Results 91 to 100 of about 2,045,190 (230)

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

, 2012
In laser　cutting　of　thick　steel　sheets,　quality　difference　is　observed　between　cut　surfaces　obtained　with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro, Koji Hirano, FABBRO, Rémy, HIRANO, Koji   +3 more
core   +1 more source

A Survey of Methods for Constructing 3D Urban Models From Point Clouds

Computer Graphics Forum, EarlyView.
The survey outlines a general process for constructing 3D models from point clouds and categorizes the methods based on their use of templates, basic surface primitives, hybrid approaches, or linear primitives. Additionally, the survey reviews the datasets and benchmarks that are essential for testing and training the developed methods.
Chiara Romanengo, Silvia Biasotti, Bianca Falcidieno, Daniela Cabiddu, Elia Moscoso Thompson, Michela Spagnuolo   +5 more
wiley   +1 more source

Planning for Scanning Using Building Information Models:A Novel Approach with Occlusion Handling [PDF]

, 2015
Terrestrial laser scanning is finding an increasing range of applications in the Architectural Engineering Construction and Facilities Management (AEC/FM) industry.
Biswas, Humayun Kabir, Bosché, Frédéric, Sun, Ming, Frédéric Bosché, Ming Sun, Humayun Biswas   +5 more
core   +1 more source

TreeON: Reconstructing 3D Tree Point Clouds from Orthophotos and Heightmaps

Computer Graphics Forum, EarlyView.
Abstract We present TreeON, a novel neural‐based framework for reconstructing detailed 3D tree point clouds from sparse top‐down geodata, using only a single orthophoto and its corresponding Digital Surface Model (DSM). Our method introduces a new training supervision strategy that combines both geometric supervision and a differentiable shadow and ...
Angeliki Grammatikaki, Johannes Eschner, Pedro Hermosilla, Oscar Argudo, Manuela Waldner   +4 more
wiley   +1 more source

Olfactory Tuft Cells Are Critical to Basal Inflammation, Innate Immune Response to Viral Infection, and Modulation of Quiescent Stem Cell Activation, Proliferation and Differentiation

Cell Proliferation, EarlyView.
Olfactory tuft cells communicate with other mucosal cells in maintaining olfactory epithelial immunity and sensory function. Disruption of tuft cell signalling pathways causes a skewed immune response, leading to heightened inflammation and increased activation of the quiescent stem cells, which are further exacerbated by viral infection.
Sai‐Sai Zhang, Haiyan Wang, Yi‐Sen Yang, Yi‐Hong Li, Defu Yu, Yushi Yao, Ruhong Zhou, Liquan Huang   +7 more
wiley   +1 more source

Dental resin composites generate microparticles and impact on gingival keratinocytes—In vitro study

European Journal of Oral Sciences, EarlyView.
Abstract Along with our increased understanding of the spread of microplastic pollution, the awareness of microparticle release from medical and dental materials has increased. Still, their effects on human health are largely unknown. As the use of resin composite materials in dentistry continues to increase, it is essential to understand the formation
Ella Pullinen, Saara V. Sirkiä, Johan Nyman, Pekka K. Vallittu, Vuokko Loimaranta   +4 more
wiley   +1 more source

How the Build Angle Affects the Marginal and Internal Fit of 3D Printed Definitive FPDs: An in Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Statement of Problem Printing parameters may influence the fit of additively manufactured dental restorations. However, the effect of small incremental build angles on the marginal and internal fit of stereolithography (SLA)‐printed definitive 3‐unit fixed partial dentures (FPDs) has not been sufficiently investigated.
Bora Akat, Bahar Kavafoğlu Yilmaz, Fehmi Gönüldaş, Mert Ocak, Stephen F. Rosenstiel, Evşen Tamam   +5 more
wiley   +1 more source

Avaliação dos dados laser scanner para determinar modelos de terreno em áreas cobertas por floresta ombrófila densa alterada na Amazônia [PDF]

, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Em florestas, informações tridimensionais de terreno têm sido obtidas por sensores como os de radar, os fotogramétricos ou por ...
Vargas, Rosane Maciel de Araújo
core  

Effects of Surface Abrasion With Airborne‐Particles and Surface Etching With Hydrofluoric Acid on Color Difference and Translucency of Nano‐Hybrid Ceramic

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effects of alumina airborne‐particle abrasion, glass‐bead airborne‐particle abrasion, and hydrofluoric acid etching of intaglio surfaces on the color difference and translucency of a nano‐hybrid ceramic after cementation to resin abutment specimens, and to analyze the relationships between surface roughness and these
Hyuk‐Joon Lee, Jin‐Won Jang, Zee‐Hoon Park, Ji‐Hwan Kim   +3 more
wiley   +1 more source

Estimativa da altura da vegetação utilizando dados Airborne Laser Scanner [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Esta pesquisa foi conduzida buscando estimar a vegetação uma altura, ou mais especificamente do estrato arbóreo, que contém
Alixandrini Junior, Mauro José
core