Results 31 to 40 of about 1,591,633 (288)
Limitations of Radar Coordinates [PDF]
, 2004 The construction of a radar coordinate system about the world line of an observer is discussed. Radar coordinates for a hyperbolic observer as well as a uniformly rotating observer are described in detail.
BAHRAM MASHHOON +8 more
core +2 more sources
Evolving Values and How They Have Shaped the United States National Park System
Built Heritage, 2018 As one of the oldest and best-known park systems, the US National Park System continues to influence park systems around the world. However, the origins and wide diversity of US national parks are often not fully understood as there is a long-lived ...
Cari Goetcheus +2 more
doaj +1 more source
Adaptive sliding mode observers in uncertain chaotic cryptosystems with a relaxed matching condition [PDF]
, 2006 We study the performance of adaptive sliding mode observers in chaotic synchronization and communication in the presence of uncertainties. The proposed robust adaptive observer-based synchronization is used for cryptography based on chaotic masking ...
Raoufi, R., Zinober, A.S.I.
core +1 more source
Observer dependent entanglement
, 2012 Understanding the observer-dependent nature of quantum entanglement has been a central question in relativistic quantum information. In this paper we will review key results on relativistic entanglement in flat and curved spacetime and discuss recent ...
Alsing, Paul M., Fuentes, Ivette
core +1 more source
Sensors, 2023 Hybrid aircraft configurations with combined cruise and vertical flight capabilities are increasingly being considered for unmanned aircraft and urban air mobility missions. To ensure the safety and autonomy of such missions, control challenges including
Zaidan Zyadat +3 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Development of bilateral operation system for the assembly of magnetized components
Nihon Kikai Gakkai ronbunshu, 2020 In the assembly of micro components, a slight impact during assembly affects product performance. This work focuses on the assembly of parts including magnetized components.
Ryu MONJIYAMA +4 more
doaj +1 more source
Chaos-based communication scheme using proportional and proportional-integral observers [PDF]
, 2008 In this paper, we propose a new chaos-based communication scheme using the observers. The novelty lies in the masking procedure that is employed to hide the confidential information using the chaotic oscillator.
Busawon, Krishna +2 more
core +1 more source
A physical interpretation of Hubble's law and the cosmological redshift from the perspective of a static observer [PDF]
, 2012 We derive explicit and exact expressions for the physical velocity of a free particle comoving with the Hubble flow as measured by a static observer, and for the frequency shift of light emitted by a comoving source and received, again, by a static ...
Braeck, Simen, Elgaroy, Oystein
core +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie +4 more
wiley +1 more source