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Wyszukujesz frazę "Braun, T." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
The need for sustainable technology diffusion in mining: achieving the use of belt conveyor systems in the German hard-rock quarrying industry
Autorzy:
Braun, T.
Hennig, A.
Lottermoser, B. G.
Powiązania:
https://bibliotekanauki.pl/articles/91929.pdf
Data publikacji:
2017
Wydawca:
Główny Instytut Górnictwa
Tematy:
transportation
technology diffusion
sustainable mining
belt conveyor
energy efficiency
cluster analysis
transport
dyfuzja technologii
górnictwo zrównoważone
przenośnik taśmowy
wydajność energetyczna
analiza skupień
Opis:
The movement of raw materials can be one of the most challenging tasks in open pit mining, with truck transportation representing the largest factor in mining costs and resulting in major greenhouse gas (GHG) emissions. In this study, the transportation methods of bulk materials within German hard-rock open pit mines were investigated. Approximately 450 quarries were studied for their production tonnage, lease areas, mined rock type as well as mining methods and processing equipment. The results demonstrate that 90% of the operations use truck-based transportation methods, with the remainder relying partly or completely on continuous conveyor-based systems. The installation of continuous conveyors compared to trucks represents a real alternative because of reduced dead load, reduced GHG emissions and in many cases even reduced costs. Thus, for in-pit haulage in quarries sustainable technology substitutions exist that are yet to be adopted by the German quarrying industry. As this study shows, in the future the diffusion of sustainable technologies requires site champions and large-scale case studies that demonstrate their successful introduction in the mining value chain.
Źródło:
Journal of Sustainable Mining; 2017, 16, 1; 24-30
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collectivity and Periodic Orbits in a Chain of Interacting, Kicked Spins
Autorzy:
Akila, M.
Waltner, D.
Gutkin, B.
Braun, P.
Guhr, T.
Powiązania:
https://bibliotekanauki.pl/articles/1030009.pdf
Data publikacji:
2017-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
quantum chaos
many-body systems
semiclassics
Opis:
The field of quantum chaos originated in the study of spectral statistics for interacting many-body systems, but this heritage was almost forgotten when single-particle systems moved into the focus. In recent years new interest emerged in many-body aspects of quantum chaos. We study a chain of interacting, kicked spins and carry out a semiclassical analysis that is capable of identifying all kinds of genuine many-body periodic orbits. We show that the collective many-body periodic orbits can fully dominate the spectra in certain cases.
Źródło:
Acta Physica Polonica A; 2017, 132, 6; 1661-1665
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CCall-Healthy and Successful Work in Call Centres
Autorzy:
Benninghoven, A.
Bindzius, F.
Braun, D.
Cramer, J.
Ellegast, R.
Flowerday, U.
Genz, A.
Heyden, T.
Pfeiffer, W.
Schittly, D.
Schweer, R.
Stamm, R.
Powiązania:
https://bibliotekanauki.pl/articles/90665.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
call centre
design of work
indoor environment
ergonomics
stress
work organisation
guidelines of good practice
workers with disabilities
telekomunikacja
ergonomia
organizacja pracy
stres
organizacja bezpieczeństwa pracy w zakładzie
centra telefoniczne
projektowanie miejsc pracy
Opis:
Call centre workplaces are in many ways a challenge to occupational health and safety. The occupation itself can be described as an information technology-supported, communication-intensive form of work with often unusual working hours and a high rate of part-time employment. Data on the employee turnover as well as absenteeism related to occupational disability is quite contradictory. Occupational safety and its proponents still have to find new ways into the corporate structures and cultures of this relatively new and rapidly growing branch of industry. In a 2-year research and development project, using a holistic approach and under consideration of all the relevant disciplines, call centre workplaces were studied, and organisational measures were developed and field tested by putting them into practice. Practical help was developed for a sustainable strategy for successful and healthy work in call centres.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 4; 409-421
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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