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Memories About Flight!
 
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Memories About Flight! [Paperback]

Dr. Florian / F Ion / I Petrescu (Author), Dr. Relly / R Victoria / V Petrescu (Author)

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Book Description

November 11, 2011
Stealth aircraft are aircraft that use stealth technology to avoid detection by employing a combination of features to interfere with radar as well as reduce visibility in the infrared, visual, audio, and radio frequency (RF) spectrum. Development of stealth technology likely began in Germany during World War II. Well-known modern examples of stealth aircraft include the United States' F-117 Nighthawk (1981–2008), the B-2 Spirit, the F-22 Raptor, and the F-35 Lightning II. While no aircraft is totally invisible to radar, stealth aircraft prevent conventional radar from detecting or tracking the aircraft effectively, reducing the odds of a successful attack. Stealth is the combination of passive low observable (LO) features and active emitters such as Low Probability of Intercept Radars, radios and laser designators. These are usually combined with active defenses such as chaff, flares, and ECM. It is accomplished by using a complex design philosophy to reduce the ability of an opponent's sensors to detect, track, or attack the stealth aircraft. This philosophy also takes into account the heat, sound, and other emissions of the aircraft as these can also be used to locate it. Speaking about a new ionic engine means to speak about a new aircraft. The book presents shortly the actual ionic engines (called ion thrusters) and the new ionic (pulse) engines proposed by the authors. Ionic engine (ion thruster, which accelerates the positive ions through a potential difference) is about 10 times more effective than classic system based on combustion. We can still improve the efficiency of 10-50 times if one uses pulses of positive ions accelerated in a cyclotron mounted on the ship; the efficiency can easily grow for 1000 times if the positive ions will be accelerated in a high energy synchrotron, synchrocyclotron or isochronous cyclotron (1-100 GeV). In this, the big classic synchrotron is reduced to a ring surface (magnetic core). Future (ionic) engine will have mandatory a circular particle accelerator (high or very high energy). We can thus increase the speed and autonomy of the ship using a less quantity of fuel and power. One can use synchrotron radiation (synchrotron light, high intensity beams), like high intensity (X-ray or Gamma ray) radiation, as well. In this case will be a beam engine (not an ionic engine), it’ll use only the power (energy, which can be solar energy, nuclear energy, or both) and so we will remove the fuel. It proposes using a powerful LINAC at the exit of synchrotron (especially when one accelerates electrons) to not lose energy by photons premature emission. With a new ionic engine one builds a new aircraft, which can travel through water and. This new aircraft will can accelerate directly, without an additional combustion engine and without gravity assists from other planets.

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Editorial Reviews

About the Author

Nihil sine Deo Ph.D. Eng. Florian Ion PETRESCU Senior Lecturer at UPB (Bucharest Polytechnic University). Citizenship: Romanian; Date of birth: March.28.1958; Higher education: Polytechnic University of Bucharest, Faculty of Transport, Road Vehicles Department, graduated in 1982, with overall average 9.63; Doctoral Thesis: „Theoretical and Applied Contributions About the Dynamic of Planar Mechanisms with Superior Joints”. Expert in Industrial Design, Engineering Mechanical Design, Engines Design, Mechanical Transmissions, Dynamics, Vibrations, Mechanisms Machines Robots and Mechatronics. Association: Member ARoTMM - IFToMM, SIAR-FISITA, ARR. Languages known: -French; -English. Related activities and functions: Instructor and Social Commission Head of CUB (Bucharest’s University Center) 1985-1987, the Third Head of CUB after [Moncea] and Bostan, 1985-1987.
 

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Gear Solutions
 
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Gear Solutions [Paperback]

Dr. Florian Ion Petrescu (Author), Dr. Relly Victoria Petrescu (Author)

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Our Energy!
 
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Our Energy! [Paperback]

Dr. Florian Ion Petrescu (Author)

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Book Description

November 12, 2011
This book, try a vision about the tomorrow Earth's energies. Besides the traditional energies, are presented and possible new energies source. The author presents shortly, the annihilation process, which can donate energies obtained by the annihilation process between a particle and its antiparticle. Practically it proposes obtaining energy by the process of annihilation of matter with the antimatter. Another proposed method is the acquiring energy from the source and retransmitting it on the Earth in concentrated form. Energy development is the effort to provide sufficient primary energy sources and secondary energy forms for supply, cost, impact on air pollution and water pollution, mitigation of climate change with renewable energy. Technologically advanced societies have become increasingly dependent on external energy sources for transportation, the production of many manufactured goods, and the delivery of energy services. This energy allows people who can afford the cost to live under otherwise unfavorable climatic conditions through the use of heating, ventilation, and/or air conditioning. Level of use of external energy sources differs across societies, as do the climate, convenience, levels of traffic congestion, pollution and availability of domestic energy sources. All terrestrial energy sources except nuclear, geothermal and tidal are from current solar insolation or from fossil remains of plant and animal life that relied directly and indirectly upon sunlight, respectively. Ultimately, solar energy itself is the result of the Sun's nuclear fusion. Geothermal power from hot, hardened rock above the magma of the Earth's core is the result of the decay of radioactive materials present beneath the Earth's crust, and nuclear fission relies on man-made fission of heavy radioactive elements in the Earth's crust; in both cases these elements were produced in supernova explosions before the formation of the solar system. Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished).

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About the Author

Nihil sine Deo Ph.D. Eng. Florian Ion PETRESCU Senior Lecturer at UPB (Bucharest Polytechnic University). Citizenship: Romanian; Date of birth: March.28.1958; Higher education: Polytechnic University of Bucharest, Faculty of Transport, Road Vehicles Department, graduated in 1982, with overall average 9.63; Doctoral Thesis: „Theoretical and Applied Contributions About the Dynamic of Planar Mechanisms with Superior Joints”. Expert in Industrial Design, Engineering Mechanical Design, Engines Design, Mechanical Transmissions, Dynamics, Vibrations, Mechanisms Machines Robots and Mechatronics. Aircraft, Vehicles, Automotive Engineering, Physics, Nuclear Energy, Renewable Energy, Green Energy. Association: Member ARoTMM - IFToMM, SIAR-FISITA, ARR. Languages known: -French; -English.
 

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Mechanical Engineering Design
 
 
 
 
 
 

Mechanical Engineering Design [Paperback]

Dr. Florian Ion Petrescu (Author), Dr. Relly Victoria Petrescu (Author)

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Book Description

1467913774 978-1467913775 November 9, 2011
Mechanical Engineering Design is the first edition of a largest old preocupation of the authors in this field. It presents the design of the Otto Motors, kinematics and dynamics, a new Otto engine, the efficiency of the engines with internal combustion, the design of the V engines, the design of the distribution mechanisms, the design of the power train and the design of the drivetrain. It presents as well the design of the planetary trains with their real efficiency. The book has 14 chapters. Since the predominant component in all chapters is the dynamics, the book might be called and dynamic design in mechanical engineering.

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Nihil sine Deo Ph.D. Eng. Florian Ion PETRESCU Senior Lecturer at UPB (Bucharest Polytechnic University). Citizenship: Romanian; Date of birth: March.28.1958; Higher education: Polytechnic University of Bucharest, Faculty of Transport, Road Vehicles Department, graduated in 1982, with overall average 9.63; Doctoral Thesis: „Theoretical and Applied Contributions About the Dynamic of Planar Mechanisms with Superior Joints”. Expert in Industrial Design, Engineering Mechanical Design, Engines Design, Mechanical Transmissions, Dynamics, Vibrations, Mechanisms Machines Robots and Mechatronics; Automotive Engineering, Vehicles, Physics, Aircraft, Energy. Association: Member ARoTMM - IFToMM, SIAR-FISITA, ARR. Languages known: -French; -English. Related activities and functions: Instructor and Social Commission Head of CUB (Bucharest’s University Center) 1985-1987, the Third Head of CUB after [Moncea] and Bostan, 1985-1987.
 

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Some New Elements in Physics
 
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Some New Elements in Physics [Paperback]

Dr. Florian Ion Petrescu (Author)

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Book Description

November 18, 2011
The movement of an electron around the atomic nucleus has today a great importance in many engineering fields. Electronics, aeronautics, micro and nanotechnology, electrical engineering, optics, lasers, nuclear power, computing, equipment and automation, telecommunications, genetic engineering, bioengineering, special processing, modern welding, robotics, energy and electromagnetic wave field is today only a few of the many applications of electronic engineering. This first chapter presents shortly a new and original relation which calculates the radius with that the electron is running around the atomic nucleus. The second chapter presents, shortly, a new and original relation (20) which calculates the Doppler Effect exactly. This new relation (20) is the exact form and the classical expression (10) is an approximate relation. Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). The share of renewables in electricity generation is around 18%, with 15% of global electricity coming from hydroelectricity and 3% from new renewables. The third chapter aims to disseminate new methods of obtaining energy. After 1950, began to appear nuclear fission plants. The fission energy was a necessary evil. In this mode it stretched the oil life, avoiding an energy crisis. Even so, the energy obtained from oil represents about 66% of all energy used. At this rate of use of oil, it will be consumed in about 40 years. Today, the production of energy obtained by nuclear fusion is not yet perfect prepared. But time passes quickly. We must rush to implement of the additional sources of energy already known, but and find new energy sources. In these circumstances this chapter comes to proposing possible new energy sources, like energies obtained by the annihilation of a particle with its antiparticle.

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Nihil sine Deo Ph.D. Eng. Florian Ion PETRESCU Senior Lecturer at UPB (Bucharest Polytechnic University). Citizenship: Romanian; Date of birth: March.28.1958; Higher education: Polytechnic University of Bucharest, Faculty of Transport, Road Vehicles Department, graduated in 1982, with overall average 9.63; Doctoral Thesis: „Theoretical and Applied Contributions About the Dynamic of Planar Mechanisms with Superior Joints”. Expert in Industrial Design, Engineering Mechanical Design, Engines Design, Mechanical Transmissions, Dynamics, Vibrations, Mechanisms Machines Robots and Mechatronics, Automotive, Aircraft, Vehicles, Physics, Energy, Quantum Physics, Nuclear Energy.
 

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