Nowadays, the performance evaluation of high-speed TCP protocols is the subject of intensive research. The main criteria used to evaluate the performance are: Fairness, Backward compatibility, Efficiency, Responsiveness, Scalability, TCP friendliness, and convergence. Most of researches were conducted to evaluate fairness. The majority of these researches used only two flows in a Dumbbell topol...

This paper describes a three-dimensional Eulerian-Lagrangian method for the modeling and simulation of high-speed multi-material dynamics. The equations for conservation of mass, momentum, and energy are solved on a fixed Cartesian grid using a fully conservative higher order MUSCL scheme. The dilatational response of each material is handled using a suitable equation of state. The embedded int...

In this project a new control-theoretic framework will be developed for rate-based robust ow controller design for high speed networks, and the algorithms derived from this framework will be adapted for implementation in ATM networks and in the Internet. For this purpose the PIs will collaborate to investigate speciic issues arising in their areas of expertise: ATM and Internet ow control, and ...

Walking speed was timed for male and female pedestrians on a public sidewalk with fast, slow, or no music playing in the background (n = 20 per condition). Pedestrians in the fast music condition walked more rapidly than those in the other two conditions. Slow music did not reduce walking speed, relative to the no music condition. Walking speed did not differ by gender in any of the three condi...

This paper presents a HiPO (High-sPeed Orderpreserving broadcast) protocol which provides highthroughput group communication service on a highspeed single channel network like FDDI. By the HiPO protocol, every application entity can atomically receive all the messages broadcast in the group in the same order as they were sent. This service is an OP (orderpreserving broadcast) one. The execution...

How do animals and insects use visual information to move through the world successfully? Optic flow, the pattern of motion at the eye, is a powerful source of information about self-motion. Insects and humans are sensitive to the global pattern of optic flow and try to maintain flow symmetry when flying or walking. The environments humans encounter, however, often contain demarcated paths that...

We describe a high-speed immunoephelometric continuous-flow system. The mechanical timing asembly and cams of the sampler were replaced by an external electronic control unit. Improved sampling precision, speeds of 2 to 900 samples per hour, and a wide variety of sample-to-wash ratios are the most important advantages of the unit. We analyzed albumin and fibrinogen at speeds of 150, 180, and 21...

A high-speed, high-performance, contin uous-f low analyzer is described that operates at two to three times the usual analysis rate without necessitating corrections of the raw data and with no decrease in accuracy or precision. At faster speeds (180-300 sam pies/h) inductive sample interaction (%l,), opposite in direction to carry-over, is for the first time quantitatively measured. A correcti...

Strong cross-winds may overturn trains, so an understanding of the fluid mechanics is important. To facilitate the proper estimation of the probability of a train overturning, accurate data for the aerodynamic rolling moment about the lee rail is essential. (Of course, many other parameters are required.) The flow of a turbulent cross-wind over a train moving across an embankment is complex, an...