Results 61 to 70 of about 325,651 (334)
Greenhouse Gas Emissions from Excavation on Residential Construction Sites
Construction Economics and Building, 2014 Despite considerable research concerning the manifestation of greenhouse gases in the usage of buildings, little has been done concerning emissions arising from the construction process itself.
Perry Forsythe, Grace Ding
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USING NON-BLASTING TECHNOLOGIES FOR DESTRUCTION OF HARD ROCK IN SURFACE MINING [PDF]
, 2018 Determination the effective application field of non-blasting technology and technologies for the hard rock preparation for excavation during surface ...
DREBENSTEDT, Carsten +2 more
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Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.Abstract Additive carbonylations typically necessitate strong nucleophiles, such as alcohols or amines. In this study, we carbonylated a poorly nucleophilic urea, under oxidant‐free conditions. Our straightforward carbonylative strategy enables access to versatile α,β‐unsaturated γ‐lactams featuring an aminocarbonyl fragment, utilizing readily ...
Debora Schiroli +11 more
wiley +1 more source
Unexpected Emission of H2S in an Excavation
Eng, 2023 This article reports on the emission of H2S (hydrogen sulfide) during the excavation of disturbed material covering a former ocean shoreline. Operators of the excavators expressed concerns about the strong odors of H2S, the insensitivity of workplace ...
Thomas Neil McManus, Sean Henderson
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DEM simulation of soil-tool interaction under extraterrestrial environmental effects [PDF]
, 2017 In contrast to terrestrial environment, the harsh lunar environment conditions include lower gravity acceleration, ultra-high vacuum and high (low) temperature in the daytime (night-time).
Arroyo Alvarez de Toledo, Marcos +3 more
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Advanced Science, EarlyView.D‐galactose (D‐gal) induced inner ear hair cell senescence by inhibiting TFEB transcription. RONIN/HCF1 promotes TFEB transcription to prevent cochlear HCs from D‐gal‐induced senescence through autophagy activation. Abstract Age‐related hearing loss is characterized by senescent inner ear hair cells (HCs) and reduced autophagy.
Yongjie Wei +18 more
wiley +1 more source
(Pre) Iron Age Burials of Thandikudi, Tamil Nadu
Ancient Asia, 2015 Thandikudi, one of the major villages in the Lower Palani Hills occupies a unique position as this village was well connected by major trade routes. The archaeological vestiges unearthed here have clearly attested that it was
RaNa Kumaran, M Saranya
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Justification of efficient options of fully-mechanized extraction of pitch coal at Kuang Khan Mine
Горные науки и технологии, 2016 Currently, the Vinacomin company actively mechanizes coal mining processes, developing process solutions for coal mining in complicated geological conditions.
N. I. Abramkin, Duc Thang Pham
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Theoretical Analysis of the Active Earth Pressure on Inclined Retaining Walls
Buildings, 2023 The estimation of earth pressure is crucial in the design of retaining structures. The evaluation of vertical retaining walls has been well studied within the framework of the differential flat element method in prior investigations, in which the ...
Gang Zheng +4 more
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Numerical investigation into the failure of a micropile retaining wall [PDF]
, 2017 The paper presents a numerical investigation on the failure of a micropile wall that collapsed while excavating the adjacent ground. The main objectives are: to estimate the strength parameters of the ground; to perform a sensitivity analysis on the back
Prat Catalán, Pere
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