Results 51 to 60 of about 1,016,619 (289)

Success of coastal sage scrub restoration is influenced by local adaptations of shrub species

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Restoring plant communities is increasingly challenging with climate change. While practitioners have traditionally used local seed sources, many are recommending assisted migration, possibly from more extreme environments such as inland rather than coastal environments, for restoration.
Moises R. Perea‐Vega   +7 more
wiley   +1 more source

Disaster mechanism of thick-hard roof and control technology by hydraulic fracture with directional long borehole

open access: yesMeitan kexue jishu
In response to the main technical challenges faced by coal production enterprises in the long-term prevention and control of disasters caused by the thick-hard hanging roof fracturing in longwall mining faces, taking the 8238 fully-mechanized top-caving ...
Zhaozhong LI, Rui WANG
doaj   +1 more source

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

Mechanism of strong mine pressure in composite hard roofs and identification of the primary control layer

open access: yesGeomatics, Natural Hazards & Risk
Multilayered hard roofs overlie coal seams, and the instability mechanism of roof structures under combined stress conditions is highly complex. Through integrated approaches including physical similarity simulation, theoretical analysis, and engineering
Hongwei Wang   +3 more
doaj   +1 more source

Water quality monitoring and hydraulic evaluation of a household roof runoff harvesting system in France [PDF]

open access: yes, 2012
The quality of harvested rainwater used for toilet flushing in a private house in the south-west of France was assessed over a one-year period. Twenty-one physicochemical parameters were screened using standard analytical techniques.
Huau, Marie-Christine   +6 more
core   +1 more source

‘Hurry Up and Get Me out of Here’: The Experience of People Under 65 Years (Still) Stuck in Aged Care

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Following the Royal Commission into Aged Care Quality and Safety, the Australian Government set a target for no‐one under 65 years of age to be living in residential aged care (RAC) by 2025. The numbers of young people in residential aged care (YPIRAC) have significantly declined since the start of the targets.
Elroy Dearn   +4 more
wiley   +1 more source

Solar Roof Cooling by Evaporation

open access: yes, 1980
Evaporation is nature's way of cooling. By spraying a light film of water in the form of a mist for thirty seconds, then turning the sprays off for five minutes while evaporation takes place, the roof temperature can be reduced from 1650o to 880o.
Patterson, G. V.
core   +1 more source

Complications and Clinical Outcomes Following Modified Endoscopic Denker's With Pyriform Aperture Preservation: A Prospective Analysis

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background The modified endoscopic Denker's (MED) approach provides access to all maxillary sinus (MS) walls for resection of various MS and retromaxillary pathologies, but the anteromedial maxilla has historically been resected. This study determined complication rates and outcomes following MED with pyriform aperture (PA) preservation ...
Yasser Almansour   +5 more
wiley   +1 more source

Structural quantification of multi-thick hard roof and strong ground pressure control in large mining height stope: a case study

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
The mining of deep large-height longwall faces leads to frequent occurrences of strong ground pressure, at the same time, there are multi-thick hard rock strata in the roof of the longwall face, therefore, it is important to master the fracture ...
Yangbo Lu   +4 more
doaj   +1 more source

Study on Rock Burst Event Disaster and Prevention Mechanisms of Hard Roof

open access: yesAdvances in Civil Engineering, 2019
Coal mining under hard roofs is jeopardized by rock burst-induced hazards. In this paper, mechanisms of hard roof rock burst events and key techniques for their prevention are analyzed from the standpoint of energy evolution within geological conditions ...
Nan Zhou   +3 more
doaj   +1 more source

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