نتایج جستجو برای: 85 topsoil samples 0

تعداد نتایج: 1035557  

Journal: :Minerals 2023

With the rapid development of economy, heavy metal soil pollution causes ecosystem deterioration and raises serious concerns. Topsoil samples (n = 205) were collected to investigate characteristics, risk levels, sources metals in topsoil eastern Tibet. Heavy contents, such as As, Hg, Pb, Cr, Mn, Mo, Ni, Cu, Zn, Cd, tested, potential analyzed using correlational principal component analysis. The...

Journal: :Clinical chemistry 1994
G L Hortin A L Summerfield T R Wilhite C H Smith E L Branum J F O'Brien M Landt

New ELISAs for detecting macroamylase or free autoantibodies to amylase were tested with 48 samples that had been characterized by gel chromatography and electrophoresis. The macroamylase ELISA, with anti-IgG or anti-IgA for detection, detected macroamylase in 28 of 33 samples known to contain macroamylase (85% sensitivity), whereas the ELISA for free autoantibody to amylase was positive for on...

Journal: :Poultry science 2002
B G Lyon C E Lyon

Discoloration of raw or cooked tissue can occur from cell disruptions and blood migration caused by slow or variable chilling rates. Color parameters established by the Commission International D'Eclairage for measuring lightness, redness, and yellowness (L*, a*, and b* respectively) were determined on two groups (A and B) of uncooked and cooked leg quarters chilled at +4, 0, -3, -12, or -18 C....

Journal: :Metals 2021

This study combined finite element method (FEM) simulations and physical experiments to develop a novel cold bulging process, with the aim of studying mitigating quenching residual stresses in 2A14 tapered cylinder forgings. The samples underwent at different ratios (0–4.0%) evaluate stress reduction performance (via hole-drilling strain-gauge method) improvements their mechanical properties. F...

2013
SABAHAT AHSAN ZAIB HUSSAIN SYED ALI RAZA NAQVI

Crops which are stored for more than a few days become a potential target for mould growth and mycotoxin formation by the species Aspergillus. The present study investigated an effective extraction, clean up and analysis methodology for aflatoxins, amino acids and fatty acid methyl esters (FAME) in rice (Oryza sativa L) samples collected from Faisalabad Division, Pakistan The extraction solvent...

Journal: :Horttechnology 2022

Soil degradation during construction often results in soil loss through erosion and reduced vegetation establishment. Composted organic materials are used to restore health of compromised urban soils when planting trees shrubs; however, less is known about compost amendments for turfgrass The objective this trial was determine the effects differing incorporation rates two types on perennial rye...

Journal: :Science of The Total Environment 2021

Estimation and monitoring of soil organic carbon (SOC) stocks is important for maintaining productivity meeting climate change mitigation targets. Current global SOC maps do not provide enough detail landscape-scale decision making, allow tracking sequestration or loss over time. Using an optical satellite-driven machine learning workflow, we mapped (topsoil; 0 to 30 cm) under natural vegetatio...

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