Numerical simulation of heat transfer properties of large-sized biomass particles during pyrolysis process.

During the pyrolysis process of large particles, the conduction between particles cannot be ignored. In the present work, a numerical simulation model for the pyrolysis of biomass particles was established, which takes into account the conduction within the particles. Based on this model, the temperature distribution inside the particle during the pyrolysis process was determined and the effects of particle size, moisture content, and gas velocity on heat transfer characteristics were analyzed.

[Preventive effect of trans-resveratrol on hypertension-induced cardiac hypertrophy in partially nephrectomized rats].

Objective: To investigate the effect of trans-resveratrol on hypertension-induced cardiac hypertrophy and its potential mechanisms involving endothelin (ET), angiotensin II (AngII) and nitric oxide (NO).

Methods: Animal models bearing cardiac hypertrophy were replicated in male SD rats following partially nephrectomy (PNX). 10 mg/kg bw or 50 mg/kg bw of resveratrol was administered to rats by gavage, respectively, for 4 weeks.