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1. |
Record Nr. |
UNISALENTO991001507239707536 |
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Titolo |
L'Arbre et le fruit : La naissance dans l'Occident moderne (XVI-XIX siecle) / Jacques Gélis |
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Pubbl/distr/stampa |
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Descrizione fisica |
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Disciplina |
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Soggetti |
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Antropologia delle nascite - Francia |
Demografia |
Donne - Concezione - Francia |
Maternità |
Nascite - Sociologia |
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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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2. |
Record Nr. |
UNINA9910346706903321 |
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Autore |
Boog Manuel |
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Titolo |
Steigerung der Verfügbarkeit mobiler Arbeitsmaschinen durch Betriebslasterfassung und Fehleridentifikation an hydrostatischen Verdrängereinheiten |
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Pubbl/distr/stampa |
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KIT Scientific Publishing, 2011 |
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ISBN |
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Descrizione fisica |
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1 online resource (XVIII, 137 p. p.) |
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Collana |
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Karlsruher Schriftenreihe Fahrzeugsystemtechnik / Institut für Fahrzeugsystemtechnik |
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Soggetti |
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Technology: general issues |
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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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Sommario/riassunto |
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Am Beispiel einer hydrostatischen Fahrantriebspumpe werden verschiedene Möglichkeiten zur Verfügbarkeitssteigerung von mobilen Arbeitsmaschinen aufgezeigt.Auftretende Fehler werden durch ein Fehlererkennungs- und Fehleridentifikationsverfahren verarbeitet und erlauben eine angepasste Fehlerreaktion im Maschinenbetrieb. Ein zweiter Ansatz basiert auf der gezielten Erfassung von Betriebslasten zur Restlebensdauerabschätzung und zur belastungsabhängigen Instandhaltung. |
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3. |
Record Nr. |
UNINA9910957774803321 |
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Titolo |
Advanced power sources for space missions / / Committee on Advanced Space Based High Power Technologies, Energy Engineering Board, Commission on Engineering and Technical Systems, National Research Council |
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Pubbl/distr/stampa |
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Washington, D.C., : National Academy Press, 1989 |
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ISBN |
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9786610214396 |
9781280214394 |
1280214392 |
9780309594868 |
0309594863 |
9780585085272 |
0585085277 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (154 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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High technology |
Space vehicles - Nuclear power plants |
Space vehicles - Auxiliary power supply |
Space vehicles - Propulsion systems |
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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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Includes index. |
Committee chairman: Joseph G. Gavin. |
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Nota di bibliografia |
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Nota di contenuto |
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Advanced Power Sources for Space Missions -- Copyright -- Preface -- Contents -- Executive Summary -- 1 Introduction -- 2 Space Power Requirements and Selection Criteria -- OVERVIEW OF SPACE-BASED POWER REQUIREMENTS -- SDI Power Requirements for Housekeeping, Alert, and Burst Modes -- Requirements of Military Missions Other than SDI -- Requirements of Civil Missions -- Commonality of Requirements Among Civil and Military Missions -- APPROACHES TOWARD SELECTING SPACE POWER TECHNOLOGIES TO MEET SDI REQUIREMENTS -- Critical Issue Areas -- System Considerations -- Qualification of Power-Conditioning Subsystems and Components -- Influence of SDI |
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Survivability and Vulnerability Criteria -- Findings, Conclusions, and Recommendation -- 3 Space Power System Options and Selection Constraints -- SUMMARY OF AVAILABLE SPACE POWER SYSTEM OPTIONS -- Nonnuclear Power for Orbital Use -- Photovoltaic Space Power Systems -- Solar-Dynamic Power -- Chemical Space Power Systems -- Magnetohydrodynamic Space Power Systems -- Nuclear Power for Use in Space -- Nuclear Safety, Environmental, and Regulatory Considerations -- Radioisotope Thermoelectric Generators -- Dynamic Isotope Power Sources -- SP-100 Space Nuclear Reactor System -- Smaller Nuclear Space Reactor Systems -- Multimegawatt Nuclear Space Reactor System Designs -- Other Advanced Nuclear Systems -- Finding, Conclusion, and Recommendation -- Ground-Based Power Beamed to Orbit -- Finding and Recommendation -- Co-Orbiting Power Sources -- ENVIRONMENTAL CONSTRAINTS INFLUENCING THE SELECTION OF SPACE POWER SYSTEMS -- The Natural Space Environment -- Orbital Environmental Impacts -- Conclusion and Recommendation -- 4 Needed Technological Advances in Space Power Subsystems to Meet SDI Requirements -- IMPLICATIONS OF SDI SPACE POWER ARCHITECTURE SYSTEM STUDIES FOR ADVANCES NEEDED IN POWER SUBSYSTEMS. |
ADVANCES NEEDED IN HIGH-TEMPERATURE STRUCTURAL MATERIALS TECHNOLOGY -- ADVANCES NEEDED IN POWER-CONDITIONING AND PULSE-GENERATING TECHNOLOGIES -- Superconducting Materials -- Component Technology -- FINDINGS, CONCLUSION, AND RECOMMENDATION -- 5 Approaches Toward Achieving Advances in Critical Power Technologies -- ADVANCING THERMAL-MANAGEMENT TECHNOLOGIES -- Heat-Rejection Considerations -- Survivability Considerations -- ADVANCING POWER-CONDITIONING COMPONENTS AND TECHNOLOGIES -- Advancing the Design of Conductors -- Normal Conductors -- Superconductors -- Superconducting Magnetic Energy Storage -- ADVANCEMENT POTENTIAL OF TECHNOLOGY FOR DYNAMIC POWER-CONVERSION CYCLES -- Advancement Potential for Alternator Technology -- Advancing the State of the Art in Power System Components -- MATERIALS ADVANCES REQUIRED FOR THE EVOLVING SPACE POWER TECHNOLOGIES -- Magnetic Materials -- Insulators -- High-Temperature Structural Materials -- CONCLUSION AND RECOMMENDATION -- 6 Commentaries on the SDI Power Program -- COMMENTARY ON SDI SPACECRAFT SYSTEM NEEDS AND THEIR IMPACTS ON THE SPACE POWER SYSTEM -- COMMENTARY ON SDI PROGRAM ISSUES -- REVIEW OF THE SDI SPACE POWER PROGRAM -- COMMENTARY ON THE SDI SPACE POWER INVESTMENT STRATEGY -- FINDING, CONCLUSION, AND RECOMMENDATIONS -- References -- Appendix A Glossary of Abbreviations -- Appendix B Biographical Sketches -- COMMITTEE MEMBERS -- ENERGY ENGINEERING BOARD LIAISON -- TECHNICAL ADVISOR -- STUDY DIRECTOR -- Appendix C Study Chronology (Meetings, Briefings, and Site Visits) -- MEETING, APRIL 21-22, 1987, WASHINGTON, D.C., NATIONAL ACADEMY OF SCIENCES -- MEETING, JUNE 25-26, 1987, NASA LEWIS RESEARCH CENTER, CLEVELAND, OHIO -- MEETING, JULY 20-21, 1987, ALBUQUERQUE, NEW MEXICO -- MEETING, AUGUST 25-26, 1987, SEATTLE, WASHINGTON -- MEETING, OCTOBER 19-20, 1987, NATIONAL ACADEMY OF SCIENCES, WASHINGTON, D.C. |
MEETING, NOVEMBER 17-18, 1987, NATIONAL ACADEMY OF SCIENCES WASHINGTON, D.C. -- MEETING, JANUARY 21-22, 1988, NATIONAL ACADEMY OF SCIENCES, WASHINGTON, D.C. -- Appendix D Possible Impacts of Effluents from SDI Systems -- SPACE SHUTTLE EXPERIENCE RELEVANT TO POSSIBLE IMPACTS OF EFFLUENTS PROJECTED FOR SDI SYSTEMS -- ESTIMATION OF THE IMPACT OF EFFLUENT ON |
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PROPAGATION OF A NEUTRAL-PARTICLE BEAM -- Appendix E Compilation of Study Findings, Conclusions, and Recommendations -- FINDINGS -- CONCLUSIONS -- RECOMMENDATIONS -- Index. |
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Sommario/riassunto |
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"Star Wars"--as the Strategic Defense Initiative (SDI) is dubbed--will require reliable sources of immense amounts of energy to power such advanced weapons as lasers and particle beams. Are such power sources available? This study says no, not yet--and points the way toward the kind of energy research and development that is needed to power SDI. Advanced Power Sources for Space Missions presents a comprehensive and objective view of SDI's unprecedented power requirements and the opportunities we have to meet them in a cost-effective manner. |
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