Search results for "control system"
showing 10 items of 971 documents
A innovative laterals hydro floating tilting systems for USV or surface nautical vehicles
2015
The proposed project shows the results obtained in the implementation and testing in lacustrine and marine environment of an innovative laterals hydro floating tilting systems control for USV or remote/autonomous surface nautical vehicles. This vehicle is based on a pending patent belonging to Palermo University (Patent Pending RM2012A000209 and RM2012A000209). The system allows, during operation as a vehicle USV, set changes sailing trim and make turns with very narrow angle with little shunting movements. In fact the main benefits obtained were able to change or adjust the navigation structure by changing the tilt of one or two hydro floating during navigation without intervening directly…
Search for Neutrons as Evidence of Cold Fusion
1992
In this paper investigations performed at the University of Palermo in an attempt to reproduce the cold fusion experiment are reported. The search was devoted to detecting neutron emission from palladium electrodes electrolytically charged with deuterium. In no test was neutron emission significantly over the background observed, either in bursts or continuous. Results of a few tests are reported. For the more sensitive test, an upper limit for D(d,n) cold fusion (at 98% confidence level) of {lambda}{sub f} {lt} 3.6 {times} 10{sup {minus}24} fusion/s {center dot} d-d pair is determined.
Iekšējās kontroles sistēma un tās novērtējums SIA “Firma Orions”
2018
Iekšējai kontroles sistēmai ir būtiska loma uzņēmuma efektīvas un normatīvajām prasībām atbilstīgas darbības nodrošināšanā. Mazos uzņēmumos izstrādātā iekšējās kontroles sistēma var būt nepilnīga, tās detalizācija – nepietiekama. Diplomdarba mērķis ir, pamatojoties uz teorētiskās informācijas izpēti un analīzi par iekšējās kontroles sistēmu, veikt SIA “Firma Orions” iekšējās kontroles sistēmas novērtējumu un izstrādāt atbilstošus priekšlikumus tās trūkumu novēršanai, uzlabošanai. Pētījumā tika vērtēta SIA “Firma Orions” iekšējās kontroles sistēma. Autore secina, ka tā izstrādāta daļēji. Nepieciešamos pasākumus tās trūkumu novēršanai un pilnveidošanai izstrādā atbilstošos priekšlikumos. Atsl…
Strategic thinking and accounting: potentials and pitfalls from a managerial perspective
2019
This study explores the strategic thinking of managers from an accounting perspective. By building on interview data from managers working with strategic roles in various organizations, an understanding is offered of the experienced potentials and pitfalls of accounting in strategic thinking. The results are elaborated into a framework presenting the dual nature of accounting in strategic contexts. This study suggests that the benefits and pitfalls of accounting for strategic thinking constitute a paradoxical duality, which cannot be fully solved, but must be addressed by practising managers. The observed role of accounting in managers’ strategic thinking also offers implications for manage…
Sensitivity of a mesoscale model to different convective parameterization schemes in a heavy rain event
2011
Abstract. The Valencia region, on the Mediterranean coast of the Iberian Peninsula, is propitious to heavy precipitation, especially the area encompassing the South of Valencia province and the North of the Alicante province. In October 2007 a torrential rain affected the aforementioned area, producing accumulated rainfall values greater than 400 mm in less than 24 h and flash-floods that caused extensive economic losses and human casualties. This rain event has been studied in numerical experiments using the Regional Atmospheric Modeling System. The present paper deals with the effect of using the different convective parameterizations (CP) currently implemented in the Regional Atmospheric…
Optical Methods for River Monitoring: A Simulation-Based Approach to Explore Optimal Experimental Setup for LSPIV
2021
Recent advances in image-based methods for environmental monitoring are opening new frontiers for remote streamflow measurements in natural environments. Such techniques offer numerous advantages compared to traditional approaches. Despite the wide availability of cost-effective devices and software for image processing, these techniques are still rarely systematically implemented in practical applications, probably due to the lack of consistent operational protocols for both phases of images acquisition and processing. In this work, the optimal experimental setup for LSPIV based flow velocity measurements under different conditions is explored using the software PIVlab, investigating perfo…
Approaching electrical tomography
2009
A general approach to electrical tomography is here described, based on the distribution of the experimental data to the set of voxels in which the subsoil has been divided. This approach utilizes the sensitivity coefficients as factors of the convolution procedure to execute the back projection of the data, to obtain the 3D pictures of the subsoil. A subsequent probabilistic filtering technique is described to improve the pictures in view of sharp boundary models. Some models are finally presented, mostly regarding cubic buried anomalies as well as pipe-shaped and L-shaped anomalies.
Investing in strategic development : Management control of business model and managerial innovations
2018
Purpose This paper aims to explore management control in the strategic development of business model and managerial innovations. The issue is approached from the perspective of managerial work, aiming to outline what managers consider as essential elements of management control in these often iterative and learning-intensive developmental activities. Design/methodology/approach The study is based on the views of 20 managers engaged in strategic development and its control in various organisations. The interview data consist of the respondents’ experiences and project cases involving non-technological innovations. Qualitative content analysis is used to identify three key concepts of manage…
Does business strategy and management control system fit determine performance?
2021
PurposeThis study examines the relationship between business strategy, management control system (MCS) type and performance. Does the alignment of organisation business strategy and MCS fresult in better performance?Design/methodology/approachThis study draws on the business strategy and MCS type literature to identify business strategies and MCS types. A scoring method was used to identify business strategy types and cluster analysis to identify MCS types from a sample of 80 firms and 621 firm-years of data. Analysis of variance was used analyse the differences.FindingsFour types of MCS were identified and were labelled clan, adhocracy, market and hierarchy. The sample was split into defen…
Compensated transfer entropy as a tool for reliably estimating information transfer in physiological time series
2013
We present a framework for the estimation of transfer entropy (TE) under the conditions typical of physiological system analysis, featuring short multivariate time series and the presence of instantaneous causality (IC). The framework is based on recognizing that TE can be interpreted as the difference between two conditional entropy (CE) terms, and builds on an efficient CE estimator that compensates for the bias occurring for high dimensional conditioning vectors and follows a sequential embedding procedure whereby the conditioning vectors are formed progressively according to a criterion for CE minimization. The issue of IC is faced accounting for zero-lag interactions according to two a…