The problem of gauging a closed form is considered. When the target manifold is a simple Lie group G, it is seen that there is no obstruction to the gauging of a subgroup H ⊂ G if we may construct from the form a cocycle for the relative Lie algebra cohomology (or for the equivariant cohomology), and a general expression for these cocycles is given. Their formal similarity with the expressions ...

Introduction Stream gauging by salt injection is a technique that will work in many streams in which current-meter measurements are unreliable. This extension note builds upon a previous Streamline article (Moore 2004b) and describes field and computational procedures for stream gauging by constant-rate salt injection. The emphasis is on small streams (less than about 2 m in wetted width) under...

Abstract Discharge measurement is the base of proper water management. The effective design and operation hydraulic structures under both normal extreme flow conditions depend on quality hydrological data. Understanding system requires consistent long-term measurement. Despite that, gauging station network sparse, its numbers are declining worldwide. This article aims to draw attention possibil...

This paper studies the possibility of using WaTEM/SEDEM model to assess sediment yield from catchment area within Lena River catchment. The study was carried out based on a comparison predicted data and measured suspended at gauging stations state monitoring network Russia. performed two areas, with plain mountainous relief. first site is located river Chara an 4150 km2. second rests between Ta...

There is currently no widely accepted standard method to determine whether gerrymandering has occurred. To a cutoff for unreasonable gerrymandering, simulating collections of districting plans in the absence partisan bias been proposed. In simulation-based methods, real-world election outcomes are compared results from simulated plans. Here, simulation that creates possible districts continuous...

We review recent progress in the gauging of maximal supergravity theories.

We address the problem of coupling non-Hermitian systems, treated as fundamental rather than effective theories, to the electromagnetic field. In such theories the observables are not the x and p appearing in the Hamiltonian, but quantities X and P constructed by means of the metric operator. Following the analogous procedure of gauging a global symmetry in Hermitian quantum mechanics we find t...