Results 31 to 40 of about 14,330,907 (267)

A methodological exploration to study 2D arm kinematics in Ophiuroidea (Echinodermata)

Frontiers in Zoology, 2023
Brittle stars, unlike most other echinoderms, do not use their small tube feet for locomotion but instead use their flexible arms to produce a rowing or reverse rowing movement.
Mona Goharimanesh, Sabine Stöhr, Fereshteh Ghassemzadeh, Omid Mirshamsi, Dominique Adriaens   +4 more
doaj   +1 more source

Divisible load scheduling of image processing applications on the heterogeneous star and tree networks using a new genetic algorithm [PDF]

Concurrency and Computation: Practice and Experience, 2019
SummaryThe divisible load scheduling of image processing applications on the heterogeneous star and multi‐level tree networks is addressed in this paper. In our platforms, processors and network links have different speeds. In addition, computation and communication overheads are considered. A new genetic algorithm for minimizing the processing time of
Sahar Nikbakht Aali, Nader Bagherzadeh
openaire   +3 more sources

Sieve Search Centroiding Algorithm for Star Sensors

Sensors, 2023
The localization of the center of the star image formed on a sensor array directly affects attitude estimation accuracy. This paper proposes an intuitive self-evolving centroiding algorithm, termed the sieve search algorithm (SSA), which employs the ...
Vivek Chandran Karaparambil, Narayan Suresh Manjarekar, Pravin Madanrao Singru   +2 more
doaj   +1 more source

LOW FREQUENCY ERROR ANALYSIS AND CALIBRATION FOR HIGH-RESOLUTION OPTICAL SATELLITE’S UNCONTROLLED GEOMETRIC POSITIONING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The low frequency error is a key factor which has affected uncontrolled geometry processing accuracy of the high-resolution optical image. To guarantee the geometric quality of imagery, this paper presents an on-orbit calibration method for the low ...
M. Wang, C. Fang, B. Yang, Y. Cheng
doaj   +1 more source

Research on image reinforcement method for star sensor based on high-level synthesis constraints

Dianzi Jishu Yingyong
Spacecraft star sensor image processing is a crucial component of Field Programmable Gate Array(FPGA) payload missions. This functionality significantly reduces the data transmission requirements of the payload, accelerates decision-making speed, and ...
Wang Xian, Lu Yao, Gao Jiaxuan
doaj   +1 more source

Prototype Development of the Star Sensor for the KITSAT-3 [PDF]

Journal of Astronomy and Space Sciences, 1995
This report presents the development procedure and the results of a prototype star sensor which can be sued as one of the attitude sensors of the KITSAT-3.
Hyunwoo Lee, Byung Jin Kim, Sang-Keun Yoo, Wonyong Han   +3 more
doaj  

A Practical Star Image Registration Algorithm Using Radial Module and Rotation Angle Features

, 2023
Star image registration is the most important step in the application of astronomical image differencing, stacking, and mosaicking, which requires high robustness, accuracy, and real-time capability on the part of the algorithm.
Yabo Li, Quan Sun, Lei Liu, Zhuang Wang, Zhaodong Niu, Jingyi Zhang   +5 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

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, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Data hiding using parallel algorithms [PDF]

مجلة التربية والعلم, 2012
In this research a simulation parallel algorithm for data hiding and data retrieval in gray digital image files were used. A simulation for this algorithm was applied on star network type.
niaghm Saeed
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