Fiiiiiiiiiiiilllllllmmmmm Review: Hele ng Hiwagang Hapis

Imperfect Hele - Shaw cells

2014 The covering surfaces of a Hele-Shaw cell may be roughened mechanically, or modified by random chemical patches which change the wetting properties. We discuss first the quasi-static injection of a single fluid (with a finite contact angle 03B8e) in an imperfect cell. The shape of the injected region depends critically on a dimensionless number i (ratio of the boundary energy 03C4 over the...

Dynamic NG-path Relaxation

In [1] we introduced a new state-space relaxation, called ng-path relaxation, to compute lower bounds to routing problems, such as the Capacitated Vehicle Routing Problem (CVRP) and the VRP with Time Windows (VRPTW). This relaxation consists of partitioning the set of all possible paths ending at a generic vertex according to a mapping function that associates with each path a subset of the vis...

Ng - zo 6 8

An Instrumented task board has been developed at NASA Marshall Space Flight Center (MSFC). An overview of the task board design, and current development status is presented. The task board was originally developed to evaluate operator performance using the Protoflight Manipulator Arm (PFMA) at MSFC. The task board evaluates tasks for Orbital Replacement Unit (ORU), fluid connect and transfers, ...

Troubleshoo ng Rubber Problems

Blu¢ng Beyond Poker

This paper introduces a model for blu¢ng that is relevant when bets are sunk and only actions -not valuationsdetermine the winner. Predictions from poker are invalid in such nonzero-sum games. Blu¢ng (respectively Sandbagging) occurs when a weak (respectively strong) player seeks to deceive his opponent into thinking that he is strong (respectively weak). A player with a moderate valuation shou...