Results 131 to 140 of about 633,289 (344)

Tribological tests of wear-resistant coatings used in the production of drill bits of horizontal and inclined drilling [PDF]

open access: diamond, 2017
A L Maslov   +4 more
openalex   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

open access: yesAdvanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh   +2 more
wiley   +1 more source

Spatiotemporal Plasma–Mediated Laser Fabrication of Ultrahigh‐Aspect‐Ratio Nanochannel Arrays for Vertical Perovskite Nanowire Semiconductor Devices

open access: yesAdvanced Functional Materials, EarlyView.
A spatiotemporal plasma–mediated laser processing approach is developed to fabricate ultrahigh–aspect ratio nanochannel arrays and corresponding perovskite nanowire arrays within transparent materials for optoelectronics devices. The laser‐fabricated nanochannels serve as templates for controlled perovskite infiltration and crystallization, enabling ...
Taijin Wang   +3 more
wiley   +1 more source

PENERAPAN METODE PEMBELAJARAN KOOPERATIF SNOWBALL DRILLING UNTUK MENINGKATKAN HASIL BELAJAR MATA PELAJARAN SISTEM PEMINDAH TENAGA KOMPETENSI MEMELIHARA TRANSMISI KELAS XI TEKNIK KENDARAAN RINGAN SMK NEGERI 1 GANTIWARNO, KLATEN TAHUN AJARAN 2010/2011 [PDF]

open access: yes, 2011
Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa dengan memperbaiki proses pembelajaran dalam mata pelajaran sistem pemindah tenaga kompetensi memelihara transmisi melalui metode pembelajaran snowball drilling dan mengetahui seberapa besar
Agung Cipto, Pratomo
core  

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

open access: yesAdvanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao   +17 more
wiley   +1 more source

Dynamic response of aerodynamic flutter of blooie line during gas drilling in mountain areas

open access: yesAIP Advances
Gas drilling technology remains a superior method for discovering and protecting oil and gas reservoirs in the petroleum exploration and development industry. However, its widespread application and further advancement have been significantly hindered by
Dianchen Liu   +5 more
doaj   +1 more source

Improving Energy Efficiency in the Management of Drilling Waste from Trenchless Gas and Power Pipeline Construction Through the Implementation of Photovoltaic Panels and Circular Economy Principles

open access: yesEnergies
The modern construction of transmission networks for transporting energy resources (e.g., crude oil, gas, hydrogen) or electricity is increasingly being carried out using trenchless technologies.
Aleksandra Jamrozik   +2 more
doaj   +1 more source

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