Ir al contenido

Buscador de Tesis y publicaciones académicas

Consulta más de 250 millones de tesis, artículos científicos, ponencias y datasets de repositorios abiertos de todo el mundo. Encuentra antecedentes para tu investigación y descarga los que son de acceso libre.

148.404.069 resultados

Se pueden recorrer los primeros 10.000. Afina la búsqueda con los filtros para llegar a lo que buscas.

Conjunto de datos 2028 Acceso abierto

Operando studies of NiGa@GaOx catalysts for propane dehydrogenation

Yiyi XU · Andrew Michael BEALE · Anastasia MOLOKOVA · Zhaohong YING

Operando XANES/EXAFS and XRD measurements on supported NiGa@GaOx catalysts are proposed to confirm the presence of metastable gallium hydrides (observed when feeding H2) as novel active centres during the propane dehydrogenation to propene reaction and which are suspected to significantly enhance the catalytic performa...

PaN Chemistry BM23 x-ray probe
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2020258659
Leer el documento
Conjunto de datos 2028 Acceso abierto

In-situ graphene formation in a sandwich of nanoporous synthetic clay mineral

Jon Otto FOSSUM · Vadim DIADKIN · Barbara PACAKOVA · Bruno TELLI CECCATO · y 1 más

In this experiment, we aim to study formation of sandwich of heteroatom doped graphene inside the confined space of layered silicate. In our previous experiments, we grew heterostructure of alternating layers of graphene and clay, now we aim to optimize preparation of sandwich structure of graphene and clay. We use syn...

PaN A01-2-1360 BM01 Particles, Nuclei and Fields
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2097008474
Leer el documento
Conjunto de datos 2028 Acceso abierto

Protein dynamics of resurrected ancestral enzymes studied by crystallography

Sandrine COQUILLE · Julien MARTEL · Sylvain ENGILBERGE

Adaptation of organisms to environmental niches is a hallmark of evolution. One prevalent example is that of thermal adaptation, where in two descendants evolve at different temperature extremes. How dynamical changes due to adaptive mutations are allosterically propagated to the active site, to modulate activity, in d...

basic medicine PaN medical and health sciences x-ray probe
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2015682396
Leer el documento
Conjunto de datos 2028 Acceso abierto

Operando study on Cu-Ni bimetallic catalysts for the production of propanediols from glycerol using in-situ generated hydrogen via aqueous p

Dragos Constantin STOIAN · SEBASTIANO CAMPISI · Martina FRACCHIA (ORCID: 0000-0001-5366-153X) · Filippo BOSSOLA · y 2 más

The combination in one catalytic system of the aqueous phase reforming (APR) reaction of small alcohols to generate in-situ the H2 necessary to the hydrogenolysis (APH) of glycerol is a promising process to produce 1,2- and 1,3-propanediols, which are fundamental for the sustainable manufacture of plastics, drugs, etc....

PaN Chemistry BM31 CH-7208
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2008419682
Leer el documento
Conjunto de datos 2028 Acceso abierto

3D characterization of deformation mechanisms of the Achilles tendon enthesis using Texture tomography and phase contrast µCT

Tilman GRUNEWALD · Moritz STAMMER · Stefano CHECCHIA · Moritz Paul Karl FREWEIN · y 2 más

The enthesis is an insertion site of tendon into bone with a highly complex organization. Gradients in collagen and mineral content, organization and structure across the enthesis at multiple hierarchical levels provide it with exceptional mechanical properties. However, the local deformation mechanisms, especially at...

PaN x-ray probe Particles, Nuclei and Fields Life Sciences
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2008150097
Leer el documento
Artículo 2028 Acceso abierto Revisado por pares 1 cita

Variable Selection and Minimax Prediction in High-dimensional Functional Linear Models

Guo, Xingche · Li, Yehua · Hsing, Tailen

High-dimensional functional data have become increasingly prevalent in modern applications such as high-frequency financial data and neuroimaging data analysis. We investigate a class of high-dimensional linear regression models, where each predictor is a random element in an infinite-dimensional function space, and th...

Methodology (stat.ME) FOS: Computer and information sciences Methodology Statistics Theory
  • Statistica Sinica (Institute of Statistical S...
  • DOI: 10.5705/ss.202025.0151
Leer el documento
Conjunto de datos 2028 Acceso abierto

HERCULES practicals day 2 - Forbidden reflections in a Germanium single crystal

LINRUEI LEE · Florian KÜBELBÄCK · Guillaume BEUTIER · Benedetta VITALE · y 11 más

We will measure forbidden reflections of single crystal of pure Germanium at the Ge K edge (11.1 keV) at room temperature. Energy and azimuthal scans at fixed HKL will be performed. We will study the resonant reflections and the multiple-diffraction (Renninger) reflections.

PaN IH-HC-4133 physical sciences BM02
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2100649996
Leer el documento
Artículo 2028 Acceso abierto Revisado por pares

Grade of Membership Analysis for Multi-Layer Ordinal Categorical Data

Qing, Huan

Consider a group of individuals (subjects) participating in the same psychological tests with numerous questions (items) at different times, where the choices of each item have an implicit ordering. The observed responses can be recorded in multiple response matrices over time, named multi-layer ordinal categorical dat...

Methodology (stat.ME) FOS: Computer and information sciences Methodology mathematics
  • Statistica Sinica (Institute of Statistical S...
  • DOI: 10.5705/ss.202024.0276
Leer el documento
Conjunto de datos 2028 Acceso abierto

IBS BAG

Pauline MACHEBOEUF · Christine GABORIAUD · Matthew BOWLER · Yordan HAYAT · y 2 más

The IBS BAG includes in this proposal IBS teams and external groups from CEA-Cadarache (St Paul lez Durance) and IRBA (Brétigny-sur-Orge). We study structure-function relationships of proteins emphasizing in human health, biotechnology and methodology. Most of the projects are a continuation of the MX-2498 proposal and...

basic medicine PaN medical and health sciences MX-2586
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-1996607302
Leer el documento
Conjunto de datos 2028 Acceso abierto

Exploring strain engineering of epitaxial oxide membranes to enhance oxygen evolution electrocatalysis

Peter KUS · Jakub DRNEC · Martí RAMIS GARCÍA · Pol SALLÉS PERRAMON (ORCID: 0000-0003-1426-611X) · y 2 más

Complex oxides are increasingly recognized as promising alternatives to precious metals in the field of electrocatalysis due to their high catalytic activity and tailorable properties. The correlation between the structure of these oxides and their catalytic activity suggests that strain engineering could be an effecti...

PaN ID31 x-ray probe Particles, Nuclei and Fields
  • ESRF (European Synchrotron Radiation Facility...
  • English
  • DOI: 10.15151/esrf-es-2045346549
Leer el documento

Resultados provistos por OpenAIRE, la infraestructura europea de ciencia abierta. Tesis y Másters Colombia no aloja ni distribuye estos documentos: cada enlace lleva al repositorio de origen.

Cómo usar el buscador en tu investigación

1

Encuentra antecedentes

Busca por tema y filtra por tesis doctorales o de maestría para ver cómo abordaron tu problema otros investigadores, y detectar el vacío que va a justificar tu trabajo.

2

Construye tu marco teórico

Ordena por número de citas para identificar los trabajos de referencia de tu área, y quédate con los de acceso abierto para poder leerlos completos hoy mismo.

3

Cita con fuentes verificables

Cada resultado trae autoría, año, editorial y DOI: los datos que necesitas para armar la referencia en APA, y el enlace al repositorio original para verificarla.

Encontraste los antecedentes. ¿Y ahora?

Nuestro equipo de más de 1000 especialistas te acompaña a convertir esa revisión de literatura en un proyecto sólido: delimitación del tema, metodología, redacción y revisión antiplagio con informe de Turnitin.

WhatsApp