Results 11 to 20 of about 74,493 (269)

The relation between the geometric parameters of grinding powders grains measured by laser diffraction and light-microscopical methods [PDF]

open access: yesMATEC Web of Conferences, 2018
The studies were conducted on grinding powders of black silicon carbide with F180-F60 grit produced by Volzhsky Abrasive Plant. The length, width, perimeter, area and reduced diameter of the grain area were determined by light-microscopical method, the ...
Nosenko Vladimir A.   +1 more
doaj   +2 more sources

Diameter versus girth: which variable provides the best estimate of the cross-sectional area? [PDF]

open access: yesForest Systems, 2015
Aim of study: Cross-sectional area is one of the most important forest inventory variable since it is highly correlated with growth and yield at both tree and stand levels.
Francisco Rodríguez   +2 more
doaj   +5 more sources

Effect of chick weight, geometric mean diameter and sodium level in prestarter diets (1 to 7 days) on broiler perfomance up to 21 days of age [PDF]

open access: yesRevista Brasileira de Ciência Avícola, 2004
Seven hundred and twenty Ross 308 chicks were raised in a controlled environment room, distributed in a factorial design with 3 hatching chick weights (37, 40 and 44 g), 3 geometric mean diameter (GMD) (0.561; 0.783 and 0.997 mm) and 4 total sodium levels (Na) (0.12; 0.24; 0.36 and 0.48%) in the pre-starter diet (1 to 7 days). From 8 to 21 days (d) one
Ribeiro, AML   +4 more
openaire   +7 more sources

Guiding Field Measurement of Pine Tree Crowns: A Geometric Shape Comparison Using Drone Imagery [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This paper examines various geometric shapes to determine the most suitable one for calculating tree crown area in field measurements. The study was conducted in an Eldarica pine plantation forest, which was digitally mapped using RGB images captured by ...
A. Hosingholizade   +5 more
doaj   +3 more sources

Effects of biological practices on soil stability in a desertified area of Iran [PDF]

open access: yesEnvironmental Resources Research, 2013
The rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality.
Hamid Asgari
doaj   +1 more source

Studies on the Moisture Dependent Physical Properties of Cowpea

open access: yesJournal of Engineering, 2023
Cowpea is a very important legume in Nigeria that is being utilized to Substitute high-cost animal protein for low-income people. The knowledge of some physical properties of various moisture contents is of utmost importance in the design of its ...
Abubakar A. J.   +3 more
doaj   +1 more source

Particles Size as Feed Quality Parameter in Ghana - A Case Study of Dormaa Municipality [PDF]

open access: yesPoultry Science Journal, 2018
There is a general agreement between researchers that particle size of poultry feed should be between the size ranges of 600-900 µm. This study investigated the particle size of poultry feed produced in the Dormaa Municipality of Ghana.
AGYEI TA, Addo A
doaj   +1 more source

The Effect of Zeolite on Aggregate Stability Indices

open access: yesمجله آب و خاک, 2016
Introduction: Soil structural stability affects the profitability and sustainability of agricultural systems. Particle size distribution (PSD) and aggregate stability are the important characteristics of soil. Aggregate stability has a significant impact
F. Sohrab, N. Abbasi, A. Mahdipour
doaj   +1 more source

Genesis of New Particle Formation Events in a Semi-Urban Location in Eastern Himalayan Foothills

open access: yesAtmosphere, 2023
New particle formation (NPF) events identified using scanning mobility particle sizer (SMPS) measurements, their subsequent growth and other characteristics over Dibrugarh, a semi-urban location in the eastern Himalayan foothills (EHF), during November ...
Barlin Das   +4 more
doaj   +1 more source

Effect of Soil Preparation and Layers on the Weighted Mean Diameter and Geometric Mean Diameter of a Red Distroferric Latosol

open access: yesJournal of Experimental Agriculture International, 2019
The objective of this work was to study the influence of three management systems on the physical attributes and productivity of irrigated wheat, cultivar BRS-254, in the city of Tangara da Serra, MT.  The soil physical attributes were: weighted mean diameter (DMP) and geometric mean diameter (DMG).
Patrícia Monique Crivelari da Costa   +9 more
openaire   +2 more sources

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