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Article
Publication date: 12 January 2021

Kostja Makarovič, Darko Belavič, Barbara Malič, Andreja Benčan, Franci Kovač and Janez Holc

The purpose of this study is the design, fabrication and evaluation of a miniature ozone generator using the principle of electric discharge are presented.

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Abstract

Purpose

The purpose of this study is the design, fabrication and evaluation of a miniature ozone generator using the principle of electric discharge are presented.

Design/methodology/approach

The device was fabricated using a low-temperature co-fired ceramics (LTCC) technology, by which a multilayered ceramic structure with integrated electrodes, buried channels and cavities in micro and millimeter scales was realized.

Findings

The developed ozone generator with the dimensions of 63.6 × 41.8 × 1.3 mm produces approximately 1 vol. % of ozone in oxygen flow of 15 ml/min, at an applied voltage of 7 kV.

Originality/value

A miniature ozone generator, manufactured in LTCC technology, produces high amount of ozone and more than it is described in the available references or in datasheets of commercial devices of similar size.

Details

Microelectronics International, vol. 38 no. 1
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 3 August 2015

Darko Belavič, Marko Hrovat, Kostja Makarovič, Gregor Dolanč, Andrej Pohar, Stanko Hočevar and Barbara Malič

– The purpose of this paper is to present the research activity and results to research and development society on the field of ceramic microsystems.

203

Abstract

Purpose

The purpose of this paper is to present the research activity and results to research and development society on the field of ceramic microsystems.

Design/methodology/approach

The chemical reactor was developed as a non-conventional application of low temperature co-fired ceramic (LTCC) and thick-film technologies. In the ceramic reactor with a large-volume, buried cavity, filled with a catalyst, the reaction between water and methanol produces hydrogen and carbon dioxide (together with traces of carbon monoxide). The LTCC ceramic three-dimensional (3D) structure consists of a reaction chamber, two inlet channels, an inlet mixing channel, an inlet distributor, an outlet collector and an outlet channel. The inlet and outlet fluidic barriers for the catalyst of the reaction chamber are made with two “grid lines”.

Findings

A 3D ceramic structure made by LTCC technology was successfully designed and developed for chemical reactor – methanol decomposition.

Research limitations/implications

Research activity includes the design and the capability of materials and technology (LTCC) to fabricate chemical reactor with large cavity. But further dimensions-scale-up is limited.

Practical implications

The technology for the fabrication of LTCC-based chemical reactor was developed and implemented in system for methanol decomposition.

Originality/value

The approach (large-volume cavity in ceramic structure), which has been developed, can be used for other type of reactors also.

Details

Microelectronics International, vol. 32 no. 3
Type: Research Article
ISSN: 1356-5362

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Article
Publication date: 1 May 1977

The case, briefly reported in the last issue of BFJ, an appeal to a Milk and Dairies Tribunal arising out of a local authority's refusal to grant a licence to a milk distributor…

169

Abstract

The case, briefly reported in the last issue of BFJ, an appeal to a Milk and Dairies Tribunal arising out of a local authority's refusal to grant a licence to a milk distributor because he failed to comply with a requirement that he should provide protective curtains to his milk floats, was a rare and in many ways, an interesting event. The Tribunal in this case was set up under reg. 16(2) (f), Milk (Special Designation) Regulations, 1963, constituted in accordance with Part I, clause 2 (2), Schedule 4 of the Regulations. Part II outlines procedure for such tribunals. The Tribunal is similar to that authorized by S.30, Food and Drugs Act, 1955, which deals with the registration of dairymen, dairy farms and farmers, and the Milk and Dairies (General) Regulations, 1959. Part II, Schedule 2 of the Act provided for reference to a tribunal of appeals against refusal or cancellation of registration by the Ministry, but of producers only. A local authority's power to refuse to register or cancellation contained in Part I, Schedule 2 provided for no such reference and related to instances where “public health is or is likely to be endangered by any act or default” of such a person, who was given the right of appeal against refusal to register, etc., to a magistrates' court. No such limitation exists in respect of the revoking, suspending, refusal to renew a licence under the Milk (Special Designation) Regulations, 1963; an appeal against same lies to the Minister, who must refer the matter to a tribunal, if the person so requests. This occurred in the case under discussion.

Details

British Food Journal, vol. 79 no. 5
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 1 January 1975

In these days of jargon and slang, to the purist it must seem that little is described by its real name, that is, during conversation. Most people refer to the city as “the smoke”…

164

Abstract

In these days of jargon and slang, to the purist it must seem that little is described by its real name, that is, during conversation. Most people refer to the city as “the smoke” and the city‐dweller's pseudonym for the country is “out in the sticks”, which, of course, could mean that “the sticks” are kindling to a fire that has not been lit, with the city “smoke” as the end‐product of the fire that is burning up those who rush hither and thither in its bedlamite streets and ugly office blocks. The cottage, the church and inn no longer completely fill the lives of the villagers; they now have piped water supplies, electricity and telephones; deep freezers, colour television and cars; they have moved closer to the city standards of comfort and convenience without losing any of the enduring qualities which make them different. And the countryman is very different to the town‐dweller—in outlook, habit and countenance. Even the villager who works in the town and city, and nowadays there are many of them, would not change his home in the country for a flat or terrace house in a mean street, despite the long journeying to and fro. At one time, it had to be a special type of girl who chose a home in these rural settings, with few or perhaps no neighbours and no corner‐shop, but now more and more are realizing that life in a village is easier on the whole family.

Details

British Food Journal, vol. 77 no. 1
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 24 June 2024

Raul Szekely, Oliver Mason, David M. Frohlich and Elizabeth Alexandra Barley

This study aims to pilot-test the acceptability, feasibility, preliminary efficacy and user experience of an animated virtual reality (VR) game (“Goliath: Playing with Reality”…

282

Abstract

Purpose

This study aims to pilot-test the acceptability, feasibility, preliminary efficacy and user experience of an animated virtual reality (VR) game (“Goliath: Playing with Reality”) aimed at reducing stigma related to psychosis and schizophrenia among health-care students and trainees.

Design/methodology/approach

A mixed-methods design was used. Sixteen trainee clinical psychologists with experience working with service users with psychosis/schizophrenia engaged with the VR game using a headset and controllers, and completed measures before and after. Quantitative measures assessing intervention acceptability, appropriateness and feasibility were collected and analysed descriptively. These were complemented by qualitative feedback on user experience, analysed through content analysis. Pre- and post-intervention mental health stigma-related measures were also collected and analysed inferentially.

Findings

Most participants found the VR game acceptable, appropriate and feasible for reducing mental health stigma. Although there were no significant changes in stigma-related measures, participants were impressed by the immersive storytelling and the symbolic portrayal of psychosis. Participants also valued the educational aspect, empathised with people living with psychosis/schizophrenia and experienced a range of emotional reactions. However, participants noted usability concerns, and suggestions for improvement were made.

Originality/value

This is one of the first studies to show the potential of “Goliath: Playing with Reality” as a mental health educational intervention for health-care students and trainees. Drawing on narrative theory and immersive-interactive storytelling techniques, the VR game provides experiences that can foster narrative engagement and emotional connection, potentially enhancing its effectiveness in mental health stigma reduction efforts.

Details

Mental Health and Digital Technologies, vol. 1 no. 2
Type: Research Article
ISSN: 2976-8756

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