Search results for "Mask"

Masculinity in flux? : Male managers navigating between work and family

2020

The article sheds light on male managers’ experience as fathers in a post-Soviet context in Lithuania. This empirical study of 12 male managers’ experiences of work-family integration (WFI), their ways of coping with negative experiences, and the role of organizations in reducing conflict and enriching WFI, reveal the emergence of a new paternal identity: fathers who perceive their role as caregivers but for whom this is still subordinate to the dominant role of the breadwinner. Relying on their wife is a man’s dominant coping strategy. Organizations are perceived as family unfriendly. The managerial implications of the need for organizational support are discussed. peerReviewed

Homoseksuaalisuuden representaatiot urheilujournalismissa 2014

2017

Homoseksuaalisuus nousi vuoden 2014 alkupuolella urheilujournalismin keskiöön uimari Ari- Pekka Liukkosen kaapista tulemisen myötä. Suomalainen mieshuippu-urheilija kertoi homoseksuaalisesta suuntautumisestaan ensimmäistä kertaa ja teki sen vieläpä suorassa tv- lähetyksessä. Asiasta jatkouutisoitiin viikkoja varsinaisen tapahtuman jälkeen. Tässä tutkimuksessa tutkitaan vuoden 2014 homoseksuaalisuutta jollain tavoin sivuavaa urheilu-uutisointia Suomen kahdeksassa levikiltään suurimmassa sanomalehdessä, joilla on erillinen urheilutoimitus (HS, IS, IL, Aamulehti, Turun Sanomat, Kaleva, Keskisuomalainen ja Savon Sanomat). Verkkouutissivuistoista materiaalia on lisäksi kerätty …

Guidelines to Select Between Self-Contained Electro-Hydraulic and Electro-Mechanical Cylinder

2020

This research paper presents guidelines on how to select between self-contained electro-hydraulic and electromechanical cylinders. An example based on the motion control of a single-boom crane is studied. The sizing process of the different off-the-shelf components is analyzed in terms of design impact when replacing a traditional valve-controlled hydraulic cylinder. The self-contained electro-hydraulic solution is the best choice when a risk for high impact forces is present, when the required output power level lies continuously above 2 kW, or when installation space, weight, and cost are critical design objectives. However, the electro-mechanical solution is expected to show more control…

Measurement of W-pair production in $e^{+}e^{-}$ collisions at centre-of-mass energies from 183 to 209 GeV

2004

The W + W- production cross section is measured from a data sample corresponding to a total integrated luminosity of 683 pb-1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 183 to 209 GeV. Individual cross sections for the different topologies arising from W decays into leptons or hadrons, as well as the total W-pair cross section are given at eight centre-of-mass energies. The results are found to be in agreement with recently developed Standard Model calculations at the one percent level. The hadronic branching fraction of the W boson is measured to be B(W→qq¯) = 67.13 ± 0.37(stat.) ± 0.15(syst.)%, from which the CKM matrix element |\ensuremathVcs| is determined…

Modelling and Detecting Faults of Permanent Magnet Synchronous Motors in Dynamic Operations

2022

Permanent magnet synchronous motors (PMSMs) have played a key role in commercial and industrial applications, i.e. electric vehicles and wind turbines. They are popular due to their high efficiency, control simplification and large torque-to-size ratio although they are expensive. A fault will eventually occur in an operating PMSM, either by improper maintenance or wear from thermal and mechanical stresses. The most frequent PMSM faults are bearing faults, short-circuit and eccentricity. PMSM may also suffer from demagnetisation, which is unique in permanent magnet machines. Condition monitoring or fault diagnosis schemes are necessary for detecting and identifying these faults early in the…

Latvijas Vēstures Institūta Žurnāls. 2015, Nr. 1 (94)

2015

Valsts kultūrkapitāla fonds

2013

To identify factors limiting performance in multitone intensity discrimination, we presented sequences of five pure tones alternating in level between loud (85 dB SPL) and soft (30, 55, or 80 dB SPL). In the “overall-intensity task”, listeners detected a level increment on all of the five tones. In the “masking task”, the level increment was imposed only on the soft tones, rendering the soft tones targets and loud tones task-irrelevant maskers. Decision weights quantifying the importance of the five tone levels for the decision were estimated using methods of molecular psychophysics. Compatible with previous studies, listeners placed higher weights on the loud tones than on the soft tones i…

Effect of luminance on photopic visual acuity in the presence of laser speckle

1988

Visual acuity in coherent and incoherent light has been determined by using square-wave gratings of 100% contrast. Luminance was varied from 3 to 400 cd/m2. Coherent illumination resulted in a 40% loss of visual acuity. This is probably due to the masking effect of coherent spatial noise (speckle). However, the most interesting finding is the change in shape of the photopic visual-acuity-luminance function. With coherent illumination, the function is vertically displaced and of a different gradient. An increase in luminance produces a decrease in visual acuity. This indicates that the masking effect of the speckle is dependent on luminance. Two observers were used, and similar results were …

Modeling of Modified Vehicle Crashworthiness using a Double Compound Pendulum

2022

Vehicle crash modeling has been a challenge for researchers for several decades. Occupant injury prevention and prediction is a critical area within vehicle safety design. The modeling of material failure in structural members during a full frontal crash has been presented in this paper. This study presents a Lumped Parameter Model (LPM) with an elastic double compound pendulum replicating the impact kinematics. The model defined using Lagrangian formulation; presents a novel methodology to represent material fracture caused due to heat affected zones or welding in Ultra High Strength Steels (UHSS) in a non-linear crash event. The material fracture leads to rotation of the vehicle; presente…

A Self-Contained Electro-Hydraulic Cylinder: Modeling, Control Design, Simulation and Experimental Validation

2018

Master's thesis Mechatronics MAS500 - University of Agder 2018 In the constant effort to improve the efficiency of hydraulic systems, the pressure drop over hydraulic valves has been one of the major obstacles. In the Self-Contained Electro-Hydraulic Cylinder, the directional valve and the hydraulic power unit have been replaced by a bi-directional axial piston pump and a Permanent Magnet Synchronous Motor. Actuation of the cylinder is performed by controlling the direction of rotation and the velocity of the motor. Originally the purpose of this project was to: "Design a proper control algorithm for an existing novel selfcontained electro-hydraulic cylinder, implement it on the main boom o…