Last edited by Migar
Tuesday, February 11, 2020 | History

1 edition of Conceptual design and analysis of a large antenna utilizing electrostatic membrane management found in the catalog.

Conceptual design and analysis of a large antenna utilizing electrostatic membrane management

Conceptual design and analysis of a large antenna utilizing electrostatic membrane management

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Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Radiometersondes,
  • Antennas, Reflector,
  • Space vehicles -- Radio antennas

  • Edition Notes

    StatementA.L. Brook ... [et al.] ; prepared for Langely Research Center under contract NAS1-16447
    SeriesNASA contractor report -- 3522
    ContributionsBrook, A. L, Langley Research Center, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, Martin Marietta Denver Aerospace
    The Physical Object
    Paginationiv, 306 p. :
    Number of Pages306
    ID Numbers
    Open LibraryOL14930891M

    US EPA Guidance manual for compliance with the interim enhanced surface water treatment rule: turbidity provisions. Membrane fouling and particle retention in a feed solution also builds up a concentration gradients and particle back flow concentration polarization. Advanced Materials, ; DOI: Further analysis of reduced scale model test has been done, of which the results meet well with the theoretical calculation results. American Water Works Association Research Foundation Particle count method development for concentration standards and sample stabilization.

    Madison, WI. The distribution of the prestressed need be through morphological analysis to find in finish. Based on the analysis of two methods: force reduction equilibrium method and inverse iteration method, the basic thought and algorithm of the two methods were analyzed. In the publication in Advanced Materials, doctoral student Veronika Obersteiner, Egbert Zojer and other colleagues from the team demonstrate the full potential of the concept by extending it to three-dimensional materials. Part of the Handbook of Environmental Engineering book series HEE, volume 13 Abstract The purpose of this chapter is to provide the basic information on the use of membrane filtration and application of the technology in the design of potable water facilities.

    Her research experience includes membrane bioengineering, biocatalytic membrane reactors, integrated membrane systems for bioseparations and bioconversions, downstream processing based on molecular separation, membrane chirotechnology, and membrane emulsifiers. Johnson WT Predicting log removal performance of membrane systems using in-situ integrity testing. AMTA Technology transfer workshop — membrane applications for all your thirsty needs. Further analysis of reduced scale model test has been done, of which the results meet well with the theoretical calculation results. In contrast, there are many process streams that have high concentrations of particles or macromolecules such as cells, proteins and precipitates that will rapidly compact on the filter surface when operated in a dead-end mode.


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Conceptual design and analysis of a large antenna utilizing electrostatic membrane management Download PDF Ebook

This research explores a novel method for deployment of membrane space structures using electrostatic pressure as the inflation mechanism. Some common examples of dead-end filtration are home water filters, vacuum cleaners, and automobile oil filters.

Charged particle emission and remote charging methods are explored as inflation mechanisms. In dead-end filtration the direction of the fluid flow is normal to the membrane surface.

In addition, Dr. Spiral wounds are constructed from similar flat Conceptual design and analysis of a large antenna utilizing electrostatic membrane management book but in the form of a "pocket" containing two membrane sheets separated by a highly porous support plate.

Madison, WI. The load bearing capacity and deformability of landside curtain wall under load cases with seismic loads and wind loads were analyzed. The dead-end membrane separation process is easy to implement and the process is usually cheaper than cross-flow membrane filtration.

Humana Press, Inc. Numerical simulation enables a relationship between required inflation pressure to offset disturbances and voltage. To solve this problem, study has been done on this issue. Energy Center of Wisconsin Membrane filtration fact sheet.

The results showed that the displacements of curtain wall and the internal forces of cables met the requirements, and the cable net curtain wall had little effect on the main steel structure. The initial start-up phase is a critical step in the successful installation of a full-scale membrane filtration system and thus is an essential consideration in the facility planning and design process.

Many simple filtration processes use a dead-end technique — the flow of liquid to be filtered is directed perpendicular to the filter surface, This is effective when the concentration of particles to be removed is low or the packing tendency of the filtered material does not produce a large pressure drop across the filter medium.

The concept is especially interesting for solar cells. In the publication in Advanced Materials, doctoral student Veronika Obersteiner, Egbert Zojer and other colleagues from the team demonstrate the full potential of the concept by extending it to three-dimensional materials.

Hofmann, Egbert Zojer. This work is the climax to our intensive research on the electrostatic design of materials," says Zojer.

Typical industrial uses include the sterile filtration of water, beer, and wine. Simulations grant a deep insight into the quantum mechanical effects which determine material properties.

That this radically new approach also works for three-dimensional materials has been demonstrated by the Graz team in Advanced Materials, which according to Google Scholar is internationally the most important journal in the field of materials research.

Applying electric charge to a layered gossamer structure provides an inflationary pressure due to the repulsive electrostatic forces between the charged layers. Secondary electron emission characteristics of EIMS materials were determined experimentally.

The dead-end membranes are relatively easy to fabricate which reduces the cost of the separation process. Record type: Article Abstract The study of the transmission of electromagnetic waves through a photonic crystal with various membranes placed over the surface is presented in this paper.

The numerical results indicate that the large cable network structure can be obtained through analysis for force satisfies given shape of prestress distribution.free environment and should not be used in the design of membrane systems without a careful analysis because the existence of experimental variability can have a major impact on the determination of the membrane properties.

In other words, the necessity of a small capacity parameter for the accurateCited by: 2. Introduction A living cell membrane functions as a gateway through which chemical substances and small particles may enter or leave a cell.

These substances move through the membrane by physical processes such as diffusion, osmosis, and filtration, or by physiological processes such as active transport, phagocytosis, or pinocytosis.

An Overview Of Membrane Technology And Theory

The complexity of biological membranes has motivated the development of a wide variety of simpler model systems whose size, geometry, and composition can be tailored with great precision. Approaches highlighted in this review are illustrated in Figure 1 including vesicles, supported bilayers, and hybrid membrane systems.

These have been used to Cited by: [ASSIGNMENT] Prepare an experimental design with pdf to study the influence of extracellular potassium and sodium ion concentration on the membrane potential; include predictions using the Nernst equation to calculate the membrane potential for variable potassium solutions.Large Membrane Roof Analysis: Nonlinear Modeling of Structures, Connectors, and Experimental Evidences This work discusses the numerical and physical models developed for the design of a.The membrane theory of shells, ebook membrane theory for short, describes the mechanical ebook of shells when twisting and bending moments are small enough to be negligible.

The spectacular simplification of membrane theory makes possible the examination of a wide variety of shapes and supports, in particular, tanks and shell roofs.