Results 21 to 30 of about 159,636 (381)

Economic Topology Optimization of District Heating Networks using a Pipe Penalization Approach [PDF]

open access: yesEnergy, 2022, 126161, 2022
In the presented study, a pipe penalization approach for the economic topology optimization of District Heating Networks is proposed, drawing inspiration from density-based topology optimization. For District Heating Networks, the upfront investment is a crucial factor for the rollout of this technology.
arxiv   +1 more source

Sediment and particulate carbon removal by pipe erosion increase over time in blanket peatlands as a consequence of land drainage [PDF]

open access: yes, 2006
Land drainage is common in peatlands. Artificially drained blanket peat catchments have been shown to have a significantly greater soil pipe density than intact catchments.
Bol   +39 more
core   +1 more source

Pipe-to-pipe impact program [PDF]

open access: yes, 1984
This report documents the tests and analyses performed as part of the Pipe-to-Pipe Impact (PTPI) Program at the Pacific Northwest Laboratory. This work was performed to assist the NRC in making licensing decisions regarding pipe-to-pipe impact events following postulated breaks in high energy fluid system piping.
Alzheimer, J.M.   +3 more
openaire   +3 more sources

Some Comments on the Entropy-Based Criteria for Piping

open access: yesEntropy, 2015
This paper is an extension of previous work which characterises soil behaviours using the grading entropy diagram. The present work looks at the piping process in granular soils, by considering some new data from flood-protection dikes.
Emöke Imre   +6 more
doaj   +1 more source

IDENTIFIKASI PENYUMBATAN ALIRAN AIR PADA PIPA DENGAN METODA GETARAN

open access: yesRekayasa Mesin, 2022
The piping system design due to pressure will experience vibrations due to the excitation force that comes from the pump. Excitation force occurs due to changes in fluid flow velocity.
Subekti   +4 more
doaj   +1 more source

3D character of backward erosion piping [PDF]

open access: yes, 2018
Backward erosion piping is an important failure mechanism for cohesive water-retaining structures which are founded on a sandy aquifer. Nowadays, piping research and safety assessments are often based on experimental or numerical modelling using ...
Bezuijen, Adam   +2 more
core   +2 more sources

Influencia de los factores topográficos en los procesos de piping, Murcia (España)

open access: yesCuadernos de Investigación Geográfica, 2013
Las causas de formación de los procesos de piping, que se han descrito habitualmente, son diversas: mecánicas, químicas o biológicas, y en particular destacan las relacionadas con la presencia de sodio en el suelo y la existencia de gradientes ...
A. Romero Díaz   +2 more
doaj   +1 more source

PELATIHAN BAHASA INGGRIS SEBAGAI SARANA MENINGKATKAN KUALITAS KINERJA DAN PROFESIONALISME CALON TKI MELALUI TEKNIK EVERYDAY.EVERYDAY RICH [PDF]

open access: yes, 2018
Kegiatan pengabdian ini bertujuan meningkatkan pemahaman dan kemampuan para Tenaga Kerja Indonesia (TKI) di area Gunung Budeg di Tulungagung khususnya pada bahasa Inggris melalui bentuk.
Rahadianto, Piping
core   +2 more sources

Towards Automatic Digital Documentation and Progress Reporting of Mechanical Construction Pipes using Smartphones [PDF]

open access: yes, 2020
This manuscript presents a new framework towards automated digital documentation and progress reporting of mechanical pipes in building construction projects, using smartphones. New methods were proposed to optimize video frame rate to achieve a desired image overlap; define metric scale for 3D reconstruction; extract pipes from point clouds; and ...
arxiv   +1 more source

Open Pipes, Stopped Pipes and Double Stopped Pipes [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1931
Air columns in rigid tubes reflect pulses (sound waves) at the ends. The classical sounding or vibrating air column is the organ pipe, broadly classed as either “open” or “stopped” and giving tones of different quality because lack of symmetry in stopped organ pipes suppresses the evenly numbered harmonic overtones.
openaire   +2 more sources

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