Results 1 to 10 of about 2,443,466 (313)

Numerical investigation of gravity-grouted soil-nail pullout capacity in sand

open access: yesOpen Geosciences, 2023
Soil nailing reinforces soil slopes and retaining walls by installing reinforcing elements into the soil, which rely on bonding strength with surrounding soil to transfer axial forces. This study focuses on the pullout capacity evaluation of grouted soil-
Won Myoung-Soo   +3 more
doaj   +1 more source

The effect of tube diameter on vertical two-phase flow regimes in small tubes

open access: yes, 2006
Flow boiling flow patterns in four circular tubes with internal diameters of 1.10, 2.01, 2.88 and 4.26 mm were investigated in the present project. The experiments were conducted in vertical upward two-phase flow using R134a as the working fluid.
Chen, L, Tian, YS, Karayiannis, TG
core   +1 more source

Diameter-driven allometric relationships of species and functional types (Nitrogen-fixing vs. non-fixing tree species).

open access: yes, 2023
(a) Aboveground biomass is plotted as a function of diameter (D, in cm) (b) Foliar biomass is plotted as a function of diameter.
K. A. Carreras Pereira (16859253)   +5 more
core   +1 more source

Growth reaction of young wild cherry (Prunus aviumL.) trees to pruning

open access: yesJournal of Forest Science, 2007
A large crown is one of the most important prerequisites for the good growth of a tree and therefore the crown could be called an engine of increment.
I. Kupka
doaj   +1 more source

GROSS MORPHOMETRICAL STUDY ON BURSA OF FABRICIUS IN DEVELOPING BRONZE TURKEY (MELEAGRIS GALOPAVO) [PDF]

open access: yesTrakia Journal of Sciences, 2020
The aim of the study was an evaluation of the age related development of bronze turkey's bursa of Fabricius. The obtained data gave information about the standard actual values of the metric parameters in the investigated organ.
G. Penchev
doaj   +1 more source

Foetal Transcerebellar Diameter (TCD) measurement between 18 and 23 weeks of pregnancy

open access: yesAnnals of Health Research, 2017
Background: The measurement of the Transcerebellar Diameter (TCD) is an emerging ultrasound parameter useful for the estimation of gestational age (GA). Objectives: The objectives of the present study included the establishment of baseline TCD values ...
Oloyede Olufemi A   +3 more
doaj  

Diameter-Dependent Competitive Adsorption of Sodium Dodecyl Sulfate and Single-Stranded DNA on Carbon Nanotubes

open access: yes, 2023
The equilibrium compositions of coatings on single-wall carbon nanotubes were spectroscopically deduced for samples dispersed in dilute sodium dodecyl sulfate (SDS) and then exposed to low concentrations of ssDNA oligomers.
Sergei M. Bachilo (1366209)   +2 more
core   +1 more source

Effect of polar additives on melt electrospinning of nonpolar polypropylene [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
Melt or solution electrospinning is an effective and direct technique for producing nanoscale fibers. Polypropylene (PP) cannot be easily dissolved at ambient temperature. Thus, it was commonly electrospun in melt state.
Zhiyuan Chen   +5 more
doaj   +1 more source

Minimizing the oriented diameter of a planar graph

open access: yes, 2009
We consider the problem of minimizing the diameter of an orientation of a planar graph. A result of Chvátal and Thomassen shows that for general graphs, it is NP-complete to decide whether a graph can be oriented so that its diameter is at most two.
Noble, SD   +3 more
core   +1 more source

Determination of the absolute harvesting age of Paulownia even-aged stands in Dr. Bahramnia's Forest Management Project [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2012
To determine the best absolute harvesting age (quantitative purpose) and maximum production per area of a 18- year-old stands of Paulownia fortunei plantation at Dr.
A'tefeh Mohammadi   +2 more
doaj   +1 more source

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