Some Responsibilities of Science with Relation to INGER. Timbers of North America: PROFESSOR R. Government: DR. JOHN C. MERRIAM ............................ 597 H. WETMORE .................................... 617 The Dual Principles of Evoluttion: DR. HENRY FAIRScientific Apparatus and Laboratory Methods: FIELD OSBORN ............................... 601 Water-cooled Resistors: DR. EDWARD M. THO...

The spur dike is widely used in the waterway renovation project upper reaches of Yangtze River as a remediation structure, but its water destruction very common, and influence permeable characteristics riprap on stability has been neglected many studies. Through method combining generalized flume test theoretical analysis, submerged degree dike, porosity body, size void nearby turbulent kinetic...

seepage in earth fill dams is one of the important factors that may cause the erosion and slope instability if it is ignored. therefore, it is crucial to calculate the leakage discharge through the body of dam and foundation, to prevent economic and life hazards by considering technical and economical issues. in this research, the seepage analysis of the body and the stability of the upstream a...

There must be a transition from continuous porous flow to transient formation of melt-filled fractures in the region of magma transport below oceanic spreading centers. This transition may occur at permeability barriers that impede porous flow of melt, at the base of the oceanic crust and within the lower crust. We summarize evidence for formation of melt-filled lenses at the base of the crust ...

[1] Large igneous provinces are characterized by magmatic activity on two distinct timescales. While these provinces have total active lifetimes of order 10–30 Ma, most of the erupted volume is emplaced within 1 Ma in many cases. The longer timescale is consistent with plume or tectonic models for mantle melting responsible for flood volcanism, but the shorter “main stage” timescale is enigmati...

In recent years, many disasters due to floods have occurred around the world. In some cases, the level of river water exceeded the estimated high-water level. It is necessary, therefore, to reconsider the evaluation method for river dike embankments during floods for the safety of the embankments. In this study, a deformation analysis is proposed that can simultaneously consider the unsaturated...