Results 41 to 50 of about 16,082 (297)
A Novel Mesoscopic Drill Bit Model for Deep Drilling Applications
Modelling, 2023 This paper deals with the development of a novel mesoscopic model of polycrystalline diamond compact (PDC) drill bits that can be implemented in complex drill string models for simulations to analyse the influence of rock inhomogeneities or the impact of
Mohamed Ichaoui +2 more
doaj +1 more source
3D Printing Innovations in Polymeric Porous and Patterned Architecture
Advanced Functional Materials, EarlyView.Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil +13 more
wiley +1 more source
Technological providing of PDC drill bit quality
, 2021 Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.02.08 – Технологія машинобудування. – Тернопільський національний технічний університет імені Івана Пулюя, Тернопіль, 2021.
Пригоровська, Тетяна Олексіївна
core
Advanced Functional Materials, EarlyView.Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda +9 more
wiley +1 more source
BioengineeringTo ensure the prevention of thermal trauma and tissue necrosis during bone drilling in surgical procedures, it is crucial to maintain temperatures below the time- and temperature-dependent threshold of 50 °C for 30 s.
Sihana Rugova, Marcus Abboud
doaj +1 more source
PENGELASAN TUNGSTEN BIT PADA DRILL BIT DENGAN MENGGUNAKAN LAS ASETILIN
, 2010 Berdasarkan definisi dari Dutche industrie Normen (DIN) Las adalah ikatan metalurgi pada sambungan logam atau logam paduan yang dilaksanakan dalam keadaan lumer atau cair.
Arnoldi, Dwi, Dwi Arnoldi
core +1 more source
Advanced Healthcare Materials, EarlyView.ABSTRACT The ascent of novel alternative methods in drug development spotlights the dual needs for improved biological fidelity to in vivo, along with reproducibility, especially in regulatory applications. The need for pre‐clinical models of patient‐derived endometriosis lesions motivates the development of a vascularizable, completely synthetic ...
Lauren Pruett +7 more
wiley +1 more source
Migration of a Broken Drill Bit After Acetabular Fracture Fixation. A Case Report [PDF]
Malaysian Orthopaedic Journal, 2011 Breakage of the drill bit is common in orthopaedic procedures, but migration of the broken drill bit is rarely reported. We report a case of migration of a broken drill bit five years after acetabular fracture fixation.
Jamot S, Razif A, Azhar MM, AA Abbas
doaj
Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy
Advanced Healthcare Materials, EarlyView.Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima +15 more
wiley +1 more source
On physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations
Petroleum, 2020 This paper introduces physical models of drill string whirling and torsional vibrations and analyses the physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations: “V.I. Gulyayev, L.V.
Zifeng Li, Chaoyue Zhang, Guangming Song
doaj +1 more source