Coating Process of Oil and Gas Well Pipeline Preventive Repair Materials Inspired by Remora Suckerfish Structure.

To meet the special needs of preventive maintenance for oil and gas well pipelines, this study conducts a geometric dissection of remora suckerfish based on bionics. It combines the biological features with fiberboard tape and uses the discrete element method to construct a particle model of solvent-free, epoxy-reinforced polymer materials, determining relevant parameters. The model accuracy is verified through volumetric density and drop tests, and the optimal parameter combination of the remora-inspired structure is obtained via multi-factor simulation analysis.

Noninvasive Compartmental Pressure Assessment With iCare in Healthy Individuals of Different Ages.

Objective: Acute compartment syndrome is a major orthopedic emergency due to elevated pressure in the closed muscle compartment, and prompt evaluation and fasciotomy are always needed. However, the gold standard indicator of fasciotomy is still under debate. To date, few studies have investigated the variations in compartmental pressure at different locations in people of different ages.

Establishment of fracture blister model and analysis of plasma protein markers in rats.

Purpose: Fracture blister (FB) is a frequent complication in orthopedic surgery. The primary objective of this study was to refine the animal model of FB and to identify plasma protein markers associated with its development and progression.

Methods: In this study, Sprague-Dawley (SD) rats were used as experimental subjects.

Distribution and analysis of subacromial spurs and the relationship with acromial classification and angle in healthy individuals.

Background: Subacromial spurs are considered the one of the pathology underlying shoulder impingement syndrome. Furthermore, few studies have focused on the morphology of the subacromial spurs in normal Chinese people. This study aimed to study the spur distribution and to illustrate the morphology of spurs, which may help guide the extent of acromioplasty.

Synthesis and Thermoreversible Gelation of Coil-Rod Copolymers with a Dendritic Polyethylene Core and Multiple Helical Poly(γ-benzyl-L-glutamate) Arms.

Coil-rod copolymers with a dendritic polyethylene (DPE) core and multiple helical poly(γ-benzyl-L-glutamate) (PBLG) arms (DPE-(PBLG)) were prepared by palladium-catalyzed copolymerization in tandem with ring-opening polymerization (ROP). Macroinitiator (DPE-(NH)) was firstly prepared by the group transformation of DPE-(OH) generated from palladium-catalyzed copolymerization of ethylene and acrylate comonomer. Coil-helical DPE-(PBLG) copolymers were prepared by ROP of γ-benzyl-L-glutamate-N-carboxyanhydride (BLG-NCA).