Luminescence Concordance
Luminescence
Section titled “Luminescence”Concordance status: generated from processed OCR/PDF text. Treat these as source-location aids until each passage is checked against the scan.
77 hits
Total text matches across processed Steinmetz sections.
3 sources
Sources containing at least one matched alias.
7 sections
Chapters, lectures, sections, or report divisions with matches.
Matched Aliases
Section titled “Matched Aliases”Luminescence, luminescence
Source Distribution
Section titled “Source Distribution”| Source | Hits | Sections |
|---|---|---|
| Radiation, Light and Illumination | 72 | 4 |
| Theory and Calculation of Electric Circuits | 4 | 2 |
| General Lectures on Electrical Engineering | 1 | 1 |
Section Hits
Section titled “Section Hits”| Section | Source | Hits | Workbench | Location |
|---|---|---|---|---|
| Lecture 6: Luminescence | Radiation, Light and Illumination | 47 | Workbench | lines 5077-6608 |
| Lecture 5: Temperature Radiation | Radiation, Light and Illumination | 17 | Workbench | lines 3946-5076 |
| Lecture 7: Flames As Illuminants | Radiation, Light and Illumination | 5 | Workbench | lines 6609-7140 |
| Lecture 4: Chemical And Physical Effects Of Radiation | Radiation, Light and Illumination | 3 | Workbench | lines 3639-3945 |
| Chapter 2: Electric Conduction. Gas And Vapor | Theory and Calculation of Electric Circuits | 3 | Workbench | lines 3895-5444 |
| Lecture 16: The Incandescent Lamp | General Lectures on Electrical Engineering | 1 | Workbench | lines 9687-9919 |
| Chapter 18: Oscillating Currents | Theory and Calculation of Electric Circuits | 1 | Workbench | lines 31657-33200 |
Representative Source Snippets
Section titled “Representative Source Snippets”Lecture 6: Luminescence - 47 hit(s)
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LECTURE VI. LUMINESCENCE. 43. All methods of producing radiation, and more particularly light, other than the temperature radiation or incandescence, are generally comprised by the name luminescence. Some special cases of luminescence have already been discussed in the phe- nom ...Lecture 5: Temperature Radiation - 17 hit(s)
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... etc. A number of types of such visual pyrometers have been devel- oped, and are very convenient. Their limitation, obviously, is that they apply only when the radiation is normal temperature radiation, but give wrong results where colored radiation or luminescence is present. Thus the FIG. 30. radiation given by the interior of a closed body of uniform tem- perature ceases to be black body radiation if the interior is filled with luminous vapors, as is frequently the case in the interior of electric furnaces. F ...Lecture 7: Flames As Illuminants - 5 hit(s)
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... of acetylene is higher than that of other hydrocarbons of the same relative propor- tions of hydrogen and carbon: acetylene being endothermic, that is, requiring energy for its formation from the elements. 59. Since, as discussed in Lecture VI, chemical luminescence usually occurs where intense chemical reactions take place at high temperatures, — and this is the case in the flame, — chemical luminescence of the flame gases must be expected in the hydro- carbon flame. It does occur, but does not contribute anything ...Lecture 4: Chemical And Physical Effects Of Radiation - 3 hit(s)
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... thus showing the effect of the temperature rise in increas- ing phosphorescence. These substances which I show you, calcium sulphide, cal- cium carbonate (calcite), zinc silicate (willemite), are not fluo- rescent or phosphorescent themselves, but their luminescence is due to a small percentage of some impurities contained in them. Chemically pure substances and concentrated solutions of the aniline dyes, or these dyes in their solid form, do not show the luminescence, but only when in very diluted solutions; that is ...Chapter 2: Electric Conduction. Gas And Vapor - 3 hit(s)
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... Gas, Vapor and Vacuum Conduction 18. As further, and last class may be considered vapor, gas and vacuum conduction. Typical of this is, that the volt-ampere characteristic is dropping, that is, the voltage decreases with in- crease of current, and that luminescence accompanies the con- duction, that is, conversion of electric energy into light. Thus, gas and vapor conductors are unstable on constant- potential supply, but stable on constant current. On constant potential they require a series resistance or reactanc ...Lecture 16: The Incandescent Lamp - 1 hit(s)
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... reason, 220 volt distribution has never found any entrance in this country. In gas lighting, an enormous increase of efficiency resulted from the development of the Welsbach gas mantle. In the same direction, that is, by using what may be called *'heat luminescence" in electric lighting, the Nernst lamp was developed, using the same class of material : refractory metal- lic oxides, as in the Welsbach mantle. The "glower" of the Nernst lamp, however, is a non-conductor at ordinary tempera- ture, and requires some hea ...Chapter 18: Oscillating Currents - 1 hit(s)
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... s, 217 reducing wave distortion, 145 Leaky conductor, 330, 332, 336 Load balance of polyphase system, 314 character determining stability in induction motor, 205 Loop of hysteresis, 56 Loss, percentage, in magnetic cycle, 60 Loxodromic spiral, 345 Luminescence in gas and vapor con- duction, 28 Luminous streak conduction in pyro- electric conductor, 18 M Magnetic circuits of induction motor, 228 elements, 77 friction, 56 mechanical forces, 107 Magnetism, 43 tables and data, 87, 88 wave distortion ...