Biomedical Engineering — DOI: 10.1002/cnm.3194

2018

• Sadeckas, M., Striugas, N., Andriunas, P., Navakas, R., Praspaliauskas, M., Rabaçal, M., Costa, M.. Spontaneous Emission Measurements of Selected Alkali Radicals during the Combustion of a Single Biomass Pellet , Energy and Fuels — DOI: 10.1021/acs.energyfuels.8b01002
• Robertas Navakas, Andrius Saliamonas, Nerijus Striūgas, Algis Džiugys, Rolandas Paulauskas, Kęstutis Zakarauskas. Effect of producer gas addition and air excess ratio on natural gas flame luminescence , Fuel — DOI: 10.1016/j.fuel.2017.12.094

2017

• Striūgas, N., Vorotinskienė, L., Paulauskas, R., Navakas, R., Džiugys, A., Narbutas, L.. Estimating the fuel moisture content to control the reciprocating grate furnace firing wet woody biomass , Energy Conversion and Management — DOI: 10.1016/j.enconman.2017.04.014
• Navakas, R., Džiugys, A., Misiulis, E., Striugas, N.. Community structure of force chains in granular hopper discharge , AIP Conference Proceedings — DOI: 10.1063/1.4992368
• Misiulis, E., Džiugys, A., Navakas, R., Striūgas, N.. A fluid-structure interaction model of the internal carotid and ophthalmic arteries for the noninvasive intracranial pressure measurement method , Computers in Biology and Medicine — DOI: 10.1016/j.compbiomed.2017.03.014
• Algis Džiugys, Bernhard Peters, Robertas Navakas, Edgaras Misiulis. Density segregation on a moving grate , Powder Technology — DOI: 10.1016/j.powtec.2016.09.040

2015

• Džiugys, A., Navakas, R., Striugas, N.. A normalized parameter for similarity/dissimilarity characterization of sequences , Informatica (Netherlands) — DOI: 10.15388/Informatica.2015.47

2014

• A community-detection based approach to identification of inhomogeneities in granular matter , Physica A: Statistical Mechanics and its Applications — DOI: 10.1016/j.physa.2014.04.003
• Saliamonas, A., Navakas, R., Striūgas, N., Džiugys, A., Zakarauskas, K.. Effect of producer gas addition on spectral characteristics of the natural gas flame,Generatorinių dujų priemaišų įtaka gamtinių dujų liepsnos spektrinėms charakteristikoms , Energetika — DOI: 10.6001/energetika.v60i4.3017
• Nerijus Striūgas, Kęstutis Zakarauskas, Algis Džiugys, Robertas Navakas, Rolandas Paulauskas. An evaluation of performance of automatically operated multi-fuel downdraft gasifier for energy production , Applied Thermal Engineering — DOI: 10.1016/j.applthermaleng.2014.09.007

2012

• Peters, B., Džiugys, A., Navakas, R.. A shrinking model for combustion/gasification of char based on transport and reaction time scales , Mechanika — DOI: 10.5755/j01.mech.18.2.1564
• Dement'ev, A.S., Murauskas, E., Slavinskis, N., Navakas, R., Stockus, V.. Control of the repetition rate and reduction of the jitter of the pulses of passively Q-switched solid-state miniature lasers using periodic diode-pump modulation , Quantum Electronics — DOI: 10.1070/QE2012v042n05ABEH014827

2011

• Peters, B., Džiugys, A., Navakas, R.. Simulation of thermal conversion of solid fuel by the discrete particle method,Kietojo kuro šiluminiu{ogonek} virsmu{ogonek} modeliavimas naudojant diskreč iu{ogonek}ju{ogonek} daleliu{ogonek} metoda , Lithuanian Journal of Physics — DOI: 10.3952/lithjphys.51204

2010

• Peters, B., Džiugys, A., Navakas, R.. A discrete approach to thermal conversion of solid fuel by the discrete particle method (DPM) , 10th International Conference Modern Building Materials, Structures and Techniques
• Navakas, R., Džiugys, A., Peters, B.. Application of graph community detection algorithms for identification of force clusters in squeezed granular packs , 10th International Conference Modern Building Materials, Structures and Techniques
• Markauskas, D., Kačianauskas, R., Džiugys, A., Navakas, R.. Investigation of adequacy of multi-sphere approximation of elliptical particles for DEM simulations , Granular Matter — DOI: 10.1007/s10035-009-0158-y

2009

• Džiugys, A., Navakas, R.. The role of friction in mixing and segregation of granular material , Granular Matter — DOI: 10.1007/s10035-009-0145-3

2008

• Džiugys, A., Navakas, R.. The role of friction in mixing and segregation of granular material , 12th International Conference on Computer Methods and Advances in Geomechanics 2008

2007

• Džiugys, A., Navakas, R.. The role of friction on size segregation of granular material , Mechanika

2005

• Džiugys, A., Navakas, R., Šlančiauskas, A., Stravinskas, G., Kačianauskas, R.. Numerical simulation of mixing and segregation of granular material , Mechanika

2003

• Dement'ev, A., Jovaiša, A., Navakas, R.. Modified Z-scan method for determination of nonlinear refraction of optical materials through the measurement of power-weighted time-averaged beam propagation factor , Proceedings of SPIE - The International Society for Optical Engineering — DOI: 10.1117/12.472481

2001

• Dement’ev, A., Buzelis, R., Kosenko, E., Murauskas, E., Navakas, R.. Solid-state lasers with-pulse compression by transient stimulated brillouin and raman scattering , Proceedings of SPIE-The International Society for Optical Engineering — DOI: 10.1117/12.425476

2000

• Dement'ev, A., Navakas, R.. Modelling of generation dynamics of actively and passively Q-switched microchip lasers , Conference on Lasers and Electro-Optics Europe - Technical Digest
• Dement'ev, A., Navakas, R., Vaicekauskas, R.. Modeling of generation dynamics of passively and actively q-switched solid-state lasers , Mathematical Modelling and Analysis — DOI: 10.1080/13926292.2000.9637126