Results 131 to 140 of about 6,571,291 (289)

Model of limestone weathering and damage in masonry : sedimentological and geotechnical controls in the Globigerina limestone formation (Miocene) of Malta [PDF]

open access: yes, 2006
Five types and subtypes of stone used in construction in the Maltese Islands and three problematic stone types, mostly extracted from facies within the Oligo-Miocene Valletta Basin, are identified.
Gatt, Peter A.
core  

Sedimentary evolution and paleoclimate conditions in the Yangtze river estuary across the late Pleistocene to early Holocene

open access: yesFrontiers in Marine Science
Due to the complexity of sedimentary evolution since the Last Glacial Maximum (LGM) in the Yangtze River Estuary (YRE), sedimentary responses across different regions have varied significantly, but the sedimentary record on the northern flank of the ...
Siqi Li   +6 more
doaj   +1 more source

The role of venture‐financed startups in innovation for US agriculture

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff   +2 more
wiley   +1 more source

Ge-Si RATIO FOR ASSESSING THE CHEMICAL WEATHERING INTENSITY AT THE PALEOCENE-EOCENE BOUNDARY IN ANCIENT TRANSURALIAN BASIN

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
Relevance. Diatomites and their transitional differences formed in the Paleocene–Eocene marine basin are one of the most widespread in the near-surface occurrence of sedimentary rocks in the vast territory of the Trans-Urals. At the same time, with regard to the genetic aspects of such rocks, the discussion on the fundamental sources of silica for ...
Smirnov P.V.   +3 more
openaire   +1 more source

Risk management externalities in agrifood supply chains

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

Modification of mercerized jute fabric through benzoyl peroxide treatment, polymer coating, and gamma irradiation for geotechnical applications

open access: yesMaterials Research Express
Natural jute fibers show promises as biodegradable substitutes for geotechnical applications, but their high-water absorption and short lifespan limit their long-term viability.
Nasrin Akter   +4 more
doaj   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee   +3 more
wiley   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke   +9 more
wiley   +1 more source

Chemical Weathering

open access: yes, 2017
Living reference work entry First Online: 22 July 2017 Definition: Weathering of rocks caused by the chemical action of water containing atmospheric oxygen, carbon dioxide, and some organic acids in solution on the rock-forming minerals leading to an ...
Duarte, Isabel M.R.   +5 more
core   +1 more source

Characteristics and paleoclimate significance of authigenic ferrimagnetic minerals in the Xuancheng red earth, southern China

open access: yesScientific Reports
Soil magnetic records in Quaternary red earth (QRE) deposits contain a valuable record of paleoclimate information, providing insights into controls on Earth’s climate system in the past and potentially helping to predict its response to perturbations in
Daqian Zhang   +11 more
doaj   +1 more source

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