One of the main reasons for bridge failure is local scour at abutments. Laboratory experiments, under clear water condition, were carried out to investigate reduction around vertical abutment by adding one upstream spur dike. Sand with a median and standard deviation diameter equal 0.80 mm 2.173 respectively, formed bed material. Three different stages dikes varying sets as: 1) distances from (...

The mechanism of heat extraction from the lower oceanic crust near the ridge axis is poorly constrained despite its importance for understanding both the process of accretion of the plutonic complex and the mass fluxes associated with ridge hydrothermal systems. We have investigated the role of zones of focussed fluid flow in the plutonic complex of the Oman ophiolite in the near-axis cooling o...

This paper shows that a domain-wall description of a two-brane world can be approximated by a non-commutative two-sheeted spacetime under certain assumptions. This link implies a completely model-independent phenomenology which is presently studied. Matter swapping between the two branes (or sheets) is predicted through fermionic oscillations induced by magnetic vector potentials. This phenomen...

Let Ω be a domain in C. We prove the following theorem. If the envelope of holomorphy of Ω is schlicht over Ω, then the envelope is in fact schlicht. We provide examples showing that the conclusion of the theorem does not hold in Cn, n > 2. Additionally, we show that the theorem cannot be generalized to provide information about domains in C whose envelopes are multiply sheeted.

If a class of finitely generated groups G is closed under isometric amalgamations along free subgroups, then every G ∈ G can be quasi-isometrically embedded in a group Ĝ ∈ G that has no proper subgroups of finite index. Every compact, connected, non-positively curved space X admits an isometric embedding into a compact, connected, non-positively curved space X such that X has no non-trivial fin...

This paper describes the implementation of an FBG sensor to measure water levels in a dike. The is based on 3D-printed mechanical transducer through which external pressure converted into longitudinal strain exerted fiber. An additional integrated within measures temperature and used compensate for effects first FBG. By employing aluminum alloy case, suitable operations harsh environments rough...

Every closed orientable manifold can be represented topologically by a generalized Riemann surface consisting of a number of spaces, each with a single point at infinity, which are considered superimposed and which are joined with each other along certain branch cuts of dimensionality one less than that of the manifold. This has been proved by Professor J. W. Alexander, f who also pointed out t...