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SAE technical paper series, Volume 952477.
.... These characteristics are often complemented by velocity profiles in the cylinder and the valve gap, but the influence of valve and piston motion cannot be represented... 
Fuels and Energy Sources | Valves | Vehicle performance
eJournal
SAE technical paper series, Volume 961788.
... only. SatCon has designed, manufactured and tested on axial gap induction motor, which developed 20 hp at 3600 rpm... 
Fuels and Energy Sources | Tests and Testing | Vehicle performance
eJournal
SAE technical paper series, Volume 950004.
1. ABSTRACT The combustion of fuel inside an engine cylinder produces ions. By applying a small DC voltage across the spark gap after ignition, ion current is produced... 
Knock | On-board Energy Sources | Electrical, Electronics and Avionics | Engines
eJournal
SAE technical paper series, Volume 952459.
The objective of the present work was to investigate a rapid method of obtaining the convection velocity of the bulk gas near the spark plug gap of a firing engine at the time of ignition... 
Fuels and Energy Sources | Engines
eJournal
SAE technical paper series, Volume 2000-01-1570.
.... The base design used was a radial-gap motor with 30 kW of net output characteristic of the PNGV “Series” vehicles... 
Vehicle performance | Energy storage systems | Simulation and modeling | Electric motors
eJournal
2014, Routledge studies in governance and change in the global era, ISBN 0203417259, Volume 9, xxxvii, 422
"This book explores the persistence of the governance gap with respect to the human rights-impacting conduct of transnational extractive corporations operating in zones of weak governance... 
Human rights | Corporate governance | Mineral industries | Moral and ethical aspects | Corporations, Foreign | Industrial policy | Energy industries | Political Economy | Regulation | International Law - Law | Developing countries | War | International business enterprises
Book
Energy policy, ISSN 0301-4215, 2012, Volume 51, pp. 392 - 396
.... The discrepancy between optimal and actual implementation of energy efficient technologies has been illustrated in numerous articles and is often referred to as the energy efficiency gap... 
Market barriers | The extended energy efficiency gap | Energy management | MANAGEMENT | INDUSTRY | ENERGY & FUELS | BARRIERS | ENVIRONMENTAL SCIENCES | PARADOX | DRIVING FORCES | SYSTEMS | ECONOMICS | ENVIRONMENTAL STUDIES | Evaluation | Energy management systems | Energy efficiency | Engineering and Technology | Naturresursteknik | Environmental Engineering | Energisystem | Energy Systems | Teknik
Journal Article
Proceedings of the National Academy of Sciences - PNAS, ISSN 1091-6490, 2016, Volume 113, Issue 32, pp. 8910 - 8915
.... As regulated by Shockley–Queisser theory, a formidable materials science challenge for improvement to the next level requires further band-gap narrowing for broader absorption in solar spectrum, while retaining... 
Band gap | Perovskite|solar cell | Carrier lifetime | High pressure | HIGH-PRESSURE | perovskite | SOLAR-CELLS | SEMICONDUCTORS | MULTIDISCIPLINARY SCIENCES | ORGANOLEAD BROMIDE PEROVSKITE | OPTICAL-PROPERTIES | HALIDE PEROVSKITES | high pressure | carrier lifetime | HYBRID PEROVSKITES | SINGLE-CRYSTALS | PHASE | VISIBLE-LIGHT RESPONSE | solar cell | band gap | Solar cells | Perovskite | Electrical conductivity | Solar batteries | Properties | Observations | Electric properties | MATERIALS SCIENCE | SOLAR ENERGY | Physical Sciences
Journal Article
Physical review letters, ISSN 1079-7114, 2016, Volume 116, Issue 4, p. 043201
.... Electronic stopping is found to be significant below the threshold velocity normally identified with transitions across the band gap... 
THRESHOLD | PHYSICS, MULTIDISCIPLINARY | ENERGY-LOSS | SEMICONDUCTORS | COLLISION CASCADES | Thresholds | Mathematical analysis | Electronics | Density functional theory | Silicon | Elevators | Excitation | Kinetic energy | Physics - Materials Science | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Journal Article
Nature (London), ISSN 1476-4687, 2015, Volume 528, Issue 7581, pp. 207 - 211
The spectral gap-the energy difference between the ground state and first excited state of a system-is central to quantum many-body physics... 
STATE | LATTICE | QUANTUM | MULTIDISCIPLINARY SCIENCES | ANTIFERROMAGNET | COMPLEXITY | Usage | Algorithms | Mathematical analysis | Methods | Quantum theory | Energy | Quantum physics
Journal Article
Science (American Association for the Advancement of Science), ISSN 1095-9203, 2014, Volume 346, Issue 6215, pp. 1348 - 1352
... ∼450-attosecond step rise time provides an upper limit for the carrier-induced band-gap reduction and the electron-electron scattering time in the conduction band... 
Conduction bands | Electric pulses | Charge carriers | Semiconductors | Lasers | Pumps | REPORTS | Phonons | Electron tunneling | Silicon | Electric fields | COHERENT CONTROL | IONIZATION | MULTIDISCIPLINARY SCIENCES | BREAKDOWN | Spectrum analysis | Electron affinity | Models | Properties | Electron transport | Methods | Electron transfer | Materials science | Lattices | Electronics | Conduction band | Energy gaps (solid state)
Journal Article
Angewandte Chemie (International ed.), ISSN 1433-7851, 2015, Volume 54, Issue 10, pp. 3112 - 3115
.... However, all 2D semiconductors reported thus far feature band gaps that are smaller than 2.0 eV, which has greatly restricted their applications, especially in optoelectronic devices with photoresponse in the blue and UV range... 
density functional calculations | antimony | electronic properties | arsenic | semiconductors | Antimony | Electronic properties | Density functional calculations | Arsenic | Semiconductors | TRANSPORT | NANORIBBONS | GRAPHENE | CRYSTALS | CHEMISTRY, MULTIDISCIPLINARY | Chemical properties | Transistors | Metalloids | Molybdenum disulfide | Optoelectronic devices | Two dimensional | Photonic band gaps | Energy gaps (solid state)
Journal Article