112 research outputs found
Design optimisation of air-fed full pressurised suits
No full textThis article is a post-print version of the published article which may be accessed at the link below.The JET machine and associated facilities require significant maintenance and enhancement installation activities in support of the experimental exploitation programme. A proportion of these activities are within radiological and respiratory hazardous environments. As such, breathing air-fed one-piece pressurised suits provide workers with protection from the inhalation of both airborne tritium and beryllium dust. The design of these suits has essentially developed empirically. There is a practical necessity to improve the design to optimise worker performance, protection and thermal comfort. This paper details the complexity of modeling the three-dimensional thermofluid domain between the inner surface of the suit and under garments that includes mass as well as heat transfer, suiting geometry, human metabolism and respiration and effects of limb movements. The methods used include computational fluid dynamics (CFD), theoretical adaptations of mixed-phase turbulent flow, profile scanning of a suit and actuating life size mannequin and data processing of the images and experimental validation trials. The achievements of the current programme and collaborations are presented in the paper and future endeavors are discussed.The author gratefully acknowledges the loan of the articulated mannequin from the Defence Science and Technology Laboratories. This work was funded jointly by EPSRC and by the European Communities under the contract of Association between EURATOM and UKAEA. The views and opinions expressed herein do not necessarily reflect those of the European Commission. This work was carried out within the framework of EFDA
Implementation Issues and Performance Evaluation of Surface-Mounted PM Machine Drives with Hall Effect Position Sensors and a Vector Tracking Observer
No full textChange Communication within organizations : How perceptions differ between managers and employees in an organizational change
No full textTitle: Change Communication within organizations – How perceptions differ between managers and employees in an organizational change Author: Emma Ender & Fanny Tesch Tutor: Anne-Marie Morhed Purpose: The purpose of this thesis was to study and compare different perceptions of change communication between managers and employees within two smaller organizations. We wanted to examine how the communication process within the change was carried out. We also aimed to compare the results with change communication models of Johansson & Heide (2008) and Lewin (1951), and also existing concepts, to see if our result differed from earlier research. Our key questions to answer were: How do managers communicate a change to the employees in two smaller companies? How do the managers think that the employees perceive the information about the change? How do the employees perceive the information about the change? How does change models from previous research correspond to, or differ from the change process? Method/Material: The material used in this thesis consists of a total of twelve interviews with both managers and employees at two small companies. Main results: The main results shows that communicating a change is complex, and that it is difficult to create models and theories for the phenomenon, as each change is unique. The main results further show that employees and managers have different views regarding change communication. The managers believe the change communication turned out well while the employees required more information afterwards. Although some of the employees already knew about the change there was a small spread of rumours and anxiety among the employees over all. The managers thought a few of the employees might have sensed that something was going to happen. Number of pages: 55 Course: Media and Communication studies C University: Division of Media and Communication, Department of Information Science, Uppsala University Period: Fall 2013 Keywords: Communication, Internal communication, Change Communication, Change, Organizational Change, Perception, managers, employees
Der Niederländische Boden und die Ablagerungen des Rheines und der Maas aus der jüngeren Tertiär- und der älteren Diluvialzeit
No full textCivil Engineering and Geoscience
Developing strategies to facilitate the motivation of nurses rendering quality patient care in rural hospitals : an appreciative inquiry approach
No full textThesis (PhD)--University of Pretoria, 2014.Background and objectives: The purpose of the study was to develop strategies to facilitate
nurses’ motivation for rendering quality patient care in a rural hospital using an Appreciative
Inquiry approach. The objectives of the study were to determine the positive aspects that the
nurses value about the work environment, the nursing profession and their organisation and to
develop strategies to facilitate nurses’ motivation to render quality patient care in rural hospitals.
The strategies that were developed may be used to motivate nurses in rural hospitals or be used
by nurse managers and supervisors in similar poorly resourced rural hospitals in developing
countries.
Methods: An Appreciative Inquiry approach with a qualitative, exploratory, descriptive research
design was used. Data were collected through individual semi-structured interviews and focus
groups. Twenty participants were interviewed. The researcher employed Marshall and Rossman’s
model and that of Tesch to analyse the data. The principles of Guba and Lincoln were used to
ensure the trustworthiness; credibility; transferability, dependability, conformability and authenticity
of the findings.
Results: The findings revealed that factors that motivated nurses were effective feedback about
their performance and for them to be involved in decision making.
Conclusions: The strategies to facilitate motivation of nurses were intended for use by all
managers in rural hospitals. They would also be useful to motivate nurses in similar poorly
resourced rural hospitals in developing countries.lk2014Nursing SciencePhDUnrestricte
Toelichting tot de geomorphologische kaart van IJsselmonde
No full textBeschrijving van de genese van IJsselmonde, specifiek in relatie tot te ligging van het veenpakket. Bevat een bodemkaart, polderkaart en profiele
Receding-horizon adaptive contyrol of aero-optical wavefronts
No full textA new method for adaptive prediction and correction of wavefront errors in adaptive optics (AO) is introduced. The new method is based on receding-horizon control design and an adaptive lattice filter. Experimental results presented illustrate the capability of the new adaptive controller to predict and correct aero-optical wavefronts derived from recent flight-test data. The experimental results compare the performance of the new adaptive controller the performance of a minimum-variance adaptive controller previously used in AO. These results demonstrate the reduced sensitivity of the receding-horizon adaptive controller to high-frequency sensor noiseDelft Center for Systems and ControlElectrical Engineering, Mathematics and Computer Scienc
Cyclooxygenase and CD147 expression in oral squamous cell carcinoma patient samples and cell lines
No full textSynopsis of the genera Sesarma, Metasesarma, Sarmatium and Clistocoeloma, with a key to the determination of the Indo-Pacific species
No full textThe genus Sesarma, established in 1817 by Say to receive an American form has turned out to contain such a large number of species, that it is nowadays one of the most difficult ones to the systematist. No less than about 130 species without the subspecies are included in it. In dealing with so many forms the need of subdivision naturally presents itself, and so de Man in 1887 (Zool. Jahrb. Syst., Bd. 2) firstly distinguished four subgenera, to which in 1895 (Zool. Jahrb. Syst., Bd. 9) he gave the names of Sesarma s.s., Episesarma, Parasesarma and Perisesarma. But already two years afterwards the often tyrannic exigencies of priority in nomenclature induced Miss Rathbun (Proc. Biol. Soc. Washington, v. 11) to alter the first two names into Holometopus and Sesarma s.s. respectively, and in 1909 (Proc. Biol. Soc. Washington, v. 22) this author again substituted the name Chiromantes Gistel for de Man's Perisesarma, so that now only Parasesarma has been left undisturbed.
Every carcinologist will be ready to acknowledge de Man's great merits in affording the most accurate and minute informations about insufficiently-known species and in describing new ones with such accuracy that we may safely follow his lead amongst the intricacies and sometimes bewildering complexities that present itself in Decapod literature. In the particular case we are now dealing with it is he, who has examined by far the greater number of species, at least those from Indo-Pacific origin, and as most of his material is represented in the Leiden Museum the present author has had ample occasion to test the reliability of his own determinations. In some doubtful cases Dr. de Man with never failing helpfulness has been always willing to give his advice and needless t
The Grapsoid genus Pyxidognathus A. Milne-Edwards, with description of a new species
No full textThe genus Pyxidognathus was established by A. Milne-Edwards (Bull.
Soc. Philom. Paris, ser. 7, t. 3, 1878, p. 109) on a species, named by him P. granulosus, that was found in fresh or slightly brackish water in the island of Ovalau. A few months afterwards, in April 1879, de Man described a specimen under the name Hypsilograpsus deldeni nov. gen. nov. spec. (Notes Leyden Mus., v. 1, p. 72), collected by van Delden in 1836 near Manado (Celebes); this specimen, however, was recognized by de Man himself (Notes Leyden Mus., v. 5,1883, p. 159) as being probably identical with the species of Milne-Edwards, having had the opportunity of examining an original drawing of the animal, prepared by the French author.
Dr. de Man has, on my request, kindly sent me this drawing, and after a careful comparison between this and the original Hypsilograpsus specimen, I am fully convinced that the specimens of Milne-Edwards and of de Man belong really to the same species, and that the name Pyxidognathus therefore has priority.
In 1888 de Man made known another species of this genus, P. deïanira (Journ. Linn. Soc. London, v. 22, p. 148, pl. 10, f. 4—6), observed in mangrove-swamps of the Mergui Archipelago, and finally Alcock described a third species P. fluviatilis (Journ. As. Soc. Bengal, v. 69, prt 2, 1900, p. 408, Ill. Zool. „Investigator", Crust., prt 10, 1902, pl. 66, f. 3—3a), collected in fresh water in the Jessore District (British India).
The discovery of a new species, referable to this genus, in a collection belonging to the Amsterdam Zoological Museum, induced me to give an account of Pyxidognathus, the more readily because I could not onl
- …
