• TOPEX/Poseidon was the first space mission that allowed scientists to map ocean topography with sufficient accuracy to study the large-scale current systems of the world's ocean. (wikipedia.org)
  • Currently there are two different satellites calculating the earth ocean topography, Jason-1, and Jason-2. (wikipedia.org)
  • These very accurate observations of variations in sea surface height-also known as ocean topography-provide information about global sea level, the speed and direction of ocean currents, and heat stored in the ocean. (wikipedia.org)
  • Designed to make the first-ever global survey of Earth's surface water, the Surface Water and Ocean Topography, or SWOT, satellite will collect detailed measurements of how water bodies on Earth change over time. (nasa.gov)
  • There is no consensus on which surface topography (ST) parameters may be used to detect scoliosis progression. (iospress.com)
  • Abstract: In micro endmilling, because of small uncut chip thickness comparable to the tool edge radius and low rigidity of tool, the cutting process must frequently transit between rubbing/ploughing and cutting, and it may deteriorate the machining stability, surface finish and tool wear. (scientific.net)
  • Abstract: Five-axis milling is widely used in machining of complex surfaces parts. (scientific.net)
  • This allows the user to analyze both the topological and elemental characteristics of the sample in addition to several other post process analyses such as 3D surface reconstruction, pore size, particle size, and fiber analysis. (micromeritics.com)
  • and those utilising reconstruction of surface shape from scanned light or photographic techniques. (bmj.com)
  • Initial results indicate that, for selected combinations of magnification and sampling reconstruction, XCT surface topography is in agreement with topography obtained by CSI, FV and stylus measurements. (nottingham.ac.uk)
  • The main bottleneck, which limits the ability of the MEMS community to devise an appropriate solution, is their poor understanding of the influence of the factors, especially surface topography, on the tribological behaviour of MEMS surfaces. (auburn.edu)
  • Sullivan P.J. (2001) Surface Topography Filtering. (springer.com)
  • The Ocean Surface Topography Mission (OSTM) on the Jason-2 satellite is an international Earth observation satellite mission that continues the sea surface height measurements begun in 1992 by the joint NASA/CNES TOPEX/Poseidon mission and followed by the NASA/CNES Jason-1 mission launched in 2001. (wikipedia.org)
  • Nanostructured Ormostamp polymer surfaces are fabricated by nano-replication technology using nanoporous templates resulting in 80-nm diameter nanopillars. (epfl.ch)
  • In association with Bruker, Materials Today is delighted to present a range of freely accessible articles on techniques for nano surface analysis. (materialstoday.com)
  • The study demonstrates the strong influence from nano topography of an unpolished DLC coated surface on both coefficient of friction and material transfer. (diva-portal.org)
  • Join Barbara Boyan, Ph.D., one of the most cited researchers in biomaterial science, for an exclusive webinar on the role of surface nanotechnology in promoting bone growth and fusion in interbody fusion device constructs. (beckershospitalreview.com)
  • Surface topography (ST) measurements of scoliotic deformities offer the potential to reduce radiation and to provide a more complete description of the deformity when compared to standard X-rays. (ucalgary.ca)
  • These variations, called ocean surface topography (or sea surface topography ), also dynamic topography , are mapped using direct (usually satellite-based) or indirect measurements of sea surface height relative to Earth's geoid . (wikipedia.org)
  • Earth's geoid is a calculated surface of equal gravitational potential energy and represents the shape the sea surface would be if the ocean were not in motion. (wikipedia.org)
  • Ocean surface topography is also used to understand how the ocean moves heat around the globe, a critical component of Earth's climate , and for monitoring changes in global sea level . (wikipedia.org)
  • This study evaluated how the combined effect of topography and chemistry can reduce cell spreading and proliferation. (environmental-expert.com)
  • The main objective of this study is to present the importance of considering the brake pad surface topography on predicting noise and vibration of braking system through finite element method (FEM). (environmental-expert.com)
  • Results In this work a systematic study of topographical effects on bactericidal activity of nanostructured surfaces is presented. (epfl.ch)
  • The results of this study indicate that the resin-fluoride application and holmium:YAG irradiation effectively produced increased smoothness and increased resistance to destruction of root surfaces in human extracted teeth under these in vitro conditions. (spie.org)
  • This study reports the development of test devices that can be used to study the effect of topography of contacting MEMS surfaces on the stiction and friction experienced by them. (auburn.edu)
  • Further, the study reports a technique that can be used to controllably tailor the surface topography of the test surfaces. (auburn.edu)
  • Finally, the study reports the formulation of two mathematical correlations, which can be used to predict the effect that the surface topography of MEMS surfaces has on the stiction and friction experienced by them. (auburn.edu)
  • A rigorous assessment of the ability of XCT systems to measure surface topography is, however, yet to be performed, and represents a complex challenge that must account for the large number of control variables involved in XCT measurement (e.g. voltage, current, magnification, computational corrections, filtering and surface determination). (nottingham.ac.uk)
  • These variables have been chosen for their influence on the voxel size of the volumetric dataset, which in turn affects the extracted topography, and any subsequent texture assessment. (nottingham.ac.uk)
  • This paper presents cutting forces with various cutting conditions as well as tool wear patterns in five-axis milling super alloy, which is essential to cutting vibration and defelction analysis of thin-walled complex surfaces parts. (scientific.net)
  • The combination with near-field microscopy would then lead to a simultaneous record of both topography and XRF from a sample at µm lateral resolution. (environmental-expert.com)
  • Atomic force microscopy of four different glioma types-human U251 and rat T9 and F98 glioma cells, including freshly isolated human glioblastoma multiforme neurosphere cultures (containing "stem cell-like cells")-revealed a complex surface topography with numerous microvilli and filopodia. (jimmunol.org)
  • Many times there is nanoscale morphology in surface anomalies and a desired interest in their resultant influence. (micromeritics.com)
  • CaP thin films have been produced by Radio-Frequency (RF) magnetron sputter deposition and a sputtered Titanium (Ti) interlayer was used to create substrates with nanoscale surface features. (environmental-expert.com)
  • Here we demonstrate for the first time that wrinkled graphene-based surfaces are suitable as textured cell attachment substrates, and that engineered wrinkling can dramatically alter cell alignment and morphology. (materialstoday.com)
  • Therefore, there is a serious and urgent need to conduct a systematic investigation for understanding the effect that the surface topography of MEMS surfaces has on the stiction and friction experienced by them. (auburn.edu)
  • The satellites then measure the distance between their orbit altitude and the surface of the water. (wikipedia.org)
  • In other words it is impossible to measure a surface without applying a filter to the measurand. (springer.com)
  • Like its two predecessors, OSTM/Jason-2 uses high-precision ocean altimetry to measure the distance between the satellite and the ocean surface to within a few centimeters. (wikipedia.org)
  • The Zygo Portable Profiler by Zygo Corp. in Middlefield/USA and Darmstadt/Germany, is a portable white light interferometer perfectly suit-able to measure the 3D topography of large optical parts with polished or ground surfaces. (lot-qd.nl)
  • On the basis of modelling our results, we then further discuss the possibility to reach 100 nm XRF resolution, combined to surface topography, working in synchrotron environment. (environmental-expert.com)
  • Texture parameters and reconstructed topography profiles obtained as a result of XCT measurements are investigated and compared to measurements by coherence scanning interferometry (CSI) and focus variation (FV). (nottingham.ac.uk)
  • Absolute changes in surface parameters representing either worsening or improvement externally could reflect worsening of the internal deformity. (iospress.com)
  • The effects of Holmium:YAG laser energy with and without a topical fluoride mixture (resin to NaF) was compared with two types of topical fluorides on surface topography and resistance to acid destruction of root surfaces. (spie.org)
  • As cells adhered to the Fn-coated surface, the underlying grating texture has shown to direct the alignment of cell shape, F-actin and focal contacts parallel to the channels. (cambridge.org)
  • Biophysical manipulation of material surface topography to prevent bacterial adhesion is one promising approach. (epfl.ch)
  • Textured surfaces with periodic topographical features and long-range order are highly attractive for directing cell-material interactions. (materialstoday.com)
  • How Does the Material and Surface Topography of an Interbody Fusion Device Affect Bone Growth and Fusion? (beckershospitalreview.com)
  • The system is controlled via the brand-new, easy-to-use measurement software Mx TM , which allows intuitive measurement navigation and precise 3D imaging of the surface topography. (lot-qd.nl)
  • The second group, including Moiré and ISIS topography, contains systems providing greater detail of surface shape that have been used successfully both in the detection of deformity and their subsequent follow up. (bmj.com)
  • Cell alignment was observed to increase with increasing channel depths, reaching the maximum orientation where most cells aligned parallel to channels on 1-μm textured surface. (cambridge.org)
  • Part quality and productivity are extremely affected by cutting force and tool wear, especially thin-walled complex surface, such as turbine blade. (scientific.net)
  • The main purpose of measuring ocean surface topography is to understand the large-scale circulation of the ocean. (wikipedia.org)
  • They mimic physiological environments more accurately than planar surfaces and can fundamentally alter cell alignment, shape, gene expression, as well as multicellular organization into hierarchical tissue architectures. (materialstoday.com)
  • The wrinkled surfaces are fabricated by graphene oxide wet deposition onto pre-stretched elastomers followed by relaxation and mild thermal treatment to stabilize the films in cell culture medium. (materialstoday.com)
  • Toluidine blue dye was used to test the permeability of root surfaces after acid exposures. (spie.org)