Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 41 for “"GNR"”.
-
Modelo de design de MOOC adaptado às necessidades da formação a distância na estrutura da GNR
… da formação a distância na estrutura da GNR”, pretendeu diagnosticar o estado atual da Educação a Distância (EaD) na Guarda Nacional Republicana e propor um modelo de MOOC, adaptado às exigências da instituição, inserida num contexto de transformação digital. O trabalho inicia-se com uma …
-
Incidence rate of fluoroquinolone resistant gram-negative rod bacteremia among allogeneic hematopoietic cell transplant patients during an era of levofloxacin prophylaxis
… to increasing rates of gram-negative rod (GNR) bacteremia in hematopoietic cell transplant (HCT) recipients. We set out to describe time trends in the incidence rates (IR) of GNR bacteremia and FQ-resistant GNR bacteremia in HCT recipients during an era of levofloxacin prophylaxis. …
-
Electronic characterization of solution-synthesized graphene nanoribbons using scanning tunneling microscopy
… atomically precise graphene nanoribbons (GNRs). Previous works of on-surface heterojunction GNRs and the dry contact transfer method for solution-synthesized GNRs are presented to show the current status of GNR fabrication. The electronic characterizations of the chevron GNR and new …
-
Guarantees of Non-Repetition and the Right to Health: Review of the Law and Evolving Practice of Judicial and Semi-Judicial Bodies at Global and Regional Levels
… the concept of guarantees of non-repetition (GNR) in international law and to consider how to apply GNR in violations of the right to health. GNR are, together with compensation, restitution and satisfaction, forms of reparation. Although international tribunals and UN bodies have increasingly …
-
INVESTIGATION OF ELECTRIC AND THERMOELECTRIC PROPERTIES OF GRAPHENE NANORIBBON
… we developed a method to fabricate ultra-narrow GNRs which is called helium ion Lithography (HIL) using helium ion microscope (HIM). Suspended GNRs with widths down to 5nm and supported GNRs with widths down to 20nm are patterned by directly modifying graphene strips through surface sputtering by …
-
Properties of graphene nanoribbons obtained by chemical vapor deposition
… we pattern the film into graphene nanoribbons (GNRs) of width < ~50 nm and length < ~ 700 nm with Ti/Au contacts. We perform low-bias, high-bias, and temperature-dependent electrical measurements. CVD-grown GNRs have mobility values from 100 to 500 cm2V-1s-1 and current densities up to ~3 mA/μm, …
-
One- and Two-Dimensional sp2-Carbon Nanomaterials: Synthesis, Properties, and Applications
… made from a composite of graphene nanoribbon (GNR) stacks and iron oxide nanoparticles; (4) to prepare an oxygen reduction reaction catalyst made from a composite of GNR stacks and silver nanoparticles; (5) to fabricate a conductive composite of GNR stacks and epoxy and employ it for Joule …
-
Scanning tunneling microscopy and spectroscopy of wet chemically synthesized porous graphene nanoribbons on hydrogen passivated silicon (100)
… atomically precise porous graphene nanoribbons (GNRs) exfoliated onto hydrogen passivated silicon H:Si(100) substrates using a dry contact transfer (DCT) method under ultrahigh-vacuum (UHV) conditions. The porous GNRs are characterized in UHV using scanning tunneling microscopy (STM) and scanning …
-
Scanning tunneling microscopy investigation of atomically precise graphene nanoribbons
… STM and STS studies of two additional GNR geometries, the extended chevron GNR (eGNR) and the hybrid GNR (hGNR) elucidate how structural modification alters the bandgaps of GNRs. The increased lateral extension of the eGNR was found to result in a bandgap of 2.66 eV. The hGNR bandgap …
-
Untersuchung zur Sepsis mit multiresistenten gram-negativen Stäbchen (SMGNS)
… infection (BSI) due to gram-negative rods (GNR) is one of the most serious infections in the hospital setting and antibiotic resistance among gram-negative rods has become an increasing medical problem. The first objective of this case-control-study was to evaluate the influence of BSI due …
-
Physical Modeling of Graphene Nanoribbon Field Effect Transistor Using Non-Equilibrium Green Function Approach for Integrated Circuit Design
… graphene-based devices and circuits. The GNR FET has been simulated by solving a numerical quantum transport model based on self-consistent solution of the 3D Poisson equation and 1D Schrödinger equations within the non-equilibrium Green’s function (NEGF) formalism. The quantum transport …
-
Toward spatial control of gold nanorod surface functionalization
Gold nanorods (GNRs) show much promise for applications in biological, optoelectronic and energy applications. The resonant generation of a localized surface plasmon resonance (LSPR) at the GNR surface results in interesting optical properties and unique interactions with molecules. Combined with …
-
Circuit level delay and power analysis of graphene nano-ribbon field-effect transistors using monte carlo simulations and standard cell library characterization
Graphene nano-ribbon (GNR) transistors have emerged as a promising candidate to replace traditional silicon transistors in future scaled technologies. Since these devices are very small, the impact of process variation on the circuit’s performance is very large. In this work, we study the impact of …
-
Physical and chemical manipulation of carbon nanotubes and graphene for nanoelectronics
… focuses on graphene and graphene nanoribbons (GNR). In this work first detailed structure-reactivity relationships for electron-transfer chemistries of graphene and GNR are developed. For GNR, these relationships demonstrate the dependence of the ribbon reactivity on width and orientation of …
-
Creation of novel gold-nanorod-based localized surface plasmon resonance biosensors
… development of a novel sensitive gold nanorod (GNR) based label-free LSPR optical fibre biosensor, and the development of a novel robust method for effectively modifying the surface of cetyl-trimethyl ammonium bromide (CTAB) capped GNRs and their LSPR biosensing applications. A novel GNR-based …
-
Toward high-performance, low-power, carbon-based interconnects and transistors
… at nanoscale dimensions, graphene nanoribbons (GNRs) may serve as an effective solution. In this thesis, a comprehensive study of sub-50 nm width copper (Cu), aluminum (Al), and GNR interconnects is presented. Existing models are refined to qualitatively understand the size effect, and various …
-
Probing the upper limits of current flow in one-dimensional carbon conductors
… nanotube (CNT) devices and graphene nanoribbons (GNRs) on SiO2 substrates. Experiments and modeling find the CNT-substrate thermal coupling scales proportionally to CNT diameter. Diffuse mismatch modeling (DMM) reveals the upper limit of thermal coupling ~0.7 WK 1m 1 for the largest diameter (3-4 …
-
In-situ TEM study of carbon nanomaterials and thermoelectric nanomaterials
Graphene nanoribbons (GNRs) are quasi one dimensional structures which have unique transport properties, and have a potential to open a bandgap at small ribbon widths. They have been extensively studied in recent years due to their high potential for future electronic and spintronic device …
-
Routing algorithms for electronic design automation
… feature sizes scale down. Graphene nanoribbon (GNR) based devices are shown to be a promising replacement of traditional CMOS at future technology nodes. However, all previous works on GNRs focus at the device level. In order to integrate these devices into electronic systems, routing becomes a …
-
As práticas educativas abertas na promoção de uma cultura organizacional aprendente : o caso de estratégia de e-learning na Guarda Nacional Republicana
… funcional, grande parte da formação interna na GNR é hoje realizada em regime presencial, mas fortemente complementada pela formação a distância. Neste contexto, procura-se no presente estudo refletir sobre a existência de uma cultura organizacional, facilitadora da utilização de práticas …
Page 1 of 3