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128 Results Found

  • Article
  • Open Access
985 Views
27 Pages

31 March 2025

The semi-automated extraction of flat surface landforms was carried out, merging a GIS tools application and a geomorphic analysis. The study focuses on seven areas in southern Italy, characterized by different physical landscapes, using a 5 m resolu...

  • Article
  • Open Access
5 Citations
4,422 Views
30 Pages

27 June 2021

This paper presents an approach of depth image segmentation based on the Evolving Principal Component Clustering (EPCC) method, which exploits data locality in an ordered data stream. The parameters of linear prototypes, which are used to describe di...

  • Feature Paper
  • Article
  • Open Access
473 Views
10 Pages

Fabrication of Nanostructures on Surface of Micro-Lens Arrays Using Reactive Ion Etching

  • Tae Jeong Hwang,
  • Eun Jeong Bae,
  • Geun-Su Choi and
  • Young Wook Park

21 November 2025

In this study, we fabricated a nanostructure on the surface of the micro-lens array (MLA), which is one of the light extraction technologies of organic light-emitting diodes (OLEDs), by performing the Reactive Ion -Etching (RIE) process. The MLA cons...

  • Article
  • Open Access
7 Citations
3,058 Views
16 Pages

30 October 2020

Riverbed micro-topographical features, such as crest and trough, flat bed, and scour pit, indicate the evolution of fluvial geomorphology, and have an influence on the stability of underwater structures and overall scour pits. Previous studies on bed...

  • Article
  • Open Access
2 Citations
1,563 Views
10 Pages

20 November 2024

We explored the use of biomimetic structures, including those that mimic leaf structures, to enhance the angular color uniformity of flat phosphor-converted light-emitting diodes (pcLEDs). The distinct microstructures found on natural leaf surfaces,...

  • Article
  • Open Access
8 Citations
9,209 Views
42 Pages

26 August 2020

Flat surfaces captured by 3D point clouds are often used for localization, mapping, and modeling. Dense point cloud processing has high computation and memory costs making low-dimensional representations of flat surfaces such as polygons desirable. W...

  • Article
  • Open Access
5 Citations
4,145 Views
21 Pages

Depth Data Denoising in Optical Laser Based Sensors for Metal Sheet Flatness Measurement: A Deep Learning Approach

  • Marcos Alonso,
  • Daniel Maestro,
  • Alberto Izaguirre,
  • Imanol Andonegui and
  • Manuel Graña

23 October 2021

Surface flatness assessment is necessary for quality control of metal sheets manufactured from steel coils by roll leveling and cutting. Mechanical-contact-based flatness sensors are being replaced by modern laser-based optical sensors that deliver a...

  • Article
  • Open Access
107 Citations
8,109 Views
10 Pages

A Smart Washer for Bolt Looseness Monitoring Based on Piezoelectric Active Sensing Method

  • Heyue Yin,
  • Tao Wang,
  • Dan Yang,
  • Shaopeng Liu,
  • Junhua Shao and
  • Yourong Li

26 October 2016

Piezoceramic based active sensing methods have been researched to monitor preload on bolt connections. However, there is a saturation problem involved with this type of method. The transmitted energy is sometimes saturated before the maximum preload...

  • Article
  • Open Access
3 Citations
1,352 Views
15 Pages

21 March 2024

In this study, a numerical and experimental analysis of a solar collector with roughness elements in the form of stainless-steel scourers on the absorber surface is presented. According to the location type and number of the stainless steel scourers,...

  • Article
  • Open Access
1,157 Views
18 Pages

27 May 2025

Smart construction technology integrates artificial intelligence, Internet of Things, UAVs, and building information modeling to improve productivity and quality in construction. In road embankment earthworks, ground compaction quality is critical fo...

  • Article
  • Open Access
1 Citations
1,954 Views
19 Pages

26 February 2023

Accurate extraction of impermeable surfaces is important for assessing land use change and improving the urban heat island effect. Nighttime light imagery has the advantage of being efficient and cost effective, providing a new perspective for monito...

  • Article
  • Open Access
2 Citations
2,091 Views
18 Pages

A Multivariate Local Descriptor Registration Method for Surface Topography Evaluation

  • Chao Kong,
  • Yuanping Xu,
  • Zhuowei Li,
  • Chaolong Zhang,
  • Tukun Li,
  • Iain Macleod,
  • Xiangqian Jiang,
  • Dan Tang and
  • Jun Lu

5 March 2023

This paper illustrates a systematical surface topography measurement and evaluation method based on a 3D optical system. Firstly, the point cloud data of the workpiece are extracted by the use of a 3D structured light measurement system, and the STEP...

  • Article
  • Open Access
12 Citations
7,713 Views
18 Pages

2 November 2012

This paper presents a novel, real-time defect detection system, based on a best-fit polynomial interpolation, that inspects the conditions of outer surfaces. The defect detection system is an enhanced feature extraction method that employs this techn...

  • Article
  • Open Access
13 Citations
5,734 Views
18 Pages

16 April 2023

In this study, TiO2 thin films formed by dip-coating on an FTO substrate were obtained and characterized using surface, optical and electrochemical techniques. The impact of the dispersant (polyethylene glycol-PEG) on the surface (morphology, wettabi...

  • Article
  • Open Access
10 Citations
4,951 Views
16 Pages

17 August 2018

Among the multiple factors influencing the accuracy of Computed Tomography measurements, the surface extraction process is a significant contributor. The location of the surface for metrological applications is generally based on the definition of a...

  • Article
  • Open Access
917 Views
18 Pages

Maskless Electrochemical Texturing (MECT) Applied to Skin-Pass Cold Rolling

  • Paulo L. Monteiro,
  • Wilian Labiapari,
  • Washington M. Da Silva,
  • Cristiano de Azevedo Celente and
  • Henara Lillian Costa

The surface topography of the rolls used in skin-pass cold rolling determines the surface finish of rolled sheets. In this sense, work rolls can be intentionally textured to produce certain topographical features on the final sheet surface. The maskl...

  • Article
  • Open Access
8 Citations
4,116 Views
13 Pages

Effects of Helix Geometry on Magnetic Guiding of Helical Polymer Composites on a Gastric Cancer Model: A Feasibility Study

  • Yongju Kim,
  • Jeong Eun Park,
  • Jeong Jae Wie,
  • Su Geun Yang,
  • Don Haeng Lee and
  • Young-Joo Jin

24 February 2020

This study investigates the effects of soft-robot geometry on magnetic guiding to develop an efficient helical mediator on a three-dimensional (3D) gastric cancer model. Four different magnetically active helical soft robots are synthesized by the in...

  • Article
  • Open Access
2 Citations
2,410 Views
22 Pages

This study investigates the potential of hyperbolic paraboloid (hypar) shapes for enhancing wave attenuation and structural efficiency in Free-Surface Breakwaters (FSBW). A decoupled approach combining Smoothed Particle Hydrodynamics (SPH) and Finite...

  • Article
  • Open Access
3 Citations
1,883 Views
16 Pages

Bootstrapping of Corneal Optical Coherence Tomography Data to Investigate Conic Fit Robustness

  • Achim Langenbucher,
  • Nóra Szentmáry,
  • Alan Cayless,
  • Lena Münninghoff,
  • Adam Wylegala,
  • Jascha Wendelstein and
  • Peter Hoffmann

17 May 2023

Background: Fitting of parametric model surfaces to corneal tomographic measurement data is required in order to extract characteristic surface parameters. The purpose of this study was to develop a method for evaluating the uncertainties in characte...

  • Article
  • Open Access
734 Views
28 Pages

27 November 2025

Digital surface models (DSMs) derived from high-resolution satellite imagery often contain mismatches, voids, and coarse building geometry, limiting their suitability for accurate and standardized 3D reconstruction. The scarcity of finely annotated s...

  • Article
  • Open Access
910 Views
12 Pages

Adaptive Curved Slicing for En Face Imaging in Optical Coherence Tomography

  • Mingxin Li,
  • Phatham Loahavilai,
  • Yueyang Liu,
  • Xiaochen Li,
  • Yang Li and
  • Liqun Sun

10 July 2025

Optical coherence tomography (OCT) employs light to acquire high-resolution 3D images and is widely applied in fields such as ophthalmology and forensic science. A popular technique for visualizing the top view (en face) is to slice it with flat hori...

  • Article
  • Open Access
8 Citations
4,384 Views
24 Pages

First Steps towards Understanding the Non-Linear Impact of Mg on Calcite Solubility: A Molecular Dynamics Study

  • Janou A. Koskamp,
  • Sergio E. Ruiz Hernandez,
  • Nora H. De Leeuw and
  • Mariette Wolthers

13 April 2021

Magnesium (Mg2+) is one of the most common impurities in calcite and is known to have a non-linear impact on the solubility of magnesian calcites. Using molecular dynamics (MD), we observed that Mg2+ impacts overall surface energies, local free energ...

  • Article
  • Open Access
159 Citations
15,247 Views
16 Pages

18 June 2012

A filtering algorithm is proposed that accurately extracts ground data from airborne light detection and ranging (LiDAR) measurements and generates an estimated digital terrain model (DTM). The proposed algorithm utilizes planar surface features and...

  • Article
  • Open Access
6 Citations
2,783 Views
21 Pages

28 March 2024

Mobile laser scanning (MLS) systems have become an important technology for collecting and measuring road information for highway maintenance and reconstruction services. However, the efficient and accurate extraction of unstructured road surfaces fr...

  • Article
  • Open Access
19 Citations
5,021 Views
14 Pages

19 November 2016

Leak localization is essential for the safety and maintenance of storage vessels. This study proposes a novel circular acoustic emission sensor array to realize the continuous CO2 leak localization from a circular hole on the surface of a large stora...

  • Article
  • Open Access
1 Citations
4,298 Views
22 Pages

Spaceborne Radars for Mapping Surface and Subsurface Salt Pan Configuration: A Case Study of the Pozuelos Salt Flat in Northern Argentina

  • José Manuel Lattus,
  • Matías Ernesto Barber,
  • Dražen Skoković,
  • Waldo Pérez-Martínez,
  • Verónica Rocío Martínez and
  • Laura Flores

16 April 2024

Lithium mining has become a controversial issue in the transition to green technologies due to the intervention in natural basins that impact the native flora and fauna in these environments. Large resources of this element are concentrated in Andean...

  • Article
  • Open Access
7 Citations
5,508 Views
13 Pages

An Artificial Turf-Based Surrogate Surface Collector for the Direct Measurement of Atmospheric Mercury Dry Deposition

  • Naima L. Hall,
  • Joseph Timothy Dvonch,
  • Frank J. Marsik,
  • James A. Barres and
  • Matthew S. Landis

This paper describes the development of a new artificial turf surrogate surface (ATSS) sampler for use in the measurement of mercury (Hg) dry deposition. In contrast to many existing surrogate surface designs, the ATSS utilizes a three-dimensional de...

  • Article
  • Open Access
679 Views
24 Pages

29 November 2025

Tidal flats play a vital role in coastal ecosystems by supporting biodiversity, mitigating natural hazards, and functioning as blue carbon reservoirs. However, monitoring their geomorphological changes remains challenging due to high turbidity, shall...

  • Article
  • Open Access
1 Citations
2,936 Views
14 Pages

26 December 2023

The current derivation and application of traditional culture lack a scientific procedural method, and the existing processes are overly cumbersome and complex. The transformation of flat patterns requires manual modeling by professional product desi...

  • Article
  • Open Access
20 Citations
5,359 Views
11 Pages

1 March 2018

Atomistic simulations are performed to probe the anisotropic deformation in the compressions of face-centred-cubic metallic nanoparticles. In the elastic regime, the compressive load-depth behaviors can be characterized by the classical Hertzian mode...

  • Article
  • Open Access
1 Citations
1,954 Views
20 Pages

2 July 2024

Impervious surfaces serve as critical indicators for monitoring urbanization processes and assessing urban ecological conditions. The precise extraction and analysis of the spatiotemporal variations in impervious surfaces are essential for informing...

  • Article
  • Open Access
6 Citations
1,891 Views
16 Pages

Effect of Natural Inhibitors on the Corrosion Properties of Grade 2 Titanium Alloy

  • Mehrdad Faraji,
  • Luca Pezzato,
  • Arshad Yazdanpanah,
  • Giacomo Nardi,
  • Mojtaba Esmailzadeh and
  • Irene Calliari

25 October 2024

This study investigates the effects of natural inhibitors (pomegranate, algae, and tomato extracts) on the corrosion resistance of titanium (grade 2). To deepen understanding the inhibition mechanism, Molecular Dynamic (MD) and Monte Carlo (MC) simul...

  • Article
  • Open Access
4 Citations
2,517 Views
18 Pages

Analyzing Acceptor-like State Distribution of Solution-Processed Indium-Zinc-Oxide Semiconductor Depending on the In Concentration

  • Dongwook Kim,
  • Hyeonju Lee,
  • Youngjun Yun,
  • Jaehoon Park,
  • Xue Zhang,
  • Jin-Hyuk Bae and
  • Sungkeun Baang

26 July 2023

Understanding the density of state (DOS) distribution in solution-processed indium-zinc-oxide (IZO) thin-film transistors (TFTs) is crucial for addressing electrical instability. This paper presents quantitative calculations of the acceptor-like stat...

  • Article
  • Open Access
4 Citations
2,838 Views
16 Pages

9 February 2024

A full understanding of the fluid flow and heat transfer behaviors within a single fracture is important for geothermal heat extraction. In this study, models of single fractures with varying aperture and inner surface roughness (characterized by fra...

  • Article
  • Open Access
1,294 Views
13 Pages

22 August 2025

Rapid full-field surface topography measurement for large-scale wafers remains challenging due to limitations in speed, system complexity, and scalability. This work presents a interferometric system based on thin-film interference for high-precision...

  • Article
  • Open Access
2 Citations
2,581 Views
8 Pages

Enhanced Light Extraction Efficiency by Self-Masking Technology with Carbonized Photoresist for Light-Emitting Diodes

  • Xiu Zhang,
  • Shuqi Li,
  • Baoxing Wang,
  • Baojin Chen,
  • Haojie Guo,
  • Rui Yue and
  • Yong Cai

24 February 2023

This work investigates a self-masking technology for roughening the surface of light-emitting diodes (LEDs). The carbonized photoresist with a naturally nano/micro-textured rough surface was used as a mask layer. After growing the Si3N4 passivation l...

  • Article
  • Open Access
85 Citations
8,391 Views
15 Pages

20 June 2019

With over 6000 rivers and 5358 lakes, surface water is one of the most important resources in Nepal. However, the quantity and quality of Nepal’s rivers and lakes are decreasing due to human activities and climate change. Despite the advancemen...

  • Article
  • Open Access
2 Citations
604 Views
14 Pages

Photogating Regimes in Graphene: Memory-Bearing and Reset-Free Operation

  • Afshan Khaliq,
  • Hongsheng Xu,
  • Akeel Qadir,
  • Ayesha Salman,
  • Sichao Du,
  • Munir Ali and
  • Shihua Huang

2 November 2025

We demonstrate photogating in a graphene/Si–SiO2 stack, where vertical motion of photogenerated charge is converted into a corresponding change in graphene channel conductance in real time. Under pulsed illumination, holes accumulate at the Si/...

  • Article
  • Open Access
4 Citations
2,037 Views
11 Pages

Prism Couplers with Convex Output Surfaces for Nonlinear Cherenkov Terahertz Generation

  • Galiya Kh. Kitaeva,
  • Dmitrii A. Markov,
  • Daniil A. Safronenkov and
  • Natalia V. Starkova

Sideways THz generation in Mg:LiNbO3 crystal is studied considering Si-prism-lens couplers with different output surface curvatures. A theoretical approach is developed for modeling the angular distributions of THz radiation power inside the crystal,...

  • Article
  • Open Access
6 Citations
3,805 Views
18 Pages

3 February 2019

Human activities such as the rapid development of marine aquaculture in the central Jiangsu coast have had a marked impact on the tidal flat morphology. This research focuses on characterizing the spatial expansion of laver cultivation and its influe...

  • Article
  • Open Access
8 Citations
2,663 Views
14 Pages

1 April 2022

The rational fabrication of low-dimensional materials with a well-defined topology and functions is an incredibly important aspect of nanotechnology. In particular, the on-surface synthesis (OSS) methods based on the bottom-up approach enable a facil...

  • Article
  • Open Access
13 Citations
4,303 Views
18 Pages

Preparation, Characterization, and Biological Properties of Hydroxyapatite from Bigeye Snapper (Priancanthus tayenus) Bone

  • Nunnuth Jindapon,
  • Phatthranit Klinmalai,
  • Utoomporn Surayot,
  • Nuttapol Tanadchangsaeng,
  • Woradej Pichaiaukrit,
  • Yuthana Phimolsiripol,
  • Chaluntorn Vichasilp and
  • Sutee Wangtueai

1 February 2023

The optimum condition of acid hydrolysis for hydroxyapatite extraction from bigeye snapper (Priancanthus tayenus) bone and the effects of extraction time (10–60 min) and HCl concentration (2.0–5.0% w/v) on yield and hydroxyapatite propert...

  • Article
  • Open Access
4 Citations
3,481 Views
16 Pages

Efficient 3D Lidar Odometry Based on Planar Patches

  • Andres Galeote-Luque,
  • Jose-Raul Ruiz-Sarmiento and
  • Javier Gonzalez-Jimenez

15 September 2022

In this paper we present a new way to compute the odometry of a 3D lidar in real-time. Due to the significant relation between these sensors and the rapidly increasing sector of autonomous vehicles, 3D lidars have improved in recent years, with moder...

  • Article
  • Open Access
7 Citations
2,041 Views
17 Pages

Characterization of Arboblend V2 Nature Textured Surfaces Obtained by Injection Molding

  • Simona-Nicoleta Mazurchevici,
  • Oktawian Bialas,
  • Teodor Daniel Mindru,
  • Marcin Adamiak and
  • Dumitru Nedelcu

12 January 2023

Surface texturing is an engineering technology used in order to improve the surface characteristic of plastic parts obtained by injection molding. Applying this process not only changes the part surface properties, but also its topography. The novel...

  • Article
  • Open Access
1 Citations
1,353 Views
17 Pages

17 September 2024

The finishing mill is a critical link in the hot rolling process, influencing the final product’s quality, and even economic efficiency. The distribution box of the finishing mill plays a vital role in power transmission and distribution. Howev...

  • Article
  • Open Access
830 Views
17 Pages

Genetic Algorithms for Piston and Tilt Detection by Using Young Patterns

  • Ivan Piza-Davila,
  • Javier Salinas-Luna,
  • Guillermo Sanchez-Diaz,
  • Roger Chiu and
  • Miguel Mora-Gonzalez

We present some numerical results on piston and tilt detection by using the Young experiment with Genetic Algorithms (GAs). We have simulated the cophasing of a flat surface by following the experimental setup and the mathematical model for Optical P...

  • Article
  • Open Access
19 Citations
6,333 Views
24 Pages

27 February 2024

Unmanned aerial vehicle–light detection and ranging (UAV-LiDAR) provides a convenient and economical means of forest data acquisition that can penetrate canopy gaps to obtain abundant ground information, offering huge potential in forest invent...

  • Article
  • Open Access
9 Citations
5,449 Views
11 Pages

Enhanced Antioxidant Activity of Bioactives in Colored Grains by Nano-Carriers in Human Lens Epithelial Cells

  • Yoon-Mi Lee,
  • Young Yoon,
  • Haelim Yoon,
  • Sooji Song,
  • Hyun-Min Park,
  • Yu Young Lee,
  • Hyunho Shin,
  • Sung Won Hwang and
  • Kyung-Jin Yeum

The use of phytochemicals for preventing chronic diseases associated with oxidative stress such as cataracts is hindered by their low bioavailability. The effects of nano-carriers on the antioxidant activities of extracts of black rice with giant emb...

  • Article
  • Open Access
1 Citations
905 Views
18 Pages

Comparative Performance of Machine Learning Classifiers for Photovoltaic Mapping in Arid Regions Using Google Earth Engine

  • Le Zhang,
  • Zhaoming Wang,
  • Hengrui Zhang,
  • Ning Zhang,
  • Tianyu Zhang,
  • Hailong Bao,
  • Haokai Chen and
  • Qing Zhang

22 August 2025

With increasing energy demand and advancing carbon neutrality goals, arid regions—key areas for centralized photovoltaic (PV) station development in China—urgently require efficient and accurate remote sensing techniques to support spatia...

  • Article
  • Open Access
2 Citations
2,677 Views
15 Pages

27 July 2024

Due to its good conductive properties, unalloyed (pure) aluminum, such as EN AW-1050A H24, finds new fields of application in electromobility. To optimize components, the cyclic material behavior must be understood and described precisely as a founda...

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