Personal electronic devices such as cell phones and tablets continue to decrease in size while the number of features and add-ons keep increasing. One particular feature of great interest is an integrated projector system. Laser pico-projectors have been considered, but the technology has not been developed enough to warrant integration. With new advancements in diode technology and MEMS device...

In this paper, we develop a framework to analyze pico cells with randomly walking users. We model the user movements by a random walk with exponential wandering times. We partition each pico cell into disjoint regions based on the transmission rates allocated and model each rate region as an equivalent step in the random walk model. We further use queuing theoretic tools to obtain explicit expr...

In the normal operation conditions of a pico satellite, conventional Unscented Kalman Filter (UKF) gives sufficiently good estimation results. However, if the measurements are not reliable because of any kind of malfunction in the estimation system, UKF gives inaccurate results and diverges by time. This study, introduces Robust Unscented Kalman Filter (RUKF) algorithms with the filter gain cor...

Intracellular pressure has a multitude of functions in cells surrounded by a cell wall or similar matrix in all kingdoms of life. The functions include cell growth, nastic movements, and penetration of tissue by parasites. The precise measurement of intracellular pressure in the majority of cells, however, remains difficult or impossible due to their small size and/or sensitivity to manipulatio...

The development of large-area homogeneous photo-detectors with sub-millimeter path lengths for direct Cherenkov light and for secondary-electrons opens the possibility of large time-of-flight systems for relativistic particles with resolutions in the pico-second range. Modern ASIC techniques allow fast multi-channel front-end electronics capable of sub-pico-second resolution directly integrated...

In this paper, we tackle the issue related to the retrieval of the best evidence that fits with a PICO (Population, Intervention, Comparison and Outcome) question. We propose a new document ranking algorithm that relies on semantic based query expansion bounded by the local search context to better discard irrelevant documents. Experiments using a standard dataset including 423 PICO questions a...

This paper focuses on the effect on BER, Q-Factor for a four user OCDMA communication system with varying Jitter. Performance of the OCDMA communication system has been evaluated in terms of bit error rate and Q factor with jitter varying from 0 pico-seconds to 3.0 picoseconds in steps of 0.5 pico-seconds. Simulations were carried out using commercially available simulator from Rsoft, OPTSIM. K...

275 Cough peak flow in preschoolers: success rate and test-retest reproducibility Pico de fluxo da tosse em pré-escolares: taxa de sucesso e reprodutibilidade teste-reteste Pico de flujo de tos en niños en edad preescolar: tasa de éxito y reproducibilidad test-retest Danielle Corrêa França1, Paulo Augusto Moreira Camargos2, Bruna da Silva Pinto Pinheiro Vieira3, Danielle Aparecida Gomes Pereira...

No hay resúmenes disponibles. Realidad: Revista de Ciencias Sociales y Humanidades No. 161, 2023: 62-63.

We define restricted ensembles, called pico-canonical ensembles, for a statistical-mechanical description of the metastable and glassy phases. In this approach, time-evolution is Markovian, with temperature dependent rates. Below a particular glass-temperature, the system is strongly non-ergodic, and the phase space breaks up into a large number of mutually disconnected sectors. Averages are ca...