Search results for " Rotation"

<title>Achieving high performances at lower cost for real-time image rotation by using dynamic reconfiguration</title>

2001

FPGA components are widely used today to perform various algorithms (digital filtering) in real time. The emergence of Dynamically Reconfigurable (DR) FPGAs made it possible to reduce the number of necessary resources to carry out an image processing application (tasks chain). We present in this article an image processing application (image rotation) that exploits the FPGA's dynamic reconfiguration feature. A comparison is undertaken between the dynamic and static reconfiguration by using two criteria, cost and performance criteria. For the sake of testing the validity of our approach in terms of Algorithm and Architecture Adequacy , we realized an AT40K40 based board ARDOISE.

ROTATIONAL TOLERANCES IN ABUTMENT-IMPLANT CONNECTION FOR ORIGINAL AND COMPATIBLE ABUTMENTS

2022

Synthesis and antiproliferative activity of triazenoindazoles and triazenopyrazoles: a comparative study.

2003

Several triazenoindazoles and triazenopyrazoles were prepared transforming the appropriate aminoindazoles and aminopyrazoles in the corresponding diazonium salts which were reacted with dimethylamine, diethylamine and pyrrolidine. All the triazenes were tested for their antiproliferative activity against K562, HL60, L1210 and MCF7 cell lines. The biological data showed that the benzocondensation plays a positive role on the antiproliferative activity. The (1)H-NMR spectra showed that the rotational barrier around the N(2)-N(3) bond in the triazene group can be influenced both by the position of this group in the indazole nucleus and by the substitution pattern in the benzene moiety.

Nicethamid‐Analoge, V Untersuchungen zur gehinderten internen Rotation bei N , N ‐Dimethylpyridinamiden

1975

Die Synthese von homologen, vinylogen und Kernalkylierten N,N-Dimethylnicotinamiden wird beschrieben und die Energiebarriere bei der gehinderten Rotation der Amidgruppe mittels 1H-NMR-Spektroskopie bestimmt. Nicethamide Analogues, V. Investigations of Hindered Internal Rotation in N,N-Dimethylpyridinamides The synthesis of homologue, vinylogue and ringalkylated N,N-dimethyl nicotinamides is described and the energy barrier of the hindered rotation of the amide group determined by means of 1H-n. m. r. spectroscopy.

Moving multi-loads problem in layered cracked beams with interlayer slip

2017

This contribution concerns the vibration response of layered cracked uniform beams with interlayer slip under moving multiple loads. Considering a linear constitutive relation between the horizontal slip and the interlaminar shear force, the Euler-Bernoulli hypothesis is assumed to hold for each layer separately. Modeling cracks as internal elastic rotational joints, related discontinuities of the response variables are treated by the theory of generalized functions. In this manner, exact eigenfunctions are derived from a characteristic equation built as determinant of 6x6 matrix, for any number of cracks. Building pertinent orthogonality conditions for the deflection eigenfunctions, the re…

Psychological consequences of fixed-term employment and perceived job insecurity among health care staff

2005

The present study sought to clarify the roles of fixed-term employment and perceived job insecurity in relation to an employee's job attitudes (job satisfaction, turnover intentions) and well-being (work engagement, job exhaustion). Specifically, we examined which of the two situations, high subjective job insecurity and a permanent job (i.e., violation hypothesis) or high subjective job insecurity and a fixed-term job (i.e., intensification hypothesis), would lead to the most negative job attitudes and well-being. Data from 736 employees in one Finnish health care district were collected by questionnaires. The results supported the violation hypothesis: Under conditions of high perceived j…

Extending the sGLOH descriptor

2015

This paper proposes an extension of the sGLOH keypoint descriptor [3] which improves its robustness and discriminability. The sGLOH descriptor can handle discrete rotations by a cyclic shift of its elements thanks to its circular structure, but its performance can decrease when the keypoint relative rotation is in between two sGLOH discrete rotations. The proposed extension couples together two sGLOH descriptors for the same patch with different rotations in order to cope with this issue and it can be also applied straightly to the sCOr and sGOr matching strategies of sGLOH. Experimental results show a consistent improvement of the descriptor discriminability, while different setups can be …

Talent identification and development tools

2014

Purpose – This paper aims to contribute to talent management literature by examining empirically the relationship between talent identification and development tools. Design/methodology/approach – The study sample consisted of 112 Argentina-based companies. All participants completed an online survey containing a list of identification and development practices. Responses were analyzed with SPSS 19. Findings – Results show that companies running more talent identification processes (performance management and potential identification) make use of a greater number of development tools. Significant differences were observed in the use of all development tools analyzed, with the exception of …

Geological and geomorphological aspects of the landslide of the Cathedral of Agrigento (Sicily-Italy)

2014

Synthetic transformation of hydroxymatairesinol from Norway spruce (Picea abies) to 7-hydroxysecoisolariciresinol, (+)-lariciresinol and (+)-cyclolar…

2003

We have developed a method for the transformation of hydroxymatairesinol to optically pure (+)-lariciresinol and (+)-cyclolariciresinol via the hitherto unreported lignan 7-hydroxysecoisolariciresinol. The two naturally occurring isomers of hydroxymatairesinol were reduced with LiAlH4 to a mixture of two epimers of 7-hydroxysecoisolariciresinol, which were further selectively transformed to (+)-lariciresinol and (+)-cyclolariciresinol by an acid catalysed intramolecular cyclisation reaction. The structure of the major isomer of 7-hydroxysecoisolariciresinol was confirmed by X-ray crystallography and thereby also the absolute configurations of the two isomers of hydroxymatairesinol were unam…