Results 21 to 30 of about 6,897 (216)

New Thermal Design Strategy to Achieve an 80-kg-Class Lightweight X-Band Active SAR Small Satellite S-STEP

Aerospace, 2021
The main objective of the S-STEP (the Small Synthetic Aperture Radar (SAR) Technology Experimental Project (S-STEP)) mission is developing an 80-kg-class active X-band SAR observation small satellite. For lighter, smaller, better, and cheaper development
Tae-Yong Park, Bong-Geon Chae, Hongrae Kim, Kyung-Rae Koo, Sung-Chan Song, Hyun-Ung Oh   +5 more
doaj   +1 more source

Application of simulation modelling in static tests of space-rocket vehicles

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The study presents the principles of application of simulation modeling in conducting static tests of aerospace products using the small satellite (SS) Aist-2D as an example.
D. N. Grebnev, V. K. Duplihin, J. A. Zuperman, A. I. Aistov, V. E. Kukushkin   +4 more
doaj   +1 more source

HISEA-1: The First C-Band SAR Miniaturized Satellite for Ocean and Coastal Observation

Remote Sensing, 2021
On 22 December 2020, HISEA-1, the first C-band SAR small satellite for ocean remote sensing, was launched from the coastal Wenchang launch site. Though small in weight, the images it produced have a high spatial resolution of 1 m and a large observation ...
Sihan Xue, Xupu Geng, Lingsheng Meng, Ting Xie, Lei Huang, Xiao-Hai Yan   +5 more
doaj   +1 more source

Design of a 4m resolution satellite imager for small satellites

2013 6th International Conference on Recent Advances in Space Technologies (RAST), 2013
Main criterion for response time and cost of a remote sensing space mission is the size of the intended satellite and it is directly affected by the features of the payload. By an affective optical design and utilization of emerging detector technologies, such as time delay integration (TDI) sensors, higher resolution cameras can be designed with ...
Selimoglu, Ozgur, Turk, Fethi, Yilmaz, Ozgur, Celik, Vakkas, Acar, Derya, Unses, Emre, Ucan, Meric, Guven, Erol, Yilmaz, Ozan, Mert, Y. Murat, Kirik, M. Sancay, Haliloglu, Onur   +11 more
openaire   +2 more sources

Electrochemical discharge etching of porous tungsten emitters for field emission electric propulsion applications

Scientific Reports
Field Emission Electric Propulsion (FEEP) systems offer high specific impulse and precise low thrust capability, making them suitable for micro propulsion applications.
Won Gyo Seo, Jung Won Kuk, Hongrae Kim, Dongsoo Kang, Jeongmoo Huh   +4 more
doaj   +1 more source

Analysis of an antenna system design for a synthetic L- and P-band aperture radar

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The article presents an analysis of options for designs of the antenna system for a synthetic aperture space radar (SAR), with acceptable performance characteristics in L- and P-bands.
O. V. Goryachkin, I. V. Maslov
doaj   +1 more source

Clinical, Histopathological, and Molecular Characterization of Pediatric MN1::ZNF341‐Associated Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver, Dyanne Rampling, Barbara Walkowiak, Nathaniel D. Anderson, Manas Dave, Henry Lee‐Six, Sadie Baskind, Pooja Balasubramanian, Glenn Anderson, Conor Parks, Toochi Ogbonnah, Emilia R. Robertson, Simon Hannam, Rohan Verma, John C. Achermann, Liina Palm, Neil Sebire, Thomas Jacques, Tom Watson, Carryl Dryden, Karin Straathof, Mette Jorgensen, Olga Slater, Sam Behjati, Sarita Depani, J. Ciaran Hutchinson   +25 more
wiley   +1 more source

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel, Santiago Pérez‐Hoyos, Aroa Soriano, Ana Coma, Amalia Varo, Raquel Hladun, Gabriela Guillén, Soraya Mico, Marta Garrido, Lourdes Rubio, Alba Rubio‐San‐Simón, Ana Minguez, Ricardo López‐Almaraz, Laura Illade, Miguel F. Segura, Lucas Moreno   +15 more
wiley   +1 more source

LightSail 2 Solar Sail Control and Orbit Evolution

Aerospace, 2023
The propellantless thrust of solar sails makes them capable of entirely new classes of missions compared to conventional or electric engines. Initiated in 2010, the Planetary Society’s LightSail program sought to advance solar sail technology with the ...
Justin R. Mansell, John M. Bellardo, Bruce Betts, Barbara Plante, David A. Spencer   +4 more
doaj   +1 more source

The Role of Chemotherapy in Pediatric Myoepithelial Carcinoma: A Systematic Review of the Literature

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Myoepithelial carcinoma (MEC) in pediatric patients is a rare and aggressive malignancy characterized by heterogeneous morphology and variable molecular features. The optimal role of chemotherapy remains unclear. We conducted a systematic review according to PRISMA 2020 guidelines to evaluate chemotherapy in pediatric and young‐adult patients ...
Marco Salvi, Maria Carmen Affinita, Giulia Fichera, Luisa Santoro, Angela Scagnellato, Calogero Virgone, Elena Poli, Gianni Bisogno   +7 more
wiley   +1 more source