Search Results - "Dumbrăvescu, Niculae"

Semiconductor‐to‐Metal‐like Transition Behavior under Temperature Variation for Inkjet Printed PEDOT:PSS Tracks Embedded in Polymer by Moagăr-Poladian, Gabriel, Mitra, Kalyan Yoti, Mitra, Dana, Thalheim, Robert, Zichner, Ralf, Moagăr-Poladian, Victor, Pachiu, Cristina, Dumbrăvescu, Niculae, Vasilache, Dan

“…Herein, it is intended to show the effect of embedding an inkjet printed poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) track in an…”
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Nanocrystalline graphite thin layers for low-strain, high-sensitivity piezoresistive sensing by Simionescu, Octavian-Gabriel, Pachiu, Cristina, Ionescu, Octavian, Dumbrăvescu, Niculae, Buiu, Octavian, Popa, Radu Cristian, Avram, Andrei, Dinescu, Gheorghe

“…Bulk nanocrystalline graphite has been investigated as a possible candidate for piezoresistive sensors. The thin films were grown using capacitively coupled…”
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Electrical Percolation Threshold and Size Effects in Polyvinylpyrrolidone-Oxidized Single-Wall Carbon Nanohorn Nanocomposite: The Impact for Relative Humidity Resistive Sensors Design by Serban, Bogdan-Catalin, Cobianu, Cornel, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Nicolescu, Cristina Mihaela, Cobianu, Cosmin, Brezeanu, Mihai, Pachiu, Cristina, Serbanescu, Matei

“…This paper reports, for the first time, on the electrical percolation threshold in oxidized carbon nanohorns (CNHox)-polyvinylpyrrolidone (PVP) films. We…”
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Functional Enhancement and Characterization of an Electrophysiological Mapping Electrode Probe with Carbonic, Directional Macrocontacts by Popa, Radu C., Serban, Cosmin-Andrei, Barborica, Andrei, Zagrean, Ana-Maria, Buiu, Octavian, Dumbravescu, Niculae, Paslaru, Alexandru-Catalin, Obreja, Cosmin, Pachiu, Cristina, Stoian, Marius, Marculescu, Catalin, Radoi, Antonio, Vulpe, Silviu, Ion, Marian

“…Electrophysiological mapping (EM) using acute electrode probes is a common procedure performed during functional neurosurgery. Due to their constructive…”
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Cycling testing methodology for PEDOT: PSS RH sensors, using different binders by Dumbravescu, Niculae, Buiu, Octavian, Serban, Bogdan-Catalin, Marinescu, Roxana, Pachiu, Cristina

“…This paper presents a simple testing methodology for chemosensitive RH sensors, which was applied to study the response of a conductive polymer…”
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Ternary Nanocomposites Based on Oxidized Carbon Nanohorns as Sensing Layers for Room Temperature Resistive Humidity Sensing by Serban, Bogdan-Catalin, Cobianu, Cornel, Buiu, Octavian, Bumbac, Marius, Dumbravescu, Niculae, Avramescu, Viorel, Nicolescu, Cristina Mihaela, Brezeanu, Mihai, Pachiu, Cristina, Craciun, Gabriel, Radulescu, Cristiana

“…This paper presents the relative humidity (RH) sensing response of a resistive sensor employing sensing layers based on a ternary nanocomposite comprising…”
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Quaternary Oxidized Carbon Nanohorns -Based Nanohybrid as Sensing Layer for Room Temperature Resistive Ethanol Sensing by Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Brezeanu, Mihai, Cobianu, Cornel, Marinescu, Roxana, Pachiu, Cristina, Avramescu, Viorel, Nicolescu, Cristina-Mihaela, Comanescu, Florin

“…We report the ethanol sensing response of a resistive sensor employing a sensing layer based on a quaternary nanohybrid comprising oxidized carbon nanohorns,…”
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Oxidized Carbon Nanohorns/KCl/ PVP Nanohybrid as Sensing Layer for Chemiresistive Humidity Sensor by Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Brezeanu, Mihai, Cobianu, Cornel, Marinescu, Roxana, Pachiu, Cristina, Avramescu, Viorel, Nicolescu, Cristina-Mihaela

“…This paper reports on the relative humidity (RH) sensing response of a resistive sensor employing sensing layers based on a ternary nanohybrid comprising…”
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Ternary Holey Carbon-Based Nanohybrid for Resistive Relative Humidity Sensor by Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Brezeanu, Mihai, Cobianu, Cornel, Marinescu, Roxana, Pachiu, Cristina, Avramescu, Viorel, Nicolescu, Cristina-Mihaela

“…This paper reports on the relative humidity (RH) sensing response of a resistive sensor employing a ternary nanohybrid sensing layer comprising holey carbon…”
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Sonochemically synthetized ZnO-Graphene nanohybrids and its characterization by Cobianu, Cornel, Dumbravescu, Niculae, Serban, Bogdan-Catalin, Buiu, Octavian, Romanitan, Cosmin, Comanescu, Florin, Danila, Mihai, Marinescu, Roxana, Avramescu, Viorel, Ionescu, Octavian

“…The paper presents the morphological, structural and compositional properties of the sonochemically prepared ZnO-1.4wt% Graphene (Z-G) nanocomposites as a…”
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Organic-Inorganic Ternary Nanohybrids of Single-Walled Carbon Nanohorns for Room Temperature Chemiresistive Ethanol Detection by Cobianu, Cornel, Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Avramescu, Viorel, Pachiu, Cristina, Bita, Bogdan, Bumbac, Marius, Nicolescu, Cristina-Mihaela, Cobianu, Cosmin

“…Organic-inorganic ternary nanohybrids consisting of oxidized-single walled carbon nanohorns-SnO -polyvinylpyrrolidone (ox-SWCNH/SnO /PVP) with stoichiometry…”
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Zero Hysteresis, High Sensitivity and Fast Response of Two RH Sensors based on CNO: Polymer Nanocomposites by Dumbravescu, Niculae, Dumbravescu, Carmen, Serban, Bogdan, Buiu, Octavian

“…This paper presents fabrication and characterization of two types of Relative Humidity (RH) sensors. Sensing materials, containing Carbon Nano Onion CNO (as…”
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Wheatstone Quarter-Bridge Based Resistive Smart Sensors for IoT Applications by Serbanescu, Matei, Dumbravescu, Niculae, Pristavu, Gheorghe, Avramescu, Viorel, Serban, Bogdan, Draghici, Florin, Buiu, Octavian, Brezeanu, Gheorghe

“…The paper presents a smart sensor architecture, based on resistive sensing elements in a Wheatstone quarter-bridge configuration. The energy and cost efficient…”
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Resistive Humidity Sensor Based on Onion-Like Carbon-PVA Composite Sensing Film by Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Brezeanu, Mihai, Pachiu, Cristina, Nicolescu, Cristina-Mihaela, Diaconescu, Vlad

“…Experimental behavior of a resistive relative humidity (RH) sensor including a Si substrate, a SiO2 layer, interdigitated transducer (IDT) electrodes, and, as…”
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Carbon Nanohorns - PVP Nanocomposite As Sensing Layer For Resistive Humidity Monitoring: Preliminary Results by Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Bumbac, Marius, Pachiu, Cristina, Brezeanu, Mihai, Craciun, Gabriel, Nicolescu, Cristina- Mihaela, Marinescu, Roxana, Cobianu, Cornel

“…A novel nanocomposite layer comprising pristine carbon nanohorns (CNHs) and polyvinylpirrolidone (PVP) at 9/1 w/w ratio is reported as a relative humidity (RH)…”
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Electrical Percolation Threshold In Oxidized Single Wall Carbon Nanohorn-Polyvinylpyrrolidone Nanocomposite: A Possible Application For High Sensitivity Resistive Humidity Sensor by Serban, Bogdan-Catalin, Cobianu, Cornel, Dumbravescu, Niculae, Buiu, Octavian, Avramescu, Viorel, Bumbac, Marius, Nicolescu, Cristina-Mihaela, Cobianu, Cosmin, Brezeanu, Mihai

“…The objective of this study is to design and synthetize an oxidized single wall carbon nanohorns (SWCNHs) - polyvinylpyrrolidone (PVP) composite film as…”
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MOSFET conductance modelling including distortion analysis aspects by Profirescu, O., Babarada, F., Profirescu, M.D., Ravariu, C., Manea, E., Dumbravescu, N., Dunare, C., Dumitru, U.

“…The nanotechnology trend needs more precisely models for active devices. From this point of view the design of linear analog circuits lacks models for…”
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Room Temperature Chemiresistive Ethanol Detection by Ternary Nanocomposites of Oxidized Single Wall Carbon Nanohorn (ox-SWCNH) by Cobianu, Cornel, Serban, Bogdan-Catalin, Dumbravescu, Niculae, Buiu, Octavian, Avramescu, Viorel, Bumbac, Marius, Nicolescu, Cristina-Mihaela, Cobianu, Cosmin

“…This paper presents the fabrication and functional characterization of a novel chemiresistive sensor for room temperature ethanol vapors detection by means of…”
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Significant enhancement of electrical behavior of SAW devices on langasite and quartz substrates obtained by improvements in design and technology by Dumbravescu, Niculae, Ionescu, Octavian, Cernica, Ileana, Buiculescu, Valentin, Pistritu, Florian, Mitrea, Cristina

“…This paper presents some improvements applied in design and fabrications of SAW devices manufactured on langasite and quartz substrates. For a best design we…”
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Facile 3D nanostructured ZnO-graphene hybrids for gas sensing applications by Cobianu, Cornel, Dumbravescu, Niculae, Serban, Bogdan, Buiu, Octavian, Comanescu, Florin, Romanitan, Cosmin, Danila, Mihai, Avramescu, Viorel, Ionescu, Octavian

“…In this paper, ZnO-1.4 wt% Graphene (ZnO-G) hybrids were synthesized by sonochemistry of high acoustic power density. XRD, SEM and RAMAN spectroscopy have…”
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