Results 31 to 40 of about 3,585,068 (378)

Prediction of the productivity of floodplain soils in Taraba state using productivity models

open access: yesEQA, 2021
A study was carried out to quantify the productivity level of floodplain soils in Taraba state using Neill’s Productivity Index (PI) and Modified Neill’s Productivity Index (PIM).
Tanko Bako   +2 more
doaj   +1 more source

The Ability of Conservation Agriculture to Conserve Soil Organic Carbon and the Subsequent Impact on Soil Physical, Chemical, and Biological Properties and Yield

open access: yesFrontiers in Sustainable Food Systems, 2020
Increases in human populations and the emerging challenges of climate change mean that the world's agricultural systems will need to produce more food in an environment that is increasingly variable and where the quality of our natural resource base is ...
K. Page, Y. Dang, R. Dalal
semanticscholar   +1 more source

Desertomycin: Purification and physical-chemical properties.

open access: yesThe Journal of Antibiotics, 1983
Desertomycin was isolated from Streptomyces macronensis Dietz sp. nov. UC 8271. Extensive spectroscopic work led us to place desertomycin in the macrocyclic lactone family which contains monazomycin, scopafungin, primycin, azalomycin F4a and niphithricins A and B.
Fritz Reusser   +5 more
openaire   +4 more sources

The physical and chemical properties of planet forming disks [PDF]

open access: yes, 2019
VLT instruments and ALMA have revolutionized in the past five years our view and understanding of how disks turn into planetary systems. They provide exquisite insights into non-axisymmetric structures likely closely related to ongoing planet formation ...
Kamp, I.
core   +3 more sources

Research on the physical and chemical properties of sewage treatment sludge biochar and its preparation for wastewater

open access: yesMokslas: Lietuvos Ateitis, 2023
Treatment and recycling of sludge waste have developed into a research focus in recent years. Today, nutrient recovery from wastewater and sludge has received much attention from regulators, academia, industry, and the general public.
Judita Paulionytė, Rasa Vaiškūnaitė
doaj   +1 more source

Anatomical, physical and chemical properties of Sepestan wood (Cordia myxa L.) in Iranshahr region [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2015
Cordia (Sepestan in Persian) species (Cordia myxa L.) is in the borage family (Boraginaceae) and it is growing with geographical distribution in the moderate and tropical regions of Iran such as near the Persian Gulf, especiallyin Bandar Abbas and some ...
babak Nosrati   +2 more
doaj   +1 more source

Fractionation of Buckwheat Seed Phenolics and Analysis of Their Antioxidant Activity

open access: yesPolish Journal of Food and Nutrition Sciences, 2015
Five fractions of phenolic compounds were obtained from the extract of common buckwheat seed (Fagopyrum esculentum Moench) using Sephadex LH-20 column chromatography with methanol as a mobile phase.
Karamać Magdalena   +2 more
doaj   +1 more source

Research of Physical-Chemical and Operational Properties of Insecticide Polymer Films

open access: yesVestnik of Vitebsk State Technological University, 2020
Multifunctional film materials based on highpressure polyethylene have been developed and manufactured by modifying the polymer matrix with chemically active reagents (insecticides from the classes of synthetic pyrethroids, organophosphorus compounds ...
Elena Lashkina
doaj   +1 more source

PHYSICAL, CHEMICAL AND MINERAL PROPERTIES OF THE POLONNARUWA STONES [PDF]

open access: yesSPIE Proceedings, 2013
We report on the physical, chemical and mineral properties of a series of stone fragments recovered from the North Central Province of Sri Lanka following a witnessed fireball event on 29 December 2012. The stones exhibit highly porous poikilitic textures comprising of isotropic silica-rich/plagioclase-like hosts.
Nori Miyake   +9 more
openaire   +2 more sources

Characterisation of the physical, chemical and mechanical properties of a radiopaque polyethylene [PDF]

open access: yesJournal of Biomaterials Applications, 2020
Ultra-high molecular weight polyethylene has a low X-ray attenuation, hence, the performance of the polyethylene implants used for joint replacements cannot be directly investigated using X-ray-based imaging techniques. In this study, the X-ray attenuation of polyethylene was increased by diffusing an FDA-approved oil-based contrast agent (Lipiodol ...
Fedra P Zaribaf   +2 more
openaire   +2 more sources

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