Article
Optics
Zhuo Zhao, Bing Li, Tongkun Liu, Shaojie Zhang, Jiasheng Lu, Leqi Geng, Jie Cao
Summary: The proposed method successfully addresses the drawbacks of manual quality inspection in the battery industry by utilizing an online vision system and defect detection technique for battery screen print, improving both fault detection accuracy and system adaptability in the process.
Review
Cell Biology
Benjamin J. Bielajew, Ryan P. Donahue, M. Gabriela Espinosa, Boaz Arzi, Dean Wang, David C. Hatcher, Nikolaos K. Paschos, Mark E. K. Wong, Jerry C. Hu, Kyriacos A. Athanasiou
Summary: Despite similar incidence of cartilage ailments, the knee orthopedics field has greater funding and more effective treatment options compared to the temporomandibular joint (TMJ). Translational research can drive the development of clinical products for the TMJ, which lags behind knee orthopedics in terms of research output and total joint replacement frequency. More funding opportunities, training programs, and federal guidance could lead to novel therapeutics benefiting millions of people with TMJ disorders.
CELL REPORTS MEDICINE
(2021)
Article
Chemistry, Physical
Ahmed Al-Yaseri, Hani Al-Mukainah, Nurudeen Yekeen, Abdulaziz S. Al-Qasim
Summary: This study examines the reactions between injected hydrogen and calcite/dolomite minerals in underground hydrogen storage (UHS) in carbonate formations. X-ray computed micro-tomography (mCT) scans of limestone and dolomite cores before and after pressurization with hydrogen are conducted. The findings show that calcite expansion leads to a significant reduction in storage capacity by 47%, while dolomite storage capacity slightly increases. This highlights the importance of evaluating hydrogen reactivity with carbonate minerals to mitigate risks in hydrogen storage projects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Analytical
Xinyu Liu, Yao Li, Yiyu Guo, Luoyu Zhou
Summary: Printing defects are common in manufacturing industry, but their stability and practicality in detection have received limited attention. Current printing defect detection is affected by external environmental factors, leading to poor detection rates and practicality. This research proposes a method based on scale-adaptive template matching and image alignment for printing defect detection. Experimental results show that the proposed method achieves an accuracy of 93.62% and demonstrates state-of-the-art defect detection performance with real-time detection and anti-interference capabilities.
Article
Engineering, Mechanical
Ku-Chin Lin, Min-Hsiung Ma
Summary: This study develops a novel approach for surface defect inspection of golf balls using a reduced set of Zernike moments and a view-to-view mapping. The proposed inspection algorithm can simultaneously detect logo-attached and non-logo assembly defects of different shapes, sizes, and colors in a single view and resolution.
JOURNAL OF THE CHINESE SOCIETY OF MECHANICAL ENGINEERS
(2023)
Article
Urology & Nephrology
Andrea Gallioli, Angelo Territo, Asier Mercade, Matteo Fontana, Romain Boissier, Josep Maria Gaya, Esteban Emiliani, Antoni Sanchez-Puy, Maria Jose Martinez, Joan Palou, Alberto Breda
Summary: This study evaluates the reliability of computerized tomography urography and ureteroscopy in the diagnosis and management of upper tract urothelial carcinoma. Results show a higher detection rate of upper tract urothelial carcinoma with ureteroscopy in cases with positive CT urography, and a lower rate in cases with negative CT urography. Multivariate analysis indicates that filling defect and hydronephrosis are factors associated with ureteroscopy outcomes.
JOURNAL OF UROLOGY
(2021)
Article
Chemistry, Multidisciplinary
Dario Ferreira Sanchez, Johannes Ihli, Damin Zhang, Thomas Rohrbach, Patric Zimmermann, Jinhee Lee, Camelia N. Borca, Natascha Bohlen, Daniel Grolimund, Jeroen A. van Bokhoven, Marco Ranocchiari
Summary: The introduction of structural defects in metal-organic frameworks (MOFs) through the fractional use of defective linkers can refine the properties of existing MOFs. Understanding the structure of defect-engineered MOFs is crucial for targeted property enhancement. Full-field X-ray absorption near-edge structure computed tomography can help visualize the chemical heterogeneity in defect-engineered MOF crystals, revealing non-uniform incorporation of defective linkers within the MOF.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Urology & Nephrology
Rajiv Karani, John M. Sung, Lillian Xie, Raphael B. Arada, Francis A. Jefferson, Egor Parkhomenko, Daniel J. Lama, Sonia Lee, Roozbeh Houshyar, Chandana Lall, Zhamshid Okhunov, Pengbo Jiang, Shlomi Tapiero, Roshan M. Patel, Ralph Clayman, Jaime Landman
Summary: Computerized tomographic urography is the preferred diagnostic tool for evaluating hematuria. A study compared conventional computerized tomography with triple bolus computerized tomography in hematuria patients and found that triple bolus CT significantly reduces radiation exposure while providing equivalent detection of genitourinary pathology.
JOURNAL OF UROLOGY
(2021)
Article
Computer Science, Information Systems
Junjie Dai, Tianpeng Li, Zhaolong Xuan, Zirui Feng
Summary: In this paper, an automated defect analysis system for industrial computerized tomography (ICT) images of solid rocket motor (SRM) grains based on the YOLO-V4 model is proposed. The system can automatically discriminate defect types and measure defect sizes with high accuracy. Comparisons are made with other models, and the results indicate that the proposed system outperforms them in terms of average accuracy and detection time. The system demonstrates its ability to automatically analyze defects in ICT images of SRM grains and has practical application value.
Article
Biochemistry & Molecular Biology
Marten L. Chaillet, Gijs van der Schot, Ilja Gubins, Sander Roet, Remco C. Veltkamp, Friedrich Forster
Summary: Cryo-electron tomography is used to obtain 3D images of macromolecules in cells. Template matching (TM) is commonly used for macromolecule detection, but rotational searches have not been thoroughly investigated due to computational limitations. This study introduces a GPU implementation of TM in PyTOM software, enabling faster and more comprehensive rotation searches beyond the Crowther criterion. The improvements in sensitivity and false-discovery rate are demonstrated using ribosome detection as examples.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Radiology, Nuclear Medicine & Medical Imaging
Mikal Obed, Maria Magdalena Gabriel, Eva Dumann, Clara Vollmer Barbosa, Karin Weissenborn, Bernhard Magnus Wilhelm Schmidt
Summary: This study compared the risk of acute kidney injury (AKI), dialysis, and mortality in patients undergoing contrast-enhanced CT with propensity score-matched controls. The findings showed no increased risk of AKI, dialysis, or mortality after contrast-enhanced CT in patients with an estimated glomerular filtration rate (eGFR) greater than or equal to 45 mL/min/1.73 m(2). However, caution should be exercised in patients with hypertension and an eGFR of less than or equal to 30 mL/min/1.73 m(2).
EUROPEAN RADIOLOGY
(2022)
Article
Computer Science, Artificial Intelligence
Meng Lei, Falei Luo, Xinfeng Zhang, Shanshe Wang, Siwei Ma
Summary: A joint local and nonlocal progressive prediction scheme is proposed to improve prediction accuracy without additional signalling in video coding. Experimental results show significant BD-Rate reduction for both natural sequences and screen content videos.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Zicheng Qi, Peijun Ni, Wei Jiang, Ruolan Wang
Summary: A method for accurately and quantitatively testing small defects inside metal components has been developed by experimentally investigating the grayscale distribution in computerized tomography (CT) images. The method, which is based on wavelet decomposition and the coefficient of variation, shows higher quantitative accuracy compared to traditional methods.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Computer Science, Information Systems
Quanyi Zou, Lu Lu, Zhanyu Yang, Xiaowei Gu, Shaojian Qiu
Summary: The research proposed a novel CPDP method named Joint Feature Representation with Double Marginalized Denoising Autoencoders (DMDA_JFR), which jointly learns global and local feature representations and introduces a repetitious pseudo-labels strategy for progressive distribution matching. Experimental results demonstrate that the proposed method outperformed several baseline CPDP methods.
INFORMATION AND SOFTWARE TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Claudia Schwerz, Benjamin A. Bircher, Alain Kung, Lars Nyborg
Summary: This study aims to detect stochastic defects in laser powder bed fusion (LPBF) parts through in-situ monitoring and X-ray computed tomography (XCT) validation. An in-situ optical tomography (OT) method successfully detected 79% of lack of fusion defects, particularly large ones, in Hastelloy X specimens. This study demonstrates the applicability of in-situ monitoring for indirect detection of stochastic lack of fusion in LPBF.
ADDITIVE MANUFACTURING
(2023)