3 research outputs found
Mutual Relative Localization in Heterogeneous Air-ground Robot Teams
No full textAlabay, Husnu Halid/0000-0001-5360-3655; Guler, Samet/0000-0002-9870-166XAir and ground robots with distinct sensing characteristics can be combined in a team to accomplish demanding tasks robustly. A key challenge in such heterogeneous systems is the design of a local positioning methodology where each robot estimates its location with respect to its neighbors. We propose a filtering-based relative localization algorithm for air-ground teams composed of vertical-take-off-and-landing drones and unmanned aerial vehicles. The team members interact through a sensing/communication mechanism relying on onboard units, which results in a mutual connection between the air and ground components. Exploiting the supplementary features of omnidirectional distance sensors and monocular cameras, the framework can function in all environments without fixed infrastructures. Various simulation and experiment results verify the competency of our approach.2232 International Fellowship for Outstanding Researchers Program of TUBITAK [118C348]This paper has been produced benefiting from the 2232 International Fellowship for Outstanding Researchers Program of TUBITAK (Project No: 118C348). However, the entire responsibility of the paper belongs to the owner of the paper. The financial support received from TUBITAK does not mean that the content of the publication is approved in a scientific sense by TUBITAK
Domains and domain dynamics in fluorite-structured ferroelectrics
No full textFerroelectricity in fluorite-structured ferroelectrics such as HfO2 and ZrO2 has been attracting increasing interest since its first publication in 2011. Fluorite-structured ferroelectrics are considered to be promising for semiconductor devices because of their compatibility with the complementary metal-oxide-semiconductor technology and scalability for highly dense information storage. The research on fluorite-structured ferroelectrics during the first decade of their conceptualization has been mainly focused on elucidating the origin of their ferroelectricity and improving the performance of electronic devices based on such ferroelectrics. Furthermore, as is known, to achieve optimal performance, the emerging biomimicking electronic devices as well as conventional semiconductor devices based on the classical von Neumann architecture require high operating speed, sufficient reliability, and multilevel data storage. Nanoscale electronic devices with fluorite-structured ferroelectrics serve as candidates for these device systems and, thus, have been intensively studied primarily because in ferroelectric materials the switching speed, reliability, and multilevel polarizability are known to be strongly correlated with the domains and domain dynamics. Although there have been important theoretical and experimental studies related to domains and domain dynamics in fluorite-structured ferroelectrics, they are yet to be comprehensively reviewed. Therefore, to provide a strong foundation for research in this field, herein, domains, domain dynamics, and emerging applications, particularly in neuromorphic computing, of fluorite-structured ferroelectrics are comprehensively reviewed based on the existing literature. © 2021 Author(s).N
Translation and westernisation in Turkey (from the 1840s to the 1980s)
No full textThis thesis examines the role and function translations played in Turkish history,
especially within the framework of its Westernisation movement from the mid-nineteenth
to the late twentieth centuries. A descriptive approach is adopted, aiming to identify
cultural patterns which shape and reflect translational decisions and help to a better
portrayal of the socio-cultural context of translation during the time span examined. To
this end, the thesis seeks to describe in detail historical, political, literary and linguistic
factors which have affected the translation activity.
The main assumption of this thesis is that acculturation was used as the main
strategy in translations from Western languages during the periods which were marked
with an extensive translation activity, especially during the nineteenth century and the first
decades of the Republican era. This acculturation strategy not only helped to enrich the
target literary system, bringing new literary models (genres), new subject matter,
developing the language and giving rise to a new Turkish literature, it also had an effect
upon the broader socio-cultural polysystem, especially on the process of identity creation.
The analysis of the social, political and cultural conditions and policies suggests
that the status given both to the source and target cultures has been the main factor for the
acculturation. As examined in the last part of the thesis, a shift of power relations in the
Turkish context, especially after the 1980s, marked a new kind of an acculturation
strategy and a certain movement of resistance.
The thesis concludes that there is need to know more about different translation
histories in order to learn more about the acculturation process and to move beyond a
Eurocentric view, and an interdisciplinary approach should be taken for such research
