Pitting Corrosion of Carbon Steel in Chloride-Containing Saturated Ca(OH)2 Solutions

Protection of Metals and Physical Chemistry of Surfaces - Pitting formation in carbon steel in saturated Ca(OH)2 solutions containing different concentrations of added NaCl is studied...     

Photoelectrocatalytic Oxidation of Formic Acid in the Visible Spectral Region on Films of Nanocrystalline Titanium Oxide Doped by Bismuth

Protection of Metals and Physical Chemistry of Surfaces - A method of formation of film coatings of titanium dioxide doped by bismuth ions (Bi3+) is developed on the basis of sol–gel...     

The Effect of Thermal Treatment Modes on the Structure and Corrosion Resistance of Plasma Coatings Made of Alloys Based on Nickel and Iron

Protection of Metals and Physical Chemistry of Surfaces - The structural state and corrosion resistance of the plasma coatings based on iron (FBKh6-2 alloy) and nickel (RW 12496 alloy from Castolin...     

Cleaning of Humidified Gas Media from Benzene Using Active Carbons Modified by Fullerenes

Protection of Metals and Physical Chemistry of Surfaces - Comparison of methods for modification of active carbon by fullerenes with and without a stabilizer is presented. The possibility of...     

Absolute Isotherms of Adsorption of Components of Binary Liquid Solutions of Macro- and Microporous Adsorbents

Protection of Metals and Physical Chemistry of Surfaces - The methods of describing absolute adsorption isotherms of binary nonelectrolyte solutions components on macro- and microporous adsorbents...     

基于单颗磨粒切削的钛合金磨削过程仿真研究

采用有限元分析软件DEFORM的Johnson Cook材料模型,模拟了润滑涂层单颗磨粒磨削TC4合金的加工过程,对磨屑形成过程中磨削区温度、磨削力和切削变形区内应力的变化情况进行了有限元分析。结果表明:切削高温和高内应力主要集中在剪切变形区的刀尖位置;随着一个锯齿状磨屑节块的生长,温度降低、内应力减小。磨削力和磨削温度随磨屑的形成过程呈规律性变化:随着磨削进行,磨削力逐渐增大,磨削温度也相应升高;在锯齿状切屑完整形成时,磨削力最小、磨削温度最低。     

Combining quantitative 2D and 3D image analysis in the serial block face SEM: application to secretory organelles of pancreatic islet cells

A combination of two‐dimensional (2D) and three‐dimensional (3D) analyses of tissue volume ultrastructure acquired by serial block face scanning electron microscopy can greatly shorten the time required to obtain quantitative information from big data sets that contain many billions of voxels. Thus, to analyse the number of organelles of a specific type, or the total volume enclosed by a population of organelles within a cell, it is possible to estimate the number density or volume fraction of that organelle using a stereological approach to analyse randomly selected 2D block face views through the cells, and to combine such estimates with precise measurement of 3D cell volumes by delineating the plasma membrane in successive block face images. The validity of such an approach can be easily tested since the entire 3D tissue volume is available in the serial block face scanning electron microscopy data set. We have applied this hybrid 3D/2D technique to determine the number of secretory granules in the endocrine α and β cells of mouse pancreatic islets of Langerhans, and have been able to estimate the total insulin content of a β cell.