Results 1 to 10 of about 35,279,994 (212)
Power Train System Control of Electric Loader Based on Positive Flow System
Applied Sciences, 2022 Energy conservation and emission reduction have drawn more and more attention in the world. Loaders are widely used in various earthworks. However, traditional loaders with high energy consumption and poor emission cannot meet the needs of sustainable ...
Qihuai Chen +3 more
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Nature Communications, 2021 Though consistently shown to detect mammographically occult cancers, breast ultrasound has been noted to have high false-positive rates. In this work, we present an AI system that achieves radiologist-level accuracy in identifying breast cancer in ...
Yiqiu Shen +28 more
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Differentially Positive Systems [PDF]
IEEE Transactions on Automatic Control, 2015 The paper introduces and studies differentially positive systems, that is, systems whose linearization along an arbitrary trajectory is positive. A generalization of Perron Frobenius theory is developed in this differential framework to show that the property induces a (conal) order that strongly constrains the asymptotic behavior of solutions.
Fulvio Forni, Rodolphe Sepulchre
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Positive observers for semilinear positive systems
IMA Journal of Mathematical Control and Information, 2022 Abstract The problem of designing a positive Luenberger observer for a class of infinite-dimensional semilinear positive systems is addressed. The proposed observer is positive. That is, it ensures that the state estimates are non-negative at any time. The positive observer is designed based on positive bounded perturbation results.
Abdellaziz Binid +2 more
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Input-to-State Stability Analysis of Subhomogeneous Cooperative Systems
IEEE Access, 2020 This paper analyzes the input-to-state stability (ISS) properties of subhomogeneous cooperative systems for the first time. A new definition of finite-time ISS (FISS) for nonlinear positive systems is given.
Yan Zhao, Fanwei Meng
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Construction Methods of the Nearest Positive System
IEEE Control Systems Letters, 2020 Positive systems can be used as mathematical models for many practical systems, such as biological systems, communication networks, and interconnected systems.
Kazuhiro Sato, Akiko Takeda
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Problem-based numbered head together learning approach for a successful teaching strategy
JINOP (Jurnal Inovasi Pembelajaran), 2022 The study aims to investigate the potential of the Numbered Head Together (NHT) model for improving the learning engagement of elementary students in Indonesia.
Bayu Rima Aditya +2 more
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Frontiers in Psychology, 2021 Introduction: Valid and reliable instruments are crucial for measuring perceived social support among people living with HIV (PLHIV). We aimed to investigate the psychometric properties of the English version of the 19-item Medical Outcomes Study Social ...
Feifei Huang +7 more
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Adaptation and validation of a culturally adapted HIV stigma scale in Myanmar
BMC Public Health, 2021 Background HIV stigma is a common barrier to HIV prevention, testing, and treatment adherence, especially for low- and middle-income countries such as Myanmar. However, there was no validated Myanmar version of a stigma scale.
Feifei Huang +7 more
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Stability Tests of Positive Fractional Continuous-time Linear Systems with Delays [PDF]
TransNav, 2013 Necessary and sufficient conditions for the asymptotic stability of positive fractional continuous-time linear systems with many delays are established.
Tadeusz Kaczorek
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