NH line broadening coefficients and intensities measurement and impurities determination in emerging applications: CCUS, Biomethane and H.

A mid-infrared quantum cascade laser (Mid-IR QCL) coupled with a Single Pass Cell and a Multi Pass Cell, was utilized to measure ammonia (NH) absorption spectroscopic parameters and determine NH impurities toward three emerging applications. We for the first time measured the pressure broadening coefficients perturbed by Air, O, N, He, CO, CH, and H and the line intensities of six NH transition lines near 1084.6 cm.

Interactions in Ammonia and Hydrogen Oxidation Examined in a Flow Reactor and a Shock Tube.

Ammonia (NH) is a promising fuel, because it is carbon-free and easier to store and transport than hydrogen (H). However, an ignition enhancer such as H might be needed for technical applications, because of the rather poor ignition properties of NH. The combustion of pure NH and H has been explored widely.

[The relationship between the variants in 5' upstream core promoter A(-6)G and A(-20)C of angiotensinogen gene and essential hypertension in Kazakans of Xinjiang].

Objective: To investigate whether the variants A(-6)G and A(-20)C of angiotensinogen (AGT) gene are involved in the pathogenesis of essential hypertension in Kazakans.

Methods: T his case control study recruited 125 subjects with hypertension and 74 normotensive subjects from Kazakans of Xinjiang. Genomic DNA from leukocytes was analyzed for genetic variants A(-6)G and A(-20)C in 5' upstream core promoter of AGT gene by polymerase chain reaction (PCR), single strand conformation polymorphism (SSCP), restriction fragment length polymorphism (RFLP) and automatic sequencing.