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ABSTRACT A formation inversion algorithm with real‐time performance and accuracy is crucial for natural gamma logging while drilling (LWD). However, traditional inversion algorithms are often limited by high computatio...

Background/Aim: The drilling process for insertion of an implant should be as conservative as possible, as not to damage the future implant bed. If this drilling is conservative additional bone can be obtained to be used...

Background: Non-traumatic osteonecrosis of the femoral head (ONFH) can progress to severe osteoarthritis without early intervention. The modified light bulb (MLB) and multiple drilling (MD) techniques aim to preserve the...

Abstract In this study, aluminium (Al) matrix composites reinforced with 0, 5, and 10 vol% silicon carbide (SiC) particles were fabricated by direct hot-pressing under 35 MPa pressure at 600 °C for a holding time of 5...

ObjectiveRescue drilling rigs undergo intense vibration at borehole mouths when operating in a confined underground space of coal mines. To address this issue, this study designed a compact multi-directional, passive dyn...

Abstract In recent years, the number of patients with orthopedic diseases such as cervical spondylosis has increased, resulting in an increase in the demand for orthopedic surgery. However, thermal necrosis and bone crac...

Subsurface temperature uncertainty represents a major risk in geothermal drilling, particularly in volcanic systems where permeability, lithology, and fluid circulation create highly heterogeneous thermal regimes. This s...

"The aim of this work is to evaluate the espina corona gum (ECG) as a sustainable viscosifier or filtration reducer additive in water-based drilling fluids (WBMs) as a potential replacement of guar gum (GG). ECG is a gal...

Abstract Accurate and real-time prediction of lost circulation is essential for ensuring drilling safety and operational efficiency. Existing data-driven approaches, however, often lack effective integration of domain ex...

ABSTRACT The aim of this study was to report the first case of surgical talocalcaneal arthrodesis combined with surgical drilling of the distal intertarsal and tarsometatarsal joints in a Mangalarga Marchador horse. The ...

Using the method of pressure balance with balance energy forms, calculations are made hidrotermodynamichni mobile hydraulic flow in the well drilling fluids, water-based, which accumulate and transmit energy to other ele...

Book review

Abstract Precise placement of orthodontic mini-implants (OMIs) in the anterior palate, particularly in the median and paramedian regions, is essential for reliable skeletal anchorage. Digitally planned insertion guides m...

Materie / parole chiave: dogs; drill guide; vertebra; patient-specific

Materie / parole chiave: Science: Geology

"Drilling fluids are employed in the operation of hydrocarbon exploitation. Two kinds of drilling fluids are commonly used: water based muds and oil based muds. The oil based muds are characterized by their high performa...

Materie / parole chiave: geology, ocean drilling, marine geophysics, seabed sampling, borehole observatories, geophysical logging; Science: Geology

Abstract Background Multicentric lymphoma (ML) in dogs resembles non‐Hodgkin lymphoma (NHL) in humans. Human NHL is associated with multiple environmental exposures, including to radon and volatile organic compounds (V...

Abstract The high-temperature rock drilling is a key process in the exploitation of the hot-dry-rock (HDR) geothermal energy. Understanding the abrasive characteristics of HDR is critical for drilling efficiency and cost...

Abstract Ultrasonic drilling has emerged as a prominent technique in extraterrestrial environments due to its advantageous features. However, its application in extraterrestrial sampling missions is constrained by challe...

ABSTRACT The aim of this study was to evaluate the precision of a new surgical drill guide model printed in 3D to assist in directing cervical transpedicular screw placement. Five canine cadavers underwent computed tomog...

"Accurate geomechanical evaluation of oil and gas reservoir rocks is important to provide design parameters for drilling, completion and predict production rates. In particular, shale reservoir rocks are geologically co...

The parameters obtained from the piezocone penetration tests (CPTU) have been widely used for soil profiling and geostratigraphy over the decades. In this study, large amount of CPTU soundings and parallel drilling borin...