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1.
IEEE Trans Cybern ; 49(4): 1524-1535, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29994035

RESUMEN

This paper addresses a flexible micro aerial vehicle (MAV) under spatiotemporally varying disturbances, which is composed of a rigid body and two flexible wings. Based on Hamilton's principle, a distributed parameter system coupling in bending and twisting, is modeled. Two iterative learning control (ILC) schemes are designed to suppress the vibrations in bending and twisting, reject the distributed disturbances and regulate the displacement of the rigid body to track a prescribed constant trajectory. At the basis of composite energy function, the boundedness and the learning convergence are proved for the closed-loop MAV system. Simulation results are provided to illustrate the effectiveness of the proposed ILC laws.

2.
Sci Rep ; 8(1): 18071, 2018 12 24.
Artículo en Inglés | MEDLINE | ID: mdl-30584264

RESUMEN

The vertical transmission of HIV, from mother to child remains one of the biggest challenges all over the world. This study evaluated the implementation and effectiveness of the prevention of mother to child HIV transmission (PMTCT) program from 2011 to 2017 in Suzhou. A total of 107 HIV positive women were enrolled in the program, of which 11 were diagnosed through premarital examination, and 96 women were diagnosed through prenatal examination. Among the 96 pregnant women, 67 gave birth to 68 live neonates. Only one infant was diagnosed HIV infected because the HIV positive mother did not enter the PMTCT program until delivery. The HIV prevalence in Suzhou city showed a low-level tendency. To increase the prenatal health utility and antiretroviral medication compliance of the migrant population in Suzhou, there are improvements to make in order to achieve the 90-90-90 targets.


Asunto(s)
Infecciones por VIH/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Servicios Preventivos de Salud , Adulto , China , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Humanos , Recién Nacido , Masculino , Embarazo
3.
IEEE Trans Cybern ; 48(12): 3291-3301, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30047918

RESUMEN

In this paper, we study the control problems of distributed parameter systems, and discuss the limitations of traditional control methods. In recent years, social factors have gradually become an essential parameter of system modeling. For complex distributed parameter systems, the accurate modeling becomes difficult. With the rapid development of the network and the technology of big data and cloud computing, based on the advanced control theory of large-scale computing, we introduce the idea of parallel control to the control of distributed parameter systems. Parallel control is a method to accomplish tasks through the interaction of virtual and actual. Its core is to model the complex distributed parameter system on artificial society or artificial system, then analyze and evaluate it by computational experiment, and finally control and manage the distributed parameter system by parallel execution. Data-driven control and computational control are used in this method, which is a control idea that adapts to the rapid development of society.

4.
J Diabetes Investig ; 7(4): 622-8, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27180921

RESUMEN

AIMS/INTRODUCTION: Homocysteine levels during pregnancy in women with gestational diabetes mellitus (GDM) have been studied; however, it remains unclear whether hyperhomocysteinemia is a useful predictor of insulin resistance. The present study aimed to evaluate the relationship between homocysteine level and GDM. MATERIALS AND METHODS: PubMed, Elsevier, Web of Science and CNKI were searched for relevant studies published up to January 2015. Manual searches of references of the relevant original studies were carried out. Meta-analysis was used to assessed the relationship between homocysteine level and GDM using the stata 12.0 software. RESULTS: Homocysteine levels were significantly elevated in women with GDM compared with those without GDM (weighted mean difference 0.77, 95% confidence interval 0.44-1.10). This evidence was more consistent during the second trimester measurement of homocysteine (weighted mean difference 0.95, 95% confidence interval 0.67-1.23) and for women aged older than 30 years (weighted mean difference 0.90, 95% confidence interval 0.63-1.17). CONCLUSIONS: The present meta-analysis shows that homocysteine level is significantly elevated among women with GDM compared with women with normal glucose tolerance, and this finding persists more during the second trimester.


Asunto(s)
Diabetes Gestacional/sangre , Homocisteína/sangre , Adulto , Femenino , Humanos , Embarazo
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