Results 21 to 30 of about 41,119 (267)

Effects of vugs on resistivity of vuggy carbonate reservoirs

open access: yesPetroleum Exploration and Development, 2020
: The pore structure characteristic parameters of vuggy carbonate reservoirs were extracted, and matrix resistivity of vuggy reservoir was calculated by the percolation network simulation.
Jiahuan HE   +7 more
doaj   +1 more source

A Brief Study of Methods to Determine the Electrical Resistivity of Materials

open access: yesIndonesian Journal of Applied Physics, 2023
Present study deals with the study of methods to calculate the resistivity of materials. Different methods are discussed which determine the resistivity of specific materials on the basis of their shapes and sizes.
Inzamam Khalid
doaj   +1 more source

Inversion of 1-D Resistivity Data using RR-PSO algorithm to identify Shallow Gas in Balikpapan [PDF]

open access: yesBIO Web of Conferences, 2023
In recent years shallow gas blowouts have occurred several times in Balikpapan residential areas due to drilling activities for groundwater exploration and geological structures that play as a gas trap.
Arung-Laby Dharma   +3 more
doaj   +1 more source

Detection of graves using the micro-resistivity method

open access: yesAnnals of Geophysics, 2006
This paper describes a case history of the application of resistivity methods on the detection of a tomb tentatively associated with Damião de Goes, a prominent Portuguese humanist who lived in the XVI century. The survey carried out inside Varzea Church
R. Luzio   +4 more
doaj   +1 more source

Measurement method of borehole wall resistivity for coal mine gas extraction

open access: yesGong-kuang zidonghua, 2022
For borehole wall state detection of horizontal directional kilometer drilling rig used for coal mine gas extraction, it is considered through analysis that the commonly used logging technologies such as gamma ray method and ultrasonic method are ...
LI Jie   +5 more
doaj   +1 more source

Experimental study on the electrical resistivity characteristics of sand under different testing conditions

open access: yes地质科技通报, 2023
Objective The results of laboratory tests on the electrical resistivity of sand are widely used in the interpretation of field electrical resistivity tomography.
Shuqing Yuan   +3 more
doaj   +1 more source

Cross-Gradient Constrained Joint Inversion of Seismic Impedance and Resistivity

open access: yesApplied Sciences
Individual geophysical inversions reflect only limited physical parameters of the subsurface and often suffer from non-uniqueness. Joint inversion of different geophysical datasets can mitigate this problem by integrating complementary information.
Deyong Wu   +5 more
doaj   +1 more source

Simulation of high density electrical detection of goaf and burnt-out area in coal mine

open access: yesMeikuang Anquan, 2023
The purpose of this article is to effectively identify and distinguish the anomaly characteristics of resistivity in the burnt-out area and in the goaf area of the coal mine in the method of the electrical resistivity tomography in the practice work ...
ZHANG Hong
doaj   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier   +10 more
wiley   +1 more source

Personalized Zebrafish Models for Fusion‐Positive Pediatric Sarcomas

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Clinical sequencing efforts have revolutionized our approaches to categorizing pediatric cancers in real time. This has dramatically improved our ability to profile pediatric tumors, identify actionable vulnerabilities, and influence clinical care.
Lisa H. Hall   +2 more
wiley   +1 more source

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