Catalytic combustion of lean methane over different CoO nanoparticle catalysts.

Three types of CoO catalyst, namely CoO nanoparticles (denoted as CoO-NPs, ∼12 nm in diameter), CoO nanoparticles encapsulated in mesoporou s SiO (denoted as CoO@SiO), and CoO nanoparticles inside microporous SiO hollow sub-microspheres (denoted as CoO-in-SiO), were explored to catalyze the combustion of lean methane. It was found that the methane conversion over the three catalysts has the order of CoO-NPs ≈ CoO@SiO > CoO-in-SiO due to the different catalyst structure. The comparison experiments at high temperatures indicate the CoO@SiO has a significantly improved anti-sintering performance.

Risk factors for delayed intracranial hemorrhage secondary to ventriculoperitoneal shunt: A retrospective study.

Background: Delayed intracranial hemorrhage (DICH), a potential complication of ventriculoperitoneal (VP) shunts, has been associated with high mortality, but its risk factors are still unclear.

Aim: To investigate the risk factors of DICH after VP shunts.

Methods: We compared the demographic and clinical characteristics of DICH and non-DICH adult patients with VP shunts between January 2016 and December 2020.

Metal Emulsion-Based Synthesis, Characterization, and Properties of Sn-Based Microsphere Phase Change Materials.

A comparative study of the metal emulsion-based synthesis of Sn-based materials in two different types of molten salts (namely LiCl-KCl-CsCl and LiNO-NaNO-KNO eutectics) is presented, and the properties of Sn, Sn-Cu and Sn-Cu-Zn microsphere phase change materials prepared in chloride salts are evaluated by differential scanning calorimetry (DSC) to understand the effect of element doping. Despite a high ultrasonic power (e.g.

Subdural empyema complicated with intracranial hemorrhage in a postradiotherapy nasopharyngeal carcinoma patient: A case report and review of literature.

The prevalence of nasopharyngeal carcinoma (NPC) is higher in southern China, Hong Kong, and Taiwan than in other areas in the world. Radiotherapy is an important part of treatment for NPC patients, especially those with stage III/IV disease. Subdural empyema is a rare but life-threatening complication in postradiotherapy NPC patients which should be paid more attention.