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Hot workability and microstructure evolution of Al–0.2Sc–0.04Zr alloy

Hot deformation behavior of Al–0.2Sc–0.04Zr (wt.%) aluminum alloy was investigated via conducting hot compression tests at temperatures of 440–600 °C and at strain rates, ranging from 0.001 to 5 s−1, at an interval of an order of magnitude. The characteristics of the true stress–strains acquired in the hot compression tests were investigated, and the influence of processing...

Discovery and validation of DNA methylation markers for overall survival prognosis in patients with thymic epithelial tumors

BackgroundThe current prognosis of thymic epithelial tumors (TETs) is according to the World Health Organization (WHO) histologic classification and the Masaoka staging system. These methods of prognosis have certain limitations in clinical application and there is a need to seek new method for determining the prognosis of patients with TETs. To date, there have been no studies...

Performance Analysis of Ten Common QRS Detectors on Different ECG Application Cases

A systematical evaluation work was performed on ten widely used and high-efficient QRS detection algorithms in this study, aiming at verifying their performances and usefulness in different application situations. Four experiments were carried on six internationally recognized databases. Firstly, in the test of high-quality ECG database versus low-quality ECG database, for high...

Tissue pH and gut ecomorphology in six freshwater teleosts occupying different trophic levels

This study investigated the gastrointestinal (GI) tract, blood, and muscle pH, and explored the characteristic of gut morphology (relative gut length) associated with trophic level in 6 freshwater teleosts. The results showed that GI pH differences among species and significant differences occurred in GI segments (P < 0.05). The lowest pH values were observed in the stomach of 2...

Homocysteine Induces Apoptosis of Human Umbilical Vein Endothelial Cells via Mitochondrial Dysfunction and Endoplasmic Reticulum Stress

Copyright © 2017 Zhimin Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium

Homocysteine Induces Apoptosis of Human Umbilical Vein Endothelial Cells via Mitochondrial Dysfunction and Endoplasmic Reticulum Stress

Copyright © 2017 Zhimin Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium

Genistein promotes ionizing radiation-induced cell death by reducing cytoplasmic Bcl-xL levels in non-small cell lung cancer

Genistein (GEN) has been previously reported to enhance the radiosensitivity of cancer cells; however, the detailed mechanisms remain unclear. Here, we report that GEN treatment inhibits the cytoplasmic distribution of Bcl-xL and increases nuclear Bcl-xL in non-small cell lung cancer (NSCLC). Interestingly, our in vitro data show that ionizing radiation IR treatment significantly...

On a discrete risk model with delayed claims and a randomized dividend strategy

In this paper, we consider a discrete risk model with delayed claims and randomized dividend strategy. The expected discounted dividends before ruin are studied. Difference equations for the expected discounted dividends are derived and solved.

On a generalized Gerber-Shiu function in a compound Poisson model perturbed by diffusion

Chaolin Liu 0 Zhimin Zhang 0 0 College of Mathematics and Statistics, Chongqing University , Chongqing , China In the spirit of a publication by Cheung in 2013 we study generalized Gerber-Shiu

Almost Periodic Solution of a Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response

Received 5 April 2013; Revised 8 July 2013; Accepted 11 July 2013 Academic Editor: Mingxin Wang Copyright © 2013 Zhimin Zhang. This is an open access article distributed under the Creative Commons

Almost Periodic Solution of a Modified Leslie-Gower Predator-Prey Model with Beddington-DeAngelis Functional Response

Received 5 April 2013; Revised 8 July 2013; Accepted 11 July 2013 Academic Editor: Mingxin Wang Copyright © 2013 Zhimin Zhang. This is an open access article distributed under the Creative Commons

A Note on a Generalized Discounted Penalty Function in a Sparre Andersen Risk Model Perturbed by Diffusion

, Chongqing 401331, China Received 17 September 2013; Accepted 6 November 2013 Academic Editor: Bernhard Ruf Copyright © 2013 Chaolin Liu and Zhimin Zhang. This is an open access article distributed under

Formation of Ultrafine-Grained Ti3Al on a Ti48Al2Cr2Nb Intermetallic Alloy Induced by Pulsed Electron Beam Treatment

The microstructure modifications, phase, and texture formations encountered in a TiAl based Ti48Al2Cr2Nb intermetallic alloy induced by the high current pulsed electron beam (HCPEB) treatment were carefully investigated using scanning electron microscope (SEM), X-ray diffraction (XRD), and electron backscattered diffraction (EBSD) techniques. The initial material contains the...

Surface Nanostructure Formations in an AISI 316L Stainless Steel Induced by Pulsed Electron Beam Treatment

High current pulsed electron beam (HCPEB) is an efficient technique for surface modifications of metallic materials. In the present work, the formations of surface nanostructures in an AISI 316L stainless steel induced by direct HCPEB treatment and HCPEB alloying have been investigated. After HCPEB Ti alloying, the sample surface contained a mixture of the ferrite and austenite...

Formation of Ultrafine-Grained Ti3Al on a Ti48Al2Cr2Nb Intermetallic Alloy Induced by Pulsed Electron Beam Treatment

The microstructure modifications, phase, and texture formations encountered in a TiAl based Ti48Al2Cr2Nb intermetallic alloy induced by the high current pulsed electron beam (HCPEB) treatment were carefully investigated using scanning electron microscope (SEM), X-ray diffraction (XRD), and electron backscattered diffraction (EBSD) techniques. The initial material contains the...

How to decide intervention thresholds based on FRAX in central south Chinese postmenopausal women

The FRAX tool has been used to determine possible thresholds for therapeutic intervention; however, there are no FRAX-based intervention thresholds available for China, we proposed that the 10-year probability of major osteoporotic fracture and hip fracture of about 4.0 and 1.3 %, respectively, may be acceptable intervention thresholds for central south Chinese postmenopausal women.

Classification of Green and Black Teas by PCA and SVM Analysis of Cyclic Voltammetric Signals from Metallic Oxide-Modified Electrode

Nian Liu Yizeng Liang Jun Bin Zhimin Zhang Jianhua Huang RuXin Shu Kai Yang Forty-three samples of green and black teas were analyzed by an electronic tongue technique. A class of metallic oxide ... no conflict of interest. Yizeng Liang declares that he has no conflict of interest. Jun Bin declares that he has no conflict of interest. Zhimin Zhang declares that he has no conflict of interest

One-Carbon Metabolic Factors and Risk of Renal Cell Cancer: A Meta-Analysis

Background Nutrients related to one-carbon metabolism were previously shown to be significantly associated with the risk of cancer. The aim of this meta-analysis was to evaluate potential relationships between one-carbon metabolic factors and renal cell cancer (RCC) risk. Methods PubMed, EMBASE, and Cochrane Library databases were searched through March 2015 for observational...