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    Wyświetlanie 1-4 z 4
    Tytuł:
    A Perception-Based Method for the Noise Control of Construction Machines
    Autorzy:
    Carletti, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/176980.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    noise control
    acoustic design
    sound quality
    annoyance
    psychoacoustics
    construction machines
    Opis:
    During operation, construction machines generate high noise levels which can adversely affect the health and the job performance of operators. The noise control techniques currently applied to reduce the noise transmitted into the operator cab are all based on the decrease of the sound pressure level. Merely reducing this noise parameter may be suitable for the compliance with the legislative requirements but, unfortunately, it is not sufficient to improve the subjective human response to noise. The absolute necessity to guarantee comfortable and safe conditions for workers, requires a change of perspective and the identification of different noise control criteria able to combine the reduction of noise levels with that of psychophysical descriptors representing those noise attributes related to the subjective acoustical discomfort. This paper presents the results of a study concerning the “customization” of a methodology based on Sound Quality for the noise control of construction machines. The purpose is to define new hearing-related criteria for the noise control able to guarantee not only reduced noise levels at the operator position but also a reduced annoyance perception.
    Źródło:
    Archives of Acoustics; 2013, 38, 2; 253-258
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Importance of advanced planning of manufacturing for nuclear industry
    Autorzy:
    Shykinov, N.
    Rulko, R.
    Mroz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/407173.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    component
    construction
    licensing
    long-lead
    nuclear
    compliance
    safety
    regulation
    procurement
    design
    standards
    Opis:
    In the context of energy demands by growing economies, climate changes, fossil fuel pricing volatility, and improved safety and performance of nuclear power plants, many countries express interest in expanding or acquiring nuclear power capacity. In the light of the increased interest in expanding nuclear power the supply chain for nuclear power projects has received more attention in recent years. The importance of the advanced planning of procurement and manufacturing of components of nuclear facilities is critical for these projects. Many of these components are often referred to as long-lead items. They may be equipment, products and systems that are identified to have a delivery time long enough to affect directly the overall timing of a project. In order to avoid negatively affecting the project schedule, these items may need to be sourced out or manufactured years before the beginning of the project. For nuclear facilities, long-lead items include physical components such as large pressure vessels, instrumentation and controls. They may also mean programs and management systems important to the safety of the facility. Authorized nuclear operator training, site evaluation programs, and procurement are some of the examples. The nuclear power industry must often meet very demanding construction and commissioning timelines, and proper advanced planning of the long-lead items helps manage risks to project completion time. For nuclear components there are regulatory and licensing considerations that need to be considered. A national nuclear regulator must be involved early to ensure the components will meet the national legal regulatory requirements. This paper will discuss timing considerations to address the regulatory compliance of nuclear long-lead items.
    Źródło:
    Management and Production Engineering Review; 2016, 7, 2; 42-49
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on application of strip backfilling mining technology – a case study
    Autorzy:
    Xing, Wenbin
    Huang, Wanpeng
    Feng, Fan
    Powiązania:
    https://bibliotekanauki.pl/articles/2073880.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    technologia budowlana
    skała węglowa
    symulacja numeryczna
    coal gangue
    strip backfilling mining
    numerical simulation
    scheme design
    construction technology
    Opis:
    Strip backfilling mining technology is of great significance for eliminating coal gangue, improving coal recovery rate, harmonizing the development between resources and environment in diggings. This paper firstly analyzed the roof control mechanism, the deformation and failure mechanism and characteristics of the filling body through theoretical analysis. Then, through numerical simulation combined with the geological conditions on site, a gangue strip filling scheme was designed for the 61303 working face of the 13th layer of the rear group coal of the Wennan Coal Mine in Shandong Province, and the filling scheme of filling 50 m and leaving 25 m was determined. Finally, an on-site engineering test was carried out on the 61303 working face. Through the analysis of the measured data of “three quantities” after the filling test, it can be seen that the test has achieved a good engineering application effect and verified the rationality of the filling scheme design. It solves the coal gangue problem, improves the resource recovery rate, and provides a reference for other similar mines.
    Źródło:
    Archives of Mining Sciences; 2021, 66, 4; 595--609
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Architektura wspomagana mechatroniką. Robot Aided Design
    Architecture with Mechatronics. Robot Aided Design
    Autorzy:
    Wojtowicz, J.
    Wrona, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/145672.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    architektura
    mechatronika
    robotyka
    projektowanie
    fabrykacja
    montaż
    automatyzacja budownictwa
    architektura kinetyczna
    architecture
    mechatronics
    robotics
    design
    fabrication
    assembly
    automation of construction
    kinetic architecture
    Opis:
    Integrowanie projektowania i mechatroniki prowadzi ku nowej domenie architektury. Robotyka staje się obecna w twórczych procesach projektowania, modelowania i budowania architektury społeczeństwa wiedzy. Powstaje nowa architektura, która może reagować na zmienne warunki środowiska oraz zmienne wymagania funkcjonalne. Robotyka umożliwia współpracę projektanta i użytkownika w tych procesach. Wybrane przykłady świadczą, że fabrykacja i montaż elementów architektury z wykorzystaniem robotów jest zjawiskiem potencjalnie istotnym w przekształceniach miasta i jego architektury.
    The new phenomena resulting from the integration of architecture and mechatronics are discussed. In the society of knowledge, design, modeling, fabricating and assembling of architecture with robotics can be seen as part of creative design process. The use of robotics and automation affects the practice and world of architecture. Fabrication and assembly of structures and elements of building using robots is an important phenomenon, as illustrated by the cited examples. Kinetic architecture becomes a form of interface that responds to changing conditions context and to dynamic user requirements.
    Źródło:
    Kwartalnik Architektury i Urbanistyki; 2017, 62, 1; 5-23
    0023-5865
    Pojawia się w:
    Kwartalnik Architektury i Urbanistyki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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