نتایج جستجو برای: brown sand stone

تعداد نتایج: 102306  

Journal: :Journal of Sea Research 2021

Brown shrimp, Crangon crangon, inhabit highly productive sandy and muddy grounds of the southern North Sea. The stomachs shrimp contain variable often high numbers sediment grains. function grains inside stomach purpose their ingestion are only poorly understood. We tested in laboratory experiments whether associated organic material complement natural food C. crangon or if sand may be used by ...

Journal: :International Development Planning Review 2022

This paper questions strategies of economic formalisation which prioritise the extension state regulation as a means extending access to labour protection and social protection. It draws on research project key livelihood systems their associated governance arrangements in three unplanned urban settlements Freetown, Sierra Leone. Our analysis these fishing, sand stone-quarrying highlights colle...

Journal: :Agriculture 2022

Brown rot caused by Monilinia spp. is the main disease of stone fruits. Our research aimed to identify an appropriate strategy control plum brown and reduce fungicides residues in fruit through targeted application biocontrol agents (BCAs) Papiliotrema terrestris Bacillus subtilis, alone or combination with synthetic fungicides. The following treatments were evaluated: Biological (BIO1, BIO2), ...

Journal: :Quaternary Science Reviews 2022

Border Cave (BC) has accumulated over 200,000 years of archaeological deposits that document remarkable evidence human behaviour during the Middle and Later Stone Age. For nearly fifty years, researchers have relied on stratigraphic framework established by Peter Beaumont in 1973, which are lithostratigraphically categorized into a sequence alternating ‘Brown Sand’ (BS) ‘White Ash’ (WA) members...

Journal: :Journal of Advanced Concrete Technology 2023

Stone powder and others waste causes serious harm to the environment, society, ecosystem human well-being, applying it concrete is a path of green effective. In this study, series tests was carried out on manufactured sand with different granite porphyry contents. The results showed that when stone content lower than 8%, cracking resistance, compressive strength, chloride ion permeability sulfa...

2005
James E. Adaskaveg Helga Förster W. Doug Gubler Beth L. Teviotdale David F. Thompson

IN 1996, the U.S. Congress unanimously passed the Food Quality Protection Act (FQPA). Among other things, the law formalized the U.S. Environmental Protection Agency’s (EPA) Reduced-Risk Pesticide Program (initiated in 1993) and mandated that EPA continue to enhance it (EPA 2003, 2004). The FQPA expedited EPA’s review and registration decision-making process for pesticides that are classified a...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2020

Journal: :Buildings 2023

The market demand for manufactured sand has grown rapidly, and the solution to problem of optimum stone powder content from concrete is imminent. workability, early age shrinkage strain cracking, strength, chloride ion penetration, pore structures with different contents were tested study influence concrete. test results show that addition beneficial in improving working performance But at same...

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