The modern methods of predicting the fire front spread characteristics during forest fires have significant limitations. main challenge is to adequately describe impact flame length (reaching 10–15 m even surface fires) on intensity, containment and suppression. This research presents a new approach description set physical chemical processes developing when interacts with strip fuel, part whic...

In 1978, Chvátal and Thomassen proved that every 2-edge-connected graph with diameter 2 has an orientation with diameter at most 6. They also gave general bounds on the smallest value f(d) such that every 2-edge-connected graph G with diameter d has an orientation with diameter at most f(d). For d = 3, their general bounds reduce to 8 ≤ f(3) ≤ 24. We improve these bounds to 9 ≤ f(3) ≤ 11.

An analytical model for a condenser with a wetted surface is developed by applying the governing conservations and rate equations and invoking the heat and mass transfer analogy. The heat exchanger is discretized in both the airflow and refrigerant-flow directions for a cross-flow configuration. Axial conduction along the tube walls is neglected and uniform distribution of water is assumed at t...

In Brief Hydration, the absorption of uid into the interstitial areas of a glove once it is wetted, adversely aaects the clinical performance of natural rubber latex gloves. These eeects potentially include increased conductivity, c hanges in tensile and tactile properties, and increased chemical and viral permeability. All of our data indicate that signiicant h ydration is an undesirable prope...

Based on an extended model of Marangoni convection during absorption accompanied by chemical reaction certain characteristics of the process are studied. Thus, the probability of oscillatory modes occurring in the system is analysed, the dimensions of the convective cells are evaluated and the gas-liquid contact time necessary for the instability to appear is determined. The quantitative conclu...