Influence of alloying elements on temperature interval of transformation and variation of content of epsilon phase;kinetics of epsilon phase formation during continuous cooling;increase of Cr and Ni concentration enha...
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Influence of alloying elements on temperature interval of transformation and variation of content of epsilon phase;kinetics of epsilon phase formation during continuous cooling;increase of Cr and Ni concentration enhances stabilization of austenite;effect of Ni is about 5 times stronger than that of Cr. (see also English translation in Physics of Metals and Metallography v 14 n 6 1962 p 27-31)
In this paper we investigate the quasilinear problem given by the following equation in RN\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{...
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In this paper we investigate the quasilinear problem given by the following equation in RN\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb {R}<^>{N}$$\end{document}-div|x|-ap|del u|p-2 del u+|x|-bp & lowast;V(x)|u|p-2u=|x|-bp & lowast;K(x)f(u).\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\begin{aligned} -\hbox {div}\left( |x|<^>{-ap}|\nabla u|<^>{p-2}\nabla u\right) +|x|<^>{-bp<^>{*}} V(x)|u|<^>{p-2}u = |x|<^>{-bp<^>{*}}K(x)f(u). \end{aligned}$$\end{document}Here, 1
作者：
Chen, RongNanjing Audit Univ
Sch Comp Sci 86 Yushan West RdJiangpu St Nanjing 211815 Jiangsu Peoples R China
Bearing fault detection is becoming more and more important in industrial development, and deep learning image processing technology provides a new solution for this. In this study, ResNet50 is used to replace VGG-16 ...
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Bearing fault detection is becoming more and more important in industrial development, and deep learning image processing technology provides a new solution for this. In this study, ResNet50 is used to replace VGG-16 as the feature extraction network of Faster R-CNN, and feature pyramid network (FPN) and parallel attention module (PAM) are introduced to achieve higher detection accuracy and speed. The experimental validation was conducted with the Case Western Reserve University bearing dataset using a three-fold cross-validation and compared with Yolov5, FPN, and the original Faster R-CNN model. The experimental results show that the accuracy of the proposed bearing image fault detection method is 78.6%, the accuracy is 77.4%, and the recall rate is 76.9%, which can locate and identify bearing faults more accurately. Future work could focus on further optimizing the model structure to enhance detection performance, strengthening the model's generalization ability to meet the detection requirements of different types of bearing faults.
Intrauterine growth restriction (IUGR) affects up to 10% of pregnancies and often results in short- and long-term sequelae for offspring. The mechanisms underlying IUGR are poorly understood, but it is known that heal...
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Intrauterine growth restriction (IUGR) affects up to 10% of pregnancies and often results in short- and long-term sequelae for offspring. The mechanisms underlying IUGR are poorly understood, but it is known that healthy placentation is essential for nutrient provision to fuel fetal growth, and is regulated by immunologic inputs. We hypothesized that in pregnancy, maternal food restriction (FR) resulting in IUGR would decrease the overall immunotolerant milieu in the placenta, leading to increased cellular stress and death. Our specific objectives were to evaluate (1) key cytokines (eg, IL-10) that regulate maternal-fetal tolerance, (2) cellular processes (autophagy and endoplasmic reticulum [ER] stress) that are immunologically mediated and important for cellular survival and functioning, and (3) the resulting IUGR phenotype and placental histopathology in this animal model. After subjecting pregnant mice to mild and moderate FR from gestational day 10 to 19, we collected placentas and embryos at gestational day 19. We examined RNA sequencing data to identify immunologic pathways affected in IUGR-associated placentas and validated messenger RNA expression changes of genes important in cellular integrity. We also evaluated histopathologic changes in vascular and trophoblastic structures as well as protein expression changes in autophagy, ER stress, and apoptosis in the mouse placentas. Several differentially expressed genes were identified in FR compared with control mice, including a considerable subset that regulates immune tolerance, inflammation, and cellular integrity. In summary, maternal FR decreases the anti-inflammatory effect of IL-10 and suppresses placental autophagic and ER stress responses, despite evidence of dysregulated vascular and trophoblast structures leading to IUGR. (C) 2016 Elsevier Inc. All rights reserved.
Purpose - The aim is to present in this paper an effective strategy in dealing with a semi-infinite interval by using a suitable mapping that transforms a semi-infinite interval to a finite interval. Design/methodolog...
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Purpose - The aim is to present in this paper an effective strategy in dealing with a semi-infinite interval by using a suitable mapping that transforms a semi-infinite interval to a finite interval. Design/methodology/approach - The authors introduce a new orthogonal system of rational functions induced by general Jacobi polynomials with the parameters alpha and beta. It is more flexible in applications. In particular, alpha and beta could be regulated, so that the systems are mutually orthogonal in certain weighted Hilbert spaces. Findings - This approach is applied for solving a non-linear system two-point boundary value problem (BVP) on semi-infinite interval, describing the flow and diffusion of chemically reactive species over a nonlinearly stretching sheet immersed in a porous medium. The new approach reduces the solution of a problem to the solution of a system of algebraic equations. Originality/value - The paper presents an effective strategy in dealing with a semi-infinite interval by using a suitable mapping that transforms a semi-infinite interval to a finite interval.
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