Results 81 to 90 of about 515,005 (311)

An enhanced classification of artificial ground [PDF]

, 2010
This report describes a detailed scheme for the mapping and recording of artificial ground. It presents codes and descriptions that underpin the entries in the British Geological Survey stratigraphical ...
Cooper, A.H., Ford, J., Humpage, A.J., Kessler, H., Price, S.J.   +4 more
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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

Geological map of Brazil - 2025 (scale 1:5,000,000): Methodology and main geological compartments

Journal of the Geological Survey of Brazil
The Geological Map of Brazil at the 1:5,000,000 scale was recently updated by the Geological Survey of Brazil (SGB-CPRM), in view of the availability of several geological maps and datasets released after the previous version, published in 2001. In this
Vladimir Medeiros, Frank Santos , Marcos Quadros, Elias Espírito Santo , Marcio Silva, Gustavo Moreira, Tiago Barros   +6 more
doaj   +1 more source

Correction to: Prioritizing river basins for intensive monitoring and assessment by the US Geological Survey. [PDF]

Environ Monit Assess, 2023
Van Metre PC, Qi S, Deacon J, Dieter C, Driscoll JM, Fienen M, Kenney T, Lambert P, Lesmes D, Mason CA, Mueller-Solger A, Musgrove M, Painter J, Rosenberry D, Sprague L, Tesoriero AJ, Windham-Myers L, Wolock D.   +17 more
europepmc   +1 more source

Commentary on a British Geological Survey Computing Archive (1965-85) [PDF]

, 1996
An account of the emergence of computer methods in geology, as a background to a restricted archive of documents which chronicle their application in the British Geological ...
Loudon, T.V.
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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

Improvement on Effective Separation between Cadmium and Tin in Soil Samples for the Determination of Cadmium Isotopic Composition

Yankuang ceshi, 2016
In order to determine Cd isotopic composition accurately, the key is to guarantee Cd recovery and reduce Sn interference.The recoveries of Cd with various separation and purification methods reported by previous studies show a large range variation from ...
DUAN Gui-ling, DUAN Rui-chun, TAN Juan-juan, GU Tao, SHAO Chang-sheng, LU Tao   +5 more
doaj   +1 more source

From iron to aggregates [PDF]

, 2010
One hundred and seventy-five years ago the supply of iron ore and coal were vital to maintain growth during the latter stages of the Industrial Revolution and the need for these minerals contributed to the founding of the British Geological ...
Bide, Tom
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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

Preliminary Report on the Water Resources of the Wailuku Area, Maui [PDF]

, 1970
Bibliography: leaf ...
Geological Survey (U.S.), Huxel, C.J., Yamanaga, George,1917-   +2 more
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