Results 21 to 30 of about 2,069,018 (295)

Toward the precision breast cancer survival prediction utilizing combined whole genome-wide expression and somatic mutation analysis

open access: yesBMC Medical Genomics, 2018
Background Breast cancer is the most common type of invasive cancer in woman. It accounts for approximately 18% of all cancer deaths worldwide. It is well known that somatic mutation plays an essential role in cancer development. Hence, we propose that a
Yifan Zhang   +5 more
doaj   +1 more source

Experimental and Numerical Study of the Uniaxial Compressive Stress-Strain Relationship of a Rock Mass with Two Parallel Joints

open access: yesArchives of Civil Engineering, 2019
A “rock bridge”, defined as the closest distance between two joints in a rock mass, is an important feature affecting the jointed rock mass strength.
Xiong L. X.   +4 more
doaj   +1 more source

Effect of Joint Density on Rockburst Proneness of the Elastic-Brittle-Plastic Rock Mass

open access: yesShock and Vibration, 2021
The prediction of rockburst proneness is the basis of preventing and controlling rockburst disasters in rock engineering. Based on energy theory and damage mechanics, the quantitative functional relationship between joint density and energy density was ...
Jiliang Pan, Fenhua Ren, Meifeng Cai
doaj   +1 more source

Evolution Characteristics of Plastic Zone in Jointed Rock Mass of High-Temperature Hydraulic Tunnel

open access: yesApplied Sciences, 2023
The evolution characteristics and the extent of the plastic zone in rock mass can reflect the failure characteristics and destruction degree of a hydraulic tunnel.
Kangbin Li   +3 more
doaj   +1 more source

Stress effect & scale effect on shear properties of double saw-tooth rock joint surface

open access: yesApplied Rheology, 2021
The shear properties of rock joint control the stability of rock and have an important impact on natural disasters such as landslides and debris flow. In order to study the stress effect and scale effect of shear properties of double saw-tooth rock joint,
Luo Zhanyou   +4 more
doaj   +1 more source

The characterisation and analysis of in-situ and blasted block-size distributions and the blastability of rock masses. [PDF]

open access: yes, 1997
PhDIn this thesis, previous research on discontinuity geometry, in-situ block size distribution (IBSD), blasted block size distribution (BBSD), and blastability of rock mass is discussed.
Lu, Ping
core   +4 more sources

IMAGE ANALYSIS FOR MODELLING SHEAR BEHAVIOUR

open access: yesImage Analysis and Stereology, 2011
Through laboratory research performed over the past ten years, many of the critical links between fracture characteristics and hydromechanical and mechanical behaviour have been made for individual fractures.
Philippe Lopez   +5 more
doaj   +1 more source

Analytical Time-Domain Solution of Plane Wave Propagation Across a Viscoelastic Rock Joint

open access: yes, 2022
The effects of viscoelastic filled rock joints on wave propagation are of great significance in rock engineering. The solutions in time domain for plane longitudinal ( P-) and transverse ( S-) waves propagation across a viscoelastic rock joint are ...
Laloui, Lyesse   +3 more
core   +2 more sources

THE SURVEY AND THE ANALYSIS OF ROCK JOINT AND THE DETERMINATION OF JOINTED ROCK MASS MODEL

open access: yesDoboku Gakkai Ronbunshu, 1996
原位置においてボーリング孔壁観察を行い, 得られた画像データをもとに不連続面の位置, 走向・傾斜, 開口幅等を画像処理により求めた. これらの結果を解析することにより, 2種類の不連続性岩盤のモデル化を行った. 一つは, 方向分析によって得られる不連続面群を用いた不連続体モデルである. 本研究では, 頻度, 面積, 開口幅を考慮した不連続面群の相対重要度を比較するパラメータの提案を行い, 実際の計測結果に適用を行った. もう一つは, 地質構造や不連続面の開口幅を考慮にいれて求めるき裂頻度をもとにした擬似連続体モデルの提案を行った. これにより, 変形性や透水性を検討する解析モデルや, ジオトモグラフィー解析などの精度向上に貢献する初期モデルの構築に利用できるものと考える.
Chikaosa Tanimoto   +4 more
openaire   +2 more sources

Single-Cell Transcriptomic Analysis Unveils Key Regulators and Signaling Pathways in Lung Adenocarcinoma Progression

open access: yesBiomedicines
Background: Lung adenocarcinoma (LUAD) remains a leading cause of cancer-related mortality despite advances in treatments, necessitating more effective therapeutic strategies.
Jialu Ma   +4 more
doaj   +1 more source

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