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Energy Losses in Transformers01:21

Energy Losses in Transformers

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In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
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Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
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Transformers with Off-Nominal Turns Ratios01:25

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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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Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
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Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
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Types Of Transformers01:16

Types Of Transformers

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Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
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Updated: Jul 14, 2025

Author Spotlight: Addressing Technical and Subjective Challenges in Measuring Classroom Attention
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A transformer-based deep learning framework to predict employee attrition.

Wenhui Li1

  • 1School of Information Science and Engineering, Shandong Normal University, Shandong, China.

Peerj. Computer Science
|October 9, 2023
PubMed
Summary
This summary is machine-generated.

Predicting employee attrition using advanced Transformer neural networks significantly improves accuracy and reduces business costs. This data-driven approach enhances strategic decision-making by providing reliable employee turnover insights.

Keywords:
Artificial intelligenceAttrition predictionData scienceDeep learningMachine learning

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Area of Science:

  • Business Analytics
  • Artificial Intelligence
  • Machine Learning

Background:

  • Employee attrition negatively impacts business profit management.
  • Predictive modeling offers a solution to mitigate costs associated with employee turnover.
  • Existing models lack real-world evaluation and integration into decision support systems.

Purpose of the Study:

  • To evaluate Transformer-based neural networks for employee attrition prediction.
  • To assess the integration of predictive models into business decision support systems.
  • To determine the impact of accurate attrition prediction on strategic business decisions.

Main Methods:

  • Implementation of a Transformer-based neural network model.
  • Utilizing contextual embeddings for adaptation to tabular data.
  • Application to the IBM HR Employee Attrition dataset.

Main Results:

  • The Transformer model demonstrated significantly improved prediction efficiency over state-of-the-art models.
  • The study validated the effectiveness of the proposed computational technique.
  • Deep learning, especially Transformer networks, shows promise for tabular and unbalanced data.

Conclusions:

  • Transformer-based neural networks are highly effective for predicting employee attrition.
  • These models can be integrated into decision support systems for strategic business planning.
  • Deep learning offers a powerful approach for analyzing complex, real-world business data.