Sanitary Engineering Degrees Given in 1954

Medical Research and Sanitary Engineering

Doctoral Program in Sanitary - Environmental Engineering

Introduction “Although many people are concerned about the status of the environment, environmental engineers are the technical professionals who provide safe drinking water, treat and properly dispose of wastes, maintain air quality, control water pollution, and remediate sites contaminated due to spills of improper disposal of hazardous substances. They monitor the quality of the air, water, ...

Counting loopy graphs with given degrees

Let d = (d1, d2, . . . , dn) be a vector of nonnegative integers. We study the number of symmetric 0-1 matrices whose row sum vector equals d. While previous work has focussed on the case of zero diagonal, we allow diagonal entries to equal 1. Specifically, for D ∈ {1, 2} we define the set GD(d) of all n × n symmetric 0-1 matrices with row sums given by d, where each diagonal entry is multiplie...

Editing to a Graph of Given Degrees

We consider the Editing to a Graph of Given Degrees problem that asks for a graph G, non-negative integers d, k and a function δ : V (G) → {1, . . . , d}, whether it is possible to obtain a graph G from G such that the degree of v is δ(v) for any vertex v by at most k vertex or edge deletions or edge additions. We construct an FPT-algorithm for Editing to a Graph of Given Degrees parameterized ...

On Percolation in Random Graphs with given Vertex Degrees

We study the random graph obtained by random deletion of vertices or edges from a random graph with given vertex degrees. A simple trick of exploding vertices instead of deleting them, enables us to derive results from known results for random graphs with given vertex degrees. This is used to study existence of giant component and existence of k-core. As a variation of the latter, we study also...