Results 111 to 120 of about 7,646,835 (347)

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

Urban and Rural Landslide Hazard and Exposure Mapping Using Landsat and Corona Satellite Imagery for Tehran and the Alborz Mountains, Iran

AIMS Geosciences, 2017
Tehran, Karaj, Quazvin and nearby rural areas in the Alborz Mountains, Iran are prone to earthquake and landslide hazards. Risks for settlement areas, transport infrastructure and pastoralist areas exist due to a combination of natural as well as man ...
Alexander Fekete
doaj   +1 more source

Mechanical property variation mechanisms of granite subjected to real‐time high temperatures and subsequent cooling treatment

Deep Underground Science and Engineering, EarlyView.
This study investigates the coupled thermo‐mechanical behavior of granite during heating and cooling through a combination of laboratory tests and finite element analysis. The thermal conductivity, mineral composition, mass loss rate, micro‐crack observation, and thermal fracture characteristics of granite under various temperature conditions are ...
Rui Pang, Dehao Meng, Thomas Frühwirt, Hao Liu, Yanan Zhao, Qingyou Zhu, Wengang Dang, Mohamed Ismael, Fei Wang   +8 more
wiley   +1 more source

Machine-learning detection of slow slip events in western Shikoku, Japan, through joint analysis of seismic and geodetic data

Earth, Planets and Space
Over the past decade, short-term slow slip events (S-SSEs) have been detected along the entire Nankai Trough using Global Navigation Satellite System (GNSS) data.
Kazuki Ohtake, Aitaro Kato, Yutaro Okada, Takuya Nishimura   +3 more
doaj   +1 more source

Identifying and prioritizing the factors affecting the increase of earthquake risk in worn-out urban areas with a combined approach of fuzzy Delphi technique and BMW model [PDF]

تحقیقات کاربردی علوم جغرافیایی, 2020
Today, the vulnerability of cities, especially the old and worn-out tissues to earthquakes, has become a global issue for experts in various fields. This situation has become more acute in countries with dangerous natural structures, including Iran, in ...
Ehsan Arkani, Hossein Hatami Nejad, Soheil Qare   +2 more
doaj  

A Comprehensive Numerical Model for Reservoir-Induced Earthquake Risk Assessment. [PDF]

Entropy (Basel), 2023
Peng X, Zhao R, Deng K.
europepmc   +1 more source

Are People Insured Against Natural Disasters? Evidence from the Great Hanshin-Awaji (Kobe) Earthquake in 1995 [PDF]

We investigate whether people were insured against unexpected losses caused by the Great Hanshin-Awaji (Kobe) earthquake in 1995. The unique household data employed led to several empirical findings under a natural-experimental situation.
Satoshi Shimizutani, Yasuyuki Sawada
core  

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

Deep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang, Chongyang Liu, Ao Zhang, Xiaoyan Zhang, Yuhang Li   +4 more
wiley   +1 more source

Earthquake risk [PDF]

Nature, 1989
openaire   +3 more sources

Binaların Deprem Risk Durumlarının Çok Faktörlü Bir Modelle Belirlenmesi

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2022
Bu çalışmada, Sakarya İli, Akyazı ilçe merkezinde 1967-1999 depremleri arasında yapılan 12 eski binanın deprem risk durumları çok faktörlü bir model ile belirlenmiştir.
Hüseyin Bayraktar, Ercan Ozgan, Sinan Gül   +2 more
doaj