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Updated: May 5, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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交流变压器:用于任意图像曝光校正的统一变压器

Chao Li1, Yuchen Yang1, Qiujia He1

  • 1School of Statistics and Data Science, Nankai University, Tianjin, 300071, China.

Neural networks : the official journal of the International Neural Network Society
|January 24, 2025
PubMed
概括

这项研究将单图像曝光校正 (SEC) 和多图像曝光融合 (MEF) 统一为任意曝光校正 (AF-EC). 建议的ACformer模型有效地处理任何数量的输入,提高SEC和MEF任务的性能.

关键词:
任意框架的风险调整.多次曝光的图像融合是多次曝光的.专注于自己的注意力单一图像曝光校正的一种方法.

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A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
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Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
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Source Transformation for AC Circuits

The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.
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Equivalent Circuits for Practical Transformers01:28

Equivalent Circuits for Practical Transformers

The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
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Transformers with Off-Nominal Turns Ratios

In scenarios involving parallel transformers with disparate ratings, developing per-unit models requires accommodating off-nominal turns ratios. This situation arises when the selected base voltages are not proportional to the transformer’s voltage ratings. Consider a transformer where the rated voltages are related by the term a. If the chosen voltage bases satisfy a relationship involving term b, term c is defined as the ratio of these bases. This ratio is then substituted into the...
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