Results 101 to 110 of about 9,817 (229)

Automated MWD data processing and unified database building

open access: yes
Continuous forecasting of the ground conditions ahead of the tunnel face during construction projects like tunneling is of great interest. Nowadays, in tunneling projects, analyzing the acquired measurement-while-drilling (MWD) data has been demonstrated
Larsson, Stefan   +3 more
core  

Soil properties included bulk density, porosity, MWD and GMD under different treatments.

open access: yes, 2017
Soil properties included bulk density, porosity, MWD and GMD under different treatments.
Xuebo Zheng (3710500)   +3 more
core   +1 more source

MWD Data-Based Rock Mass Classification Using Machine Learning Techniques [PDF]

open access: yes
The classification of rock mass quality plays an important role in tunnel design and construction, and it is often a challenging task. The traditional empirical approaches for identifying rock mass quality are subjective, and this study explores an ...
Panthi, Krishna Kanta   +3 more
core  

PENGARUH DISIPLIN KERJA DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN DI PT MWD BOY BERSATU SKRIPSI [PDF]

open access: yes
, Muhamad Anas Saifudin, 2024 Pengaruh Disiplin Kerja dan Lingkungan Kerja terhadap Kinerja Karyawan di PT MWD Boy Bersatu. Skripsi, Program Studi Manajemen Sumber Daya Manusia, Fakultas Ekonomi, Universitas Islam Majapahit (UNIM). Pembimbing I : Dr. H.
saifudin, M. anas   +2 more
core  

Improving Data Quality with Advanced Pre-Processing of MWD Data

open access: yes
In geotechnical engineering, an accurate prediction is essential for the safety and effectiveness of construction projects. One example is the prediction of over/under-excavation volumes during drill and blast tunneling.
Alla Sapronova, Thomas Marcher
core   +1 more source

MWD და LWD ტელემეტრიული სისტემების გამოყენების ტექნოლოგია გამრუდებული და ჰორიზონტალური ჭაბურღილების ბურღვისა

open access: yes, 2017
В работе рассматриваются результаты применения MWD и LWD телеметрических систем контроля, измерения процессов проводки и пространственного управления нефтяными и газовыми скважинами в наклонно-направленном и горизонтальном бурения. С помощью этих систем
Хундадзе, Н.Ш.   +8 more
core   +1 more source

Sensitivity analyses of the 6 MWD and Tiffenau index, excluding low-quality trials.

open access: yes, 2016
Sensitivity analyses of the 6 MWD and Tiffenau index, excluding low-quality trials.
Pu Wang (171923)   +6 more
core   +1 more source

MWD instability of divinyl and monovinyl addition copolymerization in continuous-flow stirred reactors

open access: yes, 2015
The effect of divinyls addition copolymerization on MWD polydispersity is calculated for a continuous- flow stirred reactor. The model rigorously accounts for backbone pendant vinyls over the MWD and predicts that at high divinyls conversion the onset of
Arriola, Daniel
core  

Measurement-while-drilling (MWD) development for air drilling [PDF]

open access: yes, 1992
The objective of this program is to tool-harden and make commercially available an existing wireless MWD tool to reliably operate in an air, air-mist, or air-foam environment during Appalachian Basin oil and gas directional drilling operations in ...
Harrison, W. H.   +2 more
core  

Sensitivity analyses excluding trials with low quality for 6 MWD and dyspnea.

open access: yes, 2013
6 MWD, 6-minute walking distance; n, number of patients; N, number of trials.
Hong-Mei Yao (405377)   +3 more
core   +1 more source

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