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Journal articles on the topic 'Contact profilometry'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Nikanorov, Nikolai Y., and Elizabeth G. Bobyleva. "CONTROL METHODS OF OPTICAL DETAILS WITH FREE-FORM SURFACES AND KINOFORM ELEMENTS." Interexpo GEO-Siberia 8, no. 1 (2020): 118–26. http://dx.doi.org/10.33764/2618-981x-2020-8-1-118-126.

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Methods of control of optical parts with free-form surfaces and kinoform elements under production conditions are considered. Two of the considered methods - interferometric (using holographic compensators) and profilometric (using contact profilometers) - are widely known and used in industrial practice. The method of non-contact profilometry, based on chromatic confocal sensors to control the surface shape of optical parts in industrial conditions, was not previously applied.

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2

A.A., Dedkova, Kireev V. Yu., and Makhiboroda M.A. "Possibilities and limitations of the contact profilometry method for determining the height difference for monitoring topological elements and layer thickness." Nanostructures. Mathematical Physics and Modelling 20, no. 2 (2020): 23–40. http://dx.doi.org/10.31145/2224-8412-2020-20--2-23-40.

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The work shows specific examples of the possibilities and limitations of the contact profilometry method for measuring the relief of micro and nanostructures formed on substrates during the production of microelectronic devices. The requirements to the relief parameters of microelectronic structures are formulated, which make it possible to use contact profilometers for their measurement and control. Methods of forming steps for measuring the thickness of films by contact profilometry are described, and their advantages and disadvantages are analyzed. The method of contact profilometry with op

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3

Moon, Byoung Geun, Na Young Park, Young Chan Ko, and Hyoung Jin Kim. "Characterization of paper surfaces by friction profilometry." BioResources 17, no. 4 (2022): 6067–78. http://dx.doi.org/10.15376/biores.17.4.6067-6078.

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Friction profilometry is a powerful technique that is suitable for the surface characterization of paper products. In this technique, a stylus-type contact method that resembles papermaking processes is used for evaluating the quality attributes of products. The surface characterization requires both surface roughness and friction measurements. At present, however, few reports have been available regarding characterization of the friction by the surface profilometric method. The objective of this study was to provide guiding principles of a stylus-type contact surface profilometry for determin

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4

Soto-Negro, Roberto. "Anterior Eye Profilometry-guided Scleral Contact Lens Fitting in Keratoconus." International Journal of Keratoconus and Ectatic Corneal Diseases 6, no. 2 (2017): 97–100. http://dx.doi.org/10.5005/jp-journals-10025-1150.

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ABSTRACT We report the case of a 35-year-old woman diagnosed with keratoconus since she was 18 years old and wearer of corneal rigid contact lenses (CLs). We refitted the case with the fully scleral CL ICD16.5 (Paragon Vision Sciences) for obtaining not only a successful visual restoration, but also a comfortable wear. We initiated the fitting with the spherical model of the CL, but it failed due to instability of the lens. We confirmed the presence of a clear asymmetry in the anterior scleral geometry in both eyes by using the profilometer eye surface profiler (ESP, Eaglet Eye), with a differ

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5

Ružbarský, Juraj. "The Influence of the Wavelength of Laser Light on the Non-Contact Measurement of the Roughness of Shiny Cut Surfaces on Stainless Steel A304 Material." Applied Sciences 14, no. 6 (2024): 2420. http://dx.doi.org/10.3390/app14062420.

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The article is focused on the study of the effect of laser light with three wavelengths used in a laser profilometer for the measurement of selected roughness parameters of the shiny surface of stainless steel A304 material. The measured results were compared with the results we achieved with the reference contact roughness meter (SJ-400). The findings presented are relevant to the parameters of the experiment outlined within the article. In general, the obtained results make it possible to state that when measuring the roughness of shiny cut surfaces using non-contact laser profilometry, refl

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6

Ślusarski, Łukasz. "Measurement accuracy analysis for microgeometry nanostandards with microinterferometer and stylus profilometer." Bulletin of the Military University of Technology 67, no. 4 (2018): 139–48. http://dx.doi.org/10.5604/01.3001.0012.8503.

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The goal of the work, described in this paper, was to examine and analyse measurement capabilities of GUM Length and Angle Department in measurements of step height/depth standards with the values below 1 μm (nanostandards), with 2D, and 3D surface characteristics. Measurements were performed with microinterforometer and stylus profilometer. Keywords: nanometrology, depth/height standards, microinterferometry, contact profilometry.

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Schlueter, Nadine, Katja Jung, and Carolina Ganss. "Profilometric Quantification of Erosive Tissue Loss in Dentine: A Systematic Evaluation of the Method." Caries Research 50, no. 5 (2016): 443–54. http://dx.doi.org/10.1159/000448147.

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Profilometry is established in erosion research. However, in the case of dentine, factors such as the demineralised organic matrix, desiccation effects, or type of measuring device may have an impact on the measurement results, which were investigated in the present study. Dentine specimens were eroded with citric acid (1%, pH 2.6) for 5, 10, 15, 20, 30, 60, 90, and 120 min (n = 15 each). For each specimen, tissue loss was determined under various conditions - before/after enzymatic matrix removal, under standardised wet and desiccated (2/10 min) conditions - with non-contact and contact profi

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8

MITAL, GERHARD, EMIL SPISAK, PETER MULIDRAN, LUBOS KASCAK, and TOMAS JEZNY. "3D EVALUATION OF THE TOPOGRAPHY OF THE SURFACE BY ABRASIVE WATER JET MACHINING TECHNOLOGY." MM Science Journal 2021, no. 4 (2021): 4847–52. http://dx.doi.org/10.17973/mmsj.2021_10_2021097.

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The article deals with contact and non-contact evaluation of surface roughness created by water jet cutting technology (AWJ). Non-contact surface measurement was performed using an LPM laser profilometer. The values measured by the laser profilometry method were compared with the values measured by the contact method, the Mitutoyo SJ 400 roughness meter. Six samples were produced. Three in stainless steel and three in structural steel. In order to achieve a different surface topography, different feed rates of the cutting head were used on the samples, which was reflected in the quality of the

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9

MITAL, GERHARD, EMIL SPISAK, PETER MULIDRAN, LUBOS KASCAK, and TOMAS JEZNY. "3D EVALUATION OF THE TOPOGRAPHY OF THE SURFACE BY ABRASIVE WATER JET MACHINING TECHNOLOGY." MM Science Journal 2021, no. 4 (2021): 4847–52. http://dx.doi.org/10.17973/mmsj.2021_10_2021097.

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The article deals with contact and non-contact evaluation of surface roughness created by water jet cutting technology (AWJ). Non-contact surface measurement was performed using an LPM laser profilometer. The values measured by the laser profilometry method were compared with the values measured by the contact method, the Mitutoyo SJ 400 roughness meter. Six samples were produced. Three in stainless steel and three in structural steel. In order to achieve a different surface topography, different feed rates of the cutting head were used on the samples, which was reflected in the quality of the

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10

Forgács, Imre, and Ákos Antal. "Comparison of Structured Light Projection-based Surface Reconstruction Methods." Periodica Polytechnica Mechanical Engineering 69, no. 2 (2025): 151–63. https://doi.org/10.3311/ppme.40358.

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In recent decades, technological advancements and digitalization have led to the emergence of numerous new instruments and measurement techniques in optics. Contactless measurement methods have gained increasing significance, especially since the COVID-19 pandemic. Profilometry, as an optical measurement technique, enables precise and non-destructive surface analysis. Compared to traditional contact-based methods, it offers numerous advantages, making it particularly useful in various fields, especially in medicine. These techniques allow for detailed examination of biological surfaces and tis

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Paepegaey, Aude-Marine, Matthew L. Barker, David W. Bartlett, et al. "Measuring enamel erosion: A comparative study of contact profilometry, non-contact profilometry and confocal laser scanning microscopy." Dental Materials 29, no. 12 (2013): 1265–72. http://dx.doi.org/10.1016/j.dental.2013.09.015.

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12

Lee, Yong Ju, Young Chan Ko, Byoung Geun Moon, and Hyoung Jin Kim. "Surface characterization of paper products by profilometry with a fractal dimension analysis." BioResources 18, no. 2 (2023): 3978–94. http://dx.doi.org/10.15376/biores.18.2.3978-3994.

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A surface profilometry technique was used to characterize the surfaces of paper products. A stylus-contact type profilometer capable of simultaneously generating both surface roughness- and friction-profiles was used. As a stylus for the profilometer, a conical shape whose tip was rounded to have a 0.5 mm curvature radius was designed and successfully employed in both printing & writing (P&W) papers and hygiene papers such as bathroom tissues and kitchen towel. From the profiles, the mean absolute deviation (MAD) from the averages, i.e., R-MAD from the roughness average and F-MAD from

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13

Martín-Béjar, Sergio, Juan Miguel Cañero-Nieto, José Francisco Solano Martos, and Lorenzo Sevilla Hurtado. "Laser Profilometry Application in Welding Geometrical Characterization." Key Engineering Materials 960 (October 10, 2023): 65–72. http://dx.doi.org/10.4028/p-2ehbly.

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Welding processes are commonly used in the industry for the manufacture of large parts or due to their complex geometry that does not allow the part to be manufactured as a whole. Nevertheless, the union can show worst mechanical properties than the rest of the piece, affecting negatively its service behavior, so it is necessary evaluate weald seam to ensure the correct process application. Electrical welding operations are commonly used due to the reduced equipment size or their possibilities application in numerous metallic materials. Notwithstanding, different variables have to be taken int

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14

Ružbarský, Juraj. "The Difficulty of Measuring the Roughness of Glossy Surfaces Using the Triangulation Principle." Applied Sciences 13, no. 8 (2023): 5155. http://dx.doi.org/10.3390/app13085155.

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In the experiment, the roughness was measured on a machined surface with high gloss, which was also the main requirement for the test samples. For this reason, the samples made of stainless steel A304 and aluminum alloy AW 2017 were created by a progressive laser using material-cutting technology. This article explains a contact-free measurement method that uses the triangulation principle, which constitutes the basis on which the device used in the experiment, i.e., the laser profilometry, works. The surface roughness of the cut surfaces was examined on the manufactured samples through the se

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15

Li, Yufeng, and F. E. Talke. "Limitations and Corrections of Optical Profilometry in Surface Characterization of Carbon Coated Magnetic Recording Disks." Journal of Tribology 112, no. 4 (1990): 670–77. http://dx.doi.org/10.1115/1.2920314.

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The thickness of a thin absorbing carbon step on a strongly absorbing magnetic layer is measured using contact stylus and noncontact optical profilometer instrumentation, The dependence of optical profilometer measurements on carbon film thickness and optical properties of both the magnetic layer and the carbon film is investigated, and the error in the optical measurement is evaluated as a function of the phase shift of the light reflected from the sample surface. A marked improvement in the accuracy of the step height measurement is obtained if account is taken of the phase shift of the ligh

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16

Malcomb, Joseph R. "Laser Profilometry For Non-Contact Automated Countersink Diameter Measurement." SAE International Journal of Aerospace 7, no. 2 (2014): 263–68. http://dx.doi.org/10.4271/2014-01-2255.

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17

O’Donnell, K. A. "Effects of finite stylus width in surface contact profilometry." Applied Optics 32, no. 25 (1993): 4922. http://dx.doi.org/10.1364/ao.32.004922.

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18

Wang, Xuehua, and Kenneth J. Cheng. "Effect of Glow-Discharge Plasma Treatment on Contact Angle and Micromorphology of Bamboo Green Surface." Forests 11, no. 12 (2020): 1293. http://dx.doi.org/10.3390/f11121293.

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The inner and outer surfaces of bamboo stems are usually removed prior to the manufacture of bamboo panels because the surfaces are hydrophobic and difficult to bond with glue. Hence, the recovery and utilization ratio of bamboo during processing is low. This study focused on using glow-discharge plasma to treat green bamboo surfaces to make them less hydrophobic. The effects of plasma treatment on green bamboo stems were examined using contact goniometry (wettability), non-contact confocal profilometry and scanning electron microscopy (SEM). Confocal profilometry and SEM revealed that the mor

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19

Rzepka, Magdalena, Czesław Łukianowicz, Wojciech Zawadka, Krzysztof Rokosz, and Krzysztof Nadolny. "Suitability Study of Optical Coordinate Measuring Machine for Quality Assessment and Wear Phenomena Identification of Blade Edge and Surface of Planer Technical Knives." Materials 17, no. 16 (2024): 4018. http://dx.doi.org/10.3390/ma17164018.

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This article discusses a comparative analysis of the wear and quality of planer knife blades used in wood planers. The novelty in this work is the use of a simple coordinate measuring machine with a vision system to assess the wear of the cutting edges of planer knives. The primary objective of the research described in this paper was to verify whether the wear of the cutting edge of planer knives can be measured quickly and accurately using an optical coordinate measuring machine with a vision system. To date, contact profilometry methods have been used for this purpose, which require a speci

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20

Čairović, Đorđe, Martin Zlámal, Petr Štěpánek, Tomáš Trčka, Pavel Škarvada, and Robert Macků. "Determination of Surface Roughness Parameters by Optical Profilometry and Sand Patch Test." Solid State Phenomena 259 (May 2017): 15–20. http://dx.doi.org/10.4028/www.scientific.net/ssp.259.15.

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In cases when two concrete parts are cast against in different times are not connected by dowels, main contributors to the resistance are cohesion and friction. Shear resistance of the interface is highly dependent on surface treatment and its roughness. In this paper, besides the review of available methods of surface roughness determination, the optical profilometry will be introduced and described. Optical profilometry represents non-contact and non-destructive method for characterizing surface topography. Furthermore, results obtained by abovementioned method will be compared with Sand Pat

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21

Miller, T., S. Adamczak, J. Świderski, M. Wieczorowski, A. Łętocha, and B. Gapiński. "Influence of temperature gradient on surface texture measurements with the use of profilometry." Bulletin of the Polish Academy of Sciences Technical Sciences 65, no. 1 (2017): 53–62. http://dx.doi.org/10.1515/bpasts-2017-0007.

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Abstract The paper presents an analysis of influence of ambient temperature changes on the values of parameters in topography measurements with the use of different profilometry techniques. In order to check this, a series of measurements was performed. Two multiprofilometry instruments were used - a contact profilometer, further equipped with an interferometric transducer, and an optical one with a confocal probe. Measurements were performed on first-class flat interferometric glass and on an A-type roughness standard - under different conditions, with simultaneous registration of differences

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22

Brown, C. A., and G. Savary. "Describing ground surface texture using contact profilometry and fractal analysis." Wear 141, no. 2 (1991): 211–26. http://dx.doi.org/10.1016/0043-1648(91)90269-z.

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23

Lee, Yong Ju, Jae Hyeop Kim, Ji Eun Cha, Na Young Kang, and Hyoung Jin Kim. "Analysis of Surface Characteristics of Printing Paper Using Contact Profilometry." Journal of Korea Technical Association of The Pulp and Paper Industry 55, no. 2 (2023): 48–58. http://dx.doi.org/10.7584/jktappi.2023.4.55.2.48.

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24

Antonini, Leonardo Marasca, Rafael Gomes Mielczarski, Caroline Pigatto, Iduvirges Lourdes Müller, and Célia de Fraga Malfatti. "The Influence of the Operating Parameters of Titanium Electropolishing to Obtain Nanostructured Titanium Surfaces." Materials Science Forum 727-728 (August 2012): 1638–42. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.1638.

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Titanium and Ti alloys have been widely used as biomaterial due to their mechanical properties and high in vitro and in vivo cytocompatibility. Studies have showed that the acceleration of the osseointegration process is associated to the modification of the surface morphology. The aim of this work is to study the influence of the operating parameters of titanium electropolishing to obtain nanostructured titanium surfaces. The titanium electropolishing was carried out with different temperatures (7°C, 18°C and 25°C), current density of 0.19 A/cm2 and electropolishing time of 8 minutes. After t

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Shaughnessy, Kenneth D., Emma G. Langford, Chester Szwejkowski, Patrick Hopkins, and Costel Constantin. "Goniometry Versus Profilometry Studies of Contact Angle for PEDOT:PSS Deposited Onto Silicon and Fused Silica Substrates." MRS Advances 1, no. 7 (2015): 471–75. http://dx.doi.org/10.1557/adv.2015.29.

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ABSTRACTThis paper presents a comparative study on the effects of plasma type and duration on the contact angle of silicon (Si) and fused silica (FS) for the deposition of Poly (3,4 ethyldioxythiophene) Polystyrene Sulfonate (PEDOT:PSS) via drop casting. The two methods used to measure contact angles were goniometry and profilometry. Both methods agreed that the lowest contact angles were given by: 1) 30 seconds in nitrogen/oxygen mix for Si substrates, and 2) 10 minutes in pure oxygen plasma for FS substrates.

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26

Daugbjerg, Thomas Schrøder, Loïc Crouzier, Alexandra Delvallée, et al. "Measurement of wettability and surface roughness for metrology and quality control in microfluidics." International Journal of Metrology and Quality Engineering 16 (2025): 2. https://doi.org/10.1051/ijmqe/2024021.

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Microfluidics is a rapidly growing technology with applications in biochemistry and life sciences. To support the ongoing growth there is a need for common metrology, quality control, and standardisation. Here measurements of wettability and surface roughness can contribute, and these quantities affect flow characteristics of devices, bonding processes in manufacturing, and special microfluidic mechanisms such as droplet formation and spreading of fluids on surfaces. To quantify wettability, an optical laboratory setup was used to measure liquid drop contact angles of three liquids on a microf

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27

Steiner, Max Gabriel, Anderson Diogo Spacek, João Mota Neto, et al. "“In Situ” Evaluation of Mechanical Wear of Mobile Contacts of Electricity Voltage Regulator." Energies 13, no. 19 (2020): 5015. http://dx.doi.org/10.3390/en13195015.

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This in situ study presents an analysis of the wear of mobile contacts of switching in an automatic line voltage regulator, regarding the surface wear of the contacts. It is interesting to analyze the contacts of this equipment due to the friction and wear generated during the contact change, in order to predict and contain mechanical operation failures. The contacts were evaluated for mass loss, profilometry, and analysis in a scanning electron microscope, after remaining in operation in the regulator for about one year and switching the contacts almost 2500 times. This study aims to evaluate

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28

Sau, Susmita, Sajjan Kumar, Sankar Narayan Patra, and Subhas Chandra Panja. "Signaling Relay Contact Failure Analysis with 3D Profilometry, SEM and EDS." International Journal of Mechanical Engineering 11, no. 1 (2024): 28–38. http://dx.doi.org/10.14445/23488360/ijme-v11i1p103.

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29

Chen, Xiao Nong, and Robert Pelton. "Pre-Adsorption of Amphiphilic Polymers on Synthetic Surfaces for Biofouling Retardation." Advanced Materials Research 11-12 (February 2006): 363–66. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.363.

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Polystyrene (PS), polyethylene (PE), polypropylene (PP), glass and stainless steel were exposed to aqueous solutions of a series amphiphilic polymers at room temperature, including N-isopropylacrylamide (NIPAM)-based polymers, polyvinylpyrrolidone (PVP), polypropylene oxide (PPO)-polyethylene oxide (PEO) block copolymers and PEO. Dynamic contact angle measurements of the material surfaces before and after the treatment indicate that only NIPAM-based polymers can adsorb on both hydrophobic and hydrophilic surfaces. The surface morphologies of the materials before and after polymer adsorption we

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30

Grochalski, Karol, Dominika Podbereska, Michał Wieczorowski, Rafał Talar, and Wiesław Graboń. "Selected Errors in Spatial Measurements of Surface Asperities." Materials 17, no. 12 (2024): 2918. http://dx.doi.org/10.3390/ma17122918.

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This work presents issues related to selected errors accompanying spatial measurements of surface roughness using contact profilometry. The influence of internal heat sources, such as engines or control electronics, on the thermal expansion of the drive responsible for the measurement probe’s movement in the X-axis direction was investigated. In terms of starting measurements on a thermally unstable device, the synchronization error of individual profile paths was 16.1 µm. Based on thermographic studies, the time required for full thermal stabilization of this drive was determined to be 6–12 h

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31

Sibileva, Svetlana Vladimirovna, Andrey Leonidovich Botanogov, Nikolay Vadimovich Trofimov, and Ludmila Viktorovna Zaharova. "Surface Treatments of Titanium Alloy for Preparing Laminated Composite Material." Advanced Materials Research 1101 (April 2015): 229–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1101.229.

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In this investigation surface treatment of titanium alloy VT20 is carried out by phosphating and anodization in order to increase the adhesive bond strength. The surfaces were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), profilometry, contact angle measurements. The joined titanium specimens were shear tested before and after exposure to high humidity to a period of three months.

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Fahrbach, Michael, Linus Krieg, Tobias Voss, Maik Bertke, Jiushuai Xu, and Erwin Peiner. "Optimizing a Cantilever Measurement System towards High Speed, Nonreactive Contact-Resonance-Profilometry." Proceedings 2, no. 13 (2018): 889. http://dx.doi.org/10.3390/proceedings2130889.

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An existing phase-locked-loop (PLL) based contact-resonance measurement system is studied and optimized. Improvements to the electronics’ circuit to reduce both nonlinear behavior and noise are realized and experimentally tested. The improvements enable to analyze signals even at highly damped vibrations of the cantilever.

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Li, Zhi, Uwe Brand, and Thomas Ahbe. "Step height measurement of microscale thermoplastic polymer specimens using contact stylus profilometry." Precision Engineering 45 (July 2016): 110–17. http://dx.doi.org/10.1016/j.precisioneng.2016.02.001.

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Fakes, D., JM Newton, and TR Thomas. "The physical characterization of contact lens surfaces by means of surface profilometry." Clinical Materials 1, no. 2 (1986): 109–15. http://dx.doi.org/10.1016/s0267-6605(86)80043-9.

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DeNaeyer, Gregory. "Profilometry. Using Corneo-scleral topography for scleral lens fitting." Eye 21, no. 128 (2019): 19–22. http://dx.doi.org/10.33791/2222-4408-2019-4-19-22.

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The world-wide use of scleral contact lenses has dramatically increased over the past 10 year and has changed the way that we manage patients with corneal irregularity. Successfully fitting them can be challenging especially for eyes that have significant asymmetries of the cornea or sclera. The future of scleral lens fitting is utilizing corneo-scleral topography to accurately measure the anterior ocular surface and then using software to design lenses that identically match the scleral surface and evenly vault the cornea. This process allows the practitioner to efficiently fit a customized s

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Valentina Lungu, Magdalena. "Tungsten-Copper Composites for Arcing Contact Applications." Material Science Research India 17, no. 3 (2020): 214–29. http://dx.doi.org/10.13005/msri/170304.

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The study presents the research findings on electrical contact materials based on tungsten-copper (W-Cu) composites containing 72 ± 3 wt.% W, rest Cu, and up to 1.5 wt.% Ni. Cylindrical sintered parts with 57 ± 0.5 mm in diameter and 12 ± 0.5 mm in height were manufactured by pressing, sintering, and liquid infiltration route, then were mechanically polished and processed as complex shape protection rings used as arcing contacts in high voltage circuit breakers (HVCBs). The surface elemental composition of the sintered parts was determined by wavelength dispersive X-ray fluorescence spectromet

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Kingsbury, E., S. V. Pepper, and B. Ebihara. "Lubrication of Slow Rolling Contacts—The NASA Ball on Plate Tribometer." Journal of Tribology 119, no. 3 (1997): 525–30. http://dx.doi.org/10.1115/1.2833532.

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The NASA Ball on Plate Tribometer was built for the investigation of boundary lubricated rolling. Its contact conditions are easily calculated, and can be adjusted to match a range of real hearing applications for stress, surface velocity, pivot, and contact severity. The rig operates under high vacuum at room temperature. Lubricant charge and specimen preparation are well-controlled and well-characterized. Mass spectroscopy instrumentation allows an indication of lubricant degradation during rolling. Other tribological quantities immediately available are contact resistance, friction coeffici

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Bohinc, Klemen, Petra Lasić, Nives Matijaković Mlinarić, et al. "The Biophysical Properties of the Fruit Cuticles of Six Pear Cultivars during Postharvest Ripening." Agronomy 14, no. 3 (2024): 496. http://dx.doi.org/10.3390/agronomy14030496.

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Pears are abundant in bioactive compounds, which exert favorable effects on human health. The biophysical attributes of fruit cuticles are pivotal in determining fruit quality, storability, and susceptibility to mold growth. This study aimed to elucidate the biophysical properties of six pear cultivars, ‘Conference’, ‘Celina’, ‘Abate Fetel’, ‘Packham’s Triumph’, ‘Sweet Sensation’, and ‘Williams’. Two maturity stages, unripe and fully ripened, were investigated. Furthermore, the efficacy of trimethyl-chitosan-coated pear surfaces in preventing Penicillium expansum (P. expansum) growth was asses

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Tetiana, Kyrychok, Klymenko Tetiana, Talimonova Nadiia, and Svezhentsova Katerina. "DETERMINING SPECIAL FEATURES IN THE TOPOGRAPHY OF PAPER WITH WATER MARKS AT THE MICRO AND NANOLEVELS." Eastern-European Journal of Enterprise Technologies 2, no. 12 (98) (2019): 28–35. https://doi.org/10.15587/1729-4061.2019.164071.

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We have studied the surface structure of tamper-proof paper with positive and negative watermarks at different scales ‒ from a micrometer to a nanometer level, by using the methods of contact profilometry and atomic force microscopy. Experimental research has confirmed that the structural parameters of the tamper-proof paper's surface differ at regions with and without watermarks. The results of measurements by a contact profilometer have made it possible to trace a correlation between values of the profile's mean arithmetic deviation and the presence of watermarks. It was determined t

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40

Bandlitz, Stefan. "Current status of the topography of the sclera: a literature review." Optometry & Contact Lenses 2, no. 3 (2022): 81–90. http://dx.doi.org/10.54352/dozv.qaox4941.

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Purpose. Although a major part of the anterior surface of the eyeball is formed by the sclera, there is little confirmed data on topography of the sclera compared to the cornea. The goal of this paper was to provide an update of relevant literature published on anatomy and topography of the anterior sclera. Methods. A systematic literature search was conducted in PubMed using the key words “scleral” and “topography.” 66 of the 310 papers dealt with the topic and were used for this present review. In addition, 5 articles from the Germanlanguage non-peer-reviewed literature were included. Result

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Adamczak, Stanisław, Jacek Świderski, and Tomasz Dobrowolski. "The assessment of the surface texture of friction node components after tribological tests." Mechanik 90, no. 12 (2017): 1144–47. http://dx.doi.org/10.17814/mechanik.2017.12.193.

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At present, a number of methods can be applied to measure the surface structure of elements. In this paper, following methods were selected to measure the surface texture of friction node components (a ball-disc couple) after tribological tests: contact profilometry, coherence correlation interferometry and atomic force microscopy. The specimens under investigation were: a disc coated by DLC (diamond-like carbon) layer and a ball made of bearing steel.

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Paaren, Kyle M., Nancy Lybeck, Kun Mo, Pavel Medvedev, and Douglas Porter. "Cladding Profilometry Analysis of Experimental Breeder Reactor-II Metallic Fuel Pins with HT9, D9, and SS316 Cladding." Energies 14, no. 2 (2021): 515. http://dx.doi.org/10.3390/en14020515.

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BISON finite element method fuel performance simulations were conducted using an existing automated process that couples the Fuels Irradiation & Physics Database (FIPD) and the Integral Fast Reactor Materials Information System database by writing input files and comparing the BISON output to post-irradiation fuel pin profilometry measurements contained within the databases. The importance of this work is to demonstrate the ability to benchmark fuel performance metallic fuel models within BISON using Experimental Breeder Reactor-II fuel pin data for a number of similar pins, while building

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Maršálek, Ondřej, Jan Vopařil, Peter Raffai, and Pavel Novotný. "Selection Of Analytical Computational Model Of Contact Pressure." Journal of Middle European Construction and Design of Cars 13, no. 2 (2015): 10–15. http://dx.doi.org/10.1515/mecdc-2015-0006.

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Abstract This paper presents a comparison of two contact pressure calculation methods between two real rough surfaces: a calculation based on FEM (Finite Element Method) using commercial software tool ANSYS and a calculation based on FDM (Finite Difference Method) using analytical functions implemented in programing tool MATLAB. This comparison, lately, leads to the selection of the most appropriate analytical contact model useful for time-effective and precise contact pressure determination. Surface data for numerical simulations are obtained by optical profilometry. For the case of the model

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Isgró, G., O. Addison, and G. J. P. Fleming. "Deformation of a Dental Ceramic following Adhesive Cementation." Journal of Dental Research 89, no. 1 (2009): 87–90. http://dx.doi.org/10.1177/0022034509354049.

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Stress-induced changes imparted in a ‘dentin-bonded-crown’ material during sintering, annealing, pre-cementation surface modification, and resin coating have been visualized by profilometry. The hypothesis tested was that operative techniques modify the stressing pattern throughout the material thickness. We polished the upper surfaces of 10 ceramic discs to remove surface imperfections before using a contact profilometer (40-nm resolution) to measure the ‘flatness’. Discs were re-profiled after annealing and after alumina particle air-abrasion and resin-coating of the ‘fit’ surface. Polished

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Popov, Roman Andreevich, Igor Lvovich Abramov, and Sergey Andreevich Tretyakov. "Influence of the cutting blade shape on the technical hemp stalks slicing quality." Agrarian Scientific Journal, no. 4 (April 24, 2023): 137–41. http://dx.doi.org/10.28983/asj.y2023i4pp137-141.

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The article presents the results of in-depth scientific research, including cutting of technical hemp stems with a blade of various shapes and interference of the cut surface by non-contact optical profilometry. Three-dimensional images and characteristic profilograms of the cut surfaces of stems depending on the shape of the cutting edge are obtained. The parameters of the microgeometry of the cut surface and the optimal profile of the cutting edge are determined.

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Nurdin, Nurarina Ahmad, D. A. Harun, Abdul Latif Mohd Tobi, and R. Md Nasir. "Effect of Pin Size on Reciprocating Sliding Wear Test of Ti-6Al-4V." Applied Mechanics and Materials 773-774 (July 2015): 237–41. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.237.

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Ti-6Al-4V is material that has the special characterisation and widely used in tribology studies. In this study reciprocating sliding test between Ti-6Al-4V pin on Ti-6Al-4V flat surface was conclude and focussed on the different contact area of pin size. The testing is run using tribometer pin-on-flat machine where the parameter set on the computer. The sample profilometry than analysed using 3D optical microscope (OM) and value of hardness get from Vickers hardness (HV) test. Due to the experiment, the contact pressure for 6.5 mm is higher than the 12 mm pin size, that brings the higher dept

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Satya Vithin, Allaparthi Venkata, Issac Show, Sreeprasad Ajithaprasad, and Rajshekhar Gannavarpu. "Demodulating interferograms with non-uniform amplitude variations for precision non-contact optical profilometry." Optics and Lasers in Engineering 134 (November 2020): 106292. http://dx.doi.org/10.1016/j.optlaseng.2020.106292.

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Elton, N. J., L. F. Gate, and J. J. Hooper. "Texture and orientation of kaolin in coatings." Clay Minerals 34, no. 1 (1999): 89–98. http://dx.doi.org/10.1180/000985599546109.

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AbstractX-ray diffraction (XRD), infra red (IR) spectroscopy, gloss goniophotometry and stylus profilometry were used to investigate the alignment of kaolinite applied as a thin coating on a polyester film substrate. The principles and applicability of the analytical methods are reviewed and discussed in the context of a kaolinite coating. X-ray diffraction and transmission IR were used to measure kaolinite misalignment and orientation distribution in the coating. Transmission IR measures the coating bulk; XRD data are surface biased, but contain contributions from the bulk. Attenuated total r

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Zhai, Chong Pu, Yi Xiang Gan, and Dorian Hanaor. "Numerical Analysis of Normal Contact Stiffness of Rough Surfaces." Applied Mechanics and Materials 846 (July 2016): 300–305. http://dx.doi.org/10.4028/www.scientific.net/amm.846.300.

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A numerical model was proposed to investigate the contact behaviour of a solid with a rough surface squeezed against a rigid flat plane. We considered simulated hierarchical surface structures as well as scanned surface data obtained by the profilometry of isotropically roughened specimens. The simulated and treated surfaces were characterised using statistical and fractal parameters. The evolution of contact stiffness under increasing normal compression was analysed through the total truncated area at varying heights, in order to relate contact mechanics to different surface parameters employ

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Wang, Fu-Xing, P. Lacey, R. S. Gates, and S. M. Hsu. "A Study of the Relative Surface Conformity Between Two Surfaces in Sliding Contact." Journal of Tribology 113, no. 4 (1991): 755–61. http://dx.doi.org/10.1115/1.2920689.

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The surface roughnesses of two surfaces in a wear contact can change throughout the course of the wear process. This may or may not change the lubrication mechanism of the system depending on the real area of contact as influenced by the changes in the surface roughness. The present work examines the changes in surface roughness within the contact area, as well as the relative mating of the two surfaces. To quantify the similarity between the two wear surfaces, a new concept, the relative surface conformity, has been defined and developed. To effectively measure this parameter, a computer prog

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