Results 91 to 100 of about 351,753 (315)

Sub‐Micrometer‐Precision Path Following of Piezo‐Actuated Mobile Robot

Advanced Intelligent Systems, EarlyView.
This article reports on the Holonomic‐Beetle (HB), a palm‐sized robot that achieves sub‐micrometer (sub‐µm) precision path tracking across spatial ranges from 100 µm to 10 mm. Using proportional‐integral‐derivative (PID) control, the HB accurately tracks both complex and straight paths with sub‐µm path errors, surpassing existing robots.
Eiji Kusui, Chihiro Sekine, Taiki Goto, Ryosuke Kinoshita, Yuko Nishimura, Shogen Sekiguchi, Satoshi Ando, Yuto Oishi, Yusuke Matsui, Ohmi Fuchiwaki   +9 more
wiley   +1 more source

Karst, GIS and geological hazard planning and management in Great Britain [PDF]

, 2010
The British Geological Survey (BGS) database of karst features for the United Kingdom include dolines, cave entrances, stream sinks, resurgences and building damage; data for approximately half of the country has so far been gathered.
Cooper, A.H., Farrant, A.R., Price, S.J.
core  

Mechanism of Hydrogen Sulfide Generation and Prevention Strategies in Oil and Gas Fields: A Case Study of the Sickle Bay Operation Area

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To address the persistent exceedance of hydrogen sulfide (H2S) concentrations and the limited effectiveness of existing treatments in the Sickle Bay oil production area, this study deeply analyzes the mechanism of H2S generation in the Sickle Bay oil production area and proposes targeted prevention and control strategies. The results show that
Bo Lei, Yao‐long Li, Bao‐ping Bai, Xiang‐de Zhang, Guan‐tao Shi, Yong‐long Xie, Chen‐xiao Hou, Cong‐Yu Ke   +7 more
wiley   +1 more source

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir, Abderrahim Benzaouia, Said Kounbach, Abdelghani Laamaoui, Said Laassiri, Khalil El‐Hami, Rachid Benhida   +6 more
wiley   +1 more source

Identification of the near-surface geological structure and deposits for land use planning purposes in the Doubrava Region (Czech Republic) [PDF]

, 2013
The objective of this paper is to highlight the importance of taking engineering geological characteristics and structures into account in land use planning. There have been a number of studies worldwide dealing with this issue.
Bednárik, Martin, Kubečka, Karel, Marschalko, Marian, Yilmaz, Işık   +3 more
core  

Bridge distress caused by approach embankment settlement [PDF]

, 2008
Surtees Bridge, which carries the A66(T) over the River Tees near Thornaby-on-Tees in the UK, has been showing signs of distress that predate its opening in 1981.
Allied Exploration and Geotechnics Limited, Barker R. M., British Geological Survey (BGS), Bullen and Partners, C. A. Jones, C. J. Danilewicz, Casagrande A., D. I. Stewart, Exploration Associates, Hopkins T. C., Lambe T. W., Mcclave J. T., Mindess S., Moore D. S., Moulton L. K., Osterberg J. O., Padfield C. J., Ritchies, Ritchies, Soil Mechanics, Soil Mechanics   +20 more
core   +1 more source

Semi‐automated assessment for NatureServe subnational conservation status ranks for state floras

Applications in Plant Sciences, EarlyView.
Abstract Premise Conservation status ranks measure the potential risk of extinction for species at global, national, and subnational levels, taking into account rarity, threats, and trends. These assessments are largely incomplete due to funding and resource limitations.
Julia H. Prins, Joey Shaw
wiley   +1 more source

Editorial: Hydro-Mechanical Coupling and Creep Behaviors of Geomaterials

Frontiers in Earth Science, 2021
Yanlin Zhao, Lianyang Zhang, Yixian Wang, Hang Lin   +3 more
doaj   +1 more source

To the problem of engineering construction of territories assessment based on local natural and technogenic factors (Reni district, Odessa region as an example)

Геофизический журнал, 2015
This article is devoted to the problem of influence of local natural and technogenic factors on the engineering geological conditions change of building sites, the Reni district of Odessa region as an example.
P. Zhyrnov
doaj   +1 more source

Seismic site effects in a deep alluvial basin: numerical analysis by the boundary element method [PDF]

, 2002
The main purpose of the paper is the numerical analysis of seismic site effects in Caracas (Venezuela). The analysis is performed considering the boundary element method in the frequency domain.
A.M. Duval, Anandarajah, Bard, Bonnet, Chávez-Garcı́a, Dangla, Faccioli, Guéguen, Humbert, J.F. Semblat, Moeen-Vaziri, P. Dangla, Pedersen, Semblat, Semblat, Semblat, Semblat, Shames, Somerville, Theodulidis   +19 more
core   +5 more sources