scholarly journals Sensitivity analysis of production and power consumption to various constructional and operating factors using a computer based simulation conveyor - bin/hopper model

1986 ◽  
Author(s):  
J K Szymanski
Keyword(s):  
Sensitivity Analysis ◽  
Power Consumption ◽  
Computer Based

scholarly journals ANALISA SENSITIVITAS PADA DESAIN AWAL SATELIT MIKRO PENGAMAT BUMI (SENSITIVITY ANALYSIS ON PRELIMINARY DESIGN OF EARTH OBSERVATION MICRO-SATELLITE)

2013 ◽  
Vol 11 (1) ◽  
Author(s):  
Robertus Heru Triharjanto ◽  
Ridanto Eko P ◽  
Hari Muhammad
Keyword(s):  
Sensitivity Analysis ◽  
Power Consumption ◽  
Electrical Power ◽  
Earth Observation ◽  
Design Parameters ◽  
Preliminary Design ◽  
Satellite Mission ◽  
Earth Observation Satellite ◽  
The One ◽  
Multispectral Imager

The paper discuss about the sensitivity analysis on the preliminary design of Earth observation micro-satellite. The objective of the analysis is to evaluate which design parameters affect the satellite performances the most. The satellite type used in this research is the one which weight no more than 100 kg and which dimension can be fitted into auxilary payload alocation in the launch vehicle. The satellite mission chosen in this research is limited to optical-based multispectral imager, and the design phase is at preliminary design, in which some of the constraints are based on empirical data. The result obtained show that image resolusion affect the most on the rate of data to be processed, especially at high resolution, so that it affect the satellite power consumption. Resolution, which is a function of lens dimensions, also effect the satellite’s weight that have to acommodate it. On the other hand, such accomodation affect the satellite’s ability to supply electrical power. Number of spectrum, also affect satellite’s weight and power consumption, but at more moderate level. Keywords: Microsatellite design, Earth observation satellite, Sensitivity analysis

scholarly journals A power consumption sensitivity analysis of circuit-switched versus packet-switched backbone networks

2015 ◽  
Vol 78 ◽  
pp. 42-56 ◽  
Author(s):  
Ward Van Heddeghem ◽  
Filip Idzikowski ◽  
Francesco Musumeci ◽  
Achille Pattavina ◽  
Bart Lannoo ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Power Consumption ◽  
Backbone Networks

Power Profiling the Internet Core

2013 ◽  
pp. 287-308 ◽  
Author(s):  
Aruna Prem Bianzino ◽  
Anand Raju ◽  
Dario Rossi
Keyword(s):  
Sensitivity Analysis ◽  
Power Consumption ◽  
Current Situation ◽  
The Internet ◽  
Power Model ◽  
Power Profiling ◽  
Consumption Model

In this chapter, the authors perform a careful sensitivity analysis of a power model for the Internet core: their results show that, no matter how carefully the data upon which the power-consumption model relies is chosen and cross-verified, the uncertainty of the overall results remains disappointingly high. The authors believe that part of the solution lies in a community-wide effort, to which they offer some initial guidance that could, if not solve the issue, at least greatly improve the current situation.

scholarly journals Data Analysis and Results of the Radiation-Tolerant Collaborative Computer On-Board OPTOS CubeSat

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Alberto Martín-Ortega ◽  
Santiago Rodríguez ◽  
José R. de Mingo ◽  
Sergio Ibarmia ◽  
Joaquín Rivas ◽  
...  
Keyword(s):  
Data Analysis ◽  
Power Consumption ◽  
Real Time ◽  
Space Missions ◽  
Small Satellites ◽  
Unit Level ◽  
Aerospace Technology ◽  
Computer Based ◽  
Commercial Off The Shelf ◽  
Radiation Tolerant

The current evolution of the space missions demands to increase the computing capacities of the on-board computer while reducing its power consumption. This requirement evolves faster than the ability of the manufacturers to develop better space-qualified processors. To meet the strong requirements, the National Institute of Aerospace Technology has developed a distributed on-board computer based on commercial off-the-shelf (COTS). This computer, named OPTOS, provides enhanced computational capacities with respect to what computers of other small satellites typically provide. To maintain the reliability needed to perform typical critical activities such as real-time maintenance or current surveillance, authors have conceived a set of collaborative hardening techniques, taking advantage of the distributed architecture of the OPTOS On-Board Computer. The 3-year mission data analysis shows the feasibility of the collaborative hardening techniques implemented, despite using SEU sensitive devices. The authors describe the processes and tools used to analyse the data and clearly expose the functional errors found at unit level, while the system remains unfaulty and reliable thanks to the collaborative techniques.

Cell morphology, volume, and surface area determinations from multilevel contouring within HVEM micrographs of serial sections and whole-cell mounts

1987 ◽  
Vol 45 ◽  
pp. 588-589
Author(s):  
M. Marko ◽  
A. Leith ◽  
D. Parsons
Keyword(s):  
Surface Area ◽  
Electron Micrographs ◽  
Cell Morphology ◽  
Individual Variation ◽  
Serial Section ◽  
Stereo Pair ◽  
Complex Structures ◽  
Serial Sections ◽  
Surface Areas ◽  
Computer Based

The use of serial sections and computer-based 3-D reconstruction techniques affords an opportunity not only to visualize the shape and distribution of the structures being studied, but also to determine their volumes and surface areas. Up until now, this has been done using serial ultrathin sections.The serial-section approach differs from the stereo logical methods of Weibel in that it is based on the Information from a set of single, complete cells (or organelles) rather than on a random 2-dimensional sampling of a population of cells. Because of this, it can more easily provide absolute values of volume and surface area, especially for highly-complex structures. It also allows study of individual variation among the cells, and study of structures which occur only infrequently.We have developed a system for 3-D reconstruction of objects from stereo-pair electron micrographs of thick specimens.

A hitchhiker’s guide to microscopy and microanalysis using telecommunications, e-mail, and the Internet

1994 ◽  
Vol 52 ◽  
pp. 390-391 ◽  
Author(s):  
Nestor J. Zaluzec
Keyword(s):  
The Internet ◽  
Information Superhighway ◽  
The World ◽  
Exchange Information ◽  
On Line ◽  
Computer Based ◽  
Software And Hardware ◽  
Communication Software ◽  
Basic Ideas ◽  
E Mail

The Information SuperHighway, Email, The Internet, FTP, BBS, Modems, : all buzz words which are becoming more and more routine in our daily life. Confusing terminology? Hopefully it won't be in a few minutes, all you need is to have a handle on a few basic concepts and terms and you will be on-line with the rest of the "telecommunication experts". These terms all refer to some type or aspect of tools associated with a range of computer-based communication software and hardware. They are in fact far less complex than the instruments we use on a day to day basis as microscopist's and microanalyst's. The key is for each of us to know what each is and how to make use of the wealth of information which they can make available to us for the asking. Basically all of these items relate to mechanisms and protocols by which we as scientists can easily exchange information rapidly and efficiently to colleagues in the office down the hall, or half-way around the world using computers and various communications media. The purpose of this tutorial/paper is to outline and demonstrate the basic ideas of some of the major information systems available to all of us today. For the sake of simplicity we will break this presentation down into two distinct (but as we shall see later connected) areas: telecommunications over conventional phone lines, and telecommunications by computer networks. Live tutorial/demonstrations of both procedures will be presented in the Computer Workshop/Software Exchange during the course of the meeting.

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