It is a widely accepted premise of industrial management that an
interruption in the performance of a task will be accompanied by a
decrease in operator skill level upon resuming performance of the
task. Moreover, it has been generally assumed that this loss of
skill is related to several factors...
The objective of this research was to investigate
the physiological effects of body posture on cycling.
The familiar positions of bicycle riding have been the
touring posture (hands stretched on top handlebar) and
the racing posture (hands bent at the elbow, with the
back horizontal). However, a relatively new stance...
Factors influencing the emergence of collective action are studied using survey data from individual boat owners from Barka, Masn’a and Suwaiq. Fishermen who adopt a cooperative strategy tend to be more risk averse and have high economic dependence on the common property resources. Social identity as a fisherman also appears...
A contactor has been designed and constructed for experimental
studies of mass transfer with or without chemical reaction between
two fluid phases. The contactor is flexible enough to investigate a
wide range of variables affecting mass transfer coefficients. It is
easy to operate; it could be operated either as a...
Disk space fragmentation is the proliferation of small and
unusable gaps. This problem is considered within the context of
IBM's VM operating system.
Facing this problem, researchers resorted to using algorithms
based on memory management techniques, such as placement
strategies (first-fit, best-fit, and worst-fit). Solutions based on these
algorithms do...
Environmental factors such as temperature, air, and water can have a profound
effect on the durability of asphalt concrete mixtures. In mild climates where good
quality aggregates and asphalt cement are available, the major contribution to
deterioration may be due to traffic loading and the resultant distress is manifested
in...
Adjustable Speed Drive (ASD) systems are widely used in industry to effectively improve process efficiency and control. Typically, an ASD system consists of a motor with its speed controlled by a power electronics converter via varying the amplitude and frequency of the input voltage. However, several abnormal insulation failures of...
Sulfur content of fuels and desulfurization of fuels is becoming an
important environmental restriction and regulatory issue. In this study new
technology for the desulfurization of fuels is considered. Micro scale reactors are
introduced for desulfurization of thiophene and dibenzothiophene.
Thiophene and dibenzothiophene are mixed with hexane at concentration, C₀...
A computational model for a resonantly coupled alpha free-piston Stirling cooler
is presented. The cooler consists of two isothermal working spaces for compression and
expansion connected by a regenerator consisting of a stack of narrow parallel channels.
The regenerator is assumed to have a linear temperature distribution along its axial...