Results 111 to 120 of about 27,452 (263)

METODOLOGÍA PARA LA OPTIMIZACIÓN DE PARÁMETROS DE PERFORACIÓN A PARTIR DE PROPIEDADES GEOMECÁNICAS

Revista Fuentes El Reventón Energético, 2012
Drilling optimization is focused on time operational cost reduction. This can be accomplished from the evaluation of drilling parameters used during offset wells drilling and the development of continuous improvement programs and performance efficient ...
Diego Fernando Suárez, Helmut Esteban Portilla, Reinel Corzo Rueda   +2 more
doaj  

Numerical Simulation on Dynamic Response of Drilling Parameters in Loaded Rock Mass

Applied Sciences
The characterization of the mechanical parameters of rock mass is a basic problem in the field of rock mechanics, and it is also an important basis for surrounding rock classification, stability analysis, and support design in underground engineering ...
Yujing Jiang, Zongmeng Bai, Decheng Ge, Jiankang Liu, Hengjie Luan, Yining Zheng   +5 more
doaj   +1 more source

Data-Driven Modeling Approach for Pore Pressure Gradient Prediction while Drilling from Drilling Parameters. [PDF]

ACS Omega, 2021
Abdelaal A, Elkatatny S, Abdulraheem A.
europepmc   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

Advanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh, Andrin Lustgarten, Stefan Schoenwald, Enrico Boschi, My Hanh Bui, Ali Miserez, Felix Donat, Christoph R. Müller, Raffaele Mezzenga   +8 more
wiley   +1 more source

Enhanced Lithology Recognition in Coal Mining: A Data-Driven Approach with DBO-BiLSTM and Wavelet Denoising

Applied Sciences
This study investigates the relationship between anchor cable drilling parameters and roadway roof strata properties. The goal is to enable rapid and accurate rock type identification.
Jian Cui, Ziwei Ding, Chaofan Zhang, Jiang Liu, Wenxing Zhang   +4 more
doaj   +1 more source

Far‐Infrared Hyperbolic Phonon–Polaritons in Zirconium Disulfide

Advanced Materials, EarlyView.
An unpatterned ZrS2${\rm ZrS}_2$ flake, coupled to far‐field infrared light by metal nanoribbons, reveals hyperbolic phonon polaritons with multiple higher‐order branches and effective refractive indices up to 223. This resonator‐assisted approach establishes ZrS2${\rm ZrS}_2$ as a compact van der Waals platform for deeply subwavelength far‐infrared ...
Subhodip Saha, Ryan Kowalski, Joseph R. Matson, Thomas G. Folland, Tony Low, Joshua D. Caldwell, In‐Ho Lee, Sang‐Hyun Oh   +7 more
wiley   +1 more source

CVD Grown Hybrid MoSe2–WSe2 Lateral/Vertical Heterostructures With Strong Interlayer Exciton Emission

Advanced Materials, EarlyView.
A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain, Sai Shradha, Axel Printschler, Julian Picker, Luc F. Oswald, Julian Führer, Nicole Engel, Honey Jayeshkumar Shah, Christof Neumann, Daria I. Markina, Moritz Quincke, Johannes Biskupek, Kenji Watanabe, Takashi Taniguchi, Ute Kaiser, Bernhard Urbaszek, Andrey Turchanin   +16 more
wiley   +1 more source

A Wireless, Passive Multimodal Wearable Sensor With Decoupled Sensing Capabilities

Advanced Materials, EarlyView.
A wireless passive multimodal electronic skin is presented for the simultaneous perception of pressure, humidity, and odor through a frequency‐divided LC resonator array. The decoupled sensing architecture suppresses cross‐interference and enables independent signal readout under superimposed stimuli while maintaining high stability.
Wenjiang Han, Heng Xiao, Tianshuang Wang, Xiaoran Ding, Liupeng Zhao, Seokjoo Cho, Peng Sun, Inkyu Park, Geyu Lu   +8 more
wiley   +1 more source

Escaping the Scaling Relationships in Oxygen Reduction Catalysis: Implications for PEM Fuel Cells

Advanced Materials, EarlyView.
Escaping the scaling relationships of the oxygen reduction reaction is vital for hydrogen fuel cells. This outlook examines how interfacial heterogeneity, spanning the subsurface lattice, chemisorption layer, and near‐interface solvation volume, mechanistically decouples intermediate binding energetics.
Muhammad Bilal Wazir, Lourdes F. Vega, Maryam Khaleel   +2 more
wiley   +1 more source

System control parameters of drilling

, 2016
The article analyzes control system of drilling parameters.Describes a list of basic monitored parameters.Use of indirect calculations is proposed to reduce the number of these parameters.
openaire   +1 more source