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606 Results Found

  • Article
  • Open Access
4 Citations
2,806 Views
22 Pages

25 July 2020

It is difficult to comprehensively master and precisely regulate the external factors distribution of automobile weathering in non-uniform thermal environment as well as the consequent disequilibrium weathering problem, while exploring weather-resist...

  • Article
  • Open Access
19 Citations
7,079 Views
17 Pages

Efficiency of True-Green Light Emitting Diodes: Non-Uniformity and Temperature Effects

  • Ilya E. Titkov,
  • Sergey Yu. Karpov,
  • Amit Yadav,
  • Denis Mamedov,
  • Vera L. Zerova and
  • Edik Rafailov

18 November 2017

External quantum efficiency of industrial-grade green InGaN light-emitting diodes (LEDs) has been measured in a wide range of operating currents at various temperatures from 13 K to 300 K. Unlike blue LEDs, the efficiency as a function of current is...

  • Article
  • Open Access
571 Views
14 Pages

24 May 2025

Supercritical open channel flows contribute substantially to the air–water transfer process in spillways, rivers, and streams. They are characterized by strong turbulent mixing and a substantial amount of air entrainment. The microscopic air&nd...

  • Article
  • Open Access
5 Citations
1,989 Views
31 Pages

A Flexible Design Strategy for Three-Element Non-Uniform Linear Arrays

  • Andrea Quirini,
  • Francesca Filippini,
  • Carlo Bongioanni,
  • Fabiola Colone and
  • Pierfrancesco Lombardo

18 May 2023

This paper illustrates a flexible design strategy for a three-element non-uniform linear array (NULA) aimed at estimating the direction of arrival (DoA) of a source of interest. Thanks to the spatial diversity resulting from non-uniform sensor spacin...

  • Article
  • Open Access
1 Citations
2,647 Views
21 Pages

Two Novel Non-Uniform Quantizers with Application in Post-Training Quantization

  • Zoran Perić,
  • Danijela Aleksić,
  • Jelena Nikolić and
  • Stefan Tomić

21 September 2022

With increased network downsizing and cost minimization in deployment of neural network (NN) models, the utilization of edge computing takes a significant place in modern artificial intelligence today. To bridge the memory constraints of less-capable...

  • Feature Paper
  • Article
  • Open Access
13 Citations
5,796 Views
9 Pages

14 June 2019

We modeled a kirigami structure by considering the influence of non-uniform deforming cuts in order to theoretically design the mechanical characteristics of the structure. It is known that the end regions of kirigami structures are non-uniformly def...

  • Article
  • Open Access
285 Views
23 Pages

20 October 2025

This paper redefines point cloud density by utilizing statistical skewness derived from the geometric relationships between points and their local centroids. By comparing with a symmetric uniform reference model, this method can efficiently describe...

  • Article
  • Open Access
9 Citations
6,345 Views
29 Pages

Combining a Two Source Energy Balance Model Driven by MODIS and MSG-SEVIRI Products with an Aggregation Approach to Estimate Turbulent Fluxes over Sparse and Heterogeneous Vegetation in Sahel Region (Niger)

  • Bouchra Ait Hssaine,
  • Jamal Ezzahar,
  • Lionel Jarlan,
  • Olivier Merlin,
  • Said Khabba,
  • Aurore Brut,
  • Salah Er-Raki,
  • Jamal Elfarkh,
  • Bernard Cappelaere and
  • Ghani Chehbouni

19 June 2018

Estimates of turbulent fluxes (i.e., sensible and latent heat fluxes H and LE) over heterogeneous surfaces is not an easy task. The heterogeneity caused by the contrast in vegetation, hydric and soil conditions can generate a large spatial variabilit...

  • Article
  • Open Access
6 Citations
2,476 Views
10 Pages

Non-Uniform Bioaccumulation of Lead and Arsenic in Two Remote Regions of the Human Heart’s Left Ventricle: A Post-Mortem Study

  • Ana Cirovic,
  • Orish E. Orisakwe,
  • Aleksandar Cirovic,
  • Jovan Jevtic,
  • Danijela Tasic and
  • Nebojsa Tasic

10 August 2023

The extent of heavy-metal-induced cardiotoxicity is proportional to the levels of metal bioaccumulation, and it was previously assumed that heavy metals accumulate uniformly in the myocardium. Therefore, the aim of this study was to investigate conce...

  • Article
  • Open Access
1 Citations
1,236 Views
17 Pages

21 July 2024

In this study, we aimed to demonstrate the importance of diabatic heating in extreme rainstorm weather events induced by the Southwest China vortex (SWCV) in different precipitation regions with a similar circulation background. The results showed th...

  • Article
  • Open Access
6 Citations
3,886 Views
18 Pages

8 December 2021

In this study, computational fluid dynamics (CFD) analysis was performed to investigate the cause of the thermal stratification in the channel and the temperature non-uniformity of the plate heat exchanger. The flow velocity maldistribution of the ch...

  • Article
  • Open Access
21 Citations
7,363 Views
17 Pages

24 November 2019

A stepped spillway, which is defined as a spillway with steps on the chute, can be used to improve the energy dissipation of descending water. Although uniform stepped spillways have been studied comprehensively, non-uniform stepped spillways need mo...

  • Feature Paper
  • Article
  • Open Access
13 Citations
5,641 Views
14 Pages

12 January 2021

We designed a kirigami structure with a particular shape at both ends to provide a large uniform deformation region when stretched. When a kirigami structure is stretched, non-deformation regions, where the regions’ cuts do not open, and non-uniform...

  • Article
  • Open Access
2 Citations
4,060 Views
19 Pages

Spatial Non-Uniformity of Surface Temperature of the Dead Sea and Adjacent Land Areas

  • Pavel Kishcha,
  • Boris Starobinets,
  • Rachel T. Pinker,
  • Pavel Kunin and
  • Pinhas Alpert

28 December 2019

Pronounced spatial non-uniformity has been obtained of daytime sea surface temperature (SST) of the Dead Sea and of land surface temperature (LST) over areas adjacent to the Dead Sea. This non-uniformity was observed in the summer months, under unifo...

  • Article
  • Open Access
14 Citations
2,954 Views
25 Pages

5 August 2020

In this paper, the dynamic responses of a large-scale multiple-support road viaduct to mining-induced seismic events registered in two regions of mining activity were compared. The regions differ in geological structure, which results in discrepancie...

  • Article
  • Open Access
5 Citations
2,829 Views
17 Pages

A Target-Based Non-Uniformity Self-Correction Method for Infrared Push-Broom Hyperspectral Sensors

  • Bing Wu,
  • Chengyu Liu,
  • Rui Xu,
  • Zhiping He,
  • Bin Liu,
  • Wangli Chen and
  • Qing Zhang

21 February 2023

Non-uniformity in the response of spectral image elements is an inevitable phenomenon in hyperspectral imaging, which mainly manifests itself as the presence of band noise in the acquired hyperspectral data. This problem is prominent in the infrared...

  • Article
  • Open Access
3 Citations
2,164 Views
13 Pages

31 March 2024

Metamaterial-based designs in ultra-high field (≥7 T) MRI have the promise of increasing the local magnetic resonance imaging (MRI) signal and potentially even the global efficiency of both the radiofrequency (RF) transmit and receive resonators....

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

Hot-Spot Stress Analyses of a T-Shaped Tubular Joint Subjected to Uniform, Grooving and Non-uniform Corrosion

  • Lingsu Liu,
  • Yan Dong,
  • Haikun Yang,
  • Minghui Xu,
  • Xin Liu,
  • Lei Zhang and
  • Yordan Garbatov

2 June 2024

The study aims to investigate the impact of uniform, grooving and non-uniform corrosion degradation on the hot-spot stresses of a T-shaped tubular joint using the finite element method. The through-thickness linearization method is employed to estima...

  • Article
  • Open Access
7 Citations
2,343 Views
17 Pages

18 January 2023

In practice, the outflow from a diffuser is highly non-uniform due to many reasons. However, the air outflow velocity from a diffuser is uniform in most current studies. Little research has been conducted to determine under what conditions uniform ve...

  • Article
  • Open Access
33 Citations
4,205 Views
12 Pages

Influence of Oxygen Diffusion on Thermal Ageing of Cross-Linked Polyethylene Cable Insulation

  • Yuanyuan Zhang,
  • Zongke Hou,
  • Kangning Wu,
  • Shihang Wang,
  • Jianying Li and
  • Shengtao Li

29 April 2020

Thermal ageing of cross-linked polyethylene (XLPE) cable insulation is an important issue threatening the safe operation of power cables. In this paper, thermal ageing of XLPE was carried out at 160 °C in air for 240 h. The influence of oxygen di...

  • Article
  • Open Access
39 Citations
5,818 Views
11 Pages

Wideband Circularly Polarized Antenna Based on a Non-Uniform Metasurface

  • Tuan Tu Le,
  • Huy Hung Tran and
  • Ayman Abdulhadi Althuwayb

3 December 2020

This paper presents a non-uniform metasurface (MS)-based circularly polarized (CP) antenna that is able to perform with a wideband operation characteristic. A squared patch with truncated corners was chosen as a radiating CP source. Then, unlike the...

  • Article
  • Open Access
1 Citations
1,293 Views
17 Pages

13 December 2024

Traditional studies on Transient Electromagnetic Method (TEM) typically assume that the subsurface medium is non-magnetic. However, in regions with igneous rock accumulations or where the subsurface is rich in ferromagnetic minerals, neglecting the m...

  • Article
  • Open Access
7 Citations
2,382 Views
20 Pages

20 November 2020

The tip clearance has an important effect on the performance of an engine compressor. While the impact of tip clearance on a concentric compressor has been widely explored in previous research, the flow field distribution of an eccentric compressor h...

  • Feature Paper
  • Article
  • Open Access
8 Citations
6,856 Views
14 Pages

Leakage Current Non-Uniformity and Random Telegraph Signals in CMOS Image Sensor Floating Diffusions Used for In-Pixel Charge Storage

  • Alexandre Le Roch,
  • Vincent Goiffon,
  • Olivier Marcelot,
  • Philippe Paillet,
  • Federico Pace,
  • Jean-Marc Belloir,
  • Pierre Magnan and
  • Cédric Virmontois

16 December 2019

The leakage current non-uniformity, as well as the leakage current random and discrete fluctuations sources, are investigated in pinned photodiode CMOS image sensor floating diffusions. Different bias configurations are studied to evaluate the electr...

  • Article
  • Open Access
18 Citations
2,949 Views
46 Pages

In the last decade, many factors, such as socio-political and econo-environmental ones, have led to a perturbation in the timeline of the worldwide development, and especially in countries and regions having political changes. This led us to introduc...

  • Article
  • Open Access
1 Citations
740 Views
30 Pages

16 June 2025

Enhancing low-light remote sensing images is crucial for preserving the accuracy and reliability of downstream analyses in a wide range of applications. Although numerous enhancement algorithms have been developed, many fail to effectively address th...

  • Communication
  • Open Access
1 Citations
4,354 Views
9 Pages

External-Voltage-Free Dielectrophoresis of Liquid Crystal Droplets

  • Sheng-Kuang Wu,
  • Ting-Shan Mo,
  • Jia-De Lin,
  • Shuan-Yu Huang,
  • Hui-Chen Yeh,
  • Lin-Jer Chen and
  • Chia-Rong Lee

3 July 2017

This work reports, for the first time, a dielectrophoresis (DEP) effect-induced motion of liquid crystal (LC) droplets in an LC/monomer mixture sample with a poly-(N-vinyl carbazole) PVK-coated substrate without an external voltage. With the UV pre-i...

  • Article
  • Open Access
855 Views
17 Pages

The influence of acoustic field distribution and temperature variations on the full-aperture diffraction efficiency of non-collinear acousto-optic tunable filters (AOTFs) was investigated based on tellurium dioxide crystals. The strong acoustic aniso...

  • Article
  • Open Access
3 Citations
2,427 Views
26 Pages

10 August 2022

A distributed propulsion system has the advantage of saving 5–15% fuel burn through ingesting the fuselage boundary layer of an aircraft by fan or compressor. However, due to boundary layer ingestion (BLI), the fan stage will continuously opera...

  • Article
  • Open Access
8 Citations
7,172 Views
11 Pages

8 June 2011

In wireless sensor networks (WSNs), the energy hole problem is a key factor affecting the network lifetime. In a circular multi-hop sensor network (modeled as concentric coronas), the optimal transmission ranges of all coronas can effectively improve...

  • Article
  • Open Access
811 Views
30 Pages

Progressive Multi-Scale Perception Network for Non-Uniformly Blurred Underwater Image Restoration

  • Dechuan Kong,
  • Yandi Zhang,
  • Xiaohu Zhao,
  • Yanyan Wang and
  • Yanqiang Wang

2 September 2025

Underwater imaging is affected by spatially varying blur caused by water flow turbulence, light scattering, and camera motion, resulting in severe visual quality loss and diminished performance in downstream vision tasks. Although numerous underwater...

  • Article
  • Open Access
18 Citations
6,164 Views
14 Pages

9 December 2021

A switched reluctance motor has a very simple structure which becomes its key signature and leads to various advantages. However, because of its double saliency and switching principle, the motor is also known to have a relatively high torque ripple,...

  • Article
  • Open Access
26 Citations
5,932 Views
11 Pages

Non-Uniform and Non-Random Binding of Nucleoprotein to Influenza A and B Viral RNA

  • Valerie Le Sage,
  • Adalena V. Nanni,
  • Amar R. Bhagwat,
  • Dan J. Snyder,
  • Vaughn S. Cooper,
  • Seema S. Lakdawala and
  • Nara Lee

25 September 2018

The genomes of influenza A and B viruses have eight, single-stranded RNA segments that exist in the form of a viral ribonucleoprotein complex in association with nucleoprotein (NP) and an RNA-dependent RNA polymerase complex. We previously used high-...

  • Article
  • Open Access
547 Views
21 Pages

In light of the computational efficiency bottleneck and inadequate regional feature representation in traditional global data approximation methods, this paper introduces the concept of non-uniform partition to transform global continuous approximati...

  • Article
  • Open Access
7 Citations
2,166 Views
28 Pages

4 February 2024

Acid in situ leaching (ISL) is a common approach to the recovery of uranium in the subsurface. In acid ISL, there are numerous of chemical reactions among the injected sulfuric acid, groundwater, and porous media containing ore layers. A substantial...

  • Article
  • Open Access
17 Citations
6,316 Views
24 Pages

18 February 2020

Untethered nano-/microrobots have been appealing to biomedical applications under magnetic guidance. Numerous actuation systems are specifically designed to generate either uniform or non-uniform fields which are unable to support all actuating mecha...

  • Article
  • Open Access
2 Citations
1,883 Views
12 Pages

Surface-Initiated Polymerization with an Initiator Gradient: A Monte Carlo Simulation

  • Zhining Huang,
  • Caixia Gu,
  • Jiahao Li,
  • Peng Xiang,
  • Yanda Liao,
  • Bang-Ping Jiang,
  • Shichen Ji and
  • Xing-Can Shen

25 April 2024

Due to the difficulty of accurately characterizing properties such as the molecular weight (Mn) and grafting density (σ) of gradient brushes (GBs), these properties are traditionally assumed to be uniform in space to simplify analysis. Applying...

  • Communication
  • Open Access
7 Citations
2,317 Views
10 Pages

The Effect of Non-Uniform Irradiation on Laser Photovoltaics: Experiments and Simulations

  • Hao Wang,
  • Jun Wang,
  • Huomu Yang,
  • Guoliang Deng,
  • Qingdong Yang,
  • Ruijun Niu and
  • Yudan Gou

Laser wireless power transmission (LWPT) has various applications for mobile devices and specific equipment under extreme conditions. The light spot received by laser photovoltaics is usually non-uniform, resulting in system efficiency reduction. The...

  • Article
  • Open Access
3 Citations
5,277 Views
23 Pages

Restoration of Bi-Contrast MRI Data for Intensity Uniformity with Bayesian Coring of Co-Occurrence Statistics

  • Stathis Hadjidemetriou,
  • Marios Nikos Psychogios,
  • Paul Lingor,
  • Kajetan Von Eckardstein and
  • Ismini Papageorgiou

15 December 2017

The reconstruction of MRI data assumes a uniform radio-frequency field. However, in practice, the radio-frequency field is inhomogeneous and leads to anatomically inconsequential intensity non-uniformities across an image. An anatomic region can be i...

  • Article
  • Open Access
1 Citations
1,788 Views
20 Pages

16 June 2022

The research and development of special robots such as excavation robots is an important way to achieve safe and efficient production in coal mines. Affected by the unstructured environment such as complex working conditions and unsteady factor distu...

  • Article
  • Open Access
2 Citations
1,271 Views
17 Pages

25 September 2024

Magnetotelluric (MT) forward modeling is essential in geophysical exploration, enabling the investigation of the Earth’s subsurface electrical conductivity. Traditional finite difference methods (FDMs) typically use uniform grids, which can be...

  • Article
  • Open Access
2 Citations
1,795 Views
23 Pages

Additive manufacturing of magnesium (Mg) alloys is of interest for the fabrication of complex-shaped lightweight materials. This study evaluates the microstructure of WE43 Mg alloy deposited using laser powder directed energy deposition (LPDED) addit...

  • Article
  • Open Access
15 Citations
3,227 Views
11 Pages

Limitations of Structural Insight into Ultrafast Melting of Solid Materials with X-ray Diffraction Imaging

  • Victor Tkachenko,
  • Malik M. Abdullah,
  • Zoltan Jurek,
  • Nikita Medvedev,
  • Vladimir Lipp,
  • Mikako Makita and
  • Beata Ziaja

2 June 2021

In this work, we analyze the application of X-ray diffraction imaging techniques to follow ultrafast structural transitions in solid materials using the example of an X-ray pump–X-ray probe experiment with a single-crystal silicon performed at a Lina...

  • Article
  • Open Access
3 Citations
2,916 Views
27 Pages

Impact of Injection Rate on Flow Mixing during the Refining Stage in an Electric Arc Furnace

  • Orlando Ugarte,
  • Neel Busa,
  • Bikram Konar,
  • Tyamo Okosun and
  • Chenn Q. Zhou

23 January 2024

During the refining stage of electric arc furnace (EAF) operation, molten steel is stirred to facilitate gas/steel/slag reactions and the removal of impurities, which determines the quality of the steel. The stirring process can be driven by the inje...

  • Article
  • Open Access
4 Citations
1,671 Views
11 Pages

25 September 2023

Thermoelastic buckling of micro/nano-beams subjected to non-uniform temperature distribution is investigated in this paper. The mechanical governing equation is derived based on the surface effect and mechanical non-local effect. The non-local heat c...

  • Article
  • Open Access
4 Citations
2,254 Views
14 Pages

30 November 2021

Motivated by the fact that uniform quantization is not suitable for signals having non-uniform probability density functions (pdfs), as the Laplacian pdf is, in this paper we have divided the support region of the quantizer into two disjunctive regio...

  • Article
  • Open Access
319 Views
23 Pages

Mitigating Out-of-Plane Fiber Waviness in AFP Laminates with Tow-Gaps via Selective Placement of Thermoplastic Veils

  • Ahmadreza Ravangard,
  • Kuthan Celebi,
  • Sergii G. Kravchenko and
  • Oleksandr G. Kravchenko

24 October 2025

Fiber tow-gaps and overlaps formed during the Automated Fiber Placement (AFP) process pose a significant challenge by introducing non-uniform composite morphologies, often characterized by resin-rich regions and fiber waviness. These defects occur as...

  • Article
  • Open Access
1 Citations
996 Views
20 Pages

12 February 2025

The main steam pipe elbow is a critical metallic component in thermal power plants. Due to prolonged exposure to high temperatures and pressures, it experiences microstructural degradation and creep damage, thereby affecting its service life. Current...

  • Article
  • Open Access
634 Views
20 Pages

19 August 2025

Accurate computation of external heat flux is critical for spacecraft thermal analysis and thermal control system design. The traditional method, which adopted the uniform planetary infrared radiation model (UPIRM), is inadequate for lunar orbital mi...

  • Article
  • Open Access
10 Citations
2,727 Views
18 Pages

Effect of Local Fluid Disturbance Induced by Weld Reinforcement Height on the Corrosion of a Low Alloy Steel Weld

  • Kexin Zheng,
  • Hongxiang Hu,
  • Zhengbin Wang,
  • Yugui Zheng,
  • Liang Zhao and
  • Xianhe Shang

3 January 2023

Weld corrosion exists widely in the petrochemical industry and attracts great attention. Most research proves that weld corrosion originates from the material factors introduced during the welding process. However, it is noted that local fluid turbul...

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