Results 31 to 40 of about 6,965,165 (306)

THE TIME AND FREQUENCY CONTROL SUBSYSTEM ONBOARD NAVSTAR/GPS

, 1984
International Telemetering Conference Proceedings / October 22-25, 1984 / Riviera Hotel, Las Vegas, NevadaThe commitment of the Global Positioning System (GPS) to use atomic clocks dates back more than ten years ago when the first major contractual ...
Hellwig, Helmut, Levine, Martin W.
core   +4 more sources

Broadband 1-GHz mid-infrared frequency comb

Light: Science & Applications, 2022
Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and hyper-spectral imaging. Among the available spectroscopic approaches, GHz MIR dual-comb absorption spectrometers have the potential to simultaneously combine the high ...
Nazanin Hoghooghi, Sida Xing, Peter Chang, Daniel Lesko, Alexander Lind, Greg Rieker, Scott Diddams   +6 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Exact BER Analysis of OFDM Systems Communicating over Frequency-Selective Fading Channels Subjected to Carrier Frequency Offset

, 2007
Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase Estimation Error (PER).
Liu, X., Hanzo, L., Lajos Hanzo, Xiang Liu   +3 more
core   +2 more sources

A universal and versatile terahertz field manipulation mechanism by manipulating near-infrared phases with a dislocation scheme

Nature Communications
This paper presents a universal and versatile terahertz (THz) wavefront-phase manipulation by manipulating the two-dimensional phases of the near-infrared pulses.
Qinggang Lin, Fu Feng, Xuanke Zeng, Yi Cai, Wenzhao He, Congying Wang, Kaipeng Wu, Xiaowei Lu, Hongmei Zhong, Shixiang Xu, Jingzhen Li, Xiaocong Yuan   +11 more
doaj   +1 more source

Magic Frequencies for Cesium Primary-Frequency Standard [PDF]

Physical Review Letters, 2008
4 pages, 2 ...
Flambaum, V. V., Dzuba, V. A., Derevianko, A.   +2 more
openaire   +3 more sources

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Frequency-Power Control of VSWTG for Improved Frequency Regulation

, 2023
With increasing wind energy penetration and impending grid codes, it is important to enable wind-based power plants to provide sensitive frequency response in grids that may experience irregular frequency fluctuations with noise induced.
Asma Aziz (13059384), Amanullah Oo (13054650)   +1 more
core  

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom, Dorella Scarponi, Giulia Zucchetti, Teresa Perillo, Maria Montanaro, Elisa Marconi, Chiara Rutigliano, Paolo Colavero, Paola Quarello, Marina Bertolotti, Monica Cellini, Carlo Clerici, Maurizio Mascarin, Francesca Bomben, Andrea Ferrari, the expert workgroup   +15 more
wiley   +1 more source

A flexible impedance-based microsystem for multi-parameter sensing in ionic solutions

Microsystems & Nanoengineering
We present a flexible multi-sensor (FMS) microsystem for simultaneous measurement of flow, temperature, and ionic conductivity in liquid environments.
Haoxin Hu, Wenlin Xiao, Yubin Ma, Lifeng Huang, Ke Xiao, Wei Xu   +5 more
doaj   +1 more source