Web21 de jan. de 2024 · We introduce and investigate a new topological index, the Lanzhou index, and show that it outperforms several existing indices on some benchmark datasets recommended by the International... WebAccording to the 2024 WHO database, [24] of 2700 towns listed, Lanzhou has the 158th highest level of PM 2.5 pollution, with an average of 54 micrograms per cubic meter (twice that of Milan). The large particle …
Universidad de Lanzhou - Wikipedia, la enciclopedia libre
Web20 de set. de 2024 · Lanzhou index Lz(G) can be expressed as (n − 1)M1(G) − F (G), where M1(G) and F (G) denote the first Zagreb index and the forgotten index of G respectively, and n is the number of vertices in G. It turns out that Lanzhou index outperforms M1(G) and F(G) in predicting the logarithm of the octanol-water partition … Web1 de jan. de 2024 · Let G be a simple graph with vertex set V (G). The Lanzhou index of G is defined as Lz(G) = u∈V (G) d G (u)dG(u) 2 , where dG(u) denotes the degree of the … portsmouth nh florist 03801
(PDF) ON THE LANZHOU INDEX OF GRAPHS - ResearchGate
Web17 de jan. de 2024 · Journal of Applied Mathematics and Computing - The max–min rodeg ( $${M\!m_{sde}}$$ ) index is a useful topological index in mathematical chemistry. ... Unicyclic graphs with extremal Lanzhou index. 20 September 2024. Qian-qian Liu, Qiu-li Li & He-ping Zhang. Extremal values of the Sombor index in unicyclic and bicyclic graphs. WebLanzhou Nuclear Fuel Complex. 504 Plant. 36°09' N 103°29' E. In July 1955 the USSR agreed to construct atomic reactors in Lanzhou and Baotou, which were to be completed in 1960 [no reactor was built in Lanzhou]. Construction of this gaseous diffusion plant probably began in 1957, and the facility was estimated to be producing weapons grade U ... Web26 de ago. de 2024 · In 2024, Dehgardi and Liu characterized trees with fixed maximum degree using the Lanzhou Index. We can easily calculate F-coindex, using formula given by equation , for some well-known graphs. Let ,,, and be the path, cycle, star, and complete graphs on vertices. Then, F-coindex for these graphs is as follows: (1). (2). (3 ... or8lzfy9ms7