We use direct numerical simulation to study the mixing behaviour of pulsed jets in crossflow. The pulse is a square wave and the simulations consider several jet velocity ratios and pulse conditions. Our objective is to study the effects of pulsing and to explain the wide range of optimal pulsing conditions found in experimental studies of the problem. The central theme is that pulsing generate...

The re-deposition of detached dust during online pulse-jet cleaning is an important issue encountered filter regeneration. To reduce re-deposition, multi-pulsing jet schemes were designed and experimentally tested. A pilot-scale collector was built with one vertically installed pleated cartridge. effects pulse duration interval on the pressure tested, rate mechanism studied analyzed. It found t...

In this paper, we propose a new mechanism to combat pulsing Denial-of-Service (DoS) attacks. Pulsing DoS attacks can seriously degrade the throughput of legitimate TCP flows in a stealthy manner. The attacker send periodic short bursts of traffic (i.e. pulses) to cause packet losses of TCP flows. For improving robustness of TCP against the attacks, we propose to use adaptive bandwidth estimatio...

Applied electric fields (static and pulsing) are widely used in orthopedic practices to treat nonunions and spine fusions and have been shown to improve ligament healing in vivo. Few studies, however, have addressed the effect of electric fields (EFs) on ligament fibroblast migration and biosynthesis. In the current study, we applied static and pulsing direct current (DC) EFs to calf anterior c...

We report experimental data and modeling results based on device physics and circuit parameters for the spontaneous firing patterns for silicon p-i-n structures at 4.2 K controlled by a constant current source. The model provides insights into the sensitivity of the pulsing rate and explains the wide range of behavior. observed. The knowledge on the effect of these parameters on pulsing is crit...

High-voltage pulsing has previously been shown to dramatically increase molecular transport across skin. The goal of this study was to examine the functional dependence of transdermal transport on pulse parameters and to make comparisons with iontophoresis. Transdermal transport of calcein, a model drug, was measured during low-voltage, constant electric fields (iontophoresis) and high-voltage ...