Influences of bit profiles on possible fracture modes
Petroleum Exploration and Development, 2017 The influence of different bit profiles on possible fracture modes was investigated using Finite Element Method. The International Association of Drilling Contractors (IADC) classification was used to design 14 types of profiles.
Seyed Ali HEYDARSHAHY +1 more
doaj +1 more source
ANALISA BEBAN UDARA SEBAGAI MEDIA PENDINGIN DIKONDENSOR PADA TRAINER COLD STORAGE
Jurnal Teknik Mesin, 2020 Kondensor pada sistem refrigerasi berfungsi untuk membuang udara panas ke lingkungan sekitar dan merubah refrigeran dari gas ke cair. Kualitas kondensor sangat berpengaruh pada kualitas produk yang didinginkan, dari itu peneliti tertarik meneliti beban ...
Eis Saputra
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DNA barcoding and species delimitation of crickets, katydids, and grasshoppers (Orthoptera) from Central and Southern Europe, with focus on the Mediterranean Basin [PDF]
Arthropod Systematics & PhylogenyThe Mediterranean Basin, recognized as a global biodiversity hotspot, harbors a remarkable diversity of grasshoppers, katydids, and crickets, many of which are endemic and potentially contain cryptic lineages.
Mattia Ragazzini +5 more
doaj +3 more sources
رفتار خوردگی پوششهای نانوبلورین نیکل اعمالی بر روی آلیاژ منیزیم AZ91 بهروش آبکاری الکتریکی [PDF]
نشریه مهندسی متالورژی و مواد, 2015 در این تحقیق، پوشش نیکل بهروش آبکاری الکتریکی بر روی آلیاژ منیزیم AZ91 اعمال شد و مقاومت بهخوردگی آن با آلیاژ منیزیم AZ91 و نیکل خالص با استفاده از آزمونهای پلاریزاسیون و طیفسنجی امپدانس الکتروشیمیایی (EIS) در محلول 5/3 درصد وزنی کلرید سدیم مقایسه ...
آرمان زارع بیدکی +2 more
doaj +1 more source
Performance and influencing factors of organic amine electrochemical regeneration system
Meitan xuebao, 2023 In the context of carbon neutrality, the carbon capture, utilization and storage (CCUS) is a key technology to achieve energy conservation and emission reduction.
Nan XU +5 more
doaj +1 more source
Hinode/EIS spectroscopic validation of very hot plasma imaged with Solar Dynamics Observatory in non-flaring active region cores [PDF]
, 2012 We use coronal imaging observations with SDO/AIA, and Hinode/EIS spectral data, to explore the potential of narrow band EUV imaging data for diagnosing the presence of hot (T >~5MK) coronal plasma in active regions.
Brooks +19 more
core +2 more sources
Zaštita Materijala, 2020 Expired nizatidine drug (END) was studied as inhibitor for a-brass in 1M HCl utilizing weight loss (WL), and electrochemical methods namely, AC impedance (EIS), Potentiodynamic polarization (PP), and electrochemical frequency modulation (EFM) tests.
Ahmed Reham Ezzat, Howaida Ibrahim
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Electrochemical and molecular simulation studies on the corrosion inhibition of L-glutamine monolayers on an iron surface [PDF]
Journal of the Serbian Chemical Society, 2009 L-Glutamine was used to form monolayers for the inhibition of the corrosion of iron in 0.50 mol dm-3 H2SO4. The protection ability of the films was examined by electrochemical impedance spectroscopy. The mechanism of adsorption is discussed using quantum
Zhang Zhe +5 more
doaj +1 more source
Hinode EUV Imaging Spectrometer Observations of Solar Active Region Dynamics [PDF]
, 2007 The EUV Imaging Spectrometer (EIS) on the Hinode satellite is capable of measuring emission line center positions for Gaussian line profiles to a fraction of a spectral pixel, resulting in relative solar Doppler-shift measurements with an accuracy of ...
Brooks, David H. +5 more
core +2 more sources
How to Model the Near-to-the-Carrier Regime and the Lower Knee Frequency of Real RF Oscillators
Journal of Electrical and Computer Engineering, 2010 Numerous empirical data demonstrate that real noisy RF oscillators are affected by power-law phase noise. However, until recently, the robust analytic modeling of the deep-into-the-carrier spectral regime of RF oscillators was intangible due to the ...
Arsenia Chorti
doaj +1 more source