Ensuring Dynamic Accuracy of Aircraft’s Air Data System with Motionless Flush-Mounted Receiver of Flow

The article views, that draw-backs of aircraft’s traditional air data systems (ADS), built based installed in incoming air flow and installed outside the fuselage the pitot tube booms, temperature braking receivers, vane sensors of incidence angle and gliding angle are eliminated in original ADS with motionless flush-mounted receiver of flow. The functional scheme of aircraft’s air data system with motionless flush-mounted receiver of flow, built based on the original ion-mark sensor of aerodynamic angle and true airspeed, on receiving board of which the hole-receiver is installed to perceive the static pressure of incoming air flow. Models of operator sensitivity and dynamic errors of instrumentation channels due to random stationary atmospheric turbulence and random flow pulsations at location of the ion-mark sensor on fuselage of the aircraft are presented. Recommended to use the optimal linear Wiener filter, the synthesis method of which is revealed on example of the true airspeed instrumentation channel to reduce the stationary dynamic errors of instrumentation channels of air data system with motionless flush-mounted receiver due to atmospheric turbulence. Recommended to use the principle of integration to reduce the stationary random dynamic errors of instrumentation channels of air data system with motionless flush-mounted receiver due to flow pulsations near fuselage at location of ion-mark sensor. Proposed to use aeromechanical measuring and computing system built based VIMI method with Luenberger observer as an additional component of integrated air data system. Integrated system simulates the movement of aircraft in this flight mode and by flight parameters measured with high accuracy using flush-mounted receivers "restores" air signals included in equations of movement of aircraft. The structure, method and algorithms for determining air signals in channels of aeromechanical measuring and computing system with a Luenberger observer are presented. Using the example of true airspeed measurement, the analysis and quantitative assessment of residual dynamic error of integrating channel of integrated aircraft’s air data system with motionless flush-mounted receiver of flow is carried out.

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Integrated Voice-and-Data User Interface Designs

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/154193128603000819 ◽

1986 ◽

Vol 30 (8) ◽

pp. 814-818

Author(s):

F. M. Marchetti ◽

B. H. Tsuji

Keyword(s):

User Interface ◽

Social Interactions ◽

Integrated System ◽

Data System ◽

Data Systems ◽

Data User ◽

Voice Data ◽

Interface Designs

A relatively new area of development is integrated voice and data systems. With its advent come challenges for both the engineering and behavoural scientists. Because integrated voice and data systems provide an opportunity to rely on human social interactions and communication, the user interface for such an integrated system is greatly simplified. Below we describe the behavioural issues which have guided the development of an integrated voice-data system.

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An integrated system of observations driven by societal benefit

10.5194/egusphere-egu21-16516 ◽

2021 ◽

Author(s):

Jan Rene Larsen ◽

Sandy Starkweather

Keyword(s):

Indigenous Peoples ◽

Indigenous Communities ◽

Integrated System ◽

Data System ◽

Benefit Sharing ◽

Global Ocean ◽

Success Factor ◽

Data Systems ◽

Global Networks ◽

Societal Benefit

Sustaining Arctic Observing Networks (SAON) and its committees have emerged as a vital regional facilitator for advancing sustained investments in Arctic observing and data management across a partnership of Arctic and non-Arctic countries, regional and global organizations, including those of Arctic Indigenous Peoples. The lack of a consistent, equitable and holistic planning mechanism has hampered efforts to strategically improve these systems. In response, SAON set forth a vision in its 2018-2028 strategic plan to develop a Roadmap for Arctic Observing and Data Systems (ROADS) to address this systemic shortcoming and improve linkages across independently funded efforts. ROADS will address this short-coming through generating a systems-level view of observing and data system impacts, requirements and implementation strategies under its Roadmap and engaging a diverse and inclusive group of actors to deliver it. A critical success factor for ROADS is the equitable inclusion of Indigenous Peoples in the design and development process, which presents specific challenges. These challenges include differing world views of knowledge systems and historical and current inequities that have limited the degree to which Indigenous communities and organizations can make their voices heard or support the human capacity required to engage in planning. ROADS is embedding strategies to address these challenges, particularly focused on funding Indigenous expertise.&#160;ROADS is both a holistic concept, building from the societal benefit-based approach of the International Arctic Observing Assessment Framework, and one that can proceed step-wise so that the most imperative Arctic observing elements can be rapidly improved and accessed through interoperable data systems. The concept of Shared Arctic Variables (SAVs) occupies a central place in the ROADS planning process (Fig. 1). SAVs are linked to the essential variable strategies of broader global networks (e.g. Global Ocean Observing System, Global Atmospheric Watch), and through an emphasis on broadly shared societal benefit, extend their definitions in support of Indigenous-led benefit and regionally identified science and decision-making needs. Guided by a principle of benefit sharing, the ROADS process is designed to engage diverse partnerships of experts across sectors in support of integrated Arctic observing and data system development

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Models for Generating and Processing of Signals of the Panoramic Sensor of Aerodynamic Angle and True Airspeed

Mekhatronika Avtomatizatsiya Upravlenie ◽

10.17587/mau.22.442-448 ◽

2021 ◽

Vol 22 (8) ◽

pp. 442-448

Author(s):

V. M. Soldatkin ◽

V. V. Soldatkin ◽

E. S. Efremova ◽

B. I. Miftachov

Keyword(s):

Air Flow ◽

Limited Range ◽

Analytical Models ◽

Integrated Sensor ◽

Time Frequency ◽

Aerodynamic Angles ◽

Functional Scheme ◽

True Airspeed ◽

Informative Signals ◽

Aerodynamic Angle

The importance of information about the true airspeed and aerodynamic angles of aircraft and replenishment of arsenal of their measuring means with only electronic design scheme, low weight and cost, providing a panoramic measurement of the gliding angle is noted. It is shown that traditional measuring means of true airspeed of AP, which implement the aerodynamic and vane measuring methods of parameters of incoming air flow, using receivers and sensors distributed over the fuselage, have a complex design, significant weight and cost, and limited ranges of measuring aerodynamic angles, which limits their use on small-sized aircraft plane. The integrated sensor of aerodynamic angle and true airspeed, which implements a vortex method for measuring the parameters of incoming air flow, is considered. A single fixed flow receiver simplifies the design, and the time-frequency primary informative signals reduce the errors of instrumentation channel. The limited range of measurement of the gliding angle limits the use of the sensor on small AP. The integrated sensor of aerodynamic angle and true airspeed, which implements the ion-mark method for measuring the parameters of incoming air flow, is considered. The sensor provides a panoramic measurement of aerodynamic angle using receivers distributed in the measurement plane. But the multichannel measuring circuit significantly complicates the design, increases the weight and cost of the sensor, which limits its use on small-sized aircraft plane. The functional scheme of the original panoramic purely electronic sensor of the aerodynamic angle and true airspeed with one fixed receiver of the incoming air flow and ultrasonic instrumentation channels is revealed. Analytical models of the formation, processing and determination of the aerodynamic angle and true airspeed using frequency, time-pulse and phase informative signals are obtained. The analysis of the variants of used informative signals determines the prospects of using of the panoramic sensor with frequency informative signals on small-sized aircraft plane, in which there are no methodological errors from the influence of the ambient temperature when changing the flight altitude.

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Renewable Energy Based Dimethyl-Ether Production System Linked With Industrial Waste Heat

Journal of Energy Resources Technology ◽

10.1115/1.4044056 ◽

2019 ◽

Vol 141 (12) ◽

Author(s):

Magd N. DinAli ◽

Ibrahim Dincer

Keyword(s):

Renewable Energy ◽

Dimethyl Ether ◽

Production System ◽

Waste Heat ◽

Synthesis Method ◽

Simulation Software ◽

Proton Exchange ◽

Integrated System ◽

Synthesis System ◽

Energy And Exergy

A new renewable energy based dimethyl-ether (DME) production system is proposed in this paper. The DME is then produced through the indirect synthesis method where methanol is produced first through carbon hydrogenation process, then methanol derived to a process called methanol dehydration to produce the DME. The proposed integrated system consists of four main subsystems named as carbon capturing and heat recovery system, proton exchange membrane (PEM) hydrogen production system, methanol synthesis system, and the DME synthesis system. The main inputs are electrical energy from photovoltaic (PV) solar panels and thermal energy from flue gas waste heat. The system is modeled and simulated using both aspen plus process simulation software and engineering equation solver (EES) and assessed based on energy and exergy approaches. The energy and exergy efficiencies are determined to be 40.46% and 52.81%, respectively.

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Sampled-data system with computation time delay - Optimal W-synthesis method

Journal of Guidance Control and Dynamics ◽

10.2514/3.21661 ◽

1996 ◽

Vol 19 (3) ◽

pp. 584-591 ◽

Cited By ~ 6

Author(s):

Cheolkeun Ha ◽

Uy-Loi Ly

Keyword(s):

Time Delay ◽

Synthesis Method ◽

Computation Time ◽

Data System ◽

Sampled Data

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FR-IR Molecular Microanalysis System

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100134958 ◽

1990 ◽

Vol 48 (2) ◽

pp. 270-271

Author(s):

John A. Reffner ◽

William T. Wihlborg

Keyword(s):

Fourier Transform ◽

Fourier Transform Infrared ◽

Integrated System ◽

Morphological Examination ◽

Fully Integrated ◽

Ir Microscopy ◽

Normal Functions ◽

Infrared Microspectroscopy ◽

Infrared Spectral ◽

Ft Ir

The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.

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Fate of sperm membrane in fertilized ova

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100146047 ◽

1993 ◽

Vol 51 ◽

pp. 40-41

Author(s):

Frank J. Longo

Keyword(s):

Electron Microscopy ◽

Electrical Activity ◽

Sea Urchins ◽

Morphological Changes ◽

Integrated System ◽

Electrophysiological Recording ◽

Experimental Conditions ◽

The Status ◽

Sperm Membrane ◽

Temporal And Spatial

Measurement of the egg's electrical activity, the fertilization potential or the activation current (in voltage clamped eggs), provides a means of detecting the earliest perceivable response of the egg to the fertilizing sperm. By using the electrical physiological record as a “real time” indicator of the instant of electrical continuity between the gametes, eggs can be inseminated with sperm at lower, more physiological densities, thereby assuring that only one sperm interacts with the egg. Integrating techniques of intracellular electrophysiological recording, video-imaging, and electron microscopy, we are able to identify the fertilizing sperm precisely and correlate the status of gamete organelles with the first indication (fertilization potential/activation current) of the egg's response to the attached sperm. Hence, this integrated system provides improved temporal and spatial resolution of morphological changes at the site of gamete interaction, under a variety of experimental conditions. Using these integrated techniques, we have investigated when sperm-egg plasma membrane fusion occurs in sea urchins with respect to the onset of the egg's change in electrical activity.

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