Results 21 to 30 of about 2,311,270 (302)

Vertical and Horizontal Transmission of Pospiviroids

open access: yesViruses, 2018
Viroids are highly structured, single-stranded, non-protein-coding circular RNA pathogens. Some viroids are vertically transmitted through both viroid-infected ovule and pollen.
Yosuke Matsushita   +2 more
doaj   +1 more source

Species turnover in ant assemblages is greater horizontally than vertically in the world's tallest tropical forest

open access: yesEcology and Evolution, 2022
Abiotic and biotic factors structure species assembly in ecosystems both horizontally and vertically. However, the way community composition changes along comparable horizontal and vertical distances in complex three‐dimensional habitats, and the factors
Shuang Xing   +3 more
doaj   +1 more source

Scaling of Vertical Component of Seismic Ground Motion

open access: yesAlexandria Engineering Journal, 2020
Three-dimensional time history analysis has become a demand for the majority of updated building codes. A vast literature has addressed the selecting and scaling of horizontal component of earthquake ground motion.
Fikrat ALMahdi   +2 more
doaj   +1 more source

Comparison of Development Effects for Two Different Combined Well Patterns with Horizontal Wells and Vertical Wells

open access: yesImproved Oil and Gas Recovery, 2019
In recent years, horizontal wells have been widely utilized in low permeability reservoirs of China. Normally horizontal wells are deployed combined with vertical wells, in which way effective injection-production well network system could be established.
Qingyan Xu, Rongliang Guan, Cong Wu
doaj   +1 more source

Comparison between Vertical-Horizontal and Horizontal-Vertical hybrid constructed wetlands.

open access: yesJournal of Zankoy Sulaimani - Part A, 2016
Water pollution cause serious health risk to public. Treating wastewater in allow cost efficient way is necessary for the region. This project was designated to describe the usefulness of macrophytes Typha angustifolia L and Phragmites australis, since this could be an index for its utility as a biological purifier for advanced treatment of ...
Khasraw Rashid, Qadri Salh
openaire   +1 more source

Fragility analysis of underground large-scale frame structures considering seismic effects of vertical earthquakes

open access: yesYantu gongcheng xuebao, 2023
The increase dynamic analysis (IDA) curves of seismic responses of the underground large-scale frame structure (ULSFS) are investigated during the single horizontal earthquakes and horizontal-vertical earthquakes, respectively. The influence mechanism of
QIU Dapeng 1, 2, CHEN Jianyun 3, WANG Wenming 1, 2, CAO Xiangyu 4
doaj   +1 more source

Relationship between vertical and horizontal magnetic fields in the quiet Sun

open access: yes, 2011
Vertical magnetic fields have been known to exist in the internetwork region for decades, while the properties of horizontal magnetic fields have recently been extensively investigated with \textit{Hinode}.
Asensio Ramos   +31 more
core   +1 more source

The new EU economic governance: vertical and horizontal power shifts [PDF]

open access: yes, 2013
The euro crisis made visible the omitted stage in the European integration process. The EU jumped from the common market straight to the monetary union, neglecting the formation of the economic union.
Naert, Frank
core   +3 more sources

Analysis of Fracture Design in a Vertical Well with a Horizontal Fracture

open access: yesImproved Oil and Gas Recovery, 2017
DOI: 10.14800/IOGR.422 Authors: Kai Dong, Xiao Jin, Jie He Issue: Vol 1 (2017) Section: Article Abstract The overwhelming majority of hydraulic fractures are vertical and methods for designing them in both vertical and horizontal wells are well ...
Kai Dong, Xiao Jin, Jie He
doaj   +1 more source

Horizontal-Vertical-Rocking Coupled Response Analysis of Vertical Seismic Isolated Structure under Near-Fault Earthquakes

open access: yesShock and Vibration, 2020
For vertical isolated structures with excessive vertical eccentricity for mass and vertical stiffness, horizontal-vertical-rocking response needs to be better understood for vertical isolated structures located in near-fault areas, where long-period ...
Dewen Liu   +3 more
doaj   +1 more source

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