Results 71 to 80 of about 43,692 (253)

Regulatory Framework and Public Policies for Sustainability in the Construction Sector

open access: yesSustainable Development, EarlyView.
ABSTRACT This study analyzes the role of public policies in promoting socially responsible practices in the construction sector, with a particular focus on their contribution to climate neutrality and the decarbonization of the building stock. European agreements exert increasing pressure to transform the construction sector, reinforcing the transition
Olga González‐Morales   +3 more
wiley   +1 more source

Formation and evolution of shale overpressure in deep Wufeng-Longmaxi Formation in southern Sichuan basin and its influence on reservoir pore characteristics

open access: yesFrontiers in Earth Science
In the deep Longmaxi Formation shale gas reservoirs of the southern Sichuan Basin, strong overpressure is universally developed to varying degrees. However, there is currently a lack of in-depth research on the formation mechanisms, evolutionary patterns,
Shasha Sun   +9 more
doaj   +1 more source

Cryo‐FIB Lift‐Out and Electron Tomography Workflow for Bacteria–Nanopillar Interface Imaging Under Native Conditions: Investigating Dragonfly Inspired Bactericidal Titanium Surfaces

open access: yesSmall Methods, EarlyView.
A correlative cryo‐microscopy workflow enables targeted extraction and cryo‐electron tomography of bacteria–nanopillar interfaces under fully hydrated, near‐native conditions. By overcoming limitations of conventional imaging, this approach allows direct structural interrogation of bacteria–nanostructure interactions in situ, providing a methodological
Chaturanga D. Bandara   +7 more
wiley   +1 more source

Ignition overpressure study from solid rocket motor firings [PDF]

open access: yes
The objective was to investigate, through experimental means, the basic mechanisms influencing ignition overpressure and to determine ways to suppress ignition overpressure. Ignition overpressure was studied using solid rocket motors with geometry scaled
Counter, Douglas D.
core   +1 more source

Parametric numerical analysis of fire-induced pressure variations in a well-confined and mechanically ventilated compartment [PDF]

open access: yes, 2013
The investigation of a fire in a well-confined and mechanically ventilated compartment is of primary importance for the nuclear industry. In normal operating conditions, a ventilation network system is set-up to ensure confinement via an appropriate ...
Beji, Tarek   +2 more
core   +1 more source

Propagation Characteristics of Aluminum/Propylene Oxide Multiphase Cloud Explosion With Different AlH3 Ratios and Initiation Energies

open access: yesSafety Science and Technology, EarlyView.
Explosion process of propylene oxide (PO)/Al/AlH3/air was investigated. The PO/Al/AlH3/air multiphase clouds under strong ignition detonation have reached a quasi‐detonation state. ABSTRACT Fuel‐air explosives (FAE) are an important source of explosion energy. The density advantage of aluminum hydride (AlH3) dust is obvious compared with that of liquid
Hangwei Wan   +3 more
wiley   +1 more source

Propulsion system ignition overpressure for the Space Shuttle [PDF]

open access: yes
Liquid and solid rocket motor propulsion systems create an overpressure wave during ignition, caused by the accelerating gas particles pushing against or displacing the air contained in the launch pad or launch facility and by the afterburning of the ...
Guest, S. H.   +5 more
core   +1 more source

Post‐earthquake field assessment and damage correlation of elevated reinforced concrete water tanks in Kahramanmaras/Elbistan, Türkiye

open access: yesStructural Concrete, EarlyView.
Abstract This study evaluates the seismic performance of elevated reinforced concrete (RC) water tanks in the Elbistan region following the February 6, 2023 Kahramanmaras–Elbistan earthquakes. Field investigations, visual damage surveys, non‐destructive testing (ultrasonic pulse velocity—UPV), concrete compressive strength measurements, peak ground ...
Mustafa Eken
wiley   +1 more source

Formation mechanism and evolution characteristics of deep Permian overpressure in western Well Pen-1 Sag and its periphery, Junggar Basin

open access: yesYouqi dizhi yu caishoulu
To clarify the formation mechanism and evolution characteristics of the deep Permian overpressure in western Well Pen-1 Sag and its periphery in Junggar Basin, based on the data of drilling, logging, and measured formation pressure, the formation ...
GOU Yujie   +7 more
doaj   +1 more source

Was the Cosmic Web of Protogalactic Material Permeated by Lobes of Radio Galaxies During the Quasar Era? [PDF]

open access: yes, 2001
Evidence for extended active lifetimes (> 10^8 yr) for radio galaxies implies that many large radio lobes were produced during the `quasar era', 1.5 < z < 3, when the comoving density of radio sources was 2 -- 3 dex higher than the present level. However,
Best P. N.   +10 more
core   +2 more sources

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