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57 Results Found

  • Review
  • Open Access
2,429 Views
20 Pages

Hashing in the Fight Against CSAM: Technology at the Crossroads of Law and Ethics

  • Evangelia Daskalaki,
  • Emmanouela Kokolaki and
  • Paraskevi Fragopoulou

Hashes are vital in limiting the spread of child sexual abuse material online, yet their use introduces unresolved technical, legal, and ethical challenges. This paper bridges a critical gap by analyzing both cryptographic and perceptual hashing, not...

  • Review
  • Open Access
215 Views
30 Pages

A Review of the Parameters Controlling Crack Growth in AM Steels and Its Implications for Limited-Life AM and CSAM Parts

  • Rhys Jones,
  • Andrew Ang,
  • Nam Phan,
  • Michael R. Brindza,
  • Michael B. Nicholas,
  • Chris Timbrell,
  • Daren Peng and
  • Ramesh Chandwani

16 January 2026

This paper reviews the fracture mechanics parameters associated with the variability in the crack growth curves associated with forty-two different tests that range from additively manufactured (AM) steels to cold spray additively manufactured (CSAM)...

  • Article
  • Open Access
5 Citations
25,124 Views
19 Pages

30 October 2024

Although the escalation in online child sexual abuse material (CSAM) is not a novel problem, recent digital proliferation has brought about new alarming challenges in addressing the issue. CSAM poses significant risks to children and society in gener...

  • Article
  • Open Access
4 Citations
2,487 Views
15 Pages

Few-Shot Image Classification Based on Swin Transformer + CSAM + EMD

  • Huadong Sun,
  • Pengyi Zhang,
  • Xu Zhang and
  • Xiaowei Han

In few-shot image classification (FSIC), the feature extraction module of the traditional convolutional neural networks is often constrained by the local nature of the convolutional kernel. As a result, it becomes challenging to handle global informa...

  • Article
  • Open Access
6 Citations
3,521 Views
18 Pages

26 January 2023

As the monitor probes are used more and more widely these days, the task of detecting abnormal behaviors in surveillance videos has gained widespread attention. The generalization ability and parameter overhead of the model affect how accurate the de...

  • Review
  • Open Access
12 Citations
5,652 Views
27 Pages

7 November 2024

Cold spray additive manufacturing (CSAM) is a cutting-edge high-speed additive manufacturing process enabling the production of high-strength components without relying on traditional high-temperature methods. Unlike other techniques, CSAM produces o...

  • Article
  • Open Access
3 Citations
2,196 Views
15 Pages

Effects of Process Parameters on Cold Spray Additive Manufacturing of Quasicrystalline Al93Fe3Cr2Ti2 Alloy

  • Aylanna Priscila Marques de Araujo,
  • Felipe B. Do M. Carmelo,
  • Erlifas M. Rocha,
  • Claudio S. Kiminami and
  • Piter Gargarella

14 July 2023

Quasicrystalline Al93Fe3Cr2Ti2 (at.%) gas-atomized powders, which exhibit a metastable composite microstructure, were used to produce coatings by cold spray additive manufacturing processing (CSAM) using different processing parameters. The metastabl...

  • Article
  • Open Access
1,668 Views
14 Pages

German Version of the Child Sexual Abuse Myth Scale (CSAMS-G): Translation, Expansion, and Construct Validation

  • Lennart Bayer,
  • Maike Cigelski,
  • Justine Eilfgang,
  • Elisabeth Barbara Kraus,
  • Frieda Mensing and
  • Simone Pülschen

28 January 2025

Research is needed on the myths regarding child sexual abuse in order to address commonly held misconceptions in persons training for professional careers in relevant fields for child protection. We present our translated, validated, and expanded Chi...

  • Review
  • Open Access
80 Citations
22,059 Views
44 Pages

A Review of Advances in Cold Spray Additive Manufacturing

  • Rodolpho Fernando Vaz,
  • Andrea Garfias,
  • Vicente Albaladejo,
  • Javier Sanchez and
  • Irene Garcia Cano

23 January 2023

Cold Spray Additive Manufacturing (CSAM) produces freeform parts by accelerating powder particles at supersonic speed which, impacting against a substrate material, trigger a process to consolidate the CSAM part by bonding mechanisms. The literature...

  • Article
  • Open Access
27 Citations
17,269 Views
19 Pages

26 November 2020

With technological advances, the creation and distribution of child sexual abuse material (CSAM) has become one of the fastest growing illicit online industries in the United States. Perpetrators are becoming increasingly sophisticated and exploit cu...

  • Article
  • Open Access
1 Citations
1,568 Views
16 Pages

Clinical Significance of Sarcopenia Defined by the Cross-Sectional Area of the Masseter Muscle in Cerebrovascular Events: A Retrospective Cohort Study

  • Fatih Seğmen,
  • Semih Aydemir,
  • Temel Kayan,
  • Firdevs Tuğba Bozkurt Biçer,
  • Cihangir Doğu,
  • Esra Yakışık Aktekin,
  • Deniz Erdem and
  • Elif Uzun Ata

4 February 2025

Background and Objectives: This study aimed to investigate the clinical significance of sarcopenia, defined by the cross-sectional area of the masseter muscle (CSA-M), as an early marker for sarcopenia diagnosis and its association with mortality in...

  • Article
  • Open Access
7 Citations
4,416 Views
21 Pages

Attention-Based Matching Approach for Heterogeneous Remote Sensing Images

  • Huitai Hou,
  • Chaozhen Lan,
  • Qing Xu,
  • Liang Lv,
  • Xin Xiong,
  • Fushan Yao and
  • Longhao Wang

27 December 2022

Heterogeneous images acquired from various platforms and sensors provide complementary information. However, to use that information in applications such as image fusion and change detection, accurate image matching is essential to further process an...

  • Article
  • Open Access
10 Citations
5,084 Views
21 Pages

Life Cycle Assessment of Cold Spray Additive Manufacturing and Conventional Machining of Aluminum Alloy Flange

  • Dileep Kumar,
  • Suresh Palanisamy,
  • Kannoorpatti Krishnan and
  • Md Morshed Alam

1 October 2023

Cold spray additive manufacturing (CSAM) is generally used to repair worn components and build complex on-demand parts by depositing metal powder layer-wise using compressed air. Previous studies on CSAM were focused on printing parameters, materials...

  • Systematic Review
  • Open Access
1 Citations
2,265 Views
56 Pages

Due to its unique benefits over conventional subtractive manufacturing, additive manufacturing methods continue to attract interest in both academia and industry. One such method is called Cold Spray Additive Manufacturing (CSAM), a solid-state coati...

  • Article
  • Open Access
9 Citations
2,700 Views
13 Pages

14 October 2022

Cold Spray additive manufacturing (CSAM) is an emerging technique to fabricate freestanding objects by depositing solid-state layers of materials. Thanks to its remarkable deposition rate and maneuverability, it can be tailored to manufacturing intri...

  • Article
  • Open Access
23 Citations
3,045 Views
17 Pages

Metal Knitting: A New Strategy for Cold Gas Spray Additive Manufacturing

  • Rodolpho F. Vaz,
  • Vicente Albaladejo-Fuentes,
  • Javier Sanchez,
  • Unai Ocaña,
  • Ziortza G. Corral,
  • Horacio Canales and
  • Irene G. Cano

30 September 2022

Cold Spray Additive Manufacturing (CSAM) is an emergent technique to produce parts by the additive method, and, like other technologies, it has pros and cons. Some advantages are using oxygen-sensitive materials to make parts, such as Ti alloys, with...

  • Review
  • Open Access
5 Citations
4,680 Views
20 Pages

12 February 2025

CSAM is a solid-state process for depositing metal or metal-based composite materials in which the fine particles of metal or composite material are accelerated to supersonic velocity, making successful bonding feasible due to the high-impact velocit...

  • Article
  • Open Access
490 Views
15 Pages

10 November 2025

Cold-spray additive manufacturing (CSAM) is an emerging solid-state deposition technology that effectively mitigates common defects associated with conventional thermal processes, such as oxidation, phase transformation, and residual stresses. In thi...

  • Abstract
  • Open Access
434 Views
5 Pages

Thermography-Assisted Mechanical Testing of Cold-Spray (AM) Repair

  • Somsubhro Chaudhuri,
  • Sruthi Krishna Kunji Purayil,
  • Julius Kruse,
  • Mauro Madia and
  • Sören Nielsen

Cold Spray Additive Manufacturing (CSAM) is a solid-state process that is being increasingly used for structural repairs in aerospace and energy sectors. It enables the deposition of dense material at low temperatures by accelerating metal particles...

  • Article
  • Open Access
1,327 Views
13 Pages

Solid State Additive Manufacturing of Thermoset Composites

  • Bo Hong,
  • Kaifeng Wang,
  • Yang Li,
  • Shuhan Ren and
  • Peihua Gu

26 August 2024

Softening and subsequent deformation are significant challenges in additive manufacturing of thermal-curable thermosets. This study proposes an approach to address these issues, involving the preparation of thermosetting composite powders with distin...

  • Article
  • Open Access
816 Views
13 Pages

20 September 2025

Adversarial attacks against deep learning models achieve high performance in white-box settings but often exhibit low transferability in black-box scenarios, especially against defended models. In this work, we propose Multi-Path Random Restart (MPRR...

  • Article
  • Open Access
9 Citations
6,520 Views
13 Pages

Intervention of Climate-Smart Practices in Wheat under Rice-Wheat Cropping System in Nepal

  • Janma Jaya Gairhe,
  • Mandeep Adhikari,
  • Deepak Ghimire,
  • Arun Khatri-Chhetri and
  • Dinesh Panday

20 January 2021

Besides a proper agronomic management followed by Nepalese farmers, wheat (Triticum aestivum L.) production has been severely affected by changing climate. There are many interventions, including climate-smart practices, to cope with this situation a...

  • Article
  • Open Access
6 Citations
2,860 Views
17 Pages

Compression Reconstruction Network with Coordinated Self-Attention and Adaptive Gaussian Filtering Module

  • Zhen Wei,
  • Qiurong Yan,
  • Xiaoqiang Lu,
  • Yongjian Zheng,
  • Shida Sun and
  • Jian Lin

7 February 2023

Although compressed sensing theory has many advantages in image reconstruction, its reconstruction and sampling time is very long. Fast reconstruction of high-quality images at low measurement rates is the direction of the effort. Compressed sensing...

  • Article
  • Open Access
6 Citations
2,841 Views
19 Pages

Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing

  • Parminder Singh,
  • Surinder Singh,
  • Harpreet Singh,
  • Eklavya Calla,
  • Harpreet Singh Grewal,
  • Harpreet Singh Arora and
  • Anand Krishnamurthy

Hot corrosion is a critical problem in a wide range of high-temperature applications. Ni–20Cr alloy is frequently used in such applications owing to its good hot-corrosion resistance. In the current work, thick Ni–20Cr plates in a thickness range of...

  • Article
  • Open Access
1,447 Views
43 Pages

7 June 2025

Masked cold spray additive manufacturing (CSAM) is investigated for fabricating nickel-based electrodes with pyramidal pin-fins that enlarge the active area for the hydrogen-evolution reaction (HER). To bypass the high cost of purely CFD-driven optim...

  • Article
  • Open Access
13 Citations
2,764 Views
17 Pages

HA-Unet: A Modified Unet Based on Hybrid Attention for Urban Water Extraction in SAR Images

  • Huina Song,
  • Han Wu,
  • Jianhua Huang,
  • Hua Zhong,
  • Meilin He,
  • Mingkun Su,
  • Gaohang Yu,
  • Mengyuan Wang and
  • Jianwu Zhang

17 November 2022

Urban water plays a significant role in the urban ecosystem, but urban water extraction is still a challenging task in automatic interpretation of synthetic aperture radar (SAR) images. The influence of radar shadows and strong scatters in urban area...

  • Article
  • Open Access
1,406 Views
10 Pages

Roughing Nitrogen-Doped Carbon Nanosheets for Loading of Monatomic Fe and Electroreduction of CO2 to CO

  • Yuxuan Liu,
  • Yufan Tan,
  • Keyi Zhang,
  • Tianqi Guo,
  • Yao Zhu,
  • Ting Cao,
  • Haiyang Lv,
  • Junpeng Zhu,
  • Ze Gao and
  • Juzhe Liu
  • + 2 authors

25 November 2024

The catalyst is the pivotal component in CO2 electroreduction systems for converting CO2 into valuable products. Carbon-based single-atom materials (CSAMs) have emerged as promising catalyst candidates due to their low cost and high atomic utilizatio...

  • Article
  • Open Access
32 Citations
3,890 Views
23 Pages

8 April 2023

Gearboxes are one of the most widely used speed and power transfer elements in rotating machinery. Highly accurate compound fault diagnosis of gearboxes is of great significance for the safe and reliable operation of rotating machinery systems. Howev...

  • Article
  • Open Access
14 Citations
2,118 Views
19 Pages

Geometry and Microstructure Control of Remanufactured Metallic Parts by Cold Spray Additive Manufacturing

  • Andrea Garfias,
  • Rodolpho Vaz,
  • Vicente Albaladejo-Fuentes,
  • Javier Sánchez and
  • Irene Garcia Cano

30 June 2023

Cold Spray Additive Manufacturing (CSAM) is a thermal spray technique that is typically used for the repair of metallic components. One of the challenges of CSAM is to improve the geometrical accuracy of the sprayed parts, along with overcoming the i...

  • Article
  • Open Access
3 Citations
2,357 Views
20 Pages

Crystal Plasticity Modeling to Capture Microstructural Variations in Cold-Sprayed Materials

  • Aulora Williams,
  • YubRaj Paudel,
  • Shiraz Mujahid,
  • Marc Pepi,
  • Peter Czech,
  • Haitham El Kadiri and
  • Hongjoo Rhee

30 March 2024

The high-velocity impact of powder particles in cold-spray additively manufactured (CSAM) parts creates intersplat boundaries with regions of high dislocation densities and sub-grain structures. Upon microstructure and mechanical characterization, CS...

  • Article
  • Open Access
10 Citations
6,139 Views
19 Pages

Spatial-Temporal Analysis of PM2.5 and NO2 Concentrations Collected Using Low-Cost Sensors in Peñuelas, Puerto Rico

  • Stephen Reece,
  • Ron Williams,
  • Maribel Colón,
  • David Southgate,
  • Evelyn Huertas,
  • Marie O’Shea,
  • Ariel Iglesias and
  • Patricia Sheridan

7 December 2018

The U.S. Environmental Protection Agency (EPA) is involved in the discovery, evaluation, and application of low-cost air quality (AQ) sensors to support citizen scientists by directly engaging with them in the pursuit of community-based interests. Th...

  • Article
  • Open Access
1 Citations
3,019 Views
10 Pages

20 October 2021

This study aims to introduce a new compressed sensing averaging (CSA) technique for the reduction of blurring and/or ringing artifacts, depending on the k-space sampling ratio. A full k-space dataset and three randomly undersampled datasets were obta...

  • Article
  • Open Access
1 Citations
991 Views
16 Pages

6 September 2025

Infrared small target detection (IRSTD) remains a critical yet challenging task due to the inherent low signal-to-noise ratio, weak target features, and complex backgrounds prevalent in infrared images. Existing methods often struggle to effectively...

  • Article
  • Open Access
2 Citations
785 Views
16 Pages

Microstructure and Tensile Properties of Cu-Ti Composites Deposited by Cold Spray Additive Manufacturing

  • Jia Cheng,
  • Jibo Huang,
  • Haifan Li,
  • Kejie Zhang,
  • Haiming Lan,
  • Hongmin Xin and
  • Renzhong Huang

13 June 2025

In this study, copper–titanium (Cu-Ti) composite coatings with 6 wt.% titanium content were fabricated via cold spray additive manufacturing (CSAM) using nitrogen as the propellant gas. The synergistic effects of propellant gas temperatures (60...

  • Article
  • Open Access
1 Citations
1,903 Views
17 Pages

5 December 2024

Brain tumors are serious conditions, which can cause great trauma to patients, endangering their health and even leading to disability or death. Therefore, accurate preoperative diagnosis is particularly important. Accurate brain tumor segmentation b...

  • Article
  • Open Access
16 Citations
1,780 Views
17 Pages

Integrating Explanations into CNNs by Adopting Spiking Attention Block for Skin Cancer Detection

  • Inzamam Mashood Nasir,
  • Sara Tehsin,
  • Robertas Damaševičius and
  • Rytis Maskeliūnas

5 December 2024

Lately, there has been a substantial rise in the number of identified individuals with skin cancer, making it the most widespread form of cancer worldwide. Until now, several machine learning methods that utilize skin scans have been directly employe...

  • Article
  • Open Access
7 Citations
5,965 Views
20 Pages

24 July 2025

To mitigate the technical challenges associated with small-object detection, feature degradation, and spatial-contextual misalignment in UAV-acquired imagery, this paper proposes UAV-DETR, an enhanced Transformer-based object detection model designed...

  • Article
  • Open Access
3 Citations
2,074 Views
16 Pages

Ground-Based Cloud Image Segmentation Method Based on Improved U-Net

  • Deyang Yin,
  • Jinxin Wang,
  • Kai Zhai,
  • Jianfeng Zheng and
  • Hao Qiang

3 December 2024

Cloud image segmentation is a technique that divides images captured by meteorological satellites or ground-based observations into different regions or categories. By extracting the distribution, shape, and dynamic features of clouds, it provides pr...

  • Article
  • Open Access
10 Citations
4,106 Views
19 Pages

Edge Detection via Fusion Difference Convolution

  • Zhenyu Yin,
  • Zisong Wang,
  • Chao Fan,
  • Xiaohui Wang and
  • Tong Qiu

3 August 2023

Edge detection is a crucial step in many computer vision tasks, and in recent years, models based on deep convolutional neural networks (CNNs) have achieved human-level performance in edge detection. However, we have observed that CNN-based methods r...

  • Article
  • Open Access
23 Citations
4,358 Views
16 Pages

6 February 2022

Cold spray additive manufacturing (CSAM) shows great potential in titanium-alloy production as it is a solid-state process. However, data published so far have demonstrated the difficulty of producing dense and high-strength Ti alloy parts. Our previ...

  • Article
  • Open Access
491 Views
19 Pages

21 November 2025

The manual inspection of electric water heater enamel is inefficient and unreliable, a challenge stemming from the tank’s narrow (approx. 50 mm) aperture that creates extremely dim, non-uniform lighting. Existing enhancement algorithms struggle...

  • Article
  • Open Access
9 Citations
3,535 Views
17 Pages

29 January 2022

Micro-electro-mechanical system (MEMS) vapor cells are key components for sensors such as chip-scale atomic clocks (CSACs) and magnetometers (CSAMs). Many approaches have been proposed to fabricate MEMS vapor cells. In this article, we propose a new...

  • Article
  • Open Access
1 Citations
1,944 Views
21 Pages

15 August 2024

In recent years, EEG-based emotion recognition technology has made progress, but there are still problems of low model efficiency and loss of emotional information, and there is still room for improvement in recognition accuracy. To fully utilize EEG...

  • Article
  • Open Access
3 Citations
1,541 Views
25 Pages

The acoustic performance of automotive micro-motors directly impacts the comfort and driving experience of both drivers and passengers. However, various motor production and testing uncertainties can lead to noise fluctuations during operation. Thus,...

  • Article
  • Open Access
10 Citations
5,166 Views
11 Pages

Low Temperature Hydrophilic SiC Wafer Level Direct Bonding for Ultrahigh-Voltage Device Applications

  • Wenting Zhang,
  • Caorui Zhang,
  • Junmin Wu,
  • Fei Yang,
  • Yunlai An,
  • Fangjing Hu and
  • Ji Fan

17 December 2021

SiC direct bonding using O2 plasma activation is investigated in this work. SiC substrate and n− SiC epitaxy growth layer are activated with an optimized duration of 60s and power of the oxygen ion beam source at 20 W. After O2 plasma activatio...

  • Article
  • Open Access
20 Citations
3,028 Views
22 Pages

23 April 2023

The change-detection task is essentially a binary semantic segmentation task of changing and invariant regions. However, this is much more difficult than simple binary tasks, as the changing areas typically include multiple terrains such as factories...

  • Article
  • Open Access
1 Citations
3,797 Views
17 Pages

24 November 2022

Image super resolution (SR) is an important image processing technique in computer vision to improve the resolution of images and videos. In recent years, deep convolutional neural network (CNN) has made significant progress in the field of image SR;...

  • Article
  • Open Access
11 Citations
2,695 Views
19 Pages

28 April 2024

Cloud detection technology is crucial in remote sensing image processing. While cloud detection is a mature research field, challenges persist in detecting clouds on reflective surfaces like ice, snow, and sand. Particularly, the detection of cloud s...

  • Article
  • Open Access
5 Citations
1,925 Views
25 Pages

10 August 2024

As energy storage technologies and electric vehicles evolve quickly, it becomes increasingly difficult to precisely gauge the condition (SOH) of lithium-ion batteries (LiBs) during rapid charging scenarios. This paper introduces a novel Time-Fused Me...

  • Article
  • Open Access
9 Citations
2,498 Views
16 Pages

Automatic Water Body Extraction from SAR Images Based on MADF-Net

  • Jing Wang,
  • Dongmei Jia,
  • Jiaxing Xue,
  • Zhongwu Wu and
  • Wanying Song

14 September 2024

Water extraction from synthetic aperture radar (SAR) images has an important application value in wetland monitoring, flood monitoring, etc. However, it still faces the problems of low generalization, weak extraction ability of detailed information,...

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