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UAV-assisted free space optical communication system with amplify-and-forward relaying
(IEEE, 2021-09)In this paper, the performance of an unmanned aerial vehicle (UAV)-based free-space optical relay system with amplify-and-forward relaying is analyzed. In particular, the statistical probability of end-to-end signal-to-noise ... -
UAV-based FSO communications for high speed train backhauling
(IEEE, 2019)In line with the increasing number of high speed train (HST) commuters and their demand for mobile data, railways operators expore means of providing high speed on-board wireless access. The data from all train cars are ... -
Uçurumda insanlar
(1924-11) -
Udî
(1899-03) -
Udolf Hisarı
(1891-06) -
The ultimate co-creation: leveraging customer input in business model innovation
(Springer, 2019-12)In order to stay competitive, organizations need to regularly revamp and innovate their business model (BM). A key catalyst for innovation—acknowledged by managers as well as academics—is input from customers. However, the ... -
Ultraviolet communications for airborne links
(2019-07)In Turkey, artificial insemination is only permitted to couples when they are officially married. Surrogacy, however, has been banned by the law and is illegal as in most European countries. Despite the fact that nowadays ... -
Ultraviolet communications for ground-to-air links
(IEEE, 2019)Ultraviolet (UV) communication enables non-line-of-sight (NLOS) wireless connectivity through strong molecular and aerosol scattering. Due to their NLOS nature, UV links bring robustness to blockage or shadowing and relax ... -
Ultraviolet communications for unmanned aerial vehicle networks
(IEEE, 2022)Due to the strong scattering, ultraviolet (UV) communication links enable non-line-of-sight (NLOS) outdoor connectivity and relax the pointing, acquisition, and tracking requirements encountered in infrared links. This ... -
Uluslararası hukuk bağlamında nükleer santrallerin siber güvenliği
(2018-06)In this study, the processes from the "Atom", which is the smallest building block of the material that was even mentioned by Aristotle, to the first uses of nuclear energy; from what the nuclear energy means in international ... -
Uncertainty assessment for detection of spoofing attacks to speaker verification systems using a Bayesian approach
(Elsevier, 2022-02)There has been tremendous progress in automatic speaker verification systems over the last decade. Still, spoofing attacks pose a significant challenge to their deployment. Even though there are various attack techniques ... -
Uncertainty assessment for speaker verification systems using a bayesian approach
(2021-01-18)The Automatic Speaker Verification (ASV) systems are developed to discriminate the genuine speakers from the spoofing attacks and they are also used as a security application in various industries (e.g., Banking and ... -
Uncertainty in risk of highway bridges assessed for integrated seismic and flood hazards
(Taylor and Francis, 2017-11-24)Probabilistic risk assessment for bridges under natural hazards is of great interest to engineers for the development of risk mitigation strategies and implementation plans. The present study evaluates risk of an existing ... -
Uncertainty-aware deep classifiers using generative models
(Association for the Advancement of Artificial Intelligence, 2020)Deep neural networks are often ignorant about what they do not know and overconfident when they make uninformed predictions. Some recent approaches quantify classification uncertainty directly by training the model to ... -
Uncertainty-aware situational understanding
(SPIE, 2019)Situational understanding is impossible without causal reasoning and reasoning under and about uncertainty, i.e. prob-abilistic reasoning and reasoning about the confidence in the uncertainty assessment. We therefore ... -
Underlying factors of ups and downs in financial leverage overtime
(Sage, 2017-09-01)We present new stylized facts on the underlying reasons of US hospitality and tourism firms’ fluctuating levels of financial leverage during the period 1990–2015 using comprehensive micro- and macro-level accounting data ... -
Understanding household healthcare expenditure can promote health policy reform
(Cambridge University Press, 2023)Studies of health care expenditure often exclude explanatory variables measuring wealth, despite the intuitive importance and policy relevance. We use the Household, Income and Labour Dynamics in Australia Survey to assess ... -
Understanding pedestrian road crossing behavior
While cities tend to grow in terms of both land and population, millions of people from different backgrounds, social classes, and demographics living in a complex system like a city, requires some regularization. Car-centered ... -
Understanding selectivity on Germanium/SiO2 chemical mechanical planarization through design of experiments
(Cambridge University Press, 2015)The continuous trend of achieving more complex microelectronics with smaller nodes yet larger wafer sizes in microelectronics manufacturing lead to aggressive development requirements for chemical mechanical planarization ... -
Understanding the 21st century's specific Eurasian regional security and energy security parameters in the Turkish-American relationship: A case study on South Caucasus and Central Asia
(Peter Lang AG, 2020-07-15)Eurasia has been of great importance for many centuries due to its possession of strategic trade routes and energy resources. Within this context, several states within this region, as well as outside powers, have been ...
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