Pilot control

There are various designs and types of pressureregulating valves. The spring-loaded reducer and the pilot-controlled valve are the most common. 

Wilens, T.E., Hahesy, A.L., Biederman, J., Bredin, E., Tanguay, S., Kwon, A. and Faraone, S.V. (2005) Influence of parental SUD and ADHD on ADHD in their offspring preliminary results from a pilot-controlled family study. American Journal on Addictions 14, 179-187. 

Kurlan, R., Como, P.G., Deeley, C., McDermott, M., McDermott, M.P. (1993) A pilot controlled study of fluoxetine for obsessive-compulsive symptoms in children with Tourette s syndrome. Clin Neuropharmacol 16 167-172. 

Wilens, T.E., Biederman, J., Spencer, T.I. Bostic, J., Prince, J., Mon-uteaux, M.C. Soriano, J., Fine, C., Abrams, A., Rater, M., and Polisner, D. (1999a) A pilot controlled clinical trial of ABT-418, a cholinergic agonist, in the treatment of adults with attention deficit hyperactivity disotdet. Am J Psychiatry 156 1931-1937. 

J. P. Vigier, Explicit mathematical construction of relativistic non-linear de Broglie waves described by three-dimensional (wave and electromagnetic) solitons piloted (controlled) by corresponding solutions of associated linear Klein-Gordon and Schrodinger equations, Found. Phys. 21(2) (1991). 

Select the size of the pilot-controlled pressure-regulating valve. Enter the capacity table in the engineering data of an acceptable pilot-controlled pressure-regulating valve, similar to Table 6.17, at the required capacity, 30,000 lb/h, and project across until the correct inlet steam pressure column, 225 psig, is intercepted, and read the required valve size as 4 in. 

Herrmann WM, Kubicki ST, Boden S, et al. Pilot controlled double-blind study of the hypnotic effects of Zolpidem in patients with chronic learned insomnia psychometric and pciyscmnographic evaluation. J Int Med Res 1993 21 306-322. 

Development of formal ontology to develop the state ontology Ont introduced above, all relevant sorts, constants, functions and predicates have to be specified for the domain under investigation, enabling the modeller to describe the relevant aspects of the world (e.g., pilots, controllers, aircraft, actions, communications, mental states, and so on). This step is addressed in Sect. 4.1 of the current paper. 

Another useful distinction is between errors of omission and errors of commission. Sarter and Woods [181] note that in older, less complex aircraft cockpits, most pilot errors were errors of commission that occurred as a result of a pilot control action. Because the controller, in this case the pUot, took a direct action, he or she is likely to check that the intended effect of the action has actually occurred. Hie short feedback loops allow the operators to repair most errors before serious consequences result. This type of error is stiU the prevalent one for relatively simple devices. 

Again, these inadequate pilot control actions can be restated as safety constraints that can be used to generate pilot procedures. Similar hazardous control actions and constraints must be identified for each of the other system components. In addition, inadequate control actions must be identified for the other functions provided by TCAS (beyond RAs) such as traffic advisories. 

Common part failure Three totally independent flying control systems may merge together in a common part - the pilots control column. A failure of this common part causes total system failure. 

Incident reports were taken from the Aviation Safety Report System (ASRS) database report set. The Global Positioning System (GPS) report set features 50 incidents involving the use of GPS devices for the period 2004 through 2006. This report set can be found on the ASRS website . The ASRS collects, analyzes and responds to aviation safety incident reports that have been submitted voluntarily by pilots, controllers and others. Due to the voluntary submission of these reports it has a reporting bias and represents only a certain group of pilots. 

Operation. Magnetic starters for multispeed apphcations select the desired speed in accordance with the pilot control. 

The shock to machinery on the reduction of speed is greater than when the speed is increased. Therefore, the pilot control should be wired so that the stop button must be... 

These controls may be modified for compeUing or acceleration pilot control. 

In the position drawn in Fig. 177, the longest contact pin touches the mercury level. When the withdrawal of water continues, the last circuit in the air chamber will be broken due to the fall in the mercury level and due to the release of solenoid I the pilot control for the automatic shutoff valve is changed over. Now a connection is established between the cylinder bore under the lifting piston for shutoff valve with the return piping through the opened valve 2 of the pilot control. The shutoff valve is closed and withdrawal of water from the accumulator, i. e. any passing of compressed air into the piping, is thus prevented. 

Re-starting of the pumps or closing of the by-pass valve by reversing the pilot control takes place, when the last but one contact pin is cleared, i. e. after a cycling stroke has been performed as already explained in the operation of the shutoff valve. 

In oil-hydraulic presses which are controlled by balanced piston-valves, there is only a small force required and therefore a solenoid in conjunction with a spring may be used. As a rule, the solenoid is deenergized in the return position of the main piston. Large control slide-valves are moved by a piston, when the solenoid operated piston-valve serves as a pilot control. 

This equipment being very expensive, preference is now given to a servo-motor - similar to that employed wnth the pump in Fig. 174-the piston of which is pilot controlled by a solenoid operated slide-valve. The servo-motor is driven by a small gear pump w hich delivers the pressure oil for a 30 to 40 atm control circuit. 

Alfredini P., Gerent IP, Arasaki E. 2011. Analogical Manoeuvring Simulator with Remote Pilot Control for Port Design and Operation Improvement. International Journal on Marine Navigation and Safety of Sea Transportation Vol. 5 No. 3 315-322. 

Types of Pilot-Controller Communication Errors and Recommendations for Reducing Pilot-Controller Communication Errors... 

Past experience indicates that the commimication between air traffic controllers and pilots is subject to various types of errors. In fact, as per a Federal Aviation Administration (FAA) study of 386 reports submitted to the Aviation Safety Reporting System (ASRS) during the period from July 1991 to May 1996, the pilot-controller communication errors can be grouped into four types [18] ... 

In this study, no pilot read-back (i.e., the lack of a pilot read-back) accounted for approximately 25% of the total pilot-controller communication errors. The study highlighted the pilot expectation as the most common factor for the occurrence of errors related to no pilot read-back. 

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