This paper describes a novel inlet flow conditioning concept that significantly improves ducted fans’ performance and controllability. High angle-of-attack operation of fans is very common in vertical-takeoff-and-landing systems. The new named double-ducted fan (DDF) uses secondary shroud to control lip-separation-related momentum deficit at the rotor during edgewise flight. DDF helpful wide fl...

We consider depth-3 unbounded fanin threshold circuits. Gates are usual threshold functions T n k which compute 1 ii at least k of the inputs are equal to 1; the minimum minfk; n ? k + 1g is the threshold value of this gate. We show that the function T n k cannot be computed by a small depth-3 threshold circuit with threshold values of its gates much smaller than k:

In this paper we consider a mixed boundary value problem with nonhomogeneous, nonlinear differential operator (called double phase operator), convection term (a reaction depending on the gradient), three multivalued terms, and an implicit obstacle constraint. Under very general assumptions data, prove that solution set of such is nonempty (so there at least one solution) weakly compact. The pro...

As people learn more facts about a concept, those facts become more difficult to remember. This is called the fan effect, where fan refers to the number of facts known about a concept. Increasing fan has been shown to decrease accuracy and increase response time and left ventrolateral prefrontal cortex (VLPFC) activity during retrieval. In this study, participants learned 36 arbitrary person-lo...

OBJECTIVES In a job site, a portable fan is often used to ventilate a confined space. When a portable fan is applied to such a space, the actual ventilation flow rate must be accurately estimated in advance because the safety level of contaminant and oxygen concentrations in the space will determine the ventilation requirements. When a portable fan is used with a flexible duct, the actual flow ...

BACKGROUND Sorghum types suitable for brewing and bioethanol production are required. The effect of sorghum type (white non-tannin versus white type II tannin) on free amino nitrogen (FAN) production from sorghum grain and malt using exogenous protease enzymes was investigated over extended incubation at moderate temperature (45 °C). RESULTS With grain in the absence of exogenous proteases, w...

The WD-repeat protein factor associated with nSMase activity (FAN) is a member of the family of TNF receptor adaptor proteins that are coupled to specific signaling cascades. However, the precise functional involvement of FAN in specific cellular TNF responses remain unclear. Here, we report the involvement of FAN in TNF-induced actin reorganization and filopodia formation mediated by activatio...

This paper uses mortality fan charts to illustrate prospective future male mortality. These fan charts show both the most likely path of male mortality and the bands of uncertainty surrounding that path. The fan charts are based on a model of male mortality that is known to provide a good fit to UK mortality data. The fan charts suggest that there are clear limits to longevity—that future morta...

The goal of this paper is to show that the local Gröbner fan is a polyhedral fan for ideals in the ring of power series and the homogenized ring of analytic differential operators. We will also discuss about relations between the local Gröbner fan and the (global) Gröbner fan for a given ideal and algorithms of computing local Gröbner fans. In rings of differential operators, finiteness and con...