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Axial variation in conduit dimensions in angiosperm leaves and conifer needles — a review [PDF]

open access: yesFrontiers in Plant Science
The tip-to-base widening of xylem conduits is a well-documented feature of plant hydraulic architecture at the level of stems and branches. This anatomical pattern, predicted by hydraulic optimization theory (WBE model) minimizes the increase in ...
Roman Gebauer
doaj   +2 more sources

The variation characteristics of axial force of bolts under alternating temperature

open access: yesResults in Engineering
This paper focus on the variation characteristics of axial force of bolts under alternating temperature. The temperature distribution characteristics of various regions in China were considered, and a typical alternating temperature load (0∼25 °C) was ...
Chongkai Fan
exaly   +3 more sources

Vertical Variation of Wood Chemical Constituents in (Albizia lebbeck L. Benth.) Trees Grown in Egypt [PDF]

open access: yesJournal of Plant Production, 2020
Basic knowledge of the within tree chemical components variation is essential which affects the wood end-use. Therefore, this study aimed to determine the chemical constituents (cellulose, hemicellulose, lignin, total extractive, ash contents, pH, and ...
K. Hassan
doaj   +1 more source

Wood Properties of 38-year-old Cariniana legalis (Mart.) Kuntze Based on Planting Spacing

open access: yesColombia Forestal, 2022
This study aimed to analyze the properties of 38-year-old Cariniana legalis wood from trees planted with three spacings between trees: 3 × 2.5, 3 × 2, and 3 × 1.5 m. Five trees were collected from each tree spacing.
Israel Luiz De Lima   +5 more
doaj   +1 more source

IMPLEMENTATION OF QUADRATIC AXIAL TRIAL FUNCTIONS IN THE HIGH-FIDELITY TRANSPORT CODE PROTEUS-MOC [PDF]

open access: yesEPJ Web of Conferences, 2021
PROTEUS-MOC is a pin-resolved high-fidelity transport code, in which the axial variation of angular flux is represented in terms of orthogonal polynomials.
Zhang Guangchun, Yang Won Sik
doaj   +1 more source

Mechanism analysis of rock damage and failure based on the relation between deep chamber axial variation and in situ stress fields

open access: yes工程科学学报, 2022
The demands for deep underground mining and construction are increasing with the continuing development of society and the economy. Deep underground chambers function as primary elements in deep underground mining and other subsurface facilities ...
Li-yuan LIU, Le ZHANG, Hong-guang JI
doaj   +1 more source

Study on deformation and permeability properties of raw coal during alternate loading and unloading

open access: yesMeikuang Anquan, 2022
The deformation and permeability experiments of raw coal in the process of alternating loading and unloading under variable axial pressure loading rate are carried out by using the thermal fluid structure coupling servo experimental system, and the ...
YANG Yushun   +3 more
doaj   +1 more source

Variation of axial force of steel struts in deep excavations

open access: yesYantu gongcheng xuebao, 2022
The discrete data and unclear variation trend of axial force of steel structs are the important design problems, which seriously affect the safety and economic rationality of deep excavations.
CAO Xue-shan 1, LU Xin-yu 2, GU Yi-ming 3
doaj   +1 more source

Novel Characteristics of Subsonic Coflowing Jets With Varying Lip Thickness [PDF]

open access: yesJournal of Aerospace Technology and Management, 2020
Effect of Mach number on coflowing jet at lip thickness of 0.2 Dp, 1.0 Dp and 1.5 Dp (where Dp is primary nozzle exit diameter, 10 mm) at Mach numbers 1.0, 0.8 and 0.6 were studied experimentally.
Naren Shankar Radha Krishnan   +1 more
doaj   +3 more sources

Influence of seismic loading on axial load variation in reinforced concrete columns [PDF]

open access: yese-GFOS, 2018
Experimental tests demonstrated the importance of the axial load variation in the seismic response of RC columns, namely, through the reduction in the strength capacity, reduced deformation capacity, and reduced energy dissipation capacity.
Hugo Rodrigues   +3 more
doaj   +1 more source

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