Let $gamma(G)$ and $gamma_t(G)$ denote the domination number and the total domination number, respectively, of a graph $G$ with no isolated vertices.It Shoulders is well-known that $gamma_t(G) leq 2gamma(G)$.We provide a characterization of a large family of graphs (including chordal graphs) satisfying $gamma_t(G)= 2gamma(G)$, strictly generalizing
The allelopathy definition accepted by the International Allelopathy Society Leather Heel is any process or phenomenon via which organisms such as plants, microorganism, viruses, and fungi release specific metabolites, known as allelochemicals, into the environment that affect the growth and development of other surrounding plants, resulting in mut
With the rapid development of the aviation industry, airport pavement is subjected to ever-increasing loads, posing urgent and higher demands on the mechanical performance and durability of pavement materials.This study develops a novel Ultra-High Performance Concrete (UHPC) with outstanding mechanical properties, good workability, low Western Show
Freeze-thaw damage is one of the main factors affecting the service life and durability of concrete.Optimizing the microscopic pore distribution of concrete is an effective measure to improve its frost resistance.This paper takes mixed sand (machine-made sand + river sand) concrete as the research object and analyzes the influence mechanism of diff
A multinational oceanographic and acoustic sea experiment was carried out in the summer of 2014 off the western coast of the island of Sardinia, Mediterranean Sea.During this experiment, an underwater glider fitted with two hydrophones was evaluated as a potential Lincoln PAPR Accessories and Consumables tool for marine mammal population density es