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X ray study on thermal properties of ball milled metal nanopowders

X ray study on thermal properties of ball milled metal nanopowders

Jithender Ladal

LAP Lambert Academic Publishing
2019
pokkari
This book focuses on the scientific research work in the field of solid state physics which was carried out in the physics laboratory of Kakatiya University (where the author has been working as a researcher cum faculty member) from the period 2008 to 2013. This book gives total information regarding the X-ray study on thermal properties such as Debye temperature, Debye-Waller factor, amplitude of vibrations and vacancy formation energy while focusing on ball milled copper, nickel, iron and chromium metal nanopowders. The X-ray diffraction technique has been adopted to determine the above said thermal properties.
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The Collected Stories of Upendrakishore Ray Chowdhury

The Collected Stories of Upendrakishore Ray Chowdhury

UPENDRAKISHORE RAY CHOWDHURY

Aleph Book Company
2023
nidottu
The Collected Stories of Upendrakishore Ray Chowdhury is a selection of sixty-three stories by a master storyteller (1863-1915). Featuring a vibrant cast of characters-eccentric woodland animals, a motley crew of unusual villagers and townspeople, bewildering ghosts, competitive demons, and gods from Norway and Japan-these stories laced with rib-tickling humour, clever puns, and bizarre situations have entertained young readers for generations. 'Tuntunir Boi', the first book in the collection, has twenty-seven stories. These include adventure yarns of the author's most popular characters like the mischievous tailor bird Tuntuni, the crafty fox Sheyal, the arrogant feline Mawjontali Sarkar, and the fearless farmer Buddhu's Baap. The second book, 'Golpomala', includes some beloved gems-stories of Gupi the singer and Bagha the instrumentalist; of Ghyanghashur, a half-bird, half-beast; of the Japanese gods Izanagi and Izanami; and of a sailor's extraordinary sea voyage-tales that feature fantastical characters, magical lands, and exhilarating adventures. Vividly translated by Lopamudra Maitra and sprinkled with illustrations by the author, the stories in this volume will charm and delight readers of all ages.
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Satyajit Ray

Satyajit Ray

Gaston Roberge

Manohar Publishers and Distributors
2023
sidottu
The essays offered here were written between 1970 and 2005. They were not written with the view to form a book. They are now published together in the conviction that, both singly and as a whole, they can contribute to a better appreciation of Satyajit Ray’s legacy. The essays deal with Ray as a filmmaker. The date on which each essay was written is indicated as it situates each in the cultural context in which it was conceived. Out of the twenty-nine feature films of Ray, only eight, plus the Apu Trilogy as a whole, are discussed. Moreover, this small collection is not a selection, indicating preferences; nor is it a classification, rating the films. The discussion of Jana Aranya is the only essay that was written for this book to illuminate the evolution that took place from the first to the last film of Satyajit Ray. In order to preserve their historical historical, generally, the essays have not been updated. Given Ray’s deep involvement in film education, especially in the film societies movement in India,
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WoMan Ray

WoMan Ray

Walter Guadagnini; Giangavino Pazzola

Silvana
2019
nidottu
Man Ray, surrealist master and exponent of the Dada movement, managed to reinvent not only the photographic language, but also the representation of the body and face, as well as the genres of the nude and the portrait themselves. This book brings together around 200 photographs produced from the 1920s right up to his death in 1976, all featuring female subjects.Through rayographs, solarisations and double exposures, the female body undergoes a continual metamorphosis of forms and meanings, becoming an abstract form, an object of seduction, classical memory or realistic portrait, in endless playful and refined variations. Among the protagonists of his shots are Lee Miller, Berenice Abbott, Dora Maar and Juliet, a lifelong companion, to whom is dedicated the amazing The Fifty Faces of Juliet portfolio (1943-1944). But these women were, in turn, great artists: as evidence is presented here a corpus of works dating back to the time - between the 1930s and '40s - of their most direct association with Man Ray and with the environment of the Dada avant-garde and Parisian surrealism. This volume offers a wide survey of one of the most exuberant periods of the 20th century, with authentic masterpieces of photographic art such as the Electricité portfolios (1931) and the very rare Les mannequins. Résurrection des mannequins (1938). Text in English and Italian.
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Man Ray

Man Ray

SILVANA
2023
nidottu
Man Ray (1890-1976) occupies a prominent place in 20th century art history. A versatile artist, he was a pioneer of modern art. His polymorphic work crosses all fields visuals: photography, assemblage, sculpture, painting, drawing, film... Man Ray arrived from New York in Paris in July 1921. Born in Philadelphia in 1890, of Jewish parents of Russian origin, Emmanuel Radintsky took a two-syllable pseudonym: “Man”, man (short for Manny, his childhood nickname) and “Ray”, the ray of light. Painter, draftsman, assembler of objects, in New York he frequents intellectual and artistic circles, discovers the European avant-gardes with his first wife who makes him discover French literature... He became friends with Marcel Duchamp, with whom he collaborates for artistic creations. This friendship will last all their lives. In connection with the movement European Dada, they publish the only issue of New York Dada, which attracted very little attention. Disappointed and disillusioned, Man Ray concludes that “Dada cannot live in New York”. He only has one objective: to join Duchamp who has just returned to Paris...
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Man Ray

Man Ray

Marco Franciolli

Skira
2011
sidottu
This is an exciting monograph dedicated to an extraordinary figure and one of last century's most famous and influential artists. Man Ray (1890-1976) was a photographer, painter, and creator of objects, experimental films and images which were at times enigmatic. This catalogue, which presents more than 200 works and compares and contrasts images with biographical details, enables the reader to grasp the creative process involved in each work and reveals the mechanisms and motivating sources of the artist's inexhaustible imagination.
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X-Ray Astronomy

X-Ray Astronomy

Kluwer Academic Publishers
1974
sidottu
It was about fourteen years ago that some of us became intrigued with the idea of searching the sky for X-ray and gamma-ray sources other than the Sun, the only celestial emitter of high-energy photons known at that time. It was, of course, clear that an effort in this direction would not have been successful unless there occurred, somewhere in space, processes capable of producing high-energy photons much more efficiently than the processes responsible for the radiative emission of the Sun or of ordinary stars. The possible existence of such processes became the subject of much study and discussion. As an important part of this activity, I wish to recall a one-day conference on X-ray astronomy held at the Smithsonian Astrophysical Observatory in 1960. The theoretical predictions did not provide much encouragement. While several 'unusual' celestial objects were pin-pointed as possible, or even likely, sources of X-rays, it did not look as if any of them would be strong enough to be observable with instru­ mentation not too far beyond the state of the art. Fortunately, we did not allow our­ selves to be dissuaded. As far as I am personally concerned, I must admit that my main motivation for pressing forward was a deep-seated faith in the boundless re­ sourcefulness of nature, which so often leaves the most daring imagination of man far behind.
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X-Ray Astronomy

X-Ray Astronomy

Kluwer Academic Publishers
1974
nidottu
It was about fourteen years ago that some of us became intrigued with the idea of searching the sky for X-ray and gamma-ray sources other than the Sun, the only celestial emitter of high-energy photons known at that time. It was, of course, clear that an effort in this direction would not have been successful unless there occurred, somewhere in space, processes capable of producing high-energy photons much more efficiently than the processes responsible for the radiative emission of the Sun or of ordinary stars. The possible existence of such processes became the subject of much study and discussion. As an important part of this activity, I wish to recall a one-day conference on X-ray astronomy held at the Smithsonian Astrophysical Observatory in 1960. The theoretical predictions did not provide much encouragement. While several 'unusual' celestial objects were pin-pointed as possible, or even likely, sources of X-rays, it did not look as if any of them would be strong enough to be observable with instru­ mentation not too far beyond the state of the art. Fortunately, we did not allow our­ selves to be dissuaded. As far as I am personally concerned, I must admit that my main motivation for pressing forward was a deep-seated faith in the boundless re­ sourcefulness of nature, which so often leaves the most daring imagination of man far behind.
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Gamma-Ray Astronomy

Gamma-Ray Astronomy

E.L. Chupp

Kluwer Academic Publishers
1976
nidottu
Observation of discrete energy electromagnetic emissions from celestial objects in the radio, IR, optical, lN, and X-ray spectral regions has dramatically advanced our know­ ledge in the field of astrophysics. It is expected that identification of nuclear 'Y-ray line emissions from any cosmic source would also prove to be a powerful new tool for probing the Universe. Since the publication of Morrison's work in 1958, many experiments were carried out searching for evidence of 'Y-ray lines from cosmic sources, however with little success. Only a few positive experimental results have been reported, in spite of an expenditure of considerable effort by many people: in particular, the possible Galactic Center emission line (473 to 530keV) and 'Y-ray lines at several energies (e. g. , 0. 5 MeV and 2. 2 MeV) associated with large solar flares. Both of these observations are unconfirmed by indepen­ dent observations (ca. 1975). The high energy 'Y-rays (>30MeV) from the Galactic Center are at least partly due to the decay of 1[0 mesons, which are of unique energy (67. 5 MeV) in the 1[0 rest frame only. The reasons for the limited amount of data avail­ able in this field, even though early theoretical predictions were very optimistic regarding fluxes of nuclear lines, are that experimental efforts are plagued with high backgrounds and low fluxes, and that development of instruments with telescopic properties in the energy range of interest is difficult.
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X-Ray Astronomy with the Einstein Satellite

X-Ray Astronomy with the Einstein Satellite

Kluwer Academic Publishers
1981
sidottu
The meeting of the High Energy Astrophysics Division of the American Astronomical Society, held in Cambridge, Massachusetts on January 28- 30, 1980, marks the coming of age of X-ray astronomy. In the 18 years since the discovery of the first extrasolar X-ray source, Sco X-l, the field has experienced an extremely rapid instrumentation development culminating with the launch on November 13, 1978 of the Einstein Observatory (HEAO-2) which first introduced the use of high resolution imaging telescopes to the study of galactic and extragalactic X-ray sources. The Einstein Observatory instruments can detect sources as faint as 10-7 Sco X-lor about 17 magnitudes fainter. The technological developments in the field have been paralleled by a host of new discoveries: in the early 1960's the detection of 9 "X-ray stars", objects 10 times more luminous in X-rays than the Sun and among the brightest stellar objects at all wavelengths; in the late 1960's and early 1970's the discovery of the natureof such systems which were identified as collapsed stars (neutron stars and black holes) in mass exchange binary systems, and the detection of the first few extragalactic sources.
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