|
Showing 1 - 3 of
3 matches in All Departments
This manual reviews the definitions and typical approach to quality
assurance in healthcare and includes a review of the most prominent
quality studies. A program for quality management in surgery is
presented with chapters reviewing patient safety and external
reporting requirements. An introduction to medical malpractice and
risk management is also provided and followed by a chapter on how
to implement the necessary behavioral changes to improve quality
practices. The appendix includes useful protocols, forms and order
sets.
The use of continuous electric propulsion to manipulate a
satellite's orbit offers significant potential for enhancing
coverage of a target in ways not previously considered. Elliptical
orbits utilizing a very low perigee can facilitate access to the
surface and atmosphere of the Earth at sub-ionosphere altitudes
while counteracting atmospheric drag forces using continuous
electric propulsion. Additionally, in-plane and out-of-plane
manipulation of both circular and elliptical orbits can allow for
passage of a satellite over a target at a given time. Sustained low
perigee orbit was modeled with an initial perigee altitude of 100
km and various apogee altitudes to derive a range of apogee
altitudes that could sustain the orbit. Operation was demonstrated
for current as well as future thruster capabilities. To evaluate
opportunities for a scheduled access, circular and various
elliptical orbits were modeled using continuous thrust. It was
found that electric propulsion was capable of improving potential
temporal access of a target to 30% for circular orbits and nearly
70% for elliptical orbits Recommendations include further modeling
of low perigee orbits and the effects of atmospheric variation at
solar extremes on mission lifetime. Derivation of optimal thrust
duration and angle could greatly enhance the performance of the
thruster and warrants continued research. Finally, the use of
responsive maneuver operationally will require development of a
scheduling algorithm to plan passage over a given target at a given
time.
|
You may like...
Wonka
Timothee Chalamet
Blu-ray disc
R250
R190
Discovery Miles 1 900
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.