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1. |
Record Nr. |
UNISA990001312150203316 |
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Autore |
PILLET, Alfred |
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Titolo |
Beitrage zur kritik der altesten troubadours / Alfred Pillet |
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Pubbl/distr/stampa |
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Descrizione fisica |
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Collocazione |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Estratto da: Sitzung der sektion fur neuere philologie (23 februar 1911), P. 19 |
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2. |
Record Nr. |
UNINA9910827933903321 |
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Autore |
Klutschak Heinric |
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Titolo |
Overland to Starvation Cove : with the Inuit in search of Franklin, 1878-1880 / / Heinrich Klutschak; translated and edited by William Barr |
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Pubbl/distr/stampa |
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Toronto, [Ontario] ; ; Buffalo, [New York] ; ; London, [England] : , : University of Toronto Press, , 1987 |
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©1987 |
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ISBN |
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1-4426-5583-6 |
1-282-04549-0 |
9786612045493 |
1-4426-7818-6 |
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Edizione |
[1st pbk. ed. 1993.] |
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Descrizione fisica |
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1 online resource (296 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Inuit - Canada |
Electronic books. |
Arctic regions Discovery and exploration American |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Translation of: Als Eskimo unter den Eskimos. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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""Contents""; ""Acknowledgments""; ""Introduction""; ""Maps""; ""Preface""; ""The Search for Franklin""; ""1 Schwatka's Franklin Search Party, 1878,1879, and 1880""; ""2 Sojourn in Hudson Bay from August 1878 until 1 April 1879 as an Acclimatization Period""; ""3 The Trek to the Arctic Ocean Watershed, 1 April�4 May 1879""; ""4 From the Area of the Back River to King William's Land, 5 May�12 June 1879""; ""5 From Cape Herschel to Cape Felix, 12 June�3 July 1879""; ""6 The Main Search and Its Results, 6 July�6 August 1879"" |
""7 The Divided Search, 6 August to the End of September 1879""""8 In Permanent Camp, October 1879""; ""9 From King William's Land to the Dangerous Rapids on the Great Fish River, 1 November�12 December 1879""; ""10 On the Back River, 12�31 December 1879""; ""11 The Overland March from 31 December 1879 until 27 February 1880""; ""12 The Final Stretch to Marble Island, 28 February�23 March 1880""; ""13 The Last Months in Hudson Bay, April�August 1880""; ""14 The Inuit of the American North""; ""Postscript""; ""Afterword""; ""Notes""; ""References""; ""Index""; ""A""; ""B""; ""C"" |
""D""""e""; ""f""; ""g""; ""h""; ""i""; ""j""; ""k""; ""l""; ""m""; ""n""; ""o""; ""p""; ""q""; ""r""; ""s""; ""t""; ""u""; ""v""; ""w""; ""y"" |
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Sommario/riassunto |
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In May 1845 Sir John Franklin sailed westward from England in search of the Northwest Passage and was never seen again. Some thirty-five years later, Heinrich Klutschak of Prague, artist and surveyor on a small expedition led by Lieutenant Frederick Schwatka of the 3rd US Cavalry Regiment, stumbled upon the grisly remains at Starvation Cove of the last survivors among Franklin's men. Overland to Starvation Cove is the first English translation of Klutschak's account. A significant contribution to Canadian exploration history, it is also an important anthropological document, providing some of the earliest reliable descriptions of the Aivilingmiut, the Utkuhikhalingmiut, and the Netsilingmiut. But above all, it is a fascinating story of arctic adventure. |
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3. |
Record Nr. |
UNINA9911020099203321 |
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Autore |
Razik Hubert |
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Titolo |
Handbook of asynchronous machine with variable speed / / Hubert Razik |
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Pubbl/distr/stampa |
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London, : ISTE |
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Hoboken, N.J., : Wiley, 2011 |
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ISBN |
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9781118601037 |
1118601033 |
9781299146334 |
1299146333 |
9781118600863 |
111860086X |
9781118600931 |
1118600932 |
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Descrizione fisica |
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1 online resource (429 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Electric machinery, Induction - Automatic control |
Electric motors, Synchronous - Automatic control |
Electric driving, Variable speed |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Cover; Handbook of Asynchronous Machine with Variable Speed; Title Page; Copyright Page; Table of Contents; Foreword; Introduction; Chapter 1. Sensors and Electrical Measurements; 1.1. Optical encoder; 1.1.1. Technical aspect; 1.1.2. Absolute encoder; 1.1.3. Incremental encoder; 1.2. The velocity measurement; 1.2.1. Method of the frequency counter; 1.2.2. Method of the period measurement; 1.3. The resolver; 1.4. The isolated measurement; 1.4.1. The isolated ammeter; 1.4.2. The isolated voltmeter; 1.5. The numerical aspect; 1.6. The analog to digital converter |
1.6.1. Principle of the flash converter1.6.2. Principle of the successive approximation converter; 1.6.3. The zero-order hold; 1.6.4. The multiplexer; 1.6.5. Principle of converter using slope(s); 1.7. The |
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digital-to-analog converter; 1.8. The digital output; 1.9. The arithmetic logic unit; 1.10. Real time or abuse language; 1.11. Programming; Chapter 2. Analog, Numerical Control; 2.1. Structure of a regulator; 2.2. Stability of a system; 2.2.1. Introduction; 2.2.2. A formal criterion; 2.2.3. A graphical criterion; 2.2.4. The stability criterion; 2.3. Precision of systems |
2.3.1. The initial and final value2.3.2. The precision of systems; 2.4. Correction of systems; 2.4.1. The lag and lead corrector; 2.4.2. Other correctors; 2.5. Nonlinear control; 2.5.1. First harmonic method; 2.5.2. The oscillation stability; 2.6. Practical method of identification and control; 2.6.1. Broïda's method; 2.6.2. Ziegler's and Nichols's method; 2.7. The digital correctors; 2.7.1. Digital controller; 2.7.2. The Z-transform; 2.7.3. The Z-transform of a function; 2.7.4. Advanced Z-transform; 2.7.5. The Z-transform of a loop; 2.7.6. Some theorems; 2.7.6.1. The initial and final value |
2.7.6.2. The recurrence relation2.7.6.3. The fraction expansion; 2.7.7. The Jury stability criterion; 2.7.8. Stability: graphical criterion; 2.7.8.1. The bilinear transform; 2.7.8.2. The formal criterion; 2.7.8.3. The graphical criterion; 2.8. Classical controllers; 2.8.1. The PID structure; 2.8.2. The PI anti-windup structure; 2.8.3. Conversion of an analog controller to a digital controller; 2.8.3.1. Approximation of the integrator; 2.8.3.2. Use of the bilinear transform; 2.9. Disadvantages of digital controller; 2.9.1. Choice of the sampling period; 2.9.2. Noise |
2.9.2.1. Reminder of some concepts2.9.2.2. Quantization by truncation; 2.9.2.3. Quantization by rounding; 2.9.2.4. Quantization of a product using two's complement; 2.9.2.5. Quantization of a product by truncation; 2.9.2.6. The signal-to-quantization noise ratio; 2.9.3. Cycles limits and limitations; Chapter 3. Models of Asynchronous Machines; 3.1. The induction motor; 3.1.1. The electromagnetic torque; 3.1.2. The equivalent scheme; 3.2. The squirrel cage induction motor; 3.2.1. The stator inductances; 3.2.2. The stator mutual inductances; 3.2.3. The rotor inductances |
3.2.4. The rotor mutual inductances |
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Sommario/riassunto |
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This handbook deals with the asynchronous machine in its close environment. It was born from a reflection on this electromagnetic converter whose integration in industrial environments takes a wide part. Previously this type of motor operated at fixed speed, from now on it has been integrated more and more in processes at variable speed. For this reason it seemed useful, or necessary, to write a handbook on the various aspects from the motor in itself, via the control and while finishing by the diagnosis aspect. Indeed, an asynchronous motor is used nowadays in industry where variation speed a |
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