Databases, Data, and Information
... Multidimensional Databases • An object-oriented database (OODB) stores data in objects • Examples of applications appropriate for an object-oriented database include: Media Groupware database database CAD database Pages 484 - 485 ...
... Multidimensional Databases • An object-oriented database (OODB) stores data in objects • Examples of applications appropriate for an object-oriented database include: Media Groupware database database CAD database Pages 484 - 485 ...
Holografie – lasery
... All lasers produce intense beams of light that are monochromatic, coherent, and highly collimated. The wavelength (color) of the laser light is extremely pure (monochromatic) when compared to other sources of light, and all of the photons (energy) that make up the laser beam have a fixed phase relat ...
... All lasers produce intense beams of light that are monochromatic, coherent, and highly collimated. The wavelength (color) of the laser light is extremely pure (monochromatic) when compared to other sources of light, and all of the photons (energy) that make up the laser beam have a fixed phase relat ...
Data Warehouse Development
... Data warehousing implementation issues – Implementing a data warehouse is generally a massive effort that must be planned and executed according to established methods – There are many facets to the project lifecycle, and no single person can be an expert in each area ...
... Data warehousing implementation issues – Implementing a data warehouse is generally a massive effort that must be planned and executed according to established methods – There are many facets to the project lifecycle, and no single person can be an expert in each area ...
CH05_withFigures
... Data warehousing implementation issues – Implementing a data warehouse is generally a massive effort that must be planned and executed according to established methods – There are many facets to the project lifecycle, and no single person can be an expert in each area ...
... Data warehousing implementation issues – Implementing a data warehouse is generally a massive effort that must be planned and executed according to established methods – There are many facets to the project lifecycle, and no single person can be an expert in each area ...
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sham-intro - Department of Computer Science
... (H.P.), VAX -DBMS (Digital). • Hierarchical Data Model : implemented in a joint effort by IBM and North American Rockwell around 1965. Resulted in the IMS family of systems. The most popular model. Other system based on this model: System 2k (SAS inc.) • Object-oriented Data Model(s) : several model ...
... (H.P.), VAX -DBMS (Digital). • Hierarchical Data Model : implemented in a joint effort by IBM and North American Rockwell around 1965. Resulted in the IMS family of systems. The most popular model. Other system based on this model: System 2k (SAS inc.) • Object-oriented Data Model(s) : several model ...
Optical Springs at the 40m
... Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
... Central part (Michelson, PRC, SRC) signals are extracted from beat between f1 and f2, not including arm cavity information. Optical Springs at the 40m ...
chapter 8: online analytical processing(olap)
... • This is the best solution as far as query response-time is concerned. • This solution is impractical for a large data-cube, since resources required to compute & store the aggregates will be prohibitively large • Indexing large amounts of data is also expensive. 2) Pre-compute(and store) none • Th ...
... • This is the best solution as far as query response-time is concerned. • This solution is impractical for a large data-cube, since resources required to compute & store the aggregates will be prohibitively large • Indexing large amounts of data is also expensive. 2) Pre-compute(and store) none • Th ...
Absorption & Emission
... a is the chromophore area in cm2 The transition probability depends on a number of factors including where the transition is an “allowed” transition or a “forbidden” transition ...
... a is the chromophore area in cm2 The transition probability depends on a number of factors including where the transition is an “allowed” transition or a “forbidden” transition ...
Annual report
... Specific scientific focus of group: The main research domain of the group involved in this project is studying the interaction of powerful ultrashort laser pulses with atomic and molecular systems. We also study by numerical modeling the macroscopic effects caused by the propagation of such laser ...
... Specific scientific focus of group: The main research domain of the group involved in this project is studying the interaction of powerful ultrashort laser pulses with atomic and molecular systems. We also study by numerical modeling the macroscopic effects caused by the propagation of such laser ...
Synchronization of Micromechanical Oscillators Using Light
... mode (fig. 1d). Light coupled to any of these supermodes interacts with both the L and the R cavities and therefore we can choose to pump light only into one of the cavities (through a taper fibre); we choose the R OMO, as shown in the schematic of figure 2a. As light interacts with the R OMO above ...
... mode (fig. 1d). Light coupled to any of these supermodes interacts with both the L and the R cavities and therefore we can choose to pump light only into one of the cavities (through a taper fibre); we choose the R OMO, as shown in the schematic of figure 2a. As light interacts with the R OMO above ...
3D Finite Element Model for Writing Long
... Since the first reports by Davis et al. [13] and Akiyama et al. [14] on the use of a 10.6 µm wavelength laser beam emitted by a CO2 laser, different experimental methodologies have been used to write LPFGs [15]. The most common is, probably, using a static asymmetrical irradiation with a CW CO2 lase ...
... Since the first reports by Davis et al. [13] and Akiyama et al. [14] on the use of a 10.6 µm wavelength laser beam emitted by a CO2 laser, different experimental methodologies have been used to write LPFGs [15]. The most common is, probably, using a static asymmetrical irradiation with a CW CO2 lase ...
Laser Refraction and Diffraction
... (The wavelength of the laser used in this experiment was 632.8 nm) 1. The above figure shows the instrument setup. S1 is the position of the single-slit, double-slit, and diffraction grating; S2 is the observation plane where the diffraction pattern was observed, and z is the distance between S1 and ...
... (The wavelength of the laser used in this experiment was 632.8 nm) 1. The above figure shows the instrument setup. S1 is the position of the single-slit, double-slit, and diffraction grating; S2 is the observation plane where the diffraction pattern was observed, and z is the distance between S1 and ...
Nano-optomechanical Actuator and Pull-Back Instability
... low cost. However, the microscale dimensions limit both the speed and precision of actuation. Nanoelectromechanical systems (NEMS) scale down the dimensions.7,8 In particular, NEMS employing electrostatic forces have been developed.9,10 For parallel-plate electrostatic actuators, the pull-in instabi ...
... low cost. However, the microscale dimensions limit both the speed and precision of actuation. Nanoelectromechanical systems (NEMS) scale down the dimensions.7,8 In particular, NEMS employing electrostatic forces have been developed.9,10 For parallel-plate electrostatic actuators, the pull-in instabi ...
MEMS for micro optics: from fiber optic communication to display
... assembly thanks to the optical pre-aligning or self-aligning capability. In particular, we take an example of MEMS variable optical attenuator (VOA) that we have commercially released in cooperation with an industrial partner. Besides fiber optic MEMS, we also mention other applications such as proj ...
... assembly thanks to the optical pre-aligning or self-aligning capability. In particular, we take an example of MEMS variable optical attenuator (VOA) that we have commercially released in cooperation with an industrial partner. Besides fiber optic MEMS, we also mention other applications such as proj ...
safety data sheet - Ideal Industries
... Unsuitable extinguishing media: No data available. Specific hazards arising from the chemical: None expected. Combustion products - Oxides of carbon, nitrogen and silicone. Special protective equipment and precautions for fire-fighters: For fire involving this material, do not enter any enclosed or ...
... Unsuitable extinguishing media: No data available. Specific hazards arising from the chemical: None expected. Combustion products - Oxides of carbon, nitrogen and silicone. Special protective equipment and precautions for fire-fighters: For fire involving this material, do not enter any enclosed or ...
EEE440 Modern Communication Systems Optical Fibre
... The higher order modes are absent. Consequently, there is no energy lost to heat by having these modes leak into the cladding. Attenuation is not significant. Also, since the input signal is confined to a single ray path, that of the lowest order mode, there is little time dispersion Less time dispe ...
... The higher order modes are absent. Consequently, there is no energy lost to heat by having these modes leak into the cladding. Attenuation is not significant. Also, since the input signal is confined to a single ray path, that of the lowest order mode, there is little time dispersion Less time dispe ...
Technical Information on Optics
... chromatic aberrations, which cause different magnifications for different wavelengths. Coherence The constancy of phase relations between two waves. There are two types of coherence: temporal and spatial coherence. Coherence length The greatest optical path difference between two partial waves from ...
... chromatic aberrations, which cause different magnifications for different wavelengths. Coherence The constancy of phase relations between two waves. There are two types of coherence: temporal and spatial coherence. Coherence length The greatest optical path difference between two partial waves from ...
Laser ranging: a critical review of usual techniques
... onto an object and to process the reflected or scattered signal to determine the distance. If a high resolution rangefinder is needed, an optical source must be chosen because radio and ultrasonic waves cannot be focused adequately. In addition to absolute distance measurement, laser rangefinding de ...
... onto an object and to process the reflected or scattered signal to determine the distance. If a high resolution rangefinder is needed, an optical source must be chosen because radio and ultrasonic waves cannot be focused adequately. In addition to absolute distance measurement, laser rangefinding de ...
Vol. 26. Is. 5 - Society for Experimental Mechanics
... measurements, meaning that the devices shown appear in one form or another in all interferometry setups. Since the waves in the two paths must be able to interfere, they must come from a common source. A divider or beam splitter separates the two waves, and the waves travel along different paths, on ...
... measurements, meaning that the devices shown appear in one form or another in all interferometry setups. Since the waves in the two paths must be able to interfere, they must come from a common source. A divider or beam splitter separates the two waves, and the waves travel along different paths, on ...
Understanding Big Data
... The size of the Hadoop market in itself distinguishes this sector from other processing methods for Big Data Analytics. In recent years, it has become a central focus for discussion, and it has spawned an ecosystem that now includes both open source and proprietary solutions, as well as methods for ...
... The size of the Hadoop market in itself distinguishes this sector from other processing methods for Big Data Analytics. In recent years, it has become a central focus for discussion, and it has spawned an ecosystem that now includes both open source and proprietary solutions, as well as methods for ...
Introduction - Research
... unfavorable method because it forces cells to contract at a set length, which maybe more or less than the contraction range of the individual cell. Our design team, with the help of Dr. Franz Baudenbacher and several graduate students, is hoping to develop a less complicated and more accurate method ...
... unfavorable method because it forces cells to contract at a set length, which maybe more or less than the contraction range of the individual cell. Our design team, with the help of Dr. Franz Baudenbacher and several graduate students, is hoping to develop a less complicated and more accurate method ...
3D optical data storage
3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".