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A zero-shot attribute-embedded model with a feature difference mapping sigmoid function for compound fault diagnosis of rotating machinery.
ISA Trans
December 2024
State Key Laboratory of Mechanical Transmission for Advanced Equipment, Chongqing University, Chongqing 400044, PR China. Electronic address:
Article Synopsis
- Current methods for detecting machinery compound faults struggle due to the lack of available training data, as collecting sufficient compound fault samples is often impractical in engineering.
- The paper introduces a zero-shot attribute-embedded model (ZSAECFD), which allows for diagnosing unseen compound faults using only single fault data by constructing attribute prototypes and utilizing a new activation function, F-sigmoid.
- The model demonstrates high diagnostic accuracy—81.82% for bearing faults and 88.17% for gear faults—showing its effectiveness compared to traditional methods, even without training on compound fault data.
Trifecta of Tumors: Simultaneous Detection of Three Primary Malignancies by Different Radiotracers of Nuclear Medicine.
World J Nucl Med
December 2024
Department of Nuclear Medicine and PET-CT, Jaslok Hospital and Research Centre, Mumbai, Maharashtra, India.
Malignancies are increasing worldwide with changing lifestyle, pollution, increasing life expectancy, and diagnostic advancements. However, multiple primary malignancies (MPMs) detected simultaneously are very rare. Here, we present a rare case of three primary malignancies (sigmoid colon, prostate, and thyroid) detected simultaneously in a 77-year-old male patient, who initially presented with bleeding per rectum and was then found to have a large pedunculated mass in the sigmoid colon on colonoscopy, which further turned out to be adenocarcinoma.
View Article and Find Full Text PDFAn in vitro experimental study on the synergistic pathogenicity analysis of pulsatile tinnitus involving venous flow velocity, sigmoid sinus wall dehiscence and sinus malformation.
Med Eng Phys
December 2024
Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China; School of Engineering Medicine, Beihang University, Beijing, 100083, China.
Pulsatile tinnitus (PT) is synchronous with patients' heartbeat, with various reported intracranial etiologies. Sigmoid sinus wall dehiscence (SSWD), sinus malformation and high venous flow velocity were common marks of PT and were generally treated as independent etiology in clinic, but their coupling effect remains unclear. This study aimed to investigate the synergistic pathogenicity of these etiologies.
View Article and Find Full Text PDFA lightweight adaptive spatial channel attention efficient net B3 based generative adversarial network approach for MR image reconstruction from under sampled data.
Magn Reson Imaging
December 2024
Dept. of Electronics and Communication Engineering, Puducherry Technological University, Puducherry 605014, India.
Magnetic Resonance Imaging (MRI) stands out as a notable non-invasive method for medical imaging assessments, widely employed in early medical diagnoses due to its exceptional resolution in portraying soft tissue structures. However, the MRI method faces challenges with its inherently slow acquisition process, stemming from the sequential sampling in k-space and limitations in traversal speed due to physiological and hardware constraints. Compressed Sensing in MRI (CS-MRI) accelerates image acquisition by utilizing greatly under-sampled k-space information.
View Article and Find Full Text PDFPotential to reduce margins and Shrink targets in patients with intact cervical cancer treated on An MRI guided radiation therapy (MRgRT) system.
Phys Med
December 2024
Department of Radiation Oncology, University of Miami School of Medicine, Miami, FL, USA; Department of Radiology, University of Miami School of Medicine, Miami, FL, USA. Electronic address:
Introduction: Consensus contouring guidelines for intensity-modulated-radiation-therapy (IMRT) of patients with locally advanced cervix cancer (LACC) advise including the whole uterus in the target volume and adding generous planning-target-volumes (PTVs) to account for motion uncertainties of the gross-tumor-volume (GTV). The primary objective of this analysis was to assess the interfractional GTV motions using a magnetic-resonance-image (MRI) guided-Radiation-Therapy (MRgRT) system to investigate the margins required for MRgRT treatments.
Methods: 125 daily set-up MRIs from five patients with LACC who received MRgRT were analyzed.
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