In this paper, the adaptability characteristics of packer to three types common clastic rock reservoirs (mudstone, shale, sandstone) are analyzed systematically. Moreover, identification and structural design in hydraulic fracturing systematically conducted based on finite element calculation. Finally, nonlinear mathematical models packing safety factor pressure under conditions casing, mudston...

Dielectric elastomer actuators (DEAs) are one of the emerging areas investigation in smart research and have attracted considerable interests due to their wide-ranging applications, for instance automation soft robotic components. Commonly utilized dielectric elastomers (DEs) such as nitrile butadiene rubber (NBR) its hydrogenated carboxylated derivatives along with fillers (titanium oxide, bar...

The major hindrance for any production industry in obtaining higher yield is the lack of achieving full material removal rate machine tools. If achieved, surface quality machined works will be compromised. An attempt was made this work to reduce compromise finish by integrating a plastic compliant damper that capable reducing effects unwanted vibrations generated during machining process. desig...

Rubber material generally behaves as an electrical insulator, but vapor-grown carbon fiber (VGCF) is known for its electrical conductivity. Thus, we compounded styrene-butadiene rubber and carbon nanofiber (VGCF), and studied the relationship between strain and the DC electrical resistivity of vulcanized rubber filled with carbon nanofiber. No change of hardness was observed in hardness tests. ...

Considering the literature for aqueous rechargeable Zn//MnO2 batteries with acidic electrolytes using doctor blade coating of active material (AM), carbon black (CB), and binder polymer (BP) positive electrode fabrication, different types (non-)aqueous solvents were introduced so far. Furthermore, in most cases, relatively high passive (CB+BP) shares ~30 wt% applied. The first part this work fo...

MATERIALS AND METHODS: Using open-source CAD modeling software, we developed a customizable prosthetic eye model. The eye can be customized within the following parameters: shape, height, length, width, thickness, concavity, iris diameter, and pupil diameter. The customization process is user friendly, requiring numeric inputs or parametric adjustments. The final model is exported and processed...

It is mainly the bulk properties of latex and ink oil that contribute to the observable differences in the ink setting dynamics rather than surface chemical wetting differences or changes in porous structure related to the inclusion of latex. It can be generalised that low latex solubility parameter (butadiene < styrene = acrylate < acrylonitrile) leads to greater oil interaction. Furthermore, ...