Results 21 to 30 of about 28,761 (248)

Optimization of ferroelectricity and endurance of hafnium zirconium oxide thin films by controlling element inhomogeneity

Journal of Advanced Ceramics
Ferroelectric thin films based on HfO2 have garnered increasing attention worldwide, primarily due to their remarkable compatibility with silicon and scalability, in contrast to traditional perovskite-structured ferroelectric materials.
Fei Yan, Ke Cao, Yang Chen, Jiajia Liao, Min Liao, Yichun Zhou   +5 more
doaj   +1 more source

Dynamic Simulation for Diffusion of Satellite Detached Particles in Various Orbits [PDF]

فصلنامه علوم و فناوری فضایی, 2009
In this article the simulation of explosion and diffusion of debris consequent on explosion, in the space are studied. This method is simulated by the introduced code and the results are closely checked in accordance with different operational situations
E. Shafiee-Nejhad, N. Rahbar, M. Asghari, A. R. Novinzade   +3 more
doaj  

Uncertainty quantification of thermal barrier coatings lifetime on rotating turbine blades considering chemo-thermo-mechanically coupling failure

Materials & Design
The lifetime prediction of thermal barrier coatings (TBCs) on rotating turbine blades remains a significant challenge due to the complex service environment and multi-physics failure mechanisms.
Weiliang Yan, Cong Li, Qianqian Zhou, Yuqi Xie, Yu Sun, Li Yang, Yichun Zhou   +6 more
doaj   +1 more source

Finding Cliques in Projective Space: A Method for Construction of Cyclic Grassmannian Codes

IEEE Access, 2020
In general, the construction of subspace codes or, in particular, cyclic Grassmannian codes in some projective space Pq(n) is highly mathematical and requires substantial computational power for the resulting searches.
Ismael Gutierrez-Garcia, Ivan Molina Naizir   +1 more
doaj   +1 more source

Semi-Analytical Search for Sun-Synchronous and Planet Synchronous Orbits around Jupiter, Saturn, Uranus and Neptune

Mathematics, 2022
With the development of aerospace science and technology, more and more probes are expected to be deployed around extraterrestrial planets. In this paper, some special orbits around Jupiter, Saturn, Uranus, and Neptune are discussed and analyzed.
Biao Yang, Yu Jiang, Hengnian Li, Chunsheng Jiang, Yongjie Liu, Chaojin Zhan, Hongbao Jing, Yake Dong   +7 more
doaj   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

Tuning the Phase Structure and Electrical Properties of BNKT‐Based Ceramics via Li+ Doping

Advanced Materials Interfaces
Bi0.5[Na0.84‐xK0.16Lix]0.5TiO3 (BNKT‐xLi) lead‐free piezoelectric ceramics were successfully prepared. The phase structure and domain engineering synergistic method were used to improve the piezoelectric properties, and the influence of Li+ doping on its
Guangzhi Dong, Luyao Wang, Bilin Zhang, Ning Yang, Yifan Zhang, Xinyang Guo, Shilong Wang, Rusen Yang, Huiqing Fan, Haitao Huang   +9 more
doaj   +1 more source

Evaluación del desempeño de la radiación emitida por el sol como sistema de suministro de energía a un pico-satélite “CUBESAT” [PDF]

Tecnura, 2012
In the operation of a satellite is vital electricity, as this should feed all the same systems, such as command and control, that of communications, attitude control, among others.
Sergio Hernández R., Ernesto Gómez V., Diego F. Rocha A.   +2 more
doaj  

Some Special Types of Orbits around Jupiter

Aerospace, 2021
This paper intends to show some special types of orbits around Jupiter based on the mean element theory, including stationary orbits, sun-synchronous orbits, orbits at the critical inclination, and repeating ground track orbits.
Yongjie Liu, Yu Jiang, Hengnian Li, Hui Zhang   +3 more
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

Pediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia, Giulia Reggiani, Elizabeth J. Maran, Maria Elisa Delle Fave, Ilaria Baido, Anna Chiara Frigo, Maria Paola Boaro, Raffaella Colombatti   +7 more
wiley   +1 more source