Results 21 to 30 of about 244,114 (309)

Study on mechanical properties and damage characteristics of granite under thermal shock based on CT scanning

open access: yesMeitan kexue jishu, 2023
During the exploitation of deep geothermal resources, the thermal fractures of high-temperature rocks are usually induced by the impact of low-temperature fluids to improve the permeability of reservoir rocks.
Jiamin WANG   +5 more
doaj   +1 more source

Experimental study on the effect of fillers on fracture closure in fault-karst reservoir

open access: yes地质科技通报, 2021
Fracture is an important percolation channel in fault solution reservoir, and its closure law under geostress has an important influence on reservoir permeability.The physical simulation experiments of carbonate rock samples were carried out to study the
Qiangfu Kong   +3 more
doaj   +1 more source

CT SCAN OF THE LIVER

open access: yesRadiologic Clinics of North America, 1998
Since its inception, CT scan has had a dominant role in hepatic imaging. Recent advances including helical CT scan and bolus-triggered scan initiation software packages have had a significant impact. Issues regarding volume, rate of administration, and type of intravenous contrast are being distilled.
Division of Body Imaging and MRI (PRR) ( host institution )   +3 more
openaire   +3 more sources

Differential heat transfer characteristics and mechanism of different coal composition and distribution

open access: yesMeitan xuebao, 2023
The reservoir stimulation method of thermal induction is effective for improving the production of coalbed methane well, in which the heat transfer difference of coal composition and distribution is the key and fundamental problem to be solved urgently ...
Hewei ZHANG   +4 more
doaj   +1 more source

Quantitative study on grouting plugging effect of loaded fractured coal sample based on CT scanning

open access: yesGong-kuang zidonghua, 2022
The existing research on the fracture structure and grouting effect of grouting coal and rock mass cannot be quantitatively characterized. In order to solve the problem, the self-built grouting test system for loaded coal and rock mass is used to carry ...
LI Yan, LI Bing, YAO Shuai, YAO Banghua
doaj   +1 more source

Preoperative tumour size as a predictor of the presence of lymphovascular invasion in lung adenocarcinoma [PDF]

open access: yesMedicinski Glasnik, 2020
Aim To examine whether preoperative tumour size may serve as a biomarker for the occurrence of lymphovascular invasion (LVI) in centrally and peripherally located lung adenocarcinoma.
Kemal Grbić   +5 more
doaj   +1 more source

Integrating phylogeography and high-resolution X-ray CT reveals five new cryptic species and multiple hybrid zones among Australian earless dragons [PDF]

open access: yesRoyal Society Open Science, 2019
Cryptic lineages, comprising species complexes with deep genetic structuring across the landscape but without distinct morphological differences, impose substantial difficulties for systematists and taxonomists in determining true species diversity. Here,
Jane Melville   +5 more
doaj   +1 more source

Development of a synthetic phantom for the selection of optimal scanning parameters in CAD-CT colonography

open access: yes, 2006
The aim of this paper is to present the development of a synthetic phantom that can be used for the selection of optimal scanning parameters in computed tomography (CT) colonography. In this paper we attempt to evaluate the influence of the main scanning
Shane Foley   +11 more
core   +1 more source

CT Scanning [PDF]

open access: yes, 2011
Since its introduction in 1972, X-ray computed tomography (CT) has evolved into an essential diagnostic imaging tool for a continually increasing variety of clinical applications.

core   +1 more source

Is a staged reloading protocol effective to time the removal of circular frames?: a retrospective analysis

open access: yesBone & Joint Open, 2022
Aims: The timing of when to remove a circular frame is crucial; early removal results in refracture or deformity, while late removal increases the patient morbidity and delay in return to work.
Vilas Sadekar   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy