Radiation Concordance
Radiation
Section titled “Radiation”Concordance status: generated from processed OCR/PDF text. Treat these as source-location aids until each passage is checked against the scan.
931 hits
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11 sources
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34 sections
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Matched Aliases
Section titled “Matched Aliases”Radiation, radiant energy, radiation, radiations
Source Distribution
Section titled “Source Distribution”| Source | Hits | Sections |
|---|---|---|
| Radiation, Light and Illumination | 785 | 13 |
| General Lectures on Electrical Engineering | 85 | 1 |
| Theory and Calculation of Transient Electric Phenomena and Oscillations | 36 | 8 |
| Theory and Calculation of Electric Circuits | 7 | 2 |
| Engineering Mathematics: A Series of Lectures Delivered at Union College | 5 | 2 |
| Four Lectures on Relativity and Space | 5 | 2 |
| Theory and Calculation of Alternating Current Phenomena | 3 | 2 |
| Theoretical Elements of Electrical Engineering | 2 | 1 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 1 | 1 |
| Theory and Calculation of Electric Apparatus | 1 | 1 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 1 | 1 |
Section Hits
Section titled “Section Hits”Representative Source Snippets
Section titled “Representative Source Snippets”Lecture 5: Temperature Radiation - 233 hit(s)
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LECTURE V. TEMPERATURE RADIATION. 34. The most common method of producing radiation is by impressing heat energy upon a body and thereby raising its tem- perature. Up to a short time ago this was the only method avail- able for the production of artificial light. The temperature is rai ...Lecture 3: Physiological Effects Of Radiation - 105 hit(s)
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LECTURE III. PHYSIOLOGICAL EFFECTS OF RADIATION. Visibility. 20. The most important physiological effect is the visibility of the narrow range of radiation, of less than one octave, between wave length 76 X 10~6 and 39 X 1Q-6. The range of intensity of illumination, over which the eye can see with ...Lecture 2: Relation Of Bodies To Radiation - 89 hit(s)
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LECTURE II. RELATION OF BODIES TO RADIATION. 9. For convenience, the total range of known radiations can be divided into two classes, the electric waves and the light waves, which are separated from each other by the blank space in the middle of the spectrum of radiation (Fig. 14). Under light wa ...Lecture 17: Arc Lighting - 85 hit(s)
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... to do any more strictly with a problem of physics, but that we are on .the borderland between applied physics, that is engineering, and physiology. Light is not a physical quantity, but it is the physiological effeot exerted upon the human eye by certain radiations. There are different forms of energy, all convertible into each other, as magnetic energy, electric energy, heat energy, mechanical momentum, radiating energy, etc. The latter, radi- ating energy, is a vibratory motion of a hypothetical medium, the ethe ...Lecture 1: Nature And Different Forms Of Radiation - 84 hit(s)
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LECTURE I. NATURE AND DIFFERENT FORMS OF RADIATION. 1. Radiation is a form of energy, and, as such, can be produced from other forms of energy and converted into other forms of energy. The most convenient form of energy for the production of rad- iation is heat energy, and radiation when destroyed by b ...Lecture 9: Measurement Of Light And Radiation - 70 hit(s)
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LECTURE IX. MEASUREMENT OF LIGHT AND RADIATION. 74. Since radiation is energy, it can be measured as such by converting the energy of radiation into some other form of energy, as, for instance, into heat, and measuring the latter. Thus a beam of radiation may be measured by having it impinge on one ...Lecture 6: Luminescence - 59 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- nomena of fluorescence and phosphorescence, r ...Lecture 4: Chemical And Physical Effects Of Radiation - 49 hit(s)
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LECTURE IV. CHEMICAL AND PHYSICAL EFFECTS OF RADIATION. Chemical Effects. 31. Where intense radiation is intercepted by a body chemical action may result by the heat energy into which the radiation is converted. This, however, is not a direct chemical effect of radiation but an indirect effect, resulting f ...Lecture 10: Light Flux And Distribution - 24 hit(s)
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LECTURE X. LIGHT FLUX AND DISTRIBUTION. 86. The light flux of an illuminant is its total radiation power, in physiological measure. It therefore is the useful output of the illuminant, and the efficiency of an illuminant thus is the ratio of the total light flux divided by the power input. In general, the distribution of the light flux throughout spa ...Lecture 7: Flames As Illuminants - 23 hit(s)
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LECTURE VII. FLAMES AS ILLUMINANTS. 56. Two main classes of illuminants exist: those producing radiation by the conversion of the chemical energy of com- bustion— the flames — and those deriving the energy of radia- tion from electric energy — the incandescent lamp and the arc lamp, and other less frequently used electric illuminants. Flames. To produce l ...Chapter 9: High-Frequency Conductors - 21 hit(s)
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... sistance and induc- tance. In conductors such as are used in the connections and the discharge path of lightning arresters and surge protectors, the unequal current distribution in the conductor (Chapter VII) and the power and voltage consumed by electric radiation, due to the finite velocity of the electric field (Chapter VIII), require con- sideration. The true ohmic resistance in high frequency conductors is usually entirely negligible compared with the effective resistance resulting from the unequal current di ...Lecture 8: Arc Lamps And Arc Lighting - 18 hit(s)
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... 0 10 I.fi6 0[5 25 1 0 FIG. 45. arc length, I, we get tor every value of current, i, a practically straight line, as shown for the magnetite arc in Fig. 45, for values of current of 1, 2, 4 and 8 amperes. These lines are steeper 137 138 RADIATION, LIGHT, AND ILLUMINATION. for smaller currents, that is, low-current arcs consume a higher voltage for the same length than high-current arcs, the in- crease being greater the longer the arc. These lines in Fig. 45 intersect in a point which lies at I = ...Lecture 11: Light Intensity And Illumination - 14 hit(s)
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... l illumination is l 7 cos and the vertical illumination is . 7 cos2 <f> sin (4) (5) (6) (7) (8) where 7 is the intensity of the light source in the direc- tion <j>. Inversely, to produce a uniform total illumination, i0, on the 228 RADIATION, LIGHT, AND ILLUMINATION. horizontal plane P, the intensity of the light source must vary with the angle </> according to the equation (6) : 7" 1 2 (9) or, if we denote by 70 the vertical, or downward, intensity of the light source, A, - V,2; (10) ...Lecture 12: Illumination And Illuminating Engineering - 11 hit(s)
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... ities with which we have to deal in illumi- nating engineering thus are : The intensity of the light source or the illuminant, and its brilliancy, that is, the flux density at the surface of the illuminant; The flux of light, that is, the total visible radiation issuing from the illuminant; 256 ILLUMINATION AND ILLUMINATING ENGINEERING. 257 The light flux density, that is, the distribution of the light flux in space, and The illumination, that is, the light flux density issuing from the illuminated object ...Lecture 13: Physiological Problems Of Illuminating Engineering - 6 hit(s)
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... xists to fail in their fulfillment, though it is frequently done. Such, for instance, is the requirement of low intrinsic brilliancy in the field of vision, of the color of the light, etc. Other physiological requirements are still very little 277 278 RADIATION, LIGHT, AND ILLUMINATION. understood or entirely unknown, while on others not sufficient quantitative data are available for exact engineering calculation. Thus, for instance, the usual suburban street illumination, with arcs spaced at considerable dist ...Chapter 9: Inductive Discharges - 5 hit(s)
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... les and transmission lines 103, 105 power surge of low-frequency 105 stray field and starting current of transformer 189 Impact angle at transition point of wave 527 Impedance of conductor at high frequency 407 effective high frequency 408, 413 of radiation 396 traveling wave 460 Inductance and shunted capacity suppressing pulsations in direct-cur- rent circuit 134 effective, of radiation 394 energy of complex circuit 515 in telephone lines 455, 462 massed, in circuit 537 of conductor without retu ...Chapter 6: Empirical Curves - 4 hit(s)
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... 5r4xl0-i^ that is, the power input varies with the fourth power of the resistance. Assuming the resistance r as proportional to the absolute temperature T, and considering that the power input into the lamp is radiated from it, that is, is the power of radiation P^, the equation between p and r also is the equation between P^ and T, thus, P, = A:T4; that is, the radiation is proportional to the fourth power of the absolute temperature. This is the law of black body radiation, and above equation of the volt-am ...Chapter 2: Electric Conduction. Gas And Vapor - 4 hit(s)
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... conduc- tion, decreases with increase of temperature, for a 13-mm. gap about as shown by curve I in Fig. 18. The voltage required to maintain an arc, that is, the direct-current voltage, increases with increasing arc temperature, and therefore increasing radiation, etc., about as shown by curve II in Fig. 18. As seen, the curves I and II intersect at some very high temperature, and materials as carbon, which have a boiling point above this temperature. ELECTRIC CONDUCTION 33 require a lower voltage for rest ...