Search results for "Frame"

A new Intellectual capital framework in the no profit sector

2014

Intellectual capital (IC) is a key driver in value creation. According with the above more and more companies, for profit as well as no profit organizations (NPOs), direct their attention to new tools able to communicate to the stakeholders their intangible assets as value creator driver. IC in for-profit companies, but especially in NPOs is positively correlated with the performance. For this reason, during the last years the interest in the importance of IC in NPOs is increased. IC report becomes a fundamental tool in the disclosure of the NPOs’activities. Nowdays is necessary to use a correct frame work to represent the IC in terms of knowledge, skill, procedures and relationship spread …

A performance analysis of block ACK scheme for IEEE 802.11e networks

2010

The demand for the IEEE 802.11 wireless local-area networks (WLANs) has been drastically increasing along with many emerging applications and services over WLAN. However, the IEEE 802.11 medium access control (MAC) is known to be limited in terms of its throughput performance due to the high MAC overhead, such as interframe spaces (IFS) or per-frame based acknowledgement (ACK) frame transmissions. The IEEE 802.11e MAC introduces the block ACK scheme for improving the system efficiency of the WLAN. Using the block ACK scheme can reduce the ACK transmission overhead by integrating multiple ACKs for a number of data frames into a bitmap that is contained in a block ACK frame, thus increasing t…

Analysis of the thermo-mechanical behaviour of IFMIF target assembly integrated with its support framework

2014

Effects of post-filtering in grid-synchronization algorithms under grid faults

2018

Abstract The spread of distributed generation systems has reinforced concerns and requirements on grid-tied power converters. The synchronization with the utility voltage vector is a major concern. In the literature, algorithms based on Phase Locked Loops are extensively presented. In spite of adequate performances under ideal and balanced grid conditions, under grid faults great inaccuracies arise. Shortcomings are overcome by advanced algorithms at the expenses of the complexity and computational cost. In this paper, grid synchronization algorithms are addressed. A solution is proposed by introducing a new post-filter stage in a Decoupled Double Synchronous Reference Frame not affecting, …

The Relativity of Reality

2020

According to conceptual relativism, reality crucially depends on the mind and the language of a person. The world does not present itself as already made or arranged. People have different ways of categorising and conceptualising the world. Because according to conceptual relativism, what exists also depends on conceptual frameworks, it can also be called ontological relativism. We must note that ontological relativism does not mean that the mind creates or generates reality and its objects as a craftsman creates a ceramic object. That would be idealism. Relativism does not deny that the world exists and affects our senses, experiences and knowledge. But despite this, we cannot know how the…

Identità, produzione di senso, appropriazione e consumo.Una ricerca esplorativa sulla musica napoletana a Palermo

2016

La musica napoletana diviene espressione di una cultura locale che si esprime attraverso un particolare consumo culturale e in quartieri specifici della città di Palermo. Centrale è da una parte il rapporto tra le forme, i contenuti, gli attori e le strutture della società all'interno delle quali si consuma questo genere musicale e dall'altra, l'utilizzo che di questo viene fatto con riferimento alla struttura della classe sociale individuata.

Dual-beam confocal light-sheet microscopy via flexible acousto-optic deflector

2019

Confocal detection in digital scanned laser light-sheet fluorescence microscopy (DSLM) has been established as a gold standard method to improve image quality. The selective line detection of a complementary metal-oxide-semiconductor camera (CMOS) working in rolling shutter mode allows the rejection of out-of-focus and scattered light, thus reducing background signal during image formation. Most modern CMOS have two rolling shutters, but usually only a single illuminating beam is used, halving the maximum obtainable frame rate. We report on the capability to recover the full image acquisition rate via dual confocal DSLM by using an acoustooptic deflector. Such a simple solution enables us t…

Dissecting and Reassembling Color Correction Algorithms for Image Stitching

2018

This paper introduces a new compositional framework for classifying color correction methods according to their two main computational units. The framework was used to dissect fifteen among the best color correction algorithms and the computational units so derived, with the addition of four new units specifically designed for this work, were then reassembled in a combinatorial way to originate about one hundred distinct color correction methods, most of which never considered before. The above color correction methods were tested on three different existing datasets, including both real and artificial color transformations, plus a novel dataset of real image pairs categorized according to …

Polymorphism of mytilin B mRNA is not traslated into mature peptide

2008

Diversity of mRNAs from mytilin B, one of the five mytilins identified in the Mediterranean mussel, Mytilus galloprovincialis, has been investigated from circulating hemocytes. One mussel expressed simultaneously two to ten different mytilin B mRNAs as observed in denaturing gradient gel electrophoresis (DGGE), defining 10 individual DGGE patterns (named A to J) within the mussels from Messina, Sicily (Italy). Three patterns accounted for 79% of the individuals whereas other patterns were found in only 2-7% of the 57 analyzed mussels. Base mutations were observed at specific locations, mainly within COOH-terminus and 3'UTR, leading to 36 nucleotide sequence variants and 21 different coding …

Predicting the Success of Blastocyst Implantation from Morphokinetic Parameters Estimated through CNNs and Sum of Absolute Differences

2019

The process of In Vitro Fertilization deals nowadays with the challenge of selecting viable embryos with the highest probability of success in the implantation. In this topic, we present a computer-vision-based system to analyze the videos related to days of embryo development which automatically extracts morphokinetic features and estimates the success of implantation. A robust algorithm to detect the embryo in the culture image is proposed to avoid artifacts. Then, the ability of Convolutional Neural Networks (CNNs) for predicting the number of cells per frame is novelty combined with the Sum of Absolute Differences (SAD) signal in charge of capturing the amount of intensity changes durin…