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18 papers found.
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Modeling of Complex Life Cycle Prediction Based on Cell Division

Effective fault diagnosis and reasonable life expectancy are of great significance and practical engineering value for the safety, reliability, and maintenance cost of equipment and working environment. At present, the life prediction methods of the equipment are equipment life prediction based on condition monitoring, combined forecasting model, and driven data. Most of them...

Numerical Study of an Efficient Solar Absorber Consisting of Metal Nanoparticles

We propose and theoretically investigate an efficient solar light absorber based on a multilayer structure consisting of tungsten nanoparticle layers and SiO2 layers. According to our calculation, average absorbance over 94% is achieved in the wavelength range between 400 and 2500 nm for the proposed absorber. The excellent performance of the absorber can be attributed to the...

Necklace-like NiO-CuO Heterogeneous Composite Hollow Nanostructure: Preparation, Formation Mechanism and Structure Control

Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031, P. R. ChinaShao Hui Xu, Guang Tao Fei, Hao Miao Ouyang, Guo Liang Shang, Xu Dong Gao & Li De Zhang ... Li De Zhang in:Nature Research journals • PubMed • Google Scholar Contributions G.T.F. and S.H.X. designed the experiments. S.H.X., G.T.F. and H.M.O. analysed data. G.T.F., S.H.X., H.M.O., S.G.L

A Maladaptive Role for EP4 Receptors in Mouse Mesangial Cells

Yi-de Zhang 0 Jian-hua Wu 0 Thomas H. Thatcher, University of Rochester Medical Center, United States of America 0 1 Department of Nephrology, Affiliated Hospital of Nantong university , Nantong

Increased expression of microRNA-335 predicts a favorable prognosis in primary gallbladder carcinoma

Increased expression of microRNA-335 predicts a favorable prognosis in primary gallbladder carcinoma Hong-hua Peng,1 Yang-de Zhang,2 Lian-sheng Gong,2 Wei-dong Liu,2 Yang Zhang2 1Department of

Identification of latent tuberculosis infection-related microRNAs in human U937 macrophages expressing Mycobacterium tuberculosis Hsp16.3

Background Latent tuberculosis infection (LTBI) relies on a homeostasis of macrophages and Mycobacterium tuberculosis (Mtb). The small heat shock protein, Mtb Hsp16.3 (also known as latency-associated antigen), plays an important role in Mtb persistence within macrophages. However, the mechanism of LTBI remains elusive. The aim of this study was to delineate LTBI-related miRNA...

Fano resonance in anodic aluminum oxide based photonic crystals

• PubMed • Google ScholarSearch for Shao Hui Xu in:Nature Research journals • PubMed • Google ScholarSearch for Hao Miao Ouyang in:Nature Research journals • PubMed • Google ScholarSearch for Li De Zhang

Green tea consumption and risk of esophageal cancer: a meta-analysis of epidemiologic studies

Background Green tea has shown the role of chemoprevention for cancer. Recently, several studies suggested that green tea intake may have effect on esophageal cancer risk, whereas the results were inconsistent. Methods We performed a meta-analysis of all English and Chinese language studies of green tea consumption and esophageal cancer risk indexed in Medline, Embase, the...

Carbon Nanotubes as Active Components for Gas Sensors

, 381 Wushan Road, Guangzhou 510640, China Received 24 December 2008; Revised 30 March 2009; Accepted 13 April 2009 Academic Editor: Michele Penza Copyright © 2009 Wei-De Zhang and Wen-Hui Zhang

Carbon Nanotubes as Active Components for Gas Sensors

, 381 Wushan Road, Guangzhou 510640, China Received 24 December 2008; Revised 30 March 2009; Accepted 13 April 2009 Academic Editor: Michele Penza Copyright © 2009 Wei-De Zhang and Wen-Hui Zhang

Porous-ZnO-Nanobelt Film as Recyclable Photocatalysts with Enhanced Photocatalytic Activity

In this article, the porous-ZnO-nanobelt film was synthesized by oxidizing the ZnSe-nanobelt film in air. The experiment results show that the porous-ZnO-nanobelt film possesses enhanced photocatalytic activity compared with the ZnO-nanobelt film, and can be used as recyclable photocatalysts. The enhanced photocatalytic activity of the porous-ZnO-nanobelt film is attributed to...

The relationship between obesity and diabetic nephropathy in China

Background The epidemic of diabetic nephropathy (DN) has been paralleled by rapid increases in both obesity and diabetes in China. The aim of this study was to investigate the natural history of DN and the association of obesity and renal function with diabetes. Methods In total, 264 patients with renal biopsy-confirmed DN were examined from 2002 to 2008 and followed up to June...

A New Conservative Difference Scheme for the General Rosenau-RLW Equation

A new conservative finite difference scheme is presented for an initial-boundary value problem of the general Rosenau-RLW equation. Existence of its difference solutions are proved by Brouwer fixed point theorem. It is proved by the discrete energy method that the scheme is uniquely solvable, unconditionally stable, and second-order convergent. Numerical examples show the...

Synthesis of ZnGa2O4 Hierarchical Nanostructure by Au Catalysts Induced Thermal Evaporation

In this paper, ZnGa2O4 hierarchical nanostructures with comb-like morphology are fabricated by a simple two-step chemical vapor deposition (CVD) method: first, the Ga2O3 nanowires were synthesized and employed as templates for the growth of ZnGa2O4 nanocombs; then, the as-prepared Ga2O3 nanowires were reacted with ZnO vapor to form ZnGa2O4 nanocombs. Before the reaction, the Au...

Artesunate induces oncosis-like cell death in vitro and has antitumor activity against pancreatic cancer xenografts in vivo

Pancreatic cancer is highly resistant to the currently available chemotherapeutic agents. Less than 5% of patients diagnosed with this disease could survive beyond 5 years. Thus, there is an urgent need for the development of novel, efficacious drugs that can treat pancreatic cancer. Herein we report the identification of artesunate (ART), a derivative of artemisinin, as a potent...

Application of Hyperbranched Rolling Circle Amplification for Direct Detection of Mycobacterium Tuberculosis in Clinical Sputum Specimens

Background Global tuberculosis (TB) control is encumbered by the lack of a rapid and simple detection method for diagnosis, especially in low-resource areas. An isothermal amplification method, hyperbranched rolling circle amplification (HRCA), was optimized to detect Mycobacterium tuberculosis (Mtb) in clinical sputum specimens. Methods A clinical validation study was performed...

Modulation of Transmission Spectra of Anodized Alumina Membrane Distributed Bragg Reflector by Controlling Anodization Temperature

We have successfully prepared anodized alumina membrane distributed Bragg reflector (DBR) using electrochemical anodization method. The transmission peak of this distributed Bragg reflector could be easily and effectively modulated to cover almost any wavelength range of the whole visible spectrum by adjusting anodization temperature.

A Simple Method to Synthesize Cadmium Hydroxide Nanobelts

Cd(OH)2nanobelts have been synthesized in high yield by a convenient polyol method for the first time. XRD, XPS, FESEM, and TEM were used to characterize the product, which revealed that the product consisted of belt-like crystals about 40 nm in thickness and length up to several hundreds of micrometers. Studies found that the viscosity of the solvent has important influence on...