Effect of porous density of twisted tape inserts on heat transfer performance inside a closed conduit.

This study examines the impact of varying the porosity density of twisted tape inserts (TTI) on the temperature distribution, fluid velocities, heat transfer coefficients (HTC), Nusselt numbers (), turbulent kinetic energy (TKE), and performance from 5000 to 12500 Reynolds numbers (). The entire process involved the design of TTIs and double pipe heat exchangers using SolidWorks. Subsequently, a three-dimensional fluid flow model was employed to solve equations related to energy mass, energy, and momentum within the ANSYS Fluent interfaces.

Surgical management of craniocervical junction tuberculosis with atlanto-axial dislocation - A case report and review of the literature.

Background: There are few guidelines on how to best manage craniovertebral junction (CVJ) tuberculosis (TB). Certainly, timely tissue diagnosis, immobilization of the neck, and decompression of CVJ with appropriate stabilization are the mainstays of treatment for TB at the CVJ.

Case Description: Three patients, ages 16-68, presented with CVJ TB with atlanto-axial dislocation responsible for progressive quadriparesis/plegia.

Recent Advances in Deep Eutectic Solvents as Shale Swelling Inhibitors: A Comprehensive Review.

Inhibitors have evolved from their primary function of controlling swelling during hydraulic fracturing processes in shale reservoirs. This study provides a comprehensive review of recent deep eutectic solvent (DES) advancements as inhibitors in swelling inhibition techniques. The swelling inhibitory potentials and mechanisms of DESs have been studied analytically and compared to existing conventional inhibitors.

Modified Wheeler Technique with Inferior Lid Retractor Plication for Senile Entropion.

Introduction: The study aimed to assess the outcome of the modified wheeler technique with lower eyelid retractor plication for the correction of Involutional (senile) entropion among the study patients Materials and methods: A retrospective case series study was conducted in two tertiary eye hospitals of Bangladesh from 1 July to 31 December, 2020. This study included all patients undergoing modified wheeler technique with inferior lid retractor plication and followed up to at least one year and six months between 01 January 2015 to 31 December, 2019. All patients were suffering from senile entropion of the lower eyelid.

A hybrid multi objective cellular spotted hyena optimizer for wellbore trajectory optimization.

Cost and safety are critical factors in the oil and gas industry for optimizing wellbore trajectory, which is a constrained and nonlinear optimization problem. In this work, the wellbore trajectory is optimized using the true measured depth, well profile energy, and torque. Numerous metaheuristic algorithms were employed to optimize these objectives by tuning 17 constrained variables, with notable drawbacks including decreased exploitation/exploration capability, local optima trapping, non-uniform distribution of non-dominated solutions, and inability to track isolated minima.

Experimental and COSMO-RS Simulation Studies on the Effects of Polyatomic Anions on Clay Swelling.

Ionic liquids (ILs) can play a vital role in clay swelling inhibition during hydraulic fracturing. Previous studies highlighted the effect of side-chain length attached to the cationic core and different anions possessing almost the same chemical properties on inhibition performance. However, polyatomic anions have the potential to superiorly inhibit swelling compared to monoatomic anions.