• 0.13 μm CMOS traveling-wave power amplifier with on- and off-chip gate-line termination 

      Vasjanov, Aleksandr; Barzdėnas, Vaidotas (Electronics, 2020)
      Broadband amplifiers are essential building blocks used in high data rate wireless, radar, and instrumentation systems, as well as in optical communication systems. Only a traveling-wave amplifier (TWA) provides sufficient ...
    • 0.18 μm CMOS power amplifier architecture comparison for a wideband Doherty configuration 

      Vasjanov, Aleksandr; Barzdėnas, Vaidotas (Informacije MIDEM - Journal of Microelectronics, Electronic Components and Materials, 2016)
      This paper presents a comparison between a classical and a self-biased two stage CMOS power amplifier (PA) suitable for a wideband Doherty (DPA) configuration. Both PAs are fully differential and have been implemented in ...
    • 137Cs and 90Sr behavioural regularities in the southeastern part of the Baltic Sea 

      Styro, Dmitrij; Bumelienė, Žana; Lukinskienė, Marija; Morkūnienė, Rasa (Journal of Environmental Radioactivity, 2001)
      Variations in 137Cs concentrations were investigated over the period 1986-1997 in the southeastern part of the Baltic Sea, following the Chernobyl power plant accident. The rate of "self-cleaning" was demontsrated to be ...
    • 137Cs contamination and its vertical distribution in the Curonian Spit soil 

      Morkūnienė, Rasa; Vasiliauskienė, Vaida; Girgždys, Aloyzas; Astrauskienė, Nijolė (Journal of environmental engineering and landscape management, 2005)
      In 2003–2004 soil depthprofile sampling was carried out at Juodkrantė in the Curonian Spit. The activity concentrations of anthropogenic radionuclide 137Cs in soil samples from the terrestrial and coastal environment of ...
    • 137Cs in Lake Tapeliai, Lithuania 

      Moisejenkova, Anastasija; Tarasyuk, Nikolay; Daškevič, Eva; Maceika, Evaldas; Girgždys, Aloyzas (Lithuanian journal of physics, 2012)
      The results of an integrated study of the radiocesium behaviour in Lake Tapeliai by using not only conventional data on radiocesium activity concentrations in lake water and sediments but also a complex data set on seasonal ...
    • 137Cs pernašos sistemoje „Dirvožemis – Grybai – Žmogus“ tyrimas 

      Butkus, Donatas; Dimavičienė, Diana (Journal of environmental engineering and landscape management, 2009)
      Straipsnyje nagrinėjama dirbtinės kilmės radionuklido 137Cs savitasis aktyvumas valgomuosiuose grybuose bei grybavietės dirvožemyje. 137Cs savitasis aktyvumas buvo matuotas pavieniuose dirvožemio sluoksniuose, valgomuosiuose ...
    • 2-DOF small-size piezoelectric locomotion platform with the unlimited motion range 

      Čeponis, Andrius; Mažeika, Dalius; Jūrėnas, Vytautas (Micromachines, 2021)
      This paper presents numerical and experimental investigations of a small size piezoelectric locomotion platform that provides unlimited planar motion. The platform consists of three piezoelectric bimorph plates attached ...
    • 2-Phenyl-1,2,3-benzotriazole Ir(III) complexes with additional donor fragment for single-layer PhOLED devices 

      Tomkutė-Lukšienė, Daiva; Keruckas, Jonas; Malinauskas, Tadas; Simokaitienė, Jūratė; Getautis, Vytautas; Gražulevičius, Juozas Vidas; Volyniuk, Dmytro; Cherpak, V.; Stakhira, P.; Yashchuk, V.; Kosach, V.; Luka, G.; Sidaravičius, Donatas Jonas (Dyes and pigments, 2013)
      Phosphorescent bis-cyclometallated iridium (III) complexes based on 2-phenyl-1,2,3-benzotriazole with additional donoric diphenylamine or carbazole moieties were synthesized, studied and tested as phosphorescent materials ...
    • 2014 m. aktualijos Lietuvos filosofinėje padangėje: du filosofai – du jiems skirti įvertinimai 

      Barevičiūtė, Jovilė; Kačerauskienė, Aldona (Filosofija. Sociologija, 2015)
      Straipsnyje pristatomi du svarbūs Lietuvos kultūrai ir filosofijai įvykiai – dr. Vaclovui Bagdonavičiui Valstybinės Jono Basanavičiaus premijos skyrimas ir dr. Žibartui Juozui Jackūnui Mykolo Romerio universiteto (MRU) ...
    • 25th International Symposium on Automation and Robotics in Construction 

      Zavadskas, Edmundas Kazimieras (Automation in construction: an international research journal, 2010)
    • 2D CFD simulation of dynamic heat transfer in an open-type refrigerated display cabinet 

      Vengalis, Tadas; Mokšin, Vadim (Applied sciences, 2022)
      This study uses a simplified two-dimensional time-dependent computational fluid dynamic (CFD) model to study the influence of wall shelf configuration and outtake honeycomb inclination angle on the performance of the air ...
    • 3-D modeling of nanostructures evolution in lateral etching processes 

      Navickas, Romualdas (Mechanika, 2008)
      We have developed 3-D model of evolution of the nano- and microstructures geometry in lateral etching processes. The modeling results for the different initial geometry structures are presented. The experimental inves-tigations ...
    • 3D cellular spheroids as tools for understanding carboxylated quantum dot behavior in tumors 

      Jarockytė, Greta; Dapkutė, Dominyka; Karabanovas, Vitalijus; Daugmaudis, Justinas Vygintas; Ivanauskas, Feliksas; Rotomskis, Ričardas (Biochimica et biophysica acta : general subjects, 2018)
      Monolayer cell cultures have been considered the most suitable technique for in vivo cellular experiments. However, a lot of cellular functions and responses that are present in natural tissues are lost in two-dimensional ...
    • 3D finite element analysis and experimental investigations of a new type of timber beam-to-beam connection 

      Gečys, Tomas; Daniūnas, Alfonsas; Bader, Thomas K; Wagner, Leopold; Eberhardsteiner, Josef (Engineering structures, 2015)
      The application of modeling approaches for timber has proven suitable for the analysis of such a type of timber beam-to-beam connection and, consequently, might be used for further optimization of this connection.
    • 3D printing technology as a method for discovering new creative opportunities for architecture and design 

      Krūgelis, Linas (Landscape architecture and art, 2018)
      3D printing technology has been in existence for several decades and has long been used exclusively for industrial manufacturing or product prototyping, and today this rapidly progressing technology penetrates more and ...
    • 3DOF ultrasonic motor with two piezoelectric rings 

      Jūrėnas, Vytautas; Kazokaitis, Gražvydas; Mažeika, Dalius (Sensors, 2020)
      A novel design of a multiple degrees of freedom (multi-DOF) piezoelectric ultrasonic motor (USM) is presented in the paper. The main idea of the motor design is to combine the magnetic sphere type rotor and two oppositely ...
    • 4D architektūroje 

      Lupeikis, Kęstutis; Mačiulis, Algimantas (Urbanistika ir architektūra = Town planning and architecture, 2011)
      Pastaruoju metu, šalia kitų reiškinių, šiuolaikinėje architektūroje vis aktyviau reiškiasi ketvirtosios dimensijos vaidmuo. Šį procesą lemia priešprieša pragmatiškam funkcionalizmui, utilitarumui, unifikacijai, formaliam ...
    • 5-DOF cone-shaped piezoelectric positioning robot for optical systems 

      Čeponis, Andrius; Mažeika, Dalius; Vasiljev, Piotr; Bareikis, Regimantas (Sensors and actuators A: Physical, 2023)
      The paper presents a numerical and experimental investigation of a 5-DOF piezoelectric robot that is used for angular and planar positioning of optical devices and systems. The robot has a simple design and consists of an ...
    • 5G standalone and 4G multi-carrier network-in-a-box using a software defined radio framework 

      Kiela, Karolis; Jurgo, Marijan; Mačaitis, Vytautas; Navickas, Romualdas (Sensors: Special issue: Experimentation in 5G and beyond networks: State of the art and the way forward, 2021)
      In this work, an open Radio Access Network (RAN), compatible, scalable and highly flexible Software Defined Radio (SDR)-based Remote Radio Head (RRH) framework is proposed and designed. Such framework can be used to implement ...
    • 70th anniversary of the birth of academician Edmundas Kazimieras Zavadskas 

      Šaparauskas, Jonas; Turskis, Zenonas; Merkuryeva, Galina; Liias, Roode (Technological and economic development of economy, 2014)
      Born in Vilnius on 12 May 1944, the Academician and Professor Edmundas Kazimieras Zavadskas turned 70. He is the founder and the Editor-in-Chief of the Journal “Technological and Economic Development of Economy” (TEDE). ...