The fuel consumption impact of the turning point location for the point merge system

2022 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Ramazan Kursat Cecen
Keyword(s):  
Fuel Consumption ◽  
Turning Point ◽  
Point Location

A NOVEL FRAMEWORK FOR SIGNAL REPRESENTATION AND SOURCE SEPARATION: APPLICATIONS TO FILTERING AND SEGMENTATION OF BIOSIGNALS

2006 ◽  
Vol 14 (02) ◽  
pp. 169-183 ◽  
Author(s):  
GARI D. CLIFFORD
Keyword(s):  
Noise Reduction ◽  
Gradient Descent ◽  
Turning Point ◽  
Source Separation ◽  
Signal Representation ◽  
Point Location ◽  
General Technique ◽  
Periodic Oscillations ◽  
Biomedical Signals ◽  
Gaussian Kernels

A general technique for representing quasi-periodic oscillations, typical of biomedical signals, is described. Using energy thresholding and Gaussian kernels, in conjunction with a nonlinear gradient descent optimization, it is shown that significant noise reduction, compression and turning point location is possible. As such, the signal representation model can be considered a form of correlated source separation. Applications to filtering, modelling and robust ECG QT-analysis are described.

scholarly journals ESTIMATION OF TURNING POINT LOCATION OF CONVEX SOLUTIONS FOR NONLINEAR SECOND-ORDER DIFFERENTIAL EQUATIONS

2012 ◽  
Vol 17 (5) ◽  
pp. 642-649
Author(s):  
Robert Vrabel
Keyword(s):  
Differential Equations ◽  
Boundary Conditions ◽  
Ordinary Differential Equations ◽  
Turning Point ◽  
Dirichlet Boundary ◽  
Upper Bounds ◽  
Dirichlet Boundary Conditions ◽  
Lower And Upper Bounds ◽  
Point Location ◽  
Second Order Differential Equations

In this paper, we study the existence and location of turning points of the convex solutions for a certain class of the ordinary differential equations subject to the Dirichlet boundary conditions. We propose a practical and effective method for calculating the lower and upper bounds of turning point location.

Workload Perception of Air Traffic Control Officers and Pilots During Continuous Descent Operations Approach Procedures

2019 ◽  
Vol 9 (1) ◽  
pp. 2-11
Author(s):  
Marina Efthymiou ◽  
Frank Fichert ◽  
Olaf Lantzsch
Keyword(s):  
Fuel Consumption ◽  
Traffic Control ◽  
Air Traffic Control ◽  
Negative Impact ◽  
Air Traffic ◽  
Reduce Fuel Consumption ◽  
Total Load ◽  
Open Path

Abstract. The paper examines the workload perceived by air traffic control officers (ATCOs) and pilots during continuous descent operations (CDOs), applying closed- and open-path procedures. CDOs reduce fuel consumption and noise emissions. Therefore, they are supported by airports as well as airlines. However, their use often depends on pilots asking for CDOs and controllers giving approval and directions. An adapted NASA Total Load Index (TLX) was used to measure the workload perception of ATCOs and pilots when applying CDOs at selected European airports. The main finding is that ATCOs’ workload increased when giving both closed- and open-path CDOs, which may have a negative impact on their willingness to apply CDOs. The main problem reported by pilots was insufficient distance-to-go information provided by ATCOs. The workload change is important when considering the use of CDOs.

Summary

1999 ◽  
pp. 95
Author(s):  
Editorial board Of the Journal
Keyword(s):  
Turning Point ◽  
Religious Studies ◽  
The Self ◽  
Social Teaching ◽  
World Outlook ◽  
The Social

In the 10th issue of the Bulletin “Ukrainian Religious Studies” in the rubric “Scientific Reports and Announcements” there are in particular the following papers: “Religious Studies and Theology” by A.Kolodny, “Activity of the Orthodox Mission in Ukraine on the Turning Point of the XIX-XXth Centuries” by G.Nadtoka, “Religion in the Spiritual Heritage of V.Lypinsky” by L.Kondratyk, “Church as a Factor of the Self-identification of the Nation in the Cultural and Civilization Environment” by O.Nedavnya, “The Problems of Development of The Social Teaching of the Catholicism” by V.Sergyiko, “The God-Thunder Perun in the Pagan World-outlook of the Ancient Rus’” by N.Fatyushyna and other papers

КОНЦЕПЦІЯ СТВОРЕННЯ СИЛОВОЇ УСТАНОВКИ СІМЕЙСТВА РЕГІОНАЛЬНИХ ПАСАЖИРСЬКИХ ЛІТАКІВ АН-148/АН-158

2019 ◽  
pp. 50-63
Author(s):  
О. Д. Донець ◽  
В. П. Іщук
Keyword(s):  
Power Plant ◽  
Noise Reduction ◽  
Fuel Consumption ◽  
Electronic System ◽  
Electronic Control ◽  
Level Of Automation ◽  
Auxiliary Power ◽  
Power Plant Control ◽  
Technical Status ◽  
Air Intake

The basic results of calculation and research works carried out in the process of creation of power unit of regional passenger airplanes’ family are given. The design features of the propulsion engines and engine of the auxiliary power plant are described. The aforementioned propulsion system includes propulsion engines D-436-148 and engine AI-450-MS of auxiliary power plant. In order to comply with the requirements of Section 4 of the ICAO standard (noise reduction of the aircraft in site), in part of ensuring the noise reduction of engines, when creating the power plant of the An-148/An-158 aircraft family, a single- and double-layer acoustic filler was used in the structure of the engine nacelle and air intake. The use of electronic system for automatic control of propulsion engines such as FADEC and its integration into the digital airborne aircraft complex ensured the operation of engines, included in the power plant provided with high specific fuel consumption, as well as increased the level of automation of the power plant control and monitoring, and ensured aircraft automation landing in ICAO category 3A. In addition, the use of the aforementioned electronic system, allowed to operate the power plant of the aircraft in accordance with technical status. The use of the AI-450-MS auxiliary power plant with an electronic control system such as FADEC, and the drive of the service compressor from a free turbine, eliminated the effect of changes in power and air takeoff, on the deviation of the engine from optimal mode, which also minimized the fuel consumption. The use of fuel metering system TIS-158, allowed to ensure control of its condition and assemblies, without the use of auxiliary devices, built-in control means. In the fire protection system, the use of the electronic control and monitor unit, as well as the use of digital serial code for the exchange of information between the elements of the system and the aircraft systems, has reduced the number of connections, which increased the reliability of the system and reduced its weight characteristics.

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