Results 51 to 60 of about 10,587 (214)

Design and Test of Principle Prototype of Space Single Event Upset Discriminating and Positioning System

Yuanzineng kexue jishu, 2022
Single event upset (SEU) has always been an important factor affecting the reliability of spacecraft electronic equipment, which can cause anomalies in electronic equipment in orbit, and can result in serious spacecraft failure. In order to master signal
ZHAO Zhendong;TAO Wenze;LI Yancun;CHENG Yi;ZHANG Qingxiang;AN Heng;QUAN Xiaoping;ZHANG Chenguang
doaj  

Retrospective image analysis for long‐term demography using Google Earth imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We demonstrate that high‐resolution Google Earth imagery, combined with minimal field validation, enables retrospective tracking of individual invasive plants. The image shows one of the monitored individuals of Opuntia sp. in Greece. Our approach reveals long‐term demographic patterns, recruitment dynamics, and spatial expansion without continuous ...
Erola Fenollosa, Garrett Cohen, Roberto Salguero‐Gómez   +2 more
wiley   +1 more source

Single event upset and mitigation technique in JLTFET based RF mixer

Results in Engineering
This work deals with the study of single event effect (SEE) on RF mixer along with the mitigation technique. A 20 nm independent gate Junctionless Tunnel FET JLTFET (IGJLTFET) was first designed and based on its Id-Vg characteristics; RF mixer circuit ...
Aishwarya K, Lakshmi B
doaj   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Bee community assembly is regulated by functional traits in pristine tropical forest environments

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding the drivers of bee beta diversity across pristine environments in the Amazon is critical for ensuring biodiversity conservation, restoration, sustainable land use planning and economic development.
Rafael Cabral Borges, Erlane José Cunha, Ulysses Madureira Maia, Lourival Tyski, José Eustáquio dos Santos Júnior, Carlos Eduardo Pinto, Markus Gastauer, Tereza Cristina Giannini   +7 more
wiley   +1 more source

Mitigation and Predictive Assessment of SET Immunity of Digital Logic Circuits for Space Missions

Aerospace, 2020
Due to the intrinsic masking effects of combinational circuits in digital designs, Single-Event Transient (SET) effects were considered irrelevant compared to the data rupture caused by Single-Event Upset (SEU) effects.
Ygor Q. Aguiar, Frédéric Wrobel, Jean-Luc Autran, Paul Leroux, Frédéric Saigné, Vincent Pouget, Antoine D. Touboul   +6 more
doaj   +1 more source

Exploring the exploration: implications of leaving or remaining at the natal site during the early stages of independence in a partially migratory bird

Ibis, EarlyView.
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues, Afonso D. Rocha, João P. Silva, Carlos Carrapato, Jaime A. Ramos, Pedro M. Araújo, José A. Alves   +6 more
wiley   +1 more source

28nm Fault-Tolerant Hardening-by-Design Frequency Divider for Reducing Soft Errors in Clock and Data Recovery

IEEE Access, 2019
A fault-tolerant hardening-by-design frequency divider has been proposed for clock and data recovery in a 28-nm CMOS process. By means of the mandatory updating mechanism, the proposed divider can update the state of the D flip-flops from an error state ...
Hengzhou Yuan, Yang Guo, Jianjun Chen, Yaqing Chi, Xi Chen, Bin Liang   +5 more
doaj   +1 more source

You Can't Be With Your Patients All the Time—Patient and Staff Views of a Wearable Vital Signs Monitoring System

Journal of Advanced Nursing, EarlyView.
ABSTRACT Aim To explore staff and patient perception of the newly co‐developed wearable monitoring system (WMS), including acceptability of use in clinical practice. Design Pragmatic qualitative descriptive study. Methods Semi‐structured interviews were conducted with 12 patient participants and eight staff members between June 2023 and August 2024 ...
Clare Edwards, Holly Edmundson, Elizabeth King, Cristian Roman, Peter Watkinson, Sarah Vollam   +5 more
wiley   +1 more source

Single event effects in static and dynamic registers in a $0.25-\mu-m$ CMOS technology [PDF]

, 1999
We have studied single event effects in static and dynamic registers designed in a quarter micron CMOS process. In our design, we systematically used guardrings and enclosed (edgeless) transistor geometry to improve the total dose tolerance.
Calin, T, Cosulluella, J, Faccio, F, Kloukinas, Kostas C, Marchioro, A, Nicolaidis, M, Velazco, R   +6 more
core   +3 more sources