Items 131-140 of 201
Integer Programming Approaches for Solving the Delay Management Problem
The delay management problem deals with reactions in case of delays in public transportation. More specifically, the aim is to decide if connecting vehicles should wait for delayed feeder vehicles or if it is better to ...
(Universitätsverlag Göttingen, 2014)
When Ludwig Prandtl took up the Chair of Applied Mechanics at Göttingen University in 1904, the small university town became the cradle of modern fluid mechanics and aerodynamics. Not only did Prandtl found two research ...
Set covering with almost consecutive ones property
In this paper, we consider set covering problems with a coefficient matrix almost having the consecutive ones property, i.e., in most rows of the coefficient matrix, the ones appear consecutively and only a few blocks of ...
A Model for the Delay Management Problem based on Mixed-Integer-Programming
Dealing with delayed vehicles is a necessary issue in the dispositive work of a public transportation company. If a vehicle arrives at some station with a delay, it has to be decided if the connecting vehicles should wait ...
Fe0-based alloys for Environmental Remediation: Thinking outside the Box
A review of the approach used by environmental remediation researchers to evaluate the reactivity of Fe-0-based alloys reveals the lack of consideration of the results available from other branches of science. This paper ...
On the Validity of Specific Rate Constants (kSA) in Fe0/H2O Systems
The validity of the specific reaction rate constants (k(SA)) in modelling contaminant removal in Fe-0/H2O systems is questioned. It is shown that the current k(SA)-model does not consider the large reactive surface area ...
Comments on "Reductive Immobilization of Uranium(VI) by Amorphous Iron Sulfide"
Filtration of protein aggregates increases the accuracy for diagnosing prion diseases in brain biopsies.
In brain biopsies taken from patients with rapidly progressive dementia, the first differential diagnoses to be ruled out are prion diseases. For safe diagnostic processing of tissue and instruments, a rapid, highly ...
Mechanism of Uranium Removal from the Aqueous Solution by Elemental Iron
The effectiveness of elemental iron (Fe0) to remove uranium (U) from the aqueous phase has been demonstrated. While the mitigation effect is sure, discrepancies in the removal mechanism have been reported. The objective ...
Enhancing sustainability of household water filters by mixing metallic iron with porous materials
This study conceptually discusses the feasibility of enhancing the sustainability of conventional iron/sand filter (Fe0/sand filter) for safe drinking water by partially or totally substituting sand (quartz) by porous ...