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Full-Text Articles in Entire DC Network
Physics, Chapter 17: The Phases Of Matter, Henry Semat, Robert Katz
Physics, Chapter 17: The Phases Of Matter, Henry Semat, Robert Katz
Robert Katz Publications
A substance which has a definite chemical composition can exist in one or more phases, such as the vapor phase, the liquid phase, or the solid phase. When two or more such phases are in equilibrium at any given temperature and pressure, there are always surfaces of separation between the two phases.
In the solid phase a pure substance generally exhibits a well-defined crystal structure in which the atoms or molecules of the substance are arranged in a repetitive lattice. Many substances are known to exist in several different solid phases at different conditions of temperature and pressure. These …
Physics, Chapter 15: Heat And Work, Henry Semat, Robert Katz
Physics, Chapter 15: Heat And Work, Henry Semat, Robert Katz
Robert Katz Publications
Until about 1750 the concepts of heat and temperature were not clearly distinguished. The two concepts were thought to be equivalent in the sense that bodies at equal temperatures were thought to "contain" equal amounts of heat. Joseph Black (1728-1799) was the first to make a clear distinction between heat and temperature. Black believed that heat was a form of matter, which subsequently came to be called caloric, and that the change in temperature of a body when caloric was added to it was associated with a property of the body which he called the capacity. Later investigators endowed caloric …
Physics, Appendix C, Henry Semat, Robert Katz
Physics, Appendix C, Henry Semat, Robert Katz
Robert Katz Publications
Appendix C: Answers to Odd-Numbered Problems
Physics, Appendix A, Henry Semat, Robert Katz
Physics, Chapter 46: Nuclear Reactions, Henry Semat, Robert Katz
Physics, Chapter 46: Nuclear Reactions, Henry Semat, Robert Katz
Robert Katz Publications
One of the most important developments of twentieth-century physics was the formulation of the special theory of relativity. This theory was an outgrowth of the failure of all attempts to show that the motion of the source of light relative to the observer had any effect on the speed of light. It is impossible to account for these experimental findings of Michelson and Morley, and others, on the basis of classical mechanics and electromagnetic theory. In 1905, Albert Einstein put forth the suggestion that all experimental findings would be clarified if it were assumed that the speed of light is …
Physics, Chapter 44: Stable Nuclei, Henry Semat, Robert Katz
Physics, Chapter 44: Stable Nuclei, Henry Semat, Robert Katz
Robert Katz Publications
Atomic and nuclear physics are essentially twentieth-century developments, although these had their origins at the close of the nineteenth century. These developments followed two parallel streams, as shown in Figure 44-1, one dealing with the electronic structure of the atom and the other dealing with its nuclear structure. These two streams served to feed each other and were fed by all other branches of physics, but only a few of the more important contributions concerning the nature of radiation, matter, and energy are shown in the figure.
Physics, Chapter 43: X-Rays, Henry Semat, Robert Katz
Physics, Chapter 43: X-Rays, Henry Semat, Robert Katz
Robert Katz Publications
The study of the electric discharge through gases led directly to the discovery of x-rays by W. C. Roentgen in 1895. While operating a gas discharge tube, Roentgen observed that a platinum-barium cyanide screen at some distance from the tube fluoresced. He shielded the tube so that no visible radiation could reach the screen, but the fluorescence could still be observed. On interposing various materials between the tube and the screen, he found that the intensity of the fluorescence could be diminished, but that it was not completely obliterated. He interpreted these observations as being due to radiation coming from …
Physics, Chapter 42: Optical Spectra And Atomic Structure, Henry Semat, Robert Katz
Physics, Chapter 42: Optical Spectra And Atomic Structure, Henry Semat, Robert Katz
Robert Katz Publications
When light passes through a prism spectroscope or a diffraction-grating spectroscope, an optical spectrum is obtained in which the intensity of the radiation may be analyzed as a function of wavelength. The spectrum may be observed visually in the limited wavelength region to which the eye is sensitive; it may be focused on a photographic plate or upon a thermocouple or thermopile. Our knowledge of the structure of atoms and molecules is largely dependent upon the analyses of optical spectra, for these spectra are characteristic of the emitting atoms or molecules. Even before the spectra of atoms were properly understood …
Physics, Chapter 41: Polarized Light, Henry Semat, Robert Katz
Physics, Chapter 41: Polarized Light, Henry Semat, Robert Katz
Robert Katz Publications
The phenomena of interference and diffraction show that light is propagated as a wave motion, but they do not show whether light is a longitudinal wave or a transverse wave. The fact that the velocity of light is the same as the velocity of radio waves and the radiation of visible light from accelerated electrons, as in a betatron, indicates that light is an electromagnetic wave. We recall from Section 20-9 that a wave can be shown to be transverse if a device can be found which will prevent passage of the wave in one orientation and will allow the …
Physics, Chapter 40: Light As A Wave Motion, Henry Semat, Robert Katz
Physics, Chapter 40: Light As A Wave Motion, Henry Semat, Robert Katz
Robert Katz Publications
Let us recount some of the characteristics of the motion of particles and the propagation of waves, with a view toward analyzing the behavior of light. In accordance with Newton's first law, a particle moves in a straight-line path in the absence of external forces. Thus we might infer, as Newton suggested, that light is composed of particles, and that, in a continuous medium, there is no deflecting force on the light particles. At the interface between two media, light may be propagated in a straight line parallel to the interface. Thus even at an interface there is no force …
Physics, Chapter 38: Mirrors And Lenses, Henry Semat, Robert Katz
Physics, Chapter 38: Mirrors And Lenses, Henry Semat, Robert Katz
Robert Katz Publications
A spherical mirror consists of a small section of the surface of a sphere with one side of the surface covered with a polished reflecting material, usually silver or aluminum. If the outside, or convex surface, is silvered, we have a convex mirror; if the inside, or concave surface, is silvered, we have a concave mirror, as shown in Figure 38-1. Most mirrors used commercially are made of glass, with the rear surface silvered and then coated with a layer of paint or lacquer for protection. Mirrors for astronomical telescopes (')f other accurate scientific work are provided with a reflective …
Physics [Complete Work], Henry Semat, Robert Katz
Physics [Complete Work], Henry Semat, Robert Katz
Robert Katz Publications
This book is intended for students of science and engineering; it aims to develop both an understanding of the important concepts of physics and some analytical skill in the solutions of problems. The mathematical level of the book is such that it may be used by students who are taking a course in calculus concurrently.
The notations and methods of the calculus are introduced early in the text, beginning with the concept of a derivative in the discussion of motion, and are then extended to more complex problems as the student progresses both in physics and in mathematics. Vector algebra …
A Kinetic Study Of The Base Catalyzed Esterification Of Acetic Anhydride With Ethyl Alcohol Using A High Frequency Oscillometer, William E. Lowery
A Kinetic Study Of The Base Catalyzed Esterification Of Acetic Anhydride With Ethyl Alcohol Using A High Frequency Oscillometer, William E. Lowery
University of the Pacific Theses and Dissertations
It is the purpose of this investigation to determine the feasibility of using a 120 megacycle oscillometer for kinetic studies in non-aqueous solutions by studying the reaction rate of the base catalyzed esterification of acetic anhydride.
Separation Of Fission Products From Irradiated Uranium By Peroxide Precipitation, John E. Cobb
Separation Of Fission Products From Irradiated Uranium By Peroxide Precipitation, John E. Cobb
University of the Pacific Theses and Dissertations
Aqueous precipitation of uranium as the peroxide has been used as a purification procedure since the early days of the Manhattan Project. The procedure has successfully produced an extremely pure product when handled in small batches. Heretofore peroxide precipitation has been utilized for relatively pure fuel from gaseous diffusion plants or in purifying column extraction products from salvage processes. A search of the unclassified literature had rendered no information upon the feasibility of separating fission products and fuel cladding materials by selective precipitation of uranium peroxide.
The primary objective of this research was to produce a uranium oxide which is …
Reactions Of Carbonyl Compounds With Amberlite Ir-45, Nathaniel Joseph Lane Jr.
Reactions Of Carbonyl Compounds With Amberlite Ir-45, Nathaniel Joseph Lane Jr.
University of the Pacific Theses and Dissertations
It is the purpose of this thesis to explore the experimental relationships which exist between Amberlite IR-45 and various carbonyl compounds with the hope that the knowledge obtained may ultimately form the basis of a new separation technique.
A Study Of Attitudes Influencing Indonesian Seventh-Day Adventist Youth To Enter Nursing, Wilma L. Leazer
A Study Of Attitudes Influencing Indonesian Seventh-Day Adventist Youth To Enter Nursing, Wilma L. Leazer
Loma Linda University Electronic Theses, Dissertations & Projects
In this study a survey was made of the attitudes of Indonesian Seventh-day Adventists toward nursing. This was done for the purpose of discovering why there is a shortage of women applicants to the Seventh-day Adventist nursing school in Bandung, Java. The study was accomplished through the use of questionnaires administered to four selected groups in two geographic areas of Indonesia, and revealed attitudes of two adult groups and two student group. One hundred and twenty-one persons responded to the questionnaires.
The survey indicated that Indonesian Seventh-day Adventists seem to be highly enthusiastic about nursing and believe it is a …
A Proposal For Emphasizing Modern Mathematics In Elementary Algebra, Betty Sayre Grubb
A Proposal For Emphasizing Modern Mathematics In Elementary Algebra, Betty Sayre Grubb
Dissertations and Theses @ UNI
For the past fifty years educators and mathematicians have urged that we change our approach to mathematics. The need for change or modernization of teaching mathematics is at least as great now as it ever was. The body of mathematical content vital to the pursuit of both pure and applied mathematics is growing continually. At the same time the demand for people trained in mathematics, including its newer developments, is growing. The only solution would appear to be the integration of these new ideas, as extensively as possible by each teacher, into all levels of training in mathematics. This thesis …
The Fishery Of An Alkaline Sandhill Lake, Nebraska, D. B. Mccarraher
The Fishery Of An Alkaline Sandhill Lake, Nebraska, D. B. Mccarraher
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The sandhill region of Nebraska is a plains regions that has been excessively modified by the force of wind. It is an area of partially changed environment through wind action, an area of dune sandhills, sandy basins and valleys, exposed ground water lakes and marshes, and possessing little surface runoff.
Local Connectedness In The Stone-Cech Compactification, Melvin Henriksen, John R. Isbell
Local Connectedness In The Stone-Cech Compactification, Melvin Henriksen, John R. Isbell
All HMC Faculty Publications and Research
This is a study of when and where the Stone-Čech compactification of a completely regular space may be locally connected. As to when, Banaschewski [1] has given strong necessary conditions for βX to be locally connected, and Wallace [19] has given necessary and sufficient conditions in case X is normal. We show below that Banaschewski's necessary conditions are also sufficient and may be restated as follows: βX is locally connected if and only if X is locally connected and pseudo-compact (Corollary 2.5). Moreover, the requirement that βX be locally connected is so strong that it implies that every completely regular …
Adsorption Studies Of Organic Compounds On The Hydrogen Electrode Using A Microcoulometric Technique, Philip Lamar Oglesby
Adsorption Studies Of Organic Compounds On The Hydrogen Electrode Using A Microcoulometric Technique, Philip Lamar Oglesby
Master's Theses
This work was concerned with the adsorption of various organic compounds and their effect on the hydrogen electrode where adsorption is defined as the accumulation of a chemical substance at the boundary separating two phases. In this case, the two phases were the electrode and the ionic solution surrounding it.
The Monadnock Volume 32, Number 1, December 1957, Clark University Geographical Society
The Monadnock Volume 32, Number 1, December 1957, Clark University Geographical Society
The Monadnock (Clark Geographical Society)
Volume 32, Issue 1 of The Monadnock. The Monadnock was the alumni magazine of the Clark University Geographical Society (1927-1985) (2014-present).
Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed
Nebraska Groundwater Level (Decline & Rise) As Of December 1957., E. C. Reed
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Effect Of Change In Moment Of Inertia On The Intensity Distribution In P And R Branches Of C OoV Molecules, Gordon A. Gallup
Effect Of Change In Moment Of Inertia On The Intensity Distribution In P And R Branches Of C OoV Molecules, Gordon A. Gallup
Gordon Gallup Publications
The effect of the change in moment of inertia part of the interaction between vibration and rotation on the intensities of parallel bands of linear polyatomic molecules has been determined to the first order. The results are quite similar to those of Herman and Wallis for diatomic molecules. The interaction term depends on among others a quantity, ξ k, different in general for each band. Perpendicular bands do not show a first-order correction. A ``sum rule'' for the ξ k has been determined.
Test 636: Allis-Chalmers D-17 Diesel, Nebraska Tractor Test Lab
Test 636: Allis-Chalmers D-17 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: ALLIS-CHALMERS D-17 DIESEL TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …
Test 630: International Td-24 Diesel, Nebraska Tractor Test Lab
Test 630: International Td-24 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: INTERNATIONAL TD-24 DIESEL TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …
Test 634: International 330 Utility Gasoline, Nebraska Tractor Test Lab
Test 634: International 330 Utility Gasoline, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: INTERNATIONAL 330 UTILITY GASOLINE TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS …
Test 635: Allis-Chalmers D-17 Gasoline, Nebraska Tractor Test Lab
Test 635: Allis-Chalmers D-17 Gasoline, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: ALLIS-CHALMERS D-17 GASOLINE TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …
Test 626: Ford 850-L, Nebraska Tractor Test Lab
Test 626: Ford 850-L, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: FORD 850-L TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST B: …
Test 631: Wagner Tr-9 Diesel, Nebraska Tractor Test Lab
Test 631: Wagner Tr-9 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: WAGNER TR-9 DIESEL TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …
Test 629: International Td-18 Diesel, Nebraska Tractor Test Lab
Test 629: International Td-18 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: INTERNATIONAL TD-18 DIESEL TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …